High-temperature injection mold

Abstract

The utility model relates to a high-temperature injection mold which comprises a mold base, an upper mold core and a lower mold core, the upper mold core and the lower mold core are assembled in the mold base, heating rods are installed on the side faces of the upper mold core and the lower mold core, and heating plates are installed at the top of the upper mold core and the bottom of the lower mold core. A titanium alloy meson and a first heat insulation plate are mounted on the side surface of the upper mold core, the side surface of the lower mold core and the surface of the heating plate; a second heat insulation plate wraps the outer surface of the mold base; the heating rod and the heating plate are combined to heat the mold, the temperature of the mold core can be accurately controlled, a conduction oil heating mode is not needed any more, environmental pollution and conduction oil leakage are avoided, the maintenance period of the mold is greatly prolonged, and the production efficiency is improved. The titanium alloy meson and the first heat insulation plate are installed on the side face of the upper mold core, the side face of the lower mold core and the surface of the heating plate, the outer surface of the mold base is wrapped with the second heat insulation plate, heat conduction from the upper mold core and the lower mold core to the mold base can be reduced, and the temperature of the outer surface of the mold is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a high-temperature injection mold. Background Art

[0002] PEEK plastic has many excellent properties such as high mechanical strength, high temperature resistance, acid and alkali resistance, wear resistance, fatigue resistance, flame retardancy, etc. It is widely used in aerospace, medical equipment, automotive industry, electronic appliances and other fields. When PEEK plastic is injected, the mold core temperature must be controlled within the range of 170-250℃. Conventional mold heat transfer oil heating method, when the temperature reaches about 200℃, will produce smoke, pollute the environment, and easily cause heat transfer oil leakage, shortening the maintenance cycle of the mold. In addition, if the mold base temperature is too high, scalding accidents are likely to occur. Utility Model Content

[0003] The purpose of the utility model is to design a high-temperature injection mold so as to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A high-temperature injection mold comprises a mold base and an upper mold core and a lower mold core assembled inside the mold base, the sides of the upper mold core and the lower mold core are both installed with heating rods, the top of the upper mold core and the bottom of the lower mold core are both installed with heating plates, the sides of the upper mold core, the sides of the lower mold core and the surfaces of the heating plates are installed with titanium alloy particles and a first heat insulation plate, and the outer surface of the mold base is wrapped with a second heat insulation plate.

[0006] Furthermore, the titanium alloy meson is provided with several.

[0007] Furthermore, a junction box is installed on the side of the mold base, and the heating rod and the heating plate are connected to the junction box through wires.

[0008] Furthermore, a plurality of wire pressing plates for pressing the wires are installed on the side of the mold base.

[0009] Furthermore, a thermal insulation film is sandwiched between the mold base and the second thermal insulation board.

[0010] Furthermore, the heating rod and the heating plate are both fixed inside the mold base by screws.

[0011] The beneficial effects of the utility model are:

[0012] By using a combination of heating rods and heating plates to heat the mold, the mold core temperature can be accurately controlled to meet the temperature requirements of different types of PEEK plastic materials for injection molding. There is no need to use thermal oil heating, which avoids environmental pollution and thermal oil leakage, thereby greatly extending the maintenance cycle of the mold;

[0013] Titanium alloy cores and a first heat insulation plate are installed on the side of the upper mold core, the side of the lower mold core and the surface of the heating plate, and a second heat insulation plate is wrapped on the outer surface of the mold base, which can reduce heat conduction from the upper mold core and the lower mold core to the mold base, reduce the temperature of the outer surface of the mold, and prevent scalding accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0016] Figure 2 This is a schematic diagram of the structure of the utility model after the second heat insulation board and the heat insulation film are hidden;

[0017] Figure 3 It is a schematic diagram of the structure of the upper mold core and the lower mold core after being combined in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the upper mold core in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the upper mold core in another perspective of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the lower mold core in the utility model;

[0021] Figure 7 It is a structural schematic diagram of the lower mold core in another perspective of the utility model.

[0022] The names of the components marked in the figure are as follows:

[0023] Mold base; 2. Upper mold core; 3. Lower mold core; 4. Heating rod; 5. Heating plate; 6. Titanium alloy meson; 7. First thermal insulation board; 8. Second thermal insulation board; 9. Junction box; 10. Electric wires; 11. Wire pressing board. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] like Figure 1-7 As shown, a high-temperature injection mold comprises a mold base 1 and an upper mold core 2 and a lower mold core 3 assembled inside the mold base 1, heating rods 4 are installed on the sides of the upper mold core 2 and the lower mold core 3, and heating plates 5 are installed on the top of the upper mold core 2 and the bottom of the lower mold core 3. The heating rod 4 and the heating plate 5 are fixed to the inside of the mold base 1 by screws. The mold is heated by combining the heating rod 4 and the heating plate 5, and the mold core temperature can be accurately controlled to meet the temperature requirements of different types of PEEK plastic materials for injection molding;

[0026] Titanium alloy mesons 6 and a first heat insulating plate 7 are installed on the side of the upper mold core 2, the side of the lower mold core 3 and the surface of the heating plate 5. A plurality of titanium alloy mesons 6 are provided and distributed on the side of the upper mold core 2, the side of the lower mold core 3 and the surface of the heating plate 5, which can reduce the heat conduction from the upper mold core 2 and the lower mold core 3 to the mold base 1, thereby reducing the temperature of the mold base 1;

[0027] A junction box 9 and several wire pressing plates 11 are installed on the side of the mold base 1. The wire pressing plates 11 are used to press the wires 10 against the side of the mold base 1 to prevent the wires 10 from being placed in a messy manner; the heating rod 4 and the heating plate 5 are connected to the junction box 9 through the wires 10, and connected to the junction box 9 through an external power supply, so that the heating rod 4 and the heating plate 5 can generate heat; the outer surface of the mold base 1 is wrapped with a second thermal insulation board 8 to reduce the temperature of the outer surface of the mold; an insulation film is sandwiched between the mold base 1 and the second thermal insulation board 8 to reduce heat conduction from the mold base 1 to the second thermal insulation board 8, thereby further reducing the temperature of the outer surface of the mold.

[0028] Working principle:

[0029] like Figure 1-7 As shown, the high-temperature injection mold is provided with heating rods 4 installed on the sides of the upper mold core 2 and the lower mold core 3, and heating plates 5 are installed on the top of the upper mold core 2 and the bottom of the lower mold core 3. The mold is heated by combining the heating rods 4 and the heating plates 5, and the mold core temperature can be accurately controlled to meet the temperature requirements of different types of PEEK plastic materials for injection molding. It is no longer necessary to use heat transfer oil heating, which avoids environmental pollution and heat transfer oil leakage, thereby greatly extending the maintenance cycle of the mold;

[0030] By installing a titanium alloy core 6 and a first thermal insulation plate 7 on the side of the upper mold core 2, the side of the lower mold core 3 and the surface of the heating plate 5, the outer surface of the mold base 1 is wrapped with a second thermal insulation plate 8, and a thermal insulation film is sandwiched between the mold base 1 and the second thermal insulation plate 8, which can reduce heat conduction from the upper mold core 2 and the lower mold core 3 to the mold base 1, and reduce heat conduction from the mold base 1 to the second thermal insulation plate 8, thereby reducing the temperature of the outer surface of the mold.

[0031] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high temperature injection mold, characterized in that: The mold base (1) comprises an upper mold core (2) and a lower mold core (3) assembled inside the mold base (1); the sides of the upper mold core (2) and the lower mold core (3) are both installed with heating rods (4); the top of the upper mold core (2) and the bottom of the lower mold core (3) are both installed with heating plates (5); the sides of the upper mold core (2), the sides of the lower mold core (3) and the surfaces of the heating plates (5) are installed with titanium alloy particles (6) and a first heat insulation plate (7); and the outer surface of the mold base (1) is wrapped with a second heat insulation plate (8).

2. The high temperature injection mold according to claim 1, characterized in that: A plurality of titanium alloy mesons (6) are provided.

3. The high temperature injection mold according to claim 1, characterized in that: A junction box (9) is installed on the side of the mold base (1), and the heating rod (4) and the heating plate (5) are connected to the junction box (9) via electric wires (10).

4. The high temperature injection mold according to claim 3, characterized in that: A plurality of wire pressing plates (11) for pressing the wires (10) are installed on the side of the mold base (1).

5. The high temperature injection mold according to claim 1, characterized in that: A heat insulation film is sandwiched between the mold base (1) and the second heat insulation board (8).

6. The high temperature injection mold according to claim 1, characterized in that: The heating rod (4) and the heating plate (5) are both fixed inside the mold base (1) by means of screws.

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