Molding molds and processes for shoe soles with flexural support components

Abstract

This application relates to the technical field of footwear, and provides a molding die and process for a sole with a flexural support component. The molding die for the sole with a flexural support component includes an upper die and a lower die, with the upper die slidably mounted on top of the lower die. The lower die includes two translation seats, each with a shaping post on its opposing inner wall. The support component has a deformation cavity for the shaping post to be embedded in. The bottom wall of the upper die has a first molding groove, and the side walls of the two translation seats that are close to each other have second molding grooves. The first molding groove and the two second molding grooves combine to form the mold cavity. The upper die has a first injection hole communicating with the mold cavity, and the first injection hole is connected to a first injection head. A positioning post is provided in the first molding groove, and the positioning post has an adsorption cavity. The lower end of the positioning post has an adsorption hole communicating with the adsorption cavity. The support component has a mating piece for the positioning post to abut against. The molding die for the sole with a flexural support component of this application can improve the structural strength of the sole.

Description

Technical Field

[0001] This application relates to the technical field of footwear, and in particular to molding dies and processes for soles with flexural support components. Background Technology

[0002] The sole is a crucial component of a shoe, making direct contact with the ground and providing support and protection for the wearer. Sole design is vital to a shoe's performance and comfort; designers need to consider factors such as sole elasticity, thickness, texture, and compatibility with the upper.

[0003] In existing technology, shoe soles consist of an upper and a lower sole, with a support plate embedded between them. The support plate is typically made of TPU or carbon fiber. During manufacturing, the upper and lower soles are first injection molded, and then the support plate is placed between them. The three components are then bonded together using adhesive or thermoforming, thus embedding the support plate within the sole to enhance its support strength and elasticity.

[0004] However, the manufacturing method of this type of sole results in poor bonding between the upper and lower soles. During strenuous exercise, the adhesive surfaces of the upper and lower soles may come unglued, thus reducing the lifespan of the sole. Therefore, further improvements are needed. Summary of the Invention

[0005] To improve the structural strength of shoe soles, this application provides a molding die and process for shoe soles with bending support components.

[0006] Firstly, the molding die for the shoe sole with bending support provided in this application adopts the following technical solution:

[0007] A molding die for a shoe sole with a bending support includes an upper die and a lower die, with the upper die slidably mounted on top of the lower die. The lower die includes two translation seats, each with a shaping post on its opposing inner wall. The support has a deformation cavity for the shaping post to be embedded in. The bottom wall of the upper die has a first molding groove, and the side walls of the two translation seats that are close to each other have second molding grooves. The first molding groove and the two second molding grooves combine to form a mold cavity. The upper die has a first injection hole communicating with the mold cavity, and the first injection hole is connected to a first injection head. A positioning post is provided in the first molding groove, and the positioning post has an adsorption cavity. The lower end of the positioning post has an adsorption hole communicating with the adsorption cavity. The support has a mating piece for the positioning post to abut against.

[0008] By employing the above technical solution, during the injection molding of the shoe sole, a pre-formed support component is placed between two translation seats, causing the two translation seats to move closer together, allowing the shaping post to embed into the deformation cavity of the support component. Molding material is then injected into the mold cavity, and after solidification, a shoe sole with the support component is obtained. The shoe sole is integrally injection molded, wrapping the sole around the support component, avoiding adhesive bonding and improving the structural strength of the sole. During support component installation, the mating tabs of the support strip are aligned with the lower end face of the positioning post, allowing the positioning post to adhere and position the support component through the mating tabs. Moving the two translation seats closer together forces the shaping post of the translation seats into the deformation cavity of the support component, enabling injection molding of the molding material and improving the installation accuracy of the support component.

[0009] Optionally, the positioning post is slidably connected to the upper mold, and the upper mold is provided with a lifting component for driving the positioning post to move up and down; when the positioning post is separated from the sole, a positioning hole is formed on the sole surface; the positioning post is provided with a second injection hole, and a second injection head is provided in the second injection hole.

[0010] By adopting the above technical solution, after the sole injection molding is completed, the positioning post is lifted by the lifting component, so that the positioning post is separated from the sole. After the positioning post is separated from the positioning hole of the sole, a second injection head is used for secondary injection molding to fill the positioning hole.

[0011] Optionally, the positioning post has an isolation ring, and the adsorption hole is disposed on the isolation ring; the lifting assembly includes a lifting ring, a lifting rod, and a lifting component. The lifting ring is slidably installed on the positioning post and located at the bottom of the isolation ring. A connecting hole is opened on the surface of the lifting ring, and the connecting hole and the adsorption hole are staggered. One end of the lifting rod is connected to the lifting ring, and the other end passes through the isolation ring and extends to the top of the upper mold. The lifting component is disposed on the upper mold to drive the lifting rod to move up and down.

[0012] By adopting the above technical solution, after the sole is injection molded, the lifting rod is raised by the lifting component, which drives the lifting ring to abut against the isolation ring. The connecting hole and the adsorption hole are misaligned, thereby closing the adsorption cavity (i.e. cutting off the adsorption effect of the positioning post on the docking piece). If the lifting rod is continued to be raised, the lifting ring can pull the positioning post to rise, thereby forcing the positioning post to disengage from the positioning hole of the sole, improving the overall ease of operation.

[0013] Optionally, the outer peripheral wall of the positioning post is provided with an exhaust channel, and a sealing strip is slidably installed in the exhaust channel; a first connecting rod is connected between the sealing strip and the lifting rod, one end of the first connecting rod is hinged to the sealing strip, and the other end is hinged to the lifting rod. When the lifting ring abuts against the isolation ring, the first connecting rod forces the sealing strip to slide toward the center of the positioning post to open the exhaust channel.

[0014] By employing the aforementioned technical solution, the lifting rod is forced to rise, causing the lifting ring to contact the isolation ring. During this process, the lifting rod pulls the sealing strip via the first connecting rod, forcing the sealing strip to slide towards the center of the positioning post, thus detaching it from the inner wall of the positioning hole and opening the vent. Continuing to drive the lifting rod upwards will lift the positioning post away from the positioning hole. The sliding of the sealing strip towards the center of the positioning post reduces, on the one hand, the contact area between the positioning post and the inner wall of the positioning hole during the lifting process, thereby reducing the frictional resistance experienced by the positioning post during lifting; on the other hand, it allows the space inside the positioning hole to connect with the outside, facilitating the filling of the positioning hole with molding material by the second injection head, reducing the generation of air bubbles in the positioning hole, and improving the injection molding effect.

[0015] Optionally, the sealing strip is connected to a second connecting rod, the end of the second connecting rod away from the sealing strip is inserted into the adsorption cavity and hinged to the first connecting rod; when the lifting ring moves down to be flush with the lower end face of the positioning post, the length direction of the first connecting rod rotates to be consistent with the length direction of the second connecting rod.

[0016] By employing the above technical solution, the lifting rod is driven downwards, causing the lifting ring to move down until it is flush with the lower end face of the positioning post. At this point, a gap is formed between the lifting ring and the isolation ring, thereby opening the adsorption cavity so that the positioning post can adsorb the support component. In this state, the first connecting rod and the second connecting rod rotate in the same direction along their lengths, forming a "counter-bracing" effect to mutually limit each other, thereby keeping the adsorption cavity open and the venting channel closed, so as to facilitate the injection of molding material into the mold cavity.

[0017] Optionally, the bottom of the lower mold is provided with a mounting platform, and two translation seats are slidably mounted on the mounting platform; a transfer seat for transferring the support or shoe sole is slidably mounted on the mounting platform, and the top wall of the transfer seat is provided with a positioning groove for the support to be matched and embedded.

[0018] By adopting the above technical solution, during the installation of the support component, it is first placed in the positioning groove of the transfer seat, which positions the support component. Then, the transfer seat is driven to slide between the two translation seats, and the upper mold is lowered, allowing the positioning pins of the upper mold to adhere to the support component. After the support component is transferred to the positioning pins of the upper mold, the two translation seats are driven to move closer together, achieving precise installation of the support component within the mold cavity, improving the installation accuracy of the support component, and thus improving the molding quality of the shoe sole.

[0019] Optionally, each of the two translation seats is provided with a limiting plate on the side that is far apart from each other. The inner wall of the second forming groove of the translation seat is provided with an ejection groove, and an ejection rod is provided in the ejection groove. One end of the ejection rod extends out of the translation seat and is connected to the limiting plate.

[0020] By adopting the above technical solution, the ejector rod is set to drive the two translation seats away from each other, and the ejector rod is in a stationary state, thereby ejecting the molded shoe sole outward and realizing the demolding of the shoe sole from the translation seat.

[0021] Optionally, the limiting plate is slidably mounted on the mounting platform, and a limiting block for limiting the position of the limiting plate is slidably mounted on the mounting platform. The limiting block is connected to an unlocking strip. When the translation seat slides to abut against the limiting plate, the unlocking strip forces the limiting block to disengage from the limiting plate.

[0022] By adopting the above technical solution, under normal conditions, the limiting plate is fixed under the limitation of the limiting block, so that when the two translation seats move away from each other for demolding, the ejector rod can push the formed shoe sole out of the second forming groove of the translation seat. After the shoe sole is pushed out of the second forming groove, the two translation seats continue to be driven away from each other. The translation seats force the limiting block to disengage from the limiting plate through the unlocking strip. At this time, the limiting plate slides under the push of the translation seats, thereby driving the ejector rod to slide, so that the ejector rod disengages from the shoe sole, improving the demolding effect.

[0023] Optionally, the ejector rod is rotatably connected to the limiting plate, and a linkage assembly is provided between the ejector rod and the mounting platform. When the two translation seats move away from each other, the linkage assembly forces the ejector rod to rotate around its own central axis.

[0024] By adopting the above technical solution, the two translation seats are driven to move away from each other, and the ejector rod can push the formed shoe sole out of the second forming groove of the translation seat. During this process, the linkage component forces the ejector rod to rotate around its own central axis. The ejector rod and the shoe sole rotate relative to each other, thereby forcing the surface of the ejector rod to detach from the shoe sole, so that the transfer seat can push the formed shoe sole outward and improve the demolding efficiency.

[0025] Secondly, the molding process for the shoe sole with bending support provided in this application adopts the following technical solution:

[0026] The molding process for a shoe sole with a flexural support component includes the following steps: S1, fabrication of the support component; S2, installation of the support component: placing the support component into the mold cavity of the molding die; S3, injection molding: injecting molding material into the mold cavity so that the molding material wraps around the support component; S4, demolding.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. During the injection molding of the shoe sole, a pre-formed support component is placed between two translation seats, causing the two translation seats to move closer together, so that the shaping post is embedded in the deformation cavity of the support component; molding material is injected into the mold cavity, and after the molding material solidifies, a shoe sole with the support component is obtained. The shoe sole adopts a one-piece injection molding method, so that the shoe sole is wrapped around the support component, avoiding the use of adhesive methods and improving the structural strength of the shoe sole;

[0029] 2. By incorporating the venting channel and sealing strip, the lifting rod is forced to rise, causing the lifting ring to contact the isolation ring. During this process, the lifting rod pulls the sealing strip via the first connecting rod, forcing it to slide towards the center of the positioning post, thus detaching it from the inner wall of the positioning hole and opening the venting channel. Continuing to drive the lifting rod upwards will lift the positioning post away from the positioning hole. The sliding of the sealing strip towards the center of the positioning post serves two purposes: firstly, it reduces the contact area between the positioning post and the inner wall of the positioning hole during the lifting process, thereby reducing the frictional resistance experienced by the positioning post; secondly, it allows the space inside the positioning hole to connect with the outside, facilitating the filling of the positioning hole with molding material by the second injection head, reducing the generation of air bubbles in the positioning hole, and improving the injection molding effect.

[0030] 3. By using the limiting block and unlocking bar, under normal conditions, the limiting plate is fixed in a fixed state under the limitation of the limiting block, so that when the two translation seats move away from each other for demolding, the ejector rod can push the formed shoe sole out of the second forming groove of the translation seat. After the shoe sole is pushed out of the second forming groove, the two translation seats continue to be driven away from each other. The translation seats force the limiting block to disengage from the limiting plate through the unlocking bar. At this time, the limiting plate slides under the push of the translation seats, thereby driving the ejector rod to slide, so that the ejector rod disengages from the shoe sole, improving the demolding effect. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0032] Figure 2 This is a partial cross-sectional view of Embodiment 1 illustrating the first and second forming grooves;

[0033] Figure 3 This is a partial sectional view of the shaped column in Example 1;

[0034] Figure 4 This is a schematic diagram illustrating the structure of the support component in Example 1;

[0035] Figure 5 This is a partial cross-sectional view of the transfer seat in Embodiment 2;

[0036] Figure 6 This is a partial cross-sectional view of Example 2, showing the adsorption cavity and the second injection hole;

[0037] Figure 7Yes, yes Figure 6 Enlarged view of point A in the middle;

[0038] Figure 8 This is a partial cross-sectional view of the ejector rod in Embodiment 2;

[0039] Figure 9 Yes, yes Figure 8 Enlarged view of point B in the middle;

[0040] Figure 10 This is a partial cross-sectional view of the linkage wheel in Example 3;

[0041] Figure 11 This is a flowchart of Example 4.

[0042] Explanation of reference numerals in the attached drawings: 1. Support component; 11. Deformation cavity; 12. Connecting piece; 13. Deformation section; 14. Hollowed-out mesh; 2. Upper mold; 21. First molding groove; 211. Sliding groove; 22. First injection head; 23. Bracket; 3. Lower mold; 31. Translation seat; 311. Connecting block; 32. Shaping post; 33. Second molding groove; 34. Ejector rod; 4. Positioning post; 41. Adsorption cavity; 411. Adsorption hole; 42. Second injection hole; 421. Second injection head; 422. Second injection tube; 43. Isolation ring; 431. Adsorption area; 44. Exhaust channel; 441. Settlement groove; 45. Sealing strip; 451. Groove; 46. First connecting rod; 47. Second connecting rod; 48. Airflow channel; 5. Lifting assembly; 51. Lifting ring; 511. Connecting hole; 52. Lifting rod; 53. Lifting cylinder; 531. Connecting ring; 6. Mounting platform; 61. Transfer seat; 611. Positioning groove; 612. Pushing cylinder; 613. Pushing surface; 62. Limiting plate; 63. Limiting block; 631. Second spring; 64. Unlocking bar; 641. Guide surface; 65. First slide rail; 66. Mounting bracket; 661. Drive cylinder; 67. Second slide rail; 68. Limiting slide seat; 681. First spring; 682. Limiting groove; 69. Mounting plate; 691. Linkage wheel; 7. First driving component; 71. Drive screw; 72. Drive motor; 8. Positioning hole. Detailed Implementation

[0043] The following combination Figures 1-11 This application will be described in further detail. Example 1

[0044] This application discloses a molding die for a shoe sole with a bending support component.

[0045] Reference Figure 1 , Figure 2A molding die for a shoe sole with a bending support includes an upper die 2 and a lower die 3. The bottom of the lower die 3 is equipped with a mounting platform 6, and a first slide rail 65 is installed on the mounting platform 6. The lower die 3 includes two translation seats 31, both of which are slidably mounted on the first slide rail 65 of the mounting platform 6. The two translation seats 31 are slidably mounted on the mounting platform 6 via the first slide rail 65.

[0046] The mounting platform 6 is equipped with a first driving component 7 for driving two translation seats 31 to move closer or further apart. In this embodiment, the first driving component 7 includes a driving screw 71 and a driving motor 72. The driving screw 71 is rotatably mounted on the lower surface of the mounting platform 6. A connecting block 311 is fixedly connected to the bottom wall of each translation seat 31. The connecting block 311 passes through the mounting platform 6 and extends to the lower surface of the mounting platform 6. The driving screw 71 passes through the connecting blocks 311 of the two translation seats 31 in sequence. The driving screw 71 and the connecting blocks 311 of the two translation seats 31 are threadedly connected, and the threads of the driving screw 71 and the connecting blocks 311 of the two translation seats 31 are arranged in opposite directions. The driving motor 72 is fixedly mounted on the side wall of the mounting platform 6, and the output shaft of the driving motor 72 is coaxially connected to the driving screw 71.

[0047] A mounting bracket 66 is fixedly installed on the mounting platform 6. The upper mold 2 is slidably installed on the mounting bracket 66 and located on top of the lower mold 3. The mounting bracket 66 is provided with a second driving component. In this embodiment, the second driving component is set as a driving cylinder 661. The cylinder body of the driving cylinder 661 is fixedly installed on the mounting bracket 66. The piston rod of the driving cylinder 661 is fixedly connected to the top wall of the upper mold 2. When the piston rod of the driving cylinder 661 retracts inward, the upper mold 2 is lifted away from the lower mold 3. When the piston rod of the driving cylinder 661 extends outward, the upper mold 2 is pressed against the lower mold 3.

[0048] Reference Figure 2 , Figure 3 The upper mold 2 has a first molding groove 21 on its bottom wall, and two side walls of the two translation seats 31 that are close to each other have second molding grooves 33. When the two translation seats 31 abut against each other to form the lower mold 3, and the upper mold 2 is pressed against the lower mold 3, the first molding groove 21 and the two second molding grooves 33 combine to form the aforementioned mold cavity. The upper mold 2 has a first injection hole that communicates with the mold cavity. A first injection head 22 is fixedly connected to the first injection hole. The first injection head 22 is used to inject molding material into the mold cavity (the injection head is a prior art structure, and its structure will not be described in detail here). The first injection head 22 is connected to a first injection tube. One end of the first injection tube is fixedly connected to the first injection head 22, and the other end is used to connect to the injection molding equipment (not shown in the figure). The upper mold 2 has an exhaust hole (not shown in the figure).

[0049] Reference Figure 3 , Figure 4A support member 1 is provided inside the mold cavity. Both ends of the support member 1 have deformable portions 13. The support member 1 is used to embed into the sole of the shoe, and the two deformable portions 13 of the support member 1 are located at the ball of the foot and the heel of the foot, respectively. The deformable portions 13 are annular and form deformable cavities 11 with open ends. The surface of the support member 1 has perforated mesh 14 to reduce the overall weight of the support member 1.

[0050] The inner walls of the two translation seats 31 are fixedly installed with shaping columns 32. The number of shaping columns 32 in each translation seat 31 corresponds to the number of deformable parts 13 in the support member 1. When the two translation seats 31 abut against each other, the shaping columns 32 of the translation seats 31 are embedded in the deformation cavity 11 of the corresponding deformable part 13.

[0051] The implementation principle of Embodiment 1 of this application is as follows: During the injection molding of the shoe sole, the pre-formed support member 1 is placed between two translation seats 31, driving the two translation seats 31 closer together, so that the shaping column 32 is embedded in the deformation cavity 11 of the support member 1; then the upper mold 2 is pressed and molding material is injected into the mold cavity. After the molding material solidifies, the upper mold 2 is lifted, forcing the two translation seats 31 to move away from each other, thereby obtaining a shoe sole with support member 1. The shoe sole adopts an integral injection molding method, so that the shoe sole is wrapped around the support member, avoiding the use of adhesive, and improving the structural strength of the shoe sole. Example 2

[0052] This application discloses a molding die for a shoe sole with a bending support component.

[0053] The difference between the molding die for the shoe sole with a bending support element disclosed in this application and that in Example 1 is:

[0054] Reference Figure 5 In this embodiment, a second slide rail 67 is installed on the mounting platform 6. The length direction of the second slide rail 67 is perpendicular to the length direction of the first slide rail 65. A transfer seat 61 is slidably installed on the second slide rail 67. The top wall of the transfer seat 61 is provided with a positioning groove 611 for the support member 1 to be matched and embedded.

[0055] A push cylinder 612 is fixedly mounted on the mounting platform 6. The cylinder body of the push cylinder 612 is fixedly mounted on the mounting platform 6, and the piston rod of the push cylinder 612 is fixedly connected to the transfer seat 61. When the piston rod of the push cylinder 612 extends outward, the transfer seat 61 moves to the bottom of the upper mold 2. When the piston rod of the push cylinder 612 retracts inward, the transfer seat 61 moves out of the bottom of the upper mold 2. The side wall of the transfer seat 61 away from the push cylinder 612 forms a push surface 613. When the transfer seat 61 moves to the bottom of the upper mold 2, the push surface 613 is used to push the formed shoe sole out of the bottom of the upper mold 2.

[0056] Reference Figure 5 , Figure 6 , Figure 7 A positioning post 4 is installed in the first forming groove 21 of the upper mold 2. An adsorption cavity 41 is opened in the positioning post 4. The upper end of the positioning post 4 extends to the top of the upper mold 2. An adsorption tube (not shown in the figure) is connected to the outer peripheral wall of the upper end of the positioning post 4. The inlet end of the adsorption tube is connected to the adsorption cavity 41, and the outlet end of the adsorption tube is connected to a vacuum pump (such as a vacuum pump). An isolation ring 43 is fixedly installed at the lower end of the positioning post 4. The bottom wall of the isolation ring 43 has multiple adsorption holes 411 that are connected to the adsorption cavity 41.

[0057] The support member 1 has a docking piece 12, which is located between two deformable parts 13. The docking piece 12 is used for the positioning post 4 to be adsorbed. It should be noted that in this embodiment, the positioning post 4 is inclined and the central axis of the positioning post 4 is perpendicular to the surface of the docking piece 12 so as to adsorb the docking piece 12.

[0058] The inner wall of the first molding groove 21 is provided with a sliding groove 211, and the positioning post 4 is slidably installed in the sliding groove 211. When the positioning post 4 is detached from the sole, a positioning hole 8 is formed on the sole surface. The positioning post 4 is provided with a second injection hole 42, and the adsorption cavity 41 is located outside the second injection hole 42. A second injection head 421 (not shown in the figure) is fixedly installed in the second injection hole 42. The second injection head 421 is used to inject molding material into the positioning hole 8. The second injection head 421 is connected to a second injection tube 422. One end of the second injection tube 422 is fixedly connected to the second injection head 421, and the other end passes through the second injection hole 42 and is used to connect to the injection molding equipment.

[0059] Reference Figure 5 , Figure 6 The upper mold 2 is provided with a lifting assembly 5 for driving the positioning post 4 to rise and fall. The lifting assembly 5 includes a lifting ring 51, a lifting rod 52 and a lifting component. The lifting ring 51 is slidably installed on the positioning post 4 and located at the bottom of the isolation ring 43. The surface of the lifting ring 51 is provided with multiple connecting holes 511, and the multiple connecting holes 511 and multiple suction holes 411 are staggered. One end of the lifting rod 52 is connected to the lifting ring 51, and the other end passes through the isolation ring 43 and extends to the top of the upper mold 2.

[0060] A lifting component is installed on the upper mold 2 to drive the lifting rod 52 to move up and down. In this embodiment, the lifting component is a lifting cylinder 53. A bracket 23 is fixedly installed on the top wall of the upper mold 2. The cylinder body of the lifting cylinder 53 is fixedly installed on the bracket 23. The piston rod of the lifting cylinder 53 is fixedly connected to a connecting ring 531. The connecting ring 531 is fixedly connected to the lifting rod 52. When the piston rod of the lifting cylinder 53 retracts inward, the positioning pin 4 is lifted away from the positioning hole 8 and the adsorption cavity 41 is closed. When the piston rod of the lifting cylinder 53 extends outward, the positioning pin 4 is inserted into the first forming groove 21 and the adsorption cavity 41 is opened.

[0061] Reference Figure 6, Figure 7 The outer peripheral wall of the positioning post 4 is provided with multiple exhaust channels 44, which are arranged at intervals around the central axis of the positioning post 4. Both ends of each exhaust channel 44 extend along the central axis of the positioning post 4, and both ends of each exhaust channel 44 penetrate the upper end face and the lower end face of the positioning post 4, respectively. The inner wall of the exhaust channel 44 is provided with a groove 441, and a sealing strip 45 is slidably installed in the groove 441. The outer wall of the sealing strip 45 has multiple grooves 451. The sealing strip 45 is fixedly connected to multiple second connecting rods 47. The end of each second connecting rod 47 away from the sealing strip 45 is inserted into the adsorption cavity 41. A first connecting rod 46 is connected between the sealing strip 45 and the lifting rod 52. One end of the first connecting rod 46 is hinged to the second connecting rod 47 of the sealing strip 45, and the other end of the first connecting rod 46 is hinged to the lifting rod 52.

[0062] When the lifting ring 51 abuts against the isolation ring 43, the first connecting rod 46 forces the sealing strip 45 to slide toward the center of the positioning post 4 to open the exhaust passage 44. When the lifting ring 51 moves down to be flush with the lower end face of the positioning post 4, the sealing strip 45 blocks the exhaust passage 44, and the length direction of the first connecting rod 46 rotates to be consistent with the length direction of the second connecting rod 47.

[0063] Reference Figure 7 For ease of description, the area at the bottom of the isolation ring 43 is defined as the adsorption area 431. The lower end of the positioning post 4 is provided with an air passage 48. One end of the air passage 48 is connected to the exhaust passage 44, and the other end is connected to the adsorption area 431. When the lifting ring 51 slides to keep parallel with the lower end face of the positioning post 4, the lifting ring 51 and the sealing strip 45 respectively seal the two ends of the air passage 48. When the lifting ring 51 is raised to abut against the isolation ring 43, the lifting ring 51 and the sealing strip 45 respectively disengage from the two ends of the air passage 48 so that the exhaust passage 44 and the adsorption area 431 are connected.

[0064] Reference Figure 8 , Figure 9 Each of the two translation seats 31 has a limiting plate 62 installed on the side away from each other. The inner wall of the second forming groove 33 of the translation seat 31 has an ejection groove, and an ejection rod 34 is provided in the ejection groove. One end of the ejection rod 34 extends out of the translation seat 31 and is connected to the limiting plate 62. In this embodiment, the ejection rod 34 and the limiting plate 62 are fixedly connected. A limiting slide 68 is slidably installed on the surface of the mounting platform 6. The limiting plate 62 is fixedly installed on the limiting slide 68. The limiting plate 62 is slidably installed on the mounting platform 6 through the limiting slide 68 so that it can move closer to or away from the translation seat 31. A first spring 681 is installed between the limiting slide 68 and the mounting platform 6. The first spring 681 forces the limiting slide 68 to slide towards the side closer to the translation seat 31.

[0065] Mounting platform 6 is slidably mounted with a limiting block 63 that limits the position of limiting plate 62. A second spring 631 is installed between limiting block 63 and mounting platform 6. The bottom wall of limiting slide 68 has a limiting groove 682. The second spring 631 normally forces limiting block 63 to rise and embed into limiting groove 682 of limiting slide 68. Unlocking bar 64 is fixedly mounted on limiting block 63. The upper end of unlocking bar 64 extends to the top of mounting platform 6, and unlocking bar 64 is located on the side of limiting plate 62 near translation seat 31. The top of unlocking bar 64 has a guide surface 641 for translation seat 31 to abut. When translation seat 31 slides to abut against limiting plate 62, translation seat 31 forces unlocking bar 64 to move down through guide surface 641, so that limiting block 63 disengages from limiting groove 682 of limiting plate 62.

[0066] The implementation principle of Embodiment 2 of this application is as follows: When installing the support member 1, the support member 1 is first placed in the positioning groove 611 of the transfer seat 61. The positioning groove 611 positions the support member 1. Then, the transfer seat 61 is driven to slide between the two translation seats 31, and the upper mold 2 is moved down so that the positioning post 4 of the upper mold 2 can attract the support member 1. After the support member 1 is transferred to the positioning post 4 of the upper mold 2, the two translation seats 31 are driven to move closer to each other, so as to accurately install the support member 1 in the mold cavity and improve the installation accuracy of the support member 1.

[0067] After the sole is formed, the lifting ring 51 is raised, causing it to contact the isolation ring 43. During this process, the lifting rod 52 pulls the sealing strip 45 through the first connecting rod 46, forcing the sealing strip 45 to slide towards the center of the positioning post 4, thus detaching it from the inner wall of the positioning hole 8 and opening the vent 44. Continuing to raise the lifting rod 52 will lift the positioning post 4 away from the positioning hole 8. The sliding of the sealing strip 45 towards the center of the positioning post 4 reduces the contact area between the positioning post 4 and the inner wall of the positioning hole 8 during the lifting process, thereby reducing the frictional resistance experienced by the positioning post 4 during the lifting process. On the other hand, it allows the space inside the positioning hole 8 to connect with the outside through the vent 44, facilitating the filling of the positioning hole 8 with molding material by the second injection head 421, reducing the generation of air bubbles in the positioning hole 8 and improving the injection molding effect.

[0068] After injection molding is completed in the positioning hole 8, the upper mold 2 is driven to rise, and the two translation seats 31 are forced to move away from each other. The ejector rod 34 can push the formed shoe sole outward, realizing the demolding between the shoe sole and the translation seat 31 and improving the demolding efficiency. After the shoe sole is separated from the translation seat 31, the two translation seats 31 are driven to move away from each other. The translation seat 31 forces the limiting block 63 to separate from the limiting plate 62 through the unlocking strip 64. At this time, the limiting plate 62 slides under the push of the translation seat 31, thereby driving the ejector rod 34 to slide, so that the ejector rod 34 is separated from the shoe sole, improving the demolding effect. Example 3

[0069] This application discloses a molding die for a shoe sole with a bending support component.

[0070] The difference between the molding die for the shoe sole with a bending support element disclosed in this application and that in Example 2 is:

[0071] Reference Figure 10 In this embodiment, the ejector rod 34 is rotatably connected to the limiting plate 62, and a linkage component is provided between the ejector rod 34 and the mounting platform 6. When the two translation seats 31 move away from each other, the linkage component forces the ejector rod 34 to rotate around its own central axis. A mounting plate 69 is fixedly mounted on the surface of the mounting platform 6. The mounting plate 69 is located on the side of the limiting plate 62 away from the translation seats 31. The linkage component includes a linkage wheel 691 and a transmission component. The linkage wheel 691 is rotatably mounted on the mounting plate 69. The end of the ejector rod 34 away from the translation seats 31 passes through the linkage wheel 691. The ejector rod 34 and the linkage wheel 691 are connected by a keyway to achieve circumferential linkage (that is, the linkage wheel 691 can drive the ejector rod 34 to rotate synchronously, and the ejector rod 34 can slide relative to the linkage wheel 691).

[0072] The transmission component is a belt (not shown in the figure), which is wound around the linkage wheel 691 and the drive screw 71 (the drive screw 71 is not shown in this embodiment) so that when the drive screw 71 drives the translation seat 31 to slide, the ejector rod 34 can rotate around its own central axis.

[0073] The implementation principle of Embodiment 3 of this application is as follows: When the two translation seats 31 are driven to move away from each other, the ejector rod 34 can eject the formed shoe sole out of the second forming groove 33 of the translation seat 31. During this process, the linkage wheel 691 forces the ejector rod 34 to rotate around its own central axis. The ejector rod 34 and the shoe sole rotate relative to each other, thereby forcing the surface of the ejector rod 34 to detach from the shoe sole, so that the transfer seat 61 can push the formed shoe sole outward, thereby improving the demolding efficiency. Example 4

[0074] This application also discloses a molding process for a shoe sole with a bending support component.

[0075] Reference Figure 11 The molding process for shoe soles with flexural support components specifically includes the following steps:

[0076] S1. Fabrication of Support Component 1: a. Titanium alloy is selected as the raw material and 3D printed to form the support body; b. A TPU layer is coated on the outer surface of the support body to obtain the composite support component 1. In other embodiments, the support body can also be made of aluminum alloy.

[0077] S2. Installation of support component 1: Place support component 1 into the mold cavity of the forming mold.

[0078] S3. Injection molding: Inject molding material into the mold cavity so that the molding material wraps around the support 1. The molding material can be EVA.

[0079] S4. Demolding: After the molding material has set, demold the mold and remove the molded sole.

[0080] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A molding die for a shoe sole with a bending support component, characterized in that: The system includes an upper mold (2) and a lower mold (3). The upper mold (2) is slidably mounted on the top of the lower mold (3). The lower mold (3) includes two translation seats (31), and each of the two translation seats (31) has a shaping post (32) on its opposing inner wall. The support member (1) has a deformation cavity (11) for the shaping post (32) to be embedded. The bottom wall of the upper mold (2) has a first forming groove (21), and the side walls of the two translation seats (31) that are close to each other have a second forming groove (33). A molding groove (21) and two second molding grooves (33) are combined to form a mold cavity; the upper mold (2) has a first injection hole that connects to the mold cavity, and the first injection hole is connected to a first injection head (22); a positioning post (4) is provided in the first molding groove (21), the positioning post (4) has an adsorption cavity (41), the lower end of the positioning post (4) has an adsorption hole (411) that connects to the adsorption cavity (41), and the support member (1) has a docking piece (12) for the positioning post (4) to abut.

2. The molding die for a shoe sole with a bending support element according to claim 1, characterized in that: The positioning post (4) is slidably connected to the upper mold (2). The upper mold (2) is provided with a lifting component (5) for driving the positioning post (4) to rise and fall. When the positioning post (4) is separated from the sole, a positioning hole (8) is formed on the sole surface. The positioning post (4) is provided with a second injection hole (42), and a second injection head (421) is provided in the second injection hole (42).

3. The molding die for a shoe sole with a bending support element according to claim 2, characterized in that: The positioning post (4) has an isolation ring (43) and an adsorption hole (411) is provided on the isolation ring (43); the lifting assembly (5) includes a lifting ring (51), a lifting rod (52) and a lifting component. The lifting ring (51) is slidably installed on the positioning post (4) and located at the bottom of the isolation ring (43). A connecting hole (511) is provided on the surface of the lifting ring (51), and the connecting hole (511) and the adsorption hole (411) are staggered. One end of the lifting rod (52) is connected to the lifting ring (51), and the other end passes through the isolation ring (43) and extends to the top of the upper mold (2). The lifting component is provided on the upper mold (2) to drive the lifting rod (52) to move up and down.

4. The molding die for a shoe sole with a bending support element according to claim 3, characterized in that: The outer peripheral wall of the positioning post (4) is provided with an exhaust channel (44), and a sealing strip (45) is slidably installed in the exhaust channel (44); a first connecting rod (46) is connected between the sealing strip (45) and the lifting rod (52). One end of the first connecting rod (46) is hinged to the sealing strip (45), and the other end is hinged to the lifting rod (52). When the lifting ring (51) abuts against the isolation ring (43), the first connecting rod (46) forces the sealing strip (45) to slide toward the center of the positioning post (4) to open the exhaust channel (44).

5. The molding die for a shoe sole with a bending support element according to claim 4, characterized in that: The sealing strip (45) is connected to a second connecting rod (47). The end of the second connecting rod (47) away from the sealing strip (45) is inserted into the adsorption cavity (41) and hinged to the first connecting rod (46). When the lifting ring (51) moves down to be flush with the lower end face of the positioning post (4), the length direction of the first connecting rod (46) rotates to be consistent with the length direction of the second connecting rod (47).

6. The molding die for a shoe sole with a bending support element according to claim 1, characterized in that: The bottom of the lower mold (3) is provided with a mounting platform (6), and two translation seats (31) are slidably mounted on the mounting platform (6); a transfer seat (61) for transferring the support (1) or the sole is slidably mounted on the mounting platform (6), and the top wall of the transfer seat (61) is provided with a positioning groove (611) for the support (1) to be matched and embedded.

7. The molding die for a shoe sole with a bending support element according to claim 6, characterized in that: Each of the two translation seats (31) is provided with a limiting plate (62) on the side away from each other. The inner wall of the second forming groove (33) of the translation seat (31) is provided with an ejection groove. An ejection rod (34) is provided in the ejection groove. One end of the ejection rod (34) extends out of the translation seat (31) and is connected to the limiting plate (62).

8. The molding die for a shoe sole with a bending support element according to claim 7, characterized in that: The limiting plate (62) is slidably installed on the mounting platform (6). A limiting block (63) for limiting the position of the limiting plate (62) is slidably installed on the mounting platform (6). The limiting block (63) is connected to an unlocking strip (64). When the translation seat (31) slides to abut against the limiting plate (62), the unlocking strip (64) forces the limiting block (63) to disengage from the limiting plate (62).

9. The molding die for a shoe sole with a bending support element according to claim 7, characterized in that: The ejector rod (34) is rotatably connected to the limiting plate (62), and a linkage component is provided between the ejector rod (34) and the mounting platform (6). When the two translation seats (31) move away from each other, the linkage component forces the ejector rod (34) to rotate around its own central axis.

10. A molding process for a shoe sole with a flexural support component, based on the molding die for a shoe sole with a flexural support component according to any one of claims 1-9, comprising the following steps: S1. Fabrication of support component (1); S2. Installation of support component (1): Place the support component (1) into the mold cavity of the molding die; S3, Injection molding: Inject molding material into the mold cavity so that the molding material wraps around the support (1); S4, Demolding.

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