A magnetic positioning structure for quick replacement of a sealing mechanism mold

By combining a magnetic positioning structure with a spiral pin and spiral groove design, the safety hazards during punch replacement are solved, enabling convenient installation and disassembly of the die and improving assembly safety and stability.

CN224542911UActive Publication Date: 2026-07-24LANGFANG WOXING MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LANGFANG WOXING MASCH EQUIP CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, the punches are rigid in structure and can easily fall off during replacement, causing injury to assembly personnel and posing a safety hazard.

Method used

The magnetic positioning structure utilizes the adsorption and repulsion principles of magnetic blocks, combined with the cooperation of the spiral pin and spiral groove, to achieve convenient installation and disassembly of the die, avoiding direct detachment. The die slides down slowly through magnetic repulsion, and the rotational force of the spiral pin is converted into axial force to ensure operational safety.

Benefits of technology

It enables convenient installation and disassembly of the punching die, reduces the risk of operators being injured by falling objects, and improves the safety and stability during assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of quick-change mould of sealing mechanism magnetic attraction positioning structure, it is related to mould technical field.The utility model includes fixed seat and punch die;Positioning structure, including the installation groove being opened in the inside of the front end of punch die, the adjusting plate being slidably inserted in the inside of installation groove, the top groove being opened in the inside of adjusting plate upper end, the magnetic block one and magnetic block two being fixed in the inside of top groove, the rotating seat being embedded and installed in the inside of fixed seat lower end, the ring seat being rotatably installed in the inside of rotating seat, the butt joint column being located in ring seat lower end, the butt joint groove being opened in the inside of punch die upper end, the spiral groove being opened in butt joint groove inner wall, the spiral pin being located in butt joint column outer wall, the magnetic block three being fixed in butt joint column lower end, spring one being connected with adjusting plate and installation groove.The utility model is positioned by setting structure, and when punch die is disassembled, it is slowly separated by the spiral joint of spiral pin and spiral groove, to solve the problem that punch die directly separates fixed seat when disassembling, and it is easy to cause punch die to hit assembly personnel.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a magnetic positioning structure for quick mold replacement in a sealing mechanism. Background Technology

[0002] A mold is the mother machine of industrial forming. It gives materials a specific shape by changing their physical state. Its structure includes moving mold, fixed mold or punch and die.

[0003] Chinese patent discloses a stamping die with a replaceable stamping die head (authorization announcement number CN217912495U). This patented technology includes an upper die and a lower die at the bottom of the upper die. A slot is formed on the top surface of the upper die, and a screw is connected inside the slot. A punch is connected to the lower end of the screw, and a protrusion is connected to the top surface of the punch. A spring is connected to the surface of the protrusion. When using this replaceable stamping die, the screw in the slot on the surface of the upper die is first removed using a screwdriver, completely disengaging the screw from the punch. Then, the spring experiences an elastic force, which causes the protrusion to exert an elastic force on the punch, squeezing the punch and causing it to quickly disengage from the tight connection with the upper die. The punch can then quickly disengage from the slot, facilitating replacement.

[0004] However, this patent still has shortcomings. While it enables rapid punch replacement, most punches are structurally rigid, and a direct drop could cause accidental injury to assembly personnel, posing a significant safety hazard during replacement. Therefore, those skilled in the art have provided a magnetic positioning structure for rapid mold replacement using a sealing mechanism to address the problems mentioned in the background section. Utility Model Content

[0005] 1. Technical Solution To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a magnetic positioning structure for quick mold changing of a sealing mechanism, including a fixed base and a punch; The positioning structure includes a mounting groove inside the front end of the die, an adjusting plate slidably inserted into the mounting groove, a top groove symmetrically distributed inside the upper part of the adjusting plate, a magnetic block one and a magnetic block two fixed inside the top groove, a rotating seat embedded inside the lower end of the fixed seat, a ring seat rotatably installed inside the rotating seat, a docking post located at the lower end of the ring seat, a docking groove slidably installed inside the upper end of the die and docking post, a spiral groove spirally distributed on the inner wall of the docking groove, a spiral pin spirally located on the outer wall of the docking post, a magnetic block three fixed at the lower end of the docking post that is magnetically attracted to magnetic block one and magnetically repelled by magnetic block two, a spring one connected to the adjusting plate and the mounting groove, and a handle fixed at the front end of the adjusting plate. as well as; The fixed structure includes a storage groove inside the upper end of the fixed base, side plates located at both ends of the storage groove, sliding grooves opened on both sides of the fixed base, and sliders located on both sides of the upper end of the die and slidably installed inside the sliding grooves.

[0006] Furthermore, the outer wall of the ring seat is provided with an annular groove, and the inner wall of the rotating seat is rotatably mounted with balls arranged in an annular array and rolled inside the annular groove. Specifically, the docking column is rotated within the rotating seat via an annular seat, and the balls rotate on the inner wall of the annular groove, reducing wear and resistance during rotation.

[0007] Furthermore, both the slide groove and the slider are provided with insertion holes, and the inner wall of the side plate is provided with an insertion shaft that is slidably inserted into the insertion hole; Specifically, when installing the die and the fixed structure, the insert shaft is inserted into the insert hole to lock the slider and the slide groove, and the fixed seat is fixed together with the die.

[0008] Furthermore, the spring is internally provided with a positioning cylinder and a positioning rod that are slidably connected and whose two ends are respectively connected to the adjusting plate and the mounting groove; Specifically, during the extension and retraction of spring one, positioning rod one slides inside positioning cylinder one, guiding spring one to avoid deviation during the extension and retraction process, and guiding spring one.

[0009] Furthermore, a rotating shaft is rotatably installed inside the storage slot, and a gear is sleeved on the outer wall of the rotating shaft. The adjusting plate is provided with toothed plate one and toothed plate two, which are located inside the upper and lower ends of the storage slot and mesh with the gear. Specifically, when one of the toothed plates moves, the gears mesh to achieve linkage, so that the toothed plates move synchronously relative to each other or away from each other, thereby causing the two side plates to move synchronously with the toothed plates.

[0010] Furthermore, a positioning block one is provided at the lower end of the toothed plate, a positioning block two is provided on the inner wall of the receiving groove, a spring two is provided between the positioning block one and the positioning block two, and a positioning cylinder two and a positioning rod two are slidably installed and located inside the spring two between the positioning block one and the positioning block two. Specifically, positioning block one and positioning block two are elastically supported by spring two, so that the side plate is elastically supported by toothed plate one. When spring two extends or retracts, it is slidably guided by positioning cylinder two and positioning rod two.

[0011] 2. Beneficial effects Compared with existing technologies, the advantages of this utility model are: In this utility model, the hydraulic lifting structure of the fixed seat and the stamping structure moves longitudinally, the punch and the fixed seat are inserted and installed, and after the slider is inserted into the slide groove, the slider is locked by the insertion shaft inserted laterally into the slider and the slide groove, thereby realizing the locking of the fixed seat and the adjusting plate. During installation of the fixed base and the die, the rotating docking post aligns with the docking groove, the first magnetic block of the adjusting plate aligns with the third magnetic block, and the spiral pin aligns with the spiral groove. The magnetic attraction of the first magnetic block attracts the third magnetic block, causing the spiral pin to rotate inside the spiral groove. During this process, an upward squeezing force is applied to the die, ensuring that the docking post is completely located in the docking groove. During disassembly, the second magnetic block aligns with the third magnetic block. Through the principle of magnetic repulsion, the die slides down by its own weight, and the docking post automatically rotates and disengages from the docking groove. Furthermore, the die descends slowly through the rotation of the spiral pin and spiral groove, avoiding the direct detachment of the die which could easily injure assembly personnel. This achieves convenient installation and magnetic positioning of the die while improving safety during assembly.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a side view of the three-dimensional structure of the present invention; Figure 2 This is a front-view three-dimensional structural diagram of the fixing base of this utility model; Figure 3 This is a three-dimensional sectional view of the assembly of the docking groove and docking column of this utility model. Figure 4 This is a top view of the first angle of the three-dimensional structure of the adjustment plate of this utility model. Figure 5 This is a top view of the second angle of the three-dimensional structure of the adjustment plate of this utility model; Figure 6 This is a three-dimensional sectional view of the socket groove of this utility model. Figure 7 This is a partial bottom-view three-dimensional structural diagram of the slider of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Fixed base; 2. Stamping die; 3. Positioning structure; 301. Mounting groove; 302. Adjusting plate; 303. Top groove; 304. Magnetic block one; 305. Magnetic block two; 306. Positioning cylinder one; 307. Spring one; 308. Positioning rod one; 309. Handle; 310. Rotating seat; 311. Connecting groove; 312. Spiral groove; 313. Connecting post; 314. Spiral pin; 315. Ring seat; 316. Ball bearing; 317. Magnetic block three; 4. Fixed structure; 401. Side plate; 402. Positioning block one; 403. Spring two; 404. Positioning block two; 405. Gear; 406. Tooth plate two; 407. Storage groove; 408. Rotating shaft; 409. Tooth plate one; 410. Positioning rod two; 411. Positioning cylinder two; 412. Insertion hole; 413. Insertion shaft; 414. Slider; 415. Slide groove. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Example 1 Please see Figure 1-7 As shown, this embodiment is a magnetic positioning structure for quick mold replacement of a sealing mechanism, including a fixed base 1 and a punch 2; Positioning structure 3 includes a mounting groove 301 inside the front end of the die 2, an adjusting plate 302 slidably inserted into the mounting groove 301, a top groove 303 symmetrically distributed inside the upper end of the adjusting plate 302, a first magnetic block 304 and a second magnetic block 305 fixed inside the top groove 303, a rotating seat 310 embedded inside the lower end of the fixed seat 1, a ring seat 315 rotatably installed inside the rotating seat 310, a docking post 313 located at the lower end of the ring seat 315, and a mounting groove 301 inside the die 2. The upper end of the die 2 has a docking groove 311 that is slidably installed with the docking post 313; a spiral groove 312 that is spirally distributed on the inner wall of the docking groove 311; a spiral pin 314 that is spirally located on the outer wall of the docking post 313; a magnetic block 317 that is fixed at the lower end of the docking post 313 and is magnetically attracted to the first magnetic block 304 and magnetically repelled by the second magnetic block 305; a spring 307 that is connected to the adjusting plate 302 and the mounting groove 301; and a handle 309 that is fixed at the front end of the adjusting plate 302. The outer wall of the ring seat 315 is provided with an annular groove, and the inner wall of the rotating seat 310 is rotatably mounted with balls 316 arranged in an annular array and rolled inside the annular groove. The spring 307 has a sliding insertion connection inside, and the two ends are respectively connected to the adjusting plate 302 and the mounting groove 301. The positioning cylinder 306 and the positioning rod 308 are provided inside. Use positioning structure 3; During installation, the magnetic block 317 at the lower end of the docking post 313 is magnetically attracted to the magnetic block 304 in the top groove 303 of the adjusting plate 302. This drives the spiral pin 314 on the outer wall of the docking post 313 to rotate and cut into the spiral groove 312 on the inner wall of the docking groove 311, thus achieving docking between the die 2 and the fixed base 1. During disassembly, grasping the handle 309 at the front end of the adjusting plate 302 causes the magnetic block 305 to repel the magnetic block 317. Under its own weight, the die 2 slowly slides down, and the spiral pin 314 rotates in the opposite direction along the spiral groove 312 to disengage, preventing... To mitigate the risk of direct fall, the magnetic attraction between magnetic block 304 and magnetic block 317 enables the automatic screwing of the docking post 313, simplifying manual alignment. The helical engagement of the spiral pin 314 and the spiral groove 312 converts axial force into rotational force, ensuring the smooth insertion or disengagement of the docking post 313 and reducing impact wear. The combination of magnetic repulsion and spiral guidance allows the die 2 to descend at a controllable speed, eliminating the safety hazard of accidental punch detachment in traditional structures, reducing the risk of operator injury, and improving the safety of die 2 assembly.

[0021] Example 2 Please see Figure 1-7 As shown, and; The fixed structure 4 includes a storage groove 407 inside the upper end of the fixed base 1, side plates 401 located at both ends of the storage groove 407, slide grooves 415 opened on both sides of the fixed base 1, and sliders 414 located on both sides of the upper end of the die 2 and slidably installed inside the slide grooves 415. Both the slide groove 415 and the slider 414 have insertion holes 412 inside, and the inner wall of the side plate 401 is provided with a sliding shaft 413 that is slidably inserted into the insertion hole 412. A rotating shaft 408 is rotatably installed inside the storage slot 407. A gear 405 is sleeved on the outer wall of the rotating shaft 408. A toothed plate 409 and a toothed plate 406 are evenly distributed on opposite ends of the adjustment plate 302, located inside the upper and lower ends of the storage slot 407 and meshing with the gear 405. A positioning block 402 is provided at the lower end of the toothed plate 409, a positioning block 404 is provided on the inner wall of the storage groove 407, a spring 403 is provided between the positioning block 402 and the positioning block 404, and a positioning cylinder 411 and a positioning rod 410 are provided between the positioning block 402 and the positioning block 404 and are slidably installed and located inside the spring 403. Use of fixed structure 4; With the docking post 313 inserted into the docking groove 311 and the slider 414 completely located inside the slide groove 415, after the sliders 414 on both sides of the die 2 are inserted into the slide groove 415 of the fixed seat 1, the insert shaft 413 in the side plate 401 passes through the reserved insertion hole 412 of the slide groove 415 and the slider 414 in the transverse direction, forming a mechanical lock and enhancing the structural stability. The receiving groove 407 is equipped with a gear 405 driven by the rotating shaft 408. When the gear 405 is pushed to rotate by the pull of the side plate 401, the gear 405 meshes and drives the other gear plate 406 to move outward synchronously, causing the two side plates 401 to open at equal distances, ensuring that the insert shaft 413 is accurately aligned with the insertion hole 412. The gear 405 transmission ensures that the two side plates 401 move synchronously, avoiding structural deformation caused by unilateral force. A spring 307 and a positioning cylinder 306 are set between the adjusting plate 302 and the mounting groove 301. When the spring 307 extends or retracts, the positioning rod 308 slides along the positioning cylinder 306 to prevent the adjusting plate 302 from shifting. The gear plate 409 is elastically supported by the spring 403. The elastic force of the spring 403 allows the insertion shaft 413 to be elastically inserted into the insertion hole 412, simplifying the operation process. It is worth noting that during stamping, the fixed seat 1 and the die 2 fit tightly together, avoiding the positioning structure 3 and the fixed structure 4 from directly bearing the stamping force, so that the positioning structure 3 and the fixed structure 4 are stable in use and the stamping is effective.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic positioning structure for quick mold changing in a sealing mechanism, characterized in that: Includes a fixed base (1) and a punch (2); The positioning structure (3) includes a mounting groove (301) opened inside the front end of the die (2), an adjusting plate (302) slidably inserted into the mounting groove (301), a top groove (303) symmetrically distributed inside the upper end of the adjusting plate (302), a magnetic block one (304) and a magnetic block two (305) fixed inside the top groove (303), a rotating seat (310) embedded in the lower end of the fixed seat (1), a ring seat (315) rotatably installed inside the rotating seat (310), a docking post (313) located at the lower end of the ring seat (315), and a mounting groove (301) opened inside the die (2). The upper end of the die (2) has a sliding groove (311) that is slidably installed with the docking post (313), a spiral groove (312) that is spirally distributed on the inner wall of the docking groove (311), a spiral pin (314) that is spirally located on the outer wall of the docking post (313), a magnetic block three (317) that is magnetically attracted to magnetic block one (304) and magnetically repelled by magnetic block two (305) and fixed at the lower end of the docking post (313), a spring one (307) that is connected to the adjusting plate (302) and the mounting groove (301), and a handle (309) that is fixed at the front end of the adjusting plate (302). as well as; The fixed structure (4) includes a storage groove (407) inside the upper end of the fixed seat (1), side plates (401) located at both ends of the storage groove (407), a slide groove (415) opened on both sides of the fixed seat (1), and a slider (414) located on both sides of the upper end of the die (2) and slidably installed inside the slide groove (415).

2. The magnetic positioning structure (3) for quick mold replacement of a sealing mechanism according to claim 1, characterized in that: The outer wall of the ring seat (315) is provided with an annular groove, and the inner wall of the rotating seat (310) is rotatably mounted with balls (316) arranged in an annular array and rolled inside the annular groove.

3. The magnetic positioning structure (3) for quick mold replacement of a sealing mechanism according to claim 1, characterized in that: Both the groove (415) and the slider (414) have insertion holes (412) inside, and the inner wall of the side plate (401) is provided with a slidable insertion shaft (413) that is inserted into the insertion hole (412).

4. The magnetic positioning structure (3) for quick mold replacement of a sealing mechanism according to claim 1, characterized in that: The spring (307) is provided with a positioning cylinder (306) and a positioning rod (308) that are slidably connected and connected at both ends to the adjusting plate (302) and the mounting groove (301) respectively.

5. The magnetic positioning structure (3) for quick mold replacement of a sealing mechanism according to claim 1, characterized in that: The storage slot (407) is rotatably mounted with a rotating shaft (408), and a gear (405) is sleeved on the outer wall of the rotating shaft (408). The adjusting plate (302) is evenly provided with toothed plate one (409) and toothed plate two (406) located inside the upper and lower ends of the storage slot (407) and meshing with the gear (405).

6. The magnetic positioning structure (3) for quick mold replacement of a sealing mechanism according to claim 5, characterized in that: A positioning block 1 (402) is provided at the lower end of the toothed plate 1 (409), and a positioning block 2 (404) is provided on the inner wall of the storage groove (407). A spring 2 (403) is provided between the positioning block 1 (402) and the positioning block 2 (404). A positioning cylinder 2 (411) and a positioning rod 2 (410) are provided between the positioning block 1 (402) and the positioning block 2 (404) and are slidably installed inside the spring 2 (403).

Citation Information

Patent Citations

  • CN217912495U