JPS6012936B2 - Manufacturing method for pleated thin film cylindrical bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves attaching an adhesive or an adhesive to a bag-making material in advance at regular intervals, and simultaneously lowering the material in the longitudinal direction and applying a synthetic resin thin film in contact with the material. The tube is lowered in the longitudinal direction at a speed farther than the original fabric, and the same thin film tube is pasted on the Oka raw fabric at regular intervals with the adhesive or adhesive, and the thin film produced due to the difference in the descending speed is applied to the pasted part. The present invention relates to a method for manufacturing a lined thin film inner cylinder bag, which is characterized in that the hairs of the cylinder are formed in a direction perpendicular to the longitudinal direction.

To explain the embodiment of the present invention shown in the drawings, a roll-up material 1' for bag making made of kraft paper, synthetic resin cloth sheet, split cloth, etc. is loosely supported on a machine frame, and the material 1 is moved by a pinch roller 2, 2 (see FIG. 1), it is pulled at a constant speed in the direction of the arrow, that is, in the longitudinal direction.

In addition, a winding tube 3' of a synthetic resin inflation thin film tube 3 made of polyethylene or the like is loosely supported on the rock frame, and the tube 3 is attached to the above-mentioned raw fabric 1.
At the same time, it is pulled by the pinch rollers 2, 2 in the direction of the arrow, that is, in the longitudinal direction, at the same speed as the web 1. However, thin film tube 3
passes between the rapidly rotating rollers 4, 4 provided at the top of the machine frame, quickly descends while being held by the same low hoos 4, 4, and detours around the rotating or floating horizontal rollers 5 from the top downwards to the raw material 1. The material is brought into contact with the material and lowered at a faster speed than the material 1. A sizing machine 6 is provided between the horizontal roller 5 and the take-up source fabric 1', and a heated sizing knife 9 provided on a sizing roller 8 that rotates in a tank 7 of the machine 6 is used to coat the original fabric 1. The adhesive or adhesive 10 is applied in dots at regular intervals. The dotted adhesive 10 adheres to the rapidly descending thin film tube 3 at regular intervals as it detours down the horizontal roller 5 along with the original fabric 1, and the tube 3 and the original fabric 1 are adhered to each other. This adhesion can be achieved by pressing an oscillating roller 11 provided on the machine frame onto the horizontal roller 5 via the thin film tube 3 in an intermittent manner, so that the pressing portion thereof coincides with the adhering portion of the adhesive 10. In this way, the thin film cylinder 3, which descends at a speed farther than the original fabric 1, forms hairs 12 downward by its own weight in a direction perpendicular to the direction of descent (longitudinal direction) on the pasted part due to the difference in the descending speed. I can do it. The hair-attached thin film tube 3' thus formed is superimposed on the center part of the original fabric 1 by the horizontal roller 5 and the pressing roller 11 (see Fig. 3), and in that state is pulled by the pinch loafs 2, 2 and machined. The lower surface of the shaping plate 13 provided on the frame is moved in the direction of arrow a, both sides of the original fabric 1 are folded back onto the upper surface of the shaping plate 13, both edges are pasted, and the rotary cutter 14 cuts 15 into a fixed length.
Then, a cylindrical bag 16 can be formed (FIG. 4). In the figure, 17 indicates a guide loft, 18 and 19 are pressure belt conveyors, 20 is a transmission for driving the rapid rotation rollers 4 and 4, and 21 is a swinging arm that supports the swinging roller 11.
22 is a gear provided on the support shaft of the same arm 21, 26 is the same gear 22
24 is a rapidly descending thin film tube guide plate, 24 is a descending forced jet air pipe of the same thin film tube 3, and 25 is a rapid descending guide belt conveyor of the same tube. Conventionally, a thin film web is guided into the entrance gap of the second conveyor means by a reciprocating motion device for force forming without applying adhesive or adhesive to the original fabric at regular intervals to form the lateral back. ,
After that, since it was to be pasted onto the original fabric, the reciprocating movement of the above-mentioned reciprocating device caused the carefully formed side panel to come off the entrance gap of the above-mentioned conveyor means, thereby safely, quickly and reliably forming the wisteria, resulting in surprising manufacturing efficiency. There were deficiencies that made it difficult to improve.

The present invention has been made in view of the above-mentioned defects, and since the present invention uses the above-described method, it is possible to increase the manufacturing speed of the hair-attached thin-film inner bag 16 and to significantly improve the manufacturing efficiency of the inner bag 16. effective. That is, a method in which the thin film cylinders 3 are adhered at regular intervals to the adhesive or adhesive 10 previously attached to the production fabric 1 at regular intervals, and the backs 12 are formed on the same cylinders 3 by varying the descending speed. Therefore, the shapes 12 can be formed on the original fabric 1 at regular intervals safely, quickly, and reliably without failure.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the method for manufacturing a hair-attached thin-film cylinder inner bag according to the present invention, Fig. 2 is a partially enlarged view of Fig. 1, and Fig. 3 is a plan view of the polymerized state of the hair-attached thin-film cylinder and the original fabric. FIG. 4 is a plan view of the lined thin film cylindrical bag. 1... Original fabric for bag making, 10... Adhesive,
3...Synthetic resin thin film cylinder, 12...Hair, 5.
・・・・・・Horizontal loaf meter - Figure Z Garden O) Figure 4 Figure

Claims (1)

[Scope of Claims] 1. Adhesive or adhesive 10 is applied in advance to a bag-making material 1 at regular intervals, and as the material 1 is lowered in the longitudinal direction, a synthetic resin thin film is placed in contact with the material 1. The cylinder 3 is lowered in the longitudinal direction at a faster speed than the original fabric 1, and the thin film cylinder 3 is pasted on the original fabric 1 at regular intervals with the adhesive or adhesive 10, and the lowering speed is applied to the pasted part. A method for manufacturing a pleated thin film cylinder inner bag, characterized in that the folds 12 of the thin film cylinder 3 caused by the difference in thickness are formed in a direction perpendicular to the longitudinal direction. 2. Claim 1 in which the raw fabric 1 is lowered in the longitudinal direction by detouring the rotating or floating horizontal roller 5.
2. Method for manufacturing pleated thin film cylindrical bag described in Section 1. 3. The method for producing a pleated thin-film cylindrical bag according to claim 1, wherein the raw fabric 1 is kraft paper, cloth, split cloth, or the like.