Injection mold convenient to demold

Abstract

The utility model relates to the technical field of injection molding equipment, and discloses an injection mold convenient for demolding, which comprises a workbench, a bracket fixedly connected to the upper surface of the workbench, an injection molding machine body fixedly mounted on the upper surface of the bracket, an injection molding pipe fixedly mounted on the front surface of the injection molding machine body, and a plurality of hydraulic cylinders fixedly mounted on the upper surface of the bracket, through cooperation of the working table, the support, the injection molding machine body, the injection molding pipe, the hydraulic cylinder, the upper mold, the limiting rod, the lower mold, the limiting groove, the push plate, the sliding plate, the sliding rod, the casing pipe, the damping spring, the first notch, the second notch and other structures, a formed product in the mold can be subjected to injection molding in the mold, and the mold can be subjected to injection molding. Horizontal demolding and pushing-out are conducted, a finished product is convenient to take, the product is pushed out while the upper mold is separated from the lower mold, the demolding efficiency is guaranteed, and next injection molding is rapidly conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to an injection molding mold which is easy to demould. 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] Existing injection molds are generally demolded manually, which is very inconvenient and easily causes damage to the plastic parts. Once the molded product is in the mold for a long time, it will cause adhesion to the inner wall of the mold, thus affecting the removal.

[0004] For this reason, we propose an injection mold that is easy to demould. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an injection mold that is easy to demold, overcomes the deficiencies in the prior art, and solves the problem that in the background technology, the existing injection molds are generally demolded manually, which is very inconvenient to operate and easily causes damage to the plastic parts. Once the molded product is in the mold for a long time, it will cause adhesion to the inner wall of the mold, thereby affecting the removal.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold that is easy to demold, comprising a workbench, a bracket is fixedly connected to the upper surface of the workbench, an injection molding machine body is fixedly installed on the upper surface of the bracket, an injection molding tube is fixedly installed on the front surface of the injection molding machine body, a plurality of hydraulic cylinders are fixedly installed on the upper surface of the bracket, an upper mold is fixedly connected to the output ends of the plurality of hydraulic cylinders, two limit rods are fixedly connected to the lower surface of the upper mold, a lower mold is fixedly installed on the upper surface of the workbench, two limit grooves are provided on the upper surface of the lower mold, a push plate is movably connected to the inner surface of the lower mold, a slide plate is fixedly connected to the left and right surfaces of the push plate, two slide rods are fixedly connected to the lower surface of the push plate, two sleeves are fixedly connected to the upper surface of the workbench, damping springs are fixedly connected to the lower inner walls of the two sleeves, a first notch is provided on the lower inner wall of the lower mold, and a second notch is provided on the lower surface of the lower mold.

[0007] Preferably, the front and rear surfaces of the lower mold are fixedly connected with a heat sink, the inner surface of the heat sink is provided with a water trough, the lower surface of the heat sink is provided with a plurality of water outlets, the lower surface of the heat sink is fixedly connected with a plurality of pipes, the upper surface of the workbench is fixedly connected with two shunt pipes, the outer walls of the two shunt pipes are fixedly installed with a first water pump, the outer surface of the first water pump is fixedly inserted with a first water pipe, the upper surface of the workbench is fixedly connected with two cold liquid tanks, the upper surface of the workbench is fixedly connected with two collecting tanks, the outer surfaces of the two collecting tanks are fixedly inserted with a second water pipe, and the outer walls of the two shunt pipes are fixedly installed with a second water pump.

[0008] Preferably, the injection tube is fixedly mounted on the upper surface of the upper mold, the limiting rod and the limiting groove are slidably arranged correspondingly, and the sliding plate and the limiting groove are slidably arranged correspondingly.

[0009] Preferably, the push plate is adapted to correspond to the first notch, the two slide bars are slidably arranged to correspond to the two sleeves, and the top end of the damping spring is fixedly connected to the lower surface of the corresponding side slide bar.

[0010] Preferably, the bottoms of several pipes are fixedly connected to the upper surface of the diversion pipe on the corresponding side, the water tank, water outlet, pipes and diversion pipes are internally interconnected, the other end of the first water pipe is fixedly inserted into the outer surface of the cold liquid tank on the corresponding side, and the other end of the second water pipe is fixedly inserted into the outer surface of the second water pump on the corresponding side.

[0011] Compared with the prior art, the utility model provides an injection mold that is easy to demould, and has the following beneficial effects:

[0012] 1. The injection mold which is easy to demould can demould the molded product in the mold horizontally through the cooperation among the workbench, the bracket, the injection molding machine body, the injection molding tube, the hydraulic cylinder, the upper mold, the limit rod, the lower mold, the limit groove, the push plate, the slide plate, the slide bar, the sleeve, the damping spring, the first notch, the second notch and other structures, so as to facilitate the taking of the finished product, and the product can be pushed out at the same time as the upper mold is separated from the lower mold, so as to ensure the demoulding efficiency and quickly carry out the next injection molding.

[0013] 2. The injection mold that is easy to demold can quickly cool down and dissipate heat for the product in the mold through the coordination of structures such as the heat sink, the water outlet, the pipeline, the diversion pipe, the first water pump, the first water pipe, the cold liquid tank, the collection tank, the second water pipe, and the second water pump, thereby improving the molding speed of the product in the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the workbench and its related structures of the utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the interior of the lower mold and its related structures of the utility model;

[0017] Figure 4 It is a three-dimensional structural diagram of the interior of the casing and its related structures of the utility model;

[0018] Figure 5 This is an enlarged structural diagram of point A of the utility model.

[0019] In the figure: 1. workbench; 2. bracket; 3. injection molding machine body; 4. injection molding tube; 5. hydraulic cylinder; 6. upper mold; 7. limit rod; 8. lower mold; 9. limit groove; 10. push plate; 11. slide plate; 12. slide rod; 13. sleeve; 14. damping spring; 15. first notch; 16. second notch; 17. heat sink; 18. water tank; 19. water outlet; 20. pipeline; 21. shunt pipe; 22. first water pump; 23. first water pipe; 24. cold liquid tank; 25. collection tank; 26. second water pipe; 27. second water pump. DETAILED DESCRIPTION

[0020] The following will be combined with 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 in 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. Example

[0021] See also Figure 1-Figure 4 , an injection mold for easy demoulding, including a workbench 1, a bracket 2 is fixedly connected to the upper surface of the workbench 1, an injection molding machine body 3 is fixedly installed on the upper surface of the bracket 2, an injection molding tube 4 is fixedly installed on the front surface of the injection molding machine body 3, a plurality of hydraulic cylinders 5 are fixedly installed on the upper surface of the bracket 2, an upper mold 6 is fixedly connected to the output end of the plurality of hydraulic cylinders 5, and two limiting rods 7 are fixedly connected to the lower surface of the upper mold 6, a lower mold 8 is fixedly installed on the upper surface of the workbench 1, and two limiting grooves 9 are provided on the upper surface of the lower mold 8, a push plate 10 is movably connected to the inner surface of the lower mold 8, a slide plate 11 is fixedly connected to the left and right surfaces of the push plate 10, and two slide bars 12 are fixedly connected to the lower surface of the push plate 10, two sleeves 13 are fixedly connected to the upper surface of the workbench 1, and the lower inner walls of the two sleeves 13 are fixedly connected to damping springs 14, a first notch 15 is provided on the lower inner wall of the lower mold 8, and a second notch 16 is provided on the lower surface of the lower mold 8.

[0022] Specifically, through the cooperation among structures such as the workbench 1, the bracket 2, the injection molding machine body 3, the injection molding tube 4, the hydraulic cylinder 5, the upper mold 6, the limiting rod 7, the lower mold 8, the limiting groove 9, the push plate 10, the slide plate 11, the slide bar 12, the sleeve 13, the damping spring 14, the first notch 15, and the second notch 16, the molded product in the mold can be demolded and pushed out horizontally, which is convenient for taking out the finished product. In addition, the product can be pushed out at the same time as the upper mold 6 is separated from the lower mold 8, so as to ensure the demolding efficiency and quickly carry out the next injection molding.

[0023] In this embodiment: the injection tube 4 is fixedly mounted on the upper surface of the upper mold 6 , the limiting rod is slidably arranged correspondingly to the limiting groove 9 , and the slide plate 11 is slidably arranged correspondingly to the limiting groove 9 .

[0024] Specifically, the limiting rod slides horizontally through the limiting groove 9, and then the limiting rod presses against the sliding plate 11 in the limiting groove 9 to push the push plate 10 downward to reset.

[0025] In this embodiment, the push plate 10 is adapted to correspond to the first notch 15 , the two slide bars 12 are slidably arranged to correspond to the two sleeves 13 , and the top end of the damping spring 14 is fixedly connected to the lower surface of the corresponding slide bar 12 .

[0026] Specifically, after the push plate 10 loses the pressure of the limit rod 7, the elastic force of the damping spring 14 can push the slide rod 12 to fit the sleeve 13 upward to push the push plate 10 upward horizontally, and cooperate with the push plate 10 to demold and push out the product in the lower mold 8.

[0027] Working principle: When injection molding is required, the workbench 1 is installed in the designated working area, and the upper mold 6 is pushed to merge with the lower mold 8 by the hydraulic cylinder 5 on the bracket 2. As the upper mold 6 moves, the upper mold 6 drives the limiting rod 7 to enter the limiting groove 9 of the lower mold 8, and the sliding plate 11 is pushed by the limiting rod 7 to drive the push plate 10 to move downward, and the push plate 10 presses the two slide bars 12 to move horizontally downward in the sleeve 13, and at the same time squeezes the damping springs 14 in the two sleeves 13. Then, when the upper mold 6 and the lower mold 8 are merged, the limiting rod 7 and the limiting groove 9 are sealed and closed, and after the push plate 10 and the first notch 15 are closed, the slide bar 12 passes through the second notch 16 when moving. The upper mold 6 is moved in the lower mold 8, and then the material is injected from the injection tube 4 into the upper mold 6 and the lower mold 8 through the injection molding machine body 3, and then processed and formed. After the product is formed, the upper mold 6 is driven by the hydraulic cylinder 5 to separate from the lower mold 8. At the same time, the upper mold 6 drives the limit rod 7 to separate from the limit groove 9, and the limit rod 7 separates from the force on the slide plate 11. The push plate 10 pushes the slide bar 12 upward through the elastic force of the damping spring 14 in the bottom sleeve 13, and the push plate 10 is pushed to move horizontally upward through the two slide bars 12. The push plate 10 is separated from the first notch 15, and the molded product is demolded out of the lower mold 8 by the push plate 10, and the molded product can be quickly taken out. Example

[0028] See also Figure 1-Figure 2 , Figure 5 Based on the first embodiment, the present invention provides a technical solution:

[0029] In this embodiment: the front and rear surfaces of the lower mold 8 are fixedly connected with a heat sink 17, the inner surface of the heat sink 17 is provided with a water trough 18, the lower surface of the heat sink 17 is provided with a plurality of water outlets 19, the lower surface of the heat sink 17 is fixedly connected with a plurality of pipes 20, the upper surface of the workbench 1 is fixedly connected with two shunt pipes 21, the outer walls of the two shunt pipes 21 are fixedly installed with a first water pump 22, the outer surface of the first water pump 22 is fixedly inserted with a first water pipe 23, the upper surface of the workbench 1 is fixedly connected with two cold liquid tanks 24, the upper surface of the workbench 1 is fixedly connected with two collecting tanks 25, the outer surfaces of the two collecting tanks 25 are fixedly inserted with second water pipes 26, and the outer walls of the two shunt pipes 21 are fixedly installed with second water pumps 27.

[0030] Specifically, by cooperating among structures such as the heat sink 17, the water tank 18, the water outlet 19, the pipeline 20, the diversion pipe 21, the first water pump 22, the first water pipe 23, the cold liquid tank 24, the collection tank 25, the second water pipe 26, and the second water pump 27, the product in the mold can be quickly cooled and dissipated, thereby improving the molding speed of the product in the mold.

[0031] In this embodiment: the bottoms of several pipes 20 are fixedly connected to the upper surface of the corresponding side diversion pipe 21, the water tank 18, the water outlet 19, the pipes 20, and the diversion pipe 21 are internally interconnected, the other end of the first water pipe 23 is fixedly inserted into the outer surface of the corresponding side cold liquid tank 24, and the other end of the second water pipe 26 is fixedly inserted into the outer surface of the corresponding side second water pump 27.

[0032] Specifically, the cooling liquid can be brought from the pipeline 20 and the water inlet pipe into the water tank 18 of the heat sink 17 through the plurality of shunt pipes 21 , so that the heat sink 17 fits the lower mold 8 to perform cooling and heat removal.

[0033] Working principle: When the workbench 1 is performing injection molding, when the products in the upper and lower molds 8 need to be cooled and molded, the first water pump 22 is turned on to extract the cold liquid in the cold liquid tank 24 through the first water pipe 23, and the cold liquid is transported to the shunt pipe 21. The cold liquid enters the water tank 18 through multiple pipes 20 in conjunction with the water inlet to fill it, and then the heat sink 17 is refrigerated. The heat sinks 17 on both sides of the lower mold 8 are cooled at the same time, so that the heat in the lower mold 8 is cooled and dissipated, and the product is quickly molded to complete the product molding work. When the next product injection molding work is required, the second water pump 27 cooperates with the second water pipe 26 to extract the cold liquid in the shunt pipe 21 and the water tank 18 and transport it to the collection tank 25, thereby extracting the cold liquid in the heat sink 17 to prevent the heat sink 17 from affecting the normal processing and injection molding work in the mold.

[0034] 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 for easy demoulding, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a bracket (2), an injection molding machine body (3) is fixedly mounted on the upper surface of the bracket (2), an injection molding tube (4) is fixedly mounted on the front surface of the injection molding machine body (3), a plurality of hydraulic cylinders (5) are fixedly mounted on the upper surface of the bracket (2), an upper mold (6) is fixedly connected to the output ends of the plurality of hydraulic cylinders (5), two limit rods (7) are fixedly connected to the lower surface of the upper mold (6), a lower mold (8) is fixedly mounted on the upper surface of the workbench (1), and the upper surface of the lower mold (8) is opened. Two limit grooves (9) are provided, the inner surface of the lower mold (8) is movably connected with a push plate (10), the left and right surfaces of the push plate (10) are fixedly connected with a slide plate (11), the lower surface of the push plate (10) is fixedly connected with two slide bars (12), the upper surface of the workbench (1) is fixedly connected with two sleeves (13), the lower inner walls of the two sleeves (13) are fixedly connected with damping springs (14), the lower inner wall of the lower mold (8) is provided with a first notch (15), and the lower surface of the lower mold (8) is provided with a second notch (16).

2. The injection mold for easy demoulding according to claim 1, characterized in that: The front and rear surfaces of the lower mold (8) are fixedly connected to a heat sink (17), the inner surface of the heat sink (17) is provided with a water trough (18), the lower surface of the heat sink (17) is provided with a plurality of water outlets (19), the lower surface of the heat sink (17) is fixedly connected to a plurality of pipes (20), the upper surface of the workbench (1) is fixedly connected to two shunt pipes (21), the outer walls of the two shunt pipes (21) are fixedly mounted with a first water pump (22), the outer surface of the first water pump (22) is fixedly inserted with a first water pipe (23), the upper surface of the workbench (1) is fixedly connected to two cold liquid tanks (24), the upper surface of the workbench (1) is fixedly connected to two collecting tanks (25), the outer surfaces of the two collecting tanks (25) are fixedly inserted with a second water pipe (26), and the outer walls of the two shunt pipes (21) are fixedly mounted with a second water pump (27).

3. The injection mold for easy demoulding according to claim 1, characterized in that: The injection tube (4) is fixedly mounted on the upper surface of the upper mold (6), the limiting rod and the limiting groove (9) are slidably arranged correspondingly, and the sliding plate (11) and the limiting groove (9) are slidably arranged correspondingly.

4. The injection mold for easy demoulding according to claim 1, characterized in that: The push plate (10) and the first notch (15) are arranged to be adapted to correspond, the two slide bars (12) and the two sleeves (13) are arranged to slide correspondingly, and the top end of the damping spring (14) is fixedly connected to the lower surface of the corresponding side slide bar (12).

5. The injection mold for easy demoulding according to claim 2, characterized in that: The bottoms of a plurality of the pipes (20) are fixedly connected to the upper surface of the corresponding side shunt pipe (21); the water tank (18), the water outlet (19), the pipes (20), and the shunt pipe (21) are internally interconnected; the other end of the first water pipe (23) is fixedly inserted into the outer surface of the corresponding side cold liquid tank (24); and the other end of the second water pipe (26) is fixedly inserted into the outer surface of the corresponding side second water pump (27).

Images