Die for gear plastic production

Abstract

The utility model discloses a mould for gear plastic production, which relates to the technical field of moulds and comprises a mould base, a fixing plate is movably mounted on one side of the mould base, arc-shaped plates are slidably mounted at two side end parts of the fixing plate, a side plate is fixedly mounted at the side end part of each arc-shaped plate, and the side plate is fixedly mounted on the side end part of each arc-shaped plate. At least two circulating pipes are fixedly mounted on the inner side of each side plate, and a connecting pipe is fixedly mounted on the outer side of the fixing plate; wherein the circulating pipes are designed to be U-shaped, the multiple circulating pipes are arranged in the side plates, meanwhile, the mold bodies are arranged on the inner sides of the two side plates, by rotating the driving rod, the driving rod exerts downward thrust on the sliding block, the sliding block moves downwards at the top end of the fixing plate, the sliding block drives the two push rods to move, and due to the fact that the push rods are designed to be inclined, the push rods can move downwards. The tail end of the push rod rotates on the outer side of the arc-shaped plate, and meanwhile the push rod exerts pushing force on the arc-shaped plate.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for producing gear plastics. Background Art

[0002] Plastic gears have many advantages over metal gears. Compared with metal gears, they are lighter, have less inertia, and run quieter. Plastic gears usually do not require lubrication, or internal lubricants such as PTFE or silicone oil can be added.

[0003] At present, the existing mold (such as authorization announcement number: CN220219395U) discloses a new type of gear plastic mold. By setting a damper, a spring, a limit frame and a top plate, when the device is used, when the first mold and the second mold are docked and pressed, the second mold moves downward, causing the damper and the spring to contract, which plays a certain buffering role and avoids damage to the mold. Under the action of the damper, spring, limit frame and top plate, the protectiveness of the device is enhanced.

[0004] However, in the process of implementing the above technical solution, it was found that there were at least the following technical problems: Since plastic production requires heating, the mold needs to be heated back and forth and is in a high temperature state for a long time, which affects the service life of the mold. At the same time, the specifications of the gears produced are different, and workers will replace the mold regularly according to demand. During production, the mold lacks a universal cooling device to cool the mold. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a mold for gear plastic production, which solves the technical problem that the mold needs to be heated back and forth due to the need for heating in plastic production, and is in a high temperature state for a long time, which affects the service life of the mold.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A mold for producing gear plastics comprises a mold base, a fixed plate is movably mounted on one side of the mold base, arc plates are slidably mounted on two side ends of the fixed plate, a side plate is fixedly mounted on each side end of the arc plate, at least two circulation pipes are fixedly mounted on the inner side of each side plate, and a connecting pipe is fixedly mounted on the outer side of the fixed plate.

[0010] Preferably: a driving rod is rotatably mounted on the top of the fixed plate, a sliding block is rotatably mounted on the surface of the driving rod, two push rods are rotatably mounted on the outer side of the sliding block, two telescopic tubes are fixedly mounted on the side ends of each of the arc-shaped plates, guide plates are fixedly mounted on the two side ends of the fixed plate, an L-shaped clamping plate is provided at the bottom end of the fixed plate, and two rotating shafts are rotatably mounted on the top of the L-shaped clamping plate.

[0011] (III) Beneficial effects

[0012] 1. Connect the cooling device through the end of the connecting pipe to guide the cooling water into the interior of the fixed plate. The end of the telescopic pipe is connected to the interior of the fixed plate. The cold water is guided into the interior of the side plate through the telescopic pipe. A plurality of circulation pipes are installed on the inner side of the side plate. The cooling water circulates inside the circulation pipe to cool the mold and extend the service life of the mold.

[0013] 2. By rotating the driving rod, the driving rod applies a downward thrust to the slider, and the slider moves downward at the top of the fixed plate. The slider drives the two push rods to move. Since the push rod is designed to be inclined, the end of the push rod rotates on the outside of the arc plate. At the same time, the push rod applies a thrust to the arc plate. Since the arc plate slides along the guide plate, the two arc plates slide in the horizontal direction. The spacing between the two arc plates can be adjusted, and molds of different specifications can be installed to increase versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the mold base of the utility model;

[0016] Figure 2 This is a structural diagram of the circulation pipe of the utility model;

[0017] Figure 3 This is a structural diagram of the side panel of the utility model;

[0018] Figure 4 It is the structural diagram of the L-shaped pallet of the utility model.

[0019] Legend: 1. Die base; 11. Fixed plate; 12. L-shaped clamping plate; 13. Rotating shaft; 14. Push rod; 15. Arc plate; 16. Side plate; 17. Circulation pipe; 18. Telescopic pipe; 19. Slider; 21. Driving rod; 22. Guide plate; 23. Connecting pipe. DETAILED DESCRIPTION

[0020] The embodiment of the present application provides a mold for gear plastic production, which effectively solves the problem that the mold needs to be heated back and forth due to the need for heating during plastic production, and is in a high temperature state for a long time, which affects the service life of the mold. The cooling device is connected to the end of the connecting pipe to introduce cooling water into the interior of the fixed plate. The end of the telescopic pipe is connected to the interior of the fixed plate, and the cold water is introduced into the interior of the side plate through the telescopic pipe. A plurality of circulation pipes are installed on the inner side of the side plate. The cooling water circulates inside the circulation pipe to cool the mold.

[0021] Example

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the mold needs to be heated back and forth due to the need for heating in plastic production, and is in a high temperature state for a long time, which affects the service life of the mold. The overall idea is as follows:

[0023] In view of the problems existing in the prior art, the utility model provides a mold for gear plastic production, including a mold base 1, a fixed plate 11 is movably installed on one side of the mold base 1, and arc plates 15 are slidably installed on the two side ends of the fixed plate 11, and the side ends of each arc plate 15 are fixedly installed with side plates 16, and at least two circulation pipes 17 are fixedly installed on the inner side of each side plate 16, and a connecting pipe 23 is fixedly installed on the outer side of the fixed plate 11. The circulation pipe 17 is a U-shaped design, and a plurality of circulation pipes 17 are mutually arranged inside the side plate 16. At the same time, a mold body is arranged on the inner side of the two side plates 16, and a cooling device is connected through the end of the connecting pipe 23 to introduce cooling water into the interior of the fixed plate 11. The end of the telescopic pipe 18 is connected to the interior of the fixed plate 11, and cold water is introduced into the interior of the side plate 16 through the telescopic pipe 18. A plurality of circulation pipes 17 are installed on the inner side of the side plate 16, and cooling water circulates inside the circulation pipe 17.

[0024] A driving rod 21 is rotatably mounted on the top of the fixed plate 11, and a slider 19 is rotatably mounted on the surface of the driving rod 21. The end of the driving rod 21 rotates inside the fixed plate 11, and a thread is provided on the surface of the driving rod 21. Two push rods 14 are rotatably mounted on the outer side of the slider 19. The two push rods 14 are symmetrically mounted to each other, and the ends of the push rods 14 are rotatably connected to the arc plate 15. Two telescopic tubes 18 are fixedly mounted on the side ends of each arc plate 15. The telescopic tubes 18 are segmented in design and can be telescopic and the ends of the telescopic tubes 18 It is connected to the fixed plate 11, and the two side ends of the fixed plate 11 are fixedly installed with guide plates 22. The bottom end of the fixed plate 11 is provided with an L-shaped clamping plate 12. The top of the L-shaped clamping plate 12 is rotatably installed with two rotating shafts 13. The end of the push rod 14 rotates on the outside of the arc plate 15. At the same time, the push rod 14 applies a thrust to the arc plate 15. Since the arc plate 15 slides along the guide plate 22, the two arc plates 15 slide in the horizontal direction. The spacing between the two arc plates 15 can be adjusted, and molds of different specifications can be installed to increase versatility.

[0025] Working principle:

[0026] The first step is to inject the raw material into the mold, heat the gear, and connect the cooling device through the end of the connecting pipe 23 to introduce cooling water into the fixed plate 11. The end of the telescopic pipe 18 is connected to the fixed plate 11. The cold water is introduced into the side plate 16 through the telescopic pipe 18. A plurality of circulation pipes 17 are installed on the inner side of the side plate 16. The cooling water circulates in the circulation pipe 17 to cool the mold. At the same time, the driving rod 21 is rotated, and the surface of the driving rod 21 is engaged with the inner surface of the slider 19. By rotating the driving rod 21, the driving rod 21 applies a downward thrust to the slider 19, and the slider 19 moves downward at the top of the fixed plate 11. The slider 19 drives the two push rods 14 to move. Since the push rod 14 is designed to be inclined, the end of the push rod 14 rotates on the outside of the arc plate 15. At the same time, the push rod 14 applies a thrust to the arc plate 15. Since the arc plate 15 slides along the guide plate 22, the two arc plates 15 slide in the horizontal direction. The spacing between the two arc plates 15 can be adjusted, and molds of different specifications can be installed to increase versatility.

[0027] In the second step, while the curved plate 15 is moving, the curved plate 15 drives the telescopic tube 18 to move at the side end of the fixed plate 11. The telescopic tube 18 itself is designed in sections and can be telescoped. The telescopic tube 18 follows the movement of the curved plate 15 and telescopes back and forth to ensure the connection between the fixed plate 11 and the curved plate 15, so that the cooling water can flow normally. At the same time, by rotating the two shafts 13, the end of the shaft 13 rotates inside the L-shaped pallet 12, and the shaft 13 is rotated in the opposite direction to rotate upward inside the L-shaped pallet 12, thereby relieving the extrusion on the fixed plate 11 and increasing the distance between the L-shaped pallet 12 and the fixed plate 11. The side plate 16 and the fixed plate 11 can be disassembled and moved separately as a module to increase the flexibility of use.

[0028] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A mold for gear plastic production, comprising a mold base (1), characterized in that: A fixed plate (11) is movably mounted on one side of the mold base (1), arc plates (15) are slidably mounted on two side ends of the fixed plate (11), a side plate (16) is fixedly mounted on the side end of each of the arc plates (15), at least two circulation pipes (17) are fixedly mounted on the inner side of each of the side plates (16), and a connecting pipe (23) is fixedly mounted on the outer side of the fixed plate (11); The circulation pipe (17) is of U-shaped design, and a plurality of circulation pipes (17) are mutually arranged inside the side plates (16), and a mold body is arranged inside the two side plates (16).

2. A gear plastic production mold as claimed in claim 1, characterized in that: A driving rod (21) is rotatably mounted on the top of the fixing plate (11), and a sliding block (19) is rotatably mounted on the surface of the driving rod (21); The end of the driving rod (21) rotates inside the fixing plate (11), and a thread is formed on the surface of the driving rod (21).

3. A gear plastic production mold as claimed in claim 2, characterized in that: Two push rods (14) are rotatably mounted on the outer side of the slider (19); The two push rods (14) are installed symmetrically to each other, and the ends of the push rods (14) are rotatably connected to the arc plate (15).

4. A gear plastic production mold as claimed in claim 1, characterized in that: Two telescopic tubes (18) are fixedly mounted on the side ends of each of the arc-shaped plates (15); The telescopic tube (18) is designed in sections and can be telescopic, and the end of the telescopic tube (18) is connected to the fixed plate (11).

5. A gear plastic production mold as claimed in claim 1, characterized in that: Guide plates (22) are fixedly mounted on both side ends of the fixing plate (11).

6. A gear plastic production mold as claimed in claim 1, characterized in that: The bottom end of the fixed plate (11) is provided with an L-shaped clamping plate (12), and the top end of the L-shaped clamping plate (12) is rotatably mounted with two rotating shafts (13).

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