JPH063765Y2 - Feeding film folding device in automatic filling machine - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The invention is to quantitatively fill an object to be packaged in a packaging bag formed by sealing a film fed from a winding roll in a two-way seal or a three-way seal. The present invention relates to a folding device that is applied to an automatic filling machine that seals the opening of a packaging bag to form a sealed packaging bag that is sealed on three sides or four sides, and folds the fed film into two in the width direction. In particular, it facilitates the setup when changing the width of the film and the like, and makes it extremely simple and quick to insert the film into the folding device.

(Prior Art) As a conventionally known automatic filling machine applied to automatic filling of a liquid or a viscous substance, there is one illustrated in FIG. 2 (a).

This is because the film material, for example, the laminated plastic film 2 delivered from the take-up roll 1 is sequentially passed through the guide rolls 3 and 4, and then folded in two in the width direction by the folding device 5, and then the two. The laminated plastic film 2 in the folded state is sequentially passed through a seal roll 6 and a horizontal seal roll 7 which also function as a pull-out roll of the laminated plastic film 2. In the vertical seal roll 6, two rolls form a pair. By the flange-shaped heat seal blade 6b provided on each of the rolls 6a,
Heat treatment is applied to the free end of the laminated plastic film 2 in the vertical direction as shown by the shaded area in the figure, and in the horizontal seal roll 7, a pair of two rolls 7a are made to extend in the length direction thereof. The heat-sealing blade 7b is formed by forming a predetermined interval in the circumferential direction of the roll 7a, and a predetermined interval is set in the length direction of the laminated plastic film 2 as shown by the hatched portion in the drawing. Apply the seal roll.

Here, for example, the liquid filling of the laminated plastic film 2 which is heat-sealed in the vertical direction and the horizontal direction in this way is performed by the nozzle 8 as a filling means.
This is done by supplying a liquid to the inside of the plastic film 2 after the vertical sealing is completed, and the plastic film 4 after the filling of the liquid and the vertical and horizontal heat sealing as described above is a three-way seal in the figure. A cutter bag 9 which is a packaging bag and is arranged below the horizontal seal roll 7 is cut, for example, one bag at a time from the intermediate portion of the horizontal seal portion 10.

By the way, the folding device 5 of such a conventional automatic filling machine is used.
As is apparent from the enlarged plan view of FIG. 2 (b), the bracket 11 is fixed or fixed with the inner surface guide means 12 protruding substantially in a U shape to one side thereof. The outer surface guide means 13 that surrounds the guide means 12 in a U shape is also configured to be fixed or fixed to the bracket 11 thereof. In such a folding device 5, between the inner and outer guide means 12 and 13. The inner surface of the laminated plastic film 2 inserted through the passage 14 to be formed is guided by the inner surface guide means 12, and the outer surface thereof is guided by the outer surface guide means 13, and the respective side edges of the laminated plastic film 2 are guided. By guiding with the bracket 11, the laminated plastic film 2 can be folded in two from the center in the width direction as desired.

Here, it is preferable that the inner surface guiding means 12 is provided with a tail portion 12a that projects downward from the inner surface guiding means 12, and the tail portion 12a is inscribed in the bent portion of the laminated plastic film 2 so that the plastic film 2 Prevent runout.

(Problems to be solved by the invention) However, in the conventional folding device 5, the inner and outer guide means 12 and 13 are fixed or fixed together to the bracket 11, and are formed between them. In other words, since the dimensions of the passage 14 are constant,
Since the folding device 15 is dedicated to the laminated plastic film 2 having a specific width, when it is necessary to apply laminated plastic films having different sizes to the automatic filling machine, the existing folding device 5 can be used. Had to be exchanged for a plastic film that is newly applied, and the setup for that was very troublesome.

Moreover, in order to cause the laminated plastic film 2 to travel in the passage in the folding device 5, it is necessary to pass the plastic film 2 from above the passage 14 to the inside of the passage of the laminated plastic film 2. Also, there is a problem that the operation of arranging is also troublesome, and that there is a problem that a relatively large number of man-hours are required for the operation, and that there is a high possibility that an operator touches the heated heat-sealing roll during the operation. It was

The present invention advantageously solves the above-mentioned problems of the prior art, can deal with the change of the width of the laminated plastic film very easily, and the insertion operation of the plastic film can also be performed very easily and quickly. be able to. A folding device of a general-purpose type is provided.

(Means for Solving the Problems) A folding device for a pay-out film in an automatic filling machine according to the present invention is particularly equipped with one of brackets for contacting both side edges of the pay-out film to regulate the position of the pay-out film in the width direction. The inner surface guide means protruding to the side and contacting the inner surface of the feeding film, and the advancing / retreating member having a substantially U-shaped planar contour shape and capable of changing the amount of projection from the bracket are also formed. The outer surface guide means projecting to one side and contacting the outer surface of the feeding film is composed of two rods horizontally planted in the bracket on both sides of the inner surface guide means. The screw means is provided to restrain the movement of the inner surface guide means with respect to.

(Operation) In this folding device, when the film unwound from the winding roll is used as a three-side sealed or four-way sealed filled packaging bag, each side end of the unwound film is formed into a U-shape. Insert the feed film between the forward / backward movement member and the rod to be formed from the front side thereof, and evenly contact both side edges thereof with the bracket,
Since it can be correctly folded in two from the central portion in the width direction, the operation of inserting the plastic film into the folding device can be performed extremely easily and quickly as compared with the conventional technique, and the operator It is possible to sufficiently eliminate the risk that the will contact the heat seal roll.

Further, in this device, when the width of the pay-out film is changed, it is possible to easily cope with it by appropriately changing the amount of protrusion of the U-shaped advancing / retreating member from the bracket. It is extremely easy to complete compared to the prior art.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing an embodiment of the present invention, in which 21 is a bracket attached to the body of an automatic filling machine, for example, by bolts and nuts, and 22 and 23 are respectively from this bracket 21 to one side thereof. The inner surface guide means and the outer surface guide means projecting inward are respectively shown.

Here, the inner surface guide means 22 is composed of a frame body 24 having a substantially U-shaped planar shape, and a rod-shaped sliding member 25 attached to the center portion of the frame body 24 in the width direction and penetrating the bracket 21. Therefore, the protrusion amount from the bracket 21 is configured by the advancing / retreating member 26 that can be appropriately changed as needed, and the relative displacement of the advancing / retreating member 26 with respect to the bracket 21 is set to the upper portion of the bracket 21 by the first As is clear from the view shown in FIG. (B), the slide grooves 27 into which the respective leg portions of the frame body 24 can be just fitted are provided respectively, and the bracket 21 is provided with a rod-like slide member between the both slide grooves. This is ensured by providing a sliding hole 29 that allows the passage of 25.

Further, the outer surface guide means 23 of this example is the inner surface guide means 22.
Brackets 21 on both sides of the
It is composed of two cylindrical rods 30 that are horizontally planted in the.
Here, the protruding length of the cylindrical rod 30 from the bracket can be appropriately selected within a range in which the rod itself can effectively restrain the laminated plastic film from the outer surface side.

Further, in this example, a push screw 31 is screwed onto the bracket 21 from the top surface thereof, and the tip end of the shaft portion of the push screw 31 is inserted into the slide hole 29 so that the slide hole 29
The rod-shaped sliding member 25 penetrating to the
If it can be locked to the bracket 21, tighten it.

Also in the apparatus shown here, it is preferable that the inner surface guide means 22 is provided with a tail portion 22a that projects downward from the tip portion thereof.

By the device configured as described above, the laminated plastic film having a predetermined width, when accurately folded in two from the center in the width direction, in a state where the bracket 21 is fixed to the automatic filling machine, First, the set screw 31 is sufficiently loosened, then, the amount of protrusion of the inner surface guide means 22 from the bracket 21 is set to an amount according to the width of the laminated plastic film to be applied, and then the set screw 31 is loosened. , The rod-shaped sliding member 25, and by extension, the inner guide means 22 to the bracket
The device is set up by locking it to 21 and thereafter, the respective side ends in the width direction of the laminated plastic film pulled out from the take-up roll, from the front side of the inner surface and outer surface guide means 22, 23, Figure 1 between them
As shown by the phantom line in (a), by this, the inner surface of the laminated plastic film 22
In addition, the outer surface of the laminated plastic film is brought into contact with the outer surface guide means 23, each side edge of the laminated plastic film is brought into contact with the bracket 21, and the leading end portion of the laminated plastic film also serves as a feeding roll. Pass through a seal roll, a horizontal seal roll, and a cutter roll in order.

In such a state, by operating the respective rolls, and by extension, the automatic filling machine, the laminated plastic film is accurately guided from the center portion in the width direction thereof based on the guiding action of the inner and outer surface guide means 22, 23 and the bracket 21. It will be folded in two.

As described above, in this folding device, the width of the laminated plastic film can be changed very easily by changing the protrusion amount of the inner surface guide means 22 from the flange 21. The insertion of the plastic film into the device can be performed very easily and in a short time by inserting the side end portions of the plastic film into the guide means of the inner and outer surfaces from the front side thereof. .

(Effect of the Invention) Thus, according to the present invention, when the pay-out film is used as a filled packaging bag that is sealed on three sides or four sides, the setup of the folding device for changing the width of the film and the like are performed in comparison with the prior art. In addition to being extremely easy, the operation of inserting the film into the folding device is also extremely simple and quick, and there is sufficient risk of burns to the operator during the insertion operation. Can be excluded.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, and FIG. 2 is a view showing a conventional example together with a main part of an automatic filling machine. 21 ... Bracket, 22 ... Inner surface guiding means 23 ... Outer surface guiding means, 24 ... Frame 25 ... Rod-like sliding member, 26 ... Advancement / retraction member 27 ... Sliding groove, 29 ... Sliding hole 30 ... Cylindrical rod, 31 ... Push screw

Claims (1)

[Scope of utility model registration request] 1. A bracket which is fixed to the body of an automatic filling machine and which contacts both side edges of the feeding film to regulate the widthwise position of the feeding film, and an inner surface of the feeding film which projects to one side of the bracket. A folding device for folding the payout film into two in the width direction thereof, comprising: an inner surface guide means for contacting the inner surface guide means, and an outer surface guide means for contacting the outer surface of the payout film; Is substantially U-shaped, and is composed of an advancing / retreating member capable of changing the amount of protrusion from the bracket, and the outer surface guide means is composed of two rods horizontally planted in the bracket on both sides of the inner surface guide means. A folding device for a pay-out film in an automatic filling machine, in which the bracket is provided with screw means for restraining the movement of the inner surface guide means.