JP2004231202A - Vertical bag making and filling machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical bag making and filling machine capable of supporting a former so that the distance from a lower end of the former of different size to the end seal position is substantially constant, adjusting a guide roller to place a film along the former to an optimum position to the size of the former, and reducing the dropping distance of a filling stuff. <P>SOLUTION: The vertical bag making and filling machine in which a film drawn from a film reel is formed into a cylindrical shape by a former, joined surfaces thereof are sealed, and upper and lower portions are end-sealed to seal the content therein comprises a former supporting means 30 to support the former to the size of the former so that the distance from a lower end of the former 41 to the position of the end seal is substantially constant, and a guide roller supporting mechanism 50 which supports the guide roller 56 to place the film 3 along the former in an adjustable manner to the height of a film feeding port of the former 41 and so as to allow the film to travel on the inner side of the tangential direction of the former. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical bag making and filling machine.
[0002]
[Prior art]
Bag-packed packaging is the most commonly used packaging form, which is made from roll-up packaging materials, made from bags, filled with contents, sealed, cut, and discharged, and is a vertical product that shifts the process from top to bottom. A bag filling machine is used. FIG. 7 shows an example of a vertical bag making and filling machine. The vertical bag making and filling machine 1 pulls out a film 3 as a packaging material from a film reel 2, runs on the upper side of a plurality of guide rollers 4, and the last guide roller. 5 is guided to the upper surface of the skirt portion 6a of the former 6, wound around the cylinder 7 and formed into a cylindrical shape, the mating surface is sealed with the vertical sealer 8, and pulled out by the left and right feeding belts 9 End seal the lower end with the horizontal sealer / cutter 10 and fill the contents through the cylinder 7. End seal and cut the upper end and the lower end of the next cylinder at the same time with the horizontal sealer / cutter 10. The packaging bag (product) 11 filled with the product is discharged.
[0003]
By the way, the guide roller 5 for smoothly supplying the film 3 to the skirt portion 6a of the former 6 is disposed close to the tip of the skirt portion 6a. Since it becomes an obstacle when it is mounted, it is retracted to a position where it does not get in the way of these operations. However, it is necessary to set and reset the guide roller 5 each time, and the operation is troublesome and the workability is improved. There is also a problem of being bad.
[0004]
Therefore, when using different size formers, that is, when using a large size former 6 or a small size former 6 ′ as shown in FIG. 8, the guide rollers 5 and the tips of the skirt portions 6a, 6′a ( The guide roller 5 is horizontally moved back and forth from the position indicated by the dotted line to the position indicated by the solid line so that the distance between the film input port 6b or 6'b is the same, and the film 3 is attached or the former 6 , 6 'is intended to improve workability during replacement work (see, for example, Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent No. 2934067 [0006]
[Problems to be solved by the invention]
However, in the above configuration in which the guide roller 5 is horizontally moved in the front-rear direction with respect to the tip 6b of the skirt portion 6a of the former 6, the height position of the guide roller 5 is constant as shown in FIG. Even when the formers 6 or 6 'having different sizes are used, the heights of the skirt portions 6b and 6'b of these formers 6 and 6' (the inlet height of the film 3) must be constant. That is, the height position of the guide roller 5 is set in accordance with the height position of the skirt end 6b of the large size former 6, and the height of the former 6 is set to B and the horizontal sealer cutter 10 from the lower end 6c. Assuming that the distance to the upper surface of the former is A, in the case of the former 6 ′ having a small former height C (<B), the former 6 ′ is arranged in accordance with the height position of the guide roller 5 and the tip of the skirt portion 6'b is adjusted to the height position of the skirt portion 6b of the large size former 6.
[0007]
For this reason, in a small-sized former 6 ′, the distance from the lower end 6′c to the upper surface (end sill position) of the horizontal sealer cutter 10 becomes longer (A + X), and the drop distance X is not necessary and is dropped excessively. It becomes. When the falling distance of the filling (contents) becomes long, the drop impact increases accordingly, and there is a possibility that the filling may be damaged. Further, when the drop distance is increased, the filling time is increased accordingly, and there is a problem that the filling time is lost and the productivity is lowered.
[0008]
The present invention has been made in view of the above points, and supports a guide roller for supporting the film so that the distance from the lower end of the former having different sizes to the end seal position is substantially constant, and for bringing the film along the former. It is an object of the present invention to provide a vertical bag making and filling machine that can be adjusted to an optimal position according to the size of the product and that can reduce the falling distance of the filling.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, the film drawn from the film reel is formed into a cylindrical shape by a former, the mating surfaces are sealed, and the upper and lower ends are sealed to seal the contents. A bag filling machine for supporting the film in accordance with the size of the former so that the distance from the lower end of the former to the position of the end seal is substantially constant; The guide roller is adjustable in accordance with the height of the film inlet of the former, and is provided with a guide roller support mechanism for supporting the film so as to run inward from the tangential direction of the former.
[0010]
According to the vertical bag making and filling machine of claim 1, even when a former having a different size is used by the former supporting means, the distance from the lower end of the former to the end seal position is adjusted to be substantially constant according to the size of the former. To support. Thereby, the distance (falling distance) from the lower end of the former to the end seal position can be made the same. The guide roller support mechanism positions the guide roller so as to be in an optimum position with respect to the height of the film input port of the former according to the size of the former. That is, for a large size former, the guide roller is positioned below the film inlet of the former, and for a small size former, the guide roller is positioned in front of and below the former film inlet, and the film is Supply from inside (downward) of former tangent. Thereby, the filling height of the small size former can be lowered, and the falling distance of the filling can be shortened.
[0011]
According to a second aspect of the present invention, the former support means includes a frame body that supports the former, and a support member that fixes the frame body to a main body of the vertical bag making and filling machine. Alternatively, the frame can be attached to the main body in an inverted posture, and the frame body is supported in the upright or inverted posture according to the size of the former. According to the vertical bag making and filling machine of claim 2, when a large size former is used, the frame is fixed by installing the support member in an upright posture, and the small size former is used. When doing so, the frame is fixed by installing the support member on the main body in an inverted posture. Thereby, even when the formers having different sizes are used, the distance (falling distance) from the lower end of the former to the end seal position can be made the same. Further, the height of the filling port of the small-sized former can be lowered by the difference of the height between the upright posture and the inverted posture of the support member, and the falling distance of the filling material can be shortened. .
[0012]
According to a third aspect of the present invention, the guide roller is configured to move the lateral direction with respect to the traveling direction of the film from the outside of the main body of the vertical bag making and filling machine, the guide for restricting both sides of the film. And a meandering adjusting means for adjusting the meandering of the film to be supplied.
According to the vertical bag making and filling machine of the third aspect, the film drawn from the film reel is supplied to the former with its left and right side portions regulated by the guide of the guide roller. The meandering of the film supplied to the former is adjusted by adjusting the guide roller laterally with respect to the running direction of the film by meandering adjusting means. This meandering adjustment can be carried out from the outside of the main body to adjust the flow while the bag making and filling machine is operating.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a plan view of a former position of a vertical bag making and filling machine according to the present invention, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1, and FIG. 3 is taken along the line III-III in FIG. It is a partially cutaway sectional view along. As shown in FIGS. 1 to 3, a main body 21 of the vertical bag making and filling machine 20 is provided with a former support means 30 and a guide roller support mechanism 50. The former support means 30 includes a frame body 31 that supports the former and a support member 32 that fixes the frame body 31 to the main body 21. The frame body 31 is configured by fixing an upper plate 34 and a lower plate 35 to upper and lower ends of left and right support columns 33. The upper plate 34 is provided with a hole 34a in the center, and shaft holes 34b are horizontally formed on the left and right sides of the hole 34a from the front end surface to the rear end surface. A knob 37 for attaching / detaching the frame 31 to / from the support member 32 is rotatably attached to the rear end of the shaft hole 34b. The width of the lower plate 35 is approximately half that of the upper plate 34, and a semicircular cutout 35 a is provided at a position corresponding to the hole 34 a of the upper plate 34.
[0014]
The former 41 is a large size former, and a lower end 41c is placed and fixed on the peripheral edge of the notch 35a of the lower plate 35. The upper end of the cylinder 42 is fitted and fixed to the hole 34a of the upper plate 34 so as to be flush with the upper surface, and the lower portion is concentrically loosened through the former 41 with a gap corresponding to the film thickness of the film 3. Extending a predetermined length downward.
[0015]
As shown in FIG. 5, a small-sized former 45 and a cylinder 46 are also attached to a frame 31 ′ configured in the same manner as the frame 31. The frame 31 ′ has the same configuration as the frame 31 except that the frame 31 ′ is lowered according to the height of the former 45 having a smaller size than the frame 31. In addition, the code | symbol corresponding is attached | subjected to the member corresponding to the frame 31 of frame 31 '. The cylinder 46 extends from the lower plate 35 ′ of the frame body 31 ′ to substantially the same length as the cylinder 42. The large-size former 41 and the cylinder 42 shown in FIG. 3 and the small-size former 45 and the cylinder 46 shown in FIG. 5 can be exchanged together with the frame bodies 31 and 31 ′ supporting them.
[0016]
As shown in FIG. 3, the support member 32 has a substantially L shape in a side view, and a plurality of bolt holes for attachment are provided in the main body 21 at the peripheral edge of the horizontal portion 32 a. A vertical portion 32b as an attachment portion of the frame body 31 is formed with a hole 32c corresponding to the left and right shaft holes 34b of the upper plate 34, and the base end of the support shaft 38 is fitted and fixed with a nut. ing. The support shaft 38 can be inserted into the shaft hole 34b of the upper plate 34. The length of the support shaft 38 is shorter than that of the shaft hole 34b, and a screw hole 38a is provided on the tip surface. Then, the support member 32 is turned upside down according to the size of the former to be used, that is, the upright posture in which the vertical portion 32b is located at the top and the inverted posture in which the vertical portion 32b is located at the bottom (FIG. 5). ) And can be selectively attached. The support member 32 has a horizontal portion 32a mounted on the rear end of the main body 21 and is detachably fixed with bolts.
[0017]
As shown in FIG. 3, the support member 32 is attached in an upright posture with the vertical portion 32 b facing upward when a large-size former 41 is used. The frame 31 has a support shaft 38 inserted through the shaft hole 34b of the upper plate 34, and the screw portion 37a at the tip of the knob 37 is screwed into the screw hole 38a at the tip, thereby being fastened and fixed. In the case of using a small-sized former 45, the support member 32 is attached in an inverted posture with the vertical portion 32b facing downward as shown in FIG. 5, and the frame 31 ′ is attached in the same manner as the frame 31. .
[0018]
As a result, the large former 41 and the small former 45 are attached to the support member 32 as shown in FIG. 6, and the same distance (high) from the lower ends 41 c and 45 c of these formers 41 and 45 to the horizontal sealer / cutter 10. A) A. The support member 32 can be attached to the main body 21 by turning the vertical portion 32b upside down, so that a height difference of about twice the height of the vertical portion 32b can be obtained, regardless of the size of the former. The height (fall distance) from the lower end of the former to the horizontal sealer / cutter (end seal position) 10 can be made the same distance. Thereby, it is possible to cope with various sizes of formers with one support member 32.
[0019]
As shown in FIG. 2, the guide roller support mechanism 50 is disposed on the upstream side of the main body 21 so as to be spaced apart and can adjust the guide roller 56 to an optimum position according to the size of the former. As shown in FIG. 4, the guide roller support mechanism 50 includes a frame body 51 supported by the main body 21 so as to be swingable in the vertical direction, and is disposed parallel to and horizontally at the upper and lower ends of the frame body 51 so as to be rotatable. The first and second guide rollers 55 and 56 are supported, a handle 57 as a positioning means for positioning the guide roller 56, a grip 58 as a meandering adjusting means for adjusting the meandering of the guide roller 56, and the like. .
[0020]
As shown in FIG. 4, the guide roller 55 has a cylindrical shape, and both left and right ends are rotatably supported by bearings at the base end of the shaft 53 via bearings. These shafts 53 support the left and right sides of the frame 51. The shaft 52 is rotatably supported by a shaft hole 52a in the vicinity of the upper end of the frame 52, and the tip protrudes sideways. A screw hole 52b that opens perpendicularly to the shaft hole 52a is formed in the upper end surface of the support frame 52 on one side, and a screw portion 57a at the tip of the handle 57 is screwed. When the handle 57 is loosened, the tip of the screw portion 57 a is separated from the outer peripheral surface of the shaft 53 to enable relative rotation between the support frame 52 and the shaft 53, and when tightened, the tip of the screw portion 57 a is pressed against the outer peripheral surface of the shaft 53. Thus, the support frame 52 and the shaft 53 are fixed.
[0021]
The guide roller 56 has a cylindrical shape, and a shaft 59 penetrates in the center, and both left and right ends are rotatably supported by the shaft 59 via bearings. One end of the shaft 59 is pivotally supported in the shaft hole 52 c near the lower end of the support frame 52 so as to be slidable in the axial direction. It is fixed impossible. A screw 58b is formed on the outer peripheral surface of the base end side of the grip 58, and is screwed into a screw hole (shaft hole) 52d of the support frame 52 on one side so as to be movable back and forth in the left-right direction. Thereby, the guide roller 56 can be moved horizontally in the lateral direction (left-right direction) indicated by the arrow by turning the grip 58. The second guide roller 56 also serves as a meandering adjustment roller for adjusting the meandering of the film 3.
[0022]
Guide rings 62 and 63 for guiding the left and right sides of the film 3 are fitted on the guide rollers 55 and 56, respectively. These guide rings 62 and 63 have an inner diameter slightly smaller than the outer diameter of the guide rollers 55 and 56, and are provided with slits in the radial direction so that the diameter can be increased. It is externally fitted and can be moved to any position in the axial direction. These guide rings 62 and 63 are positioned according to the width of the film 3 to guide both sides. The guide rings 62 and 63 are made of an elastic synthetic resin member such as vinyl chloride.
[0023]
The left and right shafts 53 of the frame 51 are horizontally supported by brackets 65 fixed to the left and right frames of the main body 21, respectively, and fixed by screws 66 so as not to deviate. By loosening the handle 57, the frame 51 can turn the left and right support frames 52 with respect to the shaft 53. Therefore, the frame 51 can be turned up and down about the left and right shafts 53 as a rotation axis. By tightening the handle 57 at the rotational position, it can be fixed at the position. The grip 58 is allowed to move in accordance with the rotation of the frame body 51 through the arcuate elongated hole 22a (FIG. 3) provided in the opposing side wall 22 of the main body 21, and the tip 58e is movable in the cover 23. The guide roller 56 can be adjusted to move in the lateral direction from the outside of the main body 21.
[0024]
A shaft 53 as a rotation axis of the frame 51 is lower than the skirt end 41b of the largest size former 41 as shown in FIG. 3, and lower than the upper end of the smallest size former 45 as shown in FIG. It is placed at a high position. As shown in FIG. 3, the film body 3 can be supplied from the lower side of the skirt end 41 b by the guide roller 56 by rotating the frame 51 small for a large size former 41. Further, for the small size former 45, the frame 51 is pivoted upward to position the guide roller 56 in front of and below the skirt portion tip 45b of the former 45, and the film 3 is moved to the skirt portion 45a. It can be supplied to the tip 45b from the inner side (below) of an extension line (hereinafter referred to as “former tangent”) indicated by a two-dot chain line of the inclined surface. Thereby, the film 3 is supplied in close contact with the skirt portions 41a and 45a. In this way, the guide roller support mechanism 50 is mounted on the main body 21.
[0025]
Further, as shown by a two-dot chain line in FIG. 2, film feeding belts 9 are arranged on the left and right sides of the cylinder 42 extending downward, and a vertical sealer (not shown) is arranged in front. These are covered with a cover 23 of the main body 21.
The operation will be described below.
When using a large-size former 41 as shown in FIG. 3, the support member 32 is installed in an upright posture with the vertical portion 32b facing upward, and the frame 31 is fixed, as shown in FIG. When the former 45 having a small size is used, the frame 31 is fixed by installing the support member 32 so that the vertical portion 32b of the support member 32 is turned downward. Thereby, as shown in FIG. 6, the distance (falling distance) A from the lower end 41c of the former 41 or the lower end 45c of the former 45 to the horizontal sealer / cutter 10 becomes the same.
[0026]
A measuring instrument (not shown) for measuring and supplying the filling (contents) is arranged above and below the cylinder 42 or 46 so as to be movable up and down, and the height difference between the upper ends (input ports) of these cylinders 42 or 46 In response to this, it is lifted and positioned (FIG. 6). Thereby, as described above, the height of the filling port of the former 45 having a size smaller than the vertical portion 32b of the support member 32 can be lowered, and the falling distance of the filling can be reduced. Can be shortened.
[0027]
The guide roller support mechanism 50 is positioned and fixed so that the guide roller 56 is in an optimum position with respect to the skirt end 41b or 45b of the former 41 or 45 according to the former 41 or 45 to be used. That is, as shown in FIG. 3, for the large-sized former 41, the frame 51 is rotated to adjust the position of the guide roller 56 below the skirt end 41b, and the film 3 is positioned below the skirt 41b. Supply from. Further, as shown in FIG. 5, for the small size former 45, the frame body 51 is largely rotated upward to position and adjust the guide roller 56 in front of and below the skirt portion tip 45 b of the former 45. Is supplied to the tip 45b from the inner side (lower side) of the former tangent to the skirt portion 45a. In this way, the position of the guide roller 56 is adjusted in accordance with the height of the skirt portion tip (film inlet) 41b or 45b) of the former 41 or 45. Thereby, reliable bag making is performed.
[0028]
The film 3 drawn out from a film reel (not shown) is supplied from the upper side of the guide roller 55 to the skirt portion 41a or 45a of the former 41 or 45 through the lower side of the guide roller 56. At this time, the film 3 is supplied to the former 41 or 45 with its left and right side portions regulated by the guide rings 62 and 63 of the guide rollers 55 and 56. Further, the meandering of the film 3 supplied to the former 41 or 45 is adjusted by adjusting the guide roller 56 laterally by the grip 58. This meandering adjustment can be performed from the outside without opening the cover 23 of the main body 21, and the flow adjustment can be performed while the bag making and filling machine 20 is operating.
[0029]
While the cylindrical shape is formed by the former 41 or 45, the mating surfaces of the side surfaces are sealed by the vertical sealer, the lower end is end-sealed by the horizontal sealer cutter 10 to form a bag, and the filling material is supplied from the measuring device. The upper end is sealed by the rear side sealer cutter 10 and sealed. In the case of the small size former 45, the falling distance of the filling can be shortened, so that the drop impact of the filling can be mitigated, and damage can be prevented particularly in the case of a fragile filling. In addition, the filling time can be shortened.
[0030]
In the above-described embodiment, the case where the present invention is applied to the two types of formers, the large size former 41 and the small size former 45, has been described. However, the present invention is not limited to this, and may be applied to various size formers. Is possible. Even in this case, it is possible to correspond to the formers of various sizes with one support mechanism 32.
[0031]
In the above embodiment, the guide roller support mechanism 50 can be rotated in the vertical direction, and the lower guide roller 56 is positioned optimally with respect to the skirt end (film inlets) 41b and 45b of the formers 41 and 45. However, the present invention is not limited to this, and the guide roller support mechanism 50 is disposed so as to be inclined as shown in FIG. You may comprise so that it may move to diagonally upward toward the inside of a former | tanger of a former.
[0032]
【The invention's effect】
As described above, according to the first aspect of the present invention, even when the formers having different sizes are used, the distance from the lower end of the former to the end seal position can be made the same, and the guide roller according to the size of the former. Can be positioned at an optimum position with respect to the height of the film inlet of the former, so that the filling height of the small size former can be lowered and the falling distance of the filling can be shortened. it can. As a result, the drop impact of the filler can be alleviated and damage to the fragile filler can be prevented, and the filling time can be shortened to improve productivity. In addition, the range of the size of the former is widened, and the equipment cost is reduced, which is economical.
[0033]
In the invention of claim 2, it is possible to easily cope with various sizes of formers with one support member, and even when using different sizes of formers, the distance from the lower end of the former to the end seal position can be easily made the same. can do. Further, it is possible to reduce the height of the filling port of the former having a small size corresponding to the height difference between the upright posture and the inverted posture of the support member, and to shorten the falling distance of the filling material.
[0034]
According to the invention of claim 3, the film drawn from the film reel is supplied to the former with its left and right side parts regulated by the guide roller guide, and the meandering adjustment of the film supplied to the former is performed from the outside of the machine. It is possible to adjust the flow while the bag making and filling machine is in operation, and the safety is improved. Further, since the guide roller also serves as a meandering adjustment roller, the configuration is simple and the cost of the machine can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view of a former and guide rollers of a vertical bag making and filling machine according to the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
3 is a partially cutaway cross-sectional view along the arrow III-III in FIG.
4 is a partially cutaway view of the guide roller support mechanism of FIG. 2. FIG.
FIG. 5 is a cross-sectional view when a small size former is used in FIG. 3;
6 is an explanatory diagram of positioning of guide rollers by a guide roller mechanism when formers having different sizes shown in FIGS. 3 and 5 are used. FIG.
FIG. 7 is an explanatory diagram of a vertical bag making and filling machine.
8 is an explanatory diagram showing a relationship between a former and a guide roller when different size formers are used in the vertical bag making and filling machine shown in FIG.
[Explanation of symbols]
2 Film reel 3 Film 8 Vertical sealer 10 Horizontal sealer cutter 20 Vertical bag making and filling machine 21 Main body 30 Former support means 31 Frame body 32 Support members 41 and 45 Former 42 and 46 Cylinder 50 Guide roller support mechanism 51 Frame bodies 55 and 56 Guide roller 57 Handle 58 Grip (meander adjustment means)

Claims (3)

A vertical bag making and filling machine that seals the mating surfaces while forming the film drawn from the film reel into a cylindrical shape by a former, and further end seals the upper and lower ends to seal the contents,
Former support means for supporting the former according to the size of the former so that the distance from the lower end of the former to the position of the end seal is substantially constant;
A guide roller support mechanism for adjusting a guide roller for placing the film along the former so as to be adjusted in accordance with a height of a film insertion port of the former and for supporting the film to run inward from a tangential direction of the former. A vertical bag making and filling machine characterized by comprising. The former support means comprises a frame that supports the former, and a support member that fixes the frame to the main body of the vertical bag making and filling machine.
2. The vertical type according to claim 1, wherein the support member is attachable to the main body in an upright or inverted posture, and supports the frame body in the upright or inverted posture according to the size of the former. Bag making and filling machine. The guide roller is a guide that regulates both sides of the film, and a meandering adjustment of the film that is moved laterally with respect to the traveling direction of the film from the outside of the main body of the vertical bag making and filling machine and supplied to the former 2. The vertical bag making and filling machine according to claim 1, further comprising meandering adjusting means for performing the following.

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