JP2005060042A - Article carrying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify a structure of an article carrying device by providing a motor and an air cylinder functioning as the driving source on a fixed frame side. <P>SOLUTION: A second carrying means is provided with a plurality of clamp mechanisms 12 disposed at even pitch. The second carrying means is provided on a second moving base 41, and the second moving base 41 is intermittently reciprocated along a carrying direction of an article by the motor attached to the fixed frame. The clamp mechanism 12 is actuated to open/close and ascend/descend by a cam mechanism 52. The cam mechanism 52 comprises a cam follower 54 provided on an actuating member 44 capable of ascending and descending, a plurality of ascending/descending cams 55 provided at a stop position of each clamp mechanism 12 in the carrying direction, and the air cylinder 57 provided on the fixed frame 13 side to hoist/lower the ascending/descending cam 55. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an article conveying apparatus, and more particularly, to an article conveying apparatus suitable for an article when a plurality of bag-like containers are simultaneously conveyed downstream in the conveying direction in a container manufacturing system for producing a bag-like container, for example.

Conventionally, the container manufacturing system which manufactures a bag-shaped container from a sheet-like material is known (for example, patent document 1). In the container manufacturing system disclosed in Patent Document 1, a sheet-like material is cut into a predetermined size, each material cut into a predetermined size is then inflated into a cylindrical shape, and then a port is crimped to both longitudinal openings. The container is manufactured.
Patent Publication No. 2547890

As described above, in the conventional container manufacturing system, the bag-shaped container is manufactured through the cutting process and the port crimping process. However, conventionally, the number of materials to be processed in the cutting process and the crimping process is small, so the container There was a drawback that the productivity of the entire manufacturing system was poor.
Therefore, in order to improve the productivity of the container manufacturing system, for example, it is conceivable to process a large number of materials at once in the cutting process and the port crimping process.
However, if a large number of materials are processed at a time in each step as described above, there is a disadvantage that the conveying process of the article conveying device that conveys the material becomes long. In addition, a clamping mechanism is required to carry in or carry out a plurality of materials at the same time at a position where each processing step is performed, and an air cylinder and a motor for operating the clamping mechanism along with the clamping mechanism along the conveying direction. It needs to be moved. For this reason, there is a disadvantage that the configuration of the article conveying device and the drive source of the clamp mechanism becomes complicated.

In view of the circumstances described above, the present invention provides a plurality of clamp mechanisms that are arranged along the conveyance direction of an article and detachably grip the article, and an upstream moving end and a downstream side of the clamp mechanism along the conveyance direction. An article conveying apparatus comprising: a moving means that reciprocates to a moving end; a fixed frame having a track of the moving means; and a cam mechanism that opens and closes each of the clamp mechanisms.
It is an object of the present invention to provide an article conveying apparatus in which a driving source for the moving means and a driving source for the cam mechanism are provided on a fixed frame.

  According to such a configuration, since the driving source of the moving means and the cam mechanism is provided in the fixed frame, the moving means and the cam mechanism are compared with the case where the driving source is provided in the movable part of the moving means and the cam mechanism. The configuration can be simplified. Accordingly, it is possible to provide an article conveying apparatus having a simple configuration.

Hereinafter, the present invention will be described with reference to the illustrated embodiments. In FIGS. 1 and 2, reference numeral 1 denotes a container manufacturing system. The container manufacturing system 1 cuts an elongated strip-shaped material W into a sheet S having a predetermined length. Then, the bag-like container (infusion bag) 2 shown in FIG. 3 is manufactured from each sheet S.
A container manufacturing system 1 includes a cutting device 3 that is provided at a cutting position A as a first article supply / discharge position, and cuts a sheet S formed into a continuous elongated strip into two sheets S having a predetermined length, and a cutting device 3 It is arranged at the crimping position B downstream of the apparatus 3 in the conveyance direction of the sheet S and serving as the second article supply / discharge position, and the port 2A is crimped to the sheet S to form into the bag-like container 2. A crimping device 4 and a conveying device 5 that is disposed over the cutting position A, the crimping position B, and the delivery position C between them, and transports the sheet S and the bag-like container 2 to the downstream side.
The cutting device 3, the conveying device 5, and the crimping device 4 are arranged horizontally at substantially the same height, and the sheet S is sequentially conveyed in the horizontal direction to the cutting device 3, the conveying device 5, and the crimping device 4. Thus, the bag-like container 2 is formed.
In the present embodiment, the position where the cutting device 3 cuts the material W is a cutting position A as a first article supply / discharge position, and the position where the crimping device 4 is provided is a pressure bonding position B as a second article supply / discharge position. Furthermore, the position between the cutting position A and the crimping position B is set as a delivery position C.

The material W before cutting is intermittently supplied to the cutting device 3 at the cutting position A by a conveying means (not shown). When the material W is intermittently supplied to the cutting position A in this way, two sheets S having a predetermined length from the front end are simultaneously cut by the conventionally known cutting device 3.
In the present embodiment, two sheets S are intermittently cut out at the cutting position A at the same time, and two sheets S are sequentially transferred from the cutting position A to the delivery position C by the conveying device 5, and the inside of the delivery position C When eight sheets S are conveyed, the eight sheets S are conveyed from the delivery position C to the crimping position B all at once.
At the crimping position B, the port 2A is simultaneously crimped to the openings on both sides of the eight sheets S by the conventionally known crimping device 4 (FIG. 3). Then, when eight sheets S are carried from the delivery position C to the crimping position B by the conveying device 5 described above, at the same time, the eight sheets S which have been transported to the crimping position B first and the crimping of the port 2A is finished. The minute bag-like container 2 is transported from the crimping position B to the adjacent downstream side by the transport device 5.

  As will be described in detail later, the transport device 5 has an accumulating function for holding eight sheets S at the delivery position C, thereby matching the processing speed of the crimping operation by the crimping device 4 that takes a long processing time. In addition, the processing speed of the cutting work by the cutting device 3 can be set.

Here, before describing the detailed configuration of the transport apparatus 5 of the present embodiment, the main components of the transport apparatus 5 and the general operation thereof will be described.
That is, as shown in a simplified manner in FIG. 4, the conveying device 5 includes a first conveying means 6 that is reciprocated by a predetermined stroke between the cutting position A and the delivery position C, and the crimping position B and the adjacent position from the delivery position C. The second conveying means 7 capable of reciprocating by a predetermined stroke over the downstream position D, and the clamping means provided from the cutting position A to the delivery position C and from there to the entire area of the crimping position B and its adjacent downstream side. 8 and.
During the transfer in which the plurality of sheets S and the plurality of bag-like containers 2 are intermittently transferred to the downstream side by both conveying means 6, the clamp means 8 is opened, and the plurality of sheets S and the bag-like containers 2 are Movement to the downstream side in the transport direction is allowed. On the other hand, when both conveying means 6 stop moving at the moving end on the downstream side and release the gripping state of the plurality of sheets S and the bag-like container 2 by them, the clamping means 8 is closed, At the same time that the plurality of sheets at the cutting position A and the delivery position C are gripped by the clamping means 8, the bag-like container 2 is gripped at the crimping position by the clamping means 8.
The first transport unit 6 includes eight pairs of left and right clamp mechanisms 11 provided at a predetermined pitch P in the transport direction. The first transport unit 6 includes a downstream moving end that overlaps the entire region of the delivery position C, and From there, it is moved back and forth between the upstream moving end including the cutting position A on the upstream side by two pitches. The first conveying means 6 can carry the sheet S from the cutting position A to the delivery position C by gripping both sides of the sheet S by the clamp mechanism 11 of the first conveying means 6.

The clamp means 8 is fixedly provided over the entire cutting position A, delivery position C, crimping position B, and the adjacent downstream side thereof, and can simultaneously hold eight sheets S conveyed to the delivery position C. In addition, the gripping state of the eight sheets S can be released at the same time. As will be described later, the clamp means 8 includes a pair of upper and lower guide members 34 and 35 disposed on the left and right sides along the conveying direction (see FIG. 6), and the gap between the guide members 34 and 35 on the left and right sides is formed in the sheet. S passes through. When required, the upper end portion of the piston 37A of the air cylinder 37 protrudes upward from the guide member 35 through the through hole 35A of the lower guide member 35, so that the transfer position is achieved by the tip of the piston 37A and the guide member 34. The eight sheets S in C can be gripped simultaneously. On the other hand, the gripping state of the sheet S can be released by retracting the piston 37 </ b> A below the guide member 35.
The second transport means 7 has a length from the delivery position C corresponding to 16 pitches P to the crimping position B, and 16 clamp mechanisms 12 for each pitch P in the transport direction. ing. That is, 16 clamp mechanisms 12 of the second transport unit 7 are provided at the same pitch as the clamp mechanisms 11 of the first transport unit 6.
The 16 clamp mechanisms 12 provided in the second transport means 7 can be opened and closed simultaneously. Further, the second conveying means 7 has an upstream moving end (FIG. 4a) in a state of being stopped from the whole area of the delivery position C to the whole area of the crimping position B, and from there to the adjacent downstream side by eight pitches P. It can be moved back and forth intermittently to the shifted downstream end (FIG. 4j).

  The clamp mechanism 12 of the second conveying means 7 is configured such that when eight sheets S are carried into the delivery position C at a predetermined pitch P, the center side of the edge portion which is the front side in the conveying direction of each of the eight sheets S Is to be gripped. That is, the clamp mechanism 12 protrudes from between the adjacent sheets S to the upper side thereof, holds the sheet S by each clamp mechanism 12, and moves to the downstream moving end, and then the clamps 12 The mechanism 12 releases the gripping state of the sheet S and, at the same time, descends from between the adjacent sheets S to the lower side thereof. Thereafter, when the second conveying means 7 moves to the upstream side moving end, the clamp mechanism 12 passes the lower side of the sheet S that has been released from the gripping state.

Then, as shown in FIG. 4a, in a state where the second conveying means 7 is stopped at the upstream moving end, the first conveying means 6 moves to the upstream moving end and the most upstream side and the second clamp When the mechanism 11 is located at the cutting position A, the both sides of the two sheets S cut at the cutting position A are gripped by the uppermost stream side and the second two clamping mechanisms 11 in the first conveying means 6. .
Then, the 1st clamp mechanism 6 of the state which hold | gripped the 2 sheet | seat S moves to a downstream moving end (FIG. 4b). As a result, the two sheets S are carried into the delivery position C by the most upstream side and the second clamping mechanism 11, and the guide member 34 of the clamping means 8 at the delivery position C and the piston 37A in which the air cylinder 37 is raised. While the two sheets S are gripped, the gripping state of the sheet S by the uppermost stream side of the first conveying means 6 and the second clamp mechanism 11 is released (FIG. 4b). That is, two sheets S are carried into the delivery position C.
Next, the first transport unit 6 is moved again by 2 pitches P to the upstream moving end, and is at the cutting position A by the most upstream side of the first transport unit 6 and the second two clamp mechanisms 11. Two new sheets S are gripped (FIG. 4c). At the same time, the two sheets S previously carried into the delivery position C are held by the third and fourth clamp mechanisms 11 from the upstream side of the first conveying means 6. That is, the four sheets S are simultaneously held by the clamp mechanism 11 from the uppermost stream side of the first conveying means 6 to the fourth (FIG. 4c).
Then, the two sheets S at the delivery position C are released from the gripping state by the clamping means 8. After that, the first conveying means 6 holding the four sheets S moves again by 2 pitches P to the downstream moving end (FIG. 4d). As a result, a total of four sheets S are conveyed to the delivery position C, and thereafter, these four sheets S are simultaneously gripped by the clamping means 8 at the delivery position C.

Next, the first conveying unit 6 moves from the release state of the four sheets S to the upstream moving end by 2 pitches P again, and is moved by the most upstream side and the second clamping mechanism 11. At the same time as holding two new sheets S at the cutting position A, the third to sixth clamping mechanisms 11 simultaneously hold the four sheets S already at the delivery position C (FIG. 4e). As a result, the six sheets S are gripped by the most upstream side of the first conveying means 6 and the sixth clamping mechanism 11 from there, and thereafter, the sheet is in the delivery position C by the clamping means 8. The gripping state of the four sheets S is released.
Then, the first conveying means 6 moves again by 2 pitches P to the downstream side moving end, so that a total of six sheets S are carried into the delivery position C, and these six sheets S are gripped by the clamping means 8. (FIG. 4f).
Thereafter, the gripping state of the six sheets S by the first conveying unit 6 is released, and then the first conveying unit 6 moves again by 2 pitches P to the upstream moving end, and 2 at the cutting position A. The sheet S and the six sheets S at the delivery position C are gripped by the eight clamp mechanisms 11 provided in the first transport unit 6. That is, the first transport unit 6 is in a state of simultaneously gripping the eight sheets S, and then the clamp unit 8 releases the gripping state of the six sheets S at the delivery position C (FIG. 4g).

After that, the first conveying means 6 holding the eight sheets S by the clamp mechanism 11 moves by 2 pitches P to the delivery position C which is the downstream side moving end, so that the eight sheets S have a predetermined pitch P. In FIG. 4h, these eight sheets S are simultaneously held by the clamping means 8 (FIG. 4h). Thereafter, the first transport unit 6 releases the gripping state of the eight sheets S by the clamp mechanism 11, moves again by 2 pitches P to the upstream side movement end, and then the most upstream side and the second clamp mechanism. 11, the two new sheets S are gripped at the cutting position A.
On the other hand, the second conveying means 7 that has been stopped at the upstream side moving end raises the eight clamp mechanisms 12 through the adjacent gaps of the eight sheets S at the delivery position C, and passes the delivery position. Eight sheets S at the transfer position C are held together by the eighth clamp mechanism 12 from the most upstream side located at C. At the same time, the ninth to sixteenth clamping mechanisms 12 located at the downstream crimping position B are connected to the eight adjacent bag-like containers 2 for which the crimping operation of the port 2A at the crimping position B is completed. Ascending from the middle, the bag-like containers 2 are gripped all at once (FIG. 4i).
On the other hand, during this time, the first conveying means 6 moves to the upstream moving end, and the two sheets S at the cutting position are gripped by the most upstream side and the second clamping mechanism 11. Meanwhile, the other six clamping mechanisms 11 are open.
Thereafter, the second conveying means 7 moves to the downstream moving end by 8 pitches P, and at the same time, the first conveying means 6 moves to the downstream moving end shifted by 2 pitches from the upstream moving end. .
As a result, the eight bag-like containers 2 for which the crimping operation has been completed are discharged to a position on the downstream side adjacent to the crimping position B, and at the same time, eight new sheets S are conveyed to the crimping position B. (FIG. 4j).
After gripping by the clamp means 8, the gripping state of the eight bag-like containers 2 and the eight sheets S by the clamp mechanism 12 of the second transport means 7 is released at the same time, and at the same time, the clamp mechanism of the second transport means 7 12 moves down between the adjacent bag-like containers 2 and between the adjacent sheets S to a position where it does not interfere with the bag-like containers 2 and the sheets S.
During this time, the first conveying means 6 carries the sheet S held by the uppermost stream side and the second clamping mechanism 11 to the delivery position C, and the two sheets S are moved by the clamping means 8. After being gripped, the gripping state of the two sheets S is released.
Thereafter, the second transport means 7 moves to the upstream side moving end shifted to the upstream side by 8 pitches P from the position of the downstream side moving end and stops.

Thereafter, the operation described above with reference to FIGS. 4a to 4j is repeated, and the two sheets S are cut at the cutting position A, and the cut sheets S are sequentially carried into the delivery position C. Transport of a total of eight sheets S to the delivery position C, further transport of the eight sheets S carried into the delivery position C to the crimping position B, and unloading of the eight bag-like containers 2 from the crimping position B Is to be performed.
Next, the detailed configuration of the transport device 5 will be described. As shown in FIGS. 5 to 8, the transport device 5 is a pair of guide rails 14 horizontally disposed on the left and right sides of the fixed frame 13 along the transport direction. , 14 is provided, and a guide rail 15 is provided horizontally at a middle position between them and in parallel therewith.
The first conveying means 6 is movably attached to the guide rails 14, 14, and the second conveying means 7 is movably attached to the guide rail 15. The clamping means 8 is disposed at an inner position adjacent to the first conveying means 6. 6 to 8, the specific configuration of the second transport unit 7 is not shown in order to facilitate understanding of the configuration of the first transport unit 6. The first transport unit 6 includes the guide rails 14. The first movable base 16 movably attached to the first movable base 16 and eight clamp mechanisms 11 attached at an equal pitch P in the longitudinal direction of the first movable base 16 are provided. That is, the first conveying unit 6 includes a total of 16 clamping mechanisms 11 at opposing positions on both the left and right sides in the conveying direction, and both sides in the conveying direction of the sheet S by the pair of clamping mechanisms 11 at the left and right opposing positions. Is to be gripped.

As shown in FIG. 5, a plurality of gears 17 and 18 are rotatably attached to the side surface of the fixed frame 13 on the lower side of the first movable base 16. An endless timing belt 21 is stretched over the plurality of gears 17 and 18. A predetermined portion of the timing belt 21 is connected to the first movable base 16 by a connecting member 20. One of the gears 18 is interlocked with a motor 22 connected to the fixed frame 13. The operation of the motor 22 is controlled by a control device (not shown). The control device rotates the motor 22 by the required amount in the forward and reverse directions to move the first movable base 16 by two pitches P, and the second most upstream side of the first conveying means 6 and the second upstream side. The second clamp mechanism 11 is intermittently reciprocated between the upstream moving end located at the cutting position A and the eight clamping mechanisms 11 located downstream at the delivery position C.
As described above, in this embodiment, the timing belt 21, the gear 17, the gear 18, and the motor 22 constitute the first reciprocating drive mechanism 19, and the first reciprocating drive mechanism 19 converts the first clamp mechanism 11 into two. A reciprocal movement is made in the transport direction by the pitch.

The clamp mechanism 11 includes a pair of brackets 23 erected on the first movable base 16, a pair of upper and lower clamp members 25, 25 ′ supported between the brackets 23 by a support shaft 24 parallel to the transport direction, A plate-like elevating member 26 attached to the side clamp member 25 so as to be movable up and down, and a cam mechanism 27 for opening and closing the clamp members 25 and 25 ′ are provided.
The lower clamp member 25 is connected to the upper end of the elevating member 26 so that the holding surface for holding the sheet S is horizontal, and the elevating member 26 and the first movable base 16 are moved up and down by the cam mechanism 27. It has become.
On the other hand, the upper clamp member 25 ′ can swing vertically by a horizontal support shaft 24 provided on the bracket 23. As shown in FIGS. 6 and 7, the upper clamp member 25 ′ is formed with a long hole 25 A ′ inclined with respect to the longitudinal direction thereof. On the other hand, a roller 25A that fits into the elongated hole 25A ′ is rotatably attached to the lower clamp member 25, and this roller 25A is engaged with the elongated hole 25A of the upper clamp member 25 ′.
When the elevating cam 32 is lowered to the lowered position by the cam mechanism 27, the elevating member 26 and the lower clamp member 25 are lowered, and the upper clamp member 25 'is swung upward, and these clamp members are moved upward. 25 and 25 'are opened (FIG. 8). On the other hand, when the raising / lowering cam 32 is raised to the raised position by the cam mechanism 27, the raising / lowering member 26 and the lower clamp member 25 are raised, and the upper clamp member 25 'is swung downward, and these clamp members The side portions in the transport direction of the sheet S are gripped by 25 and 25 ′.
A cam follower 28 is rotatably attached to the elevating member 26, and a spring 31 is provided across the lower end portion of the elevating member 26 and the first movable base 16. The elevating member 26 is constantly biased upward by the spring 31. An elevating cam 32 is disposed between the elevating member 26 and the guide rail 14 in parallel with the guide rail 14 and horizontally.

The elevating cam 32 includes an upstream region, an upstream region where the second clamp mechanism 11 moves in the conveyance direction, and a downstream region where the third to eighth clamp mechanisms 11 move in the conveyance direction. The area is divided into two parts. These upstream raising / lowering cam 32 and downstream raising / lowering cam 32 are not provided on the same straight line in the conveyance direction, but are slightly shifted in the direction orthogonal to the conveyance direction. The upstream and downstream elevating cams 32 are connected to an air cylinder 33 that is directed vertically upward to the fixed frame 13 (FIG. 6). That is, the uppermost stream side, the upstream lifting cam 32 for the second clamping mechanism 11, and the downstream lifting cam 32 for the third to eighth clamping mechanisms 11 are arranged on the left and right sides in the conveying direction. The air cylinder 33 for the upstream raising / lowering cam 32 and the air cylinder 33 for the downstream raising / lowering cam 32 are separately controlled by a control device.
Since the elevating member 26 is always urged upward by the spring 31, the cam follower 28 is engaged with the cam surface of the elevating cam 32 from below. The elevating cam 26 and the cam follower 28 form a cam mechanism 27.
As shown in FIG. 6, when the elevating cam 32 is positioned at the ascending movement end by the control device, the clamp members 25, 25 ′ of each clamp mechanism 11 are closed by the urging force of the spring 31 to grip the sheet S. be able to. On the other hand, when the elevating cam 32 is lowered to the lowering movement end by the control device, the cam follower 28 and the elevating member 26 are also lowered, so that the clamp members 25 and 25 ′ are opened in conjunction therewith. As described above, the opening / closing operation of the clamp members 25 and 25 ′ in the most upstream side and the second clamp mechanism 11 and the clamp members 25 of the six clamp mechanisms 11 from the third to the eighth downstream side are provided. , 25 'is controlled separately by the control device.

That is, the uppermost stream side and the second clamp mechanism 11 are opened and closed simultaneously in synchronism with each other, while the six clamp mechanisms 11 on the downstream side are synchronized with each other separately from their opening and closing operations. They are opened and closed at the same time.
The control device rotates the motor 22 of the first reciprocating drive mechanism 19 in the forward and reverse directions to intermittently reciprocate the first conveying means 6 between the upstream side moving end and the downstream side moving end. The control device simultaneously opens and closes the uppermost stream and the second clamp mechanism 11 at the upstream side moving end or at the downstream side moving end, and independently from the opening and closing operations thereof. The six clamping mechanisms 11 are simultaneously opened and closed in synchronization.
As a result, as described above, when the first conveying unit 6 is at the upstream moving end, the two sheets S at the cutting position A are held by the uppermost stream side and the second two clamp mechanisms 11. It is like that. When the first conveying means 6 holding the two sheets S is moved by 2 pitches P to the downstream side moving end, the two sheets S are conveyed to the delivery position C. These two sheets S are gripped by the clamping means 8 (FIGS. 4a and 4b).
Then, after the gripping state by the eight clamp mechanisms 11 is released by the control device, the first transport unit 6 is moved again to the upstream side moving end (FIG. 4c). At this time, since each clamp mechanism 11 is opened, the clamp member 25 in the open state of each clamp mechanism 11 passes through the vertical position of the two sheets S at the transfer position C.

When the first conveying means 6 is positioned at the upstream moving end by the control device, the uppermost stream side in the released state and the both sides of the two sheets S in which the clamp members 25 of the second clamp mechanism 11 are at the cutting position A Can be gripped, and both side portions of the first two sheets S at the delivery position C can be gripped by the clamp members 25 of the third and fourth clamp mechanisms 11.
Then, since the control device closes all the eight clamp mechanisms 11, both sides of the two sheets S at the cutting position A are gripped by the uppermost stream side and the second clamp mechanism 11 at the same time as the delivery. The first two sheets S at the position C are gripped on both sides by the third and fourth clamping mechanisms 11 (FIG. 4d).
Thereafter, the gripping state of the two sheets S at the delivery position C by the clamping means 8 is released, and then the control device moves the first conveying means to the downstream moving end shifted by 2 pitches P from the upstream moving end. 6 is moved. As a result, the four sheets S are conveyed to the delivery position C, and the four sheets S are simultaneously held by the clamp means 8.
Then, the control device opens all the eight clamping mechanisms 11 at the same time, and then moves the first conveying means 6 by 2 pitches P from the downstream moving end to the upstream moving end (FIG. 4e). As a result, the most upstream side of the first conveying means 6 and the second open clamp mechanism 11 are located at positions where the two sheets S at the cutting position A can be gripped, and from the third to the sixth. The four sheets S at the transfer position C can be gripped by the second open clamp mechanism 11.

Thereafter, the control device closes all eight clamping mechanisms 11, so that the two sheets S at the cutting position A are gripped by the uppermost stream side of the first conveying means 6 and the second clamping mechanism 11. At the same time, the fourth to sixth clamp mechanisms 11 hold the four sheets S at the transfer position C.
Thereafter, the gripping state of the four sheets S at the delivery position C by the clamping means 8 is released, so that the control device moves the first conveying means 6 by 2 pitches P from the upstream moving end to the downstream moving end. (Fig. 4f). As a result, the six sheets S held by the sixth clamping mechanism 11 from the most upstream side are conveyed to the delivery position C. Thereafter, the six sheets S at the delivery position C are simultaneously gripped by the clamp means 8.
Next, after the gripping state of the sheet S by all the clamp mechanisms 11 is released by the control device, the first transport unit 6 is moved by 2 pitches P from the downstream moving end to the upstream moving end (FIG. 4g). .
As a result, the most upstream side of the first conveying means 6 and the second open clamp mechanism 11 are located at positions where the two sheets S at the cutting position A can be gripped, and from the third to the eighth. The six sheets S at the transfer position C can be gripped by the second open clamp mechanism 11.
Thereafter, the control device closes all eight clamping mechanisms 11, so that the two sheets S at the cutting position A are gripped by the uppermost stream side of the first conveying means 6 and the second clamping mechanism 11. At the same time, the six sheets S at the transfer position C are held by the third to eighth clamp mechanisms 11. That is, a total of eight sheets S are gripped by all eight clamp mechanisms 11.
Thereafter, when the gripping state of the six sheets S at the delivery position C by the clamp unit 8 is released, the control device moves the first conveying unit 6 from the upstream moving end to the downstream moving end by 2 pitches P. (Fig. 4h).
Accordingly, a total of eight sheets S are conveyed to the delivery position C. Thereafter, the eight sheets S at the delivery position C are simultaneously gripped by the clamping means 8.
As described above, two sheets S from the cutting position A are sequentially conveyed to the delivery position C by the first conveyance means 6, and the sheet S conveyed to the delivery position C is gripped by the clamping means 8. A total of eight sheets S are conveyed to the delivery position C.
Next, the configuration of the clamping means 8 will be described with reference to FIGS. 6 and 7. As described above, the clamping means 8 is extended from the cutting position A to the delivery position C, and further to the crimping position B and the entire downstream area. A pair of upper and lower guide members 34 and 35 are provided at positions on both the left and right sides in the transport direction.
These guide members 34, 35 are arranged in parallel with the guide rail 14 and are arranged in close proximity to the clamp mechanism 11 of the first transport means 6.
The upper guide member 34 is fixed to the fixed frame 13, whereby the guide surface of the guide member 34 is positioned slightly higher than the gripping surface of the clamp mechanism 11.

On the other hand, the lower guide member 35 is fixed to the fixed frame 13 by a bracket (not shown) with a slight gap from the upper guide member 34.
Both guide members 34 and 35 are opposed to each other in the vertical position, and a gap that allows the sheet S to pass sufficiently is maintained between them.
Below the guide member 35, a plurality of air cylinders 37 are arranged at the stop positions of the respective sheets S in the longitudinal direction, and these air cylinders 37 are connected to the fixed frame 13 via brackets 36. Yes. The piston 37 </ b> A of the air cylinder 37 is supported vertically upward, and a through hole 35 </ b> A is formed at a position on the guide member 35 that is located above the piston 37 </ b> A.
The operation of the air cylinder 37 is controlled by a control device (not shown). When the piston 37A is positioned at the lower end shown in FIG. In this state, the sheet S can pass through the gap between the lower guide member 35 and the upper guide member 34 with a margin.
On the other hand, when the piston 37A of the air cylinder 37 is raised by the control device, the piston 37A penetrates the through hole 35A of the guide member 35, protrudes upward from the guide member 35, and the upper guide member 34 and It comes to contact. That is, the sheet S is always present between the guide members 34 and 35 at the cutting position A, the delivery position C, the crimping position B, and the adjacent downstream side position. When the first conveying means 6 moves to the delivery position C with the clamp mechanism 11 gripping two to eight sheets S, and the piston 37A of the air cylinder 37 is raised by the control device, the delivery position is reached. All the sheets S conveyed into C are gripped by the piston 37A and the guide member 34 all at once.
Further, when the control device lowers the piston 37A of the air cylinder 37 from the gripping state, the gripping state of the sheet S conveyed into the delivery position C can be released all at once. That is, in this state, the sheet S can pass between the upper and lower guide members 34 and 35, and when the sheet S passes between both the members 34 and 35, the movement is guided by the both guide members 34 and 35. It is like that.
The 1st conveyance means 6 and the clamp means 8 are comprised as mentioned above.

Next, the structure of the 2nd conveyance means 7 is demonstrated with reference to FIG. 9 thru | or FIG.
The second transport means 7 includes a second movable base 41 that can move along the guide rail 15 and 16 clamp mechanisms 12 that are attached at an equal pitch P in the longitudinal direction of the second movable base 41. The pitch P separated by the adjacent clamp mechanisms 12 is the same as the pitch P separated by the adjacent clamp mechanisms 11 of the first conveying means 6.
As shown in FIG. 9, a plurality of gears 42 and 43 are rotatably provided on the side surface of the fixed frame 13, and a motor 45 is connected. An endless timing belt 44 is stretched over the gear 46 attached to the drive shaft of the motor 45 and the plurality of gears 42 and 43. A predetermined portion of the timing belt 44 is connected to the second movable base 41 by a connecting member 40.
The operation of the motor 45 is controlled by a control device (not shown). The control device rotates the motor 45 forward and backward by a required amount to reciprocate the second movable base 41 intermittently along the guide rail 15 by 8 pitches P. Yes. In the present embodiment, the gears 42 and 43, the timing belt 44, the motor 45 and the gear 46 constitute a second reciprocating drive mechanism 49, and the second reciprocating drive mechanism 49 delivers the clamp mechanism 12 to the delivery position C and the first position. 2 It is designed to reciprocate to the crimping position B, which is the article supply / discharge position.
That is, the state where the most upstream side and the eighth clamping mechanism 12 from there are stopped at the delivery position C, and the ninth to sixteenth clamping mechanisms 12 on the downstream side are stopped at the crimping position B. 2 An upstream side moving end of the movable base 41. On the other hand, the most upstream side and the eighth clamping mechanism 12 from there stop at the crimping position B, and the ninth to sixteenth clamping mechanisms 12 on the downstream side stop at the adjacent downstream side of the crimping position B. The state is the downstream side moving end of the second movable base 41.
In a state where the second transport unit 7 is located at the upstream moving end or the downstream moving end, the stop position of each clamp mechanism 12 of the second transport unit 7 is a predetermined position with respect to the longitudinal direction of the fixed frame 13. That is, the stop positions at which the ninth to sixteenth clamping mechanisms 12 stop at the upstream moving end are the most upstream side at the downstream moving end and the stop positions at which the eighth clamping mechanism 12 stops there. It is supposed to match.
In the state where the second conveying means 7 is positioned at the upstream side moving end or the downstream side moving end, the clamp means 8 grips the side portions of the plurality of sheets S and the plurality of bag-like containers 2.

When the second movable base 41 is at the upstream moving end, each clamp mechanism 12 protrudes upward from between adjacent sheets S (or bag-like containers 2) present at the delivery position C and the crimping position B. The front part in the conveyance direction of the sheet S is gripped. Thereafter, the gripping state of the sheet S (or the bag-like container 2) by the clamp means 8 is released. Thereafter, when the second movable base 41 is moved from the upstream moving end to the downstream moving end, the sheet S (or the bag-like container 2) held by each clamp mechanism 12 is conveyed by 8 pitches. It will be. As a result, the eight sheets S are simultaneously transferred from the delivery position C to the pressure bonding position B, and at the same time, the eight bag-like containers 2 at the pressure bonding position B are simultaneously discharged downstream. .
When the second movable base 41 is positioned at the downstream side moving end, each clamp mechanism 12 stops at the predetermined position described above, so that the bag-like container 2 in the crimping position B is gripped by the clamp means 8. Thereafter, each clamp mechanism 12 releases the gripping state of the adjacent sheet S (or bag-like container 2) existing at the delivery position C and the crimping position B, and descends below them.
Thus, in a state where the clamp mechanisms 12 are lowered and do not interfere with the sheet S (or the bag-like container 2), the second movable base 41 is moved from the downstream moving end to the upstream moving end. It has become. At that time, since each clamp mechanism 12 is below the sheet S or the bag-like container 2, it does not interfere with them.
The bag-like container 2 at the crimping position B is maintained in a gripped state by the clamping means 8, and in this state, the port 2 </ b> A is crimped by the crimping device 4.
That is, the individual clamp mechanisms 12 are moved from the downstream moving end to the upstream moving end in the lowered state, lifted at the upstream moving end, gripping the sheet S (bag-like container 2), and lifted. The movement from the upstream moving end to the downstream moving end, the release and lowering of the gripping state of the sheet S (bag-like container 2) at the downstream moving end, and the downstream side from the downstream moving end in the further lowered state The movement to the moving end is repeated.

As shown in FIGS. 10 to 13, the clamp mechanism 12 includes an operating member 47 disposed on both the left and right sides of the second movable base 41 and a pair of upper and lower gripping members 48, 48 ′ attached to the upper portion of the operating member 47. And a link mechanism 51 provided across the second movable base 41 and the gripping members 48, 48 ′.
Each clamp mechanism 12 is moved up and down by a cam mechanism 52, and the gripping member 48 is opened and closed.
The operating member 47 is attached to the second movable base 41 so as to be movable up and down, and the operating member 47 is always urged upward by a spring 53 attached over the second movable base 41 and the lower end portion of the operating member 47. ing.
A cam follower 54 is attached to the side surface of the operating member 47, and the cam follower 54 is engaged with the elevating cam 55 and the fixed cam 56 so that the position of the operating member 47 is regulated. In this embodiment, a cam mechanism 52 is constituted by the operating member 47, the cam follower 54, the elevating cam 55, and the fixed cam 56.
The lower gripping member 48 is horizontally fixed to the upper portion of the operating member 47 by a bracket, but the upper gripping member 48 ′ swings around the support pin 50 in conjunction with the link mechanism 51. It has come to be.
As shown in FIGS. 12 and 14 a, when the operating member 47 is raised to the rising end by the elevating cam 55, the link mechanism 51 is extended. Accordingly, the upper gripping member 48 ′ protrudes upward from the sheet S at the delivery position C (and the bag-like container 2 at the crimping position B), and the upper gripping member 48 ′ supports the support pin 50. As a center, it is rotated counterclockwise by about 90 ° and supported in the horizontal direction. At the same time, the lower holding member 48 is also raised to a height at which it comes into contact with the lower surface of the sheet S. Therefore, the upper and lower gripping members 48 and 48 ′ grip the central portion of the sheet S (and the bag-like container 2) on the front side in the conveyance direction in the width direction.
On the other hand, when the actuating member 47 is lowered from the raised end position to the lowered end position by the elevating cam 55 as shown in FIGS. 13 and 14a to 14e, the lower holding member 48 is lowered and the link mechanism 51 is moved. It can be bent. Accordingly, since the upper gripping member 48 ′ is rotated clockwise by 90 degrees about the support pin 50 and supported in the vertical direction, both the gripping members 48, 48 ′ are opened and thereby The gripping state of the sheet S (or the bag-like container 2) is released, and both the gripping members 48 and 48 ′ are lowered to a lower position that does not interfere with the sheet S (or the bag-like container 2). ing.

In the present embodiment, the 16 clamping mechanisms 12 included in the second conveying means 7 are opened / closed and lifted / lowered synchronously, but at that time, a single elongated lift / fall from the delivery position C to the crimping position B is achieved. Rather than using a cam, the raising / lowering cam 55 is provided only in the required location in the conveyance direction, thereby simplifying the configuration of the cam mechanism 52.
That is, each raising / lowering cam 55 is arrange | positioned in the stop position of each clamp mechanism 12 when the 2nd conveyance means 7 is located in an upstream moving end or a downstream moving end. Each lifting cam 55 is connected to a piston of an air cylinder 57 attached to the fixed frame 13 vertically upward and is supported horizontally.
Each air cylinder 57 is supplied and discharged with compressed air from a single compressed air supply source (not shown), and the operation of the compressed air supply source is controlled by a control device (not shown). The control device can raise and lower all the raising and lowering cams 55 via the air cylinders 57 in synchronization with the rising end position shown in FIG. 12 and the lowering end position shown in FIG. As described above, when the elevating cam 55 is moved to the ascending end position, the gripping members 48 and 48 'are raised and closed via the link mechanism 51, while the elevating cam 55 is lowered. When lowered to the end position, the gripping members 48, 48 'are opened and lowered to the lower position.

On the other hand, in the present embodiment, a plurality of fixed cams 56 are arranged at positions between adjacent lifting cams 55, and these fixed cams 56 are horizontal at the same height on the side surface of the fixed frame 13. So that they are connected. In the present embodiment, the lower surface of the fixed cam 56 is used as the cam surface 56A.
Immediately before the raising / lowering cam 55 is positioned at the rising end, the operating member 47 biased upward by the spring 53 and the gripping members 48, 48 ′ abut on (close) the cam mechanism 54 in conjunction with the link mechanism 51. The rise of is supposed to stop.
On the other hand, when the elevating cam 55 is positioned at the descending end lowered with respect to the fixed cam 56, the cam surface 55A of the elevating cam 55 becomes the same height as the cam surface 56A of the fixed cam 56. That is, in this state, in the region extending from the delivery position C to the crimping position B, the elevating cam 55 and the fixed cam 56 are at the same height, and are substantially in the same state as a single cam arranged horizontally. . In this state, the cam follower 54 of each clamp mechanism 12 is engaged with the cam surface 55A of the elevating cam 55 and the cam surface 56A of the fixed cam 56 that have the same height.
In this state, since the operating member 47 is also located at the lower end, the gripping members 48 and 48 'are opened, and below the sheet S (bag-like container 2) at the delivery position C and the crimping position B. It will be in a lowered state.
In a state where the grip members 48, 48 ′ of each clamp mechanism 12 are opened by the cam mechanism 52, the second movable base 41 is moved from the downstream moving end to the upstream moving end by the second reciprocating drive mechanism 49. ing. Thus, each clamp mechanism 12 can move upstream without interfering with the sheet S.

A support member 58 is disposed along the transport direction at a position on the adjacent upstream side of each clamp mechanism 12, and is fixed to the second movable base 41. The support member 58 is supported horizontally, and the support member 58 supports the central portion of the sheet S from below.
The operation of the second conveying means 7 configured as described above will be described.
That is, when the two sheets S are carried from the cutting position A to the delivery position C by the first conveying means 6 described above, the second conveying means 7 is located at the upstream side moving end, and each air cylinder 57. Thus, each clamping mechanism 12 is located at the lower end. In this state, each clamp mechanism 12 is positioned at the lower end, and the gripping members 48 and 48 'are opened. Further, the most upstream side and the eighth clamping mechanism 12 are stopped at positions between the adjacent ones when the eight sheets S are carried into the delivery position C, and from the ninth. The sixteenth clamping mechanisms 12 are stopped at positions between adjacent ones when the eight sheets S are carried into the crimping position B (FIG. 4a).

In the state where the second conveying means 7 is stopped at the upstream moving end in this manner, when the eight sheets S are conveyed to the delivery position C by the first conveying means 6 as described above (FIG. 4h) The control device moves the clamp mechanism 12 of the second transport means 7 to the rising end by the air cylinder 57 (FIG. 12).
As a result, the grip member 48 ′ on the uppermost stream side and the upper side of the clamp mechanism 12 from the uppermost side to the uppermost side protrudes to the upper side through the gap between the adjacent sheets S, and in the delivery position C. The eight sheets S are gripped by the gripping members 48 and 48 ′.
At this time, the lifting cam 55 is positioned at the rising end, and the operating member 47 biased upward by the spring 53 is positioned at the rising end when the gripping member 48 grips the sheet S. The cam followers 54 provided in each clamp mechanism 12 do not engage with the cam surface 55A of the lift cam 55 and the upper surface 56B of the fixed cam 56 at the raised position.
Thereafter, the gripping state of the eight sheets S in the delivery position C by the clamp means 8 is released.
From this state, the second reciprocating drive mechanism 49 moves the second movable base 41 and the second transport means 7 from the upstream moving end to the downstream moving end by 8 pitches. At that time, the cam followers 54 provided in the clamp mechanisms 12 are moved without contacting the cam surfaces 55A of the elevating cams 55 and the upper surfaces 56B of the fixed cams 56. Therefore, the gripping state of the sheet S by the gripping members 48 and 48 ′ of each clamp mechanism 12 is maintained.
As a result, the eight sheets S held by the eight clamp mechanisms 12 are carried into the crimping position B. Then, both sides of the eight sheets S are gripped by the clamping means 8.
After that, the control device lowers all the clamping mechanisms 12 to the lower end all at once by the air cylinder 57 to release the gripping state of the sheets S by the clamping mechanism 12, so that the eight sheets S are brought into the crimping position B. (FIG. 13). At this time, each elevating cam 55 is in the lowered end position, and its cam surface 55A is the same height as the cam surface 56A of the fixed cam 56.

Then, the second reciprocating drive mechanism 49 moves the second movable base 41 by 8 pitches from the downstream moving end to the upstream moving end. When the clamp mechanism 12 is positioned at the lower end as described above, the cam follower 54 of the clamp mechanism 12 engages with the cam surface 55A of the elevating cam 55 and the cam surface 56A of the fixed cam 56 and rolls there. . Therefore, each clamp mechanism 12 is maintained at the lowered end position, and is moved below the sheet S without contacting the sheet S.
Even when the second movable base 41 is moved from the downstream side moving end to the upstream side moving end, each of the clamp mechanisms 12 is positioned at the descending end and the gripping member 48 is kept open. At this time, the most upstream side and the eighth clamping mechanism 12 are in a standby state until eight new sheets S are conveyed to the delivery position C by the first conveying means 6, and the ninth to sixteenth The clamp mechanism 12 up to is in a standby state until the port 2A is crimped to the eight sheets S at the crimping position B.
Then, when the eight sheets S are conveyed to the delivery position C by the first conveying means 6 while the compression of the port 2A is completed on the eight sheets S at the crimping position B and the bag-like container 2 is completed. The control device moves the clamp mechanism 12 of the second transport means 7 to the rising end by the air cylinder 57.
As a result, the grip member 48 ′ of the clamp mechanism 12 from the most upstream side to the eighth position protrudes upward from between adjacent sheets S at the transfer position C, and the upper and lower grip members 48, 48 ′ Grasping S At the same time, the gripping members 48 ′ of the ninth to sixteenth clamping mechanisms 12 protrude upward from the space between the eight bag-like containers 2 at the crimping position B so that the upper and lower gripping members 48, 48 ′ The container 2 is gripped (FIGS. 4i and 12).
Thereafter, the gripping state of the sheet S by the clamp unit 8 is released.
Thereafter, the second reciprocating drive mechanism 49 moves the second movable base 41 by 8 pitches from the upstream moving end to the downstream moving end (FIG. 4j). At that time, the elevating cam 55 is maintained in the raised position, and the cam follower 54 of the clamp mechanism 12 moves without contacting the cam surface 55A of the elevating cam 55 and the upper surface 56B of the fixed cam 56.
In this way, when the second conveying means 7 is moved by 8 pitches from the upstream side moving end to the downstream side moving end, the eight bag-like containers 2 at the crimping position B are located downstream of the crimping position B. Simultaneously, the eight sheets S that were in the delivery position C are carried into the crimping position B (FIG. 4j).
After that, the control device lowers all the clamping mechanisms 12 all at once to the lower end by the air cylinder 57, so that the eight sheets S at the crimping position B are released from the holding state by the holding members 48, 48 ′ of the clamping mechanism 12. At the same time, the eight bag-like containers 2 conveyed to the downstream side adjacent to the crimping position B are also released from the gripping state by the gripping members 48, 48 ′ of the clamp mechanism 12.
At this time, each elevating cam 55 is in the lowered end position, and its cam surface 55A has the same height as the cam surface 56A of the fixed cam 56.

Then, the second reciprocating drive mechanism 49 moves the second movable base 41 by 8 pitches from the downstream moving end to the upstream moving end. Since the clamp mechanism 12 is located at the descending end, it does not interfere with the sheet S or the bag-like container 2. The cam follower 54 of the clamp mechanism 12 engages with the cam surface 55A of the lift cam 55 and the cam surface 56A of the fixed cam 56 and rolls there. Therefore, each clamp mechanism 12 is moved while maintaining the lowered end position.
Thereafter, the above-described operation is repeated by the second conveying means 7. That is, each clamp mechanism 12 of the second conveying means 7 moves in the lowered state from the downstream moving end to the upstream moving end, rises at the upstream moving end, and grips the sheet S (bag-like container 2). And the movement from the upstream side movement end to the downstream side movement end in a state where the sheet S (bag-like container 2) is gripped and the sheet S (bag-like container 2) is grasped at the downstream side movement end. The releasing and lowering and the movement from the downstream moving end to the upstream moving end are repeated in the further lowered state.

As described above, the transport device 5 according to the present exemplary embodiment includes the first transport unit 6 that transports the eight sheets S to the delivery position C, and simultaneously presses the eight sheets S from the delivery position C to the crimping position B. The second conveying means 7 is provided.
Therefore, it is not necessary to match the processing speed of the material W cutting operation by the cutting device 3 with the processing speed of the port crimping processing by the crimping device 4. Thereby, the cutting operation speed of the material W can be set to a processing speed faster than the processing speed in the port crimping process by the crimping device 4. Therefore, the productivity of the container manufacturing system 1 can be improved as compared with the conventional case.

----------- (second embodiment)
Next, FIGS. 15a to 15n show a second embodiment of the present invention. In the second embodiment, the clamping means 8 provided at the transfer position C in the first embodiment is omitted. Instead, the clamping mechanism 12 of the second conveying means 7 stopped at the delivery position C is used. Other configurations are the same as those of the first embodiment.
That is, the operation according to the second embodiment will be described with reference to FIGS. 15a to 15n. When the second conveying means 7 is stopped at the upstream moving end, the first conveying means 6 moves to the upstream moving end. Then, the two clamping mechanisms 11 at the most upstream side and the adjacent positions in the first conveying means 6 grip both sides of the two sheets S cut at the cutting position A (FIG. 15a).
Then, the first clamp mechanism 6 in a state where the two sheets S are gripped by the first reciprocating drive mechanism 19 moves to the downstream moving end (FIG. 15b). As a result, the two sheets S are carried into the delivery position C. Then, the clamp mechanism 12 of the second conveying means 7 is raised, and the two sheets S at the transfer position C are gripped by the uppermost stream side and the second clamp mechanism 12. Then, the gripping state of the two sheets S by the clamp mechanism 11 of the first transport unit 6 is released (FIG. 15c).
Next, the first transport unit 6 is moved again to the upstream moving end by the first reciprocating drive mechanism 19, and is at the cutting position A by the most upstream side of the first transport unit 6 and the second clamp mechanism 11. At the same time as two new sheets S are gripped, the two sheets S at the delivery position C are gripped by the third and fourth clamp mechanisms 11 provided in the first transport unit 6. That is, four sheets S are gripped by the clamp mechanism 11 of the first transport unit 6 (FIG. 15d).
Then, the clamp mechanism 12 of the second conveying means 7 is lowered, so that the two sheets S at the delivery position C are released from the gripping state by the clamp mechanism 12. Thereafter, the first conveying means 6 that holds the four sheets S is again moved to the downstream moving end by the first reciprocating drive mechanism 19 (FIG. 15e). As a result, a total of four sheets S are conveyed to the delivery position C. Thereafter, the clamp mechanism 12 of the second conveying means 7 is raised, and these four sheets S are moved to the second clamp mechanism 12. (Fig. 15f).

Next, the first transport unit 6 releases the gripping state of the four sheets S by the clamp mechanism 11, then moves again to the upstream moving end by the first reciprocating drive mechanism 19, and starts a new operation at the cutting position A. At the same time as holding the two sheets S, the third to sixth clamping mechanisms 11 hold the four sheets S at the transfer position C (FIG. 15g). That is, six sheets S are simultaneously gripped by the clamp mechanism 11 of the first transport unit 6, and thereafter, the clamp mechanism 12 of the second transport unit 7 is lowered and is in the delivery position C 4. The sheet S is released from the gripping state by the clamp mechanism 12.
Then, the first transport unit 6 is moved again to the downstream moving end by the first reciprocating drive mechanism 19, so that a total of six sheets S are carried into the delivery position C. Thereafter, the clamp mechanism 12 of the second transport unit 7 is raised, and the six sheets S are gripped by the clamp mechanism 12 of the second transport unit 7 (FIG. 15i).
Thereafter, the gripping state of the six sheets S by the first transport unit 6 is released, and then the first transport unit 6 is moved again to the upstream side moving end by the first reciprocating drive mechanism 19 to reach the cutting position A. The two sheets S and the six sheets S at the delivery position C are gripped by the eight clamp mechanisms 11 provided in the first transport unit 6. That is, the first conveying means 6 has gripped eight sheets S (FIG. 15j). Thereafter, the clamp mechanism 12 of the second transport means 7 is lowered, and the gripping state of the six sheets S at the delivery position C by the clamp mechanism 12 is released (FIG. 15j).

Thereafter, the first conveying means 6 holding the eight sheets S is moved by the first reciprocating drive mechanism 19 to the delivery position C which is the downstream moving end, so that the eight sheets S are delivered at a predetermined pitch P. It is carried into position C (FIG. 15k). Thereafter, the clamping mechanism 12 of the second conveying means 7 is raised, so that the eight sheets S at the delivery position C are simultaneously held by the clamping mechanism 12 of the second conveying means 7 (FIG. 15l).
Thereafter, the first transport unit 6 releases the gripping state of the eight sheets S, moves again to the upstream moving end by the first reciprocating drive mechanism 19, and moves the new two sheets S to the cutting position A. Grip at.
On the other hand, the clamping mechanism 12 is raised, and the eight sheets S at the transfer position C are held by the most upstream side and the eighth clamping mechanism 12 thereafter. The reciprocating drive mechanism 49 moves by 8 pitches to the downstream side moving end (FIGS. 15m and 15n). Thereby, eight sheets S are conveyed to the crimping position B (FIG. 15n). In addition, when the sheet S is supplied to the crimping position B and there are eight bag-like containers 2 for which the crimping of the port 2A is completed, the eight bag-like containers 2 are also clamped. 12 is carried out to the downstream side adjacent to the crimping position B.
Thereafter, the clamp mechanism 12 is lowered to release the gripping state of the eight sheets S and the eight bag-like containers 2, and the second reciprocating drive mechanism 49 causes the clamp mechanism 12 to pass below the sheet S again. Return to the upstream moving end shifted to the upstream side by 8 pitches.
Thereafter, the operations of the first conveying means 6 and the second conveying means 7 described above are repeated.
Even in the second embodiment having such a configuration, the same operations and effects as those of the first embodiment described above can be obtained.
Further, in the second embodiment, the configuration of the transport device 5 can be simplified as compared with the first embodiment because the clamping means 8 in the first embodiment is omitted.

-------------- (Third embodiment)
Next, FIGS. 16a to 16j show a third embodiment of the present invention. In the first and second embodiments described above, the sheet S is transported from the cutting position A to the delivery position C and from the delivery position C to the crimping position B by the transport device 5, and from the crimping position B to the bag-like container 2. The case where the sheet is conveyed downstream is described.
On the other hand, in the third embodiment, in addition to the configuration of the first embodiment, a region on the downstream side adjacent to the crimping position B that is the second article supply / discharge position is set as the second delivery position D. And a fourth clamping means 61 having the same configuration as the first conveying means 6 is added thereto. Then, the two bag-like containers 2 are sequentially carried out from the second delivery position D to the downstream position E adjacent thereto by the fourth clamp means 61.
In other words, in the third embodiment, the second delivery position D is provided between the crimping position B and the downstream position E, and the fourth clamping means 61 as a transport device is provided there. Thereby, it is not necessary to adjust the apparatus with a high processing speed provided at the downstream position E, for example, a seal sticking apparatus (not shown) for attaching a seal to the processing speed of the crimping apparatus 4 with a low processing speed. It is composed.
The configurations of the first conveying means 6, the second conveying means 7 and the clamping means 8 are the same as those in the first embodiment, and the display of the first conveying means 6 and the clamping means 8 is shown in FIGS. 16a to 16j. Omitted. Further, the description of the conveyance process of the eight sheets S to the delivery position C by the first conveyance unit 6 and the operation of gripping and releasing the sheet S at the delivery position C by the clamp unit 8 will be omitted.

The operation of the third embodiment will be described. First, all the eight clamp mechanisms 11 in the fourth clamp means 61 are stopped in the second delivery position D and the clamp mechanism 11 is opened, that is, the fourth clamp means 61 is located at the upstream moving end. In this state, the eight bag-like containers 2 from the crimping position B to the second delivery position are conveyed at a time by the second conveying means 7 (FIGS. 16a and 16b). At the same time, eight sheets S are conveyed from the delivery position C to the crimping position B.
Thereafter, the clamping mechanism 12 of the second conveying means 7 is lowered, the gripping state of the eight bag-like containers 2 at the second delivery position D is released, and the gripping of the eight sheets S at the crimping position B is performed. The state is released (FIG. 16c).
Then, the eight bag-like containers 2 at the second delivery position D are gripped all at once by the clamp mechanism 11 of the fourth clamp means 61 (FIG. 16c).
Thereafter, the second conveying means 7 moves by 8 pitches to the upstream moving end, while the fourth clamping means 61 holding the eight bag-like containers 2 is shifted downstream by 2 pitches P. It moves to the side moving end (FIG. 16d). As a result, the two bag-like containers 2 held by the clamp mechanism 11 at the most downstream side and the adjacent upstream position are conveyed to the downstream position E.
Thereafter, the clamp mechanism 11 of the fourth clamp means 61 releases the gripping state of the eight bag-like containers 2, and thereafter, the fourth clamp means 61 moves upstream by being shifted upstream by 2 pitches. Move to the end (Fig. 16e). As a result, the two bag-like containers 2 are conveyed from the second delivery position D to the downstream position E, and the two bag-like containers 2 conveyed to the downstream position E are further transferred by a conveying means (not shown). It is conveyed downstream. In addition, the six bag-like containers 2 in the second delivery position D are also transported downstream by 2 pitches P in the second delivery position D.
Thereafter, the six bag-like containers 2 in the second delivery position D are gripped by the clamp mechanism 11 on the most downstream side of the fourth clamp means 61 positioned at the upstream moving end and the sixth clamp mechanism 11 thereafter. (FIG. 16e).
Thereafter, the fourth clamping means 61 moves by two pitches from the upstream moving end to the downstream moving end. As a result, the two bag-like containers 2 are conveyed to the downstream position E by the clamp mechanism 11 at the most downstream side and the adjacent upstream position, and at the same time, the four bag-like containers 2 are moved within the second delivery position D. It is conveyed downstream by 2 pitches P (FIG. 16f).
Thereafter, the gripping state of the six bag-like containers by the clamp mechanism 11 of the fourth clamp means 61 is released, so that the two bag-like containers 2 conveyed to the downstream position E are further transferred by a conveying means (not shown). It is conveyed downstream.

Thereafter, the fourth clamping means 61 is moved to the upstream moving end shifted by 2 pitches from the downstream moving end (FIG. 16g). Then, the four bag-like containers 2 at the second delivery position D are gripped by the most downstream clamp mechanism 11 and the fourth clamp mechanism 11 from there.
Thereafter, the fourth clamping means 61 moves by two pitches from the upstream moving end to the downstream moving end. As a result, the two bag-like containers 2 are conveyed to the downstream position E by the clamping mechanism 11 at the most downstream side and the adjacent upstream position, and at the same time, the two bag-like containers 2 are moved within the second delivery position D. It is conveyed downstream by two pitches (FIG. 16h).
Thereafter, the gripping state of the four bag-like containers 2 by the clamp mechanism 11 of the fourth clamp means 61 is released, so that the two bag-like containers 2 conveyed to the downstream position E are transferred by the conveying means (not shown). Further, it is conveyed downstream.

Thereafter, the fourth clamping means 61 is moved to the upstream moving end shifted by 2 pitches P from the downstream moving end (FIG. 16i). Then, the two bag-like containers 2 at the second delivery position D are gripped by the clamp mechanism 11 at the most downstream side and the clamp mechanism 11 at the adjacent upstream position (FIG. 16i).
Thereafter, the fourth clamping means 61 moves by two pitches from the upstream moving end to the downstream moving end. At the same time, the second conveying means 7 holding the new eight bag-like containers 2 at the crimping position B moves by 8 pitches from the upstream moving end to the downstream moving end (FIG. 16j).
Thereby, the two bag-like containers 2 are conveyed to the downstream side position E by the clamping mechanism 11 at the most downstream side of the fourth clamping means 61 and its adjacent position. At the same time, new eight bag-like containers 2 are conveyed to the second delivery position D by the second conveying means 7.
Thereafter, after releasing the gripping state of the bag-like container 2 at the downstream position E, the fourth clamping means 61 moves by two pitches to the position of the upstream moving end. On the other hand, until the fourth clamping means 61 returns to the upstream moving end, the gripping state of the eight bag-like containers 2 by the clamping mechanism 12 of the second conveying means 7 is released and the clamping mechanism 12 is lowered. Thus, at the same time when the above-described fourth clamping means 61 moves to the upstream side movement end, the second transport means 7 also moves from the downstream side movement end to the upstream side movement end.
In this way, new eight bag-like containers 2 are simultaneously carried into the second delivery position D, and these bag-like containers 8 are held together by the clamp mechanism 11 of the fourth clamp means 61.
Thereafter, the operation of the fourth clamping means 61 described above is repeated, so that the bag-like container 2 at the second delivery position D is supplied to the second delivery position sequentially from the most downstream side and two adjacent bag-like containers 2. It is carried out from the position D to the downstream position E.
Even in the third embodiment having such a configuration, the same operations and effects as those of the above-described embodiments can be obtained.
In each of the above-described embodiments, the clamp mechanisms 11 and 12 are configured to grip the sheet S (or the bag-like container 2), but the sheet S (or the bag-like container 2) is clamped by the clamp mechanisms 11 and 12. ) May be adsorbed and held.
In each of the above embodiments, the clamp mechanism 12 of the second transport means 7 is configured to open / close and lift the grip members 48, 48 ′ by the cam mechanism 52. The opening / closing operation and the raising / lowering operation may be performed by separate drive sources.

1 is a schematic layout diagram showing a first embodiment of the present invention. The side view of the principal part of 1st Example shown in FIG. The perspective view of the bag-shaped container manufactured by 1st Example shown in FIG. The figure which shows the process process by the conveying apparatus of 1st Example shown in FIG. The side view of the 1st conveyance means in 1st Example shown in FIG. Sectional drawing of the principal part in alignment with VI-VI of FIG. The perspective view of the principal part of the 1st conveying means shown in FIG. The perspective view which shows the state different from FIG. 7 of the 1st conveying means shown in FIG. The side view of the principal part of the 2nd conveying means in 1st Example shown in FIG. Sectional drawing of the principal part in alignment with the XX line of FIG. The perspective view of the principal part of FIG. The enlarged view of the principal part of FIG. The enlarged view which shows the state different from FIG. 12 of the principal part of FIG. FIG. 13 is an operation process diagram of the clamp mechanism 12 shown in FIG. 12. The figure which shows the process process by the conveying apparatus which is 2nd Example of this invention. The figure which shows the process process by the conveying apparatus which is 3rd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Bag-shaped container (article) S ... Sheet 5 ... Conveyance apparatus (article conveyance apparatus) 12 ... Clamp mechanism 13 ... Fixed frame 52 ... Cam mechanism 45 ... Motor (drive source) 57 ... Air cylinder (drive source)

Claims (4)

A plurality of clamp mechanisms arranged along the conveying direction of the article to detachably hold the article; and a moving means for reciprocating the clamp mechanism to the upstream moving end and the downstream moving end along the conveying direction; An article conveying apparatus comprising a fixed frame having a trajectory of the moving means, and a cam mechanism for opening and closing each of the clamp mechanisms,
An article conveying apparatus, wherein a driving source for the moving means and a driving source for the cam mechanism are provided on a fixed frame. The cam mechanism includes an actuating member that opens and closes the clamp mechanism by vertical movement, a cam follower that is provided on the actuating member and moves the actuating member up and down, and the clamp mechanism at the upstream moving end and the downstream moving end. Fixed between the adjacent lift cams, and a plurality of lift cams that are provided at the stop positions of the respective clamp mechanisms when positioned and that can be engaged with the cam follower of the operating member by the drive source to raise and lower the cam followers. Provided with a plurality of fixed cams that engage with the cam follower of the elevating member,
When the clamp mechanism is stopped at the stop position, the lift cam is engaged with the cam follower by the drive source and lifts it up and down the fixed cam. Further, when each of the cam followers is moved to the upper side of the fixed cam by each of the lift cams, the cam follower is moved to the upper side of the fixed cam when each clamp mechanism is moved in one direction. 2. The article conveying device according to claim 1, wherein when the clamping mechanism is moved in the opposite direction, the lower side of the fixed cam is moved. A spring that constantly biases the operating member upward is provided, and the clamp mechanism is closed by the spring so that an article can be gripped.
The lowering cam has a lower surface as a cam surface, and the cam follower is lifted and lowered in a state of elastic contact with the cam surface of the lifting cam,
The transport device according to claim 2, wherein the fixed cam has a lower surface as a cam surface, and the cam follower is moved in the opposite direction while being in elastic contact with the cam surface of the fixed cam. The clamp mechanism includes a pair of upper and lower gripping members,
The lower gripping member is moved up and down below the article in conjunction with the cam mechanism, while the upper gripping member is lifted and lowered in conjunction with the cam mechanism. And
When the upper gripping member is lowered in conjunction with the cam mechanism, it is positioned below the article,
Further, when it is raised in conjunction with the cam mechanism, it protrudes upward from the article so that the article is held by the upper holding member and the lower holding member. The transport apparatus according to any one of claims 1 to 3, wherein the transport apparatus is characterized.

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