TWI872731B - Wire tension control mechanism, winding system using the same, and wire tension control method - Google Patents

Abstract

A wire tension control mechanism includes a wire feeding device, a connecting device and a wire guiding device. The connecting device includes a fixing component and a rotor. The fixing component is connected to the wire feeding device. The rotor is movably disposed relative to the fixed component. The wire guiding device is connected to the rotor.

Description

Wire tension control mechanism, wire winding system using the same, and wire tension control method

The present invention relates to a wire tension control mechanism, a wire winding system using the same, and a wire tension control method.

The existing winding system of the winding process can provide wires to a carrier so that the wires are wound or woven on the carrier. During the winding process, if the tension of the wires is unstable, the wires wound on the carrier will have coating defects, such as wire slippage, splitting or twisting. Therefore, proposing a technology that can improve the above-mentioned known problems is one of the goals of the industry in this field.

The purpose of the present invention is to propose a wire tension control mechanism, a winding system and a wire tension control method using the same, which can improve the above-mentioned known problems.

An embodiment of the present invention provides a wire tension control mechanism. The wire tension control mechanism includes a wire feeding device, a connecting device and a wire guiding device. The connecting device includes a fixing member and a rotor. The fixing member is connected to the wire feeding device. The rotor is movably arranged relative to the fixing member. The wire guiding device is connected to the rotor.

Another embodiment of the present invention provides a winding system. The winding system includes a wire tension control mechanism and a driving mechanism. The wire tension control mechanism includes a wire feeding device, a connecting device and a wire guiding device. The connecting device includes a fixing member and a rotor. The fixing member is connected to the wire feeding device. The rotor is movably arranged relative to the fixing member. The wire guiding device is connected to the rotor. The driving mechanism is connected to the wire tension control mechanism and is used to drive a wire passing through the wire tension control mechanism to cover a carrier.

Another embodiment of the present invention provides a wire tension control method. The wire tension control method includes the following steps: providing a wire tension control mechanism, wherein the wire tension control mechanism includes a wire feeding device, a connecting device and a wire guiding device. The connecting device includes a fixing member and a rotor. The fixing member is connected to the wire feeding device. The rotor is movably configured relative to the fixing member. The wire guiding device is connected to the rotor; and the wire tension control mechanism provides a resistance to the wire based on the pulling of a wire.

In order to better understand the above and other aspects of the present invention, the following is a specific example and a detailed description with the attached drawings as follows:

1: Winding system

10: Driving mechanism

11: Connectors

12: Base

100,200,300,400,500,600,700: Wire tension control mechanism

110: Line supply device

111: flange

111a,131a,1132a: Perforation

112: Connecting shaft

113: Carrier

1131: Base

1132: Stopper

114,132: Scroll wheel

1141,1321:Connecting shaft

1142,1322:Wheels

120,220,320,420,520,620,720:Connection device

121,221:Fixes

121t,122t: screw hole

122,222: Rotor

122a: Perforation

1221: First connection part

1222: Second connection part

1223,2223: flange

1223P: protrusion

123: First bearing

124: Second bearing

130: Wire guide device

131: Wire guide

1311: Set-up Department

1312: Base

132’: Roller

2211:Entity

2212: Covering

225,525,625:Drive module

2251,5251,6251:Driver

2251c,5251c,6251c: axis

2252: Gear

325,425: elastic device

3251: First end

3252: Second end

3253: Elasticity

526: Controller

640: Strain gauge

T _C1 : Stable tension value

T _d : measured tension value

C1: Carrier

S1: Control signal

x,y,z:axis

W1: Wire

θ ₀ ,θ _{+ MAX} ,θ _{- MAX} : Angle

AX1: Axial

Figures 1A and 1B show schematic diagrams of a winding system 1 according to an embodiment of the present invention at different viewing angles.

FIG. 2A is a schematic diagram of the wire tension control mechanism 100 of the winding system 1 of FIG. 1.

Figures 2B and 2C show schematic diagrams of the wire tension control mechanism 100 in Figure 2A at different viewing angles.

FIG. 2D shows a cross-sectional view of the wire tension control mechanism 100 of FIG. 2A along the direction 2D-2D’.

FIG. 3 shows an exploded view of the wire tension control mechanism 100 of FIG. 2A.

FIG. 4 is a schematic diagram showing the force applied to the wire W1 passing through the wire tension control mechanism 100 in FIG. 2A.

Figure 5A shows a schematic diagram of a wire tension control mechanism 200 according to another embodiment of the present invention.

FIG. 5B shows a side view of the wire tension control mechanism 200 of FIG. 5A.

FIG. 5C shows a cross-sectional view of the wire tension control mechanism 200 of FIG. 5A along direction 5C-5C’.

FIG. 6 shows an exploded view of the wire tension control mechanism 100 of FIG. 5A.

FIG. 7 is a schematic diagram of a wire tension control mechanism 300 according to another embodiment of the present invention.

FIG. 8 shows an exploded view of the wire tension control mechanism 300 in FIG. 7.

Figure 9 shows an exploded view of a wire tension control mechanism 400 according to another embodiment of the present invention

FIG. 10A is a schematic diagram of a wire tension control mechanism 500 according to another embodiment of the present invention.

FIG. 10B shows a cross-sectional view of the wire tension control mechanism 500 of FIG. 10A along the direction 10B-10B’.

FIG. 11 shows an exploded view of the wire tension control mechanism 500 of FIG. 10A.

FIG. 12A is a schematic diagram of a wire tension control mechanism 600 according to another embodiment of the present invention.

FIG. 12B shows an exploded view of the wire tension control mechanism 600 of FIG. 12A.

FIG. 13A is a schematic diagram of a wire tension control mechanism 700 according to another embodiment of the present invention.

FIG. 13B shows an exploded view of the wire tension control mechanism 700 of FIG. 13A.

Passive swing method - using own weight

Please refer to Figures 1A to 4. Figures 1A and 1B show schematic diagrams of the winding system 1 according to an embodiment of the present invention at different viewing angles. Figure 2A shows a schematic diagram of the wire tension control mechanism 100 of the winding system 1 of Figure 1. Figures 2B and 2C show schematic diagrams of the wire tension control mechanism 100 of Figure 2A at different viewing angles. Figure 2D shows a cross-sectional view of the wire tension control mechanism 100 of Figure 2C along the direction 2D-2D'. Figure 3 shows an exploded view of the wire tension control mechanism 100 of Figure 2A. Figure 4 shows a schematic diagram of the force applied to the wire W1 passing through the wire tension control mechanism 100 of Figure 2A.

As shown in Figures 1A-1B, the winding system 1 includes a driving mechanism 10 and a wire tension control mechanism 100. The driving mechanism 10 is connected to the wire tension control mechanism 100 and is used to drive the wire W1 passing through the wire tension control mechanism 100 to wrap a carrier C1. The winding system 1 can be applied to various processes that require winding or braiding the wire W1 on the carrier C1, such as the motor winding process, the yarn bundle unwinding process, and the winding process.

As shown in Figures 1A and 1B, in this embodiment, the driving mechanism 10 is, for example, a robot arm, but may also be other mechanisms capable of driving the wire tension control mechanism 100. The robot arm, for example, has six degrees of freedom, such as translation along the x, y, and z axes and rotation around the x, y, and z axes. The driving mechanism 10 includes a connecting member 11 that can rotate around the z axis. The connecting member 11 may also be referred to as a flange. The wire tension control mechanism 100 may be disposed on (or fixed to) the connecting member 11 to rotate around the z axis along with the connecting member 11.

In terms of product categories, carrier C1 is, for example, a component of a transportation device (such as an airplane frame, a vehicle frame, a bicycle frame, etc.), a component of sports equipment (such as a badminton racket, a hockey handle, a rafting oar, etc.), a component of a consumer product (such as a liquefied petroleum gas cylinder, a hydrogen cylinder, an oxygen cylinder, and a high-pressure pipe), and other products that require high strength (but not limited to). Wire W1 is, for example, a metal wire, such as any metal element or composite material on the periodic table, such as carbon fiber, glass fiber, and other lightweight and high-strength wires; or, wire W1 can be various wires used in the textile industry, such as yarn, cotton thread, etc. In one embodiment, after the wire coating operation of carrier C1 is completed, carrier C1 coated with wire W1 can be cured and formed. The wire W1 is composed of a wire body (reinforcement material) and a resin (base material). After the wire W1 is coated on the carrier C1, the resin can be cured by high-temperature baking to form a high-stress resistant composite material.

As shown in FIGS. 2A to 2D and FIG. 3 , the wire tension control mechanism 100 includes a wire feeding device 110, a connecting device 120, and a wire guiding device 130. As shown in FIG. 2D , the connecting device 120 includes a fixing member 121 and a rotor 122. The fixing member 121 is connected to the wire feeding device 110. The rotor 122 is movably arranged relative to the fixing member 121. The wire guiding device 130 is connected to the rotor 122. In this way, the wire guiding device 130 and the wire feeding device 110 can move relative to each other. When the wire W1 pulls the wire feeding device 110 (for example, during the winding operation), the wire W1 also pulls the wire guiding device 130. The wire guiding device 130 can provide a resistance to the wire W1 by its own weight. Since the wire guiding device 130 can move relative to the wire feeding device 110 (for example, swing), the resistance can be transmitted to the wire feeding device 110, so that the tension of the wire W1 is maintained at a stable tension value _TC1 (the stable tension value _TC1 is shown in FIG. 4 ).

As shown in FIG. 4 , curve C1 is the stress curve of the wire W1 passing through the wire tension control mechanism 100 of FIG. 1A , and curve C2 is the stress curve of the wire without the wire guide device 130. The horizontal axis of FIG. 4 represents the angle of the wire feeding device 110. When the wire guide device 130 is in a vertical orientation, the angle of the wire feeding device 110 is defined as θ _0. For example, when the extension direction of the wire guide 131 of the wire guide device 130 is toward the center of the earth (or perpendicular to the ground), the angle of the wire feeding device 110 can be defined as θ ₀ , at which time the tension on the wire W1 is minimal or even 0. In one embodiment, the extension direction of the wire guide 131 of the wire guide device 130 can be substantially parallel to the AX1 axis shown in FIG. 1B ). The AX1 axis shown in FIG. 1B is, for example, the rotation axis of the base 12 of the drive mechanism 10. When the wire feeding device 110 rotates clockwise (for example, in the direction of one of θ _{- MAX} and θ _{+ MAX} ) or counterclockwise (for example, in the direction of the other of θ _{- MAX} and θ _{+ MAX} ), the wire W1 passing through the wire feeding device 110 will be loose or tight. Comparing the curves C1 and C2, due to the configuration of the wire guide device 130, the tension of the wire W1 can be kept substantially stable regardless of the angle of the wire feeding device 110.

As shown in FIGS. 1B and 4 , when the wire guide 131 rotates relative to the vertical position, the tension of the wire W1 becomes tighter or looser. The larger the angle of the wire guide 131 relative to the vertical position, the tighter or looser the tension of the wire W1 becomes. In this embodiment, the larger the angle of the wire guide 131 relative to the vertical position, the greater the torque generated by the deadweight of the wire guide 131, and the greater the tension correction effect on the wire W1, so that the tension of the wire W1 can be roughly maintained at a stable tension value T _C1 .

As shown in Figures 2D and 3, the wire feeding device 110 includes a flange 111, a connecting shaft 112, a bearing member 113 and at least one roller 114. The connecting shaft 112 is connected to the flange 111, for example, the connecting shaft 112 and the flange 111 are fixed to each other. In one embodiment, the connecting shaft 112 and the flange 111 are, for example, an integrally formed structure. In addition, the fixing member 121 of the connecting device 120 is connected to the flange 111. For example, the fixing member 121 and the flange 111 are fixed to each other. At least one screwing element (not shown) can pass through the through hole 111a of the flange 111 and be screwed into the screw hole 121t of the fixing member 121 to fix the relative position between the flange 111 and the fixing member 121. In addition, the rotor 122 has a through hole 122a, and the connecting shaft 112 can pass through the through hole 122a of the rotor 122. The connecting shaft 112 and the rotor 122 are coaxially connected. The inner diameter of the through hole 122a is larger than the outer diameter of the connecting shaft 112, so that the connecting shaft 112 and the rotor 122 are loosely matched, so that the connecting shaft 112 and the rotor 122 can rotate relative to each other. Since the connecting shaft 112 and the rotor 122 are loosely matched, when the wire W1 pulls the rotor 122 to rotate around the z-axis, the rotor 122 can rotate relative to the connecting shaft 112 without interfering with the connecting shaft 112, so as not to interfere with or change the winding or weaving path of the wire W1 (if the rotor 122 rotates while interfering with the connecting shaft 112, it will drive the wire feeding device 110 to move, which will unexpectedly interfere with or change the winding or weaving path of the wire W1).

As shown in FIGS. 2D and 3, the support member 113 includes a base 1131 and a stopper 1132. The base 1131 is connected to the stopper 1132. For example, the base 1131 and the stopper 1132 are fixed to each other. In one embodiment, the base 1131 and the stopper 1132 are, for example, an integrally formed structure. In the embodiment, the base 1131 and the stopper 1132 are substantially vertically connected, but a sharp angle or a blunt angle may be formed therebetween. The support member 113 is connected to the connecting shaft 112. At least one screwing element (not shown) can pass through the through hole 1132a of the stopper 1132 and screw into the screw hole (not shown) of the connecting shaft 112 to fix the relative position between the connecting shaft 112 and the stopper 1132. Since the bearing 113 and the connecting shaft 112 are detachably connected, the wire guide device 130 can be first sleeved on the connecting shaft 112, and then the stopper 1132 is assembled on the connecting shaft 112. After assembly, the connecting device 120 and the wire guide device 130 are confined to the area between the stopper 1132 and the flange 111.

As shown in Figures 2D and 3, multiple rollers 114 are rotatably connected to the base 1131, so that the friction resistance of the wire W1 passing through the two rollers 114 is reduced. In an embodiment, each roller 114 may include a connecting shaft 1141 and a wheel 1142, wherein the connecting shaft 1141 can be fixed to the base 1131, and the wheel 1142 is pivotally connected to the connecting shaft 1141.

As shown in Figures 2D and 3, the rotor 122 of the connecting device 120 and the wire guide 131 of the wire guide device 130 are fixed to each other. At least one screwing element (not shown) can pass through the through hole 131a of the wire guide 131 and screw into the screw hole 122t of the rotor 122 to fix the relative position between the wire guide 131 and the rotor 122. Since the wire guide 131 and the rotor 122 are fixed to each other, when the wire W1 pulls the wire guide 131 to rotate around the z axis, the rotor 122 can rotate accordingly.

As shown in FIGS. 2D and 3, the connection device 120 further includes at least one bearing, such as a first bearing 123 and a second bearing 124. The first bearing 123 and the second bearing 124 are disposed between the fixing member 121 and the rotor 122 to connect the fixing member 121 and the rotor 122 so that the fixing member 121 and the rotor 122 can rotate relative to each other through the bearings. The rotor 122 includes a first connecting portion 1221, a second connecting portion 1222 and a flange 1223, wherein the first connecting portion 1221 and the second connecting portion 1222 are respectively disposed on two opposite surfaces of the flange 1223, and the flange 1223 protrudes relative to the peripheral surface of the first connecting portion 1221 and the peripheral surface of the second connecting portion 1222. The flange 1223 can define the assembly position of the first bearing 123 and the second bearing 124. For example, due to the stop of the flange 1223, the position of the first bearing 123 and the second bearing 124 along the z-axis can be determined. In one embodiment, the first connecting portion 1221, the second connecting portion 1222 and the flange 1223 are, for example, an integrally formed structure. In addition, the bearing includes an inner ring, an outer ring and at least one ball, wherein the ball can be movably accommodated between the inner ring and the outer ring. The inner ring of the bearing is fixed to the rotor 122, and the outer ring of the bearing is fixed to the fixing member 121, so that the fixing member 121 and the rotor 122 can rotate relative to each other through the bearing. The bearing can reduce the rotational resistance. Thus, when the wire W1 pulls the rotor 122 to rotate, the weight of the wire guide 131 is almost or completely reflected to the wire W1 (if the resistance is greater, the torque generated by the weight will be reduced).

As shown in FIGS. 2D and 3 , the wire guide device 130 includes the aforementioned wire guide 131 and at least one roller 132. The wire guide 131 includes a sleeve 1311 and a base 1312. The sleeve 1311 is connected to the base 1312. In one embodiment, the sleeve 1311 and the base 1312 are an integrally formed structure. The aforementioned through hole 131a is formed in the sleeve 1311. The plurality of rollers 132 are rotatably connected to the base 1312, which can reduce the friction resistance of the wire W1 passing through the two rollers 132. In an embodiment, each roller 132 includes a connecting shaft 1321 and a wheel 1322, wherein the connecting shaft 1321 can be fixed to the base 1312, and the wheel 1322 is pivotally connected to the connecting shaft 1321.

The wire tension control mechanism 100 of the disclosed embodiment provides a resistance to the wire W1 through its own weight, which belongs to the "passive swing method". The following introduces the tension control method of another embodiment of the disclosed embodiment.

Passive damping swing method - using drive module (magnetic resistance module)

Please refer to Figures 5A to 6. Figure 5A shows a schematic diagram of a wire tension control mechanism 200 according to another embodiment of the present invention. Figure 5B shows a side view of the wire tension control mechanism 200 of Figure 5A. Figure 5C shows a cross-sectional view of the wire tension control mechanism 200 of Figure 5A along the direction 5C-5C'. Figure 6 shows an exploded view of the wire tension control mechanism 100 of Figure 5A.

The wire tension control mechanism 100 of the aforementioned winding system 1 can be replaced by a wire tension control mechanism 200. The wire tension control mechanism 200 includes the same or similar features (e.g., materials, structure and/or connection relationship) as the aforementioned wire tension control mechanism 100, and one of the differences is that the connection device 220 of the wire tension control mechanism 200 is different from the connection device 120.

As shown in FIGS. 5C to 6, the wire tension control mechanism 200 includes a wire feeding device 110, a connecting device 220, and a wire guiding device 130. The connecting device 220 includes a fixing member 221, a rotor 222, a first bearing 123, a second bearing 124, and a driving module 225. The fixing member 221 is connected to the wire feeding device 110. The rotor 222 is movably arranged relative to the fixing member 221. The wire guiding device 130 is connected to the rotor 222. The driving module 225 is connected to the rotor 222 and rotates with the rotor 222. In this way, the wire guiding device 130 and the wire feeding device 110 can move relative to each other (for example, swing). When the wire W1 pulls the wire device 110 (for example, during the winding operation), the wire W1 will also pull the wire guiding device 130. The driving module 225 can provide a reverse torque to the wire guiding device 130 (or the wire W1) according to the rotation amount of the rotor 222. This reverse torque is a resistance to the wire W1, so that the tension of the wire W1 is maintained at a stable tension value T _C1 (the stable tension value T _C1 is shown in FIG. 4). The aforementioned reverse torque can prevent the wire guiding device 130 from rotating too much or too fast.

The greater the rotation of the rotor 222, the greater the reverse torque provided by the drive module 225. When the wire guide 131 rotates relative to the vertical position, the tension of the wire W1 becomes tighter or looser. The greater the angle of the wire guide 131 relative to the vertical position, the tighter or looser the tension of the wire W1 becomes. The greater the rotation of the rotor 222, the greater the rotation of the drive module 225, the greater the reverse torque provided, and the greater the tension correction effect on the wire W1, so that the tension of the wire W1 can be maintained at a stable tension value T _C1 (the stable tension value T _C1 is shown in Figure 4).

As shown in FIGS. 5C to 6, the fixing member 221 includes a body 2211 and a cover 2212. The body 2211 and the fixing member 121 include the same or similar structure, which will not be described in detail here. The cover 2212 is connected to the body 2211. The cover 2212 and the body 2211 are, for example, an integrally formed structure. The cover 2212 can cover a portion of the drive module 225.

As shown in FIGS. 5C to 6, the rotor 222 includes a first connection portion 1221, a second connection portion 1222, and a flange 2223, wherein the first connection portion 1221 and the second connection portion 1222 are respectively disposed on two opposite surfaces of the flange 2223, and the flange 2223 protrudes relative to the peripheral surface of the first connection portion 1221 and the peripheral surface of the second connection portion 1222. The flange 2223 can define the assembly position of the first bearing 123 and the second bearing 124. For example, due to the stop of the flange 2223, the position of the first bearing 123 and the second bearing 124 along the z-axis can be determined. In this embodiment, the flange 2223 is, for example, a gear. The flange 2223 engages with the driving module 225 and can drive the driving module 225 to rotate.

As shown in Figures 5C to 6, the drive module 225 includes a driver 2251 and a gear 2252. In this embodiment, the drive module 225 is, for example, a magnetoresistive module, and its driver 2251 is, for example, a magnetoresistive device. The magnet in the driver 2251 is, for example, a permanent magnet. The gear 2252 is connected to the driver 2251 to drive the shaft 2251c of the driver 2251 to rotate. The driver 2251 can generate the aforementioned reverse torque according to the rotation of the shaft 2251c. The greater the rotation of the shaft 2251c, the greater the reverse torque generated by the driver 2251.

As mentioned above, the wire tension control mechanism 200 of the disclosed embodiment provides a resistance to the wire guide device 130 (or wire W1) through the driving module 225, which belongs to the "passive damping swing method". The following introduces the tension control method of another embodiment of the disclosed embodiment.

Passive damping swing method - using elastic device (spring)

Please refer to Figures 7 and 8. Figure 7 shows a schematic diagram of a wire tension control mechanism 300 according to another embodiment of the present invention, and Figure 8 shows an exploded view of the wire tension control mechanism 300 of Figure 7.

The wire tension control mechanism 100 of the aforementioned winding system 1 can be replaced by a wire tension control mechanism 300. The wire tension control mechanism 300 includes the same or similar features (e.g., materials, structure and/or connection relationship) as the aforementioned wire tension control mechanism 100, and one of the differences is that the connection device 320 of the wire tension control mechanism 300 is different from the connection device 120.

As shown in FIGS. 7-8 , the wire tension control mechanism 300 includes a wire feeding device 110, a connecting device 320, and a wire guiding device 130. The connecting device 320 includes a fixing member 121, a rotor 122, a first bearing 123, a second bearing 124, and an elastic device 325. The fixing member 121 is connected to the wire feeding device 110. The rotor 122 is movably arranged relative to the fixing member 121. The wire guiding device 130 is connected to the rotor 122. The elastic device 325 connects the fixing member 121 and the rotor 122. In this way, the wire guiding device 130 and the wire feeding device 110 can move relative to each other (for example, swing). When the wire W1 pulls the wire device 110 (for example, during the winding operation), the wire W1 also pulls the wire guiding device 130, and the wire guiding device 130 drives the rotor 122 to rotate, so that the elastic device 325 is deformed to provide an elastic restoring force to the wire guiding device 130 (or the wire W1). This elastic restoring force is a resistance to the wire W1, so that the tension of the wire W1 is maintained at a stable tension value T _C1 (the stable tension value T _C1 is shown in FIG. 4). The aforementioned elastic restoring force can prevent the wire guiding device 130 from rotating too much or too fast.

As shown in FIG. 8 , the elastic device 325 is, for example, an elastic sheet. The elastic device 325 includes a first end 3251, a second end 3252, and an elastic portion 3253. The elastic portion 3253 connects the first end 3251 and the second end 3252. The first end 3251 is fixed to the rotor 122, for example, to the protrusion 1223P of the flange 1223 of the rotor 122. The first end 3251 and the protrusion 1223P are fixed by, for example, screwing, clamping, welding, and other bonding techniques. The second end 3252 is fixed to the fixing member 121. The fixing structure and fixing method of the second end 3252 and the fixing member 121 are the same as or similar to the method of the first end 3251 and the rotor 122, and will not be repeated here.

In addition, when the wire guide device 130 is in a vertical position (for example, the wire guide member 131 is in a vertical position, such as parallel to the AX1 axis of FIG. 1B ), the elastic device 325 is in a free state. When the rotor 122 rotates, the elastic device 325 deforms to provide an elastic restoring force. The greater the rotation amount of the rotor 122, the greater the deformation amount of the elastic device 325, and the greater the elastic restoring force provided. In detail, when the angle of the wire guide 131 relative to the vertical direction is larger, it means that the tension of the wire W1 becomes tighter or looser, and the deformation of the elastic device 325 is also larger, the elastic restoring force provided is larger, and the tension correction effect on the wire W1 is also larger, so that the tension of the wire W1 can be maintained at a stable tension value _TC1 (stable tension value _TC1 is shown in Figure 4).

As mentioned above, the wire tension control mechanism 300 of the disclosed embodiment provides a resistance to the wire guide device 130 (or wire W1) through the elastic device 325, which belongs to the "passive damping swing method". The following introduces the tension control method of another embodiment of the disclosed embodiment.

Passive damping swing method - using elastic device (spring)

Please refer to Figure 9, which shows an exploded view of a wire tension control mechanism 400 according to another embodiment of the present invention.

The wire tension control mechanism 100 of the aforementioned winding system 1 can be replaced by a wire tension control mechanism 400. The wire tension control mechanism 400 includes the same or similar features (e.g., materials, structure and/or connection relationship) as the aforementioned wire tension control mechanism 300, and one of the differences is that the connection device 420 of the wire tension control mechanism 400 is different from the connection device 320.

As shown in FIG. 9, the wire tension control mechanism 400 includes a wire feeding device 110, a connecting device 320 and a wire guiding device 130. The connecting device 420 includes a fixing member 121, a rotor 122, a first bearing 123, a second bearing 124 and an elastic device 425. The connecting device 420 of the wire tension control mechanism 400 includes similar or identical technical features to the aforementioned connecting device 320, with one difference being that the elastic device 425 of the connecting device 420 is a spring, such as a tension spring or a compression spring. The connection method of the elastic device 425 with the fixing member 121 and the rotor 122 is similar to or the same as the connection method of the aforementioned elastic device 325 with the fixing member 121 and the rotor 122, which will not be described in detail here.

The method in which the wire tension control mechanism 400 of the disclosed embodiment provides a resistance to the wire guide device 130 (or wire W1) through the elastic device 425 also belongs to the "passive damping swing method". The following introduces the tension control method of another embodiment of the disclosed embodiment.

Active electronically controlled swing method - using drive module (motor module)

Please refer to Figures 10A to 11. Figure 10A shows a schematic diagram of a wire tension control mechanism 500 according to another embodiment of the present invention, Figure 10B shows a cross-sectional view of the wire tension control mechanism 500 of Figure 10A along the direction 10B-10B', and Figure 11 shows an exploded view of the wire tension control mechanism 500 of Figure 10A.

The wire tension control mechanism 100 of the aforementioned winding system 1 can be replaced by a wire tension control mechanism 500. The wire tension control mechanism 500 includes the same or similar features (e.g., materials, structure and/or connection relationship) as the aforementioned wire tension control mechanism 200, and one of the differences is that the connection device 520 of the wire tension control mechanism 500 is different from the connection device 220.

As shown in FIGS. 10A, 10B and 11, the wire tension control mechanism 500 includes a wire feeding device 110, a connecting device 520 and a wire guiding device 130. The connecting device 520 includes a fixing member 221, a rotor 222, a first bearing 123, a second bearing 124, a driving module 525 and a controller 526. The fixing member 221 is connected to the wire feeding device 110. The rotor 222 is movably arranged relative to the fixing member 221. The wire guiding device 130 is connected to the rotor 222. The driving module 525 is connected to the rotor 222 and rotates with the rotor 222. In this way, the wire guiding device 130 and the wire feeding device 110 can move relative to each other (for example, swing). When the wire W1 pulls the wire device 110 (for example, during the winding operation), the wire W1 will also pull the wire guiding device 130, and the wire guiding device 130 drives the rotor 222 to rotate. The driving module 525 can provide a reverse torque to the wire guiding device 130 (or the wire W1) according to the rotation amount of the rotor 222. This reverse torque is a resistance to the wire W1, so that the tension of the wire W1 is maintained at a stable tension value T _C1 (the stable tension value T _C1 is shown in FIG. 4). The aforementioned reverse torque can prevent the wire guiding device 130 from rotating too much or too fast.

In this embodiment, the controller 526 is a subcomponent of the connection device 520, but in another embodiment, the controller 526 and the connection device 520 can be components of the same level.

As shown in FIGS. 10A, 10B and 11, the driving module 525 includes a driver 5251 and a gear 2252. In this embodiment, the driving module 525 is, for example, a motor module, and the driver 5251 is, for example, a motor. The gear 2252 is connected to the driver 5251 to drive the shaft 5251c of the driver 5251 to rotate. The controller 526 is electrically connected to the driver 5251, and can sense the torque applied to the shaft 5251c of the driver 5251, and control the reverse torque applied by the driver 5251 to the rotor 222 according to the torque applied to the driver 5251, so that the tension of the wire W1 is maintained at a stable tension value T _C1 . The greater the torque applied to the driving module 525, the greater the reverse torque provided by the driving module 525. In addition, in this embodiment, the stable tension value T _C1 can be set by the controller 526.

As mentioned above, the wire tension control mechanism 500 of the disclosed embodiment provides a resistance to the wire guide device 130 (or wire W1) through the drive module 525, which belongs to the "master-controlled electric control method". The following introduces the tension control method of another embodiment of the disclosed embodiment.

Active electronically controlled swing method - using drive module and strain gauge

Please refer to Figures 12A and 12B. Figure 12A shows a schematic diagram of a wire tension control mechanism 600 according to another embodiment of the present invention, and Figure 12B shows an exploded view of the wire tension control mechanism 600 of Figure 12A.

The wire tension control mechanism 100 of the aforementioned winding system 1 can be replaced by a wire tension control mechanism 600. The wire tension control mechanism 600 includes the same or similar features (e.g., materials, structure and/or connection relationship) as the aforementioned wire tension control mechanism 200, and one of the differences is that the wire tension control mechanism 600 further includes a strain gauge 640.

As shown in FIGS. 12A and 12B, the wire tension control mechanism 600 includes a wire feeding device 110, a connecting device 620, a wire guiding device 130, and a strain gauge 640. In this embodiment, the strain gauge 640 and the connecting device 620 are components of the same order. In another embodiment, the strain gauge 640 may be a subcomponent of the connecting device 620. In addition, the strain gauge 640 may be disposed on any roller of the guiding device 130, as long as it can be pressed by the wire W1 and sense the tension change of the wire W1. In one embodiment, as shown in FIG. 12A , the strain gauge 640 may be disposed in the middle of the three rollers 132 ′, so that the difference between the measured tension value of the strain gauge 640 and the actual tension value of the wire W1 is smaller or minimized, but the present invention is not limited to this embodiment. The tension of the wire W1 is applied to the strain gauge 640 on the roller 132, causing the strain gauge to deform. The deformation of the strain gauge causes impedance change, and the voltage or current signal generated by the impedance change can be transmitted to the drive module 625 and/or the controller 526.

As shown in Figures 12A and 12B, the connecting device 620 includes a fixing member 221, a rotor 222, a first bearing 123, a second bearing 124, a drive module 625, and a controller 526. The fixing member 221 is connected to the wire feeding device 110. The rotor 222 is movably arranged relative to the fixing member 221. The wire guiding device 130 is connected to the rotor 222. The drive module 625 is connected to the rotor 222 and rotates with the rotor 222. In this way, the wire guiding device 130 and the wire feeding device 110 can move relative to each other (for example, swing). When the wire W1 pulls the wire feeding device 110 (for example, during the winding operation), the wire W1 will also pull the wire guiding device 130. The driving module 625 can provide a reverse torque to the wire guiding device 130 (or the wire W1) according to the rotation amount of the rotor 222. The reverse torque acts as a resistance to the wire W1, so that the tension of the wire W1 is maintained at a stable tension value T _C1 (the stable tension value T _C1 is shown in FIG. 4 ). The aforementioned reverse torque can prevent the wire guiding device 130 from rotating too much or too fast.

As shown in FIGS. 12A and 12B , the strain gauge 640 is disposed on one of the plurality of rollers 132 to sense the tension of the wire W1 pressing against it. In one embodiment, as long as the wire W1 can press against the strain gauge 640, the disclosed embodiment does not limit the configuration position of the strain gauge 640. In addition, the drive module 625 includes a driver 6251 and a gear 2252. The gear 2252 is connected to the driver 6251 to drive the shaft 6251c of the driver 6251 to rotate. In this embodiment, the magnet (not shown) in the driver 6251 is, for example, an electromagnet, which can change the magnetic field according to the received current. In detail, the controller 526 can receive the signal of the strain gauge 640 to obtain the measured tension value T _d of the wire W1, and then send a control signal S1 according to the measured tension value T _d to control the control current of the magnet in the driver 6251. When the difference between the measured tension value T _d and the preset tension value is larger, the control current applied to the magnet in the driver 6251 is larger, so as to keep the tension of the wire W1 at a stable tension value T _C1 .

In this embodiment, the controller 526 is a subcomponent of the connection device 620, but in another embodiment, the controller 526 and the connection device 620 can be components of the same level.

As mentioned above, the wire tension control mechanism 600 of the disclosed embodiment controls the reverse torque applied to the rotor 222 by the drive module 625 according to the tension of the wire W1, which belongs to the "active electric swing method". The tension control method of another embodiment of the disclosed embodiment is introduced below.

Active electronically controlled swing method - using drive module and strain gauge

Please refer to Figures 13A and 13B. Figure 13A shows a schematic diagram of a wire tension control mechanism 700 according to another embodiment of the present invention, and Figure 13B shows an exploded view of the wire tension control mechanism 700 of Figure 13A.

The wire tension control mechanism 100 of the aforementioned winding system 1 can be replaced by a wire tension control mechanism 700. The wire tension control mechanism 700 includes the same or similar features (e.g., materials, structure and/or connection relationship) as the aforementioned wire tension control mechanism 600, and one of the differences is that the connection device 720 of the wire tension control mechanism 700 is different from the connection device 620.

As shown in FIGS. 13A and 13B, the wire tension control mechanism 700 includes a wire feeding device 110, a connecting device 720, a wire guiding device 130, and a strain gauge 640. In this embodiment, the strain gauge 640 and the connecting device 720 are components of the same order. In another embodiment, the strain gauge 640 may be a subcomponent of the connecting device 720.

As shown in FIGS. 13A and 13B , the wire tension control mechanism 700 includes a wire feeding device 110, a connecting device 720, and a wire guiding device 130. The connecting device 720 includes a fixing member 221, a rotor 222, a first bearing 123, a second bearing 124, a driving module 525, and a controller 526. The connecting device 720 includes a fixing member 221, a rotor 222, a first bearing 123, a second bearing 124, a driving module 225, and a controller 526. The fixing member 221 is connected to the wire feeding device 110. The rotor 222 is movably arranged relative to the fixing member 221. The wire guiding device 130 is connected to the rotor 222. The driving module 525 is connected to the rotor 222 and rotates with the rotor 222. In this way, the wire guiding device 130 and the wire feeding device 110 can move relative to each other (for example, swing). When the wire W1 pulls the wire feeding device 110 (for example, during the winding operation), the wire W1 will also pull the wire guiding device 130, and the wire guiding device 130 drives the rotor 222 to rotate. The driving module 525 can provide a reverse torque to the wire guiding device 130 (or the wire W1) according to the rotation amount of the rotor 222. This reverse torque is a resistance to the wire W1, so that the tension of the wire W1 is maintained at a stable tension value T _C1 (the stable tension value T _C1 is shown in Figure 4). The aforementioned reverse torque can prevent the wire guiding device 130 from rotating too much or too fast.

In this embodiment, the controller 526 is a subcomponent of the connection device 720, but in another embodiment, the controller 526 and the connection device 720 can be components of the same level.

As shown in FIGS. 13A and 13B , the driving module 525 includes a driver 5251 and a gear 2252. The gear 2252 is connected to the driver 5251 to drive the rotating shaft 5251c of the driver 5251 to rotate. In this embodiment, the controller 526 can receive the signal of the strain gauge 640 to obtain the measured tension value T _d of the wire W1, and then send a control signal S1 according to the measured tension value T _d to control the reverse torque applied by the driver 5251 to the rotor 222. When the difference between the measured tension value T _d and the preset tension value is larger, the controller 526 controls the driver 5251 to apply a larger reverse torque to the rotor 222 to keep the tension of the wire W1 at a stable tension value T _C1 .

As mentioned above, the wire tension control mechanism 700 of the disclosed embodiment controls the reverse torque applied to the rotor 222 by the drive module 525 according to the tension of the wire W1, which belongs to the "active electric swing method".

In summary, the disclosed embodiment proposes a wire tension control mechanism, a winding system and a wire tension control method using the same. The wire tension control mechanism can adopt a passive (damping) swing method or an active electric control swing method to keep the wire at a roughly stable tension value. Regardless of the passive swing method or the active electric control swing method, the wire tension control mechanism can automatically or adaptively adjust the wire tension value to keep the wire at a roughly stable tension value.

In summary, although the present invention has been disclosed as above by the embodiments, it is not intended to limit the present invention. Those with common knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of the patent application attached hereto.

100: Wire tension control mechanism

110: Line supply device

120: Connecting device

130: Wire guide device

x,y,z:axis

W1: Wire

Claims (18)

A wire tension control mechanism includes: a wire feeding device; a connecting device including: a fixing member connected to the wire feeding device; and a rotor movably arranged relative to the fixing member; a wire guiding device connected to the rotor; wherein the wire feeding device includes a connecting shaft, the rotor has a through hole, the connecting shaft passes through the through hole of the rotor, and the connecting shaft and the rotor are coaxially connected. The wire tension control mechanism as described in claim 1, wherein the connecting device further includes: a bearing disposed between the fixing member and the rotor. The wire tension control mechanism as described in claim 1, wherein the wire feeding device further includes a flange, the connecting shaft is connected to the flange, and the fixing member is connected to the flange. A wire tension control mechanism as described in claim 3, wherein the fixing member is fixed to the flange, and the rotor and the connecting shaft are loosely matched. A wire tension control mechanism as described in claim 1, wherein the tension of a wire is minimum when the wire guide device is in a vertical position. The wire tension control mechanism as described in claim 1, wherein the connecting device further includes: an elastic device connecting the fixing member and the rotor. A wire tension control mechanism as described in claim 6, wherein when the wire guide device is in a vertical position, the elastic device is in a free state. The wire tension control mechanism as described in claim 1, wherein the connection device further includes: a magnetic resistance module connected to the rotor and used to: provide the rotor with a reverse torque according to a rotation amount of the rotor. The wire tension control mechanism as described in claim 1, wherein the connecting device further includes: a motor module connected to the rotor and used to: provide the rotor with a reverse torque according to a rotation amount of the rotor. The wire tension control mechanism as described in claim 1, wherein the wire guide device includes a wire guide and a plurality of rollers, and the connection device further includes: a drive module connected to the rotor; a strain gauge disposed on one of the rollers and used to sense a measured tension value of a wire; a controller electrically connected to the drive module and the strain gauge, and used to: control the torque applied by the drive module to the rotor according to the measured tension value. The wire tension control mechanism as described in claim 10, wherein the driving module is a magnetic resistance module or a motor module. A winding system, comprising: a wire tension control mechanism as described in any one of claims 1 to 11; and a driving mechanism connected to the wire tension control mechanism and used to drive a wire passing through the wire tension control mechanism to wrap a carrier. A wire tension control method, comprising: providing a wire tension control mechanism as described in claim 1; and the wire tension control mechanism provides a resistance to the wire based on the pulling of the wire. The wire tension control method as described in claim 13, wherein when the wire guide device is in a vertical position, the tension of the wire is minimum; the step of the wire tension control mechanism providing the wire resistance based on the pulling of the wire includes: based on the swing of the wire guide device relative to the vertical position, the wire guide device provides the wire resistance by its own weight. The wire tension control method as described in claim 13, wherein the connecting device further includes an elastic device, the elastic device connects the fixing member and the rotor; when the wire guiding device is in a vertical position, the elastic device is in a free state; the step of the wire tension control mechanism providing the wire with the resistance based on the pulling of the wire includes: based on the swing of the wire guiding device relative to the vertical position, the elastic device provides an elastic restoring force to the wire guiding device. The wire tension control method as described in claim 13, wherein the connection device further includes a magnetic resistance module, the magnetic resistance module is connected to the rotor; the step of the wire tension control mechanism providing the wire resistance based on the pulling of the wire includes: the magnetic resistance module provides the rotor with a reverse torque according to a rotation amount of the rotor. The wire tension control method as described in claim 13, wherein the connection device further includes a motor module, the motor module is connected to the rotor; the step of the wire tension control mechanism providing the wire resistance based on the pulling of the wire includes: the motor module provides the rotor with a reverse torque according to a rotation amount of the rotor. The wire tension control method as described in claim 13, wherein the wire guide device includes a wire guide and a plurality of rollers; the connection device further includes a drive module, a strain gauge and a controller, the drive module is connected to the rotor, the strain gauge is arranged on one of the rollers, and the controller is electrically connected to the drive module and the strain gauge; the step of the wire tension control mechanism providing the wire with the resistance based on the pulling of the wire includes: the strain gauge senses a measured tension value of a wire; and the controller controls the torque applied by the drive module to the rotor according to the measured tension value.

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