Die

Abstract

The utility model relates to the technical field of injection molds, and discloses a mold. Comprising a material opening, a liquid injection module, a first gas injection module, a second gas injection module, a driving module and an ejector pin, the material opening is used for injecting molten plastic, the liquid injection module is used for injecting cooling liquid, the first gas injection module is tightly attached to the lower surface of the liquid injection module, the first gas injection module is used for injecting gas, and the driving module is attached to the lower surface of the first gas injection module. The driving module is used for driving the internal structure of the mold to rotate, and the second gas injection module is tightly attached to the lower surface of the driving module and used for injecting gas to push the ejector pin to jack. Through the action of the driving module and the ejector pin, the thread product can be demolded smoothly, the integrity of the product during demolding is ensured, meanwhile, a chain structure of a traditional mold is not used any more, the operation stability of a transmission structure is ensured, and therefore the manual maintenance cost is reduced, and the product quality is improved.

Description

Technical Field

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

[0002] The thread-removing mold for injection molding is a mold specially used for producing plastic products with thread features. This type of mold is widely used in the production of products such as bottle caps, threaded interfaces, and threaded connectors. During the injection molding process, the plastic material is heated and melted and injected into the mold cavity. The plastic is solidified through the cooling system of the mold to form a predetermined shape. The design and manufacture of this mold requires extremely high precision because the details of the thread structure directly affect the functionality and appearance quality of the product. With the increasing market demand for plastic products, traditional molds cannot directly demold products from the mold because the presence of threads will cause the product to be damaged or unable to be smoothly removed from the mold during demolding. In addition, the transmission structure of traditional molds uses chains, and the chains will overflow lubricating oil. The overflow of lubricating oil will cause unnecessary resistance to mechanical parts, reduce the operating efficiency of the equipment, affect the production of the mold, and increase the difficulty and cost of subsequent maintenance.

[0003] Therefore, it is necessary to design a mold to solve the problems existing in the current technology. Utility Model Content

[0004] In view of this, the utility model proposes a mold, which aims to solve the use problems of existing thread stripping molds, so as to smoothly demould the threaded products and ensure that the products maintain integrity during demoulding. At the same time, the chain structure of the traditional mold is no longer used, which ensures the stability of the transmission structure operation, thereby reducing the cost of manual maintenance and improving the quality of the product.

[0005] The utility model provides a mold, comprising:

[0006] A material port, a liquid injection module, a first gas injection module, a second gas injection module, a drive module and an ejector pin;

[0007] The material port is used to inject molten plastic;

[0008] The liquid injection module is used to inject coolant;

[0009] The first gas injection module is tightly fitted to the lower surface of the liquid injection module, and the first gas injection module is used to inject gas;

[0010] The driving module is attached to the lower surface of the first gas injection module, and the driving module is used to drive the internal structure of the mold to rotate;

[0011] The second gas injection module is tightly fitted to the lower surface of the driving module, and the second gas injection module is used to inject gas to push the ejector pin to rise.

[0012] Furthermore, the driving module includes:

[0013] a fixing mechanism, an oil cylinder motor, a first locking mechanism, a rack, a driving unit, and a driving module housing;

[0014] The fixing mechanism is of a cuboid structure. A circular opening is provided in the middle of the fixing mechanism, and an inward cut is provided at the bottom of the opening. The fixing mechanism is closely attached to the driving module housing;

[0015] The oil cylinder motor is embedded in the opening, and the opening is used to fix the oil cylinder motor;

[0016] The rack penetrates through the driving module housing, and a groove that fits with the first locking mechanism is provided at the upper part of the rack;

[0017] The lower surface of the first locking mechanism fits with the groove, and the first locking mechanism is used to lock the rack.

[0018] Furthermore, the driving unit includes:

[0019] a driving wheel, a transmission wheel, a first driven wheel set, a second driven wheel set, and a sleeve;

[0020] The driving wheel is tightly fixed to the upper part of the oil cylinder motor, and the driving wheel is used to drive the transmission wheel to rotate;

[0021] The lower gear of the transmission wheel meshes with the rack, and the upper gear of the transmission wheel meshes with the driving wheel and the first driven wheel set;

[0022] The driving unit is provided with a plurality of sleeves. The lower part of the sleeve is tightly connected to the first driven wheel set, and the first driven wheel set meshes with the second driven wheel set.

[0023] Furthermore, a kind of mold includes:

[0024] A third driven wheel set is provided at the upper part of the sleeve, and the third driven wheel set is tightly connected to the upper part of the sleeve;

[0025] A second locking mechanism is arranged inside the driving module, and the second locking mechanism meshes with the third driven wheel set.

[0026] Furthermore, the first air injection module includes:

[0027] a first air injection module housing, and a first air injection hole;

[0028] The first air injection module housing is provided with a plurality of first air injection holes, and the first air injection holes are embedded in the first air injection module housing.

[0029] Further, the second gas injection module includes:

[0030] A second gas injection module housing, a second gas injection hole, a front panel, and a bottom panel;

[0031] The second gas injection module housing is provided with a plurality of second gas injection holes, and the second gas injection holes are embedded in the second gas injection module housing;

[0032] The lower surface of the front panel is closely attached to the upper surface of the bottom panel;

[0033] The sides of the front panel and the bottom panel are closely attached to the inner wall of the second gas injection module housing.

[0034] Further, the ejector pin includes:

[0035] A mold core is provided at the upper part of the sleeve, the upper part of the ejector pin is attached to the mold core, the ejector pin is embedded in the sleeve, and the ejector pin is used to lift the mold core.

[0036] Further, the ejector pin includes:

[0037] The lower part of the ejector pin is embedded in the front panel and the bottom panel, and the lower part of the ejector pin is fixedly connected to the second gas injection hole.

[0038] Further, the liquid injection module includes:

[0039] A liquid injection module housing, a liquid injection hole;

[0040] The liquid injection module housing is provided with a plurality of liquid injection holes, and the liquid injection holes are embedded in the liquid injection module housing;

[0041] An upper top plate is provided at the upper part of the liquid injection module, and the upper top plate is closely attached to the upper surface of the liquid injection module;

[0042] The material inlet is embedded in the upper top plate and the liquid injection module;

[0043] A plurality of nozzles are provided at the lower part of the material inlet, and the nozzles are closely attached to the lower surface of the material inlet.

[0044] Further, a mold includes:

[0045] A lower bottom plate is provided at the lower part of the second gas injection module housing, and the lower bottom plate is closely attached to the lower surface of the bottom panel.

[0046] Compared with the prior art, the utility model relates to the technical field of injection molds, and discloses a mold. The utility model includes a material port, a liquid injection module, a first gas injection module, a second gas injection module, a driving module and an ejector pin. The material port is used to inject molten plastic, the liquid injection module is used to inject coolant, the first gas injection module is closely fitted with the lower surface of the liquid injection module, the first gas injection module is used to inject gas, the driving module is closely fitted with the lower surface of the first gas injection module, the driving module is used to drive the internal structure of the mold to rotate, the second gas injection module is closely fitted with the lower surface of the driving module, and the second gas injection module is used to inject gas to push the ejector pin to lift. The liquid injection module injects coolant into the interior of its mold to solidify the molten plastic and form a predetermined shape. The first and second gas injection modules inject air into the interior of the mold to ensure the circulation of the internal structure and lift the ejector pin, so that the product can be demolded smoothly. During the demolding process, the driving module drives the driving wheel of the mold to rotate, so that the thread is disengaged, thereby ensuring that the product maintains integrity during demolding. At the same time, the chain structure of the traditional mold is no longer used, which ensures the stability of the transmission structure operation, thereby reducing the cost of manual maintenance and improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0048] Figure 1 A schematic diagram of a mold structure provided for an embodiment of the utility model;

[0049] Figure 2 A schematic diagram of the back structure of a mold provided by an embodiment of the utility model;

[0050] Figure 3 A schematic structural diagram of a mold provided by an embodiment of the utility model without an upper top plate, a liquid injection module, a first gas injection module and a driving module housing;

[0051] Figure 4 A schematic diagram of the back structure of a mold provided by an embodiment of the utility model without the upper top plate, the liquid injection module, the first gas injection module and the driving module housing;

[0052] Figure 5 A schematic structural diagram of a mold provided by an embodiment of the utility model without an upper top plate, a material port, a liquid injection module, a first gas injection module and a driving module housing;

[0053] Figure 6 A schematic diagram of a mold fixing mechanism provided in an embodiment of the utility model;

[0054] In the figure: 1. Material inlet; 2. Liquid injection module; 3. First gas injection module; 4. Driving module; 5. Fixing mechanism; 6. Oil cylinder motor; 7. First locking mechanism; 8. Rack; 9. Second gas injection module; 10. Filling nozzle; 11. Driving wheel; 12. Transmission wheel; 13. First driven wheel set; 14. Second driven wheel set; 15. Third driven wheel set; 16. Second locking mechanism; 17. Thimble; 18. Sleeve; 19. Front panel; 20. Bottom panel; 21. Upper top plate; 22. Lower bottom plate; 23. Groove; 24. Opening; 25. Notch. Detailed implementation manners

[0055] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0056] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0057] The terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0058] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0059] Refer to Figure 1-2 As shown, this embodiment provides a mold, including:

[0060] The material port 1, the liquid injection module 2, the first gas injection module 3, the second gas injection module 9, the driving module 4 and the ejector pin 17. The material port 1 is used to inject molten plastic, the liquid injection module 2 is used to inject coolant, the first gas injection module 3 is closely attached to the lower surface of the liquid injection module 2, the first gas injection module 3 is used to inject gas, the driving module 4 is closely attached to the lower surface of the first gas injection module 3, the driving module 4 is used to drive the internal structure of the mold to rotate, the second gas injection module 9 is closely attached to the lower surface of the driving module 4, and the second gas injection module 9 is used to inject gas to push the ejector pin 17 to lift.

[0061] Specifically, the material port 1 is a key part of the mold, which is used to inject the molten plastic material into the mold cavity. The molten plastic is injected into the mold cavity through the material port 1 and forms a predetermined shape there. The liquid injection module 2, whose main function is to inject coolant, is usually cooled immediately after the plastic is molded. The flow rate, temperature and injection time of the coolant need to be precisely controlled to ensure the mechanical properties and dimensional stability of the product. The first gas injection module 3 is located below the liquid injection module 2, and the two are in close contact. The function of the first gas injection module 3 is to inject gas into the mold cavity, thereby reducing the amount of material and reducing the weight of the product. The driving module 4 is fitted with the lower surface of the first gas injection module 3, and its main function is to drive the internal structure of the mold to rotate. The design and operation of the driving module 4 need to be very precise to ensure that the movable parts inside the mold can move according to the predetermined path or angle. The second gas injection module 9 is closely fitted to the lower surface of the driving module 4, and is responsible for injecting gas into a specific area in the mold. Unlike the first gas injection module 3, the main function of the second gas injection module 9 is to provide a driving force for pushing the ejector pin 17 to lift. The ejector pin 17 is usually used to eject the product from the mold after molding. By injecting gas, the ejector pin 17 can eject the product from the mold cavity with appropriate force and speed to ensure that the product leaves the mold intact and without damage.

[0062] It is understandable that this modular mold achieves efficient and stable production through close cooperation and precise control between modules. The material port 1 is responsible for the precise injection of molten plastic, the liquid injection module 2 and the first gas injection module 3 respectively manage the cooling and gas injection, the drive module 4 ensures the necessary movement of the internal structure of the mold, and the second gas injection module 9 and the ejector 17 ensure the smooth demoulding of the product. The flexibility and precision of this design make it advantageous in the production of complex-shaped threaded structures.

[0063] See also Figure 3 As shown, in some examples of the present application, a driving module 4 of a mold includes:

[0064] Fixing mechanism 5, oil cylinder motor 6, first locking mechanism 7, rack 8, drive unit and the housing of drive module 4. The fixing mechanism 5 is in a cuboid structure. There is a circular opening 24 in the middle of the fixing mechanism 5. An inward cut 25 is provided at the bottom of the opening 24. The fixing mechanism 5 closely fits the housing of drive module 4. The oil cylinder motor 6 is embedded in the opening 24. The opening 24 is used to fix the oil cylinder motor 6. The rack 8 penetrates the housing of drive module 4. A groove 23 that fits with the first locking mechanism 7 is provided on the upper part of the rack 8. The lower surface of the first locking mechanism 7 fits the groove 23. The first locking mechanism 7 is used to lock the rack 8.

[0065] Specifically, the fixing mechanism 5 is an important basic part of the device. The fixing mechanism 5 is designed as a cuboid structure, which provides stable support and can withstand various forces and vibrations during the operation of the equipment. There is a circular opening 24 in the middle of the cuboid structure. This opening 24 is used to accommodate and fix the oil cylinder motor 6. To enhance the fixing effect, an inward cut 25 is also provided at the bottom of the opening 24, which can further lock the oil cylinder motor 6 and prevent it from shifting or loosening during operation. The oil cylinder motor 6 is embedded in the opening 24 of the fixing mechanism 5. The precise fixing of the motor is crucial for the stable operation of the entire mold. The oil cylinder motor 6 converts the driving force into mechanical motion by hydraulic pressure. The housing of drive module 4 closely fits the fixing mechanism 5, playing a role in protecting and supporting the internal components. The housing of drive module 4 not only provides a closed and safe environment for the internal components but also prevents external dust and impurities from entering, thus extending the service life of the equipment. In addition, the close fit between the housing of drive module 4 and the fixing mechanism 5 ensures the structural stability of the mold. The rack 8 is a key component of drive module 4 and penetrates the entire housing of drive module 4. The rack 8 is used to convert the rotational motion of the gear into linear motion. A groove 23 that fits with the first locking mechanism 7 is provided on the upper part of the rack 8. The design of this groove 23 ensures the precise fixing of the rack 8 and the first locking mechanism 7. The first locking mechanism 7 fits on the groove 23 of the rack 8 and is used to lock the rack 8 to prevent it from moving under inappropriate circumstances. The drive unit is the core part of drive module 4 and is responsible for transmitting the power of the motor to the rack 8 to achieve the required mechanical motion.

[0066] It can be understood that, compared with the chain used in traditional molds, the meshing accuracy between the rack 8 and the gear is higher, enabling more precise linear motion control. During the movement of the chain, the accuracy will decrease due to the cumulative error of the chain pitch. In addition, the rack 8 is made of high-strength materials and can withstand large loads. The rack 8 allows stable operation under relatively large pressures, which enables the rack 8 to be applicable to various working environments. When the chain bears a load, it is prone to deformation or elongation, affecting its service life and performance. Moreover, the wear rate of the rack 8 and the gear is slower. They usually work under high-precision machining conditions. Compared with the chain, the rack 8 has lower maintenance requirements and is not easily prone to failures due to chain wear or breakage. The design and operation method of the rack 8 enable it to provide a smooth and non-pulsating linear motion. The chain will have gaps and vibrations due to the connection method of the chain links. Especially during high-speed operation, this kind of vibration will affect the stability of the system. The rack 8 drive does not have the common slack problem in the chain, so it does not require regular tensioning maintenance and will not spill lubricating oil. Generally speaking, the rack 8 has obvious advantages over the chain in molds that require high precision and low maintenance.

[0067] Refer to Figure 4-6 As shown, in some examples of the present application, a drive unit of a mold includes:

[0068] A driving wheel 11, a transmission wheel 12, a first driven wheel set 13, a second driven wheel set 14, and a sleeve 18. The driving wheel 11 is tightly fixed to the upper part of the oil cylinder motor 6. The driving wheel 11 is used to drive the transmission wheel 12 to rotate. The lower gear of the transmission wheel 12 meshes with the rack 8. The upper gear of the transmission wheel 12 meshes with the driving wheel 11 and the first driven wheel set 13. The drive unit is provided with a plurality of sleeves 18. The lower part of the sleeve 18 is tightly connected to the first driven wheel set 13. The first driven wheel set 13 meshes with the second driven wheel set 14.

[0069] Specifically, the driving wheel 11 is tightly fixed to the upper part of the oil cylinder motor 6 and serves as the power source of the entire mold. The oil cylinder motor 6 drives the entire transmission structure through the driving wheel 11. The transmission wheel 12 transmits the rotational motion of the driving wheel 11 to the lower gear through meshing with the driving wheel 11. The lower gear of the transmission wheel 12 meshes with the rack 8 to achieve the conversion of linear motion. The drive unit is provided with a plurality of sleeves 18. The number of sleeves 18 is preferably 4. The lower part of each sleeve 18 is tightly connected to the first driven wheel set 13. The first driven wheel set 13 meshes with the second driven wheel set 14 and the transmission wheel 12, thereby further transmitting and distributing power. This design ensures the effective transmission and coordinated operation of power between different wheel sets.

[0070] It can be understood that by driving the transmission wheel 12 through the driving wheel 11 and then through the multi-stage transmission of the rack 8 and the driven wheel set, the efficient operation of the complex mechanical device is achieved. The tight meshing and precise connection between the components enable the entire mold to operate smoothly and reliably under different working conditions.

[0071] In some examples of the present application, a mold includes:

[0072] A third driven wheel set 15 is provided at the upper part of the sleeve 18. The third driven wheel set 15 is tightly connected to the upper part of the sleeve 18. A second locking mechanism 16 is provided inside the driving module 4. The second locking mechanism 16 meshes with the third driven wheel set 15.

[0073] It can be understood that the third driven wheel set 15 is installed at the upper part of the sleeve 18 and is tightly connected thereto. This tight connection ensures that during the transmission process, the third driven wheel set 15 can stably bear the driving force from the sleeve 18 and maintain synchronous rotation. After the injection molding work is completed, the oil cylinder motor 6 rotates in reverse, and the third driven wheel set 15 rotates downward to facilitate the detachment of the threaded product. In addition, a second locking mechanism 16 is provided inside the driving module 4. When detaching the threaded product, the second locking mechanism 16 meshes with the third driven wheel set 15 to fix the third driven wheel set 15, further enhancing the stability and control accuracy of the system.

[0074] In some examples of the present application, a first gas injection module 3 of a mold includes:

[0075] The housing of the first gas injection module 3, the first gas injection holes. The housing of the first gas injection module 3 is provided with a plurality of first gas injection holes, and the first gas injection holes are embedded in the housing of the first gas injection module 3.

[0076] It can be understood that the housing of the first gas injection module 3 is designed to be strong and versatile, capable of accommodating a plurality of first gas injection holes. These first gas injection holes are distributed at different positions of the housing of the first gas injection module 3 to ensure that gas can be evenly injected into the mold cavity. Each first gas injection hole is embedded in the housing of the first gas injection module 3. This embedded design not only improves the stability of the gas injection holes but also enhances the sealing between them and the housing of the first gas injection module 3, preventing gas leakage or uneven flow. Through this precise structure, the first gas injection module 3 can achieve precise gas injection during the production process, ensuring the product quality and production efficiency of the mold.

[0077] In some examples of the present application, a second gas injection module 9 of a mold includes:

[0078] The housing of the second gas injection module 9, the second gas injection holes, the front panel 19 and the bottom panel 20. The housing of the second gas injection module 9 is provided with a plurality of second gas injection holes, and the second gas injection holes are embedded in the housing of the second gas injection module 9. The lower surface of the front panel 19 is closely attached to the upper surface of the bottom panel 20, and the sides of the front panel 19 and the bottom panel 20 are closely attached to the inner wall of the housing of the second gas injection module 9.

[0079] Specifically, the housing of the second gas injection module 9 serves as the main structural component and is provided with a plurality of second gas injection holes. These gas injection holes are distributed inside the housing of the second gas injection module 9 to ensure that gas can be injected into the ejector pin 17 evenly and precisely. Each gas injection hole is embedded inside the housing of the second gas injection module 9. This design not only improves the stability of the gas injection holes but also enhances the sealing effect between them and the housing of the second gas injection module 9, thus effectively preventing gas leakage or uneven flow. The front panel 19 and the bottom panel 20 are key flat components in the structure, and they are closely attached together to provide stable support. The lower surface of the front panel 19 is closely attached to the upper surface of the bottom panel 20. This attachment method ensures a rigid connection between the two flat plates, reducing relative movement or deformation between the plates, thereby improving the structural strength of the second gas injection module 9. In addition, the sides of the front panel 19 and the bottom panel 20 are also closely attached to the inner wall of the housing of the second gas injection module 9. This design further ensures the sealing performance and structural integrity of the second gas injection module 9, avoiding deformation or loosening caused by external forces or air pressure. This close attachment design optimizes the air flow path inside the second gas injection module 9, enabling the injected gas to reach the ejector pin 17 with higher efficiency and precision.

[0080] It can be understood that through precise structural design, the second gas injection module 9 achieves stable connection and efficient cooperation among its components. The close fitting of the second gas injection holes and the housing of the second gas injection module 9, as well as the close attachment between the front panel 19 and the bottom panel 20, ensure the high efficiency and reliability of the second gas injection module 9 during the gas injection process. Such a design is particularly suitable for mold control requirements of high precision and high reliability, and can significantly improve the quality and consistency of products in mold production.

[0081] In some examples of the present application, an ejector pin 17 of a mold includes:

[0082] A mold core is provided on the upper part of the sleeve 18. The upper part of the ejector pin 17 is attached to the mold core. The ejector pin 17 is embedded in the sleeve 18, and the ejector pin 17 is used to lift the mold core.

[0083] It can be understood that a mold core is installed on the upper part of the sleeve 18. The mold core is a key component in the mold for forming the outer shape of the product. It is closely connected to the structure of the sleeve 18 to ensure that the mold can maintain a stable and precise shape during the production process. The ejector pin 17 is designed to achieve the smooth demolding of the product in the mold. The upper part of the ejector pin 17 is closely attached to the mold core and is embedded inside the sleeve 18. This embedded design ensures the stability of the ejector pin 17 inside the mold and enables it to accurately transfer the force to the mold core. After the product is formed and the injection molding work is completed, the oil cylinder motor 6 rotates in reverse, and the third driven wheel group 15 rotates downward. After separating from the threaded product, the ejector pin 17 pushes the product out of the mold cavity by lifting the mold core, thus completing the demolding process. This design ensures that the product is not damaged during demolding, maintaining the integrity and surface quality of the product. The overall design precisely coordinates and matches between various components, and is suitable for molds that require high-precision forming and demolding.

[0084] In some examples of the present application, the ejector pin 17 of a mold includes:

[0085] The lower part of the ejector pin 17 is embedded in the front panel 19 and the bottom panel 20, and the lower part of the ejector pin 17 is fixedly connected to the second injection hole.

[0086] Specifically, the lower part of the ejector pin 17 is designed to be embedded between the front panel 19 and the bottom panel 20 and is fixedly connected to the second injection hole. This embedded design ensures the stable fixation of the ejector pin 17 in the mold. The front panel 19 and the bottom panel 20 respectively provide strong support between the upper and lower surfaces of the ejector pin 17, ensuring that the ejector pin 17 can effectively transfer the lifting force during operation, thereby accurately lifting the mold core. The stability of the ejector pin 17 is crucial for the normal operation of the mold because it directly affects the smooth progress of the demolding process and the quality of the product. In addition, the lower part of the ejector pin 17 is also fixedly connected to the second injection hole, and there is a direct mechanical connection between the ejector pin 17 and the second injection hole, ensuring that the gas can directly act on the ejector pin 17 through the second injection hole, assisting the action of the ejector pin 17 through gas pressure, and improving the lifting efficiency and accuracy of the ejector pin 17. Through this gas-assisted method, the ejector pin 17 can achieve a more efficient lifting action under less physical pressure, thereby optimizing the demolding process.

[0087] In some examples of the present application, the liquid injection module 2 of a mold includes:

[0088] The housing of the liquid injection module 2, the injection holes. The housing of the liquid injection module 2 is provided with several injection holes, the injection holes are embedded in the housing of the liquid injection module 2. The upper part of the liquid injection module 2 is provided with an upper top plate, the upper top plate is closely attached to the upper surface of the liquid injection module 2, the material port 1 is embedded in the upper top plate and the liquid injection module 2, and several nozzles 10 are provided at the lower part of the material port 1, and the nozzles 10 are closely attached to the lower surface of the material port 1.

[0089] Specifically, the outer shell of the liquid injection module 2 is an important structural part of the mold, responsible for accommodating and protecting the internal components. In addition, several liquid injection holes are provided on the outer shell, and these liquid injection holes are distributed on the outer shell of the liquid injection module 2. The function of these liquid injection holes is to inject the coolant into the mold interior. The liquid injection holes are embedded in the outer shell of the liquid injection module 2, and this embedded design enhances the stability and sealing performance of the liquid injection holes, preventing liquid leakage or uneven flow. At the upper part of the liquid injection module 2, an upper top plate is installed. The upper top plate is closely attached to the upper surface of the liquid injection module 2, forming a closed upper structure. This closely attached design not only provides additional mechanical support but also ensures the overall sealing performance of the liquid injection module 2, preventing external substances from entering the module interior and effectively controlling the flow of the liquid. The material inlet 1 is arranged between the upper top plate and the liquid injection module 2. The material inlet 1 is the inlet for injecting high-temperature molten plastic. Several nozzles 10 are provided at the lower part of the material inlet 1. Preferably, there are 4 nozzles 10, and these 4 nozzles 10 are closely attached to the lower surface of the material inlet 1. The nozzles 10 pour the high-temperature molten plastic at the material inlet 1 onto the mold core for injection molding of products. The design of the nozzles 10 is used to evenly distribute the molten plastic onto the mold core in the mold. The material inlet 1 and the nozzles 10 can ensure the precise control of the molten plastic and reduce waste during the injection molding process.

[0090] It can be understood that the embedded design of the liquid injection holes ensures the stability of the coolant injection, the close attachment of the upper top plate provides structural support and sealing protection, and the design of the material inlet 1 and the nozzles 10 ensures the even distribution of the molten plastic, enabling the liquid injection module 2 to efficiently and reliably inject the coolant and the high-temperature molten plastic in the mold, meeting the requirements of the precision injection process.

[0091] In some examples of the present application, a mold includes:

[0092] A lower bottom plate 22 is provided at the lower part of the outer shell of the second gas injection module 9, and the lower bottom plate 22 is closely attached to the lower surface of the bottom positive plate 20.

[0093] It can be understood that a lower bottom plate 22 is provided at the lower part of the outer shell of the second gas injection module 9. The lower bottom plate 22 provides stable bottom support and structural support. The lower bottom plate 22 is closely attached to the lower surface of the bottom positive plate 20, ensuring a firm connection and precise alignment between the two. This closely attached design not only increases the stability of the mold but also effectively prevents any displacement or loosening caused by vibration or external force. The precise connection between the lower bottom plate 22 and the bottom positive plate 20 ensures the accurate injection of gas and enhances the overall sealing performance of the module, avoiding gas leakage. This structural configuration helps to improve the operational reliability of the second gas injection module 9, enabling it to operate efficiently and stably during production.

[0094] In summary, the utility model relates to the technical field of injection molds, and discloses a mold. It includes a material port, a liquid injection module, a first gas injection module, a second gas injection module, a driving module and an ejector pin. The material port is used to inject molten plastic, the liquid injection module is used to inject coolant, the first gas injection module is closely fitted with the lower surface of the liquid injection module, the first gas injection module is used to inject gas, the driving module is closely fitted with the lower surface of the first gas injection module, the driving module is used to drive the internal structure of the mold to rotate, the second gas injection module is closely fitted with the lower surface of the driving module, and the second gas injection module is used to inject gas to push the ejector pin to lift. The liquid injection module injects coolant into the interior of its mold to solidify the molten plastic and form a predetermined shape. The first and second gas injection modules inject air into the interior of the mold to ensure the circulation of the internal structure and lift the ejector pin, so that the product can be demolded smoothly. During the demolding process, the driving module drives the driving wheel of the mold to rotate, so that the thread is disengaged, thereby ensuring that the product maintains integrity during demolding. At the same time, the chain structure of the traditional mold is no longer used, which ensures the stability of the transmission structure operation, thereby reducing the cost of manual maintenance and improving the quality of the product.

[0095] Those skilled in the art can understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mold, characterized in that: include: A material port, a liquid injection module, a first gas injection module, a second gas injection module, a drive module and an ejector pin; The material port is used to inject molten plastic; The liquid injection module is used to inject coolant; The first gas injection module is tightly fitted to the lower surface of the liquid injection module, and the first gas injection module is used to inject gas; The driving module is attached to the lower surface of the first gas injection module, and the driving module is used to drive the internal structure of the mold to rotate; The second gas injection module is tightly fitted to the lower surface of the driving module, and the second gas injection module is used to inject gas to push the ejector pin to rise.

2. A mold according to claim 1, characterized in that: The driving module comprises: A fixing mechanism, a cylinder motor, a first locking mechanism, a rack, a drive unit and a drive module housing; The fixing mechanism is a rectangular parallelepiped structure, a circular opening is provided in the middle of the fixing mechanism, an inward cutout is provided at the bottom of the opening, and the fixing mechanism is closely fitted to the driving module housing; The oil cylinder motor is embedded in the opening, and the opening is used to fix the oil cylinder motor; The rack passes through the driving module housing, and the upper part of the rack is provided with a groove which fits with the first locking mechanism; The lower surface of the first locking mechanism is in contact with the groove, and the first locking mechanism is used to lock the rack.

3. A mold according to claim 2, characterized in that: The driving unit comprises: A driving wheel, a transmission wheel, a first driven wheel set, a second driven wheel set and a sleeve; The driving wheel is tightly fixed to the upper part of the cylinder motor, and the driving wheel is used to drive the transmission wheel to rotate; The lower gear of the transmission wheel is meshed with the rack, and the upper gear of the transmission wheel is meshed with the driving wheel and the first driven wheel group; The driving unit is provided with a plurality of sleeves, the lower part of the sleeves is tightly connected to the first driven wheel set, and the first driven wheel set is meshed with the second driven wheel set.

4. A mold according to claim 3, characterized in that: include: A third driven wheel set is arranged on the upper part of the sleeve, and the third driven wheel set is tightly connected to the upper part of the sleeve; A second locking mechanism is disposed inside the driving module, and the second locking mechanism is meshed with the third driven wheel set.

5. A mold according to claim 1, characterized in that: The first gas injection module comprises: A first gas injection module housing, a first gas injection hole; The first gas injection module shell is provided with a plurality of first gas injection holes, and the first gas injection holes are embedded in the first gas injection module shell.

6. A mold according to claim 1, characterized in that: The second gas injection module comprises: A second gas injection module housing, a second gas injection hole, a surface positive plate and a bottom positive plate; The second gas injection module housing is provided with a plurality of second gas injection holes, and the second gas injection holes are embedded in the second gas injection module housing; The lower surface of the front plate is closely attached to the upper surface of the bottom plate; The side surfaces of the front plate and the bottom plate are closely attached to the inner wall of the second gas injection module housing.

7. A mold according to claim 3, characterized in that: The ejector pin comprises: A mold core is arranged on the upper part of the sleeve, the upper part of the ejector pin is in contact with the mold core, the ejector pin is embedded in the sleeve, and the ejector pin is used to lift the mold core.

8. A mold according to claim 6, characterized in that: The ejector pin comprises: The lower part of the ejector pin is embedded in the surface positive plate and the bottom positive plate, and the lower part of the ejector pin is fixedly connected to the second gas injection hole.

9. A mold according to claim 1, characterized in that: The injection module comprises: Liquid injection module housing, liquid injection hole; The injection module housing is provided with a plurality of injection holes, and the injection holes are embedded in the injection module housing; An upper top plate is provided on the upper part of the liquid injection module, and the upper top plate is closely fitted to the upper surface of the liquid injection module; The material port is embedded in the upper top plate and the liquid injection module; A plurality of filling nozzles are arranged at the lower part of the material opening, and the filling nozzles are closely fitted to the lower surface of the material opening.

10. A mold according to claim 6, characterized in that: include: A lower base plate is disposed at the lower portion of the second gas injection module housing, and the lower base plate is closely attached to the lower surface of the bottom front plate.

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