Automatic rotating and clamping sole structure for polishing sole

Abstract

The utility model discloses a kind of shoe sole polishing automatic rotation and clamping shoe sole structure, it includes shoe sole clamping clamp, shoe sole clamp air cylinder, shoe sole rotating mechanism, lifting slide block, lifting rack, lifting gear, lifting motor and lifting guide rail.The present application is realized by servo motor driving bevel gear and rack system to realize the function of 360 degrees rotation of clamp opening and closing, combined with cylinder auxiliary power to adapt to different size shoe sole;Rotating mechanism adopts gear set of optimized transmission ratio to ensure smooth rotation;Lifting system realizes accurate lifting by rack and pinion cooperation.Overall, it is designed with multiple stations, supports continuous processing and automatic transmission.The present application can significantly improve the polishing efficiency of shoe sole, stability and adaptability, meet modern production needs.

Description

Technical Field

[0001] This utility model relates to the field of automated equipment technology for footwear manufacturing, and in particular to an automatic rotating and clamping structure for grinding and polishing shoe soles. Background Technology

[0002] In footwear manufacturing, sole grinding and polishing are crucial processes that directly impact the appearance and performance of the finished shoes. Traditional sole grinding and polishing operations typically rely on manual labor or semi-automatic equipment. While these methods meet basic processing requirements, they suffer from significant shortcomings in efficiency, precision, and consistency. Manual operation is susceptible to variations in worker skill level and fatigue, leading to inconsistent processing quality. Existing semi-automatic equipment often employs fixed clamping methods, lacking flexibility and failing to achieve uniform grinding and polishing of the sole from all angles, which is particularly limiting when dealing with complex curved sole surfaces.

[0003] Furthermore, existing technologies for clamping and rotating shoe soles employ relatively simple designs, typically enabling movement in only one direction, which fails to meet the demands of modern footwear manufacturing for efficient and automated production. For instance, some equipment uses cylinders to drive clamps for sole fixation, but its clamping force and position adjustment capabilities are limited, easily causing damage to the sole surface or inaccurate positioning. Simultaneously, the lifting and rotating mechanisms in existing equipment often rely on independent power systems, resulting in complex structures and poor coordination, leading to low overall equipment operating efficiency and high maintenance costs.

[0004] To address the aforementioned issues, there is an urgent need for an integrated structure capable of automatically clamping, precisely rotating, and efficiently grinding and polishing shoe soles, overcoming the shortcomings of traditional technologies. This structure should possess high-precision control capabilities, enabling 360-degree rotation of the shoe sole during the grinding process. Stable clamping and lifting functions should ensure the continuity and consistency of the processing, thereby improving production efficiency and product quality, and meeting the demands of the modern footwear industry for automation and intelligence. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic rotating and clamping structure for grinding and polishing shoe soles, which solves the problems mentioned in the background art.

[0006] This invention is implemented as follows: an automatic rotating and clamping structure for shoe sole grinding and polishing includes a shoe sole clamping clamp, a shoe sole clamp cylinder, a shoe sole rotation mechanism, a lifting slider, a lifting rack, a lifting gear, a lifting motor, and a lifting guide rail. The shoe sole clamping clamp uses a servo motor to drive a helical gear and rack system to achieve the clamp's opening and closing action and 360-degree rotation of the pressure film. Furthermore, the servo motor transmits power through the meshing of the helical gear and rack, causing the rack to move along the linear guide rail, thereby controlling the clamp's opening and closing angle. When the shoe sole enters the processing area, the clamp closes through the linear movement of the rack to fix the shoe sole, and the continuous rotation of the servo motor drives the shoe sole to complete a 360-degree rotation, ensuring uniform force on the sole surface. Specifically, the clamp's opening and closing action is assisted by the shoe sole clamp cylinder, whose piston rod is connected to the clamp through a linkage mechanism, achieving a rapid-response opening and closing operation. The cylinder's stroke and pressure are precisely calculated to adapt to shoe soles of different sizes and materials.

[0007] Furthermore, the sole rotation mechanism is responsible for the rotational movement of the sole during the grinding process. Its core components include a motor, a gear set, and a drive shaft. The motor transmits rotational power to the drive shaft via the gear set, and the drive shaft is connected to the sole clamping clamp, thereby driving the sole to rotate smoothly. In particular, the gear set's transmission ratio is optimized so that the rotational speed can be adjusted according to the sole material and processing requirements. Simultaneously, the rotating mechanism uses high-precision ball bearings to reduce friction and improve rotational stability.

[0008] The lifting slider is mounted on the lifting guide rail and works in conjunction with the lifting rack to achieve the vertical movement of the robotic arm. Furthermore, the lifting rack drives the slider along the guide rail via linear motion. The rack's tooth pitch matches the module of the lifting gear, ensuring synchronization and precision during transmission. Notably, the bottom of the lifting slider is equipped with a ball bearing bushing. This bushing contacts the guide rail surface, replacing sliding friction with rolling friction, significantly reducing motion resistance and improving smoothness. In addition, the slider's installation position is calibrated to ensure it remains horizontal during lifting, preventing deviations from affecting machining accuracy.

[0009] The lifting gear connects the lifting motor and the lifting rack, converting the motor's rotational motion into the rack's linear motion. Furthermore, the lifting gear's teeth feature an involute design and undergo surface hardening treatment to improve wear resistance and service life. Specifically, the gear ratio is calculated to match the lifting motor's output speed with the rack's linear movement speed, meeting the robot's processing needs at different heights. The lifting motor, as the power source, controls the robot's ascent and descent through forward and reverse rotation. The motor's rated power and speed are selected based on actual load requirements to ensure smooth lifting and rapid response.

[0010] The lifting guide rail is located at the bottom of the robotic arm device, supporting the vertical movement of the entire robotic arm. Furthermore, the guide rail has a rectangular cross-section and its surface is hardened to improve hardness and wear resistance. Specifically, dust covers are provided on both sides of the guide rail to prevent dust and debris from entering the guide rail and affecting its sliding performance. The installation position of the guide rail is precisely measured to ensure its parallelism with the lifting rack, thereby reducing vibration and noise during movement.

[0011] The overall layout employs a multi-station design, with multiple robotic arms distributed across the worktable, supporting simultaneous operation. Furthermore, the worktable is equipped with multiple fixed points and guide grooves for precise positioning and transfer of the shoe soles. Notably, the robotic arms coordinate their operation through a control system, ensuring continuous processing and automated transfer of shoe soles between different workstations. The control system utilizes PLC programming and employs sensors to monitor the position and status of the robotic arms in real time, achieving precise control.

[0012] The technical solution of this utility model solves the problems existing in the prior art through the above-described specific implementation. First, the multi-station design supports continuous processing of shoe soles, significantly improving production efficiency. Second, the precise mechanical design and control system ensure stable transmission and uniform force distribution of the shoe sole during processing. Furthermore, the combination of the clamp cylinder and the servo motor allows the device to adapt to shoe soles of different sizes and materials, exhibiting strong versatility. Finally, the automatic clamping, rotation, and lifting functions of the robotic arm reduce manual intervention and lower labor intensity. In summary, this utility model provides a highly efficient, stable, and flexible automatic rotating and clamping shoe sole structure for shoe sole grinding and polishing, which can be widely applied in the footwear manufacturing industry and meet the high requirements of modern production. Attached Figure Description

[0013] Figure 1 A partial schematic diagram of an automatic rotating and clamping sole structure for sole grinding and polishing;

[0014] Figure 2 A schematic diagram of an automatic rotating and clamping sole structure for sole grinding and polishing;

[0015] Figure 3 This is a top view schematic diagram of an automatic rotating and clamping sole structure for sole grinding and polishing.

[0016] The attached figures are labeled as follows:

[0017] 1. Shoe sole clamp; 2. Shoe sole clamp cylinder; 3. Shoe sole rotation mechanism; 4. Lifting slider; 5. Lifting rack; 6. Lifting gear; 7. Lifting guide rail; 8. Lifting motor. Detailed Implementation

[0018] This utility model relates to an automatic rotating and clamping structure for shoe sole grinding and polishing, and its specific implementation is described in detail with reference to the accompanying drawings. Figures 1 to 3 In this embodiment, the structure includes a shoe sole clamping clamp 1, a shoe sole clamping cylinder 2, a shoe sole rotation mechanism 3, a lifting slider 4, a lifting rack 5, a lifting gear 6, a lifting motor 7, and a lifting guide rail 8. These components work together through a precise mechanical transmission and control system to complete the functions of clamping, rotating, conveying, and lifting the shoe sole during the processing.

[0019] First, the specific implementation of the shoe sole clamping clamp 1 is described. The shoe sole clamping clamp 1 consists of a servo motor-driven helical gear and rack system. The servo motor is mounted on the top of the robotic arm device, and the helical gear and rack mesh to transmit power. When the rack moves along the linear guide rail, it drives the clamp to open and close, thereby fixing and releasing the shoe sole. When the shoe sole enters the processing area, a signal from the control system triggers the servo motor to start. The servo motor converts the rotational motion into the linear motion of the rack through the helical gear, causing the clamp to close and firmly hold the shoe sole. Simultaneously, the servo motor continues to operate, driving the clamp and shoe sole to complete a 360-degree rotation, ensuring uniform force on the shoe sole surface. During this process, the rack does not rotate, only moving linearly along the guide rail, avoiding positioning errors caused by rack rotation. The opening and closing action of the clamp is also assisted by the shoe sole clamp cylinder 2. The piston rod of cylinder 2 is connected to the clamp through a linkage mechanism. The stroke and pressure of the cylinder are precisely calculated to adapt to shoe soles of different sizes and materials, ensuring stable clamping force without damaging the shoe sole surface.

[0020] Next, the working principle of the sole rotation mechanism 3 will be explained. The core components of the sole rotation mechanism 3 include a motor, a gear set, and a drive shaft. The motor transmits rotational power to the drive shaft via the gear set. The drive shaft is connected to the sole clamping clamp 1, thereby driving the sole to rotate smoothly. The gear set is designed with an optimized transmission ratio, allowing the rotation speed to be adjusted according to the sole material and processing requirements. For example, when processing harder soles, the rotation speed can be reduced to improve grinding accuracy; while when processing softer soles, the rotation speed can be appropriately increased to improve processing efficiency. Furthermore, the rotating mechanism uses high-precision ball bearings, which not only reduces friction but also significantly improves rotational stability, ensuring that the sole does not vibrate or shift during high-speed rotation.

[0021] The lifting slider 4 and the lifting rack 5 work together to enable the robot's vertical movement. The lifting slider 4 is mounted on the lifting guide rail 8, and the lifting rack 5 drives the slider to move along the guide rail via linear motion. The tooth pitch of the rack is strictly matched with the module of the lifting gear 6 to ensure synchronization and accuracy during transmission. A ball bearing bush is provided at the bottom of the lifting slider 4, which contacts the guide rail surface, replacing sliding friction with rolling friction, significantly reducing motion resistance and improving smoothness. Simultaneously, the slider's installation position is calibrated to ensure it remains horizontal during lifting, preventing deviation from affecting machining accuracy. The lifting gear 6 connects the lifting motor 7 and the lifting rack 5, converting the motor's rotational motion into the rack's linear motion. The lifting gear 6 uses an involute tooth design, and the tooth surface is hardened, which not only improves wear resistance but also extends service life. The gear ratio is calculated to match the output speed of the lifting motor 7 with the linear movement speed of the rack, meeting the robot's needs for machining at different heights.

[0022] The lifting motor 7 serves as the power source, controlling the rise and fall of the robotic arm through forward and reverse rotation. The motor's rated power and speed are selected based on actual load requirements to ensure smoothness and responsiveness during the lifting process. The lifting guide rail 8 is located at the bottom of the robotic arm device, supporting the vertical movement of the entire robotic arm. The guide rail has a rectangular cross-section and its surface is hardened to improve hardness and wear resistance. Dust covers are installed on both sides of the guide rail to prevent dust and debris from entering the guide rail and affecting its sliding performance. The installation position of the guide rail is precisely measured to ensure its parallelism with the lifting rack 5, thereby reducing vibration and noise during movement.

[0023] The overall layout employs a multi-station design, with multiple robotic arms distributed across the worktable, supporting simultaneous operation. The worktable features multiple fixed points and guide grooves for precise positioning and transfer of the shoe soles. The robotic arms coordinate their operation through a control system, ensuring continuous processing and automated transfer of shoe soles between different workstations. The control system utilizes PLC programming and uses sensors to monitor the position and status of the robotic arms in real time, achieving precise control. For example, when a shoe sole is transferred from one workstation to the next, the sensor detects the change in position and sends a signal to the control system. The control system then adjusts the robotic arm's movement sequence and parameters according to a preset program, ensuring the shoe sole accurately enters the next workstation for processing.

[0024] The practical application scenario of this utility model is as follows: In a footwear manufacturing factory, after the soles are initially formed, they need to be ground and polished. The operator places the sole on a fixed point on the workbench. After the control system is activated, the robotic arm begins operation. First, the lifting motor 7 drives the lifting gear 6 to rotate, causing the lifting rack 5 and lifting slider 4 to move upwards along the lifting guide rail 8, bringing the sole clamping clamp 1 close to the sole. Then, the servo motor starts, the rack moves along the guide rail, causing the clamp to close and tighten the sole. The sole clamp cylinder 2 provides auxiliary power to ensure moderate and stable clamping force. Next, the servo motor continues to operate, causing the sole to complete a 360-degree rotation. The motor of the sole rotation mechanism 3 transmits the rotational power to the drive shaft through a gear set, ensuring the sole maintains stable rotation during the grinding process. After grinding is completed, the servo motor stops, the clamp releases the sole, and the lifting motor 7 drives the lifting gear 6 to rotate in the opposite direction, causing the robotic arm to descend and transport the sole to the next workstation. The entire process is monitored in real time by the control system to ensure coordinated operation between the robotic arms and achieve efficient and stable automated processing.

[0025] In summary, this utility model solves the problems existing in the prior art through the above-described specific embodiments. The multi-station design supports continuous processing of shoe soles, significantly improving production efficiency. Precise mechanical design and control system ensure stable transmission and uniform force distribution of the shoe sole during processing. The combination of clamp cylinders and servo motors allows the device to adapt to shoe soles of different sizes and materials, exhibiting strong versatility. The automatic clamping, rotation, and lifting functions of the robotic arm reduce manual intervention and lower labor intensity. The automatic rotating and clamping shoe sole structure for shoe sole grinding and polishing provided by this utility model can be widely applied in the footwear manufacturing industry, meeting the high requirements of modern production.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic rotating and clamping structure for shoe sole grinding and polishing, comprising a shoe sole clamping clamp (1), a shoe sole clamping cylinder (2), a shoe sole rotating mechanism (3), a lifting slider (4), a lifting rack (5), a lifting gear (6), a lifting motor (7), and a lifting guide rail (8), characterized in that, The shoe sole clamp (1) is driven by a servo motor to realize the opening and closing action and the 360-degree rotation function of the pressure film. The shoe sole rotation mechanism (3) drives the shoe sole to rotate smoothly through the motor, gear set and transmission shaft. The lifting slider (4) is installed on the lifting guide rail (8) and works with the lifting rack (5) to realize the up and down movement of the robot.

2. The automatic rotating and clamping sole structure for sole grinding and polishing as described in claim 1, characterized in that, The opening and closing action of the shoe sole clamp (1) is assisted by the shoe sole clamp cylinder (2), and the piston rod of the cylinder is connected to the clamp through a linkage mechanism.

3. The automatic rotating and clamping sole structure for sole grinding and polishing as described in claim 2, characterized in that, The stroke and pressure of the shoe sole clamp cylinder (2) are precisely calculated to fit shoe soles of different sizes and materials.

4. The automatic rotating and clamping sole structure for sole grinding and polishing as described in claim 1, characterized in that, The gear ratio of the gear set in the sole rotation mechanism (3) has been optimized to adjust the rotation speed.

5. The automatic rotating and clamping sole structure for sole grinding and polishing as described in claim 4, characterized in that, The bearings of the shoe sole rotation mechanism (3) are high-precision ball bearings to reduce friction and improve rotational stability.

6. The automatic rotating and clamping sole structure for sole grinding and polishing as described in claim 1, characterized in that, The bottom of the lifting slider (4) is provided with a ball bushing to reduce motion resistance by using rolling friction instead of sliding friction.

7. The automatic rotating and clamping sole structure for sole grinding and polishing as described in claim 1, characterized in that, The lifting guide rail (8) has a rectangular cross-section and its surface is hardened to improve hardness and wear resistance.

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