A punching, trimming and deburring device for aluminum toe caps of safety shoes

Abstract

The present application relates to the technical field of safety shoes production and processing, and discloses a punching, trimming and deburring device for aluminum toe caps of safety shoes, which comprises a machine body, a punch forming machine, a slitting machine and a deburring mechanism are sequentially arranged in the machine body from left to right, an automatic feeding mechanism, a discharging mechanism, a lower die seat, a position adjusting structure for driving the lower die seat to slide leftward and rightward, and a telescopic material placing table are further arranged on the machine body, an upper die adapted to the lower die seat is mounted at the lower end of the punch forming machine, and a push plate and a plurality of first springs connected to the push plate are slidably arranged in the upper die. The present application has the following advantages and effects: the aluminum toe cap can be automatically and continuously produced with high quality, high efficiency and safety.

Description

Technical Field

[0001] This invention relates to the field of workwear manufacturing and processing technology, and in particular to a stamping, trimming and deburring device for aluminum toe caps on workwear. Background Technology

[0002] As an important safety component of work shoes, aluminum toe caps are typically manufactured through processes such as stamping, trimming, and deburring.

[0003] The traditional production model separates these processes: first, aluminum sheets are stamped into approximately bowl-shaped blanks using stamping equipment; then, the blanks are manually removed and sent to a slitting machine for cutting; finally, they are manually sent to a deburring machine to remove the burrs generated during the cutting process. This step-by-step production method has the following main disadvantages:

[0004] 1. The transition between processes requires frequent manual handling and repeated positioning, which is time-consuming and labor-intensive;

[0005] 2. Double or even triple clamping can easily lead to cumulative errors, affecting the fit between the aluminum toe cap and the inside of the shoe toe, and thus affecting the protective performance;

[0006] 3. During deburring, the lack of effective limiting of the aluminum head can easily affect the grinding quality, and the sharp aluminum chips and burrs also pose a safety hazard to the operator.

[0007] 4. Difficult to adapt to the needs of automated and intelligent production lines.

[0008] Therefore, there is an urgent need for a specialized piece of equipment that can integrate these processes, achieve continuous automated production of aluminum cladding heads, and effectively solve the burr problem. Summary of the Invention

[0009] The purpose of this invention is to provide a stamping, trimming, and deburring device for aluminum toe caps on work shoes, which can achieve high-quality, efficient, and safe automated continuous production of aluminum toe caps.

[0010] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a stamping, trimming, and deburring device for aluminum toe caps of work shoes, comprising a machine body, wherein a stamping forming machine, a slitting machine, and a deburring mechanism are arranged sequentially from left to right on the machine body, and an automatic feeding mechanism, a feeding mechanism, a lower die base, an adjustment structure for driving the lower die base to slide left and right, and a telescopic feeding platform are also provided on the machine body, wherein an upper die adapted to the lower die base is installed at the lower end of the stamping forming machine, and a push plate and a plurality of first springs connecting the push plate are slidably arranged inside the upper die.

[0011] By adopting the above technical solution, the core of this device lies in the combination of an integrated layout and a single-mold flow model. The three functional stations of stamping, trimming, and deburring are arranged in a straight line. The same lower die base carrying the aluminum sheet blank is driven by an automatic adjustment structure to move precisely between each station. The automatic feeding mechanism is responsible for automatically placing the aluminum sheet onto the telescopic feeding platform of the initial station. The automatic unloading mechanism removes the finished product after processing. The upper die of the stamping forming machine has a spring-driven push plate that can eject the blank that may be stuck in the mold cavity after stamping, realizing automated demolding. The entire process is continuous and automatic, without manual intervention, which greatly improves efficiency and ensures the consistency of the processing benchmark of each workpiece.

[0012] A further configuration of the present invention is as follows: the adjustment structure includes a first motor installed on one side of the machine body, a one-way lead screw installed on the output end of the first motor, a guide rod installed on the machine body parallel to one side of the one-way lead screw, a movable frame fixedly installed at the bottom of the lower mold base and threadedly connected to the one-way lead screw and slidably connected to the guide rod, and a limiting component for fixing the molding die material is provided on the movable frame.

[0013] By adopting the above technical solution, the first motor drives the precision lead screw to rotate, which is transformed into a high-precision linear motion of the lower mold base driven by the moving frame under the constraint of the guide rod. This driving method has accurate positioning and stable operation, which can ensure that the workpiece is in the preset correct position at each processing station, and is the basis for realizing an automated production line.

[0014] A further configuration of the present invention is as follows: the limiting component includes a second motor installed on one side of the movable frame, a bidirectional lead screw installed on the output end of the second motor, two fixed rods installed in the movable frame, two movable plates symmetrically installed on the bidirectional lead screw and slidably connected to the fixed rods, and a clamping plate fixedly installed on the upper end of the movable plate.

[0015] By adopting the above technical solution, the two clamping plates can be driven to move in opposite directions or in the opposite direction by the second motor to clamp or release the blanks stamped on the lower die base. Compared with manual clamping, this automated clamping method can quickly and stably fix workpieces of different sizes, prevent them from shifting during stamping and transfer, ensure processing accuracy, and facilitate integrated control.

[0016] A further feature of the present invention is that the telescopic feeding platform includes a rectangular plate located directly below the upper mold, the rectangular plate is provided with a circular hole for the lower mold base to pass through, four columns are fixedly mounted on the bottom of the rectangular plate, a fixed plate is installed inside the machine body and slidably connected to the columns, a retaining ring is installed on the columns, and a second spring abuts against the retaining ring and the fixed plate.

[0017] By adopting the above technical solution, the structure forms a flexible buffer platform. When the upper die has not moved to this position, the feeding platform is in a high position under the support of the spring, which facilitates the feeding mechanism to accurately place the flat aluminum material to be processed. When the stamping process begins and the upper die moves down to stamp the aluminum plate placed on the feeding platform, the feeding platform can appropriately compress the spring and move down, which not only ensures the effective transmission of stamping force, but also automatically resets after demolding, preparing for the feeding action.

[0018] A further configuration of the present invention is as follows: the automatic feeding mechanism includes a bracket fixed to one side of the machine body, a linear electric guide rail is installed at the upper end of the bracket, a sliding plate is installed at the output end of the linear electric guide rail, a first electric push rod is installed at the other end of the sliding plate, and a first suction cup is installed at the output end of the first electric push rod.

[0019] By adopting the above technical solution, the mechanism realizes automatic picking and precise placement of aluminum plates. The linear electric guide rail enables a wide range of horizontal movement, and the first electric push rod controls vertical lifting. Together with the first suction cup to grab the aluminum plate, it can accurately transport the aluminum plate from the raw material stack to the correct position of the telescopic feeding platform, saving labor and ensuring precise positioning.

[0020] A further provision of the present invention is that: a slitting blade is installed at the lower end of the slitting machine, and the deburring mechanism includes a deburring machine disposed on the machine body, wherein a polishing head and a protective structure are fixedly mounted at the bottom of the deburring machine.

[0021] By adopting the above technical solution, the slitting and deburring functional modules are directly integrated into the process. The slitting machine cuts the stamped blank into two heads, while the deburring machine uses polishing blades to grind and polish the edges, removing all burrs and sharp edges generated by stamping and cutting in one step, resulting in consistent product quality.

[0022] A further provision of the present invention is that the protective structure includes a protective plate disposed below the deburring machine, the protective plate having an opening for the polishing head to be removed, the lower end of the deburring machine being fixedly fitted with four uprights slidably connected to the protective plate and a plurality of return springs abutting against it, and the lower end of the uprights being fixedly fitted with baffles.

[0023] By adopting the above technical solution, the protective plate forms a physical isolation zone, effectively preventing the splashing of grinding debris. The return spring and the upright constitute a floating pressure mechanism. When the polishing head contacts the edge of the workpiece to deburr, the protective plate can float appropriately with the change of cutting force, which can maintain the blocking effect on debris and avoid excessive pressure on the workpiece to cause deformation, thus realizing a flexible and adaptive pressure polishing process.

[0024] A further embodiment of the present invention is that the feeding mechanism includes a connecting frame fixed to the front side of the machine body, a second electric push rod is mounted on the connecting frame, a rectangular frame is mounted on the output end of the second electric push rod, two symmetrically arranged movable arms are slidably arranged on the rectangular frame, a second suction cup is mounted on the end of the movable arm, and a third electric push rod for adjusting the distance between the two movable arms is mounted between them.

[0025] By adopting the above technical solution, the processed aluminum cap is automatically gripped and transferred by the unloading mechanism. The distance between the two moving arms can be adjusted by the third electric push rod to adapt to the gripping width of aluminum caps of different specifications. The second suction cup adopts a non-contact gripping method, which does not damage the polished surface of the aluminum cap. The second electric push rod and the rectangular frame work together to realize a multi-degree-of-freedom gripping-lifting-transferring-release process.

[0026] A further feature of the present invention is that a guide plate is fixedly installed inside the rectangular frame, and the guide plate passes through the two movable arms and is slidably connected to them.

[0027] By adopting the above technical solution, the guide plate provides rigid guidance for the relative sliding of the two moving arms, ensuring that they always maintain parallel movement when adjusting the spacing, thereby ensuring that the two second suction cups can be accurately and stably aligned with the designated suction position of the aluminum cap, improving the success rate and reliability of gripping.

[0028] The beneficial effects of this invention are:

[0029] 1. The three core processes of aluminum cladding head stamping, slitting and burr removal are organically integrated into one machine, and equipped with automatic feeding, precise positioning and unloading systems, realizing full automation from aluminum sheet loading to finished aluminum cladding head unloading, greatly reducing manual intervention and handling times, and significantly improving production efficiency;

[0030] 2. The precise adjustment structure driven by the lead screw guide ensures the accuracy of the movement and positioning of the lower mold base carrying the workpiece between each station. The use of a unified clamping and positioning reference avoids the cumulative error caused by multiple clamping, ensuring the consistency and stability of product dimensions. In particular, the deburring design that combines protection and elastic structure realizes automated, efficient and non-damaging edge processing of the workpiece, with stable quality, which is superior to traditional manual grinding.

[0031] 3. The automatic loading and unloading system, integrated deburring mechanism, and automatic demolding structure significantly reduce the risk of operators coming into contact with high-speed, sharp, and dangerous parts. The protective structure effectively isolates cutting and polishing debris, improves the working environment, and enhances production safety. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an overall structural diagram of a stamping, trimming, and deburring device for aluminum toe caps of work shoes according to the present invention.

[0034] Figure 2 This is the present invention. Figure 1 Structural diagram of a medium stamping forming machine.

[0035] Figure 3 This is the present invention. Figure 2 Internal structure diagram of the upper and middle mold.

[0036] Figure 4 This is the present invention. Figure 1 Structural diagram of a splitting and slicing machine.

[0037] Figure 5 This is the present invention. Figure 1 Structural diagram of the deburring mechanism.

[0038] Figure 6 This is the present invention. Figure 1 Structural diagram of the automatic feeding mechanism.

[0039] Figure 7 This is the present invention. Figure 6 Structural diagram of the telescopic feeding platform.

[0040] Figure 8 This is the present invention. Figure 6 Structural diagram of the mid-position structure.

[0041] Figure 9 This is the present invention. Figure 8 Internal structure diagram of the mobile frame.

[0042] Figure 10 This is the present invention. Figure 6 Structural diagram of the feeding mechanism.

[0043] In the diagram, 1. Machine body; 2. Stamping machine; 21. Upper die; 22. Push plate; 23. First spring; 3. Slitting machine; 31. Slitting blade; 4. Deburring mechanism; 41. Deburring machine; 42. Polishing head; 43. Protective plate; 44. Upright pole; 45. Return spring; 5. Automatic feeding mechanism; 51. Support; 52. Linear electric guide rail; 53. Sliding plate; 54. First electric push rod; 55. First suction cup; 6. Unloading mechanism; 61. Connecting frame; 62. Second electric... 63. Push rod; 64. Rectangular frame; 65. Moving arm; 66. Second suction cup; 67. Third electric push rod; 68. Guide plate; 7. Lower mold base; 89. Adjustment structure; 80. First motor; 81. One-way lead screw; 82. Guide rod; 83. Moving frame; 84. Second motor; 85. Two-way lead screw; 86. Fixed rod; 87. Moving plate; 88. Pressing plate; 99. Telescopic feeding table; 90. Rectangular plate; 91. Column; 92. Fixed plate; 93. Retaining ring; 94. Second spring. Detailed Implementation

[0044] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0045] like Figures 1-10 As shown in the figure, this invention provides a stamping, trimming, and deburring device for aluminum toe caps on work shoes. It mainly includes a machine body 1, and a stamping forming machine 2, a slitting machine 3, and a deburring mechanism 4 arranged sequentially from left to right along its length. Furthermore, the device is equipped with an automatic feeding mechanism 5, an unloading mechanism 6, and a core circulation system comprising a lower die base 7 and an adjusting structure 8 that drives its sliding.

[0046] The automatic feeding mechanism 5 includes a bracket 51 fixed to one side of the machine body 1. A linear electric guide rail 52 is installed at the upper end of the bracket 51. A sliding plate 53 is installed at the output end of the linear electric guide rail 52. A first electric push rod 54 is installed at the other end of the sliding plate 53. A first suction cup 55 is installed at the output end of the first electric push rod 54. The telescopic feeding table 9 includes a rectangular plate 91 located directly below the upper mold 21. A circular hole is provided on the rectangular plate 91 for the lower mold base 7 to pass through. Four columns 92 are fixedly installed at the bottom of the rectangular plate 91. A fixing plate 93 that is slidably connected to the columns 92 is installed inside the machine body 1. A retaining ring 94 is installed on the column 92. A second spring 95 abuts between the retaining ring 94 and the fixing plate 93.

[0047] First, the automatic feeding mechanism 5 is activated. The linear electric guide rail 52 on the bracket 51 drives the sliding plate 53 to move horizontally above the stack of raw aluminum plates. The first electric push rod 54 extends, driving the first suction cup 55 to descend and pick up an aluminum plate. Then, the first suction cup 55 lifts the aluminum plate, and the linear electric guide rail 52 accurately transports it to the top of the stamping station. The first electric push rod 54 extends again and places the aluminum plate on the telescopic feeding table 9, which has been reset to its initial position. At this time, the position of the aluminum plate has been initially aligned.

[0048] The lower end of the stamping forming machine 2 is equipped with an upper die 21 that is adapted to the lower die base 7. A push plate 22 and a plurality of first springs 23 connecting the push plate 22 are slidably arranged inside the upper die 21. The adjustment structure 8 includes a first motor 81 installed on one side of the machine body 1. A one-way lead screw 82 is installed on the output end of the first motor 81. A guide rod 83 is installed on the machine body 1 parallel to one side of the one-way lead screw 82. A movable frame 84 is fixedly installed at the bottom of the lower die base 7, which is threadedly connected to the one-way lead screw 82 and slidably connected to the guide rod 83. A limiting component for fixing the forming die material is provided on the movable frame 84.

[0049] After the material is fed, the adjustment structure 8 starts to work. The first motor 81 drives the one-way lead screw 82 to rotate, which drives the lower die seat 7 on the moving frame 84 to slide precisely to the left, so that it accurately enters the circular hole under the telescopic feeding table 9. At this time, the upper die 21 of the stamping forming machine 2 moves down and cooperates with the lower die seat 7 to stamp the aluminum plate, forming a bowl-shaped aluminum cladding blank in one go. After the stamping is completed, the upper die 21 returns, and the push plate 22 inside it automatically pushes out the blank that may be attached to the upper die under the elastic force of several first springs 23 and sticks it tightly to the surface of the lower die seat 7, completing the interference-free demolding.

[0050] The limiting component includes a second motor 85 installed on one side of the movable frame 84. A bidirectional lead screw 86 is installed on the output end of the second motor 85. Two fixed rods 87 are installed inside the movable frame 84. Two movable plates 88 that are slidably connected to the fixed rods 87 are symmetrically installed on the bidirectional lead screw 86. A clamping plate 89 is fixedly installed on the upper end of the movable plate 88.

[0051] After stamping, the semi-finished product is fixed on the mold base. At this time, the limiting component on the moving frame 84 is activated, the second motor 85 is started, and the bidirectional lead screw 86 is driven to rotate, which drives the two moving plates 88 to move inward synchronously along the fixed rod 87 until the clamping plate 89 at its upper end reliably clamps the stamped aluminum head blank on the lower mold base 7, preventing it from shifting during subsequent movement and processing.

[0052] The slitting machine 3 has a slitting blade 31 installed at its lower end. The deburring mechanism 4 includes a deburring machine 41 mounted on the machine body 1. The bottom of the deburring machine 41 is fixedly equipped with a polishing head 42 and a protective structure.

[0053] After clamping is completed, the first motor 81 starts again, and moves the lower die base 7, which carries and holds the aluminum cladding blank, precisely laterally from the stamping station to below the slitting machine 3. The slitting machine 3 moves downward, and its slitting blade 31 evenly cuts the aluminum cladding blank into two halves. The adjustment structure 8 continues to operate, and transfers this semi-finished product to the next station - below the deburring mechanism 4.

[0054] The protective structure includes a protective plate 43 located below the deburring machine 41. The protective plate 43 has an opening for the polishing head 42 to be removed. The lower end of the deburring machine 41 is fixedly equipped with four uprights 44 that are slidably connected to the protective plate 43 and multiple return springs 45 that abut against it. The lower end of the uprights 44 is fixedly equipped with a baffle plate.

[0055] After the aluminum cap is cut and positioned, the deburring machine 41 moves downwards to make contact between the polishing head 42 and the edge of the workpiece, and starts polishing. During operation, the deburring machine 41 drives the connecting parts to press down as a whole, and the bottom surface of the protective plate 43 approaches the workpiece. The return spring 45 is partially compressed, forming a floating connection. This structure allows the protective plate 43 to always be close to the workpiece without applying excessive pressure, confining the splashed metal debris within the sealed space formed by the protective plate 43, the bottom surface of the deburring machine 41, and the surface of the workpiece. At the same time, it ensures flexible contact during polishing and avoids damage to the workpiece.

[0056] The unloading mechanism 6 includes a connecting frame 61 fixed to the front side of the machine body 1. A second electric push rod 62 is installed on the connecting frame 61. A rectangular frame 63 is installed on the output end of the second electric push rod 62. Two symmetrical moving arms 64 are slidably arranged on the rectangular frame 63. A second suction cup 65 is installed at the end of the moving arm 64. A third electric push rod 66 for adjusting the distance between the two moving arms 64 is installed between them. A guide plate 67 is fixed inside the rectangular frame 63. The guide plate 67 passes through the two moving arms 64 and is slidably connected to them.

[0057] After the deburring operation is completed, the clamping plate 89 of the limiting component is released, and the unloading mechanism 6 is activated. The second electric push rod 62 on its connecting frame 61 drives the rectangular frame 63 to move forward. The two moving arms 64 on the rectangular frame 63, whose spacing is controlled by the third electric push rod 66, extend under the precise guidance of the guide plate 67, so that the second suction cups 65 installed at their ends are precisely adsorbed on both sides of the finished aluminum head. Then, the suction cups adsorb the workpiece, the second electric push rod 62 is activated, and the finished product is smoothly removed from the lower mold base 7 and transferred to the finished product collection area or conveyor belt, completing a complete processing cycle.

[0058] The working principle of this invention can be summarized as follows: This device, through the integration of an integrated layout and a single-mold transfer model, uses the lower mold base 7 as the sole carrier for the aluminum plate from blank to finished product. Relying on a precise adjustment structure and electrical control system, it achieves fully automated, intelligent, and continuous operation from automatic feeding, stamping, automatic clamping, transfer trimming, and transfer deburring. Each step is interconnected, with a unique clamping and positioning reference, which not only significantly improves production efficiency but also fundamentally ensures processing accuracy and product consistency. Furthermore, through automated operation and safety protection design, it greatly reduces labor costs and safety risks.

Claims

1. A stamping, trimming, and deburring device for aluminum toe caps on work shoes, comprising a body (1), characterized in that: The machine body (1) is provided with a stamping forming machine (2), a slitting machine (3) and a deburring mechanism (4) from left to right. The machine body (1) is also provided with an automatic feeding mechanism (5), a feeding mechanism (6), a lower die base (7), an adjustment structure (8) for driving the lower die base (7) to slide left and right, and a telescopic feeding platform (9). The lower end of the stamping forming machine (2) is equipped with an upper die (21) that is compatible with the lower die base (7). The upper die (21) is slidably provided with a push plate (22) and a first spring (23) connecting the push plate (22).

2. The stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 1, characterized in that: The adjustment structure (8) includes a first motor (81) installed on one side of the machine body (1), a one-way screw (82) is installed on the output end of the first motor (81), a guide rod (83) is installed on the machine body (1) parallel to one side of the one-way screw (82), a movable frame (84) is fixedly installed at the bottom of the lower mold base (7) and threadedly connected to the one-way screw (82) and slidably connected to the guide rod (83), and a limiting component for fixing the molding die material is provided on the movable frame (84).

3. The stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 2, characterized in that: The limiting component includes a second motor (85) installed on one side of the movable frame (84), a bidirectional lead screw (86) installed on the output end of the second motor (85), two front and rear fixed rods (87) installed inside the movable frame (84), two movable plates (88) symmetrically installed on the bidirectional lead screw (86) and slidably connected to the fixed rods (87), and a clamping plate (89) fixedly installed on the upper end of the movable plate (88).

4. The stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 1, characterized in that: The telescopic feeding platform (9) includes a rectangular plate (91) located directly below the upper mold (21). The rectangular plate (91) has a circular hole for the lower mold base (7) to pass through. Four columns (92) are fixedly installed at the bottom of the rectangular plate (91). A fixing plate (93) that is slidably connected to the columns (92) is installed inside the machine body (1). A retaining ring (94) is installed on the column (92). A second spring (95) abuts between the retaining ring (94) and the fixing plate (93).

5. The stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 1, characterized in that: The automatic feeding mechanism (5) includes a bracket (51) fixed to one side of the machine body (1). A linear electric guide rail (52) is installed at the upper end of the bracket (51). A sliding plate (53) is installed at the output end of the linear electric guide rail (52). A first electric push rod (54) is installed at the other end of the sliding plate (53). A first suction cup (55) is installed at the output end of the first electric push rod (54).

6. The stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 1, characterized in that: The slitting machine (3) is equipped with a slitting blade (31) at its lower end. The deburring mechanism (4) includes a deburring machine (41) mounted on the machine body (1). The bottom of the deburring machine (41) is fixedly equipped with a polishing head (42) and a protective structure.

7. A stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 6, characterized in that: The protective structure includes a protective plate (43) disposed below the deburring machine (41), the protective plate (43) having an opening for the polishing head (42) to be removed, and four uprights (44) slidably connected to the protective plate (43) and multiple return springs (45) abutting against it fixedly mounted at the lower end of the deburring machine (41), and a baffle plate fixedly mounted at the lower end of the uprights (44).

8. A stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 7, characterized in that: The feeding mechanism (6) includes a connecting frame (61) fixed to the front side of the machine body (1), a second electric push rod (62) is installed on the connecting frame (61), a rectangular frame (63) is installed on the output end of the second electric push rod (62), two symmetrical moving arms (64) are slidably arranged on the rectangular frame (63), a second suction cup (65) is installed at the end of the moving arm (64), and a third electric push rod (66) for adjusting the distance between the two moving arms (64) is installed between them.

9. A stamping, trimming, and deburring device for aluminum toe caps of work shoes according to claim 8, characterized in that: The rectangular frame (63) is fixedly fitted with a guide plate (67), which passes through the two movable arms (64) and is slidably connected to them.

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