Shoe sole polishing method and device

Abstract

The present invention discloses a method for grinding soles, which is characterized in that: when grinding the soles, the soles are placed on a bottom support and pressed by a pressure plate, and at the same time, a first servo motor drives a supporting wheel to abut against the edge of the sole with a certain output torque. During the rotation of the soles, the edge contour of the soles causes the supporting wheel to move forward and backward in a straight line, prompting the motor shaft of the first servo motor to rotate. The angular velocity information of the first servo motor is converted into an electrical signal and sent to a controller. The controller controls the angular velocity of the motor shaft of the second servo motor. The second servo motor drives a grinding wheel seat to move forward and backward in a straight line, so that the grinding wheel installed on the grinding wheel seat contacts the edge of the sole to grind the sole. The present invention generates a grinding track for the sole by abutting the supporting wheel against the sole, and controls the operation of the grinding wheel in real time, thereby completing the grinding of the sole with a simple structure and high quality, overcoming the shortcomings of various traditional sole grinding methods. At the same time, the present invention provides a sole grinding device for implementing the above-mentioned grinding method.

Description

Technical Field

[0001] The invention relates to the technical field of shoe sole polishing, and in particular to a shoe sole polishing method and a shoe sole polishing device. Background Art

[0002] In the shoemaking industry, in order to ensure that the sole and the upper can be firmly bonded, almost all soles must be polished. At present, there are many methods that can be used to polish the soles, but all of them have disadvantages: 1. Manual polishing cannot guarantee the quality, the labor intensity is high, and it is easy to cause health damage; 2. The constant force cylinder drives the grinding wheel for polishing. In order to prevent the edge of the sole from being deformed by force, the sole needs to be supported by a sole template. The sole template must form an internal support for the sole, which requires the design of sole templates of different specifications and shapes for each size of sole. The sole templates are configured in large quantities, which causes inconvenience and waste in management; 3. A supporting wheel is arranged at the bottom of the grinding wheel. Since the supporting position of the supporting wheel cannot interfere with the grinding position of the grinding wheel on the sole, the supporting wheel can only support the sole support plate. This requires the sole support plate to be designed with different specifications and shapes for each different size of soles, like a sole template. A large number of sole support plates are configured, which causes inconvenience and waste in management; 4. A multi-axis robotic arm or servo motor is used to follow a preset program to follow the trajectory for grinding. Since the consistency of soles in different batches is poor and there will be differences in size, grinding according to a fixed trajectory cannot guarantee the consistency of the grinding amount each time, and some areas will be polished too much, while some areas will not be polished enough; 5. A visual device is used to detect the contour information of the sole to generate a grinding trajectory, which has a complex structure and high cost. Summary of the invention

[0003] Firstly, the present invention provides a sole grinding track generated by a wheel against a sole, and controls the operation of the grinding wheel in real time, thereby completing the sole grinding with high quality with a simple structure, overcoming the shortcomings of various traditional sole grinding methods, and adopting the following technical solutions:

[0004] The sole grinding method is characterized in that: when grinding the sole, the sole is placed on the bottom support and pressed by the pressure plate, and at the same time, a first servo motor drives a supporting wheel with a certain output torque, so that the supporting wheel and the edge of the sole are always against each other during the grinding process, and the sole rotates in a circle together with the bottom support and the pressure plate. During the rotation of the sole, the edge contour of the sole causes the supporting wheel to move forward and backward in a straight line, prompting the motor shaft of the first servo motor to rotate. During the rotation of the motor shaft of the first servo motor, the angular velocity information of its rotation is converted into an electrical signal and sent to a controller, the controller processes the above electrical signal, and then controls the angular velocity of the motor shaft of the second servo motor. The second servo motor drives the grinding wheel seat to move forward and backward in a straight line, so that the grinding wheel installed on the grinding wheel seat contacts the edge of the sole in a circumferential direction different from the supporting wheel. At the same time, the grinding wheel motor drives the grinding wheel to rotate rapidly to grind the sole.

[0005] The key innovation of the sole grinding method of the above technical scheme is that, first of all, the traditional supporting wheel is utilized, and the setting of the sole template is omitted; during the grinding work, the grinding wheel and the supporting wheel are staggered in the circumferential direction, and the sole only needs to be supported by a bottom support plate of ordinary shape. The first servo motor drives the supporting wheel with a smaller output torque to always press against the bottom edge of the sole during the grinding process. The bottom edge of the sole generally has a higher strength. Then, as the sole rotates circumferentially, the edge contour of the sole prompts the motor shaft of the first servo motor to rotate, and the edge contour information of the sole is accurately and instantly transmitted to the controller. The controller then controls the operation of the second servo motor to push the grinding wheel seat so that the grinding wheel contacts the edge of the sole to grind the sole, thereby completing the grinding of the sole with a simple structure and high quality, overcoming the shortcomings of various traditional sole grinding methods.

[0006] The present invention provides a sole polishing device for implementing the above polishing method, and the technical solution is:

[0007] The shoe sole grinding device is characterized in that it comprises a grinding wheel, a supporting wheel, a bottom support and a pressure plate, the bottom support is arranged to rotate, the rotation of the bottom support is driven by a rotating motor, the pressure plate is pushed up and down by a cylinder above the bottom support, the grinding wheel and the supporting wheel are arranged in different circumferential directions on the side of the support plate, the grinding wheel is rotatably installed on the grinding wheel seat, the rotation of the grinding wheel is driven by the grinding wheel motor, the grinding wheel seat makes a linear forward and backward motion close to or away from the center of the support plate, the linear forward and backward motion of the grinding wheel seat is driven by a second servo motor, the supporting wheel also makes a linear forward and backward motion close to or away from the center of the support plate, and the supporting wheel is connected to the first servo motor; during grinding work, the first servo motor drives the supporting wheel with a certain output torque, so that the supporting wheel and the edge of the sole are always against each other during the grinding process, the output of the first servo motor is connected to a controller, and the controller controls the second servo motor.

[0008] The supporting wheel is connected to the rack, the motor shaft of the first servo motor is equipped with a gear, and the gear and the rack are meshed with each other.

[0009] The grinding wheel seat is connected to the adjusting nut, the adjusting nut is threadedly connected to the adjusting screw rod, and the adjusting screw rod is connected to the motor shaft of the second servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention has the following accompanying drawings:

[0011] Figure 1 The structure of the shoe sole polishing device of the present invention is shown in FIG. Figure 1 ,

[0012] Figure 2 The structure of the shoe sole polishing device of the present invention is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0013] As shown in the figure, the shoe sole grinding device of the present invention comprises a grinding wheel 1, a supporting wheel 2, a bottom bracket 3 and a pressing plate 5. The bottom bracket 3 is arranged to rotate, and the rotation of the bottom bracket 3 is driven by a rotating motor 4. The pressing plate 5 is arranged to move up and down above the bottom bracket 3. The pressing plate 5 is rotatably connected to a push plate 6, and the push plate 6 is pushed by a cylinder 7 to move up and down. The grinding wheel 1 and the supporting wheel 2 are arranged on the side of the supporting plate 3 in different circumferential directions. The grinding wheel 1 is rotatably mounted on a grinding wheel seat 14, and the rotation of the grinding wheel 1 is driven by a grinding wheel motor 15. The grinding wheel seat 14 moves forward and backward in a straight line close to or away from the center of the supporting plate 3. The straight line movement of the grinding wheel seat 14 is driven by a second servo motor 13 The grinding wheel seat 14 is connected to the adjusting nut 11, the adjusting nut 11 is threadedly connected to the adjusting screw 12, and the adjusting screw 12 is connected to the motor shaft of the second servo motor 13; the supporting wheel 2 also makes a linear forward and backward motion close to or away from the center of the support plate 3, the supporting wheel 2 is connected to the rack 8, the motor shaft of the first servo motor 10 is installed with a gear 9, and the gear 9 and the rack 8 are meshed with each other; during the grinding work, the first servo motor 10 pushes the supporting wheel 2 with a certain output torque, so that the supporting wheel 2 and the bottom edge of the sole A are always against each other during the grinding process, and the output of the first servo motor 10 is connected to the controller, and the controller controls the second servo motor 13.

[0014] The above-mentioned sole grinding device performs the sole grinding work as follows: when grinding the sole, the sole A is placed on the bottom bracket 3 and pressed by the pressing plate 5, and at the same time, the first servo motor 10 drives the supporting wheel 2 with a certain output torque, so that the supporting wheel 2 and the bottom edge of the sole A always abut against each other during the grinding process; then, the rotary motor 4 drives the bottom bracket 3 to rotate, so that the sole A and the pressing plate 5 rotate in a circle with the bottom bracket 3. During the rotation of the sole A, the edge contour of the sole A causes the supporting wheel 2 to move forward and backward in a straight line, prompting the motor shaft of the first servo motor 10 to generate Rotation, when the motor shaft of the first servo motor 10 rotates, its angular velocity information is converted into an electrical signal and sent to the controller, the controller processes the above electrical signal, and then controls the angular velocity of the motor shaft of the second servo motor 13, the second servo motor 13 pushes the grinding wheel seat 14 to make a straight line forward and backward motion by adjusting the screw rod 12 and the nut 11, so that the grinding wheel 1 installed on the grinding wheel seat 14 contacts the edge of the sole A, and at the same time, the grinding wheel motor 15 drives the grinding wheel 1 to rotate rapidly to grind the sole A, and finally completes the sole grinding work.

Claims

1. A sole polishing method, characterized in that: When grinding the sole, the sole is placed on the bottom support and pressed by the pressure plate. At the same time, the first servo motor pushes the supporting wheel with a certain output torque, so that the supporting wheel and the edge of the sole are always against each other during the grinding process. The sole rotates in a circle together with the bottom support and the pressure plate. During the rotation of the sole, the edge contour of the sole causes the supporting wheel to move forward and backward in a straight line, prompting the motor shaft of the first servo motor to rotate. During the rotation of the motor shaft of the first servo motor, the angular velocity information of its rotation is converted into an electrical signal and sent to the controller. The controller processes the above electrical signal and then controls the angular velocity of the motor shaft of the second servo motor. The second servo motor pushes the grinding wheel seat to move forward and backward in a straight line, so that the grinding wheel installed on the grinding wheel seat contacts the edge of the sole in a circumferential direction different from the supporting wheel. At the same time, the grinding wheel motor drives the grinding wheel to rotate rapidly to grind the sole.

2. A sole polishing device, characterized in that: It includes a grinding wheel, a supporting wheel, a base and a pressure plate. The base is arranged to rotate, and the rotation of the base is driven by a rotating motor. The pressure plate is pushed up and down by a cylinder above the base. The grinding wheel and the supporting wheel are arranged on the side of the support plate in different circumferential directions. The grinding wheel is rotatably installed on the grinding wheel seat, and the rotation of the grinding wheel is driven by the grinding wheel motor. The grinding wheel seat makes a linear forward and backward motion close to or away from the center of the support plate. The linear forward and backward motion of the grinding wheel seat is driven by a second servo motor. The supporting wheel also makes a linear forward and backward motion close to or away from the center of the support plate, and the supporting wheel is connected to the first servo motor. During grinding work, the first servo motor pushes the supporting wheel with a certain output torque, so that the supporting wheel and the edge of the sole are always against each other during the grinding process. The output of the first servo motor is connected to a controller, and the controller controls the second servo motor.

3. The sole polishing device according to claim 2, characterized in that: The supporting wheel is connected to the rack, the motor shaft of the first servo motor is equipped with a gear, and the gear and the rack are meshed with each other.

4. The sole polishing device according to claim 2, characterized in that: The grinding wheel seat is connected to the adjusting nut, the adjusting nut is threadedly connected to the adjusting screw rod, and the adjusting screw rod is connected to the motor shaft of the second servo motor.

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