JP5294776B2 - Paper gripping unit of the packaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper clamp unit of a dispensing/wrapping apparatus capable of reducing a failure product caused by a biting of medicine into a heat-seal portion of a powder wrapping paper. <P>SOLUTION: This paper clamp unit 1 includes arms 15, 15 for use in folding a long powder wrapping paper 4 at its central part in a width direction to form a T-shaped heat seal protion 41 by a heat seal unit 3 and holding the powder wrapping paper 4 to close around a hopper 2 when medicine supplied through the hopper 2 inserted from an upper opened side immediately upstream of the heat seal portion 41 is fed into the powder wrapping paper 4, wherein the extremity ends of the arms 15, 15 are provided with interference members 18, 18 and the extremity ends of the interference members 18, 18 are formed into an L-shape in such a way that a clearance between the heat seal portion 41 and the hopper 2 with the heat seal unit 3 for the powder wrapping paper 4. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

In the present invention, a long wrapping paper is folded in half at the center in the width direction and conveyed in an open state, a heat sealing portion is formed on the conveyed wrapping paper, and the formed heat sealing portion When the medicine is introduced into the wrapping paper through the hopper inserted from the upper open side of the wrapping paper immediately upstream to the vicinity of the bottom, the open portion of the wrapping paper around the hopper is closed. The present invention relates to a paper gripping unit of a packaging device provided with an arm capable of sandwiching a paper wrapper.

  Generally, in hospitals, clinics, etc., drugs such as powders and tablets are dispensed according to a doctor's prescription, and individually or a combination of a plurality of types are enclosed in a sachet and provided to a patient.

  Conventionally, as a packaging device for performing such a medicine packaging operation, the packaging device includes a heat sealing unit that forms a heat sealing portion on the packaging paper in a state of being folded in two in the width direction and opening the upper part, A configuration is known in which a medicine is introduced into the wrapping paper through a hopper inserted on the upper opening side immediately upstream of the heat seal portion formed on the wrapping paper (for example, Patent Document 1). reference).

In addition, when the medicine is put into the wrapping paper from the hopper, a holding member for holding the wrapping paper on the upstream side of the hopper is provided to prevent the medicine from scattering from the upper open side of the wrapping paper. Are known (for example, see Patent Document 2).
JP 2001-31003 A JP 2004-115131 A

  However, with only the clamping member of the above-mentioned Patent Document 2, there is a possibility that the medicine is scattered from between the heat seal portion and the hopper, and the scattered medicine is bitten into the heat seal portion, resulting in a product defect. Such a problem cannot be solved by simply adding a clamping member that grips the wrapping paper on the downstream side of the hopper. FIG. 9 is an explanatory diagram of the mechanism of product failure. Hereinafter, a description will be given with reference to FIG.

  As shown in FIG. 9, in order to close the open portion of the wrapping paper 4 around the hopper 2, a first clamping pressure for clamping the wrapping paper 4 near the bottom on the upstream side of the wrapping paper 4. A case is assumed in which a point 51 and a second pinching point 52 for pinching the wrapping paper 4 on the upper open side of the wrapping paper 4 are provided.

  In this case, although there is no gap between the bottom of the wrapping paper 4 and the first pinching point 51, there is no gap between the second pinching point 52 and the heat sealing portion 41 on the upper open side of the wrapping paper 4. Significant gaps remain. Therefore, when the medicine is introduced from the hopper 2, the medicine is likely to be scattered from this gap.

  Then, when the scattered medicine is transported together with the wrapping paper 4 while adhering to the upper open side of the wrapping paper 4 and then heat-sealed, the scattered medicine bites into the heat seal portion. This will result in a product failure.

  The present invention has been made in view of such circumstances, and provides a paper gripping unit of a packaging device in which a medicine supplied from a hopper is bitten by a heat seal portion of the packaging paper and is less likely to cause a product defect. It is intended to do.

In the present invention, a long wrapping paper is folded in half at the center in the width direction and conveyed in an open state, a heat sealing portion is formed on the conveyed wrapping paper, and the formed heat sealing portion When the medicine is introduced into the wrapping paper through the hopper inserted from the upper open side of the wrapping paper immediately upstream to the vicinity of the bottom, the open portion of the wrapping paper around the hopper is closed. A paper gripping unit of a packaging apparatus having an arm capable of sandwiching a wrapping paper, wherein the arm extends obliquely upward from a bottom portion on the upstream side of the wrapping paper across the hopper, The base is configured to clamp the vicinity of the bottom of the upstream side of the wrapping paper, and the front end of the arm is configured to squeeze the vicinity of the heat sealing portion of the wrapping paper. The vertical seal part toward the top and the upper part of the wrapping paper from this vertical seal part The tip of the arm is formed below the horizontal seal portion extending upstream of the heat seal portion. It is characterized by being formed in a substantially L-shape that can be submerged .

  According to the present invention, the arm extends obliquely upward from the upstream bottom portion of the wrapping paper with the hopper interposed therebetween, and the vicinity of the upstream bottom portion of the wrapping paper is pinched by the base of the arm. At the same time, the vicinity of the heat seal portion of the wrapping paper is pinched by the tip of the arm, so that the gap between the heat seal portion and the hopper is reduced. Accordingly, it is difficult for the medicine to scatter from the gap between the heat seal portion and the hopper, and as a result, the possibility that the scattered medicine is bitten by the heat seal portion and product defects are reduced.

The heat seal part includes a vertical seal part that extends from the bottom to the top of the wrapping paper, and a horizontal seal part that extends from the vertical seal part along the upper edge of the wrapping paper to both the upstream side and the downstream side. The tip of the arm is formed in a substantially L-shape that can sink under the lateral seal portion extending upstream of the heat seal portion. When the part is submerged under the horizontal seal part extending upstream of the heat seal part or is in a close positional relationship, the gap between the heat seal part and the hopper is reduced. Therefore, the medicine is more unlikely to scatter from the gap between the heat seal portion and the hopper, and the possibility that the scattered medicine bites into the heat seal portion and causes a product defect is further reduced.

According to a second aspect of the present invention, it is preferable that the arm has an openable and closable tip portion around the base portion, and an interference member is provided at the tip portion and the base portion.

According to a second aspect of the present invention, the arm is openable and closable around the vicinity of the base, and the arm is closed because an interference member is provided at the tip and the base. By relieving the collision between the arm and the wrapping paper at the time, it becomes difficult for the medicine to scatter from the gap between the heat seal part and the hopper, and the scattered medicine is caught in the heat seal part, The possibility of causing defects is further reduced.

By the way, usually, the wrapping paper is often charged by contact with a transport roller during transport. For this reason, in the above-mentioned conventional example, the medicine supplied from the hopper and scattered by the static electricity charged on the wrapping paper is adsorbed and particularly easily adheres to the upper open side of the wrapping paper. Therefore, there is a possibility that the adhered medicine is bitten into the heat seal portion, resulting in a product defect. Therefore, as in the invention described in claim 3 , it is preferable that the interference member has a static elimination sheet pasted on the surface thereof.

According to the third aspect of the present invention, since the interference member has a neutralization sheet pasted on the surface thereof, even if the wrapping paper is charged, it is neutralized by this neutralization sheet. The supplied and scattered medicine will not adhere to the wrapping paper. Therefore, it is further less likely that the medicine is bitten in the heat seal part, and the possibility of causing a product defect is further reduced.

According to a fourth aspect of the present invention, it is preferable to provide an interference member that is softer than the interference member of the base portion or the tip portion at the intermediate portion of the arm.

According to the fourth aspect of the present invention, since the interference member that is softer than the interference member of the base portion or the tip portion is provided in the intermediate portion of the arm, the wrapping paper and the base portion, the intermediate portion, and the tip portion of the arm A good contact state can be ensured.

As in the invention described in claim 5 , it is preferable that the interference member in the intermediate portion is formed by sticking a static elimination sheet on the surface thereof.

According to the invention described in claim 5, since the interference member at the intermediate portion has a neutralization sheet attached to the surface thereof, even if the wrapping paper is charged, the neutralization sheet is neutralized. Further, the medicine supplied from the hopper and scattered is less likely to be caught in the heat seal portion, and the possibility of causing product defects is further reduced.

According to the present invention, the arm extends obliquely upward from the upstream bottom portion of the wrapping paper with the hopper interposed therebetween, and the vicinity of the upstream bottom portion of the wrapping paper is pinched by the base of the arm. At the same time, the vicinity of the heat seal portion of the wrapping paper is pinched by the tip of the arm, so that the gap between the heat seal portion and the hopper is reduced. Accordingly, it is difficult for the medicine to scatter from the gap between the heat seal portion and the hopper, and as a result, the possibility that the scattered medicine is bitten by the heat seal portion and product defects are reduced.
Moreover, the clearance between the heat seal portion and the hopper is reduced by the tip portion of the arm either under the horizontal seal portion extending to the upstream side of the heat seal portion or by being close to that. Therefore, the medicine is more unlikely to scatter from the gap between the heat seal portion and the hopper, and the possibility that the scattered medicine bites into the heat seal portion and causes a product defect is further reduced.

  FIG. 1 is a diagram showing a schematic configuration of a packaging device 10 including a paper gripping unit 1 according to an embodiment of the present invention.

  As shown in FIG. 1, the packaging device 10 according to this embodiment includes a heat seal unit 3 that forms a heat seal portion 41 on the wrapping paper 4, and a heat seal portion 41 that is formed on the wrapping paper 4. And a hopper 2 for feeding the medicine into the wrapping paper 4 from the upper open side immediately upstream.

  The wrapping paper 4 is a cellophane or glassine long paper body folded in half at the center in the width direction and wound around a wrapping paper roll (not shown). It is designed to be used.

  The hopper 2 is entirely made of stainless steel or synthetic resin and is formed in a funnel shape. The upper open end has a relatively wide square cross section, and the major axis direction is relatively directed to the conveying direction of the wrapping paper 4. And a lower open end having a narrow oval cross section. The hopper 2 is detachably attached to a device body (not shown) of the packaging device 10 disposed below the medicine supply device 500 (see FIG. 7), and is supplied from the medicine supply device 500 by a predetermined amount. The medicine received from the upper open end is dropped by gravity into the wrapping paper 4 from the lower open end.

  For this purpose, the lower open end of the hopper 2 is cut out in an upward arc shape in a side view so that it can be deeply pushed from the upper open side of the wrapping paper 4 to the vicinity of the bottom thereof. Thereby, when the hopper 2 is inserted from the upper open side of the wrapping paper 4, the opening angle of the wrapping paper 4 can be reduced, and the generation of wrinkles in the wrapping paper 4 can be prevented. The gap between the wrapping paper 4 and the hopper 2 is reduced to prevent the medicine from being blown up from this gap.

  The heat seal unit 3 has a heater part 32 capable of heating the wrapping paper 4 to a heat-sealing temperature and a heater receiving part 33 disposed opposite to the heater part 32 in a case 31 that can be freely opened and closed. The wrapping paper 4 containing the medicine is sandwiched between the heater portion 32 and the heater receiving portion 33 to be heat-sealed.

  Although the detailed configuration is known in Patent Document 1, the casing 31 can be rotated around a rotation shaft provided at the bottom thereof, and when the open lever (not shown) is pressed, the casing 31 can be rotated. 31 opens widely around its bottom rotation shaft, and the wrapping paper 4 into which the hopper 2 is inserted can be set as described above. The heater portion 32 and the heater receiving portion 33 are integrally attached to a lateral member that heat-seals the side edge portion of the overlapped wrapping paper 4 and an upstream side in the transfer direction from an intermediate position of the lateral member. It is made into the substantially T shape which consists of the vertical member which heat-seals the width direction of the wrapper 4. The heater 32 and the heater receiving portion 33 can be opened and closed by bringing them close to and away from each other using a cam mechanism (not shown) driven by a motor.

  That is, when the wrapping paper 4 is set, the heater section 32 and the heater receiving section 33 are slightly opened, and the wrapping paper 4 is closed by closing the heater section 32 and the heater receiving section 33. When the pressure is pressed, a horizontal seal portion 411 and a vertical seal portion 412 are formed on the wrapping paper 4, and a compartment is formed downstream of the vertical seal portion 412. In addition, a part of the horizontal seal part 411 is formed at a slightly upstream side edge part of the vertical seal part 412, and the horizontal seal part 411 suppresses the blow-up of the medicine charged from the hopper 2. Yes.

  On the downstream side of the heater section 32 and the heater receiving section 33, a pair of paper feed rollers 34 and 35 for conveying the wrapping paper 4 is provided so as to be rotatable about the vertical axis. These paper feed rollers 34 and 35 are driven to rotate by a stepping motor (not shown) so as to feed the wrapping paper 4 to the downstream side, and the wrapping paper 4 is fed by the paper feed rollers 34 and 35. The amount can be controlled by the number of rotations (step number) of the stepping motor. Note that the paper feed rollers 34 and 35 are provided on the downstream side of the heater portion 32 and the heater receiving portion 33 so that the slack of the wrapping paper 4 between the heater portion 32 and the heater receiving portion 33 is reduced. Because.

  FIG. 2 is a perspective view showing a detailed configuration of the paper gripping unit 1. 3 is a detailed view showing a state in which the left and right arms 15 and 15 of the paper gripping unit 1 are opened, in which (a) is a plan view, (b) is a side view, and (c) is a front view. 4A and 4B are detailed views showing a state in which the left and right arms 15 of the paper gripping unit 1 are closed. FIG. 4A is a plan view, FIG. 4B is a side view, and FIG.

  As shown in FIGS. 2 to 4, the paper gripping unit 1 includes a support portion 11 for supporting from a device body (not shown) of the packaging device 10, and a rotary solenoid 12 attached to the back surface of the support portion 11. The crank arm 13 is rotatably attached to the surface of the support portion 11 and is turned to the left and right by excitation / non-excitation of the rotary solenoid 12, and the roller 131 attached to the tip of the crank arm 13 is in contact with the crank arm 13. Left and right opening / closing parts 14, 14 attached so that the front end of the support part 11 can be opened and closed in a V shape, and both left and right arms 15, 15 attached to the left and right opening / closing parts 14, 14 in a cantilevered state, 15.

  Although the bases of the left and right opening / closing parts 14 and 14 are not clear in the figure, for example, they are meshed so that the left and right opening / closing parts 14 and 14 can be rotated in opposite directions, and at the bottom of the base part, A spring 19 urged in a direction to open the left and right opening / closing parts 14, 14 is locked. Further, the left opening / closing part 14 is provided with a base part of the left arm 15, and a protrusion 141 capable of contacting the roller 131 of the crank arm 13 from the middle part to the tip part of the left opening / closing part 14 is formed. Has been. As the crank arm 13 rotates, the roller 131 presses the projection 141 to close the left and right opening / closing parts 14 and 14 against the urging force of the spring 19, and the pressing state is released to release the spring 19. The left and right opening / closing parts 14, 14 are opened by an urging force.

  On the other hand, an engagement portion 142 and a guide portion 143 are attached to the right opening / closing portion 14, and a base portion of the right arm 15 is rotatably attached coaxially with the right opening / closing portion 14. And the latching | locking part 151 which can be latched to the said engaging part 142 is attached to the intermediate part of this right arm 15, By putting the nail | claw of this latching | locking part 151 in the hole of the engaging part 142, The right arm 15 rotates integrally with the right opening / closing part 14. On the other hand, when the claw of the locking part 151 is withdrawn from the hole of the engaging part 142, the right arm 15 is separated from the right opening / closing part 14, and is guided by the guide part 143 so as to be greatly opened. Thus, the wrapping paper 4 can be set.

  The left and right arms 15, 15 extend obliquely upward from the upper part of the base of the left and right arms 15, 15, and both are bent inward with a predetermined radius of curvature, and downward from the tip of the intermediate part And an L-shaped tip portion that is bent obliquely downward at the lower end.

  That is, the front ends of the left and right arms 15 and 15 have a pinching portion and a connecting portion connected to the pinching portion.

  The clamping portion extends in the conveying direction of the packaging paper 4 on the upstream side of the vertical seal portion 412 and on the bottom side of the packaging paper 4 with respect to the lateral seal portion 411 in the clamping state of the left and right arms 15 and 15. Formed as follows. This makes it difficult for the medicine to scatter from the gap between the heat seal portion 41 and the hopper 2, and reduces the possibility that the scattered medicine is bitten into the heat seal portion 41 to cause a product defect. The clamping portion is arranged near the upper portion of the wrapping paper 4 in the clamping state of the left and right arms 15, 15, thereby increasing the medicine storage space when the medicine is charged.

  The connecting portion is formed so as to extend vertically along the hopper 2 in a state where the left and right arms 15 and 15 are clamped. The connecting portion is connected to an intermediate portion between the left and right arms 15 and 15, and the lower end portion of the connecting portion is connected to the upstream end portion of the pinching portion. In the present embodiment, the connecting portion is also configured to pinch the wrapping paper 4 in a state where the left and right arms 15, 15 are pinched, thereby preventing wrinkles from occurring on the wrapping paper 4.

  Interference members 16, 17, and 18 are provided inside the base portion, the middle portion, and the tip portion of the left and right arms 15 and 15, respectively.

  The interference members 16 and 18 are both made by sticking a static elimination sheet on the surface of a silicon sponge, and the interference member 17 is made by sticking a static elimination sheet on the surface of a polyethylene sponge. And the front end side of the interference member 18 is formed in the L-shape which can sneak under the horizontal seal | sticker part 411 extended to the upstream of the heat seal part 41 of the wrapper 4. Here, silicon sponge is used for the interference members 16 and 18 and polyethylene sponge is used for the interference member 17 because the polyethylene sponge is softer than the silicon sponge. This is to ensure a good contact state with the base part, the intermediate part, and the tip part of the 15,15. Further, in each of the interference members 16, 17, and 18, the static elimination sheet on the side facing the packaging paper 4 is for removing static electricity charged on the packaging paper 4. As this static elimination sheet, for example, Sanderlon (registered trademark) made of a conductive fiber material containing copper ions can be used by cutting into shapes corresponding to the application locations.

  By the way, since the wrapping paper 4 is normally charged by contact with a transport roller during transport, in the conventional example, the medicine that has been supplied from the hopper 2 by the static electricity charged on the wrapping paper 4 is swollen. The adsorbed medicine is caught in the heat seal portion 41, which may cause a product defect. On the other hand, in the present embodiment, since the static elimination sheets as described above are attached to the surfaces of the interference members 16, 17, 18 at the base, middle, and tip of the left and right arms 15, 15 of the paper gripping unit 1, respectively. These problems are greatly reduced by rapidly reducing the charging potential of the wrapping paper 4 due to the excellent conductivity and corona discharge properties of these charge removal sheets. Since the static eliminating sheet does not require grounding, it does not interfere with the opening / closing operation of the arms 15 and 15 and is very convenient.

  FIG. 5 is an explanatory view showing a state in which the hopper 2 is provided between the arms 15 and 15 of the paper gripping unit 1, and FIG. 6 is a diagram illustrating the arm 15 and 15 for removing the hopper 2 from between the arms 15 and 15 of the paper gripping unit 1. FIG. 7 is a functional block diagram showing a control system related to the packaging operation of the packaging device 10, and FIG. 8 is a flowchart showing the packaging operation related to the packaging device 10. is there.

  As shown in FIG. 7, for example, the control device 600 is integrally incorporated in the medicine supply device 500 together with the packaging device 10, and includes a CPU 601, a RAM 603, a ROM 604, a display unit 605, and an input unit 606. It has.

  The ROM 604 stores control programs for the packaging device 10 and the medicine supply device 500, various preset data, and the like, and the RAM 603 temporarily stores data. The display unit 605 includes an LCD or the like, and displays various messages to the user. The input unit 606 is for inputting various user instructions, prescription data, and the like.

  The CPU 601 follows the various instructions from the input unit 606, prescription data, and the like, and the control program stored in advance in the ROM 604, the paper gripping unit 1, the heat sealing unit 3, and the paper feed roller 34 of the packaging device 10. , 35 and the medicine supply device 500, and various messages and the like are displayed on the display unit 605.

  Hereinafter, the packaging operation of the packaging device 10 will be mainly described with reference to FIG.

  First, in FIG. 8, the preparatory work of the packaging apparatus 10 as an initial setting is performed (step S1). Specifically, a wrapping paper roll (not shown) is set at an appropriate position of the apparatus main body of the wrapping apparatus 10. An unillustrated open lever of the housing 31 of the heat seal unit 3 is pressed. Then, the housing 31 of the heat seal unit 3 opens so as to rotate about the rotation shaft at the bottom thereof, the heater portion 32 and the heater receiving portion 33 are separated from each other, and the paper feed rollers 34 and 35 are then separated. Separate them. The hopper 2 is removed from the apparatus main body.

  Next, the paper grip lock of the locking portion 151 of the paper gripping unit 1 is slid forward, and the claw of the locking portion 151 is escaped from the hole of the engaging portion 142. Then, from the state shown in FIG. 5, as shown in FIG. 6, the right arm 15 is guided by the guide portion 143 and falls to the right side.

  The wrapping paper 4 fed out from the wrapping paper roll is passed through the inside of the heat seal unit 3, and the hopper 2 is inserted between the wrapping paper 4 and returned to the original setting position. Then, the right arm 15 of the paper gripping unit 1, the paper feed rollers 34 and 35 of the heat seal unit 3, and the housing 31 are sequentially returned to their original states to be locked.

  When the start switch (not shown) of the control device 600 is turned on after the above preparation is completed, the packaging operation is started (YES in step S2). Then, the paper feed rollers 34 and 35 of the heat seal unit 3 are rotated to move the wrapping paper 4 to the set position (step S3). This amount of movement is controlled by the number of rotations (step number) of a stepping motor (not shown) that rotationally drives the paper feed rollers 34 and 35.

  Next, the heater section 32 and the heater receiving section 33 of the heat seal unit 3 are closed, and the both sections overlap each other, thereby pinching the wrapping paper 4 (step S4). Then, a horizontal seal portion 411 and a vertical seal portion 412 are formed on the wrapping paper 4, and a compartment is formed on the downstream side of the vertical seal portion 412. Note that a part of the horizontal seal portion 411 is formed on the side edge portion slightly upstream of the vertical seal portion 412.

  Next, the left and right arms 15, 15 of the paper gripping unit 1 are closed (step S5). Specifically, the rotary solenoid 12 is first excited. Then, the rotary solenoid 12 rotates the crank arm 13 clockwise as viewed from the back side against the built-in spring. The roller 131 of the crank arm 13 rises while abutting against the protrusion 141 of the left opening / closing part 14, thereby pressing the left opening / closing part 14 inward. Then, since the bases of the left and right opening / closing parts 14 and 14 are engaged with each other, the left and right opening / closing parts 14 and 14 close against the urging force of the spring 19 as a result of operating in opposite directions.

  The left and right arms 15 and 15 are also closed in conjunction with the left and right opening / closing parts 14 and 14. Then, the interference member attached to the intermediate part of the left and right arms 15 and 15 through the silicon sponge and the static elimination sheet of the interference members 16 and 18 attached to the distal end and the base of the left and right arms 15 and 15, respectively. As a result of sandwiching the wrapping paper 4 through the polyethylene sponge 17 and the charge removal sheet, the gap around the hopper 2 is reduced, and static electricity charged in the wrapping paper 4 is discharged.

  Thereafter, the medicine is supplied from the medicine supply device 500 (step S6). Then, the medicine is supplied into the wrapping paper 4 through the hopper 2. Specifically, the medicine is put into the bottom of the wrapping paper 4 from the lower open end of the hopper 2. At this time, the gap between the hopper 2 and the horizontal seal portion 411 by the heat seal unit 3 becomes very small by sandwiching the wrapping paper 4 with the interference members 18, 18 at the front ends of the left and right arms 15, 15. Therefore, there is almost no possibility that the medicine will blow up from the gap.

  Next, the left and right arms 15, 15 of the paper gripping unit 1 are opened (step S7). Specifically, the rotary solenoid 12 is first de-energized. Then, the rotary solenoid 12 rotates the crank arm 13 counterclockwise as viewed from the back side by the biasing force of the built-in spring.

  When the roller 131 of the crank arm 13 moves away from the protrusion 141 of the left opening / closing part 14, the left and right opening / closing parts 14, 14 are opened by the urging force of the spring 19 as a result of releasing the pressing state. The left and right arms 15 and 15 are also opened in conjunction with the left and right opening / closing parts 14 and 14.

  Next, the clamping pressure of the wrapping paper 4 is released by opening the heater portion 32 and the heater receiving portion 33 of the heat sealing unit 3 (step S8). Thereafter, the process returns to step S2.

  And the packaging operation | work can be performed continuously by repeating said step S2-S8. When the wrapping paper 4 runs out (NO in step S2), the wrapping operation ends. However, the packaging operation can be performed again by performing the above preparation operation.

  As described above, according to the present embodiment, the interference members 18 and 18 are provided at the front end portions of the left and right arms 15 and 15 of the paper gripping unit 1, and the front end sides of these interference members 18 and 18 are arranged on the wrapping paper 4. Since it is formed in an L shape that can sink into the lower part of the horizontal seal part 411, it is difficult for the medicine to scatter from the gap between the heat seal part 41 and the hopper 2. There is very little risk of product failure due to being bitten by 41.

  Further, even if the wrapping paper 4 is charged, the wrapping paper 4 is applied to the wrapping paper 4 by the charge eliminating sheets of the interference members 16, 17, and 18 attached to the base portion, the intermediate portion, and the tip portion of the left and right arms 15 and 15, respectively. Charged static electricity is removed efficiently. That is, in the case where such a static elimination sheet is not provided, there is a possibility that the medicine supplied from the hopper 2 due to static electricity is adsorbed and the adsorbed medicine is caught in the heat seal portion 41, resulting in a product defect. However, when a static elimination sheet is provided as in the present embodiment, the risk is almost eliminated.

  In the above embodiment, the interference members 16, 17, and 18 are provided at any of the base portion, the intermediate portion, and the tip portion of the left and right arms 15, 15 of the paper gripping unit 1. It may be omitted. Conversely, a plurality of interference members 17 may be provided, and furthermore, this interference member 17 may be provided so as to be continuous between the other interference members 16 and 18.

  In the above embodiment, the wrapping paper roll is used to fold the wrapping paper 4 at the center in the width direction. However, the wrapping paper roll is folded into two at the center in the width direction. It is also possible to use what is not made and fold it in the apparatus.

It is a figure which shows schematic structure of the packaging apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the detailed structure of a paper grip unit. It is detail drawing which shows the state which the arm of the paper gripping unit opened, (a) is a top view, (b) is a side view, (c) is a front view. It is detail drawing which shows the state which the arm of the paper gripping unit closed, (a) is a top view, (b) is a side view, (c) is a front view. It is explanatory drawing which shows the state equipped with the hopper between the arms of the paper gripping unit. It is explanatory drawing which shows the state which laid down one side of the arm in order to remove a hopper from between the arms of a paper grip unit. It is a functional block diagram which shows the control system which concerns on the packaging operation | movement of a packaging apparatus. It is a flowchart which shows the packaging operation | movement which concerns on a packaging apparatus. It is explanatory drawing of the mechanism of a product defect.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Packaging apparatus 1 Paper grip unit 11 Support part 12 Rotary solenoid 13 Crank arm 131 Roller 14 Opening / closing part 15 Arm 16, 17, 18 Interference member 19 Spring 2 Hopper 3 Heat seal unit 31 Case 32 Heater part 33 Heater receiving part 34 , 35 Paper feed roller 4 Packaging paper 41 Heat seal unit 411 Horizontal seal unit 412 Vertical seal unit 500 Drug supply device 600 Control device

Claims (5)

A long wrapping paper is folded in half in the center in the width direction and conveyed with the top open, and a heat seal is formed on the conveyed wrapping paper, immediately upstream of the formed heat seal When the medicine is put into the wrapping paper through the hopper inserted from the upper open side to the bottom of the wrapping paper, the wrapping paper is sandwiched so as to close the open portion of the wrapping paper around the hopper. A paper gripping unit of a packaging device having a pressureable arm,
The arm extends obliquely upward from the bottom of the upstream side of the wrapping paper with the hopper interposed therebetween, and the base of the arm nips the vicinity of the bottom of the upstream side of the wrapping paper, and at the tip of the arm It is configured to pinch the vicinity of the heat seal part of the wrapping paper ,
The heat seal portion includes a vertical seal portion that extends from the bottom to the top of the wrapping paper, and a horizontal seal portion that extends from the vertical seal portion to both the upstream side and the downstream side along the upper edge of the wrapping paper. It is formed in an approximate T shape,
The paper gripping unit of the packaging device , wherein the tip end portion of the arm is formed in a substantially L-shape that can sink under a horizontal seal portion extending upstream of the heat seal portion . The paper grip of the packaging device according to claim 1, wherein the arm has an openable and closable tip at the vicinity of the base, and an interference member is provided between the tip and the base. unit. The paper gripping unit of the packaging apparatus according to claim 2, wherein the interference member has a static elimination sheet attached to a surface thereof. 4. The paper gripping unit of a packaging apparatus according to claim 2, wherein an interference member that is softer than the interference member at the base portion or the tip portion is provided at an intermediate portion of the arm. 5. The paper gripping unit for a packaging apparatus according to claim 4, wherein the interference member at the intermediate portion has a charge eliminating sheet attached to the surface thereof.

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