Injection mold with water cooling structure

Abstract

The utility model discloses an injection mold with a water cooling structure, which comprises an upper mold and a lower mold which correspond to each other, a mounting groove is arranged above the lower mold, a mold core is mounted in the mounting groove, a cooling box is arranged between the mold core and the mounting groove, cooling pipes are distributed and arranged in the cooling box, and the cooling pipes are connected with the upper mold and the lower mold. And a plurality of extrusion springs are arranged between the cooling box and the mounting groove. The mold core and the cooling box are positioned and installed through the first fixing block, the second fixing block and the fixing edge, when the mold core or the cooling pipe reaches the service life, the cooling box and the mold core can be conveniently replaced, and replacement is easy and convenient. The cooling box is ejected upwards by extruding the spring, so that the cooling box is always clung to the bottom of the mold core, and the cooling effect of the injection mold is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a water cooling structure. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. When the injection molding mold is in use, in order to achieve the effect of rapid cooling of the plastic parts, a corresponding built-in circulating water cooling mechanism is generally provided on the injection molding mold.

[0003] The common water cooling mechanism of injection molds currently has the following problems: 1. Existing injection molds usually have pipe grooves opened in the mold to fix the pipe grooves and the water-cooling pipes. When the water-cooling pipes reach the limit of their service life and need to be replaced, it is troublesome to replace them; 2. The cooling pipes are often at the bottom of the mold core, and the cooling pipes will move downward due to their own gravity, causing the top of the cooling pipes to be unable to fit closely to the mold core, reducing the cooling effect. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an injection mold with a water cooling structure to solve the problems that the cooling pipes in the existing injection molds are difficult to disassemble and assemble, and cannot be closely attached to the bottom of the mold core, resulting in poor cooling effect.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an injection mold with a water-cooling structure, comprising an upper mold and a lower mold corresponding to each other, an installation groove is opened on the top of the lower mold, a mold core is installed in the installation groove, a cooling box is arranged between the mold core and the installation groove, cooling pipes are distributed and arranged in the cooling box, and a plurality of extrusion springs are arranged between the cooling box and the installation groove.

[0006] Preferably, a plurality of vertical buffer holes are formed at the inner bottom of the mounting groove, the extrusion spring is installed in the buffer hole, and the top end of the extrusion spring extends out of the buffer hole.

[0007] Preferably, positioning blocks are provided on both sides of the mold core.

[0008] Preferably, a first fixed block and a second fixed block are provided below and above the positioning block, and the outer ends of the first fixed block and the second fixed block extend out of the edge of the lower mold, and the second fixed block is provided with a positioning groove corresponding to the positioning block.

[0009] Preferably, fixed edges are provided on both sides of the lower mold, and the fixed edges are fixedly connected to the first fixed block and the second fixed block by bolts.

[0010] Preferably, the liquid inlet end and the liquid outlet end of the cooling tube extend out of the cooling box.

[0011] Preferably, the cooling box is made of heat-conductive material.

[0012] The utility model provides an injection mold with a water cooling structure, which has the following beneficial effects:

[0013] 1. The utility model positions and installs the mold core and the cooling box through the first fixing block, the second fixing block and the fixing edge. When the mold core or the cooling tube reaches the service life, the cooling box and the mold core can be replaced easily and conveniently.

[0014] 2. The utility model pushes the cooling box upward by squeezing the spring, so that the cooling box is always close to the bottom of the mold core, thereby enhancing the cooling effect of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main internal structure of the utility model;

[0016] Figure 2 for Figure 1 Explosion diagram.

[0017] In the figure:

[0018] 1. Lower mold; 101. Mounting groove; 102. Buffer hole; 103. Fixed edge; 2. Upper mold; 3. Cooling box; 4. Cooling pipe; 5. Extrusion spring; 6. First fixed block; 7. Mold core; 701. Positioning block; 8. Second fixed block; 801. Positioning groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2The utility model provides a technical solution: an injection mold with a water cooling structure, comprising an upper mold 2 and a lower mold 1 corresponding to each other, a mounting groove 101 is opened above the lower mold 1, a mold core 7 is installed in the mounting groove 101, a cooling box 3 is arranged between the mold core 7 and the mounting groove 101, cooling pipes 4 are distributed and arranged in the cooling box 3, and a plurality of extrusion springs 5 ​​are arranged between the cooling box 3 and the mounting groove 101.

[0021] In this embodiment, a plurality of vertical buffer holes 102 are provided at the inner bottom of the mounting groove 101, and the extrusion spring 5 is installed in the buffer hole 102, and the top end of the extrusion spring 5 extends out of the buffer hole 102. In this arrangement, the elastic force of the extrusion spring 5 is used to push the cooling box 3 upward, so that the cooling box 3 is closely attached to the bottom of the mold core 7, and the temperature in the mold core 7 is taken away by the cooling pipe 4.

[0022] In this embodiment, positioning blocks 701 are provided on both sides of the mold core 7. The positioning blocks 701 on both sides of the mold core 7 are limited and fixed by the first fixing block 6 and the second fixing block 8, so as to position and install the mold core 7.

[0023] In this embodiment, the first fixing block 6 and the second fixing block 8 are provided below and above the positioning block 701, and the outer ends of the first fixing block 6 and the second fixing block 8 extend out of the edge of the lower mold 1, and the second fixing block 8 is provided with a positioning groove 801 corresponding to the positioning block 701. In this way, by providing the positioning groove 801, the positioning block 701 on the mold core 7 can be fixed in the positioning groove 801, so that the first fixing block 6 and the second fixing block 8 can be closely attached together, and the first fixing block 6 and the second fixing block 8 and the fixing edge 103 can be conveniently fixed by bolts.

[0024] In this embodiment, fixed edges 103 are provided on both sides of the lower mold 1 , and the fixed edges 103 are fixedly connected to the first fixed block 6 and the second fixed block 8 by bolts.

[0025] In this embodiment, the liquid inlet and outlet of the cooling tube 4 extend out of the cooling box 3. In this way, the liquid inlet and outlet of the cooling tube 4 are arranged on one side of the cooling box 3, which is convenient for connecting the cooling tube 4 with an external cooling brake device. The cooling brake device mentioned in this specification is a common technology in the prior art, including but not limited to a coolant storage tank and a circulation pump. The coolant brake device can promote the coolant to circulate in the cooling tube 4 to enhance the cooling effect.

[0026] In this embodiment, the cooling box 3 is made of a heat-conducting material. As a preferred embodiment, the cooling box 3 can be made of a material with a high thermal conductivity such as iron or copper, which can quickly transfer the high temperature in the mold core 7 to the cooling pipe 4, making it convenient for the cooling pipe 4 to take away the heat, and at the same time, the cooling pipe 4 and the cooling box 3 are in close contact.

[0027] Working principle:

[0028] During specific use, the coolant brake device can promote the coolant to circulate in the cooling pipe 4 to enhance the cooling effect. When the cooling pipe 4 or the core 7 reaches the service life, the bolts restricting the first fixed block 6, the second fixed block 8 and the fixed edge 103 are released, and the second positioning block 701 is removed, and then the core 7 can be removed, and the first fixed block 6 and the cooling box 3 are further removed to facilitate the replacement of the cooling box 3. After the replacement is completed, the above steps are reversed to re-position and install the cooling box 3 and the core 7, which is convenient for disassembly and assembly. At the same time, the elastic force of the extrusion spring 5 is used to push the cooling box 3 upward, so that the cooling box 3 is always close to the bottom of the core 7, thereby enhancing the cooling effect of the injection mold.

[0029] 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. An injection mold with a water cooling structure, comprising an upper mold (2) and a lower mold (1) corresponding to each other, characterized in that: An installation groove (101) is provided above the lower mold (1), a mold core (7) is installed in the installation groove (101), a cooling box (3) is provided between the mold core (7) and the installation groove (101), cooling pipes (4) are distributed and arranged in the cooling box (3), and a plurality of extrusion springs (5) are provided between the cooling box (3) and the installation groove (101).

2. The injection mold with a water cooling structure according to claim 1, characterized in that: The inner bottom of the installation groove (101) is provided with a plurality of vertical buffer holes (102), the extrusion spring (5) is installed in the buffer hole (102), and the top end of the extrusion spring (5) protrudes from the buffer hole (102).

3. The injection mold with a water cooling structure according to claim 1, characterized in that: Positioning blocks (701) are provided on both sides of the mold core (7).

4. The injection mold with a water cooling structure according to claim 3, characterized in that: A first fixing block (6) and a second fixing block (8) are provided below and above the positioning block (701) to match each other, and the outer ends of the first fixing block (6) and the second fixing block (8) extend beyond the edge of the lower mold (1), and a positioning groove (801) corresponding to the positioning block (701) is provided on the second fixing block (8).

5. The injection mold with a water cooling structure according to claim 4, characterized in that: Fixed edges (103) are provided on both sides of the lower mold (1), and the fixed edges (103) are fixedly connected to the first fixed block (6) and the second fixed block (8) by bolts.

6. The injection mold with a water cooling structure according to claim 1, characterized in that: The liquid inlet end and the liquid outlet end of the cooling tube (4) extend out of the cooling box (3).

7. The injection mold with a water cooling structure according to claim 1, characterized in that: The cooling box (3) is made of heat-conducting material.

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