TW201702165A - 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, wherein a forming part 13 adheres to an outer surface of the core member 11 and an inner surface of the sheet material 12, the sheet material information part 14 is formed at a part of the forming part 13, which corresponds to the light passing part 111, an adhesive force between the sheet material 12 and the forming part 13 is larger than an adhesive force between the core member 11 and the forming part 13; 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 for holding 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 detecting, by the reading result obtained by the reading unit, the detecting unit that has run out of the sheet material, wherein the core member has optical light that can be optically read by the reading unit from the inside toward the outside. In the light passing portion, the drum body has a forming portion for forming the sheet information portion between the outer surface of the core member and the inner surface of the sheet member, and the sheet information portion is formed in the form a portion of the portion corresponding to the light passage portion, wherein the forming portion is adhered to the core member and the sheet member, and the sheet material and The adhesion between the forming portions is larger than the adhesion between the core member and the forming portion, and the detecting portion pulls the sheet material from the drum body held by the holding portion. In the pull-out operation, if the reading signal of the sheet information unit is read by the reading unit, the sheet material is detected as the sheet material, and if the reading signal is not received, the sheet is detected as the sheet. The material has been used up.

Further, the drum body of the present invention includes a cylindrical core member, a sheet member wound around the core member, and an outer surface of the core member and an inner surface of the sheet member for display. In the forming portion for the sheet information portion of the sheet material, the core member is a light passing portion that optically reads light from the inside to the outside, and the sheet information portion is formed in the forming portion. a portion corresponding to the light passage portion, wherein the forming portion is adhered to the core member and the sheet member, and an adhesion between the sheet member and the forming portion is between the core member and the forming portion. More adhesion.

Further, the method for producing 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 cylindrical core member to produce a drum body, and the core member is optically read from the inside toward the outside. a sheet passing information portion for displaying information on the sheet material, and a method of manufacturing the drum body, comprising: a process of forming a forming portion for forming the sheet information portion; and making the sheet material information a portion in which the forming portion is attached to the outer surface of the core member in a manner corresponding to the light passing portion, and a bonding portion having a larger adhesion than the core member and the forming portion, and attaching the forming portion Winding of the aforementioned sheet The process of the initial portion; and the process of attaching the aforementioned sheet material to the aforementioned core member.

1‧‧‧Drum body

11‧‧‧ core components

111‧‧‧Light passage, through window

112‧‧‧ inside

12‧‧‧Sheet and packaging materials

13‧‧‧Forming section, sheet section

13a‧‧‧ inside

13b‧‧‧ outside

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

2‧‧‧ Keeping Department

3‧‧‧ Half-folding mechanism

4‧‧‧ hopper

5‧‧‧Action department, sealing department

6‧‧‧Reading Department

7‧‧‧Control Department

8‧‧‧Detection Department

[Fig. 1] A perspective view of a mechanism for packaging a medicine using a drum body according to an embodiment of the present invention as a simple one.

[Fig. 2] A perspective view showing an appearance of a drum body showing a drum body according to an embodiment of the present invention.

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

[Fig. 3] A side view showing a sheet portion of an embodiment of the present invention.

[Fig. 3B] A bottom view showing a sheet portion according to an embodiment of the present invention.

[Fig. 4] A schematic view showing a manufacturing procedure of a drum body according to an embodiment of the present invention from an axial direction. Moreover, the sheet portion in the drawing is displayed in an exaggerated thickness direction.

[Fig. 4] Fig. 4 is a schematic view showing a manufacturing procedure of a drum body according to an embodiment of the present invention from an axial direction. Moreover, the sheet portion in the drawing is displayed in an exaggerated thickness direction.

[Fig. 4C] A schematic view showing a manufacturing procedure of a drum body according to an embodiment of the present invention from an axial direction. Moreover, the sheet portion in the drawing is displayed in an exaggerated thickness direction.

[Fig. 5] A schematic perspective view showing the relationship between the drum body and the holding portion of the medicine packaging device according to the embodiment of the present invention.

[Fig. 5B] A schematic perspective view showing a portion where the packaging material is separated from the core member.

For the present invention, an embodiment will be described below.

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 sealing portion 5 for sealing the medicine that has been introduced into the packaging material 12 through the hopper 4 into the packaging material 12 and the control portion 7 that controls the sealing portion 5 are provided.

The holding portion 2 has a shaft portion 21 as shown in Fig. 5A. 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. Stereogram. The drum body 1 includes a core member 11 and a packaging material 12 that is wound around the core member 11, and an outer surface of the core member 11 and an inner surface of the packaging material 12 as a packaging material information portion 14 to be described later. The sheet portion 13 of the formed portion.

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 is a light passage portion that has optical light that can be optically read by a reading unit 6 to be described later, from the inside to the outside. 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. The through window 111 is, for example, long in the radial direction. Square shape or square shape. 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. The information about the packaging material 12 is, for example, information relating to traceability, 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 department 14 is to make the plural elements physical (optical or It is visually integrated into one. 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. 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.

3A and 3B are views for explaining a sheet portion, FIG. 3A is a side view, and FIG. 3B is a bottom view. Between the outer surface of the core member 11 and the inner surface of the packaging material 12, a sheet portion 13 as a forming portion for forming the packaging material information portion 14 is provided.

The sheet portion 13 is adhered (adhered, adhered, etc.) to the core member 11 and the packaging material 12. At this time, the adhesion between the packaging material 12 and the sheet portion 13 is greater than the adhesion between the core member 11 and the sheet portion 13. In other words, when the sheet portion 13 is attached, the adhesion between the packaging material 12 and the outer surface 13b of the sheet portion 13 is formed to be larger than the adhesion between the core member 11 and the inner surface 13a of the sheet portion 13. The difference in the adhesion between the inner surface 13a and the outer surface 13b of the sheet portion 13 is, for example, the type, concentration, amount of application, or application of the adhesion means (adhesive, adhesive, etc.) for exerting the adhesion. The density and the reaction time for exerting the adhesion can be realized by making the inner and outer surfaces 13a and 13b different.

The packaging material information portion 14 is a portion formed in the through window 111 in the corresponding sheet portion 13. Specifically, the packaging material information unit 14 is formed on the inner surface 13a of the sheet portion 13 (the inner surface when the core member 11 is attached) as shown in FIG. 2B and FIG. 3B. Corresponding through window A portion of 111 (particularly, when viewed from the inside of the core member 11, the portion of the packaging material information portion 14 is seen through the through window 111).

4A to 4C are views for explaining a manufacturing procedure of the drum body 1. When the drum body 1 is manufactured, the packaging material information portion 14 is first formed on the sheet portion 13 by printing. Thereafter, as shown in Fig. 4B, the sheet portion 13 on which the packaging material information portion 14 is formed is attached to the outside of the core member 11 (Fig. 4A). At this time, the packaging material information portion 14 is a method corresponding to the through window 111, and the sheet portion 13 is attached to the outer surface of the core member 11. Next, as shown in FIG. 4C, the packaging material 12 is wound around the core member 11. At this time, the sheet portion 13 (outer surface 13b) is attached to the portion where the wrapping of the packaging material 12 is started by the adhesion force larger than the adhesion between the core member 11 and the sheet portion 13 (inner surface 13a).

When the method of manufacturing the drum body 1 is carried out in accordance with the above-described process, the forming operation of the packaging material information portion 14 for the sheet portion 13 can be facilitated, and the position of the packaging material information portion 14 and the through window 111 can be facilitated for the cooperation. . Further, the packaging material 12 can be temporarily fixed to the core member 11, and the packaging material 12 can be smoothly wound around the core member 11.

Fig. 5A 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, it is provided to be held thereby The reading unit 6 that is optically read by the packaging material information portion 14 of the drum body 1 held by the portion 2 is held. 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 by the temperature corresponding to the kind 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 receives the packaging material information from the reading unit 6 when the drawing unit 6 pulls out the packaging material 12 from the drum body 1 held by the holding unit 2 . When the signal is read, it is detected that there is a package material 12. 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 is borrowed The package material 12 is thermocompression-bonded by the thermocompression temperature set by the control unit 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. 5(B) is a schematic perspective view showing the portion where the packaging material 12 is separated 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. The adhesion between the packaging material 12 and the sheet portion 13 is greater than the adhesion between the core member 11 and the sheet portion 13. Therefore, as shown in Fig. 5(B), the sheet portion 13 on which the packaging material information portion 14 is formed is separated from the core member 11 together with the packaging material 12. Further, 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 packaging material end detecting means is constituted by the drum body 1, the holding portion 2, the packaging material information portion 14, the reading portion 6, and the detecting portion 8.

As described above according to the present embodiment, the drum body 1 is located between the outer surface of the core member 11 and the inner surface of the packaging material 12. Since the drum body 1 has the sheet portion 13 for forming the packaging material information portion 14, the packaging material information portion 14 is formed in a portion corresponding to the through window 111 in the sheet portion 13. 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.

The sheet portion 13 is adhered to the core member 11 and the packaging material 12. Thus, since the sheet portion 13 is also attached to the core member 11, it is possible The position of the through window 111 and the sheet portion 13 of the core member 11 is facilitated for the cooperation.

Further, the adhesion between the packaging material 12 and the sheet portion 13 is greater than the adhesion between the core member 11 and the sheet portion 13. Therefore, when the packaging material 12 is pulled out from the drum body 1, finally, the sheet portion 13 on which the packaging material information portion 14 is formed is separated from the core member 11 together with the packaging material 12. 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 is received by the reading unit 6 and read into the packaging material information unit 14 during the pulling operation of pulling out the packaging material 12 from the drum body 1 held by the holding unit 2. When the signal is read, it is detected that there is a package material 12. Further, if the detecting unit 8 cannot receive the read signal, it detects that the packaging 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 of a machine for detecting the exhaustion of the packaging material 12 (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.

The embodiment of the present invention has been described above, but the present invention is not limited to the above-described 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 information unit 14 may use a code other than the two-dimensional code. The package information unit 14 may be, for example, a barcode (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.

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.

Further, in the core member 11, it is not always necessary to provide the through hole, that is, the through window 111, as in the foregoing embodiment. For example, the material through which light can pass and the material in which light is interrupted form the core member 11 integrally formed, which will be light-receivable The portion formed by the passing material may be formed as a light passing portion. Further, the entire core member 11 is formed of a material through which light can pass, and a part thereof, specifically, the core member 11 is a light-passing portion when the portion to be aligned with the reading portion 6 is attached to the holding portion 2. In this case, the portion to be formed as the light-passing 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 drug packaging device also uses a printing tape of a sheet material different from the packaging material 12 of the foregoing embodiment. 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 a light passage portion (through window 111) optically read by the reading unit 6 toward the outside, the drum body 1 having the core A sheet portion 13 for forming the packaging material information portion 14 is formed between the outer surface of the member 11 and the inner surface of the packaging material 12, and the packaging material information portion 14 is formed in the sheet portion 13 corresponding to the light passage portion ( In the portion of the through window 111), the sheet portion 13 is adhered to the core member 11 and the package member 12, and the adhesion between the package member 12 and the sheet portion 13 is higher than that of the core member 11 and the sheet. The adhesion between the portions 13 is larger, and the detecting portion 8 receives the reading in the pull-out operation of pulling out the packaging material 12 from the drum body 1 held by the holding portion 2. When the reading signal of the packaging material information unit 14 is read, the portion 6 detects that the packaging material 12 is still present. If the reading signal is not received, it is detected that the packaging material 12 has been used up.

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 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 window 111) having optical light that can be optically read by the reading unit 6 from the inside toward the outside. The drum body 1 has a sheet portion 13 for forming a packaging material information portion 14 between the outer surface of the core member 11 and the inner surface of the packaging material 12, and the corresponding light passage portion (through window 111) in the sheet portion 13 The portion of the package material information portion 14 is formed. Therefore, the reading unit 6 can read the packaging material information unit 14 before the eve of the use of the packaging material 12.

The sheet portion 13 is adhered to the core member 11 and the packaging material 12. Since the sheet portion 13 is also adhered to the core member 11 in this manner, the position of the light passage portion (the through window 111) of the core member 11 and the position of the sheet portion 13 can be facilitated for the cooperation.

Further, since the adhesion between the packaging material 12 and the sheet portion 13 is greater than the adhesion between the core member 11 and the sheet portion 13, when the packaging material 12 is pulled out from the drum body 1, finally, a package is formed. The sheet portion 13 of the material information portion 14 is separated from the core member 11 together with the packaging material 12. Further, the packaging material information unit 14 is separated from the position corresponding to the light passing portion (through window 111). Therefore, 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, according to the fact that the reading unit 6 cannot read the information display unit. In the invention of Patent Document 1, although the mechanical configuration of the "paper end detection pin" is detected, according to the above configuration, it is not necessary to provide a mechanism for detecting that the packaging material 12 has been used up, and it may become a malfunction. The inspection material that is not easy to occur is used up.

Further, the drum body 1 of the above embodiment includes a cylindrical core member 11 and a packaging material 12 to which the core member 11 is wound, and an outer surface of the core member 11 and an inner surface of the packaging material 12. A sheet portion 13 for forming a packaging material information portion 14 for displaying information on the aforementioned packaging material 12, the core member 11 having light passing through from the inside toward the outside In the light passage portion (through window 111) for optical reading, the packaging material information portion 14 is formed in a portion corresponding to the light passage portion (through window 111) of the sheet portion 13, and the sheet portion 13 is Adhered to the core member 11 and the packaging material 12, the adhesion between the packaging material 12 and the sheet portion 13 is greater than the adhesion between the core member 11 and the sheet portion 13.

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. The drum body 1 is provided with a sheet portion 13 for forming a packaging material information portion 14 for displaying information on the packaging material 12. The core member 11 is a light passage portion (through window 111) having optical light that can be optically read from the inside to the outside. The sheet portion 13 is located between the outer surface of the core member 11 and the inner surface of the packaging material 12, and the packaging material information portion 14 is formed in a portion of the sheet portion 13 corresponding to the light passing portion (through window 111). Therefore, the package information portion 14 can be left before the eve of the use of the packaging material 12.

The sheet portion 13 is adhered to the core member 11 and the packaging material 12. Since the sheet portion 13 is also adhered to the core member 11 in this manner, the position of the light passage portion (the through window 111) of the core member 11 and the position of the sheet portion 13 can be facilitated for the cooperation.

Further, the adhesion between the packaging material 12 and the sheet portion 13 is greater than the adhesion between the core member 11 and the sheet portion 13. Therefore, when the packaging material 12 is pulled out from the drum body 1, finally, the sheet portion 13 on which the packaging material information portion 14 is formed is separated from the core member 11 together with the packaging material 12. Further, the packaging material information unit 14 is separated from the position corresponding to the light passing portion (through window 111). Therefore, the package information unit 14 can also be used as the detection package 12 to be used up.

Further, the method of manufacturing the drum body of the above-described embodiment is a method of manufacturing the drum body 1 in which the packaging material 12 is wound around the cylindrical core member 11 to manufacture the drum body 1. The core member 11 has light from the inside. a light passage portion (through window 111) that optically reads externally, the method of manufacturing the drum body includes: a packaging material information portion 14 that displays information on the packaging material 12, and is formed to form the packaging material a process of attaching the sheet portion 13 to the outer surface of the core member 11 so that the package material information portion 14 corresponds to the light passage portion (through window 111); and a process of attaching the sheet portion 13 to a portion where the wrapping of the packaging material 12 is started by adhesion with a greater adhesion than the core member 11 and the sheet portion 13; and attaching the packaging material 12 In the aforementioned core member 11 process.

According to the above configuration, the cylindrical core member 11 is a light passage portion (through window 111) that allows 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 on which the information on the packaging material 12 wound around the core member 11 is displayed is formed on the sheet portion 13 for forming the packaging material information portion 14. Thereafter, the package material information portion 14 is attached to the outer surface of the core member 11 so that the package material information portion 14 corresponds to the light passage portion (through window 111). Therefore, the forming operation of the packaging material information portion 14 of the sheet portion 13 can be facilitated, and the position of the packaging material information portion 14 and the light passing portion (through window 111) can be facilitated for the cooperation. And the adhesion between the core member 11 and the sheet portion 13 is larger The adhesion of the sheet portion 13 is attached to the portion where the wrapping of the packaging material 12 is started. Thereafter, the wrapping material 12 is wound around the core member 11. Therefore, the packaging material 12 can be temporarily fixed to the core member 11, and the packaging material 12 can be smoothly wound around the core member 11.

As described above, in 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, packaging materials

13‧‧‧ forming department, thin section

14‧‧‧Sheet Information Department, Packaging Information Department

111‧‧‧Light passage, through window

Claims (3)

A sheet material end detecting means comprising: a drum body configured to wind a sheet material around a tubular core member; and a holding portion for holding the drum body, wherein the sheet member is pulled out; 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; 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 unit that optically reads the light from the inside to the outside through the reading unit. The drum body has a forming portion for forming the sheet information portion between the outer surface of the core member and the inner surface of the sheet member, and the sheet information portion is formed in the forming portion. a portion of the light passing portion, wherein the forming portion is adhered to the core member and the sheet member, and an adhesive force between the sheet member and the forming portion is higher than the core member The adhesion between the forming portions is larger, and the detecting portion reads the reading portion when the drawing is pulled out from the drum body held by the holding portion. When the read signal of the sheet information section is detected, it is detected as before. If the sheet material cannot be received by the read signal, it is detected that the sheet has been used up. A drum body comprising: a cylindrical core member; and a sheet member wound around the core member; and an outer surface of the core member and an inner surface of the sheet member for forming information indicating the sheet member In the forming portion for the sheet information portion, the core member is a light passing portion that optically reads light from the inside to the outside, and the sheet information portion is the light that is formed in the forming portion. In the portion of the passage portion, the forming portion is adhered to the core member and the sheet member, and adhesion between the sheet member and the forming portion is greater than adhesion between the core member and the forming portion. . A method of manufacturing a drum body is a method of manufacturing a drum body in which a sheet material is wound around a cylindrical core member to produce a drum body, and the core member is light having optical light that can be optically read from the inside toward the outside. The manufacturing method of the roller body includes a sheet material information portion for displaying information on the sheet material, a process for forming a forming portion for forming the sheet material information portion, and a sheet material information portion a process of attaching the forming portion to the outer surface of the core member in a manner corresponding to the light passing portion; and a process of attaching the forming portion to a portion where the winding of the sheet is started by an adhesion force greater than an adhesion between the core member and the forming portion; and attaching the sheet to the core member process.