JP2013245012A - Vertical type bag making charging and packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical type bag making, charging and packaging machine, capable of decreasing cracks and chipping of an article to be packaged by shortening a falling distance of the article to be packaged.SOLUTION: A vertical type bag making, charging and packaging machine 1 includes: a running passage 5 on which a film f runs; a vertical bag making tube 2 the inside of which an article to be packaged falls down; an ultrasonic type longitudinal sealer 3 for sealing in the vertical direction the film f; a horizontal sealer 4 for sealing it in the horizontal direction; a first feeding apparatus 15 for feeding the film f to be supplied to the tube 2 at the upstream side of the running passage 5 ; a second feeding apparatus 9 for feeding the film f downward along the bag making tube 2; and a controlling apparatus 11 for controlling a feeding force of the film f so that the feeding force of the film f becomes smaller than the second feeding apparatus 9 has against the first feeding apparatus 15.

Description

  The present invention relates to a vertical bag making and filling machine for filling a bag body with an article to be packaged.

  The vertical bag making and filling and packaging machine drops a packaged article into a vertical cylindrical bag making tube, and fills and packages the packaged article in a bottom-sealed cylindrical film. When the packaged item falls and collides with the bottom surface of the bag body, the lateral sealer part bite due to the rising of the packaged item, pinholes occur on the bottom surface of the bag body, the packaged item itself Since it sometimes cracked or chipped, the quality was reduced.

  A vertical bag-filling and packaging method for shortening the fall distance of an article to be packaged is known (see, for example, Patent Document 1). In the method of Patent Document 1, the vertical seal is an ultrasonic type, and the horizontal sealer is movable up and down to a position corresponding to the bag length. However, even if the method as disclosed in Patent Document 1 is adopted, since the feeding device for feeding the film downward is long in the vertical direction, the drop distance requires a length corresponding to the length of the feeding device. The fall distance was not so short.

Japanese Patent Laid-Open No. 1-124508

  The present invention has been made in consideration of the above prior art, and an object of the present invention is to provide a vertical bag-filling and packaging machine that can reduce the fall distance of a packaged object and reduce cracks and chips of the packaged object. And

  In order to achieve the above-mentioned object, the present invention provides a traveling path along which a film to be bagged travels, and a vertical manufacturing process that is disposed in the traveling path and in which the packaging object falls inside when the packaging object is filled. In order to make the bag tube and the film fed out in a cylindrical shape along the outer periphery of the bag-making tube into a bag body, an ultrasonic vertical sealer that seals the film in the vertical direction and a horizontal seal A horizontal sealer, a first unwinding device for unwinding the film in the upstream travel path supplied to the bag making tube, and driving in conjunction with the first unwinding device, along the bag making tube A second unwinding device for unwinding the film downward, and the unwinding force of the film of the second unwinding device with respect to the first unwinding device is reduced. Providing vertical bag filling packaging machine and a control device for controlling the Ri out force.

  Preferably, the first feeding device includes a first feeding pulley that feeds the film in a feeding direction, and a first drive source that rotates the first feeding pulley, and the first feeding device. The travel path upstream is provided with a pass roller on which the film is wound and fed, and the pass roller is connected to the first drive source.

  Preferably, the travel path between the bag making tube and the first feeding device is provided with an introduction roller for winding and feeding the film, and the introduction roller is connected to the first drive source. Yes.

  According to the present invention, it is possible to reduce the fall distance of the packaged object and reduce cracks and chips of the packaged object. In addition, by connecting the pass roller and the introduction roller to the first drive source, even if the film f is accelerated or decelerated while traveling, the film f slips or snakes, and sagging or wrinkles occur in the film f. Can be reduced.

It is a schematic perspective view of the vertical bag making filling packaging machine concerning the present invention. 1 is a schematic side view of a vertical bag making filling and packaging machine according to the present invention.

  A vertical bag making and filling machine 1 according to the present invention includes a bag making tube 2, a vertical sealer 3, and a horizontal sealer 4. The bag making tube 2 is formed in a vertical cylindrical shape. Above the bag-making tube 2, a hopper (not shown) for loading an article to be packaged is provided. The article to be packaged is put into the bag making tube 2 through the hopper and falls inside the bag making tube 2 (arrow A).

  A former 6 is provided on the upper outer side of the bag making tube 2. The former 6 surrounds the bag making tube 2 and guides the belt-like film f into a cylindrical shape. The film f travels along the travel path 5 from the reel 7 via a plurality of rollers 8 a to 8 g and is fed to the former 6.

  A first feeding device 15 for feeding the film f is disposed on the upstream side of the former 6. The first feeding device 15 has an endless first feeding belt 16. The first feeding belt 16 feeds the film f along the traveling path 5 while adsorbing the film f by the first suction unit 17. The operation of the first feeding belt 16 is performed by rotating the first feeding pulley 20 by driving the first feeding motor 19 that is a first driving source. In the travel route 5, the number of rollers for feeding the film f can be changed as appropriate. While traveling along the travel route 5, the date and the like are attached to the film f by the printing device 22. The film f is formed in a substantially cylindrical shape so as to cover the outer periphery of the bag-making tube 2 by the former 6, and both side edges thereof are overlapped with each other in the shape of a palm.

  A vertical sealer 3 is provided below the former 6. The vertical sealer 3 is an ultrasonic type. The vertical sealer 3 is bonded by heat sealing in the vertical direction by sandwiching both side edges of the film f overlapped in a palm shape. The bag making tube 2 is provided with a second feeding device 9 as a feeding means for the film f. Similar to the first feeding device 15, the second feeding device 9 has an endless second feeding belt 10. The second feeding belt 10 is fed downward along the filling tube 2 while adsorbing the film f by the second suction unit 18. The operation of the second feeding belt 10 is performed by rotating the second feeding pulley 14 by driving a second feeding motor 13 that is a second driving source.

  A horizontal sealer 4 is provided below the bag-making tube 2. The horizontal sealer 4 has a pair of heater blocks 4a and 4b. These heater blocks 4a and 4b are opened and closed by being separated from each other in the horizontal direction. The cylindrical film f fed out of the bag making tube 2 is sandwiched between the heater blocks 4a and 4b and sealed in the lateral direction. The horizontal sealer 4 is opened and closed by driving a motor (not shown).

  Either one of the heater blocks 4a or 4b is provided with a cutter 4c, and the other is formed with a groove for receiving the cutter. After sealing the film f in the horizontal direction, the bag body 12 is manufactured by cutting with a cutter. By sequentially feeding the film f and repeating the sealing with the heater blocks 4a and 4b and the cutting with the cutter 4c, the bags 12 are manufactured one after another. At this time, the lower side of the cut portion is formed as the bag body 12, and the upper side is formed as the bottom of the bag body 12.

  The first feeding motor 19 and the second feeding motor 13 described above are each connected to the control device 11. Using this control device 11, the rotational speeds of the motors 19 and 13 can be controlled. That is, using the control device 11, the feeding amount of the film f can be changed for each of the feeding devices 15 and 9. The first and second feeding devices 9 and 15 are driven in conjunction with each other. As a result, the film f is fed out at the same timing, and the slack and meandering of the film f due to the timing shift are reduced.

  In the vertical bag making and filling machine 1 according to the present invention, the feeding force of the film f included in the second feeding device 9 is smaller than that of the first feeding device 15. Although this feeding force can be controlled by the respective motors 19 and 13, the feeding force of the second feeding device 9 may be small, so that the second feeding device 9 is used as an auxiliary of the first feeding device 15. It can be positioned, so a small one can be used. Combined with the fact that the vertical sealer 3 described above is of the ultrasonic type, the length of the bag making tube 2 below the former 6 can be shortened. For this reason, it is possible to reduce cracking and chipping of the package object. Moreover, since the dropping time can be reduced, the manufacturing time of the bag body 12 can be shortened. In addition, when the fall distance is short, the rising is reduced when the package is powder, and the package is less likely to be bitten by the horizontal sealer 4. Moreover, being able to shorten the fall distance contributes to weight saving and space saving, and replacement of the bag making tube 2 is facilitated.

Here, in order to generate a certain tension on the film f descending along the bag making tube 2, the second feeding device 9 is controlled to feed out the film f earlier with a weaker feeding force than the first feeding device 15. Has been. Since the amount of the film f that is actually fed is determined by controlling the position of the first feeding motor 19, the speed of the film f that is actually fed is higher than the speed of the film f that is to be fed by the second feeding device 9. The film f becomes slow, and a constant tension is generated in the film f due to the speed difference.
In this embodiment, the speed of the second feeding motor 13 is controlled so that even if there is a difference between the feeding amount of the film f to be fed and the amount of the film f that is actually fed, the second suction motor 13 is controlled. If the suction force of the unit 18 is weakened by adjusting a regulator or the like so that the film f slides from the second feeding belt, position control may be performed.

  In the traveling path 5 described above, the film f is fed out while being wound around the plurality of rollers 8a to 8g. The upstream rollers 8a and 8b are driven rollers. Thereafter, the film f travels through the dancer roller 8c and the pass rollers 8d to 8f. After passing the pass roller 8f, it passes through the first feeding device 15 and is fed from the introduction roller 8g to the former 6.

  Here, the pass rollers 8 d to 8 f rotate in synchronization with the first feed pulley 20. That is, the pass rollers 8 d to 8 f located between the dancer roller 8 c and the first feeding device 15 are connected to the first feeding motor 19. Specifically, the rotation shafts of the first feeding motor 19 and the pass rollers 8d to 8f are connected to rotate synchronously by a rotation transmission body 21 such as a belt or a wire. Thereby, even if the film f is accelerated or decelerated while traveling, it is possible to reduce the occurrence of slack or wrinkles on the film f or the film f slipping or meandering. Further, if the introduction roller 8g is rotated synchronously with the first feeding pulley 20 by the same means as the pass rollers 8d to 8f, the occurrence of slipping, meandering, sagging and wrinkles of the film f can be further reduced. Therefore, quality is improved, occurrence of clogging of the film f can be reduced, and driving efficiency is improved. In the present embodiment, the first feeding device 15 feeds the film f by the first feeding belt 16, but it may be fed using a device that sandwiches the film f using two rollers.

DESCRIPTION OF SYMBOLS 1 Vertical bag making filling packaging machine 2 Bag making tube 3 Vertical sealer 4 Horizontal sealer 4a, 4b Heater block 4c Cutter 5 Travel path 6 Former 7 Reel 8a, 8b Follower roller 8c Dancer roller 8d-8f Pass roller 8g Introducing roller 9 Second roller Feeding device 10 Second feeding belt 11 Control device 12 Bag body 13 Second feeding motor (second drive source)
14 Second feeding pulley 15 First feeding device 16 First feeding belt 17 First suction unit 18 Second suction unit 19 First feeding motor (first driving source)
20 First delivery pulley 21 Rotation transmission body 22 Printing device f Film

Claims (3)

A travel path along which the film to be bagged travels,
A vertical bag-making tube that is disposed in the travel path and in which the package falls inside when the package is filled;
In order to make the film that is rolled out along the outer periphery of the bag-making tube into a bag body, an ultrasonic vertical sealer that seals the film in the vertical direction and a horizontal sealer that seals in the horizontal direction;
A first unwinding device for unwinding the film in the upstream travel path supplied to the bag making tube;
A second feeding device that is driven in conjunction with the first feeding device and feeds the film downward along the bag-making tube;
A vertical bag making apparatus comprising: a control device that controls the feeding force of the film so that the feeding force of the film of the second feeding device is smaller than the first feeding device. Filling packaging machine. The first feeding device includes a first feeding pulley that sends the film in a feeding direction, and a first drive source that rotates the first feeding pulley.
The travel path on the upstream side of the first feeding device includes a pass roller on which the film is wound and fed.
The vertical bag making filling and packaging machine according to claim 1, wherein the pass roller is connected to the first drive source. The travel path between the bag making tube and the first feeding device is provided with an introduction roller for winding and feeding the film.
2. The vertical bag making and packaging machine according to claim 1, wherein the introduction roller is connected to the first drive source.

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