JPS6121210Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention can be applied to inorganic materials such as cement or gypsum.
This invention relates to a device for taking off a molded plate manufactured by an extruder and mixed with various additives and water as necessary.

Mix various additives such as asbestos, bulbs, fibrous materials such as alkali-resistant glass fibers, lightweight aggregates such as Shirasu balloons and perlite, and plasticizers with inorganic substances such as cement or gypsum, and add the required amount of water. When obtaining a molded plate with a predetermined shape and dimensions using an extruder, as shown in FIGS. Picking belt conveyor 3
a or a roller conveyor 3b, cut by a rotary cutter 6, and then transferred to a receiving stand 5.

However, as shown in FIG. 3, the plate 7 formed by extrusion accumulates uneven residual stress when extruded from the die 2, and is bent and warped on the conveyor 3 of the take-off device. It is difficult to make a good molded product, especially when fitting parts are formed on both sides of the molded plate.
The above-mentioned warping often results in poor fitting, and for this reason, the shape and dimensions of the molded plate may be adjusted in post-processing after curing. Such post-processing requires equipment, manpower, and time, which is very undesirable.

The present invention solves the above-mentioned drawbacks, and its purpose is to continuously produce a molded plate with fitting parts on both sides without bending or warping when manufactured using an extruder. The present invention provides an apparatus for taking up an extrusion-molded plate.

That is, in the present invention, immediately after the die installed at the tip of the extrusion molding machine, the extrusion molded plates are placed on both sides of the conveyor that successively takes over the extrusion molded plates having the same cross-section as the opening shape of the die. A guide belt provided with a concave groove or a convex groove that fits into the fitting part of the side wall in the direction of movement of the body is installed so as to hold the molded plate body and rotate in synchronization with the traveling speed of the plate body. This is a characteristic feature of a press-molded plate take-off device.

By using this pulling device, the die 2
Since it is possible to correct the bending and take off the formed plate immediately afterward, it is possible to continuously obtain formed plates without bending, and there is no need for post-processing finishing, and the shape and size can be easily corrected. A good molded plate with high precision can be obtained.

In the present invention, the guide belts fitted on both side walls of the extrusion molded plate body and rotating in synchronization with the advancing speed of the molded plate body are rotated in synchronization with the extrusion speed of the extrusion molded plate body 7 discharged from the die 2. Even if it is forcibly driven, or if it has a structure that can fit with the take-up belt conveyor or roller conveyor to be used and is rotated by the driving force of the take-up belt conveyor or roller conveyor, or Even if the guide belt has a fitting structure and both are forcibly driven, the effect of correcting the bending is great in both cases, but in particular, a structure in which the guide belt and the take-up belt conveyor can be formed. Therefore, it is most preferable to forcibly drive both of them in synchronization with the extrusion speed of the extrusion-molded plate, and the softer the extrusion-molded plate, the greater the effect.

The present invention will be explained below using figures.

FIG. 4 is a plan view showing an overview of extrusion molding using the pulling device of the present invention, and FIGS. 5 and 6 are cross-sectional views taken along line a-b in FIG. 4. die 2
The raw extruded plate 7 discharged from the conveyor 3, such as a belt conveyor or a roller conveyor, is held by guide belts 4 installed on both sides of the conveyor 3, where it is corrected for bending and warping. The cutter 6 then moves to a fixed length by the next rotary cutter 6, and then is transferred to the receiving table 5.

In FIG. 5, a forced drive type belt conveyor 3a' is used as an example of the take-up conveyor 3 in FIG. It moves in the extrusion direction. The continuously variable speed motor 8 and 8a which are the driving sources are the extruded plate body 7.
The discharge speed of the extrusion molded plate 7a is detected and the take-up belt conveyor 3a' and the guide belt 4a are rotated at the same speed as the extrusion molded plate 7a, and the extruded molded plate 7a is transported in the extrusion direction in a straightened state. At this time,
A contact portion between the guide belt 4a and the extruded plate body 7a,
That is, the side walls of the extruded plate 7a normally form a fitting part during construction, and the shape and dimensional accuracy are important, so the cross-sectional shape of the guide belt 4a is determined by the area in contact with the side walls of the extruded plate 7a. A shape that increases .

In addition, in FIG. 5, the fitting portion of the side wall in the traveling direction of the extrusion-molded plate 7a is formed into a concave groove, and the guide belt 4a is formed into a convex groove on both sides, and is fitted so as to sandwich the plate-like body 7a. This shows the state in which the

In FIG. 6, a free roller conveyor 3b is used as the take-up conveyor 3, a guide belt 4b is forcibly driven using a continuously variable speed motor as a drive source for the guide belt 4, and an extruded plate body 7b is used. , the extruded plate body 7b is transported while being corrected. At this time, as in FIG. 5, the rotational speed of the guide belt 4b is synchronized by detecting the discharge speed of the extruded plate 7b.
can be transferred in the extrusion direction while correcting b.

In addition, Figure 6 shows the state in which the fitting portion of the side wall in the traveling direction of the extruded plate body 7b is molded into a concave groove on the left side and a convex groove on the right side, and the guide belt 4b is formed into a convex groove on the left side and a concave groove on the right side, and is fitted so as to clamp the plate body 7b.

Since the present invention has the above-described structure, the extruded normally formed plate discharged from the die can be transferred to the receiving stand while being corrected, and the shape and dimensional accuracy can be kept high, especially when the extruded plate is used during construction. It is possible to improve the fitting of the parts, and it is possible to create a product with high added value. Furthermore, there is no need for post-processing and finishing, making it extremely efficient and reducing manufacturing costs.

[Brief explanation of the drawing]

FIGS. 1 and 2 are front views of a conventional extrusion-molded plate taking-off device using a belt conveyor and a roller conveyor, respectively, and FIG. It is a top view which shows the state of bending of a birth molded plate body. Fig. 4 is a plan view of the extrusion molded plate take-up device of the present invention; Fig. 5;
and FIG. 6 are cross-sectional views of the take-off device when a belt conveyor and a roller conveyor are used as the take-off conveyor, respectively. 1...Extruder, 2...Die, 3, 3a, 3a'3
b... Take-up conveyor, 4, 4a, 4b... Guide belt, 5... Take-up stand, 6... Rotating cutter, 7... Extrusion molded plate, 8... Continuously variable speed motor.

Claims (1)

[Scope of utility model registration request] Immediately after the die installed at the tip of the extrusion molding machine,
Concave grooves or convex grooves are provided on both sides of the conveyor that successively takes up extrusion molded plates having a cross section with the same shape as the opening shape of the die, to fit into the fitting portions of the side walls in the advancing direction of the molded plates. 1. A device for taking up an extrusion molded plate body, characterized in that a guide belt is installed to hold the molded plate body and rotate in synchronization with the advancing speed of the plate body.