Arch-supporting midsole for sports shoes and method for manufacturing same

Abstract

This invention relates to a midsole for athletic shoes with arch cushioning and its preparation method, belonging to the field of athletic shoe midsole technology. To address the technical problem of uneven raw material distribution caused by existing hot-pressing molding devices, which affects the overall quality and performance of the product, this invention uses a motor-driven screw to move the moving strip and displacement strip, while simultaneously rotating the rotating shaft left and right once. This allows for the uniform spraying of a release agent onto the surfaces of the upper and lower molds. When the receiving cup moves above the cavity of the lower mold, the foamed raw material particles inside the receiving cup can enter the lower mold. Subsequently, the rotation of the elliptical block causes the receiving cup to vibrate. The drive motor then causes the lower mold containing the foamed raw material particles to vibrate evenly before moving it below the upper mold for further processing. This invention enables automatic feeding of foamed raw material particles for athletic shoe midsoles and automatic spraying of a release agent during feeding, thus reducing processing steps.

Description

Technical Field

[0001] This invention relates to the field of sports shoe midsole technology, and in particular to a sports shoe midsole with arch cushioning and its preparation method. Background Technology

[0002] The midsole of an athletic shoe is the part located between the sole and the upper. It is usually made of soft, cushioned materials to provide a comfortable feel and relieve foot pressure. During the production of athletic shoe midsoles, due to the complex structure of the arch area, it is necessary to ensure that the raw material can fill and cover the entire arch area during the molding process. Therefore, the uniformity of the raw material distribution is crucial. Existing thermoforming equipment for producing athletic shoe midsoles typically pours the raw material foam granules into the lower mold and then raises the temperature of the upper and lower molds to achieve the molding process of the athletic shoe midsole. However, uneven pouring of the raw material foam granules into the lower mold can easily occur, resulting in differences in texture and density in the molded athletic shoe midsole. This makes the arch area structurally unstable, affecting the overall quality and performance of the product. Summary of the Invention

[0003] The purpose of this invention is to provide a midsole for athletic shoes with arch cushioning and its preparation method, which can solve the problem mentioned in the background art that existing hot pressing molding devices are prone to uneven raw materials, affecting the overall quality and performance of the product.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a method for preparing an arch-cushioning sports shoe midsole, comprising the following steps: S1: mixing the raw materials for the sports shoe midsole using a mixer to obtain raw material sheets; S2: granulating the raw material sheets into granules using a granulator, and then cooling, drying, and sieving them; S3: irradiating and crosslinking the raw material granules using an irradiation crosslinking device; S4: foaming the raw material granules using a nitrogen foaming device to obtain foamed raw material granules; S5: molding the foamed raw material granules using a molding device to obtain the sports shoe midsole.

[0005] Furthermore, the raw materials in S1 include 50-60 parts of EVA, 5-20 parts of styrene polymers, 1-5 parts of flexible polyvinyl chloride, 1-2 parts of stabilizer, and 0.1-2 parts of calcium carbonate.

[0006] Furthermore, the molding device in S5 includes an installation assembly and an L-shaped installation plate disposed on the upper end of the installation assembly. A quantitative feeding section and a lifting mold assembly are spaced through the upper end of the L-shaped installation plate. A uniform feeding assembly, an anti-sticking assembly, and a rotating mold assembly are disposed on the upper end of the installation assembly, and the uniform feeding assembly is connected to the anti-sticking assembly. The installation assembly includes a processing table fixedly connected to the lower end of the L-shaped installation plate. A collection cavity is formed on the upper end of the processing table. A perforated plate is fixedly connected to the inner wall of the collection cavity, and the upper end of the perforated plate is lower than the upper end of the processing table. The collection cavity is connected to the outside through a pipe. The collection cavity and the perforated plate are used for flow guidance. The uniform feeding assembly includes a moving component and a feeding adjustment component spaced apart on the upper end of the processing table. A shielding component is disposed on the outer surface of the moving component. The upper part is provided with a receiving cup, and there are two sets of receiving cups. The lower end of the receiving cups of both sets of receiving cups is provided with a discharge hole, and there are multiple sets of discharge holes. The lower end of the shielding component is provided with a vibrating component, and the vibrating component is connected to the receiving cup. The moving component is used to drive the receiving cup to move. The shielding component is used to prevent the raw material foaming particles in the receiving cup from falling. The feeding adjustment component is used to adjust the position of the shielding component to control the feeding of the receiving cup. The vibrating component is used to drive the receiving cup to vibrate to promote feeding. The anti-stick component includes a release agent storage box fixedly connected to the inner side of the upper end of the L-shaped mounting plate. The outer surface of the moving component is provided with a swinging component and a displacement component at intervals. The moving component is used to drive the swinging component to swing and drive the displacement component to move, thereby expanding the spraying range of the swinging component and the displacement component.

[0007] Furthermore, the rotating mold assembly includes a drive motor embedded and fixedly connected to the upper end of the processing table. A rotating plate is fixedly connected to the output end of the drive motor. A lower mold is rotatably connected to the upper end of the rotating plate, and two sets of lower molds are symmetrically arranged. A mold cavity is opened at the upper end of the lower mold. The two sets of receiving cups are respectively matched with the positions of the two sets of mold cavities near the material feeding adjustment component. A clearance groove is opened on the rotating plate. A fixing rod is fixedly connected to one side of each set of lower molds. A uniform component is arranged at the upper end of the processing table. The set of fixing rods near the material feeding adjustment component is in contact with the uniform component. The uniform component includes an arc-shaped strip fixedly connected to the upper end of the processing table and a semi-circular block fixedly connected to the upper end of the arc-shaped strip. Multiple sets of semi-circular blocks are arranged along the arc-shaped strip. The fixing rod is in contact with one set of the arc-shaped strip. The arc-shaped strip is used to lift the fixing rod upward, thereby causing the lower mold to vibrate continuously, thereby making the raw material foaming particles inside the lower mold evenly distributed.

[0008] Furthermore, the moving component includes a motor screw drive unit and a guide rod that are fixedly connected at intervals to one side of the L-shaped mounting plate. One end of the guide rod is fixedly connected to the upper end of the processing table through a support block. A moving strip is provided through the outer surface of the motor screw drive unit and the guide rod. The motor screw drive unit is used to drive the moving strip to move.

[0009] Furthermore, the shielding component includes a limiting plate fixedly connected to one side of the moving strip and a first mounting plate fixedly connected to the lower end of the moving strip. Two sets of limiting plates are provided, with the two sets of receiving cups respectively penetrating through the two sets of limiting plates. A first spring is fixedly connected to one side of the first mounting plate, and a connecting strip is fixedly connected to the other end of the first spring. Two pins are fixedly connected at intervals to one side of the first mounting plate, and the pins are movably connected through the connecting strip. Two shielding plates are fixedly connected to the lower end of the connecting strip. The two sets of shielding plates are respectively positioned in contact with the lower part of the receiving cup. A T-shaped transmission rod is fixedly connected to the side of the shielding plate closest to the feeding adjustment component. The limiting plate is used to limit the position of the receiving cup, and the shielding plate is used to prevent the raw material foaming particles inside the receiving cup from falling out.

[0010] Furthermore, the vibration component includes two transmission plates fixedly connected to the outer surfaces of the two sets of receiving cups, respectively. Mounting strips are fixedly connected to the lower ends of both sets of limiting plates. A rotating rod is rotatably connected between the two sets of mounting strips. Elliptical blocks are fixedly connected to both ends of the rotating rod. The elliptical blocks are respectively in contact with the lower ends of the two sets of transmission plates. A gear is fixedly connected to the middle of the rotating rod. A rack is fixedly connected to one side of the L-shaped mounting plate, and the gear and rack are matched in position. The teeth of the rack match the wider part of the mold cavity in the lower mold. The elliptical blocks are used to drive the transmission plates to vibrate, thereby causing the receiving cups to vibrate and promoting the falling of the foamed raw material particles inside the receiving cups.

[0011] Furthermore, the material feeding adjustment component includes a second mounting plate fixedly connected to the upper end of the processing table. Sliding strips are slidably connected through both sides of the second mounting plate, and a sliding groove is provided on the second mounting plate for the sliding strips to slide. The sliding groove matches the position of the mold cavity of the lower mold. The position of the sliding strip matches the position of the T-shaped transmission rod. A transmission block is fixedly connected to one end of the sliding strip. A mounting block is fixedly connected to one side of the second mounting plate. A second spring is fixedly connected between the mounting block and the transmission block, and the elastic force of the second spring is greater than that of the first spring.

[0012] Furthermore, the swing component includes a rotating shaft rotatably connected to one side of the L-shaped mounting plate, a support bar rotatably connected to the other end of the rotating shaft, the lower end of the support bar being fixedly connected to the upper end of the processing table, a triangular guide plate being fixedly connected to one side of the moving bar, and two sets of triangular guide plates being provided, the two sets of triangular guide plates forming a guide groove, and the guide groove being a zigzag shape, an embedded rod being fixedly connected to the outer surface of the rotating shaft, and the embedded rod penetrating through the guide groove, a first nozzle being fixedly connected through the rotating shaft, and two sets of the first nozzle being provided, both sets of the first nozzle being located above the lower mold near the material feeding adjustment component, and both sets of the first nozzle being connected to the mold release agent storage tank through pipes and a pressure pump; the displacement component includes a displacement bar fixedly connected to one side of the moving bar and a second nozzle fixedly connected to the upper end of the displacement bar, and two sets of the second nozzle being provided, both sets of the second nozzle being connected to the mold release agent storage tank through pipes and a pressure pump.

[0013] Furthermore, the lifting mold assembly includes an electric telescopic rod that is fixedly connected to the upper end of the L-shaped mounting plate and a water-shielding shell that is fixedly connected to the lower end of the electric telescopic rod. An upper mold is fixedly connected inside the water-shielding shell, and the upper mold is matched with the position of the perforated plate. The inner wall of the water-shielding shell is matched with the size of the perforated plate. A water spraying and heat dissipation part is provided at the upper end of the processing table, and the water outlet of the water spraying and heat dissipation part is fixedly connected to the upper end of the water-shielding shell through a pipe. Heating plates are provided inside both the water-shielding shell and the lower mold.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention proposes a midsole for sports shoes with arch cushioning and its preparation method. The moving bar and displacement bar are moved by the motor screw drive unit, and the rotating shaft rotates left and right once. This allows the release agent to be evenly sprayed onto the surfaces of the upper and lower molds. When the receiving cup moves to the top of the cavity of the lower mold, the raw material foaming particles inside the receiving cup can enter the lower mold. Then, the rotation of the elliptical block causes the receiving cup to vibrate. The drive motor causes the lower mold containing the raw material foaming particles to vibrate evenly and then move to the bottom of the upper mold for processing. The present invention can realize the automatic feeding of raw material foaming particles for sports shoe midsoles and can automatically spray the release agent during feeding, thereby reducing processing steps. Attached Figure Description

[0015] Figure 1 This is a flowchart illustrating the overall process flow of the present invention. Figure 2 This is a schematic diagram of the overall three-dimensional structure of the molding device of the present invention; Figure 3 This is a schematic diagram of the uniform feeding component, anti-sticking component, and rotating mold component of the present invention; Figure 4 This is a schematic diagram showing the disassembled structure of the rotating mold assembly of the present invention; Figure 5 This is a schematic diagram of the moving part and lower mold structure of the present invention; Figure 6This is a schematic diagram showing the disassembled structure of the movable strip, the blocking component, and the receiving cup of the present invention; Figure 7 This is a schematic diagram showing the disassembled structure of the limiting plate, vibration component, and receiving cup of the present invention; Figure 8 This is a structurally disassembled schematic diagram of the baffle plate, T-shaped transmission rod, material feeding adjustment component, uniform component, lower mold, and fixing rod of the present invention. Figure 9 This is a schematic diagram showing the disassembled structure of the movable strip and anti-stick component of the present invention; Figure 10 This is a schematic diagram of the structure of the collection cavity, perforated plate, and lifting mold assembly of the present invention.

[0016] In the diagram: 1. Mounting assembly; 11. Processing table; 111. Collection chamber; 12. Perforated plate; 2. Quantitative feeding section; 3. Lifting mold assembly; 31. Electric telescopic rod; 32. Waterproof shell; 33. Upper mold; 4. Uniform feeding assembly; 41. Moving part; 411. Motor screw drive part; 412. Moving bar; 413. Guide rod; 42. Blocking part; 421. Limiting plate; 422. First mounting plate; 423. First spring; 424. Connecting bar; 425. Pin; 426. Blocking plate; 427. T-shaped transmission rod; 43. Feeding adjustment part; 431. Second mounting plate; 432. Sliding bar; 433. Transmission block; 434. Mounting block; 435. Second spring; 44. Vibrating component; 441. Transmission plate; 442. Rotating rod; 443. Mounting strip; 444. Elliptical block; 445. Gear; 446. Rack; 45. Container cup; 5. Anti-stick component; 51. Release agent storage box; 52. Swinging component; 521. Support strip; 522. Rotating shaft; 523. Triangular guide plate; 524. Guide groove; 525. Embedded rod; 526. First nozzle; 53. Displacement component; 531. Displacement strip; 532. Second nozzle; 6. Rotating mold assembly; 61. Drive motor; 62. Rotating plate; 63. Lower mold; 64. Fixing rod; 65. Uniform component; 651. Arc strip; 652. Semicircular block; 7. L-shaped mounting plate; 8. Water spray cooling unit. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1As shown, a method for preparing an arch-cushioning sports shoe midsole includes the following steps: S1: mixing the raw materials for the sports shoe midsole using a mixer to obtain raw material sheets; S2: granulating the raw material sheets into granules using a granulator, followed by cooling, drying, and sieving; S3: cross-linking the raw material granules using an irradiation cross-linking device; S4: foaming the raw material granules using a nitrogen foaming device to obtain foamed raw material granules; S5: molding the foamed raw material granules using a molding device to obtain the sports shoe midsole.

[0019] The present invention will be further described below with reference to embodiments.

[0020] Please see Figure 1 The raw materials in S1 include 50-60 parts of EVA, 5-20 parts of styrene polymers, 1-5 parts of flexible polyvinyl chloride, 1-2 parts of stabilizer and 0.1-2 parts of calcium carbonate.

[0021] Please see Figure 2 , Figure 3 and Figure 10 The molding device in S5 includes an installation assembly 1 and an L-shaped installation plate 7 disposed on the upper end of the installation assembly 1. A quantitative feeding part 2 and a lifting mold assembly 3 are spaced through the upper end of the L-shaped installation plate 7. A uniform feeding assembly 4, an anti-sticking assembly 5, and a rotating mold assembly 6 are disposed on the upper end of the installation assembly 1, and the uniform feeding assembly 4 is connected to the anti-sticking assembly 5. The installation assembly 1 includes a processing table 11 fixedly connected to the lower end of the L-shaped installation plate 7. A collection cavity 111 is opened on the upper end of the processing table 11. A perforated plate 12 is fixedly connected to the inner wall of the collection cavity 111, and the upper end of the perforated plate 12 is lower than the upper end of the processing table 11. The collection cavity 111 is connected to the outside through a pipe. The collection cavity 111 and the perforated plate 12 are used for guiding flow. The uniform feeding assembly 4 includes a moving part 41 and a feeding adjustment part 43 spaced through the upper end of the processing table 11. A shielding part 42 is disposed on the outer surface of the moving part 41, and the shielding part 42 extends through the upper end of the processing table 11. The device is equipped with two sets of receiving cups 45, each with a discharge hole at its lower end. A vibrating component 44 is attached to the lower end of a shielding component 42 and connected to the receiving cups 45. A moving component 41 moves the receiving cups 45, while the shielding component 42 prevents the raw material foaming particles in the receiving cups 45 from falling out. A feeding adjustment component 43 adjusts the position of the shielding component 42 to control the feeding of the receiving cups 45, and the vibrating component 44 vibrates the receiving cups 45 to promote feeding. The anti-stick component 5 includes a release agent storage box 51 fixedly connected to the inner side of the upper end of an L-shaped mounting plate 7. A swinging component 52 and a displacement component 53 are spaced apart on the outer surface of the moving component 41. The moving component 41 drives the swinging component 52 to swing and the displacement component 53 to move, thereby expanding the spraying range of the swinging component 52 and the displacement component 53.

[0022] Please see Figure 4 and Figure 8 The rotating mold assembly 6 includes a drive motor 61 embedded and fixedly connected to the upper end of the processing table 11. A rotating plate 62 is fixedly connected to the output end of the drive motor 61. A lower mold 63 is rotatably connected to the upper end of the rotating plate 62, and two sets of lower molds 63 are symmetrically arranged. The upper end of the lower mold 63 is provided with a mold cavity. The receiving cups 45 of the two sets are respectively matched with the positions of the two sets of mold cavities near the material feeding adjustment component 43. A clearance groove is provided on the rotating plate 62. A fixing rod 64 is fixedly connected to one side of each set of lower molds 63. A uniform component 65 is provided on the upper end of the processing table 11. The fixing rod 64 of the set near the material feeding adjustment component 43 is in contact with the uniform component 65. The uniform component 65 includes an arc-shaped component fixedly connected to the upper end of the processing table 11. The arc-shaped strip 651 and the semi-circular block 652 fixedly connected to the upper end of the arc-shaped strip 651 are arranged in multiple sets along the arc-shaped strip 651. The fixing rod 64 is in contact with one set of arc-shaped strips 651. The arc-shaped strip 651 is used to lift the fixing rod 64 upward, so that the lower mold 63 vibrates continuously, thereby making the raw material foaming particles inside the lower mold 63 evenly distributed. The drive motor 61 can drive the rotating plate 62 to rotate, thereby adjusting the position of the two sets of lower molds 63. When the fixing rod 64 moves on the arc-shaped strip 651, the arc-shaped strip 651 will continuously push the fixing rod 64 up, thereby making the lower mold 63 vibrate, making the raw material foaming particles evenly distributed. The clearance groove is used to make way for the rotation of the lower mold 63.

[0023] Please see Figure 5 The moving component 41 includes a motor screw drive unit 411 and a guide rod 413 fixedly connected to one side of the L-shaped mounting plate 7 at intervals. One end of the guide rod 413 is fixedly connected to the upper end of the processing table 11 through a support block. A moving strip 412 is provided through the outer surface of the motor screw drive unit 411 and the guide rod 413. The motor screw drive unit 411 is used to drive the moving strip 412 to move. It should be noted that the moving strip 412 is driven by the motor screw drive unit 411 to move along the guide rod 413. This technical solution is not an innovative part of this application and belongs to common general knowledge. Those skilled in the art are capable of conceiving the specific structure.

[0024] Please see Figure 6The shielding component 42 includes a limiting plate 421 fixedly connected to one side of the moving strip 412 and a first mounting plate 422 fixedly connected to the lower end of the moving strip 412. Two sets of limiting plates 421 are provided, with two sets of receiving cups 45 respectively penetrating through the two sets of limiting plates 421. A first spring 423 is fixedly connected to one side of the first mounting plate 422, and a connecting strip 424 is fixedly connected to the other end of the first spring 423. Two pins 425 are fixedly connected at intervals to one side of the first mounting plate 422, and the pins 425 are movably connected through the connecting strip 424. Two shielding plates 426 are fixedly connected to the lower end of the connecting strip 424. Plates 426 are respectively positioned in contact with the bottom of the receiving cup 45. A T-shaped transmission rod 427 is fixedly connected to one side of a set of baffle plates 426 near the material feeding adjustment component 43. A limiting plate 421 is used to limit the receiving cup 45, and a baffle plate 426 is used to prevent the raw material foaming particles inside the receiving cup 45 from falling out. When the moving bar 412 moves, the limiting plate 421 can drive the receiving cup 45 to move together. At the same time, the moving bar 412 can drive the first mounting plate 422, the first spring 423, the connecting bar 424 and the baffle plate 426 to move together. The elastic force of the first spring 423 can squeeze the baffle plate 426 to move below the receiving cup 45.

[0025] Please see Figure 2 and Figure 7 The vibrating component 44 includes two transmission plates 441 fixedly connected to the outer surfaces of two sets of receiving cups 45, respectively. Mounting strips 443 are fixedly connected to the lower ends of the limiting plates 421 of both sets. A rotating rod 442 is rotatably connected through the mounting strips 443 of both sets. Elliptical blocks 444 are fixedly connected to both ends of the rotating rod 442. The elliptical blocks 444 of both sets are respectively in contact with the lower ends of the transmission plates 441 of the two sets. A gear 445 is fixedly connected to the middle of the rotating rod 442. A rack 446 is fixedly connected to one side of the L-shaped mounting plate 7, and the positions of the gear 445 and the rack 446 are matched. The tooth pattern of the rack 446 matches the wider part of the middle of the mold cavity of the lower mold 63. 444 is used to drive the transmission plate 441 to vibrate, thereby causing the container cup 45 to vibrate and promote the falling of the raw material foam particles inside the container cup 45. When the limiting plate 421 moves, it can drive the rotating rod 442 to move through the mounting strip 443. When the gear 445 moves to the upper part of the wider part of the mold cavity of the lower mold 63, it will mesh with the rack 446. Then the gear 445 will roll along the rack 446, thereby causing the rotating rod 442 to drive the two sets of elliptical blocks 444 to rotate. The rotation of the two sets of elliptical blocks 444 can continuously push the transmission plate 441 up, thereby causing the container cup 45 to vibrate, which can promote the falling of the raw material foam particles inside the container cup 45 and avoid blockage and residue.

[0026] Please see Figure 8The material feeding adjustment component 43 includes a second mounting plate 431 fixedly connected to the upper end of the processing table 11. Sliding strips 432 are slidably connected through both sides of the second mounting plate 431. A groove is provided on the second mounting plate 431 for the sliding strips 432 to slide, and the groove matches the position of the mold cavity of the lower mold 63. The position of the sliding strips 432 matches the position of the T-shaped transmission rod 427. A transmission block 433 is fixedly connected to one end of the sliding strips 432, and a mounting block 43 is fixedly connected to one side of the second mounting plate 431. 4. A second spring 435 is fixedly connected between the mounting block 434 and the transmission block 433. The elastic force of the second spring 435 is greater than that of the first spring 423. After the T-shaped transmission rod 427 moves a certain distance, it will contact the sliding bar 432. Since the elastic force of the second spring 435 is greater than that of the first spring 423, the second spring 435 can push the T-shaped transmission rod 427 to move, so that the baffle plate 426 no longer blocks the bottom of the receiving cup 45. At this time, the raw material foaming particles inside the receiving cup 45 can fall out.

[0027] Please see Figure 3 and Figure 9 The swing component 52 includes a rotating shaft 522 rotatably connected to one side of the L-shaped mounting plate 7. A support bar 521 is rotatably connected to the other end of the rotating shaft 522. The lower end of the support bar 521 is fixedly connected to the upper end of the processing table 11. A triangular guide plate 523 is fixedly connected to one side of the moving bar 412. Two sets of triangular guide plates 523 are provided, forming a guide groove 524 between the two sets. The guide groove 524 is zigzag-shaped. An embedded rod 525 is fixedly connected to the outer surface of the rotating shaft 522, and the embedded rod 525 passes through the guide groove 524. A first nozzle 526 is fixedly connected through the rotating shaft 522. Two sets of first nozzles 526 are provided. Both sets of first nozzles 526 are located above the lower mold 63 of the set closest to the material feeding adjustment component 43. Both sets of first nozzles 526 are connected to the release agent storage tank 51 via pipes and a pressure pump. The moving bar 41... 2. When moving, both sets of triangular guide plates 523 will move, and the embedded rod 525 will be squeezed by the guide groove 524, thereby enabling the embedded rod 525 to deflect left and right, thus expanding the spraying range of the first nozzle 526, so that the upper surface of the lower mold 63 can be completely sprayed with release agent; the displacement component 53 includes a displacement bar 531 fixedly connected to one side of the moving bar 412 and a second nozzle 532 fixedly connected to the upper end of the displacement bar 531, and there are two sets of second nozzles 532. Both sets of second nozzles 532 are connected to the release agent storage tank 51 through pipes and pressure pumps. It should be noted that the release agent inside the release agent storage tank 51 is sprayed through the first nozzle 526 and the second nozzle 532 through pipes and pressure pumps. This technical solution is not an innovative part of this application and belongs to common knowledge. Those skilled in the art are capable of conceiving the specific structure.

[0028] Please see Figure 1 and Figure 10 The lifting mold assembly 3 includes an electric telescopic rod 31 fixedly connected to the upper end of the L-shaped mounting plate 7 and a water-shielding shell 32 fixedly connected to the lower end of the electric telescopic rod 31. An upper mold 33 is fixedly connected inside the water-shielding shell 32, and the upper mold 33 is positioned to match the perforated plate 12. The inner wall of the water-shielding shell 32 matches the size of the perforated plate 12. A water spray cooling section 8 is provided at the upper end of the processing table 11, and the water outlet of the water spray cooling section 8 is fixedly connected to the upper end of the water-shielding shell 32 via a pipe. Heating plates are provided inside both the water-shielding shell 32 and the lower mold 63, and the water can be cooled by the water spray cooling section 8. The water can be sprayed onto the upper mold 33, which can carry away the heat of the upper mold 33 and the lower mold 63 to achieve cooling. The water can be blocked by the water shielding shell 32 and flow into the collection chamber 111 through the perforated plate 12. It should be noted that the hot pressing molding of the raw material foaming particles is achieved by the water shielding shell 32, the lower mold 63 and the heating plate inside, and the water is sprayed through the water spraying heat dissipation part. These technical solutions are not the innovative part of this application document and are common knowledge. Those skilled in the art are capable of thinking of the specific structure. The electronic equipment of this device is controlled by a single-chip microcomputer.

[0029] Specifically, a certain amount of raw material foaming particles are placed into the two sets of receiving cups 45 through the quantitative feeding unit 2. Then, the motor screw drive unit 411 is started, causing the moving bar 412 and the receiving cup 45 to move a certain distance. When the moving bar 412 moves, it can drive the rotating shaft 522 to rotate left and right once. After the moving bar 412 moves for a period of time, the pressure pump on the mold release agent storage box 51 is started. The mold release agent can be evenly sprayed onto the upper surface of the lower mold 63 through the two sets of first nozzles 526. At the same time, when the moving bar 412 moves, it can drive the displacement bar 531 to move as well. The mold release agent can be evenly sprayed onto the lower surface of the upper mold 33 through the second nozzle 532. When the receiving cup 45 moves to the top of the mold cavity of the lower mold 63, the sliding bar 432 will squeeze and move the T-shaped transmission rod 427. At this time, the raw material foaming particles inside the receiving cup 45 can enter the lower mold 63. Then, the gear 445 will mesh with the rack 446. The rotation of the two sets of elliptical blocks 444 can make the material foaming particles inside the receiving cup 45 enter the lower mold 63. Then, the gear 445 will mesh with the rack 446. The rotation of the two sets of elliptical blocks 444 can make the material foaming particles inside the receiving cup 45 enter the lower mold 63. Vibration of the receiving cup 45 prevents the raw material foam particles from clogging the lower end of the receiving cup 45. Then, the motor screw drive unit 411 moves the moving bar 412 away from the feeding adjustment component 43. After the T-shaped transmission rod 427 separates from the sliding bar 432, the elastic force of the first spring 423 can push the connecting bar 424 to move, so that the baffle plate 426 covers the bottom of the receiving cup 45 again. Then, the drive motor 61 is started, so that the rotating plate 62 rotates 180 degrees counterclockwise, so that the lower mold 63 containing the raw material foam particles vibrates evenly and moves to the bottom of the upper mold 33. Then, hot pressing molding can be performed. This invention can realize automatic feeding of raw material foam particles for sports shoe midsoles. The moving feeding can improve the uniformity of feeding. At the same time, the vibration can prevent the raw material foam particles from clogging. It can also automatically spray release agent during feeding, which can reduce processing steps. The two lower molds 63 can realize cyclic processing, which can improve the production efficiency of sports shoe midsoles.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for manufacturing a midsole for athletic shoes with arch cushioning, characterized in that: Includes the following steps: S1: The raw materials for the midsole of sports shoes are mixed using an internal mixer to obtain raw material film; S2: The raw material film is granulated into granules by a granulation machine and then cooled, dried and sieved; S3: The raw material granules are cross-linked by irradiation using an irradiation cross-linking device; S4: The raw material granules are foamed by a nitrogen foaming device to obtain foamed raw material granules; S5: The foamed raw material granules are molded by a molding device to obtain the midsole of a sports shoe; The molding device in S5 includes an installation component (1) and an L-shaped installation plate (7) set on the upper end of the installation component (1). The upper end of the L-shaped installation plate (7) is provided with a quantitative feeding part (2) and a lifting mold component (3) at intervals. The upper end of the installation component (1) is provided with a uniform feeding part. The assembly (4), the anti-stick assembly (5), and the rotating mold assembly (6) are connected, and the uniform feeding assembly (4) is connected to the anti-stick assembly (5); the mounting assembly (1) includes a processing table (11) fixedly connected to the lower end of the L-shaped mounting plate (7), and a collection cavity (111) is opened at the upper end of the processing table (11). A perforated plate (12) is fixedly connected to the inner wall of the collection cavity (111), and the height of the upper end of the perforated plate (12) is lower than the height of the upper end of the processing table (11). The collection cavity (111) is connected to the outside through a pipe. The collection cavity (111) and the perforated plate (12) are used for guiding flow; the uniform feeding assembly (4) includes a rotating mold assembly (6) spaced apart from the processing table (7). The upper end of the workbench (11) has a moving part (41) and a feeding adjustment part (43). The outer surface of the moving part (41) is provided with a shielding part (42). A receiving cup (45) is provided through the shielding part (42), and there are two sets of receiving cups (45). The lower end of the two sets of receiving cups (45) is provided with a discharge hole, and there are multiple sets of discharge holes. The lower end of the shielding part (42) is provided with a vibration part (44), and the vibration part (44) is connected to the receiving cup (45). The moving part (41) is used to drive the receiving cup (45) to move, and the shielding part (42) is used to block the raw material foam particles in the receiving cup (45). The particles fall off, and the feeding adjustment component (43) is used to adjust the position of the shielding component (42) to control the feeding of the container cup (45). The vibration component (44) is used to drive the container cup (45) to vibrate to promote feeding. The anti-stick component (5) includes a release agent storage box (51) fixedly connected to the inner side of the upper end of the L-shaped mounting plate (7). The outer surface of the moving component (41) is provided with a swinging component (52) and a displacement component (53) at intervals. The moving component (41) is used to drive the swinging component (52) to swing and drive the displacement component (53) to move, thereby expanding the spraying range of the swinging component (52) and the displacement component (53).

2. The method for manufacturing a midsole for an arch-cushioning athletic shoe as described in claim 1, characterized in that: The raw materials in S1 include 50-60 parts of EVA, 5-20 parts of styrene polymers, 1-5 parts of flexible polyvinyl chloride, 1-2 parts of stabilizer, and 0.1-2 parts of calcium carbonate.

3. The method for manufacturing a midsole for an arch-cushioning athletic shoe as described in claim 1, characterized in that: The rotating mold assembly (6) includes a drive motor (61) embedded and fixedly connected to the upper end of the processing table (11). The output end of the drive motor (61) is fixedly connected to a rotating plate (62). The upper end of the rotating plate (62) is rotatably connected to a lower mold (63). Two sets of lower molds (63) are symmetrically arranged. The upper end of the lower mold (63) is provided with a mold cavity. The two sets of receiving cups (45) are respectively matched with the positions of the two sets of mold cavities near the material feeding adjustment component (43). The rotating plate (62) is provided with a clearance groove. The two sets of lower molds (63) are fixedly connected to one side with a fixing rod (64). The upper end of the processing table (11) is provided with a uniform component (65). The set of fixing rods (64) near the material feeding adjustment component (43) is in contact with the uniform component (65). The uniform component (65) includes an arc-shaped strip (651) fixedly connected to the upper end of the processing table (11) and a semi-circular block (652) fixedly connected to the upper end of the arc-shaped strip (651). Multiple sets of semi-circular blocks (652) are arranged along the arc-shaped strip (651). A fixing rod (64) is in contact with one set of the arc-shaped strips (651). The arc-shaped strips (651) are used to lift the fixing rods (64) upward, thereby causing the lower mold (63) to vibrate continuously, thereby making the raw material foaming particles inside the lower mold (63) uniformly distributed.

4. The method for preparing a midsole for an arch-cushioning athletic shoe as described in claim 3, characterized in that: The moving component (41) includes a motor screw drive unit (411) and a guide rod (413) fixedly connected at intervals to one side of the L-shaped mounting plate (7). One end of the guide rod (413) is fixedly connected to the upper end of the processing table (11) through a support block. A moving strip (412) is provided through the outer surface of the motor screw drive unit (411) and the guide rod (413). The motor screw drive unit (411) is used to drive the moving strip (412) to move.

5. The method for preparing a midsole for an arch-cushioning athletic shoe as described in claim 4, characterized in that: The shielding component (42) includes a limiting plate (421) fixedly connected to one side of the moving strip (412) and a first mounting plate (422) fixedly connected to the lower end of the moving strip (412). Two sets of limiting plates (421) are provided, with the two sets of receiving cups (45) respectively penetrating through the two sets of limiting plates (421). A first spring (423) is fixedly connected to one side of the first mounting plate (422), and a connecting strip (424) is fixedly connected to the other end of the first spring (423). Two connecting strips (424) are fixedly connected at intervals on one side of the first mounting plate (422). A pin (425) is connected to a connecting strip (424) through it. Two baffles (426) are fixedly connected to the lower end of the connecting strip (424). The two sets of baffles (426) are respectively positioned in contact with the bottom of the container cup (45). A T-shaped transmission rod (427) is fixedly connected to one side of the set of baffles (426) near the feeding adjustment component (43). The limiting plate (421) is used to limit the container cup (45), and the baffles (426) are used to prevent the raw material foam particles inside the container cup (45) from falling out.

6. The method for manufacturing a midsole for an arch-cushioning athletic shoe as described in claim 5, characterized in that: The vibration component (44) includes two transmission plates (441) fixedly connected to the outer surfaces of the two sets of receiving cups (45). Mounting strips (443) are fixedly connected to the lower ends of the two sets of limiting plates (421). A rotating rod (442) is rotatably connected through the two sets of mounting strips (443). Elliptical blocks (444) are fixedly connected to both ends of the rotating rod (442). The elliptical blocks (444) are respectively connected to the lower ends of the two sets of transmission plates (441). The contact setting has a gear (445) fixedly connected in the middle of the rotating rod (442), and a rack (446) fixedly connected on one side of the L-shaped mounting plate (7). The gear (445) and the rack (446) are matched in position. The tooth pattern of the rack (446) matches the position of the wider part of the mold cavity in the lower mold (63). The elliptical block (444) is used to drive the transmission plate (441) to vibrate, so that the container cup (45) vibrates to promote the falling of the raw material foam particles inside the container cup (45).

7. The method for manufacturing a midsole for an arch-cushioning athletic shoe as described in claim 6, characterized in that: The feeding adjustment component (43) includes a second mounting plate (431) fixedly connected to the upper end of the processing table (11). Sliding strips (432) are slidably connected through both sides of the second mounting plate (431). A sliding groove is provided on the second mounting plate (431) for the sliding strips (432) to slide. The sliding groove matches the position of the mold cavity of the lower mold (63). The position of the sliding strips (432) matches the position of the T-shaped transmission rod (427). A transmission block (433) is fixedly connected to one end of the sliding strips (432). A mounting block (434) is fixedly connected to one side of the second mounting plate (431). A second spring (435) is fixedly connected between the mounting block (434) and the transmission block (433). The elastic force of the second spring (435) is greater than that of the first spring (423).

8. The method for manufacturing a midsole for an arch-cushioning athletic shoe as described in claim 4, characterized in that: The swing component (52) includes a rotating shaft (522) rotatably connected to one side of the L-shaped mounting plate (7). A support bar (521) is rotatably connected to the other end of the rotating shaft (522). The lower end of the support bar (521) is fixedly connected to the upper end of the processing table (11). A triangular guide plate (523) is fixedly connected to one side of the moving bar (412). Two sets of triangular guide plates (523) are provided. The two sets of triangular guide plates (523) form a guide groove (524). The guide groove (524) is a zigzag shape. An embedded rod (525) is fixedly connected to the outer surface of the rotating shaft (522). The embedded rod (525) passes through the guide groove (524). The rotating shaft (522) passes through... A first nozzle (526) is fixedly connected, and two sets of the first nozzle (526) are provided. Both sets of the first nozzle (526) are located above the lower mold (63) near the material adjustment component (43). Both sets of the first nozzle (526) are connected to the mold release agent storage tank (51) through pipes and pressure pumps. The displacement component (53) includes a displacement bar (531) fixedly connected to one side of the moving bar (412) and a second nozzle (532) fixedly connected to the upper end of the displacement bar (531). Two sets of the second nozzle (532) are provided. Both sets of the second nozzle (532) are connected to the mold release agent storage tank (51) through pipes and pressure pumps.

9. The method for manufacturing a midsole for an arch-cushioning athletic shoe as described in claim 3, characterized in that: The lifting mold assembly (3) includes an electric telescopic rod (31) that is fixedly connected to the upper end of the L-shaped mounting plate (7) and a water-shielding shell (32) that is fixedly connected to the lower end of the electric telescopic rod (31). An upper mold (33) is fixedly connected inside the water-shielding shell (32), and the upper mold (33) is matched with the position of the perforated plate (12). The inner wall of the water-shielding shell (32) is matched with the size of the perforated plate (12). A water spraying heat dissipation part (8) is provided at the upper end of the processing table (11), and the water outlet of the water spraying heat dissipation part (8) is fixedly connected to the upper end of the water-shielding shell (32) through a pipe. A heating plate is provided inside both the water-shielding shell (32) and the lower mold (63).

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