A punching device for safety shoe processing

Abstract

This invention belongs to the field of shoe processing technology, specifically relating to a perforation device for safety shoe processing, including a perforation machine and a fixed frame fixedly mounted on the perforation machine. A hydraulic pump is fixedly mounted on the fixed frame, and an upper mold is mounted on the telescopic end of the hydraulic pump. A lower mold platform aligned with the upper mold is provided on the crossbar of the fixed frame. An anti-blocking mechanism is provided at the lower end of the lower mold platform. The anti-blocking mechanism includes a fixed box located at the lower end of the lower mold platform, and an air vent is mounted on the fixed box. Side wing plates for intersecting with the inner side of the crossbar are symmetrically fixedly mounted at the lower end of the lower mold platform. This invention automatically pushes the waste material upward under the action of a first return spring through the ejector assembly, avoiding blockage of the die holes caused by different shoe upper thickness specifications. At the same time, it creates a gap between the ejector assembly and the anti-slip block, creating conditions for subsequent material removal. The rounded chamfer at the upper end of the ejector rod prevents the waste material from penetrating.

Description

Technical Field

[0001] This invention belongs to the field of shoe processing technology, specifically relating to a punching device for processing safety shoes. Background Technology

[0002] Safety shoes are an indispensable personal protective equipment in industrial production. Their uppers are usually made of leather, high-strength fabrics or composite materials, and have good abrasion resistance, puncture resistance and impact resistance. In the production process of safety shoes, perforation of the upper is an important process, mainly used to install ventilation holes, thread shoelaces or decorative openings. The quality of perforation directly affects the wearing comfort and appearance of safety shoes.

[0003] Currently, perforation of safety shoe uppers is mostly done using stamping-type perforation equipment. Through the cooperation of the upper die punch and the lower die table, holes of the required shape are punched into the shoe upper material. However, existing perforation equipment has the following problems during use: First, the circular waste material generated during punching is prone to getting stuck in the lower die hole. If the waste material is not discharged in time, it will hinder the punch from moving downwards during subsequent punching, causing the punching position to deviate, the hole wall to become rough, or even causing the punch to break or the die to be damaged. Second, some waste material, after being carried out by the punch, may bounce upwards and fall onto the surface of the lower die table. When the shoe upper is placed later, the residual waste material will form indentations or protrusions on the shoe upper material, affecting the processing accuracy and the appearance of the finished product.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a punching device for processing safety shoes, so as to solve the problems of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A punching device for processing safety shoes includes a punching machine and a fixed frame fixedly installed on the punching machine. A hydraulic pump is fixedly installed on the fixed frame. An upper mold is installed on the telescopic end of the hydraulic pump. A lower mold platform aligned with the upper mold is provided on the crossbar of the fixed frame. An anti-blocking mechanism is provided at the lower end of the lower mold platform. The anti-blocking mechanism includes a fixed box located at the lower end of the lower mold platform, an air vent seat installed on the fixed box, and side wing plates symmetrically fixedly installed at the lower end of the lower mold platform for intersecting the inner side of the cross frame. The side wing plates are fixedly connected to the cross frame by bolts. Several sets of lower mold holes are opened on the lower mold platform. A fixed plate is movably installed inside the fixed box. Several ejector components aligned with the lower end of the lower mold holes are arranged in an orderly manner on the fixed plate. Each lower mold hole is provided with an anti-detachment component.

[0007] Preferably, the top material assembly includes a bottom cylinder fixedly mounted on the upper end of a fixed plate, a top material rod slidably connected to the bottom cylinder, a first return spring fixedly mounted inside the cavity of the bottom cylinder, the upper end of the first return spring being fixedly connected to the lower end of the top material rod, and the upper end of the top material rod having a rounded chamfer.

[0008] Preferably, the processing table of the drilling machine has a groove, which is located in the center of the inner side of the fixed frame. A cylinder is fixedly installed in the groove, and the telescopic end of the cylinder is fixedly connected to the lower end of the fixed plate.

[0009] Preferably, the inner side of the fixing box is symmetrically provided with two sets of limiting grooves, and a first limiting rod is fixedly installed on each limiting groove. A protrusion that is slidably connected to the limiting groove is fixedly installed on the fixing plate, and the protrusion is sleeved with the first limiting rod.

[0010] Preferably, the anti-detachment component includes an annular groove formed inside the lower mold platform and communicating with the lower mold hole. Each annular groove is fixedly installed with a fixing ring. The fixing rings are arranged in a ring with four sets of sliding blocks. Each sliding block is slidably installed with an anti-detachment block for preventing material detachment.

[0011] Preferably, each of the slide blocks has a sliding groove on its inner side, and a second limiting rod that passes through the side ear of the anti-detachment block is fixedly installed in the sliding groove. A second return spring is sleeved on the outside of the second limiting rod, and one end of the second return spring is fixedly connected to the side ear of the anti-detachment block. Each end of the anti-detachment block near the center of the fixing ring has a chamfer.

[0012] Preferably, a recycling component is provided in the groove. The recycling component includes a collection box installed in the groove. A cover is detachably installed on the upper end of the collection box. An insertion port is opened on the side of the collection box near the fixing box. A discharge hose is fixedly installed on the fixing box. A connection socket for plugging into the insertion port is fixedly installed on the end of the discharge hose away from the collection box. Two sets of negative pressure fans are equidistantly arranged inside the collection box. A support frame is fixedly installed on the inner side of the collection box. A filter screen is attached to the upper end of the support frame. Assembly plates are fixedly installed on both sides of the fixing box. The assembly plates are fixedly connected to the lower end of the lower mold table by bolts.

[0013] Preferably, two sets of calibration seats are symmetrically installed on the side of the collection box near the discharge hose. The two calibration seats are respectively located at the left and right ends of the socket. The calibration seats are provided with U-shaped grooves that are adapted to the side of the connection socket. The outer side of the calibration seat is threaded with a fastening pin for fastening the connection socket. Vents are provided on both sides of the collection box.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The punching equipment for safety shoe processing of the present invention, by setting an anti-detachment component, uses the anti-detachment block to support the waste material from above after punching, effectively preventing the waste material from being carried out by the punch or popping up and falling onto the surface of the lower mold table, thus avoiding the waste material from causing indentations or damage to the subsequent shoe upper processing.

[0015] (2) The punching equipment for processing safety shoes of the present invention automatically pushes the waste material upward under the action of the first reset spring through the top material assembly, so as to avoid the blockage of the die hole caused by different shoe upper thickness specifications, and at the same time, it creates a gap between the die and the anti-detachment block, so as to create conditions for subsequent material removal. The rounded chamfer at the upper end of the top material rod prevents the waste material from penetrating.

[0016] (3) The punching equipment for processing safety shoes of the present invention automatically sucks the slipping waste into the collection box by the negative pressure generated by the negative pressure fan, the filter screen intercepts the waste for centralized treatment, the cover is detachable, and the collection box is easy to clean. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the lower mold table of the present invention; Figure 3 This is a schematic diagram of the transverse cross-sectional structure of the lower mold platform of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the lower mold platform of the present invention; Figure 5 This is the invention Figure 2 Enlarged structural diagram at point A in the diagram; Figure 6 This is the invention Figure 3 Enlarged structural diagram at point B in the diagram; Figure 7 This is a schematic diagram of the cross-sectional structure of the slide block of the present invention; Figure 8 This is a schematic diagram of the longitudinal cross-sectional structure of the bottom cylinder of the present invention; Figure 9 This is a schematic diagram of the material collection box structure of the present invention; Figure 10This is a schematic diagram of the longitudinal cross-sectional structure of the material collection box of the present invention.

[0018] Explanation of key figure labels: 1. Drilling machine; 11. Fixing frame; 12. Hydraulic pump; 2. Lower mold table; 21. Side wing plate; 22. Lower mold hole; 3. Anti-blocking mechanism; 31. Fixing box; 311. Limiting groove; 312. First limiting rod; 313. Assembly plate; 32. Air outlet seat; 33. Fixing plate; 34. Ejector assembly; 341. Bottom cylinder; 342. Ejector rod; 343. First return spring; 35. Cylinder; 4. Anti-detachment component; 41. Annular groove; 42. Fixing ring; 43. Slide seat; 431. Second limit rod; 432. Second return spring; 44. Anti-detachment block; 5. Recycling component; 51. Collection box; 511. Cover; 512. Exhaust vent; 513. Negative pressure fan; 514. Support frame; 515. Filter screen; 52. Discharge hose; 521. Connecting socket; 53. Calibration seat; 54. Fastening pin. Detailed Implementation

[0019] The technical solution of this invention patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0020] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] See attached document Figure 1-10A punching device for processing safety shoes includes a punching machine 1 and a fixed frame 11 fixedly installed on the punching machine 1. A hydraulic pump 12 is fixedly installed on the fixed frame 11. An upper mold is installed on the telescopic end of the hydraulic pump 12. A lower mold platform 2 aligned with the upper mold is provided on the crossbar of the fixed frame 11. An anti-blocking mechanism 3 is provided at the lower end of the lower mold platform 2. The anti-blocking mechanism 3 includes a fixed box 31 located at the lower end of the lower mold platform 2. An air vent seat 32 is installed on the fixed box 31. Side wing plates 21 for intersecting with the inner side of the cross frame are symmetrically fixedly installed at the lower end of the lower mold platform 2. The side wing plates 21 are fixedly connected to the cross frame by bolts. Several sets of lower mold holes 22 are opened on the lower mold platform 2. A fixed plate 33 is movably installed inside the fixed box 31. Several ejector components 34 aligned with the lower end of the lower mold holes 22 are arranged in an orderly manner on the fixed plate 33. An anti-detachment component 4 is provided in each lower mold hole 22.

[0023] Furthermore, the punching machine 1 supports the hydraulic pump 12 through the fixed frame 11. The hydraulic pump 12 drives the upper die to move up and down to punch holes. The lower die table 2 is fixed to the crossbeam of the fixed frame 11 by the side wing plate 21, ensuring that the lower die table 2 is stable and does not shake during the punching process. Several sets of lower die holes 22 are opened on the lower die table 2 as punching channels. It should be noted that the lower die table 2 is customized for a single style of inclined surface. The anti-blocking mechanism 3 is set by the fixed box 31 and the air outlet seat 32 to prevent waste from blocking the lower die holes 22. The fixed plate 33 inside the fixed box 31 is equipped with a material ejector assembly 34 to eject the waste generated by punching from the lower die holes 22. Each lower die hole 22 is equipped with an anti-detachment assembly 4 to prevent the waste from falling from the top of the die hole onto the surface of the lower die. The air outlet seat 32 can be connected to an external air source to draw air into the fixed box 31 when needed to help clean up residual waste.

[0024] The top material assembly 34 includes a bottom cylinder 341 fixedly installed on the upper end of the fixed plate 33, a top material rod 342 slidably connected to the bottom cylinder 341, a first return spring 343 fixedly installed inside the cavity of the bottom cylinder 341, the upper end of the first return spring 343 being fixedly connected to the lower end of the top material rod 342, and the upper end of the top material rod 342 having a rounded chamfer.

[0025] Furthermore, the bottom cylinder 341 is fixedly installed on the upper end of the fixed plate 33, and the ejector rod 342 is slidably installed inside the bottom cylinder 341. The diameter of the ejector rod 342 is slightly smaller than the diameter of the lower die hole 22 to ensure smooth sliding. The first return spring 343 provides an upward elastic force. When the hydraulic pump 12 drives the upper die to punch, it will squeeze the ejector rod 342 downward. When the hydraulic pump 12 drives the upper die to reset, the ejector rod 342 pushes the waste upward through the first return spring 343 to avoid jamming and loosen it. The upper end of the ejector rod 342 has a rounded chamfer to reduce friction with the edge of the waste and prevent it from penetrating the waste. When the fixed plate 33 descends, the ejector rod 342 is no longer located inside the lower die hole 22. At this time, the waste is no longer blocked and thus slides down.

[0026] The drilling machine 1 has a groove on its processing table. The groove is located in the center of the inner side of the fixed frame 11. A cylinder 35 is fixedly installed in the groove. The telescopic end of the cylinder 35 is fixedly connected to the lower end of the fixed plate 33.

[0027] Furthermore, a groove is opened on the processing table of the drilling machine 1, and a cylinder 35 is fixedly installed in the groove. The telescopic end of the cylinder 35 is fixedly connected to the lower end of the fixed plate 33. The upward driving unit can be a cylinder 35, an electric push rod or other linear drive element, used to drive the fixed plate 33 to move up and down.

[0028] Two sets of limiting grooves 311 are symmetrically opened on the inner side of the fixing box 31. A first limiting rod 312 is fixedly installed on each limiting groove 311. A protrusion that is slidably connected to the limiting groove 311 is fixedly installed on the fixing plate 33, and the protrusion is sleeved with the first limiting rod 312.

[0029] Furthermore, two sets of limiting grooves 311 are symmetrically opened on the inner side of the fixed box 31. The first limiting rod 312 is fixedly installed in the limiting groove 311. The protrusion on the fixed plate 33 is slidably connected to the limiting groove 311 and sleeved on the first limiting rod 312 to ensure that the fixed plate 33 remains vertical and does not tilt during the lifting process.

[0030] The anti-detachment component 4 includes an annular groove 41 that is opened inside the lower mold platform 2 and communicates with the lower mold hole 22. The annular groove 41 is fixedly installed with a fixing ring 42. The fixing ring 42 has four sets of slide blocks 43 arranged in a ring. Anti-detachment blocks 44 for preventing material detachment are slidably installed on each slide block 43.

[0031] Furthermore, when the punch is pressing, the anti-detachment block 44 is pushed back to both sides by the pressure of the punch. After the punch retracts, the anti-detachment block 44 resets and supports the waste material from below, preventing the waste material from falling out from above and avoiding the waste material from falling onto the surface of the lower mold table 2, thus preventing indentations or damage during subsequent shoe upper processing.

[0032] The inner side of the slide block 43 is provided with a slide groove. A second limiting rod 431 that passes through the side ear of the anti-detachment block 44 is fixedly installed in the slide groove. A second return spring 432 is sleeved on the outside of the second limiting rod 431. One end of the second return spring 432 is fixedly connected to the side ear of the anti-detachment block 44. The end of the anti-detachment block 44 near the center of the fixing ring 42 is provided with a chamfer.

[0033] Furthermore, when the anti-detachment block 44 slides outward under the pressure of the punch, it compresses the second return spring 432. After the punch retracts, the second return spring 432 pushes the anti-detachment block 44 to reset. The anti-detachment block 44 has a chamfer at one end near the center of the fixed ring 42 to facilitate the smooth passage of the punch.

[0034] A recycling component 5 is provided in the groove. The recycling component 5 includes a collection box 51 installed in the groove. A cover 511 is detachably installed on the upper end of the collection box 51. An insertion port is opened on the side of the collection box 51 near the fixed box 31. A discharge hose 52 is fixedly installed on the fixed box 31. A connection socket 521 for plugging into the insertion port is fixedly installed on the end of the discharge hose 52 away from the collection box 51. Two sets of negative pressure fans 513 are equidistantly arranged inside the collection box 51. A support frame 514 is fixedly installed on the inner side of the collection box 51. A filter screen 515 is attached to the upper end of the support frame 514. Assembly plates 313 are fixedly installed on both sides of the fixed box 31. The assembly plates 313 are fixedly connected to the lower end of the lower mold table 2 by bolts.

[0035] Furthermore, a discharge hose 52 is fixedly installed on the fixed box 31, and the connecting socket 521 at its end is inserted into the socket on the side of the collection box 51. Two sets of negative pressure fans 513 are installed inside the collection box 51 to generate negative pressure to suck in the waste. A filter screen 515 is attached to the support frame 514 to intercept the waste and prevent it from entering the negative pressure fan 513. The negative pressure generated by the negative pressure fan 513 will automatically suck the ejected waste into the collection box 51, eliminating the need for manual cleaning. The filter screen 515 intercepts the waste, facilitating centralized processing and recycling.

[0036] Two sets of calibration seats 53 are symmetrically installed on the side of the material collection box 51 near the discharge hose 52. The two calibration seats 53 are located at the left and right ends of the socket, respectively. The calibration seats 53 have U-shaped grooves that are adapted to the side of the connecting socket 521. The outer threads of the calibration seats 53 are threaded with fastening pins 54 for fastening the connecting socket 521. Both sides of the material collection box 51 have exhaust vents 512.

[0037] Furthermore, a U-shaped groove is formed on the calibration base 53 to fit the side of the connecting socket 521. A fastening pin 54 is threaded through the outside of the calibration base 53 to lock the connecting socket 521.

[0038] In actual use, the shoe upper material is placed on the lower mold table 2, and the hydraulic pump 12 is started to drive the upper mold to punch downward. The upper mold punch passes through the shoe upper material and enters the lower mold hole 22. During this process, the punch pushes the anti-detachment block 44 of the anti-detachment component 4 to slide outward along the slide block 43, compressing the second return spring 432. The punch smoothly passes through the lower die hole 22. At the same time, the punch presses down on the ejector rod 342, causing it to overcome the elastic force of the first return spring 343 and move downward to make room for the scrap. The circular scrap generated by punching enters the lower die hole 22 and is supported from below by the anti-detachment block 44. After punching is completed, the upper die retracts. At this time, the anti-detachment block 44 resets inward under the elastic force of the second return spring 432, continuing to support the scrap from below, preventing the scrap from being carried out by the punch or ejected upward and falling onto the surface of the lower die table 2. This effectively avoids the scrap getting stuck in the die hole and causing indentations or damage to the subsequent shoe upper processing. At the same time, the ejector rod 342 resets upward under the elastic force of the first return spring 343, pushing the scrap upward, so that it is supported by the anti-detachment block 44 and the ejector rod. When the rods 342 loosen, the cylinder 35 starts, driving the fixed plate 33 to move downward. The fixed plate 33 descends smoothly under the guidance of the limiting groove 311 and the first limiting rod 312, driving the top material assembly 34 to descend synchronously. The top material rod 342 gradually exits the lower mold hole 22. When the top material rod 342 completely exits the lower mold hole 22, the waste is no longer blocked and slides down naturally from the bottom of the lower mold hole 22 under the action of gravity. The negative pressure fan 513 continues to run, generating negative pressure in the discharge hose 52 and the collection box 51. The waste sliding down from the lower mold hole 22 is sucked into the discharge hose 52 under the action of negative pressure, enters the collection box 51 through the connecting socket 521, and the filter screen 515 intercepts the waste, causing it to settle at the bottom of the collection box 51. The air is discharged by the negative pressure fan 513. After the collection box 51 is full, the fastening screw 54 is loosened, the connecting socket 521 is pulled out, and the cover 511 is opened to clean the waste.

[0039] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A punching device for processing safety shoes, comprising a punching machine (1) and a fixed frame (11) fixedly mounted on the punching machine (1), wherein a hydraulic pump (12) is fixedly mounted on the fixed frame (11), an upper mold is mounted on the telescopic end of the hydraulic pump (12), a lower mold platform (2) aligned with the upper mold is provided on the crossbar of the fixed frame (11), and an anti-blocking mechanism (3) is provided at the lower end of the lower mold platform (2). Its features are, The anti-blocking mechanism (3) includes a fixed box (31) set at the lower end of the lower mold platform (2), an air outlet seat (32) is installed on the fixed box (31), and a side wing plate (21) for intersecting with the inner side of the cross frame is symmetrically fixedly installed at the lower end of the lower mold platform (2). The side wing plate (21) is fixedly connected to the cross frame by bolts. Several sets of lower mold holes (22) are opened on the lower mold platform (2). A fixed plate (33) is movably installed inside the fixed box (31). Several ejector components (34) are arranged in an orderly manner on the fixed plate (33) and are aligned with the lower end of the lower mold hole (22). An anti-detachment component (4) is provided in each lower mold hole (22).

2. The punching equipment for processing safety shoes according to claim 1, characterized in that, The top material assembly (34) includes a bottom cylinder (341) fixedly installed on the upper end of the fixed plate (33), a top material rod (342) is slidably connected on the bottom cylinder (341), a first return spring (343) is fixedly installed in the cavity of the bottom cylinder (341), the upper end of the first return spring (343) is fixedly connected to the lower end of the top material rod (342), and the upper end of the top material rod (342) is provided with a rounded chamfer.

3. The punching equipment for processing safety shoes according to claim 2, characterized in that, The drilling machine (1) has a groove on its processing table. The groove is located in the center of the inner side of the fixing frame (11). A cylinder (35) is fixedly installed in the groove. The telescopic end of the cylinder (35) is fixedly connected to the lower end of the fixing plate (33).

4. The punching equipment for processing safety shoes according to claim 3, characterized in that, The inner side of the fixed box (31) is symmetrically provided with two sets of limiting grooves (311). A first limiting rod (312) is fixedly installed on each of the limiting grooves (311). A protrusion that is slidably connected to the limiting groove (311) is fixedly installed on the fixed plate (33), and the protrusion is sleeved with the first limiting rod (312).

5. The punching equipment for processing safety shoes according to claim 4, characterized in that, The anti-detachment component (4) includes an annular groove (41) that is opened inside the lower mold platform (2) and communicates with the lower mold hole (22). A fixing ring (42) is fixedly installed inside the annular groove (41). Four sets of slide blocks (43) are arranged in a ring on the fixing ring (42). Anti-detachment blocks (44) for preventing material detachment are slidably installed on the slide blocks (43).

6. A punching device for processing safety shoes according to claim 5, characterized in that, The inner side of each slide block (43) is provided with a slide groove. A second limiting rod (431) that passes through the side ear of the anti-detachment block (44) is fixedly installed in the slide groove. A second return spring (432) is sleeved on the outside of the second limiting rod (431). One end of the second return spring (432) is fixedly connected to the side ear of the anti-detachment block (44). The end of the anti-detachment block (44) near the center of the fixing ring (42) is provided with a chamfer.

7. A punching device for processing safety shoes according to claim 6, characterized in that, A recycling component (5) is provided in the groove. The recycling component (5) includes a collection box (51) installed in the groove. A cover (511) is detachably installed on the upper end of the collection box (51). An insertion port is opened on the side of the collection box (51) near the fixed box (31). A discharge hose (52) is fixedly installed on the fixed box (31). A connection socket (521) for plugging into the insertion port is fixedly installed on the end of the discharge hose (52) away from the collection box (51). Two sets of negative pressure fans (513) are equidistantly arranged inside the collection box (51). A support frame (514) is fixedly installed on the inner side of the collection box (51). A filter screen (515) overlaps the upper end of the support frame (514). An assembly plate (313) is fixedly installed on both sides of the fixed box (31). The assembly plate (313) is fixedly connected to the lower end of the lower mold table (2) by bolts.

8. A punching device for processing safety shoes according to claim 7, characterized in that, Two sets of calibration seats (53) are symmetrically installed on the side of the material collection box (51) near the discharge hose (52). The two calibration seats (53) are located at the left and right ends of the socket, respectively. The calibration seats (53) have U-shaped grooves that are adapted to the side of the connecting socket (521). The outer side of the calibration seats (53) is threaded with fastening pins (54) for fastening the connecting socket (521). The material collection box (51) has exhaust vents (512) on both sides.

Images