JP2012030870A - Bag making device in horizontal bag making filling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag making device excellently forming films into cylindrical shape in accordance with the different size of bags.SOLUTION: The bag making device includes an upper divided body 16 and a lower divided body 11 each of which is configured in such a manner that guides 5 forming a forming path to form a film can come close to and separate from each other vertically. When the upper divided body 16 is elevated by a height adjusting means for elevating the upper divided body 16 with respect to the lower divided body 11 at a predetermined tilt angle, the tension length of a cord member 19 is changed by a slope part 19a at an angle roughly similar to the tilt angle of the slope 19a. When both ends of a beltlike film is pulled into the forming path, a transition part from guide members 30 and 31 to a slope side 27 is used as a base point for regulating the height of the upper wall part of a film formed into a cylindrical shape.

Description

  The present invention relates to a bag making apparatus for forming a belt-like film into a cylindrical shape in a horizontal bag making and filling machine.

  As a bag making apparatus for guiding a belt-like film transferred from below at an oblique side formed at the entrance of a film guide path in a bag making means and polymerizing both end edges of the film upward to form a cylindrical shape, Patent Literature As shown in FIG. 1, there is known a bag making apparatus capable of expanding the width of the film guide path and adjusting the opening of the tubular film to a size corresponding to the change in the lateral width of the bag.

JP-A-8-26205

  However, the bag making apparatus of Patent Document 1 does not include a bag height adjusting means, and forms from the oblique side in the vertical direction on the inlet side to the overlapping portion of the film for bag sizes having different heights. There was a problem that the upper part of the film was pulled in the process, and the film could not be satisfactorily performed. For example, when using a firm film containing materials such as aluminum and Japanese paper, etc., the upper wall (surface) of the film until it is formed into a cylindrical shape in the process of transporting the film that polymerizes both edges of the film There is a problem that the stacking posture is disturbed by contact with the upper wall of the tubular film that is hung down and the stacked articles fed into the film are not fixed in height.

  An object of the present invention is to provide a bag making apparatus that can satisfactorily form a film into a cylindrical shape corresponding to different bag sizes in a horizontal bag making and filling machine.

  The bag making apparatus of the horizontal bag making and filling machine according to the invention of claim 1 is configured to superpose both end edges 1a of the belt-like film 1 conveyed upward from below to form a cylinder. A guide body 5 that forms a forming path 6 for forming the film 1 and approaches and separates left and right by the width adjusting means; an upper divided body 16 and a lower divided body 11 that each guide body 5 is configured to be able to approach and separate vertically; A height adjusting means for moving the upper divided body 16 up and down at a predetermined inclination angle with respect to the lower divided body 11, a side plate 24 of the lower divided body 11 constituting the inlet of the molding path 6, and a side from the side plate 24. Are formed between the bottom plate 25 extending to the side and the side plates 16a, 24 of the upper divided body 16 and the lower divided body 11 with an upward slope from the inlet of the molding path 6 toward the outlet side. A string-like member forming an inclined portion 19a capable of guiding the belt-like film 1 drawn in 9, a guide member 31 that is disposed on the upper divided body 16 and curves and winds the string-like member 19, and is looser than the above-described inclination angle upward from the winding portion of the guide member 31 above the string-like member 19. Each has a hypotenuse 26 extending at an inclination angle. When the upper divided body 16 is moved up and down by the height adjusting means, the stretched length of the string-like member 19 is changed to the inclined portion 19a at substantially the same angle as the inclined angle of the inclined portion 19a. The base point for regulating the height of the upper wall portion of the film 1 for forming the transition portion from the guide members 30 and 31 to the oblique side 27 when the both end edges 1a of the belt-like film 1 are drawn into the forming path 6 I was able to do it.

  According to the first aspect of the present invention, the direction of the film 1 in contact with the inclined portion 19a of the string-like member 19 changes from the guide member 31 to the base point, and the film 1 is attracted locally by the inclined portion 19a of the string-like member 19. The film 1 that is guided without being applied is satisfactorily drawn into the forming path 6 without being damaged, and is guided along the left and right and bottom portions of the forming path 6, and the guide member 31 and the upper divided body 16. The film 1 in contact with the hypotenuse 26 is folded back without being scratched and guided toward the position where the film 1 is polymerized, and the upper edge 1a of the film 1 forms a polymer edge where the two edges 1a are superposed on each other. . Moreover, the opening state of the film 1 obtained by the molding path 6 can be made favorable by setting the height position of the guide member 31 to an appropriate position by adjusting the height corresponding to bags of different sizes.

  In the invention of claim 2 premised on the invention of claim 1, the guide member 31 includes a groove portion 34 in the outer peripheral edge portion 33, and an edge portion of the string-like member 19 protrudes from the groove portion 34 so as to be curved. It is wrapped around In the second aspect of the present invention, the film 1 guided at the transition portion from the inclined portion 19a to the hypotenuse 26 is not formed with corner portions, and is smoothly drawn without causing bag-making folds or breakage.

  In the invention of claim 3 based on claim 1 or claim 2, the height adjusting means moves up and down along the inclination angle of the link mechanism connected to the upper divided body 16 and the inclined portion 19a. The slide guide 15a and the rotation shaft 9 of the link mechanism are provided. In the invention of claim 3, by rotating the rotation shaft 9, the upper divided body 16 is moved up and down by the link mechanism, and the upper divided body 16 can be easily moved and positioned with respect to the lower divided body 11. it can.

  In the invention of claim 4 based on any one of claims 1 to 3, a film guide 39 for winding and guiding the both edges 1a of the belt-like film 1 is disposed in the forming path 6, The film guide 39 faces the upper winding member 37a and the lower winding member 37b extending from the entrance to the exit side of the forming path 6 and the upper and lower winding members 37a and 37b. And a movable winding member 38 that is disposed at a predetermined inclination from the center to the outlet side and that is configured such that the end portion on the outlet side can be approached and separated from the center of the molding path 6. The upper edge portion of the film 1 to be shaped is positioned and held. In the invention of claim 4, since the film 1 drawn into the forming path 6 is wound and guided by the film guide 39, the upper wall portion of the film 1 does not hang down excessively and is positioned in a positioned state. A cylindrical film having a rectangular tube shape can be obtained.

  The invention according to claim 5, which presupposes any one of the inventions according to claims 1 to 4, wherein the width adjusting means is rotatably disposed on a fixed base 7 disposed below the bottom plate 25. The guide shaft 5 is provided with a screw shaft 8 that approaches and separates each guide body 5, and a guide shaft 28 that is inserted through the fixed base 7 and arranged parallel to the screw shaft 8 to guide the movement of each guide body 5. In the invention of claim 5, the width of each guide body 5 can be easily adjusted by rotating the screw shaft 8.

  In the invention of claim 6, which presupposes any one of the inventions of claims 1 to 5, the guide state from below of the belt-like film 1 conveyed toward the entrance of the forming path 6 from below can be changed. A guide 21 was provided. In the invention of claim 6, the guide state of the strip film 1 to the forming path 6 can be varied by the introduction guide 21.

  In the horizontal bag making and filling machine, the film can be formed in a state where the film is opened along the peripheral wall of the film forming path corresponding to different bag sizes. Thus, it is possible to provide a bag making apparatus that can secure the height by suppressing the sagging of the upper wall portion of the film that is molded up to the polymerization site, and can perform stable film molding.

The side view which shows the state which the upper and lower division bodies approached in the bag making means. The top view of FIG. The front view of FIG. The side view which shows the state which the upper and lower division bodies separated in this bag making means. The general | schematic fragmentary enlarged view which shows the film return state in a film guide. (A) is a side view which shows the shaping | molding state of the film by a bag making means, (b) is a top view similarly, (c) is a front view similarly, (d) is the elements on larger scale of a guide member.

Preferred embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 6 (a), 6 (b), and 6 (c), the horizontal bag making and filling machine in the present embodiment is such that the belt-like film 1 drawn from the raw roll (not shown) through the guide roll 2 is from below. It is conveyed upward, and is formed into a cylindrical shape by the bag making means 3 so that both end edges 1a are superposed on the top, and the end edges 1a of the film 1 formed into a cylindrical shape are vertically aligned with the overlapped polymerization edge. A seal is applied. In the film 1, articles (not shown) are supplied at predetermined intervals by a supply conveyor (not shown) disposed upstream of the bag making means 3, and the articles 1 are fed horizontally between the articles supplied in the film 1. A pillow package is obtained by sealing and cutting. The bag making means 3 includes a pair of guide bodies 5 disposed on the left and right sides in the width direction orthogonal to the film transport direction, and draws and guides the belt-like film 1 between the guide bodies 5 to form a cylindrical shape. The belt-like film 1 transferred from below toward the molding path 6 is formed on the downstream side along the inner wall portion of the molding path 6 formed by the inner surface of each guide body 5. Guided and formed into a cylinder.

  As shown in FIGS. 1-3, both the said guide bodies 5 are supported so that both the guide bodies 5 may be approached and spaced apart with respect to the fixed base 7 by the below-mentioned width adjusting means, and the left-right width of the molding path 6 can be adjusted, A screw shaft 8 in the width adjusting means and a rotating shaft 9 disposed in parallel with the screw shaft 8 are rotatably supported on the fixed base 7. Both guide bodies 5 are attached to the outer side of the side wall 10b of the support member 10 and the lower divided body 11 including the guide piece 12 attached to the support member 10 via the mounting plate 10a. A movable base 13, an arm 14 disposed on the movable base 13, a moving body 15b disposed so as to be movable with respect to a slide guide 15a inclined obliquely upward toward the back side at an intermediate portion of the arm 14, and a movement The upper divided body 16 to which the body 15b is attached, the lever 17 and the interlocking link 18 respectively connected between the upper and lower divided bodies 11 and 16, and the upper and lower divided bodies 11 and 16 are respectively supported by the molding. A string-like member 19 (not shown in FIGS. 2 and 3) that forms an inclined portion 19 a that draws and guides the film 1 at the entrance of the path 6, and an introduction that is disposed on the side wall 10 b of the support member 10 via a bracket 20. Each of the guides 21 is configured.

  The molding path 6 is connected to an upper end of the side wall 10b of the support member 10 in the lower divided body 11 and a bottom support plate 22 that is disposed on the fixed base 7 and extends from the entrance to the exit side of the molding path 6. A bottom wall 23 extending horizontally in the molding path 6 with a predetermined width and overlapping the lower portion of the bottom support plate 22 and extending from the inlet to the outlet with the same length as the bottom support plate 22; An inner wall portion formed by the side plate 24 constituting the inlet and the bottom plate 25 extending laterally from the side plate 24, the bottom plate 25 being formed by the guide piece 12 overlapping the upper portion of the bottom wall 23, and the upper division The body 16 is formed by an inner peripheral wall formed by an inner wall portion of the side plate 16a.

  The side plate 16a in the upper divided body 16 is provided with a first hypotenuse 26, and the guide piece 12 in the lower divided body 11 is provided with a second hypotenuse 27, which are inclined upward from the inlet of the molding path 6 toward the outlet side. It is formed with an inclined straight hypotenuse.

  The introduction guide 21 includes a guide bar 21 a that guides the strip-shaped film 1 that is fed into the molding path 6 from obliquely below, which is the back side from the entrance of the molding path 6. One end faces a position close to the lower side of the hypotenuse 27 of FIG. 2 and extends obliquely downward from the entrance of the molding path 6 toward the back side, and the pair of guide bars 21a extends downward in a C shape. It arrange | positions in this way and it guides so that the strip | belt-shaped film 1 conveyed toward the upper direction from the downward direction may be drawn in in the molding path 6. FIG. The position of each guide bar 21a is changed by, for example, a slot according to various conditions such as film properties such as film material, thickness or width, and the position of the guide roll 2 disposed below the entrance. Thus, the mounting posture with respect to the bracket 20 or the support member 10 can be adjusted. Specifically, the bracket 20 is supported on the side wall 10b of the support member 10 so as to be pivotable in the vertical direction, and the inclination angle toward the back side can be adjusted. The bar 21a is supported so as to be pivotable in the left-right direction so that the downward expansion amount that expands in the C-shape can be adjusted, and the guide bar 21a is configured to be movable in the vertical direction with respect to the bracket 20. Thus, by configuring the extension position of the lower end of the guide bar 21a to be adjustable, the guide state from below of the belt-like film 1 conveyed toward the entrance of the forming path 6 from below can be varied.

  In the width adjusting means, each of the screw shaft 8, the rotating shaft 9, and the guide shaft 28 parallel to the screw shaft 8 penetrates the movable table 13 and extends to one side of the width direction. A handle 8a is attached to the end. The screw shaft 8 is integrally rotated by the operation of the handle 8a, and each guide body 5 provided with the movable base 13 is rotated by the screwing action of the male screw portion of the screw shaft 8 and the female screw portion of the movable base 13. Guided by the shaft 9 and the guide shaft 28, the width of the molding path 6 is increased or decreased by approaching and separating in the width direction.

  In the height adjusting means, a handle 9a is disposed at one end of the rotation shaft 9, and a lever 17 is disposed on the rotation shaft 9 so as to be integrally rotatable. By the forward / reverse rotation operation of the handle 9a, the upper divided body 16 moves between the lowered position shown in FIG. 1 and the raised position shown in FIG. 4 along the inclination angle of the slide guide 15a by the interlocking link 18 connected to the lever 17. Go up and down. The movable base 13 is provided with a tightening portion 29, and each guide body 5 positioned by the width adjusting means and the height adjusting means after both the screw shaft 8 and the rotating shaft 9 are adjusted to rotate. Each divided body 11 and 16 can be locked so as not to move.

  A lower guide member 30 is rotatably disposed on the outer side of the side plate 24 in the lower divided body 11 in the vicinity of the upper end portion 27a of the second hypotenuse 27, and on the outer side of the side plate 16a in the upper divided body 16. In the vicinity of the lower end portion 26a of the oblique side 26, an upper guide member 31 is rotatably disposed. Further, an auxiliary guide member 32 is rotatably disposed at an obliquely upper position downstream of the upper guide member 31. The lower guide member 30 and the upper guide member 31 are rotatably disposed on the side plates 24 and 16a, but may be fixed to the side plates 24 and 16a as necessary. Each of the guide members 30 and 31 and the auxiliary guide member 32 is made of a circular roller, and has a groove 34 in the outer peripheral edge 33 as shown in FIG. A chamfered surface is formed so as to be a tapered surface 35 having a small diameter from the attachment base portion 31 to the outside. The edge portions of the string-like member 19 made of a wire or the like are curved and wound around the groove portions 34 of the guide members 30 and 31 and the auxiliary guide member 32 so as to protrude outward from the groove portion 34. One end portion side of the string-like member 19 is supported by a mounting plate 10 a that connects the side plate 24 of the lower divided body 11 and the support member 10, and the other end portion side of the string-like member 19 is a side plate 16 a of the upper divided body 16. Is supported by an open end portion 14a of the arm 14 extending outside through a tension coil spring 36 (FIGS. 1 and 2 are not shown). For this reason, the upper divided body 16 has a different height with respect to the lower divided body 11, and even if the position of the upper guide member 31 with respect to the lower guide member 30 changes, the tension is maintained on the string member 19 by the tension coil spring 36. As shown in FIGS. 1 and 4, the string-like member 19 stretched between the upper and lower guide members 30 and 31 with the upper divided body 16 having a different height from the lower divided body 11 has an inclination angle. An inclined portion 19a forming α is formed. Further, the lower end of the inclined portion 19a faces the oblique side 27 of the lower divided body 11 and becomes the upper end of the inclined portion 19a. The first oblique side 26 in the upper divided body 16 is formed at an inclination angle β (β> α) that is gentler than the inclination angle α of the inclined portion 19 a of the string-like member 19, and the lower end of the oblique side 26 is wound around the upper guide member 31. It faces the hung string-like member 19.

  A film guide 39 comprising a fixed winding member 37 and a movable winding member 38 is detachably disposed in the forming path 6 extending from the inlet side to the outlet side of the forming path 6. The fixed wrapping member 37 includes an upper wrapping member 37a and a lower wrapping member 37b that are provided along the inner wall of the forming path 6 and that extend horizontally from the exit of the forming path 6 to a predetermined rear position. The winding members 37a and 37b are connected by a connecting portion 37c at the starting end. The fixed winding member 37 is detachably disposed on the side plate 16a of the upper divided body 16 by a fastening means (not shown) via the attachment plate 40, and the upper edge of the upper winding member 37a is the upper guide member. The positioning is set so as to be slightly higher than the upper end of 31.

  The movable winding member 38 is a height position facing the upper winding member 37a and the lower winding member 37b in the fixed winding member 37, and one end of the movable winding member 38 is a support portion 38a that is outside the side plate 16a on the inlet side of the molding path 6. Are supported so as to be horizontally rotatable, extend into the forming path 6 from the rear of the inclined portion 19a, extend toward the exit of the forming path 6, and have the other end rotatable with one end of the link bar 38b. It is connected. The other end of the link bar 38b is supported so as to be movable back and forth with respect to a post 38c provided outside the side plate 16a on the outlet side of the molding path 6.

  With such a configuration, the other end of the link bar 38b connected to the movable winding member 38 moves forward and backward with respect to the post 38c, so that the movable winding member 38 rotates horizontally with the support portion 38a as a rotation fulcrum. The other end of the exit side end portion approaches and separates from the center of the forming path 6 and is set to a predetermined inclination from the entrance to the exit side of the forming path 6, so that the film 1 is formed into a cylindrical shape. The upper edge portion can be positioned and held and guided downstream.

  The belt-like film 1 drawn from the film supply source is conveyed from below to above the bag making means 3 through the guide roll 2, supported from below by the introduction guide 21, and provided at the entrance of the molding path 6. Guided by the guide piece 12 of the divided body 11, the inclined portion 19 a of the string-like member 19 stretched between the upper and lower divided bodies 16, 11, and the first oblique side 26 of the side plate 16 a of the upper divided body 16. Then, it is drawn into the molding path 6.

  As shown in FIG. 5, the strip-like film 1 folded back into the forming path 6 is formed such that, at the entrance of the forming path 6, the pull-in guide portion 1b where the base of the guide bar 21a in the guide piece 12 and the introduction guide 21 is located is the guide bar 21a. On both sides of the base portion, the corner portions are guided without being molded.

  As shown in FIG. 6 (a) or 6 (c), the belt-like film 1 is guided at the entrance of the molding path 6 by the bottom support plate 22, the side plate 24 and the bottom plate 25 in the guide piece 12 of the lower divided body 11, and the guide. An inclined portion 19a of a string-like member 19 stretched around each guide member 30, 31 provided on the side plate 24 of the piece 12 and the side plate 16a of the upper divided body 16, and the upper and lower divided bodies 16, 11 Are guided into the first hypotenuse 26 and the second hypotenuse 27, respectively, and drawn into the forming path 6.

  At this time, the inclination angle β of the first hypotenuse 26 formed by the side plate 16a of the upper divided body 16 that continues upward from the inclination portion 19a is set more gently than the inclination angle α of the inclination portion 19a. When the belt-like film 1 is drawn into the molding path 6, the belt-like film 1 is formed into a cylindrical shape with the upper guide member 31 provided at the transition portion from the inclined portion 19 a to the first oblique side 26 as a base point. The upper wall of the upper wall is regulated and guided into the forming path 6. Here, since the string-like member 19 wound around the periphery of the upper guide member 31 is curvedly wound around the groove portion 34 of the upper guide member 31, the inclined portion 19 a to the first oblique side 26. No corners are formed on the belt-like film 1 guided at the transition part, and the film is smoothly drawn without causing bag-making folds or breakage.

  Further, when the belt-like film 1 is guided while being in contact with the outer sides of the upper and lower guide members 30, 31, the outer edge portion of each guide member 30, 31 is a tapered surface having a small diameter outward from the mounting base. Therefore, the film 1 is not damaged or the conveyance of the film 1 is not hindered.

  Moreover, the both ends edge 1a of the strip | belt-shaped film 1 superposes | polymerizes upwards in the downstream on the both ends edge side of the strip | belt-shaped film 1 turned back to the shaping path 6 via the 1st oblique side 26, without acting too much tension The shift of the overlap of the edge portions and the fluctuation of the superposition height are prevented, the shift of the support position of the both edges 1a of the film 1 on the guide plate 41 disposed on the downstream side of the molding path 6, and the guide plate 41 The film 1 can be prevented from being poorly held by the feed roller 42 provided further downstream, and the film 1 can be molded satisfactorily.

  As shown in FIG. 5, the film 1 drawn into the forming path 6 is wound and guided by a film guide 39 including a fixed winding member 37 and a movable winding member 38 disposed in the forming path 6. It is possible to obtain a cylindrical film that has a rectangular tube shape in a state where the upper wall portion of 1 does not hang down excessively. For example, when stacked stacked articles or the like are fed into the film 1, there is no problem that the stacked articles are brought into contact with the upper wall of the film 1 that hangs down to disturb the stacked state.

  That is, the film 1 drawn into the forming path 6 is guided along the inner peripheral wall of the forming path 6, and both end edges 1 a of the film 1 are below the upper winding member 37 a of the fixed winding member 37. And the lower winding member 37b are wound around the movable winding member 38 between the upper winding member 37a and the lower winding member 37b, and both end edges 1a of the film 1 are downstream of the molding path 6. At the top to guide polymerization.

  Here, the pair of movable winding members 38 are inclined so as to be close to each other on the exit side of the conveyance path, and the upper wall of the film 1 formed into a cylindrical shape is formed from the entrance toward the exit side. A V-shaped space gradually approaching toward the center of 6 is formed (extruded into the molding path).

  Both end edges 1a of the film 1 pass between a pair of guide plates 41 provided on the downstream side from the molding path 6 and are sandwiched between feed rollers 42 provided on the downstream side thereof and overlapped with each other on the downstream side. While being conveyed, a vertical seal is applied to the overlapping edge by a vertical seal mechanism (not shown).

  In this manner, the upper wall portion of the film 1 can be positioned and supported by the movable winding member 38 and the fixed winding member 37 in the film guide 39 and can be guided in a state in which there is no downward slack.

  When various conditions such as the properties of the film 1 such as the material, thickness, or width of the film 1 and the position of the guide roll 2 disposed below the entrance are changed due to the change of the product type, If necessary, the mounting posture of the bracket 20 on which the guide bars 21a are disposed or the support member 10 of the bracket 20 is adjusted as described above. When it is necessary to change the left and right widths of the tubular film, the left and right guide bodies 5 are moved closer to and away from each other by a forward / reverse rotation operation of the handle 8a provided on the screw shaft 8 in the width adjusting means. When it is necessary to change the height of the cylindrical film, the movable body 15b is moved along the inclination angle of the slide guide 15a by the forward / reverse rotation operation of the handle 9a provided on the rotation shaft 9 in the height adjusting means. The height of the upper divided body 16 with respect to the lower divided body 11 is changed by moving up and down, and the position of the upper guide member 31 is adjusted. Further, if necessary, the link rod 38b connected to the movable winding member 38 in the film guide 39 is moved forward and backward with respect to the post 38c so that both end edges 1a of the film 1 are guided toward the overlapping portion. The guide angle formed in the V shape in the wall portion is adjusted.

  As shown in FIG. 1 or FIG. 4, the guide members 30, 31 provided on the upper divided body 16 and the lower divided body 11 are moved closer to and away from each other. When the stretched length of the string-like member 19 changes, the inclined portion 19a becomes a continuous straight line without generating a gap between the lower divided body 11 and the upper divided body 16. Therefore, the belt-like film 1 drawn into the molding path 6 is favorably guided by the inclined portion 19a. Further, when the height is adjusted, the inclination angle of the slide guide 15a is set to the same angle as the inclination angle α of the inclined portion 19a of the string-like member 19 at the lower moving position shown in FIG. 4, the inclination angle α of the inclined portion 19 a of the string-like member 19 is substantially the same and does not change during the movement to the height position between the upper movement position shown in FIG. 4. Further, the inclination angle β of the oblique side 26 of the upper divided body 16 extending upward from the upper guide member 31 is constant, and is always a gentler angle than the inclination angle α of the inclined portion 19 a of the string-like member 19. Thus, even when the width adjusting means or the height adjusting means is adjusted, the angles of the inclined portion 19a and the first hypotenuse 26 that are inclined in the vertical direction of the film 1 do not change, and the inside of the forming path 6 is not changed. The film 1 can be formed along the peripheral wall, and the film 1 can be always formed smoothly and satisfactorily without excessive tension acting on the film 1.

  Since the upper divided body 16 is moved up and down by a link mechanism including the lever 17 and the interlocking link 18, the upper divided body 16 can be easily moved and positioned with respect to the lower divided body 11.

The present invention can be modified as appropriate in addition to the above-described embodiment without departing from the spirit of the present invention. For example, the following configuration can be employed.
In the present embodiment, the slanted portion 19a is formed by stretching the string-like member 19 between the upper and lower guide members 30, 31 regardless of the position of the upper divided body 16, but the lower guide member 30 is omitted. Then, the lower end of the string-like member 19 may be connected to the side plate 24 of the guide piece 12 of the lower divided body 11 to form the inclined portion 19a. Further, by connecting the lower end of the string-like member 19 to the vicinity of the lower edge of the side plate 24, it is not necessary to provide the second oblique side 27 having an angle that matches the inclination angle of the inclined portion 19a.

  In the present embodiment, the upper divided body 16 is moved up and down by the link mechanism along the inclination angle of the slide guide 15a. However, the screw mechanism or gear provided between the upper and lower divided bodies 16 and 11 is used. You may make it move by transmission mechanisms, such as a mechanism.

  The width adjusting means and the height adjusting means are adjusted by operations using the handles 8a and 9a, respectively, but they may be automatically adjusted by being connected to a driving means such as a motor.

  In the present embodiment, tension is applied to the string-like member 19 by the tension coil spring 36 coupled to the upper divided body 16, but the tension coil spring 36 may be coupled to the lower divided body 11. An elastic body other than the tension coil spring 36 may be used.

  The introduction guide 21 is configured to include a pair of guide bars 21a. However, the introduction guide 21 is a narrow plate-like member, or a thin plate-like member that can support the entire lower surface side of the film 1 fed from below. You may make it the structure of doing.

  -In this embodiment, the film guide 39 provided in the shaping path 6 should just be employ | adopted as needed.

  DESCRIPTION OF SYMBOLS 1 ... Film, 1a ... End edge, 3 ... Bag making means, 5 ... Guide body, 6 ... Molding path, 7 ... Fixing base, 8 ... Screw shaft, 9 ... Rotating shaft, 11 ... Lower divided body, 15a ... Slide Guide, 16 ... upper divided body, 16a ... side plate, 19 ... string-like member, 19a ... inclined portion, 21 ... introduction guide, 24 ... side plate, 25 ... bottom plate, 27 ... hypotenuse, 28 ... guide shaft, 30, 31 ... guide 33, outer peripheral edge, 34 ... groove, 37a ... upper winding member, 37b ... lower winding member, 38 ... movable winding member, 39 ... film guide.

Claims (6)

A bag making apparatus in a horizontal bag making and filling machine that forms a cylindrical shape by polymerizing both end edges of a belt-like film conveyed from below to above,
Forming a molding path for forming the film, and a guide body that approaches and separates left and right by the width adjusting means;
An upper divided body and a lower divided body configured so that each guide body can be moved up and down, and
A height adjusting means for moving the upper divided body up and down at a predetermined inclination angle with respect to the lower divided body;
A side plate of the lower divided body constituting the inlet of the molding path and a bottom plate extending laterally from the side plate;
Between the respective side plates of the upper divided body and the lower divided body, an inclined portion that is stretched with an ascending inclination from the entrance to the exit side of the forming path and that can guide the belt-like film drawn into the forming path is formed. A string member;
A guide member disposed on the upper divided body and configured to bend and wrap the string-like member; and a hypotenuse extending at a gentler inclination angle than the inclination angle above the hook portion of the guide member above the string-like member. Have each
When the upper divided body is moved up and down by the height adjusting means, the stretched length of the string-like member is changed to the inclined portion at substantially the same angle as the inclined angle of the inclined portion, When drawing both end edges into the forming path, the transition part from the guide member to the oblique side can be used as a base point for regulating the height of the upper wall part of the film to be formed into a cylindrical shape. Bag making device in bag filling machine.   2. The horizontal bag making and filling machine according to claim 1, wherein the guide member includes a groove portion at an outer peripheral edge portion, and is wound so that an edge portion of the string-like member protrudes and curves from the groove portion. Bag making equipment.   The height adjusting means includes a link mechanism connected to the upper divided body, a slide guide that moves up and down along an inclination angle of the inclined portion, and a rotation shaft of the link mechanism. The bag making apparatus in the horizontal bag making and filling machine according to claim 2.   A film guide for winding and guiding both end edges of the belt-like film is disposed in the forming path, and the film guide includes an upper winding member and a lower winding member extending from the entrance to the exit side of the forming path, and these A movable wrapping that faces between the upper and lower wrapping members and is arranged at a predetermined inclination from the entrance to the exit side of the molding path, and is configured such that the end on the exit side can be approached and separated from the center of the molding path. The horizontal bag making according to any one of claims 1 to 3, wherein an upper edge portion of a film formed into a cylindrical shape by the movable winding member is positioned and held. Bag making equipment in filling machines.   The width adjusting means is rotatably disposed on a fixed base disposed below the bottom plate, and is provided with a screw shaft for approaching and separating each guide body, and is inserted through the fixed base and disposed in parallel with the screw shaft. The bag making apparatus in the horizontal bag making and filling machine according to any one of claims 1 to 4, further comprising a guide shaft for guiding the movement of each guide body.   The horizontal product according to any one of claims 1 to 5, further comprising an introduction guide capable of changing a guide state from below of the belt-like film conveyed from below to the entrance of the forming path. Bag making device in bag filling machine.

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