Threaded component injection molding reset device

Abstract

The utility model discloses a threaded part injection molding reset device, including servo motor, the output fixedly connected with output gear of servo motor, the outer wall of output gear has the engagement of connecting gear, the outer wall of connecting gear has the engagement of transmission gear, the outer wall of transmission gear has the engagement of outer gear. The die core is fixed by the mouthpiece and rotates along the track, before the mold is opened, rotates through the servo motor, drives the rotation of output gear, drives the connecting gear, transmission gear, outer gear rotation in proper order, finally rotates the front mold die core through the rotation of outer gear, and the product retreats along with the rotation of the front mold die core, realizes the separation of product and mould cavity, the action process servo motor, output gear, connecting gear, transmission gear fixed only rotate, can not move up and down, and the outer gear moves up and down along with the front mold die core under the restriction of mouthpiece and rotates along the track.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, and specifically relates to an injection molding reset device for threaded parts. Background Technology

[0002] Injection molds are essential process equipment for producing various industrial products. With the rapid development of the plastics industry and the widespread application of plastic products in sectors such as aviation, aerospace, electronics, machinery, shipbuilding, and automobiles, the application range of injection molds is becoming increasingly broad. An injection mold is a tool used to produce plastic products.

[0003] Currently, the rotating thread structure in molds is mostly non-directional, and the thread starts differently for each mold product. After the improvement, the thread starts at the same position for each mold. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a threaded part injection molding reset device with the advantage of easy demolding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a threaded component injection molding reset device, comprising a servo motor, an output gear fixedly connected to the output end of the servo motor, a connecting gear meshing with the outer wall of the output gear, a transmission gear meshing with the outer wall of the connecting gear, an external gear meshing with the outer wall of the transmission gear, a mold core fixedly connected to the inner wall of the external gear, a toothed sleeve slidably connected to the top outer wall of the mold core, a product disposed on the inner wall of the mold core, and a base disposed at the bottom of the mold core.

[0006] Through the above technical solution, the mold core is fixed by the toothed sleeve and rotates along the trajectory. Before mold opening, the servo motor rotates, driving the output gear to rotate, which in turn drives the connecting gear, transmission gear, and external gear to rotate. Finally, the rotation of the external gear drives the front mold core to rotate. The product moves backward with the rotation of the front mold core, realizing the separation of the product from the mold cavity. During the operation, the servo motor, output gear, connecting gear, and transmission gear are fixed and only rotate, and cannot move up and down. The external gear, under the restriction of the toothed sleeve, carries the front mold core to rotate and move up and down along the trajectory. The product does not move. The rotation of the servo motor drives the gear to rotate, and the rotation of the gear drives the rotation of the front mold core. The rotation of the front mold core achieves the purpose of product thread demolding. To ensure thread consistency, a toothed sleeve is added in the middle of the template to constrain the thread demolding trajectory. The motion amount is set by the servo motor pulse.

[0007] Preferably, the outer walls of the servo motor, connecting gear, transmission gear, and toothed sleeve are fixed on the mold frame, wherein the connecting gear, transmission gear, and base are rotatably connected to the mold frame, and the toothed sleeve is fixed on the mold frame.

[0008] The above technical solution ensures the stability of the equipment. The connecting gear, transmission gear, and base are rotatably connected to the mold frame, allowing them to rotate. The toothed sleeve is fixed on the mold frame, ensuring that the position of the toothed sleeve is fixed and will not be affected by the gear linkage.

[0009] Preferably, the product is a screw, which is formed by plastic film molding inside the mold core, and the bottom of the product is fixed on the base.

[0010] With the above technical solution, the bottom of the product is fixed by the base, which ensures that the screw is fixed during demolding, allowing the mold core to be demolded by rotation.

[0011] Preferably, the thickness of the transmission gear is greater than the thickness of the external gear, and the difference in thickness is proportional to the length of the product.

[0012] The above technical solution ensures that the thickness of the transmission gear and the external gear are related to the length of the product, thus preventing the two gears from disengaging when the external gear is raised.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The mold core is fixed by the toothed sleeve and rotates along the trajectory. Before mold opening, the servo motor rotates, driving the output gear to rotate, which in turn drives the connecting gear, transmission gear, and external gear to rotate. Finally, the external gear rotates, driving the front mold core to rotate. The product moves backward with the rotation of the front mold core, achieving separation of the product from the mold cavity. During the operation, the servo motor, output gear, connecting gear, and transmission gear are fixed and only rotate, unable to move up and down. The external gear, restricted by the toothed sleeve, carries the front mold core to rotate and move up and down along the trajectory. The product remains stationary. The servo motor rotates, driving the gear to rotate, which in turn drives the front mold core to rotate. The rotation of the front mold core achieves the purpose of demolding the product's threads. To ensure thread consistency, a toothed sleeve is added in the middle of the template to constrain the thread demolding trajectory. The motion amount is set by servo motor pulses.

[0015] 2. It can ensure the stability of the equipment. The connecting gear, transmission gear and base are rotatably connected to the mold frame, so that they can rotate. The toothed sleeve is fixed on the mold frame, which can ensure that the position of the toothed sleeve is fixed and will not be affected by the gear linkage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a perspective view of the mold core structure of this utility model.

[0018] In the diagram: 1. Servo motor; 2. Output gear; 3. Connecting gear; 4. Transmission gear; 5. Gear sleeve; 6. External gear; 7. Product; 8. Mold core; 9. Base. Detailed Implementation

[0019] 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.

[0020] Example 1:

[0021] Please see Figures 1-2 This utility model provides a technical solution: a threaded part injection molding reset device, including a servo motor 1, an output gear 2 fixedly connected to the output end of the servo motor 1, a connecting gear 3 meshing with the outer wall of the output gear 2, a transmission gear 4 meshing with the outer wall of the connecting gear 3, an external gear 6 meshing with the outer wall of the transmission gear 4, a mold core 8 fixedly connected to the inner wall of the external gear 6, a toothed sleeve 5 slidably connected to the top outer wall of the mold core 8, a product 7 disposed on the inner wall of the mold core 8, and a base 9 disposed at the bottom of the mold core 8.

[0022] In this implementation scheme, the mold core 8 is fixed by the toothed sleeve 5 and rotates along the trajectory. Before mold opening, the servo motor 1 rotates, driving the output gear 2 to rotate, which in turn drives the connecting gear 3, transmission gear 4, and external gear 6 to rotate. Finally, the external gear 6 rotates, driving the front mold core 8 to rotate. The product 7 moves backward with the rotation of the front mold core 8, realizing the separation of the product 7 from the mold cavity. During the operation, the servo motor 1, output gear 2, connecting gear 3, and transmission gear 4 are fixed and only rotate, and cannot move up and down. The external gear 6, under the restriction of the toothed sleeve 5, carries the front mold core 8 to rotate and move up and down along the trajectory. The product 7 does not move. The rotation of the servo motor 1 drives the gear to rotate, and the rotation of the gear drives the front mold core 8 to rotate. The rotation of the front mold core 8 achieves the purpose of thread demolding of the product 7. To ensure thread consistency, a toothed sleeve 5 is added in the middle of the template to constrain the thread demolding trajectory. The motion amount is set by the pulse of the servo motor 1.

[0023] Example 2:

[0024] Please see Figures 1-2 Based on Embodiment 1, this utility model provides a technical solution: the outer walls of the servo motor 1, connecting gear 3, transmission gear 4 and toothed sleeve 5 are fixed on the mold frame, wherein the connecting gear 3, transmission gear 4 and base 9 are rotatably connected to the mold frame, and the toothed sleeve 5 is fixed on the mold frame.

[0025] In this embodiment, the stability of the equipment can be ensured. The connecting gear 3, the transmission gear 4 and the base 9 are rotatably connected to the mold frame, allowing them to rotate. The toothed sleeve 5 is fixed on the mold frame, ensuring that the position of the toothed sleeve 5 is determined and will not be affected by the gear linkage.

[0026] Example 3:

[0027] Please see Figures 1-2 Based on Embodiment 1 and Embodiment 2, this utility model provides a technical solution: Product 7 is a screw, which is formed in the mold core 8, and the bottom of Product 7 is fixed on the base 9. The thickness of the transmission gear 4 is greater than the thickness of the external gear 6, and the difference in thickness is proportional to the length of Product 7.

[0028] In this embodiment, the bottom of the product 7 is fixed by the base 9, which ensures that the screw is fixed during demolding, allowing the mold core 8 to be demolded by rotation. The thickness of the transmission gear 4 and the thickness of the external gear 6 are related to the length of the product 7, which can ensure that the two gears do not disengage when the external gear 6 rises.

[0029] The working principle and usage process of this utility model: The mold core 8 is fixed by the dental sleeve 5 and rotates along the trajectory. Before mold opening, the servo motor 1 rotates, driving the output gear 2 to rotate, which in turn drives the connecting gear 3, transmission gear 4, and external gear 6 to rotate. Finally, the external gear 6 rotates, driving the front mold core 8 to rotate. The product 7 moves backward with the rotation of the front mold core 8, realizing the separation of the product 7 from the mold cavity. During the operation, the servo motor 1, output gear 2, connecting gear 3, and transmission gear 4 are fixed and only rotate, unable to move up and down. The external gear 6, restricted by the dental sleeve 5, carries the front mold core 8 to rotate and move up and down along the trajectory. The product 7 remains stationary. The rotation of the servo motor 1 drives the gear to rotate, and the gear rotation drives the front mold core 8 to rotate. To achieve the purpose of demolding the threaded part of product 7, a toothed sleeve 5 is added in the middle of the template to constrain the demolding trajectory of the thread, ensuring thread consistency. The motion amount is set by the pulse of the servo motor 1 to ensure the stability of the equipment. The connecting gear 3, the transmission gear 4, and the base 9 are rotatably connected to the mold frame, allowing them to rotate. The toothed sleeve 5 is fixed on the mold frame to ensure that its position is fixed and will not be affected by gear linkage. The bottom of product 7 is fixed by the base 9, which ensures that the screw is fixed during demolding, allowing the mold core 8 to be demolded by rotation. The thickness of the transmission gear 4 and the thickness of the external gear 6 are related to the length of product 7, which can prevent the two gears from disengaging when the external gear 6 rises.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A threaded component injection molding reset device, comprising a servo motor (1), characterized in that: The output end of the servo motor (1) is fixedly connected to an output gear (2), the outer wall of the output gear (2) is meshed with a connecting gear (3), the outer wall of the connecting gear (3) is meshed with a transmission gear (4), the outer wall of the transmission gear (4) is meshed with an external gear (6), the inner wall of the external gear (6) is fixedly connected to a mold core (8), the top outer wall of the mold core (8) is slidably connected to a toothed sleeve (5), the inner wall of the mold core (8) is provided with a product (7), and the bottom of the mold core (8) is provided with a base (9).

2. The threaded component injection molding reset device according to claim 1, characterized in that: The outer walls of the servo motor (1), connecting gear (3), transmission gear (4) and toothed sleeve (5) are fixed on the mold frame, wherein the connecting gear (3), transmission gear (4) and base (9) are rotatably connected to the mold frame, and the toothed sleeve (5) is fixed on the mold frame.

3. The threaded component injection molding reset device according to claim 1, characterized in that: The product (7) is a screw, which is formed in the mold core (8) and the bottom of the product (7) is fixed on the base (9).

4. The threaded component injection molding reset device according to claim 1, characterized in that: The thickness of the transmission gear (4) is greater than the thickness of the external gear (6), and the difference in thickness is proportional to the length of the product (7).

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