Spraying-free wave-absorbing shell processing device

Abstract

The utility model belongs to the technical field of wave-absorbing shell processing, and provides a spraying-free wave-absorbing shell processing device which comprises a feeding pipe and two forming plates, the two forming plates are symmetrically arranged, and the feeding pipe is connected to one sides of the two forming plates respectively; a mold cavity and a mounting cavity are formed in an inner cavity of the forming plate; a heat dissipation structure is arranged in the mounting cavity, the heat dissipation structure is composed of a water inlet pipe, a main flow channel, a heat exchange cavity, a branch flow channel and an air guide pipe, the water inlet pipe is mounted on the side, away from the feeding pipe, of the forming plate, and the water inlet pipe is inwards communicated with the main flow channel; according to the scheme, the problem that cooling is not uniform after the mold is formed is solved, temperature distribution of the mold can be more accurately controlled, cooling is more uniform, when the spraying-free wave-absorbing shell is subjected to injection molding, for some wave-absorbing materials sensitive to the temperature, rapid cooling and shaping can be achieved, meanwhile, it is guaranteed that all parts of the shell shrink uniformly, and the service life of the shell is prolonged. The size precision and the surface quality of the shell are improved.

Description

Technical Field

[0001] This utility model relates to the field of microwave absorbing shell processing technology, specifically a spray-free microwave absorbing shell processing device. Background Technology

[0002] Paint-free microwave absorbing housings are products that combine paint-free technology with microwave absorbing materials in housing manufacturing. Paint-free materials can be directly injection molded or extruded, eliminating the need for additional spraying equipment, paints, and related labor costs, significantly reducing production costs. Furthermore, the reduction in spraying processes improves production efficiency, further saving costs.

[0003] However, existing coating-free microwave absorbing shell processing molds suffer from uneven cooling, resulting in uneven shrinkage of different parts of the shell during cooling, which in turn affects the dimensional accuracy and quality of the forming mold. Therefore, we propose a coating-free microwave absorbing shell processing device. Utility Model Content

[0004] The purpose of this invention is to provide a coating-free microwave absorbing shell processing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating-free microwave absorbing shell processing device, comprising a feed pipe and a forming plate, wherein two forming plates are symmetrically arranged, and the feed pipe is respectively connected to one side of the two forming plates; the inner cavity of the forming plate is provided with two chambers: a mold cavity and an installation cavity;

[0006] The mounting cavity is equipped with a heat dissipation structure, which consists of a water inlet pipe, a main channel, a heat exchange chamber, a branch channel, and a vent pipe. The water inlet pipe is installed on the side of the molding plate away from the feed pipe, and the water inlet pipe is connected to the main channel inward.

[0007] The main channel is symmetrically provided with heat exchange chambers on both sides. The heat exchange chambers are connected to the main channel through a branch channel. There are multiple heat exchange chambers, which are evenly arranged on the side of the mold cavity. The water in the main channel (9) is injected into the heat exchange chamber through the branch channel and heat exchange is performed between the heat exchange chamber and the mold cavity.

[0008] Preferably, a molding cover is installed on the front side of the molding plate, and the molding cover covers the front side of the mold cavity.

[0009] Preferably, the end of the heat exchange chamber away from the main channel is connected to a gas guide pipe, and a one-way gas valve is installed at the connection between the gas guide pipe and each heat exchange chamber. Ventilation holes are symmetrically arranged on the outer wall of the molding plate, and the other end of the gas guide pipe is connected to the ventilation holes.

[0010] Preferably, a gas valve is installed at the connection between the air guide tube and the air dispersing hole.

[0011] Preferably, a barrier plate is provided between the mold cavity and the mounting cavity to prevent the two cavities from communicating with each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This solution aims to address the problem of uneven cooling after mold forming. It employs microchannel cooling technology, designing an array of cooling channels on the back of the mold cavity. Coolant flows through these channels, enabling more precise control of the mold's temperature distribution and resulting in more uniform cooling. When injection molding non-coating microwave absorbing shells, it can achieve rapid cooling and shaping for some temperature-sensitive microwave absorbing materials, while ensuring uniform shrinkage of all parts of the shell, thus improving the dimensional accuracy and surface quality of the shell. Attached Figure Description

[0014] Figure 1 This is the front view of the present utility model;

[0015] Figure 2 This is a side sectional view of the molded plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the heat dissipation structure of this utility model.

[0017] In the diagram: 1. Feed pipe, 2. Forming plate, 3. Water inlet pipe, 4. Vent hole, 5. Mold cavity, 6. Mounting cavity, 7. Heat exchange cavity, 8. Diversion channel, 9. Main channel, 10. Air guide pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example:

[0021] Please see Figure 1-3The present invention provides the following technical solution: a coating-free microwave absorbing shell processing device, comprising a feed pipe 1 and a forming plate 2; two forming plates 2 are symmetrically arranged, and the feed pipe 1 is respectively connected to one side of the two forming plates 2;

[0022] The inner cavity of the molding plate 2 has two chambers: a mold chamber 5 and an installation chamber 6. A partition plate is provided between the mold chamber 5 and the installation chamber 6 to prevent the two chambers from communicating with each other. A molding cover is installed on the front side of the molding plate 2 and covers the front side of the mold chamber 5.

[0023] The mounting cavity 6 is equipped with a heat dissipation structure, which consists of a water inlet pipe 3, a main channel 9, a heat exchange cavity 7, a branch channel 8, and a vent pipe 10. The water inlet pipe 3 is installed on the side of the molding plate 2 away from the feed pipe 1, and the water inlet pipe 3 is connected to the main channel 9 inward.

[0024] Heat exchange chambers 7 are symmetrically arranged on both sides of the main channel 9. The heat exchange chambers 7 are connected to the main channel 9 through the branch channel 8. There are multiple heat exchange chambers 7, which are evenly arranged on the side of the mold cavity 5. Water in the main channel 9 flows into the heat exchange chambers 7 through the branch channel 8, and heat exchange occurs between the heat exchange chambers 7 and the mold cavity 5.

[0025] A gas guide pipe 10 is connected to one end of the heat exchange chamber 7 away from the main channel 9. A gas one-way valve is installed at the connection between the gas guide pipe 10 and each heat exchange chamber 7. Ventilation holes 4 are symmetrically arranged on the outer wall of the molding plate 2. The other end of the gas guide pipe 10 is connected to the ventilation holes 4. A gas valve is installed at the connection between the gas guide pipe 10 and the ventilation holes 4.

[0026] This solution aims to solve the problem of uneven cooling after mold forming. It adopts microchannel cooling technology and designs an array of cooling channels on the back of the mold cavity 5. The coolant flows in these channels, which can more accurately control the temperature distribution of the mold and make the cooling more uniform. When injection molding a paint-free microwave absorbing shell, it can achieve rapid cooling and shaping for some temperature-sensitive microwave absorbing materials, while ensuring uniform shrinkage of all parts of the shell and improving the dimensional accuracy and surface quality of the shell.

[0027] Meanwhile, a gas guide pipe 10 is provided on the outside of the heat exchange chamber 7. When the temperature inside the heat exchange chamber 7 rises and steam is generated, the gas is guided into the gas guide pipe 10 through the gas one-way valve. Then the steam is guided to the vent hole 4 along the gas guide pipe 10 and discharged, keeping the heat exchange chamber 7 in a stable pressure state.

[0028] The water inlet pipe 3 extends into the interior of the main channel 9. A circulation pump is installed at the other end of the water inlet pipe 3. After heat exchange is completed, the circulation pump is used to extract the coolant to avoid affecting the temperature control when the mold is used again.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray-free wave-absorbing shell processing device, comprising a feeding pipe (1) and a forming plate (2), characterized in that: Two of the forming plates (2) are symmetrically arranged, and the feeding pipe (1) is connected to one side of each of the forming plates (2); the inner cavity of the forming plate (2) is provided with two cavities, i.e., a mold cavity (5) and a mounting cavity (6); A heat dissipation structure is arranged in the mounting cavity (6), and the heat dissipation structure is composed of a water inlet pipe (3), a main flow channel (9), a heat exchange cavity (7), a branch flow channel (8) and a gas guide pipe (10); the water inlet pipe (3) is mounted on the side of the forming plate (2) away from the feeding pipe (1), and the water inlet pipe (3) is in communication with the main flow channel (9) inwardly. The heat exchange cavities (7) are symmetrically arranged on both sides of the main flow channel (9), and the heat exchange cavities (7) and the main flow channel (9) are connected through the branch flow channel (8); a plurality of heat exchange cavities (7) are arranged on the side of the mold cavity (5) uniformly; the water flow in the main flow channel (9) is injected into the heat exchange cavities (7) through the branch flow channel (8), and heat exchange is performed between the heat exchange cavities (7) and the mold cavity (5).

2. A spray-free wave-absorbing shell processing device according to claim 1, characterized in that: A mold cover is mounted on the front side of the forming plate (2), and the mold cover covers the front side of the mold cavity (5).

3. A spray-free wave-absorbing shell processing device according to claim 1, characterized in that: The end of the heat exchange cavity (7) away from the main flow channel (9) is connected with the gas guide pipe (10), a gas one-way valve is mounted at the joint of the gas guide pipe (10) and each heat exchange cavity (7), a gas distribution hole (4) is symmetrically arranged on the outer side wall of the forming plate (2), and the other end of the gas guide pipe (10) is in communication with the gas distribution hole (4).

4. A spray-free wave-absorbing shell processing device according to claim 1, characterized in that: A gas valve is mounted at the joint of the gas guide pipe (10) and the gas distribution hole (4).

5. A spray-free wave-absorbing shell processing device according to claim 1, characterized in that: A partition plate is arranged between the mold cavity (5) and the mounting cavity (6), so that the two cavities are not in communication with each other.

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