Process for manufacturing a rear sleeve for sports shoes

Abstract

This invention relates to the field of sports shoe manufacturing technology, and particularly to a manufacturing process for a sports shoe heel counter. The process utilizes a sports shoe heel counter manufacturing device, which includes a positioning frame, supporting legs, a support unit, and a guiding unit. Existing manufacturing processes have the following drawbacks: because the heel counter requires glue, used heel counters cannot be recycled and reused, thus affecting the production volume of heel counters; burrs on the heel counter cannot be removed, thus affecting the later performance of the heel counter. The heel counter produced by this invention can be recycled and reused, requires no glue, is completely environmentally friendly, and has a simple process. Furthermore, this invention can remove burrs from the bottom, rear sidewall, and upper sidewall of the heel counter, thereby simultaneously removing burrs from multiple directions, ensuring the smoothness of the heel counter and its later performance.

Description

Technical Field

[0001] This invention relates to the field of sports shoe manufacturing technology, and in particular to a manufacturing process for the heel counter of sports shoes. Background Technology

[0002] The heel counter of athletic shoes generally refers to the inner lining of the heel. Existing athletic shoe heel counters are generally made by applying glue to a plastic product, then attaching latex or sponge, finally attaching glue, and then using a molding machine to heat-press and shape it.

[0003] However, the existing manufacturing process has the following drawbacks: 1. Since the heel cover needs to be glued to latex or sponge or four-elastane fabric, the used heel cover cannot be recycled and reused. In addition, the glue is not environmentally friendly and the process is complicated, which affects the production of the heel cover.

[0004] 2. After the heel counter is hot-pressed, the glue is squeezed out from between the heel counter and the four-layer elastic fabric, forming burrs. Existing technology can only hot-press the heel counter and cannot directly remove the burrs, thus affecting the later performance of the heel counter. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a manufacturing process for the heel counter of athletic shoes, which utilizes a manufacturing device for the heel counter of athletic shoes. This device includes a positioning frame, supporting legs, a support unit, and a guide unit. Supporting legs are installed at the four corners of the lower end of the positioning frame, the support unit is provided on the positioning frame, and the guide unit is installed at the upper end of the positioning frame.

[0006] The supporting unit includes a supporting roller. A through hole is opened in the middle of the positioning frame. Multiple supporting rollers are rotatably connected between the left and right side walls of the through hole from front to back at equal intervals. Multiple first scrapers and grinding strips are staggered between the left and right side walls of the through hole from front to back at equal intervals. The first scrapers and grinding strips are spaced apart from the supporting rollers. A storage chamber is installed at the lower end of the positioning frame.

[0007] The guiding unit includes fixed rods. Multiple fixed rods are installed at equal intervals from left to right on the front side of the upper end of the positioning frame. An L-shaped plate is provided on the rear side of the upper end of the positioning frame. A guide plate is installed between the rear end of the fixed rod and the vertical section of the L-shaped plate. A pushing component is provided between the fixed rod and the guide plate. A grinding component is provided on the guide plate. A deburring component is installed on the L-shaped plate. A lifting component, an air blowing component, and a fine grinding component are provided on the deburring component.

[0008] The process of manufacturing a sports shoe heel cover using the above-mentioned sports shoe heel cover manufacturing device includes the following steps:

[0009] S1. Molded part injection molding: First, molten thermoplastic elastomer is injected into the first injection mold, and after injection molding, a mold part is obtained.

[0010] S2, shoe heel cover molding and placement: fix the mold plate and four elastic cloth in the second injection mold, then inject molten thermoplastic elastomer between the mold plate and four elastic cloth in the second injection mold, injection mold to obtain shoe heel cover, and then place the injection molded shoe heel cover on the support unit (3).

[0011] S3, shoe heel cover conveying: the shoe heel cover is conveyed to the rear side through the guide unit (4);

[0012] S4. Deburring of the heel cover: The heel cover is deburred by the support unit (3) and the guide unit (4);

[0013] S5. Remove the heel cover: Remove the finished heel cover.

[0014] As a preferred embodiment of the present invention, the pushing assembly includes a limiting slide groove. Two limiting slide grooves are symmetrically arranged vertically through the guide plate. A sliding plate is slidably connected between the multiple limiting slide grooves. Mounting plates are provided on the fixed rods on the left and right sides of the positioning frame and on the side of the guide plate away from the center of the positioning frame. A lead screw is rotatably connected between the two mounting plates. A first forward and reverse motor connected to the lead screw is mounted on the mounting plate on the fixed rod through a motor base.

[0015] As a preferred embodiment of the present invention, the grinding assembly includes a fixed plate, and two adjacent guide plates are mounted on opposite sides of the fixed plate. An execution plate is provided on the front side of the fixed plate through multiple telescopic spring rods. Two elastic telescopic plates are symmetrically hinged to the side of the execution plate away from the telescopic spring rods through torsion springs. A grinding block is hinged to the side of the elastic telescopic plates away from the execution plate.

[0016] As a preferred embodiment of the present invention, the deburring assembly includes a top extension spring rod. A pressing plate is installed at the bottom of the horizontal section of the L-shaped plate through multiple top extension spring rods. Two connecting plates are symmetrically arranged on the lower end of the pressing plate. Two abutting rollers are symmetrically connected to the opposite sides of the connecting plates. A positioning plate is installed in the middle of the opposite side of the connecting plates. Multiple second scrapers are arranged at equal intervals from front to back at the lower end of the positioning plate. The lower end of the second scrapers is inclined to the front.

[0017] As a preferred embodiment of the present invention, the lifting assembly includes a rotating shaft. Multiple rotating shafts are rotatably connected at equal intervals from left to right on the horizontal section of the L-shaped plate. The multiple rotating shafts are connected to each other by belts. A second forward and reverse motor connected to any one of the rotating shafts is provided on the front side of the horizontal section of the L-shaped plate through a motor cover. Two circular grooves are symmetrically opened inside the horizontal section of the L-shaped plate about the top extension spring rod. A winding wheel sleeved on the outer wall of the rotating shaft is rotatably connected in the circular groove. A pull rope is wound on the outer wall of the winding wheel. The end of the pull rope away from the winding wheel passes through one end of the L-shaped plate and is connected to the pressing plate.

[0018] As a preferred embodiment of the present invention, the air blowing assembly includes an air pump. An air pump is installed on the upper end of a positioning plate, and an installation groove is provided inside the positioning plate. An air storage chamber connected to the air outlet of the air pump is installed inside the installation groove. Two air blowing cylinders connected to the air storage chamber are installed at the lower end of the air storage chamber. The air blowing cylinders and the second scraper are arranged alternately. The lower end of the air blowing cylinder passes through the positioning plate and tilts forward.

[0019] As a preferred embodiment of the present invention, the fine grinding assembly includes a linkage shaft, two linkage shafts are rotatably connected to opposite sides of the connecting plate, the linkage shafts are staggered with the second scraper, and the two linkage shafts are connected by belt drive, a drive motor is mounted on the outer wall of the connecting plate via a motor frame, a rotating roller is sleeved on the outer wall of the linkage shaft, and the distance between the bottom of the rotating roller and the lower end of the positioning plate is greater than the distance between the bottom of the second scraper and the lower end of the positioning plate.

[0020] As a preferred embodiment of the present invention, the upper end of the first scraper is inclined to the rear, the upper end of the grinding strip is provided with a plurality of grinding protrusions, and the distance between the upper end of the first scraper and the grinding protrusions and the upper end of the positioning frame is greater than the distance between the upper end of the support roller and the upper end of the positioning frame.

[0021] As a preferred embodiment of the present invention, the thermoplastic elastomer mentioned in steps S1 and S2 is one of PPE, PPU and silicone.

[0022] The beneficial effects of the present invention are as follows: 1. The supporting unit and guiding unit provided by the present invention can remove burrs from the bottom, rear sidewall and upper sidewall of the shoe heel cover, thereby removing burrs from the shoe heel cover from multiple directions at the same time, thus ensuring the smoothness of the shoe heel cover and the performance of the shoe heel cover in the later use. In addition, the shoe heel cover made by the present invention can be recycled and reused, does not require glue, is completely environmentally friendly, and has a simple process.

[0023] 2. The support unit provided by the present invention supports the heel cover of the shoe through the support roller, so that the guide unit can drive the heel cover of the shoe to move backward. During this period, the burrs on the bottom of the heel cover of the shoe can be scraped off by the first scraper, and the bottom of the heel cover of the shoe can be polished by the polishing strip to ensure the smoothness of the bottom of the heel cover of the shoe.

[0024] 3. The guiding unit provided by the present invention pushes the heel cover of the shoe to the rear side through the sliding plate, and then performs multi-directional deburring and polishing treatment on the heel cover of the shoe through the supporting unit, the polishing component, the deburring component and the fine polishing component to ensure the smoothness of the heel cover of the shoe.

[0025] 4. The air blowing component provided by the present invention can blow away burrs and debris on the upper side of the shoe heel cover by blowing air from the air blower, preventing burrs and debris from remaining on the surface of the shoe heel cover and affecting its subsequent processing. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a process flow diagram of the present invention.

[0028] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0029] Figure 3 This is a partial cross-sectional view of the present invention.

[0030] Figure 4 This is the invention Figure 3 A magnified view of a portion at point E.

[0031] Figure 5 This is a cross-sectional view of the present invention (viewed from right to left).

[0032] Figure 6 This is a three-dimensional structural diagram of the pushing component and the grinding component of the present invention.

[0033] Figure 7 This is a partial cross-sectional view of the deburring component and the lifting component of the present invention.

[0034] Figure 8 This is a partial cross-sectional view of the contact roller and the fine grinding assembly of the present invention.

[0035] Figure 9 This is the invention Figure 8 A magnified view of a portion of point D.

[0036] In the diagram: 1. Positioning frame; 2. Support leg; 3. Support unit; 31. Support roller; 32. First scraper; 33. Grinding strip; 34. Storage chamber; 4. Guide unit; 41. Fixed rod; 42. L-shaped plate; 43. Guide plate; 44. Pushing assembly; 441. Limiting groove; 442. Sliding plate; 443. Mounting plate; 444. Lead screw; 445. First forward and reverse motor; 45. Grinding assembly; 451. Fixed plate; 452. Telescopic spring rod; 453. Actuating plate; 454. Elastic telescopic plate; 45 5. Grinding block; 46. Deburring assembly; 461. Top extension spring rod; 462. Pressing plate; 463. Connecting plate; 464. Abutting roller; 465. Positioning plate; 466. Second scraper; 47. Lifting assembly; 471. Rotating shaft; 472. Second forward and reverse motor; 473. Winding wheel; 474. Pull rope; 48. Air blowing assembly; 481. Air pump; 482. Air storage chamber; 483. Air blower; 49. Fine grinding assembly; 491. Linkage shaft; 492. Drive motor; 493. Rotating roller; 5. Shoe heel cover. Detailed Implementation

[0037] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] See Figure 2 and Figure 3 A manufacturing process for the heel cover of a sports shoe, which uses a manufacturing device for the heel cover of a sports shoe. The manufacturing device for the heel cover of a sports shoe includes a positioning frame 1, a support leg 2, a support unit 3, and a guide unit 4. The support leg 2 is installed at each of the four corners at the lower end of the positioning frame 1, the support unit 3 is provided on the positioning frame 1, and the guide unit 4 is installed at the upper end of the positioning frame 1.

[0039] See Figure 3 , Figure 4 and Figure 5 The supporting unit 3 includes a supporting roller 31. A through hole is provided in the middle of the positioning frame 1. Multiple supporting rollers 31 are rotatably connected between the left and right side walls of the through hole at equal intervals from front to back. Multiple first scrapers 32 and grinding strips 33 are alternately installed between the left and right side walls of the through hole at equal intervals from front to back. The first scrapers 32 and grinding strips 33 are spaced apart from the supporting rollers 31. A storage chamber 34 is installed at the lower end of the positioning frame 1. The upper end of the first scraper 32 is inclined to the rear. Multiple grinding protrusions are provided at the upper end of the grinding strips 33. The distance between the upper end of the first scraper 32 and the grinding protrusions and the upper end of the positioning frame 1 is greater than the upper end of the supporting roller 31. The distance between the upper end of the positioning frame 1 and the upper end; During operation, the injection-molded shoe heel sleeve 5 is first placed on the upper end of the support roller 31, so that the support roller 31 supports the shoe heel sleeve 5, so that the lower end of the shoe heel sleeve 5 comes into contact with the first scraper 32 and the grinding strip 33. Then, the guide unit 4 drives the shoe heel sleeve 5 to move backward. During this period, the first scraper 32 can scrape off the burrs on the bottom of the shoe heel sleeve 5, and the grinding strip 33 can grind the bottom of the shoe heel sleeve 5 to ensure the smoothness of the bottom of the shoe heel sleeve 5, so that the guide unit 4 can deburr the top and the back of the shoe heel sleeve 5.

[0040] See Figure 5 , Figure 6 , Figure 8 and Figure 9The guide unit 4 includes fixed rods 41. Multiple fixed rods 41 are evenly spaced from left to right on the front upper side of the positioning frame 1. An L-shaped plate 42 is provided on the rear upper side of the positioning frame 1. A guide plate 43 is installed between the rear end of the fixed rods 41 and the vertical section of the L-shaped plate 42. A pushing assembly 44 is provided between the fixed rods 41 and the guide plate 43. A grinding assembly 45 is provided on the guide plate 43. A deburring assembly 46 is installed on the L-shaped plate 42. The deburring assembly 46 is equipped with a lifting assembly 47, an air blowing assembly 48, and a fine grinding assembly 49. The extrusion assembly 44 includes a limiting slide groove 441. Two limiting slide grooves 441 are symmetrically arranged vertically on the guide plate 43. A sliding plate 442 is slidably connected between the multiple limiting slide grooves 441. Mounting plates 443 are provided on the side of the fixing rod 41 on the left and right sides of the positioning frame 1 and the side of the guide plate 43 away from the middle of the positioning frame 1. A lead screw 444 is rotatably connected between the two mounting plates 443. A first forward and reverse motor 445 connected to the lead screw 444 is mounted on the mounting plate 443 on the fixing rod 41 through a motor base.

[0041] See Figure 6 The grinding assembly 45 includes a fixed plate 451. The fixed plates 451 are installed on opposite sides of two adjacent guide plates 43. An execution plate 453 is provided on the front side of the fixed plate 451 via multiple telescopic spring rods 452. The telescopic spring rods 452 always apply a forward pushing force to the execution plate 453. On the side of the execution plate 453 away from the telescopic spring rods 452, two elastic telescopic plates 454 are symmetrically hinged vertically via torsion springs. The fixed end and the telescopic end of the elastic telescopic plates 454 are always stretched under their elastic action. A grinding block 455 is hinged on the side of the elastic telescopic plates 454 away from the execution plate 453. In the initial state, the torsion springs cause the elastic telescopic plates 454 to always have a relative rotational torsional force. At this time, the grinding blocks 455 of the two elastic telescopic plates 454 abut against each other. In addition, the torsion angle of the elastic telescopic plates 454 can be adjusted according to the processing requirements to prevent the elastic telescopic plates 454 from driving the grinding blocks 455 to contact the outside and thus obstruct the rearward movement of the shoe heel cover 5.

[0042] During operation, the shoe heel cover 5 is placed on the upper end of the support roller 31 and simultaneously positioned between two adjacent guide plates 43, allowing the left and right sides of the shoe heel cover 5 to slide against the guide plates 43. The guide plates 43 abut against the rear side of the sliding plate 442. At this time, the first forward / reverse motor 445 is activated, driving the lead screw 444 to rotate forward. The lead screw 444 drives the sliding plate 442 to move rearward along the limiting groove 441, thereby using the sliding plate 442 to position the shoe heel cover 5. Pushing backward causes the supporting unit 3 to deburr and polish the bottom of the heel sleeve 5. When the rear side of the heel sleeve 5 comes into contact with the two polishing blocks 455, the two polishing blocks 455 are subjected to the squeezing force of the heel sleeve 5 and drive the two elastic telescopic plates 454 to rotate in opposite directions. This causes the elastic telescopic plates 454 to move the polishing blocks 455 up or down along the rear sidewall of the heel sleeve 5, thereby polishing the rear side of the heel sleeve 5 and preventing burrs from remaining on the rear side of the heel sleeve 5. The two grinding blocks 455 are flush with the upper and lower sides of the rear sidewall of the shoe heel sleeve 5, respectively, to prevent the grinding blocks 455 from contacting the outside and affecting the normal movement of the shoe heel sleeve 5. Subsequently, the shoe heel sleeve 5 continues to move backward, so the telescopic spring rod 452 can retract under the compression of the shoe heel sleeve 5. During this period, the burrs on the upper sidewall of the shoe heel sleeve 5 can be removed by the deburring component 46, lifting component 47, blowing component and fine grinding component 49. After the deburring of the heel cover 5 is completed, the first forward and reverse motor 445 drives the lead screw 444 to reverse. The lead screw 444 drives the sliding plate 442 to move forward and reset. At this time, the heel cover 5 does not have the squeezing force to move backward. The two elastic telescopic plates 454 rotate relative to each other under the action of the torsion spring and drive the grinding block 455 to move accordingly. In this way, the grinding block 455 applies a pushing force to the heel cover 5, so that the heel cover 5 moves to the front of the positioning frame 1, so that the heel cover 5 can be removed.

[0043] See Figure 7 , Figure 8 and Figure 9 The deburring assembly 46 includes a top extension spring rod 461. A pressing plate 462 is installed at the bottom of the horizontal section of the L-shaped plate 42 via multiple top extension spring rods 461. Two connecting plates 463 are symmetrically arranged on the left and right sides of the lower end of the pressing plate 462. Two abutting rollers 464 are symmetrically rotatably connected to the opposite sides of the connecting plates 463. A positioning plate 465 is installed in the middle of the opposite side of the connecting plates 463. Multiple second scrapers 466 are evenly spaced from front to back at the lower end of the positioning plate 465. The lower ends of the second scrapers 466 are inclined to the forward side.

[0044] See Figure 7The lifting assembly 47 includes a rotating shaft 471. Multiple rotating shafts 471 are rotatably connected at equal intervals from left to right along the horizontal section of the L-shaped plate 42. These rotating shafts 471 are connected by belts. A second forward / reverse motor 472, connected to any one of the rotating shafts 471, is installed on the front side of the horizontal section of the L-shaped plate 42 via a motor cover. Two circular grooves are symmetrically formed inside the horizontal section of the L-shaped plate 42 about the top extension spring rod 461. Rotary connecting parts fitted onto the rotating shafts 471 are rotatably connected within these circular grooves. 1. The outer wall of the winding wheel 473 has a pull rope 474 wound around its outer wall. The end of the pull rope 474 away from the winding wheel 473 passes through the L-shaped plate 42 and is connected to the pressing plate 462. In the initial state, the second forward and reverse motor 472 drives the winding wheel 473 to rotate forward through the rotating shaft 471. The winding wheel 473 winds up the pull rope 474 and drives the pressing plate 462 together with the abutment roller 464 to move upward, so as to prevent the abutment roller 464 from affecting the rear shoe cover 5 to move backward.

[0045] See Figure 9 The air blowing assembly 48 includes an air pump 481. The air pump 481 is installed on the upper end of the positioning plate 465. The positioning plate 465 has an installation groove inside. An air storage chamber 482 connected to the air outlet of the air pump 481 is installed inside the installation groove. Two air blowing cylinders 483 connected to the lower end of the air storage chamber 482 are installed. The air blowing cylinders 483 and the second scraper 466 are arranged alternately. The lower end of the air blowing cylinder 483 passes through the positioning plate 465 and tilts forward.

[0046] See Figure 8 and Figure 9 The fine grinding component 49 includes a linkage shaft 491. Two linkage shafts 491 are rotatably connected to opposite sides of the connecting plate 463. The linkage shafts 491 and the second scraper 466 are arranged alternately, and the two linkage shafts 491 are connected by belt drive. A drive motor 492 is mounted on the outer wall of the connecting plate 463 via a motor frame. A rotating roller 493 is sleeved on the outer wall of the linkage shaft 491. The distance between the bottom of the rotating roller 493 and the lower end of the positioning plate 465 is greater than the distance between the bottom of the second scraper 466 and the lower end of the positioning plate 465.

[0047] During operation, when the sliding plate 442 pushes the heel sleeve 5 backward to below the contact roller 464, the second forward / reverse motor 472 drives the winding wheel 473 to reverse and unwind the pull rope 474. This causes the pressing plate 462 to move the contact roller 464 downward under the action of the extension spring rod 461, making the contact roller 464 roll into contact with the upper sidewall of the heel sleeve 5. Subsequently, the second scraper 466 contacts the upper sidewall of the heel sleeve 5 and cuts off the burrs on its surface. During this process, the air pump 481 is activated. Air pump 481 fills the air storage chamber 482 with gas, and then the air in the air storage chamber 482 is blown out through air blower 483 to remove burrs and debris from the upper side of the shoe heel cover 5, preventing burrs and debris from remaining on the surface of the shoe heel cover 5 and affecting its subsequent processing. At the same time, drive motor 492 is started, and drive motor 492 drives rotating roller 493 to rotate through linkage shaft 491, so that rotating roller 493 polishes the upper side of shoe heel cover 5 to ensure the smoothness of the upper side of shoe heel cover 5.

[0048] See Figure 1 The process of manufacturing a sports shoe heel cover using the aforementioned sports shoe heel cover manufacturing device includes the following steps:

[0049] S1. Molded sheet injection molding: First, molten thermoplastic elastomer is injected into the first injection mold. After injection molding, a mold is obtained. The first injection mold is an existing injection mold, and the thermoplastic elastomer is one of PPE, PPU and silicone. PPE and PPU are existing high-temperature resistant thermoplastic resins, and silicone is an existing highly active adsorbent material.

[0050] S2. Shoe heel cover molding and placement: Fix the mold plate and four elastic cloths in the second injection mold, and then inject molten thermoplastic elastomer between the mold plate and four elastic cloths in the second injection mold to injection mold the shoe heel cover. Then place the injection molded shoe heel cover on the upper end of the support roller 31 and place it between two adjacent guide plates 43, so that the left and right sides of the shoe heel cover 5 slide with the guide plates 43. The support roller 31 supports the shoe heel cover 5, so that the lower end of the shoe heel cover 5 contacts the first scraper 32 and the grinding strip 33. The second injection mold is also an existing injection mold, and the thermoplastic elastomer is one of PPE, PPU and silicone. PPE and PPU are existing high temperature resistant thermoplastic resins, and silicone is an existing highly active adsorbent material.

[0051] S3. Shoe back cover conveying: The first forward and reverse motor 445 drives the lead screw 444 to rotate forward, and the lead screw 444 drives the sliding plate 442 to move backward along the limiting slide groove 441, thereby pushing the shoe back cover 5 backward through the sliding plate 442.

[0052] S4. Deburring the heel cover: As the sliding plate 442 pushes the heel cover 5 backward, the first scraper 32 removes the burrs on the bottom of the heel cover 5, and the grinding strip 33 grinds the bottom of the heel cover 5. When the rear side of the heel cover 5 contacts the two grinding blocks 455, the two grinding blocks 455 are subjected to the squeezing force of the heel cover 5 and drive the two elastic telescopic plates 454 to rotate in opposite directions. This causes the elastic telescopic plates 454 to drive the grinding blocks 455 to move up or down along the rear sidewall of the heel cover 5, thereby grinding the rear side of the heel cover 5. When the sliding plate 442 pushes the heel cover 5 backward to below the contact roller 464, the second forward and reverse motor 472 drives the winding wheel 473 to reverse and unwind the pull rope 474, making... The pressing plate 462, under the action of the top extension spring rod 461, drives the contact roller 464 to move downward, so that the contact roller 464 rolls into contact with the upper side wall of the shoe heel cover 5. Then, the second scraper 466 contacts the upper side wall of the shoe heel cover 5 and cuts the burrs on its surface. During this period, the air pump 481 fills the air storage chamber 482 with gas and blows it out through the air blower 483, so as to remove the burrs and debris on the upper side of the shoe heel cover 5 and prevent the burrs and debris from remaining on the surface of the shoe heel cover 5 and affecting its subsequent processing. At the same time, the drive motor 492 is started. The drive motor 492 drives the rotating roller 493 to rotate through the linkage shaft 491, so that the rotating roller 493 polishes the upper side of the shoe heel cover 5. In this way, the shoe heel cover 5 can be deburred in all directions.

[0053] S5. Removal of the shoe heel cover: After the deburring of the shoe heel cover 5 is completed, the first forward and reverse motor 445 drives the lead screw 444 to reverse. The lead screw 444 drives the sliding plate 442 to move forward and reset. At this time, the two elastic telescopic plates 454 rotate relative to each other under the action of the torsion spring and drive the grinding block 455 to move accordingly. In this way, the grinding block 455 applies a pushing force to the shoe heel cover 5, so that the shoe heel cover 5 moves to the front of the positioning frame 1, so that the shoe heel cover 5 can be removed.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A process for manufacturing a rear sleeve of a sports shoe using a device for manufacturing a rear sleeve of a sports shoe, which comprises a positioning frame (1), support legs (2), a supporting unit (3) and a guiding unit (4), characterized in that: The positioning frame (1) is equipped with support legs (2) at the four corners at the lower end, and a support unit (3) is provided on the positioning frame (1). A guide unit (4) is installed on the upper end of the positioning frame (1). The supporting unit (3) includes a supporting roller (31). The positioning frame (1) has a through hole in the middle. Multiple supporting rollers (31) are rotatably connected between the left and right side walls of the through hole from front to back at equal intervals. Multiple first scrapers (32) and grinding strips (33) are alternately installed between the left and right side walls of the through hole from front to back at equal intervals. The first scrapers (32) and grinding strips (33) are spaced apart from the supporting rollers (31). A storage chamber (34) is installed at the lower end of the positioning frame (1). The guide unit (4) includes a fixed rod (41). Multiple fixed rods (41) are installed at equal intervals from left to right on the front side of the upper end of the positioning frame (1). An L-shaped plate (42) is provided on the rear side of the upper end of the positioning frame (1). A guide plate (43) is installed between the rear end of the fixed rod (41) and the vertical section of the L-shaped plate (42). A pushing assembly (44) is provided between the fixed rod (41) and the guide plate (43). A grinding assembly (45) is provided on the guide plate (43). A deburring assembly (46) is installed on the L-shaped plate (42). A lifting assembly (47), an air blowing assembly (48), and a fine grinding assembly (49) are provided on the deburring assembly (46). The grinding assembly (45) includes a fixed plate (451). The fixed plates (451) are installed on opposite sides of two adjacent guide plates (43). An execution plate (453) is provided on the front side of the fixed plate (451) through multiple telescopic spring rods (452). Two elastic telescopic plates (454) are symmetrically hinged to the side of the execution plate (453) away from the telescopic spring rods (452) through torsion springs. A grinding block (455) is hinged to the side of the elastic telescopic plate (454) away from the execution plate (453). The torsion springs make the elastic telescopic plates (454) always have a relative rotational torsional force. At this time, the grinding blocks (455) of the two elastic telescopic plates (454) abut against each other. The process of manufacturing a sports shoe heel cover using the above-mentioned sports shoe heel cover manufacturing device includes the following steps: S1. Molded part injection molding: First, molten thermoplastic elastomer is injected into the first injection mold, and after injection molding, a mold part is obtained. S2, shoe heel cover molding and placement: fix the mold plate and four elastic cloth in the second injection mold, then inject molten thermoplastic elastomer between the mold plate and four elastic cloth in the second injection mold, injection mold to obtain shoe heel cover, and then place the injection molded shoe heel cover on the support unit (3). S3, shoe heel cover conveying: the shoe heel cover is conveyed to the rear side through the guide unit (4); S4. Deburring of the heel cover: The heel cover is deburred by the support unit (3) and the guide unit (4); S5. Remove the heel cover: Remove the finished heel cover.

2. The process for making a sports shoe rear cover according to claim 1, wherein: The pushing assembly (44) includes a limiting slide groove (441). Two limiting slide grooves (441) are symmetrically arranged vertically on the guide plate (43). A sliding plate (442) is slidably connected between the multiple limiting slide grooves (441). Mounting plates (443) are provided on the side of the fixing rod (41) on the left and right sides of the positioning frame (1) and the guide plate (43) away from the middle of the positioning frame (1). A lead screw (444) is rotatably connected between the two mounting plates (443). The mounting plate (443) on the fixing rod (41) is mounted with a first forward and reverse motor (445) connected to the lead screw (444) through a motor base.

3. The process for making a sports shoe rear cover according to claim 1, wherein: The deburring assembly (46) includes a top extension spring rod (461). A pressing plate (462) is installed at the bottom of the horizontal section of the L-shaped plate (42) through multiple top extension spring rods (461). Two connecting plates (463) are symmetrically arranged on the lower end of the pressing plate (462). Two abutting rollers (464) are symmetrically rotated on the opposite sides of the connecting plates (463). A positioning plate (465) is installed in the middle of the opposite side of the connecting plates (463). Multiple second scrapers (466) are evenly spaced from front to back on the lower end of the positioning plate (465). The lower end of the second scrapers (466) is inclined to the front.

4. The process for making a rear sleeve for an athletic shoe of claim 3 wherein: The lifting assembly (47) includes a rotating shaft (471). The horizontal section of the L-shaped plate (42) is rotatably connected to multiple rotating shafts (471) at equal intervals from left to right. The multiple rotating shafts (471) are connected to each other by belts. A second forward and reverse motor (472) connected to any one of the rotating shafts (471) is provided on the front side of the horizontal section of the L-shaped plate (42) through a motor cover. Two circular grooves are symmetrically opened inside the horizontal section of the L-shaped plate (42) about the top extension spring rod (461). A winding wheel (473) sleeved on the outer wall of the rotating shaft (471) is rotatably connected in the circular groove. A pull rope (474) is wound on the outer wall of the winding wheel (473). One end of the pull rope (474) away from the winding wheel (473) passes through one end of the L-shaped plate (42) and is connected to the pressing plate (462).

5. The process for making a sports shoe rear cover according to claim 3, wherein: The air blowing assembly (48) includes an air pump (481). The air pump (481) is installed on the upper end of the positioning plate (465). An installation groove is opened inside the positioning plate (465). An air storage chamber (482) connected to the air outlet end of the air pump (481) is installed inside the installation groove. Two air blowing cylinders (483) connected to the lower end of the air storage chamber (482) are installed. The air blowing cylinders (483) and the second scraper (466) are arranged alternately. The lower end of the air blowing cylinder (483) passes through the positioning plate (465) and tilts forward.

6. The process for making a sports shoe rear cover according to claim 3, wherein: The fine grinding assembly (49) includes a linkage shaft (491). Two linkage shafts (491) are rotatably connected to opposite sides of the connecting plate (463). The linkage shafts (491) and the second scraper (466) are arranged alternately, and the two linkage shafts (491) are connected by belt drive. A drive motor (492) is installed on the outer wall of the connecting plate (463) through a motor frame. A rotating roller (493) is sleeved on the outer wall of the linkage shaft (491). The distance between the bottom of the rotating roller (493) and the lower end of the positioning plate (465) is greater than the distance between the bottom of the second scraper (466) and the lower end of the positioning plate (465).

7. The process for making a sports shoe rear cover according to claim 1, wherein: The upper end of the first scraper (32) is tilted to the rear, and the upper end of the grinding strip (33) is provided with multiple grinding protrusions. The distance between the upper end of the first scraper (32) and the grinding protrusions and the upper end of the positioning frame (1) is greater than the distance between the upper end of the support roller (31) and the upper end of the positioning frame (1).

8. The process for making a sports shoe rear cover according to claim 1, wherein: The thermoplastic elastomer is one of PPE, PPU, and silicone.

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