JP3947866B2 - End seal device for horizontal bag making and filling machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a horizontal bag making and filling machine that forms a strip-shaped film into a cylindrical shape, supplies articles at a predetermined interval into the molded cylindrical film, and end-seals between the articles containing the cylindrical film. This relates to an end seal device.
[0002]
[Prior art]
About the end seal device of the horizontal bag making and filling machine, it is provided with a pair of seal bodies facing up and down across the transfer path of the tubular film, and the tubular film is sandwiched by bringing both seal bodies into contact with each other. The two seals are moved horizontally along the direction of transfer of the cylindrical film to give a seal (heat seal), then move away from each other, retreat, and move horizontally in contact with each other again. In some cases, a so-called box motion type is used.
[0003]
As a device for causing the both seal bodies to perform a box motion motion, a linear reciprocating motion along the film transfer direction and a vertical reciprocating motion in the vertical direction are imparted to both seal bodies in a state in which the postures of both seal bodies are maintained. There is a configuration one. According to this configuration, since the sealing surfaces of the upper and lower sealing bodies are always opposed to each other and the tubular film to be transferred can be sandwiched and heat sealed, the section where the upper and lower sealing bodies move in the sandwiched state (seal This is advantageous in that it is possible to set a longer interval.
[0004]
Conventionally, as this type of end seal device, one having a configuration disclosed in Japanese Patent Laid-Open No. 9-249211 has been proposed. In this device, a frame that supports a pair of upper and lower seal bodies (seal bars) and a crank that is rotated by an appropriate drive source are connected via a connecting rod, and the rotational movement of the crank is transmitted to the frame via the connecting rod. Thus, the frame is configured to give a linear reciprocating motion along the film transfer direction.
[0005]
[Problems to be solved by the invention]
However, in the above-described end seal device, the mechanism that imparts linear reciprocation along the film transfer direction to the upper and lower seal bodies includes a connecting rod that connects the crank rotated by the drive source and the frame. It is pointed out that it is complicated.
[0006]
OBJECT OF THE INVENTION
In view of the above-mentioned problems inherent in the prior art described above, the present invention has been proposed to suitably solve this problem, and it is possible to set a long seal section and to make a horizontal bag filling with a simple structure. It is an object to provide an end seal device for a machine.
[0007]
[Means for Solving the Problems]
  In order to overcome the above-mentioned problems and to achieve the intended purpose suitably, an end seal device for a horizontal bag making and filling machine according to the present invention comprises:
  By a pair of seal bodies which are arranged up and down across the transfer path of the cylindrical film containing the article and move in the transfer direction along with the transfer of the cylindrical film while holding the cylindrical film, In an end seal device of a horizontal bag making and filling machine that performs sealing before and after sandwiching the article of film,
  A support frame that is supported so that the pair of seal bodies can be opened and closed, and that can be horizontally moved back and forth on the machine frame; and
  Disposed on the support frame;An operating means for opening and closing the pair of seal bodies;
  The machine frameofleftTo the rightTo be rotatableRespectivelyProvidedIn the eccentric positionEngagement memberIs arrangedA rotating body provided,
  In the support frameLeftrightSide frameArranged inThe engaging member can be engaged and moved up and down.A guide,
  A servo motor disposed on the machine frame and capable of integrally rotating the pair of rotating bodies;
  A timing setting means for changing each operation timing for bringing the pair of seal bodies close to and away from each other by the operation means;
  The section in which the pair of seal bodies horizontally move in the transfer direction of the tubular film in a state where the tubular film is sandwiched is configured to be change-controlled.It is characterized by that.
[0008]
DETAILED DESCRIPTION OF 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 below with reference to the accompanying drawings.
[0009]
FIG. 1 and FIG. 2 show a main part of an end seal device of a horizontal bag making and filling machine according to an embodiment, and a machine frame formed in a rectangular frame shape of the bag making and filling machine (end seal device). 10, a first transfer conveyor 12 is disposed on the upstream side (rear side) in the film transfer direction, and a second transfer conveyor 14 having a transfer level coincident with the first transfer conveyor 12 on the downstream side (front side). Are arranged in series. An end seal provided with an upper first seal body 16 and a lower second seal body 18 which are moved close to and away from each other in the vertical direction (opening and closing operation) between opposite ends of the conveyors 12 and 14. A device 20 is provided. Both the transfer conveyors 12 and 14 are belt conveyors in which an endless belt is wound around a plurality of pulleys rotatably supported by a fixed frame and a moving frame (not shown). Thus, the article 24 accommodated in the tubular film 22 at a predetermined interval in the film transfer direction, or the package in which the article 24 is packaged is transferred to the downstream side.
[0010]
In the first transfer conveyor 12, the endless belt is set to run in the required direction at substantially the same speed as the film transfer speed, and the tubular film 22 in which the article 24 placed on the endless belt is accommodated. Is transferred toward the end seal device 20. Further, in the second transfer conveyor 14, the endless belt is set to be higher than the traveling speed of the endless belt in the first transfer conveyor 12, and the preceding package sealed and cut by the end seal device 20 is It is configured so that it can be reliably separated from the subsequent unwrapped body and discharged.
[0011]
The downstream end of the first transfer conveyor 12 and the upstream end of the second transfer conveyor 14 are configured to reciprocate in the film transfer direction in synchronization with the second seal body 18, and They are set so as to be separated from each other and close to each other in accordance with the movement. That is, in the state where the second seal body 18 is located at the lowest point, the downstream end and the upstream end of both conveyors 12 and 14 are close to each other, and between the conveyors of the articles 24 accommodated in the tubular film 22. The downstream end and the upstream end are separated from each other with the upward movement of the second seal body 18 so as to form a gap that allows the upward movement of the second seal body 18. Yes.
[0012]
Next, the configuration of the end seal device 20 will be described. A pair of guide rods 26, 26 extending in parallel with the film transfer direction are disposed on both sides of the machine frame 10 in the width direction (left-right direction) intersecting with the film transfer direction. The first side frame member 28 is slidably disposed between the pair of upper and lower guide rods 26 on the left side and the right side. And the 1st frame 30 comprised from the left-right paired 1st side frame materials 28 and 28 is comprised so that it can move horizontally back and forth in the film transfer direction along the four guide rods 26. FIG.
[0013]
  On the outer side surface of each first side frame member 28 (the surface opposite to the surface facing the other first side frame member 28), as shown in FIG. The first guide members 32, 32 are arranged in parallel spaced apart from each other in the film transport direction. In addition, each of the mounting plates 34 disposed on the left and right sides of the machine frame 10 has an operating gear 36 as a rotating body rotating on the inner side facing the corresponding first side frame member 28. A roller 38 as an engaging member pivotally supported at an eccentric position of the operating gear 36 is engaged and disposed so as to be able to roll between the first guide members 32 and 32. . A drive shaft 40 is rotatably mounted between the mounting plates 34 and 34, and a drive gear 42 that meshes with each operating gear 36 is disposed on the drive shaft 40 so as to be integrally rotatable. Further, as shown in FIG. 3, a servo motor 44 as drive means is disposed on one mounting plate 34, and the motor 44 and the drive shaft 40 are connected via a transmission mechanism 46 including a pulley and a belt. Has been. That is, by driving the servo motor 44, the pair of operating gears 36, 36 rotate in the same direction, and the roller 38 of each operating gear 36 rolls between the corresponding pair of first guide members 32, 32. Thus, the first frame 30 is moved horizontally back and forth along the film transfer direction. The operating gear 36 is provided with a plurality of mounting holes (not shown) for mounting the roller 38 at different positions in the radial direction, and by changing the mounting position of the roller 38, First frame 30 isIt is configured to be able to adjust the stroke that moves back and forth in the film transport direction.
[0014]
A pair of second guide members 48, 48 as guide means extending in the vertical direction is provided on the inner side surface of each first side frame member 28 (the surface facing the other first side frame member 28). As shown in FIG. 2, the second side frame member 50 is slidable in the vertical direction between the pair of second guide members 48 and 48, being spaced apart in parallel in the front and rear directions in the film transfer direction. It is arranged. The pair of second side frame members 50, 50 facing left and right are connected by a connecting member 52 erected in the vicinity of the lower end portion thereof, and is constituted by the pair of second side frame members 50, 50 and the connecting member 52. The second frame body 54 is configured to be capable of changing the position in the vertical direction with respect to the first frame body 30. In the embodiment, the first frame 30 and the second frame 54 constitute a support frame 56 that supports the pair of seal bodies 16 and 18.
[0015]
As shown in FIG. 1, holding members 58 are respectively disposed on the inner side surfaces near the upper ends of the second side frame members 50, and a slide shaft 60 having a predetermined length is connected to the connecting member 52 and the holding members 58. Are supported so as to be slidable in the vertical direction, and the lower ends of a pair of slide shafts 60, 60 extending downward from the connecting member 52 are connected by a first support member 61. Further, a holder 62 is installed between the upper ends of the slide shafts 60, 60 extending upward from the holding members 58, 58 and facing upward from the film transfer path. The first seal body 16 is disposed in a state of being directed to the transfer path of the film-like film 22. The first seal body 16 is provided with a cutter 63, and is configured to cut the tubular film 22 when contacting the second seal body 18.
[0016]
Between the holding members 58, 58 and the connecting member 52, a second support member 64 parallel to the first support member 61 can move up and down on the slide shafts 60, 60 (with respect to the first support member 61. Relatively close to and away from each other). On the upper surface of the second support member 64, the second seal body 18 facing the first seal body 16 in parallel across the film transport path is arranged with the seal surface directed to the film transport path. It is installed. When the operation gears 36 and 36 are rotated, the pair of seal bodies 16 and 18 together with the support frame 56 are configured to move horizontally in the front and rear directions in the film transfer direction. Note that a heater is embedded in both the sealing bodies 16 and 18, and the cylindrical film 22 is sandwiched between the sealing bodies 16 and 18 heated by the heater, whereby the film 22 is heat sealed. Yes.
[0017]
As shown in FIG. 1, the bottom side (anti-rod side) is connected to the top surface in the center in the width direction of the connecting member 52 located below the transfer path of the tubular film 22, and the head side (rod side) is connected to each other. A pair of air cylinders 65 and 66 are provided as actuating means configured to be directed in the opposite vertical direction. The first air cylinder 65 (one air cylinder) located on the lower side is inserted into a through hole 52a drilled in the connecting member 52 and a rod 65a directed downward is extended downward. 1 is connected to the support member 61. The second air cylinder 66 (the other air cylinder) located on the upper side is connected to the second support member 64 with a rod 66a directed upward. That is, the rod 65a of the first air cylinder 65 is connected to the first seal body 16 via the first support member 61, the slide shafts 60, 60 and the holder 62, and the rod 66a of the second air cylinder 66 is The second seal member 18 is connected via the second support member 64. Accordingly, as a result of the pair of air cylinders 65 and 66 being operated in the forward and reverse directions in synchronization with each other, the first support member 61 and the second support member 64 move toward and away from each other. Are moved toward and away from each other (moved up and down), and in contact with each other with the tubular film 22 sandwiched therebetween, end sealing is applied to the film 22 under a predetermined pressure. In addition, the clamping force of the cylindrical film 22 can be changed by adjusting the pressure of the compressed air supplied to the air cylinders 65 and 66.
[0018]
In this embodiment, the servo motor 44 drives the support frame 56 back and forth horizontally in the film transfer direction, and the air cylinders 65 and 66 actuate the support members 61 and 64 to move closer to and away from each other. As a result, the first seal body 16 and the second seal body 18 come into close contact with each other on the upstream side in the film transport direction, move horizontally downstream in this contact state, and then move away from each other. It is configured to repeat the movement (box motion) that horizontally moves upstream. The support frame 56 (both seal bodies 16, 18) is moved in a predetermined section while the support frame 56 (both seal bodies 16, 18) moves horizontally from the upstream end to the downstream end in the film transfer direction. The servo motor 44 is rotationally controlled so that the speed is substantially the same as the film transfer speed. This predetermined section (constant speed section) can be changed and stored. Incidentally, in the section where the moving speed of the support frame 56 (both seal bodies 16, 18) is substantially the same as the film transport speed, the entire section in which the support frame 56 moves horizontally downstream in the film transport direction (upstream end). To the downstream end). Further, the servo motor 44 is set so as to be capable of speed control in accordance with the transfer speed and the set packaging speed of the tubular film 22 obtained from the film cut pitch set in accordance with the size of the article 24 and the set packaging speed. It has come to be.
[0019]
The operation timings of the solenoid valves connected to the air cylinders 65 and 66 are appropriate timing setting means (not shown) related to the operation of the seal bodies 16 and 18 (for example, related to the rotation of the operation gears 36 and 36). The upper and lower seal bodies 16 and 18 are arranged at substantially upstream ends in the section (constant speed section) in which the moving speed of the support frame 56 is substantially the same as the film transfer speed, as described above. However, the operation timing of the solenoid valve is set so that the upper and lower seal bodies 16 and 18 are released at the substantially downstream end by sandwiching the tubular film 22. Note that the timing at which the sealing bodies 16 and 18 hold and release the tubular film 22 is not limited to the above-described case, and may be between the substantially upstream end and the substantially downstream end in the constant velocity section. . That is, when both the sealing bodies 16 and 18 are moving to the front side in the film transporting direction (in the direction of transporting the tubular film 22) at substantially the same speed as the transporting speed of the tubular film 22, both the sealing bodies 16 and 18. Is actuated into the clamping and releasing state.
[0020]
Here, the time from when the solenoid valves of both the air cylinders 65 and 66 are operated until the both seal bodies 16 and 18 sandwich the cylindrical film 22 is the packaging speed, that is, one cycle operation time of the end seal device 20. However, if the packaging speed is greatly changed, both the sealing bodies 16 and 18 may not sandwich the tubular film 22 at the substantially upstream end in the constant velocity section described above. Therefore, if the timing setting means adjusts the operation timing of the solenoid valve so that both the sealing bodies 16 and 18 sandwich the cylindrical film 22 at the substantially upstream end in the constant velocity section, the packaging speed can be increased. Regardless, the section (sealing section) in which both the sealing bodies 16 and 18 move at substantially the same speed as the film 22 in a state where the cylindrical film 22 is sandwiched can be long, and a good packaging body can be obtained. For each article to be packaged, the operation timing of the solenoid valve is stored together with the packaging conditions such as the packaging speed described above, and the setting can be easily changed when changing the product type.
[0021]
Further, when the operation of the horizontal bag making and filling machine (end seal device 20) is stopped, when the upper and lower seal bodies 16 and 18 sandwich the cylindrical film 22, the operation is stopped (both seal bodies 16 and 18). After a predetermined time set in a timer (not shown) in the release means has elapsed after the stop of 18), the upper and lower seal bodies 16, 18 are set to be separated. Thus, heat is supplied to the tubular film 22 in the time from when both the sealing bodies 16 and 18 are stopped until they are separated from each other, and the sealing state of the tubular film 22 can be prevented from being deteriorated. Yes.
[0022]
A supporting member 67 protrudes from the outer lower end portion of each first side frame member 28, and an adjusting screw 68 extending in the vertical direction is rotatably disposed on the supporting member 67, respectively. The first side frame member 28 above the support member 67 is provided with a long hole 28a extending in a vertical direction with a predetermined length. A female screw member 69 projecting from the lower end of each of the second side frame members 50 extends outward from the corresponding long hole 28a, and an adjusting screw 68 is screwed into the female screw member 69. . Further, a first adjustment gear 70 is disposed on an adjustment screw 68 extending downward from the support member 67 so as to be integrally rotatable.
[0023]
An adjusting shaft 71 is rotatably disposed between the first side frame members 28 and 28 in the vicinity of the position where the supporting members 67 and 67 are disposed. A second adjustment gear 72 that meshes with the first adjustment gear 70 is disposed at a portion extending outward from the side frame member 28 so as to be integrally rotatable (see FIG. 2). Further, an operation handle 73 is disposed at one end of the adjustment shaft 71. By rotating the handle 73 in the forward and reverse directions, a screwing action between the adjustment screws 68 and 68 and the female screw members 69 and 69 is achieved. In addition, the pair of second side frame members 50, 50, that is, the second frame body 54 is configured to be vertically adjusted along the second guide members 48, 48, 48, 48. As a result, the second frame body 54 moves up and down with respect to the first frame body 30, and the height position where the pair of seal bodies 16 and 18 abut can be adjusted. In the embodiment, the height adjusting means 74 includes the adjusting screws 68 and 68, the female screw members 69 and 69, the first adjusting gear 70, the adjusting shaft 71, the second adjusting gear 72 and the operation handle 73.
[0024]
[Effect of the embodiment]
Next, the operation of the end seal device of the horizontal bag making and filling machine according to the embodiment will be described. As shown in FIG. 1, the pair of upper and lower seal bodies 16, 18 are in a state of being separated from each other and allowing passage of the tubular film 22. The downstream end of the first transfer conveyor 12 and the upstream end of the second transfer conveyor 14 are close to each other.
[0025]
The cylindrical film 22 in which the articles 24 transferred to the first transfer conveyor 12 are stored is transferred downstream by an endless belt that runs at substantially the same speed as the film transfer speed. In the end seal device 20, the servo motor 44 is operated at a required timing, and a pair of operating gears 36, 36 rotate in the same direction via the transmission mechanism 46, the driving shaft 40 and the driving gears 42, 42, Rollers 38 disposed on the respective operation gears 36 roll between corresponding first guide members 32, 32 of the first frame body 30, so that the support frame 56 extends along the four guide rods 26. The first seal body 16 and the second seal body 18 are horizontally moved to the upstream side while maintaining the posture. Then, at the timing when the support frame 56 moves to the front side in the film transfer direction after moving most upstream to the upstream side and arrives at the substantially upstream end in the constant speed section moving at the same speed as the film transfer speed. The pair of air cylinders 65 and 66 are operated in synchronism so that the seal bodies 16 and 18 sandwich the cylindrical film 22. As a result, as the first support member 61 to which the rod 65a of the first air cylinder 65 is connected is lowered, the first seal body 16 is lowered and the rod 66a of the second air cylinder 66 is connected to the first support member 61. As the second support member 64 is raised, the second seal body 18 is raised. At this time, the downstream end of the first transfer conveyor 12 and the upstream end of the second transfer conveyor 14 move away from each other in conjunction with the rising of the second seal body 18, and the second end via the gap formed therebetween. The seal body 18 extends above the transfer path, and the cylindrical film 22 is sandwiched between the seal body 18 and the first seal body 16.
[0026]
Both the sealing bodies 16 and 18 are accompanied by the transfer of the tubular film 22 in a state where the tubular film 22 is sandwiched with a constant sealing pressure (clamping pressure) by the urging force of the pair of air cylinders 65 and 66. The film 22 moves to the downstream side at substantially the same speed, whereby the film 22 is given a good end seal (heat seal). Further, since both the sealing bodies 16 and 18 are linearly close to each other by the operation of the air cylinders 65 and 66 with respect to the support frame 56 that moves horizontally along the film transfer direction, the both cylindrical sealing bodies 22 are sandwiched. 16 and 18 can set the sealing section which pinches the cylindrical film 22 long, and a package with a favorable sealing state is obtained. In addition, the cutter 63 is operated in a state where the seal bodies 16 and 18 are sandwiched, and the tubular film 22 is cut.
[0027]
The pair of air cylinders 65 and 66 are reversed so that the support frame 56 is released at the substantially downstream end side of the constant velocity section described above so that the sandwiching of the sealing bodies 16 and 18 with respect to the tubular film 22 is released. The first seal body 16 and the second seal body 18 are separated from each other to release the tubular film 22. The package obtained by end sealing and cutting by the end seal device 20 is quickly transferred downstream from the end seal device 20 by the second transfer conveyor 14 operating at high speed. In conjunction with the lowering of the second seal 18, the downstream end of the first transfer conveyor 12 and the upstream end of the second transfer conveyor 14 are close to each other. Delivery to the second transfer conveyor 14 is performed smoothly.
[0028]
As described above, in the end seal device 20, the pair of seal bodies 16, 18 are moved horizontally by the rollers 38, 38 disposed on the operating gears 36, 36 disposed on the left and right sides of the machine frame 10. Since the first guide members 32 and 32 corresponding to the first frame body 30 are directly engaged with each other, the horizontal movement mechanism of the seal bodies 16 and 18 can be simplified. Further, in the end seal device 20 of the embodiment, the air cylinders 65 and 66 for moving the pair of seal bodies 16 and 18 up and down are disposed below the transfer path of the tubular film 22. The dimensions can be set low.
[0029]
Here, for example, when both the sealing bodies 16 and 18 hold the tubular film 22 when the operation of the horizontal bag making and filling machine is stopped (emergency stop) due to trouble or the like, the release means When the timer starts counting and a predetermined time elapses, the solenoid valve is controlled so that the air cylinders 65 and 66 separate the seal bodies 16 and 18 from each other. Thereby, at the time of an emergency stop etc., sufficient heat can be supplied to the tubular film 22 being sealed by both the sealing bodies 16 and 18 to ensure a good sealing state, and the occurrence of defective products can be suppressed. it can.
[0030]
Next, when the height dimension of the article 24 is changed due to an order change or the like, the operation handle 73 is rotated in a required direction so that the adjustment screws 68 and 68 and the female screw members 69 and 69 are screwed together. The position of the second frame body 54 is changed in the vertical direction with respect to the first frame body 30, so that the height position where both the sealing bodies 16 and 18 sandwich the cylindrical film 22 is set in the height direction of the article 24. Can be set to the middle position. Therefore, the end seal position of the film with respect to the article 24 can always be in the middle of the height direction.
[0031]
[Example of change]
The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
1. As a guide part, it can replace with a guide material and can employ | adopt the long groove | channel, long hole, etc. in which a roller (engagement member) fits. Moreover, as an engaging member, the sliding body etc. which slide a guide part other than what rolls a guide part like a roller may be sufficient.
2. The guide means for supporting the second frame so as to be movable up and down with respect to the first frame is not limited to the pair of second guide members as in the embodiment, and may be a shaft, a rail, or the like. The side may be a second frame.
3. As a means for changing the arrangement position of the roller (engagement member) in the operating gear (rotating body), a long hole is formed in the operating gear along the radial direction, and at a desired position in the long hole. A configuration in which the roller is fixed using a bolt or the like may be employed.
4. Both air cylinders for operating the upper and lower seal bodies do not need to be connected on the bottom side as in the embodiment, and each air cylinder may be individually arranged on the connecting member.
5. Two connecting members are provided apart from each other in the vertical direction, and an air cylinder is provided for each connecting member, and the upper and lower seals are directly attached to the rods of the air cylinders or via support members as in the embodiments. You may connect.
6. A motor is employed as the operating means for the upper and lower seal bodies, a swing member such as an arm is provided on the output shaft of the motor, and a connecting rod is connected between the tip and the upper and lower seal bodies or corresponding support members. And the upper and lower seal bodies can be brought into contact with and separated from each other by rotating the motor forward and backward. And this motor may be arrange | positioned not in the support frame but in the machine frame.
7. The rotating body may be in the form of an arm or any other appropriate shape, and appropriate rotation transmission means (for example, gear, chain-sprocket, toothed belt-toothed pulley, etc.) ) To transmit the rotation from the drive means (servo motor). The drive means is not dedicated to the end seal device, but can also be used as drive means for other device portions in the horizontal bag making and filling machine. However, if the other device parts rotate at a constant speed, an appropriate non-constant speed rotation mechanism is adopted between the drive means and the end seal device to move the upper and lower seal bodies forward in the film transfer direction. Is set so as to be substantially the same speed as the film transfer speed, and the upper and lower seal bodies may sandwich the tubular film in that section.
Unlike the embodiment, when the rotating body is rotated by a mechanical inconstant speed rotating mechanism, a section in which the moving speed of the upper and lower seal bodies to the front side in the film transfer direction is substantially the same as the film transfer speed. Sometimes it cannot be changed. However, even in such a case, when the timing setting means is provided and the packaging speed is changed, the setting means changes the operation timing of the operation means so that both the sealing bodies sandwich the cylindrical film. In this state, the sealing section that moves at approximately the same speed as the film can be long, and a good package can be obtained.
[0032]
【The invention's effect】
As described above, according to the end seal device of the horizontal bag making and filling machine according to the first aspect of the invention, the pair of seal bodies are moved while moving the support frame supporting the pair of upper and lower seal bodies in the film transfer direction. Since it is configured to be opened and closed by the actuating means, the seal section in which the pair of seal bodies sandwich the tubular film can be set long, and a package body with a good seal state can be obtained. Further, since the support frame, that is, the pair of seal bodies is directly moved back and forth in the film transfer direction by the rotating body, a connecting member for connecting the rotating body and the supporting frame becomes unnecessary, and the configuration of the apparatus itself is simplified. Can do.
[0033]
In the end seal device according to the second aspect, since the height adjusting means for adjusting the height position at which the pair of seal bodies sandwich the cylindrical film is provided, the cylindrical film of the seal body is attached to the height of the article. The height position to be clamped can be changed and adjusted, and setting adjustment corresponding to a wide variety of articles can be made.
[0034]
In the end seal device according to the third aspect, since the operation means for opening and closing the pair of seal bodies is disposed below the transfer path of the tubular film, the device height is reduced and the device can be made compact. Further, in the end seal device according to the fourth aspect of the present invention, the seal section in which the pair of seal bodies sandwich and move the cylindrical film can be set and changed by the timing setting means. It becomes possible to set the seal section even longer. Further, in the end seal device according to the fifth aspect, since the air cylinder is employed as the operating means, the clamping force with respect to the tubular film in the seal section can be made constant. Moreover, the clamping force can be easily changed by adjusting the pressure of the compressed air supplied to the air cylinder. Furthermore, since the pair of air cylinders are connected on the bottom side, the apparatus itself can be made more compact than when the two air cylinders are separately attached to the support frame.
[0035]
In the end seal device according to the sixth aspect, when the pair of seal bodies holds the cylindrical film when the device is stopped, the both seal bodies are separated after the holding state is maintained for a predetermined time by the release means. Therefore, insufficient sealing can be prevented and a good sealing state can be obtained.
[Brief description of the drawings]
FIG. 1 is a side view showing a partially broken end seal device according to a preferred embodiment of the present invention.
FIG. 2 is a front view showing the end seal device according to the embodiment in a partially broken state.
FIG. 3 is a plan view of a principal part showing the end seal device according to the embodiment in a partially broken state.
[Explanation of symbols]
10 Airframe
16 First seal body (upper seal body)
18 Second seal body (lower seal body)
22 Cylindrical film
24 articles
30 First frame
32 1st guide material (guide part)
36 Actuating gear (Rotating body)
38 Roller (engagement member)
54 Second frame
56 Support frame
65 First air cylinder (actuating means)
66 Second air cylinder (actuating means)
74 Height adjustment means

Claims (5)

The cylindrical film (22) containing the article (24) is disposed above and below the transfer path of the cylindrical film (22), and the cylindrical film (22) is transferred with the transfer of the cylindrical film (22). In an end seal device of a horizontal bag making and filling machine that performs sealing before and after sandwiching the article (24) of the tubular film (22) by a pair of sealing bodies (16, 18) that move in the direction,
The pair of seal bodies (16, 18) are supported so as to be opened and closed, and a support frame (56) disposed on the machine frame (10) so as to be horizontally movable back and forth ,
An operating means (65, 66) disposed on the support frame (56) for opening and closing the pair of seal bodies (16, 18);
It said machine frame (10) rotatably provided respectively on the left and right of the rotating body engaging member (38) is disposed at an eccentric position (36, 36),
Wherein disposed on the left and right side frame that put the support frame (56), said engaging member (38) is engageable moved up and down guide portion (32, 32),
A servo motor (44) disposed in the machine casing (10) and capable of integrally rotating the pair of rotating bodies (36, 36) ;
Each of the operation means (65, 66) comprises a timing setting means for changing each operation timing for bringing the pair of seal bodies (16, 18) close to or away from each other.
<br/> be configured as capable of changing control section horizontally moves the transfer direction of the cylindrical film (22) in a state wherein the pair of sealing members (16, 18) is obtained by sandwiching the tubular film (22) An end seal device for a horizontal bag making and filling machine. The support frame (56) is capable of changing the position in the vertical direction with respect to the first frame (30) and the first frame (30), and supports the pair of seal bodies (16, 18). It is composed of two frame bodies (54), and by changing the position of the second frame body (54) with respect to the first frame body (30), the pair of seal bodies (16, 18) can form the tubular film (22). The end seal device for a horizontal type bag making and filling machine according to claim 1, further comprising a height adjusting means (74) for adjusting a height position of clamping.   The end seal device for a horizontal bag making and filling machine according to claim 1 or 2, wherein the operating means (65, 66) is disposed below the transfer path of the tubular film (22). Before Symbol Operation motion means is constituted by a pair of air cylinders to direct the head side in opposite directions to connect the bottom side to one another (65, 66), the rod (65a) of one of the air cylinder (65) It is connected to the upper seal body (16) and the rod (66a) of the other air cylinder (66) is connected to the lower seal body (18) to operate both air cylinders (65, 66) in synchronization. The end seal device for a horizontal bag making and filling machine according to any one of claims 1 to 3 , wherein the pair of seal bodies (16, 18) are opened and closed by doing so. When the apparatus is stopped while the pair of seal bodies (16, 18) sandwich the tubular film (22), a pair of seal bodies (16 The end seal device for a horizontal bag making and filling machine according to any one of claims 1 to 4 , further comprising release means for actuating the separators 18 and 18) apart from each other.

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