JPH0985696A - Chip piece blanking device for ptp sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a cut-off line by arranging a molding male form block having a blanking punch and a punch hole for receiving a punch in the longitudinal direction so as to form at least a row, and providing a molding female form block which blanks out a chip piece in cooperation with the molding male form block and a drive mechanism which is linked therewith and relatively moves. SOLUTION: A drive shaft 63 of a drive mechanism 6 is rotated so as to raises a main shaft and a molding male form block 5 provided thereon. When the molding male form block 5 is raised, its blanking punches 53a, 53b are raised so as to blank a chip from a packaging film in cooperation with a molding female form. When a punch for blanking blanks out a chip so as to enter in the punch holes 43a, 43b of the molding female form block 4, molding blades 56, 58 can form a cut-off line in a position between a pocket (p) in the adjacent to a packaging film in cooperation with the molding female form block 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blister packaging sheet for punching a star-shaped small piece for rounding so as to prevent an edge from being formed around the pocket when it is cut into each pocket unit. Regarding the device.

[0002]

2. Description of the Related Art Generally, a blister packaging sheet (hereinafter referred to as a PTP sheet), as shown in FIG.
A large number of pockets p are formed, and chemicals such as tablets are loaded in the pockets, and a cover film is put on and sealed from above. Then, perforations or groove-shaped cuts c and d extending in the length direction and the width direction of the PTP sheet are formed in the PTP sheet S at the positions between the pockets, and the PTP sheet is formed as shown in FIG. 10B. It is designed so that each pocket can be separated. Thus P
When the TP sheet is separated in pocket units, the TP sheet becomes a square shape, and edges e of about 90 ° are formed at the four corners.

By the way, when drinking tablets packed in a PTP sheet, if the PTP sheet S is shown in FIG.
As shown in, even if it is cut into pockets, the cover film is torn and the tablets are taken out, but sometimes the PTP sheet (hereinafter referred to as a sheet piece) s mistakenly cut into pockets is accidentally swallowed. It may happen. In such a case, the edges e at the four corners of the sheet piece s pierce the inner wall of the throat so that it cannot be easily removed, and a surgical operation may be performed. Such accidents are likely to occur especially when the tablets are small and therefore the pockets and sheet pieces are small.

In order to prevent such an accident, PTP
When the sheet pieces are separated from the sheet, as shown in FIG.
As shown in [A] and disclosed in Japanese Utility Model Laid-Open No. 3-84773, a PTP sheet having a shape in which corresponding portions of the sheet are punched has been developed so that rounded corners r are formed. A device for punching is also proposed. As an apparatus for rounding the four corners of the PTP sheet to remove the edges, for example,
Japanese Patent Laid-Open No. 31930/1993 also discloses a device for removing the edges by rounding the four corners of a small piece of a sheet separated from a PTP sheet (B) JP-A-51-13799
There is one disclosed in Japanese Unexamined Patent Publication No. 3 (KOKAI).

Of these, the device (a) improves the punching die of the punching device for punching a PTP sheet from a film connected in a strip shape, and tilts the punching device as a whole to form a plurality of pockets. PTP sheet including 3 PTP sheets including at once
The four corners of the sheet are rounded so that star-shaped scraps (hereinafter referred to as chip pieces) generated at the same time as punching the PTP sheet are dropped along the inclined surface of the punching die. However, with this device, one P
It is not possible to round the four corners of a small piece of sheet that is cut into each pocket of the TP sheet. Further, since the punching device has to be tilted, it is necessary to change the arrangement of other devices of the blister packaging machine, and there is a problem that the existing device cannot be applied as it is. On the other hand, the device (b) uses a punching blade formed in a roll by passing a film between a pair of punching rolls,
At the same time as punching P sheets one by one, at the same time, the chip pieces are also punched from the corresponding positions in order to round the four corners of each small piece. However, in this device, the PTP sheet and the chip piece as a product are punched at the same time and fall from the punching device.
There is a problem that a work for separating the P sheet and the chip pieces is required.

[0006]

DISCLOSURE OF THE INVENTION The problem to be solved by the present invention is to provide a package before punching as a PTP sheet so that when the sheet piece is separated from the PTP sheet, roundness is formed at the four corners of the sheet piece. PTP that can punch out the chip from the corresponding part of the film and can process the punched chip surely and easily
An object of the present invention is to provide a sheet chip punching device.

[0007]

SUMMARY OF THE INVENTION The present invention provides a chip piece punching apparatus for punching a chip piece from a PTP sheet to form a rounded corner of a sheet piece defined by each pocket of the PTP sheet. At least the longitudinal direction of a plurality of forming blades arranged orthogonally to the longitudinal direction and the width direction of the PTP sheet so as to form a severing line for severing the small sheet pieces on the packaging film at a position between the adjacent pockets of the sheet. A forming male die provided with punching punches at positions between the forming blades and outer ends of the forming blades at both ends thereof, and at least one row of punching holes for receiving the punching punches are arranged side by side along the longitudinal direction. And a molding female die for punching out a chip piece in cooperation with the molding male die, and a molding male die and a molding female die, which are connected to each other. It is constructed and a driving mechanism for relatively moving with respect to the other one of. In the above-mentioned PTP sheet chip punching device, the molding male die further comprises a punching punch at a position of an outer end of the molding blades arranged in the width direction, and the molding female die further comprises:
A punch hole may be provided to receive the punch on the outer edge. Further, the punching punch and the molding blade of the molding male mold extend upward, the molding female mold is disposed and fixed above the molding male mold, and the molding male mold can move up and down with respect to the molding female mold. May be.

[0008]

In the chip punching device having the above construction, when the strip-shaped packaging film filled with the goods in the pocket and sealed with the cover film is passed between the molding female mold and the molding male mold and stopped at a predetermined position, One of the molding female mold and the molding male mold moves toward the other. Then, the punching punch of the molding male die punches the chip pieces from the packaging film and enters the punch holes. After that, a parting line is formed on the packaging film by the forming blade. The packaging film in which the chip pieces are punched out and the parting line is formed is punched one by one into PTP sheets by a punching device at another position on the downstream side.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A chip piece punching device according to an embodiment of the present invention will be described below with reference to the drawings. 1 to 3, the chip punching apparatus of the present embodiment is indicated by 1 as a whole. This chip punching device 1
Is integrated with a notch forming device that forms a parting line for separating the small pieces of each pocket from the PTP sheet before the PTP sheet is punched out from the packaging film after the packaging of the goods. The chip punching apparatus 1 is fixed to a frame 11 of a blister packing machine or the like, which is disposed below the transfer path of the packaging film f, and is fixed to the upper portion of the bracket 2 by a pair of columns 3 separated from each other. A molding female die 4, a molding male die 5 that is vertically movable between the bracket 2 and the molding female die 4, and a drive mechanism 6 that drives the molding male die. In this example, the number of rows of pockets in which five pockets are formed in the width direction of the packaging film is set to 2 and the number of rows is 1.
The case of punching into one PTP sheet will be described.

A bearing portion 22 is provided substantially at the center of the upper wall 21 of the bracket 2, and a bearing hole 23 is formed in the bearing portion 22 so as to vertically penetrate therethrough. A bearing portion 26 is formed on the vertical wall 25 of the bracket 2 fixed to the frame 11. A main shaft 61 constituting the drive mechanism 6 is vertically movably inserted into the bearing hole 23, and a mounting plate 62 for mounting the molding male die 5 is fixed to the upper end of the main shaft 61. A drive shaft 63 is inserted into the bearing hole 27 of the bearing portion 26 and is rotatably supported by the bearing 28. At one end (the left end in FIG. 1) of the drive shaft 63, a roller 64 whose rotation axis is an axis decentered by α from the rotation axis of the drive shaft 63 is rotatably attached. The roller 64 is received in a groove 65 formed on the lower side surface of the main shaft 61. Therefore, when the drive shaft 63 rotates, the main shaft 61 moves up and down with a stroke twice the eccentricity α of the roller 64. A gear 66 is attached to the other end of the drive shaft 63. The gear 66 meshes with a gear driven by an electric motor, a rack driven by a cylinder, or a gear driven by a combination of a cam and a cam follower (neither is shown).

A pair of columns 3 are vertically fixed to the upper wall 21 of the bracket 2 so as to be spaced in the width direction of the packaging film f and in the longitudinal direction of the punched PTP sheet s so that the packaging film is interposed therebetween. ing. A molding female die 4 is detachably fixed to the upper end of the column 3 by a known method.
The molding die 4 is formed as a flat rectangular plate 41. A plurality of punch holes 42 and 43 (43a, 43b) are formed at a predetermined pitch p at a position on the center line OO extending in the longitudinal direction (left and right direction in FIG. 3) of the center of the molding die 4 (this embodiment). In the example, a total of 6) are formed. Of these punch holes, two punch holes 43 (43a, 43a on both ends) are provided.
Although the plane shape of b) is different from the plane shapes of the other four punch holes 42, all of them are matched with the cross-sectional shape of the punch to receive the corresponding punch of the forming male die 5 described later. There is. As can be seen from FIG. 4A, the plan shape of the punched holes 42 is four concave curves 4
4 is arranged in a rhombus shape. Further, as seen from FIG. 4B, the plan shape of the punch hole 43a is
It has a shape in which two concave curves 44 and one straight line 45 continuous to the curves are arranged in a triangular shape. Further, as seen from FIG. 4C, the punch hole 43b has a planar shape in which two concave curves 44 and one straight line 45 in contact with the curves are arranged in a triangular shape. Each of the punch holes 42 and 43 has a size such that the punching punch is exactly received on the lower surface side of the female molding die, and is large on the upper surface side so that the punched chip pieces can be freely formed. A guide hole 46 is formed near the position where the female molding die 4 is fixed to the column 3, and a guide rod is arranged and fixed in the guide hole at the end of the mounting plate 62 of the drive mechanism 6 in parallel with the column 3. I have received 68. The punch hole 43a is 4
It is larger than 3b in order to cope with the positional deviation of the punching line in the punching process as the PTP sheet performed in the downstream process.

The molding male die 5 is removably fixed to the upper surface of the mounting plate 62 of the drive mechanism 6 by a known method so that the longitudinal center line thereof coincides with the longitudinal center line OO of the molding female die. ing. The molding male die 5 has a plurality of punching punches 52 and 53 (53a, 53b) on the center line in the longitudinal direction.
Are provided at a predetermined pitch p. The punching punch 52 is aligned with the position of the punching hole 42 so as to be received in the punching hole 42 of the female molding die 4, and the punching punches 53 (53a, 53b) are respectively punched holes 43 (43a). , 43b) are aligned with the punch holes 43 (43a, 43b) so that they can be received in
Both punching punches are formed integrally with the base portion 51 and extend vertically upward with respect to the base portion. The forming male die 5 is further provided with a forming blade 56 between the punching punches adjacent to each other at a position on the center line in the longitudinal direction for forming a separating line for separating a small piece of a sheet from the PTP sheet in each pocket. Has been. The forming blades 56 are attached to the punching punches 52 and 53 by a known method so that their positions can be adjusted in the vertical direction. The position of the upper edge, which is the tip of each forming blade 56, is the punching punches 52 and 53 (53a, 53a,
53b) is located below the upper end, and the upper end of the punching punch punches the chip from the packaging film into the punch hole of the molding female die, and then the cutting edge of the molding blade 56 forms a cutting line on the packaging film. It is like this.

The molding male die 5 further includes each punching punch 52 and one punching punch 5 (right side in FIG. 2).
Support portions 57, which are arranged on both sides of the punching punch 52, are formed integrally with the base portion 51 on a line passing through the center of 3b and extending at right angles to the longitudinal centerline. Then, between the supporting portion 57 and the punching punch 52 and between the supporting portion and one punching punch 53, another forming blade extending in the width direction of the PTP sheet to be punched (the feeding direction of the strip-shaped packaging film). 58 are provided. This forming blade 58 is also punched by the known method.
3, the support portion 57 is attached so that the position can be adjusted in the vertical direction. When the cutting lines formed on the PTP sheet are perforated, the upper edges of the forming blades 56 and 58 are saw-tooth-shaped, and the cutting lines have a thickness of 80 to 80 of the packaging film. When forming a slit that cuts in up to 90%, the upper edge extends straight. Since these may be blades having a conventional structure, detailed description thereof will be omitted. Further, the pitch P is the same as the pitch between adjacent separating lines formed on the PTP sheet.

In the chip punching device having the above structure,
When the forming male die 5 is pulled down with respect to the forming female die 4 by the drive mechanism 6, the packaging film f having completed the filling and sealing of the product is sent to the lower side of the forming female die 4 and is adjacent in the transporting direction of the packaging film. The packaging film is stopped in a state where the center position between the pockets coincides with the center line in the longitudinal direction of the molding die 4. Then, the drive shaft 63 of the drive mechanism 6 rotates, for example, about 180 ° to raise the main shaft 61 and the molding male die 5 provided on the main shaft. When the molding male die 5 moves up, the punching punches 52 and 53 (53a, 5a) of the molding male die 5 are moved.
3b) rises and cooperates with the molding die 4 to punch chips from the packaging film. The punch for punching punches out the chip to punch holes 42 and 43 (43a, 43a) of the molding die 4.
After entering b), the forming blades 56 and 58 cooperate with the forming die 4 to form a parting line, for example a perforation or slit, between the pockets p adjacent to the packaging film.
The punched chips are received in the punch holes 42 and 43. After that, when the drive shaft 63 is further rotated by 180 °, the molding male die is lowered and the packaging film is fed by a predetermined distance. In the same manner, chip punching and separation line molding are simultaneously performed in the same manner. As shown in FIG. 5, the PTP sheet has a longitudinal direction (width direction of the packaging film) on the packaging film on which the chips have been punched and the separation lines have been formed.
A separating line c extending in the direction of and a separating line d extending in the width direction of the PTP sheet (the transport direction of the packaging film) are formed, and after the chips are punched out between the separating lines c in the longitudinal direction and at the outer ends of the separating lines at both ends. Holes h and i are formed. The packaging films having the holes h and i and the separating lines c and d formed in this manner are punched one by one into PTP sheets by a punching device arranged on the downstream side. In this case, in order to punch out a PTP sheet having a shape as shown in FIG. 11, it is necessary to punch out the hatched portion in the figure with a punching device. The chip pieces generated by punching are accumulated in each punch hole of the molding die, but in order to remove the accumulated chip pieces, for example, a cover is often provided on the molding die, which is limited by the cover and the molding die. The space to be removed may be removed by vacuuming.

FIGS. 6 and 8 show a modified female mold 4a and a modified male mold 5a. In this modified example, the punching punch 57a is constituted by what acts as a supporting portion for the forming blade in the previous embodiment. That is, the punching punches 57a at both ends extend to the same height position as the punching punch 52 at the center. A punch hole 49 for receiving the punch 57a is formed in the molding female die 4a. The planar shapes of the punch hole 49 and the punch 57a are the same as those of the punch hole 43a and the punch 53a. The other points are the same as those in the above-mentioned embodiment. When the chip is punched out from the packaging film with the molding male die and the molding female die of this embodiment, the hole k is formed outside the holes h, i, j together with the cut lines c and d, as shown in FIG. The hole k has substantially the same shape and size as the hole i so that no inconvenience will occur even if the punching line L shifts when punching as a PTP sheet in a later step.

[0016]

According to the present invention, the packaging film can
Since a small star-shaped chip is punched out at the same time as a perforation or slit-like separating line is formed on the packaging film at the position before punching the P sheet, the chip is mixed with the PTP sheet as a product at the punching stage of the PTP sheet. Can be prevented from entering, and the packaging work (wrapping a plurality of PTP sheets as one package) performed in the subsequent process can be performed smoothly.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of a chip punching device of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA of FIG.

FIG. 3 is a top plan view of the device of FIG.

4A to 4C are enlarged plan views showing the shapes of punch holes of a female molding die.

5A and 5B are views showing the arrangement and shape of holes punched by the chip piece punching device shown in FIG. 1 and cut-off lines formed.

FIG. 6 is a cross-sectional view showing a modified example of a molding male die and a molding female die.

FIG. 7 is a plan view of a modified example of the molding female die.

8 is a cross-sectional view of the molding male die and the molding female die of FIG.

FIG. 9 is a plan view showing the arrangement and shape of holes and separation lines of the packaging film formed by the molding male mold and the molding female mold shown in FIGS. 6 to 8;

FIG. 10 is a plan view of a conventional PTP sheet in which roundness is not formed at the four corners of the sheet piece.

FIG. 11 is a plan view of a PTP sheet which is a target of the present invention and in which roundness is not formed at the four corners of the sheet piece.

[Explanation of symbols]

1 Chip Piece Punching Device 2 Bracket 3 Struts 4 and 4a Molding Female Mold 41 Plate 42, 43 and 49
Punch hole 5, 5a Molding male mold 52, 53 57a Punching punch 6 Drive mechanism 61 Main shaft 63 Drive shaft 64 Roller f Packaging film S PTP sheet s Sheet small piece p Pocket c, d Separation line h, i, j, k
Hole

Claims (3)

[Claims] 1. A PTP so as to form a rounded corner of a sheet piece defined by each pocket of the PTP sheet.
In a chip piece punching device for punching a chip piece from a sheet, in a longitudinal direction and a width direction of the PTP sheet so as to form a separating line for cutting the sheet piece on the packaging film at a position between adjacent pockets of the PTP sheet. A forming male die having punching punches provided at least between positions of the forming blades arranged in the longitudinal direction among the plurality of forming blades arranged orthogonally and positions of outer ends of the forming blades at both ends thereof, and the punching punch. A forming female die having at least one row of receiving punch holes arranged side by side along the longitudinal direction and punching out a chip piece in cooperation with the forming male die, and the forming male die and the forming female die, which are connected to each other. And a drive mechanism that moves one of the above relative to the other, and a PTP sheet chip punching device. 2. A chip piece punching device for a PTP sheet according to claim 1, wherein the shaping male die further comprises a punching punch at a position of an outer end of the shaping blades arranged in the width direction. A chip piece punching device, wherein the female die further comprises a punch hole for receiving a punching punch at the outer end. 3. The PTP sheet chip piece punching device according to claim 1, wherein the punching punch and the shaping blade of the molding male die extend upward, and the molding female die is above the molding male die. A chip piece punching device, which is arranged and fixed to the mold, and in which the molding male die can move up and down with respect to the molding female die.