JP2684336B2 - Article transfer device in end seal mechanism of horizontal bag-making filling and packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal bag-making filling and packaging machine which employs a box motion type end seal mechanism, and an article transfer device which is disposed before and after the seal mechanism to transfer packaged articles. Is.

[0002]

2. Description of the Related Art Packaged articles are sequentially fed into a tubular film which is formed into a tubular shape by a bag-making machine and horizontally transferred, and a superposed surface of longitudinal edges of the tubular film filled with the packaged articles. A horizontal bag-filling and packaging machine that obtains a so-called pillow package is widely used in various industrial fields by applying a center seal to the product and then performing end-sealing and cutting before and after sandwiching a tubular film package product. .

The end-sealing mechanism of the packaging machine is provided with a pair of vertically facing seal bodies sandwiching the transport path of the tubular film, and the tubular film is sandwiched by meshing both seal bodies. A type that performs box motion in which horizontal movement is synchronously performed along the transfer direction of the seals, seals are performed, then they are separated from each other and retracted, and again move closer to each other (mesh) to perform horizontal movement is preferably used. To be done. In this case, as a transfer device for the packaged articles from the upstream side to the downstream side of the end seal mechanism, the proximity of both seal bodies
A configuration that allows the separation movement is required.

Conventionally, with respect to this type of transfer device, for example, Japanese Patent Laid-Open Nos. 32-32925 and 2-28200.
A structure disclosed in Japanese Patent No. 3 has been proposed. All of these are equipped with transfer conveyors on the upstream side and the downstream side that sandwich the end seal mechanism, and when the seal bodies that are vertically opposed to each other and sandwich the transport path of the packaged articles are close to each other, the opposite ends of both transport conveyors are opposed to each other. The portions are separated from each other, and the tubular film is allowed to be sandwiched by both seal bodies. Further, when the seal body sandwiching the tubular film horizontally moves from the upstream side to the downstream side in the article transfer direction at the same speed as the film transfer speed,
In synchronization with this, the lengths of the transfer surfaces of both transfer conveyors are displaced. When the seal bodies are separated from each other, the opposed ends of the two transfer conveyors are brought close to each other so that the packaged articles can be delivered and received well.

[0005]

The above-mentioned transfer conveyor comprises one transfer belt or two transfer belts provided on the upstream side and the downstream side of the end seal mechanism, and is upstream of the seal body. The side and downstream transfer belts are run at the same speed as the film transfer speed. That is, the end-sealed / cut and discharged package and the subsequent unpackaged body are transferred at the same speed without any gap, and as a result, the packaged body and the unpackaged body at the time of discharging the packaged body There is a problem that the separation of is not performed properly.

Further, when the tubular film is sealed, it often happens that the film adheres to the sealing surface of the sealing body due to melting of the sealing portion. In this case, as a result of the rear seal part of the preceding package that has been end-sealed / cut by the end seal mechanism being attached to the sealing surface of the seal body and being pulled back to the subsequent unpackaged body side, it passes through the end seal mechanism. It is pointed out that the front end of the subsequent unwrapped product and the rear end of the preceding unwrapped product may come into contact with each other to cause blocking, which causes the packaged article of the subsequent unwrapped product to be caught by the seal body.

Furthermore, in the transfer conveyor,
As a mechanism for moving the opposing ends of the upstream and downstream conveyors close to and away from each other as the pair of seal bodies moves up and down,
A link mechanism is employed. But with the link mechanism,
There are problems that vibration is likely to occur during high-speed operation, the proximity / separation movement of the conveyor becomes unstable, and durability is poor.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems inherent in the transfer device according to the prior art, and is proposed in order to solve the problems preferably. Achieving a reliable separation from the unwrapped body,
In addition, an object of the present invention is to provide an article transfer device capable of suppressing the occurrence of vibration during high speed operation and improving durability.

[0009]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and achieve an intended object, the present invention vertically opposes a transfer path of a cylindrical film filled with a packaged article, and box motion is performed. An end seal mechanism including a pair of seal bodies that perform end sealing / cutting before and after sandwiching a packaged tubular film product, and disposed on the upstream side of the packaged product transfer direction with the position where the seal mechanism is disposed sandwiched. A first transfer conveyor and a second transfer conveyor arranged on the downstream side, and when the pair of seal bodies are separated from each other, opposing ends of the first transfer conveyor and the second transfer conveyor are mutually opposed. In the horizontal bag-making filling and packaging machine, the opposite ends of the first transfer conveyor and the second transfer conveyor are separated from each other when the pair of seal bodies come close to each other so as to mesh with each other. The inveyor includes a first fixed frame and a first moving frame that can move horizontally in the article transfer direction, and a plurality of pulleys arranged on the first fixed frame and a plurality of pulleys arranged on the first moving frame are connected to each other. 1. An endless belt is rotatably wound around the second transfer conveyor, and the second transfer conveyor includes a second fixed frame and a second moving frame that is horizontally movable in the article transfer direction. Of the first transfer conveyor and the second transfer frame of the second transfer conveyor. Means that the pulleys arranged at the ends directed to the seal body are arranged so as to face each other with the end seal mechanism interposed therebetween, and the traveling speed of the first endless belt is defined as the film transfer speed. The traveling speed of the second endless belt is set to be higher than the traveling speed of the first endless belt, and the pair of rollers are provided on the supporting member or both moving frames that move up and down integrally with the seal body. In addition, a cam with which the rollers are slidably engaged is disposed on a support member that moves up and down integrally with both the moving frames or the seal body, and the cam moves in both directions as the seal body moves up and down. It is characterized in that the opposite ends of the frame are set in a shape that moves toward and away from each other.

[0010]

When the pair of seal bodies come close to each other from the position where they are vertically separated from each other with the transfer path of the tubular film sandwiched therebetween, the cam and the roller are engaged with each other by the first moving frame of the first transfer conveyor and the first moving frame. The second moving frame of the two transfer conveyors is separated from each other, the seal body passes between the opposite ends of both conveyors, and the tubular film is clamped. After the two moving frames relatively move horizontally with the horizontal movement of the seal body sandwiching the tubular film, the two moving frames approach each other when the seal bodies are separated from each other, and the first transfer container The packaged article is reliably delivered from the second transfer conveyor to the second transfer conveyor. Since the second endless belt of the second transfer conveyor is set to a speed higher than the traveling speed of the first endless belt of the first transfer conveyor, the package that is end-sealed / cut and transferred by the second endless belt is , Is reliably separated from the subsequent unwrapped body transported by the first endless belt and discharged.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an article transfer device in an end seal mechanism of a horizontal bag-making filling and packaging machine according to the present invention will be described with reference to the accompanying drawings with reference to preferred embodiments.

First, the structure of the end seal mechanism according to the embodiment for performing the box motion will be described. As shown in FIG. 1 and FIG. 4, a pair of lower support plates 12, 1 are spaced apart from each other in the direction intersecting the article transfer direction of the machine frame 10 (left-right direction).
2 are arranged so as to face each other, and a lower seal body 14 is installed at a predetermined position between the support plates 12, 12. Further, the upper support plates 16, 16 are arranged outside the lower support plates 12, 12, and the lower support plates 12, 16 in the upper support plates 16, 16 are disposed.
Between the upper part extending upward from 12, the lower seal body 1
4, an upper seal body 18 is provided so as to face the article transport path 4 with the article transport path interposed therebetween (see FIG. 3). A cutter (not shown) is provided on the upper seal body 18 so as to cut the film when meshing with the lower seal body 14. The upper support plates 16 and 16 and the lower support plates 12 and 12 are connected to the machine frame 10
The drive mechanism 20 disposed in the above-mentioned structure makes circular motions in mutually opposite directions to move the seal bodies 14 and 18 toward and away from each other. The upper seal body 18 and the lower seal body 14 are positioned so that the upper support plates 16 and 16 mesh with each other at the lowest point and before the lower support plates 12 and 12 reach the highest point. As a result, the upper seal body 18 and the lower seal body 14 are meshed in close proximity to each other on the upstream side in the article transfer direction to sandwich the tubular film 22, and in this state, move horizontally for the required distance toward the downstream side. After that, a box motion is performed to separate from each other and return to the upstream position again. In addition, the upper seal body 18 and the lower seal body 14
That is, when a load more than a required amount is applied in a state where the seal bodies 18 and 14 are meshed with each other, the seal bodies 18 and 14 can move in a direction of releasing the load.

A first member is provided on the upstream side of the end seal mechanism 24.
A transfer conveyor 26 is provided, and a first conveyor is provided on the downstream side.
A second transfer conveyor 28 having the same transfer level as the transfer conveyor 26 is provided. And both conveyors 26, 2
The opposing ends of 8 come close to each other in synchronization with the approaching / separating movement (elevating movement) of the sealing bodies 14 and 18 in the sealing mechanism 24.
It is configured to move apart.

(Regarding the first transfer conveyor) The machine frame 10
A pair of support bars 30, 30 are arranged at a predetermined distance in the left-right direction at the upstream end of the first fixed frame by a pair of side plates 32a, 32a arranged on the opposing surfaces of the support bars 30, 30. 32 is configured. A first driven pulley 34 is rotatably supported at an upper portion on the upstream end side between the side plates 32a, 32a, and a drive pulley 3 is provided on a lower portion on the downstream end side.
6 is rotatably supported, and the drive pulley 36 is rotationally driven in a required direction by a first drive motor 38 arranged on one side plate 32a (see FIG. 3). That is, a small-diameter pulley 79 is disposed coaxially with the drive pulley 36 so as to be rotatable integrally, and the small-diameter pulley 79 and the first drive motor 3 are
An endless belt 81 is wound around a large-diameter pulley 80 arranged on the output shaft of No. 8. As the small-diameter pulley 79, the large-diameter pulley 80, and the endless belt 81, toothed ones for preventing slip are recommended.

As shown in FIG. 2, a pair of support bars 40, 40 are provided at the downstream end of the machine frame 10 at a predetermined distance in the left-right direction, and corresponding support bars 30, 30 on the upstream end side. And guide rods 42 are arranged in parallel with each other. Further, the first holding plate 46 is placed and fixed between the first sliders 44, 44 slidably arranged on the guide rods 42, 42 facing the upstream side of the end seal mechanism 24,
On this holding plate 46, a pair of side plates 48a, 48a are arranged at a distance smaller than the distance between the side plates 32a, 32a of the first fixed frame 32 in the left-right direction. The first moving frame 48 including the pair of sides 48a, 48a is configured to horizontally move along the guide rods 42, 42 as the lower seal body 14 moves up and down (FIGS. 6 to 10). reference).

As shown in FIG. 3, the second driven pulley 50 is provided at the upper part on the downstream end side of the first moving frame 48 at the same horizontal level as that of the first driven pulley 34 arranged on the first fixed frame 32. Is rotatably supported. Further, the second driven pulley 50 is provided on the upstream end side of the first moving frame 48.
A third driven pulley 51 and a fourth driven pulley 52 are rotatably supported below and spaced apart from each other in the vertical direction. Then, the first endless belt 53 is movably wound around the drive pulley 36 and the first to fourth driven pulleys 34, 50, 51, 52 to form the first transfer conveyor 26. This first transfer conveyor 26
Is a cylinder in which the first endless belt 53 is driven in the required direction at a speed substantially equal to the film transfer speed by driving the first drive motor 38 to fill the packaged article 54 placed on the belt 53. The film 22 is transferred toward the end seal mechanism 24. The first moving frame 48
A support table 55 is disposed between the side plates 48a, 48a of the first side endless belt 53, and the table 55 supports the first endless belt 53 running between the first driven pulley 34 and the second driven pulley 50 from below. Has become. Also, reference numeral 7
Reference numeral 7 denotes a tension pulley that applies a required tension to the first endless belt 53.

(Regarding the second transfer conveyor) The machine frame 10
A pair of side plates 56a, 56a are disposed on the facing surfaces of the pair of support bars 40, 40 disposed at the downstream ends of the both side plates 56a,
The second fixed frame 56 is constituted by 56a. A first driven pulley 57 is rotatably supported at an upper part on the downstream end side between the side plates 56a, 56a, and a drive pulley 58 is rotatably supported on a lower part at the upstream end side. Is driven to rotate in a required direction by a second drive motor 59 arranged on one side plate 56a. That is, as shown in FIG. 3, a large-diameter pulley 82 is integrally rotatably arranged coaxially with the drive pulley 58, and the large-diameter pulley 82 and the small-diameter pulley 83 arranged on the output shaft of the second drive motor 59 are arranged. An endless belt 84 is wound between them. The arrangement of the small-diameter pulley 79 and the large-diameter pulley 80 of the drive portion in the drive pulley 36 of the first transfer conveyor 26 and the large-diameter pulley 82 and the small-diameter pulley 82 of the drive portion in the drive pulley 58 of the second transfer conveyor 28 are arranged. By reversing the arrangement, as described later, the first transfer conveyor 26
The traveling speed of the second endless belt 66 of the second transfer conveyor 28 is set to be higher than the traveling speed of the first endless belt 53. In addition, a small-diameter pulley 79 and a large-diameter pulley 80
As the endless belt 81, a toothed belt for preventing slip is recommended.

A second holding plate 61 is mounted and fixed between the second sliders 60, 60 slidably arranged at positions on the guide rods 42, 42 facing the downstream side of the end seal mechanism 24. 61, the second fixed frame 5
A pair of side plates 62a, 62a are arranged in the left-right direction at a distance smaller than the distance between the side plates 56a, 56a in FIG. Then, the pair of side plates 62a, 62a
The second moving frame 62 consisting of
4 is configured to move horizontally along the guide rods 42, 42 with the up-and-down movement (see FIGS. 6 to 10).

As shown in FIG. 3, the second driven pulley 63 is provided above the second moving frame 62 on the upstream end side at the same horizontal level as the first driven pulley 57 disposed on the second fixed frame 56. Is rotatably supported. The second driven pulley 63 is provided on the downstream end side of the second moving frame 62.
A third driven pulley 64 and a fourth driven pulley 65 are rotatably supported below and spaced apart from each other in the vertical direction. Then, the second endless belt 66 is wound around the drive pulley 58 and the first to fourth driven pulleys 57, 63, 64, 65 so as to run freely, and thus the second transfer conveyor 28 is configured. This second transfer conveyor 28
Drives the second endless belt 66 in a desired direction by driving the second drive motor 59, thereby transferring the package 67 placed on the belt 66 from the end seal mechanism 24 to the downstream side (FIG. 9). The support table 68 is provided between the side plates 62a, 62a of the second moving frame 62.
And the table 68 controls the second driven pulley 6
The second endless belt 66 running between the third driven pulley 57 and the third driven pulley 57 is supported from below. Further, reference numeral 78 indicates a tension pulley that applies a required tension to the second endless belt 66.

The traveling speed of the second endless belt 66 is
The seal body 1 of the end seal mechanism 24 is set to be higher than the traveling speed of the first endless belt 53.
The preceding packaging body 67, which is end-sealed / cut by 8 and 14, can be reliably separated and discharged from the subsequent unwrapping body 69. In addition, the first transfer conveyor 26
The second driven pulleys 50 and 63 of the second transfer conveyor 28 are set to have a smaller diameter than the other driven pulleys as shown in FIG.
When 0 and 63 are brought close to each other, the level difference between them is reduced so that the packaged article 54 can be delivered smoothly.

(Regarding the moving mechanism of the moving frame) As shown in FIG. 2, a cam plate 7 having a pair of cam grooves 70, 71 formed on the inner surface thereof on the facing surfaces of the lower support plates 12, 12.
2 are arranged respectively. As shown in FIG. 3, the pair of cam grooves 70, 71 formed in each cam plate 72 are formed symmetrically with respect to the center in the article transfer direction, and are inclined so that they approach each other from the bottom to the top. Parts 70a, 71a
And the spacing portions 70b and 71b that are continuous below and the adjacent portions 70c and 71c that are continuous above.
Then, the bracket 7 is attached to the first slider 44 in which the first moving frame 48 is disposed in the first cam groove 70 on the upstream side.
The first roller 74, which is rotatably supported via the shaft 3, is slidably fitted (see FIG. 5), and the second cam groove 71 on the downstream side is attached.
A second roller 76, which is rotatably supported by a bracket 75, is slidably fitted to the second slider 60 on which the second moving frame 62 is disposed. The cam plate 7
As shown in FIG. 6, 2 is a position where the lower seal body 14 (lower support plate 12) faces the lowest point, and the rollers 74 and 76 are positioned so as to face the adjacent portions 70c and 71c of the cam grooves 70 and 71. Has been done.

That is, when the cam plates 72, 72 move up due to the circular movement from the lowermost point of the lower support plates 12, 12 to the uppermost point toward the upstream side, the proximity portion 7 of the cam grooves 70, 71 is increased.
The rollers 74 and 76 located at 0c and 71c are inclined portions 70.
a, 71a to move the sliders 44,
The first moving frame 48 and the second moving frame 62 are separated from each other by 60. As a result, as shown in FIG.
A required gap is formed between the second driven pulley 50 and the second driven pulley 63, and the pair of seal bodies 14 and 18 mesh with each other through this gap (see FIG. 8). Also the lower support plate 1
When the cam plates 72, 72 descend due to the circular movement from the uppermost point of 2, 12 to the lowermost point toward the downstream side, the cam groove 7
Rollers 74 located in the separating portions 70b, 71b of 0, 71,
By moving 76 along the inclined portions 70a and 71a, the first moving frame 48 is moved through the sliders 44 and 60.
And the second moving frame 62 are close to each other. As a result, as shown in FIG. 10, the gap between the second driven pulley 50 and the second driven pulley 63 is eliminated, and the packaged article 54 is reliably delivered from the first transfer conveyor 26 to the second transfer conveyor 28. It is supposed to be done at.

[0023]

Next, the operation of the article transfer device according to the embodiment will be described. As shown in FIG. 6, the pair of seal bodies 14 and 18 are separated from each other and stand by in a state of allowing passage of the tubular film 22. Further, the first roller 74 of the first transfer conveyor 26 and the second roller 76 of the second transfer conveyor 28 are located in the proximity portions 70c, 71c of the first cam groove 70 and the second cam groove 71 of the cam plate 72. , The second driven pulleys 50, 63 are close to each other.

The tubular film 22 filled with the packaged articles 54 supplied to the first transfer conveyor 26 is transferred to the downstream side by the first endless belt 53 running at the same speed as the film transfer speed. The end seal mechanism 24 is driven by the drive mechanism 20 at a required timing, and as shown in FIG. 7, the pair of seal bodies 18 and 14 move closer to each other while moving upstream. As a result, the cam plates 72, 72 arranged on the lower support plates 12, 12 of the lower seal body 14 are provided.
Rises and the rollers 74, 76 move along the inclined portions 70a, 71a of the cam grooves 70, 71 formed in the cam plates 72, whereby the moving frames 48, 62 are separated from each other. As a result of this, the second driven pulleys 50, 63
Are separated from each other and a required gap is created in the facing portion, and the lower seal body 14 extends above the transfer path through this gap to sandwich the tubular film 22 with the upper seal body 18. Then, the pair of seal bodies 18 and 14 horizontally move for a required distance as the tubular film 22 is transferred, whereby end sealing and cutting are performed.

The movement of the moving frames 48 and 62 will be described in more detail. The lower support plate 12 starts a circular motion from the lowest point toward the upstream side, and the cam plate 72 has a portion near the cam grooves 70 and 71. The rollers 74 and 76 located at 70c and 71c move from the adjacent portions 70c and 71c to the inclined portion 70.
a, 71a until moving frame 48, 6
2 moves horizontally to the upstream side without changing the interval. Then, the rollers 74 and 76 make the inclined portion 70 of the cam grooves 70 and 71.
When the movement starts along the a, 71a, the first moving frame 48 and the second moving frame 62 are separated from each other, and a gap is defined between the second driven pulleys 50, 63. Next, with the rollers 74 and 76 positioned in the separated portions 70b and 71b of the cam grooves 70 and 71, the lower support plates 12 and 1
2 continues the circular motion within the required range, the seal body 1
8 and 14 move horizontally while holding the tubular film 22 therebetween, and both moving frames 48 and 62 move to the downstream side while maintaining the gap between the second driven pulleys 50 and 63.

When the pair of seal bodies 14 and 18 move away from each other to release the tubular film 22, the end seal / cut package 67 is operated at a high speed as shown in FIG. By the second transfer conveyor 28 that is present, it is quickly transferred to the downstream side from the position where the end seal mechanism 24 is disposed. In addition, the lower support plates 12, 12 of the lower seal body 14
Moves circularly toward the lowest point
2 descends, the rollers 74 and 76 move into the cam grooves 70 and 7.
1 moving from the separating portions 70b, 71b to the adjacent portions 70c, 71c via the inclined portions 70a, 71a, the moving frame 4
8, 62 move closer to each other. As a result of this, FIG.
As shown in 0, the second driven pulleys 50 and 63 are close to each other, and the gap between the facing portions of the two conveyors 26 and 28 is eliminated, so that the packaged article 54 can be delivered between the conveyors without any trouble. Further, since the second driven pulleys 50, 63 provided at the opposite ends of the conveyors 26, 28 are set to have a small diameter, the step generated when they are brought close to each other is small, and the packaged article 54 can be delivered and received smoothly.

In the embodiment, the cam plate is arranged on the lower support plate on which the lower seal body is arranged, and the roller is arranged on the slider on the conveyor side. The roller may be arranged on the lower support plate. Further, a cam plate is arranged on the upper support plate on which the upper seal body is arranged, the moving frame is separated when the cam plate descends, and the moving frame is brought close to the cam plate when rising. May be. Further, the structure of the cam is not limited to the one in which the roller slides in the cam groove as in the embodiment, and a structure in which the roller slides on the outer periphery of the cam can be adopted, for example. Furthermore, in the embodiment, as the means for setting the speed difference between the first endless belt and the second endless belt, the configuration in which the diameters of the pulleys are made different is adopted, but the speed control of each motor itself can be performed by the pulleys having the same diameter. It is possible. Further, the first endless belt and the second endless belt are not driven by independent motors, respectively, but both endless belts are driven by one motor, and the pulleys and gear ratios are changed. It is also possible to drive the two endless belts at a higher speed than the first endless belt.

[0028]

As described above, according to the article transfer device in the end seal mechanism of the horizontal bag-making filling and packaging machine according to the present invention, the first and second pair of upper and lower seal bodies are separated from each other. Since the opposing pulleys arranged on the transfer conveyor are close to each other, the articles can be reliably and satisfactorily delivered from the first endless belt sandwiching the sealing mechanism to the second endless belt. Further, when the seal bodies are engaged with each other, the opposing pulleys arranged on the first and second transfer conveyors can be separated from each other to a position where they do not contact and interfere with the seal bodies in synchronization with the vertical movement of the seal bodies.

Since the second endless belt arranged on the downstream side of the end seal mechanism is set to run at a high speed with respect to the first endless belt on the upstream side, it follows the end-sealed and cut package. The separation from the unwrapped body can be reliably performed. Further, even if the film adheres to the sealing surface of the sealing body due to melting of the sealing portion, the action of peeling the film from the sealing surface of the sealing body can be enhanced, and the subsequent unwrapped body is the end seal mechanism. It is possible to prevent the articles from interfering with each other to cause blocking when passing through, and it is possible to prevent the packaged article from being caught in the seal body. Further, since the moving frame approaching / separating moving means associated with the vertical movement of the seal body is constituted by a cam and a roller without using a link mechanism, it is possible to suppress the occurrence of vibration even when the seal body is operated at high speed. , And has an advantage that durability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of an article transfer device according to an embodiment of the present invention.

FIG. 2 is a plan view partially showing the article transfer device according to the embodiment in a state where the moving frames are separated from each other.

FIG. 3 is a side view showing a part of the article transporting apparatus according to the embodiment in a state in which the moving frames are close to each other in a vertical section.

FIG. 4 is a rear view showing the first transfer conveyor of the article transfer device according to the embodiment with the moving frames separated from each other.

FIG. 5 is a vertical cross-sectional rear view of essential parts showing an arrangement relationship between a lower support plate, a cam plate, and rollers.

FIG. 6 is an operation explanatory view of the article transfer device, showing a state where a pair of moving frames are close to each other.

FIG. 7 is an operation explanatory view of the article transfer device, showing a state in which a pair of moving frames are separated while moving upstream.

FIG. 8 is an operation explanatory view of the article transfer device, showing a state in which the pair of moving frames move to the downstream side in a state of being separated from each other.

FIG. 9 is an operation explanatory view of the article transfer device, showing a state in which a pair of moving frames starts approaching each other.

FIG. 10 is an operation explanatory view of the article transfer device, showing a state where the pair of moving frames have returned to the initial close positions.

[Explanation of symbols]

12 Lower Support Plate 14 Lower Seal Body 18 Upper Seal Body 22 Cylindrical Film 24 End Seal Mechanism 26 First Transfer Conveyor 28 Second Transfer Conveyor 32 First Fixed Frame 34 First Driven Pulley 36 Drive Pulley 38 First Drive Motor 48 1st moving frame 50 2nd driven pulley 51 3rd driven pulley 52 4th driven pulley 53 1st endless belt 54 packaged goods 56 2nd fixed frame 57 1st driven pulley 58 drive pulley 59 2nd drive motor 62 2nd moving frame 63 2nd driven pulley 64 3rd driven pulley 65 4th driven pulley 66 2nd endless belt 72 Cam plate 74 1st roller 76 2nd roller

Claims (2)

(57) [Claims] 1. A tubular film filled with a packaged article (54).
A pair of seal bodies (14, 18) that face each other vertically with a transport path of (22) interposed therebetween and perform box motion to perform end seal / cut before and after sandwiching the packaged article (54) of the tubular film (22).
And an end seal mechanism (24) provided with the first transfer conveyor (26) arranged on the upstream side in the transfer direction of the packaged article (54) and the downstream side with the arrangement position of the seal mechanism (24) interposed therebetween. A second transfer conveyor (28) provided, and the pair of seal bodies (1
When the 4, 18) are separated from each other, the opposing ends of the first transfer conveyor (26) and the second transfer conveyor (28) are brought close to each other, and the pair of seal bodies (14, 18) mesh with each other. In a horizontal bag-making filling and packaging machine in which opposing ends of the first transfer conveyor (26) and the second transfer conveyor (28) are separated from each other when they are as close as possible, the first transfer conveyor (26) is The first fixed frame (32) and the first moving frame (4
8), a plurality of pulleys (34, 36) arranged on the first fixed frame (32) and a plurality of pulleys (50, 51, 52) arranged on the first moving frame (48) 1. The endless belt (53) is rotatably wound around the second transfer conveyor (28), and the second transfer conveyor (28) includes a second fixed frame (56) and a second moving frame (6) that can move horizontally in the article transfer direction.
2), a plurality of pulleys (57, 58) arranged on the second fixed frame (56) and a plurality of pulleys (63, 64, 65) arranged on the second moving frame (62) 2 The endless belt (66) is rotatably wrapped around the first transfer frame (48) of the first transfer conveyor (26) and the second transfer frame (62) of the second transfer conveyor (28). , The pulleys (50, 6) arranged at the ends directed to the seal bodies (14, 18)
3) are arranged so as to face each other across the end seal mechanism (24), the traveling speed of the first endless belt (53) is set to be substantially the same as the film transfer speed, and the traveling of the second endless belt (66) is performed. The speed is set to be higher than the traveling speed of the first endless belt (53), and the pair of rollers (74) is mounted on the support member (12) or both moving frames (48, 62) that move up and down integrally with the seal body (14). , 76) are provided, and each of the rollers is attached to a support member (12) that moves up and down integrally with the moving frames (48, 62) or the seal body (14).
A cam (72) with which (74, 76) slidably engages is disposed, and the cam (72) faces the moving frames (48, 62) as the seal body (14) moves up and down. An article transfer device in an end seal mechanism of a horizontal bag-making filling and packaging machine, characterized in that ends thereof are set in a shape that moves toward and away from each other. 2. The end of a horizontal bag-making filling and packaging machine according to claim 1, wherein the first endless belt (53) and the second endless belt (66) are respectively driven by independent drive motors (38, 59). Article transfer device in the seal mechanism.