Double-injection injection mold

Abstract

The utility model discloses a double-injection injection mold, and relates to the technical field of injection molds. The double-shot injection mold comprises a box body, the bottom of the box body is fixedly connected with multiple sets of supporting bases, a box door is hinged to the front face of the box body, one end of the box door is rotationally connected with the front face of the box body through a spring hinge, the front face of the box door is fixedly connected with a door handle, and the top of the box body is fixedly connected with an injection molding assembly. A movable mold is slidably connected to the inner wall of the box body, an electric cylinder is fixedly connected to one side of the inner wall of the box body, an output shaft of the electric cylinder is fixedly connected with one side of the movable mold, and a heat dissipation mechanism is arranged in the box body. According to the double-injection injection mold, the electric cylinder is arranged to drive the mold to perform mold closing and mold opening operation, the heat dissipation mechanism is arranged to perform cooling forming work on the mold subjected to injection molding, the cooling efficiency is high, the forming effect is good, a part of working time can be saved, and therefore the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a double-shot injection mold. Background Art

[0002] Injection molds are important process equipment for producing various industrial products. With the rapid development of the plastics industry and the promotion and application of plastic products in aviation, aerospace, electronics, machinery, shipbuilding and automobile industries, injection molds are widely used in various industries. Traditional injection molds are composed of two parts: a movable mold and a fixed mold. The movable mold is installed on the movable mold plate of the injection molding machine, and the fixed mold is installed on the fixed mold plate of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to remove the plastic product.

[0003] In the prior art, double-shot injection molds are manually pried open using mold opening tools during mold closing and mold opening, which can easily cause mold damage. At the same time, since the heat dissipation mechanism lacks a circulation device, the heat dissipation is slow, which slows down work efficiency and increases the cost of use. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a double-shot injection mold, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a double-shot injection mold, including a box body, the bottom of the box body is fixedly connected to multiple groups of support bases, the front of the box body is hinged with a box door, one end of the box door is rotatably connected to the front of the box body through a spring hinge, the front of the box door is fixedly connected to a door handle, the top of the box body is fixedly connected to an injection molding assembly, an injection molding head is arranged inside the injection molding assembly, and an injection molding port is arranged at the bottom of the injection molding head, a movable mold is slidably connected to the inner wall of the box body, an electric cylinder is fixedly connected to one side of the inner wall of the box body, and the output shaft of the electric cylinder is fixedly connected to one side of the movable mold, and a heat dissipation mechanism is arranged inside the box body.

[0005] Preferably, an injection port is fixedly connected to the top plate of the inner wall of the box body, and the bottom of the injection port is communicated with the top interface of the movable mold.

[0006] Preferably, the heat dissipation mechanism includes a cooling component, heat dissipation exhaust holes and an air intake fan, the cooling component is fixedly mounted on the top of the box, the air intake fan is fixedly mounted on the side of the cooling component, and a plurality of heat dissipation exhaust holes are arranged on the surface of the air intake fan.

[0007] Preferably, the heat dissipation mechanism further comprises a fixing frame and a fixed mold, wherein the fixing frame is fixedly mounted on the side of the inner wall of the box body, and one end of the fixing frame away from the box body is fixedly connected with a fixed mold matching the movable mold.

[0008] Preferably, the heat dissipation mechanism further includes a water inlet pipe and a water outlet pipe, the side of the fixed mold is connected to the water inlet pipe, and the side of the fixed mold is connected to the water outlet pipe.

[0009] Preferably, the heat dissipation mechanism further comprises a spiral heat dissipation pipe, one end of the spiral heat dissipation pipe is connected to the water inlet pipe, the other end of the spiral heat dissipation pipe is connected to the water outlet pipe, and the spiral heat dissipation pipe is located at the air intake port of the air intake fan.

[0010] The utility model provides a double-shot injection mold, which has the following beneficial effects:

[0011] (1) The double-shot injection mold is provided with an electric cylinder to drive the mold to perform mold closing and mold opening operations, and a heat dissipation mechanism is provided to cool the mold that has completed injection molding. The cooling efficiency is fast and the molding effect is good, which can save some working time and thus improve work efficiency.

[0012] (2) When the heat dissipation mechanism of the double-shot injection mold performs cooling and molding on the injection mold, a spiral heat dissipation pipe is provided to increase the contact area between the coolant and the air, and an air intake fan is used to increase the air flow rate around the spiral heat dissipation pipe, thereby greatly improving the heat exchange efficiency between the coolant and the air, thereby increasing the cooling and molding speed of the mold and reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model when the box door is opened;

[0015] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0016] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B.

[0017] In the figure: 1. Box body; 2. Support base; 3. Box door; 4. Spring hinge; 5. Door handle; 6. Injection molding assembly; 7. Injection molding head; 8. Injection molding port; 9. Moving mold; 10. Electric cylinder; 11. Cooling assembly; 12. Heat dissipation exhaust hole; 13. Intake fan; 14. Fixed frame; 15. Fixed mold; 16. Water inlet pipe; 17. Water outlet pipe; 18. Spiral heat dissipation pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] See also Figure 1-4 A double-shot injection mold comprises a box body 1, a plurality of supporting bases 2 are fixedly connected to the bottom of the box body 1, a box door 3 is hinged on the front of the box body 1, one end of the box door 3 is rotatably connected to the front of the box body 1 through a spring hinge 4, a door handle 5 is fixedly connected to the front of the box door 3, an injection molding assembly 6 is fixedly connected to the top of the box body 1, an injection molding head 7 is arranged inside the injection molding assembly 6, an injection molding port 8 is arranged at the bottom of the injection molding head 7, a movable mold 9 is slidably connected to the inner wall of the box body 1, an electric cylinder 10 is fixedly connected to one side of the inner wall of the box body 1, an output shaft of the electric cylinder 10 is fixedly connected to one side of the movable mold 9, a heat dissipation mechanism is arranged inside the box body 1, an injection molding port 8 is fixedly connected to the top plate of the inner wall of the box body 1, the bottom of the injection molding port 8 is connected to the top interface of the movable mold 9, and the heat dissipation mechanism comprises a cooling assembly 11 and a heat dissipation exhaust hole 12. and an air intake fan 13, a cooling assembly 11 is fixedly mounted on the top of the housing 1, the air intake fan 13 is fixedly mounted on the side of the cooling assembly 11, a plurality of heat dissipation exhaust holes 12 are arranged on the surface of the air intake fan 13, the heat dissipation mechanism also includes a fixed frame 14 and a fixed mold 15, the fixed frame 14 is fixedly mounted on the side of the inner wall of the housing 1, the end of the fixed frame 14 away from the housing 1 is fixedly connected with a fixed mold 15 matching the movable mold 9, the heat dissipation mechanism also includes a water inlet pipe 16 and a water outlet pipe 17, the side of the fixed mold 15 is connected with the water inlet pipe 16, the side of the fixed mold 15 is connected with the water outlet pipe 17, the heat dissipation mechanism also includes a spiral heat dissipation pipe 18, one end of the spiral heat dissipation pipe 18 is connected with the water inlet pipe 16, the other end of the spiral heat dissipation pipe 18 is connected with the water outlet pipe 17, and the spiral heat dissipation pipe 18 is located at the air intake port of the air intake fan 13. The double-shot injection mold is provided with an electric cylinder 10 to drive the mold to perform mold closing and mold opening operations, and a heat dissipation mechanism is provided to cool and mold the mold that has completed injection molding. The cooling efficiency is fast and the molding effect is good, which can save a part of the working time, thereby improving the working efficiency. When the heat dissipation mechanism of the double-shot injection mold is cooling and molding the injection mold, the spiral heat dissipation pipe 18 is provided to increase the contact area between the coolant and the air, and the air flow speed around the spiral heat dissipation pipe 18 is increased in conjunction with the air suction fan 13, which greatly improves the heat exchange efficiency between the coolant and the air, thereby improving the cooling and molding speed of the mold, thereby reducing the use cost.

[0020] When in use, the contact and sealing relationship between the movable mold 9 and the fixed mold 15 is maintained, and injection is performed into the mold through the injection head 7 and the injection port 8. When the gap between the movable mold 9 and the fixed mold 15 is filled, the injection is stopped. A spiral heating pipe is arranged around the surface of the injection port 8 to maintain the smoothness and quality of the injection process. Then, the water pump of the water outlet pipe 14 is started to make the coolant inside the fixed mold 15 flow to the spiral heat dissipation pipe 18 through the water outlet pipe 14, so that the heat inside the fixed mold 15 is transferred to the spiral heat dissipation pipe 18. When the coolant passes through the spiral heat dissipation pipe 18, due to the large contact area between the spiral heat dissipation pipe 18 and the air, the heat of the spiral heat dissipation pipe 18 will be quickly dissipated into the air and then discharged from the heat dissipation hole 12 under the strong wind of the suction fan 13, so that the coolant inside the spiral heat dissipation pipe 18 is cooled. The cooled coolant is then transported into the fixed mold 15 through the water inlet pipe 16 to complete the cooling and molding of the mold. Then, the movable mold 9 can be driven to move by controlling the electric cylinder 10 to complete the mold opening.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-shot injection mold, comprising a box (1), characterized in that: The bottom of the box body (1) is fixedly connected to a plurality of supporting bases (2); the front of the box body (1) is hingedly connected to a box door (3); one end of the box door (3) is rotatably connected to the front of the box body (1) via a spring hinge (4); the front of the box door (3) is fixedly connected to a door handle (5); the top of the box body (1) is fixedly connected to an injection molding component (6); an injection molding head (7) is provided inside the injection molding component (6); an injection molding port (8) is provided at the bottom of the injection molding head (7); a movable mold (9) is slidably connected to the inner wall of the box body (1); an electric cylinder (10) is fixedly connected to one side of the inner wall of the box body (1); an output shaft of the electric cylinder (10) is fixedly connected to one side of the movable mold (9); and a heat dissipation mechanism is provided inside the box body (1).

2. A double-shot injection mold according to claim 1, characterized in that: An injection port (8) is fixedly connected to the top plate of the inner wall of the box body (1), and the bottom of the injection port (8) is in communication with the top interface of the movable mold (9).

3. A double-shot injection mold according to claim 2, characterized in that: The heat dissipation mechanism comprises a cooling component (11), heat dissipation exhaust holes (12) and an air intake fan (13); the cooling component (11) is fixedly mounted on the top of the box body (1); the air intake fan (13) is fixedly mounted on the side of the cooling component (11); and a plurality of groups of heat dissipation exhaust holes (12) are arranged on the surface of the air intake fan (13).

4. A double-shot injection mold according to claim 3, characterized in that: The heat dissipation mechanism further comprises a fixing frame (14) and a fixed mold (15); the fixing frame (14) is fixedly mounted on the side of the inner wall of the box body (1); one end of the fixing frame (14) away from the box body (1) is fixedly connected to the fixed mold (15) matching the movable mold (9).

5. A double-shot injection mold according to claim 4, characterized in that: The heat dissipation mechanism further comprises a water inlet pipe (16) and a water outlet pipe (17); a side surface of the fixed mold (15) is connected to the water inlet pipe (16); a side surface of the fixed mold (15) is connected to the water outlet pipe (17).

6. A double-shot injection mold according to claim 5, characterized in that: The heat dissipation mechanism further comprises a spiral heat dissipation pipe (18), one end of the spiral heat dissipation pipe (18) being connected to the water inlet pipe (16), the other end of the spiral heat dissipation pipe (18) being connected to the water outlet pipe (17), and the spiral heat dissipation pipe (18) being located at the air intake port of the air intake fan (13).

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