KR102154768B1 - Cutting device and blister packaging machine - Google Patents

Abstract

A cutting device capable of facilitating an assembly operation of a rotating blade or an assembly disassembly operation, and a blister packaging machine having the same are provided. In the blister packaging machine, the cutting device 19 for separating the blister pack from the blister film 35 includes a lower rotating shaft 62 and an upper rotating shaft 72 disposed vertically with the blister film 35 interposed therebetween. ), and a drive motor 53 that drives them to rotate, a lower rotary blade 66 mounted on the lower rotary shaft 62, and a pair of a pair of upper rotary blades mounted on the upper rotary shaft 72, corresponding to the lower rotary blade 66 Each of the upper rotary blades 76, a coil spring for pressing the pair of upper rotary blades 76, and a pair of upper rotary blades 76 are installed on opposite surfaces of each other, and have an inclined cam surface inclined with respect to the axial direction. By providing a spacer and displacing the pair of upper rotary blades 76 in a relative rotational motion, the gap in the axial direction of the pair of upper rotary blades 76 is variable.

Description

Cutting device and blister packaging machine

The present invention relates to a cutting device for cutting a strip-shaped work along a conveyance direction, and a blister packaging machine provided with the same.

In general, a blister pack is composed of a container film in which a pocket portion capable of accommodating an object is formed, and a cover film attached to the container film by sealing the opening of the pocket portion in which the object is accommodated.

In such a blister pack, a step of forming a pocket portion while conveying a band-shaped container film, a step of filling the pocket portion with an object to be accommodated, a step of attaching a cover film to the container film to seal the opening side of the pocket portion And it is manufactured through a process of separating a blister pack, which is a final product, from a band-shaped blister film formed by attaching both films.

And, in the process of separating the blister pack from the blister film, generally, a slitter type cutting device (slitter device) that cuts the blister film along the conveyance direction is used.

Such a cutting device has a configuration in which an upper rotary blade provided on an upper side of a belt-shaped work to be conveyed and a lower rotary blade provided on a lower side of the work overlap each other and rotate in a reverse direction, thereby cutting a work between both rotary blades.

However, if the blade edge of the upper rotary blade and the blade edge of the lower rotary blade are overlapped with each other, such as when cutting a workpiece, there is a concern that workability may be deteriorated when performing maintenance work such as replacement or cleaning of the rotary blade.

On the other hand, in recent years, a cutting device capable of separating an upper blade mechanism portion having an upper rotary blade and a lower blade mechanism portion having a lower rotary blade vertically has also been found (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-131822

By the way, in general, both upper and lower rotary blades are assembled so that one rotary blade is pressed against the other rotary blade in the direction of the rotation axis by a pressing means such as a spring. Therefore, if the upper and lower rotary blades are forcibly separated in the vertical direction (assembly and released) as it is in this state, there is a fear that the blade ends of the rotary blade will come off. Of course, in the cutting device having the above configuration, the same problem may occur even when assembling the upper and lower rotating blades in the vertical direction.

Therefore, conventionally, there has been a concern that the assembling work and the disassembly work of both the upper and lower rotary blades are complicated.

The present invention has been made in view of the above circumstances, and its main object is to provide a cutting device capable of facilitating assembly work and disassembly work of a rotating blade, and a blister packaging machine having the same.

Hereinafter, each means suitable for solving the above problems will be described by dividing terms. On the other hand, if necessary, a unique effect is added to the corresponding means.

Means 1. A cutting device for cutting a strip-shaped work along a conveyance direction,

A first rotation shaft and a second rotation shaft each disposed on both sides of the work and having a direction orthogonal to the transfer direction of the work as an axial direction,

A driving means capable of rotationally driving the first rotation shaft and the second rotation shaft,

A first rotating blade mounted on the first rotating shaft,

A pair of rotating bodies mounted on the second rotating shaft, at least one of which has a second rotating blade corresponding to the first rotating blade, and installed to be displaceable with respect to the axial direction,

A pressing means capable of pressing at least one of the pair of rotating bodies, having the second rotating blade toward the other side,

On the opposite surfaces of the pair of rotating bodies, each protruding in the axial direction and installed along the rotating direction of the rotating body, and at least inclined with respect to the axial direction on the protruding direction side It has a protrusion (cam part) with

By displacing one of the pair of rotating bodies with respect to the other in a first direction around the second rotating shaft (for example, clockwise when viewed from the non-facing side of each rotating body), the pair of rotations While the entire inclined cam surfaces are in sliding contact with each other, while an opening operation is performed to widen the gap between the pair of rotating bodies in the axial direction,

One of the pair of rotating bodies is relative to the other in a second direction (for example, counterclockwise when viewed from the non-facing side of each rotating body) around the second rotating shaft that is in a direction opposite to the first direction. A cutting device, characterized in that by rotationally displacing the inclined cam surfaces of the pair of rotating bodies in sliding contact with each other, a closing operation for narrowing the gap between the pair of rotating bodies in the axial direction is executed.

According to the means 1, only by displacing the pair of rotating bodies in a relative rotational motion, the spacing of the pair of rotating bodies in the axial direction becomes variable. As a result, it is possible to facilitate the assembling operation or disassembly operation of the first rotary blade and the second rotary blade.

Means 2. By providing the second rotary blade on both sides of the pair of rotating bodies,

The cutting apparatus according to means 1, comprising at least one set of rotary blades, each of which the second rotary blade is pressed against both side surfaces of the first rotary blade in the axial direction.

In the conventional cutting device having the configuration according to the above means 2, when the assembly work or the assembly disassembly work of the rotating blade set (the first rotating blade and the pair of the second rotating blade) is performed, for example, an operator The jig is inserted between the pair of second rotary blades, resisting the pressing force of the pressing means, forcibly opening the pair of second rotary blades, and inserting a predetermined spacer member between the pair of second rotary blades. Was doing a series of tasks by hand. For this reason, in the conventional cutting apparatus having the configuration according to the above-mentioned means 2, the assembling work and the disassembly work of the rotary blade set have become very complicated.

In addition, when there are a plurality of sets of the rotary blades, the operator needs to manually perform the series of operations one set at a time, and there is a concern that the working time may increase. In addition, since the operator needs to put his or her hand in the vicinity of the blade tip of the rotating blade to perform the above series of operations, considerable attention is required for the operation. In addition, there is a possibility that the spacer member inserted from the outside may come off during the assembly operation of the rotary blade set or during the assembly disassembly operation, and the operation may become unstable.

Accordingly, in the configuration according to the means 2, the configuration according to the means 1 becomes more effective, and the occurrence of the various problems can be suppressed.

Means 3. By providing the second rotary blade on one side of the pair of rotary bodies,

A plurality of sets of rotating blade sets are provided for pressing the second rotating blade against one side of the first rotating blade in the axial direction,

Cutting according to means 1 or 2, wherein the pressing direction of the second rotating blade in at least one of the plurality of rotating blade sets is different from the pressing direction of the second rotating blade in the other set. Device.

If in all the plurality of rotary blade sets (first rotary blade and second rotary blade) according to the above means 3, when the pressing direction of the second rotary blade is the same, it is only necessary to move the second rotary blade in the axial direction. , A plurality of rotary blade sets can be assembled or disassembled.

On the other hand, in the configuration according to the means 3, the operation of moving in the axial direction to the second rotational shaft cannot be performed, so that the configuration according to the means 1 is more effective. Further, according to the configuration according to the above-described means 1, it is not necessary to provide a large-scale mechanism for moving to the rotating shaft, so that the enlargement of the device can be suppressed.

Means 4. Any of the means 1 to 3, characterized in that on the protruding direction side of the protrusion, a flat cam surface is provided in connection with the second direction side of the inclined cam surface and orthogonal to the axial direction. The cutting device according to one.

According to the means 4, the flat cam surfaces are brought into contact with each other after the opening operation is performed to increase the gap between the pair of rotating bodies. Thereby, without continuously applying a force for displacing the pair of rotating bodies in a relative rotational motion, it is possible to resist the pressing force of the pressing means and keep the pair of rotating bodies open. As a result, the assembly operation and the assembly disassembly operation of the rotary blade set can be stably performed, and workability can be improved.

Means 5. Of the pair of rotating bodies, one rotating body is mounted so as to be displaceable in its circumferential direction with respect to the second rotating shaft, and the other rotating body is mounted in its circumferential direction with respect to the second rotating shaft. Mounted to be displaceable,

Characterized in that when the second rotational shaft rotates and the one rotational body rotates in the second direction, the other rotational body is configured to be rotatable by following one rotational body. The cutting device according to any one of means 1 to 4.

The term "follower" as used herein means that it operates in the same direction by receiving an action (power transmission) from the second rotating shaft, like the other rotating body, and receiving an action from the one rotating body.

According to the means 5, it is possible with a simpler configuration to rotate and drive both rotors in conjunction with rotational drive of the second rotational shaft while installing the pair of rotors so as to be capable of relative rotational motion displacement.

Means 6. The protrusion has a cross section orthogonal to the second direction at an end portion on the second direction side,

When one of the pair of rotating bodies is displaced in a relative rotational motion in the second direction with respect to the other, a cross-section of the protrusion installed on the one rotating body and a cross-section of the protrusion installed on the other rotating body The cutting device according to means 5, wherein the cutting device is configured to be able to abut.

According to the means 6, the configuration according to the means 5 can be realized with a simpler structure, and the other rotating body can be driven by one rotating body more reliably.

Means 7. The cutting device according to means 5 or 6, comprising a regulating means capable of regulating the rotational displacement of the rotating body of the other (follower) with respect to the circumferential direction of the second rotational shaft.

According to the means 7, since the rotational displacement of the rotational body on the driven side is regulated, when the rotational displacement of one (driving side) rotational body by rotating the second rotational axis is performed, the pair of rotational bodies is rotated relative to each other. Can be displaced. That is, in the case where a plurality of sets of a pair of rotating bodies are provided with respect to the second rotating shaft, the opening and closing operation of these can be performed at the same time, so that workability can be improved.

Means 8. The cutting device according to any one of means 1 to 7, wherein the drive means is a motor capable of forward and reverse rotation.

According to the means 8, for example, by rotating the motor forward, the rotating body of one (driving side) is rotated in the second direction, and by rotating the motor reversely, the rotating body of the one (driving side) is rotated in the first direction. Can be rotated.

Thereby, a conventional driving means used when cutting a work can be used as a driving means for displacing a pair of rotating bodies in a relative rotational motion. As a result, it is possible to simplify the configuration and to automate the opening and closing operation of the pair of rotating bodies.

Means 9. A blister packaging machine for manufacturing a blister pack including a container film having a pocket portion for accommodating an object to be contained, and a cover film attached to the container film by blocking the pocket portion,

Pocket portion forming means for forming the pocket portion in the container film while conveying the belt-shaped container film,

A charging means for filling the object to be contained in the pocket portion;

An attaching means for attaching the band-shaped cover film by blocking the pocket portion with respect to the container film filled with the object to be accommodated in the pocket portion;

Scrap blanking means for blanking a predetermined scrap (end material) portion that does not become the blister pack from the band-shaped blister film on which the cover film is attached to the container film,

In the step after blanking the scrap portion, comprising a blister pack separating means for separating the blister pack serving as a product from the blister film,

As the blister pack separating means, a blister packaging machine comprising the cutting device according to any one of means 1 to 8.

According to the means 9, the maintenance workability related to the cutting device is improved, and thus productivity related to the blister packaging machine can be increased.

1 is a schematic diagram showing the overall configuration of a blister packaging machine.
Fig. 2 is a perspective view showing a blister pack in (a) and a cross-sectional view showing a blister pack.
3 is a plan view showing a blister film in a conveyance process, a cutting device for cutting it, and the like.
4 is a front view of the cutting device.
5 is an exploded perspective view showing an upper blade set and the like.
6 is a perspective view showing a locking mechanism and the like.
7 is a schematic diagram showing an arrangement configuration of spacers.
8 is an explanatory diagram for explaining the operation of the spacer.
9 is an explanatory diagram for explaining the operation of the spacer.
10 is an explanatory diagram for explaining the operation of the spacer.
11 is an explanatory diagram for explaining the operation of the spacer.
12 is a front view showing a closed state of a pair of upper rotating blades facing each other.
13 is a front view showing a state during an opening/closing operation of a pair of upper rotating blades facing each other.
14 is a front view showing a state during an opening/closing operation of a pair of upper rotating blades facing each other.
15 is a front view showing an open state of a pair of upper rotating blades facing each other.
16 is a schematic diagram for explaining a configuration according to another embodiment.

Hereinafter, one embodiment will be described with reference to the drawings. First, the configuration of a blister pack manufactured by the blister packaging machine of the present embodiment will be described.

2(a) and (b), the blister pack 1 in this embodiment is a container film 3 provided with one pocket part 2, and a pocket part 2 It has a cover film 4 attached to the container film 3 so as to prevent it.

In the pocket portion 2, the object 5 is accommodated one by one (see Fig. 2(b) and the like). Examples of the to-be-received 5 include electronic components, electronic devices, foods, pharmaceuticals, medical devices, and the like.

The container film 3 in this embodiment is made of a thermoplastic resin material, such as PVC (polyvinyl chloride), for example. Further, the container film 3 is formed with a flange portion 3a so as to extend outward from the periphery of the opening portion of the pocket portion 2.

On the other hand, the cover film 4 is formed of a film obtained by laminating an aluminum-evaporated synthetic resin film with a synthetic resin film of another type, and is attached to the container film 3 (flange portion 3a).

As described later, the blister pack 1 of the present embodiment is from a band-shaped blister film 35 (see Fig. 3) obtained by attaching a band-shaped container film 3 and a band-shaped cover film 4 to each other. It is manufactured through a process of blanking the scrap 35a or a process of separating the blister pack 1 as a final product from the band-shaped blister film 35. In FIG. 3, for convenience, a scattered pattern is given to the portion of the blister film 35.

In the blister film 35 according to the present embodiment, as shown in FIG. 3, while five blister packs 1 are lined up in the film width direction (FIG. 3 vertical direction), the film conveyance direction (FIG. 3 The scrap (35a) connects between each blister pack (1) in the right direction), and the scrap (35b) connects between each blister pack (1) in the film width direction, and the film conveys both ends of the film width direction. It has a configuration in which the scraps 35c are connected along the direction.

Next, the configuration of the blister packaging machine 10 for manufacturing the blister pack 1 will be described.

As shown in FIG. 1, in the blister packaging machine 10, the band-shaped container film 3 taken out from the roll-shaped original fabric is intermittently conveyed toward the downstream side by a chain clip conveyor 11 or the like as a conveying means. Here, the clip portions 11a (refer to FIG. 4) of the chain clip conveyor 11 hold both ends in the width direction of the film (parts serving as the scrap 35c).

A heating device 12 and a pocket portion forming device 13 are first installed on the downstream side of the original end of the container film 3. The heating device 12 and the pocket part forming device 13 constitute the pocket part forming means in this embodiment.

The heating device 12 is provided with an upper mold 12a and a lower mold 12b arranged vertically with the container film 3 interposed therebetween, and partially covers the formation range of the pocket portion 2 of the container film 3 It is configured to be heated.

The pocket portion forming apparatus 13 has an upper mold 13a having a plug (not shown) that is substantially similar to the shape of the pocket portion 2 and has a small plug (not shown), and a molded concave portion corresponding to the shape of the pocket portion 2 (not shown). It has a lower mold 13b with ).

And, first, in a state where the container film 3 is heated by the heating device 12 and is relatively flexible, the upper mold 13a and the lower mold 13b move relative to each other in a direction approaching each other. Subsequently, the plug protrudes from the upper mold 13a to form a rough shape of the pocket portion 2. Finally, by injecting air from the upper mold 13a and pressing the container film 3 into the forming recess of the lower mold 13b, the pocket portion 2 is formed at a predetermined position of the container film 3. On the other hand, the molding of the pocket portion 2 is performed at an interval between the conveyance operations of the container film 3.

On the downstream side of the pocket portion forming apparatus 13, a charging device 14 as a charging means for filling the pocket portion 2 with the object 5 is provided.

On the downstream side of the charging device 14, a first inspection device A1 as an inspection means is provided. The first inspection device A1 is, for example, the presence or absence of the object 5 in the pocket portion 2, the molding defect of the pocket portion 2, and the joint (joint tape) of the container film 3 It is a known inspection device capable of inspecting the presence or absence of, and the like, abnormalities related to the object 5 or the container film 3 to be accommodated.

The first inspection device A1 performs a predetermined inspection as described above for each blister pack, determines whether the blister pack 1 is good or bad, and reports the determination result through a control device to be described later. It outputs to the discharge mechanism 18 or the like.

On the other hand, the original fabric of the cover film 4 formed in a strip shape is wound and disposed in a roll shape separately from the container film 3. The cover film 4 drawn out from the original end is guided by a receiving roller 15 provided on the downstream side of the first inspection device A1. The cover film 4 is guided to the receiving roller 15 so as to close the pocket portion 2 and overlap the container film 3.

On the downstream side of the receiving roller 15, a sealing device 16 as an attaching means is provided. The sealing device 16 includes an upper mold 16a in which its lower surface is heated to a predetermined sealing temperature, and a lower mold 16b in which a concave portion (not shown) corresponding to the pocket portion 2 is formed. The molds 16a and 16b are configured to be vertically movable and press-welded.

And, the container film 3 and the cover film 4 are conveyed between the upper mold 16a and the lower mold 16b, and both films 3 and 4 are pressure-contacted by both molds 16a and 16b, thereby The cover film 4 is attached to the flange portion 3a of the film 3. As a result, a band-shaped blister film 35 in a state in which the pocket portion 2 filled with the to-be-received material 5 is sealed with the cover film 4 is produced.

On the downstream side of the sealing device 16, a second inspection device A2 as inspection means is provided. The second inspection apparatus A2 is a known inspection apparatus capable of inspecting, for example, defects in sealing, the presence or absence of a joint (joint tape) of the cover film 4, and abnormalities related to the cover film 4, for example.

The second inspection device A2 performs a predetermined inspection as described above for each blister pack unit, determines whether the blister pack 1 is good or bad, and determines the result of the determination through a control device to be described later. It outputs to the discharge mechanism 18 or the like.

A scrap blanking device 17 as a scrap blanking means for blanking the scrap 35a from the blister film 35 is provided on the downstream side of the second inspection device A2.

The scrap blanking device 17 includes a punch 17a for blanking the scrap 35a from the blister film 35, a die 17b having a blanking hole into which the punch 17a is inserted, and a die ( It is provided below 17b) and is provided with a scrap hopper 17c for storing the blanked scrap 35a. The punch 17a and the die 17b are each configured to be vertically movable by a drive mechanism not shown.

On the downstream side of the scrap blanking device 17, a defective article discharging mechanism 18 as defective discharging means is provided. The defective article discharging mechanism 18, when defective is determined by the first inspection device A1 or the second inspection device A2, the defective portion including the blister pack 1 determined to be defective is a blister film. This is to exclude from (35).

The defective article discharging mechanism 18 includes a pair of cutters 18a in the width direction of the film for separating defective portions from the blister film 35, and a defective article hopper for storing defective portions separated from the blister film 35 (18b) is provided.

The pair of cutters 18a are respectively a lower position (cutting position) at which the blister film 35 can be cut by a drive mechanism not shown, and an upper position separated from the blister film 35 (retract position) It is configured to move up and down between.

A cutting device (slitter device) 19 as a blister pack separation means for separating the blister pack 1 and scrap 35b from the blister film 35 is installed on the downstream side of the defective product discharging mechanism 18, have.

In the cutting device 19 according to the present embodiment, the boundary line 35d (refer to FIG. 3) between the blister pack 1 and the scraps 35b and 35c is adjusted in the film conveyance direction according to the conveyance of the blister film 35. Cut along. Details of the cutting device 19 will be described later.

A conveyor 21 is provided at a position where each blister pack 1 of good products separated from the blister film 35 falls. By this conveyor 21, the blister pack 1 of good products is conveyed to the hopper 22 for finished products, and is once stored. Further, at a position where the scrap 35b separated from the blister film 35 falls, a hopper 23 for scrap is provided for storing the scrap 35b.

On the downstream side of the cutting device 19, a cutting device 25 for cutting the remaining scrap 35c by separation of the blister pack 1 or the like is disposed. Then, the scrap 35c is cut to a predetermined size in the cutting device 25 and stored in the scrap hopper 27.

In addition, although illustration is omitted, in addition to the above-described various devices, the blister packaging machine 10 is provided with a film jointing device, a control device, and the like.

The film jointing device is installed at a position where the original end of the container film 3 or the cover film 4 wound in a roll shape is set. The film jointing device connects both films 3 and 4 by attaching a joint tape over the end portion of the films 3 and 4 being supplied and the beginning of the new films 3 and 4 supplied next. , It has a function of continuously supplying the films (3, 4). On the other hand, the joint portions of the films 3 and 4 to which the joint tape is affixed as described above are defective portions and are subject to discharge by the defective article discharging mechanism 18.

The control device includes a CPU as an arithmetic unit, a ROM storing various programs, a RAM temporarily storing various data, a touch panel constituting a display unit and operation unit, various operation buttons, and the like, and the cutting device 19 ), etc., outputs control signals to various mechanisms in the blister packaging machine 10, and controls them.

As an operation button, a "start" button for starting the blister packing machine 10, a "stop" button for stopping the operation of the blister packing machine 10, etc. are provided, for example. Further, the operator can switch the operation mode of the blister packaging machine 10 such as "production mode" and "inspection mode" by operating the touch panel.

Next, the cutting device 19 which is a characteristic part of the present invention will be described in detail with reference to the drawings. As shown in Fig. 4, the cutting device 19 is a lower blade mechanism portion 51 and an upper blade mechanism portion arranged vertically with a conveyance path (hereinafter referred to as a "film conveyance path") of the blister film 35 interposed therebetween. 52, a drive motor 53 as a drive means for driving them, and a control box 54 for performing various controls related to the cutting device 19, such as drive control of the drive motor 53. 4 is a front view of the cutting device 19 viewed with the film conveyance direction as the paper-inward direction.

First, the lower blade mechanism portion 51 disposed below the film conveyance path will be described. The lower blade mechanism portion 51 is fixed to a base portion (not shown), and between a pair of side wall portions 61 provided on both sides of the film conveyance path, and the film width direction (FIG. 4) It is provided with a lower rotation shaft 62 as a first rotation shaft disposed horizontally along the left and right direction).

The lower rotation shaft 62 is rotatably supported on both side wall portions 61 through bearings (not shown). A gear 64 serving as a drive transmission means is mounted and fixed to a protruding portion of the lower rotation shaft 62 protruding outward from one side wall portion 61. Further, this protruding portion is connected to the drive motor 53. Thereby, the lower rotation shaft 62 can be rotated.

On the other hand, the drive motor 53 is configured to be forward-reversed, and by rotating the drive motor 53 in one direction (forward rotation), the lower rotation shaft 62 is rotated in a clockwise direction (forward rotation) on the ground of FIG. 1. In addition, by rotating the drive motor 53 in the other direction (reverse rotation), the lower rotation shaft 62 can be rotated counterclockwise (reverse rotation) on the sheet of FIG. 1.

The lower rotation shaft 62 is equipped with a single blade set 65 at a plurality of locations in the axial direction (left and right directions in Fig. 4). The lower blade set 65 is formed by a disk-shaped lower rotary blade (round cutter) 66 as a first rotary blade, and a lower blade holder 67 for mounting and fixing the lower rotary blade 66 with respect to the lower rotary shaft 62. Consists of.

The lower blade holder 67 holds the lower rotary blade 66 integrally with itself (no relative displacement), and is mounted and fixed with respect to the lower rotary shaft 62 so as not to displace relative to the lower rotary shaft 62 in the axial and circumferential directions. Thereby, the lower blade set 65 (lower rotary blade 66) is integrally rotatable with the lower rotary shaft 62.

In this embodiment, the one blade set 65 is attached to six locations in the axial direction corresponding to the positions of the scraps 35b and 35c (see Figs. 3 and 4). Among them, the lower rotary blades 66a and 66f of the two lower blade sets 65 installed corresponding to the scraps 35c located at both ends in the width direction of the film are the scrap 35c and the blister pack 1 on both sides of the peripheral part. ) Has a single-edged structure with blades only on one side corresponding to the boundary line 35d.

On the other hand, the lower rotary blades 66b to 66e of the four lower blade sets 65 installed corresponding to the scrap 35b are set to have the same width (thickness) as that of the scrap 35b, and the scrap 35b ) And the two blister packs 1 positioned on both sides thereof, and have a double-edged structure having blades on both sides of the periphery corresponding to each boundary line 35d.

Next, the upper blade mechanism part 52 arranged above the film conveyance path is demonstrated. The upper blade mechanism portion 52 is unitized so that it can be attached and detached from the lower blade mechanism portion 51, and has a configuration almost entirely surrounded by a casing (not shown).

More specifically, the upper blade mechanism portion 52 is a pair of side wall portions 71 installed on both sides of the film conveying path as part of the casing, and horizontally along the film width direction between the side wall portions 71 It is provided with the upper rotation shaft 72 as a 2nd rotation shaft arrange|positioned and installed.

In the assembled state of the lower blade mechanism portion 51 and the upper blade mechanism portion 52, the side wall portions 71 of the upper blade mechanism portion 52 are mounted on the side wall portions 61 of the corresponding lower blade mechanism portions 51, respectively, and shown. It is in a state of being fixed so that it cannot be detached by a fixing means that is not removed.

The upper rotation shaft 72 is rotatably supported on both side wall portions 71 through bearings (not shown). A gear 74 serving as a drive transmission means is mounted and fixed to a protruding portion of the upper rotation shaft 72 protruding outward from one side wall portion 71.

The gear 74 meshes with the gear 64 of the lower blade mechanism part 51. Thereby, the lower rotation shaft 62 of the lower blade mechanism part 51 and the upper rotation shaft 72 of the upper blade mechanism part 52 are synchronized, and rotation driving in the opposite direction to each other with the film conveyance path between them becomes possible.

That is, by rotating the drive motor 53 forward, the lower rotation shaft 62 rotates in a clockwise direction (forward rotation) on the surface of FIG. 1, and the upper rotation shaft 72 rotates in a counterclockwise direction ( Rotate forward). On the other hand, by rotating the drive motor 53 in a reverse direction, the lower rotation shaft 62 rotates counterclockwise (reverse rotation) on the surface of FIG. 1, and the upper rotation shaft 72 rotates clockwise on the FIG. Reverse).

An upper blade set 75 is attached to the upper rotation shaft 72 at a plurality of locations in the axial direction. As shown in FIG. 5, the upper blade set 75 includes a disk-shaped upper rotary blade (round cutter) 76 as a second rotary blade (rotating body), and the upper rotary blade 76 with respect to the upper rotary shaft 72. The upper blade holder 77 for mounting, the retaining ring 78 for fixing the upper rotary blade 76 to the upper blade holder 77, and the upper blade holder 77 (upper rotary blade 76) in a predetermined direction. On the surface of the coil spring 79 as a pressurizing means to pressurize, the stopper 80 supporting the coil spring 79, and the pressurizing direction side of the upper rotary blade 76 (hereinafter, referred to as ``axially inner side'') A spacer 81 mounted and a circular ring member 82 mounted on a surface opposite to the pressing direction side of the upper rotary blade 76 (hereinafter, referred to as "outside in the axial direction") are provided.

Hereinafter, the configuration of the upper blade set 75 will be described in more detail. The upper blade holder 77 includes a cylindrical boss portion 77a through which the upper rotation shaft 72 can be inserted, and a flange portion 77b protruding radially outward from the boss portion 77a.

On the other hand, in the center of the upper rotary blade 76, a through hole (not shown) is formed in which the outer diameter and the inner diameter of the boss portion 77a substantially match. Further, on the inner surface of the upper rotary blade 76 in the axial direction, an annular recess 76m having a larger diameter than the retaining ring 78 is formed around the through hole.

In addition, one end side of the boss portion 77a of the upper blade holder 77 is inserted from the outer side in the axial direction of the upper rotary blade 76 to the through hole, and the upper blade holder 77 is placed on the outer surface of the upper rotary blade 76 in the axial direction. ) Of the flange portion 77b is in abutting state. On the other hand, on the inside of the upper rotary blade 76 in the axial direction, a retaining ring 78 is attached to one end of the boss portion 77b of the upper blade holder 77 protruding from the through hole.

On the other hand, a plurality of screw holes (not shown) are formed in the annular concave portion 76m of the upper rotary blade 76, the flange portion 77b of the upper blade holder 77, and the retaining ring 78, respectively. . Then, in a state where each screw hole is aligned, a countersunk screw 83 is threaded from the inside of the upper rotary blade 76 in the axial direction with respect to the screw hole.

Thereby, the upper rotary blade 76 is pinched between the flange portion 77b and the retaining ring 78, so that the upper blade holder 77 is in a state in which the upper rotary blade 76 is integrally held with itself (relative displacement is impossible). . Further, the upper blade holder 77 (upper rotary blade 76) is mounted to the upper rotary shaft 72 so as to be slidable along the axial direction.

The coil spring 79 is so that one end of the upper rotary shaft 72 is fitted with respect to the outer peripheral portion of the boss portion 77b of the upper blade holder 77 located outside the axial direction of the upper rotary blade 76. It is mounted around.

The stopper 80 forms an annular shape through which the upper rotation shaft 72 can be inserted, and is mounted and fixed to the upper rotation shaft 72 at the other end side of the coil spring 79. On the other hand, the stopper 80 and the upper rotation shaft 72 are formed with screw holes (not shown) along their radial directions so as to correspond to each other. Then, in a state in which each screw hole is aligned, a fixing screw 84 is threaded into the screw hole. Thereby, the stopper 80 is mounted and fixed with respect to the upper rotation shaft 72 so as to be displaceable in the axial and circumferential directions thereof.

On the support surface of the stopper 80 supporting the other end side of the coil spring 79, a circular convex portion 80a that becomes smaller in diameter than the main body portion of the stopper 80 is formed. Then, the other end of the coil spring 79 is fitted with respect to the outer peripheral portion of the circular convex portion 80a.

The ring member 82 has its inner diameter substantially identical to the outer diameter of the flange portion 77b of the upper blade holder 77, and is fitted into the outer peripheral portion of the flange portion 77b, so that the axial direction of the upper rotary blade 76 It is mounted on the outer side.

In addition, on the inner surface of the upper rotary blade 76 in the axial direction, the retaining ring 78 is attached to the annular recess 76m, so that the outer periphery of the annular recess 76m and the outer periphery of the retaining ring 78 An annular groove portion 76n is formed between the edges. Here, two spacers 81 are mounted and fixed.

Each spacer 81 is formed in an arc shape along the circumferential direction of the annular groove portion 76n (rotation direction of the upper rotary blade 76), and the width in the radial direction of the upper rotary blade 76 is annular. It is formed so that it may become substantially the same as the width of the upper groove part 76n. As a result, each spacer 81 is fitted so as to fit into the annular groove 76n.

Each spacer 81 is formed with a screw hole 81a. Correspondingly, a pair of screw holes (not shown) are formed in the upper rotating blade 76 (ring-shaped groove portion 76n) and the ring member 82, respectively. Then, in a state in which these screw holes and the screw holes 81a of the spacers 81 are aligned, the countersunk screw 85 is threaded from the outer side in the axial direction of the ring member 82. As a result, the spacer 81 and the ring member 82 are mounted and fixed with respect to the upper rotary blade 76 in a displaceable manner.

Hereinafter, the configuration of the spacer 81 will be described in detail. 7 is a schematic diagram showing the arrangement configuration of the spacers 81 on the inner surface of the upper rotary blade 76 in the axial direction. On the other hand, in FIG. 7, for convenience, a scattered pattern is given to a portion of the spacer 81.

The spacer 81 has a length corresponding to a length of an arc from one end to the other end of the upper rotary blade 76 for about 85°. In addition, the two spacers 81 are arranged at equiangular intervals, that is, 180° intervals with respect to the circumferential direction of the annular groove portion 76n (rotation direction of the upper rotary blade 76).

The inner surface of the spacer 81 in the axial direction (the front surface in FIG. 7) protrudes inward in the axial direction than the inner surface of the upper rotary blade 76 in the axial direction (see FIG. 15 and the like). A cam surface 90 is formed on the inner surface of the spacer 81 in the axial direction. Therefore, the spacer 81 constitutes the protruding part (cam part) in this embodiment.

The cam surface 90 includes an inclined cam surface 90a formed in a lengthwise predetermined section including a lengthwise one end of the spacer 81 (clockwise end on FIG. 7 ), and a lengthwise direction of the spacer 81 It is composed of a flat cam surface 90b formed in a predetermined section in the longitudinal direction including the other end (an end on the counterclockwise direction on the drawing in Fig. 7).

The inclined cam surface 90a has a length corresponding to about 70 degrees in the rotation angle of the upper rotating blade 76. The inclined cam surface 90a is inclined so that the amount of protrusion inward in the axial direction increases from one end in the longitudinal direction to the other end of the spacer 81 (see Fig. 15 and the like). The inclined cam surface 90a is inclined by about 10° with respect to the axial inner surface of the upper rotary blade 76 (in the radial direction of the upper rotary shaft 72).

On the other hand, the flat cam surface 90b has a length corresponding to about 15 degrees in the rotation angle of the upper rotating blade 76. The flat cam surface 90b is a plane parallel to the axial inner surface of the upper rotary blade 76 (a plane perpendicular to the axial direction of the upper rotary shaft 72).

Further, at the other end portion in the longitudinal direction of the spacer 81, an engaging end face 91 is formed so that the flat cam surface 90b and the annular groove portion 76n become stepped (see Fig. 5 and the like). The engaging end face 91 is a plane orthogonal to the rotation direction of the upper rotary blade 76.

By the way, in this embodiment, the upper blade set 75 comprised as mentioned above is attached to 10 axial directions of the upper rotation shaft 72 corresponding to the position of the scraps 35b and 35c (refer FIGS. 3 and 4).

Among them, the upper rotary blades 76b to 76i of the eight upper blade sets 75 installed corresponding to the boundary line 35d between the scrap 35b and the blister pack 1 have their respective inner surfaces in the axial direction of the scrap 35b It is arranged and installed facing the) side.

In other words, at a location corresponding to each scrap 35b, two adjacent upper rotary blades 76 (for example, upper rotary blade 76b and upper rotary blade 76c) face each other in the axial direction. It is arranged so that it is in a state. Then, the two upper rotary blades 76 facing each other are configured to be a pair, so that an opening/closing operation or the like described later can be executed.

In addition, the upper rotary blades 76a and 76j of the two upper blade sets 75 installed in correspondence with the boundary line 35d between the scrap 35c and the blister pack 1 located at both ends in the width direction of the film are within the axial direction. It is arranged and installed so that its side faces each side toward the scrap 35c.

On the other hand, the two upper blade sets 75 (upper rotary blades 76a, 76j) corresponding to the scrap 35c are the same as the upper blade set 75 (upper rotary blades 76b to 76i) corresponding to the scrap 35b. , There is no upper blade set 75 as a pair, but instead of this, a receiving set 100 as a set with these is provided.

The receiving set 100 is attached to the upper rotary shaft 72 between the upper blade set 75 (upper rotary blades 76a and 76j) corresponding to the scrap 35c and the respective side wall portions 71. The receiving set 100 has the same configuration as the upper blade set 75, and instead of the upper blade 76, a disk body 101 as a rotating body which is slightly smaller than the upper blade 76 and does not have a blade is provided. It is different from the top blade set 75 only in that it is doing. Accordingly, the same member names and the same reference numerals are used for portions overlapping with the upper blade set 75, and detailed description of the receiving set 100 is omitted.

And, as in the case of the pair of upper rotating blades 76 facing each other, the upper rotating blades 76 (upper rotating blades 76a, 76j) facing each other and the disk 101 (disc 101a, 101b) ) Is formed as a pair, and it is configured to be able to perform an opening/closing operation or the like described later.

By the way, one of the pair of upper rotating blades 76 facing each other (including the case of the upper rotating blade 76 and the disk 101 facing each other. The same hereinafter) is one of the upper rotating shaft 72. It is mounted so that it cannot be displaced in the circumferential direction. That is, it is mounted so as to be integrally rotatable with the upper rotation shaft 72 according to the rotational drive of the upper rotation shaft 72.

Hereinafter, the upper rotary blade 76 and the like on one side (including the case of the disk body 101. The same hereinafter) are appropriately referred to as the upper rotary blade 76 or the like on the "drive side". In this embodiment, the upper rotary blade 76 located on the left side in Fig. 4 (disc 101a, upper rotary blade 76b, upper rotary blade 76d, upper rotary blade 76f, upper rotary blade 76h), The upper rotary blade 76j) becomes the upper rotary blade 76 or the like on the driving side.

Here, the mounting structure of the upper rotary blade 76 on the driving side to the upper rotary shaft 72 will be described in detail. As shown in Fig. 5, on the outer peripheral surface of the upper rotation shaft 72, a key groove 72a extending along the axial direction is formed. In response to this, on the inner circumferential surface of the boss portion 77a of the upper blade holder 77 that holds the upper rotary blade 76 on the driving side, it protrudes toward the inner side in the radial direction and is formed along the axial direction of the upper rotary shaft 72 A key 77c is provided. Then, in a state in which the key 77c is fitted into the key groove 72a, the upper blade holder 77 is attached to the upper rotation shaft 72. Thereby, the upper rotary blade 76 and the like on the driving side are mounted with respect to the upper rotary shaft 72 so as to be displaceable in the axial direction and not displaceable in the circumferential direction.

On the other hand, the other of the pair of upper rotating blades 76 facing each other is mounted so as to be displaceable with respect to the circumferential direction of the upper rotating shaft 72. The upper rotary blade 76 on the other side and the like are installed so as to be rotatable by following the upper rotary blade 76 or the like on the drive side, as described later.

Hereinafter, the upper rotary blade 76 or the like on the other side is appropriately referred to as the upper rotary blade 76 or the like on the "follower side". In this embodiment, the upper rotary blade 76 located on the right side in FIG. 4 (upper rotary blade 76a, upper rotary blade 76c, upper rotary blade 76e), upper rotary blade 76g, upper rotary blade 76i, The disk 101b) becomes an upper rotating blade 76 on the driven side.

Next, the relative relationship and interaction of the pair of upper rotating blades 76 facing each other will be described. Two spacers 81 installed on the axial inner surface of the upper rotary blade 76 on the driving side and the two spacers 81 installed on the axial inner surface of the upper rotary blade 76 on the driven side, etc. In the state that they do not interfere with each other in the axial direction of 72 and in the circumferential direction, and are alternately arranged at approximately 90° intervals in the circumferential direction of the upper rotation shaft 72, the upper rotating blade on the driving side is (76) The inner surface in the axial direction of the back and the inner surface in the axial direction of the upper rotating blade 76 on the driven side are in a closed state in which they are closest to each other.

In such a closed state, the axial inner end of the spacer 81 such as the upper rotary blade 76 on the driving side, that is, the flat cam surface 90b, enters into the annular groove 76n such as the upper rotary blade 76 on the driven side. At the same time, the inner end portion in the axial direction of the spacer 81 such as the upper rotary blade 76 on the driven side, that is, the flat cam surface 90b, enters the annular groove 76n such as the upper rotary blade 76 on the driving side. State (see Fig. 12 and the like). On the other hand, in Fig. 12, for convenience, a scattered pattern is given to the portion of the spacer 81 (the same is true for Figs. 13 to 15).

The distance W1 between the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side in the closed state is set to be narrower than the thickness W2 of the lower rotary blade 66. Therefore, in the assembled state of the lower blade set 65 and the upper blade set 75, when the pair of upper rotary blades 76 and the like are in a closed state, the axial inner surface of the periphery of each upper rotary blade 76 is , Each of the corresponding lower rotary blade 66 is pressed on the side of the periphery (see FIG. 12). That is, in a location corresponding to each scrap 35b, a pair of upper rotary blades 76 (for example, an upper rotary blade 76b and an upper rotary blade 76c) facing each other, is provided with a lower rotary blade ( 66) (for example, the lower rotary blade 66b) is pinched from both sides in the axial direction.

In addition, in the closed state, for example, by regulating the rotational displacement of the upper rotary blade 76 on the driven side, and rotating the upper rotary blade 76 on the driving side clockwise when viewed from the outside in the axial direction, When the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side are displaced in a relative rotational motion, as shown in Fig. 8, the engaging end face 91 of the two spacers 81 on the driving side Each of these two spacers 81 on the driven side is brought into contact with the engaging end faces 91. Therefore, the clockwise direction when the upper rotary blade 76 on the driving side or the upper rotary blade 76 on the driven side is viewed from the outside in the axial direction corresponds to the second direction in the present embodiment.

On the other hand, in FIG. 8, for convenience, the upper rotary blade 76 on the driving side (front) is indicated as “upper rotary blade 76 (A)”, and the upper rotary blade 76 on the driven side (inside) is referred to as “upper rotary blade ( 76(B))". Similarly, two spacers 81 on the driving side are indicated as "spacer 81 (A1)" and "spacer 81 (A2)", and two spacers 81 on the driven side are referred to as "spacer 81 ( B1))" and "spacer 81 (B2))" are indicated (the same applies to Figs. 9 to 11). In addition, in FIG. 8, for convenience, a scattered pattern is given to the portion of the cam surface 90 (the inclined cam surface 90a and the flat cam surface 90b) (the same also applies in FIGS. 9 to 11).

In the closed state shown in Fig. 8, when the driving motor 53 is driven to rotate the upper rotary blade 76 on the driving side integrally with the upper rotary shaft 72, the two spacers 81 on the driving side are The engagement end faces 91 of the two spacers 81 on the driven side are pressed by the engagement end faces 91, so that they are in the same direction from the upper rotation blade 76 on the driving side with respect to the upper rotation blade 76 on the driven side. The rotational force to is transmitted. That is, the upper rotary blade 76 on the driven side and the like are driven to rotate forward by following the upper rotary blade 76 on the driving side, and both rotate integrally. Thereby, in the assembled state of the lower blade set 65 and the upper blade set 75, the lower rotary blade 66 and the upper rotary blade 76 are synchronized and rotated in opposite directions, respectively, so that the blister film 35 is transferred It can be cut along (see Fig. 12).

On the other hand, from the closed state shown in Fig. 8, for example, while regulating the rotational displacement of the upper rotary blade 76 on the driven side, the upper rotary blade 76 on the driving side, etc., in the counterclockwise direction when viewed from the outside in the axial direction. When the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side are displaced in a relative rotational motion by the rotational motion, as shown in Figs. 9 and 10, the two spacers 81 on the driving side are The engagement end faces 91 are separated from the engagement end faces 91 of the two spacers 81 on the driven side, and the inclined cam faces 90a of the two spacers 81 on the driving side respectively correspond to the vertical It approaches the inclined cam surface 90a of the two spacers 81 on the east side. Accordingly, the counterclockwise direction when the upper rotary blade 76 or the like on the driving side or the upper rotary blade 76 or the like on the driven side is viewed from the outside in the axial direction corresponds to the first direction in the present embodiment.

Subsequently, when the upper rotary blade 76 on the driving side is rotated and displaced, as shown in Figs. 11 and 13, the inclined cam surfaces 90a of the two spacers 81 on the driving side are respectively corresponding to the corresponding driven side. The two spacers 81 are in contact with the inclined cam surfaces 90a. In the present embodiment, when the upper rotary blade 76 or the like on the drive side is rotated by about 80° from the closed state shown in FIG. 8, both inclined cam surfaces 90a come into contact with each other.

In addition, when the upper rotary blade 76 on the driving side is rotated and displaced, as shown in Fig. 14, the inclined cam surfaces 90a of the two spacers 81 on the driving side correspond to the two spacers on the driven side, respectively. While sliding the inclined cam surface 90a of 81, the two spacers 81 on the driving side and the two spacers 81 on the driven side are displaced in a relative rotational motion. At the same time, the two spacers 81 on the driving side and the two spacers 81 on the driven side are respectively displaced outward in the axial direction by resisting the pressing force of the coil spring 79. Thereby, the interval W1 between the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side gradually widens.

And, as shown in FIG. 15, when the flat cam surfaces 90b of the two spacers 81 on the driving side and the flat cam surfaces 90b of the two spacers 81 on the driven side come into contact with each other, The distance W1 between the axial inner surface of the upper rotary blade 76 and the like in the axial direction such as the upper rotary blade 76 on the driven side is maximized and is in an open state. In this embodiment, by rotating the upper rotary blade 76 or the like on the drive side by about 165° from the closed state shown in FIG. 8, the entire flat cam surfaces 90b are brought into contact with each other.

On the other hand, in such an open state, since the flat cam surfaces 90b are in contact with each other, the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side are not displaced in relative rotational motion. The open state can be stably maintained by resisting the pressing force of the coil spring 79 in FIG.

In addition, by performing the series of opening operations in reverse order, the closing operation related to the pair of upper rotary blades 76 that face each other can be performed, and the closed state can be set.

Incidentally, the upper blade mechanism portion 52 is provided with a locking mechanism 110 as a restricting means for regulating the movement of the upper rotary blade 76 on the driven side (see Figs. 4 and 6). The locking mechanism 110 is used for separating the upper blade mechanism portion 52 from the lower blade mechanism portion 51 (when removing the assembled state of the lower rotary blade 66 and the upper rotary blade 76), such as during maintenance. , It is configured to be able to regulate the rotational displacement of the upper rotary blade 76 on the driven side with respect to the circumferential direction of the upper rotary shaft 72. Hereinafter, it demonstrates in detail.

The locking mechanism 110 includes an interlocking shaft 111 installed in parallel with the upper rotation shaft 72 between a pair of side wall portions 71, and an interlocking shaft 111 so as to correspond to the upper rotation blade 76 on the driven side. ) Is provided with the arm portion 112 provided at a plurality of locations in the longitudinal direction.

The interlocking shaft 111 is axially supported on both side wall portions 71 through bearings (not shown) to enable rotational motion. As the interlocking shaft 111 rotates, the plurality of arm portions 112 can tilt.

A drive lever 113 serving as a drive transmission means is mounted and fixed to a protruding portion of the interlocking shaft 111 protruding outward from one side wall portion 71. A rod-shaped body 114 is protruded from the drive lever 113, and one end of the coil spring 115 is hooked thereto.

The other end of the coil spring 115 is hung against the rod-shaped body 116 protruding from the side wall portion 71. Therefore, the free end side of the drive lever 113 is pulled downward by the tensile force of the coil spring 115.

In response to this, an air cylinder 118 is provided through a mounting table 117 on a side wall portion 61 of the lower blade mechanism portion 51 located below the drive lever 113. In the air cylinder 118, a rod 119 installed so as to be able to move vertically protrudes upward.

In the assembled state of the lower blade mechanism portion 51 and the upper blade mechanism portion 52 (a state in which the side wall portion 71 of the upper blade mechanism portion 52 is mounted on the side wall portion 61 of the lower blade mechanism portion 51), the rod 119 ) Is brought into contact with the lower surface of the free end side of the driving lever 113.

In this state, as the rod 119 moves up and down, the interlocking shaft 111 rotates through the drive lever 113, and the plurality of arm portions 112 tilt around the interlocking shaft 111.

At the distal end of the arm portion 112, a hooking portion 112a curved downward is provided. Correspondingly, in the ring member 82 attached to the upper rotating blade 76 or the like on the driven side, a locking recess 82a is formed in the outer peripheral portion thereof.

Normally, the rod 119 is in a stopped state at the top position. In such a state, the arm portion 112 (engaging portion 112a) is separated from the ring member 82. Thereby, the upper rotary blade 76 or the like on the driven side is in a state capable of being displaced with respect to the circumferential direction of the upper rotary shaft 72. That is, the upper rotary blade 76 or the like on the driven side is in a state capable of rotating by following the upper rotary blade 76 or the like on the driving side.

Then, the arm portion 112 tilts downward in a state in which the locking concave portion 82a is located at the top of the ring member 82 (see Fig. 6), so that the locking portion 112a is moved with respect to the locking concave portion 82a. Inserted (see Fig. 5). In this way, when the locking part 112a of the arm part 112 is inserted against the locking concave part 82a of the ring member 82, the upper rotating blade 76 on the driven side is caught, and the circumference of the upper rotating shaft 72 Displacement with respect to the direction becomes impossible.

On the other hand, on the outer circumferential surface of the interlocking shaft 111, a key groove 111a extending along the axial direction is formed, and the arm portion 112 is formed along the key groove 111a in the axial direction of the interlocking shaft 111 It is in a displaceable state. Accordingly, when the upper rotary blade 76 or the like on the driven side is displaced in the axial direction of the upper rotary shaft 72, the operation thereof is not hindered.

However, with respect to the order and effect of manufacturing the blister pack 1 by the blister packaging machine 10 configured as described above, in particular, the pocket portion 2 is filled with the object 5 and sealed The main process after the film 35 is formed will be described.

Through the pocket part formation process of forming the pocket part 2, the filling process of filling the pocket part 2 with the object 5, and the attaching process of attaching the cover film 4 to the container film 3, etc. The formed blister film 35 is transferred to a scrap blanking process (scrap blanking device 17).

In the scrap blanking device 17, during conveyance of the blister film 35, the punch 17a is located at a stand-by position separated upward from the blister film 35, and the die 17b is a blister film. It is located in a standby position separated from (35) downwards.

And when the blister film 35 which is intermittently conveyed is stopped at a predetermined position, the punch 17a descends and the die 17b rises. Subsequently, the punch 17a descends further and enters the blanking hole of the die 17b while pushing the blister film 35, and the scrap 35a is blanked from the blister film 35. After that, the punch 17a and the die 17b are separated from the blister film 35, thereby completing the blanking process of the scrap 35a. Thereby, as shown in Fig. 3, the scraps 35a are sequentially blanked one by one.

When there is no defective part in the blister film 35, the defective product discharging mechanism 18 does not operate, and the blister film 35 blanked with the scrap 35a passes through the defective product discharging mechanism 18 as it is. , Is transferred to the cutting device 19.

On the other hand, when the defect determination result of the predetermined blister pack 1 is input from the first inspection device A1 or the second inspection device A2 to the defective article discharging mechanism 18, the defective article discharging mechanism 18 , Blanking the scrap 35a between the blister pack 1 judged good and the blister pack 1 judged badly formed by lowering the pair of cutters 18a to blank the scrap 35a The tip of the cutter 18a is inserted into the formed hole).

Subsequently, according to the conveyance operation of the blister film 35, the blister film 35 is cut along the film conveyance direction. In this embodiment, it cuts along the boundary line 35d of the blister pack 1 and the scrap 35c.

On the other hand, the defective article discharging mechanism 18 holds the cutter 18a in the lowered cutting position until the next portion determined to be good is conveyed, that is, as long as the portion determined to be defective continues. And, when the hole formed by blanking the scrap 35a between the blister pack 1 determined to be defective and the blister pack 1 determined to be good is conveyed to the position of the cutter 18a, cutting is terminated, and the cutter Separate (18a) to the upper retraction position. After that, the blister film 35 from which the defective part is separated is transferred to the cutting device 19.

In the cutting device 19, the boundary line 35d between the blister pack 1 and the scraps 35b and 35c is cut along the film conveyance direction. Thereby, the blister pack 1 is separated from the blister film 35, and manufacture of the blister pack 1 is completed.

Next, a description will be given focusing on the operation related to the upper blade mechanism unit 52, in particular, with respect to the procedure and effect of performing the maintenance work related to the cutting device 19 as a characteristic part of the present invention.

First, the operator operates the control device (touch panel) of the blister packaging machine 10 to switch the operation mode of the blister packaging machine 10 from "production mode" to "inspection mode". In the ``inspection mode'', the various mechanisms in the blister packaging machine 10 are in a dormant state, and the cutting device 19 is in a state in which the opening and closing operation of the pair of upper rotating blades 76 facing each other can be executed. .

Next, the operator presses the "open" button (not shown) provided in the control box 54 of the cutting device 19. Thereby, the drive motor 53 is driven forward rotation, so that the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side rotate forward by a predetermined amount. Then, when the engaging concave portion 82a of the ring member 82 such as the upper rotation blade 76 on the driven side is positioned at the top (see FIG. 6), the drive motor 53 is stopped.

Subsequently, the air cylinder 118 is driven and the rod 119 descends. Thereby, the arm part 112 of the lock mechanism 110 tilts downward, and the locking part 112a is inserted with respect to the locking recessed part 82a (refer FIG. 5). As a result, the upper rotary blade 76 or the like on the driven side is caught, and the displacement with respect to the circumferential direction of the upper rotary shaft 72 becomes impossible.

In this state, the "open" button of the control box 54 is pressed again. Then, the drive motor 53 is driven to rotate in reverse, so that the upper rotary blade 76 on the driving side rotates in reverse by a predetermined amount. Thereby, an opening operation related to the pair of upper rotary blades 76 facing each other is executed. That is, by the action of the spacer 81, the distance W1 between the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side is widened by resisting the pressing force of the coil spring 79.

Then, when the flat cam surfaces 90b of the two spacers 81 on the driving side and the flat cam surfaces 90b of the two spacers 81 on the driven side come into contact with each other (see FIG. 15), the interval W1 This maximum open state is reached, and the drive motor 53 is stopped.

In this state, the upper blade mechanism unit 52 is lifted and separated from the lower blade mechanism unit 51 using a predetermined lift device (not shown). On the other hand, in this state, a state in which the flat cam surfaces 90b of the two spacers 81 on the driving side and the flat cam surfaces 90b of the two spacers 81 on the driven side are in contact is maintained. Further, in the locking mechanism 110, the drive lever 113 is pulled by the coil spring 115, and the locking portion 112a of the arm portion 112 is a locking recessed portion 82a of the ring member 82 It remains inserted against

Then, after the maintenance of the lower blade mechanism portion 51 or the upper blade mechanism portion 52 is finished, the upper blade mechanism portion 52 is again mounted on the lower blade mechanism portion 51.

Next, the operator presses the "close" button provided in the control box 54 (not shown). Then, the drive motor 53 is driven forward rotation, and the upper rotation blade 76 on the driving side rotates forward by a predetermined amount. Accordingly, a closing operation related to the pair of upper rotating blades 76 facing each other is executed. That is, by the action of the spacer 81 and the pressing force of the coil spring 79, the distance W1 between the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side becomes narrower.

Then, when the engaging end surfaces 91 of the two spacers 81 on the driving side and the engaging end surfaces 91 of the two spacers 81 on the driven side come into contact (see Fig. 12), the interval ( W1) becomes the minimum closed state, and the drive motor 53 is stopped.

In this state, the "close" button of the control box 54 is pressed again. Then, the air cylinder 118 is driven and the rod 119 is raised. Thereby, the arm part 112 of the locking mechanism 110 tilts upward, and the locking part 112a is released from the locking recessed part 82a (refer FIG. 5). Thereby, the upper rotation blade 76 on the driven side becomes a state capable of being displaced with respect to the circumferential direction of the upper rotation shaft 72.

After that, the operator operates the control device (touch panel) of the blister packaging machine 10 to switch the operation mode of the blister packaging machine 10 from "inspection mode" to "production mode".

As described in detail above, according to the present embodiment, by only displacing the upper rotary blade 76 on the driving side and the upper rotary blade 76 on the driven side in a relative rotational motion, the distance W1 in the axial direction thereof This becomes variable. As a result, it is possible to facilitate the assembling and disassembling work of the lower blade set 65 and the upper blade set 75.

In addition, in this embodiment, by using the locking mechanism 110, the drive motor 53, etc., assembling and disassembling of the plurality of lower blade sets 65 and upper blade sets 75 are performed simultaneously and by button operation. All can be done automatically. Furthermore, since it is not necessary for the operator to carry out the work by putting a hand near the edge of the blade such as the upper rotary blade 76, the work can be performed more safely.

In addition, it is not limited to the description content of the said embodiment, You may implement as follows, for example. Of course, other application examples and modifications not illustrated below are naturally possible.

(a) The configuration of the blister pack 1 to be manufactured (for example, the size and shape of the pocket portion 2) is not limited to the above embodiment, and other configurations may be employed.

In addition, the material, layer structure, etc. of the container film 3 and the cover film 4 are not limited to the said embodiment. For example, in the above embodiment, the container film 3 is formed of PVC, but is not limited thereto, and is formed of a resin material such as CPP (non-stretched polypropylene) or PET, as well as a metal material such as aluminum. It is good also as a configuration to become.

(b) The configuration of the blister film 35 is not limited to the above embodiment. For example, in the above embodiment, five blister packs 1 are manufactured simultaneously in the width direction of the blister film 35, but instead of this, for example, the width of the blister film 35 It may be configured to manufacture only two sheets in the direction, or may be configured to manufacture one sheet at a time in the width direction. On the other hand, in the case of manufacturing one by one in the width direction, two upper blade sets 75 (upper rotary blades 76a, 76j) installed corresponding to the scrap 35c in the above embodiment, and a receiving set that is set with these (100) (disk body 101a, 101b) is provided.

(c) In the above embodiment, the cutting device 19 according to the present invention is embodied as a configuration provided in the blister packaging machine 10 for manufacturing the blister pack 1, but is not limited thereto. It may be embodied as a configuration assembled to something other than a thermal packaging machine. Of course, it is also possible to use the cutting device 19 alone.

That is, the work to be cut by the cutting device 19 is not limited to the blister film 35 according to the above embodiment, and for example, paper conveyed in a strip shape may be used as a cutting target.

(d) The configuration of the cutting device 19 is not limited to the above embodiment. For example, in the above embodiment, the upper blade mechanism portion 52 is unitized so as to be detachable from the lower blade mechanism portion 51, but the present invention is not limited thereto, and the upper blade mechanism portion 52 and the lower blade mechanism portion 51 are not detachable. It is good also as a configuration. Even in such a configuration, the pair of upper rotary blades 76 and the like that face each other are opened and closed in the axial direction, so that cleaning work of the upper rotary blade 76 is easy.

In addition, in the above embodiment, the lower rotary blade 66 is held between both sides in the axial direction by a pair of upper rotary blades 76 facing each other. The present invention is not limited thereto, and the upper rotary blade may be clamped from both sides in the axial direction by a pair of lower rotary blades facing each other. That is, even if the upper rotary shaft constitutes the first rotary shaft and the upper rotary blade constitutes the first rotary blade, the lower rotary shaft constitutes the second rotary shaft, and the lower rotary blade constitutes the second rotary blade (rotator). do.

(e) The configuration related to the upper blade set 75 and the receiving set 100 is not limited to the above embodiment. For example, in the above embodiment, the coil spring 79 is employed as the pressing means, but instead of this, a disc spring or the like may be employed.

(f) The configuration related to the drive means is not limited to the above embodiment. For example, in the above-described embodiment, the lower rotation shaft 62 and the upper rotation shaft 72 are rotatably driven by one drive motor 53 via the gears 64 and 74. Instead of this, for example, a configuration including a drive motor corresponding to each of the lower rotary shaft 62 and the upper rotary shaft 72 may be employed.

In addition, apart from the conventional drive motor 53 used for cutting the blister film 35, when the one blade set 65 and the upper blade set 75 are assembled or disassembled, they face each other. It may be configured with a dedicated drive motor or the like for executing the opening/closing operation of the pair of upper rotary blades 76 or the like.

(g) The restricting means for regulating the movement of the upper rotating blade 76 on the driven side is not limited to the locking mechanism 110, and other configurations may be employed. For example, instead of the locking mechanism 110, a configuration including a locking mechanism (regulatory means) that can be manually operated by an operator may be provided.

Further, as the restricting means, a configuration in which the operator manually regulates the movement of the upper rotary blade 76 on the driven side may be adopted using the stopper rod 150 in the form of a cylindrical rod as shown in FIG. 16.

In more detail, as shown in FIG. 16, in the pair of side wall portions 71 of the upper blade mechanism portion 52, each stopper rod 150 is configured to be inserted in parallel with the rotation shaft 72, A pair of support holes 151 capable of supporting both ends of the stopper rod 150 are provided.

Correspondingly, in the upper rotary blade 76 (left of Fig. 16) on the driven side, a circular through hole 152 through which the stopper rod 150 can be inserted is provided, and the upper rotary blade 76 on the driving side is provided. In the (right side of Fig. 16), the stopper rod 150 is provided so as to be able to be inserted therethrough, and a long hole 153 formed in an arc shape along the rotation direction of the upper rotary blade 76 is provided. On the other hand, although not shown in Fig. 16, a plurality of sets of the pair of upper rotary blades 76 having the same configuration are provided as in the above embodiment.

Under this configuration, in a state in which the through hole 152 and the long hole 153 related to the plurality of sets of the upper rotary blade 76 are aligned, the stopper rod 150 through the support hole 151 for them While being inserted through, both ends of the stopper rod 150 are supported by a pair of side wall portions 71.

In this state, by rotating the drive motor 53 as in the above embodiment, the upper rotary blade 76 on the driven side and the upper rotary blade 76 on the driving side can be displaced in a relative rotational motion. Further, by the action of the spacer 81, the upper rotary blade 76 on the driven side and the upper rotary blade 76 on the driving side can be opened and closed in the axial direction.

(h) In the above embodiment, the upper rotary blade 76 or the like on the driving side is rotated by the drive motor 53 to displace the pair of upper rotary blades 76 that face each other in a relative rotational motion. . Without being limited thereto, for example, in a state in which rotational displacement of the upper rotary blade 76 on the driven side is regulated, the operator rotates the upper rotary shaft 72 by manual operation using a predetermined operation handle, A pair of upper rotary blades 76 that face each other may be displaced in a relative rotational motion.

In addition, by displacing the rotational motion of the upper rotational blade 76 on the driven side while the upper rotational blade 76 on the driving side, etc. are stopped, a pair of upper rotational rotational movements such as opposed to each other are displaced. It may be configured.

For example, a hole for inserting a rod-shaped jig is installed on the outer circumferential surface of the ring member 82 on the driven side, and an operator inserts a rod-shaped jig into the hole to rotate the upper rotary blade 76 on the driven side one by one. It is good also as a structure which makes movement displacement. Even in such a configuration, the operator does not need to insert a jig between the pair of upper rotary blades 76, and does not need to perform work near the edge of the blade. Of course, a plurality of rod-shaped jigs may be integrated so that an operator can rotate and displace the plurality of driven upper rotary blades 76 or the like manually or automatically by a predetermined driving means.

(i) In the above embodiment, four sets of a pair of upper rotary blades 76 facing each other are provided, and two sets of a combination of upper rotary blades 76 and disk 101 facing each other are provided. have. Such a configuration can be appropriately changed according to the configuration of the blister film 35.

For example, as a blister film 35 without scraps 35b, in the case of manufacturing five blister packs 1 in the film width direction at the same time, the upper rotating blade 76 and the disc body ( The combination of 101) may be configured with six sets.

On the other hand, in the combination of the upper rotation blade 76 and the disk body 101 facing each other, it is not necessary to press the disk body 101 by the coil spring 79, and the disk body 101 is the upper rotation shaft ( 72) may be installed so as to be displaceable in the axial direction.

(j) The configuration of the spacer 81 (protrusion) is not limited to the above embodiment. For example, in the above embodiment, two spacers 81 are installed on the inner surface of the upper rotary blade 76 in the axial direction, but the number of spacers is not limited thereto, and a configuration including three or more spacers. You can do it. Even when three or more are installed, each spacer is installed at equal intervals.

Further, if a mechanism for holding the pair of upper rotary blades 76 and the like facing each other in an open state is provided, the flat cam surface 90b may be omitted. In addition, as long as the drive-side upper rotary blade 76 or the like has a configuration in which the driven-side upper rotary blade 76 or the like is driven, the engaging end face 91 may be omitted. Further, the spacer 81 may be integrally formed on the inner surface of the upper rotary blade 76 in the axial direction.

One… Blister pack, 2… Pocket part, 3… Container film, 4... Cover film, 10... Blister packaging machine, 35... Blister film, 35a, 35b, 35c... Scrap, 19… Cutting device, 51... One day mechanism, 52... Upper blade mechanism part, 53... Drive motor, 54... Control unit, 62... Lower axis of rotation, 65... One blade set, 66(66a~66f)... Lower rotation blade, 72... Upper axis of rotation, 75… Upper blade set, 76(76a~76j)... Upper rotation blade, 79... Coil spring, 81... Spacer, 82... Ring member, 82a... Jamming recess, 90... Cam surface, 90a... Inclined cam surface, 90b... Flat cam surface, 91... Engaging cross section, 100... Receiving set, 101 (101a, 101b)... Disc, 110... Rock apparatus.

Claims (9)

As a cutting device that cuts a strip-shaped work along the conveyance direction,
A first rotation shaft and a second rotation shaft each disposed on both sides of the work and having a direction orthogonal to the transfer direction of the work as an axial direction,
A driving means capable of rotationally driving the first rotation shaft and the second rotation shaft,
A first rotating blade mounted on the first rotating shaft,
A pair of rotating bodies mounted on the second rotating shaft, at least one of which has a second rotating blade corresponding to the first rotating blade, and installed to be displaceable with respect to the axial direction,
A pressing means capable of pressing at least one of the pair of rotating bodies, having the second rotating blade toward the other side,
On the opposite surfaces of the pair of rotating bodies, each protruding in the axial direction and installed along the rotating direction of the rotating body, and at least inclined with respect to the axial direction on the protruding direction side It has a protruding part,
By displacing one of the pair of rotating bodies relative to the other in a first direction around the second rotating shaft, the inclined cam surfaces of the pair of rotating bodies are in sliding contact with each other, in the axial direction. While the opening operation to widen the gap of the pair of rotating bodies is performed,
By displacing one of the pair of rotating bodies with respect to the other in a second direction around the second rotating shaft that is opposite to the first direction, the inclined cam surfaces of the pair of rotating bodies slide with each other. A cutting device, characterized in that, while contacting, a closing operation for narrowing a gap between the pair of rotating bodies in the axial direction is performed. The method of claim 1,
By providing the second rotary blades on both sides of the pair of rotating bodies,
A cutting apparatus comprising at least one set of rotating blades, each of which the second rotating blade is pressed against both sides of the first rotating blade in the axial direction. The method of claim 1,
By providing the second rotary blade on one side of the pair of rotating bodies,
A plurality of sets of rotating blade sets are provided for pressing the second rotating blade against one side of the first rotating blade in the axial direction,
A cutting device, wherein a pressing direction of the second rotating blade in at least one of the plurality of rotating blade sets is different from a pressing direction of the second rotating blade in another set. The method of claim 1,
A cutting device comprising a flat cam surface provided in connection with the second direction side of the inclined cam surface and orthogonal to the axial direction in the protruding direction side of the protrusion. The method of claim 1,
Of the pair of rotating bodies, one rotating body is mounted in a circumferential direction with respect to the second rotating shaft, and the other rotating body is displaceable in its circumferential direction with respect to the second rotating shaft. Mounted properly,
Characterized in that when the second rotational shaft rotates and the one rotational body rotates in the second direction, the other rotational body is configured to be rotatable by following one rotational body. Cutting device. The method of claim 5,
The protrusion has a cross section orthogonal to the second direction at an end of the second direction side,
When one of the pair of rotating bodies is displaced in a relative rotational motion in the second direction with respect to the other, a cross-section of the protrusion installed on the one rotating body and a cross-section of the protrusion installed on the other rotating body A cutting device, characterized in that it is configured to be able to abut. The method of claim 5,
A cutting device comprising: a regulating means capable of regulating a rotational displacement of the other rotating body with respect to the circumferential direction of the second rotating shaft. The method of claim 1,
The cutting device, wherein the driving means is a motor capable of forward and reverse rotation. A blister packaging machine for manufacturing a blister pack having a container film having a pocket portion for accommodating an object and a cover film attached to the container film by blocking the pocket portion,
Pocket portion forming means for forming the pocket portion in the container film while conveying the belt-shaped container film,
A charging means for filling the object to be contained in the pocket portion;
An attaching means for attaching the band-shaped cover film by blocking the pocket portion with respect to the container film filled with the object to be accommodated in the pocket portion;
Scrap blanking means for blanking a predetermined scrap portion that does not become the blister pack from the band-shaped blister film on which the cover film is attached to the container film,
In the step after blanking the scrap portion, comprising a blister pack separating means for separating the blister pack serving as a product from the blister film,
A blister packaging machine comprising the cutting device according to any one of claims 1 to 8 as the blister pack separation means.

Images