TW201702166A - Sheet run-out detecting mechanism, roll body and method for manufacturing roll body - Google Patents

Abstract

Provided is a sheet material running-out detecting mechanism including a sheet material information part 14 that indicates information on a sheet material 12 that is wound around a core member 11 having a light passing part 111 formed therein, a reading-out part that optically reads the sheet material information part 14, and a detecting part that detects running-out of the sheet material 12, the sheet material information part 14 is supported at its part corresponding to the light passing part 111 to a winding end of the sheet material 12 to the core member 11; and the detecting part is configured, during operation of drawing out the sheet material 12, to detect that the sheet material 12 exists when the reading-out part receives a readout signal produced by reading out the sheet material information part 14, and to detect that the sheet material 12 runs out when the reading-out part does not receive the readout signal.

Description

Sheet material exhaustion detecting mechanism, drum body and drum body manufacturing method

The present invention relates to a sheet material end detecting means, a drum body, and a drum body used in a sheet use machine for pulling a sheet material from a drum body, for example.

In an example of a sheet-use machine, that is, a medicine packaging device, there is obtained information on a sheet material, and the information is motivated according to the information. The information on the sheet material is a core member that is wound around the sheet material (for example, refer to Patent Document 1).

In the pharmaceutical packaging device, in addition to the configuration for acquiring information on the sheet material, a configuration for detecting that the sheet has been used up is provided. In the invention of Patent Document 1, it is a mechanical structure of a "paper end detection pin". In addition, if such a mechanical configuration is provided, there is a possibility that a failure occurs due to abrasion of the component or the like.

[Practical Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2009-227469

An object of the present invention is to provide a method for manufacturing a sheet running detection mechanism, a drum body, and a drum body which can be easily detected by using a sheet material.

The sheet material end detecting means of the present invention includes a drum body configured to wind a sheet material around a tubular core member, and a holding portion that holds the drum body so that the sheet material is pulled out, and a sheet information unit that displays information on the sheet material on the drum body, and a reading unit that optically reads the sheet information unit of the drum body held by the holding unit, and The detecting unit that has run out of the sheet material is detected based on the reading result obtained by the reading unit, and the core member is a light passing portion that has optical light that can be optically read by the reading unit from the inside toward the outside. The sheet information unit is a winding end portion of the core member held in the sheet member at a position corresponding to the light passage portion, and the detecting portion is formed from the holding portion held by the holding portion. When the drum body pulls out the sheet material, the reading unit detects that the reading signal of the sheet information unit is read, and detects that the sheet material is still uncollectible. Read the words on the aforementioned signal detection It was determined that the aforementioned sheet material had been used up.

Further, the drum body of the present invention includes a cylindrical core member and a sheet member that is wound around the core member, and the core member is a light passage portion that optically reads light from the inside toward the outside. The sheet information portion that displays information on the sheet material is a winding end portion of the core member that is held in the sheet material at a position corresponding to the light passage portion.

Further, the sheet material information portion may be formed directly on the inner surface of the sheet material.

Further, the sheet material includes a sheet main body and a mounting portion that is attached to a portion where the winding of the sheet main body is started, and the sheet information portion may be formed in the mounting portion.

Further, in the core member, a through hole penetrating in the inner and outer directions may be formed as the light passage portion.

Further, a method of manufacturing a drum body according to the present invention is a method of manufacturing a drum body in which a sheet material is wound around a tubular core member to produce a drum body, and includes a process of winding the sheet material around the core member, and A process in which a sheet material information portion relating to information of the aforementioned sheet material is formed on the sheet material in a previous process or a subsequent process of attaching the aforementioned sheet material to the core member, the core member having light The light passage portion that can be optically read from the inside to the outside can be configured such that the sheet information portion can be positioned at a position corresponding to the light passage portion while the sheet information portion is formed in the sheet member. The thinner portion of the sheet member held in the sheet member facing the winding end portion of the core member The sheet information portion is formed on the aforementioned sheet material.

Further, in the method of manufacturing the roller body of the present invention, the process of forming the sheet information portion on the sheet material is carried out by a process in which the sheet material is wound around the core member, and the sheet material is formed. In the process of attaching the core member, the sheet information unit can hold the sheet at a position corresponding to the light passage portion and held in the end portion of the sheet member toward the winding end portion of the core member. A coil of material is attached to the aforementioned core member.

Further, in the method of manufacturing the drum body of the present invention, the light passage portion is a through hole penetrating the core member in the inner and outer directions, and the sheet material information portion is formed on the sheet material, and the sheet material is wound around the sheet material. The latter process of the process of the core member is carried out, and in the process, the sheet information portion is formed at the end portion of the sheet member facing the core member at a position corresponding to the through hole.

1‧‧‧Drum body

11‧‧‧ core components

111‧‧‧Light passage, through hole, through window

111b‧‧‧Light passage (not through hole), part

112‧‧‧ inside

12‧‧‧Sheet and packaging materials

12a‧‧‧Sheet body, package body

12b‧‧‧Installation Department

13‧‧‧Forming section, sheet section

14‧‧‧Sheet Information Department, Packaging Materials Information Department

2‧‧‧ Keeping Department

3‧‧‧ Half-folding mechanism

4‧‧‧ hopper

6‧‧‧Reading Department

7‧‧‧Control Department

8‧‧‧Detection Department

21‧‧‧Axis

[Fig. 1] A perspective view showing a mechanism for packaging a medicine using the drum body of the first embodiment of the present invention.

[Fig. 2] A perspective view showing the appearance of the drum body, showing the drum body of the first embodiment of the present invention.

[Fig. 2] Fig. 2 is a perspective view showing the drum body of the first embodiment of the present invention, showing a cross section in the radial direction of the drum body, and an enlarged main portion.

[Fig. 2C] shows the drum body of the first embodiment of the present invention, showing A schematic cross-sectional view of the structure of the drum body.

[Fig. 3] A schematic perspective view showing the relationship between the drum body and the holding portion of the drug packaging device according to the first embodiment of the present invention.

[Fig. 4] A schematic perspective view showing a portion where the packaging material is separated from the core member in the drum body according to the first embodiment of the present invention.

[Fig. 5] A schematic cross-sectional view showing a configuration of a drum body according to a second embodiment of the present invention.

Fig. 6 is a view for explaining a modification of the packaging material.

[Fig. 7] A schematic cross-sectional view showing a modification of the core member.

According to the present invention, two main embodiments are mainly described below.

-First Embodiment -

Fig. 1 is a view showing a peripheral portion of a drum body 1 in a medicine packaging device including a packaging material end detecting means. The drum body 1 is constituted by a long sheet material, that is, a wrapping material 12 is wound around the core member 11. The sheet using machine, that is, the medicine packaging device, pulls the package material 12 out of the drum body 1. The drug packaging device is used to package a solid drug.

The medicine packaging device includes a holding unit 2 that holds the drum body 1 and a packaging material 12 that pulls the medicine from the drum body 1 held by the holding unit 2. The hopper 4 and the agent that is put into the packaging material 12 through the hopper 4 are sealed in the packaging material 12 The sealing portion 5 and the control portion 7 that controls the sealing portion 5.

The holding portion 2 has a shaft portion 21 as shown in Fig. 3 . The shaft portion 21 is rotatably provided around the axis of the shaft portion 21. The core member 11 of the drum body 1 is externally fitted into the shaft portion 21 of the holding portion 2.

A half-fold mechanism 3 is provided between the holding portion 2 and the hopper 4. The half-folding mechanism 3 is a half of the packaging material 12 that is pulled out from the drum body 1 in the width direction. In the half-folded portion of the packaging material 12, the hopper 4 is inserted as shown in Fig. 1.

The sealing portion 5 functions as an acting portion that acts on the packaging material 12 that is pulled out from the drum body 1 held by the holding portion 2. In the sealing portion 5, the packaging material 12 is sealed by heat, and the chemical is sealed in the packaging material 12 in a half-folded state. That is, the action of the sealing portion 5 of the acting portion acts on the packaging material 12, and the packaging material 12 is sealed by thermocompression bonding.

2A and 2B are views for explaining the drum body 1. Fig. 2A is a perspective view showing the appearance of the drum body 1, and Fig. 2B is a view showing an enlarged main portion of the drum body 1 in the radial direction. FIG. 2C is a schematic cross-sectional view showing the configuration of the drum body 1. The drum body 1 includes a core member 11 and a packaging material 12 that is wound around the core member 11.

The core member 11 has a cylindrical shape and is cylindrical in the present embodiment. The core member 11 of the present embodiment is made of resin. However, the material of the core member 11 is not limited to the resin. The core member 11 may be formed of various materials if it is formed in a shape retaining property in which the packaging material 12 is wound.

The core member 11 has light that can pass from the inside toward the outside. The light passing portion is optically read by the reading unit 6 to be described later. In the present embodiment, a through window 111 as a light passage portion is formed in the core member 11. The through window 111 is a through hole that penetrates the core member 11 in a direction intersecting the axis of the core member 11. In the present embodiment, the through window 111 is formed such that the core member 11 penetrates in the inner and outer directions, that is, in the radial direction of the core member 11. Therefore, the light passage portion can be formed regardless of the material or the like of the core member 11. The through window 111 is, for example, a rectangular shape or a square shape as viewed in the radial direction. However, the shape of the through window 111 is not limited to a rectangle or a square, a circle or a polygon, and the like, and various shapes may be used. The through window 111 is formed in a portion close to one end portion of the core member 11 in the axial direction as shown in FIG. 2B.

The through window 111 is preferably formed as small as possible as compared with the total area of the inner surface 112 (refer to FIG. 2B) of the core member 11. By reducing the area of the through window 111, the influence of the through window 111 on the packaging material 12 can be reduced. Specifically, by reducing the division of the area of the through window 111, it is difficult to cause a recess in the portion of the packaging material 12 that is wound around the core member 11 corresponding to the through window 111. Therefore, wrinkles in the packaging material 12 or traces of the through window 111 can be alleviated.

However, in the through-window 111 of the present embodiment, it is necessary to make the sheet information portion 14, which will be described later, not to be hidden by the core member 11, and to have an area larger than the area of the package information portion 14.

In the drum body 1, a packaging material information portion 14 on which information on the packaging material 12 is displayed is formed. Regarding the information on the packaging material 12, the kind of the packaging material 12 (for example, material and thickness) can be exemplified. And there is money about the packaging material 12 For example, information relating to traceability may be exemplified, such as the manufacturing lot number of the packaging material 12 and the information of the manufacturing office.

The packaging material information unit 14 is optically readable. The light for optically reading the packaging material information portion 14 is not limited to visible light, and may be, for example, infrared rays or ultraviolet rays. The packaging material information unit 14 is formed by printing.

The packaging material information unit 14 combines the physical elements (optical or visual) of the plural elements. The packaging material information unit 14 is the entirety of the packaging material information unit 14 (that is, one of the plurality of elements described above), and displays information on the packaging material 12. In other words, when the packaging material information unit 14 is a part of the packaging material information unit 14 (that is, one or more elements of the plurality of elements), the information on the packaging material 12 cannot be displayed. The packaging material information unit 14 is a digitalizer who will have information about the packaging material 12. In the present embodiment, the package information unit 14 uses a two-dimensional code ("QR code" (Japanese registered trademark)). Therefore, the reading unit 6 to be described later can use a general-purpose means.

The packaging material information portion 14 is a winding end portion of the core member 11 held in the packaging material 12 at a position corresponding to the through window 111. In other words, the packaging material information portion 14 is a portion of the packaging material 12 that faces the through-hole 111 of the winding end portion of the core member 11. In the present embodiment, the packaging material information portion 14 is formed directly on the inner surface of the packaging material 12. Since the packaging material information unit 14 is formed on the inner surface of the packaging material 12, the packaging material 12 can be surely read from the inside of the core member 11 even if it is opaque. And since the packaging material information portion 14 is formed directly on the packaging material 12, Further, in the case where the member for forming the packaging material information portion 14 is provided, the manufacturing cost can be lowered.

In one example, when the drum body 1 is manufactured, the packaging material 12 is first wound around the core member 11. Thereafter, the packaging material information portion 14 is formed by printing. At this time, the packaging material information portion 14 is formed at the winding end portion of the core member 11 in the packaging material 12 at a position corresponding to the through window 111. In other words, the packaging material information portion 14 is formed in a portion of the packaging material 12 facing the through-window 111 of the winding end portion of the core member 11.

When the method of manufacturing the drum body 1 is carried out according to these processes, the winding operation of the packaging material 12 for the core member 11 can be facilitated. When the packaging material information unit 14 is formed in advance on the packaging material 12 and the packaging material 12 is wound around the core member 11, it is necessary to position the packaging material information portion 14 in the through window 111 of the core member 11. As described above, in the method of manufacturing the drum body 1 of the present embodiment, the packaging material information portion 14 and the through window 111 of the core member 11 do not need to be aligned, so that the operation of wrapping the packaging material 12 on the core member 11 can be facilitated.

In another example, when the drum body 1 is manufactured, the packaging material information portion 14 is first formed on the packaging material 12 by printing. Thereafter, the packaging material information portion 14 is wound around the core member 11 so as to be held by the winding end portion of the core member 11 in the packaging material 12 at a position corresponding to the through window 111.

When the method of manufacturing the drum body 1 is carried out according to the above-described process, the package material information portion 14 can be formed on the inner surface of the packaging material 12 after the packaging material 12 is wound around the core member 11. 12 The forming operation of the packaging material information unit 14 is facilitated.

Thus, the process of forming the packaging material information portion 14 on the packaging material 12 can be carried out by the previous process or the subsequent process of attaching the packaging material 12 to the core member 11.

FIG. 3 is a schematic perspective view showing the relationship between the drum body 1 and the holding portion 2. Although not shown, the core member 11 is provided with an engaged portion, and the shaft portion 21 of the holding portion 2 is provided with an engaging portion that engages with the engaged portion of the core member 11. When the core member 11 of the drum body 1 is fitted to the shaft portion 21, the engaging portion of the shaft portion 21 is engaged with the core member 11. Therefore, the core member 11 rotates together with the shaft portion 21.

In the shaft portion 21 of the holding portion 2, a reading portion 6 that optically reads the packaging material information portion 14 of the drum body 1 held by the holding portion 2 is provided. The reading unit 6 is disposed inside the core member 11 of the drum body 1 held by the holding unit 2, and is provided corresponding to the packaging material information unit 14 of the drum body 1.

The reading unit 6 is connected to the detecting unit 8 for detecting that the packaging material 12 has been used up. In the present embodiment, the control unit 7 and the detecting unit 8 are integrally provided. However, the present invention is not limited thereto, and the control unit 7 and the detection unit 8 may be provided separately.

The control unit 7 sets the temperature of the thermocompression bonding performed by the sealing unit 5 in accordance with the reading result obtained by the reading unit 6. Thereby, the packaging material 12 can be thermocompression-bonded at the temperature corresponding to the type of the packaging material 12. Further, the detecting unit 8 detects that the packaging material 12 has been used up based on the reading result obtained by the reading unit 6. Specifically, the detecting unit 8 is kept in the hold When the drum unit 1 of the unit 2 pulls out the packaging material 12, when the reading unit 6 reads the reading signal from the packaging material information unit 14, it detects that the packaging material 12 is still present. Moreover, if the read signal is not received, it is detected that the package material 12 has been used up.

When the drum body 1 is attached to the holding portion 2, the reading portion 6 reads the packaging material information portion 14 of the drum body 1. The control unit 7 sets the temperature of the thermocompression bonding performed by the sealing unit 5 in accordance with the reading result obtained by the reading unit 6. When the packaging material 12 is pulled out from the drum body 1, and the half-folding mechanism 3 is provided, it is folded in half by the half-folding mechanism 3. The medicament is introduced into the half-folded portion of the packaging material 12 through the hopper 4. This agent is sealed in the packaging material 12 by the sealing portion 5. At this time, the sealing portion 5 thermally presses the packaging material 12 by the temperature of the thermal compression set by the control portion 7. The medicine packaging device repeatedly inserts and seals the medicine as described above while pulling the packaging material 12 from the drum body 1.

Fig. 4 is a schematic perspective view showing the portion of the packaging material 12 detached from the core member 11. When the packaging material 12 is pulled out from the drum body 1, finally, the wound end portion of the packaging material 12 toward the core member 11 is also pulled out. In this case, the packaging material information portion 14 is separated from the position of the through window 111 corresponding to the core member 11. Therefore, the reading unit 6 cannot read the packaging material information unit 14. The detecting unit 8 detects that the packaging material 12 has been used, and detects that the packaging material 12 has been used up.

The sheet material end detecting means, that is, the package material end detecting means, is composed of the drum body 1, the holding portion 2, the packaging material information portion 14, the reading portion 6, and the detecting portion 8.

According to the first embodiment as described above, the packaging material information portion 14 is a winding end portion of the core member 11 held in the packaging material 12 at a position corresponding to the through window 111. The reading unit 6 is provided in the corresponding packaging material information unit 14. Therefore, the reading unit 6 can read the packaging material information unit 14 before the eve of the use of the packaging material 12. Moreover, the control unit 7 can optimally control the sealing portion 5.

When the packaging material 12 is pulled out from the drum body 1, finally, the wound end portion of the packaging material 12 toward the core member 11 is also pulled out. Further, the packaging material information unit 14 is separated from the position corresponding to the through window 111. In this case, the reading unit 6 cannot read the packaging material information unit 14.

In view of this, the detecting unit 8 receives the packaging material information unit 14 from the reading unit 6 when the drawing unit 8 pulls out the packaging material 12 from the drum body 1 held by the holding unit 2. If the read signal is detected, it is detected that there is a package material 12. If the read signal is not received, it is detected that the package material 12 has been used up. Thus, the detecting unit 8 can detect that the packaging material 12 has been used up, based on the fact that the reading unit 6 cannot read the packaging material information unit 14. Therefore, it is not necessary to provide a configuration in which the packaging material 12 has been used up to the detection (for example, "paper end detecting pin" of Patent Document 1). Therefore, since the failure portion can be reduced, it is possible to become a packaging material exhaustion detecting mechanism in which the failure is unlikely to occur.

- Second embodiment -

Next, a second embodiment will be described. For the parts common to the functions of the first embodiment, the same symbols are attached to the drawings, and in principle, the first one is omitted. Repeat the description of the example.

Fig. 5 is a schematic cross-sectional view showing the configuration of the drum body 1. In the first embodiment described above, the packaging material information portion 14 is a winding end portion of the core member 11 that is directly held in the packaging material 12. In the second embodiment, the packaging material information portion 14 is the end portion of the core member 11 that is held in the packaging material 12 indirectly through the sheet portion 13.

In detail, the drum body 1 includes a core member 11 and a packaging material 12 wound around the core member 11, and an outer surface of the core member 11 and an inner surface of the packaging material 12 to form a packaging material information unit. The sheet portion 13 of the forming portion for 14 is used. The sheet portion 13 is a wound end portion of the core member 11 that is adhered (adhered, adhered, etc.) in the packaging material 12. In the sheet portion 13, a packaging material information portion 14 is formed.

According to the second embodiment as described above, the sheet portion 13 is adhered to the packaging material 12, and the packaging material information portion 14 is formed in the sheet portion 13. Therefore, when the packaging material 12 is formed in the packaging material 12, the material of the packaging material 12 or the like is not limited. The sheet portion 13 can be selected from a material or the like which can form the package material information portion 14 reliably.

The first and second embodiments of the present invention have been described above, but the present invention is not limited to the above-described two embodiments, and various modifications can be added without departing from the spirit and scope of the invention.

The drum body 1 may be configured such that the packaging material 12 that has been half-folded in advance is wound around the core member 11. In this case, the half-fold mechanism 3 provided between the holding portion 2 and the hopper 4 in the foregoing embodiment is unnecessary.

The package material information unit 14 can also use a code other than the two-dimensional code. To. The package information unit 14 may be, for example, a bar code (one-dimensional code).

When the packaging material information unit 14 is optically readable, various means can be employed. The packaging material information unit 14 may have characters, figures, or symbols as constituent elements. The packaging material information unit 14 may have a color as a constituent element. The packaging material information unit 14 may have irregularities as constituent elements. Further, the package information unit 14 may be composed of a plurality of elements that are physically (optical or visual) separated.

The method of forming the packaging material information unit 14 may be a method other than printing. In the method of forming the packaging material information portion 14 that can be optically read, various methods such as non-printing concepts such as vapor deposition or etching can be employed.

Fig. 6 is a view for explaining a modification of the packaging material 12. As shown in Fig. 6, the packaging material 12 may include a packaging material main body 12a and a mounting portion 12b different from the packaging material main body in a portion where the winding of the packaging material main body 12a is started. The mounting portion 12b is a connector for connecting the package body 12a to the core member 11, for example, a reading tape. The packaging material information unit 14 is a portion formed in the through window 111 corresponding to the mounting portion 12b. When the packaging material 12 is pulled out from the drum body 1, finally, the mounting portion 12b is also pulled out, and the packaging material information portion 14 formed in the mounting portion 12b is separated from the position of the through-window 111 of the corresponding core member 11.

In the case of such a modification, the packaging material 12 is provided with a packaging material main body 12a and a mounting portion 12b that is attached to a portion where the winding of the packaging material main body 12b is started, and the mounting portion 12b is formed with the packaging material information. Part 14. Therefore, when the packaging material information portion 14 is formed in the packaging material 12, the material or the like of the packaging material main body 12a is not limited. The mounting portion 12b can select a material or the like that can reliably form the packaging material information portion 14.

The fitting member may be fitted into the through hole, that is, the space provided by the through window 111. This fitting member is made of a material through which light passes, whereby the reading portion 6 can be optically read from the inside of the core member 11 toward the outside. In this case, the light passing portion is constituted by the through window 111 and the fitting member. In this configuration, the space of the through window 111 is buried by the fitting member, and the outer surface of the fitting member and the outer surface of the core member 11 can be formed substantially in the same plane. Thereby, in the portion of the packaging material 12 that is wound around the core member 11 corresponding to the through window 111, the depression is less likely to occur.

Fig. 7 is a schematic cross-sectional view showing a modification of the core member 11. In the core member 11, it is not always necessary to provide a through hole, that is, a through window 111, as in the foregoing embodiment. For example, the core member 11 is integrally formed of a material through which light can pass and a material in which light is blocked, and a portion 111b formed of a material through which light can pass is formed as a light passage portion that is not a through hole. Further, the entire core member 11 is formed of a material through which light can pass, and a part thereof, specifically, the portion 111b that is aligned with the reading portion 6 when the core member 11 is mounted on the holding portion 2 may be used as the light passage portion. . In this case, the portion 111b to be formed as the light passage portion may be coated or may be uncoated.

The medicine packaging device may include a packaging unit 12, and further includes a printing unit that prints information on the medicine sealed in the packaging material 12. The medicine packaging device also uses the packaging material 12 of the foregoing embodiment. Printing tape for different sheets. The printing unit is an action unit that achieves the function of "printing" associated with the printing tape. In this case, the printing tape is wound around a core member different from the core member 11 of the above-described embodiment, and constitutes a drum body different from the drum body 1 of the above-described embodiment. Further, the sheet exhaustion detecting mechanism is constituted by a printing tape end detecting means.

Finally, the constitution and function of the foregoing embodiment (including the deformed form) are arranged. The packaging material end detecting means of the above-described embodiment includes the drum body 1 configured to wind the packaging material 12 around the tubular core member 11, and the drum body 1 is held in such a manner that the packaging material 12 is pulled out. The holding portion 2, the packaging material information portion 14 provided with the information on the packaging material 12 on the drum body 1, and the packaging material information portion 14 of the drum body 1 held by the holding portion 2 The reading unit 6 that is optically read and the detection unit 8 that has used the packaging material 12 in accordance with the reading result obtained by the reading unit 6, the core member 11 having light from the inside The light passage portions (through holes, through windows) 111 and 111b that are optically read by the reading unit 6 toward the outside, and the package information unit 14 corresponds to the light passage portion (through hole and through window). The position of 111 and 111b is held in the winding end portion of the core member 11 in the packaging material 12, and the detecting portion 8 holds the packaging material from the drum body 1 held by the holding portion 2. In the pull-out operation of pulling out 12, if the reading unit 6 is received, the aforementioned package material is read. The signal reading section 14 is detected, then the package material 12 as well, if the recipient can not read the signal is detected, then the package material 12 is used up.

According to the foregoing configuration, the drum body 1 is made of the packaging material 12 The coil is attached to the tubular core member 11. In the drum body 1, a packaging material information portion 14 on which information on the packaging material 12 is displayed is formed. The drum body 1 is a method of pulling out the packaging material 12, and is held by the holding portion 2. When the drum body 1 is held by the holding portion 2, the package information portion 14 of the drum body 1 is optically read by the reading portion 6.

The core member 11 is a light passage portion (through hole, through window) 111, 111b that optically reads the light from the inside to the outside through the reading portion 6, and the package information portion 14 is in the corresponding light passage portion. The positions of the through holes (through holes, through windows) 111 and 111b are held in the wrapping end portion of the core member 11 in the packaging material 12. Therefore, the reading unit 6 can read the packaging material information unit 14 before the eve of the use of the packaging material 12.

When the packaging material 12 is pulled out from the drum body 1, finally, the wound end portion of the packaging material 12 toward the core member 11 is also pulled out. Further, the packaging material information unit 14 is separated from the position corresponding to the light passing portions (through holes, through windows) 111 and 111b. In this case, the reading unit 6 cannot read the packaging material information unit 14.

In view of this, the detecting unit 8 receives the packaging material information unit 14 from the reading unit 6 when the drawing unit 8 pulls out the packaging material 12 from the drum body 1 held by the holding unit 2. If the read signal is detected, it is detected that there is a package material 12. If the read signal is not received, it is detected that the package material 12 has been used up. Thus, the detecting unit 8 can detect that the packaging material 12 has been used up, based on the fact that the reading unit 6 cannot read the packaging material information unit 14. In the invention of Patent Document 1, although the mechanical configuration of the "paper end detecting pin" is detected, according to the above configuration, it is not necessary to provide the detecting package 12 for use. The mechanical structure can be used as a packaging material exhaustion detecting mechanism that does not easily occur.

Further, the above embodiment is provided with a cylindrical core member 11 and a packaging material 12 wound around the core member 11, and the core member 11 is light having optical light that can be optically read from the inside to the outside. The packaging material information unit 14 that displays the information on the packaging material 12 is held at the position corresponding to the light passing portions (through holes, through windows) 111 and 111b, and the portions (through holes, through windows) 111 and 111b are held. In the drum body 1 of the aforementioned wrapping material 12 facing the winding end portion of the core member 11.

According to the above configuration, the drum body 1 is configured such that the packaging material 12 is wound around the tubular core member 11. In the drum body 1, a packaging material information portion 14 on which information on the packaging material 12 is displayed is formed. The core member 11 is a light passage portion (through hole, through window) 111, 111b that allows optical light to be optically read from the inside to the outside, and the package information portion 14 is in the corresponding light passage portion (through hole, through) The positions of the windows 111, 111b are held in the wrapping end portion of the core member 11 in the packaging material 12. Therefore, the package information portion 14 can be left before the eve of the use of the packaging material 12. When the packaging material 12 is pulled out from the drum body 1, finally, the winding end portion of the packaging material 12 toward the core member 11 is also pulled out, and the packaging material information portion 14 is from the corresponding light passage portion (through hole). The positions of the through windows) 111 and 111b are separated. Therefore, the package information unit 14 can also be used as the detection package 12 to be used up.

Further, the packaging material information unit 14 may be formed directly on the inner surface of the packaging material 12.

According to the foregoing configuration, the packaging material information portion 14 is shaped Since it is formed on the inner surface of the packaging material 12, the packaging material 12 can be surely read from the inside of the core member 11 even if it is opaque. Further, since the packaging material information portion 14 is formed directly on the packaging material 12, the manufacturing cost can be lowered as compared with the case where the packaging material information portion 14 is separately provided.

The packaging material 12 includes a packaging material main body 12a and a mounting portion 12b that is attached to a portion where the wrapping material main body 12a is wound up. The packaging material information portion 14 may be formed in the mounting portion 12b. .

According to the above configuration, the packaging material 12 has the packaging material main body 12a and the mounting portion 12b that is attached to the winding start portion of the packaging material main body 12a. The mounting portion 12b is formed with the packaging material information portion 14 . Therefore, when the packaging material information portion 14 is formed in the packaging material 12, the material or the like of the packaging material main body 12a is not limited. The mounting portion 12b can select a material or the like that can reliably form the packaging material information portion 14.

Further, in the core member 11, a through hole penetrating in the inner and outer directions may be formed as the light passage portion 111.

According to the above configuration, the through hole that penetrates in the inner and outer directions in the core member 11 is formed as the light passage portion 111. Therefore, the light passage portion 111 can be formed regardless of the material or the like of the core member 11.

Further, the method of the foregoing embodiment is a method of manufacturing the drum body in which the packaging material 12 is wound around the cylindrical core member 11 and the drum body 1 is manufactured, and includes the process of attaching the packaging material 12 to the core member 11; The previous process or the process of attaching the aforementioned wrapping material 12 to the aforementioned core member 11 In one process, a packaging material information portion 14 having information on the aforementioned packaging material 12 is formed on the packaging material 12; the core member 11 is light having optical light that can be optically read from the inside toward the outside. In the process of forming the packaging material information unit 14 in the packaging material 12, the packaging material information unit 14 can pass the light passage portion (through hole, the through hole, the through hole, the through hole, the through hole) The packaging material information portion 14 is formed in the packaging material 12 so that the position of the through-windows 111 and 111b is held by the drum body 1 of the wrapping member 12 toward the winding end portion of the core member 11.

According to the above configuration, the tubular core member 11 is a light passage portion (through hole, through window) 111, 111b that allows optical light to be optically read from the inside to the outside. Further, in the packaging material 12 wound around the core member 11, a packaging material information portion 14 on which information on the packaging material 12 is displayed is formed at positions corresponding to the light passing portions (through holes, through windows) 111 and 111b. Therefore, the drum body 1 manufactured by this method can optically read the packaging material information portion 14 before the package material 12 is used up. Further, when the packaging material 12 is pulled out from the drum body 1, finally, the packaging material information portion 14 is separated from the position corresponding to the light passing portions (through holes, through windows) 111, 111b. In this case, the package information unit 14 cannot be optically read. According to this, it can be detected that the packaging material 12 has been used up.

Further, in the method of the foregoing embodiment, the process of forming the packaging material information portion 14 on the packaging material 12 is carried out by a process in which the packaging material 12 is wound around the core member 11, and the packaging material is used. In the process of attaching the 12-volume to the core member 11, the aforementioned packaging material information portion 14, The package material 12 is wound around the winding end portion of the core member 11 at a position corresponding to the light passage portions (through holes, through windows) 111 and 111b. The aforementioned core member 11.

According to the above configuration, the tubular core member 11 is a light passage portion (through hole, through window) 111, 111b that allows optical light to be optically read from the inside to the outside. When the drum body 1 is manufactured, first, the packaging material information portion 14 is formed in the packaging material 12. Thereafter, the packaging material information unit 14 holds the packaging material 12 so as to be held in the wrapping end portion of the core member 11 at the position corresponding to the light passing portions (through holes, through windows) 111 and 111b. The coil is attached to the core member 11. Therefore, compared with the case where the packaging material 12 is wound on the inner surface of the packaging material 12 after the packaging material 12 is wound around the core member 11, the forming operation of the packaging material information portion 14 for the packaging material 12 can be facilitated. .

Further, in the method of the above-described embodiment, the light passage portion is a through hole 111 that penetrates the core member 11 in the inner and outer directions, and the package material information portion 14 is formed in the packaging material 12 by the packaging material 12 The latter process of the process of attaching the core member 11 to the core member 11 is performed, and in the process, the package material information portion 14 is formed in the package member 12 toward the core member at a position corresponding to the through hole 111. The end of the 11 is attached to the end.

According to the above configuration, the tubular core member 11 is formed with a through hole 111 penetrating in the inner and outer directions. When the drum body 1 is manufactured, first, the packaging material 12 is wound around the core member 11. Thereafter, the packaging material information portion 14 is formed in the core 12 at the position corresponding to the through hole. The crimped end of the member 11. Therefore, the work of wrapping the packaging material 12 to the core member 11 can be facilitated.

When the packaging material information unit 14 is formed in advance on the packaging material 12 and the packaging material 12 is wound around the core member 11, it is necessary to position the packaging material information portion 14 in the through hole 111 of the core member 11. In the above configuration, since the packaging material information portion 14 and the through hole 111 of the core member 11 do not need to be aligned, the work of wrapping the packaging material 12 on the core member 11 can be facilitated.

According to the above configuration, since it is not necessary to provide a configuration in which the packaging material 12 has been used up for the detection, it is possible to cause the packaging material end detecting means that the failure does not easily occur. Therefore, it is possible to easily detect the package material 12 after it has been used without using a mechanical configuration.

2‧‧‧ Keeping Department

6‧‧‧Reading Department

11‧‧‧ core components

12‧‧‧Sheet and packaging materials

14‧‧‧Sheet Information Department, Packaging Materials Information Department

111‧‧‧Light passage, through hole, through window

Claims (8)

A sheet material end detecting means includes: a drum body configured to wind a sheet material around a tubular core member; and a holding portion for holding the drum body so as to pull out the sheet material, and a sheet information unit that displays information on the sheet material, and a reading unit that optically reads the sheet information unit of the drum body held by the holding unit, and The detection result obtained by the reading unit detects a detection unit that has run out of the sheet material, and the core member is a light passage portion that has optical light that can be optically read by the reading unit from the inside toward the outside. The sheet information unit is a winding end portion of the core member that is held in the sheet material at a position corresponding to the light passage portion, and the detecting portion is in the drum body held by the holding portion. When the reading operation is performed by the reading unit reading the reading signal of the sheet information unit, the sheet is detected to be in the pull-out operation of the sheet material, and the sheet is not detected. If read signal is detected as the sheet material has been exhausted. A drum body comprising: a cylindrical core member and a sheet member wound around the core member, wherein the core member has light that can pass through from the inside toward the outside In the optically-transparent light-passing portion, the sheet information portion that displays information on the sheet material is a winding end portion of the core member that is held in the sheet material at a position corresponding to the light-passing portion. The drum body of claim 2, wherein the sheet material information portion is formed directly on an inner surface of the sheet material. In the drum body of the second aspect of the invention, the sheet material includes a sheet body and a mounting portion that is attached to a portion where the sheet body is wound up, and the sheet information portion is formed. In the aforementioned installation department. In the drum body of the second aspect of the invention, the through hole that penetrates in the inner and outer directions is formed as the light passage portion. A method of manufacturing a drum body, which is a method of manufacturing a drum body in which a sheet material is wound around a cylindrical core member to manufacture a drum body, comprising: a process of winding the sheet material to the core member; and a process in which the material roll is attached to the foregoing core member or a process in which the sheet material information portion of the sheet material is displayed, and the core member is formed in the sheet material; the core member has light. a light passage portion that optically reads from the inside toward the outside, in the process of forming the sheet information portion in the sheet material, The sheet information unit is formed in the sheet material so as to be held by the sheet body of the sheet member toward the winding end portion of the core member at a position corresponding to the light passage portion. . The method of manufacturing a drum body according to claim 6, wherein the process of forming the sheet information portion on the sheet material is carried out by a process in which the sheet material is wound around the core member. In the process of attaching the sheet material to the core member, the sheet material information portion is held in a position facing the winding end portion of the core member in the sheet material at a position corresponding to the light passage portion. The aforementioned sheet material is wound around the core member. The method of manufacturing a roller body according to the sixth aspect of the invention, wherein the light passage portion is a through hole penetrating the core member in an inner and outer direction, and the sheet material information portion is formed in the sheet material. The latter process of the process of attaching the sheet material to the core member is performed, and in the process, the sheet material information portion is formed in the sheet material toward the core member at a position corresponding to the through hole. The end of the roll is attached.