JPH0357452Y2 - - Google Patents

Description

[Detailed description of the invention] (Prior art) Conventionally, a foam plate is created by foaming a resin liquid mixed with a foaming material in a space formed between a pair of upper and lower conveyor belts and a side conveyor interposed between them. A device for obtaining the same is known, for example, from Japanese Utility Model Publication No. 10818/1983.

(Problem to be solved by the invention) However, in this type of device, the side conveyor is gradually deformed due to internal pressure, heat, etc. generated during foaming, and this causes a gradual change in the shape of the foam board. There is a problem with this.

For example, when obtaining a construction panel with a stepped side surface as shown in Figure 7, the inner surface of the side conveyor should have the shape shown by the solid line, but this deforms as shown by the chain line in Figure 8. , it becomes impossible to obtain a product with the desired shape.

The object of the present invention is to obtain a device free of such defects.

(Problems to be Solved by the Invention) In order to achieve the above object, the present invention uses a conveyor belt consisting of a pair of upper and lower steel or other rigid bodies whose opposing surfaces move in the same direction, and a conveyor belt between the two conveyor belts. A pair of left and right side conveyors made of rubber or other elastic material are provided, which move in the same direction as these conveyor belts, with the product width interval, and the resin liquid mixed with foam material is transported in the space formed between these conveyors. A polisher is provided to polish the foam while the side conveyor is moving the foam.

(Function) When doing this, while the side conveyor is moving,
By polishing this with a polisher, it is possible to maintain a predetermined shape at all times, resulting in a product that maintains the correct shape.

(Example) An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawing, 1 and 2 are conveyor belts consisting of a pair of upper and lower steel belts or other rigid bodies whose opposing surfaces move in the same direction, and 3 and 3 indicate the width interval of the products between the two conveyor belts 1 and 2. 2 shows a pair of left and right side conveyors made of rubber or other elastic material that move in the same direction as these conveyor belts 1 and 2. A foaming space for a resin liquid mixed with a foaming material is formed in the space formed by the conveyors 1, 2, and 3. The configuration up to now is not particularly different from what is conventionally known.

In this case, the present invention is provided with a polisher 5 for polishing the side conveyors 3, 3 while they are being conveyed. 2 is provided in the foaming chamber 4 so that the upper and lower sides of both conveyor belts 1 and 2 stretched between the rolls 6 and 6 face each other and are conveyed in the same direction, and the lower conveyor belt 2 is connected to the foaming chamber. A roller conveyor 7 is provided extending in front of the conveyor belt 2, and is connected to the extended protruding portion 2a to continuously supply a base material a such as gypsum board onto the conveyor belt 2. The conveyor belt 2
facing the injection nozzle 8 provided on the extension part 2a of the
A phenol or other resin liquid containing foamed material is supplied from the injection nozzle 8 onto the base material a, and then a strip of paper b is supplied thereon from the paper feed roll 9 and conveyed by the conveyor belts 1 and 2. When being fed into the foaming chamber 4, the resin liquid is foamed on the base material a, and the foamed resin is successively sent out from the foaming chamber 4 in a continuous state in the direction of transport. Therefore, by cutting the foamed resin plate in the transport direction according to the base material a by an appropriate means, the base material a provided with the foam board can be obtained.

During the foaming process of the resin liquid, the side belts 3, 3 are deformed by the pressure caused by the foaming of the resin liquid.

However, as mentioned above, the side belts 3, 3
Since the polisher 5 is provided, deformation of the side belts 3, 3 can be corrected by this polisher. Therefore, the foam board is not deformed due to the deformation of the side belt 3.

This polisher 5 has a foaming chamber 4 as shown in FIG.
It is provided on the outside of the rear end, and to explain this in more detail, a polisher 5 is provided oppositely to the inside of the side belt 3, and the outer surface of the side belt 3 facing the polisher 5 is provided on the outside of the side belt 3. Presser roll 10, 10
are provided, and the presser rolls 10, 10 are provided with adjusting screws 11.
The cutting allowance of the belt 3 is adjusted by the adjusting screw 11.

In the drawings, reference numeral 13 indicates a pushing piece that presses the side belts 3, 3 from both outside sides thereof, and the pushing piece 13 has a sliding piece 14 made of Teflon attached to the support 15 as shown in FIGS. 3 and 4. The push piece 13 is supported by a lever 17 whose intermediate portion is pivotally supported on the machine base 16.
A hydraulic piston cylinder 18 is connected to the other end of the lever 17, and the hydraulic piston cylinder 18 applies pressure.

In this case, the side belts 3, 3 are always kept in a state in which deformation is corrected by the polisher 5, so that a foam board having a desired shape can always be formed.

Note that the dimensions of the side belts 3, 3 change when they are shaved by the polisher 5, but the distance between the side belts 3, 3 changes because they are pressed against the side surface of the base material a by the pressing piece 13 as described above. That is, the foaming space of the resin liquid mixed with the foaming material does not change.

Although the above-mentioned embodiments have been described with respect to the case where the base material a is provided, there may be cases where the base material a is not provided. In this case, the position of the side belts 3, 3 is controlled by the lever 17 as shown in chain lines in FIG. 2, and as shown in detail in FIG.
What is necessary is to provide a regulating piece 19 for regulating the position of the polishing plate 10. In this case, the regulating piece 19 may be provided with an adjusting screw 20, and the screw 20 may be adjusted automatically or manually depending on the degree of polishing.

In the illustrated embodiment, the inner surface of the side belt 3 is stepped, but it may also have a flat surface or other shape. In this case, the grinder 5a of the polisher 5 may be selected as appropriate. Just do it.

(Effect of the invention) As described above, according to the present invention, since a polisher is provided to polish the side belt while it is being fed, it is possible to constantly correct the deforming side belt, thereby giving it the desired shape. It has the effect of producing a foam board.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; FIG. 1 is a front view, FIG. 2 is a cutaway side view of a part thereof, FIG. 3 is a cross-sectional view taken along the - line, and FIG.
Figure 5 is an enlarged front view of the main parts, Figure 6 is a cross-sectional view
The figure is a side view, FIG. 7 is a cutaway side view showing an example of a deformed state of the side belt, FIG. 8 is a perspective view of an example of the product, and FIG. 9 is an enlarged side view of a part of the modified example. It is a diagram. 1, 2... Conveyor belt, 3... Side belt, 4... Foaming chamber, 5... Polisher.

Claims (1)

[Scope of utility model registration request] A conveyor belt consisting of a pair of upper and lower steel or other rigid bodies whose opposing surfaces move in the same direction;
Between both conveyor belts, there is a left and right one that moves in the same direction as these conveyor belts, with a product width interval between them.
When a pair of side conveyors made of rubber or other elastic material is provided and a resin liquid mixed with a foaming material is foamed in the space formed between these conveyors, the side conveyor is polished while it is being fed. A foam board manufacturing device equipped with a polisher.