CN218631653U - Coil shaping device - Google Patents
Coil shaping device Download PDFInfo
- Publication number
- CN218631653U CN218631653U CN202223201663.9U CN202223201663U CN218631653U CN 218631653 U CN218631653 U CN 218631653U CN 202223201663 U CN202223201663 U CN 202223201663U CN 218631653 U CN218631653 U CN 218631653U
- Authority
- CN
- China
- Prior art keywords
- coil
- shaping
- heating
- assembly
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- General Induction Heating (AREA)
Abstract
The application discloses coil shaping device includes: the shaping assembly comprises a bearing part and a pressing part, wherein the bearing part is used for bearing the coil, and the pressing part is used for pressing the coil supported by the bearing part so as to shape the coil supported by the bearing part; the heating assembly is used for heating the shaping assembly so as to heat the coil in the shaping assembly; and a temperature detection assembly for detecting the temperature of the shaping assembly. In this application, can heat the coil more accurately through heating element and temperature-detecting subassembly to release the stress in the coil plastic process, and then improve the quality of coil plastic.
Description
Technical Field
The application belongs to the technical field of coil processing, especially, relate to a coil shaping device.
Background
With the technical iteration in the fields of VR (Virtual Reality) and AR (Augmented Reality), the application of the wireless charging technology in the industry is wider, and is limited by the product ID (Industrial Design) form, and the inductor coil used for wireless charging needs to be made into a shape matched with the product shape, so that the efficiency of electrical coupling between the inductor coils matched for wireless charging is maximized.
In the related art, a mold is usually adopted to directly press and shape a plurality of special-shaped inductance coils such as cambered coils, and the inductance coils have the problem of stress rebound deformation after pressing, so that the actual shape of the inductance coils is greatly different from the required shape, and the wireless charging efficiency is further influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a coil shaping device, can improve the precision of coil shaping.
The embodiment of the application provides a coil shaping device, includes:
the shaping assembly comprises a bearing part and a pressing part, wherein the bearing part is used for bearing the coil, and the pressing part is used for pressing the coil borne by the bearing part so as to shape the coil borne by the bearing part;
a heating assembly for heating the shaping assembly to heat the coil within the shaping assembly; and
and the temperature detection assembly is used for detecting the temperature of the shaping assembly.
Optionally, at least one of the bearing component and the pressing component is provided with the temperature detection assembly.
Optionally, the press-fit component includes a first mounting seat and a first shaping portion, the first shaping portion is convexly disposed on one side of the first mounting seat facing the bearing component, and the first shaping portion is configured to press the coil supported by the bearing component to shape the coil supported by the bearing component.
Optionally, the heating assembly comprises:
the first heating part is arranged on the first mounting seat; and
and the second heating component is arranged on the first mounting seat, and is positioned on one side of the first shaping part, which is far away from the first heating component.
Optionally, the temperature detecting assembly includes a first temperature detecting component, the first temperature detecting component is disposed on the first mounting seat, and the first temperature detecting component is located between the first heating component and the second heating component.
Optionally, the bearing component includes a second mounting seat and a second shaping portion, the second shaping portion is convexly disposed on one side of the second mounting seat facing the press component, and the second shaping portion is used for supporting the coil.
Optionally, the heating assembly comprises:
the third heating part is arranged on the second mounting seat; and
and the fourth heating component is arranged on the second mounting seat, and is positioned on one side of the second shaping part, which is far away from the third heating component.
Optionally, the temperature detecting assembly includes a second temperature detecting component, the second temperature detecting component is disposed on the second mounting seat, and the second temperature detecting component is located between the third heating component and the fourth heating component.
Optionally, the coil shaping device further includes a cooling assembly for cooling the coil supported by the carrier.
Optionally, the pressing component is provided with a first curved surface for pressing the coil; and/or
The bearing part is provided with a second curved surface for bearing the coil.
In this application embodiment, the plastic subassembly can carry out the pressfitting plastic to the coil through pressfitting part and carrier part, can heat the stress in order to release coil plastic process to the plastic subassembly through heating assembly simultaneously, and then reduces the resilience that the coil takes place after pressfitting part and the separation of carrier part. Further, detect heating element's heating temperature through the temperature-detecting subassembly to heating element's heating temperature is adjusted through manual or other external device automatically regulated's mode in order to make the coil can carry out the plastic under suitable temperature finally, with the precision after further improving the coil plastic.
Drawings
The technical solutions and advantages of the present application will become apparent from the following detailed description of specific embodiments of the present application when taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic structural diagram of a coil shaping device provided in an embodiment of the present application and having a coil placed therein.
Fig. 2 is a schematic structural diagram of the coil shaping device shown in fig. 1 in a state of pressing and shaping the coil.
Fig. 3 is a schematic structural diagram of the coil shaping device shown in fig. 2 after the coil is shaped.
Fig. 4 is a schematic view of a structure of a side of the supporting member in the coil shaping apparatus shown in fig. 1.
Fig. 5 is a schematic structural view of a pressing member side of the coil shaping apparatus shown in fig. 1.
The reference numbers in the figures are respectively:
100. a shaping component;
11. a carrier member; 111. a second screw hole; 112. a second mounting seat; 113. a second shaping unit; 114. a second curved surface; 115. a guide structure; 12. a press-fit member; 121. a first screw hole; 122. a first mounting seat; 123. a first shaping unit; 124. a first curved surface; 13. a positioning column;
200. a heating assembly;
21. a first heating member; 22. a second heating member; 23. a third heating member; 24. a fourth heating member;
300. a temperature detection assembly; 31. a first temperature detection member; 32. a second temperature detection member;
400. a cooling assembly;
500. and a coil.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a coil shaping device for carry out the plastic to the coil. Specifically, the coil shaping device may be used for shaping a local region of the coil, or may be used for shaping the entire coil; the coil shaping device may shape one coil at a time, or shape a plurality of coils at the same time, which is not limited in the embodiments of the present application.
For example, referring to fig. 1 to fig. 3, fig. 1 is a schematic structural diagram of a coil placed in a coil shaping device provided in an embodiment of the present application, fig. 2 is a schematic structural diagram of the coil shaping device shown in fig. 1 in a state of performing press-fitting and shaping on a coil, and fig. 3 is a schematic structural diagram of the coil shaping device shown in fig. 2 after shaping the coil. The coil shaping device may include a shaping assembly 100, a heating assembly 200, and a temperature sensing assembly 300. The fairing assembly 100 includes a carrier component 11 and a compression component 12. The carrier 11 is used for holding the coil 500, and the pressing member 12 is used for pressing the coil 500 held by the carrier 11, so as to shape the coil 500 held by the carrier 11. The heating assembly 200 is used to heat the fairing assembly 100 to heat the coil 500 within the fairing assembly 100; furthermore, during the shaping process of the coil 500, at least part of the stress inside the coil 500 can be eliminated by heating the coil 500, and finally, the spring back of the coil 500 after the press-fit component 12 is separated from the bearing component 11 can be reduced. The temperature detection assembly 300 is used for detecting the temperature of the shaping assembly 100; furthermore, the heating temperature of the heating assembly 200 can be detected by the temperature detecting assembly 300, so that the heating temperature of the heating assembly 200 can be adjusted by manual or automatic adjustment of other external devices, so that the coil 500 can be shaped at a proper temperature.
Specifically, taking the pressing member 12 above the bearing member 11 as an example, the shaping step of the coil 500 may be as follows:
first, as shown in fig. 1, the caulking part 12 is disposed at a distance from the carrier part 11, and the coil 500 is placed on the carrier part 11. Then, the heating assembly 200 starts to heat the shaping assembly 100 until the heating assembly 200 stops heating after the temperature detection assembly 300 detects that the heating assembly 200 heats the shaping assembly 100 to a proper temperature. Next, as shown in fig. 2, the caulking part 12 is driven to move downward, so that the caulking part 12 and the carrier part 11 perform caulking shaping on the coil 500 from both upper and lower sides of the coil 500. Finally, as shown in fig. 3, after the coil 500 is press-fitted and shaped for a certain time, the press-fitting member 12 is driven to move upward and the coil 500 is taken out from the carrier member 11.
The shaping assembly 100 may be driven by an automated device, such as the pressing part 12 may be provided with a plurality of first screw holes 121 to lock onto a fixing plate of the pneumatic molding press, the bearing part 11 may be provided with a plurality of second screw holes 111 to lock onto a base of the pneumatic molding press, and the pressing part 12 may be driven to abut against or separate from the bearing part 11 during the process of the pneumatic molding press driving the fixing plate to move up and down.
In some embodiments, at least one of the load bearing part 11 and the press part 12 is provided with a temperature detection assembly 300. That is to say, only the bearing component 11 may be provided with the temperature detection assembly 300, only the pressing component 12 may be provided with the temperature detection assembly 300, or both the bearing component 11 and the pressing component 12 may be provided with the temperature detection assembly 300, which is not limited in this embodiment of the application.
In the following, the technical solution of the embodiment of the present application will be further explained and explained with reference to some optional structures of the pressing component 12.
The press-fit component 12 includes a first mounting seat 122 and a first shaping portion 123. The first shaping portion 123 is protruded from a side of the first mounting seat 122 facing the carrier member 11. The first shaping portion 123 is used to press the coil 500 held by the carrier member 11 to shape the coil 500 held by the carrier member 11.
Wherein the first mounting seat 122 may be provided with the first screw hole 121 as described above to be mounted to the pneumatic die press.
At this time, taking the example that the heating assembly 200 is at least partially disposed on the pressing member 12, the heating assembly 200 may include a first heating member 21 and a second heating member 22. The first heating member 21 is disposed on the first mounting seat 122. Second heating member 22 is also disposed on first mounting base 122. And the second heating member 22 is located on the side of the first shaping portion 123 away from the first heating member 21. It is also understood that the opposite sides of the first shaping part 123 are provided with heating parts to heat simultaneously. Furthermore, by the cooperation of the first heating member 21 and the second heating member 22, on the one hand, the heating efficiency of the first shaping portion 123 can be improved, and finally the shaping efficiency of the entire coil shaping device can be improved; on the other hand, the first shaping part 123 can be heated more uniformly, so that the stress release of the coil 500 at all positions in the shaping process is more uniform, and the shaping quality of the coil 500 is improved.
The first heating member 21 may include at least one of a thermoelectric element and a liquid heat exchange member. Examples of the thermoelectric element include a heating wire, a resistance heating device, and a semiconductor refrigeration device. The liquid heat exchange assembly is an assembly for refrigerating by arranging a pipeline for conveying high-temperature or low-temperature liquid.
Accordingly, the temperature detection assembly 300 may then include a first temperature detection component 31, such as a first temperature sensor. First temperature detection member 31 is provided in first mounting seat 122, and first temperature detection member 31 is located between first heating member 21 and second heating member 22. Further, the temperature at the first shaping part 123 can be more accurately detected by the first temperature detecting part 31 to improve the shaping quality of the coil 500.
The number of the first temperature sensors may be one or multiple, and this is not limited in the embodiment of the present application. Taking the number of the first temperature sensors as an example, the first heating member 21 and the second heating member 22 may be located at both left and right sides of the first shaping portion 123, and the first temperature sensors may be disposed at both front and rear sides of the first shaping portion 123.
In the following, the technical solutions of the embodiments of the present application will be further explained and explained with reference to some optional structures of the bearing component 11.
The carrier 11 may include a second mounting seat 112 and a second shaping portion 113, the second shaping portion 113 is protruded from a side of the second mounting seat 112 facing the press-fit component 12, and the second shaping portion 113 is used for holding the coil 500.
Wherein the second mounting seat 112 may be provided with the above-mentioned second screw hole 111 to be mounted to a base of the pneumatic molding press.
At this time, taking the example that the heating assembly 200 is at least partially disposed on the carrier member 11, the heating assembly 200 may include the third heating member 23 and the fourth heating member 24. The third heating member 23 is provided in the second mounting base 112. The fourth heating member 24 is also disposed on the second mounting seat 112. And the fourth heating member 24 is located on the side of the second shaping portion 113 away from the third heating member 23. It is also understood that the opposite sides of the second shaping portion 113 are provided with heating members to perform heating simultaneously. Furthermore, by the cooperation of the third heating member 23 and the fourth heating member 24, on the one hand, the heating efficiency of the second shaping portion 113 can be improved, and finally the shaping efficiency of the entire coil shaping device can be improved; on the other hand, the second shaping portion 113 can be heated more uniformly, so that the stress release of the coil 500 at all positions in the shaping process is more uniform, and the shaping quality of the coil 500 can be improved.
It can be further understood that, by combining the first heating member 21 and the second heating member 22, not only the heating efficiency of the embodiment of the present application can be further improved, but also the heating of the coil 500 can be further made more uniform, and finally the shaping efficiency and the shaping refrigeration of the coil 500 can be improved. Of course, the coil shaping device may be provided with only the first heating member 21 and the second heating member 22, may be provided with only the third heating member 23 and the fourth heating member 24, or may be provided with the first heating member 21, the second heating member 22, the third heating member 23, and the fourth heating member 24 at the same time, which is not limited in the embodiment of the present application.
The third heating member 23 may include at least one of a thermoelectric element and a liquid heat exchange assembly. Examples of the thermoelectric element include a heating wire, a resistance heating device, and a semiconductor refrigeration device. The liquid heat exchange assembly is an assembly for refrigerating by arranging a pipeline for conveying high-temperature or low-temperature liquid.
The fourth heating member 24 may include at least one of a thermoelectric component and a liquid heat exchange assembly. Examples of the thermoelectric element include a heating wire, a resistance heating device, and a semiconductor refrigeration device. The liquid heat exchange assembly is an assembly for refrigerating by arranging a pipeline for conveying high-temperature or low-temperature liquid.
Accordingly, the temperature detection assembly 300 may then include a second temperature detection component 32, such as a second temperature sensor. The second temperature detecting member 32 is provided to the second mounting seat 112, and the second temperature detecting member 32 is located between the third heating member 23 and the fourth heating member 24. Further, the temperature at the second shaping portion 113 can be more accurately detected by the second temperature detecting means 32 to improve the shaping quality of the coil 500.
The number of the second temperature sensors may be one, or may be multiple, which is not limited in the embodiment of the present application. Taking the number of the second temperature sensors as an example, the third heating member 23 and the fourth heating member 24 may be located at both left and right sides of the second shaping portion 113, and the second temperature sensors may be disposed at both front and rear sides of the second shaping portion 113.
In some embodiments, the coil shaping device may further include a cooling assembly 400. The cooling unit 400 is used to cool the coil 500 held by the carrier member 11. Specifically, after the coil 500 is pressed by the pressing member 12 for a certain time, the cooling assembly 400 cools the entire assembly 100 to achieve cooling of the coil 500. Meanwhile, during the cooling process of the cooling assembly 400, a detection process may be performed by the temperature detection assembly 300 to determine whether the coil 500 is cooled to a suitable temperature.
The cooling assembly 400 may be mounted on the shaping assembly 100, or may be provided separately from the shaping assembly 100, which is not limited in this embodiment. Take the example where the cooling assembly 400 and the reforming assembly 100 are separately provided. The cooling module 400 may be mounted and fixed to the pneumatic die press.
The cooling assembly 400 may include at least one of a semiconductor refrigeration device or a liquid heat exchange assembly, which is not limited in this application.
In some embodiments, the coil shaping device may further include a temperature switch (not shown). A temperature switch is provided in the reforming assembly 100 and is also electrically connected to the heating assembly 200 to turn on or off the heating assembly 200. Furthermore, by providing the temperature switch, the heating assembly 200 can be prevented from heating the coil 500 to a too high temperature.
The temperature switch is a temperature switch in the prior art, in which the contact of the switch can be closed or opened along with the change of temperature. The temperature switch uses a bimetallic strip as a temperature sensing element, when an electric appliance works normally, the bimetallic strip is in a free state, a contact is in a closed/open state, when the temperature rises to an action temperature value, the bimetallic element is heated to generate internal stress to act rapidly, the contact is opened/closed, and a circuit is cut off/connected, so that the thermal protection effect is achieved. Based on this, when the temperature of the shaping assembly 100 is too high, the temperature switch may automatically turn off the heating assembly 200 to prevent the shaping assembly 100 and/or the coil 500 from being damaged due to the too high temperature of the heating assembly 200, and after the temperature of the shaping assembly 100 is decreased to a certain temperature again, the temperature switch may automatically turn on the heating assembly 200.
In this embodiment of the present application, the bearing component 11 may be provided with a temperature switch, the pressing component 12 may be provided with a temperature switch, or both the bearing component 11 and the pressing component 12 may be provided with a temperature switch, which is not limited in this embodiment of the present application.
With reference to fig. 4 and fig. 5, fig. 4 is a schematic structural view of a side of the supporting member in the coil shaping device shown in fig. 1, and fig. 5 is a schematic structural view of a side of the pressing member in the coil shaping device shown in fig. 1. In some embodiments, the pressing member 12 is provided with a first curved surface 124 for pressing the coil 500, and the first curved surface 124 may be a concave surface or a convex surface, which is not limited in this application. Of course, in some other embodiments, the pressing member 12 can press the coil 500 through a plane to shape the coil 500.
In some embodiments, the bearing member 11 is provided with a second curved surface 114 for supporting the coil 500, and the second curved surface 114 may be a concave surface or a convex surface, which is not limited in this embodiment. Of course, in some other embodiments, the carrier member 11 may hold the coil 500 through a plane to shape the coil 500.
Specifically, the pressing member 12 may be provided with the first curved surface 124, and the bearing member 11 is not provided with the second curved surface 114, or the pressing member 12 is not provided with the first curved surface 124, and the bearing member 11 is provided with the second curved surface 114, or the pressing member 12 is provided with the first curved surface 124, and the bearing member 11 is provided with the second curved surface 114, which is not limited in the symmetry in the embodiment of the present application.
For example, in combination with the above-mentioned pressing member 12 having the first shaping portion 123, the first curved surface 124 may be a convex curved surface of the first shaping portion 123 facing the side of the supporting member. The supporting member further combined with the above-mentioned one may have a second shaping portion 113, and the second curved surface 114 may be a concave curved surface of the second shaping portion 113 facing the pressing member 12.
In some embodiments, orthopedic assembly 100 can further include locating posts 13. The positioning post 13 is detachably slidably mounted on the bearing member 11, the positioning post 13 can be inserted into the coil 500 supported by the bearing member 11 to position the coil 500 supported by the bearing member 11, and the positioning post 13 can be slid to be separated from the coil 500 supported by the bearing member 11.
Furthermore, after the coil 500 is shaped, the positioning column 13 can be moved to be separated from the coil 500 so as to take out the coil 500 in the shaping assembly 100.
In some embodiments, the bearing component 11 may further be provided with a guiding structure 115, such as a guide post, a guide sleeve, etc., which is matched with the pressing component 12, so as to improve the movement precision of the pressing component 12, which is not limited by the embodiment of the present application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The coil shaping device provided in the embodiments of the present application is described in detail above, and the principles and embodiments of the present application are explained herein by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A coil shaping device, comprising:
the shaping assembly comprises a bearing part and a pressing part, wherein the bearing part is used for bearing the coil, and the pressing part is used for pressing the coil borne by the bearing part so as to shape the coil borne by the bearing part;
a heating assembly for heating the shaping assembly to heat the coil within the shaping assembly; and
and the temperature detection assembly is used for detecting the temperature of the shaping assembly.
2. The coil shaping device according to claim 1, wherein at least one of the carrier member and the press-fit member is provided with the temperature detection assembly.
3. The coil shaping device according to claim 2, wherein the press-fit component includes a first mounting seat and a first shaping portion, the first shaping portion is protruded from a side of the first mounting seat facing the carrier component, and the first shaping portion is configured to press the coil supported by the carrier component to shape the coil supported by the carrier component.
4. The coil shaping device according to claim 3, wherein the heating assembly comprises:
the first heating part is arranged on the first mounting seat; and
and the second heating component is arranged on the first mounting seat, and is positioned on one side of the first shaping part, which is far away from the first heating component.
5. The coil shaping device according to claim 4, wherein the temperature detection assembly includes a first temperature detection member provided to the first mounting seat, the first temperature detection member being located between the first heating member and the second heating member.
6. The coil shaping device according to any one of claims 1 to 5, wherein the carrier member includes a second mounting seat and a second shaping portion, the second shaping portion is protruded from a side of the second mounting seat facing the press member, and the second shaping portion is configured to support the coil.
7. The coil shaping device according to claim 6, wherein the heating assembly comprises:
a third heating member provided in the second mounting base; and
and the fourth heating component is arranged on the second mounting seat, and the fourth heating component is positioned on one side, far away from the third heating component, of the second shaping part.
8. The coil shaping device according to claim 7, wherein the temperature detection assembly includes a second temperature detection member provided to the second mounting seat, the second temperature detection member being located between the third heating member and the fourth heating member.
9. The coil shaping device according to any one of claims 1 to 5, further comprising a cooling member for cooling the coil supported by the carrier.
10. The coil shaping device according to any one of claims 1 to 5, wherein the press-fit member is provided with a first curved surface for pressing the coil; and/or
The bearing part is provided with a second curved surface for bearing the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223201663.9U CN218631653U (en) | 2022-11-29 | 2022-11-29 | Coil shaping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223201663.9U CN218631653U (en) | 2022-11-29 | 2022-11-29 | Coil shaping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218631653U true CN218631653U (en) | 2023-03-14 |
Family
ID=85453029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223201663.9U Active CN218631653U (en) | 2022-11-29 | 2022-11-29 | Coil shaping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218631653U (en) |
-
2022
- 2022-11-29 CN CN202223201663.9U patent/CN218631653U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110421856B (en) | Jig assembly for hot melting and hot melting mechanism | |
| CN205496326U (en) | Pipe bending device | |
| CN109406574A (en) | A kind of flat-plate heat pipe test device and system | |
| CN218631653U (en) | Coil shaping device | |
| CN204648844U (en) | Secondary cell drying device | |
| CN116060919A (en) | Compressor shell motor hot-press assembly device and assembly process | |
| CN218631668U (en) | Coil jig and coil shaping device | |
| CN206921959U (en) | Electrokinetic cell rolls up pin | |
| KR102192308B1 (en) | Forming jig of film and forming method Thereof | |
| CN108790119B (en) | Sole mould | |
| CN103934681B (en) | Startor for refrigeration compressor electric machine semi-automatic assembling device | |
| CN215323776U (en) | Notebook battery label covering device with positioning structure | |
| CN211428302U (en) | Pressurization formation contact clamp | |
| CN208781774U (en) | A kind of temperature protector | |
| CN207705103U (en) | The riveting contact pedestal of temperature mode thermal protector | |
| CN219716945U (en) | Automatic positioning device | |
| CN216387111U (en) | Testing device and testing system for electronic element | |
| CN216683402U (en) | Cooling device of hot melting machine | |
| CN217373578U (en) | Hot pressing equipment | |
| CN211768832U (en) | Automobile connector clamp and robot | |
| CN220207757U (en) | Auxiliary equipment for electronic device detection | |
| CN219806480U (en) | Hot pressing jig for glasses products | |
| CN214150132U (en) | Incubation device and incubation heating block thereof | |
| CN218399441U (en) | Hot pressing mechanism | |
| CN219706119U (en) | Automatic hot-plug mechanism for nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |