JPH0550424B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is a method of cutting a wide long web wound around a roll of paper, plastics, foil, etc. vertically and crosswise using a slitter and a cutter to produce A-size, Cut into sheets of sizes such as B size and 46 size. The present invention relates to a sheet overlapping device using a catch belt which waves the sheet during conveyance, bends the sheet, protrudes the sheet, and receives the sheet.

[Conventional technology]

Conventionally, this type of overlapping device was implemented by using a high-speed conveyor belt to wave the cut sheet in the first stage and project it out, and then in the second stage to convey the sheet in the form of scales, which was caught by a catch roller on a low-speed conveyor. .

[Problem that the invention seeks to solve]

However, such devices have limitations in corrugating the sheet, protruding it, and catching it with a catch roller. The reason for this is that when the sheet moves from a high-speed conveyor to a low-speed conveyor at a high speed, the leading edge of the sheet hits the paper roller directly and strongly, and the concentrated impact force is strong, which causes the leading edge to be easily scratched and bent. It was bringing. It is also thought that the sheet pushes up the above-mentioned cat roller, which causes pressure scratches from the cat roller, causing damage to the sheet.

[Means to solve the problem]

The technical means of the present invention to solve the above problem consists of a low-speed conveyor belt, a presser belt that presses the sheet on the upper part of the low-speed conveyor belt, and a high-speed flight from the high-speed conveyor belt when the sheet is transferred from the high-speed conveyor belt to the low-speed conveyor belt. A catch belt is provided to catch the seat.
The sheet is held between the catch belt and the presser belt, and the sheet is gradually decelerated to adapt to the low-speed conveyor belt, so that the soft catch overlaps the sheet.

[Effect]

The effect of this technical means is as follows.

That is, when a sheet is caught by a fishing roller, the caught sheet is subjected to a strong impact, and the leading end surface of the sheet may be damaged.

Therefore, in order to alleviate the impact on the tip of the sheet, it is necessary to easily and securely overlap the sheet so that the sheet that is ejected at high speed can be soft-catched by sequentially using a presser belt, a catch belt, and a low-speed conveyor belt. , the structure is designed to eliminate damage to the seat.

〔Example〕

The following will be explained based on the drawings.

FIG. 1 is a side view of a conventionally conventional overlapping device for a catch roller. Also, in front of this device, a web (not shown) is cut into sheets 1 of a fixed size by a cutter. The sheet 1 is corrugated and protruded by a corrugating device 2, passes through a guider plate 3, is sandwiched between a low-speed conveyor belt 4 and a presser belt 5, and is conveyed in an overlapping manner by a cathode roller 6 to improve the stacking of the sheet 1. This was carried out as an intermediate process for

When the sheet 1 is moved from the high-speed conveyor belt 8 to the low-speed conveyor belt 4 at the conveyor belt 6, the sheet 1 is corrugated and projected and is flown to a certain position. Depending on the width and length of the sheet 1, the gear roller 6 can be moved left, right, front and back. The position of the roller 6 is determined by the cutting length of the web, and the reference position of the lower roller 7 is determined from the left end of the guider plate 3, that is, according to the length of the sheet. , if it is long on the guider plate side,
Adjustment can be made by moving it to the deposition direction (to the right), which is not shown in the figure. The sheet 1 is now ejected from the high-speed conveyor belt 8 by the corrugating device 2, enters the low-speed conveyor belt 4 and the presser belt 5, and is clamped or caught, and the next sheet 1 is placed on it in a scale-like manner and lapped. However, in the above-mentioned overlap device 10, the sheet 1 directly hits the catch roller 6 that receives the sheet 1, which may cause the tip of the sheet 1 to hit and be damaged.

The side view of FIG. 2 was invented to improve the conventional device described above. Therefore, the present invention
High speed conveyor belt 22, part of which is shown on the left side of the figure
The sheet 11 is conveyed and ejected by an ejector 12. The ejected sheet 11 passes through the guider plate 13 and is sandwiched between the next low-speed conveyor belt 16, the presser belt 14 above it, and the catch belt 52, which is part of a catch belt device 50 that will be explained in detail later, to avoid overlapping. do.
The catch belt device 50 described above includes the driving roller 3
3. It consists of a catch belt 52 via an eccentric roller 53, a guide roller 17, etc. Therefore, the above-mentioned catch belt 52 is connected to a driving roller 33 that rotates the catch belt 52, and a high-speed conveyor belt 2 that rotates the sheet 11.
The angle at which the sheet 11 is easily inserted by the low-speed conveyor belt 16 introduced from 2 and the catch belt 52 on the upper part of the low-speed conveyor belt 16 is called the introduction angle α, that is, the adjustment angle for adjusting the introduction angle α The eccentric roller 53, the guide roller 17 at the position where the sheet 11 is finally clamped, and the tightener 18 which adjusts the tension of the catch belt 52 are rotated in combination. Further, a roller 19 is provided at the shaft end of the guide roller 17 to adjust the interval between the low-speed conveyor belt 16 by adjusting the presser belt 14 that presses the sheet 11.

Also, in the comparison between Catchikoro and Catutchi Belt,
In the former case, when the sheet is conveyed with the presser belt and the low-speed conveyor belt substantially parallel, and the cat roller is sunk from the presser belt, the top of the cat roller hits the low-speed conveyor belt. However, when the sheet is conveyed at a reduced speed, the sheet hits one point of the cathode roller intensively, and the impact at the tip is strong.

On the other hand, since the latter is carried out via a catch belt, the seat hits the inclined surface of the belt, resulting in less resistance and the impact being dispersed, allowing the seat to be caught softly.

Furthermore, since the above-mentioned overall configuration is made up of moving, driving, lifting and eccentric devices, they will be explained below.

First, the catch belt device 50 is moved in accordance with the cutting length L of the sheet 11.
1 can be easily moved in the flow direction even during transport.

The driving device 31 moves the catch belt 52, drives the driving rollers 33 from a drive source (not shown), and drives the low-speed conveyor belt 16.
This is done so that the drive is maintained at the same speed.

The lifting device 41 is a catch belt device 50.
is raised and lowered by a cylinder 43.
Since one or several catch belt devices 50 are provided in the width direction with respect to the paper width of the sheet, each catch belt device 50 is connected to the cylinder 43.
Each device can be raised and lowered at the Furthermore, if a problem occurs due to poor flow of the sheet 11 during operation, the individual catch belt devices 50 can be raised to remove the sheet by using a changeover valve (not shown).

The eccentric device 61 adjusts the eccentricity of the catch belt device 50 according to the thickness of the sheet and the amount of wrap in order to create a gap between the catch belt 52 and the low-speed conveyor belt 16. It is also an important device. In order to obtain this interval H, it is first necessary to adjust the introduction angle α into which the sheet 11 enters, and for this purpose, the introduction angle α of the sheet 11 is first adjusted eccentrically using eccentric rollers 53. The introduction angle α is determined by the vertical position of the apex (reference position) M of the reference roller 54 of the catch belt 52 hooked on the eccentric roller 53 and guide roller 17 and the lower low-speed conveyor belt 16. Next, the relative position with reference rollers 54 interposed within the low-speed conveyor belt 16 will be explained. This can be determined by taking the cutting length L from the end of the guide plate 13 and adjusting the reference roller 54 with the reference position M as the apex. The vertical distance between this reference position M and the above-mentioned inclined catch belt, that is, the reference distance H that allows the most appropriate wrap, can be easily adjusted. Further details are shown in FIGS. 5 to 7.

Therefore, the above arrangement functions as a moving, driving, lifting and eccentric device to improve sheet overlap. Further, regarding the lower low-speed conveyor belt 16, the sheets 11 are suspended and overlapped, and a more detailed operation will be explained with reference to FIG.

This low-speed conveyor belt 16 is composed of a high-speed conveyor belt 22 and a guider plate 13 as shown in FIG.
This is an intermediate conveying device that facilitates the wrapping of the sheet 11 when speeding it down. The flow of the low-speed conveyor belt 16 is generally horizontal, but
When the sheet 11 is projected from the corrugation, the introduction angle α of the upper and lower belts 52, 16 changes depending on the thickness of the sheet,
Some variation may be required depending on the lamination and strength of the stiffness. Accordingly, the low-speed conveyor belt 16 is pushed upward by a push-up member such as a cylinder (not shown) using the reference rollers 54 and adjusted according to the stacking and lapping amount of the sheets to maximize the interval H. This allows the flow of the sheet to conform to the upper belt, resulting in smooth conveyance and overlapping.

Next, referring to FIG. 4, the distance H between the reference roller 54 and the catch belt 52 will be explained in detail.

The amount of adjustment of the interval H varies depending on the basis weight of one or more laminated sheets and the amount of wrap of the sheets. Therefore, depending on the basis weight and the wrap amount, the spacing H can be adjusted freely while observing the sheet flow even during operation. Furthermore, the entire catch belt device 50 can be moved to a predetermined position corresponding to the cutting length of the sheet. In particular, when cutting a wide paper width and performing double cutting (two and three rows of sheets with adjacent cut sheets), individual adjustments can be made depending on the paper width and amount of wrap. It can be used.

5 to 7 show the detailed relationship among the catch belt 52, the reference roller 54, the reference interval H, and the guide roller 17. As described above, in order to determine this reference interval H, the cutting length L is taken from the end of the guider plate 13 in FIG. 2, and the reference roller 54 is adjusted so that the reference position M is the apex. . The role of the reference rollers 54 is to ensure that the low-speed conveyor belt 16 is horizontal and the catch belt 52 is at an introduction angle α, making it easy to introduce the sheet. Also, depending on the standard interval H, the guide roller 17
will bite into the low-speed conveyor belt 16, causing creases B and pressure on the wrapped sheet 11. Therefore, the reference rollers 54 are set slightly higher than horizontal, and the guide rollers 17 are set relative to the reference interval H. This prevents any biting on the low-speed conveyor belt 16, thereby preventing sheet folding and pressure after wrapping.

〔Effect of the invention〕

The present invention ensures overlapping of sheets, and when a moving sheet is transferred from a high-speed conveyor belt to a low-speed conveyor belt, the present invention uses an inclined catch belt to receive the sheet. As a conveying device, it is very versatile and allows the sheet to be easily received, allowing the sheet to flow smoothly by adapting to the speed of the belt.
There is no impact damage to the tip of the sheet, and a soft catch is created to ensure a secure lap.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional catch belt overlap device, Fig. 2 is a side view of a catch belt overlap device of the present invention, Fig. 3 is an explanatory diagram of a low speed conveyor belt of the present invention, and Fig. 4 is a side view of a catch belt overlap device of the present invention. An explanatory diagram showing the state of overlapping of sheets by the catch belt, and FIGS. 5 to 7 are relationship diagrams between the reference rollers and the low-speed conveyor belt. 11...Sheet, 16...Low speed conveyor belt, 17...Guide roller, 33...Driving roller,
50...Catch belt device, 52...Catch belt, 53...Eccentric roller, 54...Reference roller,
61...Eccentric device, α...Introduction angle, H...Reference interval, L...Cutting length, M...Vertex (reference position).

Claims (1)

[Claims] 1. When sheets are transferred from a high-speed conveyor belt to a low-speed conveyor belt, in overlapping and aligning the sheets, a drive roller 33, an eccentric roller 53, and a guide roller 17 of the catch belt device 50 are provided on the upper part of the low-speed conveyor belt 16. A catch belt 52 is provided and the seat 1 is attached to the bottom.
An eccentric device 61 is provided to adjust the distance H between the apex M of the reference roller 54 of the low-speed conveyor belt 16 and the catch belt 52 of the catch belt device 50 at a position vertically above the apex M in accordance with the amount of lap 1. A sheet overlapping device characterized by a structure in which the introduction angle α between the low-speed conveyor belt 16 for introducing the sheet 11 and the catch belt 52 surrounding the eccentric roller 53 can be adjusted by adjusting the eccentric roller 53.