Plastic compression mold capable of preventing plastic from sticking to mold

Abstract

The utility model relates to the technical field of mold processing, in particular to a plastic compression mold for preventing plastic from sticking to the mold, which comprises a worktable, first hydraulic push rods are mounted at four corners of the bottom of the worktable, a second hydraulic push rod is mounted on the left side surface of the bottom of the worktable, and a circular push plate is mounted at the top end of the second hydraulic push rod. A third hydraulic push rod is mounted on the outer wall of the female mold, a connecting block is mounted at the top end of the third hydraulic push rod, a male mold is mounted on the inner side of the connecting block, an annular pipe is mounted in the female mold, and a water inlet pipe is mounted at one end of the annular pipe; a first water pump is installed at one end of the water inlet pipe, a water tank is installed at the bottom of the first water pump, and a second water pump is installed on the top surface of the water tank. According to the improved plastic compression mold, the design of water circulation cooling is adopted, plastic can be rapidly cooled, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to a plastic pressing mold for preventing plastic from sticking to the mold. Background Art

[0002] Mold processing refers to the processing of forming and blanking tools, and also includes shearing dies and die-cutting dies. Usually, the mold consists of two parts: the upper die and the lower die. Mold processing technology includes: cutting die, blanking die, compound die, extrusion die, four-slide die, progressive die, stamping die, die-cutting die, etc.

[0003] In mold processing and production, plastic compression mold is a very commonly used equipment. The plastic compression mold puts the material into the mold cavity, closes the mold, and the plastic fills the cavity under the action of pressure. Then, the product is hardened and shaped through chemical cross-linking or physical cooling.

[0004] In the process of realizing the present invention, the inventors found that the prior art had the following problems: 1. After the existing plastic compression molds are used to compress the plastic, they usually need to be demolded manually, which is time-consuming, labor-intensive, and inefficient; 2. The existing plastic compression molds usually adopt the direction of air drying or self-cooling, which is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0005] The purpose of the present utility model is to provide a plastic compression mold that prevents plastic from sticking to the mold, so as to solve the problems of the plastic compression mold proposed in the above background technology that manual demoulding is required and the cooling efficiency is low. In order to achieve the above purpose, the present utility model provides the following technical scheme: The plastic compression mold that prevents plastic from sticking to the mold includes a workbench, a first hydraulic push rod is installed at the four corners of the bottom of the workbench, a second hydraulic push rod is installed on the left surface of the bottom of the workbench, a circular push plate is installed on the top of the second hydraulic push rod, a female mold is installed on the outer wall of the circular push plate, a third hydraulic push rod is installed on the outer wall of the female mold, a connecting block is installed on the top of the third hydraulic push rod, a male mold is installed on the inner side of the connecting block, and an annular tube is installed inside the female mold. A water inlet pipe is installed at one end of the annular tube, a first water pump is installed at one end of the water inlet pipe, a water tank is installed at the bottom of the first water pump, a second water pump is installed on the top surface of the water tank, one end of the first water outlet pipe is installed on one side of the second water pump, a heat conducting pipe is installed at the other end of the first water outlet pipe, a heat sink is installed on the outer wall of the heat conducting pipe, a protective cover is provided on the outside of the heat sink, motors are installed on the front and rear surfaces of the protective cover, a fan blade is installed at one end of the motor, and a second water outlet pipe is installed at one end of the heat conducting pipe.

[0006] Further preferably, the workbench and the first hydraulic push rod form a lifting structure.

[0007] Further preferably, the second hydraulic push rod and the circular push plate form a telescopic structure.

[0008] Further preferably, the third hydraulic push rod forms a telescopic structure with the male mold through a connecting block.

[0009] Further preferably, a cavity is provided inside the female mold, and the annular tube is installed on the inner wall of the cavity.

[0010] Further preferably, the outer wall surface of the male mold and the inner wall surface of the female mold are both coated with a titanium nitride coating.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, a circular push plate design is adopted. When the finished product is sufficiently cooled, the male mold 8 is separated from the female mold 5. The second hydraulic push rod 3 can push the circular push plate 4 to slowly rise, lift the finished product, and complete the demoulding operation.

[0013] In the utility model, a water circulation cooling design is adopted. By starting the first water pump, the water in the water tank can be injected into the annular tube inside the mother mold through the water inlet pipe. The water in the annular tube quickly absorbs the heat inside the mold and enters the heat conducting pipe through the second water outlet pipe. The heat conducting pipe transfers the heat to the heat sink. The fan blades are driven by a motor to quickly cool the heat sink. Then the second water pump is started to pump the cooled water into the water tank through the first water outlet pipe. Then the first water pump draws the water in the water tank again and transports it to the annular tube through the water inlet pipe, thereby realizing water circulation cooling and effectively cooling and molding the plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the overall cross-section structure of the utility model from a top view;

[0017] Figure 4 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the full cross-section structure of the utility model.

[0019] In the figure: 1. workbench; 2. first hydraulic push rod; 3. second hydraulic push rod; 4. circular push plate; 5. female mold; 6. third hydraulic push rod; 7. connecting block; 8. male mold; 9. annular pipe; 10. water inlet pipe; 11. first water pump; 12. water tank; 13. second water pump; 14. first water outlet pipe; 15. heat pipe; 16. heat sink; 17. protective cover; 18. motor; 19. fan blade; 20. second water outlet pipe. 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5 The utility model provides a technical solution: a plastic compression mold for preventing plastic from sticking to the mold, comprising a workbench 1, a first hydraulic push rod 2 is installed at the four corners of the bottom of the workbench 1, a second hydraulic push rod 3 is installed on the left surface of the bottom of the workbench 1, a circular push plate 4 is installed on the top of the second hydraulic push rod 3, a female mold 5 is installed on the outer wall of the circular push plate 4, a third hydraulic push rod 6 is installed on the outer wall of the female mold 5, a connecting block 7 is installed on the top of the third hydraulic push rod 6, a male mold 8 is installed on the inner side of the connecting block 7, an annular pipe 9 is installed inside the female mold 5, and a water inlet pipe is installed at one end of the annular pipe 9 10, a first water pump 11 is installed at one end of the water inlet pipe 10, a water tank 12 is installed at the bottom of the first water pump 11, a second water pump 13 is installed on the top surface of the water tank 12, one end of a first water outlet pipe 14 is installed on one side of the second water pump 13, a heat pipe 15 is installed at the other end of the first water outlet pipe 14, a heat sink 16 is installed on the outer wall of the heat pipe 15, a protective cover 17 is provided on the outside of the heat sink 16, a motor 18 is installed on the front and rear surfaces of the protective cover 17, a fan blade 19 is installed at one end of the motor 18, and a second water outlet pipe 20 is installed at one end of the heat pipe 15.

[0022] In this embodiment, Figure 1 As shown, the workbench 1 and the first hydraulic push rod 2 form a lifting structure; through the lifting structure, the user can adjust the height of the workbench 1 through the first hydraulic push rod 2 according to production needs, so that the equipment has a height adjustment function.

[0023] In this embodiment, Figure 5 As shown, the second hydraulic push rod 3 and the circular push plate 4 form a telescopic structure; through this telescopic structure, when the mold is cooled and the male mold 8 is separated from the female mold 5, it is convenient for the user to start the second hydraulic push rod 3 to push the circular push plate 4 up, lift the finished product, and assist in the discharge of the finished product.

[0024] In this embodiment, Figure 1 As shown, the third hydraulic push rod 6 forms a telescopic structure with the male mold 8 through the connecting block 7; through this telescopic structure, it is convenient for the user to raise and lower the male mold 8 through the third hydraulic push rod 6, thereby realizing the plastic pressing function of the equipment.

[0025] In this embodiment, Figure 5 As shown, a cavity is provided inside the mother mold 5, and an annular tube 9 is installed on the inner wall of the cavity; through this design, the plastic inside the mother mold 5 can be cooled and quickly formed, making it less likely for the device to have plastic film sticking.

[0026] In this embodiment, Figure 5 As shown, the outer wall surface of the male mold 8 and the inner wall surface of the female mold 5 are coated with a titanium nitride coating; through this design, the titanium nitride coating can not only prevent the plastic from sticking to the mold, but also provide good friction performance and low friction coefficient at higher temperatures, thereby achieving more efficient mechanical properties and effectively extending the service life of the mold.

[0027] The use method and advantages of the utility model: When the plastic compression mold for preventing plastic from sticking to the mold is used, the working process is as follows:

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, first, the height of the workbench 1 is adjusted by the first hydraulic push rod 2 as needed, then a proper amount of water is injected into the water tank 12, the first water pump 11 is started, and the water in the water tank 12 is injected into the annular tube 9 inside the female mold 5 through the water inlet pipe 10, and the third hydraulic push rod 6 is started to lower the male mold 8, and the heated plastic is pressed, and the water in the annular tube 9 quickly absorbs the heat of the plastic and enters the heat pipe 15 through the second water outlet pipe 20, and the heat pipe 15 transfers the heat to the heat sink 16 , the fan blades 19 are driven by the motor 18 to quickly cool the heat sink 16, and then the second water pump 13 is started to pump the cooled water into the water tank 12 through the first water outlet pipe 14, and then the first water pump 11 draws the water in the water tank 12 again, and transports it to the annular pipe 9 through the water inlet pipe 10 to achieve water circulation cooling. After the finished product is fully cooled, the third hydraulic push rod 6 is started to lift the male mold 8, and then the second hydraulic push rod 3 is started to raise the circular push plate 4, so as to lift the cooled finished product and remove the finished product.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastic compression mold for preventing plastic from sticking to the mold, comprising a workbench (1), characterized in that: A first hydraulic push rod (2) is installed at the four corners of the bottom of the workbench (1), a second hydraulic push rod (3) is installed on the left surface of the bottom of the workbench (1), a circular push plate (4) is installed on the top of the second hydraulic push rod (3), a female mold (5) is installed on the outer wall of the circular push plate (4), a third hydraulic push rod (6) is installed on the outer wall of the female mold (5), a connecting block (7) is installed on the top of the third hydraulic push rod (6), a male mold (8) is installed on the inner side of the connecting block (7), an annular tube (9) is installed inside the female mold (5), a water inlet pipe (10) is installed at one end of the annular tube (9), and a first A water pump (11), wherein a water tank (12) is installed at the bottom of the first water pump (11), a second water pump (13) is installed on the top surface of the water tank (12), one end of a first water outlet pipe (14) is installed on one side of the second water pump (13), a heat conducting pipe (15) is installed on the other end of the first water outlet pipe (14), a heat sink (16) is installed on the outer wall of the heat conducting pipe (15), a protective cover (17) is provided on the outside of the heat sink (16), a motor (18) is installed on the front and rear side surfaces of the protective cover (17), a fan blade (19) is installed on one end of the motor (18), and a second water outlet pipe (20) is installed on one end of the heat conducting pipe (15).

2. The plastic compression mold for preventing plastic from sticking to the mold according to claim 1, characterized in that: The workbench (1) and the first hydraulic push rod (2) form a lifting structure.

3. The plastic compression mold for preventing plastic from sticking to the mold according to claim 1, characterized in that: The second hydraulic push rod (3) and the circular push plate (4) form a telescopic structure.

4. The plastic compression mold for preventing plastic from sticking to the mold according to claim 1, characterized in that: The third hydraulic push rod (6) forms a telescopic structure with the male mold (8) through the connecting block (7).

5. The plastic compression mold for preventing plastic from sticking to the mold according to claim 1, characterized in that: The interior of the female mold (5) is provided with a cavity, and the annular tube (9) is installed on the inner wall of the cavity.

6. The plastic compression mold for preventing plastic from sticking to the mold according to claim 1, characterized in that: The outer wall surface of the male mold (8) and the inner wall surface of the female mold (5) are both coated with a titanium nitride coating.

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