JP2016199350A - Sheet material shortage detection mechanism, roll body, and manufacturing method of roll body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily detect shortage of a sheet material of a roll body.SOLUTION: A sheet material shortage detection mechanism comprises: a sheet material information section 14 which shows information on a sheet material 12 wound to a core member 11 in which a light passage part 111 is formed; a reading section which optically reads the sheet material information section 14; and a detection section which detects shortage of the sheet material 12. The sheet material information section 14 is held on an end wound to the core member 11 in the sheet material 12 at a position corresponding to the light passage part 111. The detection section is configured to detect that there is the sheet material 12 when receiving a reading signal obtained by reading the sheet material information section 14 by the reading section during an operation of drawing the sheet material 12, and detect shortage of the sheet material 12 when receiving no reading signal.SELECTED DRAWING: Figure 4

Description

  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-use device that draws and uses a sheet material from a roll body.

  Some medicine packaging apparatuses, which are examples of sheet use 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).

  2. Description of the Related Art Conventionally, in a medicine packaging device, a configuration for detecting that a sheet material has been used up is provided separately from a configuration for acquiring information relating to a 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.

JP 2009-227469 A

  Then, this invention makes it a subject to provide the manufacturing method of a sheet material detection mechanism, a roll body, and a roll body which can detect easily that the sheet material was 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 unit is held at a position corresponding to the light passage unit, at a winding end portion of the sheet material around the core member, and the detection unit is from the roll body held by the holding unit. 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 read signal obtained by reading the sheet material information unit, and the sheet material is exhausted when the read signal is not received. A sheet material breakage detecting mechanism configured to detect.

According to the present invention, the roll body is configured by winding a sheet material around a cylindrical core member. In the roll body, a sheet material information portion indicating information on the sheet material is formed. The roll body is held by the holding unit so that the sheet material can be pulled out. When the roll body is held by the holding unit, the sheet material information portion of the roll body is optically read by the reading unit.
The core member has a light passing portion through which light can be read by the reading portion from the inside toward the outside, and the sheet material information portion is positioned at a position corresponding to the light passing portion. It is hold | maintained at the winding edge part to the core member in material. Therefore, the reading unit can read the sheet material information unit until immediately before the sheet material is used up.
When the sheet material is pulled out from the roll body, finally, the winding end portion of the sheet material around the core member is also pulled out, the sheet material information section is released from the position corresponding to the light passage section, and the reading section is the sheet. The material information section cannot be read.
In consideration of this point, when the detection unit receives a reading signal obtained by reading 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, the sheet material is present. When the sheet material is detected and no read signal is received, it is detected that the sheet material is exhausted. As described above, the detection unit can detect that the sheet material is used up when the reading unit cannot read the sheet material information unit. In the invention described in Patent Document 1, detection is performed by a mechanical configuration using a “paper breakage detection pin”. However, according to the configuration of the present invention, a mechanical configuration for detecting that the sheet material has been used up. It is possible to provide a sheet material breakage detection mechanism that is unlikely to cause a failure.

  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. And a sheet material information portion indicating information relating to the sheet material is held at a position corresponding to the light passage portion at a winding end portion of the sheet material around the core member. It is a roll body.

  According to the present invention, the roll body is configured by winding a sheet material around a cylindrical core member. In the roll body, a sheet material information portion indicating information on the sheet material is formed. The core member has a light passage portion through which light passes so that optical reading can be performed from the inside toward the outside, and the sheet material information portion is a core corresponding to the light passage portion at a position corresponding to the light passage portion. It is hold | maintained at the winding end part to a member. Therefore, the sheet material information portion can be left until immediately before the sheet material is used up. Further, when the sheet material is pulled out from the roll body, finally, the winding end portion of the sheet material around the core member is also pulled out, and the sheet material information portion is removed from the position corresponding to the light passage portion. Therefore, the sheet material information part can be used also for detecting that the sheet material has been used up.

  And the said sheet material information part shall be directly formed in the inner surface of the said sheet material.

  According to the present invention, since the sheet material information portion is formed on the inner surface of the sheet material, the sheet material information portion can be reliably read from the inside of the core member even if the sheet material is opaque. Further, since the sheet material information portion is formed directly on the sheet material, the manufacturing cost can be reduced as compared with a case where a member for forming the sheet material information portion is separately provided.

  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. .

  According to the present invention, the sheet material has the sheet material main body and the attachment portion attached to the winding start portion of the sheet material main body, and the sheet material information portion is formed in the attachment portion. Therefore, when forming the sheet material information portion on the sheet material, there is no restriction on the material of the sheet material body. As the attachment portion, a material or the like that can reliably form the sheet material information portion can be selected.

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

  According to the present invention, the core member is formed with a through-hole penetrating inward and outward as the light passage portion. Therefore, the light passage portion can be formed regardless of the material of the core member.

  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 said core member can be optically read toward the exterior from the inside. And a step of forming a sheet material information portion indicating information relating to the sheet material on the sheet material, and a position corresponding to the light passage portion. And a step of winding the sheet material around the core member so as to be held at the end of the sheet material wound around the core member.

  According to the present invention, the cylindrical core member has a light passage portion through which light passes so that optical reading can be performed from the inside toward the outside. In manufacturing a roll body, first, a sheet material information part is formed on a sheet material. Thereafter, the sheet material is wound around the core member in such a manner that the sheet material information portion is held at the end of the sheet material wound around the core member at a position corresponding to the light passage portion. Therefore, compared with the case where the sheet material information portion is formed on the inner surface of the sheet material after the sheet material is wound around the core member, the work of forming the sheet material information portion for the sheet material can be facilitated.

  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 step of forming a sheet material information portion indicating information on the sheet material at a position corresponding to the through hole at a winding end portion of the sheet material around the core member; It is a manufacturing method of the roll body characterized by including.

According to the present invention, the cylindrical core member has a through hole penetrating inward and outward. In manufacturing the roll body, first, a sheet material is wound around the core member. Thereafter, the sheet material information part is formed at the end corresponding to the through hole at the winding end of the sheet material around the core member. Therefore, the winding operation of the sheet material around the core member can be facilitated.
When the sheet material information part is formed in advance on the sheet material and the sheet material is wound around the core member, it is necessary to align the sheet material information part with the through hole of the core member. On the other hand, in the present invention, it is not necessary to align the sheet material information portion with the through hole of the core member, and therefore, the winding operation of the sheet material around the core member can be facilitated.

  According to the present invention, it is not necessary to provide a mechanical configuration for detecting that the sheet material has been used up, and a sheet material breakage detection mechanism that is less prone to failure can be achieved. Therefore, it is possible to easily detect that the sheet material has been used up without using a mechanical configuration.

It is the perspective view which showed simply the mechanism for packaging a chemical | medical agent using the roll body which concerns on 1st Embodiment of this invention. The roll body which concerns on 1st Embodiment of this invention is shown, (A) is a perspective view which shows the external appearance of a roll body, (B) is a perspective view of the principal part expansion which shows the radial direction cross section of a roll body. (C) is a schematic sectional view showing the configuration of the roll body. It is a schematic perspective view which shows the relationship between the roll body which concerns on 1st Embodiment of this invention, and the holding | maintenance part of a chemical | medical agent packaging apparatus. In the roll body which concerns on 1st Embodiment of this invention, it is a schematic perspective view which shows the place where the packaging material removed from the core member. It is a schematic sectional drawing which shows the structure of the roll body which concerns on 2nd Embodiment of this invention. It is a figure for demonstrating the modification of a packaging material. It is a schematic 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 for use. 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 for controlling the sealing part 5.

  The holding part 2 has a shaft part 21. The shaft portion 21 is provided to be rotatable around the axis of the shaft portion 21. As shown in FIG. 3, 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 portion 5 is exhibited 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, in which FIG. 2A is a perspective view showing an appearance of the roll body 1, and FIG. 2B is an enlarged perspective 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 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 portion through which light passes so that optical reading by a reading portion 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 a rectangular shape or a square shape when viewed in the radial direction. 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 and a polygon. As shown 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 unit 14 so that the packaging material information unit 14 described later, which is a sheet material information unit, is not hidden by the core member 11.

  The roll body 1 is formed with a packaging material information section 14 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 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)) 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 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 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 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 in 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.

  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.

  A reading portion 6 that optically reads the packaging material information portion 14 of the roll body 1 held by the holding portion 2 is provided on the shaft portion 21 of the holding portion 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 for detecting that the packaging material 12 has been used up. In the present embodiment, the control unit and the detection unit are provided integrally. However, the present invention is not limited to this, and the control unit and the detection unit can be provided separately.

  The control unit 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. Further, the detection unit detects that the packaging material 12 has been used up based on the result of reading by the reading unit 6. Specifically, when the reading unit 6 receives a reading signal obtained by 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, the detection unit wraps the package. It is configured to detect that the material 12 is present and to detect that the packaging material 12 is exhausted 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 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 pulled out from the roll body 1 and folded in half by the half-folding mechanism 3. 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 a thermocompression bonding temperature set by the control unit. 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 packaging material 12 being detached from the core member 11. When the packaging material 12 is pulled out from the roll body 1, the winding end of the packaging material 12 around the core member 11 is finally pulled out, and the packaging material information unit 14 corresponds to the through window 111 of the core member 11. Out of position. For this reason, the reading unit 6 cannot read the packaging material information unit 14. The detection unit detects that the packaging material 12 has been used up when the reading unit 6 cannot read the packaging material information unit 14.

  As described above, 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.

  According to the present 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 the position corresponding to the through window 111, and the reading unit 6 is the packaging material. It is provided so as to correspond to the information unit 14. Therefore, until the packaging material 12 is used up, the reading unit 6 can read the packaging material information unit 14, and the control unit can suitably control the sealing unit 5.

  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 unit 14 is detached from the position corresponding to the through window 111. The reading unit 6 cannot read the packaging material information unit 14.

  In consideration of this point, when the detection unit receives a reading signal obtained by 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 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. As described above, the detection unit can detect that the packaging material 12 has been used up when the reading unit 6 cannot read the packaging material information unit 14. Accordingly, it is not necessary to provide a mechanical configuration for detecting that the packaging material 12 has been used up (for example, the “out of paper detection pin” described in Patent Document 1), and the number of possible failures can be reduced. It is possible to use a packaging material breakage detection mechanism that is difficult to generate.

-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 this 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 half-folded packaging material 12 around the core member 11. In this case, the half-folding mechanism 3 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 modification 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. In this configuration, the space of the through window 111 is filled with the fitting member, so that the outer surface of the fitting member and the outer surface of the core member 11 can be substantially flush with each other, whereby the core member 11 is wound around the through window 111. It is possible to make it difficult to generate a dent in the portion of the packaging material 12 corresponding to the through window 111.

  FIG. 7 is a schematic cross-sectional view showing a modification 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 a portion 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 thereof, specifically, a portion that coincides with the reading unit 6 when the core member 11 is mounted on the holding unit 2 is referred to as a light passing unit. You can also In this case, the portion other than the light passing portion may be painted or 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.

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 Attaching part 13 Forming part, Sealing part 14 Sheet material information part, packaging material information part 2 Holding part 6 Reading part

Claims (7)

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. The sheet material breakage detection mechanism is 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,
A roll body, wherein a sheet material information portion indicating information relating to the sheet material is held by a winding end portion of the sheet material around the core member at a position corresponding to the light passage portion.   The roll body according to claim 2, wherein the sheet material information portion is directly formed on an 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 in the inner and outer directions 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,
The core member has a light passage part through which light passes so that optical reading is possible from the inside toward the outside,
Forming a sheet material information portion indicating information on the sheet material on the sheet material;
Winding the sheet material around the core member in such a manner that the sheet material information portion is held by the winding end of the sheet material around the core member at a position corresponding to the light passage portion. The manufacturing method of the roll body characterized. 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;
Forming a sheet material information section indicating information on the sheet material at a position corresponding to the through hole at a winding end portion of the sheet material around the core member. Method.

Images