Model device for gear production

Abstract

The utility model discloses a model device for gear production, which relates to the technical field of gear production and comprises a lower die, a temperature detector is fixedly mounted on one side of the lower die, a gas cap device is arranged in the lower die, an air inlet pipe is fixedly mounted on the other side of the lower die, and a gas outlet pipe is mounted on the other side of the lower die. And a control valve is fixedly mounted in the middle of the air inlet pipe, a heating pipe is fixedly mounted at the top of the interior of the lower mold, and a heating device is fixedly mounted on one side of the heating pipe. According to the model device for gear production, an upper mold is pushed by an electric push rod to slide downwards on the outer side of a supporting rod through a sliding ring, so that the upper mold is driven to move downwards, the upper mold and a lower mold are attached, injection molding is conducted through an injection molding pipe, and before injection molding, liquid in a heating pipe is driven to be circularly heated through operation of a heating device; therefore, heating treatment of the lower mold is achieved, and the problem that due to the fact that the temperature of the lower mold is too high and the injection molding hole is small, the injection molding hole is solidified and blocked is solved.

Description

Technical Field

[0001] This utility model relates to the field of gear manufacturing technology, specifically to a gear manufacturing model device. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of designs and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates and replacements, and can create complex shapes. Injection molding is suitable for mass production and molding processes involving complex shapes.

[0003] The existing Chinese utility model patent with announcement number CN220883240U discloses an injection mold for producing plastic gears, relating to the field of injection mold technology. This utility model includes a lower mold and an upper mold. The lower mold has an internal mounting groove and a sliding groove at its top. Symmetrically distributed model blocks are slidably engaged within the sliding groove. Plate grooves are located inside the lower mold and on both sides of the upper mold. Sliding sliders are slidably engaged within these plate grooves, with one end of each slider fixedly connected to a model block. A sliding plate is slidably engaged within the mounting groove, and symmetrically distributed square rods are fixedly connected to the top of the sliding plate. A fixed cylinder is fixedly connected to the center of the top of the mounting groove, and an ejector rod is positioned at the top of the fixed cylinder. Through the cooperation of the rodless cylinder, sliding plate, square rod, ejector rod, limiting block, and sliding slider, the problem of directly ejecting the gear from the inner wall of the injection cavity using the ejector rod, causing deformation of the gear workpiece due to incomplete cooling and soft texture, is avoided, further improving production efficiency.

[0004] In the production of plastic gears, injection molds are a common method. Although the aforementioned injection molds for plastic gear production have solved some technical problems through the cooperation of components such as rodless cylinders, slide plates, square rods, ejector rods, limit blocks, and sliders, the existing gear production mold devices still have shortcomings in controlling mold temperature. Due to the small size of the injection hole, the injection material is prone to rapid cooling when injected into the mold, which can lead to blockage. In addition, existing devices are not convenient for rapid cooling of the mold after injection molding. As a result, during demolding, the mold temperature is still high, which can easily cause mold deformation, thus affecting the quality and production efficiency of the plastic gears. Utility Model Content

[0005] The purpose of this invention is to overcome the problems of existing technologies, such as difficulty in controlling mold temperature, which affects injection molding and demolding, and to provide a mold device for gear production.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gear manufacturing mold apparatus, comprising:

[0008] The lower mold has a temperature detector fixedly installed on one side, an air ejector device inside, an air inlet pipe fixedly installed on the other side, a control valve fixedly installed in the middle of the air inlet pipe, a heating pipe fixedly installed at the top inside the lower mold, a heating device fixedly installed on one side of the heating pipe, a cooling pipe fixedly installed at the bottom inside the lower mold, a cooling device fixedly installed on one side of the cooling pipe, and an injection tank fixedly installed at the top of the lower mold.

[0009] In a preferred embodiment, a base plate is fixedly installed at the bottom of the lower mold, and two support plates are fixedly installed on both sides of the base plate. The support plates are structures used for support.

[0010] In a preferred embodiment, a base is fixedly installed at the bottom of the base plate, and four support rods are fixedly installed around the top of the base plate. The support rods are structures used for support.

[0011] In a preferred embodiment, a top plate is fixedly installed on the top of the support rod, and a sliding hole is fixedly opened inside the top plate. The sliding hole is a structure for the injection-molded tube to slide inside it.

[0012] In a preferred embodiment, an electric push column is fixedly installed inside the top plate, and an upper mold is fixedly installed at the bottom of the electric push column. The electric push column is a structure used to push the upper mold.

[0013] In a preferred embodiment, four sliding rings are fixedly installed on both sides of the upper mold, and four injection tubes are fixedly installed around the top of the upper mold. The injection tubes are structures used for injection molding.

[0014] In a preferred embodiment, a diversion pipe is fixedly installed on the top of the injection molding tube, and a conveying pipe is fixedly installed on one side of the diversion pipe, the conveying pipe being a structure for conveying.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This gear production mold device uses an electric push rod to push the upper mold to slide smoothly downwards along the sliding ring on the outside of the support rod. This process moves the upper mold downwards, ensuring a tight fit between the upper and lower molds. During injection molding, the injection tube is responsible for injecting plastic material into the mold. Before injection molding, the heating device starts operating, and the liquid inside the heating tube is circulated and heated under the action of the heating device, thereby effectively heating the lower mold. This heating method effectively prevents the problem of solidification and blockage of the injection hole caused by excessive temperature of the lower mold and small injection hole. In this way, the injection molding effect of the gear production mold device is significantly improved, ensuring production efficiency and product quality.

[0017] 2. After the injection molding process is completed, the operator needs to turn off the heating device in this gear production mold device to prevent the material from continuing to be heated during the cooling process. Then, the cooling device is started, and its operating mechanism drives the cooling liquid in the cooling pipe to circulate. This circulating cooling liquid can quickly cool the lower mold and effectively accelerate the solidification process of the injection molded material. In order to further control the cooling effect, the operator can adjust the opening and closing of the control valve to accurately deliver gas into the internal space of the lower mold through the air inlet pipe. The injection of gas, together with the action of the air ejector device, can lift the finished mold, thereby realizing the demolding process. This process avoids the deformation problem during demolding caused by the high temperature of the injection molded material, and significantly improves the practicality and reliability of the mold device used in gear production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the lower mold in this utility model;

[0020] Figure 3 This is a schematic diagram of the base plate in this utility model;

[0021] Figure 4 This is a schematic diagram of the electric actuator column in this utility model.

[0022] 1. Lower mold; 11. Temperature detector; 12. Air ejector; 13. Air inlet pipe; 14. Control valve; 15. Heating pipe; 16. Heating device; 17. Cooling pipe; 18. Cooling device; 19. Injection tank; 2. Base plate; 21. Support plate; 22. Base; 23. Support rod; 24. Top plate; 25. Sliding hole; 3. Electric push column; 31. Upper mold; 32. Sliding ring; 33. Injection pipe; 34. Diverter pipe; 35. Conveying pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Combined with appendix Figure 1-4 In this embodiment, a gear production mold device includes: a lower mold 1, a temperature detector 11 fixedly installed on one side of the lower mold 1, an air ejector device 12 inside the lower mold 1, an air inlet pipe 13 fixedly installed on the other side of the lower mold 1, a control valve 14 fixedly installed in the middle of the air inlet pipe 13, a heating pipe 15 fixedly installed on the top inside the lower mold 1, a heating device 16 fixedly installed on one side of the heating pipe 15, a cooling pipe 17 fixedly installed on the bottom inside the lower mold 1, a cooling device 18 fixedly installed on one side of the cooling pipe 17, and an injection groove 19 fixedly installed on the top of the lower mold 1.

[0025] Specifically, by activating the heating device 16, the heating device, in conjunction with the mold temperature controller, heats the medium such as heat transfer oil, water, or steam, and then delivers it to the internal flow channel of the mold through a pipeline circulation system. Heat transfer is achieved through thermal convection, and the liquid inside the heating pipe 15 circulates, effectively and rapidly heating the lower mold 1. This heating process helps prevent the injection molding material from solidifying during the injection molding process. At the same time, by activating the cooling device 18, a cooling medium (water, oil, etc.) is injected into the cooling channel through a pre-set metal pipe and water channel by an external pump, forming a circulation loop. Heat is transferred to the medium through the thermal conduction of the mold material, and then carried out to the outside by the flowing medium. The liquid inside the cooling pipe 17 circulates, thereby achieving rapid cooling of the lower mold 1. However, this rapid cooling mechanism is crucial for the cooling process of the mold, ensuring that the mold can quickly reach the appropriate temperature. In addition, by opening the control valve 14, the air inlet pipe 13 can deliver gas into the interior of the lower mold 1, thereby pushing the air ejector device 12 to move upward. The air ejector device 12 drives demolding by gas pressure. Its core process is to inject compressed air (or inert gas) into the sealed air cavity to form a uniform pressure acting on the contact surface between the mold and the part. The gas pressure overcomes the friction, adsorption and vacuum resistance between the part and the mold, pushing the part out of the cavity. The gas diffusion is controlled by the air valve, so that the demolding action is completed quickly and the product is instantly removed. This series of actions work together to achieve rapid demolding of materials, significantly improving the convenience and efficiency of the gear production mold device.

[0026] A base plate 2 is fixedly installed at the bottom of the lower mold 1. Two support plates 21 are fixedly installed on both sides of the base plate 2. A base 22 is fixedly installed at the bottom of the base plate 2. Four support rods 23 are fixedly installed around the top of the base plate 2. A top plate 24 is fixedly installed at the top of the support rods 23. A sliding hole 25 is fixedly opened inside the top plate 24.

[0027] Specifically, the base 22 provides stable support to the bottom of the gear production model device, ensuring the stability and durability of the device. At the same time, the four support rods 23 provide solid support to the top plate 24, further enhancing the structural stability of the entire device. In addition, the design of the sliding hole 25 allows the injection tube 33 to slide smoothly up and down inside, thereby improving production efficiency and ease of operation. The two support plates 21 provide effective support for the heating device 16 and the cooling device 18, ensuring the stable operation of these two key components. The comprehensive use of support rods and support plates significantly improves the stability of the gear production model device, making it more reliable and efficient in the production process.

[0028] An electric push column 3 is fixedly installed inside the top plate 24. An upper mold 31 is fixedly installed at the bottom of the electric push column 3. Four sliding rings 32 are fixedly installed on both sides of the upper mold 31. Four injection tubes 33 are fixedly installed around the top of the upper mold 31. A diversion pipe 34 is fixedly installed on the top of the injection tubes 33. A conveying pipe 35 is fixedly installed on one side of the diversion pipe 34.

[0029] Specifically, the downward movement of the upper mold 31 is controlled by the operation of the electric push column 3 inside the top plate 24. This process is accomplished by the sliding rings 32 on both sides of the upper mold 31 sliding up and down on the outside of the support rod 23. This design not only ensures the stable support of the upper mold 31, but also significantly improves the stability of its sliding process. In addition, the injection material is effectively delivered into the interior of the distribution pipe 34 through the delivery pipe 35. The material is evenly distributed into the four injection pipes 33 in the distribution pipe 34. Finally, the injection pipes 33 inject the material into the interior of the upper mold 31 to complete the injection molding operation, ensuring the quality and precision of the product.

[0030] Working Principle: First, the gear production mold device is supported at its bottom by the base 22. Four support rods 23 on the top four sides of the base plate 2 support the top plate 24. Two support plates 21 on both sides of the base plate 2 support the heating device 16 and the cooling device 18, improving the stability of the gear production mold device. The operation of the electric push column 3 in the middle of the top plate 24 pushes the upper mold 31 downwards. The sliding rings 32 on both sides of the upper mold 31 slide up and down on the outside of the support rods 23, supporting the top plate 24 and improving the stability of the upper mold 31 during movement. This pushes the upper mold 31 and the lower mold 1 to fit together. The operation of the heating device 16 on the top of the right support plate 21 drives the liquid inside the heating pipe 15 to circulate and heat, thus rapidly heating the lower mold 1. The injection material is fed into the distribution pipe 34 through the delivery pipe 35, then into the four injection pipes 33. The injection material is then fed into the upper mold 31 through the injection pipes 33, thus... The material is injected into the mold. The heating device 16 heats the lower mold 1, preventing the injection material from solidifying too quickly and clogging the injection holes when it enters the mold. This facilitates the filling of the mold with the injection material, improving the practicality of the gear production mold device. After injection, the heating device 16 is turned off. The operation of the cooling device 18 on the top of the left support plate 21 drives the liquid inside the cooling pipe 17 to circulate and cool the lower mold 1 quickly. This ensures rapid cooling of the injected material and avoids deformation and bending of the material due to high temperature during demolding. When demolding is required, the control valve 14 is opened, and gas is sent into the lower mold 1 through the air inlet pipe 13. This causes the air ejector device 12 to operate, pushing the injection material out of the injection groove 19, thus achieving rapid demolding. This improves the convenience and practicality of the gear production mold device. The temperature detector 11 allows for real-time monitoring of the temperature of the lower mold 1, enabling control of demolding and injection time.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gear manufacturing model device, characterized in that, The device includes a lower mold (1), a temperature detector (11) fixedly installed on one side of the lower mold (1), an air ejector device (12) inside the lower mold (1), an air inlet pipe (13) fixedly installed on the other side of the lower mold (1), a control valve (14) fixedly installed in the middle of the air inlet pipe (13), a heating pipe (15) fixedly installed on the top inside the lower mold (1), a heating device (16) fixedly installed on one side of the heating pipe (15), a cooling pipe (17) fixedly installed on the bottom inside the lower mold (1), a cooling device (18) fixedly installed on one side of the cooling pipe (17), and an injection groove (19) fixedly installed on the top of the lower mold (1).

2. The gear production model device according to claim 1, characterized in that: The bottom of the lower mold (1) is fixedly installed with a base plate (2), and two support plates (21) are fixedly installed on both sides of the base plate (2).

3. The gear production model device according to claim 2, characterized in that: A base (22) is fixedly installed at the bottom of the base plate (2), and four support rods (23) are fixedly installed around the top of the base plate (2).

4. The gear production model device according to claim 3, characterized in that: A top plate (24) is fixedly installed on the top of the support rod (23), and a sliding hole (25) is fixedly opened inside the top plate (24).

5. The gear production model device according to claim 4, characterized in that: An electric push column (3) is fixedly installed inside the top plate (24), and an upper mold (31) is fixedly installed at the bottom of the electric push column (3).

6. The gear production model device according to claim 5, characterized in that: Four sliding rings (32) are fixedly installed on both sides of the upper mold (31), and four injection tubes (33) are fixedly installed around the top of the upper mold (31).

7. The gear production model device according to claim 6, characterized in that: A diversion pipe (34) is fixedly installed on the top of the injection molding pipe (33), and a delivery pipe (35) is fixedly installed on one side of the diversion pipe (34).

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