JP2013086839A - Horizontal bag-making filling/packaging machine, and method and device for controlling end seal thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal bag-making filling/packaging machine that smoothly performs works accompanying end sealing in a region by allowing the region to exist where the moving speed of the end-sealer in the horizontal direction is same as the carrying speed of a cylindrical package material before the end-sealer is closed, and to provide an end seal control device.SOLUTION: A section B where vertical end-sealers 11a, 11b move horizontally at the speed same as the cylindrical package material in the horizontal action, and a section where both end-sealers start approaching and stops in the midway till they close completely in the opening and closing actions of the end-sealers, can be set individually. A section B1 is synthesized where the vertical end-sealers, while keeping a constant interval, moves horizontally, in locus, at the same speed as the cylindrical package material till the vertical end-sealers start approaching and close completely by executing the move at the same time between both section of both end-sealers. An air removal device and a gusset device are operated in the section B1, allowing wrinkles and the displacement of products to be prevented.

Description

  The present invention drives a horizontal bag making and opening / closing operation by separate servo motors and combines the two operations to cause the end sealer to perform a box motion operation, as well as the end of the box motion operation. The present invention relates to an end seal control method and apparatus for a horizontal bag making filling and packaging machine that controls the operation of a sealer.

  Conventionally, a bag making and packaging machine that forms a bag from a continuous belt-shaped packaging material through a cylindrical packaging material, wraps the products that are sequentially conveyed in the bag, and sequentially manufactures the bag packaging body is known. As one of them, there is a horizontal type bag making and filling machine that manufactures a bag package by filling a product in a horizontal direction (horizontal direction) and performing product filling and vertical and horizontal sealing. In horizontal bag making and filling machines, both side edges of the strip-shaped packaging material running in the horizontal direction are sealed and molded into a cylindrical packaging material, and the product to be packaged is fed into the cylindrical packaging material, before and after the product. In this position, the cylindrical packaging material is end-sealed to produce a so-called pillow-wrapped bag package.

  As one form of the end seal device of the horizontal bag making filling and packaging machine, there is a pair of end sealers (with a built-in cutter blade) arranged with a cylindrical packaging material fed in the horizontal direction, and its end Some have a drive mechanism that moves the end sealer along a predetermined locus while maintaining the state where the seal surfaces of the sealer face each other. The upper and lower end sealers are moved forward by a fixed amount together with the cylindrical packaging material in a state where the predetermined position of the cylindrical packaging material is sandwiched from above and below by the drive mechanism. As a result, the tubular packaging material is heat-sealed during the sandwiched period at the part sandwiched between both end sealers to form a packaging bag, and the bag packaging body in which the product is contained in the packaging bag is formed. Manufactured. In the type in which the cutter blade is built in the end sealer, the cylindrical packaging material is cut at the position of the end seal and cut into individual bag packages.

  FIG. 6 is a schematic view showing an example of a horizontal bag making and packaging machine, in which (a) is a side view thereof and (b) is a plan view thereof. In the horizontal bag making and packaging machine 60, the strip-shaped packaging material Fw fed out from the raw roll portion Fr loaded on the winding shaft 61 is guided by several rotatable guide rolls 62, and is placed in a horizontal orientation. Is sent to a cylinder making device (former) 63 arranged in The band-shaped packaging material Fw is formed in a cylindrical packaging material Ft after being bent into a substantially cylindrical shape by the cylinder making device 63 and then subjected to vertical sealing by a center seal (vertical sealing) device 64 on both side edges. Is done. In the cylinder making device 63, the package P as a product conveyed in the lateral direction is sequentially fed into the cylindrical packaging material Ft. Cylindrical packaging material Ft is packaged inside by laterally sealing it with an end seal (horizontal sealing) device 65 in a transverse direction at a position where the package P is sandwiched before and after the feeding direction of the cylindrical packaging material Ft. A bag package Bp filled with the product B is manufactured. When the cutter device 66 is incorporated into the end seal device 65, the cutter device 66 cuts the cylindrical packaging material Ft in accordance with the lateral seal position, whereby the bag package Bp is cut out individually.

  The original roll portion Fr is fed out by a pinch roller type paper feed roller 69 provided at a position in the feed direction of the cylinder making device 63 and sandwiching the belt-like packaging material Fw. The center seal device 64 includes a pair of seal rollers 64a and 64b. On the upstream side of the packaging material feeding direction of the center seal device 64, a roller-type paper drawing roller which is composed of a pair of rollers 67a and 67b and feeds the overlapping edge portion of the packaging material bent in a cylindrical shape from both sides. 67 is provided. The end seal device 65 includes an upper end sealer 65a and a lower end sealer 65b that operate symmetrically in synchronization with each other. The horizontal bag making and packaging machine 60 includes gusset claws 68a to 68c that fold the side surfaces of the cylindrical packaging material Ft inward in accordance with the operations of the upper and lower end sealers 65a and 65b in relation to the end seal device 65. A gusset device 68 is provided.

  This type of end seal device is also referred to as a box motion type end seal device. As such a box motion type end seal device, for example, as disclosed in Patent Document 1, the end sealer is moved along a predetermined trajectory while maintaining a state where the seal surfaces of the end sealer are opposed to each other. A device using a groove cam as a drive mechanism is common. As the shape of the groove cam, a portion extending horizontally in the horizontal direction at the time of sealing is provided, so that the upper and lower end sealers sandwich the tubular packaging material and stay at a constant distance from the tubular packaging material. By moving forward in the horizontal direction, the sealing time can be increased.

  An example of an end sealer box motion trajectory is shown in FIG. The upper and lower end sealers 65a and 65b are operated symmetrically in synchronization, and the trajectories 70a and 70b are laterally moved at a constant distance from the cylindrical packaging material at a constant distance with the cylindrical packaging material sandwiched therebetween. In the sections 70c and 70d that move forward, the end sealers 65a ′ and 65b ′ end seal the tubular packaging material Ft.

  Further, without using the groove cam, for example, as disclosed in Patent Document 2, the operation of the end sealer is performed separately in the horizontal direction, that is, the operation in the conveying direction of the cylindrical packaging material and the opening and closing operation of the end sealer. In some cases, the trajectory of the movement of the end sealer is changed to a box motion. In the case of a method in which the end sealer's horizontal movement operation and opening / closing operation are performed by separate motors, various trajectories can be synthesized by changing the output pattern of both motors, and the optimum end sealer box motion according to the application Can be realized.

  FIG. 8 shows a locus 80 formed by combining a horizontal movement operation 83 that reciprocates the end sealer in the horizontal direction and an opening / closing operation 84 that reciprocates in the vertical direction. The horizontal movement operation 83 is an operation of reciprocating from the intermediate position to the most advanced position in one cycle, from there to the most advanced position, and then returning to the intermediate position again. The opening / closing operation 84 is an operation that reaches the fully closed position from the fully open position in one cycle and returns to the fully open position again. By combining these operations 83 and 84, when both the end sealers 65a and 65b are in the fully closed position, they move forward at the same speed as the feed rate of the tubular packaging material Ft while sandwiching the tubular packaging material Ft. The trajectories 81a and 81b are obtained. When the trajectories 81a and 81b are in positions other than the fully closed positions, arc-shaped trajectories 82a and 82b that are separated from the ends of the trajectories 81a and 81b and return to the start ends of the trajectories 81a and 81b are obtained.

  By the way, in addition to the gusset device, the box motion type end sealer may be provided with an attachment device such as an air venting device that performs an operation before the end seal is applied to the cylindrical packaging material. In order to reduce the air (air) remaining inside the manufactured packaging body as much as possible, the air venting device presses the cylindrical packaging material from above with a cushioning member such as a sponge before end sealing. This is a device that pushes out (air) and maintains that state until end sealing is performed. The air bleeder is attached to a lifting block to which the upper end sealer is attached, and moves up and down in the horizontal direction (lateral direction) and moves up and down in the opening and closing direction (up and down direction) along with the operation of the upper end sealer.

  The gusset device is a device that forms a fold line (gusset) folded inward on the side surface of the cylindrical packaging material in the vicinity of the end seal portion. The gusset is formed by pushing the side surface of the cylindrical packaging material inward with a gusset claw before applying the end seal. Therefore, the gusset claw is configured to reciprocate from the side with respect to the cylindrical packaging material in accordance with the operation of the end sealer of the above-described end seal device (see, for example, Patent Document 3). The gusset device is configured so that when the end sealer advances and retreats in the horizontal direction, the gusset device moves horizontally along with the advance and retreat in the horizontal direction.

JP 2009-91033 A JP 07-291234 A JP 2006-168895 A

  In an attached device such as an air bleed device or a gusset device for performing an operation before applying an end seal to a cylindrical packaging material related to an end seal device, a cylindrical shape that is continuously conveyed laterally at a predetermined speed. It has a member that performs an operation of pressing or folding in contact with the packaging material. Therefore, these operations of the attachment device are performed when the relative positions of these members and the end sealer do not change, that is, when the moving speed of the end sealer in the horizontal direction is equal to the conveying speed of the cylindrical packaging material. It is desirable to do.

  However, in the box motion using a general groove cam, the end sealer is closed with the upper and lower end sealers closed in the horizontal movement section at the same speed as the transfer speed of the cylindrical packaging material of the end sealer. It is a section. Therefore, the operations of the air venting device and the gusset device are performed in a non-constant velocity region that approximates the conveyance speed of the cylindrical packaging material prior to the constant velocity horizontal movement section. Strictly speaking, the operation is performed at a non-constant speed as compared with the conveyance speed of the cylindrical packaging material, which adds stress to the conveyance of the cylindrical packaging material, and the stable conveyance of the cylindrical packaging material. From the point of view, it is not desirable. Also, packaging defects such as wrinkles on the end seal part due to contact with the cylindrical packaging material at non-constant speed, or misalignment of the objects to be packaged inside the cylindrical packaging material It becomes the factor of.

Therefore, there is an area where the end sealer is moving at a speed that is completely equal to the conveyance speed of the cylindrical packaging material before the end sealer is closed, and the work associated with the end seal is performed in the area. There is a problem to be solved in terms of enabling it to be done.
An object of the present invention is to perform the horizontal movement operation and the opening / closing operation of the end sealer separately, and the accompanying device such as an air bleeding device or a gusset device has a moving speed in the horizontal direction of the end sealer equal to a conveying speed of the cylindrical packaging material, etc. The present invention relates to a horizontal bag making filling and packaging machine in which an end sealer is controlled so that the work can be performed at high speed, and an end seal control method and apparatus for a horizontal bag making filling and packaging machine that controls the operation of the end sealer. Is to provide.

  In order to solve the above-described problems, a horizontal bag making and filling machine according to the present invention includes an upper and lower end sealers that end seals the cylindrical packaging material with the cylindrical packaging material sandwiched between the upper and lower sides, and the conveyance of the cylindrical packaging material. An end sealer control device that gives a combined operation of the upper and lower end sealers by separately performing a horizontal operation parallel to the direction and an opening and closing operation to the cylindrical packaging material, and the operations of the upper and lower end sealers Corresponding to the tubular packaging material, and an attachment device for performing an incidental operation on the tubular packaging material, wherein the end sealer control device is configured such that the upper and lower end sealers are connected to the tubular packaging material. A section that moves horizontally at a constant speed and a section where the upper and lower end sealers start to approach each other and stop halfway can be set, and the upper and lower end sealers can be set respectively. The section that stops in the middle is set in the section that moves horizontally, and the attachment device moves the upper and lower end sealers horizontally at the same speed as the cylindrical packaging material while maintaining the constant interval. An additional operation is performed on the cylindrical packaging material.

  Further, the end sealer control method of the horizontal bag making filling and packaging machine according to the present invention separately performs the horizontal operation of the upper and lower end sealers parallel to the conveying direction of the cylindrical packaging material and the opening and closing operation to the cylindrical packaging material. An end sealer control method for a horizontal bag making filling and packaging machine that combines both operations to form the operation of the upper and lower end sealers, wherein the upper and lower end sealers are the same as the cylindrical packaging material, etc. It is possible to set a section that moves horizontally at a speed and a section that stops halfway between when the upper and lower end sealers start approaching each other and completely closes, and the half stop for the upper and lower end sealers is possible. By setting the section within the horizontally moving section, the upper and lower end sealers start to approach each other and are completely closed while the upper and lower end sealers maintain a constant interval. It is characterized by synthesizing a locus moves horizontally with Paneling and constant speed.

  In addition, the end sealer control device of the horizontal bag making filling and packaging machine according to the present invention separately performs the horizontal operation of the upper and lower end sealers parallel to the conveying direction of the cylindrical packaging material and the opening and closing operation to the cylindrical packaging material. An end sealer control device for a horizontal bag making and packaging machine that combines the operations to form the operations of the upper and lower end sealers, wherein the upper and lower end sealers are the same as the cylindrical packaging material, etc. A section that horizontally moves at high speed and a section that stops halfway between the time when the upper and lower end sealers start approaching and completely close can be set, and the middle stop for the upper and lower end sealers can be set respectively. The section to be set is set within the section that moves horizontally.

  According to the horizontal bag filling and packaging machine and its end sealer control method and apparatus, the horizontal movement of the upper and lower end sealers is such that both end sealers move horizontally at the same speed as the cylindrical packaging material, and the upper and lower end sealers. Regarding the opening and closing operation of the sealer, it is possible to set the sections where both end sealers start approaching each other and stop halfway between them, and both end sealers can be set for both upper and lower end sealers. By setting the section that stops halfway in the section that moves horizontally, the upper and lower end sealers keep approaching each other and the upper and lower end sealers remain at a certain interval until they are completely closed. A trajectory that moves horizontally at a constant speed is synthesized, and it is possible to perform ancillary work related to the end sealer by using the section that follows the synthesized trajectory. .

  In this horizontal bag making filling and packaging machine and its end sealer control method and apparatus, the horizontal movement operation of the upper and lower end sealers parallel to the conveying direction of the cylindrical packaging material and the opening and closing operation to the cylindrical packaging material Are performed by separate motors, and the operations of the upper and lower end sealers can be formed by combining the two operations according to the output patterns of the two motors. As the motor, for example, by using a servo motor with high controllability and flexibility, it is possible to accurately set the section that moves horizontally and the section that stops in the middle of the closing operation.

  In this horizontal bag making filling and packaging machine and its end sealer control method and apparatus, the upper and lower end sealers perform accompanying work while horizontally moving at a constant speed with the cylindrical packaging material while maintaining the predetermined interval. An apparatus is an air venting device that operates to push out air present in the tubular wrapping material in which the end sealer applies the end seal to form a packaging bag, and the end sealer includes the end seal It can be set as at least one apparatus among the gusset apparatus which forms a fold in the side part of the said cylindrical packaging material which intends to form a packaging bag. While the upper and lower end sealers move horizontally at the same speed as the cylindrical packaging material while maintaining a certain distance, the end sealer exists inside the cylindrical packaging material that is intended to form an end seal to form a packaging bag. By using the state that the end sealer is not completely closed by performing the additional work of air bleed that operates to extrude air or gusset folding that forms a fold on the side of such a cylindrical packaging material, It is possible to smoothly extrude the air existing inside the cylindrical packaging material and to fold the packaging material without stress.

  Since the horizontal bag making and packaging machine and the end sealer control method and apparatus according to the present invention are configured as described above, the end seal device is arranged in front of the end seal section where the end seal is applied to the cylindrical packaging material. By providing a section where the sealer moves horizontally at the same speed as the packaging material conveyance speed while maintaining a certain distance, the end sealer is not completely closed, such as when air is released or the gusset claw is moved. In addition, it is possible to perform the incidental work, which is ideally performed in contact with the packaging material in a state synchronized with the conveyance speed of the packaging material, in the ideal state. Therefore, in the accompanying work, since it is performed by contacting the cylindrical packaging material moving at a constant speed, there is no stress on the conveyance of the cylindrical packaging material, and the end seal part is wrinkled, or It is possible to reduce the cause of packaging defects such as a positional shift of an article to be packaged inside the cylindrical packaging material.

It is a figure which shows one Example of the horizontal type bag making filling packaging machine by this invention. It is a figure explaining operation | movement of the end seal apparatus with which the horizontal type bag making filling packaging machine shown in FIG. 1 is equipped. It is a figure which shows an example of the end sealer timing setting screen of the end seal apparatus with which the horizontal type bag making filling packaging machine shown in FIG. 1 is equipped. It is a figure which shows an example of the air bleeding apparatus attached to the horizontal type bag making filling packaging machine by this invention. It is a figure which shows an example of the gusset apparatus attached to the horizontal type bag making filling packaging machine by this invention. It is a figure which shows an example of the conventional horizontal type bag making filling packaging machine. It is a figure explaining the locus | trajectory of the end seal apparatus with which the horizontal type bag making filling packaging machine shown in FIG. 6 is equipped. It is a figure explaining the synthesis | combination of the action | operation of the end seal apparatus with which the horizontal type bag making filling packaging machine shown in FIG. 6 is equipped.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a horizontal bag making and filling machine and its end seal control device according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view showing an embodiment of a horizontal bag making filling and packaging machine according to the present invention, in which (a) in the center is a side view of an end seal device provided in the horizontal bag making filling and packaging machine, and (b) is (a). (C) is a right front view of (a). The basic configuration of a horizontal bag making filling and packaging machine including an end seal device is the same as that shown in FIG.

  An end seal device 10 of a horizontal bag making filling and packaging machine shown in FIG. 1 includes upper and lower end sealers 11a and 11b arranged to face each other in the vertical direction. The end sealers 11a and 11b are driven in synchronism with the upper and lower opening and closing directions. When the end sealers 11a and 11b are closed most, the cylindrical packaging material is sandwiched between them in a pressurized state, and the sandwiched packaging material is heated and welded. Thus, an end seal is applied as a heat seal. A cutter 12a is built in the upper end sealer 11a, and a groove 12b into which the cutter 12a enters is formed in the end sealer 11b at a position corresponding to the cutter 12a. The upper end sealer 11a is provided with a cutter driving device 13 that projects the cutter 12a toward the lower end sealer 11b. The cutter driving device 13 is composed of, for example, a known air actuator, and operates in accordance with the operation of the upper and lower end sealers 11a and 11b, that is, the closing operation of both the end sealers 11a and 11b, and lowers the cutter 12a. It protrudes toward the side end sealer 11b and cuts the cylindrical packaging material Ft.

  The end sealers 11 a and 11 b are arranged to be slidable in the vertical direction with respect to the support block 15. That is, the support block 15 holds the slide shafts 16a and 16b so as to be slidable in the vertical direction at both ends in the left-right direction, and both ends of the slide shafts 16a and 16b are connected by the end block 17a on the upper side. The lower side is connected by an end block 17b. The upper end sealer 11a and the cutter driving device 13 are respectively disposed on the lower side and the upper side in the upper end block 17a. An intermediate block 18 is slidably supported on the slide shafts 16 a and 16 b in the intermediate region in the longitudinal direction, and a lower end sealer 11 b is attached to the upper side of the intermediate block 18.

  The support block 15 is provided with a servo motor 19 as a drive mechanism for opening and closing the end sealers 11a and 11b in the vertical direction. A lever 21 is attached to the output shaft 20 of the servo motor 19 for opening and closing. One end of the lever 21 is swingably connected to the upper bracket 23a via an upper link 22a. A bracket 23 a is connected to the intermediate block 18. Further, the other end portion of the lever 21 is swingably connected to the lower bracket 23b via the lower link 22b, and the lower bracket 23b is connected to the lower end block 17b. Therefore, when the servo motor 19 is driven and the output shaft 20 is rotated, the upper end sealer 11a is connected via the lower link 22b, the lower end block 17b, the slide shafts 16a and 16b, and the upper end block 17a. Is opened and closed, and the lower end sealer 11b is opened and closed in synchronization with the upper end sealer 11a via the upper link 22a and the intermediate block 18.

  The end seal device 10 is slidable in the front-rear direction (paper feeding direction of the packaging material) perpendicular to the opening / closing direction of the end sealers 11a and 11b. That is, the support block 15 of the end seal device 10 is slidably supported by the front and rear guides 25a and 25b supported by the fixed frame of the machine on the left and right sides thereof. As shown in FIG. 1A, the fixed frame is provided with a servo motor 26 as a drive mechanism for front and rear drive, and an arm 28 is attached to an output shaft 27 of the servo motor 26. The tip of the arm 28 and the bracket 30 of the support block 15 (which may be the servo motor 19 for driving in the vertical direction) are connected via a link 29. Therefore, when the front / rear drive servomotor 26 is driven, the support block 15 is guided by the front / rear guides 25a and 25b via the arm 28, the link 29 and the bracket 30 and driven in the front / rear direction.

  A servo motor 19 for vertically driving the upper and lower end sealers 11a and 11b and a servo motor 26 for driving the end seal device 10 in the front-rear direction together with the support block 15 are controlled by an end seal control device of a horizontal bag making filling and packaging machine. Each of the upper and lower end sealers 11a and 11b can be controlled separately (independently) as an opening / closing operation of the upper and lower end sealers 11a and 11b to the cylindrical packaging material and a horizontal operation parallel to the conveying direction of the cylindrical packaging material. Specifically, a section in which the upper and lower end sealers 11 a and 11 b move horizontally with the cylindrical packaging material at a constant speed can be set by controlling the front and rear drive servomotor 26, and by controlling the opening and closing servomotor 19. It is possible to set a section in which the upper and lower end sealers 11a and 11b stop halfway before they approach each other and completely close.

  FIG. 2 illustrates the operation of the end seal device provided in the horizontal bag making and filling machine shown in FIG. (A) shows a conventional control method using a motor and a cam. In the figure, A is a section in which the section FS that is the same as the film (packaging material) conveyance speed is the same as the end seal implementation section ES, and therefore, an accompanying work section (work section before end seal) performed by the attachment device. The SS must be performed in the section C that exhibits a speed asynchronous with the film transport speed.

  On the other hand, FIG. 2B illustrates the operation of the end seal device according to the present invention. Horizontal movement and opening / closing of the upper and lower end sealers 11a and 11b are controlled separately by the opening / closing servo motor 19 and the front / rear driving servo motor 26. That is, the section B in which the horizontal movement of the end sealers 11a and 11b is performed at the same speed as the conveyance speed of the packaging material is actually preceded by the end seal implementation section B2 in which the end sealers 11a and 11b are completely closed. And the end sealers 11a and 11b are controlled so as to consist of a section B1 which keeps a constant interval until the end sealers 11a and 11b start approaching each other and are completely closed. Therefore, in the combination of horizontal movement and opening / closing of the upper and lower end sealers 11a and 11b, the section B1 can be applied to the accompanying work section (work section before end seal) SS performed by the attachment device. In this section B1, the member performing the accompanying work is moving at the same speed as the conveyance speed of the packaging material, so that the conventional non-synchronized member does not apply stress to the packaging material, and wrinkles. Occurrence of the product and displacement of the product will not occur.

  FIG. 3 shows an example of an end sealer timing setting screen of the end seal device provided in the horizontal bag making filling and packaging machine shown in FIG. When the closing operation 1 of the end sealers 11a and 11b is completed, a film (packaging material) synchronization period (that is, a period in which the movement speed of the end sealer is synchronized with the conveyance speed of the packaging material) is started, and the film synchronization period ends. Thus, the opening operation of the end sealers 11a and 11b is started. In the film synchronization period, a closing stop section for stopping the closing operation for a certain time from the start time is set, and in the closing operation stopping section and the subsequent closing operation 2, accompanying work such as air bleeding or gusset is performed. Is called. After the accompanying work is completed, after the end sealers 11a and 11b are completely closed, the heat sealing section is started. As shown in the figure, the closing operation 1, the film (wrapping material) synchronization period, the closing stop section, the closing operation 2, the heat sealing section, and the opening operation section are made easy for the operator to recognize along the time axis. The start and end timings can be set numerically (corresponding to the time in one cycle). In this example, the air venting operation is primarily controlled by the operation of the upper end sealer 11a, so it is not set as the air venting section. In the case of driving, it is possible to set as an air bleeding section.

  FIG. 4 is a view showing an example of an air bleeding device attached to the horizontal bag making and filling machine according to the present invention. This air venting device is equivalent to a conventional air venting device. As shown in FIG. 4, the air bleeding unit (air bleeding device) 40 is provided in association with an upper end block (upper lifting block) 17a provided with the upper end sealer 11a. In the air vent unit 40, a sponge member 42 is attached to the lower surface of an attachment member 41 provided on the upper end block 17a. The sponge member 42 has a cylindrical shape in which the upper end sealer 11a performs end sealing and pushes the cylindrical package body that the bag packaging body Bp is to be manufactured correctly, and the internal air is sandwiched between the end sealers 11a and 11b. By passing the constricted part of the package Ft, air is to be removed.

  In the air bleeding unit 40, the sponge member 42 is connected to the end sealers 11a and 11b in the closing stop section and the subsequent closing operation section B1 in the film (packaging material) synchronization period B shown in FIGS. The cylindrical packaging material is pressed in synchronism with the air, and air can be smoothly vented without causing wrinkles of the packaging material or positional deviation of the product due to a speed difference from the packaging material.

  FIG. 5 is a view showing an example of a gusset device attached to the horizontal bag making and filling machine according to the present invention. The gusset device 50 is illustrated as being disposed on one side of the packaging material, and a similar gusset device 50 is also disposed on the opposite side across the packaging material, and usually both gusset devices 50, 50. Operate synchronously.

  The gusset device 50 is connected to the upper end sealer 11a and operates in synchronization with the movement of the upper end sealer 11a. The gusset device 50 includes a forward / backward moving plate 51 connected to the upper end sealer 11a, and gusset claws 52, 52 provided at the end of the forward / backward moving plate 51 on the packaging material side so as to be able to advance and retract toward the packaging material side. And a connection block 53 attached to the end of the forward / reverse plate 51 on the side opposite to the packaging material, and an air actuator 54 that is supported by the connection block 53 and includes an air cylinder connected to the gusset claws 52, 52. ing.

In the gusset device 50, the gusset claws 52, 52 are connected to the end sealers 11a, 11b in the closing stop section and the subsequent closing operation section B1 in the film (wrapping material) synchronization period B shown in FIGS. While moving in synchronization with 11b, the side part of the cylindrical packaging material is folded, without causing a shift due to the speed difference from the packaging material, without causing wrinkles of the packaging material or product positional displacement, The gusset of the packaging material can be smoothly folded.
As an attachment device for the end seal device 10, the air vent unit 40 shown in FIG. 4 and the gusset device 50 shown in FIG. It is clear that it is good.

10 End seal device 11a Upper end sealer 11b Lower end sealer 12a Cutter 12b Groove 13 Cutter drive device 15 Support block 16a, 16b Slide shaft 17a, 17b End block 18 Intermediate block 19 Opening / closing servo motor 20 Output shaft 21 Lever 22a Upper Link 22b Lower link 23a Upper bracket 23b Lower bracket 25a, 25b Front / rear guide 26 Front / rear drive servomotor 27 Output shaft 28 Arm 29 Link 30 Bracket 40 Air bleeding unit 41 Mounting member 42 Sponge member 50 Gusset device 51 Forward / backward movement Plate 52 Gusseted Claw 53 Connecting Block 54 Air Actuator Fw Band Wrapping Material Ft Tubular Wrapping Material Fr Raw Material Roll Portion Bp Bag Wrapping Body FS Section E Which Is Same as Film (Packaging Material) Conveying Speed End seal operation section SS End seal pre-operation section B Section where the end sealer is horizontally moved at the same speed as the conveying speed of the packaging material B1 A constant interval was maintained until the end sealers started to approach each other and completely closed. Section B2 End seal implementation section

Claims (9)

Upper and lower end sealers that end seal the tubular packaging material with the tubular packaging material sandwiched between the upper and lower sides, a horizontal operation parallel to the conveying direction of the tubular packaging material, and an opening / closing operation to the tubular packaging material. An end sealer control device that gives a combined operation of the upper and lower end sealers by performing separately, and an attachment device that performs incidental operations on the cylindrical packaging material in response to the operations of the upper and lower end sealers In the horizontal bag making and filling machine equipped,
The end sealer control unit includes a section in which the upper and lower end sealers move horizontally with the cylindrical packaging material at a constant speed, and a section in which the upper and lower end sealers stop halfway between starting approaching each other and closing completely. Can be set respectively, and set the section that stops halfway for the upper and lower end sealers within the section that moves horizontally,
The attachment device performs a side operation on the cylindrical packaging material while the upper and lower end sealers horizontally move at a constant speed with the cylindrical packaging material while maintaining the predetermined interval. Bag making filling and packaging machine.   The end sealer control device performs the horizontal movement operation of the upper and lower end sealers parallel to the conveying direction of the cylindrical packaging material and the opening / closing operation to the cylindrical packaging material by separate motors, and 2. The horizontal bag making and filling machine according to claim 1, wherein the operation of the end sealer is formed by synthesizing both the operations according to the output patterns of the two motors.   The attachment device is an air venting device that operates to push out air existing in the cylindrical packaging material in which the end sealer applies the end seal to form a packaging bag, and the end sealer is 3. The horizontal type according to claim 1, wherein the horizontal type is a gusset device for forming a fold in a side portion of the cylindrical packaging material to be end-sealed to form a packaging bag. Bag making filling and packaging machine. By separately performing the horizontal movement of the upper and lower end sealers in parallel with the conveying direction of the cylindrical packaging material and the opening and closing movement to the cylindrical packaging material, both the movements are combined to perform the movement of the upper and lower end sealers. In the end sealer control method of the horizontal bag making filling packaging machine that is forming,
A section where the upper and lower end sealers move horizontally with the cylindrical packaging material at a constant speed and a section where the upper and lower end sealers start to approach each other and completely stop can be set. Yes,
By setting the section that stops halfway for the upper and lower end sealers within the section that moves horizontally, the upper and lower end sealers are fixed until the upper and lower end sealers start approaching each other and are completely closed. An end sealer control method for a horizontal bag making filling and packaging machine, wherein a trajectory horizontally moving at a constant speed is synthesized with the cylindrical packaging material while maintaining an interval.   The horizontal movement operation of the upper and lower end sealers parallel to the conveying direction of the tubular packaging material and the opening and closing operation to the tubular packaging material are performed by separate motors, and the operations of the upper and lower end sealers are performed. 5. The end sealer control method for a horizontal bag making filling and packaging machine according to claim 4, wherein both operations according to respective output patterns of both motors are synthesized and formed. While the upper and lower end sealers move horizontally with the cylindrical packaging material at a constant speed while maintaining the predetermined distance, the end sealer applies the end seal to form a packaging bag. A bleeder that operates to push out air present in the material, and a gusset fold that forms a fold on the side of the cylindrical wrapping material in which the end sealer applies the end seal to form a packaging bag 6. The end sealer control method for a horizontal bag making filling and packaging machine according to claim 4, wherein at least one of the operations is applied. By separately performing the horizontal movement of the upper and lower end sealers in parallel with the conveying direction of the cylindrical packaging material and the opening and closing movement to the cylindrical packaging material, both the movements are combined to perform the movement of the upper and lower end sealers. In the end sealer control device of the horizontal bag making filling and packaging machine that is forming,
A section where the upper and lower end sealers move horizontally with the cylindrical packaging material at a constant speed and a section where the upper and lower end sealers start to approach each other and completely stop can be set. And an end sealer control device for a horizontal bag making filling and packaging machine, wherein the half stop section of the upper and lower end sealers is set within the horizontally moving section.   The horizontal movement operation of the upper and lower end sealers parallel to the conveying direction of the tubular packaging material and the opening and closing operation to the tubular packaging material are performed by separate motors, and the operations of the upper and lower end sealers are performed. 8. The end sealer control device for a horizontal bag making filling and packaging machine according to claim 7, wherein both operations according to respective output patterns of both motors are synthesized and formed. While the upper and lower end sealers move horizontally with the cylindrical packaging material at a constant speed while maintaining the predetermined distance, the end sealer applies the end seal to form a packaging bag. An air venting device that operates to push out air existing inside the material, and a gusset device that forms a fold on the side of the cylindrical packaging material in which the end sealer applies the end seal to form a packaging bag 9. The end sealer control device for a horizontal bag making filling and packaging machine according to claim 7, wherein an incidental operation by at least one of the devices is applied.

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