Automatic leather stretching and drying line

Abstract

The application discloses a kind of leather automatic board drying line, including receiving support, the top of the receiving support is fixedly connected with two assembly supports, the symmetrical side of two The assembly support is equipped with assembly slot, the assembly slot inside is slidably connected with assembly tooth groove, the outer wall of the assembly support is movably sleeved with assembly sleeve block, and the top of the assembly sleeve block is fixedly connected with assembly support block.The application adjusts the height of blowing head by installing hydraulic cylinder to adapt to different thickness of leather, and combines the heating of installing electric heating conduit and the rotation of driving self-locking motor to drive blowing head, to realize uniform and accurate drying of leather, so that the device realizes clamping, stretching, moving and drying full automation linkage, effectively solves the core defects of low automation, process disconnection, poor adaptability and uneven drying of existing equipment, improves processing efficiency and leather quality, adapts to large-scale production demand, has reasonable structure, convenient operation, and reduces labor cost.

Description

Technical Field

[0001] This invention relates to the field of leather production technology, and more particularly to an automatic leather stretching and drying line. Background Technology

[0002] Stretching and drying is a crucial step in leather production. Its core task is to mechanically stretch and fix leather, which is still in a high-moisture state after tanning, and then dry it under controlled conditions. This process directly determines the smoothness, dimensional stability, and overall shape of the finished leather, making it an indispensable link in improving leather quality and added value. However, the stretching and drying equipment widely used in the industry currently suffers from significant technical defects. These devices have low levels of automation; from clamping and positioning the leather, applying tension and stretching, to unloading and transferring it after drying, many steps still rely on manual operation, resulting in low production efficiency and difficulty in ensuring consistent quality. Furthermore, the equipment design often treats stretching and drying as two separate steps, lacking precise and uniform control over the temperature and humidity in the drying chamber, affecting the drying effect and the inherent quality of the leather. In addition, existing equipment has poor adaptability; its limitations are particularly pronounced when facing diverse, small-batch market demands or when large-scale, continuous production is required, severely restricting production flexibility and overall efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic leather stretching and drying line.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic leather stretching and drying line, comprising a receiving bracket, two assembly brackets fixedly connected to the top of the receiving bracket, each of the two assembly brackets having an assembly groove on one symmetrical side, an assembly tooth groove slidably connected inside the assembly groove, an assembly block movably sleeved on the outer wall of the assembly bracket, an assembly support block fixedly connected to the top of the assembly block, an assembly shaft rotatably connected to one symmetrical side of the two assembly support blocks, an assembly frame fixedly connected between one end of the two assembly shafts, an assembly self-locking motor fixedly connected to the side wall of one of the assembly support blocks, the output shaft of the assembly self-locking motor passing through the assembly support block and fixedly connected to the other end of one of the assembly shafts, a moving component connected to one symmetrical side of the two assembly blocks, and an adjusting component connected to both the front and rear sides of the assembly frame; An installation housing is fixedly connected between the two sides of the outer wall of the receiving bracket. An installation horizontal plate is provided inside the installation housing. An installation opening is provided through the top of the installation horizontal plate. Two installation hydraulic cylinders are fixedly connected to the top. The piston end of the installation hydraulic cylinder passes through the installation housing and is fixedly connected to the installation horizontal plate. An installation component is connected to the bottom of the installation horizontal plate.

[0005] The movable component includes a movable self-locking motor fixedly connected to the side wall of the assembly block. The output shaft of the movable self-locking motor passes through the assembly block and extends into the assembly slot. A movable gear is fixedly connected to the output shaft of the movable self-locking motor. The movable gear meshes with its corresponding assembly slot. The movable self-locking motor drives the movable gear to rotate.

[0006] The adjustment assembly includes an adjustment groove formed on the surface of the assembly frame. Two adjustment sliders are slidably connected inside the adjustment groove. An adjustment stop and an adjustment support plate are fixedly connected to both ends of the adjustment sliders, respectively. An adjustment hydraulic rod is fixedly connected to the back of the adjustment support plate. An adjustment recess is fixedly connected to the piston end of the adjustment hydraulic rod. The adjustment hydraulic rod is used to push or pull the adjustment recess to move.

[0007] The top and bottom of the adjusting recess are both connected to a fixed hydraulic rod, and the piston end of the fixed hydraulic rod is fixedly connected to a fixed abutment block. An adjusting spring is movably sleeved on the outer wall of the fixed hydraulic rod. The two ends of the adjusting spring are fixedly connected to the side wall of the fixed abutment block and the side wall of the adjusting recess, respectively. The fixed hydraulic rod is used to push or pull the fixed abutment block to move.

[0008] An adjustable self-locking motor is fixedly connected to the side wall of the assembly frame. An adjustable bidirectional screw is fixedly connected to the output end of the adjustable self-locking motor. The end of the adjustable bidirectional screw passes through the assembly frame and is rotatably connected to the inner wall of the adjusting groove. Both adjusting sliders are threadedly connected to the outer wall of the adjustable bidirectional screw. The adjustable self-locking motor is used to drive the adjustable bidirectional screw to rotate.

[0009] The mounting assembly includes two mounting collars fixedly connected to the bottom of the mounting horizontal plate, a mounting horizontal tube rotatably sleeved between the two mounting collars, a plurality of mounting nozzles fixedly connected to the bottom of the mounting horizontal tube, and a mounting electric heating pipe fixedly connected between the bottoms of the two mounting collars, thereby heating the air.

[0010] An installation gear is fixedly sleeved on the outer wall of the mounting horizontal tube, and a self-locking motor is fixedly connected to the top of the mounting horizontal plate. The output shaft of the self-locking motor is fixedly connected to the drive gear, and the drive gear meshes with the installation gear. The self-locking motor drives the drive gear to rotate.

[0011] The present invention has the following beneficial effects: The movable component allows the movable self-locking motor to drive the movable gear to mesh with the assembly tooth groove, driving the assembly block and assembly frame to move, realizing the automatic transfer of leather after stretching without manual intervention, solving the problem of existing equipment relying on manual transfer. The adjustment component allows the adjustment self-locking motor to drive the adjustment bidirectional screw to rotate, adjusting the spacing of the adjustment concave parts to adapt to leathers of different sizes. At the same time, by fixing the hydraulic rod to clamp and adjusting the hydraulic rod to stretch, the leather is automatically clamped and stretched, avoiding the problems of low efficiency and uneven force caused by manual operation. The installation component allows the installation hydraulic cylinder to adjust the height of the blower to adapt to leathers of different thicknesses. Combined with the installation of electric heating pipes for heating and driving the self-locking motor to drive the blower to rotate, the leather is dried evenly and accurately. This device achieves fully automated linkage of clamping, stretching, moving and drying, effectively solving the core defects of existing equipment such as low automation, disconnected processes, poor adaptability and uneven drying, improving processing efficiency and leather quality, adapting to the needs of large-scale production, with a reasonable structure, convenient operation and reduced labor costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembly bracket, assembly tooth groove, assembly block, moving motor and moving gear structure of the automatic stretching plate drying production line of the present invention. Figure 3 This is a schematic diagram of the assembly support block, assembly shaft, assembly frame, assembly self-locking motor, adjusting slider, adjusting stop block, adjusting support plate, adjusting self-locking motor and adjusting bidirectional screw structure of the automatic stretching drying production line of the present invention. Figure 4 This is a schematic diagram of the adjusting hydraulic rod, adjusting recess, fixing hydraulic rod, and adjusting spring structure of the automatic stretching plate drying production line of the present invention. Figure 5 This is a schematic diagram of the internal structure of the mounting housing of the automatic stretching and drying production line of the present invention.

[0013] Legend: 1. Support bracket; 2. Assembly bracket; 3. Assembly tooth groove; 4. Assembly matching block; 5. Assembly support block; 6. Assembly rotating shaft; 7. Assembly frame; 8. Assembly self-locking motor; 9. Moving self-locking motor; 10. Moving gear; 11. Adjusting slider; 12. Adjusting stop block; 13. Adjusting support plate; 14. Adjusting self-locking motor; 15. Adjusting double-acting screw; 16. Adjusting hydraulic rod; 17. Adjusting recess; 18. Fixing hydraulic rod; 19. Installing outer shell; 20. Installing horizontal plate; 21. Installing hydraulic cylinder; 22. Installing collar; 23. Installing horizontal tube; 24. Installing electric heating pipe; 25. Installing gear; 26. Driving self-locking motor; 27. Driving gear; 28. Adjusting spring. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Reference Figure 1-5 This automatic leather stretching and drying line includes a receiving bracket 1. Two assembly brackets 2 are fixedly connected to the top of the receiving bracket 1. Each assembly bracket 2 has an assembly groove on one symmetrical side. Assembly teeth 3 are slidably connected inside the assembly grooves. Assembly blocks 4 are movably fitted onto the outer wall of each assembly bracket 2. Assembly support blocks 5 are fixedly connected to the top of each assembly block 4. Assembly shafts 6 are rotatably connected to one symmetrical side of each of the two assembly support blocks 5. An assembly frame 7 is fixedly connected between one end of each of the two assembly shafts 6. An assembly self-locking motor 8 is fixedly connected to the side wall of one of the assembly support blocks 5. The output shaft of the assembly self-locking motor 8 passes through the assembly frame 7. The support block 5 is fixedly connected to the other end of one of the assembly shafts 6. Each of the two assembly blocks 4 has a movable component connected to one of their opposite sides. The movable component is used to adjust the movement of the assembly blocks 4. The movable component includes a movable self-locking motor 9 fixedly connected to the side wall of the assembly block 4. The output shaft of the movable self-locking motor 9 passes through the assembly block 4 and extends into the assembly groove. The output shaft of the movable self-locking motor 9 is fixedly connected to a movable gear 10. The movable gear 10 meshes with its corresponding assembly tooth groove 3. The assembly self-locking motor 8 is used to drive the movable gear 10 to rotate.

[0016] The assembly frame 7 has adjustment components connected to both its front and rear sides. Each adjustment component includes an adjustment groove on the surface of the assembly frame 7. Two adjustment sliders 11 are slidably connected inside the adjustment groove. Adjustment blocks 12 and adjustment support plates 13 are fixedly connected to the two ends of each adjustment slider 11, respectively. An adjustment hydraulic rod 16 is fixedly connected to the back of the adjustment support plate 13. An adjustment recess 17 is fixedly connected to the piston end of the adjustment hydraulic rod 16. A fixed hydraulic rod 18 is fixedly connected to the top and bottom of the adjustment recess 17. A fixed clamping block is fixedly connected to the piston end of the fixed hydraulic rod 18. An adjustment spring 28 is movably sleeved on the outer wall of the fixed hydraulic rod 18. The two ends of the adjustment spring 28 are fixedly connected to the side wall of the fixed clamping block and the side wall of the adjustment recess 17, respectively. An adjustment self-locking motor 14 is fixedly connected to the side wall of the assembly frame 7. An adjustment bidirectional screw 15 is fixedly connected to the output end of the adjustment self-locking motor 14. The end of the adjustment bidirectional screw 15 passes through the assembly frame 7 and is rotatably connected to the inner wall of the adjustment groove. Both adjustment sliders 11 are threadedly connected to the outer wall of the adjustment bidirectional screw 15. The adjustment components achieve the purpose of adaptively stretching the material.

[0017] A mounting housing 19 is fixedly connected between the two sides of the outer wall of the support bracket 1. A mounting horizontal plate 20 is provided inside the mounting housing 19. The top of the mounting horizontal plate 20 has a through-hole for installation. Two mounting hydraulic cylinders 21 are fixedly connected to the top. The piston end of the mounting hydraulic cylinder 21 passes through the mounting housing 19 and is fixedly connected to the mounting horizontal plate 20. A mounting assembly is connected to the bottom of the mounting horizontal plate 20. The mounting assembly includes two mounting collars 22 fixedly connected to the bottom of the mounting horizontal plate 20. A mounting horizontal tube 23 is rotatably sleeved between the two mounting collars 22. Multiple mounting nozzles are fixedly connected to the bottom of the mounting horizontal tube 23. A mounting electric heating pipe 24 is fixedly connected between the bottom of the two mounting collars 22. A mounting gear 25 is fixedly sleeved on the outer wall of the mounting horizontal tube 23. A drive self-locking motor 26 is fixedly connected to the top of the mounting horizontal plate 20. A drive gear 27 is fixedly connected to the output shaft of the drive self-locking motor 26. The drive gear 27 meshes with the mounting gear 25. The mounting assembly is used to adjust the mounting gear 25 to rotate in both directions.

[0018] Working principle: When using the device, first check the connection status and operational stability of each component to ensure that the moving component, adjusting component, installation component, motors, and hydraulic rods are operating normally, thus avoiding the initial hidden dangers of low automation, disjointed processes, and poor adaptability of existing equipment. Then, according to the specifications of the leather to be processed, start the adjusting component to adjust the position of the stretching clamp, start the adjusting self-locking motor 14, drive the adjusting bidirectional screw 15 to rotate, so that the two adjusting sliders 11 slide relative to or towards each other along the adjusting groove, adjust the distance between the two adjusting recesses 17, and adapt to leather of different sizes.

[0019] Place both ends of the leather into the two adjusting recesses 17, activate the fixing hydraulic rod 18 to push the fixing block towards the leather, clamping and fixing the leather. The adjusting spring 28 acts as a buffer to prevent excessive clamping force from damaging the leather. No manual clamping is required, solving the problem of low efficiency caused by manual clamping in existing equipment. After clamping, activate the adjusting hydraulic rod 16 to pull the adjusting recesses 17 outward, causing the leather to stretch, thus achieving automatic stretching.

[0020] After the stretching is completed, the moving component is activated to adjust the position of the stretching plate to facilitate the linkage of the subsequent drying process. The moving self-locking motor 9 is activated to drive the moving gear 10 to rotate. The moving gear 10 meshes with the assembly tooth groove 3, driving the assembly block 4 to slide along the assembly bracket 2, thereby moving the assembly frame 7 and the stretched leather without the need for manual transfer.

[0021] According to the leather drying requirements, the installation components are activated for precise drying. The installation hydraulic cylinder 21 is activated to push the installation horizontal plate 20 up and down, adjusting the distance between the installation blower and the leather to adapt to leathers of different thicknesses. The installation electric heating pipe 24 is activated to heat the leather. At the same time, the external pipe fittings of the installation horizontal tube 23 are rotated to introduce hot air inward. The hot air is blown by the installation blower to the installation electric heating pipe 24 for reheating and contact with the leather surface. The drive self-locking motor 26 is activated to drive the drive gear 27 to rotate. The drive gear 27 meshes with the installation gear 25, driving the installation horizontal tube 23 to rotate, so that the installation blower blows air evenly, ensuring that the leather dries evenly.

[0022] If the leather stretching angle needs to be adjusted, start the self-locking motor 8 to drive the assembly shaft 6 to rotate, which in turn drives the assembly frame 7 and the leather to rotate, adjusting to the appropriate stretching and drying angle, further improving the stretching effect and drying efficiency. During operation, the self-locking function of the self-locking motor can fix the position of each component, ensuring the stability of the stretching, movement and drying process, and avoiding positional deviation that affects the processing quality.

[0023] After drying, all motors, hydraulic rods, and electric heating pipes are turned off. The fixed hydraulic rod 18 is then started in reverse to reset the fixed clamping block, loosen the leather, and complete the leather stretching drying operation. The entire process of clamping, stretching, moving, and drying is fully automated and linked, requiring minimal human intervention. This effectively solves the core defects of existing equipment, improves processing efficiency and leather quality, and meets the needs of large-scale production.

[0024] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 leather stretching and drying line, comprising a receiving bracket (1), characterized in that: The top of the receiving bracket (1) is fixedly connected to two assembly brackets (2). Each of the two assembly brackets (2) has an assembly groove on one side of its opposite side. An assembly tooth groove (3) is slidably connected inside the assembly groove. An assembly block (4) is movably sleeved on the outer wall of the assembly bracket (2). An assembly support block (5) is fixedly connected to the top of the assembly block (4). An assembly shaft (6) is rotatably connected to one side of each of the two assembly support blocks (5). An assembly frame (7) is fixedly connected between one end of each of the two assembly shafts (6). An assembly self-locking motor (8) is fixedly connected to the side wall of one of the assembly support blocks (5). The output shaft of the assembly self-locking motor (8) passes through the assembly support block (5) and is fixedly connected to the other end of one of the assembly shafts (6). A moving component is connected to one side of each of the two assembly blocks (4). An adjustment component is connected to both the front and rear sides of the assembly frame (7). An installation housing (19) is fixedly connected between the two sides of the outer wall of the receiving bracket (1). An installation horizontal plate (20) is provided inside the installation housing (19). An installation port is opened through the top of the installation horizontal plate (20). Two installation hydraulic cylinders (21) are fixedly connected to the top. The piston end of the installation hydraulic cylinder (21) passes through the installation housing (19) and is fixedly connected to the installation horizontal plate (20). An installation component is connected to the bottom of the installation horizontal plate (20).

2. The automatic leather stretching and drying line according to claim 1, characterized in that: The moving component includes a moving self-locking motor (9) fixedly connected to the side wall of the mounting block (4). The output shaft of the moving self-locking motor (9) passes through the mounting block (4) and extends into the mounting groove. The output shaft of the moving self-locking motor (9) is fixedly connected to a moving gear (10), which meshes with its corresponding mounting groove (3).

3. The automatic leather stretching and drying line according to claim 1, characterized in that: The adjustment assembly includes an adjustment groove formed on the surface of the assembly frame (7). Two adjustment sliders (11) are slidably connected inside the adjustment groove. An adjustment stop (12) and an adjustment support plate (13) are fixedly connected to both ends of the adjustment sliders (11). An adjustment hydraulic rod (16) is fixedly connected to the back of the adjustment support plate (13). An adjustment recess (17) is fixedly connected to the piston end of the adjustment hydraulic rod (16).

4. The automatic leather stretching and drying line according to claim 3, characterized in that: The top and bottom of the adjusting recess (17) are both connected to a fixed hydraulic rod (18). The piston end of the fixed hydraulic rod (18) is fixedly connected to a fixed abutment block. An adjusting spring (28) is movably sleeved on the outer wall of the fixed hydraulic rod (18). The two ends of the adjusting spring (28) are fixedly connected to the side wall of the fixed abutment block and the side wall of the adjusting recess (17), respectively.

5. The automatic leather stretching and drying line according to claim 4, characterized in that: An adjustable self-locking motor (14) is fixedly connected to the side wall of the assembly frame (7). An adjustable bidirectional screw (15) is fixedly connected to the output end of the adjustable self-locking motor (14). The end of the adjustable bidirectional screw (15) passes through the assembly frame (7) and is rotatably connected to the inner wall of the adjusting groove. Both adjusting sliders (11) are threadedly connected to the outer wall of the adjustable bidirectional screw (15).

6. The automatic leather stretching and drying line according to claim 1, characterized in that: The mounting assembly includes two mounting collars (22) fixedly connected to the bottom of the mounting plate (20), a mounting tube (23) is rotatably sleeved between the two mounting collars (22), a plurality of mounting nozzles are fixedly connected to the bottom of the mounting tube (23), and a mounting electric heating tube (24) is fixedly connected between the bottoms of the two mounting collars (22).

7. The automatic leather stretching and drying line according to claim 6, characterized in that: An installation gear (25) is fixedly sleeved on the outer wall of the mounting horizontal tube (23), and a self-locking motor (26) is fixedly connected to the top of the mounting horizontal plate (20). A drive gear (27) is fixedly connected to the output shaft of the self-locking motor (26), and the drive gear (27) meshes with the installation gear (25).

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