JPH0217826Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an apparatus for cutting thick sheets of neoprene, urethane, rubber, sponge, etc. into divided sheets of predetermined thickness.

(Prior art and its problems) Conventionally, this type of apparatus, as shown in Fig. 3, passes a thick sheet s to be processed between a pair of upper and lower pinch rollers a and b, and then passes the thick sheet s to be processed after exiting the pinch rollers a and b. Generally, the structure is such that the split sheets r and r that have been split are split using cutters c placed at certain locations, and the split sheets r and r that have been split are manually pulled and guided to a predetermined location. Publication No. 51-146569). This conventional example has the following problems.

The divided sheets r and r cut by the cutter c tend to adhere to the cutter c and the cutter holder d, so the divided sheets r and r cannot be fed out smoothly, and the divided sheets r and r may be wrinkled. easier.

In order to improve the peelability between the divided sheets r and r and the cutter c and cutter holder d, a separating agent such as liquid silicone is required, which not only increases costs, but also causes damage to the product. (Divided sheet) r is soiled. Furthermore, although the product (separated sheet) r is often adhered to a laminated structure in a later process, the separation agent makes adhesion difficult.

(Purpose of the invention) The purpose of the invention is to solve the problems of the above-mentioned conventional example.

(Structure of the invention) In order to achieve the above purpose, the present invention has a cutter 1.
An air jetting part 2 is provided on at least the upper inclined surface 7 of the holder 3 that guides and supports the cutter 1. It is characterized in that it is configured such that an air film A is formed between the divided sheets r and r.

(Example) In the example shown in FIGS. 1 and 2, cutter 1
An air passage 4 is provided in the cutter holder 3 that slidably holds the cutter, and an air passage 4 is provided in an air supply device (not shown) such as a blower or compressor.
are connected via hose 6. The air outlet (air outlet) 2 of the air passage 4 is connected to the cutter holder 3
A large number of inclined surfaces 7 are provided on each of the inclined surfaces 7 located above and below the periphery of the cutter 1.

Therefore, the thick sheet s sent out by the upper and lower pinch rollers 5 is split by the cutter 1 and divided into a pair of upper and lower divided sheets r. An air film A is formed between the cutter holder 3 and the cutter holder 3 by the air ejected from the air ejection port 2.

The present invention can be configured in various ways other than those shown in the above embodiments. For example, the air jet section 2
The number, arrangement, structure, etc. of the air jetting ports are not limited to those shown in the above embodiment, and the air jetted from the air jetting section 2 forms an air film between at least the upper part of the peripheral area of the cutter 1 and the divided sheet r. Various aspects can be taken as long as A is configured to be formed. In the above embodiment, the air jetting portions 2 are formed on both the upper and lower sloped surfaces 7 of the cutter holder 3, but the air jetting portions 2 are formed only on the upper sloped surface 7.
can be provided to form an air film A below the upper divided sheet r, while the lower divided sheet r is separated from the inclined surface 7 by its own weight. Further, in the above embodiment, the thick sheet s is cut into two upper and lower divided sheets r, r by the cutter 1, and the air film A is formed on each divided sheet r, r. However, the present invention can also be used when cutting a thick sheet s into a peeling state. In this case, the peeled side divided sheet r is taken out and the other divided sheet r is circulated, but the air film A may be formed only on the former.
Furthermore, the periphery of the divided sheet r is covered with a cover, and a pressure approximately equal to the pressure of the air film A formed between the periphery of the cutter 1 and the divided sheet r is applied to the divided sheet r.
It is preferable to configure the cover so that air is also ejected from the cover toward the divided sheet r so as to act on the outer surface of the divided sheet r, since the feeding of the divided sheet r becomes even smoother. In FIG. 1, an air nozzle 10 for this purpose is shown in phantom lines.

(Effects of the invention) Since the present invention has the above configuration, it can produce the following effects.

An air film is formed between at least the upper part of the cutter periphery and the divided sheet, and the divided sheet divided on the upper side is smoothly cut and separated by the action of the air film and the guidance of the upper inclined surface, and divided into the lower side. The separated sheets are cut and separated smoothly by the guidance of the lower slope and their own weight (even better with the help of an air film), which prevents the divided sheets from adhering to the cutter periphery (cutter, cutter holder). It can be prevented. Therefore, it is possible to smoothly feed out the divided sheets, and
It is possible to solve the problem of easy wrinkles in the conventional example.

As a result of being able to omit the separation agent such as liquid silicone which was essential in the conventional example, it is possible to reduce costs and also solve the problem of product stains caused by the separation agent. Furthermore, since no separating agent is used, bonding work in subsequent steps can be carried out smoothly.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of an embodiment of the present invention, FIG. 2 is a perspective view thereof, and FIG. 3 is a longitudinal sectional side view of a conventional example. DESCRIPTION OF SYMBOLS 1...Cutter, 2...Air jet part, 3...Holder, 7...Slanted surface, A...Air film, r...Divided sheet.

Claims (1)

[Scope of utility model registration request] A splitting device characterized in that an air jetting portion is provided on at least the upper inclined surface of a holder that guides and supports the cutter, so that an air film is formed between at least the upper part of the peripheral portion of the cutter and the divided sheet. .