An automatic shoe slot line drawing device and method

Abstract

The present application relates to a kind of shoe groove automatic line drawing device and method, to solve the problem of low efficiency, poor quality of traditional manual shoe groove line drawing.The device includes conveying device, rotating mechanism, line drawing part and control part.Conveying device is equipped with several conveying platforms and the conveying power part of driving its linear motion;Rotating mechanism is installed on conveying platform, and the rotating shaft is horizontally arranged, and the shoe body to be drawn is installed on the rotating shaft;Line drawing part includes mounting bracket fixed on rack and line drawing rod vertically and horizontally arranged to slide up and down, line drawing rod is hollow filled with line drawing ink, and bottom is provided with line drawing head, line drawing head is aligned with shoe body shoe groove, when rotating mechanism drives shoe body to rotate, line drawing head draws line along shoe groove;Control part is arranged on rotating mechanism and mounting bracket, and is electrically connected with conveying power part and rotating mechanism, for controlling its work.The present application realizes automatic continuous line drawing through control part, improves production efficiency and line drawing quality, and the structure is simple, easy to operate.

Description

Technical Field

[0001] This invention relates to the field of apparel production technology, and in particular to an automatic shoe groove marking device and method. Background Technology

[0002] In the footwear manufacturing industry, marking the shoe grooves is a crucial process, directly impacting the shoe's appearance and perceived quality. Traditional shoe groove marking relies primarily on manual labor, with workers using marking tools to draw lines along the shoe grooves one by one. However, this manual method has several drawbacks.

[0003] On the one hand, manual operation is inefficient and cannot meet the needs of large-scale production. With the continuous expansion of the footwear market and the increasing number of production orders, the speed of manual line drawing cannot keep up with the production pace, leading to longer production cycles and increased production costs. On the other hand, the quality of manual line drawing is difficult to guarantee. Due to factors such as the worker's skill level, operational proficiency, and fatigue, it is difficult to control the uniformity of the line thickness, easily resulting in inconsistent line thickness and crooked lines, seriously affecting the overall quality of the shoes.

[0004] Furthermore, manual line marking also poses certain safety hazards. Workers are prone to fatigue and loss of concentration during prolonged operation, leading to accidents. Moreover, manual line marking requires workers to maintain the same posture for extended periods, increasing the risk of occupational diseases and harming their health. Therefore, developing an automated, efficient, and high-quality shoe groove line marking device is of significant practical importance. Summary of the Invention

[0005] One object of the present invention is to provide an automatic shoe groove marking device for achieving efficient, stable and economical shoe groove marking.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an automatic shoe groove marking device, the automatic shoe groove marking device comprising: A conveying device, wherein a plurality of conveying platforms are provided on the conveying device, and a conveying power unit for driving the conveying platforms to move linearly; A rotating mechanism is mounted on the conveying platform, and the rotating shaft of the rotating mechanism is horizontally set; the shoe body to be marked is mounted on the rotating shaft; The line drawing section includes a mounting frame and a line drawing rod. The mounting frame is fixed to the machine frame, and the line drawing rod is slidably mounted on the mounting frame on a vertical and horizontal plane. The line drawing rod is aligned with the shoe groove of the shoe body. The line drawing rod has a hollow design and is filled with ink for drawing lines. A line drawing head is provided at the bottom of the line drawing rod. The line drawing head is in close contact with the shoe groove of the shoe body. When the rotating mechanism drives the shoe body to rotate, the line drawing head draws lines along the shoe groove of the shoe body. A control unit is disposed on the rotating mechanism and the mounting frame. The control unit is electrically connected to the conveying power unit and the rotating mechanism to control the operation of the conveying power unit and the rotating mechanism.

[0007] In one embodiment, the drawing head has a hollow conical structure, and an ink outlet is provided at the bottom of the tip of the drawing head. A freely rotatable steel ball is provided on the ink outlet, and the bottom end of the steel ball protrudes from the ink outlet.

[0008] In one embodiment, a force-applying ring is further included, which is fixed to the drawing rod and is used to apply a constant downward force to the drawing rod; when the bottom of the force-applying ring is in close contact with the mounting bracket, the drawing rod is in its lowest position.

[0009] In one embodiment, the mounting bracket is provided with a sliding hole, the diameter of which is larger than the outer diameter of the drawing rod, and a plurality of freely rotatable ball bearings are embedded in the sliding hole, the ball bearings being in close contact with the drawing rod.

[0010] In one embodiment, the rotating mechanism includes: L-shaped mounting plate, the base plate of which is fixed to the conveying platform; A rotational power unit is mounted on the L-shaped mounting plate, and the rotation axis of the rotational power unit intersects perpendicularly with the axis of the drawing rod. A shoe mold is fixed on the rotating shaft of the rotating power unit. The shoe mold has an installation groove for mounting and fixing the shoe body, and the shoe body is installed in the installation groove of the shoe mold.

[0011] In one embodiment, the shape of the mounting groove is consistent with the shape of the shoe body.

[0012] In one embodiment, the control unit includes: An infrared sensor is mounted on the top plate of the L-shaped mounting plate; An identification mark is provided on the mounting bracket and is used in conjunction with the infrared sensor; A programmable control module is electrically connected to the infrared sensor, the rotating power unit, and the conveying power unit. The programmable control module controls the operation of the rotating power unit and the conveying power unit based on the information emitted by the infrared sensor.

[0013] Another object of the present invention is to provide an automatic shoe groove marking method, the automatic shoe groove marking method comprising the following steps: S1. Install and fix the shoe body onto the shoe mold, and use the mounting groove on the shoe mold to position the shoe body so that the shoe groove and the drawing rod are on the same plane; S2. The conveying device transports the rotating mechanism and the shoe body on it. When the infrared sensor detects the identification mark on the mounting frame, the infrared sensor transmits the signal to the programmable control module. The programmable control module controls the conveying power unit to stop immediately according to the signal, so that the shoe body stays in the line area where the line drawing pole is located. S3. The programmable control module controls the rotating power unit to rotate one revolution, while keeping the linear velocity of the area on the shoe body that contacts the drawing head uniform and constant, thus completing the shoe groove drawing action. S4. After the rotational power unit completes its rotational action, the programmable control module controls the power delivery unit to continue operating. S5. Repeat steps S2-S4 to draw lines on the next shoe body.

[0014] The above-described technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The automatic shoe groove marking device and method of the present invention precisely controls the operation of the rotating mechanism and the conveying power unit through a control unit. The conveying device can accurately transfer the rotating mechanism and the shoe body on it to the marking area (i.e., directly below the marking rod) and stop it, while controlling the rotating mechanism to drive the shoe body to rotate for marking. After the marking is completed, the control unit controls the rotating mechanism to stop operating and simultaneously starts the conveying power unit until the next shoe body on the rotating mechanism moves to the marking area, and then repeats the above actions to mark the line. This automated continuous marking method greatly improves production efficiency, can meet the needs of large-scale production, effectively shortens the production cycle, and reduces production costs.

[0015] Furthermore, during the line drawing process, when the shoe body is mounted on the rotating mechanism, its sole surface is perpendicular to the horizontal plane, and the line drawing rod slides vertically up and down on the mounting frame. When the shoe body rotates, the line drawing head at the bottom of the line drawing rod adheres to the shoe groove under its own weight, and the line drawing rod slides up and down with the height fluctuations of the shoe groove caused by the shoe body's rotation. This allows the line drawing head to move relatively around the shoe groove during shoe body rotation, thereby drawing lines on the shoe groove. At the same time, the line drawing pressure exerted by the line drawing head on the shoe groove is equal to the weight of the line drawing rod (ignoring internal ink consumption), and its magnitude remains basically constant. Therefore, the thickness of the lines drawn by the line drawing head (related to the line drawing pressure of the line drawing head) is basically consistent, resulting in uniform line thickness in the shoe groove, greatly improving the shoe's appearance and quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0017] Figure 1 This is a schematic diagram of the automatic shoe groove marking device provided in an embodiment of the present invention; Figure 2 and Figure 3 A schematic diagram of the automatic shoe groove marking device provided in an embodiment of the present invention during the marking process; Figure 4 This is a schematic diagram of the structure of a shoe mold provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the line drawing part provided in an embodiment of the present invention.

[0018] The labels for the various figures are as follows: 1. Conveying device; 2. Rotating mechanism; 3. Marking section; 4. Control section; 5. Shoe body; 11. Conveying platform; 21. L-shaped mounting plate; 22. Rotation power unit; 23. Shoe mold; 31. Mounting frame; 32. Marking rod; 33. Force ring; 41. Infrared sensor; 42. Identification mark; 311. Ball bearing; 321. Marking end; 322. Steel ball. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

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

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Please see Figures 1 to 3 This application provides an automatic shoe groove marking device, including a conveying device 1, a rotating mechanism 2, a marking section 3, and a control section 4. The conveying device 1 is equipped with several conveying platforms 11 and a conveying power unit that drives the conveying platforms 11 to move linearly. The rotating mechanism 2 is mounted on the conveying platforms 11, and its rotating shaft is horizontally positioned; the shoe body 5 to be marked is mounted on the rotating shaft. The marking section 3 includes a mounting frame 31 and a marking rod 32. The mounting frame 31 is fixed to the machine frame, and the marking rod 32 is slidably mounted vertically on the mounting frame 31. The marking rod 32 is aligned with the shoe groove of the shoe body 5. The marking rod 32 has a hollow design, and its interior is filled with ink for marking. A marking head 321 is provided at the bottom of the marking rod 32, and the marking head 321 is in close contact with the shoe groove of the shoe body 5. When the rotating mechanism 2 drives the shoe body 5 to rotate, the marking head 321 marks a line along the shoe groove of the shoe body 5. The control unit 4 is mounted on the rotating mechanism 2 and the mounting bracket 31. The control unit 4 is electrically connected to the power supply unit and the rotating mechanism 2 to control the operation of the power supply unit and the rotating mechanism 2.

[0024] This invention controls the rotating mechanism 2 and the conveying power unit through the control unit 4, so that the conveying device 1 can accurately transfer the rotating mechanism 2 and the shoe body 5 on it to the marking area (i.e., directly below the marking rod 32) and stop there (e.g.) Figure 2 As shown), the rotating mechanism 2 drives the shoe body 5 to rotate. Since the sole of the shoe body 5 is perpendicular to the horizontal plane when mounted on the rotating mechanism 2, and the drawing rod 32 slides vertically up and down on the mounting bracket 31, when the shoe body 5 rotates, the drawing head 321 at the bottom of the drawing rod 32 adheres to the shoe groove of the shoe body 5 under its own action. Furthermore, the drawing rod 32 slides up and down with the rotation of the shoe body 5 due to the changing height of the shoe groove. Figure 3 This diagram illustrates the drawing process when the shoe body 5 rotates 90° (at which point the drawing rod 32 slides upwards to its top position), allowing the drawing head 321 to move relative to the shoe groove as the shoe body 5 rotates, thus drawing lines on the shoe groove. The principle is similar to the casting method. After drawing, the control unit 4 stops the rotation mechanism 2 and simultaneously starts the power supply unit. This process continues until the next shoe body 5 on the rotation mechanism 2 moves to the drawing area, at which point the above actions are repeated to achieve automated continuous drawing. Furthermore, because the drawing pressure exerted by the drawing head 321 on the shoe groove during the drawing process is equal to the weight of the drawing rod 32 (ignoring internal ink consumption), its magnitude remains essentially constant. This ensures that the thickness of the lines drawn by the drawing head 321 (related to the drawing pressure of the drawing head 321) is consistently uniform, resulting in consistent line thickness in the shoe groove.

[0025] In one embodiment, the drawing head 321 has a hollow conical structure. An ink outlet is located at the bottom of the tip of the drawing head 321, and a freely rotatable steel ball 322 is mounted on the ink outlet. The bottom of the steel ball 322 protrudes from the ink outlet. During drawing, due to the relative movement between the bottom of the tip of the drawing head 321 and the shoe groove of the shoe body 5, the friction between them causes the steel ball 322 to rotate. The drawing rod 32 and the drawing head 321 are filled with ink. As the steel ball 322 rotates, it carries the ink from the drawing head 321 out and imprints it into the shoe groove, thus achieving the drawing function. Furthermore, when not drawing lines, the steel ball 322 does not rotate, preventing the ink in the drawing head 321 from being carried out, thus avoiding ink leakage and waste during non-drawing operations and saving costs.

[0026] In one embodiment, a force-applying ring 33 is also included. The force-applying ring 33 is fixed to the marking rod 32 and is used to provide a constant downward pressure to the marking rod 32. When the bottom of the force-applying ring 33 is in close contact with the mounting bracket 31, the marking rod 32 is in its lowest position. The weight of the force-applying ring 33 can be adjusted according to the actual marking requirements. The force-applying ring 33 can increase the marking pressure exerted by the marking head 321 on the shoe groove during marking, thereby adjusting the thickness of the marking line.

[0027] Optionally, an elastic element (such as a spring or sheet) can be installed inside the drawing head 321. One end of the elastic element is fixed inside the drawing head 321, and the other end rests against the steel ball 322. When the drawing pressure increases, the elastic element retracts under pressure, causing the steel ball 322 to also retract towards the inside of the drawing head 321. This increases the gap between the steel ball 322 and the edge of the ink outlet, making it easier for the ink to flow out of the drawing head 321, thus increasing the line thickness. Conversely, when the drawing pressure decreases, the elastic element rebounds, causing the steel ball 322 to approach the ink outlet. This reduces the gap between the steel ball 322 and the edge of the ink outlet, making it more difficult for the ink to flow out of the drawing head 321, resulting in a thinner line. Therefore, the line thickness can be adjusted according to the drawing pressure.

[0028] like Figure 5 As shown, in one embodiment, the mounting bracket 31 is provided with a sliding hole, the diameter of which is larger than the outer diameter of the drawing rod 32. Multiple freely rotatable ball bearings 311 are embedded within the sliding hole, and the ball bearings 311 are in close contact with the drawing rod 32. Specifically, the ball bearings 311 are evenly distributed in a ring along the inner wall of the sliding hole, with a number of no less than four. Rolling friction reduces the resistance between the drawing rod 32 and the mounting bracket 31, ensuring vertical sliding accuracy. Therefore, by setting the ball bearings 311, the friction between the drawing rod 32 and the mounting bracket 31 is reduced, thereby reducing the wear rate of the drawing rod 32 and increasing the service life of the device. Furthermore, reducing the friction between the drawing rod 32 and the mounting bracket 31 minimizes the influence of friction on the drawing force during line drawing, making it easier to control the thickness of the drawn lines.

[0029] In one embodiment, the rotating mechanism 2 includes an L-shaped mounting plate 21, a rotating power unit 22, and a shoe mold 23. The base plate of the L-shaped mounting plate 21 is fixed to the conveying platform 11. The rotating power unit 22 is disposed on the L-shaped mounting plate 21, and the axis of rotation of the rotating power unit 22 intersects perpendicularly with the axis of the drawing rod 32. The shoe mold 23 is fixed to the axis of rotation of the rotating power unit 22, and the shoe mold 23 has a mounting groove for mounting and fixing the shoe body 5, which is installed in the mounting groove of the shoe mold 23. The L-shaped mounting plate 21 is mounted on the conveying platform 11 by a threaded component. When drawing lines, the rotating power unit 22 (specifically a stepper motor) works and drives the shoe mold 23 to rotate, thereby causing the shoe body 5 to rotate for drawing lines.

[0030] In one embodiment, the shape of the mounting groove matches the shape of the shoe body 5. For example... Figure 4 As shown, by setting the mounting groove to match the shape of the shoe body 5, the shoe body 5 is more stable when installed in the mounting groove, and the mounting groove can also position the shoe body 5, improving the accuracy of the drawing.

[0031] In one embodiment, the control unit 4 includes an infrared sensor, an identification tag 42, and a programmable control module. The infrared sensor is mounted on the top plate of the L-shaped mounting plate 21. The identification tag 42 is mounted on the mounting bracket 31 and works in conjunction with the infrared sensor. The programmable control module is electrically connected to the infrared sensor, the rotation power unit 22, and the conveying power unit. The programmable control module controls the operation of the rotation power unit 22 and the conveying power unit based on the information emitted by the infrared sensor.

[0032] When the conveyor 1 transports the rotating device and its infrared sensor to the drawing area, the infrared sensor detects the identification mark 42 on the mounting bracket 31, and then controls the conveying power unit to stop operating through the programmable control module, so that the rotating mechanism 2 stops in the drawing area. Furthermore, the programmable control module controls the rotating power unit 22 to rotate and draw the line.

[0033] Another object of the present invention is to provide an automatic shoe groove marking method, which includes the following steps: S1. Install and fix the shoe body 5 onto the shoe mold 23, and use the mounting groove on the shoe mold 23 to position the shoe body 5 so that the shoe groove and the line drawing rod 32 are on the same plane. S2. The conveying device 1 transports the rotating mechanism 2 and the shoe body 5 on it. When the infrared sensor senses the identification mark 42 on the mounting frame 31, the infrared sensor transmits the signal to the programmable control module. The programmable control module controls the conveying power unit to stop immediately according to the signal, so that the shoe body 5 stays in the line drawing area where the line drawing rod 32 is located. S3. The programmable control module controls the rotating power unit 22 to rotate one revolution, while keeping the linear velocity of the area on the shoe body 5 in contact with the line drawing head 321 uniform and constant, thus completing the shoe groove line drawing action. S4. After the rotation power unit 22 completes the rotation action, the programmable control module controls the transmission power unit to continue operating. S5. Repeat steps S2-S4 to draw lines for the next shoe body 5.

[0034] In step S3, by keeping the linear velocity of the area on the shoe body 5 in contact with the line drawing head 321 uniform and constant, the rotational angular velocity in each rotation angle range can be preset according to the shape of the shoe groove of the shoe body 5 and the position of the rotation center. This ensures that the relative motion speed between the line drawing head 321 and the shoe groove remains uniform and constant during line drawing, thereby improving the uniformity of the line width and the quality of the line drawing.

[0035] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic shoe groove marking device, characterized in that, The automatic shoe groove marking device includes: A conveying device, wherein a plurality of conveying platforms are provided on the conveying device, and a conveying power unit for driving the conveying platforms to move linearly; A rotating mechanism is mounted on the conveying platform, and the rotating shaft of the rotating mechanism is horizontally set; the shoe body to be marked is mounted on the rotating shaft; The line drawing section includes a mounting frame and a line drawing rod. The mounting frame is fixed to the machine frame, and the line drawing rod is slidably mounted on the mounting frame on a vertical and horizontal plane. The line drawing rod is aligned with the shoe groove of the shoe body. The line drawing rod has a hollow design and is filled with ink for drawing lines. A line drawing head is provided at the bottom of the line drawing rod. The line drawing head is in close contact with the shoe groove of the shoe body. When the rotating mechanism drives the shoe body to rotate, the line drawing head draws lines along the shoe groove of the shoe body. A control unit is disposed on the rotating mechanism and the mounting frame. The control unit is electrically connected to the conveying power unit and the rotating mechanism to control the operation of the conveying power unit and the rotating mechanism. The drawing head has a hollow conical structure, and an ink outlet is provided at the bottom of the tip of the drawing head. A freely rotating steel ball is provided on the ink outlet, and the bottom end of the steel ball protrudes from the ink outlet. It also includes a force-applying ring, which is fixed to the drawing rod and is used to apply a constant downward force to the drawing rod; when the bottom of the force-applying ring is in close contact with the mounting bracket, the drawing rod is in its lowest position. The mounting bracket is provided with a sliding hole, the diameter of which is larger than the outer diameter of the drawing rod. Multiple freely rotatable ball bearings are embedded in the sliding hole, and the ball bearings are in close contact with the drawing rod.

2. The automatic shoe groove marking device according to claim 1, characterized in that, The rotating mechanism includes: L-shaped mounting plate, the base plate of which is fixed to the conveying platform; A rotational power unit is mounted on the L-shaped mounting plate, and the rotation axis of the rotational power unit intersects perpendicularly with the axis of the drawing rod. A shoe mold is fixed on the rotating shaft of the rotating power unit. The shoe mold has an installation groove for mounting and fixing the shoe body, and the shoe body is installed in the installation groove of the shoe mold.

3. The automatic shoe groove marking device according to claim 2, characterized in that: The shape of the mounting groove is consistent with the shape of the shoe body.

4. The automatic shoe groove marking device according to claim 2, characterized in that, The control unit includes: An infrared sensor is mounted on the top plate of the L-shaped mounting plate; An identification mark is provided on the mounting bracket and is used in conjunction with the infrared sensor; A programmable control module is electrically connected to the infrared sensor, the rotating power unit, and the conveying power unit. The programmable control module controls the operation of the rotating power unit and the conveying power unit based on the information emitted by the infrared sensor.

5. A method for automatically marking lines on a shoe groove, using the automatic shoe groove marking device described in claim 4, characterized in that, The automatic shoe groove marking method includes the following steps: S1. Install and fix the shoe body onto the shoe mold, and use the mounting groove on the shoe mold to position the shoe body so that the shoe groove and the drawing rod are on the same plane; S2. The conveying device transports the rotating mechanism and the shoe body on it. When the infrared sensor detects the identification mark on the mounting frame, the infrared sensor transmits the signal to the programmable control module. The programmable control module controls the conveying power unit to stop immediately according to the signal, so that the shoe body stays in the line area where the line drawing pole is located. S3. The programmable control module controls the rotating power unit to rotate one revolution, while keeping the linear velocity of the area on the shoe body that contacts the drawing head uniform and constant, thus completing the shoe groove drawing action. S4. After the rotational power unit completes its rotational action, the programmable control module controls the power delivery unit to continue operating. S5. Repeat steps S2-S4 to draw lines on the next shoe body.

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