JPH05132026A - Apparatus for enclosing flatly stacked paper - Google Patents

Abstract

PURPOSE:To enclose sheets of paper stacked flatly such as paper napkins correctly without being troubled by bending or loosening. CONSTITUTION:A synthetic resin film 2 is shaped in a sleeve form with a bending trunk 3. Prior to insertion into the sleeve-shaped film 2', sheets of paper stacked flatly 1 are compressed by a presser 15. The papers stacked flat are then inserted without pressure into the film by making the presser 15 move forward together with a pusher 16 while the compressed state of the sheets of paper stacked flatly is kept as it is. After the insertion, the presser and the pusher are retreated, letting the sheets of paper stacked flatly 1 restore their original state by themselves in the sleeve-shaped film 2'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for inserting and enclosing flat stacked paper such as paper napkins, paper towels and tissue papers in a tubular film.

[0002]

2. Description of the Related Art Conventionally, a fixed number of paper napkins and the like have been flatly stacked and enclosed in a bag formed of a synthetic resin film for market use. This flat stacking paper is required to be contained in the bag without play, and for that purpose, the flat stacking paper is required to be compressed, inserted into the bag, and expanded so that the bag is inflated by its restoration.

[0003] Conventionally, as a means for industrially enclosing the flat stacked paper, a synthetic resin film is introduced into a tubular folding cylinder having a rectangular tubular shape or the like and shaped into a tubular shape, while the tubular film is inside. That is, the flat stacking paper is press-fitted into the tubular folding cylinder, and as this press-fitting means, a fixed guide plate inclined toward the inlet of the cylindrical folding cylinder is installed, and the flat stacking paper is pushed by the pusher. The means for compressing while slidingly transferring to the inner surface of the fixed guide plate by pressing is inserted into the tubular folding cylinder, that is, the tubular film, and after the press-fitting, the flat stacking paper is pulled out from the tubular folding cylinder together with the tubular film. It is heat-sealed and enclosed.

The above-mentioned flat stacking paper is folded and flat-stacked in the front stage of the cylindrical folding cylinder. At this time, the flat stacking paper is stacked more bulky than the cylindrical folding cylinder and slidably contacting the fixed guide plate. It is transferred, compressed according to the inclined surface, and pressed into the tubular folding cylinder.

[0005]

However, in the above-mentioned conventional example, a large resistance is exerted when the flat stacking sheet moves while slidingly contacting the fixed guide plate and is compressed according to the inclined surface and press-fitted into the cylindrical folding cylinder. It tends to cause stacking deviations, and when pressing the pusher as it is to perform the press-fitting as it is, wrinkles and folds are created in the flat stacking paper of the upper layer to discharge defective products, and this trouble Therefore, there is a problem that the operation must be stopped.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a device for enclosing flat stacked paper which effectively solves the above problems. As a means for this, the flat stacked paper is shaped into a cylinder. A bottom guide that supports the lower surface of the flat stacking paper is provided on the introduction port side of the tubular folding cylinder, and a presser that presses down the flat stacking paper toward the bottom guide and compresses the flat stacking paper above the bottom guide. A pusher for pushing the inside of the tubular folding cylinder is provided, and the presser and the pusher are advanced together while maintaining the compressed state of the flat stacking paper by the presser, and the inside of the tubular folding cylinder, that is, the tubular film. Is inserted into the
It is configured to retreat after insertion and release the above-mentioned upper presser and tail push to allow restoration of the flat stacking paper.

[0007]

As described above, the flat stacking paper is preliminarily formed in a compressed state by the presser, and while maintaining this state, the presser and the pusher advance together and the press-fitting insertion into the cylindrical folding cylinder is performed. As a result, the flat stacking paper is loosely inserted into the tubular folding cylinder without the resistance to press-fitting such as when press-fitting. Therefore, there are no troubles such as stacking and wrinkles or folds created by the conventional device for flat stacking paper, and the flat stacking paper is loosely inserted into the cylindrical folding cylinder, and the presser and pusher are retracted to cause the upper presser ( By releasing the compression and pushing to allow the flat sheet to be restored, the work of filling the tubular film or bag without play is properly performed.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings.

The flat stacking paper 1 is, for example, paper napkin, tissue paper or towel paper. These flat sheets 1 have elasticity and can be compressed and restored, and by utilizing this elasticity, they are enclosed in a bag formed of the synthetic resin film 2 without play.

The synthetic resin film 2 is tubularly shaped by being introduced into the tubular folding cylinder 3. This tubular folding cylinder 3 defines a rectangular or elliptical inner cavity, for example, a plate material is bent into a tubular shape, and a film introduction guide 8 is provided on the film 2 and flat paper introduction port 6 side. While guiding the film 2 on the surface of the guide 8, the film 2 is introduced into the tubular folding cylinder 3 and shaped into a tubular shape.

Further, at the same time when the plate material is bent into a cylindrical shape, both ears of the plate material are bent at a substantially right angle downward to the central portion of the bottom plate to form a palm-shaped film closing guide 4, and between the closing guides 4. The ears 2 of the film 2 are intervened in the closing slit 5 formed in the fold, and the film 2 is added to the inner surface of the folding cylinder 3 to form a tubular shape such as a prism or an ellipse suitable for the inner surface shape. To do.

The film 2 is formed into a tubular shape by the tubular folding cylinder 3 as described above, and the flat paper stack 1 described below has a lead-out port 7 introduced therein.
It is derived from.

A bottom guide 9 for the flat stacking paper 1 is provided on the introduction side of the tubular folding cylinder 3, and the bottom guide 9 is attached to the tubular folding cylinder 3.
Installed so as to be flush with the bottom plate 10 of the
Of the bottom plate 10 is formed into a convex V-shape, while the rear end of the bottom plate 10 is notched into a concave V-shape.
Get in touch with.

The side guides 11 for the flat stacking paper 1 are provided along the ears of the bottom guide 9 so that the flat stacking paper 1 is held by the bottom guide 9.
Then, it is introduced into the tubular folding cylinder 3 while being regulated by the side guide 11. Place the rear end of the bottom guide 9 on the flat stacking paper 1
As a pedestal 12 and a flat stacking process (not shown) on the pedestal 12
Conveyor 13 with a fixed number of flat sheets 1 stacked flat in
It is supplied onto the pedestal 12 through the.

For example, the feed direction of the conveyer 13 and the feed direction of the bottom guide 9 are arranged at right angles to each other, and the carry-out end of the conveyer 13 is provided so as to overlap with the upper surface of the pedestal 12. The flat stacked paper 1 carried to the carrying-out end is applied to the side guide 11 on the receiving table 12 and stopped at a fixed position on the receiving table 12.

Next, the inserting device 14 for inserting the flat stacking paper 1 supplied on the receiving table 12 into the cylindrical folding cylinder 3 will be described. The insertion device 14 includes a presser 15 that presses the flat stacking paper 1 toward the bottom guide 9 and compresses it, and a pusher 16 that presses the bottom of the compressed flat stacking paper 1.

The presser 15 and the pusher 16 move forward together, and while the presser 15 holds the compressed state of the flat stacking paper 1, the pusher 16 pushes it into the cylindrical folding cylinder 3 and inserts it. Therefore, the flat stacking paper 1 is loosely inserted into the folding cylinder with a gap between the flat stacking paper 1 and the top plate of the cylindrical folding cylinder 3 without any press-fitting resistance.

The presser 15 and the pusher 16 insert the flat stacking paper 1 into the tubular folding cylinder 3, that is, the tubular film 2'and then retreat. Release the push. This allows the tubular film 2 '
The flat stacking paper 1 inserted inside is restored and naturally comes into close contact with the inner peripheral surface of the tubular film 2 '.

The presser 15 and the pusher 16 are also provided.
As a means for preventing the misalignment of the flat stacking paper by the presser 15 when the paper is retracted, a stopper 21 that abuts on the bottom of the flat stacking paper 1 is provided. The stopper 21 is arranged in the inlet 6 of the tubular folding cylinder 3 or in the vicinity thereof, and when the flat stacking sheet 1 is inserted into the folding unit 3, the stopper 21 waits at a position where it does not interfere with the flat stacking sheet 1 and then inserts the flat sheet into the flat sheet. The insertion device 1 is advanced so as to face the bottom face of the stack 1 and regulates the bottom face.
After completing the retreat in 4, retreat to the standby position. Next, the flat stacking paper 1 is pulled out together with the tubular film 2'from the outlet 7 of the tubular folding cylinder 3 and used for sealing.

As an example, the presser 15 and the pusher 16 are formed as an integral structure, and the presser 15 follows the pressing and compressing of the flat stacking paper 1 to follow it.
6 descends along the tail of the flat stacking paper 1 to form a tail pushing state. For example, a plurality of horizontal bars 17 are extended substantially parallel to each other in the front-back direction on the upper surface of the flat stacking paper 1 and used as the pressers. A plurality of vertical bars 18 are extended substantially parallel to each other and used as pushers. Therefore, the horizontal bar 17 and the vertical bar 18 are arranged at a substantially right angle.

The horizontal bar 17 and the vertical bar 18 can be made of round bar material or plate material, respectively. Further, the horizontal bar 17, that is, the presser 15, preferably vertically cuts the upper surface of the flat stacking paper 1 in the front-rear direction, and the front end of the flat stacking paper 1 slightly projects forward from the front end surface of the flat stacking paper 1 so as to press the top. Further, the vertical bar 18, that is, the pusher 16 is made shorter than the stacking height of the flat stacking paper 1, and when the presser 15 presses the flat stacking paper 1 upwardly and compresses it as described above, the bottom guide follows the bottom surface of the flat stacking paper. 9 ie cradle 1
It descends to near the surface of No. 2 and forms a tail pushing state.

Thus, the flat stacking paper 1 is pressed by the horizontal bar 17 by pressing the entire length in the front-rear direction against the bottom guide 9, and while maintaining this compressed state, the vertical bar 18 is pushed backwards to insert the paper. , After retreating after insertion, release the upper and lower pressers and prepare for the next time. The insertion device 14 includes the presser 15 and the pusher 1 described above.
As means for moving the 6 up and down and moving up and down, for example, a cylinder 19 for longitudinal movement and a cylinder 20 for vertical movement are provided.

Thus, the flat stacking paper 1 is inserted into the tubular flume 2'by the inserting device 14 and then self-recovered to form the film 2 '.
From the inside of the tubular folding cylinder 3 in a state of being closely attached to the tubular film 2 '
With this, it is pulled out and used as a seal to form a sealed bag.

For example, on the outlet 7 side of the tubular folding cylinder 3, there is provided a conveyer 22 for pulling out the tubular film 2'for containing the flat stacking paper 1 while sandwiching it from above and below, and stopping the conveyer 22 intermittently. Sometimes, the flat stacking paper 1 is inserted, and after the insertion, the flat stacking paper is drawn out by driving, and the ears of the tubular film 2'closed by the closing slits 5 at the exit side of the discharging conveyor 22. A hot platen 23 for sealing the parts is provided, and a hot platen 24 for sealing between the adjacent flat stacked papers 1 and 1 is provided, thereby forming individual sealed bags for the flat stacked papers.

The tubular folding cylinder is made of a plate material,
This includes the case where the bar is placed in a key place to form a body.

[0026]

According to the present invention, the flat stacking paper is pre-formed in a compressed state by the presser, and while maintaining this state, the presser and the pusher advance together and are not press-fitted into the cylindrical folding cylinder. Insertion is done. As a result, the flat stacking paper can be inserted into the tubular folding cylinder without press-fitting resistance such as when press-fitting, and therefore, the slipping of the flat stacking paper, wrinkles and creases can be effectively prevented. The flat stacking paper is loosely inserted into the tubular folding cylinder, and then the presser and the pusher are retracted to allow the flat stacking paper to be self-recovered, and the flat stacking paper can be filled in the tubular film, that is, the bag without play.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an apparatus for enclosing flat stacked paper according to the present invention.

FIG. 2 is a side view of the sealing device.

FIG. 3A is a cross-sectional side view of a state in which the flat stacking paper is inserted into the tubular folding cylinder by the insertion device and immediately before the compression is started.

FIG. 3B is a cross-sectional side view showing a compressed state before the flat stacking paper is inserted into the tubular folding cylinder by the insertion device.

FIG. 3C is a cross-sectional side view showing a state in which the flat stacking paper is compressed and inserted into the tubular folding cylinder by the inserting device.

FIG. 3D is a cross-sectional side view showing a state in which the flat stacking paper is inserted into the tubular folding cylinder by the insertion device and retracted.

FIG. 4 is a cross-sectional plan view showing a state in which the flat stacking paper is being inserted into the tubular folding cylinder by an inserting device.

FIG. 5 is a side view of a device for pulling out and stacking the flat stacked paper sheet from the inside of the tubular folding cylinder.

[Explanation of symbols]

 1 Flat Stacked Paper 2 Film 2'Cylindrical Film 3 Cylindrical Folding Cylinder 9 Bottom Guide 11 Side Guide 12 Cradle 14 Insertion Device 15 Presser 16 Pusher 17 Horizontal Bar 18 Vertical Bar 21 Stopper

Claims (3)

[Claims] 1. A strip-shaped film is introduced into a tubular folding cylinder to form a tubular shape, and a flat stacking paper is inserted into the tubular folding cylinder from the film introduction port side of the tubular folding cylinder, that is, into the tubular film. After the insertion, the tubular film in which the flat stacking paper is inserted is drawn out from the inside of the cylindrical folding cylinder and sealed to form a flat stacking paper enclosing bag. A bottom guide that supports the lower surface of the flat stacking paper and guides the introduction is provided on the side, and a presser that presses the flat stacking paper toward the bottom guide and presses it above the bottom guide, and the flat stacking paper in the cylinder. A pusher for pushing the shape folding cylinder into the shape folding cylinder is provided, and the presser and the pusher are advanced together to insert the flat stacking paper in a compressed state into the cylindrical folding cylinder, that is, the cylindrical film, and retract after the insertion. Then, release the above-mentioned top press and tail push to allow the restoration of flat stacking paper. Flat pile encapsulation apparatus characterized by the. 2. The presser and pusher are formed into an integral structure, and the presser descends along the bottom of the flat stacking paper to form a tail pushing state following the presser pressing and compressing the flat stacking paper. The device for enclosing flat stacked paper according to claim 1, wherein: 3. The flat sheet stacking device according to claim 1, further comprising a stopper that comes into contact with a bottom portion of the flat sheet stack when the presser and the pusher retract.