A co-extrusion molding die

Abstract

The utility model discloses a co-extrusion molding die, comprising a main body, an extrusion cavity is formed inside the main body, and the cavity at least penetrates to the outside of one end of the main body; an injection port is opened in the middle of the main body and communicated with the cavity inside the main body; and also comprises a heating component, which is composed of a heating element and a connecting element, wherein the heating element is inserted into the interior of the main body and is arranged around the injection port as a whole; the connecting element is installed at the end of the heating element, the connecting element is inside the main body, and is on the same plane as the front surface of the main body; the designed heating component can heat the solidified material to a viscous or completely melted state, and can be used directly without cleaning when the extrusion material is not replaced. Even if the extrusion material needs to be replaced, it is more convenient to clean and saves cleaning time, improves the shortcomings of the existing structure in use, and the heating component will not affect the normal connection and injection of the injection port.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a co-extrusion molding mold. Background Art

[0002] Co-extrusion die is a die mainly used in extrusion process. It can extrude two or more materials at the same time and mix them evenly to make various composite products. The main function of this die is to achieve the mixing of different materials to achieve specific physical and chemical performance requirements. Co-extrusion die can produce a large number of high-quality products in a very short time, so it is widely used in plastics, rubber, metal and other fields.

[0003] After the existing co-extrusion molding die is completed, a certain amount of processed raw materials will remain at the injection port position. Once the work is stopped for a long time, the residual material will solidify due to the decrease in temperature. However, in order to carry out normal injection molding and extrusion processing later, the raw materials in the injection port need to be cleaned. However, this cleaning operation is relatively cumbersome and will consume a lot of time, so there are great limitations in actual use. Utility Model Content

[0004] The utility model aims to provide a co-extrusion molding die to solve the problem of inconvenient operation in cleaning the injection port of the existing co-extrusion molding die mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a co-extrusion mold, comprising a main body, an extrusion cavity is formed inside the main body, and the cavity at least extends to the outside of one end of the main body; an injection port is opened in the middle of the main body and communicates with the cavity inside the main body; and a heating assembly is also included, which is composed of a heating element and a connecting element, wherein the heating element is inserted into the interior of the main body and is arranged around the injection port as a whole; the connecting element is installed at the end of the heating element, the connecting element is inside the main body, and is on the same plane as the front surface of the main body;

[0006] The connecting piece is also provided with an electric wire, one end of which is connected to an external power source, and the other end is inserted into the connecting piece and electrically connected to the heating element, so as to heat the heating element. The heating element uses the heat generated by itself to heat-melt the solidified material in the injection port, thereby achieving the purpose of cleaning.

[0007] Preferably, a ring groove is provided on the front surface of the main body, which is concentric with the injection port, and insertion holes are provided at equal angles inside the ring groove. The heating element includes a heating column inserted into the insertion hole, and the connecting element is installed at the end of the heating column.

[0008] Preferably, the connecting part includes a ceramic ring having an annular groove formed in the direction of the heating column, and the ends of the heating column are placed in the annular groove. One end of the wire passes through the annular groove of the ceramic ring and is connected to the heating column, thereby supplying power to all the heating columns and heating the heating columns, wherein the heating column is a common heating resistor on the market.

[0009] Preferably, a wiring groove is further provided on the front surface of the main body, and the wiring groove is connected to the ring groove, and the wires are placed in the wiring groove, thereby achieving the placement of the wires and preventing the wires from being scattered outside.

[0010] Preferably, the thickness of the ceramic ring is equal to the inner depth of the ring groove, so as to avoid the ceramic ring being too thick and protruding outside the front surface of the main body and affecting normal use, and to avoid the ceramic ring being too thin and affecting the overall appearance.

[0011] Preferably, a surface groove is provided on the top of the main body, the cavity in the main body is located in the surface groove, and a cover plate is also placed in the surface groove to protect the cavity and prevent dust from falling in when not in use.

[0012] Preferably, holes are provided at the four corners of the main body, and bolts are screwed into the holes to achieve splicing of the main body, wherein the main body is composed of multiple plates.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The designed heating component can heat the solidified material to a viscous or completely melted state. When the extrusion material is not changed, it can be used directly without cleaning. Even if the extrusion material needs to be replaced, cleaning is more convenient and saves cleaning time. The shortcomings of the existing structure in use are improved, and the heating component will not affect the normal connection and injection of the injection port, and the overall flexibility and applicability are high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A magnified schematic diagram of the middle A area;

[0017] Figure 3 It is a schematic diagram of the utility model in use.

[0018] In the figure:

[0019] 100, main body; 100a, injection port; 100b, ring groove; 100c, wiring groove; 100d, surface groove; 101, cover plate;

[0020] 200, ceramic ring; 201, electric wire; 202, heating column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a co-extrusion molding die, comprising

[0023] The main body 100 has an extrusion cavity formed therein, and the cavity at least extends to the outside of one end of the main body 100;

[0024] The injection port 100a is provided in the middle of the main body 100 and communicates with the cavity inside the main body 100;

[0025] Also includes

[0026] The heating assembly is composed of a heating element and a connecting element.

[0027] The heating element is inserted into the interior of the main body 100 and is disposed around the injection port 100a as a whole; the connecting element is installed at the end of the heating element, and the connecting element is located inside the main body 100 and is on the same plane as the front surface of the main body 100;

[0028] The connecting piece is also provided with an electric wire 201, one end of which is connected to an external power source, and the other end is inserted into the connecting piece and electrically connected to the heating element, so as to heat the heating element. The heating element uses the heat generated by itself to heat-melt the solidified material in the injection port 100a, thereby achieving the purpose of cleaning.

[0029] In this embodiment, preferably, a ring groove 100b is provided on the front surface of the main body 100, and the ring groove 100b is concentric with the injection port 100a. Plug holes are also provided at equal angles inside the ring groove 100b. The heating element includes a heating column 202 inserted into the plug hole, and the connecting member is installed at the end of the heating column 202.

[0030] In this embodiment, preferably, the connecting part includes a ceramic ring 200, which has an annular groove in the direction of the heating column 202, and the ends of the heating column 202 are placed in the annular groove. One end of the wire 201 passes through the annular groove of the ceramic ring 200 and is connected to the heating column 202, so as to supply power to all the heating columns 202 and heat the heating columns 202, wherein the heating column 202 is a common heating resistor on the market.

[0031] In this embodiment, preferably, a wiring groove 100c is further provided on the front surface of the main body 100, and the wiring groove 100c is connected to the annular groove 100b, and the wires 201 are placed in the wiring groove 100c, so as to place the wires 201 and prevent the wires 201 from being scattered outside.

[0032] In this embodiment, preferably, the thickness of the ceramic ring 200 is equal to the inner depth of the ring groove 100b, so as to avoid the ceramic ring 200 being too thick and protruding to the outside of the front surface of the main body 100 and affecting normal use, and to avoid the ceramic ring 200 being too thin and affecting the overall appearance.

[0033] In this embodiment, preferably, a surface groove 100d is opened on the top of the main body 100, and the cavity in the main body 100 is in the surface groove 100d. A cover plate 101 is also placed in the surface groove 100d. The cavity is protected by the cover plate 101 to prevent dust from falling in when not in use.

[0034] In this embodiment, preferably, holes are opened at the four corners of the main body 100, and bolts are screwed into the holes to achieve the splicing of the main body 100, wherein the main body 100 is composed of multiple plates.

[0035] Although the embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A co-extrusion die, comprising A main body (100) having an extrusion cavity formed therein, the cavity at least extending to the outside of one end of the main body (100); An injection port (100a) is disposed in the middle of the main body (100) and is communicated with a cavity inside the main body (100); Features: Also includes The heating assembly is composed of a heating element and a connecting element. The heating element is inserted into the interior of the main body (100) and is disposed around the injection port (100a) as a whole; the connecting element is mounted at the end of the heating element, the connecting element is located inside the main body (100) and is located on the same plane as the front surface of the main body (100); The connecting piece is also provided with an electric wire (201), one end of which is connected to an external power source, and the other end of which is inserted into the connecting piece and electrically connected to the heating element.

2. A co-extrusion die according to claim 1, characterized in that: The front surface of the main body (100) is provided with an annular groove (100b), the annular groove (100b) and the injection port (100a) are concentric, and insertion holes are also provided at equal angles inside the annular groove (100b), the heating element comprises a heating column (202) inserted into the insertion hole, and the connecting element is installed at the end of the heating column (202).

3. A co-extrusion die according to claim 2, characterized in that: The connecting piece comprises a ceramic ring (200), the ceramic ring (200) being provided with an annular groove in the direction of the heating column (202), the ends of the heating column (202) being placed in the annular groove, and one end of the electric wire (201) passing through the annular groove of the ceramic ring (200) and being connected to the heating column (202).

4. A co-extrusion die according to claim 3, characterized in that: The front surface of the main body (100) is also provided with a wiring groove (100c), the wiring groove (100c) being connected to the annular groove (100b), and the electric wire (201) is placed in the wiring groove (100c).

5. A co-extrusion die according to claim 3, characterized in that: The thickness of the ceramic ring (200) is equal to the inner depth of the ring groove (100b).

6. A co-extrusion mold according to claim 1, characterized in that: A surface groove (100d) is provided on the top of the main body (100), a cavity in the main body (100) is located in the surface groove (100d), and a cover plate (101) is also placed in the surface groove (100d).

7. A co-extrusion die according to claim 6, characterized in that: Holes are provided at the four corners of the main body (100), and bolts are screwed into the holes.

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