Mirror effect shoe upper leather polishing apparatus

Abstract

The utility model discloses a mirror effect vamp leather polishing equipment, include: concave processing platform, polishing support, adjust tensile structure and polishing support structure, the utility model relates to leather polishing technical field, adopt horizontal - vertical three -dimensional adjusting system, and the intelligent tensioning of leather is realized through screw thread drive mechanism in horizontal direction, and the dynamic compensation polishing pressure is utilized magnetic fine adjustment mechanism in vertical direction, and the evenness of contact is ensured with array type extrusion subassembly, avoid leather wrinkle or break, and contact pressure fluctuation is less than or equal to 5N, the dynamic compensation of the spacing of polishing cylinder is realized to the innovative introduction repulsion magnet pair, and the compensation accuracy reaches 0.1mm level, and the change of leather thickness can be responded in real time, and the vertical positioning is completed with electric hydraulic push rod, and the defects of traditional equipment polishing excessive or polishing deficiency are solved completely.

Description

Technical Field

[0001] This utility model relates to the field of leather polishing technology, specifically to a mirror-effect shoe upper leather polishing device. Background Technology

[0002] Traditional equipment employs a single-dimensional mechanical stretching method. In the horizontal direction, insufficient tension easily leads to wrinkles or excessive stretching causing deformation. The vertical sanding pressure lacks an adaptive adjustment mechanism, making it prone to sanding defects when facing thickness fluctuations of 0.8–1.2 mm. Frictional heat generation is a significant issue; traditional heat dissipation methods struggle to control the critical temperature of 50-60℃, easily causing collagen denaturation and surface hardening. Single-sided processing requires multiple clamping operations, resulting in a production cycle of 3–5 minutes per piece and equipment changeover time exceeding 30 minutes, making it unsuitable for small-batch flexible production. Fixed-gap sanding rollers cause contact pressure fluctuations of ±15N, with surface roughness Ra values ​​fluctuating between 0.3–0.8 μm, failing to meet high-end mirror-like finish requirements. These technical shortcomings severely restrict the processing precision and quality stability of leather products. Therefore, this project was developed to address these issues through in-depth research. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a mirror-effect shoe upper leather polishing device, comprising: a concave processing table, a polishing bracket, an adjusting and stretching structure, and a polishing support structure. The polishing bracket is mounted on the concave processing table, the adjusting and stretching structure is mounted on the concave processing table, and the polishing support structure is mounted on the polishing bracket. The polishing support structure includes: a pair of electric hydraulic push rods, a concave support block, two pairs of lifting bearing blocks, multiple lifting limit shafts, four pairs of repulsive magnets, a pair of polishing rollers, two pairs of extrusion and diversion shafts, a polishing drive motor, two pairs of spider web diversion pipes, a cooling box, a cooler, a radiator, a diversion air pump, a diversion heat dissipation pipe, and multiple partition plates.

[0004] A pair of electro-hydraulic push rods are mounted parallel to each other on the grinding bracket. A concave support block is mounted on the pushing end of the pair of electro-hydraulic push rods. Two pairs of lifting extrusion grooves are provided on the concave support block and the concave processing table. Two pairs of lifting bearing blocks are movably inserted into the inner sides of the two pairs of lifting extrusion grooves. Multiple lifting limit shafts are respectively inserted into the inner sides of the two pairs of lifting extrusion grooves and movably inserted into the two pairs of lifting bearing blocks. Four pairs of repulsive magnets are respectively mounted on the two pairs of lifting extrusion grooves and the two pairs of lifting bearing blocks. A pair of grinding rollers are respectively mounted on... On the two pairs of lifting bearing blocks, a plurality of partition plates are evenly inserted into the inner side of a pair of grinding rollers. Two pairs of extrusion guide tubes are respectively inserted into a pair of grinding rollers. Two pairs of spider web diverter tubes are respectively inserted into two pairs of extrusion guide tubes. The cooling box is installed on the concave processing table. The cooler is installed inside the cooling box. The radiator is installed outside the cooling box. The diversion air pump is installed on the cooling box. The diversion heat dissipation pipe is connected to the diversion air pump and is connected to the two pairs of extrusion guide tubes.

[0005] Preferably, the adjusting and stretching structure includes: two pairs of horizontal telescopic L-shaped blocks, a pair of horizontal adjusting drive motors, a pair of stretching gear sets, two pairs of horizontal stretching threaded rod sets, two pairs of horizontal stretching threaded tube sets, a pair of drive rollers, two pairs of extrusion discs, a pair of stretching drive motors, and multiple extrusion components.

[0006] The concave processing table has two pairs of horizontal telescopic grooves. Two pairs of horizontal telescopic L-shaped blocks are respectively movably inserted into the inner side of the two pairs of horizontal telescopic grooves. A pair of horizontal adjustment drive motors are respectively installed on the concave processing table. Two pairs of horizontal tension threaded rod assemblies are respectively inserted into the two pairs of horizontal telescopic grooves. Two pairs of horizontal tension threaded tube assemblies are respectively inserted into the two pairs of horizontal telescopic L-shaped blocks. A pair of tension gear assemblies are respectively installed on the pair of horizontal adjustment drive motors and the two pairs of horizontal tension threaded rod assemblies. A pair of drive rollers are respectively installed on the two pairs of horizontal telescopic L-shaped blocks. Two pairs of extrusion discs are respectively installed on the pair of drive rollers. A pair of stretching drive motors are installed on the pair of horizontal telescopic L-shaped blocks, and their drive ends are respectively connected to the pair of drive rollers. Multiple extrusion components are respectively installed on the two pairs of extrusion discs.

[0007] Preferably, the extrusion assembly includes: an extrusion L-shaped block, an extrusion electro-hydraulic push rod, and an extrusion rubber block;

[0008] The extrusion disc has multiple lifting extrusion slots. The extrusion L-shaped block is movably inserted into the inner side of the lifting extrusion slot. The extrusion electro-hydraulic push rod is installed inside the lifting extrusion slot, and the pushing end of the extrusion electro-hydraulic push rod is connected to the extrusion L-shaped block. The extrusion rubber block is installed on the extrusion L-shaped block.

[0009] Preferably, a tightness sensor is provided on the concave processing table.

[0010] Preferably, temperature sensors are provided on the inner sides of the cooling box and the pair of grinding rollers.

[0011] Preferably, a unidirectional drainage plate is provided between the plurality of partition plates.

[0012] Beneficial effects

[0013] This invention provides a mirror-effect shoe upper leather polishing device. It offers the following advantages: This mirror-effect shoe upper leather polishing device employs a horizontal-vertical three-dimensional adjustment system. Horizontally, a threaded transmission mechanism achieves intelligent leather tensioning, while vertically, a magnetic fine-tuning mechanism dynamically compensates for polishing pressure. Combined with an array-type extrusion assembly, it ensures uniform contact, preventing leather wrinkles or breakage, with contact pressure fluctuations ≤ ±5N. It innovatively introduces a pair of repulsive magnets to achieve dynamic compensation of the polishing roller spacing, with a compensation accuracy of 0.1mm, responding in real-time to changes in leather thickness. This, combined with an electric hydraulic push rod, completes vertical positioning, completely solving the defects of over-polishing or under-polishing in traditional equipment. A spiderweb-like airflow cooling system is constructed to cool... The system comprises a closed-loop temperature control system consisting of a heat sink and a flow divider pump. Combined with unidirectional flow deflectors, it achieves directional cooling of the polishing area, keeping the surface temperature below 50℃. When the temperature exceeds the 45℃ threshold, an enhanced cooling mode is automatically activated to prevent protein denaturation. The symmetrically arranged polishing rollers support simultaneous double-sided polishing, allowing for processing of both sides in a single feed, increasing production efficiency by over 50%. The modular design enables rapid changeover in 10 minutes, perfectly adapting to the needs of small-batch, multi-variety production. A spiderweb-like airflow field creates a stable laminar flow of 0.5m / s, promptly removing polishing debris and carrying away heat, stabilizing the surface roughness Ra value at the 0.2μm level and significantly improving the consistency of the mirror finish. Attached Figure Description

[0014] Figure 1 This is a front sectional view of the mirror effect shoe upper leather polishing equipment described in this utility model.

[0015] Figure 2 This is a side sectional view of the mirror effect shoe upper leather polishing equipment described in this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of a mirror-effect shoe upper leather polishing device according to the present invention.

[0017] Figure 4 This is a rear cross-sectional view of the mirror effect shoe upper leather polishing equipment described in this utility model.

[0018] In the diagram: 1. Concave machining table; 2. Grinding support;

[0019] 11. Electro-hydraulic push rod; 12. Concave support block; 13. Lifting bearing block; 14. Lifting limit shaft; 15. Repulsive magnet; 16. Grinding roller; 17. Extrusion diversion shaft tube; 18. Spider web diversion tube; 19. Cooling box;

[0020] 21. Horizontal telescopic L-shaped block; 22. Horizontal adjustment drive motor; 23. Tension gear set; 24. Horizontal tension threaded rod set; 25. Horizontal tension threaded tube set; 26. Drive roller; 27. Extrusion disc; 28. Tension drive motor. Detailed Implementation

[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0023] Example

[0024] Please see Figure 1-4 Existing equipment mostly uses single-dimensional mechanical stretching, making it difficult to achieve balanced horizontal and vertical three-dimensional tension control of leather. Insufficient horizontal stretching easily leads to leather wrinkles, while excessive stretching causes deformation or even breakage. The vertical sanding pressure lacks an adaptive adjustment mechanism, and when faced with variations in leather thickness (such as the 0.8-1.2mm fluctuation range for microfiber leather), it is prone to over-sanding or under-polishing defects. Frictional heat generation is a significant problem during polishing, and traditional air-cooling methods have heat dissipation blind spots. When the temperature of the sanding area exceeds the leather's tolerance threshold (usually 50-60℃), collagen denaturation leads to surface hardening, decreased gloss, and even irreversible scorching marks.

[0025] Therefore, this application protects a mirror effect shoe upper leather polishing device, which tightens the leather by adjusting the stretching structure, adjusts the polishing position at the same time, and polishes the leather at both ends by the polishing support structure.

[0026] Furthermore, the leather is tightened by adjusting the stretching structure. A pair of electric hydraulic push rods 11 extend and retract, causing the concave support blocks 12 to rise and fall stably. The concave support blocks 12 and the repulsive magnets 15 inside the lifting extrusion grooves on the concave processing sleeve repel each other, respectively driving the two pairs of lifting bearing blocks 13. This fine-tunes the distance between the two pairs of lifting bearing blocks 13, which in turn drives a pair of polishing rollers 16, causing them to extend and retract relative to each other. This changes the position between the two pairs of polishing rollers 16, and through magnetic repulsion, fine-tunes are made according to the thickness of different leather locations, avoiding... This method avoids the damage to leather caused by grinding and squeezing. Multiple lifting limit shafts 14 vertically limit the lifting bearing block 13. A cooler cools the air inside the cooling box, and a radiator dissipates the heat. A diversion pump draws the low-temperature gas inside the cooling box to the inside of a pair of extrusion diversion shafts 17. The pair of extrusion diversion shafts 17 inflates and draws air into a pair of spider web diversion pipes 18. Multiple partitions divide the grinding rollers 16 into multiple spaces, and low-temperature gas is drawn between the partitions to quickly cool the grinding rollers 16, thereby rapidly cooling and dissipating the high temperature generated during the grinding process.

[0027] Furthermore, the horizontal adjustment drive unit drives the tension gear set, causing the horizontal telescopic L-shaped block to slide along the horizontal telescopic groove. This, combined with the threaded transmission of the horizontal tension threaded rod assembly and threaded tube assembly, achieves horizontal tensioning of the leather. The extrusion assembly on the extrusion disc (extrusion L-shaped block + electro-hydraulic push rod 11 + extrusion rubber block) forms three-dimensional tension control through vertical extrusion. A tension sensor monitors the leather tension in real time, forming a closed-loop control to prevent leather deformation or breakage due to overstretching. The electro-hydraulic push rod 11 drives the concave support block 12 to rise and fall. Through the cooperation of the lifting bearing block 13 and the lifting limit shaft 14, the grinding roller 1... The vertical movement accuracy is 6. The pair of repulsive magnets 15 installed inside the lifting and pressing groove generates a reverse magnetic force. When the leather thickness changes, the magnetic repulsion automatically adjusts the spacing of the lifting bearing blocks 13, achieving dynamic compensation of the polishing pressure. The compensation range is determined by the magnetic strength of the magnets and the stroke of the lifting limit shaft 14. The cooler cools the medium in the cooling box, the radiator maintains the system's thermal balance, and the diversion pump delivers low-temperature gas through the spider web diversion pipe 18 to the pressing guide shaft pipe 17. Finally, directional cooling of the polishing area is achieved through the unidirectional guide plates between the partition plates, avoiding leather burns caused by high temperatures. The pair of repulsive magnets 15 form a non-contact force feedback. Compared to traditional spring buffers, the response speed is increased by 300%, and it can compensate for thickness changes of 0.1mm in real time, significantly reducing the risk of over-polishing; Intelligent temperature control: The polishing roller 16 has an embedded temperature sensor linked to the cooling system. When the temperature exceeds the 45℃ threshold, it automatically activates the enhanced cooling mode to ensure that the leather surface temperature is always below 50℃, avoiding protein denaturation; Double-sided synchronous polishing: The symmetrically arranged polishing rollers 16 can process both sides of the leather simultaneously, completing double-sided polishing in a single feed, increasing production efficiency by more than 50%; Quick changeover capability: Modular design of the horizontal stretching system and the vertical polishing system. It supports process switching for different specifications of leather within 10 minutes, adapting to the needs of small-batch, multi-variety production; Spider web-like airflow field: The spider web-like diverter pipe 18 and the extrusion guide shaft pipe 17 form a three-dimensional cooling network, which, together with the airflow guidance of the unidirectional guide plate, forms a stable laminar flow of 0.5m / s in the polishing area, timely removing abrasives and carrying away heat, so that the surface roughness Ra value can be stably controlled below 0.2μm; Uniform tension distribution: The extrusion components adopt an array layout, and each extrusion unit independently controls the pressure. The algorithm compensates for the thickness difference of each point of the leather, ensuring that the polishing contact pressure fluctuation is ≤±5N, significantly improving the consistency of the mirror effect.

[0028] In summary, the overall design features a horizontal-vertical three-dimensional tension control structure. A horizontal adjustment drive, coupled with a threaded transmission mechanism, enables intelligent leather tensioning. The extrusion assembly ensures uniform contact through an array of pressure units. The innovative grinding support structure employs a magnetic fine-tuning mechanism, utilizing 15 pairs of repulsive magnets to dynamically compensate for the spacing between the grinding rollers 16, achieving a compensation accuracy of 0.1mm. This, combined with an electro-hydraulic push rod 11, completes vertical positioning. The cooling system constructs a spiderweb-like airflow field, forming a closed-loop temperature control system through a cooler-radiator-distribution pump. Unidirectional cooling plates further facilitate directional cooling of the grinding area, keeping the surface temperature below 50℃. The symmetrical layout of the dual rollers supports simultaneous double-sided polishing, increasing production efficiency by 50% and maintaining a surface roughness Ra value stable at 0.2μm. The equipment integrates tension and temperature sensors, forming a closed-loop control of process parameters, making it particularly suitable for mirror-finish processing of fine materials such as microfiber leather. It also possesses the potential for rapid changeover and intelligent upgrades.

[0029] 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 mirror-effect shoe upper leather polishing device, comprising: A concave machining table, a grinding bracket, an adjusting and stretching structure, and a grinding support structure are provided. The grinding bracket is mounted on the concave machining table, the adjusting and stretching structure is mounted on the concave machining table, and the grinding support structure is mounted on the grinding bracket. The grinding support structure comprises: a pair of electric hydraulic push rods, a concave support block, two pairs of lifting bearing blocks, multiple lifting limit shafts, four pairs of repulsive magnets, a pair of grinding rollers, two pairs of extrusion and diversion shafts, a grinding drive motor, two pairs of spider web diversion pipes, a cooling box, a cooler, a radiator, a diversion air pump, a diversion heat dissipation pipe, and multiple partition plates. A pair of electro-hydraulic push rods are mounted parallel to each other on the grinding bracket. A concave support block is mounted on the pushing end of the pair of electro-hydraulic push rods. Two pairs of lifting extrusion grooves are provided on the concave support block and the concave processing table. Two pairs of lifting bearing blocks are movably inserted into the inner sides of the two pairs of lifting extrusion grooves. Multiple lifting limit shafts are respectively inserted into the inner sides of the two pairs of lifting extrusion grooves and movably inserted into the two pairs of lifting bearing blocks. Four pairs of repulsive magnets are respectively mounted on the two pairs of lifting extrusion grooves and the two pairs of lifting bearing blocks. A pair of grinding rollers are respectively mounted on... On the two pairs of lifting bearing blocks, a plurality of partition plates are evenly inserted into the inner side of a pair of grinding rollers. Two pairs of extrusion guide tubes are respectively inserted into a pair of grinding rollers. Two pairs of spider web diverter tubes are respectively inserted into two pairs of extrusion guide tubes. The cooling box is installed on the concave processing table. The cooler is installed inside the cooling box. The radiator is installed outside the cooling box. The diversion air pump is installed on the cooling box. The diversion heat dissipation pipe is connected to the diversion air pump and is connected to the two pairs of extrusion guide tubes.

2. The mirror-effect shoe upper leather polishing equipment according to claim 1, characterized in that, The adjustable tensioning structure includes: two pairs of horizontal telescopic L-shaped blocks, one pair of horizontal adjustment drive motors, one pair of tensioning gear sets, two pairs of horizontal tensioning threaded rod sets, two pairs of horizontal tensioning threaded tube sets, one pair of drive rollers, two pairs of extrusion discs, one pair of tensioning drive motors, and multiple extrusion components. The concave processing table has two pairs of horizontal telescopic grooves. Two pairs of horizontal telescopic L-shaped blocks are respectively movably inserted into the inner side of the two pairs of horizontal telescopic grooves. A pair of horizontal adjustment drive motors are respectively installed on the concave processing table. Two pairs of horizontal tension threaded rod assemblies are respectively inserted into the two pairs of horizontal telescopic grooves. Two pairs of horizontal tension threaded tube assemblies are respectively inserted into the two pairs of horizontal telescopic L-shaped blocks. A pair of tension gear assemblies are respectively installed on the pair of horizontal adjustment drive motors and the two pairs of horizontal tension threaded rod assemblies. A pair of drive rollers are respectively installed on the two pairs of horizontal telescopic L-shaped blocks. Two pairs of extrusion discs are respectively installed on the pair of drive rollers. A pair of stretching drive motors are installed on the pair of horizontal telescopic L-shaped blocks, and their drive ends are respectively connected to the pair of drive rollers. Multiple extrusion components are respectively installed on the two pairs of extrusion discs.

3. The mirror-effect shoe upper leather polishing equipment according to claim 2, characterized in that, The extrusion assembly includes: an extrusion L-shaped block, an extrusion electro-hydraulic push rod, and an extrusion rubber block; The extrusion disc has multiple lifting extrusion slots. The extrusion L-shaped block is movably inserted into the inner side of the lifting extrusion slot. The extrusion electro-hydraulic push rod is installed inside the lifting extrusion slot, and the pushing end of the extrusion electro-hydraulic push rod is connected to the extrusion L-shaped block. The extrusion rubber block is installed on the extrusion L-shaped block.

4. The mirror-effect shoe upper leather polishing equipment according to claim 3, characterized in that, A tightness sensor is installed on the concave processing table.

5. The mirror-effect shoe upper leather polishing equipment according to claim 4, characterized in that, Temperature sensors are installed on the inner sides of the cooling box and the pair of grinding rollers.

6. The mirror-effect shoe upper leather polishing equipment according to claim 5, characterized in that, One-way drainage plates are provided between the multiple partition plates.

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