Quick locking mechanism for foamed sole mold

Abstract

This utility model discloses a quick locking mechanism for foam shoe sole molds, including a lower mold and an upper mold. The lower mold and the upper mold are connected by a hinge to form a folding mold. A handle for operation is fixedly connected to the upper mold, and a U-shaped frame is fixedly connected to the lower mold. A clamping member for fixing the handle is provided in the U-shaped frame. This utility model drives the screw to rotate by rotating the torsion wheel. The inclined groove on the sliding rod and the sliding edge of the straight rod form a wedge transmission cooperation, which converts the horizontal displacement into a vertical lifting force, pushing the rectangular plate and the lifting rod to rise. This causes the clamping plate to rotate around the horizontal rod and lock into the clamping groove of the handle. At the same time, the magnetic attraction of the first magnetic plate and the second magnetic plate, as well as the multiple limiting of the insertion rod and the arc block in the slot, the third magnetic plate and the fourth magnetic plate, achieve quick and stable locking of the handle. The operation is labor-saving, and the mold has good sealing and stability after closing, effectively preventing loosening caused by working vibration.

Description

Technical Field

[0001] This utility model relates to the field of shoe manufacturing technology, and more specifically, to a quick locking mechanism for foamed shoe sole molds. Background Technology

[0002] In the production and processing of foamed shoe soles, mold closing and locking are crucial steps to ensure product molding quality and production efficiency. During foamed shoe sole molding, precise mold closing is essential for shaping the raw material. Reliable locking after mold closing directly affects the dimensional accuracy, structural integrity, and stability of the production process. Inadequate mold closing and locking can easily lead to mold misalignment and material overflow during foam molding, resulting in a higher product scrap rate. Furthermore, cumbersome locking operations can significantly restrict production pace and affect batch production efficiency.

[0003] Currently, there are various locking methods used in foam shoe sole molds on the market, such as manual bolt fastening, ordinary buckle locking, or simple hydraulic drive locking.

[0004] However, these existing technologies have certain problems in practical applications: On the one hand, the traditional manual bolt tightening method is cumbersome, and the locking and unlocking process is time-consuming, requiring operators to tighten the bolts one by one, which is difficult to adapt to the high-efficiency requirements of modern mass production. Moreover, manual operation is prone to inconsistent locking accuracy due to uneven force. On the other hand, the stability of some snap-on locking structures is not good. Under the influence of repeated mold opening and closing operations or vibrations during the production process, loosening is likely to occur, which will affect the quality of shoe sole molding. At the same time, although some hydraulically driven locking structures have sufficient locking force, they are complex in structure, have high cost, and are difficult to maintain and repair. They also have problems such as inconvenient disassembly and assembly, and complicated troubleshooting, which increase production auxiliary costs and downtime. Therefore, we urgently need a quick locking mechanism for foam shoe sole molds to solve the above problems. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for a quick locking mechanism for foam shoe sole molds. By rotating the torsion wheel and transmitting it through the screw and wedge, the mechanism converts the force into a lifting force, which drives the clamping plate to engage with the grip clamping groove. Combined with magnetic attraction and elastic clamping, this forms multiple locking mechanisms, achieving rapid and stable locking of the mold and effectively preventing loosening due to working vibration.

[0006] According to a first aspect of this utility model, a quick locking mechanism for a foamed shoe sole mold is provided, including a lower mold and an upper mold. The lower mold and the upper mold are connected by a hinge to form a folding mold. A handle for operation is fixedly connected to the upper mold, and a U-shaped frame is fixedly connected to the lower mold. A retaining member for fixing the handle is provided inside the U-shaped frame. When the retaining member abuts against the handle, a first working state is formed. When the retaining member disengages from the handle, a second working state is formed. A guide rail is fixedly installed at the bottom of the U-shaped frame, and a driving member for driving the retaining member to move is slidably connected inside the guide rail.

[0007] The driving component includes a screw rotatably connected to the guide rail, a first slide groove is provided in the U-shaped frame, a second slide groove is provided on the U-shaped frame that communicates with the first slide groove, a sliding rod is slidably connected to the first slide groove, the bottom of the sliding rod is slidably connected to the guide rail and threadedly connected to the screw, and when the screw rotates, the sliding rod moves along the path of the first slide groove and the second slide groove to form a sliding area;

[0008] The sliding rod has an inclined groove, and the end of the screw passes through the guide rail and is fixedly connected to a torsion wheel. The torsion wheel is covered with an anti-slip pad to facilitate torsion.

[0009] The clamping member includes a third sliding groove formed in the bottom wall of the U-shaped frame. A straight rod is slidably connected in the third sliding groove. The end of the straight rod is provided with a sliding edge that matches the inclined side of the inclined groove. The sliding edge contacts the inclined side of the inclined groove to form a sliding area. When in the sliding area, the sliding edge moves along the inclined side path of the inclined groove to form a pushing area. When in the pushing area, the straight rod moves along the path of the third sliding groove to form a lifting area.

[0010] Optionally, a rectangular plate is provided inside the U-shaped frame. The rectangular plate is connected to the end of the straight rod. The two sides of the rectangular plate slide on the inner wall of the U-shaped frame. A first spring is sleeved on the straight rod. The two ends of the first spring are connected to the U-shaped frame and the rectangular plate. Lifting rods are symmetrically connected to the rectangular plate. Crossbars are symmetrically installed on the U-shaped frame. A clamping plate is rotatably connected to the crossbar. A rotary spring is sleeved on the crossbar. The two ends of the rotary spring abut against the clamping plate and the crossbar respectively to form a reset zone. When in the lifting zone, the rectangular plate and the lifting rod move with the straight rod to form a linkage zone.

[0011] Optionally, a first magnetic suction plate is fixedly installed on the lifting rod by opening a placement slot, an extension plate is integrally formed on the abutment plate, a second magnetic suction plate adapted to the first magnetic suction plate is fixedly installed on the extension plate, and abutment grooves adapted to the abutment plates are symmetrically installed on the handle. When the end of the abutment plate is inserted into the abutment groove and the first magnetic suction plate and the second magnetic suction plate are magnetically attracted, a first working state is formed. When the end of the abutment plate is disengaged from the abutment groove and the first magnetic suction plate and the second magnetic suction plate are released from magnetic attraction, a second working state is formed.

[0012] Optionally, the grip has a slot, and the slot has symmetrically arranged circular holes. A sleeve is fixedly connected to the circular holes, and a sliding rod is slidably connected to the sleeve. A second spring is provided in the sleeve, and the two ends of the second spring are connected to the inner wall of the sleeve and the sliding rod. An arc-shaped block is fixedly connected to the end of the sliding rod. An insertion rod is fixedly connected to the rectangular plate. The insertion rod has symmetrically arranged arc-shaped grooves that match the arc-shaped blocks. When in the first working state, the insertion rod is inserted into the slot, and the arc-shaped block abuts against the inner wall of the arc-shaped groove. When in the second working state, the insertion rod is disengaged from the slot, and the arc-shaped block is disengaged from the arc-shaped groove.

[0013] Optionally, a third magnetic plate is fixedly connected to the inner wall of the slot, and a fourth magnetic plate is fixedly connected to the end of the insertion rod. When in the first working state, the third magnetic plate and the fourth magnetic plate are magnetically attracted, and when in the second working state, the third magnetic plate and the fourth magnetic plate are disengaged.

[0014] Beneficial effects

[0015] 1. This utility model drives the screw to rotate by rotating the torsion wheel. The inclined groove on the sliding rod and the sliding edge of the straight rod form a wedge transmission cooperation, which converts the horizontal displacement into a vertical lifting force, pushing the rectangular plate and the lifting rod to rise. This causes the clamping plate to rotate around the horizontal rod and lock into the clamping groove of the handle. At the same time, the magnetic attraction and locking of the first magnetic attraction plate and the second magnetic attraction plate, as well as the multiple limiting of the insertion rod and the arc block in the slot, the third magnetic attraction plate and the fourth magnetic attraction plate, realize the quick and stable locking of the handle. The operation is labor-saving, and the mold has good sealing and stability after mold closing, effectively preventing loosening caused by working vibration.

[0016] 2. This utility model, by setting a first spring, a rotary spring, and a second spring, reverses the rotation of the torsion wheel during unlocking, resets the sliding rod, cancels the lifting force of the inclined groove, and releases the elastic potential energy of each spring, causing the rectangular plate, straight rod, and lifting rod to automatically fall back. The clamping plate disengages from the clamping groove under the action of the rotary spring, the magnetic attraction structures are released, the arc-shaped block disengages from the arc-shaped groove, and the insertion rod exits the slot, achieving rapid unlocking. The mold opening and closing and demolding operations are convenient, improving production efficiency.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0019] Figure 1 A first-view schematic diagram of the overall structure of a quick-locking mechanism for a foamed shoe sole mold;

[0020] Figure 2 A second-view schematic diagram of the overall structure of a quick-locking mechanism for a foamed shoe sole mold;

[0021] Figure 3 A third-view schematic diagram of the overall structure of a quick-locking mechanism for a foamed shoe sole mold;

[0022] Figure 4 A first cross-sectional view of a quick-locking mechanism for a foamed shoe sole mold;

[0023] Figure 5 A quick-locking mechanism for foam shoe sole molds Figure 4 Enlarged structural diagram at point A in the middle;

[0024] Figure 6 A quick-locking mechanism for foam shoe sole molds Figure 4 Enlarged structural diagram at point B;

[0025] Figure 7 This is a second cross-sectional view of a quick-locking mechanism for a foamed shoe sole mold.

[0026] Figure 8 A quick-locking mechanism for foam shoe sole molds Figure 7 Enlarged structural diagram at point C.

[0027] The diagram shows the following components: 1. Lower mold; 2. Upper mold; 3. Handle; 4. U-shaped frame; 5. Guide rail; 6. Screw; 7. First slide groove; 8. Second slide groove; 9. Sliding rod; 10. Inclined groove; 11. Torsion wheel; 12. Anti-slip pad; 13. Third slide groove; 14. Straight rod; 15. Sliding edge; 16. Rectangular plate; 17. First spring; 18. Lifting rod; 19. Crossbar; 20. Clamping plate; 21. Rotary spring; 22. First magnetic suction plate; 23. Extension plate; 24. Second magnetic suction plate; 25. Clamping groove; 26. Slot; 27. Circular hole; 28. Sleeve; 29. ​​Sliding rod; 30. Second spring; 31. Arc-shaped block; 32. Insertion rod; 33. Arc-shaped groove; 34. Third magnetic suction plate; 35. Fourth magnetic suction plate. Detailed Implementation

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0031] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0032] like Figure 1-8 As shown, a quick-locking mechanism for a foamed shoe sole mold includes a lower mold 1 and an upper mold 2, which are connected by a hinge to form a folding and closing mold.

[0033] The upper mold 2 is fixedly connected to a handle 3 for operation, and the lower mold 1 is fixedly connected to a U-shaped frame 4. The U-shaped frame 4 is provided with a clamping member for fixing the handle 3. When the clamping member abuts against the handle 3, the first working state is formed. When the clamping member is disengaged from the handle 3, the second working state is formed. The bottom of the U-shaped frame 4 is fixedly installed with a guide rail 5.

[0034] Here, the hinge adopts a pin-type hinge structure, with its two ends welded and fixed to the upper surface of the lower mold 1 and the lower surface of the upper mold 2, respectively. Wear-resistant bushings are fitted at the hinge to reduce wear during repeated mold flipping, ensuring smooth mold closing and demolding actions, while limiting the flipping trajectory of the upper mold 2 to ensure precise alignment of the upper and lower molds 1 when the mold is closed. The handle 3 adopts a cylindrical structure and is integrally formed with the upper mold 2. Its outer wall has anti-slip texture, which not only makes it convenient for operators to hold and flip the mold, but also provides a stable force point for the clamping parts when locked. The U-shaped frame 4 is welded from steel plate, and its opening size is adapted to the outer diameter of the handle 3. When the handle 3 is embedded in the U-shaped frame 4, the two side walls of the U-shaped frame 4 can form a horizontal limit on the handle 3 to prevent the handle 3 from shifting left and right after the mold is closed. The guide rail 5 is fixed to the preset mounting groove on the bottom wall of the U-shaped frame 4 by bolts. The length direction of the guide rail 5 is consistent with the axis direction of the screw 6, and its inner wall is finely ground to ensure the straightness of the drive component when sliding.

[0035] Furthermore, the inner wall of the U-shaped frame 4 is provided with a vertical guide groove, which is adapted to the two sides of the rectangular plate 16 to provide additional guidance for the lifting and lowering movement of the rectangular plate 16, so as to avoid the rectangular plate 16 from tilting or getting stuck during the movement and improve the stability of the mechanism movement; the axis of the handle 3 coincides with the center line of symmetry of the U-shaped frame 4, ensuring that the locking force of the clamping member on the handle 3 is evenly distributed and preventing the handle 3 from deforming due to uneven force.

[0036] Furthermore, limit blocks are provided at both ends of the guide rail 5 to limit the travel of the sliding rod 9, preventing the sliding rod 9 from colliding with or jamming with other components due to excessive movement. At the same time, it provides clear end point prompts for the operator, improving the ease of operation. The top edge of the U-shaped frame 4 is chamfered to prevent the handle 3 from colliding and scratching the U-shaped frame 4 when the mold is closed, thus extending the service life of the components.

[0037] The clamping element includes a third slide groove 13 formed in the bottom wall of the U-shaped frame 4. A straight rod 14 is slidably connected in the third slide groove 13. The end of the straight rod 14 is provided with a sliding edge 15 that is adapted to the inclined side of the inclined groove 10. The sliding edge 15 contacts the inclined side of the inclined groove 10 to form a sliding area. When in the sliding area, the sliding edge 15 moves along the inclined side path of the inclined groove 10 to form a pushing area. When in the pushing area, the straight rod 14 moves along the path of the third slide groove 13 to form a lifting area.

[0038] Here, the third slide 13 is a rectangular through groove, the length of which is consistent with the lifting direction of the straight rod 14. The inner wall of the slide is hardened and coated with grease, which can reduce the sliding friction between the straight rod 14 and the slide and improve the smoothness of the lifting of the straight rod 14. The straight rod 14 is made of round steel. One end near the lifting rod 18 is fixedly connected to the rectangular plate 16 by threads, which is convenient for disassembly and maintenance. The sliding edge 15 at the other end is a sloped structure with the same angle as the inclined side of the inclined groove 10. The sloped surface is polished to ensure that it fits tightly with the inclined side of the inclined groove 10 and realizes effective force transmission.

[0039] Furthermore, the edge of the sliding edge 15 is rounded to avoid stress concentration when it comes into contact with the inclined edge of the inclined groove 10, and to reduce jamming during the sliding process. The width of the third sliding groove 13 is matched with the diameter of the straight rod 14 to ensure that the straight rod 14 can be raised and lowered flexibly, while limiting the radial swing of the straight rod 14, ensuring that the sliding edge 15 is always effectively in contact with the inclined edge of the inclined groove 10.

[0040] Furthermore, the axis of the straight rod 14 coincides with the center line of the third slide groove 13, ensuring that the straight rod 14 is subjected to uniform force when it is raised and lowered, and avoiding increased friction or damage to components due to offset; the inclined angle of the inclined side of the inclined groove 10 is set to 45°-60°, and this angle range can form the optimal conversion ratio between the horizontal driving force and the vertical lifting force, which saves effort and ensures lifting efficiency.

[0041] A rectangular plate 16 is provided inside the U-shaped frame 4. The rectangular plate 16 is connected to the end of the straight rod 14. The two sides of the rectangular plate 16 slide on the inner wall of the U-shaped frame 4. A first spring 17 is sleeved on the straight rod 14. The two ends of the first spring 17 are connected to the U-shaped frame 4 and the rectangular plate 16. A lifting rod 18 is symmetrically connected to the rectangular plate 16. A crossbar 19 is symmetrically installed on the U-shaped frame 4. A pressing plate 20 is rotatably connected to the crossbar 19. A rotary spring 21 is sleeved on the crossbar 19. The two ends of the rotary spring 21 abut against the pressing plate 20 and the crossbar 19 respectively to form a reset area. When in the lifting area, the rectangular plate 16 and the lifting rod 18 move with the straight rod 14 to form a linkage area.

[0042] Here, the rectangular plate 16 is cut from steel plate, and its plane is perpendicular to the inner wall of the U-shaped frame 4. Its two sides slide in cooperation with the guide grooves of the inner wall of the U-shaped frame 4, which can ensure that the rectangular plate 16 drives the lifting rod 18 to make a smooth vertical lifting and lowering movement. The first spring 17 is a compression spring. Its initial state is in a pre-compressed state. It is sleeved on the outside of the straight rod 14. Its upper end abuts against the lower surface of the rectangular plate 16 and its lower end abuts against the bottom wall of the U-shaped frame 4. It can provide a stable reset elastic force for the rectangular plate 16, ensuring that the straight rod 14 falls back quickly when unlocking.

[0043] Furthermore, the lifting rod 18 is a cylindrical structure, symmetrically welded to both ends of the upper surface of the rectangular plate 16, with its axis perpendicular to the rectangular plate 16. The top end is hemispherical to reduce friction when in contact with the clamping plate 20 and prevent jamming during the lifting process. The crossbar 19 is machined from a smooth shaft and fixed to the two side walls of the U-shaped frame 4 by a bearing seat. A sliding bearing is installed at the connection with the clamping plate 20 to ensure that the clamping plate 20 can rotate flexibly around the crossbar 19.

[0044] Furthermore, the rotary spring 21 is a torsion spring, sleeved on the outside of the crossbar 19. One end of it is embedded in the preset slot of the abutment plate 20, and the other end abuts against the side wall of the crossbar 19 or the U-shaped frame 4. In the initial state, it is in a pre-tightened state, which can provide a continuous reset torque for the abutment plate 20, ensuring that the abutment plate 20 quickly disengages from the abutment groove 25 when unlocking. The length of the abutment plate 20 is adapted to the width of the handle 3, and its end is a wedge-shaped structure, which facilitates precise insertion into the abutment groove 25 and improves the reliability of locking.

[0045] A first magnetic suction plate 22 is fixedly installed on the lifting rod 18 by means of a placement slot. An extension plate 23 is integrally formed on the clamping plate 20. A second magnetic suction plate 24 adapted to the first magnetic suction plate 22 is fixedly installed on the extension plate 23. A clamping groove 25 adapted to the clamping plate 20 is symmetrically installed on the handle 3. When the end of the clamping plate 20 is inserted into the clamping groove 25 and the first magnetic suction plate 22 and the second magnetic suction plate 24 are magnetically attracted, a first working state is formed. When the end of the clamping plate 20 is disengaged from the clamping groove 25 and the first magnetic suction plate 22 and the second magnetic suction plate 24 are disengaged, a second working state is formed.

[0046] Here, the first magnetic plate 22 is made of permanent magnet material and is fixed in the placement groove at the top of the lifting rod 18 by interference fit. The depth of the placement groove is the same as the thickness of the first magnetic plate 22, ensuring that the surface of the first magnetic plate 22 is flush with the top of the lifting rod 18 and can fully fit with the second magnetic plate 24. The extension plate 23 is integrally formed with the clamping plate 20 and is processed by stamping process, with high structural strength. Its position corresponds to the first magnetic plate 22, ensuring that after the clamping plate 20 is rotated into place, the second magnetic plate 24 can be precisely aligned with the first magnetic plate 22.

[0047] Furthermore, the fixing method of the second magnetic suction plate 24 is the same as that of the first magnetic suction plate 22, and its magnetic pole direction is opposite to that of the first magnetic suction plate 22, ensuring that the two can generate a stable adsorption force and form a double locking effect, effectively preventing the clamping plate 20 from loosening due to vibration during the mold operation; the clamping groove 25 is a rectangular groove, which is opened on both sides of the handle 3. The depth of the groove is adapted to the length of the end of the clamping plate 20, and the inner wall of the groove is smoothed to facilitate the insertion and removal of the clamping plate 20.

[0048] Furthermore, the attraction force of the first magnetic plate 22 and the second magnetic plate 24 is moderate, which can ensure the stability of the locked state without affecting the operating force when unlocking; the length of the extension plate 23 is precisely calculated to ensure that when the end of the clamping plate 20 is fully inserted into the clamping groove 25, the first magnetic plate 22 and the second magnetic plate 24 are just fully attached, avoiding locking failure due to premature or delayed attraction.

[0049] The handle 3 has a slot 26, and circular holes 27 are symmetrically formed inside the slot 26. A sleeve 28 is fixedly connected inside the circular holes 27. A sliding rod 29 is slidably connected inside the sleeve 28. A second spring 30 is provided inside the sleeve 28. The two ends of the second spring 30 are connected to the inner wall of the sleeve 28 and the sliding rod 29. An arc-shaped block 31 is fixedly connected to the end of the sliding rod 29. An insertion rod 32 is fixedly connected to the rectangular plate 16. An arc-shaped groove 33 that matches the arc-shaped block 31 is symmetrically formed on the insertion rod 32. When in the first working state, the insertion rod 32 is inserted into the slot 26, and the arc-shaped block 31 abuts against the inner wall of the arc-shaped groove 33. When in the second working state, the insertion rod 32 is disengaged from the slot 26, and the arc-shaped block 31 is disengaged from the arc-shaped groove 33.

[0050] Here, the slot 26 is opened on the lower end face of the grip 3. It is a cylindrical blind hole with its inner diameter and the outer diameter of the insertion rod 32 in clearance fit to ensure that the insertion rod 32 can be smoothly inserted. The circular holes 27 are symmetrically opened on the side wall of the slot 26 and are fixed with the sleeve 28 by interference fit. The sleeve 28 is a cylindrical hollow structure with its inner wall finely ground to ensure that the slide rod 29 slides smoothly.

[0051] Furthermore, the slide bar 29 has a cylindrical structure, with one end welded and fixed to the arc-shaped block 31, and the other end extending into the sleeve 28 and abutting against the second spring 30; the second spring 30 is a compression spring, initially in a pre-compressed state, which can provide continuous radial thrust to the slide bar 29, pushing the arc-shaped block 31 to always fit against the inner wall of the slot 26; the outer surface of the arc-shaped block 31 has an arc-shaped structure, which is consistent with the curvature of the arc-shaped groove 33, making it easy for the insertion rod 32 to squeeze the arc-shaped block 31 back when it is inserted, while ensuring a tight fit after locking.

[0052] Furthermore, the arc-shaped grooves 33 are symmetrically formed on the side wall of the insertion rod 32, and their depth is adapted to the protruding length of the arc-shaped block 31. When the insertion rod 32 is fully inserted into the slot 26, the arc-shaped block 31 is precisely locked into the arc-shaped grooves 33 under the action of the second spring 30, forming a mechanical locking limit, which, together with the magnetic attraction structure, achieves multiple locking. The top of the insertion rod 32 is chamfered to facilitate guidance when inserted into the slot 26 and reduce insertion resistance.

[0053] The inner wall of the slot 26 is fixedly connected to a third magnetic plate 34, and the end of the insertion rod 32 is fixedly connected to a fourth magnetic plate 35. When in the first working state, the third magnetic plate 34 and the fourth magnetic plate 35 magnetically attract each other. When in the second working state, the third magnetic plate 34 and the fourth magnetic plate 35 disengage from magnetic attraction.

[0054] Here, the third magnetic plate 34 is made of permanent magnet material and is fixed to the bottom inner wall of the slot 26 by adhesive bonding, and its surface is flush with the bottom of the slot 26; the fourth magnetic plate 35 is fixed in the same way as the third magnetic plate 34, and is fixed to the top surface of the insertion rod 32, and its magnetic pole direction is opposite to that of the third magnetic plate 34, so as to ensure that the two can generate a stable attraction force after insertion.

[0055] Furthermore, the third magnetic plate 34 and the fourth magnetic plate 35 are the same size, and their center lines coincide with the axis of the slot 26, ensuring that the two magnetic plates can be precisely aligned and fully fitted after the insertion rod 32 is fully inserted, thus improving the stability of the magnetic locking. The attraction force of the magnetic plates and the elastic force of the second spring 30 work together to enhance the locking effect and easily release the magnetic attraction when unlocking by the downward force of the insertion rod 32.

[0056] Furthermore, anti-slip pads 12 are provided between the third magnetic plate 34 and the inner wall of the slot 26, and between the fourth magnetic plate 35 and the top surface of the insertion rod 32, to prevent the magnetic plates from shifting due to vibration during long-term use and to ensure the reliability of the magnetic structure. The magnetic plates are made of high-temperature resistant permanent magnet material, which can adapt to the temperature environment when the mold is working and avoid magnetic decay caused by high temperature.

[0057] A drive component for moving the abutment is slidably connected inside the guide rail 5. The drive component includes a screw 6 rotatably connected inside the guide rail 5. A first slide groove 7 is provided inside the U-shaped frame 4. A second slide groove 8 connected to the first slide groove 7 is provided on the U-shaped frame 4. A sliding rod 9 is slidably connected to the first slide groove 7. The bottom of the sliding rod 9 is slidably connected to the guide rail 5 and threadedly connected to the screw 6. When the screw 6 rotates, the sliding rod 9 moves along the path of the first slide groove 7 and the second slide groove 8 to form a sliding area.

[0058] Here, the screw 6 adopts a trapezoidal thread structure, which has high strength and good self-locking performance, and can effectively prevent loosening due to vibration after locking. One end of the screw 6 is supported on one end of the guide rail 5 by a deep groove ball bearing, and the other end passes through the guide rail 5 and is fixedly connected to the torsion wheel 11. The bearing can reduce the frictional resistance when the screw 6 rotates, ensuring smooth rotation.

[0059] Furthermore, the first slide groove 7 is formed on the bottom wall or inner side wall of the U-shaped frame 4 and is a rectangular groove. The second slide groove 8 is formed on the bottom wall of the U-shaped frame 4 and is vertically connected to the first slide groove 7. Together, they form the moving channel of the sliding rod 9, ensuring that the sliding rod 9 can only move in the horizontal direction and restricting its vertical displacement. The sliding rod 9 has an L-shaped structure, with one end threadedly connected to the screw 6 and the other end extending into the second slide groove 8. The bottom is slidably engaged with the guide rail 5 to ensure stability during movement.

[0060] Furthermore, the mating surfaces of the sliding rod 9 with the first slide groove 7 and the second slide groove 8 are all smoothed and coated with grease to reduce sliding friction; the screw 6 has a high thread precision grade to ensure the movement accuracy of the sliding rod 9, thereby ensuring that the lifting height of the straight rod 14 is accurately controllable and improving the positioning accuracy of the locking mechanism.

[0061] The sliding rod 9 has an inclined groove 10, and the end of the screw 6 passes through the guide rail 5 and is fixedly connected to the torsion wheel 11. The torsion wheel 11 is covered with an anti-slip pad 12 to facilitate torsion.

[0062] Here, the inclined groove 10 is formed on the upper end face of the sliding rod 9. It is a rectangular inclined groove with a polished inner wall. It fits tightly with the sliding edge 15 of the straight rod 14 to ensure effective force transmission. The inclined groove 10 has limiting surfaces at both ends to limit the sliding stroke of the sliding edge 15 and prevent excessive sliding from damaging the components.

[0063] Furthermore, the torsion wheel 11 has a disc-shaped structure and is fixedly connected to the screw 6 by a flat key, making it easy to disassemble and replace. The diameter of the torsion wheel 11 is larger than the outer diameter of the screw 6, which can increase the operating lever arm and allow the operator to rotate the screw 6 with less effort. The anti-slip pad 12 is made of rubber and is fixed to the outer wall of the torsion wheel 11 by adhesive. Its surface is provided with anti-slip texture, which can increase the friction between the hand and the torsion wheel 11 and prevent slippage during operation.

[0064] Furthermore, the side of the torsion wheel 11 is provided with indicator marks, which, in conjunction with the scale lines on the guide rail 5, can intuitively display the movement position of the sliding rod 9, making it easy for operators to judge the locked or unlocked state; the anti-slip pad 12 has a moderate thickness, which ensures the anti-slip effect without affecting the rotational flexibility of the torsion wheel 11, while also having a certain cushioning effect to improve the operating feel.

[0065] In this invention, during mold closing, the upper mold 2 is folded closed around the hinge position, allowing the handle 3 of the upper mold 2 to be housed inside the U-shaped frame 4 fixed to the lower mold 1, completing the initial alignment and fitting of the molds. Rotating the torsion wheel 11, which has an anti-slip pad 12 on its outer side, drives the screw 6 inside the guide rail 5 to rotate. Relying on the threaded transmission, the sliding rod 9 moves horizontally in a straight line along the first slide groove 7 and the second slide groove 8. During the movement of the sliding rod 9, the inclined groove 10 it has opened forms a wedge transmission engagement with the sliding edge 15 at the end of the straight rod 14, converting the horizontal displacement into a vertical lifting force. The straight rod 14 slides smoothly upward along the third slide groove 13. Simultaneously, the straight rod 14 drives the rectangular plate 16 upward and compresses the first spring 17. The rectangular plate 16 relies on the sliding cooperation between its two sides and the inner wall of the U-shaped frame 4 to achieve lifting guidance. The rectangular plate 16 drives the symmetrically arranged lifting rods 18 to rise simultaneously. The lifting rods 18 push the pressing plate 20 upward, causing the pressing plate 20 to rotate around the horizontal rod 19 and compress the rotary spring 21 until the end of the pressing plate 20 is precisely inserted into the pressing groove 25 on the side wall of the handle 3. At this time, the first magnetic plate 22 on the surface of the lifting rod 18 and the second magnetic plate 23 on the upper extension plate 23 of the pressing plate 20 are assembled. The suction plate 24 completes magnetic adhesion, achieving flipping and limiting fixation. Simultaneously, the insertion rod 32 at the upper end of the rectangular plate 16 is inserted into the slot 26 on the lower end face of the handle 3. The second spring 30 inside the sleeve 28 pushes the sliding rod 29, causing the arc-shaped block 31 to elastically engage with the arc-shaped groove 33 on the outer wall of the insertion rod 32. The third magnetic suction plate 34 on the inner wall of the slot 26 and the fourth magnetic suction plate 35 at the end of the insertion rod 32 magnetically attract and lock each other. The multiple limiting cooperation keeps the mechanism stable in the first locking working state, effectively ensuring the sealing and stability of the mold during mold closing and forming. When performing demolding and unlocking operations, the reverse rotation... The torsion wheel 11 and screw 6 drive the sliding rod 9 to move in the opposite direction to reset. The inclined groove 10 cancels the lifting force on the straight rod 14. The first spring 17 releases elastic potential energy to push the rectangular plate 16 and the straight rod 14 to reset downward. The lifting rod 18 moves down to release the pushing force on the pressing plate 20. The rotary spring 21 drives the pressing plate 20 to rotate and reset and disengage from the pressing groove 25. Each set of magnetic attraction structures disengages in sequence. The arc block 31 disengages from the arc groove 33. The insertion rod 32 completely exits the slot 26. The mechanism switches to the second unlocking working state, and the upper mold 2 can be directly flipped up to complete the demolding and removal of the finished product.

[0066] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A quick-locking mechanism for a foamed shoe sole mold, comprising a lower mold (1) and an upper mold (2), wherein the lower mold (1) and the upper mold (2) are connected by a hinge to form a folding mold, characterized in that: The upper mold (2) is fixedly connected to a handle (3) for operation, and the lower mold (1) is fixedly connected to a U-shaped frame (4). The U-shaped frame (4) is provided with a clamping member for fixing the handle (3). When the clamping member abuts against the handle (3), a first working state is formed. When the clamping member is separated from the handle (3), a second working state is formed. The bottom of the U-shaped frame (4) is fixedly installed with a guide rail (5). A driving member for driving the clamping member to move is slidably connected in the guide rail (5). The driving component includes a screw (6) rotatably connected in the guide rail (5), a first slide groove (7) is provided in the U-shaped frame (4), a second slide groove (8) is provided on the U-shaped frame (4) and communicates with the first slide groove (7), a sliding rod (9) is slidably connected on the first slide groove (7), the bottom of the sliding rod (9) is slidably connected to the guide rail (5) and threadedly connected to the screw (6), when the screw (6) rotates, the sliding rod (9) moves along the path of the first slide groove (7) and the second slide groove (8) to form a sliding area; The sliding rod (9) has an inclined groove (10), the end of the screw (6) passes through the guide rail (5) and is fixedly connected to a torsion wheel (11), and the torsion wheel (11) is covered with an anti-slip pad (12) to facilitate torsion. The clamping member includes a third slide groove (13) formed on the bottom wall of the U-shaped frame (4). A straight rod (14) is slidably connected in the third slide groove (13). The end of the straight rod (14) is provided with a sliding edge (15) that is adapted to the inclined side of the inclined groove (10). The sliding edge (15) contacts the inclined side of the inclined groove (10) to form a sliding area. When in the sliding area, the sliding edge (15) moves along the inclined side path of the inclined groove (10) to form a pushing area. When in the pushing area, the straight rod (14) moves along the path of the third slide groove (13) to form a lifting area.

2. The quick-locking mechanism for a foamed shoe sole mold according to claim 1, characterized in that: A rectangular plate (16) is provided inside the U-shaped frame (4). The rectangular plate (16) is connected to the end of the straight rod (14). The two sides of the rectangular plate (16) slide on the inner wall of the U-shaped frame (4). A first spring (17) is sleeved on the straight rod (14). The two ends of the first spring (17) are connected to the U-shaped frame (4) and the rectangular plate (16). A lifting rod (18) is symmetrically connected on the rectangular plate (16). A crossbar (19) is symmetrically installed on the U-shaped frame (4). A clamping plate (20) is rotatably connected on the crossbar (19). A rotary spring (21) is sleeved on the crossbar (19). The two ends of the rotary spring (21) abut against the clamping plate (20) and the crossbar (19) respectively to form a reset area. When in the lifting area, the rectangular plate (16) and the lifting rod (18) move with the straight rod (14) to form a linkage area.

3. The quick-locking mechanism for a foamed shoe sole mold according to claim 2, characterized in that: The lifting rod (18) is fixedly installed with a first magnetic suction plate (22) through a placement groove. The abutment plate (20) is integrally formed with an extension plate (23). The extension plate (23) is fixedly installed with a second magnetic suction plate (24) that matches the first magnetic suction plate (22). The handle (3) is symmetrically installed with abutment grooves (25) that match the abutment plate (20). When the end of the abutment plate (20) is inserted into the abutment groove (25) and the first magnetic suction plate (22) and the second magnetic suction plate (24) are magnetically attracted, a first working state is formed. When the end of the abutment plate (20) is disengaged from the abutment groove (25) and the first magnetic suction plate (22) and the second magnetic suction plate (24) are released from magnetic attraction, a second working state is formed.

4. The quick-locking mechanism for a foamed shoe sole mold according to claim 3, characterized in that: The grip (3) has a slot (26) with symmetrical circular holes (27) inside. A sleeve (28) is fixedly connected inside the circular holes (27). A sliding rod (29) is slidably connected inside the sleeve (28). A second spring (30) is provided inside the sleeve (28). The two ends of the second spring (30) are connected to the inner wall of the sleeve (28) and the sliding rod (29). An arc-shaped block (3) is fixedly connected to the end of the sliding rod (29). 1) An insertion rod (32) is fixedly connected to the rectangular plate (16). The insertion rod (32) is symmetrically provided with arc-shaped grooves (33) that are adapted to the arc-shaped block (31). When in the first working state, the insertion rod (32) is inserted into the slot (26), and the arc-shaped block (31) abuts against the inner wall of the arc-shaped groove (33). When in the second working state, the insertion rod (32) is disengaged from the slot (26), and the arc-shaped block (31) is disengaged from the arc-shaped groove (33).

5. The quick-locking mechanism for a foamed shoe sole mold according to claim 4, characterized in that: The inner wall of the slot (26) is fixedly connected to a third magnetic plate (34), and the end of the insertion rod (32) is fixedly connected to a fourth magnetic plate (35). When in the first working state, the third magnetic plate (34) and the fourth magnetic plate (35) magnetically attract each other. When in the second working state, the third magnetic plate (34) and the fourth magnetic plate (35) disengage from magnetic attraction.

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