JPH05330504A - Vertical bag making, filling and packaging machine - Google Patents

Abstract

PURPOSE:To decrease noises and vibrations of a machine by providing vertical heaters that seal end edges of wrapping films that are put together in rib-shaped state, horizontal sealing and cutting devices that make high-speed box motion and wrapping cylinder flattening devices that follow in terms of velocity the movement of horizontal heaters. CONSTITUTION:End edges (f) of wrapping films (F) that are put together in rib-shaped state pass through small gaps provided to a pair of vertically-long vertical heaters 6 that are provided between film-drawing rolls 5 and heater rolls 8. During such passage, the end edges (f) of the wrapping films (F) are heated up to a temperature with which welding can be made, and weak pressure sealing is applied thereto, and then complete vertical sealing is made by a pair of heater rolls 8, overlapping the heating made by the vertical heaters 6. Then, horizontal sealing is made by closing motion of horizontal heaters 9, and the wrapping films are lowered, synchronizing with the descending speed of a wrapping cylinder (H). At this time, squeezing rods 21, 21 descend together with the horizontal heaters 9, with a specified distance kept in the downward position from the horizontal heaters 9, and arrive at a down position ahead of the arrival of the heaters, and then start opening. Then, the horizontal heaters 9 arrive and start opening, and, the heaters are elevated in return motion, while the squeezing rods 21, 21 ascend at high speed along the inside of the horizontal heaters 9, preceding the ascending motion of the horizontal heaters.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses film feeding as continuous feeding, and the edges of the packaging film are abutted in a rib shape while the welding temperature of the vertical heater is appropriately controlled, or the edges of the packaging film are moved forward and backward. The present invention relates to a vertical bag-making filling and packaging machine that can perform a good vertical seal to be stacked on top of one another and can also perform a strong horizontal seal by performing a box motion on a horizontal heater.

[0002]

2. Description of the Related Art A vertical bag-making filling and packaging machine is an outer surface of a product dropping and filling cylinder which is wrapped with a packaging film which is folded into a tubular shape by a bag-making machine, and is intermittently or continuously lowered by a film feeding device. To a rib and butt it in a rib shape, or to form a packaging cylinder by vertically sealing the edges of the packaging films that are stacked in the front and back with a vertical sealing device, and use the horizontal seal cutting device to place the package on the top and bottom of the packaged product. Is laterally welded to the two seals and cut between the two seals. Then, conventionally, since the vertical bag-making filling and packaging machine drops the articles to be packaged by gravity and fills the inside of the packaging cylinder, it is almost the case that the feeding of the packaging film is intermittent feeding. There are rare cases. However, in recent years, the needs of customers have demanded higher-speed packaging, and since it is shifting to models that generate less noise and vibration, a vertical bag-making filling and packaging machine that continuously feeds the packaging film has been introduced. Attention is gathering. The conventional vertical bag-making filling and packaging machine, which continuously feeds the packaging film, is a type in which the horizontal bag-making filling and packaging machine is turned 90 degrees.

[0003]

A vertical bag-making filling and packaging machine which continuously feeds the above-mentioned conventional packaging film is
Since the horizontal bag-making filling and packaging machine was a type in which the orientation was changed by 90 degrees, the performance was never high, and the following problems peculiar to the vertical type were not sufficiently solved.
In order to increase the packaging speed, it is necessary to increase the heat load of the vertical seal and the horizontal seal accordingly, but the conventional vertical seal that vertically seals by overlapping the edges of the packaging film with a pair of heating rolls In addition, by rotating a pair of rotary shafts equipped with a horizontal heater, heating of the packaging film is insufficiently controlled in the conventional horizontal seal, and the vertical seal becomes defective. When packaging snacks such as potato chips, a squeezing device is provided to flatten the packaging tube by sandwiching it in order to prevent it from being piled up high so as to be caught in the horizontal heater. But
It wasn't a mechanic that could handle faster packaging. That is, a pair of ironing rods is attached to the lower side of the horizontal heater so as to be able to move up and down together with the heater block. To close the heater block and then lower the ironing rod to add ironing to the packaging cylinder to sink the snack confections accumulated in the ironed portion.
Subsequently, the pair of heater blocks are brought close to each other to perform lateral sealing, and the packaging speed becomes extremely low. When packing confectionery such as chocolate balls, the amount of one bag falls in a vertically long distribution, so if the packaging speed is increased, the lateral heater will bite the confectionery distributed and distributed in the upper position. However, a device for preventing such biting has never been provided in the past. The packaging of snacks, etc. is filled with air to prevent flattening of the bag and avoids damage to snacks, etc., but with filling of air, the flatness of the bag is horizontally sealed by a pair of shutters attached above the horizontal heater. Since it did not reach all the way to the end, wrinkling could occur when the inflated bag was horizontally sealed. When changing the size of the product drop-filling cylinder and bag making machine, the vertical sealing device was adjusted to the outer shape of the product drop-filling cylinder when the swivel arm was swung 90 degrees to move the vertical sealing device to the side and return again. It has been demanded to be able to easily adjust the axial stroke of the swivel arm so that the swivel arm can be brought to a required close position.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been devised in view of the above-mentioned points. The film feed is continuous feed, and the edge of the packaging film is formed into a rib shape while appropriately controlling the welding temperature of the vertical heater. It is possible to make a good vertical seal by wrapping the edges of the packaging film on top of each other or by stacking the edges of the packaging film on the front and back, and by making the horizontal heater perform a box motion, a strong horizontal seal can be made. It is equipped with a packaging tube flattening device that performs a vertical box motion, and before the horizontal heater closes, it rises to a required position above the horizontal heater and quickly moves downwards across the packaging tube to move the packaged object to the horizontal heater. Vertical bag-making that can pull in to the lower side of the bag and prevent it from being bitten, and can also wrinkle the packaging film to realize high-speed packaging with significantly reduced machine noise and vibration. It is an object of the present invention to provide a Hama packaging machine.

[0005]

According to the first invention of the present application, the packaging film is fed by the film feeding device C on the outer surface of the product dropping and filling cylinder 1 which is wrapped by the packaging film F which is folded into a tubular shape by the bag making machine 2. A vertical sealing device A that continuously feeds F downward and is provided at the turning end of the horizontal turning arm 3.
By means of vertical fusion welding to sandwich the edge f of the packaging film F in which the film inner surfaces overlap each other in a rib shape to form the packaging cylinder H, and the articles to be packaged supplied through the product drop filling cylinder 1 are dropped into the product drop filling cylinder. It is configured such that it is filled into a packaging cylinder H that hangs down from 1, and a horizontal seal cutting device D welds and seals the upper and lower sides of the packaged object of the packaging cylinder H horizontally in two lines and cuts between the two seals. In the vertical bag-making filling and packaging machine, in the vertical sealing device A, the edge f of the packaging film F that overlaps in a rib shape is power-transmitted via an upper power transmission mechanism 4 attached to the horizontal swivel arm 3. A pair of pair of rod-shaped vertical heaters 6 which are drawn by being sandwiched by the film pull-in rolls 5 so as to be brought into sliding contact with each other, and whose power is transmitted through a lower power transmission mechanism 7 attached to the horizontal swing arm 3. Across the heater roll 8 than the retraction speed of the film pull roll 5 is configured to compaction seal while performing film feed at a greater rate,
In the horizontal seal cutting device D, a pair of horizontal heater mounting plates 10 respectively supporting the horizontal heaters 9 are provided with annular groove cams 13a, 13b via cam engaging rods 12 provided at both ends of each horizontal heater mounting plate 10. Alternatively, the pair of horizontal heaters 9 move upward with the swiveling lever 15 engaged with the annular groove cams 13a, 13b or 14a, 14b and engaged with the annular groove cams 13a, 14b to move upward and package at the elevated position. It is closed by aligning with the registration mark printed on the film F, and welded and sealed in two lines horizontally, and it descends a predetermined distance in synchronization with the film speed and reopens in the lowered position to avoid interference with the packaged object and rise. It is configured to repeat a pair of returning symmetric box motions m1 and m2. Further, the horizontal seal cutting device D is provided with a pair of horizontal and parallel ironing rods 21 and 21. Box motion of horizontal heater 9
A pair of vertically symmetrical symmetrical box motions n1 and n2 are performed between the heaters in association with 1 and m2 while the horizontal heater 9 is open to move to a position higher than the horizontal heater 9 to move the packaging cylinder H to a desired upper position. The vertical bag-making filling and packaging machine is provided with a packaging-cylinder flattening device E, which is sandwiched and moves downward to flatten the packaging cylinder H over a required length.

According to the second invention of the present application, the packaging film F is continuously fed by the film feeding device C on the outer surface of the product dropping and filling cylinder 1 which is wrapped by the packaging film F which is folded into a tubular shape by the bag making device 2. The vertical sealing device B, which is fed downward and is provided at the swiveling end of the horizontal swiveling arm 3, presses the edge f of the packaging film F that overlaps the front and rear, and the packaging film F.
End edges f of the are welded and sealed vertically to form a packaging cylinder H,
In the vertical bag-making filling and packaging machine configured to weld and seal the article to be packaged in the packaging cylinder H horizontally in two lines and cut between the two seals by the horizontal seal cutting device D. The device B has an edge f of the packaging film F.
Is squeezed by one rod-shaped vertical heater 16 and an arch-shaped leaf spring 17 for film pressure bonding attached to the outer surface of the product dropping and filling cylinder 1, and the edge f of the packaging film F near the lower side thereof. During the packaging operation, the film feed roll 19 which is close to the horizontal turning arm 3 and is transmitted with power through the lower power transmission mechanism 18 attached thereto and the idle roller 20 attached to the outer surface of the product dropping and filling cylinder 1 rolls. Configured to press,
In the horizontal seal cutting device D, a pair of horizontal heater mounting plates 10 respectively supporting the horizontal heaters 9 are provided with annular groove cams 13a, 13b via cam engaging rods 12 provided at both ends of each horizontal heater mounting plate 10. Alternatively, the pair of horizontal heaters 9 move upward with the swiveling lever 15 engaged with the annular groove cams 13a, 13b or 14a, 14b and engaged with the annular groove cams 13a, 14b to move upward and package at the elevated position. It is closed by aligning with the registration mark printed on the film F, and welded and sealed in two lines horizontally, and it descends a predetermined distance in synchronization with the film speed and reopens in the lowered position to avoid interference with the packaged object and rise. It is configured to repeat a pair of returning symmetric box motions m1 and m2. Further, the horizontal seal cutting device D is provided with a pair of horizontal and parallel ironing rods 21 and 21. Along with the box motion of the horizontal heater 9, a pair of vertically symmetrical symmetrical box motions n1 and n2 are performed between the heaters while the horizontal heater 9 is open, and the package is moved to a position higher than the horizontal heater 9 to a desired position. The vertical bag-making filling and packaging machine is provided with a packaging tube flattening device E which moves downward with the tube H interposed therebetween to flatten the packaging tube H over a required length.

[0007]

First, the operation of the first invention of the present application will be described. When the wrapping is started, the vertical heater 6 and the heater roll 8 sandwich the edge f of the wrapping film F that overlaps with each other in a rib shape. While the film feeding device C continuously feeds the packaging film F,
Since the pair of film pulling rolls 5 pulls in the packaging film F, and the pair of heater rolls 8 pulls the packaging film F at a speed faster than the film pulling roll 5 by a required ratio. Therefore, between the film pulling roll 5 and the heater roll 8. The edge f of the wrapping film F flowing through the sheet is in a tensioned state and smoothly slides through the minute inter-heater gaps of the pair of vertical heaters 6 which are vertically long, and the edge f of the wrapping film F is in the meantime. Is heated to a temperature at which it can be welded while causing a creep phenomenon, and the pressure-bonding seal is weakened. The pair of heater rolls 8 performs the heat sealing of the edge f of the packaging film F overlapping with the heating of the vertical heater 6 to perform a complete vertical sealing. The pair of horizontal heaters 9 starts to close and rises until they close to each other and start horizontal sealing. At this time, the upper ends of the pair of ironing rods 21 and 21 are positioned higher than the horizontal heater 9. In front of the horizontal heater 9, they are closed in close proximity to each other, and the packaging cylinder H is sandwiched so as to be flat and squeezed downward before the horizontal heater 9 is closed. Objects to be packed that accumulate above the height or objects that are being dropped will be squeezed off, which will prevent the objects to be packed from being caught in the lateral heater 9, and will also take in an appropriate amount of air. And the horizontal heater 9 is
When the side seals are closed and the horizontal seal is started, the horizontal direction is continued in synchronization with the descending speed of the packaging cylinder H, and the horizontal seal is continued. At this time, the ironing rods 21 and 21 are positioned below the horizontal heater 9 at a required lower position. It descends together with the horizontal heater 9 and reaches a position lower than the lowest position of the horizontal heater 9 first and starts opening. Then, when the horizontal heater 9 reaches the lowered position, the horizontal seal is ended and starts to open, and then the upward return is performed again. At this time, the pair of ironing rods 21 and 21 start rising before the horizontal heater 9. Avoid the inside of the horizontal heater 9 and rise at high speed.

Next, the operation of the second invention of the present application will be described.
When the packaging is started, the vertical heater 6 presses the film pressing leaf spring 17 so that the required length of the intermediate portion of the film spring 17 is linearly bent and deformed, and the film feed roll 19 is moved by the floating roller 2.
The packaging film F is sandwiched in cooperation with 0. Therefore, the edge f of the packaging film F is clamped by the vertical heater 16 and the film pressing leaf spring 17 for a certain section, and the vertical heater 16 is pressed.
Is heated to a temperature at which it can be welded, and the pressure seal is weakly moved to slide through while being sandwiched between the film feed roll 19 and the floating roller 20 which are driven to rotate, and the vertical heater 16
The auxiliary feeding is performed from below so that the packaging film F is not caught and stopped by the sandwiching force between the plate spring 17 and the leaf spring 17 for film pressure bonding, and the pressure bonding is completely performed, so that heat sealing without distortion on the sealing surface is performed. Done. A pair of horizontal heaters 9 and a pair of ironing rods 21, 21
The operation and function of are the same as those of the first invention of the present application.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vertical bag-making filling and packaging machine according to the first invention of the present application will be described with reference to FIGS. 1 and 2 are schematic overall side views of a vertical bag-making filling and packaging machine. In this vertical bag-making filling and packaging machine, a bag-making device 2 is provided on an upper portion of a product dropping and filling cylinder 1, and a vertical sealing device A which is movable and adjustable to the front side so as to sandwich the lower portion of the product dropping and filling cylinder 1 and a rear side. A symmetric box motion m1 which is an endless flat loop locus operation in which a pair of lateral heaters 9 and 9 are constrained by a cam curve is provided below the product dropping and filling cylinder 1 provided with a film feeding device C whose movement is adjustable. , M2 for horizontal seal cutting, and a pair of ironing rods 21, 21 are flattened in an endless and vertically long state, which is restrained by two slide strokes in conjunction with the box motions m1, m2 of the horizontal seal cutting device D. A packaging cylinder flattening device E for performing symmetrical box motions n1 and n2, which are loop locus motions, is provided. FIG. 1 shows that the horizontal heaters 9 and 9 and the ironing rods 21 and 21 are open and are in the middle of rising, and the packaging cylinder H
Shows the place where it goes down between the horizontal heaters 9, 9. Figure 2
The horizontal heaters 9 and 9 are closed when the ironing rods 21 and 21 flatten and descend the packaging cylinder H and avoid the lower side of the horizontal heaters 9 and 9, so that the packaging cylinder H is horizontally sealed in two lines. , Shows where you are in the lowered position. The product drop-filling cylinder 1 has an upper end supported by a machine frame (not shown) and is connected to a hopper, a rotary kiln, or the like (not shown). The packaging film F that wraps the product dropping and filling cylinder 1 is vertically sealed by the vertical sealing device A and fills the inside of the packaging cylinder H that hangs down from the product dropping and filling cylinder 1.

As shown in FIG. 3, the bag-making device 2 includes a tubular portion 2a having a C-shaped horizontal section with a slit on the front side, and the tubular portion 2
and a collar portion 2b extending from the upper edge of a. Collar 2b
Surrounds the upper part of the product dropping and filling cylinder 1 with a uniform gap of 2 to 3 mm around it, and the collar 2b bends the packaging film F into a cylindrical three-dimensional curved shape without wrinkling from the plane. It has a curved surface shape. The bag making device 2 has a cylindrical shape between the product dropping and filling cylinder 1 and the cylinder portion 2a, which is formed by guiding the packaging film F, which is continuously guided in a belt shape from the rear, to the collar portion 2b and bends the packaging film F from the bent edge. It is supposed to lead to. The tube portion 2a stabilizes the packaging film F in a cylindrical shape so as to wrap and closely adhere to the product drop filling tube 1. The end edge f of the packaging film F is passed through the slit of the tubular portion 2a and is erected in a rib shape with respect to the product drop filling cylinder 1 so that the inner surfaces of the films are in close contact with each other and the film edge aligning tool 2
At 2, the close contact state is maintained.

As shown in FIGS. 3 to 7, the vertical sealing device A is used.
Is provided at the swivel end of a horizontal swivel arm 3 that is horizontally swivelable in front of the product drop filling cylinder 1. The horizontal swivel arm 3 largely moves the vertical sealing device A from the front side of the product dropping and filling cylinder 1 when changing the size of the product dropping and filling cylinder 1 and the bag making device 2, and changes the size of the vertical sealing device A. It fulfills the function of adjusting the position according to it. In detail,
The horizontal swing arm 3 is pivotally supported by a pin shaft 26 on a slider 25 which is slidably supported in a front-rear direction of the machine in a housing 24 provided in a machine side frame 23.
Product drop filling cylinder 1 by loosening the lock bolt 27
It is provided so that it can be horizontally rotated and opened to the left on the front side. The slider 25 pivotally supports a slide shaft 28 having a threaded portion 28a inserted therein, and by loosening a lock bolt 29 and turning a knob 30 fixed to the front end of the slide shaft 28, the slide shaft 28 is rotated. 28 screw part 2
It is provided so that the position of the nut runner 31 screwed to 8a can be adjusted. The nut runner 31 is fixed to the screw portion 28a by tightening the slit with the lock nut 32, and is slidably fitted into the internal space 24a of the housing 24. Therefore, the lock bolt 2
When 9 is tightened, the slider 28 cannot slide, and when it is loosened, the nut runner 31 can slide in the internal space 24a of the housing 24, and the slider 25 can be pulled out or pushed in by the stroke of the nut runner 31. Therefore, it is possible to easily position the vertical sealing device A close to the product dropping and filling cylinder 1.

As shown in FIGS. 3 and 4, the vertical sealing device A has an end of the packaging film F by a pair of film pulling rolls 5 located at the upper stage of a three-stage arrangement facing the front of the product dropping and filling cylinder 1. The edge f of the packaging film F is pulled by the pair of heater rolls 8 located at the lower stage of the three-stage arrangement as shown in FIGS.
And pulling in at a higher speed with the pair of rod-shaped vertical heaters 6 positioned in the middle of the three-stage arrangement, as shown in FIGS. The end edge f is slidably and closely sandwiched so as to continuously seal vertically. Then, as shown in FIG.
The film pull-in roll 5 is adapted to transmit power through an upper power transmission mechanism 4 attached to the horizontal swivel arm 3, and as shown in FIG. 6, the heater roll 8 is
Power is transmitted through a lower power transmission mechanism 7 attached to the horizontal swivel arm 3. As shown in FIG. 5, the pair of vertical heaters 6 are heat-welded by sandwiching the edges f of the packaging film F in a sliding state, and are separated from the edges f of the packaging film F when the transportation of the packaging film F is stopped. It has become. The pair of heater rolls 8 are provided with a seal on the roll circumferential surface, and the edges f of the packaging film F are rolled to heat and weld with the seal, and when the transfer of the packaging film F is stopped, the packaging film F is stopped. Is separated from the edge f of the. More specifically, as shown in FIGS. 3 to 6, the film pull-in roll 5, the vertical heater 6 and the heater roll 8 are arranged in a three-stage arrangement in which each stage is opposed to the product drop filling cylinder 1 in the front side and left and right. The upper stage bracket 33, the middle stage bracket 34, and the lower stage bracket 35, which are opened and closed to the left and right with respect to the center of the interval, are rotatably supported or fixedly supported. Brackets 33 of each step,
34 and 35 are urged by springs in the closing direction. As shown in FIG. 4, a pair of film pull-in rolls 5, 5
When the packaging film F is stretched or the horizontal turning arm 3 is opened, the feeding handle 36 is turned to rotate the elliptical cam 3
7 is rotated by a required angle, and the elliptical cam 37 is used to stretch the upper bracket 33 to open it, whereby the packaging film F is opened.
Is separated from the edge f. As shown in FIG. 5, in the pair of vertical heaters 6, the gap g between the heaters is finely adjusted by adjusting the screw stopper 38. As shown in FIG. 3, the pair of vertical heaters 6 and the pair of heater rolls 8 are
The elliptical cams 40 and 41 that are rotated by the rotary actuator 39 rotate 90 ° when the film feed is stopped, and stretch between the middle bracket 34 and the lower bracket 35 to open the edge f of the packaging film F. Separated from. As shown in FIGS. 4, 6 and 7, the pair of film pull-in rolls 5 and the pair of heater rolls 8 are
The power is transmitted via the upper power transmission mechanism 4 or the lower power transmission mechanism 7 to be rotationally driven.

As shown in FIG. 4, FIG. 6 and FIG. 7, the upper power transmission mechanism 4 and the lower power transmission mechanism 7 are substantially the same in the vertical arrangement, and the machine side frame. Two
3, the housing 24, the slider 25, and the horizontal swing arm 3. The upper power transmission mechanism 4 will be described with reference to FIGS. 4 and 7. The bevel gears 42, 42 provided coaxially with the pair of film pull-in rolls 5, 5 are the horizontal transmission shafts provided on the horizontal swivel arm 3. Four
The slave gear 45, which is meshed with the pair of bevel gears 44, 44 fixed to the third gear 3 and is provided at the base end of the horizontal transmission shaft 43, is provided on the slider 25 when the horizontal swing arm 3 is closed. The gear 46 is meshed with the original gear 46, and the original gear 46 is connected to a winding transmission device 47 connected to a drive source (not shown). The winding transmission device 47 includes a winding original wheel 47a provided on the machine side frame 23, a winding auxiliary wheel 47b provided on the slider 25 and capable of transmitting power to an original gear 46,
It is composed of a plurality of intermediate winding wheels 47c, ... And then slider 2
When the horizontal swing arm 3 is closed, the slave gear 45 and the original gear 46 mesh with each other, regardless of whether the position 5 is in the pull-out position or the push-in position, and the slider 46 follows the size change of the product drop filling cylinder 1. Even if 25 is moved and adjusted, the pair of film pull-in rolls 5 and 5 receives the rotational force for auxiliary feeding of the edge f of the packaging film F by the upper power transmission mechanism 4, and also has a pair of seal eyes. The heater roll 8 that is present receives the rotational force from the lower power transmission mechanism 7 and rolls the edges f of the packaging film F to heat-weld and seal them. The heater roll 8 has a diameter ratio set to be 10% to 20% larger than that of the film drawing roll 5. Therefore, the rolling pressure feed rate of the heater roll 8 is 10% to 2 so that the diameter ratio corresponds to the packaging film F auxiliary feed rate of the film drawing roll 5.
It becomes 0% larger.

As shown in FIG. 4, the horizontal swing arm 3 is closed at a right angle to the slider 25, and the knob 3
Turn 0 to bring the nut runner 31 toward the front side of the machine to the stop end, loosen the lock bolt 29, and carefully push the slider 25 into the housing 24. The pair of vertical heaters 6, 6 shown in FIG. Is closed without being preheated, and a position required to be close to the product dropping and filling cylinder 1 is determined. Then, the lock bolt 29 is tightened to fix the slider 25, the knob 30 is rotated to bring the nut runner 31 back to the rear end of the machine to the stop end, and the lock bolt 32 is tightened.
1 is fixed to the screw portion 28a, and the lock bolt 2
9 is loosened and the slider 25 is pulled out and moved until the nut runner 31 comes into contact with the stop end toward the front side of the machine, and then the lock bolt 27 is loosened to open the horizontal swing arm 3. Then, as shown in FIGS. 3 and 5, the rotary actuator 39 is actuated to release the opening action of the cam 40 on the middle bracket 34 and the pair of vertical heaters 6 and 6 are closed by the biasing of the spring. After adjusting the screw stopper 38 to set the inter-heater gap g to a desired minute size, the rotary actuator 39 is re-actuated to cause the cam 40 to open to the middle bracket 34, whereby the pair of vertical heaters 6 and 6 are connected. Keep it open. In this state, the packaging film F is hung on the bag making machine 2 to pass the product dropping and filling cylinder 1 so as to wrap it, and the end edges f of the left and right packaging films F are butted in a rib shape on the front side of the product dropping and filling cylinder 1. The horizontal swing arm 3 is closed and the lock bolt 27
When the lock bolt 29 is tightened after the slider 25 is pushed in and moved, the pair of film pull-in rolls 5, the pair of vertical heaters 6 and the pair of heater rolls 8 can respectively sandwich the edge f of the packaging film F. Separate to. Then, turn the handle 36 shown in FIG.
When it is rotated 0 ° and the pair of film pull-in rolls 5 and 5 is closed by the force of the spring to clamp the edge f of the packaging film F,
Preparation is complete.

As shown in FIGS. 3 and 4, the film feeding device C is simple and has a base end supported by the machine side frame 23 and projects like a cantilever to the rear side of the product drop filling cylinder 1. A large space behind the drop-filling cylinder 1 can be secured, which facilitates cleaning. The film feeding device C
Is a head part consisting of upper and lower toothed wheels 48a, 48b, a toothed wheel 48c located in the middle of the rear part, a vacuum box 48d, a toothed endless belt 48e having a large number of intake holes formed all around, and a casing 48f. The transmission shaft 48h and the toothed wheel 48, which are supported by a movable table 50 provided in the drive transmission system accommodating chamber 49 via a cylindrical cantilever arm 48g, are passed through the cantilever arm 48g.
c is connected, and the endless belt with teeth 48e continuously sucks and holds the packaging film F flowing between the endless belt 48e and the rear surface of the product dropping and filling cylinder 1. Movable table 50
Is adjusted in the longitudinal direction of the machine by rotating the handle 51 via the screw shaft 52. The transmission shaft 48h is connected to a servo motor (not shown) via a sprocket 48i fixed to the shaft end.

As shown in FIGS. 1, 2 and 10, the horizontal seal cutting device D performs box-shaped box motions m1 and m2 which are symmetrical in the front-rear direction with respect to a vertical plane passing through the substantial center of the product filling cylinder 1. It has a pair of horizontal heaters 9 and 9, and moves upward with the pair of horizontal heaters 9 and 9 open, and wraps at a rising position corresponding to a position where the object to be packaged in the packaging cylinder H is avoided above. It is aligned with the registration mark printed on the film F, and is closed and welded to two strips horizontally, and the push-cutting cutter 11 cuts between the seals of the two strips, and subsequently descends and descends a predetermined distance in synchronization with the film speed. It is configured to repeat the box motions m1 and m2 in which the box motions m1 and m2 are opened again at the position to avoid the interference with the object to be packaged and rise and return. As shown in FIG. 8, the lateral seal cutting device D is
The horizontal heaters 9 and 9 capable of double-sealing are supported by the pair of horizontal heater mounting plates 10 and 10, respectively, and the one horizontal heater 9 is provided with a push-cutting cutter 11 so that the pair of horizontal heater mounting plates 10 and 10 are provided at both ends. The annular groove cam 13a, 13b or 14 via the cam engaging rod 12 provided on the
a, 14b and annular groove cams 13a, 13b
Alternatively, by being swung by the swiveling lever 15 penetrating 14a, 14b, the sandwiching surfaces of the lateral heaters 9, 9 draw the loci m1, m2 of the box motion. That is, the pair of horizontal heaters 9 moves upward in the open state, closes in conformity with the registration mark printed on the packaging film F at the raised position, and welds and seals in two rows sideways, and subsequently synchronizes with the film speed. Then, the box motions m1 and m2 are repeated for descending a predetermined distance, reopening at the descending position and avoiding interference with the object to be packaged and ascending. The horizontal seal cutting device D
A push-cut rod 53 provided in parallel with one heater mounting plate 10 is provided, and the base end is inserted and fixed to both ends of the horizontal heater mounting plate 10 on the right side in FIG. 8 and the other end is mounted on the left side horizontal heater. Two horizontal guides 54 slidably fitted to both ends of the plate 10 are provided, and two slide rods 55, 55 connected to both ends of the push-cut rod 53 are respectively attached to the horizontal guide cylinders 54, 54. The cam engaging rods 56, 56 which are passed through and fixed to the right end of each slide rod 55 are engaged with the cam grooves of the pair of right side annular groove cams 57, 57 and penetrate the annular groove cam 57. The pair of right-side turning levers 58, 58 provided on the right side are pivotally engaged with each other. Figure 9
As shown in FIG. 5, the right annular groove cam 58 is a cam that operates the push-cutting cutter, and is a portion 58 that bulges outward in the middle of the flat groove portion as compared with the left annular groove cam 13a.
Since there is a, the slide rod 55 shown in FIG.
55 slides relatively to the right relative to the horizontal guide cylinders 54, 54, so that the horizontal heaters 9, 9 laterally seal in two rows and move downward while the push cutter 1
1 is pushed and moved. The three swiveling levers 15, 15, 58 on both sides are gears 59, 59 with the same number of teeth, respectively.
59, 59 and 59 are coaxially connected, and gears 59, 59, 5
9 are meshed in order, and the gear trains on both sides are synchronous gears 60,
They are connected by 60 and are rotated by a servo motor (not shown). A shutter 6 is provided on the upper surface of each lateral heater mounting plate 10 to close the lateral heaters 9 and 9 before the lateral heaters 9 and 9 are closed to seal the packaging cylinder and prevent wrinkles.
1, 61 are attached.

As shown in FIGS. 1, 2 and 8, the horizontal seal cutting device D includes a box motion m of the horizontal heater 9.
A packaging cylinder flattening device E having two ironing rods 21 and 21 for performing longitudinal box motions m1 and m2 between the heaters in association with 1 and m2 is provided. The packaging cylinder flattening device E
Is raised to a required upper position than the horizontal heater 9 before the horizontal heater 9 is closed, and quickly moves downward with the packaging cylinder H sandwiched therebetween to prevent the object to be caught from being caught in the lower side of the horizontal heater 9. In addition to this, a packaging tube flattening device E for wrinkling the packaging film F is additionally provided. The packaging cylinder flattening device E includes a pair of vertical guides 62, 62 on both sides of the horizontal heater 9 in the longitudinal direction.
Is provided, and two pairs of swing fingers 64a, 64b, and 65a that open and close on a slide boss 63 guided by each vertical guide 62 in a vertical plane that coincides with the opening and closing direction of the horizontal heater 9.
And 65b are attached, and the two ironing rods 21 and 21 pass through the front sides of the pair of horizontal heaters 9 in parallel, and the swing finger 64 is provided.
It is provided so as to connect a and 65a or 64b and 65b. As shown in FIG. 1, two ironing rods 21,
In order to cause 21 to perform box motions n1 and n2,
Two pairs of swing fingers 64a, 64b, 65a, 65b
The means for swinging and raising and lowering are separately provided for the two functions of swinging and raising and lowering. The means for raising and lowering the swinging finger is the horizontal heater mounting plate 1 on the right side in FIG.
0 and the slide boss 63 are configured by a required link mechanism 67 provided so as to be connected to each other. Further, the means for causing the swinging finger to swing includes a right swinging finger 64a, 65a in a vertically elongated groove of a channel guide 69 which is horizontally slid by a swinging arm 68 which is branched from a driving source of a horizontal heater. A cam follower 70 pivotally attached to each lower end of the is fitted.

FIG. 10 is a process diagram for explaining the correlated operation between the horizontal seal cutting device and the packaging tube flattening device. The horizontal heaters 6, 6, the push cutter 11, the shutters 61, 61, and the swing fingers 64a, 64b, 65
The positions of a and 65b and the ironing rods 21 and 21 are (a) →
(B) → (c) → (d) → (e) → (f) are changed in this order and circulated. In (a), m1 and m2 are horizontal heaters 9,
The locus of the box motion drawn by the sandwiching surface of 9 corresponds to the cam curve of the annular groove cams 13a and 14a shown in FIG. 8, and n1 and n2 are the swing fingers 64a and 6a.
4b, 65a, 65b swinging and lifting up and down
1 and 21 are the loci of the box motions drawn, and p is the locus of the box motions drawn by the rear end of the push-cutting cutter 11, and the annular groove cams 13a and 14a shown in FIG.
It corresponds to the cam curve of. In (a), the horizontal heaters 9, 9 are opened and are positioned in the middle of the ascending stroke and are in the middle of ascending, and the swing fingers 64a, 64b,
65a and 65b rise with the open state, and the ironing rod 21,
21 passes through the insides of the horizontal heaters 9 and 9 in close proximity to each other and is positioned higher than the shutters 61 and 61 and is in the middle of rising. (B)
Then, the swing fingers 64a, 64b, 65a, 65b
Comes to a high position and closes, the two ironing rods 21 and 21 flatten the packaging cylinder with the packaging cylinder interposed therebetween, and the horizontal heaters 9 and 9 are opened to a high position. In (c), the squeezing rods 21 and 21 descend to a position substantially in the middle of the descending stroke across the packaging cylinder at a speed much higher than the film feeding speed, at which time air is taken into the bag and distributed at a high position. Then, the items to be packed that fall and are filled are squeezed down, and then the shutters 61, 61
Closes and secures the flatness of the horizontal sealing portion of the packaging cylinder in cooperation with the ironing rods 21 and 21. Further, the horizontal heaters 9 and 9 are aligned with the registration mark printed on the packaging film and closed to start horizontal sealing in two lines. By the way. Shutters 61 and 6
When 1 is closed, the next object to be wrapped falls on the shutters 61, 61. In (d), the shutters 61, 61
The horizontal heaters 9 and 9 and the ironing rods 21 and 21 are closed, and the horizontal heaters 9 and 9 are located in the middle of the downward stroke. The push-cutting cutter 11 is cutting the space between the two lateral seals by the displacement of the cam curve between the left and right annular groove cams 13a. In (e), the shutters 61, 61, the horizontal heaters 9, 9 and the ironing rod 21,
21 has just closed and has come to the lowered position, and the push-cutting cutter 11 has completed push-cutting and has moved back. In (f), the shutters 61, 61 and the lateral heaters 9, 9 and the ironing rods 21, 21 are opened to start the ascending return.

Next, the overall operation of the vertical bag-making filling and packaging machine configured as described above will be briefly described. As shown in FIG. 3, FIG. 4, FIG. 5, and FIG. 6, the packaging film F is guided from the back of the bag making machine 2 and the product dropping and filling cylinder 1 is wrapped by the folding action of the bag making machine 2 and the packaging film on both sides is introduced. The edge f of F is aligned in a rib shape on the front side of the product dropping and filling cylinder 1, while the inter-heater gap g shown in FIG. Let Then, each pair of film pull-in rolls 5, 5,
The vertical heaters 6 and 6 and the heater rolls 8 and 8 face each other at a position where the edge f of the packaging film F can be sandwiched. Handle 3
The operation preparation is completed when the film drawing rolls 5 and 5 pinch the edge f of the packaging film F by gripping 6 and rotating the cam 37 to close the upper bracket 33. When the operation is started, the cams 40 and 41 are rotated by the rotary actuator 39 and the middle bracket 34 and the lower bracket 35 are closed, so that the vertical heaters 6 and 6 and the heater rolls 8 and 8 are respectively edge f of the packaging film F.
Sandwich. Then, the film feeding device C changes the packaging film F.
While continuously feeding, the film pull-in rolls 5, 5
Is transmitted through the upper power transmission mechanism 4 to roll and auxiliary feed the edge f of the packaging film F, and the pair of heater rolls 8 are transmitted power through the lower power transmission mechanism 7 to the edges of the packaging film F. Since f is pulled at a required rate faster than the film pull-in rolls 5 and 5, the edge f of the packaging film F flowing between the film pull-in roll 5 and the heater roll 8 becomes a tension state and becomes a pair of long vertically. Vertical heater 6
The small gap g between the heaters is smoothly slidably contacted and passed through, and during the passage, the creeping phenomenon is caused and the pressure is heated to a temperature at which welding is possible and the pressure-bonding seal is weakened. The presence of the film pull-in roll 5 prevents the edge f of the packaging film F from being exposed by passing the packaging film F through the gap between the heaters in a tension state, and as a result, the meandering phenomenon of the packaging film F in the bag making machine 2 is caused. It is effective in avoiding. Then, the pair of heater rolls 8 and 8 overlap the heating of the end edge f of the packaging film F with the heating of the vertical heater 6 to perform a complete vertical seal and make a seal. In the above case, the initial inter-heater gap g of the pair of vertical heaters 6 and 6 is adjusted by the stopper 38 so as to be, for example, 2 mm, and the vertical heaters 6 and 6 and the heater rolls 8 and 8 are the types of the packaging film F. Then, the temperature is adjusted to an appropriate temperature in accordance with the film feeding speed, and then the stopper 38 is adjusted to narrow the gap g between the heaters to appropriately adjust the welding heating by the vertical heaters 6 and 6. When the temperature of the vertical heaters 6 and 6 and the heater rolls 8 and 8 is appropriate but the pressure-bonding seal is incomplete, the heating by welding by the vertical heaters 6 and 6 is insufficient. , 6 is finely adjusted so that the inter-heater gap g is small. If the gap g between the heaters is made small, the sliding contact pressure of the packaging film F and the heat welding temperature can be delicately increased, and the pressure-sensitive sealing in the heater roll 8 can be satisfactorily performed. Further, when the pressures of the vertical heaters 6 and 6 and the heater rolls 8 and 8 are appropriate but the pressure sealing is excessively performed, the stopper 38 is adjusted to increase the inter-heater gap g of the vertical heaters 6 and 6. Make fine adjustments. When the gap g between the heaters is increased, the sliding contact pressure of the packaging film F and the heating temperature due to radiant / electrical heat can be delicately lowered, and the pressure-sensitive sealing by the heater rolls 8 can be performed well. When the film feeding is stopped, the elliptical cams 40 and 41 move to the rotary actuator 3
9, the middle bracket 34 and the lower bracket 35 are opened by the tensioning action of the cams 40 and 41, and the vertical heaters 6 and 6 and the heater rolls 8 and 8 are separated from the edge f of the packaging film F. .. On the other hand, as shown in FIGS. 1, 2 and 10, the horizontal heaters 9 and 9 of the horizontal seal cutting device D perform box motions m1 and m2, and the ironing rods 21 and 21 of the packaging tube flattening device E perform box motions. Vertically elongated box motions n1 and n2 interlocked with m1 and m2 are performed, and the ironing rods 21 and 21 are opened so as not to hit the articles falling in the packaging cylinder H and pass inside the horizontal heaters 9 and 9 horizontally. It rises higher than the heater 9 and is flattened with the packaging cylinder H sandwiched between them, and then quickly descends to squeeze the packaged object that accumulates at the same height or more as the horizontal heater 9 or the packaged article that is falling to make the packaged object horizontal. It avoids being bitten by the heater 9, and then the horizontal heaters 9 and 9 are closed in conformity with the registration mark of the wrapping film to descend in synchronism with the film speed to perform strong heat sealing, and the push-cut cutter. 11 is cut between the lateral seal of Nijo.

Next, an embodiment of the vertical bag-making filling and packaging machine according to the second invention of the present application will be described with reference to FIGS. 11, 12 and 13. This vertical bag-making filling and packaging machine is similar to the embodiment of the first invention, in which the product drop-filling tube 1, bag making machine 2, vertical sealing device B, film feeding device C, horizontal seal cutting device D, and packaging tube flattening device. It consists of E and. This vertical bag-making filling and packaging machine
Only the vertical sealing device B is different from the vertical sealing device A according to the embodiment of the first invention. The difference between the vertical sealing device B and the vertical sealing device A is that the vertical sealing device A stands up the edge f of the packaging film F in the shape of a rib on the front side of the product drop filling cylinder 1 and superimposes the film edges on a pair of heaters. The vertical sealing device B stacks the edge f of the packaging film F on the front side of the product dropping and filling cylinder 1 in the front-back direction, and the film edges are heaters. It is arranged so that it can be vertically sealed by being sandwiched by the product dropping and filling cylinder 1. The same components as those of the first invention of this embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the vertical sealing device B, the edge f of the packaging film F is attached to the front of the rod-shaped vertical heater 16 and the product drop filling cylinder 1, and the arch-shaped leaf spring 17 for film pressure bonding is attached.
The film feed roll 19 and the product which are adapted to be pinched by and to which power is transmitted near the lower side of them during packaging operation and through the lower power transmission mechanism 7 attached to the horizontal swing arm 3. It is configured to roll by a floating roller 20 attached to the outer surface of the drop filling cylinder 1. The vertical heater 16 cooperates with the leaf spring 17 for film pressure bonding to slidably sandwich the packaging film F,
Is heated to a temperature at which it can be welded. The film pressing plate 83 fixed to the tip of the heater bracket 71 is a substantially rectangular plate having a vertically long slit, and the vertical heater 16 and the film feed roll 19 can face the product dropping and filling cylinder 1 through the slit. Thus, it has a function of pressing the vicinity of both sides of the edge f of the packaging film F so as to be in close contact with the product dropping and filling cylinder 1. Leaf spring for film crimping 1
Reference numeral 7 is a member indispensable for the vertical heater 16 to obtain an appropriate clamping force on the packaging film F. The film feed roll 19 cooperates with the floating roller 20 to draw in the packaging film F, and pressure-bonds the edges f of the packaging film F heated to a temperature capable of being welded by the vertical heater 16 to each other. The floating roller 20 is an essential member for effectively and smoothly pulling the packaging film F.

The vertical heater 16 is attached to a required double bracket 72 provided on the heater bracket 71,
It has a required length in the up-down direction and faces the edge f of the packaging film F that overlaps the front and rear of the product drop filling cylinder 1.
The compound bracket 72 includes a mounting board 74 whose position can be finely adjusted by tightening adjustment bolts 73, 73 with respect to the horizontal pivot arm 3, and a spring 7 which is guided by the mounting board 74.
5 and a driven plate 76 that supports the vertical heater 16 and is urged in a direction approaching the product dropping and filling cylinder 1. Driven plate 76
Is an actuator 77 mounted on the mounting substrate 74.
The elliptic cam 78 fixed to the output shaft of the product can approach and separate from the product dropping and filling cylinder 1. When the film feed is started, the actuator 77 causes the elliptical cam 78 to move.
Is rotated by 180 ° to bring the driven plate 76 closer to the product dropping and filling cylinder 1 in cooperation with the spring 75, and the vertical heater 16 is pressed against the film pressing leaf spring 17, and the film feeding is stopped. Then, the elliptical cam 78 is further rotated by 180 ° to separate the driven plate 76 from the product dropping and filling cylinder 1, and the vertical heater 16 is attached to the film pressing leaf spring 1.
It is designed to be separated from 7.

A leaf spring 17 made of stainless steel or a strip-shaped leaf spring made of spring steel coated with fluororesin or Teflon resin is used as the leaf spring 17 for film pressure bonding. The leaf spring 17 for film crimping is fixed by a leaf spring mounting member 79 fitted in a vertically elongated groove 1a formed in the product drop filling cylinder 1 and having upper and lower ends fixed with screws. The leaf spring mounting member 79 holds the lower end of the film crimping leaf spring 17 in an insertion hole 79a provided in the lower portion, and bends the middle of the film crimping leaf spring 17 in an arc shape to form a film crimping leaf spring. 1
A screw 80 is screwed into and fixed to a long hole formed at the upper end of 7, and the degree of curvature can be adjusted in an arc shape of the leaf spring 17 for film pressure bonding. The floating roller 20 is a leaf spring attachment 7
Three are provided in the lower part of 9.

The film feed roll 19 is a urethane rubber roll, and is provided by a heater bracket 71 adjacent to the lower side of the vertical heater 16. The mechanism for transmitting the rotational power to the film feed roll 19 includes a winding device 81 including a small rope wheel, a large rope wheel, and an endless rope.
Rotational power is transmitted to the winding device 81 via a transmission shaft 82 provided along the horizontal swivel arm 3, and the power transmission mechanism 18 from the power source to the transmission shaft 82.
Is the same structure as the lower power transmission mechanism 7 of the embodiment of the first invention. The roll pressure of the film feed roll 19 and the floating roller 20 is adjusted by the fine adjustment movement of the slider 25, but it is preferable that the film feed roll 19 can be shifted. The structure in which the packaging film F is compressed by the film feed roll 19 and the floating roller 20 is
This is to prevent wrinkles from being generated on the edge f of the packaging film F at the vertical heater 16 so that the film cannot slide, and at the vertical heater 16, the film is heated to the welding temperature and an incomplete welding state is generated. This is because a welding pressure is applied to complete the welding seal.

Next, the operation of the embodiment of the second invention of the present application constructed as described above will be briefly described. The packaging film F is passed by the bag maker 2 so as to wrap the product dropping and filling cylinder 1, the horizontal swing arm 3 is closed and the slider 25 is pushed in, and the edge f of the packaging film F is moved to the product dropping and filling cylinder 1 by the film pressing plate 83. Press down. Then, the film feed roll 19
Will sandwich the packaging film F in cooperation with the floating roller 20. When the packaging operation is started, the film feeding device C continuously feeds the packaging film F, the driven plate 76 of the multiple bracket 72 moves closer to the product dropping and filling cylinder 1, and the vertical heater 16 preheated to the required temperature is web-pressed. The required length of the intermediate portion of the leaf spring 17 is pressed so as to be bent and deformed linearly, and the film feed roll 19 cooperates with the floating roller 20 to sandwich and pull the packaging film F. Therefore, the edge f of the packaging film F is clamped by the vertical heater 16 and the film pressing leaf spring 17 for a certain section, and the vertical heater 1
6 is heated to a temperature at which it can be welded, and the pressure-bonding seal is weakly moved to slide through while being sandwiched between the film feed roll 19 and the floating roller 20 and pressure-bonded to provide a heat seal without wrinkles on the seal surface. To be done. In that way
The packaging film F is vertically sealed to form a packaging cylinder H, which is fed downward, and a predetermined amount of an object to be packaged is dropped and filled through the product dropping / filling cylinder 1 at predetermined time intervals. The required upper part of the article to be packaged is laterally sealed in two rows, and a space between the two lateral seals is cut. A pair of lateral heaters 9, 9 and a pair of ironing rods 21,
Since the operation and function of 21 are the same as those of the first embodiment of the present invention, description thereof will be omitted.

If the temperature of the vertical heater 16 is too high or too low, the temperature of the vertical heater 16 is adjusted. When the temperature of the vertical heater 16 is appropriate but the heating time is short and the welding temperature does not reach the crimp seal, the double bracket 72 is adjusted to make linear contact between the vertical heater 16 and the leaf spring 17 for film crimping. When the length of the portion is increased, the heating time can be substantially delicately and proportionally lengthened, and the welding temperature can be subtly corresponding to the thickness and type of the packaging film F, and the sandwiching The pressure can be increased delicately and proportionally, and the crimp seal is well performed. Further, when the temperature of the vertical heater 16 is appropriate but the pressure seal is excessively performed, the double bracket 7
If the length of the linear contact portion between the vertical heater 16 and the leaf spring 17 for film pressure bonding is reduced by adjusting 2, the heating and welding time will be slightly shortened and the pressure bonding sealing will be performed well.

[0027]

As described above, according to the vertical bag-making filling and packaging machine of the first invention of the present application, the edge of the ribbed packaging film is heated over a required long range for heating ability. On the other hand, since the heating capacity can be adjusted subtly and proportionally while maintaining the temperature of the vertical heater at an appropriate temperature, the welding temperature in the vertical heater can be appropriately controlled,
Even if the type of packaging film and the feeding speed are different, the corresponding adjustments can be made delicately and the packaging film can be continuously fed to achieve good vertical sealing, and the noise and vibration of the machine can be greatly reduced, and high-speed packaging is possible. ..

Further, according to the vertical bag-making filling and packaging machine of the second invention of the present application, the one that requires a large heat transfer capacity because the packaging film has a large thickness or a high welding temperature is used as a standard. By keeping the gap between the heaters as small as possible within the range that does not hinder the film feeding, the temperature of the vertical heater and the temperature of the heater roll are controlled according to the type of the packaging film and the film feeding speed. The heat transfer capacity of the heater can be set to a necessary and adequate size, and the heat transfer capacity needs to be delicately reduced due to the small thickness of the packaging film F or the low welding temperature. In such a case, it may not be possible to cope with it simply by changing the temperature of the heater. In that case, finely adjust the inter-heater gap of the vertical heater to a required large value. The heat transfer capacity can be delicately reduced without changing the heater temperature. In this way, regardless of the type of packaging film or the film feed speed, the temperature control and heat of the heater can be handled appropriately. The transmission capacity can be easily controlled and good vertical sealing can be achieved.

Further, according to the vertical bag-making filling and packaging machine of the first invention and the second invention of the present application, since the horizontal heater performs box motion at high speed to perform horizontal sealing, strong horizontal sealing can be performed.

Further, according to the vertical bag-making filling and packaging machine of the first invention and the second invention of the present application, the packaging cylinder flattening device for performing box motion capable of mechanically following the high-speed box motion of the horizontal heater is provided. Before the horizontal heater is closed, it rises to a required upper position than the horizontal heater and quickly moves downward by sandwiching the packaging cylinder to pull the object to be packaged to the lower side of the horizontal heater to prevent it from being caught and prevent the packaging film from being caught. Wrinkles can be removed to achieve beautiful packaging. Therefore, in the case of packaging snacks such as potato chips, it is possible to prevent high accumulation such that the snack is bitten by the horizontal heater, and moreover, the packaging speed can be sufficiently increased. Also, when packing confectionery such as chocolate balls, the amount of one bag will fall in a vertically long distribution, but since it is equipped with a packaging tube flattening device that performs box motion that can respond at high speed, packaging Even if the speed is increased, the horizontal heater does not bite the confectionery distributed in the upper position and falling.

Further, according to the vertical bag-making filling and packaging machine of the first invention and the second invention of the present application, the packaging film is fed continuously, and the vertical heater device and the strong horizontal seal capable of proper temperature control are provided. Since it is equipped with a horizontal heater device and a packaging tube flattening device that can be used, high-speed packaging can be realized with significantly reduced noise and vibration of the machine.

[Brief description of drawings]

FIG. 1 is a schematic overall side view of a vertical bag-making filling and packaging machine according to an embodiment of the present invention when horizontal sealing is not performed.

FIG. 2 is a schematic overall side view of the vertical bag-making filling and packaging machine of FIG. 1 when performing horizontal sealing.

FIG. 3 is a side view of an enlarged main part of the upper half of the vertical bag-making filling and packaging machine of FIG.

4 is a horizontal sectional view taken along the line IV-IV in FIG.

5 is a horizontal sectional view taken along the line VV in FIG.

6 is a horizontal sectional view taken along the line VI-VI in FIG.

7 is a vertical sectional view taken along the line VII-VII in FIG.

8 is an arrow view taken along the line VIII-VIII in FIG.

9 is an arrow view taken along the line XI-XI in FIG.

FIG. 10 is a process diagram for explaining a correlated operation between a horizontal seal cutting device and a packaging tube flattening device, which form a main part of the lower half of the vertical bag-making filling and packaging machine of FIG. 1.

FIG. 11 is a schematic side view of the vertical bag-making filling and packaging machine according to the second embodiment of the present invention when horizontal sealing is not performed.

FIG. 12 is an enlarged side view of essential parts of the upper half of the vertical bag-making filling and packaging machine of FIG. 11.

13 is a horizontal sectional view taken along the line XIII-XIII in FIG.

[Explanation of symbols]

 1 ・ ・ ・ Product drop filling cylinder 2 ・ ・ ・ Bag making machine 3 ・ ・ ・ Horizontal turning arm A ・ ・ ・ Vertical seal device B ・ ・ ・ Vertical seal device C ・ ・ ・ Film feed device D ・ ・ ・ Horizontal seal cut Device E ... Packaging tube flatting device F ... Packaging film f ... Film edge H ... Packaging cylinder 4 ... Upper power transmission mechanism 5 ... Film pulling roll 6 ... Vertical heater 7 ・ ・ ・ Lower power transmission mechanism 8 ・ ・ ・ Heater roll 9 ・ ・ ・ Horizontal heater 10 ・ ・ ・ Horizontal heater mounting plate 12 ・ ・ ・ Cam engagement rods 13a, 13b ・ ・ ・ Annular groove cams 14a, 14b ・・ ・ Circular groove cam 15 ・ ・ Swivel lever 16 ・ ・ ・ Vertical heater 17 ・ ・ ・ Film spring for film crimping 18 ・ ・ ・ Lower power transmission mechanism 19 ・ ・ ・ Film feed roll 20 ・ ・ ・ Floating roller 21 ・ ・・ Ironing rods m1, m2 ・ ・Box motion n1, n2 ·· box motion

Claims (2)

[Claims] 1. An outer surface of a product dropping and filling cylinder wrapped with a packaging film that is bent into a tubular shape by a bag-making device, and is provided with a film feeding device to continuously feed the packaging film downward and to a pivot end of a horizontal pivot arm. With the vertical sealing device, the inner surfaces of the films overlap each other in a rib shape, and the edges of the packaging film are sandwiched to vertically weld and seal to form a packaging cylinder. Vertical bag-making filling configured so that it is filled in a more downwardly hanging packaging cylinder, and a horizontal seal cutting device welds and seals the top and bottom of the packaged article in two strips horizontally and cuts between the two seals. In the wrapping machine, the vertical sealing device includes a pair of fils to which power is transmitted to the edges of the wrapping film overlapping in a rib shape via an upper power transmission mechanism attached to a horizontal swing arm. A pair of heater rolls are inserted between the pair of rod-shaped vertical heaters to guide them so that they slide into close contact with each other, and power is transmitted through the lower power transmission mechanism attached to the horizontal swing arm. The horizontal seal cutting device is configured to perform a roll compaction seal while feeding the film at a speed higher than the drawing speed of the film drawing roll, and the horizontal seal cutting device includes a pair of horizontal heater mounting plates that respectively support the horizontal heaters. The pair of horizontal heaters is opened upward by being swung by the swiveling lever which is engaged with the annular groove cam through the cam engaging rods provided at both ends of the heater mounting plate and penetrates the annular groove cam. Move and move up to align with the registration mark printed on the wrapping film, close it sideways, and weld and seal it in two lines, and move it down a predetermined distance in synchronization with the film speed. It is configured to repeat a pair of symmetrical box motions of reopening in the lowered position and avoiding interference with the object to be packaged and ascending and returning.In addition, the horizontal seal cutting device has a pair of horizontal and parallel ironing rods. Interlocked with the box motion of the horizontal heater, a pair of vertically elongated symmetrical box motions are performed between the heaters while the horizontal heater is open to move to a required position higher than the horizontal heater to sandwich the packaging cylinder and move downward. A vertical bag-making filling and packaging machine, further comprising a packaging tube flattening device which shifts to flatten the packaging tube over a required length. 2. An outer surface of a product dropping and filling cylinder wrapped with a packaging film that is bent into a tubular shape by a bag-making device, and is provided with a film feeding device to continuously feed the packaging film downward and to a pivot end of a horizontal pivot arm. With the vertical sealing device, the edges of the packaging films that overlap in the front and rear are pressed to vertically weld and seal the edges of the packaging films to form a packaging cylinder,
In a vertical bag-filling and packaging machine configured to weld and seal the top and bottom of the packaged article of the packaging cylinder in two rows by a horizontal seal cutting device and cut between the two seals,
The vertical sealing device clamps the edge of the packaging film with a rod-shaped vertical heater and an arch-shaped film crimping leaf spring attached to the outer surface of the product drop filling cylinder, and near the lower side thereof. The edge of the wrapping film is formed by a film feed roll that is close to the wrapping operation and is transmitted through a lower power transmission mechanism attached to the horizontal swing arm, and a floating roller attached to the outer surface of the product dropping and filling cylinder. In the horizontal seal cutting device, a pair of horizontal heater mounting plates that respectively support the horizontal heaters is configured to roll, and a pair of horizontal heater mounting plates are connected to the annular groove cams via cam engaging rods provided at both ends of each horizontal heater mounting plate. The pair of lateral heaters moves upward with the pair of lateral heaters open by being swung by the swiveling lever that is engaged and penetrates the annular groove cam, and is closed in alignment with the registration mark printed on the packaging film at the raised position. Weld and seal two strips sideways, descend a predetermined distance in synchronism with the film speed, reopen in the descending position, and repeat a pair of symmetrical box motions of rising and avoiding interference with the object to be packaged. Is composed of
Further, in the horizontal seal cutting device, a pair of horizontal and parallel ironing rods perform a pair of vertically elongated symmetrical box motions between the heaters while the horizontal heaters are open, interlocking with the box motions of the horizontal heaters. A vertical bag-filling and packaging machine characterized by being provided with a packaging-cylinder flattening device which moves to a position above the horizontal heater and moves downward with the packaging cylinder sandwiched to flatten the packaging cylinder over a required length. Machine.