WO2016163442A1

WO2016163442A1 - Sheet material depletion detection mechanism, roll, and roll production method

Info

Publication number: WO2016163442A1
Application number: PCT/JP2016/061353
Authority: WO
Inventors: 祥広山本
Original assignee: 株式会社タカゾノテクノロジー
Priority date: 2015-04-09
Filing date: 2016-04-07
Publication date: 2016-10-13
Also published as: TW201702166A; KR20170134327A; JP2016199350A; EP3281900A1; EP3281900A4; CN107531437A; AU2016246939A1; US20180093844A1; HK1244769A1; CA2981788A1

Abstract

A sheet material depletion detection mechanism that is provided with: a sheet material information part that indicates information related to a sheet material that is wound onto a core member in which a light transmission part is formed; a reading part that optically reads the sheet material information part; and a detection part that detects when the sheet material has been depleted. The sheet material has an end part that is wound onto the core member, and the sheet material information part is held at the end part at a position that corresponds to the light transmission part. During a draw-out operation in which the sheet material is drawn out, the detection part detects that there is sheet material when a reading signal that indicates that the reading part has read the sheet material information part is received and detects that the sheet material has been depleted when the reading signal is no longer received.

Description

Sheet material breakage detection mechanism, roll body, and roll body manufacturing method

Cross-reference of related applications

This application claims priority based on Japanese Patent Application No. 2015-080167, and is incorporated herein by reference.

The present invention relates to a sheet material breakage detection mechanism, a roll body, and a roll body manufacturing method used in, for example, a sheet using device that is used by pulling out a sheet material from a roll body.

Some medicine packaging devices, which are examples of sheet-using devices, acquire information on sheet materials and operate based on this information. Information about the sheet material is provided in a core member around which the sheet material is wound (see, for example, Patent Document 1).

Conventionally, in the medicine packaging apparatus, a configuration for detecting that the sheet material has been used up is provided separately from the configuration for acquiring information on the sheet material. The invention described in Patent Document 1 has a mechanical configuration using a “paper breakage detection pin”. If such a mechanical configuration is provided separately, failure may occur due to wear of parts or the like.

Japanese Unexamined Patent Publication No. 2009-227469

Therefore, an object of the present invention is to provide a sheet material breakage detection mechanism, a roll body, and a roll body manufacturing method that can easily detect that the sheet material has been used up.

The present invention provides a roll body configured by winding a sheet material around a cylindrical core member, a holding unit that holds the roll body so that the sheet material can be pulled out, and the roll body, A sheet material information section indicating information relating to the material, a reading section for optically reading the sheet material information section of the roll body held by the holding section, and the sheet material based on a reading result by the reading section. The core member has a light passage portion through which light passes so that optical reading by the reading portion can be performed from the inside toward the outside, The sheet material information part is held at a position corresponding to the light passage part, at a winding end of the sheet material around the core member, and the detection part is the roll body held by the holding part. During the pulling-out operation of pulling out the sheet material, the reading unit detects that the sheet material is present when it receives a reading signal obtained by reading the sheet material information unit, and the sheet material disappears when the reading signal is not received. This is a sheet material breakage detection mechanism configured to detect that the sheet material is detected.

And this invention is provided with the cylindrical core member and the sheet material wound around the said core member, and the said core member passes light so that optical reading is possible toward the exterior from the inside. A roll body that has a light passage portion to be held and a sheet material information portion that indicates information on the sheet material is held at a winding end portion around the core member in the sheet material at a position corresponding to the light passage portion. is there.

The sheet material information part can be directly formed on the inner surface of the sheet material.

And the said sheet material has a sheet material main body and the attaching part attached to the part of the winding start of this sheet material main body, The said sheet material information part shall be formed in the said attaching part. .

The core member may be formed with a through-hole penetrating inward and outward as the light passage portion.

And this invention is a manufacturing method of the roll body which winds a sheet material around a cylindrical core member, and manufactures a roll body, Comprising: The process which winds the said sheet material around the said core member, The said sheet material on the said core member A step of forming a sheet material information portion indicating information on the sheet material on the sheet material as a previous step or a subsequent step of the winding step, and the core member is optically directed from the inside toward the outside In the step of forming the sheet material information portion on the sheet material, the sheet material information portion corresponds to the light passage portion. It is the manufacturing method of the roll body which forms the said sheet material information part in the said sheet material so that the roll body hold | maintained in the position at the winding edge part to the said core member in the said sheet material may be obtained.

And, in the present invention, the step of forming the sheet material information portion on the sheet material is performed as a step before the step of winding the sheet material around the core member, and in the step of winding the sheet material around the core member, Manufacture of a roll body that winds the sheet material around the core member such that the sheet material information portion is held at a winding end of the sheet material around the core member at a position corresponding to the light passage portion. Is the method.

In the present invention, the step of forming the sheet material information portion in the sheet material is a step of winding the sheet material around the core member, wherein the light passage portion is a through-hole penetrating the core member inward and outward. In this process, the sheet material information portion is formed at a position corresponding to the through hole at a winding end portion of the sheet material around the core member. .

FIG. 1 is a perspective view simply showing a mechanism for packaging a medicine using a roll body according to the first embodiment of the present invention. FIG. 2A is a perspective view showing the roll body according to the first embodiment of the present invention and showing the appearance of the roll body. FIG. 2B is an enlarged perspective view of a main part showing the roll body according to the first embodiment of the present invention and showing a radial cross section of the roll body. FIG. 2C is a schematic cross-sectional view showing the configuration of the roll body according to the first embodiment of the present invention. FIG. 3 is a schematic perspective view showing the relationship between the roll body and the holding part of the medicine packaging device according to the first embodiment of the present invention. FIG. 4 is a schematic perspective view showing a state where the packaging material is detached from the core member in the roll body according to the first embodiment of the present invention. FIG. 5 is a schematic cross-sectional view showing the configuration of the roll body according to the second embodiment of the present invention. FIG. 6 is a diagram for explaining a modified example of the packaging material. FIG. 7 is a schematic cross-sectional view showing a modification of the core member.

The present invention will be described below mainly by taking two embodiments.

-First embodiment-
FIG. 1 is a view showing a peripheral portion of a roll body 1 in a medicine packaging apparatus provided with a packaging material breakage detection mechanism. The roll body 1 is configured by winding a wrapping material 12, which is a long sheet material, around a core member 11. The medicine packaging apparatus which is a sheet using device draws the packaging material 12 from the roll body 1 and uses it. The medicine packaging device is used for packaging a solid medicine.

The medicine packaging apparatus is configured to hold the roll body 1 so that the packaging material 12 can be drawn out, and a hopper for putting the medicine into the packaging material 12 drawn from the roll body 1 held by the holding part 2. 4, a sealing part 5 for sealing the medicine put into the packaging material 12 via the hopper 4 in the packaging material 12, and a control unit 7 for controlling the sealing part 5.

The holding part 2 has a shaft part 21 as shown in FIG. The shaft portion 21 is provided to be rotatable around the axis of the shaft portion 21. The core member 11 of the roll body 1 is fitted on the shaft portion 21 of the holding portion 2.

A half-folding mechanism 3 is provided between the holding unit 2 and the hopper 4. The half-folding mechanism 3 folds the packaging material 12 drawn from the roll body 1 in half in the width direction. A hopper 4 is inserted into the half-folded portion of the packaging material 12 as shown in FIG.

The sealing part 5 functions as an action part that acts on the packaging material 12 drawn from the roll body 1 held by the holding part 2. The sealing part 5 seals the medicine in the packaging material 12 in a half-folded state by thermocompression bonding of the packaging material 12. That is, the action of the sealing part 5 as the action part is exerted in relation to the packaging material 12 and is sealing of the packaging material 12 by thermocompression bonding.

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

The core member 11 has a cylindrical shape, and is cylindrical in this 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 resin. The core member 11 can be formed of various materials as long as the core member 11 can be formed so as to have a shape retaining property around which the packaging material 12 can be wound.

The core member 11 has a light passage part through which light passes so that optical reading by a reading part 6 described later can be performed from the inside toward the outside. In the present embodiment, the core member 11 is formed with a through window 111 as a light passage portion. 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 so as to penetrate the core member 11 in the inner and outer directions, that is, in the radial direction of the core member 11. Therefore, the light passage part can be formed regardless of the material of the core member 11 and the like. The through window 111 has, for example, a rectangular shape or a square shape when viewed in the radial direction. However, the shape of the through window 111 is not limited to a rectangle or a square, but may be various shapes such as a circle or a polygon. As illustrated in FIG. 2B, the through window 111 is formed in a portion near one end of the core member 11 in the axial direction.

The through window 111 is desirably formed as small as possible compared to the total area of the inner surface 112 (see 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, the portion corresponding to the through window 111 in the packaging material 12 wound around the core member 11 can be made less likely to have a dent as the area of the through window 111 is reduced. Therefore, it is possible to reduce the occurrence of wrinkles on the packaging material 12 or the trace of the through window 111.

However, the through window 111 of the present embodiment needs to have an area larger than the area of the packaging material information portion 14 so that a packaging material information portion 14 which will be described later as a sheet material information portion is not hidden by the core member 11.

The roll body 1 is formed with a packaging material information section 14 indicating information on the packaging material 12. Examples of the information related to the packaging material 12 include the type (for example, material and thickness) of the packaging material 12. Examples of the information related to the packaging material 12 include information related to traceability, for example, a manufacturing lot number of the packaging material 12 and information on a manufacturing site.

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

The packaging material information unit 14 is a plurality of elements physically (optically or visually) combined into one. The packaging material information unit 14 indicates information related to the packaging material 12 as a whole of the packaging material information unit 14 (that is, a group of the plurality of elements). In other words, the packaging material information unit 14 cannot indicate information related to the packaging material 12 if a part of the packaging material information unit 14 (that is, one or more elements among the plurality of elements) is missing. . The packaging material information unit 14 codes information related to the packaging material 12. In the present embodiment, a two-dimensional code (“QR code” (registered trademark in Japan)) is used as the packaging material information unit 14. Therefore, general-purpose means can be used as the reading unit 6 described later.

The packaging material information unit 14 is held at a position corresponding to the through window 111 at a winding end portion of the packaging material 12 around the core member 11. In other words, the packaging material information unit 14 is formed at a portion corresponding to the through window 111 at the end of the packaging material 12 that is wound around the core member 11. In the present embodiment, the packaging material information unit 14 is formed directly on the inner surface of the packaging material 12. Since the packaging material information portion 14 is formed on the inner surface of the packaging material 12, the packaging material information portion 14 can be reliably read from the inside of the core member 11 even if the packaging material 12 is opaque. Moreover, since the packaging material information part 14 is directly formed in the packaging material 12, a manufacturing cost can be reduced compared with the case where the member for forming the packaging material information part 14 is provided separately.

As an example, when the roll body 1 is manufactured, the packaging material 12 is first wound around the core member 11. Thereafter, the packaging material information unit 14 is formed by printing. At this time, the packaging material information part 14 is formed at a position corresponding to the through window 111 at the winding end of the packaging material 12 around the core member 11. In other words, the packaging material information unit 14 is formed at a portion corresponding to the through window 111 at the end of the packaging material 12 that is wound around the core member 11.

According to the manufacturing method of the roll body 1 by these processes, the winding work of the packaging material 12 around the core member 11 can be facilitated. When the packaging material information portion 14 is formed on the packaging material 12 in advance and the packaging material 12 is wound around the core member 11, the packaging material information portion 14 needs to be aligned with the through window 111 of the core member 11. On the other hand, the method for manufacturing the roll body 1 according to the present embodiment does not require alignment between the packaging material information unit 14 and the through window 111 of the core member 11, and therefore the winding operation of the packaging material 12 around the core member 11. Can be facilitated.

As another example, when manufacturing the roll body 1, the packaging material information part 14 is first formed on the packaging material 12 by printing. Thereafter, the packaging material 12 is wound around the core member 11 so that the packaging material information portion 14 is held at a winding end portion of the packaging material 12 around the core member 11 at a position corresponding to the through window 111.

According to the manufacturing method of the roll body 1 by these processes, the packaging material 12 is wrapped around the packaging material 12 as compared with the case where the packaging material information portion 14 is formed on the inner surface of the packaging material 12 after the packaging material 12 is wound around the core member 11. The work of forming the material information unit 14 can be facilitated.

Thus, the process of forming the packaging material information part 14 on the packaging material 12 can be performed as a previous process or a subsequent process of the process of winding the packaging material 12 around the core member 11.

FIG. 3 is a schematic perspective view showing the relationship between the roll body 1 and the holding unit 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 roll body 1 is externally fitted to the shaft portion 21, the engaging portion of the shaft portion 21 is engaged with the engaged portion of the core member 11. Accordingly, the core member 11 rotates together with the shaft portion 21.

The shaft portion 21 of the holding unit 2 is provided with a reading unit 6 that optically reads the packaging material information unit 14 of the roll body 1 held by the holding unit 2. The reading unit 6 is disposed inside the core member 11 of the roll body 1 held by the holding unit 2 and is provided so as to correspond to the packaging material information unit 14 of the roll body 1.

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

The control unit 7 sets the temperature of thermocompression bonding by the sealing unit 5 based on the reading result by the reading unit 6. Accordingly, the packaging material 12 can be thermocompression bonded at a temperature corresponding to the type of the packaging material 12. The detection unit 8 detects that the packaging material 12 has been used up based on the reading result by the reading unit 6. Specifically, when the detection unit 8 receives a reading signal obtained by the reading unit 6 reading the packaging material information unit 14 during the pulling-out operation of pulling out the packaging material 12 from the roll body 1 held by the holding unit 2. It is detected that there is the packaging material 12. Further, it is configured to detect that the packaging material 12 is lost when the read signal is not received.

When the roll body 1 is mounted on the holding unit 2, the reading unit 6 reads the packaging material information unit 14 of the roll body 1. The control unit 7 sets the temperature of thermocompression bonding by the sealing unit 5 based on the reading result by the reading unit 6. The packaging material 12 is drawn out from the roll body 1 and is folded in half by the half-folding mechanism 3 when the half-folding mechanism 3 is provided. The drug is put into the half-folded portion of the packaging material 12 through the hopper 4. This medicine is sealed in the packaging material 12 by the sealing portion 5. At this time, the sealing unit 5 performs thermocompression bonding of the packaging material 12 at the thermocompression bonding temperature set by the control unit 7. The medicine packaging device repeats the above-described medicine injection and sealing while drawing the packaging material 12 from the roll body 1.

FIG. 4 is a schematic perspective view showing the wrapping material 12 detached from the core member 11. When the packaging material 12 is pulled out from the roll body 1, finally, the winding end of the packaging material 12 around the core member 11 is also pulled out. Then, the packaging material information part 14 comes off the position corresponding to the through window 111 of the core member 11. For this reason, the reading unit 6 cannot read the packaging material information unit 14. The detection unit 8 detects that the packaging material 12 has been used up when the reading unit 6 cannot read the packaging material information unit 14.

Thus, the packaging material breakage detection mechanism, which is a sheet material breakage detection mechanism, includes the roll body 1, the holding unit 2, the packaging material information unit 14, the reading unit 6, and the detection unit 8.

According to the first embodiment as described above, the packaging material information unit 14 is held at the end of the packaging material 12 around the core member 11 at a position corresponding to the through window 111. The reading unit 6 is provided so as to correspond to the packaging material information unit 14. Therefore, the reading unit 6 can read the packaging material information unit 14 until immediately before the packaging material 12 is used up. And the control part 7 can control the sealing part 5 suitably.

When the packaging material 12 is pulled out from the roll body 1, finally, the winding end portion of the packaging material 12 around the core member 11 is also pulled out. And the packaging material information part 14 remove | deviates from the position corresponding to the penetration window 111. FIG. Then, the reading unit 6 cannot read the packaging material information unit 14.

In consideration of this point, the detection unit 8 receives a reading signal obtained by the reading unit 6 reading the packaging material information unit 14 during the pulling-out operation of pulling out the packaging material 12 from the roll body 1 held by the holding unit 2. Then, it is configured to detect that the packaging material 12 is present, and to detect that the packaging material 12 is exhausted when the reading signal is not received. Thus, the detection unit 8 can detect that the packaging material 12 has been used up when the reading unit 6 cannot read the packaging material information unit 14. Therefore, it is not necessary to provide a mechanical configuration for detecting that the packaging material 12 has been used up (for example, the “paper breakage detection pin” described in Patent Document 1). For this reason, since the location where failure is possible is reduced, it is possible to provide a packaging material breakage detection mechanism in which failure is unlikely to occur.

-Second Embodiment-
Next, a second embodiment will be described. Portions that are functionally common to the first embodiment are denoted by the same reference numerals in the drawing, and in principle, descriptions overlapping with those of the first embodiment are omitted.

FIG. 5 is a schematic cross-sectional view showing the configuration of the roll body 1. In the first embodiment described above, the packaging material information unit 14 is directly held at the winding end of the packaging material 12 around the core member 11. On the other hand, in 2nd Embodiment, the packaging material information part 14 is hold | maintained indirectly at the winding edge part to the core member 11 in the packaging material 12 via the seal | sticker part 13. FIG.

More specifically, the roll body 1 is positioned between the core member 11, the packaging material 12 wound around the core member 11, and the outer surface of the core member 11 and the inner surface of the packaging material 12. 14 and a sealing portion 13 as a forming portion used for forming 14. The seal portion 13 is attached (adhered, adhered, or the like) to a winding end portion around the core member 11 in the packaging material 12. A packaging material information part 14 is formed in such a seal part 13.

According to the second embodiment as described above, the seal portion 13 is attached to the packaging material 12, and the packaging material information portion 14 is formed on the seal portion 13. Therefore, when forming the packaging material information section 14 on the packaging material 12, the material of the packaging material 12 is not restricted. As the seal portion 13, a material or the like that can reliably form the packaging material information portion 14 can be selected.

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

The roll body 1 may be configured by winding a pre-folded packaging material 12 around a core member 11. In this case, the half-folding mechanism 3 provided between the holding part 2 and the hopper 4 in the embodiment is not necessary.

As the packaging material information unit 14, a code other than the two-dimensional code may be used. For example, a barcode (one-dimensional code) may be used as the packaging material information unit 14.

The packaging material information unit 14 may employ various means as long as it is optically readable. The packaging material information unit 14 may include characters, figures, or symbols as components. The packaging material information unit 14 may use color as a component. The packaging material information unit 14 may have unevenness as a constituent element. Further, the packaging material information unit 14 may be configured by a plurality of elements physically (optically or visually) separated.

As a method for forming the packaging material information unit 14, a method other than printing may be used. As long as it is a method capable of forming the optically readable packaging material information portion 14, various methods that do not apply to the concept of printing, such as vapor deposition and etching, can be used as a method for forming the packaging material information portion 14. Can be adopted.

FIG. 6 is a view for explaining a modified example of the packaging material 12. As shown in FIG. 6, the packaging material 12 includes a packaging material body 12 a and an attachment portion 12 b that is attached to the winding start portion of the packaging material body 12 a and is different from the packaging material body. Also good. The attachment portion 12b is for connecting the packaging body 12a to the core member 11, and is, for example, a leader tape. The packaging material information part 14 is formed in the part corresponding to the through window 111 in the attachment part 12b. When the packaging material 12 is pulled out from the roll body 1, the mounting portion 12 b is finally pulled out, and the packaging material information portion 14 formed in the mounting portion 12 b corresponds to the through window 111 of the core member 11. Deviate from.

In the case of such a modification, the wrapping material 12 has a wrapping material body 12a and an attachment portion 12b attached to the winding start portion of the wrapping material body 12b. An information unit 14 is formed. Therefore, when forming the packaging material information part 14 in the packaging material 12, the material of the packaging material body 12a is not restricted. As the attachment portion 12b, a material or the like that can reliably form the packaging material information portion 14 can be selected.

A fitting member may be fitted in the space of the through window 111 that is a through hole. This fitting member is made of a material that allows light to pass through, and thus enables optical reading by the reading unit 6 from the inside of the core member 11 to the outside. In this case, the light passage part is constituted by the through window 111 and the fitting member. With this configuration, the outer surface of the fitting member and the outer surface of the core member 11 can be substantially flush with each other by filling the space of the through window 111 with the fitting member. Accordingly, it is possible to make it difficult to generate a dent in a portion corresponding to the through window 111 in the packaging material 12 wound around the core member 11 around the through window 111.

FIG. 7 is a schematic cross-sectional view showing a modified example of the core member 11. The core member 11 does not necessarily need to be provided with the through window 111 which is a through hole as in the above embodiment. For example, the core member 11 can be integrally formed of a material through which light passes and a material through which light is blocked, and the portion 111b formed of the material through which light passes can be used 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 passes, and a part of the core member 11, specifically, a portion 111 b that coincides with the reading unit 6 when the core member 11 is attached to the holding unit 2, It can also be. In this case, the portion other than the portion 111b serving as the light passage portion may be painted or may be left unpainted.

The medicine packaging apparatus may further include a printing unit that prints information on the medicine sealed in the packaging material 12 on the packaging material 12. The medicine packaging apparatus also uses an ink ribbon which is a sheet material different from the packaging material 12 of the above embodiment. The printing unit is an operation unit that performs an operation of “printing” related to the ink ribbon. In this case, an ink ribbon is wound around a core member different from the core member 11 of the embodiment, and a roll body different from the roll body 1 of the embodiment is configured. An ink ribbon breakage detection mechanism is configured as the sheet material breakage detection mechanism.

Finally, the configuration and operation of the above embodiment (including modified embodiments) will be summarized. The embodiment includes a roll body 1 formed by wrapping a packaging material 12 around a cylindrical core member 11, a holding unit 2 that holds the roll body 1 so that the packaging material 12 can be pulled out, and the roll A packaging material information unit 14 that is provided on the body 1 and indicates information about the packaging material 12; and a reading unit 6 that optically reads the packaging material information unit 14 of the roll body 1 held by the holding unit 2. A detecting unit 8 that detects that the packaging material 12 has been used up based on a result of reading by the reading unit 6, and the core member 11 is optically read by the reading unit 6 from the inside toward the outside. It has light passage portions (through holes, through windows) 111, 111b through which light passes so that reading can be performed, and the packaging material information section 14 includes the light passage portions (through holes, through windows) 111, 111b. The packaging material 12 at a position corresponding to The detection unit 8 is held at a winding end portion around the core member 11 and the reading unit 6 is pulled out from the roll body 1 held by the holding unit 2 during the drawing operation to pull out the packaging material 12. Receives the reading signal obtained by reading the packaging material information section 14, detects that the packaging material 12 is present, and detects that the packaging material 12 is absent when the reading signal is not received. It is a detection mechanism.

According to the said structure, the roll body 1 is comprised by the packaging material 12 being wound around the cylindrical core member 11. As shown in FIG. The roll body 1 is formed with a packaging material information section 14 indicating information about the packaging material 12. The roll body 1 is held by the holding unit 2 so that the packaging material 12 can be pulled out. When the roll body 1 is held by the holding unit 2, the packaging material information unit 14 of the roll body 1 is optically read by the reading unit 6.
The core member 11 has light passing portions (through holes, through windows) 111 and 111b through which light passes so that optical reading by the reading portion 6 is possible from the inside toward the outside, and the packaging material information portion Reference numeral 14 denotes a position corresponding to the light passage portions (through holes and through windows) 111 and 111b, and is held at a winding end portion around the core member 11 in the packaging material 12. Therefore, the reading unit 6 can read the packaging material information unit 14 until immediately before the packaging material 12 is used up.
When the packaging material 12 is pulled out from the roll body 1, finally, the winding end of the packaging material 12 around the core member 11 is also pulled out. And the packaging material information part 14 remove | deviates from the position corresponding to the light passage parts (through-hole, penetration window) 111,111b. Then, the reading unit 6 cannot read the packaging material information unit 14.
In consideration of this point, the detection unit 8 receives a reading signal obtained by the reading unit 6 reading the packaging material information unit 14 during the pulling-out operation of pulling out the packaging material 12 from the roll body 1 held by the holding unit 2. Then, it is configured to detect that the packaging material 12 is present, and to detect that the packaging material 12 is exhausted when the reading signal is not received. Thus, the detection unit 8 can detect that the packaging material 12 has been used up when the reading unit 6 cannot read the packaging material information unit 14. In the invention described in Patent Document 1, detection is performed by a mechanical configuration using a “paper breakage detection pin”, but according to the configuration, it is necessary to provide a mechanical configuration for detecting that the packaging material 12 has been used up. Therefore, it is possible to provide a packaging material breakage detection mechanism that is less prone to failure.

And the said embodiment is provided with the cylindrical core member 11 and the packaging material 12 wound around the said core member 11, and the said core member 11 becomes optically readable toward the exterior from the inside. In this way, the packaging material information section 14 having the light passage portions (through holes and through windows) 111 and 111b through which light passes and indicating information on the packaging material 12 is the light passage portion (through holes and through windows) 111. , 111b at a position corresponding to the end of the wrapping material 12 wound around the core member 11.

According to the above configuration, the roll body 1 is configured by the packaging material 12 being wound around the cylindrical core member 11. The roll body 1 is formed with a packaging material information section 14 indicating information about the packaging material 12. The core member 11 has light passage portions (through holes, through windows) 111 and 111b through which light passes so that optical reading can be performed from the inside toward the outside, and the packaging material information portion 14 At the positions corresponding to the passing portions (through holes, through windows) 111, 111b, the wrapping material 12 is held at the winding end portion around the core member 11. Therefore, the packaging material information part 14 can be left until immediately before the packaging material 12 is used up. Further, when the packaging material 12 is pulled out from the roll body 1, finally, the winding end portion of the packaging material 12 around the core member 11 is also pulled out, and the packaging material information unit 14 is connected to the light passage portion (through hole, through hole). Windows) 111 and 111b. Therefore, the packaging material information unit 14 can be used also for detecting that the packaging material 12 has been used up.

The packaging material information unit 14 can be directly formed on the inner surface of the packaging material 12.

According to the above configuration, since the packaging material information portion 14 is formed on the inner surface of the packaging material 12, the packaging material information portion 14 is reliably read from the inside of the core member 11 even when the packaging material 12 is opaque. The Moreover, since the packaging material information part 14 is directly formed in the packaging material 12, a manufacturing cost can be reduced compared with the case where the member for forming the packaging material information part 14 is provided separately.

And the said packaging material 12 has the packaging material main body 12a and the attaching part 12b attached to the part of the winding start of this packaging material main body 12a, The said packaging material information part 14 is in the said attaching part 12b. Can be formed.

According to the said structure, the packaging material 12 has the packaging material main body 12a, and the attaching part 12b attached to the winding start part of this packaging material main body 12a. 14 is formed. Therefore, when forming the packaging material information part 14 in the packaging material 12, the material of the packaging material body 12a is not restricted. As the attachment portion 12b, a material or the like that can reliably form the packaging material information portion 14 can be selected.

In the core member 11, a through-hole penetrating inward and outward is formed as the light passage portion 111.

According to the above-described configuration, the core member 11 is formed with a through-hole penetrating inward and outward as the light passage portion 111. Accordingly, the light passage portion 111 can be formed regardless of the material of the core member 11 and the like.

And the said embodiment is a manufacturing method of the roll body which winds the packaging material 12 around the cylindrical core member 11, and manufactures the roll body 1, Comprising: The process of winding the said packaging material 12 around the said core member 11, and the said core Including a step of forming a packaging material information section 14 indicating information about the packaging material 12 on the packaging material 12 as a previous step or a subsequent step of the step of winding the packaging material 12 around the member 11, and the core The member 11 has light passage portions (through holes, through windows) 111 and 111b through which light passes so that optical reading can be performed from the inside toward the outside, and the packaging material information portion 14 is In the step of forming the packaging material 12, the packaging material information portion 14 is wound around the core member 11 in the packaging material 12 at a position corresponding to the light passage portions (through holes, through windows) 111 and 111 b. Roll held at the end As 1 is obtained, a method of forming the packaging material information portion 14 to the packaging material 12.

According to the said structure, the cylindrical core member 11 has the light passage parts (through-hole, through-window) 111,111b through which light passes so that optical reading is possible from the inside toward the outside. ing. And the packaging material information part 14 which shows the information regarding the packaging material 12 is formed in the packaging material 12 wound around the core member 11 in the position corresponding to the light passage part (through-hole, penetration window) 111, 111b. . For this reason, the roll body 1 manufactured by this method can optically read the packaging material information section 14 until the packaging material 12 is used up. Furthermore, when the packaging material 12 is pulled out from the roll body 1, the packaging material information part 14 will finally remove | deviate from the position corresponding to the light passage parts (through-hole, penetration window) 111,111b. Then, the packaging material information unit 14 cannot be optically read. With this, it is possible to detect that the packaging material 12 has been used up.

In the embodiment, the step of forming the packaging material information portion 14 on the packaging material 12 is performed as a step before the step of winding the packaging material 12 around the core member 11, and the packaging material 12 is wrapped around the core member 11. In the step of winding the material 12, the packaging material information section 14 is placed at a position corresponding to the light passage section (through hole, through window) 111, 111 b at the winding end of the packaging material 12 around the core member 11. In this method, the wrapping material 12 is wound around the core member 11 so as to be held.

According to the said structure, the cylindrical core member 11 has the light passage parts (through-hole, through-window) 111,111b through which light passes so that optical reading is possible from the inside toward the outside. ing. In manufacturing the roll body 1, the packaging material information unit 14 is first formed on the packaging material 12. Thereafter, the wrapping material information section 14 is held at the winding end portion of the wrapping material 12 around the core member 11 at a position corresponding to the light passage portions (through holes, through windows) 111, 111b. 11 is wrapped around the packaging material 12. Therefore, after the packaging material 12 is wound around the core member 11, the operation of forming the packaging material information portion 14 on the packaging material 12 can be facilitated as compared with the case where the packaging material information portion 14 is formed on the inner surface of the packaging material 12. it can.

In the embodiment, the light passing portion is a through-hole 111 penetrating the core member 11 in the inner and outer directions, and the step of forming the packaging material information portion 14 in the packaging material 12 is performed on the core member 11. It is implemented as a step after the step of winding the packaging material 12, and in this step, the packaging material information section 14 is wound around the core member 11 in the packaging material 12 at a position corresponding to the through hole 111. It is the method of forming in a part.

According to the above configuration, the cylindrical core member 11 is formed with the through hole 111 penetrating inward and outward. In manufacturing the roll body 1, first, the packaging material 12 is wound around the core member 11. Thereafter, the packaging material information unit 14 is formed at the end of the packaging material 12 around the core member 11 at a position corresponding to the through hole. Therefore, the winding operation of the packaging material 12 around the core member 11 can be facilitated.
When the packaging material information portion 14 is formed on the packaging material 12 in advance and the packaging material 12 is wound around the core member 11, the packaging material information portion 14 needs to be aligned with the through hole 111 of the core member 11. On the other hand, in the said structure, alignment with the packaging material information part 14 and the through-hole 111 of the core member 11 is unnecessary, Therefore The winding operation | work of the packaging material 12 around the core member 11 can be facilitated.

The above configuration does not require a mechanical configuration for detecting that the packaging material 12 has been used up, and can be a packaging material breakage detection mechanism that is unlikely to cause a failure. Therefore, it is possible to easily detect that the packaging material 12 has been used up without using a mechanical configuration.

DESCRIPTION OF SYMBOLS 1 Roll body 11 Core member 111 Light passage part, through-hole, penetration window 111b Light passage part (thing which is not a through hole)
DESCRIPTION OF SYMBOLS 12 Sheet material, packaging material 12a Sheet material main body, packaging material main body 12b Attachment part 13 Forming part, Sealing part 14 Sheet material information part, packaging material information part 2 Holding part 6 Reading part 7 Control part 8 Detection part

Claims

A roll body formed by winding a sheet material around a cylindrical core member;
A holding portion for holding the roll body so that the sheet material can be pulled out;
A sheet material information section provided on the roll body and indicating information on the sheet material;
A reading unit that optically reads the sheet material information part of the roll body held by the holding unit;
A detection unit that detects that the sheet material has been used up based on a reading result by the reading unit;
The core member has a light passage part through which light passes so that optical reading by the reading part is possible from the inside toward the outside,
The sheet material information part is held at a position corresponding to the light passage part, and is wound around the core member in the sheet material,
The detecting unit receives the reading signal when the reading unit reads the sheet material information unit during the pulling-out operation of pulling out the sheet material from the roll body held by the holding unit. And a sheet material breakage detecting mechanism configured to detect that the sheet material is exhausted when the read signal is not received.
A tubular core member;
A sheet material wound around the core member,
The core member has a light passage part through which light passes so that optical reading is possible from the inside toward the outside,
The roll body by which the sheet material information part which shows the information regarding the said sheet material is hold | maintained at the winding end part to the said core member in the said sheet material in the position corresponding to the said light passage part.
The roll body according to claim 2, wherein the sheet material information part is formed directly on the inner surface of the sheet material.
The sheet material has a sheet material main body, and an attachment portion attached to a winding start portion of the sheet material main body,
The roll body according to claim 2, wherein the sheet material information portion is formed on the attachment portion.
The roll body according to claim 2, wherein a through-hole penetrating inward and outward is formed in the core member as the light passage portion.
A roll body manufacturing method for manufacturing a roll body by winding a sheet material around a cylindrical core member,
Winding the sheet material around the core member;
The step of winding the sheet material around the core member, as a previous step or a subsequent step, including forming a sheet material information portion indicating information on the sheet material on the sheet material,
The core member has a light passage part through which light passes so that optical reading is possible from the inside toward the outside,
In the step of forming the sheet material information portion on the sheet material, the sheet material information portion is held at a winding end portion around the core member in the sheet material at a position corresponding to the light passage portion. A method for manufacturing a roll body in which the sheet material information portion is formed on the sheet material so that the above-mentioned is obtained.
The step of forming the sheet material information portion on the sheet material is performed as a step before the step of winding the sheet material around the core member,
In the step of winding the sheet material around the core member, the sheet material information portion is held at a winding end portion around the core member in the sheet material at a position corresponding to the light passage portion, The manufacturing method of the roll body of Claim 6 which winds the said sheet | seat material around a core member.
The light passage part is a through-hole penetrating the core member in the inner and outer directions,
The step of forming the sheet material information portion on the sheet material is performed as a step after the step of winding the sheet material around the core member,
The method for manufacturing a roll body according to claim 6, wherein in this step, the sheet material information portion is formed at a winding end portion of the sheet material around the core member at a position corresponding to the through hole.