WO2018164467A1 - Sewing structure and method dispensing with lower thread, and sewing device therefor - Google Patents

Abstract

The present invention relates to a sewing structure and method dispensing with lower thread, and a sewing device therefor and, more specifically, to a sewing structure and method dispensing with lower thread, and a sewing device therefor, which can sew a sewn product with only the upper thread, without using the lower thread, and thus can reduce the manufacturing cost, increase productivity, and improve the quality of sewing.

Description

Sewing structure, sewing method and sewing device for same without bobbin thread

The present invention relates to a sewing structure, a sewing method and a sewing apparatus for the same, which does not have a lower thread, and more particularly, by allowing the sewing material to be sewn with only the upper thread without the lower thread, manufacturing cost can be reduced. The present invention relates to a sewing structure, a sewing method, and a sewing apparatus for the same, which are not provided with a lower thread capable of improving productivity as well as improving sewing quality.

In general, sewing operations using a sewing machine is made by alternately sewing the upper thread (aka, sewing thread) of the upper part and the lower thread (aka, drum thread) of the drum (aka, also called drum).

However, because the book is small in size, there is a limit to the length of the bobbin that can be wound, and the bobbin thread is dropped due to the continuous use of the sewing machine, and a manual work needs to be replenished every short time. In addition, the book requires a preliminary work to wrap the bobbin before use, such a preliminary work requires a separate dedicated equipment and takes a lot of time and labor costs.

As a solution for solving the above-mentioned disadvantages, a "receiver feeder for sewing machine" as disclosed in Korean Patent Publication No. 1995-0011286 (Notification Date: 1995. 09.30; Application No.:10-1993-0030043) is proposed. It is proposed, as described in the Republic of Korea Patent Application Publication No. 10-1988-0001868 "the lower thread supply device of the sewing machine" has been proposed.

According to the conventional lower thread supply device of the conventional sewing machine as described above, in theory, the lower thread can be continuously supplied without interruption during sewing operations, but is practically impossible due to its complicated structure and the complicated driving mechanism of the sewing machine. This commercialized sewing machine is also absent.

Even if the lower thread is continuously supplied by the lower thread supply device of the conventional sewing machine, the lower thread is disconnected due to excessive tensile force, friction, or interference in the sewing process, and thus needs to be connected. There is a disadvantage that causes a decrease.

The present invention has been proposed in view of the above, by sewing the sewing material with only the upper thread without having a lower thread, it is possible to reduce the manufacturing cost and improve productivity as well as to improve the quality of the sewing product It is an object of the present invention to provide a sewing structure, a sewing method, and a sewing device therefor, which are not provided with a bobbin thread.

In order to achieve the above object, a sewing device for a sewing structure having no lower thread according to the present invention is a thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And a heat source generating module disposed at the needle needle portion of the needle, converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator, and generating frictional heat in the fusion space through the horn to ultrasonically bond the upper thread to the sewing material. Characterized in that.

In order to achieve the above object, a sewing device for a sewing structure having no lower thread according to the present invention is a thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And a heat source generating module disposed at the needle needle portion of the needle, converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator, and generating frictional heat in the fusion space through the horn to ultrasonically bond the upper thread to the sewing material. And, the heat source generating module is characterized in that the needle inlet facing the needle and the needle inlet groove is formed in the horn.

Herein, the needle may be provided with a needle uneven portion protruding or recessed at a lower end of the needle body, and the horn is formed with a recess uneven portion protruding or protruding to correspond to the needle uneven portion.

On the other hand, in order to achieve the above object, a sewing device for a sewing structure having no lower thread according to the present invention is a thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And a heat source generating module disposed at the needle needle portion of the needle, converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator, and generating frictional heat in the fusion space through the horn to ultrasonically bond the upper thread to the sewing material. And, the heat source generating module is characterized in that it is arranged on the sewing material seating portion adjacent to the needle and configured to perform the pressing action of the sewing material.

In order to achieve the above object, a sewing device for a sewing structure having no lower thread according to the present invention is a thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And a heat source generating module for converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator and generating frictional heat in the fusion space through the horn to ultrasonically bond the upper thread to the sewing material. Characterized in that the module is configured.

Here, the needle may be coupled to the horn or may be configured as part of the horn, while the needle may be configured in plural.

And, in order to achieve the above object, a sewing device for a sewing structure having no lower thread according to the present invention is a thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; A heat source generating module for converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator and generating frictional heat in the fusion space through the horn for ultrasonic bonding of the upper thread to the sewing material; And it characterized in that it comprises a functional wire supply device for supplying a functional wire bound to the ring portion of the sweat formed by the upper thread in the sewing process.

The heat source generating module is configured to have a structure in which a needle insertion groove is formed in the sewing material seating unit facing the needle, and the needle insertion groove is formed, and includes a sewing material moving device for moving the sewing material disposed in the sewing material seating unit. Can be configured.

In addition, in order to achieve the above object, a sewing device for a sewing structure having no lower thread according to the present invention is a thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; A heat source generating module for converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator and generating frictional heat in the fusion space through the horn for ultrasonic bonding of the upper thread to the sewing material; Functional wire supply device for supplying the functional wire is bound to the hook portion of the sweat formed by the upper thread in the sewing process; And a moving device for moving the needle and the functional wire feeding device to place the functional wire in a desired path.

Here, the heat source generation module may be disposed on the upper portion of the sewing material mounting portion adjacent to the needle.

The horn may include a pressing member having a needle inlet groove and a horn body integrally formed with the gambling member, and a booster coupled to the horn body and the oscillator coupled to the booster. have.

In addition, the sewing device for a sewing structure not provided with a lower thread according to the present invention may further comprise a sewing material transfer unit for applying a transfer force to move the sewing material placed on the sewing material seating portion.

The functional wire supply device is a wire rod storage unit for storing the functional wire rod, a wire transfer unit for pulling the functional wire rods stored in the wire storage unit to supply to the sewing material, and a wire rod discharged from the functional wire rod transported by the wire transfer unit It may be configured to include a part.

On the other hand, the needle is a thread insertion hole is formed, the thread insertion hole may be formed to be shifted in the diagonal direction.

In this case, the thread insertion hole may be formed as a groove in which the inlet portion of the upper thread is recessed high and the outlet portion is recessed low.

The needle may have a cylindrical structure, or a structure in which a fusion protrusion protrudes from the lower end of the round bar body.

And, the needle is a thread insertion hole is formed, a plurality of the thread insertion hole may be formed along the vertical direction of the needle body.

In addition, the horn is formed in a structure in which a high protrusion is projected on one side of the needle inlet groove, a low protrusion is projected to a lower height than the high protrusion on the other side of the needle inlet groove, the needle is formed with a thread insertion hole The high protrusion may be disposed at the upper thread exit side of the thread insertion hole, and the low protrusion may be positioned at the upper thread inlet side of the thread insertion hole.

On the other hand, the needle may be formed of a cylindrical body having a hollow portion for retracting the upper thread. At this time, a wedge portion may protrude from the lower end of the cylinder.

Here, the injection device for the injection of cooling air or adhesive resin to the hollow portion of the needle may be configured.

In order to achieve the above object, the sewing structure having no bobbin according to the present invention, in the sewing structure, the sewing material; And an upper thread disposed to form a sweat on the sewing material, wherein the upper thread includes a ring part for forming the sweat and a fixing part that is melted and fixed to the tissue of the sewing material and formed below the ring part.

In order to achieve the above object, the sewing structure having no bobbin according to the present invention, in the sewing structure, the sewing material; And an upper thread disposed to form a sweat on the sewing material, wherein the upper thread includes a ring part for forming the sweat and a fixing part that is melted and fixed to the tissue of the sewing material and formed on the lower side of the loop part. And a functional wire rod disposed and constrained by the ring portion.

The upper thread may be configured to include a support line for forming the sweat, and a melting part formed of a material that is supplied with the support line and is meltable by heat.

Here, the support line may be formed of a non-heat-melting yarn that is not hot melt, the melting portion may be composed of a molten wire formed by fused with the non-melting yarn, or a laminated portion formed of a hot melt material and laminated on the non-melting yarn. have.

The support line and the melting part may be each formed of a melt wire formed of a material that is thermally melted, and the melting wire composed of the support line may be formed of a material having a higher melting point than that of the melting wire composed of the melting part.

The fastening part may be composed of a retractable fastening part formed by being drawn into the sewing material or a surface-type fastening part formed on the surface of the sewing material.

On the other hand, in order to achieve the above object, the sewing method without the lower thread according to the present invention in the sewing method without the lower thread, by using the needle to insert the upper thread into the interior of the sewing material or to supply to the surface of the sewing material Upper thread supply step; A fixing part forming step of forming a fixing part fixed to the sewing material after melting the upper thread part supplied as the sewing material; And it is characterized in that it comprises a sweat forming step of forming a ring-shaped ring portion after the execution of the fixing portion forming step.

And, in order to achieve the above object, the sewing method without the lower thread according to the present invention is a sewing method not provided with a lower thread, the functional wire supply step of supplying a functional wire; An upper thread feeding step of introducing the upper thread into the sewing material using the needle or supplying the upper thread to the surface of the sewing material; A fixing part forming step of forming a fixing part fixed to the sewing material after melting the upper thread part supplied as the sewing material; And a sweat forming step of forming a ring-shaped ring portion after the execution of the fixing portion forming step, wherein the upper thread supplying step, the fixing portion forming step, and the sweat forming step are such that the functional wire is restrained inside the ring portion. It is characterized in that it is carried out simultaneously with the execution of the functional wire supply step.

The upper thread supply step is performed by supplying the upper thread having a support line for forming a sweat, and the upper thread having a molten part formed with a meltable material supplied with the support line, and the fixing part forming step melts the molten part to form the fixing part. This can be done by ultrasonic welding.

In addition, the fixing part forming step is performed by using a heat source generating module for converting the ultrasonic wave generated from the ultrasonic generator into mechanical vibration through a vibrator and generating frictional heat through the horn by ultrasonically bonding the upper thread to the sewing material, the needle Is a thread insertion hole is formed to be shifted in a diagonal direction, and the upper thread is introduced into the upper hole of the thread insertion hole to be drawn out to the lower hole while the upper thread supplying step, the fixing part forming step, and the sweat forming step Can be repeated

The fixing part forming step is performed by using a heat generating module for ultrasonically bonding the upper thread to the sewing material by converting the ultrasonic wave generated from the ultrasonic generator into mechanical vibration through the vibrator and generating frictional heat through the horn. A high protrusion protrudes on one side of the inlet groove and a low protrusion protruding to a lower height than the high protrusion on the other side is used, and the upper thread is inserted and drawn out through the thread insertion hole of the needle, but the high protrusion is located. It can be implemented as the inlet and the part in which the low protrusion is located as the outlet.

The functional wire supplying step includes a wire rod supplying process for supplying the functional wire rod to the surface of the sewing material, and a wire rod arranging process for arranging the supplied functional wire rod in a predetermined path, wherein the wire rod placement process includes a drawing position of the functional wire rod. It can be carried out by moving the sewing in the fixed state, or by moving the withdrawal position of the functional wire.

According to the sewing structure, the sewing method and the sewing device therefor according to the present invention does not have a lower thread, the sewing operation is performed using only the upper thread, so that replacement of the lower thread or preparation work of the lower thread are unnecessary, so that the sewing is done quickly and easily. The work can be carried out, which can significantly improve productivity and reduce manufacturing costs.

According to the sewing structure, the sewing method, and the sewing device therefor according to the present invention, the problems such as cutting or damage of the lower thread can be fundamentally solved, and the quality of the sewing can be remarkably improved. In addition, it is possible to reduce the cost of equipment as well as reduce the cost of equipment by simplifying the equipment, thereby reducing downtime and reducing maintenance costs.

1 is a view for explaining a sewing structure having no bobbin thread according to a first embodiment of the present invention;

Figures 2a to 2c is a partially enlarged perspective view for explaining the upper thread applied to the sewing structure having no lower thread according to the first embodiment of the present invention,

Figure 3 is a perspective view showing a sewing structure without a lower thread according to a second embodiment of the present invention, an enlarged portion A1 is a cross-sectional view showing a simplified cross-sectional structure of the sewing, the enlarged portion A2 is a perspective view showing a part of the functional wire rod , Enlarged part A3 is a perspective view showing a part of the upper thread.

4 is a view for explaining a modification of the sewing structure without the bobbin according to the second embodiment of the present invention;

5 is a perspective view showing a sewing device for a sewing structure having no lower thread according to a first embodiment of the present invention;

6a to 6h are views showing the first to eighth modifications of the sewing device for the sewing structure without the lower thread according to the first embodiment of the present invention;

7 is a view for explaining a sewing method without a bobbin thread according to the first embodiment of the present invention;

8 is a perspective view showing a sewing device for a sewing structure having no lower thread according to a second embodiment of the present invention;

9 is a perspective view showing a sewing device for a sewing structure having no lower thread according to a third embodiment of the present invention;

10 is a view for explaining a first modified example of the sewing device for the sewing structure without the lower thread according to the third embodiment of the present invention;

11 is a view for explaining a sewing device for a sewing structure having no bobbin thread according to a fourth embodiment of the present invention;

12 is a view for explaining a sewing device for a sewing structure having no bobbin according to a fifth embodiment of the present invention;

FIG. 13 is a view for explaining a first modification of the sewing device for the sewing structure without the bobbin according to the fifth embodiment of the present invention.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, Figs. 1 to 13, and like reference numerals designate like elements in Figs. Meanwhile, the drawings and detailed descriptions of configurations, operations, and effects that can be easily understood by those skilled in the art from general technology in each drawing are briefly or omitted, and are illustrated based on parts related to the present invention.

1 is a view for explaining a sewing structure having no bobbin thread according to the first embodiment of the present invention, but shows a part of the sewing structure in cross-sectional view to simplify the main components for clarity.

Referring to Fig. 1, a sewing structure having no bobbin thread according to the first embodiment of the present invention is arranged to form various shapes of sweat on the sewing material n of the planar structure and the sewing material n. It is composed of the upper thread (t), the point that does not have a lower thread for fixing the upper thread (t) in the sewing process is the main difference from the conventional sewing structure.

In particular, the sewing structure according to the present invention, the upper thread (t) and the hook portion (t1) to form a sweat, the fixing portion is melted and fixed to the tissue of the sewing material (n) and formed below the ring portion (t1) ( t2).

Fixing portion (t2) is a portion that performs the function of supporting the ring portion (t1) is fixed to the tissue of the sewing material (n) to form a sweat, and the upper thread is a predetermined temperature for the formation of such a ring portion (t2) It consists of a linear member that melts when heated above.

For example, the upper thread (t) may be selected and applied without limitation as long as it is a fiber yarn having a property of melting during ultrasonic heating. Synthetic fiber yarns such as polyester and nylon are mostly subjected to ultrasonic fusion. Through the formation of the fixing part (t2) is possible through most can be applied.

In addition, the upper thread (t), in addition to the synthetic fiber yarn, may be applied to the monofilament yarn, etc. formed of a resin that is quickly melted and fixed when the heat is applied.

Here, the resin may be selected and applied to any one selected from a thermosetting polymer, a thermoplastic polymer, a mixture of a thermosetting polymer and a thermoplastic polymer. In this case, the thermosetting polymer may be selected and applied from polyether, polyester, polyimide, polysulfone, epoxy resin, unsaturated polyester resin, phenol resin, urethane resin, urea resin and melamine resin. The thermoplastic polymer may be selected and applied from polyamide, polyester, liquid crystal polymer, polyethylene, polypropylene, phenylene sulfide, and polystyrene.

Preferably, it is important to select thermosetting polymers and thermoplastic polymers having a low melting point, which in this embodiment is a thermoplastic polymer composed of a low melting point resin so that it can be melted at a temperature in the range of 100 ° C to 200 ° C. Apply the configuration.

On the other hand, the sewing material (n) can be selected and applied without limitation as long as it is possible to sew and have a planar structure, for example, foam foam pad, synthetic resin sheet, non-woven fabric and leather may be applied in this embodiment Representatively, the fabric is applied.

The sewing structure without the bobbin thread according to the first embodiment of the present invention as described above can form a sweat so that the bobbin thread can be provided as well as provide a unique aesthetics of the stitch, but also require a bobbin thread separately. As it is not structured, it is possible to continuously sew without changing the lower thread during sewing work, and it is possible to improve the productivity of sewing materials because it does not require any pre-working or replacement work that winds the lower thread in the drum, and it is manufactured by reducing labor cost. This has the advantage of reducing costs.

In addition, there is an effect that can fundamentally prevent problems such as the work is stopped while the lower thread is broken or twisted due to excessive tensile force, friction or interference in the sewing process.

2A to 2C are partially enlarged perspective views for explaining the upper thread applied to the sewing structure without the lower thread according to the first embodiment of the present invention.

Referring to Fig. 2A, the upper thread t is composed of a support line t3 forming sweat and a melting portion t4 formed of a material which is supplied with the support line t3 and can be melted by heat.

In addition, the support line t3 is composed of non-melting yarn t31 formed of a material which is not thermally melted, such as natural fibers such as cotton, wool or silk, prehistors including metal yarns, ceramics, and the like. Is composed of a laminated portion t41 laminated on a non-melting yarn t31 and formed of a hot melt material.

The laminate part t41 is formed by laminating a thermoplastic polymer, typically made of a low melting point resin, on the surface of a support line by coating or coating.

As shown in Figure 2a, the upper thread (t) is not formed of a material that can be melted in its entirety, but if the support line (t3) formed of non-melting yarn is disposed at the center, the heat generating module (6) from the sewing process will be described later. Even if heat is generated, only the melting part t4 is melted and the support line t4 remains unmelted to perform a supporting function, so that the upper thread t is broken, and the upper thread supply defect or sweat formation defect may be generated. A unique synergy can be prevented in advance.

Referring to FIG. 2B, the upper thread t is composed of a support line t3 forming sweat and a melting portion t4 formed of a material which is supplied with the support line t3 and can be melted by heat, and the support line t3. ) Is composed of a plurality of strands of non-heat-melting yarn t31 that is not hot melted, and the melted portion t4 is a molten yarn formed of a heat-melting material such as monofilament yarns that are fused to the non-melting yarn t31 and formed of resin ( t42). In this case, the molten yarn t42 is one having a denier (outer diameter) larger than that of the non-melting yarn t31 so that the fixing portion t2 can be easily formed.

The upper thread t shown in FIG. 2B also has a unique synergistic effect that can prevent the upper thread supply failure or the poor formation of sweat in advance by the support line t3 formed of the non-fused yarn t31, similarly to the upper thread shown in FIG. 2A. However, since the molten portion t4 is composed of the molten yarn t42, there is an advantage that the melt portion t4 can be simply manufactured in a manner of being spliced to the non-fused melt t31 through a plywood process in the manufacturing process of the fiber yarn. Accordingly, as illustrated in FIG. 2A, the manufacturing method of forming the laminated part t41 by applying the thermoplastic polymer to the surface of the support line t3 has an advantage of excellent manufacturability and reducing manufacturing cost.

Meanwhile, the upper thread t may be configured in various forms in addition to the shapes shown in FIGS. 2A and 2B as long as the upper thread t has a support line t3 and a melting part t4.

For example, as shown in FIG. 2C, both the support line t3 and the melting portion t4 are composed of a melt wire formed of a material that is thermally melted, and the melt wire t32 composed of the support line t3 has a temperature in the range of 200 ° C. The melting yarn t43, which is composed of a thermoplastic polymer composed of a high melting point resin to be melted at a high melting point resin, and is composed of a melting part t4, is attached to a melting wire t32 composed of a support line t3. Compared with the low melting point resin (low melting point resin) in the range of 100 ℃ to 180 ℃ low melting point resin is formed of the same material.

Hereinafter, a second embodiment according to the present invention will be described, but components similar to those shown in the above-described first embodiment will be omitted and detailed description will be given based on the components having differences. In addition, in the following second embodiment, any of the components shown in the first embodiment may be selectively applied as long as the structures can be employed.

Figure 3 is a perspective view showing a sewing structure without a lower thread according to a second embodiment of the present invention, an enlarged portion A1 is a cross-sectional view showing a simplified cross-sectional structure of a part of the sewing, the enlarged portion A2 is a portion of the functional wire The perspective view and the enlarged part A3 are perspective views which showed a part of upper thread.

Referring to Figure 3, the sewing structure having no lower thread according to the second embodiment of the present invention includes a sewing material (n), and the upper thread (t) disposed to form a sweat on the sewing material (n), The upper thread (t) is composed of a hook portion t1 that forms a sweat, and a fixing portion t2 that is melted and fixed to the tissue of the sewing material n and formed below the ring portion t1, and the sewing material ( A functional wire rod (p) disposed at n) and restrained by the ring portion t1 is further configured.

And the fixing | fixed part t2 is comprised by the pull-in fixing part which melted and formed in the state drawn into the inside of the sewing material n by the needle. This retractable fastening part is fixed in accordance with the integrally fixed together with the fiber structure of the sewing in the interior of the sewing (n), so that when the production of the sewing article that requires a large outer diameter of the functional wire (p) or a rigid fixing is required It is available.

The functional wire rod p is bound and fixed to the ring portion t1 formed by the upper thread t supplied from the functional wire rod supply device 7 as described in the sewing device below.

Functional wire (p) is a wire that performs special functions such as transmission of electric signals, light emission, and decorative effects, such as optical fiber yarns, sensor wires, EL lamp wires, photoluminescent wires, and decorative yarns with decorative beads embedded in shipping lines. Although various wires can be arranged without limitation in this concept, in the present embodiment, the current can be energized to perform the functions of the current supply line, the electric signal transmission line, and the heating line, so that the current is energized when placed on a planar body. The conductive wires for the conductive plane body or the heating plane body that performs the heat function for the representative application.

Here, the conductive wire includes a conductive yarn having conductivity so as to have flexibility and a soft touch similar to that of the fiber yarn, and a plurality of strands of fiber yarn disposed together with the conductive yarn. Preferably, the conductive line includes a center yarn p11 formed of fiber yarns in the inner center, a plurality of strands of conductive yarn p12 wound around the center yarn p11, and the outside of the conductive yarn, as shown in the enlarged portion A2 of FIG. The thing comprised by the structure which has the outer skin layer p13 formed by winding up several fiber yarn to this is applied.

The conductive yarn p12 may be selected and supplied from at least one of the carriers formed of the conductive material and the carriers including the conductive material.

Here, the fiber yarn forming the core yarn and the shell layer is selected from inorganic fiber yarn or organic fiber yarn according to the use of the functional wire (p) and the sewing material (n), and the preform formed of the conductive material is conductive such as copper, stainless steel, etc. Conductive metal yarns or carbon yarns formed of metal may be applied.

And, when the conductive metal yarn is selected, it is preferable to have a diameter in the range of 10 to 500 micrometers (µm). The reason for this is that foreign matters can be minimized in the state in which the total diameter of the conductive metal yarns including at least one strand and the conductive wires is less than or equal to 1000 micrometers (µm).

In addition, the prehistors containing the conductive material are coated with conductive polymers (conductive ink) on the outer surface of the linear body composed of a bundle of filament yarns, the prehistors attached with conductive materials such as metal oxide nanoparticles and graphene, and the spinning process of the fibers. In the conductive material (conductive metal nanoparticles, metal oxide particles, graphene, etc.) can be applied to the radiation to include.

4 is a cross-sectional view illustrating a modified example of a sewing structure having no bobbin thread according to a second embodiment of the present invention.

Referring to FIG. 4, the sewing structure having no bobbin according to the modification of the second embodiment of the present invention is melted and fixed to the sewing material (n), the loop part t1 forming sweat and the tissue of the sewing material, and the loop It consists of the upper thread (t) consisting of a fixing part (t2) formed on the lower side of the part (t1), and a functional wire (p) disposed on the sewing material (n) and constrained by the ring portion (t1), (t2) is comprised from the surface type fixing part formed in the surface of the sewing material n.

Since the surface-fixed portion is formed on the surface of the sewing material (n) as shown in Figure 4, although the binding strength of the functional wire (p) has a relatively low disadvantage, it is possible to reduce damage to the internal structure of the sewing material, such as electric devices When applied as a material in the manufacture of a sewing article that needs to partially separate the functional wire (p) for the connection of the advantage that can be easily performed to tear off a part of the functional wire.

Hereinafter, a sewing apparatus for a sewing structure having no lower thread according to the present invention.

5 is a perspective view showing a sewing device for a sewing structure without a bobbin according to a first embodiment of the present invention, wherein the enlarged portion is simplified and enlarged to show the indicated portion.

Referring to FIG. 5, the sewing device for the sewing structure without the lower thread according to the first embodiment of the present invention is an apparatus for sewing a sewing object with only the upper thread without the lower thread. , The thread supply unit 2, the needle 3, the needle drive unit 4, the ultrasonic wave generator 5, and the heat source generation module 6 and the needle drive unit 4 and the ultrasonic wave generator 5. A control unit (not shown) for controlling driving is provided.

The main body 1 may be configured without any particular limitation in structure or form as long as the above-mentioned main components can be built and exterior as a part constituting the skeleton, but in the present embodiment, the main body 1 is configured similarly to a general sewing basic body.

For example, the main body 1 has an arm portion formed to face the bed portion 11, the pillar portion 12, which is formed from the right end of the bed portion 11, and the upper end portion of the pillar portion 12, facing the bed portion 11. A frame 1a composed of 13, a spindle motor (not shown) installed inside the frame 1a, and a rotating shaft, a pulley, a belt, and the like for transmitting the driving force of the spindle motor to operate the needle drive unit. A delivery device (not shown) is provided.

Thread supply unit 2 is a component for supplying the upper thread (t) for sewing, the carrier 22, the carrier 22 is inserted and installed in the storage stand 21 installed in the arm portion 13, etc., the upper thread is wound, stored The tensioner 23 etc. which the thread withdraw | derives from is passed through are provided.

Needle 3 is a component for sewing the sewing process by sewing the upper thread (t) supplied from the thread supply unit 2 through the needle needle operation, according to the operation of the needle drive unit 4 to be described later While repeatedly performing the translational movement, a thread insertion hole 32 is formed in which the upper thread is sewn on the rod-shaped needle body as a part which substantially forms a sweat on the sewing material n.

And, the needle 3 may be formed as a general sewing needle formed with a thread insertion hole 32 in the rod-shaped needle body 31 as shown in the enlarged portion A1 of FIG. It may be formed in various shapes according to the shape, arrangement, etc. of the generation module (6).

The needle drive unit 4 is provided to the arm unit 13 so as to drive the needle bar 42 on which the needle 3 is installed up and down by power transmitted through a power transmission device (not shown) of the main body 1. As a built-in device, it is similar to the structure provided in the conventional sewing machine, so it will be omitted and omitted the detailed illustration or description.

The ultrasonic generator 5 (also referred to as an oscillator) is a component for generating ultrasonic waves, and converts an electrical signal having a commercial power voltage of AC 200 to 240 V (50 to 60 Hz) into an electrical signal of 15 to 50 kHz or more, and a vibrator 61 to be described later. The delivery key is a device.

On the other hand, the heat source generating module 6 converts the ultrasonic waves generated from the ultrasonic generator 5 into mechanical vibrations through the vibrator 61 and friction heat in the fusion space through the horn 63 connected via the booster 52. There is no particular limitation on the arrangement position and structure as long as it is possible to provide heat to form an fusion space at the needle needle part of the needle 3 by generating an ultrasonic bond to the upper thread (t) to the sewing material (n). In this embodiment, as shown in Figure 5 is disposed in the lower portion of the bed portion 11 corresponding to the sewing material receiving portion (part where the sewing material is seated) facing the needle.

The horn 63 is formed by a needle inlet groove 632 into which the lower end of the needle 3 descends in accordance with the operation of the needle drive unit 4 to enable continuous stitching operation without damaging or damaging the needle. have.

The vibrator 61 is a component that is applied to an ultrasonic welder or the like to generate vibration, and the booster 62 is a component that amplifies the vibration generated by the vibrator and transmits it to the horn, which is used in a conventional ultrasonic generator. Since the configuration is the same, similar to the detailed description of the detailed configuration and effect.

Reference numeral 15 in FIG. 5 is a pressing member for pressing the sewing material in the sewing process.

6A is a view for explaining a first modified example of the sewing device for the sewing structure without the bobbin according to the first embodiment of the present invention, and is a perspective view showing an enlarged lower portion of the needle.

Referring to Figure 6a, the sewing device for the sewing structure without the lower thread according to the first modification of the first embodiment of the present invention is the main body (1), thread supply portion (2), needle (3), needle drive device And a heat source generating module (6) having a horn (63) formed in the sewing portion (4), the ultrasonic generator (5), and a sewing seat facing the needle, and having a needle inlet groove (632), the needle ( 3) has a major feature in that the thread insertion hole 32 is shifted in the diagonal direction at the lower side of the needle body 31 to enable more stable sewing operation.

And, the thread insertion hole 32 is formed to be shifted in the diagonal direction, the inlet portion (d1) for the upper thread (t) is formed in a high position and the outlet portion (d2) for the upper thread is drawn out is formed in a low position It is important.

When the outlet portion d2 of the thread insertion hole 32 is formed at a low position as described above, the upper thread of the outlet portion d2 where the frictional heat generated from the horn 63 by the operation of the ultrasonic generator 5 is close to the horn ( Only t) is melted to form the fixing portion t2. And the upper thread portion located in the inlet portion (d1) of the thread insertion hole 32 located at a distance far from the horn 63 is not melted to prevent problems such as sticking to the thread insertion hole.

6b to 6h are views showing the second to eighth modifications of the sewing device for the sewing structure without the bobbin according to the first embodiment of the present invention. It is.

Referring to Figure 6b, the needle 3 is formed with the thread insertion hole 32 in the diagonal direction to be shifted in the lower side of the needle body 31 to exhibit the same effect as the first modification described above, the thread insertion hole Denoted at 32 is a groove 321 in which the inlet portion d1 on the inlet side of the upper thread t is recessed high and the outlet portion d2 on the outlet side is recessed low.

According to the second modification described above, since the inlet portion d1 of the upper thread t is recessed high and positioned at a distance from the horn 63, the molten portion t4 of the upper thread t to be drawn is not melted, It is possible to prevent problems such as sticking to the insertion hole, and at the same time, since the lower part of the thread insertion hole 32 has an open groove 321 structure, it is convenient to use without the inconvenience of having to insert the upper thread t into a narrow hole. There are advantages to it.

Referring to Figure 6c, the needle 3 is formed with the thread insertion hole 32 in a diagonal direction to be shifted in the lower side of the needle body 31 so as to exert an effect similar to the first modification described above, the needle body ( 31 has a cylindrical structure provided with a through hole 312 therein.

According to the third modification described above, since the needle body 31 has a cylindrical structure, the air supplied through the through hole 312 at the time of being lowered is fixed when the needle body 31 is lowered and raised after forming the fixing part t2 in the sewing process. There is an advantage that the effect of performing the function of cooling the portion (t2) quickly. And, while the circular pressing surface 313 of the lower end of the cylindrical needle body 31 is fused by interaction with the horn 63 while pressing the sewing material is formed with a circular fusion groove on the sewing material 2 There is an advantage that can be more firmly bonded when performing a sewing operation for joining more than one layer of sewing material.

Referring to Figure 6d, the needle (3) is formed so that the thread insertion hole 32 in a diagonal direction to the lower side of the needle body to exert the same effect as the first modification described above, round bar needle body 31 Fusion protrusions 314 are formed at the lower end of the structure to protrude. The step 315 is formed at the boundary between the fusion protrusion 314 and the needle body 31.

According to the fourth modification described above, when the needle 3 descends, the fusion protrusion 314 first enters the sewing material n to form the fixing portion t2, and subsequently the round bar needle body 31. While the stepped portion 315 of the portion is pressed by the interaction with the horn while pressing the sewing to form a circular fusion groove there is an advantage that can be bonded more firmly.

Referring to FIG. 6E, the needle 3 has a thread insertion hole 32 formed to be diagonally displaced to the needle body 31 having a cylindrical structure, and a needle that protrudes or indents at a lower end of the needle body 31. The uneven portion 316 is formed.

The horn 63 has a concave-convex concave portion 633 is formed to be recessed or projected to correspond to the needle concave-convex portion 316 to each other.

According to the fifth modification described above, since the needle concave-convex portion 316 is press-fitted deeply into the sewing material n when the needle descends, it is fused with the concave-convex portion 633 of the horn 63 to perform a fusion operation. There is an advantage in that the sewing can be bonded more firmly.

Referring to FIG. 6F, the needle 3 has a thread insertion hole 32 formed therein, and a plurality of needle insertion holes 32 are formed along the vertical direction of the needle body 31.

When the sewing operation is performed using the needle according to the sixth modification described above, the sewing material n is formed by two upper threads sewn into the thread insertion holes 32 arranged up and down when the needle 3 descends. Since the two fixing parts (t2) are formed up and down in the internal structure of the has the advantage that can be more firmly sewn.

Referring to Figure 6g, the needle (3) is formed of a cylindrical body having a hollow portion 317 of the needle body 31, the thread insertion hole through which the upper thread is sewn is not formed specifically through the hollow portion 317 It is configured to be pulled in.

The cylinder may be formed of a polygonal cylinder such as a square cylinder, but is formed of a cylindrical body in this embodiment, and the wedge portion 318 protrudes from the lower end thereof.

According to the seventh modification described above, the upper thread drawn through the hollow portion 317 at the time of the lowering of the needle 3 forms the fixing portion t2 by interaction with the horn 63 at the lower end of the cylinder. , Wedge portion 318 to form a fusion groove (not shown) by pressing the sewing material (h) of the portion where the fixing portion (t2) is formed in a cone.

At this time, if the cylinder forms a fixed portion and then rises, the air supplied through the hollow portion 317 at the time of falling performs a function of rapidly cooling the fixed portion t2.

On the other hand, the needle (3) as shown in Figure 6g may be configured with an injection device (not shown) for the supply of cooling air (air) to the hollow portion 317 or the injection of the adhesive resin. Here, the injection device is not shown in detail through the drawings, but forms a separate inlet hole (not shown) in the upper portion of the needle body 31, the air supply tube connected to the compressed air supply device (not shown) in the inlet hole It may be configured to bind to, or to bind the adhesive resin supply tube connected to the adhesive resin supply device (not shown).

Referring to FIG. 6H, the horn 63 is characterized in that the ultrasonic fusion process is performed only at the outlet of the upper thread even when the thread insertion hole 32 of the needle 3 penetrates and is formed in a horizontal direction.

The horn 63 has a high protrusion 634 protruding from one side of the needle inlet groove 632, and a low protrusion 635 protruding to a lower height than the high protrusion 634 on the other side of the needle inlet groove 632. Formed.

The needle 3 has a thread insertion hole 32 penetrating and formed in a horizontal direction, and a high protrusion 634 is positioned at the upper thread exit portion d2 of the thread insertion hole 32, and the upper thread of the thread insertion hole is formed. The low protrusion part 635 is provided in the inlet part d1 side.

According to the eighth modification described above, since the low protrusion 635 of the horn 63 is disposed to face the thread insertion hole 32 corresponding to the upper thread inlet portion d1 when the needle descends, the separation distance from each other. Since the upper thread is not melted because friction heat is not transmitted, and the high protrusion part 634 is disposed to face the upper thread outlet part d2 so that the upper thread t is melted and the fixing part t2 is melted. To form.

Thus, the upper thread portion located at the inlet portion of the thread inserting hole 32 is not melted, so that problems such as sticking to the thread inserting hole can be prevented in advance. Can be done.

Hereinafter, a sewing method without a bobbin thread according to the first embodiment of the present invention will be briefly described.

First, the sewing method without the lower thread according to the first embodiment of the present invention is to repeat the upper thread supplying step, fixing part forming step and the sweat forming step by using the sewing device shown in FIG. Through the sewing structure can be implemented without the lower thread shown in FIG.

The upper thread feeding step is to insert the upper thread (t) into the inside of the sewing material (n) by using the needle (3) or to supply to the surface of the sewing material, in the state that the upper thread in the thread insertion hole 32 of the needle When the needle 3 is lowered by the operation of the needle driving unit 4, the upper thread t is pulled to enter the sewing material.

The fixing part forming step is a step of forming a fixing part (t2) fixed to the sewing material after melting the upper thread (t) portion supplied to the sewing material (n), the needle enters into the sewing material and at the same time The ultrasonic wave generated by the operation of the ultrasonic generator 5 under the control of the ultrasonic wave unit 5 is converted into mechanical vibration through the vibrator 61 and generates frictional heat through the horn 63 to enter the upper thread portion into the sewing material. Melting is to form the fixing portion t2.

The sweat forming step is to form a ring-shaped ring part t1 after the execution of the fixing part forming step, and the needle 3 is raised by the operation of the needle driving device part 4 and at the same time as the sewing material is moved, the sweat is moved. It forms a ring portion t1 of a constant interval constituting.

The upper thread supplying step includes a support line t3 for forming a sweat as illustrated in FIGS. 2A to 2C, and a melting part t4 formed of a meltable material supplied with the support line t3. This is done by supplying the upper thread (t).

The fixing part forming step is performed by the heat generated from the heat source generating module while the needle 3 enters the inside of the sewing object by the operation of the needle driving unit 4 and the ultrasonic generator 5 is operated under the control of the controller. As the fusion space is formed by the frictional heat generated between the horn 63 and the end of the needle, the molten part t4 is melted and then flows down into the tissue of the sewing material, and at the same time, the operation of the ultrasonic generator stops. While hardening, the fixing part t2 is formed.

In addition, when using the needle 3 through which the thread insertion hole 32 penetrates in the horizontal direction as shown in FIG. 6H when the fixing portion forming step is performed, the horn 63 is one side of the needle retracting groove 632. The high protrusion 634 is projected on the other side is preferably implemented using the low protrusion 635 formed to protrude to a lower height than the high protrusion on the other side. At this time, the upper thread (t) is inserted through the thread insertion hole 32 of the needle (3), the outlet portion (d2) where the high protrusion 634 is located in the withdrawal direction and the inlet portion (635) where the low protrusion (635) is located ( This should be done by moving the upper thread with d1) in the entry direction.

Thus, since the high protrusion part 634 of the horn 63 is close to the exit part d2 of the thread insertion hole 32 corresponding to the upper thread extraction direction, when the needle 3 descend | falls, The frictional heat is generated only at the outlet portion, and the molten portion is melted to form the fixing portion t2. At this time, the thread insertion hole inlet portion (d1) corresponding to the upper thread inlet direction is arranged to face the low protrusion 635 of the horn, but even if the needle is lowered the distance away from the low protrusion 635 of the horn 63 is a long distance friction friction Since the upper thread t is not melted because the upper thread t is not melted, problems such as the resin constituting the molten portion sticking to the thread insertion hole 32 can be prevented in advance, so that the sewing operation can be smoothly performed.

On the other hand, Figure 7 is a view for explaining a sewing method not provided with a lower thread according to the first embodiment of the present invention, as shown therein needle (3) formed with a thread insertion hole 32 in a diagonal direction shifted In the case of using), the upper thread supplying step supplies the upper thread (t) through the upper hole of the thread inserting hole 32 and withdrawn into the lower hole.

When the outlet portion d2 of the thread insertion hole 32 is formed at a low position as described above, the frictional heat generated from the horn 63 by the operation of the ultrasonic generator 5 at the time of performing the fixing portion forming step is close to the horn. Only the upper thread t of the outlet part d2 is melted to form the fixing part t2, and the upper thread part located at the inlet part d1 of the thread insertion hole 32 located relatively far from the horn 63 is Since it is not melted, problems such as sticking to the thread insertion hole can be prevented, so that the subsequent sweat formation step can be stably performed without malfunction.

Hereinafter, another embodiment of a sewing apparatus and a sewing method for a sewing structure not provided with a bobbin according to the present invention will be described, and the components similar to those shown in the first embodiment and its modification will be described in detail. The descriptions will be omitted with respect to components having differences. In addition, in the following other embodiments, any of the components shown in the first embodiment and its modifications, or the components shown in other embodiments may be selectively applied to each other. Omit.

Figure 8 is a perspective view showing a sewing device for a sewing structure without a lower thread according to a second embodiment of the present invention, the enlarged portion is an enlarged view of the indicated portion.

Referring to Figure 8, the sewing device for the sewing structure without the lower thread according to the second embodiment of the present invention is the main body 1, the thread supply part 2 for supplying the upper thread (t) for sewing, from the thread supply part Needle (3) for sewing the sewing process using the upper thread supplied, the needle drive unit for operating the needle (4), the ultrasonic generator 5 for generating ultrasonic waves, and the ultrasonic waves generated from the ultrasonic generator It includes a heat source generating module (6) for ultrasonically bonding the upper thread to the sewing material, the heat source generating module (6) is not at the bottom of the sewing material mounting portion to the point disposed on the upper portion of the sewing material adjacent to the needle There are major features.

The heat source generating module 6 is provided with a vibrator 61, a booster 62, and a horn 63 as described in the sewing apparatus according to the first embodiment described above, the lower end of the needle during the vertical movement of the needle It is arranged up and down sequentially adjacent to the needle so that frictional heat is generated at the part of the sewing material to be introduced. In particular, since the horn 63 is a component that directly generates friction heat, the horn 63 should be disposed at a portion to be introduced into the sewing material n at the downstroke of the needle.

And, the horn 63 is formed in the horn body 631, the horn body 631 and the horn body 631 is formed integrally to perform the role of pressing the sewing in the sewing process, the pressing member commonly referred to as a presser foot in the sewing machine, etc. 635 is provided. At this time, the pressing member 635 is formed in a substantially 'c' shape is provided with a needle inlet groove 632 in which a needle is inserted in the center.

The sewing device for the sewing structure without the lower thread according to the second embodiment of the present invention described above, the heat source generating module 6 is arranged on the upper part of the sewing material close to the needle 3, so that the bed portion which is the sewing seat As in (11), there is no need to provide components such as a drum and a north drive device or a heat source generating module 6 as in the prior art, and only a hole into which a needle is inserted is formed so that the structure is very simple and simple. Since interference does not occur at the time, the workability is improved.

9 is a perspective view showing a sewing device for a sewing structure without a bobbin according to a third embodiment of the present invention, wherein the enlarged portion enlarges the indicated portion.

9, a sewing apparatus for a sewing structure having no lower thread according to a third embodiment of the present invention is a main body 1, a thread supply part 2 for supplying the upper thread t for sewing, from a thread supply part. Needle (3) for sewing the sewing process using the upper thread supplied, the needle drive unit for operating the needle (4), the ultrasonic generator 5 for generating ultrasonic waves, and the ultrasonic waves generated from the ultrasonic generator Including the heat source generating module 6 for ultrasonically bonding the upper thread to the sewing material, there is a major feature in that the needle (3) is integrally configured in the heat source generating module (6).

More specifically, the heat source generating module 6 is a vibrator 61, the booster 62 and the horn 62 are sequentially disposed from the top to the bottom, the needle 3 is formed in the lower portion of the horn 63 The needle itself is composed of part of the horn 63.

The sewing device for the sewing structure without the lower thread according to the third embodiment of the present invention described above can be simplified and simplified as the needle 3 is integrally formed in the heat source generating module 6. And since the needle itself is composed of a part of the horn can be effectively generated friction heat locally on the needle site when the needle descends close to the bed, there is an advantage that the sewing operation can be performed stably.

FIG. 10 is a view for explaining a first modified example of the sewing device for the sewing structure without the bobbin according to the third embodiment of the present invention, and is a perspective view showing only a heat source generating module part. FIG.

Referring to FIG. 10, the sewing device for the sewing structure without the lower thread according to the first modification of the third embodiment of the present invention includes a main body 1, a thread supply part 2, a needle 3, and a needle driving device. The heat source generating module 6 is provided with the unit 4, the ultrasonic wave generating unit 5, and the needle 3 integrally, and the needle 3 is detachably coupled to the horn 63 and close to the needle. The pressing member 15 for pressing the sewing material is provided.

More specifically, the heat source generating module 6 is the vibrator 61, the booster 62 and the horn 63 are disposed in order from the top to the bottom, the horn 63 is formed in the form of a coupling plate, The needle 3 is detachably coupled to the horn in the form of a coupling plate.

In addition, the horn 63 is composed of a plurality of needles 3 so as to form two or more rows of sweat at a time when the sewing operation is performed.

11 is a view for explaining a sewing device for a sewing structure not provided with a lower thread according to a fourth embodiment of the present invention. It is shown enlarged.

Referring to FIG. 11, a sewing apparatus for a sewing structure having no lower thread according to a fourth embodiment of the present invention includes a main frame 1 ', a thread supply part 2', a needle 3 ', and a needle driving device. Part 4 ', ultrasonic generator 5, heat source generating module 6, and functional wire supply device 7 is provided, the thread supply part 2', the needle 3 ', and the needle drive device The unit 4 'is mounted on the head frame 44 to be installed on the main frame 1', and the functional wire resupply device 7 is installed on the main frame 1 'in contact with the head frame 44. The generating unit 5 and the heat source generating module 6 are disposed at the lower portion of the sewing seat 11 'facing the head frame 44.

The thread supply part 2 'is a component for supplying the upper thread t for sewing to the needle 3', and is a device for drawing the upper thread wound inside the head frame 44 and wound around the bobbin and supplying it to the needle. , Since it can be configured similarly to the known upper thread feeder that is applied in a sewing device such as an embroidery machine, a detailed description thereof will be omitted.

The needle 3 'is a component that performs a sewing process on the sewing material n using the upper thread t supplied from the thread supply part 2', and has a structure in which a thread insertion hole is perforated at the bottom of the rod-shaped body. It is.

The needle drive unit 4 is a component for operating the needle, and the needle is needled by translating the needle bar 42 up and down by a driving force of a driving motor (not shown) as shown in an enlarged portion of FIG. Since it is possible to apply the operating mechanism applied to a conventional embroidery machine to perform a detailed description will be omitted. For example, the needle drive unit may typically apply a method applied to the sewing head of a Chenille embroidery machine (aka, round bar embroidery sewing machine).

 In addition, the needle bar 42 is accommodated in the guide nipple 43 and is driven up and down, and a needle 3 on which the upper thread is sewn is installed at the lower end of the needle bar 42, and is rotatable in contact with the needle bar. While the 44 is assembled, the wire rod supplying portion 73 in the form of a nozzle, which will be described later, is connected via the bracket 45 provided on the rotating body 44.

The ultrasonic generator 5 is a component for generating ultrasonic waves, and the heat source generating module 6 converts ultrasonic waves generated from the ultrasonic generator into mechanical vibrations through the vibrator 61 and generates frictional heat through the horn 63. The upper thread t is ultrasonically bonded to the sewing material, and is configured similarly to the sewing apparatus according to the first embodiment described above.

Here, the horn 63 is disposed in the sewing seat 11 'facing the needle 3, as shown in the enlarged portion of Figure 11, the needle retracting groove into which the needle (3) is inserted in the sewing process ( 632 is formed.

Functional wire supply device (7) is a component for supplying a functional wire rod (p) that is bound to the hook portion t1 of the sweat formed by the upper thread (t) in the sewing process, while sewing a certain amount of functional wire rod If the device can be easily supplied to the water seating portion (11 '), there is no special proposal in the structure, but in the present embodiment, the wire rod storage portion 71 for storing the functional wire rod (p), which is stored in the wire rod storage portion 71 The wire transfer part 72 which pulls the functional wire rod and supplies it toward the sewing material, and the wire rod supply portion 73 through which the functional wire rod p transferred by the wire transfer unit 72 is discharged.

More specifically, the wire storage unit 71 is composed of a bobbin that is wound around the functional wire rod, the wire transfer unit 72 is composed of a pair of wire transfer roller rotated by a wire transfer motor (not shown) and functional The wire rod is sandwiched and drawn out, and the wire rod supply unit 73 is configured of a guide nozzle for guiding the movement of the functional wire rod to supply the surface of the sewing material. Here, the guide nozzle is formed in the shape of a pin formed with a passage through which the functional wire (p) is moved.

On the other hand, the sewing device for the sewing structure having no lower thread according to the fourth embodiment of the present invention is the sewing material moving device for moving the sewing material (n) is placed on the sewing material seating portion (11) Is further configured.

The sewing material movement device 8 performs a function of moving the sewing material n so that the functional wires p supplied and sewn to the surface of the sewing material by moving in the X-axis direction and the Y-axis direction have a specific pattern. The clamping member 81 which clamps the sewing material n, and the actuator 82, such as a pneumatic cylinder which moves this clamping member 81, are comprised.

In addition, the sewing material moving device 8 controls the actuator 82 according to the data input by the input unit (not shown) to move the sewing material so that the functional wire can be supplied in a fixed position at a desired position. It can be arranged, it is usually composed of a frame (not shown) applied to a textile machine of the embroidery machine type, such as a computer embroidery machine, a computer quilting machine and a frame moving means (not shown) to move the frame It can also be configured.

12 is a view for explaining a sewing device for a sewing structure without a bobbin according to a fifth embodiment of the present invention, a schematic diagram schematically showing the main components for clarity, and an enlarged portion enlarges the indicated portion. It is shown.

12, the sewing device for the sewing structure without the lower thread according to the fifth embodiment of the present invention is a thread supply portion 2 ', needle 3', needle drive unit 4 ', ultrasonic Generator (5), the heat source generating module (6), and the functional wire supply device (7) is provided, the needle (3) in the state that is located in the seat mounting portion (11 ') without moving the sewing (n) And a moving device 91 for moving the functional wire rod 8 and placing the functional wire in a desired path.

The moving device 91 includes a thread supply unit 2 ', a needle 3', a needle drive unit 4 ', an ultrasonic wave generator 5, a heat source generating module 6, and a functional wire feeder 7 Is provided to move along the placement path of the functional wire (p), if the moving device that can be moved in the X-axis direction, Y-axis direction and Z-axis direction can be configured in various ways without particular limitation in structure or form. For example, the moving device 9 may be constituted by an articulated transfer robot 912 configured to move the moving body 911 in the X-axis direction, the Y-axis direction, and the Z-axis direction as shown in FIG.

The thread supply part 2 ', the needle 3', and the needle drive unit 4 'are installed on the moving body 911 in a state in which the thread supply part 2', the needle driving device 4 ', is mounted on the head frame 44, and the head frame 44 is provided. The functional wire rod feeding device 7 is installed on the moving body 911 which is in contact with the moving body, while the heat source generating module 6 has a sewing material adjacent to the needle to perform sewing work during the lifting movement of the needle 3 '. It is arrange | positioned at the upper part of the part 11 '.

The heat source generating module 6 is configured such that the horn 63 is disposed in close proximity to the needle 3 'so that friction heat can be generated, but may be configured without particular limitation in structure or form, but is shown in the enlarged portion of FIG. As shown, the horn is provided with a horn body 636 and a pressing member 637 which is integrally formed with the horn body 636 and serves to press the sewing material during the sewing process. At this time, the pressing member 637 is formed in a substantially 'C' shape is provided with a needle inlet groove 636a in which a needle is inserted in the center.

FIG. 13 is a view for explaining a first modified example of the sewing device for the sewing structure without the bobbin according to the fifth embodiment of the present invention. FIG.

Referring to Figure 13, the sewing device for the sewing structure without the lower thread according to the first modification of the fifth embodiment of the present invention is a thread supply portion (2 '), needle (3'), needle drive unit 4 '), The ultrasonic generator (5), the heat source generating module (6), and the functional wire rod supply device (7), the sewing material moving device (8), and the moving device (91) are provided, rolled sewing In order to be able to continuously sew water, the sewing material conveying unit 92 is further configured to apply a transfer force to continuously supply the sewing material placed on the sewing material seating portion (11 ').

And, the sewing material conveying unit 92 is configured to move the sewing material (n) linearly as long as the sewing material is wound up and down in the feed path of the sewing material supply roll 921, the sewing material (n) A sewing material feed roller 922 composed of a pair of rollers and a sewing material winding roll 923 rotated by a drive motor to apply a pulling force to the sewing material. Here, the sewing material conveying unit 92 may be configured in such a manner as to arrange only one of the sewing material conveying roller 922 and the sewing material winding roll 923 according to the conditions such as the size, thickness, type of the planar body. have.

Hereinafter, a sewing method without a bobbin thread according to the second embodiment of the present invention will be briefly described.

The sewing method without the lower thread according to the second embodiment of the present invention is a method for manufacturing a sewing structure without the lower thread shown in FIG. 3, and repeats the upper thread supplying step, the fixing part forming step, and the sweat forming step. At the same time as shown in Figures 11 to 13 to further implement a functional wire supply step for supplying the functional wire rod (p) constrained in the interior of the ring portion (t1) during the execution of the fixing portion forming step and the sweat forming step It can be carried out by using a sewing device for a sewing structure that is not provided with a bobbin thread.

At this time, the upper thread supplying step, the fixing part forming step and the sweat forming step is carried out simultaneously with the implementation of the functional wire feeding step so that the functional wire (p) is restrained inside the ring portion (t1).

And, the upper thread supplying step, the fixing part forming step and the sweat forming step is to be carried out in the same manner as described in the sewing method according to the first embodiment described above, similar to the details described above, and the detailed description of the functional wire supply step Explain only.

In the functional wire supply step, as shown in FIG. 11, the functional wire rod p stored in the wire storage unit 71 is pulled out by the wire transfer unit 72 and drawn out through the wire supply unit 73. It consists of a wire rod supplying process to be supplied toward the wire, and a wire rod arranging process of arranging the functional wires p supplied in this way on the surface of the sewing material n in a predetermined path. Here, the wire placement process is carried out by the method of moving the sewing material using the sewing material moving device (8) in a fixed state of the pull out position of the functional wire. More specifically, when the sewing material is clamped by the clamping member 81 under the control of the control unit and the actuator 82 is moved to move the sewing material, the functional wire is a fixed path even if the supply point of the functional wire is fixed. To be placed.

And in the process of disposing the functional wire (p) to the surface of the sewing material (n) to have a path set through the functional wire supply step as described above, the above-mentioned upper thread supply step, fixing part forming step and sweat forming step, When implemented, the functional wire (p) is bound to the sewing (n) while bound by the ring portion (t1).

On the other hand, in the case of using the sewing device as shown in Figure 12, by using the moving device 91 to move the needle (3 ') and the functional wire rod supply device 7 in the X-axis direction, Y-axis direction and Z-axis direction Therefore, even if the sewing material is not moved, the drawing position of the functional wire (p) can be arranged while moving to a desired position, so that the wire feeding process and the wire placing process can be more freely performed.

Then, when the functional wire supply step, the upper thread supply step, the fixing part forming step and the sweat forming step by using the sewing device as shown in Figure 13, wound in a roll form by the sewing material transfer unit 92 Since the sewing material can be continuously supplied, it is possible to carry out the sewing work effectively through the flow work, and thus there is an advantage in that mass production is possible.

What has been described above is only one embodiment for carrying out a sewing structure, a sewing method and a sewing apparatus therefor without a bobbin according to the present invention, the present invention is not limited to the above embodiment, the following patents As claimed in the claims, any one of ordinary skill in the art without departing from the gist of the present invention will have the technical idea of the present invention to the extent that various modifications can be made.

The terminology used in the above embodiments is only used to describe specific embodiments and is not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Claims (34)

Thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And Is disposed on the needle portion of the needle, and converts the ultrasonic wave generated from the ultrasonic generator into a mechanical vibration through a vibrator and generates a heat of friction through the horn through the horn to include a heat source generating module for ultrasonic bonding the upper thread to the sewing material Sewing device for a sewing structure having no lower thread, characterized in that. Thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And It is disposed on the needle portion of the needle, and converts the ultrasonic wave generated from the ultrasonic generator into a mechanical vibration through a vibrator and generates a heat of friction through the horn through the horn includes a heat source generating module for ultrasonic bonding the upper thread to the sewing material; , The heat source generating module is sewing device for a sewing structure having no lower thread, characterized in that the needle insertion groove is formed in the sewing seat facing the needle and the horn formed. The method of claim 2, The needle is formed with a needle uneven portion protruding or indented at the bottom of the needle body, The horn is a sewing device, characterized in that the concave-convex concavity concave or protruding to be formed to correspond to the needle concave-convex portion. Thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And It is disposed on the needle portion of the needle, and converts the ultrasonic wave generated from the ultrasonic generator into a mechanical vibration through a vibrator and generates a heat of friction through the horn through the horn includes a heat source generating module for ultrasonic bonding the upper thread to the sewing material; , The heat source generating module is sewing device for a sewing structure having no lower thread, characterized in that arranged on top of the sewing material seating portion adjacent to the needle and configured to perform a pressing action of the sewing material. Thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; And And a heat source generating module for converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator and generating frictional heat in the fusion space through the horn for ultrasonic bonding of the upper thread to the sewing material. Sewing device for a sewing structure having no lower thread, characterized in that the heat source generating module is configured in the needle portion. The method of claim 5, The needle is coupled to the horn, sewing device for a sewing structure having no lower thread, characterized in that consisting of a part of the horn. The method of claim 6, Sewing needle for a sewing structure having no lower thread characterized in that the needle is composed of a plurality. Thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; A heat source generating module for converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator and generating frictional heat in the fusion space through the horn for ultrasonic bonding of the upper thread to the sewing material; And Sewing device for a sewing structure having no bobbin thread characterized in that it comprises a functional wire supply device for supplying a functional wire bound to the hook portion of the sweat formed by the upper thread in the sewing process. The method of claim 8, The heat source generating module is configured to have a structure in which a needle inlet groove is formed in the sewing seat portion facing the needle and the horn is formed. Sewing device for a sewing structure having no lower thread characterized in that it comprises a sewing material moving device for moving the sewing material disposed in the sewing material seating portion. Thread supply unit for supplying the upper thread for sewing; A needle for sewing the sewing material by using the upper thread supplied from the thread supply part; A needle driving unit for operating the needle; An ultrasonic generator for generating ultrasonic waves; A heat source generating module for converting the ultrasonic waves generated from the ultrasonic generator into mechanical vibration through a vibrator and generating frictional heat in the fusion space through the horn for ultrasonic bonding of the upper thread to the sewing material; Functional wire supply device for supplying the functional wire is bound to the hook portion of the sweat formed by the upper thread in the sewing process; And Sewing device for a sewing structure having no lower thread, characterized in that it comprises a moving device for moving the needle and the functional wire supply device to place the functional wire in the desired path. The method of claim 10, The heat source generating module sewing apparatus for a sewing structure having no lower thread, characterized in that disposed on the upper portion of the sewing seat adjacent to the needle. The method according to claim 4 or 11, wherein The horn is composed of a pressing member formed with a needle inlet groove, a horn body formed integrally with the gambling member, a booster is coupled to the horn body, and the oscillator is coupled to the booster. Sewing devices for unsealed sewing structures. The method according to claim 8 or 9, Sewing device for a sewing structure having no lower thread characterized in that it comprises a sewing material transfer unit for applying a transfer force to move the sewing material mounted on the sewing material seat. The method according to any one of claims 8 to 11, The functional wire supply device is a wire rod storage unit for storing the functional wire rod, a wire transfer unit for pulling the functional wire rods stored in the wire storage unit to supply to the sewing material, and a wire rod discharged from the functional wire rod transported by the wire transfer unit Sewing device for a sewing structure having no lower thread comprising a portion. The method according to any one of claims 1 to 11, The needle is a thread insertion hole is formed, the sewing device for a sewing structure having no lower thread, characterized in that the thread insertion hole is shifted in a diagonal direction. The method of claim 15, The thread insertion hole is a sewing device, characterized in that the inlet portion of the upper thread is recessed high, the outlet portion is formed of a recess recessed low. The method of claim 15, The needle sewing device for a sewing structure having no lower thread, characterized in that the structure consisting of a cylindrical structure, or a structure in which a fusion protrusion protrudes at the bottom of the round bar-shaped body. The method according to any one of claims 1 to 11, The needle is a thread insertion hole is formed, the sewing device, characterized in that the plurality of thread insertion hole is formed along the vertical direction of the needle body. The method according to any one of claims 2, 4 and 9, The horn has a structure in which a high protrusion protrudes on one side of the needle inlet groove, and a low protrusion protrudes at a lower height than the high protrusion on the other side of the needle inlet groove. The needle is formed with a thread insertion hole, the high protrusion is located in the upper thread outlet side of the thread insertion hole, the lower protrusion is installed so that the low protrusion is positioned on the upper thread inlet side of the thread insertion hole Sewing device for rescue. The method according to any one of claims 1 to 11, The needle is sewing device for a sewing structure having no lower thread, characterized in that formed of a cylindrical body having a hollow portion for the introduction of the upper thread. The method of claim 20, Sewing device for a sewing structure having no lower thread characterized in that the wedge portion protrudes on the lower end of the cylinder. The method of claim 20, Sewing device for a sewing structure having no lower thread characterized in that the injection device for injection of cooling air or adhesive resin to the hollow portion of the needle is configured. In the sewing structure, Sewing materials; And Including the upper thread is arranged to form a sweat on the sewing, The upper thread is sewn without a bobbin thread characterized in that it comprises a loop portion for forming the sweat, and a fixing portion which is melted and fixed to the tissue of the sewing material and formed on the lower side of the loop portion. In the sewing structure, Sewing materials; And Including the upper thread is arranged to form a sweat on the sewing, The upper thread has a ring portion forming the sweat, and a fixing portion that is melted and fixed to the tissue of the sewing material and is formed below the ring portion, The sewing structure is not provided with a lower thread, characterized in that it comprises a functional wire which is disposed on the sewing material and bound by the ring portion. The method of claim 23 or 24, The upper thread is sewn without a bobbin thread characterized in that it comprises a support line for forming the sweat, and a melt portion formed of a material which is supplied with the support line and can be melted by heat. The method of claim 25, The support line is formed of a non-melting yarn that is not hot melt, The melt portion is sewn without a bobbin thread, characterized in that consisting of a melted yarn fused to the non-melting yarn and formed of a hot melt material laminated or laminated to the non-melted yarn and formed of a hot melt material. The method of claim 25, The support line and the molten portion are all composed of a melt wire formed of a material that is thermally melted, but the melt wire composed of the support line is not provided with a bobbin thread, wherein the melting point is formed of a material having a higher melting point than that of the melt wire composed of the melt portion. Sewing structure. The method of claim 23 or 24, The fastening part is sewn structure not provided with a bobbin thread, characterized in that consisting of the surface-type fastening portion formed on the surface of the pull-in type fastening portion or the sewing material is formed into the inside of the sewing material. In the sewing method without a bobbin thread, An upper thread feeding step of feeding the upper thread into the sewing material using the needle or supplying the upper thread to the surface of the sewing material; A fixing part forming step of forming a fixing part fixed to the sewing material after melting the upper thread part supplied as the sewing material; And Sewing method without a lower thread characterized in that it comprises a sweat forming step of forming a ring-shaped ring portion after the execution of the fixing portion forming step. In the sewing method without a bobbin thread, A functional wire supply step of supplying a functional wire rod; An upper thread feeding step of introducing the upper thread into the sewing material using the needle or supplying the upper thread to the surface of the sewing material; A fixing part forming step of forming a fixing part fixed to the sewing material after melting the upper thread part supplied as the sewing material; And It includes a sweat forming step of forming a ring-shaped ring portion after the execution of the fixing portion forming step, The upper thread supplying step, the fixing portion forming step and the sweat forming step is not provided with a lower thread, characterized in that carried out simultaneously with the execution of the functional wire supply step so that the functional wire is restrained inside the ring portion. The method of claim 29 or 30, The upper thread supply step is performed by supplying the upper thread having a support line for forming a sweat, and a melted portion formed with a meltable material supplied with the support line, The fixing portion forming step is not provided with a lower thread, characterized in that carried out through the ultrasonic welding process for melting the melted portion to form the fixed portion. The method of claim 29 or 30, The fixing part forming step is performed by using a heat generating module for ultrasonically joining the upper thread to the sewing material by converting the ultrasonic wave generated from the ultrasonic generator into mechanical vibration through the vibrator and generating frictional heat through the horn. Using the thread insertion hole is formed to be shifted in the direction, the upper thread is introduced into the upper hole of the thread insertion hole to be drawn out to the lower hole while repeating the weft feeding step, the fixing part forming step, and the sweat forming step, Sewing method without a lower thread characterized in that the implementation. The method of claim 29 or 30, The fixing part forming step is performed by using a heat generating module for ultrasonically bonding the upper thread to the sewing material by converting the ultrasonic wave generated from the ultrasonic generator into mechanical vibration through the vibrator and generating frictional heat through the horn. A high protrusion protrudes on one side of the inlet groove and a low protrusion protruding to a lower height than the high protrusion on the other side is used, and the upper thread is inserted and drawn out through the thread insertion hole of the needle, but the high protrusion is located. The sewing method without a lower thread, characterized in that the inlet and the lower projection is located in the exit portion. The method of claim 30, The functional wire supply step includes a wire rod supply process for supplying the functional wire rod to the surface of the sewing material, and a wire rod placement process for disposing the supplied functional wire rod in a predetermined path, The wire placement process is not provided with a lower thread characterized in that it is carried out by a method of moving the sewing material in a state in which the withdrawal position of the functional wire is fixed to a specific position, or by a method of moving the withdrawal position of the functional wire. Not sewing method.

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