KR970004730B1 - Surface scoring apparatus - Google Patents

Abstract

None.

Description

Pretreatment device for multi-layer single sheet bending

1 is a plan view of a pre-treatment apparatus for multi-layered single sheet bending processing according to an embodiment of the present invention.

2 is a view cut out part of the side view.

3 is an enlarged sectional view taken along line III-III of FIG.

4 is an enlarged cross-sectional view taken along line IV-IV of FIG.

5 is an enlarged plan view of a rotating figure of a slitter part.

6 is a cross-sectional view taken along the line VI-VI of FIG.

7 is a perspective view showing a state in which the multi-layered monolayer processed by the apparatus of the present invention is bent at a right angle.

* Explanation of symbols for main parts of the drawings

a: Feeding bed b: Slaughter section

c: Scorer part 1: Rotating person

2: sending roller 3: ruled line roller

3a: push head B: multilayer mono

The present invention relates to an apparatus for pre-processing a multi-layered single sheet, ie, three or more layers of single sheet at a right angle to facilitate bending. Usually, in the single layer of the 1st to 2nd layer, as a pretreatment apparatus for bending this at right angles, there is a scorer which puts a ruled line in the bent part of a single layer. By the way, in the case of multi-layered monolayers of three to four layers, only bending with ruled lines requires considerable force to bend, and the bends are twisted or uneven, so that the clean and smooth right angles are cut. Cannot be formed. Thus, in the case of multi-layered single-layered balls having three or more layers, a method of cutting a notch at a bent position is adopted. Thus, a notching machine is used as a pretreatment device for bending processing.

However, the above-mentioned notching machine shaves a part of the danbool thinly, which may lead to a decrease in strength of the monool. The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide an apparatus capable of forming a clean and smooth right angled fold without lowering the strength of the monolayer. In order to achieve the above object, in the pretreatment apparatus for multi-layer single sheet bending processing of the present invention, a multi-layered single sheet is supplied between the sludge portion in front of the feeding bed between the rotating person and the corresponding male roller. At the same time as the thickness of the owl, a predetermined thickness is provided, and at the same time, the front face of the slitter part is provided with a pressure head of the ruler roller in the feeding direction of the multi-layered monolith. It is to be installed in the same line as the edge of the blade.

In addition, it is preferable that the rotating figure of the slitter part has a saw blade shape, and forms the shape which the line which forms the edge of each blade becomes a straight line. According to the pre-treatment apparatus for multi-layer single sheet bending processing of the present invention configured as described above, first, in the slitter part, 1 to 2 layers are left on one side of the single sheet in the slitter part and the cut marks are placed on the other side. The ruler line is then pressed in the scorer section along the curve of the cocktail. Thus, the danbool can be bent at a right angle with a cut inward.

In addition, since the rotating figure of the slitter part has its shape and its rotational speed becomes zero relative to the danbool, it pulls the danbool like a knife so as not to generate a stake. EMBODIMENT OF THE INVENTION Hereinafter, one example of implementation of this invention is demonstrated based on drawing.

In Fig. 1 and Fig. 2, reference numeral a denotes a paper feed bed, and reference numeral d denotes a frame provided continuously in front of it, and the slitter portion b and the scorer portion C are formed on the frame d. Viewed from the sheet feeding bed a side, the slitter part b is attached to the front with the scorer part C behind. The slitter tub (b) is fixed to the rotating person (1) and the lower side (5) fixed to the upper shaft (4) of the upper and lower pairs (4) and (5) of the frame (d) is freely rotated The thickness of the multi-layered single layer (B) made of a feeding roller (2) corresponding to the rotating person (1), and sent from the paper feed bed (a) between the rotating person (1) and the sending roller (2) The space | interval which is smaller by the quantity corresponded to the thickness for 1 to 2 layers is provided further.

As shown in FIG. 6, the rotating figure 1 is formed of a disc having saw blades 1a formed at the periphery, and the saw blades 1a are formed so that the lines connecting their respective blade ends are straight. . On the other hand, the scorer portion C is a ruled roller 3 fixed to the upper shaft 6 of the upper and lower pairs of sides 6 and 7 on which the rotation is freely installed on the frame d in front of the slitter portion b. And, it is fixed to the lower shaft (7) is made of a water roller (8) corresponding to the ruled roller (3), and the multi-layered single-layer (B) supplied between the ruled roller (3) and the roller (8) Install a gap slightly smaller than the thickness equivalent of). The scorer portion C has a ruled roll 3 on which the pressing head 3a is in line with the blade edge of the rotating figure 1 of the slitter portion b in the feeding direction of the multi-layered single-bottle B. Install it to be located.

Although not shown, the upper and lower sides 4 and 5 of the slitter part b and the upper and lower sides 6 and 7 of the scorer part C are not shown, but the slitter scorer of the prior art is similarly used by a suitable driving device. It interlocks with each other and rotates in the same direction as the feeding direction of the multi-layered single bottle B. Thus, such a device is to send the multi-layer mono (B) from the paper feed bed (a), the multi-layer mono (B) is sent to the rotating figure (1), the sending roller (2), ruled roll (3), It is fed forward by the rotation of the water roller 8, and in the middle of the slitter part b, the first and second layers of the lower surface side are left on the upper surface side of the multi-layered single bottle B by the rotating person 1 The cut line 10 is formed, and in the scorer portion C, the cut line 10 is pressed by the ruled roll 3 to form the ruled line 11 along the portion, and the edge of the cross-section inlet is formed. Bend obliquely to push into the cut 10.

Then, the multi-layered monool (B) processed as described by this device is bent at a right angle with the cut inward in the cut 10, it is actually bent to cut the cut (the outside of the multi-layered monool (B) 10) Since only one part of the second layer is left without the addition, it is generally bent at right angles to be clean and smooth just like bending the one or two layers of danbool. In this case, the inlet edges of the cross-sections of the cut 10 that are inside the bent portions protrude from each other to prevent bending, but the cross-sections of the cuts 10 are pressed obliquely in a state where the inlet edges are pressed inwards by ruled lines. Since it is bent, it protrudes and a force is applied, so as shown in FIG. 7, it is pushed to be eaten deeply toward the corner of the cut 10 and crushed, and in fact, the bending of the multi-layered single layer B is lowered. It does not inhibit and does not adversely affect the formation of a fold.

In addition, the apparatus adjusts the distance between the upper and lower sides 4, 5, 6, and 7 of the slitter portion b and the scorer portion C, similarly to the conventional slitter scoter. By this adjustment, not only can correspond to the multi-layered single-layer thickness, but also the depth of the cut 10 can be set arbitrarily. The number of layers left on the outer side of the cut 10 is determined by the purpose of use of the multi-layered short beam B, but the demand for the bent portion depends on the strength.

That is, if a large amount of strength is required for the bent portion, two layers may be left, and if the strength is somewhat sacrificed, a single layer may be left when a clean and fine cut is made. If necessary, only the liner may be left. Since this invention is the above-mentioned structure, it achieves the same effect as described below. (1) It is not necessary to cut a part of the danbool by cutting the notch in the bent portion, and to reduce the thickness of the danbool, so that the strength of the danbool is not reduced. (2) The structure is simple, Since it can be utilized, the preprocessing of the bending of a multi-layered monolith can be performed at low cost.

Claims (2)

The feeder bed (a) and the slitter part (b) in front of it correspond to the thickness of the multi-layered single-layer (B) supplied between the rotating person (1) and the feeding roller (2) corresponding thereto. It is set to have an interval smaller by a thickness corresponding to a predetermined thickness than the thickness, and the scorer portion c is placed in front of the slitter portion b, and the pressing head 3a of the ruled roll 3 is the multilayer described above. The pretreatment apparatus for multi-stage single-fold bending processing provided so that it may be located in the same straight line with the blade edge | tip of the rotating object (1) of the slitter part (b) in the feeding direction of a single bowl (B). The pretreatment apparatus according to claim 1, wherein the rotating figures 1 of the slitter part b are formed in a saw blade shape and a line connecting each blade tip in a straight line shape. .

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