Nano injection molding mold

By combining the magnetic adsorption of an electromagnet and a metal plate with a spring reset and a rotating structure driven by a micro-motor, the problem of stable clamping and rotational displacement of nano-injection molding dies is solved, thus meeting the processing requirements of high-precision nano-products.

CN224255760UActive Publication Date: 2026-05-19KUNSHAN BODING ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN BODING ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing nano-injection molding dies cannot achieve stable clamping, and the rotating structure is prone to automatic displacement, affecting processing accuracy.

Method used

It adopts the principle of magnetic adsorption between electromagnet and metal plate, combined with the elastic reset of spring, and drives the rotating seat to rotate with a micro motor. Flexible clamping is achieved through clamping plate and soft pad, and precise positioning is achieved using scale markings.

Benefits of technology

It achieves high-precision and stable clamping and multi-angle adjustment, avoiding surface damage to nano-products, and is suitable for processing high-precision nano-products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nanometer injection molding mold which comprises a mounting base, the top of the mounting base is rotationally connected with a rotating seat, the bottom of the rotating seat is connected with the inner wall of the mounting base, the top of the rotating seat is fixedly provided with a fixed seat, and the top of the rotating seat is provided with through grooves which are uniformly distributed; and synchronous seats which are uniformly distributed are mounted on the inner wall of the rotating seat in a sliding manner. According to the nano ceramic product clamping device, clamping is achieved through the magnetic adsorption principle of the electromagnet and the metal plate, elastic reset of the spring is matched, clamping stability is guaranteed, mechanical damage to the surface of a nano ceramic product is avoided, clamping flexibility and protectiveness are further improved through the attaching head and the soft cushion at the top of the clamping plate, and the service life of the nano ceramic product is prolonged. The rotating base is driven by the micro motor to rotate, multi-angle accurate adjustment can be achieved, the multi-azimuth requirement of CNC machining is met, accurate positioning is facilitated through scale marking lines on the outer side of the rotating base, the overall structure is compact, operation is easy and convenient, and the device is suitable for machining scenes of high-precision nano products.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and more specifically, to a nano-injection molding mold. Background Technology

[0002] In nano-injection molding, nano-parts are placed in plastic molds. Inaccurate positioning can cause errors in the relative position and size of the plastic and nano-parts, affecting subsequent CNC machining and the dimensions of the finished product. The nano-parts will undergo thermal expansion during the preheating process before entering the mold, and the mold core will also undergo thermal expansion under the influence of mold temperature. Considering the large difference in thermal conductivity coefficients between the two materials, the position will shift after entering the mold, resulting in inaccurate positioning and affecting the dimensions of the supported product. Therefore, a mold device that can position the product is proposed.

[0003] Patent application CN2022203045061 discloses a nano-injection molding mold, which includes a box body with a rotating mechanism inside and a clamping mechanism on the upper side of the box body. The rotating mechanism includes a rotating plate, a bottom plate, a fixed block, a fixed plate, a motor, a convex rotating block, three fixed frames, three support rods, three slots, three third rotating rods, and three top rods. The bottom plate is fixedly connected to the lower end of the box body, and the rotating plate is rotatably connected to the upper end of the box body. The three fixed frames are all fixedly connected to the circumferential surface of the fixed block. This utility model uses the clamping mechanism to clamp the product, preventing displacement before the nano-parts are formed. It aims to address the problem that existing mold equipment has issues such as the preheating process of nano-parts before entering the mold, which causes thermal expansion, and the mold core also undergoes thermal expansion under the mold temperature. Considering the large difference in thermal conductivity between the two materials, this can cause positional displacement after entering the mold, resulting in inaccurate positioning and affecting the size of the supported product.

[0004] This structure has certain problems during use. For example, the range of motion of the hinged limiting structure is limited, and it cannot achieve stable clamping for different nano-plastic products. The rigid clamping force generated during clamping can also damage the nano-plastic products. In addition, the rotating structure of this structure is prone to automatic displacement, which will affect the accuracy during subsequent processing and molding. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a nano-injection molding mold to solve the technical problems that existing molds cannot achieve stable clamping and that the rotating structure is prone to automatic displacement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] A nano-injection molding die includes a mounting base, a rotating seat rotatably connected to the top of the mounting base, the bottom of the rotating seat connected to the inner wall of the mounting base, a fixed seat fixedly mounted on the top of the rotating seat, and uniformly distributed through slots on the top of the rotating seat. Uniformly distributed synchronization seats are slidably mounted on the inner wall of the rotating seat, and a spring is fixedly mounted on the synchronization seat. The other end of the spring is fixedly mounted on the inner wall of the rotating seat. A metal plate is fixedly mounted on the side of the synchronization seat away from the spring. An electromagnet is fixedly mounted on the inner wall of the rotating seat, located at the center of the rotating seat and magnetically connected to the metal plate. A clamping plate is fixedly mounted on the top of the synchronization seat, extending through the through slots to the top of the rotating seat. An internal gear ring is fixedly mounted on the bottom of the rotating seat. A micro motor is installed inside the mounting base, and the micro motor meshes with the internal gear ring via a bevel gear.

[0008] As a further description of the above technical solution: a uniformly distributed telescopic limiting sleeve is fixedly installed on the inner wall of the rotating seat, and the other end of the telescopic limiting sleeve is fixedly installed on the synchronization seat.

[0009] As a further description of the above technical solution: the outer side of the fixing base is provided with evenly distributed expansion grooves, and the expansion grooves correspond to the positions of the through grooves.

[0010] As a further description of the above technical solution: a fitting head is fixedly installed on the top of the clamping plate, and a soft pad is fixedly connected to the fitting head.

[0011] As a further description of the above technical solution: the bottom of the mounting base is detachably connected to a mounting base plate, and the micro motor is mounted on the top of the mounting base plate.

[0012] As a further description of the above technical solution: the outer side of the rotating seat is provided with uniformly distributed scale lines.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This invention utilizes the magnetic adsorption principle of an electromagnet and a metal plate to achieve clamping, combined with the elastic reset of a spring. This ensures the stability of the clamping while avoiding mechanical damage to the surface of the nano-ceramic product. The contact head and soft pad on the top of the clamping plate further enhance the flexibility and protection of the clamping. The rotation of the rotating seat driven by a micro motor allows for precise multi-angle adjustment, meeting the multi-directional needs of CNC machining. The scale markings on the outside of the rotating seat facilitate accurate positioning. The overall structure is compact and easy to operate, making it suitable for high-precision nano-product processing scenarios. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a frontal cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic cross-sectional view of the rotating seat structure of this utility model.

[0018] Explanation of the labels in the diagram:

[0019] 1. Mounting base; 2. Rotating seat; 201. Through slot; 3. Fixed seat; 301. Expansion slot; 4. Synchronizing seat; 5. Spring; 6. Metal plate; 7. Electromagnet; 8. Clamping plate; 9. Internal gear ring; 10. Micro motor; 11. Telescopic limit sleeve; 12. Fitting head; 13. Soft pad; 14. Mounting base plate; 15. Scale markings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0021] Please see Figures 1-3 In this utility model, a nano-injection molding die includes a mounting base 1, a rotating seat 2 rotatably connected to the top of the mounting base 1, the bottom of the rotating seat 2 connected to the inner wall of the mounting base 1, a fixed seat 3 fixedly mounted on the top of the rotating seat 2, and evenly distributed through slots 201 formed on the top of the rotating seat 2. Evenly distributed synchronization seats 4 are slidably mounted on the inner wall of the rotating seat 2, and a spring 5 is fixedly mounted on the synchronization seat 4. The other end of the spring 5 is fixedly mounted on the inner wall of the rotating seat 2. A metal plate 6 is fixedly mounted on the side of the synchronization seat 4 away from the spring 5. An electromagnet 7 is fixedly mounted on the inner wall of the rotating seat 2, the electromagnet 7 being located at the center of the rotating seat 2 and magnetically connected to the metal plate 6. The synchronous seat 4 is connected to the synchronous seat 4. A clamping plate 8 is fixedly installed on the top of the synchronous seat 4. The clamping plate 8 passes through the through groove 201 and extends to the top of the rotary seat 2. An internal gear ring 9 is fixedly installed on the bottom of the rotary seat 2. A micro motor 10 is installed inside the mounting base 1. The micro motor 10 meshes with the internal gear ring 9 through a bevel gear. Evenly distributed telescopic limiting sleeves 11 are fixedly installed on the inner wall of the rotary seat 2. The other end of the telescopic limiting sleeves 11 is fixedly installed on the synchronous seat 4. A fitting head 12 is fixedly installed on the top of the clamping plate 8. A soft pad 13 is fixedly connected to the fitting head 12. A mounting base plate 14 is detachably connected to the bottom of the mounting base 1. The micro motor 10 is installed on the top of the mounting base plate 14.

[0022] When CNC machining of nano-ceramic products is required, the user places the product to be processed in the fixed seat 3, and then starts the electromagnet 7. After the electromagnet 7 is energized, it generates a magnetic field that attracts the metal plate 6 on the synchronous seat 4, causing the synchronous seat 4 to slide towards the center against the elastic force of the spring 5. The movement of the synchronous seat 4 drives the clamping plate 8 to move towards the center along the through groove 201. Finally, the product is flexibly clamped by the fitting head 12 and the soft pad 13 to avoid damaging the surface of the product. The telescopic limit sleeve 11 restricts the movement trajectory of the synchronous seat 4 to ensure the stability of the clamping process.

[0023] If the processing angle needs to be adjusted, the micro motor 10 starts and drives the internal gear ring 9 to rotate through the bevel gear, which in turn drives the rotating seat 2 and the fixed seat 3 to rotate as a whole, so that the product reaches the designated processing position. After processing is completed, the electromagnet 7 is deactivated and the electromagnetic field disappears. The spring 5 pushes the synchronous seat 4 to reset, and the clamping plate 8 releases the product, thus completing the processing process.

[0024] In this invention, the magnetic adsorption principle of electromagnet 7 and metal plate 6 is used to achieve clamping, and the elastic reset of spring 5 ensures the stability of clamping and avoids mechanical damage to the surface of nano-ceramic products. The fitting head 12 and soft pad 13 on the top of clamping plate 8 further enhance the flexibility and protection of clamping. The rotation of rotating seat 2 driven by micro motor 10 can achieve multi-angle precise adjustment to meet the multi-directional needs of CNC machining. The scale markings 15 on the outside of rotating seat 2 facilitate precise positioning. The overall structure is compact and easy to operate, making it suitable for high-precision nano-product processing scenarios.

[0025] Please see Figure 1 and 2 The fixed base 3 has evenly distributed expansion slots 301 on its outer side, and the expansion slots 301 correspond to the positions of the through slots 201.

[0026] In this invention, the expansion slot 301 allows the clamping plate 8 to increase its range of motion, thereby enabling the clamping of nano-products of different specifications within the range of motion.

[0027] Please see Figure 1 The outer side of the rotating seat 2 is provided with evenly distributed scale lines 15.

[0028] In this invention, the scale markings 15 on the outer side of the rotating seat 2 facilitate precise positioning, and the specific rotation angle can be determined during the rotation process.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A nano-injection molding die, comprising a mounting base (1), characterized in that: A rotating seat (2) is rotatably connected to the top of the mounting base (1). The bottom of the rotating seat (2) is connected to the inner wall of the mounting base (1). A fixed seat (3) is fixedly installed on the top of the rotating seat (2). A uniformly distributed through groove (201) is opened on the top of the rotating seat (2). A uniformly distributed synchronization seat (4) is slidably installed on the inner wall of the rotating seat (2). A spring (5) is fixedly installed on the synchronization seat (4). The other end of the spring (5) is fixedly installed on the inner wall of the rotating seat (2). The side of the synchronization seat (4) away from the spring (5) is fixed. A metal plate (6) is installed. An electromagnet (7) is fixedly installed on the inner wall of the rotating seat (2). The electromagnet (7) is located at the center of the rotating seat (2) and is magnetically connected to the metal plate (6). A clamping plate (8) is fixedly installed on the top of the synchronous seat (4). The clamping plate (8) passes through the through slot (201) and extends to the top of the rotating seat (2). An internal gear ring (9) is fixedly installed on the bottom of the rotating seat (2). A micro motor (10) is installed inside the mounting base (1). The micro motor (10) meshes with the internal gear ring (9) through a bevel gear.

2. The nano-injection molding die according to claim 1, characterized in that: The inner wall of the rotating seat (2) is fixedly installed with evenly distributed telescopic limiting sleeves (11), and the other end of the telescopic limiting sleeves (11) is fixedly installed on the synchronous seat (4).

3. The nano-injection molding die according to claim 1, characterized in that: The outer side of the fixed base (3) is provided with evenly distributed expansion slots (301), and the expansion slots (301) correspond to the positions of the through slots (201).

4. The nano-injection molding die according to claim 1, characterized in that: A fitting head (12) is fixedly installed on the top of the clamping plate (8), and a soft pad (13) is fixedly connected to the fitting head (12).

5. The nano-injection molding die according to claim 1, characterized in that: The bottom of the mounting base (1) is detachably connected to the mounting base plate (14), and the micro motor (10) is mounted on the top of the mounting base plate (14).

6. The nano-injection molding die according to claim 1, characterized in that: The outer side of the rotating seat (2) is provided with evenly distributed scale lines (15).