JP2647540B2 - Paper roll cutting machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION (Industrial application field) The present invention relates to a paper web cutting apparatus for cutting the paper web in the paper box in the axial direction by hand or in an automatic paper web tailoring apparatus.

(Prior Art) FIG. 3 shows an example of a conventional automatic paper winding and tailoring apparatus.

A device (3) for cutting the skin of a web (12) mounted on a support arm (2) rotatably supported on a frame (1) of an automatic web tailoring device is attached. The skin cutting device (3) has a bamboo spatula (not shown), and moves the bamboo spatula in the axial direction of the paper roll (12) to cut several sheets of the skin layer. The cut defective skin is wound up by a paper discharge winding device (4).

The skin on the web is fed out by a belt conveyor (5) and checked for scratches by a flaw detection sensor (6). When a good quality skin is obtained, the skin is set on a table (7) and V-shaped by a triangular cutting device (8). Along the edge of the V-shape, the double-sided adhesive tape is applied by the tape applying device (9), and the tip tape of the tab stocker (11) and the T-tab are attached to the V-shaped end portion by the tab applying device (10). Tailoring of the V-shaped tip of the pasted web is completed.

(Problems to be solved by the invention) Since the surface of the rolled paper whose storage condition is improperly stored undulates along the circumferential direction, several sheets of this undulated skin must be cut off with a bamboo spatula. It may not be cut completely along the entire length in the axial direction. To prevent this, if a sharp cut is made on the bamboo spatula, the high-quality part inside the epidermis will be damaged and the damaged paper will increase.

In addition, since several skin portions are cut off with a bamboo spatula, the cut defective skin portions become thicker and collectively fall, so that this portion cannot be collected smoothly by the paper discharge winding device.

The present invention has been developed to address such a problem, and has as its object to cut off only the top skin of the web.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 and 2 corresponding to the embodiment. A bonding head (23) having a tape reel (21) and a winding head (26) having a winding reel (24) for winding the adhesive tape P adhered from the bonding head (23) are wound on a paper roll (12). ) Is provided so as to be movable in the axial direction.

(Function) In the present invention, the adhesive tape is applied to the entire surface of the web in the axial direction by the above-mentioned means, and the tape is peeled off, or a part of the tape is peeled off. Only the top skin can be cut.

If the top skin can be cut, the skin having a cut is continuous with the outer peripheral paper of the rolled paper, and this cut is fed out by a belt conveyor (5) flaw detection sensor (6), etc. While being checked, the paper is fed out from the web until a good quality paper is obtained, cut into a V-shape on the table (7), and a double-sided adhesive tape for paper splicing or a tip tape and a T-tab are attached. The paper cut in the V-shape is collected by the paper discharge winding device (4).

(Embodiment) An embodiment of the present invention will be described below with reference to FIG. 1. An adhesive tape reel (21) and a brake device (22) acting on a shaft on which the reel is mounted, and an axial direction of a web (12). (23) Attaching head (23) that moves in the axial direction by a device (for example, a screw shaft is not shown by its screw member or the like) that moves
And a reel (24) for winding the adhesive tape P, and an unwinding and rewinding motor (with a brake) (25) provided on the shaft of the reel (24). ) And a take-up head (26) that moves in the axial direction.

When the width of the web (12) and the position of the end face of the web (12) are detected by a lancer (not shown), the attaching head (23) and the winding head (26) come into contact with each other. After moving to the right end surface position of the web in FIG. 1, the application head (23) is lightly pressed against the skin of the web. At this time, a portion w where the front end of the skin of the web is glued to the surface of the web is removed and pressed. The pasting head (23) moves to the left in this light pressure contact state and the adhesive tape P is applied over the entire width in the axial direction of the web (12) for applying the adhesive tape P to the skin of the web. Stops at its leftmost position. Next, the take-up head (26) moves to the left in the same manner as described above without pressing against the take-up paper (12), and comes to the left end position of the application head (23). Shows the adhesive tape and the skin of the paper roll attached to it. The cut surface of the cut skin does not need to have a sharp cut as cut with a knife. The cut end hangs downward and is fed from the web as described in the section of [Action].

FIG. 2 shows a second embodiment of the present invention, in which an adhesive tape P is not applied over the entire width of the web in the axial direction, and the same bonding head (23) and winding head (26) as in FIG. A roller (27) (one to several) is provided, and the pressure roller (27) is pressed against the skin of the web (12), and is moved in the axial direction while a part of the pressure-sensitive adhesive tape is applied by the application head (23). The operation of peeling off with the winding head (26) is repeated, and the entire width of the skin is sequentially cut.

(Effect of the Invention) Thus, according to the present invention, a bonding head having an adhesive tape reel for adhering to a paper roll and a winding head having a winding reel for winding the adhesive tape adhered from the bonding head are provided. Since it is provided movably in the axial direction of the paper roll, adhesive tape can be attached to the top skin of the paper roll, and this can be peeled off, so even if the skin is waving on many small surfaces, Only one sheet can be cut, and only one piece of skin is cut, so even if cut, the skin is continuous with the paper roll, so there is no part that falls from the paper roll, making it easy to collect and dispose of defective skin. Has the effect of

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention, FIG. 2 is a front view showing another embodiment of the present invention, and FIG. 3 is a perspective view of an automatic paper web tailoring apparatus. (12)… Winding paper, (21)… Adhesive tape reel (23)… Sticking head, (24)… Winding reel (26)… Winding head

Claims (1)

(57) [Claims] A sticking head having an adhesive tape reel for adhering to a web and a winding head having a winding reel for winding the adhesive tape adhered by the sticking head are movable in the axial direction of the web. A web-cutting machine for cutting webs, which is provided.