JPH0723206Y2 - Mold - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a molding die used for manufacturing a hard wood chip cement board or the like.

[Prior Art] As disclosed in Japanese Examined Patent Publication No. Sho 63-35401, a hard wood cement plate is prepared by mixing cement, wood flakes, water, etc. on a mold having an uneven pattern on its upper surface. Then, the mat-shaped raw material is placed, and the mat-shaped raw material is pressure-molded and held for a predetermined period of time. In the case of continuously producing this hard wood chip cement board, generally, the molding die on which the raw materials are placed is sent to the press device by the conveyor, and even after pressure molding, the hard wood piece cement plate is placed on the molding die conveyor. It is flowing to the post-process line by. The post-process is, for example, cutting into a predetermined shape, giving a predetermined marking, or trimming an edge portion.

Due to the difference in the post-process such as the difference in the cutting shape, the hard wood cement plate is distributed to the corresponding processing line, and the distribution information is expressed by the holes provided in the molding die. That is, a non-molding part that is not related to pressure molding of a hard wood cement plate is provided in a part of the molding die,
A hole that specifies the desired cut shape, mark, etc. is formed in this non-molded part, this hole is detected by an optical image processing device installed on the processing line, and based on the information expressed by the hole The sorting device is operated and the molding die and hard wood chip cement board are sent to the corresponding processing line.

[Problems to be solved by the invention] By the way, the above-mentioned forming die is generally made of iron, and the holes provided in the non-forming part are formed by drilling. However, the inner surface of the hole formed by the drill is relatively skin-like. Is rough and rough. Therefore, the raw material of the hard wood cement board was easily attached to the holes. To make matters worse, once the raw materials adhere, they cannot be easily removed, and the remaining raw materials solidify over time.

Although the mold was reused many times, the raw material adhered and solidified during repeated use, and the raw material further adhered to the raw material, eventually closing the holes. If this hole is blocked, there is a problem that the information is not accurately read by the image processing apparatus and, as a result, a defective product is produced without performing a desired post-process.

The present invention has been made in view of the problems of the above-mentioned conventional techniques, and an object of the present invention is to provide a molding die capable of accurately transmitting information.

[Means for Solving the Problems] This invention has been made in order to achieve the above object.
The gist of the invention is to have a molding part and a non-molding part connected to this molding part, and the non-molding part is provided with holes for image processing of various information. The molding die is characterized in that the diameter gradually decreases as it goes to, and that a cylindrical body having a smooth inner surface is removably fitted into this hole.

[Operation] Since the inner surface of the tubular body fitted in the hole of the molding die is smooth, it is difficult for the raw material such as the hard wood cement plate to adhere to the tubular body, and even if it adheres, it can be easily removed. Therefore, the inside of the cylindrical body is extremely unlikely to be blocked, and the information can be accurately read by the image processing apparatus.

Further, since the inner surface of the hole is tapered, the resistance is extremely small and the tube can be smoothly inserted even if the outer diameter of the tube is larger. In the unlikely event that the tubular body is blocked, the tubular body can be replaced, and the life of the molding die can be extended.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings from FIG. 1 to FIG.

FIG. 1 is an external perspective view of the molding die 1, which is used for manufacturing a hard wood chip cement board.

The molding die 1 is made of iron, and has a molding part 2 having a large number of rectangular recesses 2a in a plan view, a non-molding part 3 having a substantially T-shape in a plan view protruding laterally from the molding part 2, and the non-molding part 3 And a connecting portion 4 protruding from the molding portion 2 in the opposite direction.

The molding part 2 is a part for pressure-molding the raw material of the hard wood chip cement plate placed thereon.

The non-molding portion 3 is a portion that is not directly involved in pressure molding, and even when the raw material is placed on the molding portion 2, the raw material is not placed on the non-molding portion 3 and is exposed. Non-molded part 3
In the same manner as in the conventional art, a plurality of holes 5 for image processing for specifying the specifications of the post-process are provided in. The holes 5 are formed by drilling from both the front and back sides, and as shown in FIG. 2, the diameter is gradually reduced from both the front and back surfaces of the non-molded portion 3 in the thickness direction, and the minimum diameter at the center is about 12.3mm ~ approx.
It is 12.5 mm. Further, a tube (cylindrical body) 6 made of fluororesin is fitted into each hole 5. The tube 6 has an outer diameter of about 13 mm and an inner diameter of about 11 mm. The tube 6 is inserted by pushing it into the hole 5 as shown in FIG. 3. However, since the inner surface of the tube 5 is tapered as described above, even if the outer diameter of the tube 6 is larger,
There is very little resistance and it can be inserted smoothly.

Since the inner surface of the tube 6 made of fluororesin is extremely smooth, the raw material of the hard wood cement plate is extremely unlikely to adhere, and even if it adheres, it can be easily removed by blowing pressurized air or the like. Therefore, the tube 6 is almost never blocked, and the information can be accurately read by the image processing apparatus. As a result, the hard wood chip cement plate after pressure molding can be flowed to a desired post-processing line, and production of defective products can be prevented in advance.

If the tube 6 is blocked by any chance,
Only the tube 6 needs to be replaced, and the molding die 1 itself can be used thereafter and the life of the molding die 1 can be extended. When replacing the tube 6, if the old tube 6 fitted in the hole 5 is drilled using a drill having an outer diameter of 12 mm, the old tube 6 can be removed without damaging the hole 5. it can.

The connecting portion 4 is used when the forming dies 1 are sequentially connected, and the connecting portion 4 is connected by fitting the non-forming portion 3 of another forming die 1 inside the connecting portion 4.

This invention is not limited to the above-mentioned embodiment, and various modes can be adopted.

For example, the material of the tubular body is not limited to the one made of fluororesin, and may be made of another resin or may be made of metal as long as the smoothness of the inner surface is ensured. Further, the purpose of use of the molding die is not limited to the production of hard wood cement plate, and it may be a simple production of cement plate or other molded products.

[Effects of the Invention] As described above, according to the present invention, a cylindrical body having a smooth inner surface to which a raw material such as a hard wood cement plate is unlikely to adhere is attached to an image processing hole provided in a molding die. Therefore, the situation in which the hole is clogged with the raw material hardly occurs, the information can be accurately read by the image processing apparatus, and the excellent effect that the defective product is not produced is exhibited. It

Further, since the above-mentioned tubular body is detachably attached to the hole, even if the tubular body is clogged with the raw material, the molding die can be used even after that if the tubular body is replaced. This also has the effect of extending the life of the molding die.

[Brief description of drawings]

The drawings from FIG. 1 to FIG. 3 show an embodiment of the present invention. FIG. 1 shows an external perspective view of a molding die, and FIG. 2 shows a state in which a tubular body is fitted in a hole. FIG. 3 is an enlarged cross-sectional view showing the same, and FIG. 1 ... Mold, 2 ... Molded part, 3 ... Non-molded part, 5 ...
Hole, 6 ... Tube (cylindrical body).

Claims (1)

[Scope of utility model registration request] 1. A non-molding section having a molding section and a non-molding section connected to the molding section, wherein the non-molding section is provided with a hole for image-processing various kinds of information. A molding die characterized in that the diameter gradually decreases as it progresses in the direction, and a cylindrical body with a smooth inner surface is removably fitted into this hole.