JPH0430996A - Cutting device for tissue material - Google Patents

Abstract

PURPOSE:To cut a tissue material without distorsion and deformation and to reduce the generation of a defective good, by arranging a cutting machine having a cutting edge provided freely movably vertically with its crossing the upper part of a transfarred tissue material travelably in the transfer direction of the tissue material. CONSTITUTION:A cutting machine 18 is traveled at the same speed and in the same direction for tissue materials delivered continuously. The tissue material and the cutting machine 18 can be relatively stopped. So, the cutting machine 18 is traveled by driving a motor 37, a cutting edge is descended during this travel and the tissue material is cut without wrinkles, when the cutting machine 18 is stopped at a specific position and when a specific cutting place and the position of the cutting edge of the cutting machine 18 coincides with the tissue material being transferred.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a cutting device for thin materials such as vinyl sheets, felt, or gold i-foil. This relates to a thin sheet material cutting device that can cut materials that have an impact on the industry.

(Prior Art) Conventionally, when a thin material such as a long vinyl sheet is produced, it is wound into a roll and stored, and when necessary, it is cut into a predetermined length and used. The cutting device that shreds this thin material is
As shown in FIG. 5, there is a conveying means 1 that stretches the thin material and sends it forward, and a clamping means that is movably provided in front of the conveying means 1 and pinches the tip of the thin material S and pulls it out to a predetermined length. 2, and a cutting means 3 positioned and fixed at the front part of the conveying means 1. The conveyance means 1 is provided with rollers 4 and 5 in the front and back direction to place the thin material S, and a pinch roller 6 arranged above the front roller 5 for pinching the thin material S is rotated. It is rotatably attached to a freely provided arm 7. Further, the rollers 4 and 5 are rotatably attached by the operation of a drive belt 8.

The clamping part 9 of the clamping means 2 is movable by a chino 10, and there are knock pins 11 and 12 arranged in the front and rear directions.
The clamping action is performed by contact with the The drive belt 8 and Cheno 1O are operated by the same drive means 13,
The distance of movement is controlled by clutches (not shown) combined with gears 13a and 3b interlocked with the drive means 13. The cutting means 3 includes a plate-shaped blade 14.
is provided above the thin sheet material S in a direction perpendicular to the traveling direction of the thin sheet material S, and cuts the thin sheet material S by descending.

Therefore, the tip of the thin material S placed on the roller 5 is pinched by the pinch roller 6, and the thin material S is conveyed forward as the roller 5 rotates. At the same time, the holding part 9 moves to the delivery side of the conveying means 1. Here, when the clamping part 9 comes into contact with the knock bottle 11, it clamps the thin material S. Then, when the roller 5 is rotated and the holding part 9 is moved a predetermined distance to pull out the thin material S in front of the blade 14 and stopped at the cutting position, the blade 14 is lowered and cut into a predetermined size. Thereafter, the holding portion 9 is further moved forward to send out the thin material S and bring it into contact with the knock pin 12 at the front end, thereby releasing the holding of the thin material S. In this way, by pulling out a predetermined distance and cutting it, a thin sheet material S of a desired length can be obtained (see Japanese Utility Model Application No. 165450/1983).

By the way, the thin material S has a wide variety of uses, such as the above-mentioned vinyl sheets, metal foils, felt, etc., and the demand for it is increasing.Therefore, when the thin material S is formed into a sheet shape, it is cut.
It has been proposed to increase productivity by omitting the roll-forming step.

(Problem to be Solved by the Invention) However, when the above-mentioned thin sheet cutting device is attached to an injection machine for continuous molding and is installed so as to continuously cut into a predetermined size, the thin sheet material cannot be pulled out by the clamping part 9. However, since the thin material S is continuously fed out, the cutting edges become irregular, and since the thin material S is pushed forward during cutting, the thin material S is cut between the blade 14 and the roller 5 as shown in Fig. 6.
A deflection deformation a occurs between the rollers 5 and before the roller 5. Then, even if the blade 14 rises in the next cycle, it is still sent forward, so that the cut sheets may have wrinkles or irregular dimensions. For this reason, if the thin sheet material S is cut while it is being conveyed, many defective products will be produced, making it difficult to use the above-mentioned cutting device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a thin material cutting device that does not cause deformation or other effects on the thin material even if the thin material is cut while being transported.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a cutting machine that is movable up and down along the conveyance line of the thin sheets and across the upper part of the thin sheets being conveyed. The present invention is characterized in that the cutting machine is disposed so as to be movable in the conveyance direction of the thin sheet material.

(Operation) With the above configuration, it is continuously sent out (
By running the cutting machine in the same direction and at the same speed with respect to the thin material, it is possible to create a state in which the thin material and the cutting machine are stopped relative to each other. Therefore, the cutting machine is stopped at a predetermined position, and when the thin material is transported and the position of the cutting blade of the cutting machine coincides with the predetermined cutting location, the cutting machine is moved together, and during this movement, the cutting blade is When lowered, thin materials can be cut without creating wrinkles.

(Example) Next, embodiments of the present invention will be described based on the accompanying drawings.

As shown in FIGS. 1 to 3, a thin material cutting device 15
Roughly speaking, a box-shaped base 16, a conveyance holding means 17 provided on the thin material entry side of this base 16 (left side in FIG. 1),
Cutting machine 1 provided on the thin material delivery side of the conveying and holding means 17
It consists of 8. The transport holding means 17 is arranged in the transport direction (
It has rollers 19.20 disposed perpendicular to arrow b) and pinch rollers 21.22 disposed above each roller 19.20 so as to be able to come into contact with it, and the lower rollers 19.20.
20 is configured to place the thin sheet material S that is being conveyed and keep it in a substantially horizontal state, and the upper pinch rollers 21 and 22 are configured to hold down this thin sheet material S and pinch it therebetween. Further, the surface of the pinch roller 21 is processed so as to make suitable contact with the thin sheet material S. A pulley 23 connected to a drive motor (path shown) is arranged below the lower roller 19.20, and this pulley 23 is connected to the roller 19.20 via a belt 24.

The base 16 serves as the thin material delivery side of the conveying and holding means 17 mentioned above.
A rack 25 with its tooth surface facing upward is attached along the conveyance direction on the inner side of the surface, and a rail 26 is attached above the rack 25 along the rack 25.

On the other hand, as shown in FIG. 3, the cutting machine 18 is equipped with a support member 28 to which a receiving blade 27 is fixed facing upward. The support member 28 is provided movably in the conveying direction by engaging the left and right rails 26 with respective grooves 28a provided on both edges thereof. A pair of air cylinders (or oil cylinders may be used) 30 are attached to the lower sides of the support member 28 via brackets 29, and the rods 31 of the air cylinders 30 extend upward through the support member 28 to provide support. Movable member 32 disposed opposite member 28
is connected to. The movable member 32 has a cutting blade 3 whose cutting edge is directed downward and is inclined in a direction that crosses the conveyance line.
3 is installed. A spring box 34 is attached to the upper part of the movable member 32, and a spring inside the spring box 34 urges downwardly a holding plate (path shown) that fixes the cut portion of the thin material S, which is arranged in parallel with the cutting blade 33. Further, bearings 35 are attached to the lower portions of both sides of the support member 28 to support a rotating shaft 36, and a motor 3 is attached to this rotating shaft 36.
7. A clutch 38 is connected. Gears 39 are provided at both ends of the rotating shaft 36 and mesh with the rack 25.

A gear 40 is further rotatably connected to the bearing 35 and meshed with the rack 25.

In addition, a belt conveyor 41 is installed in front of the cutting machine 18 at approximately the same height, and the cut thin material S is conveyed as it is to the next process. 42 is a drive motor for the belt conveyor 41.

Next, the action will be explained.

When the thin sheet material S being conveyed is placed on the rollers 19 and 20 and held between the upper rollers 22 and pinch rollers 21, the flat surface is maintained and the sheet material S can be conveyed stably. One of the upper rollers 22 can be omitted.The conveyance speed can be matched to the speed of the thin material S entering, and the moving speed of the cutting machine 18 can also be matched. The cutting machine 18 is in a standby state at a position closer to the entry side (original position), and when a predetermined cutting location of the thin material S becomes in phase with the position of the cutting blade 33, the cutting machine 18 starts moving.The cutting machine 18 starts moving. This may be done using a signal that detects a predetermined dimension of the thin material S to be cut.Since the cutting machine 18 moves at the same speed, the incoming thin material S is in a relatively stopped state, When the thin sheet material S is cut by operating the air cylinder 30 and lowering the cutting blade 33 during movement, no force in the moving direction due to conveyance is applied to the thin sheet material S, so that the thin sheet material S can be continuously conveyed without the risk of deformation. (The thin material S can be cut without stopping its conveyance. Also, after cutting, the cutting blade 33 is raised and returned to the original position so that the predetermined cutting point of the thin material S is aligned with the cutting blade 33. It waits until it reaches the same position.The return speed at this time was set to three times the forward speed in the example.

Furthermore, another embodiment will be described with reference to FIG. The difference from the above embodiment is that the movable member 32 of the cutting machine 18
The reason is that a cutting blade 33a having a concave shape in the center is attached to the cutting blade 33a. This allows the thin material S to be cut from both sides, which is convenient for cutting easily deformable fabrics such as felt.

(Effects of the Invention) Since the present invention is configured as described above, the thin material being transported and the cutting machine that is running are in a relative standstill state, and during this time, even if the cutting blade is lowered, Since the movement of the thin sheet material is not obstructed, the thin sheet material can be cut without being distorted or deformed, which has the effect of reducing the occurrence of defective products and improving production efficiency.

[Brief explanation of the drawing]

1 is a side view of a thin material cutting device according to an embodiment of the present invention, FIG. 2 is a plan view of a thin material cutting device of an embodiment, FIG. 3 is a front view of a thin material cutting device of an embodiment, and FIG. 5 is a side view of a conventional thin material cutting device, and FIG. 6 is an enlarged view of a conveying portion of the conventional thin material cutting device. 18... Cutting machine 25... Rack 33, 33a... Cutting blade 37... Motor 39... Gear S... Thin material (and 2 other people) Figure 4 Procedures correction 1 March 12, 1991 Patent Application No. 132257 of 1990 2 Name of the invention Thin material cutting device 3 Relationship with the case of the person making the amendment Patent applicant name Ishikawa Koki Co., Ltd. 4 Address of the agent 6 Ochanomizu Square Building B, Kanda Surugadai 1, Chiyoda-ku, Tokyo (and 1 other person) Column 7 of the detailed explanation of the invention in the specification, Contents of the amendment (1) In the specification, page 7, line 11, "Ru. Movable. Member 32”
There is a certain thing. Note that a stepping motor may be used instead of the air cylinder 30 and operated by rotation of gears. "Movable member 32". (2) On page 9, line 19 of the specification, insert the following sentence next to "convenient." ``Also, two motors with clutches are installed as motors for rotating the rotating shaft 36, and the forward and backward movement is shared between them, and each is equipped with a gear with a reduction ratio of 1/2, for example, 115, so that the outward trip is delayed and the return trip is delayed. You may also try to make it advance faster.”

Claims (1)

[Claims] (1) A cutting machine having a cutting blade that is vertically movable across the top of the thin material being transported along the thin material transport line is arranged so as to be movable in the direction of transport of the thin material. A thin material cutting device featuring: