JP2854251B2 - Film bag making equipment in horizontal bag making and filling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt-like film drawn from a film roll, formed into a tube, and supplies articles into the tube-shaped film. A bag making apparatus for forming a film in a horizontal bag making and filling machine which obtains a pro-packed body by performing a horizontal seal cutting at a position, and an adjusting mechanism which can be adjusted according to the size of a packaged article. The present invention relates to a film bag-making apparatus provided with:

[0002]

2. Description of the Related Art Conventionally, at the time of initial setting of a film in a horizontal bag making and filling machine, a film feed roller and a center seal provided on the downstream side of the bag making device while guiding the cylindrical film to the bag making device. While holding the film in the width direction with rollers, etc., the film transport mechanism of the packaging machine is operated at a low speed, the film is formed into a target size while the worker holds the film manually. The work has been done as follows. Conventionally, as a film bag making apparatus capable of responding to changes in the height and width of an article when the size of the article is changed when multi-product production is performed, for example, the one disclosed in Japanese Utility Model Publication No. 62-43072. There is.

In Japanese Utility Model Publication No. Sho 62-43072, in order to cope with a change in the size of an article, various adjustment mechanisms of a bag making apparatus are provided at an upper portion, so that a film transfer mechanism of a packaging machine is provided. When the operation is performed at a low speed and the worker holds the film by hand and sets the film to be formed into a cylindrical shape having a desired size, the worker puts his hand in the lower part of the bag making apparatus. In addition to holding the film, it is necessary to adjust each adjusting mechanism to perform setting work so that the film is formed into a cylindrical shape having a desired size. In order to improve this problem, for example, assuming that the upper side is empty
For example, Japanese Unexamined Utility Model Application Publication No. 64-32305 is disclosed.

In the bag making apparatus disclosed in Japanese Utility Model Laid-Open Publication No. 64-32305, adjustment of the width direction of a cylindrical film in accordance with the size of an article is performed by disposing the film at a predetermined angle on a film supply side and expanding the sheet on a base frame side. A frame attached to a pair of guide rods provided via a slidably provided block moves outwardly through the guide rods while moving to the film supply side, so that the left and right frame bodies can be mutually moved. Are widened to adjust the width of the cylindrical film.

[0005]

However, in the latter, although the workability in the initial film setting in the former is improved, the guide rod is fixed when compared with the former in the width direction adjusting means. Therefore, there is a problem that the movable range in the front-rear direction with respect to the adjustment in the width direction is large, and the installation space including the movable range of the bag making apparatus is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has a simple structure to improve workability at the time of initial setting of a film and to adjust a film guide member at the time of adjusting the bag making width of the film. An object of the present invention is to provide a film bag making apparatus having a small front and rear movable range.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned technical problems, the present invention relates to a film bag making apparatus which is disposed along a film feeding process for forming a band-like film into a cylindrical shape. The apparatus forms a cylindrical film forming path which is opened upward by a side bag forming guide opposed to the left and right lower guide guides with respect to the film feeding center line, and the lower guide guide is a first bag forming guide. And a second bag-making guide plate disposed on the upper surface of the first bag-making guide plate, and the left and right first bag-making guide plates are directed toward the film supply side with respect to the center line of the packaging machine. With an inclined edge that expands at an angle of
An elongated hole is formed parallel to the inclined edge, and the second bag-making guide plate is connected to the elongated hole of the first bag-making guide plate via a guide pin and has an inner edge aligned with the inclined edge. It is provided so as to be extendable and contractible through a long hole portion, and is disposed below the lower guide guide portion at a predetermined angle toward the film supply side with respect to the center line of the packaging machine. A film bag width adjustment mechanism is provided which includes a left and right slide frame portion having a screw shaft and an adjustment operation frame portion for interlocking the left and right screw shafts in series. The side bag making guide is attached to the left and right slide bodies so as to be able to move in parallel to the center line of the packaging machine, and the lower edge of the left and right side bag making guides at the film supply side end side. The front end of the second bag-making guide plate is pinned on the first The guide plate is rotatably pinned to the base side of the slide frame, and a film bag height guide is tiltably provided on the film supply side of the left and right side bag guides. A film guide boss for guiding a sealing edge of a film overlapping edge is provided at a pin attachment portion of the left and right first bag-making guide plates of the lower guide guide portion; The lower part of the film bag height guide provided on the film supply side of the part bag guide is pinned, and the upper side is connected to a positioning lock mechanism provided on the side bag guide. The eccentric handle is provided so as to be detachably engageable with a lock concave portion formed at a predetermined angle, and the film bag height guide is provided so as to be tiltable. Dobosu is film bag apparatus in horizontal bag filling and packaging machine configured in cylindrical member having a tapered surface which gradually decreases in diameter downward.

[0008]

With the above construction, the setting operation can be performed from above at the time of initial film setting, and the movement of each bag-making guide member can be set to be small when adjusting the bag-making width. Height adjustment can be performed reliably.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
FIG. 3 is a plan view, and FIG. 3 is a side view of the film supply side. As shown in FIGS. 1, 2, and 6, the film bag making apparatus 5 is a substrate mounted on a machine frame 1 of a packaging machine. 2 is mounted between the upper ends of the left and right support legs 3 erected at predetermined intervals about the center line C of the film feeding. This bag making apparatus 5 is a film bag width adjusting mechanism. 6
And left and right lower guide guides 35 linked to the bag making width adjusting mechanism 6 and left and right film side bag making guides 51.

The bag making width adjusting mechanism 6 comprises an adjusting operation frame 7 and a pair of right and left slide frames 15 attached to the adjusting operation frame 7 in an expanding manner. As shown in FIG. 6, a substantially rectangular mounting plate 8 having a predetermined width, which is mounted between the support legs 3, and a supporting plate 9 having a predetermined height corresponding to both ends of the mounting plate 8 can be attached and detached. And a rotation shaft 10 is rotatably supported between the upper ends of the support plates 9. Bevel gears 11a and 11b are screwed to the rotating shaft 10 at predetermined intervals with respect to the center line C of the film feeding, and are fixed by a retaining ring 12a to prevent the bevel gears 11a and 11b from coming off. The plate 9 is prevented from falling off via a retaining ring 12b, and an operation handle 13 is attached to one end of the rotating shaft 10. The left and right slide frames 15 are attached to the adjustment operation frame 7 thus formed.

The right and left slide frames 15 are formed in a symmetrical shape, and as shown in FIG.
Is formed in a substantially rectangular block body having a predetermined thickness.
A window 17 having a predetermined size and a substantially rectangular shape is formed in the center of the window 6. One end of a screw shaft 18 having a predetermined length is rotatably supported on the window 17 side substantially at the center of one end surface of the mounting block 16. A bevel gear 19 which is engaged with and beveled with the bevel gears 11a and 11b of the operation frame 7 is attached. In addition, guide rods 20a, 20b are provided above and below the screw shaft 18 in parallel.
A stopper piece 21 is detachably attached to the ends of the guide rods 20a and 20b.
An end of the screw shaft 18 is rotatably supported on the stopper piece 21. The screw shaft 18 and the upper and lower guide rods 20 are supported.
A slide body 22 is movably mounted between a and 20b.

The slide body 22 is formed in a substantially rectangular block shape having a predetermined thickness, and a substantially rectangular window portion 23 into which a female screw body 24 screwed with the screw shaft 18 can be fitted is provided at the center. A guide hole 25a through which the screw shaft 18 is inserted is provided on both sides of the window 23, and a guide rod 2 is provided on the upper side.
A guide hole 25b through which the guide rod 20b is inserted is formed, and a substantially semicircular slide groove 25c which is slid by the lower guide rod 20b is formed on the lower end surface side. Further, the slide body 22 is formed with a protrusion 26 protruding upward.
As shown in FIG. 10, a mounting surface 27 for mounting the connecting member 76 of the film side guide 51 at a predetermined angle α with respect to the screw shaft 18 and the axis of the upper and lower guide rods 20a and 20b is formed in the protrusion 26 as shown in FIG. Notch is formed. Further, a film guide boss 29 attached to the left and right lower guide portions 35 is rotatably fixed at a predetermined position near the end of the upper end surface of the attachment block 16 via a screw pin 28 attached to the center thereof. The film guide boss 29
Is formed of a columnar member having a predetermined height and having a tapered surface 30 whose diameter gradually decreases downward.

The left and right slide frames 15 thus formed are mounted on the mounting plate 8 of the adjusting operation frame 7 at a predetermined angle α with respect to the center line C of the film feeding via the mounting block 16.
The bevel gears 11a and 11b mounted on the coaxial 10 with the rotating shaft 10 inserted through the windows 17 of the left and right mounting blocks 16 are mounted in the windows 17 of the left and right mounting blocks 16. When the operation handle 13 is turned, the slide body 22 is moved along the guide rods 20a and 20b via the screw shaft 18 while being meshed and connected with the bevel gear 19 screwed and fixed to the screw shaft 18. The mounting surface 27 formed on the protrusion 26 of the slide body 22 is moved in parallel with the center line C. The film guide boss 29 mounted on the mounting block 29 of the slide frame 15 thus mounted is disposed at a predetermined distance from the center line C of the film feeding, and the upper end surface of the film guide boss 29. Is the article transport surface 3 on the downstream side
The lower film guide bosses 29 are attached to the left and right film guide bosses 29, respectively.

The lower guide portion 35 is formed symmetrically as shown in FIGS. 2 and 5, and is constituted by a first bag-making guide plate 36 and a second bag-making guide plate 41 in the form of a thin plate. ing. In the first bag-making guide plate 36, a short edge 37 having a predetermined length and an outer long edge 38 which are opposed to each other are formed at a predetermined width interval, and a predetermined position of the long edge 38 is provided at a predetermined position. A relief recess 38a of the connecting member 76 described later is formed. An inclined edge 39 is formed at a predetermined angle at an end of the short edge 37 and an end of the long edge 38. A long hole 4 having a predetermined length and guiding the second bag-making guide plate 41 in parallel with a predetermined interval along the inclined edge 39.
0 is penetrated. The second bag-making guide plate 41 is formed by an inner edge 42, a base edge 43, and an outer edge 44.
The inner edge 4 is formed in a substantially right triangle shape having
2 and the outer edge 44, the inner edge 42
A guide piece 45 of a predetermined length having a guide edge 46 substantially at a right angle to is formed in a hook shape.

The first bag-making guide plate 3 thus formed
6, the second bag-making guide plate 41 is attached to the long hole portion 40 at a predetermined interval as shown in the figure, the guide pin 47 is inserted, and the nut 48 is screwed on the back side to guide the same. The second movement of the pin 47 along the long hole 40 causes the second
The inner edge 42 of the bag-making guide plate 41 is connected to the first bag-making guide plate 36.
Are provided so as to be aligned with the inclined edge 39. The head of the guide pin 47 is formed in a dish shape, and the top surface is mounted so as to be flush with the guide plate 41. In addition, the short edge 3 of the first bag-making guide plate 36
A film guide boss 29 is fastened to the back side of the corner portion between 7 and the inclined edge 39 by a flathead screw 49, and the top surface of the head of the flathead screw 49 is attached to the same surface of the guide plate 36. .

The left and right film side bag-making guides 51
Are formed symmetrically.
1, a bag-making height guide 71 is provided at the front portion, and a positioning lock mechanism 61 for positioning the bag-making height guide 71 at a predetermined angle is provided on the side surface of the side bag-making guide 51. Have been. The side bag-making guide 51 is made of a plate material having a predetermined thickness. As shown in FIG. 7, a guide plate 52 having a predetermined rising width and a wide and inclined upper end are provided on one end side of the guide plate 52. The support plate 53 is formed at a predetermined position on the upper side of the support plate 53. The mounting hole 5 of the positioning lock mechanism 61 for setting the film bag height guide 71 at a predetermined angle.
4 are provided, and a plurality of lock recesses 55 are formed at predetermined angular intervals on a predetermined radius centered on the mounting hole 54. At a predetermined position below a vertical line passing through the center of the mounting hole 54, a support hole 56 is formed to be a center of rotation of the bag making height guide 71. A hole 57 having a predetermined diameter is formed at a predetermined position close to the lower edge 51a near the lower portion at a predetermined distance h from a vertical line passing through the mounting hole 54, and the hole 57 has Lower edge 51a
A pin hole 58 is formed to penetrate to the side and pivotally connect the lower guide portion 35. At predetermined positions of the guide plate 52, mounting holes 59 for connecting to the slide body 22 of the slide frame portion 15 via the connecting members 76 are provided at predetermined intervals.

A positioning lock mechanism 61 is mounted in the mounting holes 54 of the left and right side bag-making guides 51 formed as described above. The positioning lock mechanism 61 includes an eccentric handle 62 and a connecting rod 69. The eccentric handle 62 has a disc-shaped grip 63 having a predetermined diameter as shown in FIGS. 8 (a) and 8 (b). An eccentric boss 64 having a predetermined diameter including the center p of the grip portion 63 is formed on one surface of the grip portion 63 with a position eccentric by a predetermined dimension e from the center p of the grip portion 63 as a center p1. A shaft hole 65 through which the support shaft 70 is inserted extends through the center p of the grip portion 63 of the eccentric handle 62. The center hole p on the line connecting the center p and the center p1 of the eccentric boss 64 is locked by the mounting hole 54 described above. Recess 55
A screw hole 66 and a through hole 67
Are formed concentrically, and a lock pin 68 on which a ball that engages with and engages with the lock recess 55 is detachably attached to the screw hole 66. A base of a connecting rod 69 having a predetermined length is rotatably fitted to the eccentric boss 64, and is attached to the mounting hole 54 via the support shaft 70 in this state. The end is provided so as to be pivotally connected to the film bag height guide 71.
The eccentric handle 62 may be provided with a scale or the like on the outer peripheral portion thereof so that the height position can be checked.

The film bag height guide 71 is attached to the inner surface of the support plate 53 of the left and right side bag guides 51 at a predetermined angle with respect to the support plate 72 attached to the inner surface of the support plate 53. Substantially triangular wing plate 7 bent in a receding shape to the side
The bent ridge 74 between the support plate 72 and the wing plate 73 forms the folded edge of the belt-shaped film F. A predetermined position on the lower side of the support plate 72 of the height guide 71 thus formed is pivotally connected to a support hole 56 formed through the support plate 53 of the side bag making guide 51 via a connecting pin 75a. The end of the connecting rod 69 is pivotally connected to a predetermined position on the upper side of the support plate 72 via a connecting pin 75b, and is integrally assembled with the side bag-making guide 51. I have.

The left and right side bag-making guides 51 having the height guides 71 attached thereto are slidably mounted on the left and right slide frames 15 via the connecting members 76.
2 is attached to the second mounting surface 27. This connecting member 76
Is formed in a substantially square shape, the mounting portion 77a for the slide body 22 is formed in a thin shape, and the mounting portion 77b of the side bag-making guide 51 is formed in a thick shape. The attached left and right side bag making guides 51 are attached in parallel to the center line C of the film feeding. The film guide bosses 29 attached to the first bag-making guide plates 36 of the left and right lower guide guides 35 are attached to the left and right side bag-making guides 51 attached as described above via the screw pins 28 at the center thereof. The left and right mounting blocks 16 are rotatably mounted at predetermined positions, and a predetermined position on the distal end side of the second bag-making guide plate 41 is provided at a lower edge of a hole 57 penetrating through the side bag-making guide 51. A pin hole 58 formed to fit through the 51a side
Forming paths which are connected to each other via pins 78 and are opened upward are formed.

In this mounted state, as shown in FIG. 2, the inclined edges 3 of the left and right first bag-making guide plates 36 of the lower guide portion 35.
9 and the second bag-making guide plate 41 are held in an expanded state at a variable angle .beta. With respect to the center line C of the film feeding, and a substantially V-shaped insertion opening A into which both end edges f1 of the band-shaped film F are inserted is formed. The short edges 37 of the left and right first bag-making guide plates 36 are opposed to each other in a state where they are opened to the downstream side so as to be continuous with the insertion opening A, and as shown in FIG. A gap t is formed through the sealing edge with the edge f1 overlapped, and the lower surface is a pair for feeding the film downstream by sandwiching the sealing edge and being driven to rotate in opposite directions to each other. A film feeder 80 having a feed roller 81 is provided. The bag making height guide 71 attached to the front of the side bag making guide 51 operates the eccentric handle 62 of the left and right positioning lock mechanism 61 to operate the side bag making guide 51.
The bent ridge 74 can be adjusted to a predetermined angle γ, that is, a bag making height corresponding to the packaged article, by fitting and adjusting the lock pin 68 into the corresponding lock recessed portion 55 formed in the above. Then, the operation handle 1 of the adjustment operation frame portion 7
By turning 3, the angle β of the insertion opening A with respect to the center line C is contracted, and the interval H between the left and right side bag-making guides 51 is contracted.

In the bag making apparatus 5 constructed as described above, the bag making height guide 71 and the angle β of the insertion opening A and the left and right side bag making in accordance with the width of the band-shaped film with respect to the packaged article. FIG. 10 shows the case in which the width adjustment position is adjusted to the minimum position H1 on the upper side of the center line C of the film feeding, and the lower side is adjusted to the substantially middle position. In this state, the slide member 22 of the slide frame 15 is moved to the mounting block 16 via the screw shaft 18 and is connected to the slide member 22 when the position is set to the substantially minimum position H1. The side bag-making guide 51 attached via the member 76 is moved in parallel with respect to the center line C of the film feeding, and is positioned at a substantially minimum width H1. In this case, the connecting member 76 is the first
Escape recess 38 formed in long edge 38 of bag-making guide plate 36
a.

To adjust the minimum width H1 to, for example, the width H2 according to the packaged article, by operating the operation handle 13 of the adjustment operation frame 7, the screw shaft 1 of the left and right slide frame 15 can be adjusted.
8 is linked via bevel gears 11a, 11b, 19,
The left and right slide bodies 22 are synchronously moved along the screw shaft 18 in the angle α direction. The side bag-making guide 5 attached via a connecting member 76 to the attachment surface 27 formed on the slide body 22 in parallel with the center line C by the movement of the slide body 22.
Similarly, the second bag-making guide plate 1 of the lower guide guide portion 35, which is also translated in parallel with the center line C in the direction of increasing the width H1 and is pivotally connected to the same side bag-making guide 51 via a pin 78. 4
The first bag-making guide plate 36 is extended along the long hole 40 of the first bag-making guide plate 36, and the first bag-making guide plate 36 is mounted on the mounting block 16 in which the film guide boss 29 mounted on the base side is fitted. The slanted edge 39 of the first bag-making guide plate 36 and the inner edge 42 of the second bag-making guide plate 41 are extended in alignment with the screw pin 28 as the center, and the left and right side portions are formed. At the position of the width interval H2 targeted by the bag guide 51, the inclined edge 39 of the first bag-making guide plate 36 and the inner edge 42 of the second bag-making guide plate 41 of the left and right lower guide portions are formed at a predetermined folding angle β2. Is set. When it is necessary to change the bag making height by changing the product height of the packaged article, the eccentric handles 62 of the left and right positioning lock mechanisms 61 are operated to operate the folded ridge line portion 74 of the bag making height guide 71. Angle γ
The lock is set in a lock recess 55 which is recessed at a predetermined angular interval in the side bag-making guide 51 corresponding to the target height.

As described above, the left and right bag making height guides 7
1 was adjusted to the height angle γ, and the left and right side guides 51 were adjusted to the width interval H2. Then, while the film transport mechanism of the packaging machine was operated at a low speed, the strip film was moved by the left and right blades 73. The film center is formed into a tubular shape while being guided along the both edges f1 while being guided between the left and right side bag making guides 51, and the cylindrical film is moved along the left and right side bag making guides 51. And, while guiding both edges of the film downward along the left and right inner edges 42 and the inclined edge 39 of the insertion opening A, the film is guided between the film guide bosses 29 in the gap t between the short edges 37, and the seal margin f1 is provided. To form And
The seal film portion f1 is clamped between the pair of feed rollers 81 of the downstream film feed device 80 and by a seal roller (not shown) of the seal device disposed further downstream to set the band-shaped film. When the packing machine is completed, the seal margin f1 is transferred to the downstream side by the feed roller 81 of the film feeder 80, is welded by the seal roller of the sealer, and is fed as a center-sealed tubular film. Go.

As described above, in the bag making apparatus 5 of this embodiment, the film bag width adjusting device 6 for adjusting the bag making width of the cylindrical film is provided with each bag making guide, that is, the lower guide portion 35 and the film side bag making. Since it was arranged under the guide 51,
In the initial film setting operation by the operator, since the upper side of the bag making apparatus 5 is in the open state, the film F can be held from the upper side, and the lower side of the left and right first bag making guide plates 36. Film guide boss 2 corresponding to
Since the film 9 is attached, the setting of the seal margin f1 at the time of setting the film becomes easy, and the setting workability can be improved. Further, a tapered surface 30 which becomes a subtotal is formed in the pair of film guide bosses 29 so that both edge portions of the film are guided along the tapered surface 30 when the belt-like film is formed into a cylindrical film. Therefore, the seal portion f1 of the cylindrical film has an aperture effect.

In addition, the bag making width of the cylindrical film can be adjusted by rotating the bevel gear 11a,
11b, the screw shafts 18 of the right and left slide frames 15 are meshed and connected to the two bevel gears 11a and 11b via bevel gears 19, and the slide body 22 screwed to the screw shaft 18 is provided.
Are configured to operate in synchronism, and the left and right side bag-making guides 51 are connected to the slide body 22 via the connecting member 76, so that the bag-making width adjustment operation can be simplified.

The bag making height of the cylindrical film can be easily adjusted only by operating the left and right bag making height guides 71 with the eccentric handle 62. Since the lock pin 68 is removably fitted and engaged with the lock recessed portion 55 recessed at every predetermined angle range, the angle adjustment (height adjustment) work is short even with the left and right independent adjustment configuration. It can be done reliably in time.

In particular, in adjusting the bag making width, the left and right side bag making guides 51 are attached at a predetermined angle α and feed the film to the slide body 22 screwed to the screw shaft 18 of the slide frame 15. Since it is mounted so as to be able to move parallel to the center line C and is adjusted and moved, its moving range in the front-rear direction is small, and it is opened and contracted in the left-right direction. .

The left and right lower guide portions 35 have the second
By providing the guide piece 45 on the tip side of the bag-making guide plate 41, in the process of sequentially forming the band-like film F into a cylindrical shape via the film-making height guide 71, the width direction of the band-like film F is reduced. Both edges f are guided without slack, so that bag making failure due to meandering of the film or the like can be prevented.

[0029]

According to the present invention, since the adjusting mechanism for adjusting the bag making width of the cylindrical film is disposed below each bag making guide, the initial film setting by the operator is performed. In the work, the film can be held from the upper side of the bag making apparatus, and the setting workability can be improved. In particular, when adjusting the width of the bag making width, the left and right side bag making guides are attached at a predetermined angle and can be moved parallel to the center line of the film feeding on a slide body screwed to the screw shaft of the slide frame portion. Since it is mounted and adjusted and moved, its moving range in the front-back direction is small and it is opened and closed in the left-right direction, so that the installation space including the moving range of the bag making apparatus can be reduced. In addition, the adjustment of the bag making height of the cylindrical film can be easily performed only by operating the left and right bag making height guides with the eccentric handle, and the eccentric handle is provided at every predetermined angle range. Since the lock pin is removably fitted into and engaged with the recessed lock concave portion, the angle adjustment (height adjustment) operation can be reliably performed in a short time even with the right and left independent adjustment configuration. .
In addition, since the film guide bosses forming the pair have a tapered surface having a small diameter toward the lower side, the film guide boss has a narrowing effect of a seal margin for converting the belt-like film into a cylindrical film.

[Brief description of the drawings]

FIG. 1 is a front view of a film bag making apparatus.

FIG. 2 is a plan view of the film bag making apparatus.

FIG. 3 is a side view of a band-shaped film supply side of the film bag making apparatus.

FIG. 4 is a front view of a slide frame portion of the film bag width adjusting device.

FIG. 5 is a plan view of a lower guide unit.

FIG. 6 is a front view of an adjustment operation frame portion of the film bag width adjusting device supported upright on the machine frame of the packaging machine.

FIG. 7 is a front view of a side bag-making guide.

FIG. 8 (a) is a rear view of the eccentric handle. (b) It is sectional drawing of an eccentric handle.

FIG. 9 is a view showing a state in which a seal margin is inserted into a film guide boss in order to form a cylindrical film.

FIG. 10 is an operation explanatory view of the film bag making apparatus.

[Explanation of symbols]

 Reference Signs List 5 Film bag making device 6 Film bag width adjusting device 7 Adjustment operation frame 10 Rotating shaft 11a, 11b, 19 Bevel gear 18 Screw shaft 22 Slide body 28 Shaft pin 29 Film guide boss 35 Lower guide guide 36 First product Bag guide plate 39 Inclined edge 40 Long hole portion 41 Second bag-making guide plate 42 Inner edge 47 Guide pin 51 Side bag-making guide 55 Lock concave portion 61 Positioning lock mechanism 62 Eccentric handle 68 Connecting rod 71 Film bag height guide 75a, 75b connecting pin 76 connecting member 78 pin

Claims (3)

(57) [Claims] 1. A film bag making apparatus arranged along a film feeding process for forming a band-shaped film into a cylindrical shape, the bag making apparatus comprising a left and right lower guide guide portion with respect to a film feeding center line. A cylindrical film forming path that is opened upward by the opposed side bag-making guide is formed, and the lower guide portion is disposed on the first bag-making guide plate and on the upper surface of the first bag-making guide plate. The left and right first bag-making guide plates have an inclined edge which expands at a predetermined angle toward the film supply side with respect to the center line of the packaging machine. The second bag-making guide plate is connected to the long hole portion of the first bag-making guide plate through a guide pin and has an inner edge aligned with the inclined edge. It is provided so as to be extendable and contractable through the lower portion, and a package is provided below the lower guide portion. A right and left slide frame portion having a screw shaft arranged in a spread shape at a predetermined angle toward the film supply side with respect to the center line of the machine, and an adjustment operation frame portion which interlocks the left and right screw shafts in series. A film bag width adjusting mechanism is provided, and a slide body is provided on the screw shaft so as to be able to move forward and backward, and the left and right slide bodies are moved in parallel with the side bag making guide with respect to the center line of the packaging machine. The left and right side bag-making guides are attached so as to be capable of being mounted, and the leading end side of the second bag-making guide plate is pinned to an end of the film supply side at the lower edge of the left and right side bag-making guides. A pin is rotatably attached to the base side of the slide frame portion, and a film bag height guide is provided on the film supply side of the left and right side bag guides so as to be tiltable. To the pin attachment part of the first bag-making guide plate on the left and right of the guide guide Film bag in which the apparatus and the horizontal-type bag filling and packaging machine provided with a film guide boss for guiding the sealing edge of the film polymerization edges. 2. A positioning lock mechanism wherein a lower portion of a film bag height guide provided on the film supply side of the left and right side bag guides is pinned, and an upper portion is provided on the side bag guide. The eccentric handle of the positioning lock mechanism is provided so as to be detachably engageable with a lock recessed at a predetermined angle, and the film bag height guide is provided so as to be tiltable. Film making equipment in a horizontal bag making and filling machine. 3. A film bag making apparatus in a horizontal bag making and filling machine according to claim 1, wherein said film guide boss is a cylindrical member having a tapered surface whose diameter gradually decreases downward.