WO2016163440A1

WO2016163440A1 - Sheet material depletion detection mechanism, roll, and roll production method

Info

Publication number: WO2016163440A1
Application number: PCT/JP2016/061351
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: EP3281898A1; CA2981968A1; CN107428483A; JP6498997B2; EP3281898A4; AU2016244549A1; TW201702168A; US20180141773A1; KR20170135825A; HK1243393A1; JP2016199347A

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 through hole 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 formed across a section of the end part that corresponds to the through hole and a section of the end part that is in the vicinity of the through hole at an inner surface of the core member. During an 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. 2015-080085, 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 is formed with a through-hole penetrating inward and outward directions, and the sheet material information portion is a winding end portion of the sheet material around the core member. The detection unit is formed between the part corresponding to the through hole and the part adjacent to the through hole on the inner surface of the core member. 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 equipped with the cylindrical core member and the sheet | seat material wound around the said core member, The through-hole penetrated in the inside / outside direction is formed in the said core member, and shows the information regarding the said sheet | seat material The sheet material information part is a roll body formed over a portion corresponding to the through hole of a winding end portion of the sheet material around the core member and a portion adjacent to the through hole on the inner surface of the core member. is there.

And the area of the through hole can be made smaller than the area of the sheet material information section.

And this invention is the manufacturing method of the roll body which winds a sheet | seat material around a cylindrical core member, and manufactures the roll body, Comprising: The said member is formed with the through-hole penetrated in the inside and outside direction, A step of winding the sheet material around the core member, and a sheet material information portion indicating information on the sheet material, a portion corresponding to the through-hole of the winding end portion of the sheet material to the core member, and the core And a step of forming over a portion of the inner surface of the member that is close to the through hole.

FIG. 1 is a perspective view simply showing a mechanism for packaging a medicine using a roll body according to an embodiment of the present invention. FIG. 2A is a perspective view showing a roll body according to an embodiment of the present invention and showing an appearance of the roll body. FIG. 2B is an enlarged perspective view of a main part showing a roll body according to an embodiment of the present invention and showing a radial cross section of the roll body. 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 one embodiment of the present invention.

One embodiment of the present invention will be described below.
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 unit 5 seals the drug in the half-folded packaging material 12 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. It is a perspective view. 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 is formed with a through window 111. 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. The through window 111 has, for example, a rectangular shape when viewed in the radial direction. However, the shape of the through window 111 is not limited to a rectangle, and may be various shapes such as a circle and 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.

In the present embodiment, the area of the through window 111 is smaller than the area of a packaging material information unit 13 described later which is a sheet material information unit. Thus, by making the area of the through window 111 smaller than the area of the packaging material information unit 13, the influence of the through window 111 on the packaging material 12 can be reduced.

The roll body 1 is formed with a packaging material information section 13 indicating information about 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 13 can be read optically. The light for optically reading the packaging material information unit 13 is not limited to visible light, and may be infrared light or ultraviolet light, for example. The packaging material information unit 13 is formed by printing.

The packaging material information unit 13 is a plurality of elements physically (optically or visually) combined into one. The packaging material information unit 13 indicates information related to the packaging material 12 as a whole of the packaging material information unit 13 (that is, a group of the plurality of elements). In other words, the packaging material information unit 13 cannot indicate information related to the packaging material 12 if a part of the packaging material information unit 13 (that is, one or more elements among the plurality of elements) is missing. . The packaging material information unit 13 encodes 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 13. Therefore, general-purpose means can be used as the reading unit 6 described later.

The packaging material information section 13 is formed across a portion corresponding to the through window 111 at a winding end portion of the packaging material 12 around the core member 11 and a portion near the through window 111 on the inner surface 112 of the core member 11. More specifically, the packaging material information unit 13 includes a packaging material side display unit 131 formed at a portion corresponding to the through window 111 at the end of the packaging material 12 around the core member 11, and the inner surface of the core member 11. 112 and a core member side display portion 132 formed in a portion close to the through window 111. In this embodiment, the packaging material information part 13 straddles the edge part 111a of the penetration window 111 in the circumferential direction of the core member 11, as shown in FIG. 2B.

In manufacturing the roll body 1, the packaging material 12 is first wound around the core member 11. Thereafter, the packaging material information unit 13 is formed by printing. At this time, the packaging material information part 13 is formed over the part corresponding to the through window 111 and the part adjacent to the through window 111 on the inner surface 112 of the core member 11 at the end of the packaging material 12 around the core member 11. To do. That is, the packaging material information unit 13 is divided into a portion corresponding to the through window 111 of the packaging material 12 and a portion of the inner surface 112 of the core member 11 that is close to the through window 111.

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 a part of the packaging material information unit 13 is formed in advance on the packaging material 12 and the packaging material 12 is wound around the core member 11, a part of the packaging material information unit 13 is aligned with the through window 111 of the core member 11. There is a need. On the other hand, the manufacturing method of the roll body 1 of this embodiment does not require alignment of a part of the packaging material information unit 13 and the through window 111 of the core member 11, and therefore the packaging material 12 with respect to the core member 11. The winding work can be facilitated.

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 13 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 13 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 13 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 13 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.

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. Then, the packaging material side display part 131 comes off from the position corresponding to the through window 111 of the core member 11. Therefore, the packaging material side display unit 131 which is a part of the packaging material information unit 13 is lost, and the reading unit 6 cannot read the packaging material information unit 13. 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 13.

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 13, the reading unit 6, and the detection unit 8.

According to the present embodiment as described above, the portion where the packaging material information section 13 is formed is the portion of the packaging material 12 corresponding to the through window 111 and the portion of the winding end portion around the core member 11 of the core member 11. This is a portion of the inner surface 112 close to the through window 111. The reading unit 6 is provided so as to correspond to the packaging material information unit 13. Therefore, the reading unit 6 can read the packaging material information unit 13 until immediately before the packaging material 12 is used up. And the control part 7 can control the sealing part 5 suitably.

A part of the packaging material information part 13 is formed in a part of the packaging material 12 corresponding to the through window 111 at the end of the packaging material 12 wound around the core member 11. Therefore, when the packaging material 12 is pulled out from the roll body 1, the winding end portion of the packaging material 12 around the core member 11 is finally pulled out. And a part of the packaging material information part 13 comes off from the position corresponding to the through window 111 and is missing. Then, the reading unit 6 cannot read the packaging material information unit 13.

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 13 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 comprised so that it may detect that the packaging material 12 exists. Furthermore, the detection part 8 is comprised so that it may detect that the packaging material 12 is lose | eliminated, when the said read signal is no longer received. As described above, 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 13. 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). Therefore, since the number of places where failure can occur is reduced, it is possible to provide a packaging material breakage detection mechanism in which failure is unlikely to occur.

Moreover, the packaging material information part 13 is formed across the part corresponding to the through window 111 at the end of the packaging material 12 around the core member 11 and the part near the through window 111 on the inner surface 112 of the core member 11. Yes. Therefore, the area of the through window 111 can be reduced regardless of the size of the packaging material information unit 13, and thereby the influence of the through window 111 on the packaging material 12 can be reduced.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

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 13, a code other than a two-dimensional code may be used. For example, a barcode (one-dimensional code) may be used as the packaging material information unit 13.

The packaging material information unit 13 may employ various means as long as it is optically readable. The packaging material information unit 13 may include characters, figures, or symbols as components. The packaging material information unit 13 may use color as a component. The packaging material information unit 13 may have unevenness as a constituent element. Furthermore, the packaging material information unit 13 may be configured by a plurality of elements physically (optically or visually) separated.

As a method for forming the packaging material information unit 13, a method other than printing may be used. As long as it is a method capable of forming the optically readable packaging material information section 13, 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 section 13. Can be adopted. Further, even in printing, for example, the packaging material information part 13 is printed on a seal formed separately from the core member 11 and the packaging material 12, and the seal corresponds to the through window 111 of the packaging material 12, It can also be affixed over the inner surface 112 of the core member 11 and a portion close to the through window 111.

The packaging material 12 may have a packaging material main body and an attachment portion that is attached to the winding start portion of the packaging material main body and is separate from the packaging material main body. In this case, the packaging material side display part 131 which is a part of the packaging material information part 13 is formed in the part corresponding to the penetration window 111 in an attachment part. When the packaging material 12 is pulled out from the roll body 1, finally, the mounting portion is also pulled out, and the packaging material side display portion 131 formed on the mounting portion is from a position corresponding to the through window 111 of the core member 11. Come off.

As a part of the packaging material information unit 13, the color of the portion adjacent to the through window 111 on the inner surface of the core member 11 can be used. Further, the shape of the through window 111 of the core member 11 can be used as a part of the packaging material information unit 13.

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 section 13 provided on the body 1 for indicating information about the packaging material 12, and a reading section 6 for optically reading the packaging material information section 13 of the roll body 1 held by the holding section 2. A detection 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 formed with a through hole 111 penetrating inward and outward, The packaging material information unit 13 includes a portion corresponding to the through-hole 111 at a winding end portion of the packaging material 12 around the core member 11, and a portion adjacent to the through-hole 111 on the inner surface 112 of the core member 11. Shape over The reading unit 6 reads the packaging material information unit 13 during the pulling-out operation of pulling out the packaging material 12 from the roll body 1 held by the holding unit 2. Is a packaging material breakage detection mechanism configured to detect that the packaging material 12 is present when it receives, and to detect that the packaging material 12 is exhausted when the reading signal is not received.

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 13 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 13 of the roll body 1 is optically read by the reading unit 6.
The core member 11 is formed with a through hole 111 penetrating in the inner and outer directions. The part where the packaging material information part 13 is formed is a part corresponding to the through hole 111 and a part adjacent to the through hole 111 on the inner surface 112 of the core member 11 at the end of the packaging material 12 around the core member 11. is there. Therefore, the reading unit 6 can read the packaging material information unit 13 until immediately before the packaging material 12 is used up.
A part of the packaging material information portion 13 is formed in a portion of the packaging material 12 corresponding to the through-hole 111 at the winding end portion around the core member 11. Therefore, when the packaging material 12 is pulled out from the roll body 1, the winding end portion of the packaging material 12 around the core member 11 is finally pulled out. Then, a part of the packaging material information unit 13 is removed from the position corresponding to the through hole 111 and is lost, and the reading unit 6 cannot read the packaging material information unit 13.
In consideration of this point, the detection unit 8 receives a read signal obtained by the reading unit 6 reading the packaging material information unit 13 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 comprised so that it may detect that the packaging material 12 exists. Furthermore, the detection part 8 is comprised so that it may detect that the packaging material 12 is lose | eliminated, when a read signal is no longer received. As described above, 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 13. 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. There is no. For this reason, it can be set as the packaging-material breakage detection mechanism which is hard to produce a failure.
In addition, the packaging material information section 13 is formed across the portion corresponding to the through hole 111 of the end portion of the packaging material 12 around the core member 11 and the portion of the inner surface 112 of the core member 11 adjacent to the through hole 111. Yes. Therefore, the area of the through hole 111 can be reduced regardless of the dimensions of the packaging material information section 13, and thereby the influence of the through hole 111 on the packaging material 12 can be reduced.

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 is formed with the through-hole 111 penetrated in the inside and outside direction, A packaging material information section 13 indicating information related to the packaging material 12 includes a portion corresponding to the through-hole 111 at the end of the packaging material 12 wound around the core member 11, and the penetration in the inner surface 112 of the core member 11. It is a roll body 1 formed over a portion close to the hole 111.

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 13 indicating information about the packaging material 12. The core member 11 is formed with a through hole 111 penetrating in the inner and outer directions. The part where the packaging material information part 13 is formed is a part corresponding to the through hole 111 and a part adjacent to the through hole 111 on the inner surface 112 of the core member 11 at the end of the packaging material 12 around the core member 11. is there. Therefore, the packaging material information section 13 can be left until immediately before the packaging material 12 is used up.
A part of the packaging material information portion 13 is formed in a portion of the packaging material 12 corresponding to the through-hole 111 at the winding end portion around the core member 11. Therefore, when the packaging material 12 is pulled out from the roll body 1, the winding end portion of the packaging material 12 around the core member 11 is finally pulled out. And a part of the packaging material information part 13 comes off from the position corresponding to the through hole 111 and is missing. Therefore, the packaging material information unit 13 can be used also for detecting that the packaging material 12 has been used up.
Moreover, the sheet information display portion is formed across the portion corresponding to the through hole 111 of the end portion of the wrapping material 12 around the core member 11 and the portion close to the through hole 111 on the inner surface 112 of the core member 11. . Therefore, the area of the through hole 111 can be reduced regardless of the dimensions of the information display portion, and thereby the influence of the through hole 111 on the packaging material 12 can be reduced.

And the area of the through-hole 111 can be made smaller than the area of the packaging material information part 13.

According to the above configuration, the influence of the through hole 111 on the packaging material 12 can be reduced by making the area of the through hole 111 smaller than the area of the packaging material information unit 13.

And the said embodiment is a method of winding the packaging material 12 around the cylindrical core member 11, and manufacturing the roll body 1, Comprising: The core member 11 is formed with the through-hole 111 penetrated in the inside / outside direction. The step of winding the wrapping material 12 around the core member 11 and the wrapping material information portion 13 indicating information related to the wrapping material 12 are arranged in the through-hole of the winding end portion of the wrapping material 12 around the core member 11. 111 and a step of forming over a portion adjacent to the through hole 111 in the inner surface 112 of the core member 11.

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 portion 13 is formed over a portion corresponding to the through hole 111 of the end portion of the packaging material 12 around the core member 11 and a portion adjacent to the through hole 111 on the inner surface 112 of the core member 11. To do. Therefore, the winding operation of the packaging material 12 around the core member 11 can be facilitated.
When a part of the packaging material information part 13 is formed in advance on the packaging material 12 and the packaging material 12 is wound around the core member 11, a part of the packaging material information part 13 is aligned with the through hole 111 of the core member 11. There is a need. On the other hand, in the method as in the present invention, it is not necessary to align a part of the packaging material information section 13 with the through hole 111 of the core member 11, and therefore, the winding operation of the packaging material 12 around the core member 11 is performed. Can be facilitated.

As described above, the embodiment does not need to be provided with a mechanical configuration for detecting that the packaging material 12 is 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 Through-hole, penetration window 112 Inner surface 12 Sheet material, packaging material 13 Sheet material information part, packaging material information part 131 Packaging material side display part 132 Core member side display part 2 Holding part 5 Action part, Sealing Stop 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;
In the core member, a through-hole penetrating inward and outward is formed,
The sheet material information part is formed over a portion corresponding to the through hole of a winding end portion of the sheet material around the core member and a portion adjacent to the through hole on the inner surface of the core member,
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,
In the core member, a through-hole penetrating inward and outward is formed,
A sheet material information portion indicating information on the sheet material includes a portion corresponding to the through hole of a winding end portion of the sheet material around the core member, and a portion adjacent to the through hole on the inner surface of the core member. Roll body formed over.
The roll body according to claim 2, wherein an area of the through hole is smaller than an area of the sheet material information portion.
A roll body manufacturing method for manufacturing a roll body by winding a sheet material around a cylindrical core member,
The core member is formed with a through-hole penetrating inward and outward directions,
Winding the sheet material around the core member;
A portion corresponding to the through hole, and a portion adjacent to the through hole in the inner surface of the core member, of a sheet material information portion indicating information on the sheet material, at a winding end portion of the sheet material around the core member The manufacturing method of a roll body including the process formed over.