Double-color injection mold for producing electric appliance shell

Abstract

The utility model discloses a double-color injection mold for producing an electric appliance shell, which relates to the field of injection molds and comprises a mold main body, a section mold is mounted on the outer wall of the mold main body in a sliding manner, a forming groove is formed in the outer wall of the section mold, and a fixing mechanism for disassembling and assembling the section mold is arranged on the outer wall of the mold main body. The fixing mechanism comprises a limiting block fixedly installed on the outer wall of the section mold, a fixing block is slidably installed in the mold body, a fixing bolt in threaded connection with the mold body is rotatably installed at the end of the fixing block, a rotating handle is fixedly installed at the end of the fixing bolt, a clamping groove is formed in the outer wall of the limiting block, and a cooling mechanism is arranged on the outer wall of the mold. According to the double-color injection mold for producing the electric appliance shell, by arranging the fixing mechanism, the section mold can be rapidly disassembled and assembled from the outer wall of the mold body, cost and manual labor are greatly reduced, the efficiency of cleaning the forming groove is remarkably improved, and therefore the overall production efficiency is improved, the forming groove can be effectively cooled through the cooling mechanism, and the demolding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically a two-color injection mold for producing electrical appliance casings. Background Technology

[0002] The production of electrical appliance casings is inseparable from injection molds. Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Two-color injection molds can mold two different plastic materials in two stages on the same injection molding machine using a single mold, with the product only needing to exit the mold once. This has advantages such as improved product performance, reduced costs, and optimized appearance, and is widely used in the production of electronic products, home appliances, and the automotive industry.

[0003] In the prior art, Chinese Patent Application No. CN202420531385.3 discloses a rotary two-color injection mold. This rotary two-color injection mold includes a front mold, a first front mold cavity, and a second front mold cavity. It also includes: a rear mold provided on one side of the front mold; the surface of the rear mold near the front mold symmetrically provided with a first rear mold cavity and a second rear mold cavity; a sealing post penetrating through both the first and second rear mold cavities of the rear mold; and an ejection structure located on the side of the rear mold away from the front mold, with the height of the ejection structure corresponding to the second front mold cavity. The ejection structure is used to drive the sealing post to move to one side of the front mold. By setting an ejection structure independent of the rear mold, the rear mold does not rotate, reducing the stress on the spindle, reducing spindle wear, improving the stability of the mold operation, increasing the service life of the mold, and reducing power consumption.

[0004] Based on the above information, it can be seen that in the existing technology, when cleaning the molding groove is required, the fixing bolts of the entire mold need to be removed by turning the knobs with a torque wrench to complete the mold disassembly and then cleaning. The cost and labor involved are relatively high, which affects production efficiency. Therefore, further improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide a two-color injection mold for producing electrical appliance casings, in order to solve the problem mentioned in the background art that when the molding cavity needs to be cleaned, the fixing bolts of the entire mold need to be removed by turning the knobs with a torque wrench to complete the mold disassembly and then cleaning, which is costly and labor-intensive and affects production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a two-color injection mold for producing electrical appliance casings, comprising a mold body, a mold template slidably mounted on the outer wall of the mold body, and a forming groove provided on the outer wall of the mold template, and a fixing mechanism for disassembling and assembling the mold template provided on the outer wall of the mold body;

[0007] The fixing mechanism includes a limiting block fixedly installed on the outer wall of the mold, a fixing block slidably installed inside the mold body, and a fixing bolt threadedly connected to the mold body is rotatably installed at the end of the fixing block, and a handle is fixedly installed at the end of the fixing bolt. A slot is opened on the outer wall of the limiting block, and a cooling mechanism for cooling the forming groove is provided on the outer wall of the mold.

[0008] Furthermore, the limiting block is rectangular in shape, and its length corresponds to the length of the mold. The limiting block is also symmetrically arranged on both outer walls of the mold.

[0009] Furthermore, the outer wall of the mold body is provided with a limiting groove corresponding to the mold and the limiting block, and one end of the limiting groove penetrates through the outer wall of the mold body, and the length of the limiting groove is less than the length of the mold body.

[0010] Furthermore, the end of the fixing block is designed in the shape of a frustum, and the outer diameter of the end of the fixing block that is close to the limiting block is smaller than the outer diameter of the other end of the fixing block, and the fixing blocks are symmetrically arranged on both sides of the limiting block.

[0011] Furthermore, the fixing bolt is provided correspondingly to the fixing block, and the outer wall of the fixing bolt is provided with a thread for adjusting the position of the fixing block. One end of the fixing bolt is located outside the mold body, and the slot is provided correspondingly to the fixing block.

[0012] Furthermore, the cooling mechanism includes a water storage tank fixedly installed on the outer wall of the mold body, and a circulating pump fixedly installed on the top of the water storage tank. A cooling chamber is opened inside the mold. The end of the circulating pump is provided with an inlet pipe and a connecting pipe. The outer wall of the water storage tank is provided with an outlet pipe and a water delivery pipe.

[0013] Furthermore, the cooling chamber is provided in correspondence with the molding tank, one end of the water inlet pipe is connected to the cooling chamber, and the other end of the water inlet pipe is connected to the circulating pump.

[0014] Furthermore, one end of the water outlet pipe is connected to the cooling chamber, and the other end of the water outlet pipe is connected to the inside of the water storage tank. One end of the connecting pipe is connected to the water storage tank, and the other end of the connecting pipe is connected to the circulating pump. One end of the water supply pipe is connected to the water storage tank, and the other end of the water supply pipe is connected to an external water source.

[0015] Furthermore, both the inlet pipe and the outlet pipe are located at one end of the opening of the limiting groove, and the inlet pipe, outlet pipe, connecting pipe and water supply pipe are all made of flexible hose.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The appliance casing is produced using a two-color injection mold. By setting up a fixing mechanism, simply turning the handle drives the fixing bolt to rotate, thereby adjusting the position of the fixing block. This allows the fixing block to engage or disengage from the slot on the outer wall of the limiting block, enabling the mold to be quickly disassembled from the outer wall of the mold body. Compared to the existing technology that requires a torque wrench to remove the entire set of mold fixing bolts, this greatly reduces costs and labor, significantly improves the efficiency of cleaning the molding groove, and thus improves overall production efficiency.

[0018] Furthermore, the cooling mechanism effectively cools the molding tank. The circulating pump pumps water from the storage tank into the cooling chamber inside the mold through the inlet pipe, carrying away the heat generated during the molding process. The hot water is then returned to the storage tank through the outlet pipe, achieving circulating cooling. This allows the electrical casing to cool and solidify quickly during injection molding, ensuring product quality and reducing product defects caused by uneven temperature. It also helps improve production efficiency and shorten the production cycle. Moreover, the inlet pipe, outlet pipe, connecting pipe, and water delivery pipe are all made of flexible hoses, which will not be affected during the operation of the mold body, ensuring the normal operation of the cooling system and improving demolding efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the mold and forming groove structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the cooling chamber structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the fixing bolt, fixing block and swivel handle of this utility model.

[0025] In the diagram: 1. Mold body; 101. Limiting groove; 2. Mold; 201. Forming groove; 202. Limiting block; 203. Slot; 204. Cooling chamber; 3. Fixing block; 301. Fixing bolt; 302. Rotary handle; 4. Circulating pump; 401. Water inlet pipe; 402. Water outlet pipe; 403. Water delivery pipe; 404. Connecting pipe; 5. Water storage tank. Detailed Implementation

[0026] 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.

[0027] Example 1: Please refer to Figure 1-6 This utility model provides the following technical solution: a two-color injection mold for producing electrical appliance casings, comprising a mold body 1, a mold 2 slidably mounted on the outer wall of the mold body 1, and a forming groove 201 provided on the outer wall of the mold 2; a fixing mechanism for assembling and disassembling the mold 2 provided on the outer wall of the mold body 1, the fixing mechanism including a limiting block 202 fixedly mounted on the outer wall of the mold 2; a fixing block 3 slidably mounted inside the mold body 1, and a fixing bolt 301 threadedly connected to the mold body 1 rotatably mounted at the end of the fixing block 301; a handle 302 fixedly mounted at the end of the fixing bolt 301; a slot 203 provided on the outer wall of the limiting block 202; the limiting block 202 is generally rectangular in design, and its length corresponds to the length of the mold 2. Furthermore, the limiting blocks 202 are symmetrically arranged on both sides of the outer wall of the mold 2. The outer wall of the mold body 1 is provided with limiting grooves 101 corresponding to the mold 2 and the limiting blocks 202. One end of the limiting grooves 101 penetrates the outer wall of the mold body 1, and the length of the limiting grooves 101 is less than the length of the mold body 1. The end of the fixing block 3 is designed in the shape of a frustum. The outer diameter of the end of the fixing block 3 close to the limiting block 202 is smaller than the outer diameter of the other end of the fixing block 3. The fixing blocks 3 are symmetrically arranged on both sides of the limiting blocks 202. The fixing bolts 301 are correspondingly arranged with the fixing blocks 3. The outer wall of the fixing bolts 301 is provided with threads for adjusting the position of the fixing blocks 3. One end of the fixing bolts 301 is located outside the mold body 1. The slots 203 are correspondingly arranged with the fixing blocks 3.

[0028] When disassembling mold 2 to clean molding groove 201, firstly, disassemble the water inlet pipe 401 and water outlet pipe 402 on the outer wall of mold 2. Rotate the handle 302 to rotate the fixing bolt 301, thereby adjusting the position of the fixing block 3 so that the fixing block 3 disengages from the slot 203 on the outer wall of the limiting block 202, releasing the limiting effect of the fixing block 3 on mold 2. Then, remove mold 2 from the outer wall of mold body 1. This allows for quick disassembly of mold 2 from the outer wall of mold body 1, enabling cleaning of molding groove 201. During installation, align mold 2 with the limiting slot 101 and slide it into mold body 1. Rotate the handle 302 in the opposite direction to rotate the fixing bolt 301, thereby adjusting the position of the fixing block 3 so that the fixing block 3 engages with the slot 203 on the outer wall of the limiting block 202, fixing mold 2. This allows for convenient installation. Compared to the existing technology that requires a torque wrench to disassemble the entire set of mold fixing bolts, this method greatly reduces costs and labor, significantly improves the efficiency of cleaning molding groove 201, and thus improves overall production efficiency.

[0029] Example 2: Based on Example 1, a cooling mechanism is also disclosed, the specific structure of which is as follows: The outer wall of the mold is provided with a cooling mechanism for cooling the forming groove 201. The cooling mechanism includes a water tank 5 fixedly installed on the outer wall of the mold body 1, and a circulating pump 4 is fixedly installed on the top of the water tank 5. A cooling chamber 204 is opened inside the mold 2. The end of the circulating pump 4 is provided with an inlet pipe 401 and a connecting pipe 404. The outer wall of the water tank 5 is provided with an outlet pipe 402 and a water delivery pipe 403. The cooling chamber 204 is correspondingly arranged with the forming groove 201. One end of the inlet pipe 401 is connected to the cooling chamber 204. The inlet pipe 401 is connected to the circulation pump 4 at one end, the outlet pipe 402 is connected to the cooling chamber 204 at one end and the water storage tank 5 at the other end, the connecting pipe 404 is connected to the water storage tank 5 at one end and the circulation pump 4 at the other end, and the water supply pipe 403 is connected to the water storage tank 5 at one end and the water supply pipe 403 is connected to an external water source at the other end. The inlet pipe 401 and the outlet pipe 402 are both located at one end of the opening of the limiting groove 101, and the inlet pipe 401, the outlet pipe 402, the connecting pipe 404 and the water supply pipe 403 are all made of flexible hose.

[0030] The circulating pump 4 pumps water from the water storage tank 5 into the cooling chamber 204 inside the mold 2 through the water inlet pipe 401, carrying away the heat generated during the molding process. This effectively cools the molding tank 201. The hot water is then returned to the water storage tank 5 through the water outlet pipe 402, achieving circulating cooling. This allows the electrical casing to cool down and solidify quickly during injection molding, ensuring product quality and reducing product defects caused by uneven temperature. It also helps improve production efficiency and shorten the production cycle. Furthermore, the water inlet pipe 401, water outlet pipe 402, connecting pipe 404, and water delivery pipe 403 are all made of flexible hoses, which will not be affected during the operation of the mold body 1, ensuring the normal operation of the cooling system and improving demolding efficiency.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric appliance shell production two-color injection mold, comprising a mold body (1), a mold cavity (2) is slidably installed on the outer wall of the mold body (1), and a forming groove (201) is arranged on the outer wall of the mold cavity (2); a fixing mechanism for disassembling and assembling the mold cavity (2) is arranged on the outer wall of the mold body (1). characterized in that The fixing mechanism comprises a limiting block (202) fixedly installed on the outer wall of the mold cavity (2), a fixing block (3) slidably installed in the mold body (1), a fixing bolt (301) threadedly connected with the mold body (1) and rotatably installed at the end of the fixing block (3), and a rotating handle (302) fixedly installed at the end of the fixing bolt (301); a clamping groove (203) is arranged on the outer wall of the limiting block (202), and a cooling mechanism for cooling the forming groove (201) is arranged on the outer wall of the mold.

2. The dual-color injection mold for producing an electric appliance housing according to claim 1, characterized in that: The limiting block (202) is designed in a rectangular shape, and the length of the limiting block (202) corresponds to the length of the mold cavity (2); the limiting block (202) is symmetrically arranged on the outer wall of the mold cavity (2).

3. The dual color injection mold for producing an electric appliance shell according to claim 1, wherein: A limiting groove (101) corresponding to the mold cavity (2) and the limiting block (202) is arranged on the outer wall of the mold body (1), and one end of the limiting groove (101) penetrates the outer wall of the mold body (1); the length of the limiting groove (101) is less than the length of the mold body (1).

4. The dual color injection mold for producing an electrical appliance housing according to claim 1, wherein: The end of the fixing block (3) is designed in a circular truncated cone shape, and the outer diameter of one end of the fixing block (3) close to the limiting block (202) is less than the outer diameter of the other end of the fixing block (3); the fixing block (3) is symmetrically arranged on the two sides of the limiting block (202).

5. The dual color injection mold for producing an electrical appliance housing according to claim 1, wherein: The fixing bolt (301) corresponds to the fixing block (3), and a thread for adjusting the position of the fixing block (3) is arranged on the outer wall of the fixing bolt (301); one end of the fixing bolt (301) is located outside the mold body (1); the clamping groove (203) corresponds to the fixing block (3).

6. The dual color injection mold for producing an electrical appliance housing according to claim 1, wherein: The cooling mechanism comprises a water storage tank (5) fixedly installed on the outer wall of the mold body (1), and a circulating pump (4) fixedly installed on the top of the water storage tank (5); a cooling chamber (204) is arranged in the mold cavity (2); the end of the circulating pump (4) is provided with a water inlet pipe (401) and a connecting pipe (404); the outer wall of the water storage tank (5) is provided with a water outlet pipe (402) and a water delivery pipe (403).

7. The dual color injection mold for producing an electrical appliance housing according to claim 6, characterized in that: The cooling chamber (204) corresponds to the forming groove (201); one end of the water inlet pipe (401) is communicated with the cooling chamber (204), and the other end of the water inlet pipe (401) is connected with the circulating pump (4).

8. The dual color injection mold for producing an electrical appliance housing according to claim 6, wherein: One end of the water outlet pipe (402) is communicated with the cooling chamber (204), and the other end of the water outlet pipe (402) is communicated with the inside of the water storage tank (5); one end of the connecting pipe (404) is communicated with the water storage tank (5), and the other end of the connecting pipe (404) is connected with the circulating pump (4); one end of the water delivery pipe (403) is communicated with the water storage tank (5), and the other end of the water delivery pipe (403) is connected with a water source.

9. The dual color injection mold for producing an electrical appliance housing according to claim 6, wherein: The water inlet pipe (401) and the water outlet pipe (402) are located at the opening end of the limiting groove (101), and the water inlet pipe (401), the water outlet pipe (402), the connecting pipe (404) and the water delivery pipe (403) are all made of soft pipe material.

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