An adjustable depth lasting machine

Abstract

The utility model discloses an adjustable line marking depth's vamp line marking machine belongs to vamp processing equipment technical field, solves existing line marking machine position regulation difference, depth precision is low, the problem of difficult replacement of assembly, it includes mounting bracket, transverse movement subassembly, front and back movement subassembly, depth adjustment subassembly and line marking subassembly, transverse and front and back movement subassembly are driven with line marking subassembly and realize plane accurate positioning with lead screw, and depth adjustment subassembly is driven with line marking subassembly and is not stainless steel pointer quantization control depth with scale instrument, and line marking subassembly realizes line marking knife toolless dismounting with rubber elasticity clamping block, the utility model discloses can multidimensional accurate regulation, and operation maintenance is convenient, guarantees line marking quality stability, is applicable to shoemaking industry diversification vamp line marking demand.

Description

Technical Field

[0001] This utility model belongs to the technical field of shoe upper processing equipment, specifically relating to a special equipment for marking shoe uppers. It is suitable for scenarios in the shoe manufacturing industry where marking is performed on shoe uppers at different positions and depths. It can meet diverse shoe upper processing needs and provide accurate positioning references for subsequent shoe upper cutting, sewing and other processes. Background Technology

[0002] Most existing shoe upper marking machines have a fixed structure, which can only perform marking operations in a single direction or at a fixed depth. They cannot flexibly adjust the marking position according to the processing needs of different areas of the shoe upper. When marking different positions on the left, right, front, and back of the shoe upper, the shoe upper needs to be manually adjusted frequently. This operation is cumbersome and has low positioning accuracy, which can easily lead to marking deviations and affect the accuracy of subsequent processing steps. Traditional shoe upper marking equipment lacks an effective depth adjustment mechanism. The marking depth is mostly preset and fixed. It cannot adjust the marking depth according to the thickness difference of the shoe upper material (such as leather, fabric, synthetic materials, etc.) or different marking process requirements (such as shallow positioning lines, deep cutting lines). Too deep a marking can easily damage the shoe upper, while too shallow a marking will result in unclear markings, affecting the recognition of subsequent processes. The marking components of some marking machines are complicated to install. When the marking blade is worn or damaged and needs to be replaced, the disassembly and installation process is time-consuming, and it is difficult to guarantee the installation accuracy of the marking blade after replacement. This can easily lead to marking deviation problems, reducing the operating efficiency and marking quality of the equipment.

[0003] Therefore, it is necessary to design a shoe upper marking machine with adjustable marking depth to solve the problems mentioned above. Utility Model Content

[0004] This invention aims to solve the problems of poor flexibility in adjusting the marking position, low precision in depth control, inconvenient replacement of marking components, and insufficient consistency in marking quality between batches in existing shoe upper marking machines. It provides a shoe upper marking machine with an adjustable marking depth that features a compact structure, multi-dimensional precise adjustment, convenient operation and maintenance, and stable marking quality. This machine meets the marking needs of shoe uppers with different materials and processes in the footwear industry, and improves the automation level and product precision of shoe upper processing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable marking depth shoe upper marking machine integrates a mounting frame, a lateral movement component, a front and rear movement component, a depth adjustment component, and a marking component through modular design. The components work together to achieve precise control of the marking position and depth.

[0007] The core support structure of the equipment is a mounting frame. The lateral movement component is fixedly installed on the top of the mounting frame via the upper side plates on the left and right sides, forming the basic frame for lateral adjustment. The front-back movement component is connected to the bottom of the lateral movement component via the lower side plates on the front and back sides, and can move left and right synchronously with the lateral movement component, while independently completing the front-back adjustment. The depth adjustment component is assembled below the front-back movement component through the sliding cooperation of the guide slider and the guide rail, ensuring stability and no deviation during the depth adjustment process. The marking component is fixedly installed at the bottom of the depth adjustment component, and can move in three dimensions (left, right, front, back, and up) respectively under the drive of the three major movement components, ultimately completing the marking operation at different positions and depths on the shoe upper.

[0008] Furthermore, the lateral movement component consists of a lateral drive motor, a lateral movement screw, and a lateral screw nut. The lateral drive motor is fixedly installed on the outer side of one upper side plate, and its output end is rigidly connected to one end of the lateral movement screw. The other end of the lateral movement screw is rotatably connected to the other upper side plate through a bearing to ensure coaxiality and stability during screw rotation. The lateral screw nut is threadedly engaged with the lateral movement screw and is fixedly connected to the top of the front and rear movement components. When the lateral drive motor starts, it drives the lateral movement screw to rotate, which is converted into linear motion of the lateral screw nut through threaded transmission. This, in turn, drives the front and rear movement components, depth adjustment components, and marking components to achieve precise left and right movement simultaneously, meeting the marking requirements of different lateral positions on the shoe upper.

[0009] Furthermore, the front and rear moving assembly adopts the same screw drive structure as the lateral moving assembly, including a front and rear drive motor, a front and rear moving screw, and a front and rear screw nut. The front and rear drive motor is installed on the outside of one side of the lower side plate, and its output end is connected to one end of the front and rear moving screw. The other end of the front and rear moving screw is rotatably connected to the other side of the lower side plate through a bearing. The front and rear screw nut is threadedly engaged with the front and rear moving screw and is fixedly connected to the guide rail of the depth adjustment assembly. When the front and rear drive motor is started, the front and rear moving screw rotates, driving the front and rear screw nut to move linearly, thereby driving the depth adjustment assembly and the marking assembly to move in the front and rear direction. In conjunction with the lateral moving assembly, marking and positioning can be achieved at any plane position on the shoe upper.

[0010] Furthermore, the depth adjustment component is hydraulically driven, comprising a hydraulic cylinder, a hydraulic rod, a scale, and a pointer. The hydraulic cylinder is fixedly mounted on the top of the guide slider, and the hydraulic rod is movably connected to the piston inside the hydraulic cylinder. The bottom of the hydraulic rod extends downwards and is fixed to the top of the scribing component. By changing the pressure of the hydraulic oil inside the hydraulic cylinder, the hydraulic rod is pushed to extend and retract vertically, thereby moving the scribing component up and down to adjust the scribing depth. To improve depth control accuracy, a scale with a scale accuracy of 0.01mm is installed on the surface of the hydraulic rod. A stainless steel pointer is installed at the connection between the hydraulic cylinder and the hydraulic rod, with the end of the pointer closely fitting the surface of the scale, accurately pointing to the scale value corresponding to the current extension and retraction of the hydraulic rod. This allows operators to intuitively read and control the scribing depth, avoiding depth adjustment deviations caused by visual errors. The stainless steel pointer has high strength and corrosion resistance, maintaining pointing accuracy over a long period and extending the service life of the equipment.

[0011] Furthermore, the scribing assembly consists of a scribing blade holder, a scribing blade, and elastic clamping blocks. The scribing blade holder is a hollow cylindrical structure with a groove at its bottom end that matches the scribing blade. Elastic clamping blocks are symmetrically arranged inside the groove. The elastic clamping blocks are made of rubber, which has good elasticity and wear resistance, and its surface is machined with anti-slip textures to increase friction with the scribing blade. The scribing blade is made of cemented carbide, which has high hardness and high toughness. The blade edge is hardened to further improve the blade's hardness and sharpness, extending its service life. The scribing blade can be detachably locked into the groove by the elastic clamping force of the elastic clamping blocks. During installation, the scribing blade can be directly inserted into the groove to complete the fixation. During disassembly, only external force needs to be applied to pull it out, without the need for tools, greatly simplifying the replacement process.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, through the provision of an adjustable-depth shoe upper marking machine, achieves the following effects: 1. By setting up a lateral movement component (including a lateral drive motor, a lateral movement screw, and a lateral screw nut) and a front-back movement component (including a front-back drive motor, a front-back movement screw, and a front-back screw nut), the marking component can be driven to achieve precise left-right and front-back movements, respectively. Marking operations on different areas of the shoe upper can be completed without manual adjustment of the shoe upper position, significantly simplifying the operation process and reducing positioning deviations caused by manual intervention. Simultaneously, the threaded engagement structure of the screw and nut features high transmission accuracy and stable operation, ensuring accurate marking. The improved movement precision of the components enhances the accuracy of the marking positions on the shoe upper, providing a reliable positioning basis for subsequent cutting and sewing processes, and improving the overall efficiency of the shoe manufacturing process. 2. The hydraulic cylinder and hydraulic rod in the depth adjustment component work together to move the marking component up and down, thus flexibly adjusting the marking depth. This adapts to different thicknesses of shoe upper materials (e.g., thicker leather requires deeper markings, thinner fabric requires shallower markings) and different marking process requirements, avoiding problems such as shoe upper damage or unclear markings due to a fixed depth. Simultaneously, the hydraulic drive method offers advantages such as smooth operation and stable driving force, ensuring the stability of the marking component during depth adjustment. To further ensure scribing quality; 3. The scribing assembly adopts a structure that combines a scribing blade holder with an elastic clamping block. The scribing blade is detachably clamped into the blade groove via the elastic clamping block. When the scribing blade is worn or damaged, it can be replaced simply by plugging and unplugging, without the need for complex tools, greatly shortening replacement time and improving the continuity of equipment operation; moreover, the rubber elastic clamping block has good elasticity and clamping force, and with the anti-slip texture on the surface, it can firmly fix the scribing blade, preventing it from loosening or shifting during scribing. At the same time, after replacement, the installation accuracy of the scribing blade can be quickly restored, ensuring the consistency of the scribing position and reducing scribing deviation caused by component replacement. 4. The depth adjustment component is equipped with a scale (scale accuracy 0.01mm) and a stainless steel pointer. The pointer can accurately point to the value corresponding to the scale, realizing the quantitative display and control of the scribing depth. Operators can accurately set the scribing depth according to their needs, replacing the traditional experience-based adjustment method, ensuring that the scribing depth error of the same batch of shoe uppers is controlled within a very small range, significantly improving the stability of product quality. The stainless steel pointer is corrosion-resistant and high-strength, and can maintain accurate pointing for a long time, avoiding depth display deviation caused by component wear, extending the equipment's accuracy maintenance cycle, and is suitable for the high-precision production needs of high-end shoe manufacturing; 5.The equipment is modularly composed of a mounting frame, lateral movement components, forward and backward movement components, depth adjustment components, and marking components. Each component is connected via upper and lower side plates, guide sliders, and guide rails, resulting in a clear structure and convenient assembly. When a component malfunctions, it can be disassembled and repaired or replaced specifically, without requiring complete equipment disassembly, thus reducing maintenance difficulty and costs. Furthermore, the modular structure facilitates upgrades to individual components based on future production needs, improving equipment compatibility and lifespan, and reducing equipment replacement costs for enterprises. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 3 This is a side view of the structure of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the scribing component of this utility model.

[0018] In the diagram: 1. Mounting bracket; 2. Lateral movement assembly; 21. Lateral drive motor; 22. Lateral movement screw; 23. Lateral screw nut; 3. Forward and backward movement assembly; 31. Forward and backward drive motor; 32. Forward and backward movement screw; 33. Forward and backward screw nut; 4. Depth adjustment assembly; 41. Hydraulic cylinder; 42. Hydraulic rod; 43. Scale gauge; 44. Pointer; 5. Scribing assembly; 51. Scribing tool holder; 52. Scribing tool; 53. Tool groove; 54. Elastic clamping block; 6. Upper side plate; 7. Guide slide rail; 8. Lower side plate; 9. Guide slider. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0021] Example 1

[0022] Please see Figure 1 This embodiment provides a shoe upper marking machine with adjustable marking depth. The marking machine includes a mounting frame 1, a lateral movement component 2, a front and rear movement component 3, a depth adjustment component 4, and a marking component 5. Each component is assembled in a modular manner to form a complete marking device.

[0023] The lateral movement component 2 is fixedly mounted on the mounting frame 7 via the upper side plates 6 on both the left and right sides. The upper side plates 6 and the mounting frame 7 are fastened with bolts to ensure that the lateral movement component 2 does not shift during operation. The front-to-back movement component 3 is connected to the bottom of the lateral movement component 2 via the lower side plates 8 on both the front and back sides. The lower side plates 8 are welded and fixed to the bottom of the lateral movement component 2 and the top of the front-to-back movement component 3 respectively to ensure connection strength. The depth adjustment component 4 is connected to the front-to-back movement component 3 via the guide slider 9 and the guide rail 7. The guide slider 9 can slide along the length of the guide rail 7 to realize relative movement between the depth adjustment component 4 and the front-to-back movement component 3. The marking component 5 is installed at the bottom of the depth adjustment component 4 and is fixed by a threaded connection for easy disassembly and maintenance.

[0024] In actual operation, the lateral movement component 2 can drive the marking component 5 to move in the left and right direction, the forward and backward movement component 3 can drive the marking component 5 to move in the forward and backward direction, and the depth adjustment component 4 can drive the marking component 5 to move in the up and down direction. The three work together to achieve marking operations at different positions and depths on the shoe upper, meeting the diverse marking needs of the shoe industry and effectively solving the problem that existing marking machines can only mark in a single direction and at a fixed depth.

[0025] Example 2

[0026] Please see Figure 2 Based on Embodiment 1, this embodiment further defines the specific structure of the lateral movement component 2. The lateral movement component 2 includes a lateral drive motor 21, a lateral movement screw 22, and a lateral screw nut 23. The lateral drive motor 21 is mounted on an upper side plate 6 via a motor mount, and the motor mount is bolted to the upper side plate 6 to ensure stable operation of the lateral drive motor 21. The lateral movement screw 22 is connected to the output end of the lateral drive motor 21 via a coupling and can rotate synchronously with the output end of the lateral drive motor 21. The lateral screw nut 23 is threadedly engaged with the lateral movement screw 22, and the outer side of the lateral screw nut 23 is fixedly connected to the mounting plate at the top of the front and rear movement components 3. The side of the lateral movement screw 22 away from the lateral drive motor 21 is rotatably connected to the upper side plate 6 on the other side via a bearing. The bearing is a deep groove ball bearing to reduce the frictional resistance when the lateral movement screw 22 rotates.

[0027] When the left and right positions of the marking assembly 5 need to be adjusted, the lateral drive motor 21 is activated. The output of the lateral drive motor 21 drives the lateral moving screw 22 to rotate. The lateral moving screw 22 drives the lateral screw nut 23 to move along the length of the screw through thread transmission, thereby driving the front and rear moving assembly 3, the depth adjustment assembly 4, and the marking assembly 5 to move left and right synchronously, achieving precise lateral adjustment of the marking position. This screw transmission structure features high transmission accuracy and smooth operation, which can effectively improve the positioning accuracy of the lateral movement of the marking assembly 5 and avoid marking deviations caused by manual adjustment of the shoe upper position.

[0028] Example 3

[0029] Please see Figure 3 Based on Embodiment 1, this embodiment further defines the specific structure of the front-to-back moving assembly 3. The front-to-back moving assembly 3 includes a front-to-back drive motor 31, a front-to-back moving screw 32, and a front-to-back screw nut 33. The front-to-back drive motor 31 is mounted on the lower side plate 8 via a motor mount, and the motor mount is bolted to the lower side plate 8 to ensure that the front-to-back drive motor 31 is securely installed. The front-to-back moving screw 32 is connected to the output end of the front-to-back drive motor 31 via a coupling, and can rotate synchronously with the output end of the front-to-back drive motor 31. The front-to-back screw nut 33 is threadedly engaged with the front-to-back moving screw 32, and the outer side of the front-to-back screw nut 33 is fixedly connected to the guide rail 7 of the depth adjustment assembly 4. The side of the front-to-back moving screw 32 away from the front-to-back drive motor 31 is rotatably connected to the lower side plate 8 on the other side via a bearing. The bearing is a deep groove ball bearing to reduce wear when the front-to-back moving screw 32 rotates.

[0030] When it is necessary to adjust the front and rear position of the marking assembly 5, the front and rear drive motors 31 are started. The output of the front and rear drive motors 31 drives the front and rear moving screws 32 to rotate. The front and rear moving screws 32 drive the front and rear screw nuts 33 to move along the length of the screw through the screw drive, thereby driving the guide rail 7, depth adjustment assembly 4 and marking assembly 5 to move back and forth synchronously, so as to achieve precise front and rear adjustment of the marking position. This structure, in conjunction with the screw drive structure of the lateral moving assembly 2, can realize the positioning of the marking assembly 5 at any position in the plane of the shoe upper, greatly improving the flexibility of marking.

[0031] Example 4

[0032] Please see Figure 2 as well as Figure 3Based on Embodiment 1, this embodiment further defines the specific structure of the depth adjustment component 4. The depth adjustment component 4 includes a hydraulic cylinder 41 and a hydraulic rod 42. The hydraulic cylinder 41 is bolted to the guide slider 9, and the guide slider 9 can slide along the guide rail 10 to realize the front and rear position of the depth adjustment component 4. The hydraulic rod 42 is movably connected to the hydraulic cylinder 41, and the hydraulic rod 42 can extend and retract in the vertical direction under the drive of the hydraulic cylinder 41. The bottom of the hydraulic rod 42 is threadedly connected to the scribing component 5 to ensure a stable connection and facilitate the disassembly and replacement of the scribing component 5.

[0033] When the scribing depth needs to be adjusted, hydraulic oil is introduced into the hydraulic cylinder 41. The hydraulic oil pushes the piston inside the hydraulic cylinder 41 to move, which in turn drives the hydraulic rod 42 to extend and retract vertically. The hydraulic rod 42 drives the scribing assembly 5 to move up and down synchronously, thereby adjusting the scribing depth. The hydraulic drive method has the advantages of stable driving force and smooth operation, which can avoid the scribing assembly 5 from shaking during the depth adjustment process, ensuring uniform and effective scribing depth.

[0034] Example 5

[0035] Please see Figure 2 as well as Figure 3 Based on Embodiment 1, this embodiment further optimizes the precision control structure of the depth adjustment component 4. The depth adjustment component 4 also includes a scale 43 located on the surface of the hydraulic rod 42 and a pointer 44 located between the hydraulic cylinder 41 and the hydraulic rod 42. One end of the pointer 44 is welded and fixed to the outer wall of the hydraulic cylinder 41, and the other end extends to the surface of the scale 43, and the pointer 44 points to the corresponding value of the scale 43. The scale accuracy of the scale 43 is 0.01mm, and it is processed by laser engraving to ensure clear scale and wear resistance. The pointer 44 is made of stainless steel, which has the characteristics of high strength and corrosion resistance, and can maintain pointing accuracy for a long time.

[0036] When adjusting the scribing depth, the operator can precisely control the extension and retraction of the hydraulic rod 42 by observing the value pointed to by the pointer 44 on the scale 43, thereby achieving quantitative adjustment of the scribing depth and replacing the traditional experience-based adjustment method. This structure can control the scribing depth error within 0.01mm, ensuring the consistency of the scribing depth of the same batch of shoe uppers, significantly improving product quality stability, and is especially suitable for high-end shoe manufacturing scenarios with high precision requirements.

[0037] Example 6

[0038] Please see Figure 4Based on Embodiment 1, this embodiment further defines the specific structure of the scribing assembly 5. The scribing assembly 5 includes a scribing blade holder 51 and a scribing blade 52. The scribing blade holder 51 has a cylindrical structure with a blade groove 53 at its bottom. The shape of the blade groove 53 is adapted to the shape of the handle of the scribing blade 52 to ensure that the scribing blade 52 can be stably inserted. An elastic clamping block 54 is provided inside the blade groove 53. The elastic clamping block 54 is made of rubber and has good elasticity and wear resistance. The surface of the elastic clamping block 54 is provided with anti-slip texture, which is a horizontal stripe to increase the friction with the handle of the scribing blade 52. The scribing blade 52 is detachably snapped into the blade groove 53 by the elastic clamping block 54. During installation, the handle of the scribing blade 52 is directly inserted into the blade groove 53, and the elastic clamping block 54 clamps the handle under its own elasticity. During disassembly, only external force needs to be applied to pull out the scribing blade 52.

[0039] This structure greatly simplifies the replacement process of the scribing blade 52. Without the aid of tools, the scribing blade 52 can be replaced within 1 minute, improving the efficiency of equipment operation. At the same time, the anti-slip texture of the elastic clamping block 54 can effectively prevent the scribing blade 52 from loosening or shifting during the scribing process, ensuring accurate scribing position and solving the problems of cumbersome replacement and low installation accuracy of existing scribing machine scribing components.

[0040] Example 7

[0041] Please see Figure 4 Based on Example 1, this embodiment further optimizes the material and performance of the scribing blade 52. The scribing blade 52 is made of cemented carbide, which has high hardness and high wear resistance, thus extending the service life of the scribing blade 52 and reducing the frequency of replacement. The blade part of the scribing blade 52 is quenched at a temperature of 850-900℃ for 1-2 hours, followed by tempering at a temperature of 200-250℃ for 2-3 hours. The quenching process can make the blade hardness reach HRC60-65, further improving the sharpness and wear resistance of the blade, ensuring that the scribing blade 52 can maintain a clear scribing effect during long-term use and avoiding blurring of scribing due to blade wear.

[0042] The marking blade 52 is suitable for marking various shoe upper materials such as leather, cloth, and synthetic materials. Its service life is 3-5 times longer than that of traditional high-speed steel marking blades, reducing the material costs for enterprises and minimizing equipment downtime caused by replacing marking blades, thereby improving overall production efficiency.

[0043] The working process of this utility model is as follows: When using the shoe upper marking machine with adjustable marking depth, first confirm that the bolts of the mounting frame 1 and the upper side plate 6 of the lateral movement component 2 are tight and not loose, the front and rear movement component 3 and the lower side plate 8 of the lateral movement component 2 are firmly welded, the guide slider 9 of the depth adjustment component 4 slides smoothly with the guide rail 7, and the marking blade 52 of the marking component 5 is stably engaged in the blade groove 53 by the elastic clamping block 54. Turn on the power of the equipment, start the control system, initialize the lateral drive motor 21, the front and rear drive motor 31 and the hydraulic cylinder 41, and ensure that each drive component has no abnormal noise and runs smoothly. Then, place the shoe upper to be marked on the equipment workbench (not marked in the figure, but can be used with matching). According to the shoe upper size and marking area requirements, fix the shoe upper with the workbench positioning fixture (not marked in the figure, but can be adapted to the design) to prevent the shoe upper from shifting during the marking process. At this time, the marking trajectory parameters (such as the lateral starting position and the front and rear path nodes) are preset by the control system to provide a reference for subsequent position adjustment.

[0044] The lateral drive motor 21 of the lateral movement component 2 is started. The output end of the motor drives the lateral movement screw 22 to rotate. The lateral screw nut 23 moves along the length of the screw through the thread transmission, thereby driving the front and rear movement component 3, the depth adjustment component 4 and the scribing component 5 to move left and right synchronously. The control system monitors the motor speed and screw displacement in real time. Combined with the preset parameters, the scribing knife 52 is accurately moved to the starting position of the lateral target on the shoe surface. The displacement accuracy can be controlled within ±0.02mm by the screw transmission characteristics.

[0045] Start the front and rear drive motor 31 of the front and rear moving component 3. The output end of the motor drives the front and rear moving screw 32 to rotate. The front and rear screw nut 33 drives the guide rail 7, depth adjustment component 4 and scribing component 5 to move in the front and rear direction. With the result of the lateral position adjustment, the scribing knife 52 is accurately aligned with the plane coordinate point of the area to be scribed on the shoe surface, and the two-dimensional positioning of the scribing position is completed to ensure that the subsequent scribing trajectory is completely consistent with the preset path.

[0046] By observing the scale 43 and pointer 44 of the depth adjustment component 4, and based on the shoe upper material (e.g., 0.5-0.8mm depth for thick leather, 0.1-0.3mm depth for thin fabric) and the marking process requirements, the control system sends a pressure command to the hydraulic cylinder 41. Changes in the hydraulic oil pressure within the cylinder 41 push the hydraulic rod 42 to extend and retract vertically, causing the marking component 5 to move up and down. When the pointer 44 precisely points to the target value on the scale 43 (scale accuracy 0.01mm), the hydraulic cylinder 41 stops, completing the marking depth setting. This avoids depth deviations caused by traditional experience-based adjustments and ensures consistent marking depth across the same batch of shoe uppers. After confirming that the position and depth adjustment are correct, the marking program is started through the control system: the lateral drive motor 21 and the front and rear drive motors 31 work together according to the preset trajectory parameters to drive the marking component 5 to move along the marking path on the shoe upper; at the same time, the depth adjustment component 4 keeps the hydraulic rod 42 in a stable position to ensure that the marking blade 52 always contacts the shoe upper at the set depth. The marking blade 52, made of hard alloy and quenched, forms clear and uniform markings on the shoe upper surface during the movement. The anti-slip texture on the surface of the rubber elastic clamping block 54 can prevent the marking blade 52 from loosening and avoid problems such as marking breaks or uneven depth.

[0047] After the marking operation is completed, turn off all drive components, remove the shoe upper, and check whether the marking trajectory meets the preset requirements and whether the depth is uniform. If there is a deviation, the parameters can be corrected through the control system and the operation can be restarted. The component reset program is started through the control system. The lateral movement component 2 and the forward and backward movement component 3 drive the marking component 5 back to the initial position of the equipment. The hydraulic cylinder 41 drives the hydraulic rod 42 to retract, so that the marking knife 52 rises to a safe height (to avoid collision with the worktable or subsequent shoe uppers). Then, the equipment power is turned off, and the single marking process is completed.

[0048] If the scribing blade 52 needs to be replaced (e.g., due to blade wear), simply pull the old scribing blade 52 outwards. The elastic clamping block 54 will automatically open due to the elasticity of the rubber. Insert the new scribing blade 52 into the blade groove 53, and the elastic clamping block 54 will automatically clamp it. Replacement can be completed without tools.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shoe upper marking machine with adjustable marking depth, characterized in that: The assembly includes a mounting frame (1), a lateral movement component (2), a front-to-back movement component (3), a depth adjustment component (4), and a scribing component (5). The lateral movement component (2) is fixedly mounted on the mounting frame (1) via upper side plates (6) on the left and right sides. The front-to-back movement component (3) is connected to the bottom of the lateral movement component (2) via lower side plates (8) on the front and back sides. The depth adjustment component (4) is connected to the front-to-back movement component (3) via guide sliders (9) and guide rails (7). The scribing component (5) is mounted on the bottom of the depth adjustment component (4). The lateral movement component (2), the front-to-back movement component (3), and the depth adjustment component (4) are used to drive the scribing component (5) to move left and right, front and back, and up and down, respectively, so as to achieve scribing at different positions and depths.

2. The shoe upper marking machine with adjustable marking depth according to claim 1, characterized in that: The lateral movement assembly (2) includes a lateral drive motor (21), a lateral movement screw (22), and a lateral screw nut (23). The lateral drive motor (21) is mounted on an upper side plate (6) on one side. The lateral movement screw (22) is connected to the output end of the lateral drive motor (21). The lateral screw nut (23) is threadedly engaged with the lateral movement screw (22). The side of the lateral movement screw (22) away from the lateral drive motor (21) is rotatably connected to the upper side plate (6) on the other side through a bearing.

3. The shoe upper marking machine with adjustable marking depth according to claim 1, characterized in that: The forward and backward moving assembly (3) includes a forward and backward drive motor (31), a forward and backward moving screw (32), and a forward and backward screw nut (33). The forward and backward drive motor (31) is mounted on the lower side plate (8). The forward and backward moving screw (32) is connected to the output end of the forward and backward drive motor (31). The forward and backward screw nut (33) is threadedly engaged with the forward and backward moving screw (32). The side of the forward and backward moving screw (32) away from the forward and backward drive motor (31) is rotatably connected to the lower side plate (8) on the other side through a bearing.

4. The shoe upper marking machine with adjustable marking depth according to claim 1, characterized in that: The depth adjustment component (4) includes a hydraulic cylinder (41) and a hydraulic rod (42). The hydraulic cylinder (41) is mounted on the guide slider (9). The hydraulic rod (42) is movably connected to the hydraulic cylinder (41), and the bottom of the hydraulic rod (42) is connected to the scribing component (5).

5. The shoe upper marking machine with adjustable marking depth according to claim 4, characterized in that: The depth adjustment component (4) also includes a scale (43) located on the surface of the hydraulic rod (42) and a pointer (44) located between the hydraulic cylinder (41) and the hydraulic rod (42), and the pointer (44) points to the corresponding scale (43) value. The scale accuracy of the scale (43) is 0.01mm, and the pointer (44) is made of stainless steel.

6. The shoe upper marking machine with adjustable marking depth according to claim 1, characterized in that: The scribing assembly (5) includes a scribing blade holder (51) and a scribing blade (52). The scribing blade holder (51) has a blade groove (53) at its bottom. An elastic clamping block (54) is provided inside the blade groove (53). The scribing blade (52) is detachably clamped in the blade groove (53) by the elastic clamping block (54).

7. A shoe upper marking machine with adjustable marking depth according to claim 6, characterized in that: The elastic clamping block (54) is made of rubber, and the surface of the elastic clamping block (54) is provided with anti-slip texture.

8. The shoe upper marking machine with adjustable marking depth according to claim 6, characterized in that: The scribing tool (52) is made of cemented carbide, and the cutting edge of the scribing tool (52) has been hardened.

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