Plastic shell injection mold with male mold capable of being rapidly replaced

Abstract

The utility model relates to the technical field of plastic shell injection molding, and discloses a plastic shell injection mold with a quickly replaceable male mold, which comprises a female mold groove, a cooling groove is arranged in the female mold groove, a male mold block is arranged on the inner wall of the female mold groove, an injection molding pipe is arranged on the left side of the inner wall of the female mold groove in a penetrating manner, and an electromagnetic valve is arranged on the outer wall of the injection molding pipe. A water pump is arranged on the outer wall of the water conveying pipe, a water tank is fixedly connected to the other end of the water conveying pipe, a spiral water outlet pipe penetrates through the top end of the water tank, and a replacement assembly is arranged at the top end of the male die block. According to the cooling device, cooling water in the water tank is conveyed into the cooling groove in the female die groove through the water conveying pipe, heat is absorbed, the plastic cooling rate is increased, plastic formed products are convenient to demould, the production efficiency is improved, meanwhile, the cooling water is conveyed back into the water tank through the spiral water outlet pipe to be reused, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic shell injection molding, in particular to a plastic shell injection molding die with a rapidly replaceable male mold. Background Art

[0002] Mold injection molding is a processing method used in mass production of certain complex-shaped parts. The heated and molten plastic raw materials are pushed by the injection molding machine screw and injected into the mold cavity of the plastic mold under high pressure. After cooling and solidification, the plastic molded product is obtained. The plastic mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine.

[0003] Since plastic molded products are made of melted plastic raw materials that are cooled and solidified in the mold cavity, the temperature of the product is high when it is just formed, which makes it inconvenient to demold it and easily damage the product. Therefore, it is necessary to cool it down to facilitate demolding and improve production efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a plastic shell injection mold with a quickly replaceable convex mold, aiming to improve the problem of difficult demoulding due to excessively high temperature during the molding of plastic products.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic shell injection mold with a quickly replaceable male mold, comprising a female mold groove, a cooling groove is arranged inside the female mold groove, a male module is arranged on the inner wall of the female mold groove, an injection tube is passed through the left side of the inner wall of the female mold groove, an electromagnetic valve is arranged on the outer wall of the injection tube, a water pipe is passed through the left end of the female mold groove, a water pump is arranged on the outer wall of the water pipe, the other end of the water pipe is fixedly connected to a water tank, a spiral water outlet pipe is passed through the top of the water tank, and a replacement component is arranged on the top of the male module.

[0006] As a further description of the above technical solution:

[0007] The replacement assembly includes a mounting block, a fixing block is provided on the inner wall of the mounting block, fixing bolts are threadedly connected to the four corners of the top of the fixing block, a cylinder is fixedly connected to the top of the fixing block, an L-shaped block is fixedly connected to the top of the cylinder, and a base plate is fixedly connected to the rear side of the bottom end of the L-shaped block.

[0008] As a further description of the above technical solution:

[0009] The top end of the spiral water outlet pipe is penetrated through the bottom end of the die groove.

[0010] As a further description of the above technical solution:

[0011] The end of the water delivery pipe away from the water tank is arranged on the left side of the inner wall of the cooling tank, and the end of the spiral water outlet pipe away from the water tank is arranged at the bottom of the inner wall of the cooling tank.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the water delivery pipe is fixedly connected to the inner wall of the bottom plate, and the outer wall of the spiral water outlet pipe is fixedly connected to the inner wall of the bottom plate.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the concave die groove is fixedly connected to the top end of the bottom plate.

[0016] As a further description of the above technical solution:

[0017] The top end of the convex module is fixedly connected to the bottom end of the mounting block.

[0018] As a further description of the above technical solution:

[0019] The outer walls of the four fixing bolts are respectively threadedly connected to the four corners of the top end of the mounting block.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the cooling trough is coordinated with the concave die groove, the convex die block, the water pipe, the water pump, the water tank and the spiral water outlet pipe to realize that the device can accelerate the cooling speed of the plastic molded product, facilitate demoulding, prevent damage to the product and improve production efficiency.

[0022] 2. In the utility model, the mounting block cooperates with the fixing block and the fixing bolts to realize that the device can quickly replace the convex module, while ensuring that the connection is firm and not easy to fall off and cause accidents during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a plastic housing injection mold with a quickly replaceable male mold proposed by the utility model;

[0024] Figure 2 An exploded view of a replacement assembly of a plastic housing injection mold with a quickly replaceable punch proposed by the utility model;

[0025] Figure 3 The utility model discloses a partial structural cross-sectional view of a plastic shell injection mold with a quickly replaceable male mold.

[0026] Legend:

[0027] 1. Base plate; 2. Concave die groove; 3. Convex die block; 4. Mounting block; 5. Cylinder; 6. L-shaped block; 7. Solenoid valve; 8. Injection pipe; 9. Water pipe; 10. Water pump; 11. Water tank; 12. Spiral water outlet pipe; 13. Fixing block; 14. Fixing bolt; 15. Cooling tank. DETAILED DESCRIPTION

[0028] The following will refer to 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 of 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.

[0029] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0030] Reference Figure 1-3 , the utility model provides an embodiment: a plastic shell injection mold with a quickly replaceable male mold, comprising a female mold groove 2, a cooling groove 15 is arranged inside the female mold groove 2, a male module 3 is arranged on the inner wall of the female mold groove 2, an injection tube 8 is passed through the left side of the inner wall of the female mold groove 2, an electromagnetic valve 7 is arranged on the outer wall of the injection tube 8, a water pipe 9 is passed through the left end of the female mold groove 2, a water pump 10 is arranged on the outer wall of the water pipe 9, a water tank 11 is fixedly connected to the other end of the water pipe 9, a spiral water outlet pipe 12 is passed through the top of the water tank 11, and a replacement component is arranged on the top of the male module 3;

[0031] Specifically, the solenoid valve 7 is opened to inject liquefied plastic into the cavity 2 through the injection pipe 8. After it is filled, the solenoid valve 7 is closed and the water pump 10 is started. The cooling water in the water tank 11 is transported to the cooling tank 15 inside the cavity 2 through the water pipe 9 to absorb heat and accelerate the cooling rate of the plastic, so that the plastic molded product is easy to demold and improve production efficiency. The cooling water that absorbs the overheat is input into the return water tank 11 through the spiral water outlet pipe 12 at the bottom of the cooling tank 15 for recycling and resource saving. Since the spiral water outlet pipe 12 is spiral, it can delay the time for the cooling water inside it to enter the water tank 11, and at the same time increase the contact area with the air to facilitate the cooling water to dissipate heat and restore to normal temperature for reuse.

[0032] The replacement assembly includes a mounting block 4, a fixing block 13 is arranged on the inner wall of the mounting block 4, fixing bolts 14 are threadedly connected to the four corners of the top of the fixing block 13, a cylinder 5 is fixedly connected to the top of the fixing block 13, an L-shaped block 6 is fixedly connected to the top of the cylinder 5, and a bottom plate 1 is fixedly connected to the rear side of the bottom end of the L-shaped block 6;

[0033] Specifically, when the convex module 3 needs to be replaced, the fixing bolts 14 are removed from the inside of the mounting block 4 and the fixing block 13 by using a wrench, and then the mounting block 4 is pulled out from the outer wall of the fixing block 13 to disassemble the convex module 3. The convex module 3 that needs to be replaced is then inserted back into the fixing block 13 through the mounting block 4, and the fixing bolts 14 are then installed back into the four corners of the mounting block 4 and the fixing block 13 by using a wrench, so as to realize the rapid replacement of the convex module 3 and ensure that it is firmly fixed and not easy to fall off during the processing.

[0034] The top end of the spiral water outlet pipe 12 is penetrated at the bottom end of the die groove 2, and the end of the water pipe 9 away from the water tank 11 is arranged on the left side of the inner wall of the cooling tank 15, and the end of the spiral water outlet pipe 12 away from the water tank 11 is arranged at the bottom of the inner wall of the cooling tank 15. The cooling water inside the water tank 11 is transported to the cooling tank 15 through the water pipe 9 to cool the product, and the used cooling water inside the cooling tank 15 is transported back to the water tank 11 for recycling and resource saving through the spiral water outlet pipe 12. The outer wall of the water pipe 9 is fixedly connected to the inner wall of the bottom plate 1, and the outer wall of the spiral water outlet pipe 12 is fixedly connected to the inner wall of the bottom plate 1. The water pipe 9 and the spiral water outlet pipe 12 are fixed through the bottom plate 1, the bottom end of the die groove 2 is fixedly connected to the top end of the bottom plate 1, and the die groove 2 is installed through the bottom plate 1, the top of the convex module 3 is fixedly connected to the bottom end of the mounting block 4, and the convex module 3 is installed through the mounting block 4. The outer walls of the four fixing bolts 14 are respectively threadedly connected to the four corners of the top end of the mounting block 4.

[0035] Working principle: The cylinder 5 pushes the fixed block 13 so that the mounting block 4 drives the male module 3 to be stuck in the female mold groove 2, and the solenoid valve 7 is opened to inject liquefied plastic into the female mold groove 2 through the injection pipe 8. After it is filled, the solenoid valve 7 is closed and the water pump 10 is started. The cooling water in the water tank 11 is transported to the cooling tank 15 inside the female mold groove 2 through the water pipe 9. The heat is absorbed to accelerate the cooling rate of the plastic, so that the plastic molded product is easy to demold and improve the production efficiency. The cooling water that absorbs the superheat is input into the return water tank 11 through the spiral water outlet pipe 12 at the bottom of the cooling tank 15 for recycling to save resources. Since the spiral water outlet pipe 12 is a spiral The shape can delay the time for the cooling water inside it to enter the water tank 11, and at the same time increase the contact area with the air to facilitate the heat dissipation of the cooling water to restore the normal temperature for reuse. When the convex module 3 needs to be replaced, the fixing bolts 14 are removed from the inside of the mounting block 4 and the fixing block 13 by a wrench, and then the mounting block 4 is pulled out from the outer wall of the fixing block 13 to disassemble the convex module 3, and then the convex module 3 to be replaced is inserted back into the fixing block 13 through the mounting block 4, and then the fixing bolts 14 are installed back to the four corners of the mounting block 4 and the fixing block 13 by a wrench, so as to realize the rapid replacement of the convex module 3 and ensure that it is firmly fixed and not easy to fall off during the processing.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic housing injection mold with a rapidly replaceable male mold, comprising a female mold groove (2), characterized in that: A cooling groove (15) is arranged inside the die groove (2), a male module (3) is arranged on the inner wall of the die groove (2), an injection tube (8) is passed through the left side of the inner wall of the die groove (2), an electromagnetic valve (7) is arranged on the outer wall of the injection tube (8), a water pipe (9) is passed through the left end of the die groove (2), a water pump (10) is arranged on the outer wall of the water pipe (9), the other end of the water pipe (9) is fixedly connected to a water tank (11), a spiral water outlet pipe (12) is passed through the top end of the water tank (11), and a replacement component is arranged on the top end of the male module (3).

2. The plastic housing injection mold with a quickly replaceable male mold according to claim 1, characterized in that: The replacement assembly comprises a mounting block (4), a fixing block (13) is arranged on the inner wall of the mounting block (4), fixing bolts (14) are threadedly connected to the four corners of the top of the fixing block (13), the top of the fixing block (13) is fixedly connected to a cylinder (5), the top of the cylinder (5) is fixedly connected to an L-shaped block (6), and the rear side of the bottom end of the L-shaped block (6) is fixedly connected to a base plate (1).

3. The plastic housing injection mold with a quickly replaceable male mold according to claim 1, characterized in that: The top end of the spiral water outlet pipe (12) is inserted into the bottom end of the die groove (2).

4. The plastic housing injection mold with a quickly replaceable male mold according to claim 1, characterized in that: The end of the water delivery pipe (9) away from the water tank (11) is arranged on the left side of the inner wall of the cooling tank (15), and the end of the spiral water outlet pipe (12) away from the water tank (11) is arranged at the bottom of the inner wall of the cooling tank (15).

5. The plastic housing injection mold with a quickly replaceable male mold according to claim 2, characterized in that: The outer wall of the water delivery pipe (9) is fixedly connected to the inner wall of the bottom plate (1), and the outer wall of the spiral water outlet pipe (12) is fixedly connected to the inner wall of the bottom plate (1).

6. The plastic housing injection mold with a quickly replaceable male mold according to claim 2, characterized in that: The bottom end of the concave die groove (2) is fixedly connected to the top end of the bottom plate (1).

7. The plastic housing injection mold with a quickly replaceable male mold according to claim 2, characterized in that: The top end of the male module (3) is fixedly connected to the bottom end of the mounting block (4).

8. The plastic housing injection mold with a quickly replaceable male mold according to claim 2, characterized in that: The outer walls of the four fixing bolts (14) are respectively threadedly connected to the four corners of the top end of the mounting block (4).

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