JP3780452B2 - End seal device for horizontal bag making and filling machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an end seal device in a horizontal type bag making and filling machine, and more specifically, a cylindrical film by a pair of sealing members that move in the direction of transfer along with the transfer of the cylindrical film while facing and moving away from each other. The present invention relates to an end seal device that performs end seal by clamping from both sides.
[0002]
[Prior art]
The horizontal bag making and filling machine sequentially supplies articles into a film that is horizontally transferred while being formed from a strip shape into a cylindrical shape by a bag making machine, and performs a center seal on the overlapping surface of the side edges of the film, A so-called pillow package can be manufactured by performing end sealing and cutting between adjacent articles in a cylindrical film.
[0003]
An end seal device for end sealing and cutting disposed in the horizontal bag making and filling machine is opposed to both sides sandwiching the transfer path of the tubular film as disclosed in, for example, Japanese Patent Laid-Open No. 7-267203. Two seal sets in which a seal member is arranged between a pair of support plates are arranged so that each seal member faces up and down across the transfer path, and the two seal members are kept facing each other. A configuration is adopted in which the circular motion is performed as it is. And in the state which clamped the cylindrical film by making both sealing members contact, both the sealing members are moved synchronously along the transfer direction of the cylindrical film, and end sealing is performed and the film is cut. After that, they are configured to perform so-called box motion, in which they move backward and away from each other, and repeat the motion of moving in contact with each other again.
[0004]
[Problems to be solved by the invention]
In the horizontal bag making and filling machine, a transfer mechanism such as a belt conveyor is provided on the upstream side and the downstream side in the film transfer direction of the end seal device to transfer articles and a tubular film to the seal device, The cylindrical film (packaging body) cut by the end seal is carried out. Further, the horizontal bag making and filling machine is configured such that an operator is located on one side of the film transfer path and performs its operation and maintenance. However, in the above-described end seal device, it is pointed out that maintenance such as cleaning for the end seal device including the transfer mechanism is difficult to perform because there is one of the pair of support plates on the side where the operator is located.
[0005]
OBJECT OF THE INVENTION
In view of the above-mentioned problems inherent in the end seal device according to the prior art, the present invention has been proposed to suitably solve this problem, and in a horizontal bag making and filling machine that can make maintenance easy or unnecessary. An object is to provide an end seal device.
[0006]
[Means for Solving the Problems]
  In order to overcome the above problems and achieve the intended purpose, the present invention provides:
  A pair of sealing members disposed opposite to each other across the transfer path of the cylindrical film filled with the article, and moved in the transfer direction along with the transfer of the cylindrical film, and opposed to and separated from each other. In an end seal device in a horizontal bag making and filling machine that applies an end seal between adjacent articles in a film,
  Before and after the cylindrical film is disposed on the side of the transfer path and directed toward the transfer pathApartThe rotation axis is aligned with each of the front frame member and the rear frame member arranged opposite to each otherIt is supported so that it can rotate integrally.TheFrom a pair of first rotating bodiesRuA first rotating body pair;
  SaidIn each frame memberBelow the first rotating body pairAtAt regular intervalsSo that the axis of rotation matchesIt is supported so that it can rotate integrally.TheFrom a pair of second rotating bodiesFirstA pair of rotating bodies,
  Each rotating body pairEach inPosition eccentric from the axis of rotationTimesMoveableCantileverSupported,Provided with a support portion extending horizontally to face the transfer pathA pair of support members;
  A seal member provided with a seal surface facing each of the support portions in each of the support members;
  Disposed on the outer side of the rear frame member, and , A rotation transmitting member for rotating the second rotating body pair in opposite directions;
  SaideachSupport memberA projecting portion projecting outward from the rear frame member inOne support memberAnd a slide shaft that is slidably inserted into the bearing, and is arranged to rotate integrally with the protrusion of the other support member. The first , The seal member is configured to be close to and away from each other as the second rotating body pair rotates.It is characterized by that.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, the end seal device in the horizontal bag making and filling machine according to the present invention will be described with reference to the accompanying drawings by giving a preferred embodiment. In addition, in an Example, the direction orthogonal to the horizontal transfer direction of a cylindrical film is called a front-back direction, and an operator shall be located in the front side with respect to the transfer path of a cylindrical film.
[0009]
1 and 2 show the overall configuration of an end seal device in a horizontal bag making and filling machine according to an embodiment of the present invention, and the upstream side in the film transport direction in a machine frame 10 formed in a square frame shape. In addition, a first transfer conveyor (transfer conveyor) 11 is disposed, and a second transfer conveyor (transfer conveyor) 12 having the same transfer level as that of the first transfer conveyor 11 is disposed in series on the downstream side thereof. ing. The upper first seal member (seal member) 13 and the lower side move in the film transfer direction between the opposite ends of the conveyors 11 and 12 and move closer to and away from each other in the vertical direction (opening and closing operation). An end seal device 15 including a second seal member (seal member) 14 is disposed.
[0010]
Prior to the description of the end seal device 15, the configuration of the first transfer conveyor 11 and the second transfer conveyor 12 will be briefly described. A first fixed frame 16 composed of a pair of side plates spaced apart from each other by a predetermined distance in the front-rear direction is disposed on the upper portion of the machine casing 10 upstream of the position where the end seal device 15 is disposed. Further, a first movement formed in a U-shape is formed inside the first fixed frame 16 so as to open downward from a pair of side plates and an upper plate that are spaced apart and opposed in the front-rear direction at an interval smaller than the interval between the side plates. The frame 17 is disposed so as to be horizontally movable in the film transfer direction with respect to the first fixed frame 16. Further, a plurality of pulleys 16a are pivotally supported on the first fixed frame 16, and a plurality of pulleys 17a are also pivotally supported on the first moving frame 17, and the pulleys 16a and 17a are pivotally supported. The 1st endless belt 18 is wound so that run is possible, and the 1st transfer conveyor 11 is constituted. A first motor 19 disposed at a lower portion of the frame 16 is connected to the pulley 16a at a predetermined position disposed on the first fixed frame 16, and the pulley 16a is rotated by the motor 19 in a required direction. Thus, the first endless belt 18 travels in the required direction.
[0011]
The second transfer conveyor 12 is configured substantially symmetrically with the first transfer conveyor 11 with an end seal device 15 interposed therebetween. That is, on the upper part of the machine casing 10, a second fixed frame 20 composed of a pair of side plates spaced apart by a predetermined distance in the front-rear direction is disposed. Further, a second moving frame formed inside the second fixed frame 20 in a U-shape that opens downward from a pair of side plates and an upper plate that are spaced apart and opposed in the front-rear direction at an interval smaller than the interval between the side plates. 21 is disposed so as to be horizontally movable in the film transfer direction with respect to the second fixed frame 20. Further, a plurality of pulleys 20a are pivotally supported on the second fixed frame 20, and a plurality of pulleys 21a are also pivotally supported on the second moving frame 21, and between these pulleys 20a and 21a. The 2nd endless belt 22 is wound so that run is possible, and the 2nd transfer conveyor 12 is constituted. A second motor 23 disposed at a lower portion of the frame 20 is connected to the pulley 20a at a predetermined position disposed on the second fixed frame 20, and the pulley 23a is rotated in a required direction by the motor 23. Thus, the second endless belt 22 travels in the required direction.
[0012]
In the first transfer conveyor 11, the first endless belt 18 is set to travel in a required direction at substantially the same speed as the film transfer speed, and a cylinder filled with an article 24 placed on the endless belt 18. The film 25 is transferred toward the end seal device 15. In the second transfer conveyor 12, the second endless belt 22 is set to be faster than the traveling speed of the first endless belt 18, and is end-sealed and cut by both seal members 13 and 14 of the end seal device 15. Further, the preceding package body can be surely separated from the subsequent unpackaged body and discharged.
[0013]
Further, as shown in FIG. 1, a first cam groove 26a is formed in the first cam plate 26 suspended from the downstream end of the first moving frame 17 so as to approach the second moving frame side from the bottom to the top. At the same time, a second cam plate 27 suspended from the upstream end of the second moving frame 21 is formed with a second cam groove 27a that is close to the first moving frame side from below to above. An upstream first roller 28a disposed on a holding member 41 (described later) that horizontally supports the second seal member 14 is slidably fitted into the first cam groove 26a, and a downstream first roller 28a is slidably fitted. Two rollers 28b are slidably fitted in the second cam groove 27a. That is, the conveyor tips of the first moving frame 17 and the second moving frame 21 that are directed to the seal members 13 and 14 move in the film transfer direction corresponding to the movement of the seal members 13 and 14 in the film transfer direction, The leading end of the first moving frame 17 is always positioned on the upstream side of the seal members 13 and 14, and the leading end of the second moving frame 21 is always positioned on the downstream side of the sealing members 13 and 14. Further, in a state where the second seal member 14 is positioned at the lowest point, the first moving frame 17 and the second moving frame 21 are close to each other, and both rollers 28a and 28b are moved together with the upward movement of the second seal member 14. When lifted, the first moving frame 17 and the second moving frame 21 are separated from each other, and a gap that allows the second seal member 14 to move above the conveyor between the front ends of the conveyors facing the seal members 13 and 14. Is configured to form. The first cam plate 26 and the second cam plate 27 are disposed only on the rear side plates of the corresponding moving frames 17 and 21, and are composed of both cam plates 26 and 27 and rollers 28a and 28b. Opening / closing means for moving the distal ends of the frames 17 and 21 in correspondence with the movement of the seal members 13 and 14 in the film transfer direction and moving them relatively close to and away from each other does not face the front side of the film transfer path. .
[0014]
Next, the configuration of the end seal device 15 will be described. A support frame 29 formed in a frame shape is arranged on the machine frame 10 facing the rear side (right side in FIG. 2) with respect to the arrangement positions of the first transfer conveyor 11 and the second transfer conveyor 12, and the support A frame 30 is attached to the frame 29 so as to be movable in the vertical direction. As shown in FIG. 3, the frame 30 is composed of a pair of frame members 31 and 32 arranged to be spaced apart from each other in the front-rear direction. The first rotating body pair 33 is disposed, and the second rotating body pair 34 is disposed at a lower position. The first rotating body pair 33 is rotatably supported by a front first rotating body (first rotating body) 33a rotatably supported by the front frame member 31 facing the front side and a rear frame member 32 facing the rear side. After that, the first rotating body (first rotating body) 33b is formed, the rotation axes of both 33a and 33b are aligned horizontally, and the direction of the rotation axis of the first rotating body pair 33 coincides with the front-rear direction. Is set. In addition, the first cylindrical body 35 is commonly connected to a position that is eccentric from the rotation axis of both the rotating bodies 33a and 33b, and is configured to be integrally rotatable. Similarly to the first rotating body pair 33, the second rotating body pair 34 includes a front second rotating body (second rotating body) 34a rotatably supported by the front frame member 31 facing the front side, and a rear side. The second rotating body (second rotating body) 34b is rotatably supported by the facing rear frame member 32. The rotational axes of the two rotating bodies 34a and 34b are aligned horizontally, and the second rotating body pair 34 rotates. The direction of the axial center is set so as to coincide with the front-rear direction, and the second cylindrical body 36 is commonly connected to a position eccentric from the rotational axis of both the rotating bodies 34a and 34b so as to be integrally rotatable. ing. The rotation axis of the first rotating body pair 33 and the rotation axis of the second rotating body pair 34 are set on the same vertical plane and parallel to each other. Further, a first driven gear 37 is disposed at an end portion of the rear first rotating body 33b protruding outward from the rear frame member 32 so as to be integrally rotated, and the rear second rotating body 34b has a rear end. A second driven gear 38 is disposed at an end protruding outward from the frame member 32 so as to be integrally rotatable.
[0015]
As shown in FIG. 3, a cylindrical shaft portion 39 a of a first support member 39 on which the first seal member 13 is disposed is inserted into the first cylindrical body 35 in the first rotating body pair 33 from the front side. And is supported rotatably. One projecting portion that is connected to the front end portion of the shaft portion 39a and extends outward from the first tubular body 35 along the direction of the rotation axis so as to face above the transfer path of the tubular film 25. The first seal member 13 is disposed on the lower surface of the prismatic support portion 39b as a downward direction in which the seal surface faces the transfer path of the tubular film 25. Further, a cylindrical shaft portion 40a of a second support member 40 on which the second seal member 14 is disposed is inserted into the second cylindrical body 36 of the second rotating body pair 34 from the front side and rotated. Supported as possible. One side of the shaft 40a that is connected to the front end of the shaft 40a and extends outward from the second tubular body 36 along the direction of the rotational axis and extends below the transfer path of the tubular film 25. A second seal member 14 facing the first seal member 13 in parallel across the film transfer path on the upper surface of a prismatic support portion 40b as a protruding portion, transfers the seal surface to the film via a holding member 41. It is arranged in an upward direction directed to the road. The rotation axis of each support member 39, 40 with respect to the corresponding rotating body pair 33, 34 is parallel to the rotation axis of the rotating body pair 33, 34 with respect to the frame members 31, 32, and The amount of eccentricity from the rotational axis is set to be the same in the first rotating body pair 33 and the second rotating body pair 34. Then, by rotating the pair of rotating bodies 33 and 34 in opposite directions, the pair of seal members 13 and 14 are opposed to each other while maintaining a posture in which the seal surfaces are opposed to each other by a posture holding mechanism 53 described later. Are moved circularly with the same turning radius. The circular motion trajectory of the pair of seal members 13 and 14 is set so as to overlap in a predetermined section, and in the overlapping section, the both seal members 13 and 14 are in contact with the tubular film 25 sandwiched therebetween. When moving toward the end, the film 25 is configured to be end-sealed under a predetermined pressure.
[0016]
The first seal member (one seal member) 13 is connected to a support portion 39b of the first support member 39 via a pair of support shafts 42 and 42 that are spaced apart in the front-rear direction. The seal member (the other seal member) 14 is disposed so as to be movable in the up-down direction, which is a direction opposite to the seal member 14. As shown in FIG. 4, the lower end of each support shaft 42 is fixed to the first seal member 13 by screws and the upper side is slidable on a guide tube 43 disposed on the support portion 39b and is downward. It is inserted in a state where it has been secured. In addition, a guide rod 45 inserted through a storage hole 42a drilled in the support shaft 42 is suspended from the center of the lower surface of the lid member 44 disposed so as to cover the upper portion of the guide cylinder 43, and the storage hole The upper end portion of the compression coil spring 46 as an elastic member inserted into 42a is regulated by the step portion of the guide rod 45, and the first seal member 13 is always biased downward (toward the second seal member 14). It is configured to The compression coil springs 46 and 46 allow the first seal member 13 to be retracted toward the first support member 39 when the first seal member 13 and the second seal member 14 come into contact with each other. It functions to obtain a predetermined clamping pressure between the two seal members 14. Further, a cutter 47 is disposed on the first seal member 13 so as to cut the tubular film 25 at the time of contact with the second seal member 14.
[0017]
As shown in FIG. 5, the upper connecting member 48 is connected to the end portion 39c as the other protruding portion that protrudes outward from the rear first rotating body 33b of the shaft portion 39a of the first support member 39 in the first rotation. A pair of slide shafts (shafts) 49, 49 are arranged on the upper connecting member 48 so as to be rotatable integrally with the first support member 39 with respect to the body pair 33 and spaced apart in the film transport direction. The upper end of the is disposed. Both slide shafts 49, 49 extend downward in parallel with a predetermined length, and their lower ends are connected by a lower connecting member 50. In addition, the bearing holder 51 is attached to the second rotating body pair 34 at the end 40c as the other protruding portion protruding outward from the rear second rotating body 34b of the shaft portion 40a of the second support member 40. The bearing holder 51 is provided with a pair of slide bearings (bearings) 52 and 52 spaced apart from each other in the film transfer direction. A slide shaft 49 corresponding to the slide bearing 52 is slidably inserted. Then, from the slide shafts 49 and 49 and the slide bearings 52 and 52, the first and second seal members 13 and 14 are held in a posture for moving toward and away from each other while maintaining a constant posture during the circular motion. A mechanism 53 is configured.
[0018]
An operating shaft 54 is pivotally supported so as to extend inward and outward between the positions of the rear first rotating body 33b and the rear second rotating body 34b in the rear frame member 32. Further, as shown in FIG. 6, a servo motor 55 as a driving motor disposed on the rear frame member 32 faces between the frame members 31 and 32, and the motor 55 and the operating shaft 54 are connected to each other. The transmission means 56 is composed of pulleys, belts, and the like. A driving gear 57 is disposed at a shaft end portion extending outwardly from the rear side of the operating shaft 54 so as to be integrally rotatable, and the first driven gear 37 is disposed on the rear first rotating body 33b. Is engaged. Further, an idle gear 58 that meshes with the drive gear 57 is pivotally supported on the rear frame member 32, and the idle gear 58 is disposed on the rear second rotating body 34b. 38. That is, when the servo motor 55 is driven to rotate the operating shaft 54 in a predetermined direction, the upper and lower rotating body pairs 33 and 34 are mutually connected via the drive gear 57, the idle gear 58 and the pair of driven gears 37 and 38. The first support member 39 disposed in the first rotating body pair 33 and the second support member 40 disposed in the second rotating body pair 34 rotate in opposite directions, and circular motions in opposite directions ( (Proximity / separation movement). Due to the connecting structure of the first and second support members 39 and 40 by the posture holding mechanism 53, the first seal member 13 and the second seal member 14 have their seal surfaces directed to the transfer path of the tubular film 25. In such a state that the posture is maintained, the movement of approaching each other on the upstream side in the film transport direction and separating from each other on the downstream side is repeated.
[0019]
In addition, the moving speed in the film transfer direction in the contact state in the overlapping section of the seal members 13 and 14 is set to be substantially the same as the film transfer speed. Further, the arrangement interval between the upper and lower rotating body pairs 33, 34 (the first rotating bodies 33a, 33b and the second rotating bodies 34a, 34b) is set as large as possible, and both support members 39, 40 are closest to each other. Even when the support members 39, 40 are sufficiently spaced, the shaft portions 39a, 40a (tubular bodies 35) of the support members 39, 40 with respect to the rotating body pairs 33, 34 caused by the posture holding mechanism 53 are secured. , 36) The rotational swing around is suppressed, and the contact state between the seal members 13 and 14 is improved.
[0020]
An adjustment shaft 59 extending in the film transport direction is pivotally supported at the lower end of the support frame 29, and the pair of first helical gears 60 are separated from the adjustment shaft 59 in the axial direction. , 60 (only one is shown) is arranged so as to be integrally rotatable. In addition, second helical gears 61 that mesh with the first helical gears 60 are pivotally supported at both ends of the support frame 29 in the film transport direction, and extend vertically in the second helical gears 61. The existing adjustment screw 62 is disposed so as to rotate integrally, and the adjustment screw 62 is screwed into a female screw member 63 provided at a corresponding position of the frame body 30. An adjustment operation handle 64 is disposed at one end of the adjustment shaft 59. By rotating the handle 64 in the forward and reverse directions, a screwing action by an adjustment screw means comprising an adjustment screw 62 and a female screw member 63 is provided. The frame body 30 moves in the vertical direction with respect to the support frame 29. Accordingly, the height position where the pair of seal members 13 and 14 abut can be adjusted according to the height of the article 24 transferred by the transfer conveyors 11 and 12. The adjusting shaft 59, the helical gears 60 and 61, the adjusting screw 62, and the female screw member 63 constitute a height adjusting means 65.
[0021]
[Effect of the embodiment]
Next, the operation of the end seal device according to the embodiment will be described. The front ends of the first moving frame 17 of the first transfer conveyor 11 and the second moving frame 21 of the second transfer conveyor 12 that are directed toward the end seal device 15 are close to each other. A state in which the first support member 39 and the second support member 40 are in a state of being separated from each other, and a state in which the tubular film 25 is allowed to pass between the first seal member 13 and the second seal member 14; (See FIG. 1).
[0022]
The cylindrical film 25 filled with the article 24 transferred to the first transfer conveyor 11 is transferred to the downstream side by the first endless belt 18 that runs at substantially the same speed as the film transfer speed. The end seal device 15 is driven by the servo motor 55 at the required timing, and the upper and lower support members 39, 40 are moved in a circle (rotation), so that the first seal member 13 and the first seal device 15 The two seal members 14 are close to each other while moving upstream. That is, the first driven gear 37 meshed with the drive gear 57 rotated in a predetermined direction by the servo motor 55 rotates the first rotating body pair 33 and the second driven gear 38 meshed with the idle gear 58. Accordingly, the second rotating body pair 34 rotates in the opposite direction to the first rotating body pair 33. At this time, the first support member 39 supported by the first rotating body pair 33 and the second support member 40 supported by the second rotating body pair 34 are connected to the slide shafts 49, 49 of the posture holding mechanism 53. As the slide bearings 52 and 52 slide, they move circularly upward and downward on the upstream side while maintaining their respective postures, and the first seal member 13 and the second seal member 14 integrally with the lower and upper side respectively. Make a circular motion while keeping the posture upward. Further, the leading ends of the moving frames 17 and 21 of the first and second transfer conveyors 11 and 12 move in the film transfer direction corresponding to the movement of the seal members 13 and 14 in the film transfer direction.
[0023]
  The pair of seal members 13, 14 isunderBy moving close to each other while moving to the flow side, both the sealing members 13 and 14 come into contact with each other with the tubular film 25 positioned between adjacent articles in the film transfer direction in the tubular film 25 interposed therebetween. At this time, in conjunction with the movement of the second seal member 14, the tips of the moving frames 17, 21 of the first and second transfer conveyors 11, 12 move away from each other, and above the second seal member 14. Define a gap that allows protrusion to
[0024]
  Both the sealing members 13 and 14 are in contact with each other while moving in the overlapping section, and move downstream at substantially the same speed as the cylindrical film 25 is transferred. A seal is applied. In the overlapping section, the first seal member 13 is first supported against the elasticity of the compression coil springs 46, 46.PartRetreats to the material 39 side, and moves while being pressed against the second seal member 14 by the elasticity of the springs 46, 46. In addition, the cutter 47 is operated in a state where the seal members 13 and 14 are in contact with each other, and the tubular film 25 is cut. As shown in FIG. 4, each of the compression coil springs 46 is inserted into the support shaft 42 and is not exposed to the outside by the guide tube 43 or the lid member 44. Therefore, maintenance such as cleaning for the compression coil spring 46 becomes unnecessary.
[0025]
As a result of the rotation of the rotary member pairs 33 and 34 in a predetermined direction, the seals 13 and 14 are separated from the tubular film 25 while maintaining the posture by the action of the posture holding mechanism 53. Release 25. The package obtained by end sealing and cutting by both seal members 13 and 14 is immediately downstream from the position where the end seal device 15 is disposed by the second transfer conveyor 12 operating at high speed. It is transferred to. In conjunction with the lowering of the second seal member 14, the moving frames 17 and 21 are close to each other, so that the next article 24 is smoothly delivered from the first transfer conveyor 11 to the second transfer conveyor 12. .
[0026]
As described above, the rotation transmission of the rotary body pair 33, 34, the transmission means 56 for rotationally driving the rotary body pair 33, 34 (seal members 13, 14), the gears 37, 38, 57, 58, etc. Since the posture holding mechanism 53 that holds the posture of the members and the seal members 13 and 14 is disposed on the side of the seal members 13 and 14, that is, the film transport path, the rotary member pairs 33 and 34, the transmission means 56. In addition, foreign matters such as empty bags and debris of the article 24 are not caught in the rotation transmitting member and the posture holding mechanism 53, and maintenance such as cleaning for these rotating parts and sliding parts becomes unnecessary. Further, the support members 39 and 40 on which the seal members 13 and 14 are disposed are supported only on the rear side by the rotating body pairs 33 and 34 and the frame body 30 in a cantilever manner, so that the front side, that is, the side on which the operator is located. Is in an open state, so even if empty bags or debris of the article 24 are scattered around the transfer conveyors 11 and 12 or if the debris of the article 24 adheres to the endless belts 18 and 22 In addition, it is possible to easily perform maintenance such as cleaning corresponding to this. Further, even when a residue such as a melted film adheres to the sealing members 13 and 14, the sealing members 13 and 14 can be easily cleaned.
[0027]
Next, when the height dimension of the article 24 changes due to an order change or the like, the adjustment operation handle 64 is rotated in a predetermined direction so that the adjustment screw 62 and the female screw member 63 are engaged with each other. The frame body 30 is slidably adjusted in the vertical direction with respect to the support frame 29, and the contact position between the seal members 13 and 14 can be set to the intermediate position in the height direction of the article 24. As a result, the end seal position of the film with respect to the article 24 can always be in the middle of the height direction. As shown in FIG. 6, the servo motor 55 that rotationally drives the pair of rotating bodies 33 and 34 is disposed inside the frame body 30 and is configured to be moved and adjusted integrally by the height adjusting means 65. Therefore, the driving force transmission system is not complicated, and the device can be made compact.
[0028]
[Example of change]
With respect to the pair of rotating bodies, instead of the configuration in which the pair of rotating bodies are connected by a cylindrical body, both the front and rear rotating bodies are connected together by an appropriate connecting member so as to be integrally rotatable. It is possible to adopt a configuration in which the support member is rotatably supported by both rotary bodies by a rotary bearing provided in the base. As for the posture holding mechanism of the seal member, a slide shaft may be provided on the lower second support member, and a slide bearing may be provided on the upper first support member. Further, one slide shaft and one slide bearing in the posture holding mechanism may be provided, and in this case, the slide shaft and the slide bearing may be directly provided on the support member.
[0029]
The height adjusting means for adjusting the height position where the seal member abuts may employ a configuration in which the position is automatically adjusted by a drive motor or the like instead of being manually operated. As for the opening / closing means for moving the front and rear of the pair of transfer conveyors closer to and away from each other, the cam plate is disposed on the second seal member side and the roller is disposed on the conveyor side, or the link rod, contrary to the embodiment. For example, the conveyor and the second seal member may be connected. Further, in the embodiment, the compression coil spring (elastic member) is inserted into the support shaft, but the slide support means into which the spring is inserted is another member such as a guide tube disposed on the support member side. Also good.
[0030]
【The invention's effect】
  As explained above, according to the end seal device in the horizontal bag making and filling machine according to the invention of claim 1 of the present application,The first supported by a pair of frame members disposed on the sides of the film transfer path , SecondRotating body pairIn a cantilevered stateSupported support memberOn the support partSince the seal member is disposed, the film transfer path of the seal memberhandThe front side is open, and maintenance such as cleaning of the seal member and the support member can be easily performed. Also,Support memberTo the outside of the rear frame memberProtrusionPart,First , A slide for maintaining the posture of the rotation transmitting member and the seal member for rotationally driving the second rotating body pair in opposite directions.axisAndSince bearings are provided, these are alsoRear sideTherefore, there is no possibility that foreign matter such as empty bags or scum of articles will be caught, and maintenance such as cleaning may be unnecessary.
[0031]
  In the invention according to claim 2, since the height adjusting means for adjusting the height position at which the pair of seal members contact is provided, the contact height position of the seal member can be changed and adjusted according to the height of the article. . Therefore, a good end seal without wrinkles can be applied to the tubular film. Furthermore, in the invention according to claim 3, the transfer conveyor disposed on the upstream side and the downstream side in the film transport direction at the position where the seal member is disposed is separated and moved in close proximity with the proximity and separation of the pair of seal members. Since it comprised, the reliable delivery of the articles | goods which pass the arrangement | positioning position of an end seal apparatus can be achieved. Also, the film transfer path of the seal memberFront sideSince it is in an open state, maintenance such as cleaning of the transfer conveyor can be easily performed.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing a partial cross section of an end seal device according to an embodiment of the present invention.
FIG. 2 is a schematic side view showing the end seal device according to the embodiment in a partial cross section.
FIG. 3 is a longitudinal sectional side view of a main part showing an arrangement site of a support member according to an embodiment with respect to a rotating body pair.
FIG. 4 is a longitudinal sectional side view of a main part showing an arrangement site of a first seal member with respect to a first support member according to an embodiment.
FIG. 5 is a rear view showing the end seal device according to the embodiment in a partially broken view.
FIG. 6 is a cross-sectional plan view showing a frame according to the embodiment.
[Explanation of symbols]
  11 First transfer conveyor (transfer conveyor)
  12 Second transfer conveyor (transfer conveyor)
  13 First seal member (seal member)
  14 Second seal member (seal member)
  24 goods
  25 Cylindrical film
  26 First cam plate (opening / closing means)
  27 Second cam plate (opening / closing means)
  28a First roller (opening / closing means)
  28b Second roller (opening / closing means)
  31 Front frame member
  32 Rear frame member
  33 First rotating body pair
  33a Front first rotating body (first rotating body)
  33b Rear first rotating body (first rotating body)
  34 Second rotating body pair
  34a Front second rotating body (second rotating body)
  34b Rear second rotating body (second rotating body)
  37 1st driven gear ( Rotation transmission member )
  38 Second driven gear ( Rotation transmission member )
  39 First support member (support member)
  39b supportPart
39c end( SuddenOutPart )
  40 Second support member (support member)
  40b supportPart
40c end( SuddenOutPart )
  49 slidesaxis
  52 Slide bearing (bearing)
  57 Drive gear ( Rotation transmission member )
  58 idle gear ( Rotation transmission member )
  65 Height adjustment means

Claims (3)

Located opposite to each other across the transfer path of the tubular film (25) filled with the article (24), while moving in the transfer direction along with the transfer of the tubular film (25), facing and separating from each other In the end seal device in the horizontal bag making and filling machine that performs end seal between adjacent articles in the tubular film (25) by the pair of moving seal members (13, 14),
A rotating shaft is disposed on each of the front frame member (31) and the rear frame member (32) disposed on the side of the transfer path of the tubular film (25) and arranged opposite to each other in the front- rear direction toward the transfer path. a pair of first rotating member which is integrally rotatably supported to the mind matches (33a, 33b) the first rotor pair Ru Tona (33),
Wherein each frame member (31, 32) in the first pair of rotating members (33) a pair of second rotating member which is integrally rotatably supported to be spaced Jo Tokoro distance below the axis of rotation is coincident in (34a, 34b) second rotator pair Ru Tona (34),
Wherein each pair of rotating members (33, 34) in the eccentric position twice rotatably in cantilevered from each of the rotation axis, comprises a supporting portion extending horizontally to face the transport path (39 b, 40b) A pair of support members (39, 40),
Each of the support portions (39a, 40a ) in each of the support members (39 , 40) , a seal member (13, 14) disposed with a seal surface facing each other ,
A rotation transmitting member (37, 38, 57, 58) disposed on the outer side of the rear frame member (32) and configured to rotate the first and second rotating body pairs (33, 34) in opposite directions ; ,
Wherein a protrusion protruding from the outer side the rear frame member (32) in the support members (39, 40) (39c, 40c), is integrally rotated in the projecting portion of (40c) one of the support member (40) The bearing (52) arranged in this manner and the slide shaft (49 ) which is arranged to rotate integrally with the protrusion (39c) of the other support member (40) and is slidably inserted into the bearing (52). ) and has a respective, the first 1, <br/> that the sealing member along with the rotation of the second rotor pair (33, 34) (13, 14) configured to be close to and away from each other An end seal device for a horizontal bag making and filling machine. Said frame member (31, 32) provided with a support frame (29) for movably supporting the top and bottom, the frame member (31, 32) a pair of sealing members (13, 14) high by vertically moving the The end seal device for a horizontal bag making and filling machine according to claim 1, further comprising height adjusting means (65) for adjusting the height position.   A transfer conveyor (11, 12) for transferring the cylindrical film (25) is provided on each of the upstream and downstream sides in the film transfer direction across the position where the seal member (13, 14) is disposed, and a pair of seals When the seal tip (13, 14) approaches the seal member (13, 14) by moving the front end of the conveyor facing the seal member (13, 14) relatively apart and close to each other. The end seal device for a horizontal bag making and filling machine according to claim 1 or 2, further comprising opening / closing means (26, 27, 28a, 28b) for allowing the seal member (14) provided on the lower side to move upward of the conveyor. .

Images