JP6941274B2 - Sheet roll for drug packaging and core of sheet roll for drug packaging - Google Patents

Description

The present invention relates to belt-like medicine packaging sheet roll sheet is wound for drug packaging, in particular mounted on the medicine packaging apparatus or the like, a sheet for medicine packaging for packaging One not a one dose amount of powdered medicine and solid drug It's about rolls. The present invention also relates to a winding core of a sheet roll for drug packaging.

Medicine packaging apparatus is known for packaging One not a one dose amount of powdered medicine and solid agents. The drug packaging device is built in, for example, a powder packaging device or a solid drug supply device, and packages powder or the like distributed by the powder packaging device or the like.
In a drug packaging device, a strip-shaped sheet wound in a roll shape is generally used.
The sheet roll on which the strip-shaped sheet is wound is rotatably attached to the drug packaging device, and the sheet reaches a drug charging portion such as a hopper via a predetermined suspension path. Then, the drug is put into the sheet, and a part of the sheet is heat-sealed to wrap the drug.

The feeding of the sheet from the sheet roll is performed by pulling a part of the sheet. That is, the seat roll itself is mounted so as to be freely rotatable, and there is no drive source on the roll side. In a general drug packaging device, the sheet roll is rotated by pulling the unwound portion of the sheet, and the sheet is unwound. If the sheet roll is rotated too much here, the sheet may be wrinkled or the sheet may be displaced.

As a measure for solving this problem, Patent Document 1 discloses a seat tension adjusting device that applies a braking force to a seat roll.
The tension adjusting device disclosed in Patent Document 1 is equipped with an electromagnetic brake so that the seat roll does not rotate too much when the seat is pulled. Further, in the tension adjusting device disclosed in Patent Document 1, the electromagnetic force of the electromagnetic brake is adjusted so that the tension applied to the seat becomes substantially constant even if the diameter of the seat roll changes.

Further, Patent Document 2 discloses a method having an angle sensor and a length measuring sensor for measuring the feed length of a sheet, and adjusting the sheet tension according to the diameter of the sheet roll based on the signals of the two sensors described above. Has been done. In the invention disclosed in Patent Document 2, the rotation angle of the sheet roll is detected by a magnet that rotates together with the sheet roll.

Jikken 1-36832 Gazette Japanese Unexamined Patent Publication No. 2000-355306

As described above, the drug packaging device is built in the powder packaging device and the solid drug supply device, and the sheet roll is rotatably attached. Then, the seat travels on a predetermined suspension route, and at that time, the drug is wrapped inside the seat.
Here, the mounting position of the seat roll and the layout of the suspension path vary depending on the device.
For example, the seat roll mounting position may be on the right side or the left side of the drug charging section when viewed from the user side.

Similarly, the sheet roll has a plurality of forms.
For example, when the seat roll is viewed from the front side or the flat side with reference to the state in which the seat roll is mounted in the normal posture, the seat is wound in the right-handed direction from the free end toward the winding core, and the right-handed roll is wound in the left-handed direction. There is a wound left-handed roll.
However, the winding direction of the sheet is opposite when viewed upside down. For example, even if the roll is a right-handed roll and the sheet is wound in the right-handed direction from the free end toward the winding core based on the original mounting posture, the sheet is observed upside down. The winding direction is the left-handed direction, and it looks like a left-handed roll.

Therefore, in pharmacies equipped with multiple types of powder packaging devices and solid drug supply devices, it may be confusing which sheet roll should be installed, and the sheet roll is mistaken for the device that should be installed with the right-handed roll. There is a concern that the right-handed roll will be attached to the device to which the left-handed roll should be attached.

In addition, there are sheet rolls that have the same winding direction and are similar in appearance but are not suitable for a specific powder packaging device or solid drug supply device, or whether or not they exhibit regular performance. Even in such a case, if the sheet roll is mistaken, an unexpected problem may occur.

Therefore, it is an object of the present invention to provide a sheet roll for drug packaging, which can detect a mistake in a sheet roll at an early stage.
Another object of the present invention is to provide a winding core of a sheet roll for drug packaging that solves the same problem.

An embodiment for solving the above-mentioned problems is a drug packaging sheet roll having a band-shaped sheet for drug packaging and a winding core, and the sheet is wound around the winding core in a roll shape. In a sheet roll for drug packaging, which is rotatably attached to a device having a function and the sheet is unwound, a plurality of magnets are attached to the winding core, and the magnets apply a magnetic field to the outside of a specific surface. It is a sheet roll for drug packaging, which can be generated and has a mixture of magnetic fields generated in different states.
A more specific embodiment has a strip-shaped sheet for packaging a drug and a winding core, the winding core has a through hole penetrating in the axial direction at the center, and the sheet is rolled in the winding core. In a wound drug packaging sheet roll, which is rotatably attached to a device having a drug packaging function and the sheet is unwound, three magnets are attached to the winding core. The magnet generates a magnetic field in the through hole of the winding core, and the strength of the magnetic field by the three magnets is weak, medium and strong, and the magnet is in a part of the circumferential direction. It is a sheet roll for drug packaging characterized in that it is arranged at intervals and weak strength is arranged on both sides of a magnet having a strength inside.

Magnets having different intensities may be mixed, and the intensities of the magnetic fields generated on the outer side of a specific surface may be different.

Magnets of different sizes may be mixed, and the strength of the magnetic field generated on the outer side of a specific surface may be different.

Magnets with different buried depths are mixed, and the strength of the magnetic field generated on the outer side of a specific surface may be different.

There may be a shield in the vicinity of the magnet, and the strength of the magnetic field generated on the outer side of the specific surface may be different.

Magnets having different mounting postures may be mixed, and at least one of the magnets generated may differ in the direction or strength of the magnetic field generated on the outer side of the specific surface.

Magnets having different polar directions may be mixed, and the direction of the magnetic field generated on the outer side of a specific surface may be different.
It is desirable that the winding core has a through hole penetrating in the axial direction at the center, and the specific surface is an inner peripheral surface of the through hole.
It is desirable that the magnet is mounted on one end side in the axial direction.

The mode of the winding core of the drug packaging sheet roll is a winding core of the drug packaging sheet roll around which a strip-shaped sheet for drug packaging is wound, and the sheet is rotatably attached to a device having a drug packaging function. A plurality of magnets are mounted on the winding core of the sheet roll for drug packaging, and the magnets can generate a magnetic field on the outer side of a specific surface, and the generated magnetic field can be generated. It is characterized by a mixture of different states.

The sheet roll for drug packaging of the present invention has an effect that when a mistake is made, it can be known at an early stage. Further, the core of the sheet roll for drug packaging of the present invention also has an effect of being able to know the mistake of the sheet roll for drug packaging at an early stage.

(A) is a schematic view showing the accommodation configuration of the paper feeding portion and the packaging portion of the drug packaging device, and shows a state in which a regular drug packaging sheet roll is attached by a regular suspension route, and (b) shows a state in which the sheet is attached. It is a graph which shows the detection state of the magnetic detection means at the time of feeding. (A) is a schematic view showing the accommodation configuration of the paper feeding portion and the packaging portion of the drug packaging device, and shows a state in which the wrong drug packaging sheet roll is attached by the wrong suspension route, and (b) shows the sheet. It is a graph which shows the detection state of the magnetic detection means at the time of feeding. It is a perspective view which shows the state when the sheet roll for drug packaging of this embodiment is attached to the support shaft part of the paper-feeding part of the drug packaging apparatus of FIG. It is sectional drawing in the state in which the sheet roll for drug packaging of this embodiment is attached to the support shaft part of the paper-feeding part of the drug packaging apparatus of FIG. (A) is an exploded perspective view of the sheet roll for drug packaging of the present embodiment, and (b) is a bottom view of the winding core observed from below. It is a magnetic field diagram which shows the state of the magnetic field generated by the magnet built in the winding core. (A) is a perspective view of a left-handed roll, and (b) is a perspective view of a right-handed roll. (A) to (c) are front views of the winding core of the sheet roll for drug packaging of another embodiment of this embodiment. (A) is a schematic view showing a storage configuration of a paper-feeding portion and a packaging portion of a drug packaging device, showing a state in which a pre-folded sheet roll for drug packaging is attached by a regular suspension route, and (b). Is a graph showing the detection status of the magnetic detection means when the sheet is extended, and (c) is a cross-sectional view taken along the line AA of (a). (A) is a schematic view showing a storage configuration of a paper-feeding portion and a packaging portion of a drug packaging device, showing a state in which a pre-folded drug packaging sheet roll is attached by an erroneous suspension path, and (b). Is a graph showing the detection status of the magnetic detection means when the sheet is extended, and (c) is a cross-sectional view taken along the line AA of (a).

The drug packaging sheet roll 1 according to the embodiment of the present invention can determine the correctness of the drug packaging sheet roll by detecting the rotation direction when the sheet 3 is unwound.
That is, if the drug packaging sheet roll is mistakenly attached to the drug packaging device or the like, the rotation direction of the drug packaging sheet roll when the sheet 3 is unwound may be opposite. The drug packaging sheet roll 1 of the present embodiment can detect the rotation direction of the drug packaging sheet roll by attaching it to a drug packaging device or the like provided with a magnetic field detecting means such as a Hall element.

The sheet roll 1 for drug packaging according to the embodiment of the present invention has a sheet 3 wound around a winding core 2 in a roll shape as shown in FIG. 5, and has three magnets on one end side of the winding core 2 in the axial direction. 5, 6 and 7 are mounted, and a magnetic field is generated on the outside of the inner peripheral surface on one end surface side in the axial direction (inside the through hole 10 of the winding core 2). Further, the three magnets 5, 6 and 7 described above are different in size and the strength of the generated magnetic field is different.
Prior to the detailed description of the drug packaging sheet roll 1, the configuration of peripheral devices will be briefly described.

FIG. 1 is a schematic configuration diagram of a paper feeding unit 100 and a packaging unit 200 of a drug packaging device. In the paper feed unit 100, the drug packaging sheet roll 1 is rotatably mounted on the horizontally supported support shaft 101, and the sheet 3 pulled out from the drug packaging sheet roll 1 passes through the feed rollers 102 and 103, and the next It is supplied to the packaging unit 200.

The sheet 3 unwound from the drug packaging sheet roll 1 is folded in half by a triangular plate 104 provided in the packaging portion 200. Further, the packaging unit 200 has a hopper 105 for charging a drug.
In the packaging unit 200, a predetermined amount of the drug is charged from the hopper 105 into the sheet 3 folded in half by the triangular plate 104. After that, the sheet 3 is heat-sealed in the width direction and both side edges at predetermined intervals by a heating roller 106 having a perforated cutter.

FIG. 4 is a cross-sectional view showing a state in which the sheet roll 1 is attached to the paper feed unit 100. As shown in the figure, the support shaft 101 is rotatably attached to a fixed shaft 108 integrally fixed to the support plate 111 via bearings 112 and 112, and is freely rotatable.
The fixed shaft 108 does not rotate.
A plurality (4) Hall element sensors 125 for detecting magnetic force are provided on the free end side 115 of the fixed shaft 108 as shown in FIGS. 3 and 4. The signal of the Hall element sensor 125 is input to a control device (not shown).
In this embodiment, the Hall element sensor 125 and the three magnets 5, 6 and 7 provided on the winding core 2 form a rotation angle sensor, and a length measuring sensor (not shown) for measuring the feeding amount of the sheet 3. ) And the signal of the rotation angle sensor, the outer diameter of the seat roll 1 is calculated, and the braking force is adjusted according to the change in the winding diameter of the seat roll 1.

The support shaft 101 has a flange portion 113 on the support plate 111 side. A plurality of fixing magnets 107 are provided on the flange portion 113 on the support plate 111 side.

As shown in FIG. 4, the motor brake 116 is engaged with the bottom surface of the support shaft 101, and an appropriate tension is applied to the seat 3 unwound from the seat roll 1. The motor brake 116 is attached to the support plate 111, the gear unit 121 is rotated via a transmission belt (not shown), and the pinion 122 provided on the output shaft thereof is provided on the outer end surface of the flange portion 113. Is engaged with to apply a braking force to the support shaft 101.

The motor brake 116 used in the present embodiment can change the braking force, and the braking force can be changed according to the magnitude of the tension of the seat 3.

Next, the structure of the drug packaging sheet roll 1 of the embodiment will be described in detail.
The sheet roll 1 for drug packaging is a sheet 3 wound around a winding core 2 in a roll shape as shown in FIG.
The winding core 2 is a member made of resin, and a through hole 10 penetrating in the axial direction is provided at the center thereof.

A plurality of magnets 5, 6 and 7 are mounted on one end surface 20 side of the winding core 2 and in the vicinity of the inner circumference of the through hole 10. In this embodiment, three magnets 5, 6 and 7 are provided. The three magnets are different in size. The magnet 5 has the strongest magnetic force generated. The magnet 6 has a medium size, and the generated magnetic force is medium. The magnet 7 is a small magnet, and the generated magnetic force is weak.
The magnets 5, 6 and 7 are arranged so as to be concentrated in a part of one end surface 20 of the winding core 2 at regular intervals. Specifically, magnets 5, 6 and 7 are arranged in a region of about 90 degrees.
Further, four iron pieces 22 are arranged at equal intervals on the other end surface 21 of the winding core 2.

The sheet 3 is a single strip-shaped sheet. The sheet 3 is made of a heat-sealing material.

The sheet 3 of the present embodiment is a left-handed roll, and is wound around a winding core 2 in a left-handed state.
That is, when the sheet roll 1 for drug packaging is observed from the front as the posture correctly attached to the packaging portion 200, a left-handed vortex is formed from the free end side toward the winding core 2 as shown in FIG. 7A. It is wrapped as if it were.
As shown in FIG. 7B, the right-handed roll for drug packaging sheet roll 25 is wound so as to form a right-handed vortex from the free end side toward the winding core 2.

The drug packaging sheet roll 1 used in the present embodiment is a left-handed roll, and is mounted on the support shaft 101 of the paper feeding unit 100 as shown in FIG. More specifically, the through hole 10 of the winding core 2 of the drug packaging sheet roll 1 is inserted into the support shaft 101. The insertion direction of the drug packaging sheet roll 1 is such that the end surface 21 on the side on which the iron piece 22 is mounted is the head, and the end surface 21 on the side on which the iron piece 22 is mounted is on the support plate 111 side as shown in FIG. In contact with the flange portion 113 of. Then, the iron piece 22 of the winding core 2 is attracted to the fixing magnet 107.
As a result, the drug packaging sheet roll 1 is fixed to the support shaft 101 of the paper feeding unit 100 by a magnetic force. Here, since the support shaft 101 is freely rotatable, the drug packaging sheet roll 1 is freely rotated together with the support shaft 101.
Since the fixed shaft 108 does not rotate, when the drug packaging sheet roll 1 rotates, the magnets 5, 6 and 7 attached to the drug packaging sheet roll 1 rotate around the fixed shaft 108 and become the fixed shaft 108. It rotates around the fixed Hall element sensor 125.

The suspension route of the sheet 3 of the drug packaging sheet roll 1 is as shown in FIG. When the sheet 3 is pulled by the feed rollers 102 and 103, the drug packaging sheet roll 1 rotates clockwise as shown by the arrow in FIG. 1, and the sheet 3 is sequentially fed out.
When the drug packaging sheet roll 1 rotates as described above, the magnets 5, 6 and 7 attached to the drug packaging sheet roll 1 rotate around the Hall element sensor 125 fixed to the fixed shaft 108, and eventually. When the magnets 5, 6 and 7 approach the Hall element sensor 125, the Hall element sensor 125 detects the magnetic force of the magnets 5, 6 and 7.

The change in the strength of the magnetic force detected by each Hall element sensor 125 at this time is as shown in FIG. 1 (b), and appears in the order of weak, medium, and strong. , The magnetic force appears in the order of strength.

On the other hand, the suspension path assumed when the left-handed roll for chemical packaging sheet roll 25 is forcibly attached to the support shaft 101 of the paper feeding unit 100 is as shown in FIG.
When the sheet 3 is pulled by the feed rollers 102 and 103, the drug packaging sheet roll 1 rotates counterclockwise as shown by the arrow in FIG. 2, and the sheet 3 is sequentially fed out.
The change in the strength of the magnetic force detected by each Hall element sensor 125 at this time is as shown in FIG. 2 (b), and appears in the order of strong, medium, and weak. Appears in the order of weak.
In the present embodiment, as shown in FIG. 2B, when the strength of the magnetic force detected by each Hall element sensor 125 appears in the order of strong, medium, and weak, a predetermined warning is issued, and the feed roller 102, 103 is stopped and the feeding of the sheet 3 is interrupted.
As a result, the dissipation of the drug and the wasteful consumption of the sheet 3 are avoided.

In the embodiment described above, a plurality of magnets having different sizes are adopted to make the state of the magnetic field generated on a specific surface different, and the Hall element sensor 125 detects the strength of the magnetic force in a fixed order. Adopted the configuration to be used.
As another configuration, the same effect can be obtained by using magnets having the same size but different strengths.

Further, as shown in FIG. 8A, the depth of embedding the magnet 26 may be changed to change the strength of the magnetic force detected by the Hall element sensor 125.
Further, as shown in FIG. 8B, the polarity and orientation of the magnet 26 may be changed to change the direction and strength of the magnetic force detected by the Hall element sensor 125. In FIG. 8B, magnets 26 having a posture in which the directions of the poles are completely exchanged are mixed, but magnets 26 in an inclined posture may be mixed.
As shown in FIG. 8C, shields 27 having different sizes may be arranged in the vicinity of the magnet 26 to change the direction and strength of the magnetic force detected by the Hall element sensor 125.

In the above-described embodiment, a configuration is adopted in which the motor brake 116 is engaged with the support shaft 101 to apply an appropriate tension to the seat 3. According to this configuration, it is recommended that the seat 3 is less likely to be loosened and that the ears are easily aligned when the seat 3 is folded in half. According to this configuration, it is difficult to apply braking when the support shaft 101 rotates in the reverse direction, but by adopting the drug packaging sheet roll 1 of the present embodiment, the phenomenon that the support shaft 101 rotates in the reverse direction can be detected. .. Therefore, a synergistic effect can be expected by combining with the present invention.
Further, in the above-described embodiment, the rotation angle sensor is formed by the Hall element sensor 125 and the three magnets 5, 6 and 7 provided on the winding core 2, and basic data for calculating the outer diameter dimension of the sheet roll 1 is obtained. be able to.
In the above-described embodiment, the three magnets 5, 6 and 7 have both a function as a rotation angle sensor and a function of detecting the rotation direction.

In the above embodiment, the winding core 2 is provided with three magnets 5, 6 and 7, but the number of magnets is arbitrary. Further, in the above-described embodiment, the three magnets 5, 6 and 7 are concentrated in a part of the region, but they may be evenly arranged on the entire surface.
The distance between the plurality of magnets 5, 6 and 7 does not have to be even.

The sheet 3 adopted in the above-described embodiment has a single strip shape, which is folded in half by the triangular plate 104 and deformed into a bag shape as described above, but has a strip shape previously folded in half. It may be a sheet or a strip-shaped sheet in which one side is pre-bonded and two sheets are stacked.

FIG. 9 is a schematic configuration diagram of a paper feeding unit 300 and a packaging unit 400 of a drug packaging device that uses a strip-shaped sheet 30 that has been folded in half in advance. The sheet 30 used in the present embodiment is folded in half as shown in FIGS. 9 (c) and 10 (c), and the front side sheet piece 35 and the front side sheet piece 36 have one long side. Has an overlapping structure with the open side 37 as an open side 37.
The members common to the paper feeding unit 100 and the packaging unit 200 of the drug packaging device shown in FIG. 1 are numbered the same.
The drug packaging sheet roll 31 used in the drug packaging device shown in FIG. 9 is a band-shaped sheet 30 folded in half in advance and wound around a winding core 2, and is wound in the same manner as in the previous embodiment. Three magnets 5, 6 and 7 are mounted on one end side of the core 2 in the axial direction, and a magnetic field is applied to the outside of the inner peripheral surface (inside the through hole 10 of the winding core 2) on one end surface side in the axial direction. It is something to generate.

In the paper feed unit 300, the drug packaging sheet roll 31 is rotatably mounted on the horizontally supported support shaft 101, and the sheet 30 pulled out from the drug packaging sheet roll 31 passes through the feed rollers 130, 131, 132. It is supplied to the next packaging unit 400.
Here, in the present embodiment, the postures of the feed rollers 130, 131, and 132 are gradually changed to the vertical posture toward the packaging portion 400, and the sheet 30 to be fed is twisted to be in the vertical posture from the horizontal posture. change.

Then, the unfolding guide 135 provided in the packaging portion 400 interrupts between the front side sheet piece 35 and the front side sheet piece 36 from the open side 37 on the upper side of the seat 30 in the vertical posture, and the upper side of the sheet 30. The sheet 30 is spread out in a "V" shape with the opening portion.

Further, the packaging portion 400 has a hopper 105 for charging the drug, and a predetermined amount of the drug is charged from the hopper 105 into the sheet 30 expanded in a "V" shape by the deployment guide 135. After that, the sheet 3 is heat-sealed in the width direction and both side edges at predetermined intervals by a heating roller 106 having a perforated cutter.

The suspension route of the sheet 30 of the drug packaging sheet roll 31 is as shown in FIG. Similar to the previous embodiment, when the sheet 30 is pulled, the sheet roll 31 for drug packaging rotates clockwise as shown by the arrow in FIG. 9, and the sheet 30 is sequentially fed out.
The change in the strength of the magnetic force detected by each Hall element sensor 125 at this time is as shown in FIG. 9 (b), and appears in the order of weak, medium, and strong. , The magnetic force appears in the order of strength.

By the way, there are right-handed and left-handed sheet rolls 31 and 40 for drug packaging in which the band-shaped sheet 30 folded in half is wound.
If the left-handed sheet roll 40 for drug packaging is erroneously attached to the paper feed section 300 described above, the long side of the sheet 30 is turned upside down when the sheet 30 is converted to the vertical posture as shown in FIG. The piece 35 and the front side sheet piece 36 cannot be pushed out in a "V" shape, and the drug cannot be wrapped.

The suspension path assumed when the left-handed drug packaging sheet roll 40 is mounted on the support shaft 101 of the paper feeding unit 300 by forcibly changing the threading method is as shown in FIG.
The change in the strength of the magnetic force detected by each Hall element sensor 125 at this time is as shown in FIG. 10 (b), and appears in the order of strong, medium, and weak. Appears in the order of weak.
Also in this embodiment, as shown in FIG. 10B, when the strength of the magnetic force detected by each Hall element sensor 125 appears in the order of strong, medium, and weak, a predetermined warning is issued and the sheet 30 The feeding is interrupted.
As a result, the dissipation of the drug and the wasteful consumption of the sheet 30 are avoided.

1,31 Sheet roll for drug packaging 2 Winding core 3,30 Sheet 5,6,7 Magnet 10 Through hole 26 Magnet 27 Shield

Claims (10)

A drug packaging sheet having a band-shaped sheet for drug packaging and a winding core, the winding core having a through hole penetrating in the axial direction at the center, and the sheet wound in a roll shape around the winding core. In a sheet roll for drug packaging, which is a roll and is rotatably attached to a device having a drug packaging function and the sheet is fed out.
Winding magnet the core are three mounting the magnet, which generates a magnetic field in the through hole of the winding core, there is Yowanaka strong strength of the magnetic field by the three magnets, The magnets are arranged at intervals in a part of the circumferential direction, and weak and strong are arranged on both sides of the magnet having a medium strength in between. .. Medicine packaging sheet roll according to claim 1 having different magnet strength is characterized in that a mixture. Medicine packaging sheet roll according to claim 1 or 2 different magnet sizes is characterized in that a mixture. Medicine packaging sheet roll according to any one of claims 1 to 3 embedded depth, characterized in that the different magnets are mixed. Medicine packaging sheet roll according to any one of claims 1 to 4, characterized in that in the vicinity of the magnet shield there Ru. Medicine packaging sheet roll according to any one of claims 1 to 5 attached posture is different from the magnet, characterized in that are mixed. Medicine packaging sheet roll according to any one of claims 1 to 6, characterized in that the orientation of the polarities are different magnets are mixed. The sheet roll for drug packaging according to any one of claims 1 to 7, wherein the magnet is mounted on one end side in the axial direction. A core of a drug packaging sheet roll around which a band-shaped sheet for drug packaging is wound, which has a through hole penetrating in the axial direction in the center and is rotatably attached to a device having a drug packaging function. In the core of the sheet roll for drug packaging where the sheet is unwound,
Magnet are three mounting, the magnet is intended to generate a magnetic field in the through hole, wherein there is Yowanaka little to the strength of the magnetic field by the three magnets, the magnets, the one circumferential A winding core of a sheet roll for drug packaging, which is arranged at intervals in a region of a portion and has weak strengths arranged on both sides of a magnet having a strength inside. The winding core of a sheet roll for drug packaging according to claim 9, wherein the magnet is mounted on one end side in the axial direction.

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