JP3513663B2 - Horizontal bag making filling and packaging equipment for four side seal flat bags - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the packaging of flat products requiring air permeability and light shielding properties, such as ship drugs, for example, by depositing an aluminum thin film on the inner surface side. A four-sided seal type that superimposes relatively rigid packaging films, feeds flat products between the films at regular intervals, side seals both edges of the film into a flat packaging tube, and ends and cuts between products. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a horizontal bag making / filling / packaging apparatus for a flat bag, in which four corners of the bag can be cut off. 2. Description of the Related Art A conventional four-sided sealing type flat bag horizontal bag making and filling apparatus is configured to stack packaging films, feed flat products between films at regular intervals, and flatten both sides of the film by side sealing. The package is designed to be sealed, and the product between the packages is end-sealed and cut. And
In order to package flat products that require air permeability and light shielding properties, such as ship drugs, for example, a relatively stiff packaging film in which an aluminum thin film is deposited on the inner surface side is used. [0003] For this reason, the four corners of the flat bag made of the bag are formed with right-angled sharp blades, and there is a risk that the hand may be cut off. The present invention has been made in view of the above points, and can be made into a four-sided seal flat bag whose four corners are cut off so that there is no fear of cutting hands. It is an object of the present invention to provide a horizontal bag-making filling and packaging apparatus for a four-sided sealed flat bag, which is versatile enough to cope with the four-sided sealed flat bag. According to the present invention, as a means for solving the above-mentioned problems, a flat packaging cylinder H is formed by superimposing a packaging film F and side sealing both edges of the film, and The flat product is fed between the films at a constant interval, and the end seal device 10 that performs a box motion symmetrical up and down is end-sealed between the products of the packaging tube H, and the cutting device 30 is used to seal length from the center of the seal width of the end seal. In the horizontal bag-making filling and packaging apparatus that cuts in the direction, between the end sealing device 10 and the cutting device 30, the length can be freely adjusted to a required position where the horizontal component motion of the box motion of the end sealing device 10 is performed. A movable table 4 connected to the end seal device 10 and separated from the end seal device 10 by one bag length and elongated in the film width direction.
And a pair of punch blocks 51, 51 which are mounted on the movable table 40 at both ends on the movable table 40 so as to be able to approach and separate from each other and are adjusted to required intervals according to the width dimension of the packaging tube H. And slits 51a, 51 horizontally engraved on each punch block 51, 51
a, one end f of the packaging tube H is inserted into the inside of the punch block 51, and the dies 54 are attached to the lower portions 51b, 51b of the punch blocks 51, 51 below the slits 51a, 51a and above the slits 51a, 51a. Part 51
A punch guide cylinder 52 is fitted into a vertical hole formed in each of c and 51c so as to be slidable up and down.
A punch cutter 53 is fitted into the second cylinder hole so as to be slidable up and down, and a punch guide cylinder 52 and a punch cutter 53 are fitted.
Is provided with a pair of punch cutting devices 50 urged away from the dies 54 by springs 55, 56, and is attached to each of the punch blocks 51, 51 so that a piston head 60a is connected to the upper end of the punch cutter 53. The air cylinder device 60 is provided when the pair of end sealers 11 of the end seal device 10 are moving in synchronism with the film speed across the products of the packaging tube H. When the punch guide cylinder 52 presses the upper surface of the edge of the packaging cylinder H by operating 60, the punch cutter 53 descends and fits into the die 54 to cut off the four corners c, c,... Of the bag. It is intended to provide a horizontal bag-making filling and packaging apparatus for a four-sided sealed flat bag, characterized in that: An end sealer 11, which performs two box motions by stacking two packaging films F and feeding flat products between the films at regular intervals, and sealing both edges of the films to form a flat packaging cylinder H. When moving to the downstream side while performing end-seal between the products of the packaging tube H in synchronization with the film speed on the upstream side, the end seal device 10 receives the power transmission of the horizontal component of the box motion and is movable. During the forward movement of the table 40, the air cylinder device 60 performs the extension operation → the contraction operation. Therefore, the punch cutter 53 is lowered by the air cylinder device 60,
The punch guide cylinder 52 is lowered via the spring 56 prior to the punch cutter 53 to hold the upper surfaces of the edges on both sides in the width direction of the packaging cylinder H. Subsequently, the punch cutter 53 is lowered and fitted into the die 54 so that the end is formed. Punch cut the edges f, f on both sides in the width direction of the packaging tube H so that the top of the mountain is located at the center of the sealing width of the sealed packaging tube H,
Subsequently, the cutting device 30 cuts the center of the seal width cut into a mountain shape. Therefore, the four corners c, c, ...
The horizontal bag-making filling and packing of the cut-out four-side seal flat bag is performed. An embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. In the apparatus of this embodiment, the packaging film F is folded or overlapped, and both edges of the film are side-sealed to form a flat packaging cylinder H, and flat products are fed at regular intervals. Perform a box motion of approaching each other at the upstream position and synchronizing with the film speed, sandwiching the products of the packaging tube H, performing heat sealing, moving downstream, separating from each other at the downstream position, and returning to the upstream side. A rotary cutter (cutting device) 30 for end-sealing between the products of the packaging tube H by the end sealing device 10 and cutting in the seal length direction from the center of the seal width of the end seal portion e, and the bag-forming and filling are performed as described above. A pair of punch cutting devices 50 are provided between the unloading conveyor 70 for unloading the bags and the end seal device 10 and the rotary cutter 30. It has been. As shown in FIG. 1 (a), the end seal device 10 has vertical slides 13, 13 which support both end sealer mounting blocks 12, 12 which are vertically opposed to each other, and are provided on both sides of a frame 14. Horizontal guides 15, 15
The vertical slide 17 is supported by upper and lower ends of horizontal slides 16 and 16 which are guided in the horizontal direction along the film feeding direction and are guided in the vertical direction. It is free and is pivotally attached to the side ends of the vertical slides 13, 13 and has groove cams 18,
The cam followers 19, 19 fitted into the diaper-shaped cam grooves 18a, 18a engraved on the
Slit guide 21 of cranks 21, 21 provided at the ends of crankshafts 20, 20 passed through the center of 18a
The cams 21 and 21 are engaged with the crankshafts 21a and 21a, respectively, and are circulated in the cam grooves 18a and 18a to be drawn around. Further, the crankshafts 20, 20 of the upper and lower end sealers 11, 11 are connected by three external gear trains (not shown), and one of the crankshafts is tuned to the film feed speed by a servomotor (not shown) to drive the gears as required. It is supposed to be. Therefore, a pair of end sealers 11, 11 supported by the end sealer mounting blocks 12, 12 approach each other at the upstream position and synchronize with the film speed to sandwich the products of the packaging tube H to form an end seal (heat seal). Up and down symmetric box motions are performed while moving downstream while moving away from each other at the downstream position and then returning to the upstream side. The frame 14 of the end seal device 10 is provided with an apron 82 for placing and supporting the packaging cylinder. As shown in FIG. 1 (a), the cutting device 30 employs a rotary cutter, and has a pair of cutter mounting shafts 31, provided vertically above and below a flat packaging tube H.
A wrapping cylinder presser 32 and a cutter 33 are provided on one of the 31, and a wrapping cylinder presser 34 is provided on the other cutter mounting shaft 31. And is rotated at a variable speed using a servo motor (not shown) as a drive source to cut the center of the seal width of the end seal portion e. The movable table 40 is shown in FIGS. 1 (a) and 1 (b).
As shown in the figure, the lower surfaces of both ends, which are required to be long in the direction perpendicular to the film feeding direction and extend laterally from the film edges f, f, are mounted and fixed to a pair of horizontal sliders 41, 41. The pair of horizontal sliders 41, 41 are engaged and guided by a pair of horizontal guides 43, 43 provided on a pair of brackets 42, 42 extending below both sides of the frame 14 in the packaging tube feeding direction. , Each horizontal slider 4
The horizontal slider 1 of the end seal device 10 is inserted into a small hole formed in a lower portion of the punch cut position fixing plates 44, 44, whose both ends are fixed by screws B, B on the side surfaces of the end seal device 10, 41.
Screw portions 45 of connecting rods 45, 45 connected to 6, 16
The end portions a and 45a are inserted and fixed by the nuts 46, 46, so that the end portions are connected to the horizontal sliders 16, 16 of the end seal device 10 so as to be adjustable in distance. Therefore, the movable table 40 receives the reciprocating motion transmission of the horizontal component of the box motion of the end seal device 10. As shown in FIG. 1 (b), a pair of punch cutting devices 50, 50
The ball screw 47 mounted on the movable table 40 is mounted and fixed on a pair of nut runners 48 and 48 screwed to right and left threaded portions 47a and 47b, respectively, and is provided at one end of the ball screw 47. By turning the handle 49, it approaches in the width direction of the packaging tube H based on the width center.
It is attached so that the separation can be adjusted. The pair of punch cutting devices 50, 50 are provided with a pair of punch blocks 5 capable of adjusting the approach / separation described above.
1 and 51, and one edge f of the packaging tube H is inserted into a slit 51a formed in the punch block 51 horizontally.
And a die 54 is attached to a portion 51b below the slit 51a of each punch block 51, and a punch guide cylinder 52 is inserted into a vertical hole formed in an upper portion 51c above the slit 51a. Are fitted slidably up and down and the punch guide cylinder 52 is urged away from the dies 54 by a weak spring 55, and a punch cutter 53 is fitted into the cylinder hole of the punch guide cylinder 52 slidably up and down. The punch cutter 53 is urged away from the die 54 by a strong spring 56, and has a chip chute 57 below the die 54. The punch guide cylinder 52 has a flange portion 52a at an upper end and is lifted up by a spring 56. The punch cutter 53 has a pressing plate 58 at an upper end.
And can be pulled up by the spring 55. The distance from the center of the seal width of the end sealer 11 to the center of the punch cutter 53 is adjusted to the length of one bag by adjusting the nuts 46, 46. The horizontal cross-sectional shape of the tip of the punch cutter 53 of this embodiment and the punch cutter through-hole of the die 54 attached to the punch block 51 have an arcuate slope and a mountain shape that rises and are end-sealed. The packaging tube H may be cut inwardly inwardly at the edges f, f on both sides in the width direction such that the top of the mountain is located at the center of the seal width of the packaging tube H, thereby forming the four corners c, c of the bag. c, ...
Can be cut in an arc shape. The shape of the tip of the punch cutter 53 and the shape of the die 54 are not limited to the illustrated chevron shape, and the four corners c, c,... Of the bag may be cut by a straight line of 45 degrees. The air cylinder device 60 is mounted on a cylinder mounting portion 51d formed above the punch block 51. The piston head 60a is connected to the upper end of the punch cutter 53 by a joint J. When the pair of end sealers 11 of the end seal device 10 synchronize with the film speed and sandwich the products of the packaging tube H, the air cylinder device 60 has a detection projection 80 provided on one end sealer 11. Is close to the gap sensor 81 provided on the frame 14, the gap sensor 81
Reacts based on the detection signal of the gap sensor 81,
An electromagnetic valve (not shown) is driven to open, and air is supplied from an air supply source. Accordingly, when the pair of end sealers 11, 11 sandwich the product of the packaging tube H, the extension operation is performed, and the end sealer is moved to the downstream side to perform the reducing operation before releasing the clamping of the packaging tube H. The operation of the horizontal bag making / filling / packaging apparatus for a four-sided sealed flat bag constructed as described above will be described. Two sheets of packaging film F are overlapped and a flat product is fed between the films at regular intervals, and both edges of the film are side-sealed to form a flat packaging cylinder H. When moving to the downstream side while performing end sealing while sandwiching the products of the packaging tube H in synchronization with the movement of the movable table 40 receiving the power transmission of the horizontal component of the box motion of the end sealing device 10 Then the air cylinder device 60 is extended →
Perform the reduction operation. For this reason, the punch cutting device 50
When the punch cutter 53 is pressed down, the pressing plate 58 is moved through the spring 56 so that the flange portion 52 of the punch guide cylinder 52 is
a, the flange portion 52a compresses the spring 55 and descends, so that the punch guide cylinder 52 descends via the spring 55 before the punch cutter 53, and the end seal portion of the packaging cylinder H Then, when the punch cutter 53 is further pressed down, the pressing plate compresses the spring 56 and descends, so that the punch cutter 53 fits into the die 54. The package H is punch-cut into a mountain shape such that the top of the mountain is at the center of the seal width at both ends of the end seal portion e. Subsequently, the cutting device 30 cuts the center of the seal width cut into a mountain shape. Thus, the horizontal bag-making filling and packaging of the four-sided seal type flat bag from which the four corners c, c,. As described above, according to the horizontal bag making / filling / packaging apparatus for a four-sided sealed flat bag according to the present invention, the bag is prevented from being cut off at the corner of the bag. It can be a four-sided seal type flat bag with four corners cut off, the distance between a pair of punch cut devices can be adjusted according to the bag width, and the distance from the end seal device can be adjusted according to the bag length. It is versatile enough to accommodate a four-sided seal flat bag.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 relates to a horizontal bag-making filling and packaging apparatus for a four-sided sealed flat bag according to an embodiment of the present invention.
(B) is an Ib-Ib diagram in (a), and (c) is a plan view showing a state where four corners of the four-sided sealed flat bag are cut off. FIG. 2A is a vertical sectional front view of an essential part showing an operation step following FIG. 1A, and FIG. 2B is a vertical sectional front view of an essential part showing an operation step following FIG. [Description of Signs] F: Packaging film, H: Packaging cylinder, c: Corner of bag f: Edge of packaging cylinder 10: End seal device, 11: End sealer, Reference Signs List 30 cutting device 40 movable table 50 punch cutting device 51 punch block 51a slit 51b lower portion of slit 51c slit Upper part, 52: punch guide cylinder, 53: punch cutter, 54: die, 55: spring, 56: spring, 60: air cylinder device, 60a: piston head,

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65B 9/00-9/24 B65B 25/00 B65B 25/14 B65B 51/10

Claims (1)

(57) [Claims] [Claim 1] A packaging film is overlapped and both edges of the film are side-sealed to form a flat packaging tube, and flat products are fed between the films at regular intervals, and a vertically symmetric box is provided. In a horizontal bag-making filling and packaging device that performs end-sealing between products of the packaging cylinder by an end-sealing device that performs motion, and cuts in a seal length direction from a center of a seal width of the end seal by a cutting device, the end-sealing device and the Between the cutting device and the end seal device, the length of the box motion of the horizontal motion of the box motion of the end seal device is adjusted freely connected to the required position, and the bag is separated from the end seal device by one bag and extends in the film width direction. A movable table is provided, and at both ends on the movable table, the package is attached to the movable table so as to be able to approach and separate from each other, and a package is provided. It has a pair of punch blocks that are adjusted to a required interval according to the width dimension of the cylinder, and one end of the packaging cylinder is inserted into a slit that is horizontally engraved in each punch block. A die is attached to the lower part of the slit, and a punch guide cylinder is slidably fitted in a vertical hole formed in the upper part of the slit, and a punch cutter slides up and down in the cylindrical hole of the punch guide cylinder. A pair of punch cutting devices, which are fitted to each other and are urged away from the dies by a spring, so that a piston head is attached to each punch block and a piston head is provided at an upper end of the punch cutter. And an air cylinder device connected to the end seal device. When the air cylinder device is operated and the punch guide cylinder presses the upper surface of the edge of the packaging cylinder while the film is tuned to the film speed across the product, the punch cutter descends and fits into the die. A horizontal bag-making filling and packaging apparatus for a four-sided sealed flat bag, wherein the four corners of the bag are cut off.