Cold-pressing and shaping mechanism of 3D shoe mold clamp

Abstract

This utility model relates to the technical field of cold pressing and shaping mechanism for shoe mold clamps used in computer pattern making machines, specifically to a cold pressing and shaping mechanism for a 3D shoe mold clamp. It adopts a frame, a bottom plate, a middle plate, a top plate, a lower pressing drive assembly, a cold pressing lower mold, a transfer plate, a clamping mold drive assembly, and a cold pressing upper mold that is limited and movablely connected to the clamping mold drive assembly. The cold pressing lower mold has a semi-cylindrical groove, and the bottom surface of the cold pressing upper mold is an arc-shaped curved surface. In actual processing, the flat shoe mold fixture is pre-formed by hot pressing and bending using a hot pressing forming mechanism, and then transferred to the cold pressing and shaping mechanism. The flat shoe mold fixture is placed on the semi-cylindrical groove of the cold pressing lower mold. The downward pressing drive assembly drives the adapter plate, the clamping mold drive assembly, and the cold pressing upper mold to press down, and releases the clamping mold drive assembly from the state of clamping the cold pressing upper mold. The cold pressing upper mold and the cold pressing lower mold cooperate to cold press the flat shoe mold fixture. Cold pressing avoids deformation of the flat shoe mold fixture due to residual heat, which is conducive to cold pressing and shaping the flat shoe mold fixture to obtain a 3D curved surface shoe mold fixture.

Description

Technical Field

[0001] This utility model relates to the technical field of cold pressing and shaping mechanism for shoe mold clamps used in computer pattern making machines, and specifically to a cold pressing and shaping mechanism for a 3D shoe mold clamp. Background Technology

[0002] 3D computer pattern sewing machines, including cylindrical pattern sewing machines, have a cylindrical drive structure and are high-end sewing equipment that integrates computer control, precision mechanics and automation technology. They are designed specifically for sewing three-dimensional curved surfaces. When in use, the cylinder is driven to rotate at a certain angle to sew three-dimensional fabrics such as the curved surfaces of shoe heels.

[0003] Existing cylindrical pattern making machines use curved clamps to hold and shape the fabric to be sewn, then place the curved clamps onto the machine's tray for sewing. Shoe mold clamps are typically made of epoxy fiberglass board. If a hot-press forming mechanism is used to hot-press and bend the flat shoe mold clamp, cooling is required. However, the clamp is prone to deformation due to residual heat during cooling. Currently, there is a lack of a mechanism for cold-pressing and shaping the hot-pressed flat shoe mold clamp. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a cold pressing and shaping mechanism for a 3D shoe mold clamp.

[0005] The purpose of this utility model is achieved through the following technical solution: a cold pressing and shaping mechanism for a 3D shoe mold fixture, including a frame, and a bottom plate, a middle plate, and a top plate all connected to the frame, further including a downward pressing drive assembly connected to the top plate, a cold pressing lower mold connected to the middle plate, a transition plate connected to the output end of the downward pressing drive assembly, a clamping mold drive assembly fixedly connected to the transition plate, and a cold pressing upper mold movably connected to the clamping mold drive assembly for limiting. The clamping mold drive assembly is used to clamp the cold pressing upper mold, the cold pressing lower mold has a semi-cylindrical groove, and the bottom surface of the cold pressing upper mold is an arc-shaped curved surface. The cold pressing upper mold and the cold pressing lower mold cooperate to further cold press and shape the hot-pressed and bent planar shoe mold fixture.

[0006] Preferably, the upper cold-pressing die has a receiving hole along its central axis, and the receiving hole houses a cooling pipe for passing refrigerant. The cooling pipe includes a refrigerant inlet section, a spiral heat exchange section, and a refrigerant outlet section, all of which are housed in the receiving hole and connected in sequence. The inlet of the refrigerant inlet section and the outlet of the refrigerant outlet section are both located at the rear end of the upper cold-pressing die.

[0007] Preferably, the downward driving component is a lifting driving cylinder, and the output end of the downward driving component passes through the top plate and is fixedly connected to the adapter plate.

[0008] Preferably, the adapter plate has a connecting post protruding from the middle, the connecting post has a threaded through hole, and the output end of the downward driving device has a screw section that is threadedly engaged with the threaded through hole.

[0009] Preferably, the clamping mold driving assembly includes a support plate fixedly connected to the adapter plate, a first guide assembly connected to the four corners of the support plate and fixed to the middle plate, a second guide assembly connected to the front and rear ends of the support plate and fixed to the cold pressing upper mold, two telescopic drive cylinders fixedly connected to the bottom of the left and right ends of the support plate, and two clamping blocks fixedly connected to the output ends of the telescopic drive cylinders. The side of the clamping block near the cold pressing upper mold has an arc surface for tightly fitting with the cold pressing upper mold, and the two clamping blocks work together to clamp the cold pressing upper mold.

[0010] Preferably, the first guide assembly includes four first linear bearings fixedly connected to the four corners of the support plate, and four first guide posts slidably connected to each of the first linear bearings and fixed to the middle plate; the second guide assembly includes two second linear bearings fixedly connected to the front and rear ends of the support plate, and two second guide posts slidably connected to each of the second linear bearings and fixed to the cold pressing upper mold.

[0011] Preferably, the first guide assembly further includes a first buffer spring sleeved on the first guide post and clamped between the first linear bearing and the middle plate; the second guide assembly further includes a second buffer spring sleeved on the second guide post and clamped between the second linear bearing and the cold pressing upper die.

[0012] Preferably, a clamping limiting component is connected to the rear end of the cold pressing die, and a clamping alignment component is connected to one side of the cold pressing die. The clamping limiting component and the clamping alignment component work together to position the planar shoe mold clamp formed by hot pressing and bending.

[0013] Preferably, the clamp limiting assembly includes limiting connecting seats connected to both rear ends of the cold pressing die, limiting baffles slidably disposed on the top of the cold pressing die and the top of the limiting connecting seats, and a first locking member detachably connected to the limiting connecting seats and pressing against the limiting baffles. The limiting baffles have a first elongated through hole for the first locking member to pass through. The clamp alignment assembly includes an alignment connecting seat connected to one side of the cold pressing die, an alignment baffle slidably disposed on the top of the alignment connecting seat, and a second locking member detachably connected to the alignment connecting seat and pressing against the alignment baffles. The alignment baffles have a clearance through hole for the second locking member to pass through, and the alignment connecting seat has a second elongated through hole communicating with the clearance through hole and for the second locking member to pass through.

[0014] Preferably, the first locking component is a first bolt, and the top of the limiting connecting seat is provided with a threaded hole that is threadedly engaged with the first bolt; the second locking component includes a second bolt and a first nut, the second bolt passing through the clearance through hole and the second elongated through hole in sequence and threadedly engaged with the first nut.

[0015] The beneficial effects of this utility model are as follows: The cold pressing and shaping mechanism of the 3D shoe mold fixture of this utility model adopts a frame, and a bottom plate, a middle plate and a top plate connected to the frame, as well as a downward pressing drive assembly connected to the top plate, a cold pressing lower mold connected to the middle plate, a transition plate connected to the output end of the downward pressing drive assembly, a clamping mold drive assembly fixedly connected to the transition plate, and a cold pressing upper mold that is limited and movablely connected to the clamping mold drive assembly. The clamping mold drive assembly is used to clamp the cold pressing upper mold. The cold pressing lower mold has a semi-cylindrical groove. The bottom surface of the cold pressing upper mold is an arc-shaped curved surface. The cold pressing upper mold and the cold pressing lower mold are used together to further cold press and shape the hot-pressed and bent planar shoe mold fixture. In actual processing, the flat shoe mold fixture is pre-formed by hot pressing and bending using a hot pressing forming mechanism, and then transferred to the cold pressing and shaping mechanism. The flat shoe mold fixture is placed on the semi-cylindrical groove of the cold pressing lower mold. The downward pressing drive assembly drives the adapter plate, the clamping mold drive assembly, and the cold pressing upper mold to press down, and releases the clamping mold drive assembly from the state of clamping the cold pressing upper mold. The cold pressing upper mold and the cold pressing lower mold cooperate to cold press the flat shoe mold fixture. Cold pressing avoids deformation of the flat shoe mold fixture due to residual heat, which is conducive to cold pressing and shaping the flat shoe mold fixture to obtain a 3D curved surface shoe mold fixture. Attached Figure Description

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

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is a partial exploded view of the structure of this utility model;

[0019] The attached figures are labeled as follows: 1. Frame; 2. Base plate; 3. Middle plate; 4. Top plate; 5. Downward pressure drive assembly; 6. Cold pressing lower die; 7. Adapter plate; 8. Clamping die drive assembly; 81. Support plate; 82. First guide assembly; 821. First linear bearing; 822. First guide post; 823. First buffer spring; 83. Second guide assembly; 831. Second linear bearing; 832. Second guide post; 833. Second buffer spring; 84. Telescopic drive cylinder; 85. Clamping block; 9. Cold pressing upper die; 10. Semi-cylindrical groove; 11. Accommodating hole; 12. 121. Cooling pipe; 122. Refrigerant inlet; 123. Spiral heat exchanger; 124. Refrigerant outlet; 13. Connecting post; 14. Threaded through hole; 15. Screw section; 16. Adjusting nut; 17. Clamp limiting assembly; 171. Limiting connecting seat; 172. Limiting baffle; 173. First locking element; 18. Clamp alignment assembly; 181. Alignment connecting seat; 182. Alignment baffle; 183. Second locking element; 1831. Second bolt; 1832. First nut; 19. First elongated through hole; 20. Second elongated through hole; 21. Screw hole. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0021] like Figure 1-3 As shown, a cold pressing and shaping mechanism for a 3D shoe mold fixture includes a frame 1, and a bottom plate 2, a middle plate 3, and a top plate 4 all connected to the frame 1. It also includes a downward pressing drive assembly 5 connected to the top plate 4, a cold pressing lower mold 6 connected to the middle plate 3, a transition plate 7 connected to the output end of the downward pressing drive assembly 5, a clamping mold drive assembly 8 fixedly connected to the transition plate 7, and a cold pressing upper mold 9 movably connected to the clamping mold drive assembly 8. The clamping mold drive assembly 8 is used to clamp the cold pressing upper mold 9. The cold pressing lower mold 6 has a semi-cylindrical groove 10, and the bottom surface of the cold pressing upper mold 9 is an arc-shaped curved surface. The cold pressing upper mold 9 and the cold pressing lower mold 6 cooperate to further cold press and shape the hot-pressed and bent planar shoe mold fixture.

[0022] In actual processing, the flat shoe mold fixture is pre-formed by hot pressing and bending by a hot pressing forming mechanism and then transferred to the cold pressing and shaping mechanism. The flat shoe mold fixture is placed on the semi-cylindrical groove 10 of the cold pressing lower mold 6. The pressing drive assembly 5 drives the adapter plate 7, the clamping mold drive assembly 8 and the cold pressing upper mold 9 to press down, and releases the clamping mold drive assembly 8 from the state of clamping the cold pressing upper mold 9. The cold pressing upper mold 9 and the cold pressing lower mold 6 cooperate to cold press the flat shoe mold fixture. Cold pressing avoids deformation of the flat shoe mold fixture due to residual heat, which is conducive to the cold pressing and shaping of the flat shoe mold fixture to obtain a 3D curved surface shoe mold fixture.

[0023] Furthermore, the cold-pressing upper mold 9 has a receiving hole 11 along its central axis. The receiving hole 11 accommodates a cooling pipe 12 for passing refrigerant. The cooling pipe 12 includes a refrigerant inlet section 121, a spiral heat exchange section 122, and a refrigerant outlet section 123, all housed in the receiving hole 11 and connected in sequence. The inlet of the refrigerant inlet section 121 and the outlet of the refrigerant outlet section 123 are both located at the rear end of the cold-pressing upper mold 9. In actual processing, the existing refrigeration system is used to connect the cooling pipe 12. The refrigeration system introduces refrigerant into the cooling pipe 12, and the refrigerant heats the cooling pipe 12 and the cold-pressing upper mold 9, causing the cold-pressing upper mold 9 to cool down. This allows the flat shoe mold fixture to cool down more quickly when the cold-pressing upper mold 9 is pressing the flat shoe mold fixture. Moreover, the spiral heat exchange section 122 of the cooling pipe 12 helps to improve the heat exchange effect. The refrigeration system is existing technology and is only used as an application here.

[0024] Furthermore, the downward driving component 5 is a lifting driving cylinder, which is a standard cylinder. The output end of the downward driving component 5 passes through the top plate 4 and is fixedly connected to the adapter plate 7. Further still, a connecting post 13 protrudes from the center of the adapter plate 7. The connecting post 13 has a threaded through hole 14, and the output end of the downward driving device has a screw section 15 that is threadedly engaged with the threaded through hole 14. The lifting driving cylinder is a standard cylinder, and its output end itself has a screw section 15, which is threadedly connected to an adjusting nut 16. During installation, the screw section 15 of the lifting driving cylinder is threadedly locked to the threaded through hole 14 of the connecting post 13, and the adjusting nut 16 abuts against the connecting post 13, facilitating the assembly / disassembly and replacement of the adapter and the clamping drive component 8.

[0025] Furthermore, the clamping mold driving assembly 8 includes a support plate 81 fixedly connected to the adapter plate 7, a first guide assembly 82 connected to the four corners of the support plate 81 and fixed to the middle plate 3, a second guide assembly 83 connected to the front and rear ends of the support plate 81 and fixed to the cold pressing upper mold 9, two telescopic drive cylinders 84 fixedly connected to the bottom of the left and right ends of the support plate 81, and two clamping blocks 85 fixedly connected to the output ends of the telescopic drive cylinders 84. The clamping block 85 has an arc surface on the side near the cold pressing upper mold 9 for close contact with the cold pressing upper mold 9. The two clamping blocks 85 work together to clamp the cold pressing upper mold 9. When it is necessary to lift the cold pressing upper mold 9, the downward driving assembly 5 drives the clamping mold driving assembly 8 to move downward, and the two telescopic drive cylinders 84 drive the clamping blocks 85 to clamp the cold pressing upper mold 9 respectively. Then, the downward driving assembly 5 drives the clamping mold driving assembly 8 to move upward, causing the cold pressing upper mold 9 to rise. When a cold-pressed flat shoe mold fixture is required, the downward pressure drive component 5 drives the clamping mold drive component 8 to move downward. At the same time, the two telescopic drive cylinders 84 drive the two clamping blocks 85 to release the clamping state of the cold-pressing upper mold 9. Since there are many types of flat shoe mold fixtures, with different sizes, widths, and thicknesses, using the gravity of the cold-pressing upper mold 9 to cold-press the flat shoe mold fixture helps to avoid the downward pressure drive component 5 directly driving the cold-pressing upper mold 9 to press down, which would damage the flat shoe mold fixture. This is also beneficial for adapting to the processing of various flat shoe mold fixtures with different sizes and thicknesses.

[0026] Furthermore, the first guide assembly 82 includes four first linear bearings 821 fixedly connected to the four corners of the support plate 81, and four first guide posts 822 slidably connected to the first linear bearings 821 and fixed to the middle plate 3; the second guide assembly 83 includes two second linear bearings 831 fixedly connected to the front and rear ends of the support plate 81, and two second guide posts 832 slidably connected to the second linear bearings 831 and fixed to the cold pressing upper mold 9; the first linear bearings 821 and the first guide posts 822 are used in combination, and the second linear bearings 831 and the second guide posts 832 are used in combination, which helps to improve the stability of the support plate 81 and the cold pressing upper mold 9 during the lifting process.

[0027] Furthermore, the first guide assembly 82 also includes a first buffer spring 823 sleeved on the first guide post 822 and clamped between the first linear bearing 821 and the middle plate 3; the second guide assembly 83 also includes a second buffer spring 833 sleeved on the second guide post 832 and clamped between the second linear bearing 831 and the cold pressing upper mold 9, which helps to prevent the support plate 81 from directly pressing the cold pressing lower mold 6 when the downward driving assembly 5 drives the support plate 81 to press down, thus avoiding damage to the planar shoe mold fixture.

[0028] Furthermore, a clamping limiting component 17 is connected to the rear end of the cold pressing die 6, and a clamping alignment component 18 is connected to one side of the cold pressing die 6. The clamping limiting component 17 and the clamping alignment component 18 work together to position the hot-pressed and bent planar shoe mold clamp.

[0029] Furthermore, the clamping limiting assembly 17 includes limiting connecting seats 171 connected to both sides of the rear end of the cold pressing die 6, limiting baffles 172 slidably disposed on the top of the cold pressing die 6 and the top of the limiting connecting seats 171, and a first locking member 173 detachably connected to the limiting connecting seats 171 and pressing against the limiting baffles 172. The limiting baffles 172 have a first elongated through hole 19 for the first locking member 173 to pass through. The clamping alignment assembly 18 The assembly includes an alignment connecting seat 181 connected to one side of the cold pressing die 6, an alignment baffle 182 slidably disposed on the top of the alignment connecting seat 181, and a second locking member 183 detachably connected to the alignment connecting seat 181 and pressing against the alignment baffle 182. The alignment baffle 182 has a clearance through hole for the second locking member 183 to pass through, and the alignment connecting seat 181 has a second elongated through hole 20 that communicates with the clearance through hole and is used for the second locking member 183 to pass through.

[0030] Furthermore, the first locking member 173 is a first bolt, and the top of the limiting connecting seat 171 is provided with a threaded hole 21 that is threadedly engaged with the first bolt; the second locking member 183 includes a second bolt 1831 and a first nut 1832, the second bolt 1831 passes through the clearance through hole and the second elongated through hole 20 in sequence and is threadedly engaged with the first nut 1832.

[0031] By using the aforementioned clamping limit assembly 17 and clamping alignment assembly 18, and adjusting the positions of the limiting baffle 172 and the alignment baffle 182, it is beneficial to adapt to the processing of various planar shoe mold clamps with different sizes and widths.

[0032] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A cold pressing and shaping mechanism for a 3D shoe mold clamp, comprising a frame, and a bottom plate, a middle plate, and a top plate all connected to the frame, characterized in that: It also includes a pressing drive assembly connected to the top plate, a cold-pressing lower die connected to the middle plate, a transition plate connected to the output end of the pressing drive assembly, a clamping die drive assembly fixedly connected to the transition plate, and a cold-pressing upper die that is limited and movably connected to the clamping die drive assembly. The clamping die drive assembly is used to clamp the cold-pressing upper die. The cold-pressing lower die has a semi-cylindrical groove. The bottom surface of the cold-pressing upper die is an arc-shaped curved surface. The cold-pressing upper die and the cold-pressing lower die are used together to further cold-press and shape the hot-pressed and bent planar shoe mold fixture.

2. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 1, characterized in that: The upper cold-pressing die has a receiving hole along its central axis. The receiving hole houses a cooling pipe for passing refrigerant. The cooling pipe includes a refrigerant inlet section, a spiral heat exchange section, and a refrigerant outlet section, all of which are housed in the receiving hole and connected in sequence. The inlet of the refrigerant inlet section and the outlet of the refrigerant outlet section are both located at the rear end of the upper cold-pressing die.

3. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 1, characterized in that: The downward pressure drive assembly is a lifting drive cylinder, and the output end of the downward pressure drive assembly passes through the top plate and is fixedly connected to the adapter plate.

4. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 1, characterized in that: The adapter plate has a connecting post protruding from the middle, and the connecting post has a threaded through hole. The output end of the downward driving component has a screw section that is threadedly engaged with the threaded through hole.

5. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 1, characterized in that: The clamping drive assembly includes a support plate fixedly connected to the adapter plate, a first guide assembly connected to the four corners of the support plate and fixed to the middle plate, a second guide assembly connected to the front and rear ends of the support plate and fixed to the cold pressing upper mold, two telescopic drive cylinders fixedly connected to the bottom of the left and right ends of the support plate, and two clamping blocks fixedly connected to the output ends of the telescopic drive cylinders. The side of the clamping block near the cold pressing upper mold has an arc surface for tightly fitting with the cold pressing upper mold. The two clamping blocks work together to clamp the cold pressing upper mold.

6. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 5, characterized in that: The first guide assembly includes four first linear bearings fixedly connected to the four corners of the support plate, and four first guide posts slidably connected to each of the first linear bearings and fixed to the middle plate; the second guide assembly includes two second linear bearings fixedly connected to the front and rear ends of the support plate, and two second guide posts slidably connected to each of the second linear bearings and fixed to the cold pressing upper mold.

7. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 6, characterized in that: The first guide assembly further includes a first buffer spring sleeved on the first guide post and clamped between the first linear bearing and the middle plate; the second guide assembly further includes a second buffer spring sleeved on the second guide post and clamped between the second linear bearing and the cold pressing upper die.

8. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 1, characterized in that: The rear end of the cold pressing die is connected to a clamping limiting component, and one side of the cold pressing die is connected to a clamping alignment component. The clamping limiting component and the clamping alignment component work together to position the hot-pressed and bent planar shoe mold clamp.

9. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 8, characterized in that: The clamp limiting assembly includes limiting connecting seats connected to both rear ends of the cold pressing die, limiting baffles slidably disposed on the top of the cold pressing die and the top of the limiting connecting seats, and a first locking member detachably connected to the limiting connecting seats and pressing against the limiting baffles. The limiting baffles have a first elongated through hole for the first locking member to pass through. The clamp alignment assembly includes an alignment connecting seat connected to one side of the cold pressing die, an alignment baffle slidably disposed on the top of the alignment connecting seat, and a second locking member detachably connected to the alignment connecting seat and pressing against the alignment baffles. The alignment baffles have a clearance through hole for the second locking member to pass through, and the alignment connecting seat has a second elongated through hole communicating with the clearance through hole and for the second locking member to pass through.

10. The cold pressing and shaping mechanism for a 3D shoe mold clamp according to claim 9, characterized in that: The first locking component is a first bolt, and the top of the limiting connecting seat is provided with a threaded hole that is threaded to the first bolt; the second locking component includes a second bolt and a first nut, the second bolt passing through the clearance through hole and the second elongated through hole in sequence and threaded to the first nut.

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