Safety shoe protection head multi-station processing device and processing method thereof

Abstract

The application discloses a multi-station processing device for safety shoes and a processing method thereof. The processing device comprises a rotating table, a feeding station, a marking station, a first trimming station, a second trimming station, a cleaning station and a blow-drying station which are arranged on the rotating table in a circumferential direction at intervals. Each station is provided with a fixing tool for fixing the safety head. The marking station is provided with a marking machine. The first trimming station is provided with a first trimming device for trimming the end face of the safety head. The second trimming station is provided with a turnover device and a second trimming device. The turnover device is used for synchronously turning over the fixing tool and the safety head fixed thereon so that the bottom of the safety head faces upward. The second trimming device is used for trimming the bottom of the safety head. The cleaning station is provided with a cleaning device for cleaning the trimmed safety head. The blow-drying station is provided with a blow-drying device for blow-drying the cleaned safety head.

Description

Technical Field

[0001] This invention relates to the field of footwear accessory processing equipment technology, specifically a multi-station processing device and method for protective toe caps on safety shoes. Background Technology

[0002] Safety shoes are personal protective equipment widely used in industrial production, construction, and other workplaces. The protective toe cap (commonly known as the steel toe cap) is the core protective component, protecting the wearer's toes from impact and crush injuries. The toe cap is typically made from cold-rolled steel sheet or carbon fiber resin composite material through stamping. The finished product often has burrs on the end face and sole, requiring further processing. The quality of this processing directly affects the protective performance of the safety shoes. Current processing of safety shoe protective toe caps mostly adopts a segmented, independent operation mode. This involves using multiple independent machines for marking, trimming, and cleaning to complete each process sequentially. Manual transfer of workpieces is required between processes, which is not only inefficient but also leads to problems such as workpiece positioning datum misalignment, decreased processing accuracy, and workpiece susceptibility to damage from impacts, affecting processing quality. Furthermore, existing protective toe cap fixing fixtures mostly use a single clamping structure, which is difficult to adapt to the curved surface positioning of the protective toe cap and cannot achieve workpiece flipping processing. Processing the protective toe cap foot requires disassembly and reassembly, further reducing processing efficiency. This makes it difficult to meet the needs of large-scale, high-precision, and automated processing of safety shoe protective toe caps. In addition, the equipment occupies a large area and production management is complex. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-station processing device for protective toe caps of work shoes, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-station processing device for protective toe caps of work shoes, comprising a rotary table and a loading station, a marking station, a first trimming station, a second trimming station, a cleaning station, and a drying station arranged circumferentially on the rotary table, wherein each station is provided with a fixing fixture for fixing the protective toe cap.

[0005] Each marking station is equipped with a marking machine.

[0006] The first trimming station is equipped with a first trimming device for trimming the end face of the protective head.

[0007] The second trimming station is equipped with a flipping device and a second trimming device. The flipping device is used to flip the fixed fixture and the protective head fixed thereon simultaneously so that the bottom of the protective head faces upward. The second trimming device is used to trim the bottom of the protective head.

[0008] The cleaning station is equipped with a corresponding cleaning device, which is used to clean the protective head after it has been repaired by the first repair device and the second repair device.

[0009] The drying station is equipped with a drying device, which is used to dry the cleaned protective head.

[0010] Furthermore, the fixing fixture includes a bracket and a fixing plate and a pressure plate mounted on the bracket. The fixing plate has a groove that matches the outer contour of the protective head. The pressure plate is vertically mounted above the fixing plate and is used to press down on the upper surface of the protective head.

[0011] Furthermore, the fixing plate includes at least two plates, which are arranged parallel to each other vertically.

[0012] Furthermore, the fixed fixture also includes a lifting mechanism for driving the pressure plate to rise and fall. The lifting mechanism includes a piston rod, a connecting rod, and a lever arm. The pressure plate is fixedly installed at one end of the lever arm. When the piston rod extends or retracts, it drives the lever arm to rotate through the connecting rod, thereby driving the pressure plate to rise and fall to press or release the protective head.

[0013] Furthermore, the marking station is also equipped with a push mechanism, which is used to press the inner arc surface of the protective head tightly against the fixed plate, and the pressure plate of the station remains in a raised state.

[0014] Furthermore, the flipping device includes a frame fixedly mounted on a rotating platform and a flipping drive mechanism mounted on the frame. The fixed fixture is rotatably mounted on the frame via a rotating shaft, and the flipping drive mechanism is connected to the rotating shaft to drive the fixed fixture to flip 180°.

[0015] Furthermore, the first trimming device is a disc cutter flattening mechanism or a belt grinding mechanism.

[0016] Furthermore, the second dressing device includes an XYZ three-axis moving platform and a milling cutter mounted on the XYZ three-axis moving platform.

[0017] Furthermore, the drying station is also equipped with a suction cup device and a sliding track. The suction cup device is used to attach the dried protective head to the sliding track and allow it to slide out.

[0018] A multi-station processing method for protective toe caps of work shoes, using the aforementioned processing device, includes: at the loading station, placing the protective toe cap to be processed on a fixed fixture; as the rotary table rotates, marking information is sprayed onto the upper surface of the protective toe cap using a marking machine at the marking station; at the first trimming station, the end face of the protective toe cap is trimmed using a first trimming device; at the second trimming station, the fixed fixture and the protective toe cap placed on it are flipped using a flipping device so that the bottom of the protective toe cap faces upwards; the bottom of the protective toe cap is trimmed using a second trimming device; after trimming, the protective toe cap is reset; at the cleaning station, the protective toe cap is cleaned using a cleaning device; at the drying station, the protective toe cap is dried using a drying device; and after drying, the protective toe cap is unloaded.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention integrates multiple processes such as feeding, marking, end face trimming, bottom trimming, cleaning, and drying into one machine through a rotary table. The protective head is clamped by a fixed fixture at the feeding station and then moves with the rotary table. Each station can process simultaneously without the need for manual transfer of workpieces. The operation is convenient and there is no need to re-clamp in the middle, avoiding positioning errors and collision damage caused by multiple clamping. It improves processing accuracy and processing efficiency and is suitable for mass production.

[0021] 2. After the end face is trimmed, the fixed fixture and the protective head are flipped together by the flipping device so that the bottom foot is facing upward, which makes it easy to trim the bottom foot. There is no need to clamp the workpiece again, which improves the convenience and efficiency of processing.

[0022] 3. The fixing fixture adopts a fixing method in which two parallel arc-shaped plates are arranged on the top and bottom and cooperate with the pressure plate. The structure of the fixing plate and the pressure plate is matched with the outer contour of the protective head to achieve precise curved surface positioning of the protective head; the pressure plate presses down to achieve axial locking, and the positioning is stable and reliable; the marking station adopts a push mechanism to press the protective head tightly against the arc-shaped plate while keeping the pressure plate raised, ensuring that the upper surface is unobstructed during marking.

[0023] 4. Each workstation can accommodate two protective heads on the left and right at the same time. The fixed fixture has a symmetrical structure on the left and right sides, which enables the synchronous processing of two workpieces and further improves the processing efficiency of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the protective head of the present invention;

[0025] Figure 2 This is a schematic diagram of the multi-station processing device for protective toe caps of work shoes according to the present invention;

[0026] Figure 3 This is a schematic diagram of the marking station in the multi-station processing device for protective toe caps of work shoes of the present invention;

[0027] Figure 4 This is a schematic diagram of the first trimming station in the multi-station processing device for protective toe caps of work shoes of the present invention;

[0028] Figure 5 This is a schematic diagram of the second trimming station in the multi-station processing device for protective toe caps of work shoes of the present invention;

[0029] Figure 6 This is a schematic diagram of the fixed fixture and flipping device in the multi-station processing device for protective toe caps of work shoes of the present invention;

[0030] Figure 7 This is a schematic diagram of the fixed fixture in the multi-station processing device for protective toe caps of work shoes of the present invention;

[0031] Figure 8 This is a schematic diagram of the first trimming station in the multi-station processing device for protective toe caps of work shoes according to Embodiment 2 of the present invention;

[0032] In the diagram, 100-protective head; 101-end face; 102-base; 1-rotary table; 2-loading station; 3-marking station; 31-marking machine; 32-pushing mechanism; 4-first trimming station; 41-first trimming device; 411-sand belt; 412-drive motor; 413-drive wheel; 414-passive wheel; 415-transverse motor; 416-slide rail; 417-disc cutter; 418-rotary cylinder; 5-second trimming station; 51-tilting device; 511-frame; 512-tilting drive mechanism. 513- Track groove; 52- Second trimming device; 521- X-axis moving platform; 522- Y-axis moving platform; 523- Z-axis moving platform; 524- Milling cutter; 6- Cleaning station; 7- Drying station; 72- Adsorption motor; 73- Slide rail; 8- Fixed fixture; 81- Bracket; 811- Pin; 82- Fixing plate; 821- Groove; 83- Pressure plate; 84- Piston rod; 85- Lever arm; 86- First connecting rod; 87- Second connecting rod; 88- Third connecting rod; 89- Intermediate connecting rod; 9- Dust collection bin. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] like Figure 1As shown, the protective head 100 is a hollow, curved structure that is narrow at the front and wide at the back, with an end face 101 and a base 102. It is typically made of cold-rolled steel sheet or carbon fiber resin composite material through stamping. Both the end face 101 and the base 102 have burrs after stamping and require further processing. Figures 2-7As shown, this embodiment provides a multi-station processing device for protective heads of work shoes, including a rotary table 1 and a loading station 2, a marking station 3, a first trimming station 4, a second trimming station 5, a cleaning station 6, and a drying station 7 arranged circumferentially on the rotary table 1. A frame is fixedly installed on the rotary table 1, and the rotary table 1 is driven by a servo motor. The servo motor is connected to a reducer, such as an RV reducer, and drives an indexing device, such as a cam divider, to achieve intermittent indexing rotation, ensuring synchronous and precise processing actions at each station. Each station is equipped with a fixing fixture 8 for fixing the protective head 100, and each station can simultaneously accommodate two protective heads 100, one on the left and one on the right. The fixed fixture 8 is configured with a symmetrical structure to enable simultaneous processing of the left and right protective heads 100. In this embodiment, the fixed fixture 8 includes a bracket 81, a fixed plate 82 mounted on the bracket 81, a pressure plate 83, and a lifting mechanism for driving the pressure plate 83 to rise and fall. The fixed plate 82 includes at least two plates, which are arranged parallel to each other vertically. The fixed plate 82 has a groove 821 that matches the outer contour of the protective head 100, enabling precise positioning of the curved surface of the protective head 100. The lower fixed plate 81 is used to support the protective head 100. After the protective head 100 is placed on the lower fixed plate 81, the outer contour of the protective head 100 is in close contact with the groove of the upper fixed plate 82. The groove 821 can be formed on the fixed plate 82 to correspond to the left and right protective heads 100. The two grooves 821 are symmetrical to achieve synchronous processing of the left and right protective heads 100. The pressure plate 83 is raised and lowered above the fixed plate 82 to press down on the upper surface of the protective head 100. The lifting mechanism includes a piston rod 84, a connecting rod, and a lever arm 85. The pressure plate 83 is fixedly installed on one end of the lever arm 85. When the piston rod 84 extends or retracts, it drives the lever arm 85 to rotate around the hinge point through the connecting rod, thereby driving the pressure plate 83 to rise or fall to press or release the protective head 100. In this embodiment, the connecting rod includes a first connecting rod 86, a second connecting rod 87, and a third connecting rod 88. The piston rod 84 is driven by a cylinder or hydraulic cylinder, which is fixed on the rotary table 1. The piston rod 84 can extend and retract in the vertical direction. The extension end of the piston rod 84 is hinged to one end of the intermediate connecting rod 89. The same end of the intermediate connecting rod 89 that is hinged to the piston rod 84 is also hinged to one end of the second connecting rod 87. The other end of the intermediate connecting rod 89 is hinged to one end of the third connecting rod 88. The other end of the second connecting rod 87 is hinged to one end of the first connecting rod 86. The other end of the first connecting rod 86 is hinged to the middle section of the lever arm 86. One end of the lever arm 86 is fixedly mounted with the pressure plate 83. The other end of the lever arm 86 is hinged to the other end of the third connecting rod 88. When the piston rod 84 extends and retracts, the first connecting rod 86, the second connecting rod 87, the third connecting rod 88 and the intermediate connecting rod 89 work together to drive the hinge point of the lever arm 86 to rotate, thereby driving the pressure plate 83 to rise and fall to press or release the protective head 100.

[0036] Sensors, such as photoelectric switches, can be installed on the loading station 2 to detect whether the protective head 100 is placed in place, so as to prevent missing parts from entering subsequent stations.

[0037] The marking station 3 is equipped with a marking machine 31 and a pushing mechanism 32. In this embodiment, the marking machine 31 is a laser marking machine, and the pushing mechanism 32 is a telescopic motor shaft used to press the inner arc surface of the protective head 100 against the fixed plate 82, and the pressure plate 83 of the station is kept in a raised state to ensure accurate marking positioning.

[0038] The first finishing station 4 is equipped with a first finishing device 41. The first finishing device 41 includes a belt grinding mechanism and a transverse mechanism for driving the belt grinding mechanism to move. The belt grinding mechanism includes a sanding belt 411, a drive motor 412, a drive wheel 413, and a driven wheel 414. The transverse mechanism includes a transverse motor 415, a slide rail 416, and a slider. The transverse motor 415 is mounted on the frame. The belt grinding mechanism is fixedly mounted on the slider. The slider is slidably disposed in the slide rail 416. The transverse motor 415 drives the slider and the belt grinding mechanism mounted on the slider to move. The drive motor 412 is mounted on the frame. The drive wheel 413 is connected to the output shaft of the drive motor 412. The sanding belt 411 is sleeved on the drive wheel 413 and the driven wheel 414. When the drive motor 412 rotates, it drives the sanding belt 411 to rotate, thus grinding and deburring the end face 101 of the protective head 100.

[0039] The second trimming station 5 is equipped with a flipping device 51 and a second trimming device 52. The flipping device 51 is used to simultaneously flip the fixed fixture 8 and the protective head 100 fixed thereon by 180°. It includes a frame 511 fixed on the rotary table 1 and a flipping drive mechanism 512 mounted on the frame 511. The fixed fixture 8 is rotatably mounted on the frame 511 via a rotating shaft. The flipping drive mechanism 512 is connected to the rotating shaft. The flipping drive mechanism 512 can be a flipping motor or a rotary cylinder. The flipping drive mechanism 512 drives the rotating shaft to rotate, thereby causing the fixed fixture 8 to flip 180° as a whole, so that the protective head 100's bottom foot 102 faces upwards during processing, without the need for disassembly and reassembly. The bracket 81 is provided with a pin 811. The frame 511 has a track groove 513. The track groove 513 is a semi-circular arc groove. The pin 811 passes through the track groove 513. 13. When the fixed fixture 8 rotates, it provides a motion trajectory for the pin 811 and limits its movement, causing the fixed fixture 8 and the protective head 100 fixed thereon to rotate 180°; the second trimming device 52 includes an XYZ three-axis moving platform and a milling cutter 524 mounted on the XYZ three-axis moving platform, used for precise trimming of the bottom foot 102 of the rotated protective head 100. The XYZ three-axis moving platform includes an X-axis moving platform 521, a Y-axis moving platform 522 and a Z-axis moving platform 523, wherein the X-axis moving platform 521 is mounted on the Y-axis moving platform 522, which is mounted on the Z-axis moving platform 523. The X-axis moving platform 521 includes a drive motor and a lead screw, which is a positive and negative thread lead screw. The positive and negative thread lead screw is fixed to the main body of the X-axis moving platform 521 by bearings. Two milling cutters 524 are provided. The two milling cutters 524 are respectively fixedly mounted on the positive and negative thread lead screw by two milling cutter mounting seats. The positive thread on one milling cutter mounting seat matches the positive thread on the positive and negative thread lead screw. The other milling cutter... The reverse thread of the mounting base matches the reverse thread on the lead screw, driving the motor to rotate, which in turn drives the lead screw to rotate. The forward and reverse threads on the lead screw simultaneously drive the two milling cutter mounting bases and the two milling cutters 524 to move, respectively adjusting the bases 102 of the left and right protective heads 100. During adjustment, the Z-axis moving platform 523 drives the milling cutter to descend, and the Y-axis moving platform 522 and the X-axis moving platform 521 run along the contour of the base 102. The travel trajectories of the two milling cutters 524 are completely symmetrical.

[0040] The first trimming station 4 and the second trimming station 5 are equipped with dust collection devices and dust collection bins 9 to collect the dust generated during processing in a timely manner and keep the equipment clean.

[0041] The cleaning station 6 is equipped with a corresponding cleaning device. The cleaning device 61 uses high-pressure spraying or ultrasonic cleaning to remove chips and burrs from the surface and crevices of the repaired protective head 100.

[0042] The drying station 7 is equipped with a drying device, which is a hot air drying mechanism. The drying station 7 is also equipped with a suction cup device and a sliding track 73. In this embodiment, the suction cup device includes a suction cup and a suction motor 72. The suction cup is fixedly mounted on the motor shaft of the suction motor 72. The suction motor 72 drives the suction cup to suction the dried protective head 100 onto the sliding track 73, and the head slides out automatically from the sliding track 73.

[0043] This embodiment also provides a multi-station processing method for protective heads of work shoes, using the aforementioned processing device. The method includes: at the loading station 2, placing the protective head 100 to be processed on the fixed fixture 8; as the rotary table 1 rotates, marking information is sprayed onto the upper surface of the protective head 100 by the marking machine 31 at the marking station 3; at the first trimming station 4, the end face 101 of the protective head 100 is trimmed by the first trimming device 41; at the second trimming station 5, the fixed fixture 8 and the protective head 100 placed thereon are flipped by the flipping device 51 so that the bottom foot 102 of the protective head 100 faces upward; the bottom foot 102 of the protective head 100 is trimmed by the second trimming device 52; after trimming, the protective head is reset; at the cleaning station 6, the protective head 100 is cleaned by the cleaning device; at the drying station 7, the protective head 100 is dried by the drying device; and after drying, the protective head is unloaded.

[0044] Specifically, the left and right protective heads 100 are manually or by a robotic arm placed into the groove 821 of the fixing plate 82 of the fixing fixture 8 at the loading station 2 and fit into the groove 821. At this time, the piston rod 84 remains retracted and the pressure plate 83 remains raised, thus completing the workpiece loading.

[0045] The rotary table 1 rotates in indexing mode under the drive of the cam divider, transferring the fixed fixture 8 and the protective head 100 fixed thereon to the marking station 3. At the marking station 3, the motor shaft of the push mechanism 32 extends, pressing the inner arc surface of the protective head 100 tightly against the fixed plate 82 to achieve radial positioning. The pressure plate 83 remains raised. Subsequently, the marking machine 31 starts, printing information such as model, production batch, and execution standard of the protective head 100 onto its upper surface. After marking is completed, the push mechanism 4 resets, and the push rod retracts.

[0046] The rotary table 1 continues to rotate in increments, and the protective head 100 moves to the first finishing station 4. The piston rod 84 extends, driving the lever arm 86 to rotate. Through the linkage of the first connecting rod 86, the second connecting rod 87, the third connecting rod 88, and the intermediate connecting rod 89, the hinge point of the lever arm 86 rotates, thereby driving the pressure plate 83 to press down and tighten the protective head 100, ensuring that the protective head 100 does not shift during the finishing process. The transverse motor 415 drives the slider and the sanding belt grinding mechanism mounted on the slider to move to a preset position, which is in close contact with the end face 101 of the protective head 100. Subsequently, the drive motor rotates, driving the sanding belt 411 to reciprocate, grinding and deburring the end face 101 of the protective head 100.

[0047] The protective head 100 is transferred to the second trimming station 5. The pressure plate 83 remains in a pressed state. The flip motor 512 drives the rotating shaft to rotate, causing the fixed fixture 8 and the protective head 100 to rotate 180° as a whole, so that the bottom foot 102 of the protective head 100 faces upward. The XYZ three-axis moving platform 521 drives the two milling cutters 524 to move along the contour of the bottom foot 102 to mill and trim the bottom foot 102 and remove burrs. After trimming, the flip motor 512 is started again, flipping the fixed fixture 8 and the protective head 100 back to their original positions.

[0048] The protective head 100 is transferred to the cleaning station 6, where the cleaned protective head 100 is cleaned by the cleaning device 61 to remove dust and debris generated during processing. The cleaning device 61 can be a spray cleaning device or an ultrasonic cleaning device. When a spray cleaning device is used, cleaning fluid is sprayed onto the surface of the protective head 100 through multiple nozzles to wash away dust and debris. When an ultrasonic cleaning device is used, the protective head 100 is immersed in the cleaning fluid, and deep cleaning is achieved through the cavitation effect of ultrasound. A splash guard can be installed at the cleaning station to prevent the cleaning fluid from splashing onto adjacent stations.

[0049] The protective head 100 is transferred to the drying station 7, where the drying device dries the protective head 100. The drying device is a hot air drying device that generates hot air through heating elements and a fan to dry the protective head 100. The drying temperature is controlled at 60-80℃, and the drying time is set according to the rotary table cycle, which can be set to 30-60 seconds. After drying, the adsorption motor 72 drives the suction cup to adsorb the dried protective head 100 onto the sliding track 73 and then release it. The protective head 100 slides out along the sliding track 73 and enters the collection container, completing the unloading.

[0050] The fixed fixture 8 continues to rotate with the rotary table 1 to the loading station 2 for the next cycle.

[0051] Example 2

[0052] The difference between this embodiment and Embodiment 1 is that: the pushing mechanism 32 uses an electric push rod instead of a telescopic motor shaft. The output end of the electric push rod is equipped with a pushing block that matches the inner arc surface of the protective head 100 to ensure the stability of the pushing and positioning. The front end of the pushing block is equipped with a soft top, such as polyurethane material, to avoid scratching the surface of the protective head 100. The first trimming device 41 uses a disc cutter flattening mechanism, such as a gantry frame. The disc cutter 417 is driven to rotate at high speed by a rotary cylinder. The rotary cylinder is installed on the gantry frame, or the rotary cylinder 418 is installed on the transverse movement mechanism of Embodiment 1. The disc cutter 417 is driven to rotate at high speed by the rotary cylinder 418. The high-speed rotation of the disc cutter 417 cuts the end face 101. To improve the trimming accuracy, a sanding area can be set on the disc cutter, for example... Diamond abrasive strips are evenly arranged along the circumference of the disc cutter to perform grinding while cutting, thereby improving the finishing accuracy of the end face 101. Alternatively, the belt grinding mechanism of Embodiment 1 can be set up again at the first finishing station 4 or the cleaning station 6. Through the combination structure of the rotating disc cutter and the belt grinding mechanism, the end face 101 is first roughly cut by the rotating disc cutter, and then finely ground by the belt grinding mechanism, thereby improving the finishing accuracy of the end face 101. A flipping device 51 can be set up at each station, and each station can be flipped according to actual needs. For example, at the cleaning station 6, the protective head 100 can be flipped by the flipping device 51 for more thorough cleaning. At the drying station 7, the protective head 100 can also be flipped by the flipping device 51 for more thorough drying. The remaining structure and working process are the same as in Embodiment 1.

[0053] This invention integrates multiple processes such as loading, marking, end face trimming, bottom trimming, cleaning, and drying into a single machine using a rotary table. The protective head, clamped by a fixed fixture at the loading station, rotates with the rotary table, allowing simultaneous processing at each station. This eliminates the need for manual workpiece transfer, simplifying operation and avoiding the need for re-clamping mid-process. It also avoids positioning errors and damage caused by multiple clamping operations, improving processing accuracy and efficiency, making it suitable for mass production. After end face trimming, a flipping device rotates the fixed fixture along with the protective head, ensuring the bottom faces upwards, facilitating bottom trimming without requiring secondary clamping of the workpiece. To improve processing convenience and efficiency, the fixed fixture uses two parallel arc-shaped plates that work in conjunction with a pressure plate. The grooves on the fixed plates match the outer contour of the protective head, achieving precise curved surface positioning of the protective head. The pressure plate presses downward to achieve axial locking, ensuring stable and reliable positioning. The marking station uses a push mechanism to press the protective head tightly against the arc-shaped plates while keeping the pressure plate raised, ensuring that the upper surface is unobstructed during marking. Each station can accommodate two protective heads simultaneously, and the fixed fixture has a symmetrical structure, enabling simultaneous processing of two workpieces and further improving equipment processing efficiency.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-station processing device for protective toe caps of work shoes, characterized in that: It includes a rotary table and a loading station, a marking station, a first trimming station, a second trimming station, a cleaning station, and a drying station arranged circumferentially on the rotary table. Each station is equipped with a fixing fixture for fixing the protective head. Each marking station is equipped with a marking machine. The first trimming station is equipped with a first trimming device for trimming the end face of the protective head. The second trimming station is equipped with a flipping device and a second trimming device. The flipping device is used to flip the fixed fixture and the protective head fixed thereon simultaneously so that the bottom of the protective head faces upward. The second trimming device is used to trim the bottom of the protective head. The cleaning station is equipped with a corresponding cleaning device, which is used to clean the protective head after it has been repaired by the first repair device and the second repair device. The drying station is equipped with a drying device, which is used to dry the cleaned protective head.

2. The multi-station processing device for protective toe caps of work shoes according to claim 1, characterized in that: The fixing fixture includes a fixing plate and a pressure plate. The fixing plate has a groove that matches the outer contour of the protective head. The pressure plate is raised and lowered above the fixing plate and is used to press down on the upper surface of the protective head.

3. The multi-station processing device for protective toe caps of work shoes according to claim 2, characterized in that: The fixing plate includes at least two plates, which are arranged parallel to each other vertically.

4. The multi-station processing device for protective toe caps of work shoes according to claim 2 or 3, characterized in that: The fixed fixture also includes a lifting mechanism for driving the pressure plate to rise and fall. The lifting mechanism includes a piston rod, a connecting rod, and a lever arm. The pressure plate is fixedly installed at one end of the lever arm. When the piston rod extends or retracts, it drives the lever arm to rotate through the connecting rod, thereby driving the pressure plate to rise and fall to press or release the protective head.

5. The multi-station processing device for protective toe caps of work shoes according to claim 2, characterized in that: The marking station is also equipped with a push mechanism, which is used to press the inner arc surface of the protective head tightly against the fixed plate, and the pressure plate of the station is kept in a raised state.

6. The multi-station processing device for protective toe caps of work shoes according to claim 1 or 2, characterized in that: The flipping device includes a frame fixedly mounted on a rotating platform and a flipping drive mechanism mounted on the frame. The fixed fixture is rotatably mounted on the frame via a rotating shaft, and the flipping drive mechanism is connected to the rotating shaft to drive the fixed fixture to flip 180°.

7. The multi-station processing device for protective toe caps of work shoes according to claim 1, characterized in that: The first trimming device is a disc cutter flattening mechanism or a belt grinding mechanism.

8. The multi-station processing device for protective toe caps of work shoes according to claim 1, characterized in that: The second dressing device includes an XYZ three-axis moving platform and a milling cutter mounted on the XYZ three-axis moving platform.

9. The multi-station processing device for protective toe caps of work shoes according to claim 1, characterized in that: The drying station is also equipped with a suction cup device and a sliding track. The suction cup device is used to attach the dried protective head to the sliding track and slide it out.

10. A multi-station processing method for the protective toe cap of work shoes, characterized in that, The protective head of the safety shoe is processed using the multi-station processing device according to any one of claims 1 to 9. The method includes: at the loading station, placing the protective head to be processed on a fixed fixture; as the rotary table rotates, printing information on the upper surface of the protective head using a marking machine at the marking station; at the first trimming station, trimming the end face of the protective head using a first trimming device; at the second trimming station, flipping the fixed fixture and the protective head placed thereon using a flipping device so that the bottom of the protective head faces upward; trimming the bottom of the protective head using a second trimming device; resetting after trimming; cleaning the protective head using a cleaning device at the cleaning station; drying the protective head using a drying device at the drying station; and unloading the protective head after drying.

Images