JPH02184406A - Taking method for extrusion molding material - Google Patents

Abstract

PURPOSE:To enable taking an extrusion molding material always corresponding to an extrusion speed to be performed by a method wherein a molding material to be extruded with an extruder is made to have an incline angle downward, a free roller is established at an incline angle less than this incline angle, and the molding material is molded by extrusion via a receiving plate provided on the free roller. CONSTITUTION:A molding material 3 is extruded on a receiving plate 5 installed on a free roller 4 from an extrusion opening of an extruder 1. In this case, when the free roller 4 is initially made horizontal and the molding material 3 is extruded, the molding material 3 is extruded on the receiving plate 5 in a downward hanging state by gravity acting on the molding material 3 regardless of an incline angle of the extruder 1. Thereafter, an incline angle of the free roller 4 is regulated using a roller 4a as a fulcrum. Then, gravity acts on the receiving plate 5 and the molding material 3 in an incline direction A of the free roller 4, the molding material 3 is inclined thereby at a specific incline angle to be taken, and the receiving plate 5 is transferred along the incline direction A on the free roller 4. Thereafter, the molding material 3 is taken by gravity acting in the incline direction A corresponding to an extrusion speed of the molding material 3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for collecting an extruded material when a hydraulic inorganic material such as cement or gypsum is extruded using an extruder.

(Prior Art) Conventionally, as a method of extrusion molding an inorganic material, a method is known in which a molded material extruded from a 'C1 extruder is extruded onto a conhair and conveyed. In this case, if the extrusion speed of the extruder fluctuates with respect to the conveyance speed of the conhair, the molded material may be stretched or compressed, making it impossible to obtain a molded material having a predetermined shape. So, as a solution to this problem, there is a method in which a speed detection roll is rotated in contact with one side of the extruded molded material, and the pulling speed of the pulling machine is synchronized with the extrusion speed of the molded material using the speed detection roll. , a method has been proposed in which the extrusion speed is detected by an auxiliary conveyor that follows the extruded molded material, the conveyance speed of the main conveyor is controlled, and the primary conveyance speed and the extrusion speed are synchronized (for example, in Japanese Patent Application Laid-Open No. (See Publication No. 56-121727).

(Problem to be solved by the invention) However, in these methods, since the detector such as a speed detection roll or auxiliary conhair is brought into contact with the molded material, the molded material adheres to the detector, making accurate detection difficult. In addition, there is a risk that a time error may occur until the extrusion speed and the conveyance speed match and the extrusion speed and conveyance speed match, resulting in negative effects on the molded product. In addition, by applying a mold release agent to the detection part of the detector,
Preventing molding material from adhering to the detector is also done, but in this case, slimp occurs, making it impossible to perform front-on detection, and when painting the molded product, residual mold release may occur. There was a fear that the agent would interfere with the adhesion of the paint and adversely affect the durability of the product.

The present invention has been made in view of the above circumstances, and by extruding the molded material extruded from the extruder onto the receiving plate provided on the free roller 2, it is possible to always take off the material in accordance with the extrusion speed. The purpose is to provide a method for collecting molded materials.

(Means for Solving the Problems) The method for taking an extruded molded material of the present invention is such that the molded material extruded by an extruder has an inclination angle downward in the extrusion direction with respect to the horizontal direction, and the inclination angle is smaller than this inclination angle. A free roller is installed in the same direction as the extrusion direction, and the molded material is extruded through a receiving plate installed on the free roller.

(Function) For example, the extruder is tilted by one degree and the molded material is extruded onto the receiving plate so that the molded material is extruded at an angle of inclination downward in the extrusion direction with respect to the horizontal direction. On the other hand, a receiving plate is installed on the free roller 1- installed in the same direction as the extrusion direction at an inclination angle smaller than the inclination angle of the extruder. Transfer materials.

Then, gravity acts on the receiving plate provided on the free roller and the molded material on the receiving plate in the direction in which the free roller is inclined.

Thereafter, the molded material is pulled off by gravity acting in an inclined direction in accordance with the extrusion speed of the molded material.

(Example) Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 schematically shows an extrusion device for use in a method for taking off extruded materials.

In the figure, 1 is an extruder for not extruding the molded material 3;
1 is a mold equipped with an extruder 11 for extruding a molded material 3 into a predetermined shape; 3 is a molded material kneaded with a hydraulic inorganic material such as cement or plaster; 4 is a free roller;
1 - A receiving plate that is capable of moving the rollers 4 and Q/main contactor 6J-; It is.

The extruder 1 has an inclination angle downward in the extrusion direction with respect to the horizontal direction. Moreover, the molded material 3 extruded from this extruder 1 is rotated at an angle of 5 to 45 degrees with respect to the horizontal direction, preferably at an angle of 10 degrees.
The inclination angle can be set so that the extrusion is performed at an inclination angle within the range of ~30'.

The inclination angle of the free roller 4 can be set within the range of 5 to 30 degrees, which is smaller than the inclination angle of the extruder, using the roller 4a as a fulcrum. The free roller 4 is also provided with a cutting machine 7 for cutting the molded material 3 at the joint of the receiving sheet 5.

This cuts the molded material 3 that is continuously extruded from the extruder 1, so that the molded material 3 is not subjected to the conveying force of the main conhair 6 during extrusion.

Therefore, from the extrusion port of extruder 1, free [Cola-4
The molded material 43 is extruded onto the receiving plate 5 provided above.

At this time, the free roller 4 is initially moved as shown in FIG.
Keep it in a horizontal state and do not extrude the molded material 3. Then, regardless of the inclination angle of the extruder 3, the molded material 3 is extruded onto the receiving plate 5 in a state where it hangs downward due to the gravity acting on the molded material 3. Then, using the roller 4a as a fulcrum, set the inclination angle of the free roller=4 to iP]. Then, gravity acts on the receiving plate 5 provided at -1- of the free roller 4 and the molded material 3 of the receiving plate 5-1- in the inclination direction A of the free roller 4, and as a result, the molded material 3 is moved to a predetermined position. The receiving plate 5 moves on the free roller 4 along the inclination direction Δ. Thereafter, the molded material 3 is pulled off by gravity acting in the direction of inclination in accordance with the extrusion speed of the molded material 3. Therefore, depending on the material of the molded material 3 and the extrusion speed, the inclination angle of the free roller 4 and the inclination angle of the extruder 1 are changed to adjust the gravity that draws the molded material 3.

(Effects of the Invention) As described above, according to the present invention, it is possible to always perform take-off corresponding to the extrusion speed, so that the stable shape of the molded material can be maintained. In addition, since the molding material and the receiving plate move on a free roller at the same speed as the extrusion speed of the molding material, the conventional detector is no longer necessary, there is no damage to the product caused by the detector, and there is no need for a mold release agent. becomes. Furthermore, since it is a free-roller type equipment and does not require a complicated mechanism, it is easy to handle and has good workability.

[Brief explanation of the drawing]

Figures 1 and 2 are schematic diagrams of an extrusion device used in the method for producing extruded materials according to the present invention, with Figure 1 being a side view showing the extrusion state, and Figure 2 at the start of extrusion. FIG.

Claims (1)

[Claims] 1) The molded material extruded by an extruder is made to have an inclination angle downward in the extrusion direction with respect to the horizontal direction, and a free roller is installed in the same direction as the extrusion direction with an inclination angle smaller than this inclination angle, and on the free roller 1. A method for collecting an extruded material, the method comprising extruding the material through a receiving plate provided in the holder.