JPS5811556Y2 - Automatic paper pattern peeling device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an automatic paper pattern peeling device, and more specifically, to a device that automatically peels off a pattern cut out from a relatively thick sheet such as cardboard.

For example, in the production of a paper pattern for a cardboard box, the paper pattern S2 that has been die-cut into a desired box shape on a single sheet in the die-cutting process is left on the die-cut sheet S as shown in FIG. Although it is separated from the paper S1 side by the cutting line CL over the entire periphery, the cutting line CL
Since the sheet is very narrow, it remains attached to the remaining paper 80 side in a fitted state and is fed in the state of the die-cutting sheet)S.

For this reason, in the past, devices such as a vibration type and a suction type have been typically adopted as devices for peeling the pattern paper S2 from the remaining paper S1 side while the die cut sheet S is being fed, but both are large-sized devices. It requires large and expensive equipment.

In particular, in these devices, the vibration and suction effects work over the entire pattern part of the die-cutting sheet.
The paper pattern is not always peeled off from a certain position or part with respect to the remaining paper side, but it tries to be peeled off from each part as a whole at once, so if the paper pattern is large and has a complicated shape, it may be difficult or impossible to peel it off. This often causes severe peeling, which can easily lead to bending or damage in various parts of the pattern (missing or tearing the liner or filling, etc.).

The present invention has been made in order to eliminate the drawbacks of the conventional device described above, and its purpose is to feed the remaining paper side and the pattern paper side in different directions in the feeding process of the die cutting sheet. To provide a small-sized automatic peeling device having a simple structure and capable of peeling paper patterns easily and well.

Hereinafter, the present invention will be explained based on illustrated embodiments.

The device of this example is installed on the peeling process side during feeding of die-cut sheets, and as shown in the figure, the entire device is of a conveyor type, and the remaining paper is separated from one feeding line for die-cut sheets. The feeding sections for printing paper and pattern paper are mutually configured.

That is, between the left and right frame plates 1 and 1 in the feeding direction of the cut sheet (also simply referred to as a sheet), there is a drive shaft 2 connected to a motor (not shown) at the front end (right end in the figure).
, slave shafts 3, 3' are connected to each other by gears (not shown) having the same diameter at the rear end, and intermediate shafts 4, 4' are supported at the center by bearings, etc., respectively.

An endless flat belt 8 is connected between each flat pulley 5.6, 7.7' having the same diameter at each end of each shaft 2, 3, 4.4'.
, 8 are in an appropriate tension state, and as shown in Fig. 2, using the flat pulleys 7 and 7' of the intermediate shafts 4 and 4' for delivery, the rear part is made horizontal and the front part is made obliquely downward in the forward direction. It is folded into a letter shape and hung.

The feeding section A of the belt conveyor type shown in the figure is the first feeding section for the remaining paper in the die-cut sheet, and before feeding the sheet, both rows of flat belts 8°8 are connected to the lower intermediate shaft 4'. is operated in close contact with the outer periphery of each flat pulley 7', 7', but when feeding a sheet, the remaining edges are sandwiched and the belt is moved from the front edge side along the oblique part of the flat belt 8, 8. It is designed so that it can be fed while being bent diagonally downward.

In addition, each flat pulley 6', 6' at both ends of the slave shaft 3' in the figure is also called a feed pulley, and the distance G between the flat belts 8, 8 in each row is
corresponds to the thickness of the sheet (remaining paper portion).

As in the case of the flat pulleys 5.6 and 7.7' described above, the pulleys are mounted to the relevant shafts through keys, grooves, etc. so that their positions can be adjusted in the axial direction.

This allows the interval between the belts 8, 8 in each row to be adjusted and changed in accordance with the width of the target seat.

9 indicates a discharge conveyor for waste paper.

Two feed rollers 10 and two feed rollers 11, 11' having the same diameter are arranged at the center of each of the slave shaft 3 and the intermediate shaft 4:4' as shown in FIG. There is.

A feed guide plate 12 is provided below the feed roller 10.
However, there is also a feed guide plate 13 in front of the feed roller 11.
As shown in the figure, the rollers are arranged in three rows and one set on a horizontal line at the same height as the outer periphery of the lower delivery roller 11'.

The feeding section B of the roller conveyor type shown in the figure is a second feeding section for paper patterns, and feeds the paper patterns while being regulated in a horizontal manner.
and the distance between the upper and lower delivery rollers 11, 11' are both set to be the same as the distance G.

However, each set of guide plates 12, 13 may be replaced with rollers.

Under the operation of the apparatus of this example configured as described above, the die-cut sheet S conveyed from the die-cutting process side is moved along the slave shafts 3, 3.
It is actively fed forward from the feeding section on the ' side.

In the feeding process of such a sheet i-S, the remaining paper S at the periphery
Regarding the first side, its both side edges S'1°S/, are connected to the flat belt 8 and feed pulley 6' on each side in the first feeding section A.
It is pushed forward while being sandwiched between the two.

On the other hand, the paper pattern S2 side is fed forward while being sandwiched between each feed roller 10 and the feed guide plate 12 in the second feeding section B.

Then, when the front edge of the sheet) S is transferred to the feeding section on the intermediate shaft 4, 4' side, at this point, each side edge S1' of the remaining paper S1 side is connected to the flat belt 8 and the lower side. The remaining paper S1 is sandwiched between the feeding pulley 7' on the intermediate shaft 4' and is guided by the oblique portion of the flat belt 8 and fed forward and downward in FIG. The side begins to be fed out with the entire side being bent in the shape of a .

On the other hand, the paper pattern S2 side is sent out from the front edge while being regulated in a horizontal state by the respective delivery rollers 11, 11' of the intermediate shafts 4, 4' in FIG.

Remaining paper S1 on the sending unit side in each feeding unit A, B
When the paper pattern S1 and the paper pattern S2 are fed out in opposite directions, the remaining paper S1 side is bent in a slanted shape as a whole as shown in FIG. The front part of the cutting line CL is gradually expanded while taking on the shape of a square.

In this state, the remaining paper S1 side is further fed out obliquely, whereas the paper pattern S2 side has its front edge from the cutting line CL with respect to the remaining paper Sl side as shown in the figure. The paper pattern S2 is actively advanced horizontally while being separated as if it is gradually escaping.
It is automatically peeled off from the side as if it were peeled off by hand, and is quickly sent out along the delivery guide plate 13 as it is.

In particular, in the illustrated example apparatus, during the feeding process of the die-cutting sheet (S), the remaining paper S1 side is compared to the pattern paper S2 side, which is fed out horizontally with the feeding section on the intermediate shafts 4, 4' side as a reference. Downward (however, it can also be reversed upward.

), so that the feeding parts A and B are configured to feed each other in a bent manner, so that the leading edge of the die-cut sheet S and the leading edge of the pattern S2 are separated as shown in Figure 5a. are combined and the remaining paper S
1 remains on the three peripheries of the paper pattern S2, as well as those where the paper pattern S2 is formed in the center of the sheet S and the remaining paper S1 remains on the four peripheries as shown in the figure. By bending the paper S1 side diagonally from its front edge and feeding it out, the paper pattern S2 can be peeled off well.

In addition, by adjusting the interval between the regular belts 8, 8 on both sides of the first feeding section A, various die cutting sheets with different widths can be formed.
can also be applied.

Of course, the present invention is applicable not only to cardboard, but also to die-cut sheets made of soft synthetic resin or rubber, for example, and the desired die-cut portions can be peeled off.

Note that a part of the device of this example may be modified as follows.

[I] The upper slave shaft 3 and intermediate shaft 4 in the figure can be moved in the vertical direction to accommodate sheets with different wall thicknesses.

(II) In the second feeding section B, for example, protrusions and recesses are respectively formed on the feed rollers 11 and 11' of the intermediate shafts 4 and 4' so that the paper pattern S2 side is opposite to the remaining paper S1 side. Push it to the side to make it easier to peel off.

(III:) The first and second feeding sections A and B are both configured as a belt conveyor set or a roller conveyor set.

In addition, when the target die-cutting sheet) S is of the type shown in Fig. 5a, for example, the model of the device itself is such that the first feeding section A is placed horizontally, contrary to the illustration. , the front part of the second feeding section B may be configured to extend upward or downward with respect to the feeding section on the intermediate shaft side.

In addition, if the target sheet is of a type in which two paper patterns of the same shape are cut out on the left and right in the feeding direction, the first feeding section A may be configured as, for example, a bell I/conveyor model as shown in the three examples. good.

In this way, the peeling device of the present invention moves the paper pattern side and the remaining paper remaining around the paper pattern in the required different directions from each other, with the feeding section as a reference relative to the feeding section side, during the feeding process of the die cutting sheet. By configuring each feeding section so as to bend and branch to feed the paper, the remaining paper side and the pattern side of the target die-cut sheet can be separated from each other from the cutting line and quickly peeled off. Compared to the conventional vibration type and suction type devices mentioned at the beginning, the number of parts is reduced, the structure is simplified, and the device can be made extremely compact and inexpensive.

In particular, in this device, for the first feeding section, an endless belt is arranged between the pulleys of the drive shaft, the upper slave shaft, and the upper and lower intermediate shafts, and the horizontal part and the diagonal part are formed in series. and for the second feeding section, a feed guide member is installed horizontally at a sheet interval below each feed roller of at least the upper slave shaft and the upper intermediate shaft inside the belt,
The remaining paper and the paper pattern can be sandwiched and transferred in each feeding section and sent out in different directions while being separated from each other from the sending out section. No special separating member, equipment, or timing setting other than the second feeding section is required, and the remaining paper and the pattern paper can be skillfully and smoothly separated and sent out even when the die cutting sheet is fed at high speed.

Moreover, according to the device of the present invention, unlike the above-mentioned conventional devices, the paper pattern is gradually peeled off while separating the remaining paper side and the paper pattern side from each other's front edges during the feeding process of the die cut sheet. Therefore, even if the paper pattern is complex in shape and large in size, it can be easily and efficiently peeled off.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view schematically showing the device of the present invention, and Figs. 2 and 3 are II in Fig. 1, respectively.
- II line, III - III line sectional view, Figure 4 a, l) is an explanatory diagram illustrating the peeling state of the paper pattern on the die-cutting sheet step by step, Figure 5 a, l) is two types of molds. FIG. 3 is a plan view illustrating a punched sheet. 1... Frame plate, 2... Drive shaft, 5...
...Flat pulley, 7°7' ...Flat pulley, 8.
...Flat bell), 11.11'... Delivery roller, 13... Delivery guide plate, A...
・First feeding section, B...Second feeding section, S...
...Die cut sheet, Sl...Remaining paper, S2...
...Paper pattern.

Claims (1)

[Scope of utility model registration request] A slave shaft and an intermediate shaft are arranged in parallel as an upper and lower pair along the feeding direction of the die cutting sheet, and a drive shaft is arranged behind these at a position below at least the upper intermediate shaft among the intermediate shafts. , an endless belt extending between the respective pulleys of the slave shaft on the drive shaft and the upper and lower intermediate shafts, and a horizontal portion extending from the upper slave shaft portion to the upper intermediate shaft portion and the upper intermediate shaft. By forming a series of diagonal portions extending from the shaft portion to the drive shaft portion and arranging them in parallel, the horizontal portion and the diagonal portion of the belt and the pulleys of the lower slave shaft and the lower intermediate shaft can be connected to each other. The first part that can hold and transfer the remaining paper between
A feeding section is provided, and at least below each feeding roller of the upper slave shaft and the upper intermediate shaft, feeding guide members are installed horizontally at sheet intervals on the inside of the belt. A second feeding section capable of holding and transferring the pattern paper is provided on both sides, and the remaining paper and the pattern paper can be separated and sent out in different directions with respect to the sending section set at the intermediate shaft portion as a reference. Automatic paper pattern peeling device.