Injection mold easy to dissipate heat

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold easy to dissipate heat, which enables a cooling water channel to be cleaned more conveniently during acid pickling and improves the working efficiency of acid pickling of the cooling water channel. Comprising a lower die and an upper die, the lower die and the upper die are connected with a lower die plate and an upper die plate respectively, a lower die core is detachably installed in the lower die, an upper die core is detachably installed in the upper die, the lower die and the upper die are each provided with an annular sinking groove, the front end of the lower die and the front end of the upper die are each provided with a limiting notch, and the limiting notches communicate with the annular sinking grooves. Limiting blocks are arranged on the two sets of cooling cylinders, baffle rings fixedly sleeve the outer walls of the two sets of water inlet pipes and the two sets of water outlet pipes, two sets of transmission rods penetrate through a transmission cavity to be rotationally installed on the lower die and the upper die correspondingly, each set of jacking columns is sleeved with a reset spring, and the two ends of each set of reset spring are connected with a connecting plate and the inner wall of the transmission cavity correspondingly; the four connecting plates make contact with the four cams correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold which is easy to dissipate heat. 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 process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] Injection molds are usually equipped with a cooling system to cool the mold. Currently, a common method of cooling the mold is to open a cooling water channel in the mold and use circulating cooling water to take away the heat of the mold to achieve cooling of the mold.

[0004] Although the existing injection mold cooling form can play a role in dissipating heat and cooling the mold, it has certain disadvantages in the actual application process. After the mold is used for a long time, due to the circulation of cooling water, scale is easily attached to the inside of the mold cooling water channel, which affects the heat dissipation of the mold. In order to ensure a good heat dissipation effect of the mold, it is necessary to regularly pickle the cooling water channel inside the mold. The existing mold cooling water channels are directly arranged inside the mold. During pickling, the mold needs to be opened and transported to the pickling site for pickling. Since the mold is heavy and inconvenient to carry, the pickling process is more troublesome, which affects the work efficiency of pickling of the cooling water channel. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an injection mold which is easy to dissipate heat and can make the pickling and cleaning of cooling water channels more convenient and improve the working efficiency of pickling of cooling water channels.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold that is easy to dissipate heat, including a lower mold, an upper mold, a cooling mechanism and a pushing mechanism, the lower mold and the upper mold are respectively connected to a lower mold plate and an upper mold plate, the lower mold is detachably installed with a lower mold core, and the upper mold is detachably installed with an upper mold core, the cooling mechanism includes two groups of cooling cylinders, annular grooves are provided on the lower mold and the upper mold, and limiting notches are provided at the front ends of the lower mold and the upper mold, the limiting notches are connected to the annular grooves, limiting blocks are provided on the two groups of cooling cylinders, the two groups of cooling cylinders are respectively installed in the two groups of annular grooves through the cooperation of the limiting blocks and the limiting notches, spiral cooling water channels are provided inside the two groups of cooling cylinders, and two symmetrical cooling water channels are provided at the tops of the two groups of cooling cylinders. A group of lifting ring holes, each group of limit blocks is connected to the spiral cooling water channel and is provided with an inlet pipe and an outlet pipe, the outer walls of the two groups of water inlet pipes and the two groups of water outlet pipes are fixedly sleeved with retaining rings, the pushing mechanism includes two groups of transmission rods, the lower mold and the upper mold are each provided with a transmission cavity, the two groups of transmission rods pass through the transmission cavity and are rotatably installed on the lower mold and the upper mold respectively, the left ends of the two groups of transmission rods are connected with knobs, the two groups of transmission rods are fixedly sleeved with two groups of cams, each group of transmission cavity is connected to the annular sink groove and is provided with two groups of sliding holes, the four groups of sliding holes are slidably provided with a top column, the outer side of each group of top columns is connected with a connecting plate, each group of top columns is sleeved with a reset spring, the two ends of each reset spring are respectively connected to the connecting plate and the inner wall of the transmission cavity, and the four groups of connecting plates are respectively in contact with the four groups of cams.

[0008] Preferably, the inner sides of the four groups of top columns are all connected with top plates, and the four groups of top plates are all located at the bottom end of the annular sink.

[0009] Preferably, four groups of guide sleeves are connected to the lower template, and four groups of guide columns are matched with the guide sleeves at the bottom end of the upper template.

[0010] Preferably, sliding sleeves are provided in the four groups of sliding holes between the transmission cavity and the annular sink groove.

[0011] Preferably, anti-slip grooves are provided on the outer walls of the two groups of knobs.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: when the mold dissipates heat, the circulating water pipe can be connected with the water inlet pipe and the water outlet pipe, so that the cooling water enters the spiral cooling water channel inside the cooling cylinder through the water inlet pipe, and then flows out from the water outlet pipe to form a cycle, and through heat conduction, the heat inside the lower mold and the upper mold is taken away. When it is necessary to pickle the inside of the spiral cooling water channel, the staff first removes the water pipe from the water inlet pipe and the water outlet pipe, opens the mold, and then screws the lifting ring into the lifting ring hole on the cooling cylinder, and then rotates the transmission rod through the knob to make the transmission rod drive the cam to rotate. At first, the protruding side of the cam is away from the connecting rod. The connecting plate, after the transmission rod rotates, makes one side of the cam protrusion gradually approach the connecting plate, thereby pushing the connecting plate, so that the connecting plate pushes the ejector column to extend out of the sliding hole, and the reset spring is compressed, so that the ejector column ejects the cooling cylinder from the annular sink groove, and then the cooling cylinder is pulled out through the lifting ring to disengage the limit block from the limit groove, so that the cooling cylinder can be removed and taken to the pickling location for pickling. After pickling, the cooling cylinder can be reinstalled. Through the cooling mechanism and the ejection mechanism, the mold cooling system can be made detachable, so that the pickling and cleaning of the cooling water channel can be made more convenient, thereby improving the work efficiency of pickling of the cooling water channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front side schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the front side cross-sectional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the axonometric structure of the cooling cylinder in the utility model;

[0016] Figure 4 It is a partial enlarged structural schematic diagram of A of the utility model;

[0017] Markings in the attached drawings: 1. lower mold; 2. upper mold; 3. lower mold plate; 4. upper mold plate; 5. lower mold core; 6. upper mold core; 7. cooling cylinder; 8. limit block; 9. spiral cooling water channel; 10. water inlet pipe; 11. water outlet pipe; 12. retaining ring; 13. transmission rod; 14. knob; 15. cam; 16. ejector column; 17. connecting plate; 18. reset spring; 19. ejector plate; 20. guide sleeve; 21. guide column; 22. sliding sleeve; 23. anti-slip pattern. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] Example

[0020] See also Figure 1-Figure 4The utility model is an injection mold that is easy to dissipate heat, including a lower mold 1 and an upper mold 2, the lower mold 1 and the upper mold 2 are respectively connected with a lower mold plate 3 and an upper mold plate 4, a lower mold core 5 is detachably installed inside the lower mold 1, and an upper mold core 6 is detachably installed inside the upper mold 2, an annular sink groove is provided on the lower mold 1 and the upper mold 2, and a limiting notch is provided at the front end of the lower mold 1 and the upper mold 2, and the limiting notch is connected to the annular sink groove, and two groups of cooling cylinders 7 are provided with limiting blocks 8, and the two groups of cooling cylinders 7 are respectively installed in the two groups of annular sink grooves through the cooperation of the limiting blocks 8 and the limiting notches, and the two groups of cooling cylinders 7 are provided with spiral cooling water channels 9, and the tops of the two groups of cooling cylinders 7 are symmetrically provided with two groups of lifting ring holes, and each group of limiting blocks 8 A water inlet pipe 10 and a water outlet pipe 11 are provided which are connected to the spiral cooling water channel 9. A retaining ring 12 is fixedly sleeved on the outer wall of the two groups of water inlet pipes 10 and the two groups of water outlet pipes 11. A transmission cavity is provided inside the lower mold 1 and the upper mold 2. Two groups of transmission rods 13 pass through the transmission cavity and are rotatably installed on the lower mold 1 and the upper mold 2 respectively. The left ends of the two groups of transmission rods 13 are connected with knobs 14. Two groups of cams 15 are fixedly sleeved on the two groups of transmission rods 13. Two groups of sliding holes are provided between each group of transmission cavities and the annular sink grooves. Top columns 16 are slidably provided on the four groups of sliding holes. A connecting plate 17 is connected to the outer side of each group of top columns 16. A reset spring 18 is sleeved on each group of top columns 16. The two ends of each group of reset springs 18 are respectively connected to the connecting plate 17 and The inner wall of the transmission cavity is connected, and the four groups of connecting plates 17 are in contact with the four groups of cams 15 respectively; when the mold is dissipating heat, the circulating water pipe can be connected with the water inlet pipe 10 and the water outlet pipe 11, so that the cooling water enters the spiral cooling water channel 9 inside the cooling cylinder 7 through the water inlet pipe 10, and then flows out from the water outlet pipe 11 to form a cycle, and through heat conduction, the heat inside the lower mold 1 and the upper mold 2 is taken away. When it is necessary to pickle the inside of the spiral cooling water channel 9, the staff first removes the water pipe from the water inlet pipe 10 and the water outlet pipe 11, opens the mold, and then screws the lifting ring into the lifting ring hole on the cooling cylinder 7, and then rotates the transmission rod 13 through the knob 14, so that the transmission rod 13 drives the cam 15 to rotate. At first, the cam 15 convex One side of the cam 15 moves away from the connecting plate 17, and after the transmission rod 13 rotates, the protruding side of the cam 15 gradually approaches the connecting plate 17, thereby pushing the connecting plate 17, so that the connecting plate 17 pushes the top column 16 to extend out of the sliding hole, and the return spring 18 is compressed, so that the top column 16 pushes the cooling cylinder 7 out of the annular sink groove, and then the cooling cylinder 7 is pulled out through the hanging ring, so that the limit block 8 is disengaged from the limit groove, and the cooling cylinder 7 can be removed and taken to the pickling location for pickling. After pickling, the cooling cylinder 7 can be reinstalled. Through the cooling mechanism and the pushing mechanism, the mold cooling system can be made detachable, so that the pickling and cleaning of the cooling water channel can be made more convenient, and the work efficiency of the pickling of the cooling water channel can be improved.

[0021] See also Figure 2The inner sides of the four groups of top columns 16 are all connected with top plates 19, and the four groups of top plates 19 are all located at the bottom end of the annular trough; by providing the top plate 19, the contact surface with the cooling cylinder 7 can be increased, making it easier for the top column 16 to push the cooling cylinder 7 out of the annular trough.

[0022] See also Figure 1 The lower mold plate 3 is connected with four sets of guide sleeves 20, and the bottom of the upper mold plate 4 is matched with the guide sleeves 20 and provided with four sets of guide columns 21; by providing the guide sleeves 20 and the guide columns 21, the opening and closing of the lower mold 1 and the upper mold 2 can be guided.

[0023] See also Figure 4 Sliding sleeves 22 are provided in the four groups of sliding holes between the transmission cavity and the annular sink groove; by providing the sliding sleeves 22, the sliding of the top column 16 on the sliding hole can be smoother.

[0024] See also Figure 1 The outer walls of the two sets of knobs 14 are both provided with anti-slip grooves 23; by providing the anti-slip grooves 23, the friction of the outer wall of the knob 14 can be increased to avoid the hand slipping when turning the knob 14.

[0025] The utility model is an injection mold that is easy to dissipate heat. When the mold dissipates heat, the circulating water pipe can be connected to the water inlet pipe 10 and the water outlet pipe 11, so that the cooling water enters the spiral cooling water channel 9 inside the cooling cylinder 7 through the water inlet pipe 10, and then flows out from the water outlet pipe 11 to form a cycle. Through heat conduction, the heat inside the lower mold 1 and the upper mold 2 is taken away. When it is necessary to pickle the inside of the spiral cooling water channel 9, the staff first removes the water pipe from the water inlet pipe 10 and the water outlet pipe 11, opens the mold, and then screws the lifting ring into the lifting ring hole on the cooling cylinder 7, and then rotates the transmission knob 14 to Rod 13, so that the transmission rod 13 drives the cam 15 to rotate. At first, the protruding side of the cam 15 is away from the connecting plate 17. After the transmission rod 13 rotates, the protruding side of the cam 15 gradually approaches the connecting plate 17, thereby pushing the connecting plate 17, so that the connecting plate 17 pushes the top column 16 to extend out of the sliding hole, and the return spring 18 is compressed, so that the top column 16 pushes the cooling cylinder 7 out of the annular sink groove, and then the cooling cylinder 7 is pulled out through the lifting ring, so that the limit block 8 is disengaged from the limit groove, and the cooling cylinder 7 can be removed and taken to the pickling location for pickling. After pickling, the cooling cylinder 7 can be reinstalled.

[0026] The utility model is an injection mold that is easy to dissipate heat. Its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as it can achieve its beneficial effects; technicians in this industry only need to install and operate it according to the accompanying instruction manual.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An injection mold that is easy to dissipate heat, comprising a lower mold (1) and an upper mold (2), characterized in that: It also includes a cooling mechanism and a pushing mechanism; A lower mold (1) and an upper mold (2), wherein the lower mold (1) and the upper mold (2) are respectively connected to a lower mold plate (3) and an upper mold plate (4), a lower mold core (5) is detachably installed inside the lower mold (1), and an upper mold core (6) is detachably installed inside the upper mold (2); A cooling mechanism, the cooling mechanism comprising two groups of cooling cylinders (7), annular grooves are provided on the lower mold (1) and the upper mold (2), and limiting notches are provided at the front ends of the lower mold (1) and the upper mold (2), the limiting notches and the annular grooves are connected, limiting blocks (8) are provided on the two groups of cooling cylinders (7), the two groups of cooling cylinders (7) are respectively installed in the two groups of annular grooves through the cooperation of the limiting blocks (8) and the limiting notches, the two groups of cooling cylinders (7) are provided with spiral cooling water channels (9), the top ends of the two groups of cooling cylinders (7) are symmetrically provided with two groups of hanging ring holes, each group of limiting blocks (8) is connected with the spiral cooling water channel (9) and is provided with a water inlet pipe (10) and a water outlet pipe (11), and the outer walls of the two groups of water inlet pipes (10) and the two groups of water outlet pipes (11) are fixedly sleeved with retaining rings (12); The push mechanism comprises two groups of transmission rods (13), a transmission cavity is provided inside the lower mold (1) and the upper mold (2), the two groups of transmission rods (13) pass through the transmission cavity and are rotatably installed on the lower mold (1) and the upper mold (2), the left ends of the two groups of transmission rods (13) are connected with knobs (14), two groups of cams (15) are fixedly sleeved on the two groups of transmission rods (13), two groups of sliding holes are provided between each group of transmission cavity and the annular sink groove, and a push column (16) is slidably provided on the four groups of sliding holes, the outer side of each group of push columns (16) is connected with a connecting plate (17), and each group of push columns (16) is sleeved with a reset spring (18), and the two ends of each group of reset springs (18) are respectively connected with the connecting plate (17) and the inner wall of the transmission cavity, and the four groups of connecting plates (17) are respectively in contact with the four groups of cams (15).

2. An injection mold that is easy to dissipate heat as claimed in claim 1, characterized in that: The inner sides of the four groups of top columns (16) are all connected to top plates (19), and the four groups of top plates (19) are all located at the bottom end of the annular sink.

3. An injection mold that is easy to dissipate heat as claimed in claim 2, characterized in that: The lower template (3) is connected with four groups of guide sleeves (20), and the bottom end of the upper template (4) is matched with the guide sleeves (20) and is provided with four groups of guide columns (21).

4. An injection mold that is easy to dissipate heat as claimed in claim 3, characterized in that: Sliding sleeves (22) are arranged in the four groups of sliding holes between the transmission cavity and the annular sink groove.

5. An injection mold that is easy to dissipate heat as claimed in claim 4, characterized in that: Anti-slip grooves (23) are provided on the outer walls of the two groups of knobs (14).

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