JP2003291924A - End sealing apparatus in horizontal type bag-making and filling machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the compaction of an end sealing apparatus by shortening an article transfer region. <P>SOLUTION: An extensible and retractable bed 31 disposed on the upstream side of a pair of sealing members 19 and 22 is provided with a belt 35, of which both the open ends are held at a predetermined position in a frame 16 with the aid of locking members 33 and 34. The belt 35 is stretched over a support roller 39 capable of moving back and forth along the direction in which a film is transferred, and the horizontal part of the belt 35, which is positioned in the distance from the upper side locking member 33 to the support roller 39, is used as an article support face. In response to the operation of the first sealing member 19, the support roller 39 is moved back and forth along a film- transferring direction by an interlocking means consisting of a first cam plate 49 and a first cam groove 49a. With this arrangement, the article support face is extended and retracted. Tension is always imparted to the belt 35 by means of tension springs 44 and 44, and even when the article support face is extended or retracted, it is always kept in a tense state. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end seal device for a horizontal bag-making filling machine, and more specifically, a seal for end-sealing an object to be packaged supplied into a tubular film. The present invention relates to an end seal device including a delivery member that delivers a body toward an end seal position.

[0002]

2. Description of the Related Art Conventionally, as for this type of end seal device, a structure disclosed in Japanese Patent No. 2684336 filed by the present applicant has been proposed. In this end seal device, the upstream side and the downstream side of the end seal mechanism are provided with transfer conveyors that are driven and driven by independent drive sources, respectively, and are vertically arranged to sandwich the transfer path of the tubular film (the object to be packaged). When the sealing bodies come close to each other, the opposite ends of the two transfer conveyors are separated from each other to allow the sealing films to sandwich the tubular film. Also, when the seal body holding the tubular film moves horizontally from the upstream side to the downstream side in the article transfer direction at the same speed as the film transfer speed, the length of the transfer surface of both transfer conveyors is synchronized with this. Is changing. 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 articles to be packaged can be delivered favorably.

[0003]

However, a transfer conveyor equipped with an endless belt that is driven by a motor as a drive source is provided on the upstream side of the end seal mechanism, and the article transfer area in the end seal device is configured due to its structure. It is pointed out that the device becomes longer and the device becomes larger.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems inherent in the above-mentioned conventional techniques, and is proposed in order to solve this problem. It is an object of the present invention to provide an end seal device for a horizontal bag-making and filling machine that can achieve the above.

[0005]

In order to overcome the above-mentioned problems and achieve the intended purpose, the end seal device of the horizontal bag-making and filling machine according to the present invention is arranged downstream of the center seal mechanism. A pair of seal bodies, which are opposed to each other with a transport path of the tubular film interposed therebetween and which end-seal before and after sandwiching the object to be packaged supplied in the tubular film, are connected to the downstream side of the center seal mechanism, Each of the open ends is held in a fixed position, and the article to be packaged supplied into the tubular film is supported from below by the article support surface extending in the horizontal direction between both open ends to support the sealed body from below. A delivery member that delivers to the end seal position, a support member that supports the delivery end portion of the delivery member, and that horizontally moves by the interlocking means in accordance with the operation of the seal body to expand and contract the article support surface; Of the support member It is disposed below the installation position, characterized in that it comprises constantly a tension maintaining member for maintaining the tension of said transfer member.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a preferred embodiment of the end seal device for a horizontal bag-making and filling machine according to the present invention will be described.
The following is a description with reference to the accompanying drawings.

1 to 3 show the entire structure of an end seal device of a horizontal bag-making and filling machine according to an embodiment of the present invention. An upstream side of the end seal device 10 is not shown. Cylindrical film 1 formed into a tubular shape by bag means
The center seal mechanism 13 in which the heating rollers 12 and 12 for sandwiching the overlapping edge portion in the longitudinal direction of 1 and rotating the cylindrical film 11 to continuously perform center seal on the tubular film 11 is disposed is It is arranged below the transfer path of the film 11.

Above the center seal mechanism 13, the transfer bed 1 for supporting the bottom surface of the article to be packed 14 supplied into the tubular film 11 from below through the film.
5 is arranged horizontally, and the overlapping end edge portion in the longitudinal direction of the tubular film 11 extending downward from the slit formed in the bed 15 along the film transfer direction is the heating roller 1.
It is designed to be sandwiched between 2 and 12. That is, the article to be packaged 14 supplied into the tubular film 11 is transferred to the downstream side along with the transfer of the tubular film 11 while being placed on the transport bed 15.

As shown in FIGS. 2 and 3, a pair of support members 17, which are spaced apart from each other in the width direction (left-right direction) intersecting the film transfer direction of the machine frame 16 in the end seal device 10, is provided.
17 are arranged to face each other so as to be movable up and down.
A first seal body 19 is arranged above the first holder 18 which is erected on 7, 7 in an upward posture in which the sealing surface is directed to the transfer path of the tubular film 11. Further, a slide shaft 20 having a predetermined length is inserted into and supported by each support 17 so as to be vertically slidable.
A second holder 21 is movably installed between the upper ends of both slide shafts 20, 20 extending upward from 17 and facing above the transfer path, and the lower side of the second holder 21 is In addition, the second seal body 22 is disposed with the sealing surface facing downward toward the transfer path. The second
The holder 21 of the shaft 2 is always supported by the compression springs 23, 23 wound around the slide shafts 20, 20.
It is adapted to be urged downward so as to come into contact with the stoppers 24, 24 provided at 0 and 20. This compression spring 2
3 and 23 are tubular films 1 formed by both sealing bodies 19 and 22.
It functions to keep the clamping force of 1 substantially constant. Further, a cutter 25 is arranged on the second seal body 22, and is configured to cut the tubular film 11 when it comes into contact with the first seal body 19.

The lower ends of a pair of slide shafts 20 and 20 extending downward from the support members 17 and 17 are connected by a connecting member 26, and the connecting member 26 and the supporting members 17 and 17 are not shown. It is linked to the drive mechanism. The drive mechanism moves the seal bodies 19 and 22 closer to and away from each other, and the first seal body 19 and the second seal body 22 come close to each other on the upstream side in the film transfer direction. The tubular film 11 is sandwiched, and in this state, the tubular films 11 are horizontally moved toward the downstream side by a required distance, and then separated from each other and returned to the upstream position again.

A holding member 27 is provided on each of the facing surfaces of the two support members 17, 17 and the first roller 28 is rotatably pivoted at a position facing the upstream side of the support member 17 in each holding member 27. It is supported and it is located at a position facing the downstream side.
Roller 29 is rotatably supported. Both rollers 28 and 29 are rotatably engaged along cam grooves 49a and 50a of cam plates 49 and 50, which will be described later, and the opposite ends of the telescopic bed 31 and the transfer conveyor 32, which will be described later, are The first seal member 19 is configured to move forward and backward along the film transfer direction in response to the reciprocating motion of the first seal member 19 in the film transfer direction and the up-and-down motion, and to move toward and away from each other.

Between the center seal mechanism 13 and the positions where the first and second seal bodies 19 and 22 are arranged, the article to be packaged 14 supplied into the tubular film 11 is supported from below and both sides are supported. An extendable bed 31 is arranged to be delivered to the end seal position by the seal bodies 19 and 22. A transfer conveyor 32 for transferring the end-sealed and cut packages toward the downstream side is provided at the downstream side of the positions where both the seal bodies 19 and 22 are arranged, and the transfer level is the same as the article support surface of the telescopic bed 31. It is arranged.

The telescopic bed 31 is composed of the both seal bodies 1.
A pair of locking members 33, 34 extending in the width direction are arranged parallel to each other on the machine frame 16 below the transfer path of the tubular film 11 on the upstream side of the position where 9 and 22 are arranged. Corresponding open ends of a belt 35 made of a sheet-like flexible member as a delivery member are detachably held at fixed positions on both locking members 33 and 34, respectively. In the embodiment, the locking members 33, 34 installed on the machine frame 16 are installed.
In contrast, the loop 35 formed at the open end of the belt 35
a, 35a. This belt 35
As the friction resistance with the film used is small,
For example, a base material containing a fluororesin is preferable,
Other materials may be used. It is sufficient that at least the article supporting surface has a small frictional resistance with the tubular film 11, and various low resistances such as attaching a low friction member to the article supporting surface or applying an appropriate coating thereto. It is possible to adopt a configuration that takes measures against friction.

The tubular film 11 is provided on the machine frame 16.
Guide rods 36 extending in the film transfer direction over the upstream and downstream sides of the seal bodies 19 and 22 are arranged in parallel on both sides of the transfer path. Sliders 37, 37 are slidably disposed on the members 36, 36. As shown in FIG. 3, a support roller 39 as a support member constituting a telescopic bed 31 is rotatably installed between the portions of the sliders 37, 37 facing the upstream side of the seal members 19, 22, and A belt 35 extending from both open ends held by the locking members 33 and 34 toward the downstream side is wound around the support roller 39, and the delivery end points toward the seal bodies 19 and 22 of the telescopic bed 31. Make up part. The support roller 39 is configured to horizontally move along the guide rods 36, 36 as the first seal body 19 moves up and down via interlocking means described later.

The upper locking member 33 and the support roller 39
A guide member 40, which is disposed in the machine frame 16 and is formed by bending a flat plate into a predetermined shape, faces between and. That is, in this guide member 40, an inclined guide portion 40b bent obliquely upward toward the downstream side is formed at the upper end of the vertical mounting portion 40a arranged in the machine frame 16, and The upper end of the guide portion 40b is bent so as to extend horizontally toward the downstream side to form a horizontal guide portion 40c, and one open end portion held by the locking member 33 is connected to the support roller 39. As shown in FIG. 1, the belt 35 extending toward the both guide portions 40b, 40c of the guide member 40 is provided.
It is configured to guide horizontally by following the upper surface of the. Then, from the guide member 40 to the support roller 39
The horizontal portion of the belt 35 up to this point constitutes the article support surface of the article to be packaged 14, and the article support surface is expanded and contracted by the horizontal movement of the support roller 39 along the film transfer direction. The article support surface is set at substantially the same level as the article mounting surface of the transfer bed 15, and the article 14 is configured to be smoothly transferred from the transfer bed 15 to the article support surface.

A guide roller 41 is rotatably arranged on the lower surface of the guide member 40, and is wound around the support roller 39 and then guided below the article support surface. The belt 35 is wound around the guide roller 41. Further, a belt 35, which is located between the guide roller 41 and the lower locking member 34 below the position where the support roller 39 is disposed, is in the middle of a lower guide and is tensioned so as to be freely rotatably fitted onto the support shaft 42. It is wound around a tension roller 43 as a maintenance member. As shown in FIG. 2, the other ends of the tension springs 44, one end of which is hooked at the lower position of the machine frame 16, are respectively attached to both ends of the support shaft 42 which project from the tension roller 43 in the axial direction. The tension roller 43 is hooked and pulled downward by a pair of tension springs 44, 44, and as the article support surface expands and contracts, the support roller 39 moves in the film transfer direction. The belt 35 is configured to maintain tension without sagging when being horizontally moved along the belt 35 and to always apply a predetermined tension to the belt 35.

As shown in FIG. 3, the transfer conveyor 32 is provided in a pair at a predetermined distance in the width direction on the upper part of the machine frame 16 on the downstream side of the arrangement position of the both seal bodies 19 and 22. The fixed frame 45 formed of the side plate of FIG. Further, inside the fixed frame 45, there is provided a movable frame 46 composed of a pair of side plates facing each other spaced apart in the width direction at intervals smaller than the spacing of the side plates.
5 is arranged so as to be horizontally movable in the film transfer direction. Further, a plurality of pulleys 4 are attached to the fixed frame 45.
5a is rotatably and pivotally supported, and a moving frame 46
In addition, a plurality of pulleys 46a are rotatably supported, and an endless belt 47 is wound between these pulleys 45a and 46a so that the pulleys 45a and 46a can travel. A pulley 45a arranged at a predetermined position on the fixed frame 45
A motor 48 arranged below the frame 45 is connected to the motor, and the endless belt 47 travels in the required direction by rotating the pulley 45a in the required direction by the motor 48.

The traveling speed of the endless belt 47 is set to be higher than the transfer speed of the tubular film 11, so that the articles 14 to be packaged in the tubular film 11 can be smoothly transferred on the telescopic bed 31. Both seals 1
It is configured so that the preceding package body, which is end-sealed / cut by 9 and 22, can be reliably separated and discharged.

As shown in FIG. 1 or 3, each slider 37 is provided with a first cam plate 49 having a first cam groove 49a formed at a position facing the upstream side of the support body 17, respectively. . Second cam plates 50 having second cam grooves 50a are provided on the left and right sides of the transfer conveyor 32 in the vicinity of the upstream end of the moving frame 46 on the downstream side of the support body 17, respectively. The first cam plates 4 located at the front and rear in the film transfer direction with the first seal body 19 interposed therebetween.
The first cam groove 49a and the second cam groove 50a formed on the second cam plate 50 and the second cam plate 50 are formed symmetrically as shown in FIG. Then, the first roller 28 pivotally supported by the holding member 27 arranged on the support member 17 is rotatably engaged with the first cam groove 49a, and the first roller 28 is engaged with the second cam groove 50a. Is also rotatably engaged with the second roller 29, which is also pivotally supported by the holding member 27. In the embodiment, the first cam plate 49 and the first cam groove 49a constitute an interlocking unit that horizontally moves the support roller 39 in association with the operation of the seal body 19.

The first and second cam grooves 49a and 50a
The shape of the sealing body 1 of the transfer conveyor 32 is the delivery end portion of the telescopic bed 31 which faces the sealing bodies 19 and 22.
The receiving start end portions which are directed to 9 and 22 are set so as to move forward and backward along the film transfer direction and move toward and away from each other in accordance with the operation of the first seal body 19.
That is, in the case where the first seal body 19 makes a circular motion from the lowermost point toward the upstream side to the uppermost point,
When the holding member 27 rises together with the first seal body 19, the rollers 28 and 29 move along the cam grooves 49a and 50a, so that the support roller 39 and the moving frame 46 are separated from each other. As a result, as shown in FIG.
A required gap is formed between the end portion and the start portion of the telescopic bed 31 and the transfer conveyor 32, which face each other, and the pair of seal bodies 19 and 22 sandwich the tubular film 11 through the gap. Further, when the holding member 27 descends along with the circular movement from the uppermost point of the first seal body 19 toward the downstream side to the lowermost point, the rollers 28, 2 move along the cam grooves 49a, 50a.
The movement of 9 brings the support roller 39 and the moving frame 46 close to each other. As a result, as shown in FIG. 1, the gap between the opposing end and start ends of the telescopic bed 31 and the transfer conveyor 32 is reduced, and the telescopic bed 3
It is ensured that the article to be packaged 14 is delivered from 1 to the transfer conveyor 32.

[0021]

Next, the operation of the end seal device of the horizontal bag-making filling and packaging machine according to the embodiment will be described. As shown in FIG. 1, the pair of seal bodies 19 and 22 are separated from each other and stand by in a state where the tubular film 11 is allowed to pass therethrough. Further, the delivery end of the telescopic bed 31 and the delivery start of the transfer conveyor 32 are close to each other.

The article to be packaged 14 supplied into the tubular film 11 along with the transport of the tubular film 11 is transported to the downstream side while being placed on the transport bed 15. Further, a center seal is applied to the longitudinal overlapping edge portion of the tubular film 11 extending downward from the transport bed 15 by the heating rollers 12 and 12.

The article to be packaged 14 is transferred from the transfer bed 15 to the article supporting surface of the telescopic bed 31, and is continuously transferred to the downstream side together with the tubular film 11. The pair of seal bodies 19 and 22 are driven by the drive mechanism at a required timing, and as shown in FIG. 4, move close to each other while moving upstream according to the movement trajectory of the circular motion. This allows
The holding member 27 that moves integrally with the first sealing body 19 rises, and the roller 2 disposed on the holding member 27 is moved.
8 and 29 are cam grooves 49 formed in the cam plates 49 and 50.
By moving a and 50a, the expansion bed 31
Support roller 39 and moving frame 4 of transfer conveyor 32
6 and 6 move away from each other and move back and forth in the transfer direction so as to have a predetermined positional relationship according to the movement locus of the circular movement. As a result, a required gap is created between the end portion and the start portion of the telescopic bed 31 and the transfer conveyor 32 which face each other, and the first seal body 19 extends above the transfer path through this gap. The tubular film 11 is sandwiched between the second seal body 22 and the second seal body 22. At this time, in the telescopic bed 31, a predetermined tension is constantly applied by the tension springs 44, 44 so as to maintain the tension of the belt 35, so that the support roller 39 moves to support the guide member 40. Even if the article support surface extending in the horizontal direction between the rollers 39 contracts, the article support surface can be held in a tensioned state, and the article 14 to be packaged can be smoothly transferred.

The pair of seal members 19 and 22 holding the tubular film 11 on the upstream side horizontally move a required distance to the downstream side as the tubular film 11 is transferred, whereby end sealing / cutting is performed. Is given. While the seal bodies 19 and 22 horizontally move to the downstream side, the seal bodies 19 and 22 may interfere with each other between the end portion and the start end portion of the telescopic bed 31 and the transfer conveyor 32 which face each other. Instead, the support roller 39 and the moving frame 46 horizontally move to the downstream side while maintaining the required gap.

When the pair of seal members 19 and 22 move away from each other to release the tubular film 11, the end seal / cut package is sealed by the transfer conveyor 32 operating at high speed. It is quickly transferred to the downstream side from the position where the bodies 19 and 22 are arranged. Further, when the holding member 27 descends due to the circular movement of the first seal body 19 toward the lowest point, the rollers 28 and 29 move along the cam grooves 49a and 50a, so that the support roller 27 is moved. 39 and the moving frame 46 move closer to each other. As a result, as shown in FIG. 1, the gap between the opposing end and start ends of the telescopic bed 31 and the transfer conveyor 32 decreases, and the article supporting surface of the telescopic bed 31 exceeds the end seal position and is covered. The package 14 is delivered to the transfer conveyor 32 without any trouble. Also in this case, since the tension roller 43 constantly applies a predetermined tension to maintain the tension of the belt 35 in the telescopic bed 31,
Even if the article support surface extends due to the movement of the support roller 39, the article support surface can be held in a tensioned state, and smooth delivery of the article to be packaged 14 is achieved.

As described above, the pair of seal members 19,
Since the telescopic bed 31 forming the article transfer area on the upstream side of 22 does not use a motor or the like, it is possible to shorten the article transfer area and make the end seal device 10 as a whole compact. Installation space can also be reduced. In addition, since the distance from the center seal mechanism 13 to the end seal position can be shortened, the transfer distance of the article to be packaged 14 supplied into the tubular film 11 to the end seal position becomes short, and in the tubular film 11, It is possible to suppress the positional deviation of the article 14 to be packaged.
In addition, by shortening the length from the bag-making means to the end seal position, it is possible to reduce the film feed amount for the initial setting work of the packaging film accompanying the replacement of the packaging film, and the packaging material generated at that time. Can be reduced.
Since the structure of the article transfer unit in the end seal device 10 can be simplified, the device cost can be reduced.

[0027]

[Modification] The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately adopted. 1. The guide roller 41 and the tension roller 43 around which the belt 35 of the telescopic bed 31 is wound and guided are configured to freely rotate, but other supporting members such as a non-rotating bar can be adopted, and the guide is also provided. The roller 41 can be omitted. 2. The amount of expansion and contraction of the article support surface of the telescopic bed 31 does not have to be set to be the same as the amount of movement of the receiving start end of the transfer conveyor 32, but the gap between these opposing ends is relatively reduced. It should be set to do. Further, the transfer conveyor 32 may not be expanded or contracted. In this case, the delivery end portion of the telescopic bed 31 may be moved to a position close to the delivery start end portion of the transfer conveyor 32 to reduce the gap when the seal bodies 19 and 22 are separated. . 3. The structure for moving the support member (support roller 39) back and forth may be a structure in which the roller rolls with respect to the slide guide, or another system. 4. The holding of the open end of the belt 35 with respect to the locking members 33 and 34 may be performed by hooking the left and right open ends of the belt 35 on two left and right locking members.
Further, a configuration may be adopted in which the open end of the belt 35 is fixed to the locking members 33 and 34 with bolts or the like. Alternatively, both open ends of the belt 35 may be held at the same holding position. 5. In the tension roller 43, the tension spring 44 may be replaced by a weight, or a tension maintaining member such as a tension roller may be formed of a material having a large mass to apply a predetermined tension to the belt 35. Further, the tension applying direction in that case is not limited to the downward direction, and may be any direction such as front and rear of the film transport direction. Further, a structure in which the tension of the belt 35 can be maintained by integrally moving the tension maintaining member around which the belt 35 is wound and guided by the movement of the supporting member can be adopted. 6. The guide member 40 moves from the locking member 33 to the support roller 3
It is sufficient that the belt 35 extending toward 9 can be guided in the horizontal direction, and the inclined guide portion 40b and the horizontal guide portion 40 can be used.
It is possible to adopt a configuration in which a roller orthogonal to the transfer direction is arranged at a bent portion with respect to c (the base point for guiding the belt 35 in the horizontal direction), or a plurality of rollers are arranged in parallel in the horizontal guide portion 40c. 7. The delivery member includes a plurality of bars arranged in parallel at right angles to the transfer direction, a net-shaped member, and the like. The article supporting surface is extendable and supports the article to be packaged 14 in the tubular film 11 from below. Various possible configurations can be adopted. 8. The interlocking means for expanding and contracting the article supporting surface of the belt 35 by the operation of the seal bodies 19, 22 is provided with the cam plates 49, 50 on the side of the first seal body 19 and the supporting roller (supporting member) 39 and moving. Various methods such as a configuration in which the rollers 28 and 29 are arranged on the frame 46, a support roller (supporting member) 39, and a link mechanism that connects the moving frame 46 to the seal bodies 19 and 22 side via a connecting rod can be adopted. 9. For the pair of seal bodies 19 and 22, a system in which the pair of seal bodies 19 and 22 move oppositely at a fixed position can also be adopted.

[0028]

As described above, according to the end seal device of the horizontal bag making and filling machine according to the first aspect of the present invention, the article supporting surface of the delivery member holding both open ends is expanded and contracted. Since the package is delivered to the end seal position, the article transfer area on the upstream side of the end seal position can be shortened, and the end seal device can be made compact. As a result, the packaging machine itself can be downsized and its installation space can be reduced. Furthermore, it is possible to reduce the loss of the packaging material that occurs when the packaging film is replaced.

In the end seal device according to the second aspect of the present invention, the end portions of the delivery member and the transfer conveyor, which are arranged with the seal body sandwiched therebetween, are moved toward and away from each other. The expansion / contraction operation time can be set shorter than in the case where only the delivery member is expanded / contracted, and it is possible to cope with high speed. Further, in the end seal device according to the third aspect of the present invention, since the support member is configured to move integrally with the seal body along the film transfer direction, it is possible to perform end seal while transferring the tubular film, thereby improving processing capability. Can be improved.

In the end seal device according to the fourth aspect, since the delivery member is the sheet-like flexible member, the article supporting surface can be smoothly expanded and contracted, and good transfer of the packaged object can be achieved. it can. Further, in the end seal device according to the fifth aspect, since the article supporting surface of the flexible member is configured to have a small frictional resistance with the tubular film, it is possible to package the flexible member that does not run on the flexible member. The movement of goods becomes smoother.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an end seal device of a horizontal bag-making filling machine according to an embodiment of the present invention with upper and lower seal bodies separated from each other.

FIG. 2 is a schematic side view showing a partially broken end seal device according to an embodiment.

FIG. 3 is a schematic plan view showing a partially broken end seal device according to the embodiment.

FIG. 4 is a schematic front view showing the end seal device according to the embodiment with upper and lower seal bodies in contact with each other.

[Explanation of symbols]

11 tubular film 13 Center seal mechanism 14 Items to be packaged 19 First seal body 22 Second seal body 32 transfer conveyor 35 Belt (delivery member, sheet-shaped flexible member) 36 Guide rod 37 Slider 39 Support roller (support member) 41 Guide roller 43 Tension roller (tension maintaining member) 49 1st cam plate (interlocking device) 49a 1st cam groove (interlocking means)

Claims (5)

[Claims] 1. An article to be packaged which is disposed on the downstream side of the center seal mechanism (13) and faces the tubular film (11) with a transfer path interposed therebetween and is supplied into the tubular film (11). 14) A pair of seal bodies (19, 22) that provide end seals before and after sandwiching the center seal mechanism (13) are connected to the downstream side of the center seal mechanism (13). An end seal by the seal body (19, 22) by supporting the article to be packaged (14) supplied into the tubular film (11) from below with an article supporting surface extending horizontally between the end portions. A delivery member (35) for delivery to a position and a delivery end portion of the delivery member (35) are supported and horizontally moved by the interlocking means (49, 49a) with the operation of the seal body (19, 22). Support member (3
9), and a tension maintaining member (43) arranged below the position where the supporting member (39) is arranged to constantly maintain the tension of the delivery member (35).
An end seal device for a horizontal bag-making and filling machine, comprising: 2. A transfer conveyor (32) is arranged downstream of a position where the seal bodies (19, 22) are arranged, and the transfer member (3) is provided.
2. The end seal device for a horizontal bag-making and filling machine according to claim 1, wherein the delivery end portion in 5) and the delivery start end in the transfer conveyor (32) are configured to move toward and away from each other. 3. The two sealing bodies (19, 22) sandwich the tubular film (11) in close proximity to each other, and in this sandwiched state, move a required distance toward the downstream side and then separate from each other. The seal body (19, 22) configured to return to the upstream position
The horizontal bag-making filling according to claim 1 or 2, wherein the support member (39) is configured to move integrally with the sealing body (19, 22) along the film transfer direction when the film is moved in the film transfer direction. Machine end seal device. 4. The sheet-shaped flexible member (3)
5) A support roller which is constructed by a pair of sliders (37, 37) reciprocating in the horizontal direction and which is composed of 5).
(39), the sheet-shaped flexible member (35) is wound around the support roller (39) and then guided downward, and the guide roller (41) and the sheet-shaped flexible member (35) are guided during the lower guide. The flexible roller (35) is wound around and guided by a tension roller (43) that applies a predetermined tension to each of the rollers (39, 41, 4).
Each of 3) is configured to be freely rotatable.
Alternatively, the end seal device of the horizontal bag-making filling machine according to item 3. 5. The end of a horizontal bag-making and filling machine according to claim 4, wherein the article supporting surface of the flexible member (35) is set to have a small frictional resistance with the tubular film (11). Sealing device.