JPH0195762A - Production of plate material and apparatus therefor - Google Patents

Abstract

PURPOSE:To produce a plate material having selectable draw ratios in lateral and longitudinal directions, by pressing a plastic material from axially symmetric positions into a nearly circular disk gap composed of a concave tool and a convex tool, forming the plastic material from a radially extending flow into a tubular material and cutting the product in axial direction. CONSTITUTION:A nearly circular disk gap 3 is composed of a concave tool 1 and a convex tool 2. A plastic material is pressed into the gap 3 from the axially symmetric position of at least one of the above tools. The plastic material forms a radially extending flow in the nearly circular disk gap 3 and the flow is converted into the flow in axial direction with the concave tool 1 to form a tubular material 4. The tubular material 4 is continuously cut in axial direction with a cutter 6 to obtain a plate material 6. Accordingly, the drawing ratios in lateral and longitudinal directions can be freely selected and the anisotropy of the plate material can be eliminated or adjusted to an arbitrary level.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a plate whose main component is a material that can be plastically processed by extrusion molding, injection molding, rolling, etc., such as food products, polymeric materials, and metals. The present invention relates to a method for manufacturing a shaped body and an apparatus therefor.

(Prior art) In the conventional manufacturing method of a plate-shaped body, the plate-shaped body is formed from the first step by casting, rolling, or extrusion, and the properties of the side edges and the central part of the plate-shaped body are different. It was normal. In addition, when two types of materials are layered together to form a composite material,
The method used was to manufacture plate-shaped bodies using each material, and then stack them and roll them together, or to pour another material onto one plate-shaped body and solidify it. These manufacturing methods involve complicated steps, and also produce so-called anisotropy, in which the properties of the material in the width direction and length direction are significantly different.

(Objective of the Invention) The first object of the present invention is to provide a continuous manufacturing method of a plate-like body in which the elongation ratio in the width direction and the length direction can be selected. A second object of the present invention is to provide a method for continuously manufacturing a composite plate-like body using a set of a cap-like tool and a convex-like tool. Furthermore, a third object of the present invention is to provide an apparatus for continuously manufacturing plate-shaped bodies.

(Operation of Means 9 for Solving Problems) To explain the present invention in detail, FIGS. 1 and 2 are explanatory views of the state of implementation of the present invention, and in FIG. A plastic material is press-fitted into the approximately disc-shaped gap 3 formed by the two tools 1 and 2 from an axially symmetrical position of at least one of the tools. A spreading flow is applied, which is then converted into an axial flow by a planar tool 1 to form a tubular body 4, and this tubular body is continuously cut in the axial direction by a cutting device 5 to form a plate-shaped body. 0 If the plastic material is pressed in from only one tool, it will of course be a single material, but 9 Different materials will be pressed in from the tools on both sides.The deviation will be 2N and a composite material will be obtained.1 From the tools on both sides When press-fitting into a roughly disc-shaped gap between different materials, it is preferable that the press-fitting lowers 8 are concentrically shifted from each other to achieve the effect of keeping the thickness of each layer of the composite material uniform. By expanding the plastic material radially in the gap, a large strain is applied to the tubular body 4 in this process in its circumferential direction, that is, in the width direction when it is later formed into a plate-like body 6. The plastic material is then transformed into a tubular body 4 by changing its flow in the direction of the tube axis using a planar tool. At this time, if the gap B in the radial direction is made larger than the gap A between the two tools so that the inner diameter of the tubular body 4 is larger than the outer diameter of the flat tool 2, the extrusion force of the plastic material can be reduced. Tube defects such as horizontal wrinkles can be improved. Subsequently, the plastic material progressing into a tubular body is continuously cut in the tube axis direction by a cutting device 5 to form a plate-shaped body 6. Therefore, the horn-shaped tool 2 can be fixed to the outside of the tubular body through this cut.

As shown in FIG. 2, the present invention press-fits a plastic material into a substantially disc-shaped gap 3 formed by a cap-like tool 1 and a cap-like tool 2 from an axially symmetrical position of at least one of the tools. , giving this plastic material a flow that spreads radially within the approximately disk-shaped gap 3.

Subsequently, the flow is converted into an axial flow using the planar tool 1 to form a tubular body 4, and preferably, pressurized air, pressurized water, or the like is jetted from the nozzle 9 to apply fluid pressure to the inner surface of the tubular body 4. In this method, the tubular body 4 is continuously cut in the axial direction by a cutting device 5 to obtain a plate-shaped body. In this case, to efficiently expand the diameter of the tubular body.

As shown in Fig. 2, it is better to use the gravity acting on the tubular body 4 as a vertical type and to gradually increase the diameter of the tool on the exit side in a bell shape. Bell-shaped part 1
It is desirable to facilitate the expansion of the pipe diameter by heating the pipe to an appropriate temperature or by appropriately increasing the temperature of the injected fluid.
Note that the pressurized fluid creates a gap between the inner surface of the tubular body 4 and the bell-shaped portion 10 and flows out to the outside, but at this time, the tubular body is moved forward.

Furthermore, the present invention press-fits a plastic material into the approximately disc-shaped gap 3 formed by the cylindrical tool 1 and the cylindrical surface tool 2 from an axially symmetrical position of at least one of the tools. A flow that spreads radially within the disc-shaped gap 3 is then converted into an axial flow using the disk-shaped tool 1 to form a tubular body 4, and this tubular body 4 is continuously cut in the axial direction by the cutting device 5. It is cut into a plate-like body 6, and preferably continuously formed by a roll device 11.

This is a method of manufacturing a plate-shaped body by cutting or rolling.

When a plate-shaped body is rolled by the roll device 11, the plate-shaped body almost stretches in the length direction and does not spread in the width direction. By combining the properties with the elongation in the length direction, it is possible to select whether the properties of the plate-like body are equal in the width direction and the length direction, or they are made to have an appropriate amount. Since the plate-like body is obtained by cutting the body in the axial direction, the properties of the edges and the center of the plate are uniform, and it is clear that the edges are not wasted.

Further, as shown in FIGS. 1 and 2, the present invention includes an extrusion device 12 for forming a plastic material into a tubular body 4 from between a cap-shaped tool 1 and a protrusion-shaped tool 2, and a tubular body that continues to advance. a cutting device 5 that continuously cuts the body 4 in the axial direction to form a plate-shaped body;
This is a plate-shaped body manufacturing apparatus comprising a roll device 11 that continuously performs shaping, cutting, or rolling by applying pressure to the plate surface of the plate-shaped body by a set of rolls. With such an apparatus, it is possible to manufacture a plate-shaped body having an appropriate value of anisotropy as described above. To such an apparatus, as shown in FIG. 2, a heat treatment apparatus can be added which successively performs so-called heat treatment such as drying, paking or thermal refining.

Example 1 Plastic material 1 was prepared by adding 0.2z of salt, 3χ of sugar, and an appropriate amount of water to wheat flour, and kneading the mixture with air mixed in with a kneading machine.
Plastic material 2 is made by adding 0.2χ salt, 3χ sugar, 15χ eggs, and an appropriate amount of water to wheat flour and kneading it with air in a kneading machine.The heat treatment equipment is on a separate line as shown in Figure 2. Extrude the plastic material 1 on the inside and the plastic material 2 on the outside into a tubular body with a diameter of 60 mm and a thickness of 5 mm at room temperature using a device.
The diameter was expanded to 0 mm and thickness to 0.38 mm. Next, it is cut vertically by a cutting device, and then it is cut into pieces with a thickness of 0.2 by a roll device.
It was rolled to a width of 275mm and cut to a width of 5om and a length of 50mm. After that, the plate-shaped cracker-shaped food product thus produced by the method of the present invention was baked in an oven, and then extruded into a plate-shaped food product by the conventional manufacturing method, that is, 0.4 mm thick and 250 mm wide, and then rolled using a roll device. For cracker-like foods produced by rolling the product to a thickness of 0.2 mm and a width of 270 mm, cutting it into 50 mm width and 50 mm length pieces, and baking them in an oven.
The anisotropy against cracking is small, the strength can be improved while maintaining good texture, and the ratio of the thicknesses of plastic materials 1 and 2 can be made uniform.4 In the food produced by the method of the present invention, the shape of the bubbles is in the width direction. The bubbles are almost the same in the length direction and are less likely to break during handling, whereas in the conventional method, the air bubbles stretch significantly only in the length direction, which easily causes cracks in the length direction and causes defective products. It had become.

Example 2: Plastic material 1 made by adding an appropriate amount of water to wheat flour and kneading it with a kneading machine, and Plastic material 2 made by adding an equal amount of buckwheat flour and an appropriate amount of water to wheat flour and kneading it with a kneading machine. The heat treatment equipment is a separate line, which is the equipment shown in Figure 2.
inside, plastic material 2 outside, diameter 60cm, thickness 5m
Extruded into a tubular body of m.

The diameter was expanded to 80 mm in diameter and 1.2 mm in thickness using compressed air with a gauge pressure of 0.2 kg/mm2. Next, it is cut vertically using a cutting device, and then cut into pieces with a thickness of 1.2 mm using a roll device.
It was sheared to 1.2mm+width. It was then dried in the shade.

Composites could thus be produced by the method of the invention.

Example 3: Uncolored polyethylene and two-colored polyethylene were heat-treated using the equipment shown in Fig. 2, which is a separate line.
Heat to ℃ and make the former inside and the latter outside with a diameter of 601 mm.
．． Extruded into a tubular body with a thickness of 5 mm, gauge pressure of 5 kg/m
The bell-shaped portion was heated to 220° C. using 220° C. compressed air of 220° C. to enlarge the diameter to 80 mm in diameter + 0.38 mm in thickness. Subsequently, it was cut vertically using a cutting device, and then rolled to a thickness of 0.3 mm and a width of 27 On+m using a roll device.

-10- The two types of materials were completely joined. The tensile strength of this material in the width direction is 2.8 kg/m+n2. The elongation is 55χ, and the tensile strength in the width direction of the same material extruded to the same size using only an extruder is 1.6 kg/mm2. The elongation is 45%.

The method of the present invention is superior.

(Effect of the invention) According to the present invention, the elongation ratio in the width direction and the length direction can be selected.
Therefore, it is possible to eliminate the anisotropy of the plate material or to select an appropriate value. Moreover, composite plate-like materials can be manufactured continuously. Furthermore, the apparatus of the present invention can provide an apparatus that specifically implements the above method.

(Field of application of the invention) The method of the present invention opens a new way as a processing method for plastically workable materials such as foodstuffs, daily necessities, and industrial products, and it is possible to provide manufacturing equipment to realize it. 8 The method of the present invention can be applied not only to food products, plastics, and metal materials, but also to any material that has plastic workability to the extent that it can be press-molded or injection-molded. The number of types can be expanded all at once. Note that the method of the present invention is not limited to plate-shaped materials.

After the tubular body is formed into a plate-like body, it can be formed or cut into any shape.

[Brief explanation of the drawing]

Figures 1 and 2 are conceptual diagrams explaining the process and equipment of the present invention. Figure 1 shows an example in which the extrusion device of the present invention is a horizontal type, and Figure 2 shows an example in which the extrusion device of the present invention is a vertical type. This is the equipment column for the case. 1: A planar tool, 2: A planar tool, 3: A substantially disc-shaped gap, 4: A tubular body, 5: A cutting device, 6: A plate-like body.

Claims (4)

[Claims] (1) A plastic material is press-fitted from an axially symmetrical position of at least one of the tools toward the approximately disc-shaped gap formed by the cap-shaped tool and the convex-shaped tool, and the plastic material is inserted into the approximately disc-shaped gap. A plate in which a flow is applied that spreads radially at the tip, which is then converted into an axial flow using a surface-shaped tool to form a tubular body, and this tubular body is continuously cut in the axial direction by a cutting device to form a plate-shaped body. Method of manufacturing a shaped body. (2) A plastic material is press-fitted toward the approximately disc-shaped gap formed by the cap-shaped tool and the convex-shaped tool from an axially symmetrical position of at least one of the tools, and the plastic material is inserted into the approximately disc-shaped gap within the approximately disc-shaped gap. A flow that spreads radially is applied to the pipe, which is then converted into an axial flow using a surface tool to form a tubular body.Fluid pressure is then applied to the inner surface of this tubular body to expand the pipe diameter. A method for manufacturing a plate-shaped body in which a tubular body is continuously cut in the axial direction using a cutting device. (3) A plastic material is press-fitted into the approximately disc-shaped gap formed by the cap-shaped tool and the convex-shaped tool from an axially symmetrical position of at least one of the tools, and the plastic material is inserted into the approximately disc-shaped gap within the approximately disc-shaped gap. giving a flow that spreads radially at the step, then converting it into an axial flow using a planar tool to form a tubular body, and continuously cutting this tubular body in the axial direction using a cutting device to form a plate-shaped body; 3. The method for manufacturing a plate-shaped body according to claim 1 or 2, wherein the plate-shaped body is continuously formed, cut, or rolled using a roll device. (4) An extrusion device that forms a plastic material into a tubular body from between the surface-shaped tools and a plate-shaped body by continuously cutting the advancing tubular body in the axial direction. A device for manufacturing a plate-shaped body, which is comprised of a cutting device that continuously shapes, cuts, or rolls the plate-shaped body by applying pressure to the plate surface of the plate-shaped body using a set of rolls.