Shoe processing method based on 3D printing forming

Abstract

The invention discloses a shoe processing method based on 3D printing forming, and relates to the field of shoe material 3D printing processing technics.The shoe processing method comprises the following steps that a shoe sole is subjected to injection molding, a plurality of anchoring holes are reserved in the edge of the peripheral side of the shoe sole, the anchoring holes are formed in an up-down penetrating mode, and lower openings of the anchoring holes are larger than upper openings of the anchoring holes; an anchoring combination part is formed through an FDM three-dimensional printer, the anchoring combination part comprises anchoring bodies and a combination body, and the anchoring bodies correspond to the anchoring holes in a one-to-one mode; and after the anchoring bodies are printed, the shoe sole is placed on the FDM three-dimensional printer, the anchoring holes of the shoe sole are matched with the anchoring bodies in a one-to-one correspondence mode, then the combination body is continuously printed on the anchoring bodies, the combination body is of a thin-wall structure, and the combination body and the anchoring bodies are connected into a whole. The vamp is connected with the sole through the anchoring connector, so that the cracking problem of the bonding connection part between the sole and the vamp can be reduced.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology for footwear materials, and in particular to a method for processing shoes based on 3D printing. Background Technology

[0002] The main structure of a shoe includes the sole and the upper. The sole is usually injection-molded, while the upper is made of a wider variety of materials, such as fabric and leather. The sole and upper are mainly bonded and sealed with glue. However, as shoes are used over time, the bonded joint between the sole and upper is prone to cracking due to repeated stress over extended periods. Summary of the Invention

[0003] To reduce cracking at the adhesive joint between the sole and the upper, this application provides a processing method for shoes based on 3D printing.

[0004] The processing method for shoes based on 3D printing provided in this application adopts the following technical solution: A method for manufacturing shoes based on 3D printing includes the following steps: injection molding a shoe sole, pre-reserving multiple anchoring holes on the peripheral edge of the shoe sole, the anchoring holes being arranged vertically and vertically, with the lower opening larger than the upper opening; using an FDM 3D printer to form an anchoring component, the anchoring component including an anchor body and a connecting body, the anchor body corresponding one-to-one with the anchoring holes; after the anchor body is printed, placing the shoe sole on the FDM 3D printer, so that the anchoring holes of the shoe sole mate one-to-one with the anchor body, and then continuing to print the connecting body on the anchor body, the connecting body having a thin-walled structure, the connecting body being integrated with each of the anchor bodies; after the anchoring component is printed, connecting and fixing the shoe upper to the anchoring component.

[0005] By adopting the above technical solution, the anchor body of the anchoring connector is anchored to the anchoring hole of the sole, while the connector is fixedly connected to the upper. This anchors the upper to the sole, strengthening the connection between the upper and the sole. During shoe use, the forces exerted are partially concentrated at the connection between the connector and the sole, while the remaining forces are concentrated at the connection between the anchor body and the sole, reducing the likelihood of cracking at the bonded joints.

[0006] Optionally, the sole has a connecting edge extending upward from its periphery, which is bonded and fixed to the assembly. The anchoring assembly is made of PU or TPU.

[0007] By adopting the above technical solution, the anchoring component is bonded and fixed to the connecting edge around the sole, so that the component functions as a leather piece connected to the sole in conventional technology. In addition to the adhesive connection, the component and the sole also have an anchoring connection, which makes the bonding interface between the component and the sole less prone to cracking, and helps the shoe maintain good waterproof performance over a longer service life.

[0008] Optionally, each of the anchor bodies has an anchoring strip connected to its lower end, and the sole of the shoe has a pre-installed anchoring groove that is compatible with the anchoring strip.

[0009] By adopting the above technical solution, the anchoring strip and the anchoring groove can be matched to increase the connection strength between the anchoring component and the shoe sole.

[0010] Optionally, the FDM 3D printer is provided with a positioning platform for positioning the shoe sole. The positioning platform is provided with multiple support protrusions, and the multiple support protrusions are provided one-to-one with the multiple anchoring holes of the shoe sole. When the shoe sole is placed on the FDM 3D printer, the support protrusions make the bottom surface of the anchoring body higher than the bottom surface of the shoe sole.

[0011] By adopting the above technical solution, the support protrusion cooperates with the anchoring hole to enable the sole of the shoe to be positioned; when the support protrusion extends into the anchoring hole, the anchor body can fully abut against the wall of the anchoring hole.

[0012] Optionally, when bonding the upper to the anchoring connector, another positioning platform is set at the bonding station. The positioning platform at the bonding station is set as an external positioning platform, and the structure of the external positioning platform is the same as that of the positioning platform on the printing platform. The combination of the sole and the anchoring connector is placed on the external positioning platform at the bonding station, and downward pressure is applied to the sole, so that the hole wall of the anchoring hole and the support protrusion apply pre-compression stress to the anchor body.

[0013] By adopting the above technical solution and applying prestress to the anchor body, the anchor body is less likely to deform during the use of the shoe, which helps to improve the anchoring effect of the anchor body.

[0014] Optionally, the sole is transported using a conveyor belt mechanism and then moved and placed on the positioning stage of the FDM 3D printer using a robotic arm.

[0015] By adopting the above technical solution, the shoe soles are transported by a conveyor belt and moved and positioned by a robotic arm, which helps to improve the degree of automation and reduce the workload of workers.

[0016] Optionally, during the printing of the anchor body, a cushioning structure is simultaneously printed outside the distribution area of ​​the sole. The cushioning structure is vertically aligned with the anchor body, and the upper and lower ends of the cushioning structure are flat structures, while the middle is a thin rod-like structure. During the placement of the sole, the print head is positioned at the top of the printed cushioning structure.

[0017] By adopting the above technical solution, the printer head is positioned in the state of printing buffer structure during the placement of the shoe sole, allowing the shoe sole to be placed directly onto the FDM 3D printer without interrupting the printing process. This ensures the continuity of the printing process and helps guarantee the accuracy and quality of the print.

[0018] Optionally, the FDM 3D printer includes a print table, a print head, an X-axis drive, a Y-axis drive, and a Z-axis drive. The print head is mounted on the X-axis drive, which drives the print head to move. The Z-axis drive drives both the X-axis drive and the print head to move. The Y-axis drive drives the print table to move. The X-axis drive is equipped with a suction cup lifter, which is higher than the print head and offset from it along the X-axis. The suction cup lifter has multiple vacuum suction cups for adsorbing shoe soles.

[0019] By adopting the above technical solution, the shoe sole is transferred using a suction cup lifter, eliminating the need for manual placement or a dedicated robotic arm for transferring the sole, thus simplifying the equipment structure. The suction cup lifter is mounted on the horizontal axis drive, allowing the placement and positioning of the shoe sole to be achieved through the movement of the FDM 3D printer, which helps ensure positional accuracy during sole placement.

[0020] Optionally, the positioning platform is provided with a negative pressure adsorption air path, which includes adsorption holes, a connecting air path, and a negative pressure connecting pipe. Multiple adsorption holes are provided and distributed on the upper surface of the support protrusion. The multiple adsorption holes are interconnected through the connecting air path. One end of the negative pressure connecting pipe is connected to the connecting air path, and the other end is used to connect to a vacuum generating device. The adsorption holes can adsorb the bottom surface of the anchor body through negative pressure.

[0021] By adopting the above technical solution, the adsorption holes of the negative pressure adsorption air path can hold the bottom surface of the anchor body in place through negative pressure, thus keeping the anchor body in a stable position. Therefore, when the shoe sole is placed into the FDM 3D printer, the anchor body is less likely to shift, which helps ensure that the relative position of the anchor body and the subsequently printed assembly meets design requirements.

[0022] Optionally, the top surface of the supporting protrusion is embedded with an insert, the insert having a connecting hole communicating with the adsorption hole. The connecting hole includes a conical section and a circular section, the conical section being located above the circular section, the larger end of the conical section facing downwards and communicating with the circular section, and the diameter of the circular section being larger than that of the adsorption hole. A frustum and a compression spring are provided inside the connecting hole of the insert, the frustum being adapted to the conical section, one end of the compression spring abutting against the edge of the adsorption hole opening, and the other end abutting against the larger end of the frustum. The compression spring is used to force the frustum to abut against the inner wall of the conical section. When the frustum abuts against the inner wall of the conical section, the upper end face of the frustum is flush with the upper surface of the insert. When the negative pressure adsorption gas path is in a negative pressure state, the frustum can overcome the elastic force of the compression spring and move downwards.

[0023] By adopting the above technical solution, when the negative pressure adsorption air path is not under negative pressure, the upper surface of the cone is flush with the upper surface of the insert, keeping the top surface of the supporting boss intact, which helps to keep the lower surface of the printed anchor solid flat. When the negative pressure air path is under negative pressure, the cone moves downward against the elastic force of the compression spring, allowing the negative pressure adsorption air path to adsorb and position the anchor solid.

[0024] In summary, this application includes at least one of the following beneficial technical effects: The anchoring element of the anchoring connector is anchored to the anchoring holes in the sole, while the connector is fixed to the upper. This anchoring effect strengthens the connection between the upper and the sole, as the anchoring element and the connector are integrated. During shoe use, some of the forces act on the connection between the connector and the sole, while the remainder acts on the connection between the anchoring element and the sole, making the bonded joints less prone to cracking. During the placement of the shoe sole, the printer head is positioned in the state of printing the buffer structure, allowing the shoe sole to be placed directly onto the FDM 3D printer without interrupting the printing process. This ensures the continuity of the printing process and helps guarantee the accuracy and quality of the print. Using a suction cup lifter to transfer the shoe sole eliminates the need for a dedicated robotic arm, simplifying the equipment's structure. The suction cup lifter 46 is mounted on the horizontal axis drive, allowing the placement and positioning of the shoe sole 1 to be achieved through the movement of the FDM 3D printer 4, thus ensuring the positional accuracy of the shoe sole 1 during placement. Attached Figure Description

[0025] Figure 1 This is a flowchart of the processing method for shoes based on 3D printing, as described in Example 1.

[0026] Figure 2 This is a schematic diagram of the FDM 3D printer in the state of printing the composite in Example 1.

[0027] Figure 3 This is a schematic diagram of the bonding state between the anchoring component and the shoe upper in Example 2.

[0028] Figure 4 yes Figure 3 A magnified view of point A in the middle.

[0029] Figure 5 This is a schematic diagram of the state of the printed assembly in Example 2.

[0030] Figure 6 This is a schematic diagram of the FDM 3D printer in Example 3.

[0031] Explanation of reference numerals in the attached figures: 1. Shoe sole; 11. Anchoring hole; 12. Connecting edge; 2. Anchoring connector; 21. Anchor body; 22. Connecting body; 23. Anchoring strip; 24. Buffer structure; 25. Thin strip structure; 4. FDM 3D printer; 41. Printing table; 42. Print head; 43. X-axis drive; 44. Y-axis drive; 45. Z-axis drive; 46. Suction cup lifter; 5. Positioning stage; 51. Support protrusion; 52. Negative pressure adsorption air path; 521. Adsorption hole; 522. Connecting air path; 523. Negative pressure connecting pipe; 53. Insert; 531. Connecting hole; 532. Conical hole section; 533. Round hole section; 534. Frustum; 535. Compression spring; 6. Conveyor belt mechanism; 7. Robot arm. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. Example 1

[0033] This application discloses a method for manufacturing shoes based on 3D printing. (Refer to...) Figure 1 , Figure 2 and Figure 3 A method for manufacturing shoes based on 3D printing includes the following steps: Step 1: Injection mold the shoe sole 1. Multiple anchoring holes 11 are reserved on the periphery of the shoe sole 1. The anchoring holes 11 are arranged vertically and vertically, and the lower opening is larger than the upper opening. A connecting edge 12 is provided on the periphery of the shoe sole 1. Step 2: Use FDM 3D printer 4 to print the anchoring component 2. The material of the anchoring component 2 is an elastic plastic material such as PU or TPU. The anchoring component 2 includes an anchor body 21 and a connecting body 22. The anchor body 21 corresponds one-to-one with the anchoring hole 11. After the anchor body 21 is printed, place the shoe sole 1 on the FDM 3D printer 4 so that the anchoring hole 11 of the shoe sole 1 matches the anchor body 21 one-to-one. Then continue to print the connecting body 22 on the anchor body 21. The connecting body 22 is a thin-walled structure and a hollow structure. The connecting body 22 is connected to each anchor body 21 as one piece. Step 3: After the anchoring connector 2 is printed, bond the connecting edge 12 of the sole 1 to the connector 22 of the anchoring connector 2. At the same time, inject glue into the gap between the anchoring hole 11 and the anchor body 21 to bond the anchoring hole 11 to the anchor body 21. Then bond the upper to the anchoring connector 2. The upper and the connector 22 can also be connected by sewing.

[0034] The principle of a 3D printed shoe processing method according to an embodiment of this application is as follows: the anchor body 21 of the anchoring connector 2 is anchored to the anchoring hole 11 of the sole 1, and the connector 22 is connected and fixed to the upper, so that the upper is anchored to the sole 1 through the anchoring connector 2. Since the anchor body 21 and the connector 22 are integrated, the connection between the upper and the sole 1 is strengthened.

[0035] Reference Figure 2 The FDM 3D printer 4 used in step 3 includes a print table 41, a print head 42, an X-axis drive 43, a Y-axis drive 44, and a Z-axis drive 45. The driving direction of the X-axis drive 43 and the direction of the Y-axis drive 44 are perpendicular to each other in the horizontal plane. The driving direction of the Z-axis drive 45 is vertical. The print head 42 is mounted on the X-axis drive 43. The X-axis drive 43 is used to drive the print head 42 to move. The Z-axis drive 45 is used to drive the X-axis drive 43 and the print head 42 to move. The Y-axis drive 44 is used to drive the print table 41 to move.

[0036] Reference Figure 3 The printing table 41 of the FDM 3D printer 4 is provided with a positioning table 5 for positioning the shoe sole 1. The positioning table 5 is provided with multiple support protrusions 51, which are configured one-to-one with multiple anchoring holes 11 of the shoe sole 1. The FDM 3D printer 4 prints the anchor body 21 on the convex surface of the support protrusion 51. When the shoe sole 1 is placed on the positioning table 5, the support protrusion 51 cooperates with the anchoring holes 11 to position the shoe sole 1. In addition, the support protrusion 51 makes the bottom surface of the anchor body 21 higher than the bottom surface of the shoe sole 1.

[0037] Reference Figure 3The positioning platform 5 is provided with a negative pressure adsorption air passage 52. The negative pressure adsorption air passage 52 includes adsorption holes 521, a connecting air passage 522, and a negative pressure connecting pipe 523. Multiple adsorption holes 521 are provided and distributed on the upper surface of the supporting protrusion 51. Multiple adsorption holes 521 are interconnected through the connecting air passage 522. The connecting air passage 522 is composed of mutually perpendicular channels. One end of the negative pressure connecting pipe 523 is connected to the connecting air passage 522, and the other end is used to connect to a vacuum generating device, i.e., a vacuum pump. The adsorption holes 521 can adsorb the bottom surface of the anchor body 21 through negative pressure.

[0038] Reference Figure 4 An insert 53 is embedded in the top surface of the supporting protrusion 51. The insert 53 has a connecting hole 531 that communicates with the adsorption hole 521. The connecting hole 531 includes a conical section 532 and a circular section 533. The conical section 532 is located above the circular section 533, with its larger end facing downwards and communicating with the circular section 533. The diameter of the circular section 533 is larger than that of the adsorption hole 521. A frustum 534 and a compression spring 535 are provided inside the connecting hole 531 of the insert 53. 4. Adapted to the conical section 532, one end of the compression spring 535 abuts against the edge of the orifice of the adsorption hole 521, and the other end abuts against the large end of the cone 534. The compression spring 535 is used to force the cone 534 to abut against the inner wall of the conical section 532. When the cone 534 abuts against the inner wall of the conical section 532, the upper end face of the cone 534 is flush with the upper surface of the insert 53. When the negative pressure adsorption gas path 52 is in a negative pressure state, the cone 534 can overcome the elastic force of the compression spring 535 and move downward.

[0039] In another embodiment, the frustum and compression spring 535 within the insert 53 can be removed to increase the suction force of the adsorption hole 521. In this case, the anchor 21 can be printed with a concave shape in the middle to avoid contact between the anchor 21 and the edge of the adsorption hole 521.

[0040] When the negative pressure air passage is under negative pressure, the cone 534, under negative pressure, overcomes the elastic force of the compression spring 535 and moves downward, allowing the negative pressure adsorption air passage 52 to adsorb and position the anchor 21, thus keeping the anchor 21 stable. Therefore, when the shoe sole 1 is placed on the FDM 3D printer 4, the anchor 21 is less likely to shift. When the negative pressure adsorption air passage 52 is not under negative pressure, the upper surface of the cone 534 is flush with the upper surface of the insert 53, keeping the top surface of the supporting boss intact, which helps to keep the lower surface of the printed anchor 21 flat.

[0041] Step 4: When bonding the upper and the anchoring connector, another positioning platform 5 is set at the bonding station. The positioning platform at the bonding station is called the outer positioning platform. The structure of the outer positioning platform is the same as that of the positioning platform 5 on the printing platform 41. The combination of the sole 1 and the anchoring connector is placed on the outer positioning platform, and downward pressure is applied to the sole 1 so that the hole wall of the anchoring hole 11 and the support protrusion 51 apply pre-compression stress to the anchor body 21.

[0042] In step 3, the sole 1 is conveyed by the conveyor belt mechanism 6 and transferred and placed on the positioning table 5 by the robot arm 7. The conveying direction of the conveyor belt mechanism 6 is consistent with the driving direction of the X-axis drive 43. Example 2

[0043] Reference Figure 5 The difference between this embodiment and embodiment 1 is that in step 3, each anchor body 21 is connected to an anchoring strip 23 at its lower end, and the anchoring strip 23 is printed and connected to the anchor body 21 by an FDM 3D printer 4; the lower surface of the shoe sole 1 is provided with an anchoring groove that is compatible with the anchoring strip 23.

[0044] In this embodiment, during the printing of the anchor body 21, a buffer structure 24 is simultaneously printed outside the distribution range of the sole 1. The buffer structure 24 is aligned vertically with the anchor body 21. The upper and lower ends of the buffer structure 24 are flat structures, and the middle is a thin rod structure. The bottom of the buffer structure 24 is connected to the bottom of the anchor strip 23 by a thin strip structure 25. The thin strip structure 25 passes through the concave texture on the bottom of the sole 1. During the placement of the sole 1, the printing head 42 is positioned at the top of the printing buffer structure 24.

[0045] The principle of this embodiment is that during the placement of the shoe sole 1, the printer head is in the state of printing the buffer structure, so that the shoe sole 1 can be placed directly on the printing table 41 of the FDM 3D printer without stopping the printing process, thereby ensuring the continuity of the printing state and helping to ensure the accuracy and quality of printing. Example 3

[0046] Reference Figure 6 The difference between this embodiment and embodiment 1 is that the robotic arm 7 is not provided in this embodiment. In this embodiment, the X-axis drive 43 of the FDM 3D printer 4 is provided with a suction cup lifter 46. The suction cup lifter 46 is higher than the print head 42 and is offset from the print head 42 along the X-axis direction. The suction cup lifter 46 is provided with multiple vacuum suction cups. The vacuum suction cups are used to connect to the negative pressure generating device and are used to adsorb the shoe sole 1.

[0047] The suction cup lifter 46 is used to transfer the shoe sole 1, eliminating the need for manual placement of the shoe sole 1 or a dedicated robotic arm 7 for transferring the shoe sole 1, which simplifies the equipment structure. The suction cup lifter 46 is mounted on the horizontal axis drive, allowing the placement and positioning of the shoe sole 1 to be achieved by the movement of the FDM 3D printer 4, which helps ensure the positional accuracy of the shoe sole 1 during placement.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for processing shoes based on 3D printing, characterized in that, Includes the following steps: Injection-molded shoe sole (1), multiple anchoring holes (11) are reserved on the peripheral edge of the shoe sole (1), the anchoring holes (11) are arranged vertically, and the lower opening is larger than the upper opening; An anchoring assembly (2) is formed using an FDM 3D printer (4). The anchoring assembly (2) includes an anchor body (21) and a connecting body (22). The anchor body (21) corresponds one-to-one with the anchor holes (11). After the anchor body (21) is printed, the shoe sole (1) is placed on the FDM 3D printer (4) so ​​that the anchor holes (11) of the shoe sole (1) correspond one-to-one with the anchor body (21). Then, the connecting body (22) is printed on the anchor body (21). The connecting body (22) is a thin-walled structure and is integrated with each anchor body (21). After the anchoring connector (2) is printed, the shoe upper is connected and fixed to the anchoring connector (2).

2. The processing method for shoes based on 3D printing according to claim 1, characterized in that: The sole (1) has a connecting edge (12) extending upward from its periphery. The connecting edge (12) is bonded and fixed to the assembly (22). The material of the anchoring assembly (2) is PU or TPU.

3. The processing method for shoes based on 3D printing according to claim 1, characterized in that: Each of the anchor bodies (21) is connected to an anchoring strip (23) at its lower end, and the sole (1) is provided with an anchoring groove that is compatible with the anchoring strip (23).

4. The processing method for shoes based on 3D printing according to claim 1, characterized in that: The FDM 3D printer (4) is provided with a positioning platform (5) for positioning the shoe sole (1). The positioning platform (5) is provided with a plurality of support protrusions (51). The plurality of support protrusions (51) are provided in a one-to-one correspondence with the plurality of anchor holes (11) of the shoe sole (1). When the shoe sole (1) is placed on the FDM 3D printer (4), the support protrusions (51) make the bottom surface of the anchor body (21) higher than the bottom surface of the shoe sole (1).

5. A method for processing shoes based on 3D printing according to claim 4, characterized in that: The positioning platform (5) is provided with a negative pressure adsorption air passage (52). The negative pressure adsorption air passage (52) includes an adsorption hole (521), a connecting air passage (522), and a negative pressure connecting pipe (523). There are multiple adsorption holes (521) and they are distributed on the upper surface of the support protrusion (51). The multiple adsorption holes (521) are interconnected through the connecting air passage (522). One end of the negative pressure connecting pipe (523) is connected to the connecting air passage (522), and the other end is used to connect to a vacuum generator. The adsorption holes (521) can adsorb the bottom surface of the anchor body (21) through negative pressure.

6. The processing method for shoes based on 3D printing according to claim 5, characterized in that: The top surface of the supporting protrusion (51) is fitted with an insert (53). The insert (53) has a connecting hole (531) communicating with the adsorption hole (521). The connecting hole (531) includes a conical section (532) and a circular section (533). The conical section (532) is located above the circular section (533), with its larger end facing downwards and communicating with the circular section (533). The diameter of the circular section (533) is larger than that of the adsorption hole (521). A frustum (534) and a compression spring (535) are provided inside the connecting hole (531) of the insert (53). 534) is adapted to the conical hole section (532). One end of the compression spring (535) abuts against the edge of the opening of the adsorption hole (521), and the other end abuts against the large end of the cone (534). The compression spring (535) is used to force the cone (534) to abut against the inner wall of the conical hole section (532). When the cone (534) abuts against the inner wall of the conical hole section (532), the upper end face of the cone (534) is flush with the upper surface of the insert (53). When the negative pressure adsorption gas path (52) is in a negative pressure state, the cone (534) can overcome the elastic force of the compression spring (535) and move downward.

7. A method for processing shoes based on 3D printing according to claim 4, characterized in that: When bonding the upper and the anchoring connector, another positioning platform (5) is set at the bonding station. The positioning platform (5) of the bonding station is set as an outer positioning platform. The structure of the outer positioning platform is the same as the positioning platform (5) on the printing platform (41). The combination of the sole (1) and the anchoring connector is placed on the outer positioning platform of the bonding station. A downward pressure is applied to the sole (1) so that the hole wall of the anchoring hole (11) and the support protrusion (51) apply pre-compression stress to the anchor body (21).

8. The processing method for shoes based on 3D printing according to claim 1, characterized in that: The sole (1) is conveyed by a conveyor belt mechanism (6) and transferred and placed on the positioning stage (5) of the FDM 3D printer (4) by a robot arm (7).

9. A method for processing shoes based on 3D printing according to claim 1, characterized in that: During the printing of the anchor body (21), a cushioning structure (24) is printed outside the distribution range of the sole (1). The cushioning structure (24) is aligned vertically with the anchor body (21). The upper and lower ends of the cushioning structure (24) are flat structures, and the middle is a thin rod structure. During the placement of the sole (1), the printing head (42) is positioned at the top of the printed cushioning structure (24).

10. A method for processing shoes based on 3D printing according to claim 1, characterized in that: The FDM 3D printer (4) includes a printing table (41), a print head (42), an X-axis drive (43), a Y-axis drive (44), and a Z-axis drive (45). The print head (42) is mounted on the X-axis drive (43). The X-axis drive (43) is used to drive the print head (42) to move. The Z-axis drive (45) is used to drive the X-axis drive (43) and the print head (42) to move. The Y-axis drive (44) is used to drive the printing table (41) to move. The X-axis drive (43) is provided with a suction cup lifter (46). The suction cup lifter (46) is higher than the print head (42) and is offset from the print head (42) along the X-axis direction. The suction cup lifter (46) is provided with multiple vacuum suction cups. The vacuum suction cups are used to adsorb the soles (1) of shoes.

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