Waterproof buff gobo dyeing automatic feeding device and method

Abstract

The application relates to a waterproof cow bago dyeing automatic feeding device and method, and relates to the field of waterproof cow bago dyeing. The device comprises a fixing seat, the upper end of the fixing seat is provided with an immersion dyeing equipment, the interior of the immersion dyeing equipment is provided with an immersion dyeing frame, and the left and right sides of the immersion dyeing equipment are both provided with feeding units located above the fixing seat. The fixing assembly used in the application can tightly fix multiple two-layer leathers stacked in an up-down interval, thereby increasing the immersion dyeing quantity of the two-layer leathers, improving the immersion dyeing efficiency, increasing the stability of the two-layer leathers in the feeding and immersion dyeing process, preventing the two-layer leathers from being wrinkled, ensuring that different two-layer leathers can be evenly and effectively immersed in the dyeing liquid in an interval placement mode, avoiding the accumulation, reducing the contact interference between the two-layer leathers, ensuring the consistency of the dyeing quality and the dyeing speed of different two-layer leathers, avoiding the color difference or color spots and other phenomena, and thereby improving the overall dyeing effect.

Description

Technical Field

[0001] This invention relates to the field of dyeing waterproof boba, specifically to an automatic feeding device and method for dyeing waterproof boba. Background Technology

[0002] Waterproof nubuck is a specially treated cowhide material, typically referring to suede with waterproof properties. A single cowhide can generally be divided into top-grain leather and split leather. Split leather lies beneath the top-grain leather and has a rougher surface, requiring sanding and finishing processes to improve its appearance. It is commonly used to make belts, carpet mats, and furniture leather. Dyeing allows split leather to meet the diverse needs of different markets and products. The dyeing process for split leather generally includes preparation, pretreatment, dye solution preparation, leather fixing, dyeing, and post-treatment. Immersion dyeing, which involves soaking the split leather in a dye solution within dyeing equipment, is one of the most common dyeing methods.

[0003] However, the following problems still exist in the process of feeding split leather into the dyeing equipment for dyeing:

[0004] (1) Although the method of feeding and dyeing one piece at a time can ensure the dyeing quality of the second layer leather, the efficiency is not ideal. The method of feeding and dyeing multiple pieces at the same time is efficient, but the second layer leather is prone to accumulation or wrinkles, which can lead to color difference or uneven dyeing during the dyeing process. It is difficult to keep the dyeing quality and dyeing speed consistent, and the overall dyeing efficiency needs to be improved.

[0005] (2) Since different second-layer leathers may have different shapes and sizes and the second-layer leather is relatively soft, the dyeing effect of different second-layer leathers may vary. At the same time, second-layer leathers soaked in dye solution are prone to bending and deformation, resulting in different dyeing effects at different locations on the same second-layer leather, and the dyeing uniformity and integrity are not ideal.

[0006] Therefore, in order to solve the problems existing in the feeding process of split leather, the present invention provides an automatic feeding device for waterproof nubuck dyeing. Summary of the Invention

[0007] This invention provides an automatic feeding device for dyeing waterproof nubuck, including a fixed base, a dyeing device mounted on the upper end of the fixed base, a dyeing frame inside the dyeing device, and feeding units located above the fixed base on both the left and right sides of the dyeing device. Each feeding unit includes a fixing component for fixing the second layer of leather. The fixing component includes two square frames distributed vertically, each square frame having evenly arranged square holes. Support columns are connected between the four corners of the upper and lower square frames. Square plates evenly arranged vertically are fitted around the support columns. Rotating blocks, rotatably mounted outside the support columns, are mounted on the upper ends of the square plates. A threaded telescopic rod is mounted on the side of the rotating block away from the center of the square frame, and a fixing device is rotatably mounted at the telescopic end of the threaded telescopic rod. The block consists of a fixed block and a rotating block connected by a guide telescopic rod symmetrical about the threaded telescopic rod. A pin is installed on the upper end of the fixed block, and an installation rod is installed on the upper end of the fixed block on the side of the pin near the threaded telescopic rod. A limit rod is installed on the upper end of the fixed block corresponding to the position of the guide telescopic rod. A movable block is sleeved on the outside of the installation rod. A connecting spring sleeved on the outside of the installation rod connects the movable block and the upper end of the installation rod. A limit hole is opened on the lower end of the movable block away from the installation rod, which cooperates with the limit rod. The feeding unit also includes an electric hoist installed above the fixed component. Electric sliders are installed at both the front and rear ends of the electric hoist. The electric sliders on the left and right sides are slidably installed on the same transverse guide rail. The transverse guide rail is installed on the upper end of the fixed base through a support frame.

[0008] In one possible implementation, each of the rotating blocks has insertion holes evenly arranged around the corresponding support column, and the upper end of the side of the square plate away from the center of the square frame is connected to the corresponding insertion hole through an insertion rod.

[0009] In one possible implementation, elastic telescopic plates are installed in the middle of the outer sides of the square frame, and strip-shaped grooves are opened on the inner walls of the dyeing frame to slide up and down with the telescopic ends of the corresponding elastic telescopic plates. A funnel-shaped protective frame is installed at the upper end of the dyeing frame.

[0010] In one possible implementation, a cross is installed between the upper ends of the fixed section of the upper elastic telescopic plate, the cross is located at the lower end of the annular plate, the lower end of the annular plate has an annular groove, and the upper ends of the transverse and longitudinal sections of the cross are each equipped with an arc-shaped rod that is slidably connected to the annular groove.

[0011] In one possible implementation, a rotating column is installed at the middle of the upper end of the cross, the upper end of the rotating column is connected to the output shaft of the motor, the motor is mounted on the upper end of the annular plate via a support, and a protective shell is installed on the upper end of the support to cover the motor.

[0012] In one possible implementation, the upper end face of the protective shell and the upper end faces of the front and rear sides of the annular plate are connected to the feeding wire ropes provided at the lower end of the corresponding electric hoist. The left and right sides of the feeding wire rope in the middle are connected to the upper end faces of the transverse sections corresponding to the cross, respectively, with inclined auxiliary wire ropes. The upper end of the dyeing equipment is hinged with two rectangular doors that are symmetrically arranged on the left and right. The rectangular doors are provided with semi-circular through holes for avoiding the wire ropes.

[0013] In one possible implementation, the rotating column has circumferentially evenly distributed arc-shaped grooves on its outer side, a control rod is provided on the front side of the rotating column, the control rod is slidably connected to the vertical plate installed at the lower end of the support, an arc-shaped block that cooperates with the arc-shaped groove is installed at the rear end of the control rod, and a telescopic spring sleeved on the outside of the control rod is connected between the arc-shaped block and the vertical plate.

[0014] In one possible implementation, the front end of the electric slider in the right-side feeding unit and the rear end of the electric slider in the left-side feeding unit are both equipped with alignment plates, and a baffle is installed on the upper end of the support frame opposite to the alignment plates.

[0015] An automatic feeding method for waterproof nubuck dyeing, using an automatic feeding device for waterproof nubuck dyeing, includes the following steps:

[0016] S1. Preparation stage: Select suitable split cowhide as the base material and clean the leather to remove impurities and grease from its surface.

[0017] S2. Pre-treatment: The second layer of leather undergoes certain physical treatments, such as sanding, stretching, and smoothing.

[0018] S3. Preparation of dye solution: Select the appropriate dye according to the required color, weigh and measure it, pour the dye into the dyeing frame in the dyeing equipment, add an appropriate amount of water according to the ratio, and stir the dye thoroughly.

[0019] S4. Secure the leather: Secure two layers of leather placed at intervals from bottom to top using securing components.

[0020] S5. Loading and Dyeing: The fixed component and the second layer of leather are moved into the dyeing frame inside the dyeing equipment by the cooperation of the electric hoist and the electric slider, and the second layer of leather is fully immersed in the dye solution in the dyeing frame for dyeing. At the same time, the dyeing equipment needs to be closed and the temperature, pressure and time parameters of the dyeing equipment need to be set as required.

[0021] S6. Post-processing: After the dyeing is completed, open the dyeing equipment, remove the fixing components and the dyed second layer leather from the dyeing equipment, and use existing equipment to dry, coat and cut the dyed second layer leather.

[0022] The beneficial effects of this invention are:

[0023] 1. The fixing component used in this invention can tighten and fix multiple layers of split leather stacked at intervals, which not only increases the number of split leathers that can be dyed and improves the dyeing efficiency, but also increases the stability of the split leathers during the dyeing process and prevents wrinkles from forming. At the same time, the spaced placement method can also ensure that different split leathers can be evenly and effectively dyed in the dye solution, avoiding accumulation and reducing contact interference between split leathers. This ensures the consistency of dyeing quality and dyeing speed for different split leathers, avoids color differences or spots, and thus improves the overall dyeing effect.

[0024] 2. The fixing components used in this invention can flexibly change the fixing points of the split leather, and fix split leather of different shapes and sizes in the same stable manner, and ensure that the split leather is always in a taut state, so as to meet the fixing needs of different split leathers, increase the application range of the fixing components, and ensure that every area on the split leather can be fully and effectively dyed, thereby improving the dyeing uniformity and integrity of split leathers of different shapes and sizes.

[0025] 3. The present invention uses two feeding units on the left and right to continuously feed different batches of second-layer leather into the dyeing equipment for dyeing operations. The continuous feeding and dyeing method can greatly shorten the feeding time and improve the overall dyeing efficiency.

[0026] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the waterproof boob dyeing automatic feeding device and method provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the process flow for a waterproof boob dyeing method according to the present invention.

[0028] Figure 2 This is a front-view stereoscopic structural diagram of the present invention.

[0029] Figure 3 This is a three-dimensional structural diagram of the dyeing frame and the protective frame of the present invention.

[0030] Figure 4 This is a three-dimensional structural diagram of the electric slider, alignment plate, and baffle of the present invention.

[0031] Figure 5 This is a three-dimensional structural diagram of the fixing component of the present invention.

[0032] Figure 6 This is a three-dimensional structural diagram of the annular plate, cross, and motor of the present invention.

[0033] Figure 7 This is a three-dimensional structural diagram of the rotating column, arc-shaped block, and arc-shaped groove of the present invention.

[0034] Figure 8 This is a three-dimensional structural diagram of the square frame, rotating block, and threaded telescopic rod of the present invention.

[0035] Figure 9 This is a three-dimensional structural diagram of the fixed block, the movable block, and the pin of the present invention.

[0036] In the diagram: 1. Fixed base; 2. Dyeing equipment; 21. Dyeing frame; 3. Feeding unit; 31. Square frame; 311. Electric hoist; 312. Electric slider; 313. Transverse guide rail; 314. Alignment plate; 315. Baffle; 316. Elastic telescopic plate; 317. Strip groove; 318. Protective frame; 319. Cross; 32. Support column; 321. Annular plate; 322. Arc rod; 323. Rotating column; 324. Arc groove 325. Control lever; 326. Arc-shaped block; 327. Telescopic spring; 328. Motor; 329. Feeding wire rope; 33. Square plate; 331. Auxiliary wire rope; 332. Rectangular door; 34. Rotating block; 35. Insertion hole; 36. Insert rod; 37. Threaded telescopic rod; 38. Fixing block; 381. Insert pin; 382. Mounting rod; 383. Limiting rod; 384. Moving block; 385. Connecting spring; 39. Guide telescopic rod. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Please see Figure 1 , Figure 2 and Figure 3 An automatic feeding device for waterproof boob dyeing includes a fixed base 1, an immersion dyeing device 2 is provided on the upper end of the fixed base 1, an immersion dyeing frame 21 is provided inside the immersion dyeing device 2, and feeding units 3 are provided on the left and right sides of the immersion dyeing device 2 above the fixed base 1.

[0039] Please see Figure 5 , Figure 8 and Figure 9 The feeding unit 3 includes a fixing assembly for fixing the second layer of leather. The fixing assembly includes two square frames 31 distributed vertically. The square frames 31 have evenly arranged square holes. Support columns 32 are connected between the four corners of the upper and lower square frames 31. Square plates 33 evenly arranged vertically are fitted around the support columns 32. Rotating blocks 34 are rotatably mounted on the upper end of each square plate 33 outside the support columns 32. Insertion holes 35 are evenly arranged around the support columns 32 on the rotating blocks 34. The upper end of the square plate 33 away from the center of the square frames 31 is inserted into the corresponding insertion hole 35 through an insertion rod 36. A threaded telescopic rod 37 is installed on the side of the rotating block 34 away from the center of the square frames 31. A fixed block 38 is rotatably mounted on the telescopic end of the rod 37. A guide telescopic rod 39 symmetrical about the threaded telescopic rod 37 is connected between the fixed block 38 and the rotating block 34. A pin 381 is installed on the upper end of the fixed block 38. An installation rod 382 is installed on the upper end of the fixed block 38 on the side of the pin 381 near the threaded telescopic rod 37. A limit rod 383 is installed on the upper end of the fixed block 38 corresponding to the position of the guide telescopic rod 39. A movable block 384 is sleeved on the outside of the installation rod 382. A connecting spring 385 sleeved on the outside of the installation rod 382 is connected between the movable block 384 and the upper end of the installation rod 382. A limit hole that cooperates with the limit rod 383 is opened on the lower end of the movable block 384 away from the installation rod 382.

[0040] In practice, the first step is to select a suitable second-layer cowhide as the base material and clean the leather using existing cleaning equipment to remove impurities and grease from its surface.

[0041] The second step involves physical treatment of the split leather, such as sanding, stretching, and smoothing it using existing equipment.

[0042] Step 3: Select the appropriate dye according to the required color, weigh and measure it, pour the dye into the dyeing frame 21 in the dyeing equipment 2, add an appropriate amount of water according to the ratio, and stir the dye thoroughly to make it uniform, so as to obtain the required dye solution.

[0043] Step 4: First, the second-layer leather is fed into the dyeing equipment 2 via the feeding unit 3 on the right for dyeing. During this process, multiple pieces of second-layer leather are first fixed by the fixing components on the right. In the initial state, the rotating block 34 drives the corresponding threaded telescopic rod 37, guide telescopic rod 39, and fixing block 38 to face away from the center of the square frame 31. The moving block 384 compresses the connecting spring 385 along the mounting rod 382 and cooperates with the limiting rod 383 through the limiting hole. In the process of fixing the first piece of second-layer leather, the rotating block 34 located at the bottom needs to be rotated around one of the support columns 32, so that it drives the threaded telescopic rod 37, guide telescopic rod 39, fixing block 38, pin 381, mounting rod 382, ​​moving block 384, and limiting rod 383 to rotate synchronously towards the center of the square frame 31. Then, one corner of the second-layer leather can be pressed onto the pin 381 manually. The pin 381 pierces through the second-layer leather to remove the second-layer leather. The leather is fixed to the upper end of the fixing block 38. Then, the moving block 384 can be moved up along the mounting rod 382 and the connecting spring 385 can be compressed to release the limit rod 383 and the moving block 384. At the same time, the moving block 384 is rotated so that the limiting hole at the lower end of the moving block 384 is above the pin 381. Then, the moving block 384 is released. Under the elastic force of the connecting spring 385, the moving block 384 moves down along the mounting rod 382 and finally presses against the upper end of the fixing block 38. The pin 381 is gradually inserted into the limiting hole. At this time, the second layer of leather is just between the fixing block 38 and the moving block 384, and the connecting spring 385 is still in a compressed state to ensure that the second layer of leather is in a stable state under the elastic pressure of the moving plate. By using the cooperation between the moving block 384, the pin 381 and the limiting hole, the second layer of leather can be tightly pressed against the upper end of the fixing block 38. Then, the other three corners of the second layer of leather can be inserted and pressed in the same way.

[0044] After the first piece of split leather is secured, multiple pieces of split leather can be tightened and secured from bottom to top in the same manner as described above. In addition, there is a certain distance between the upper and lower adjacent rotating blocks 34, so that there is a certain gap between the multiple pieces of split leather arranged in the upper and lower positions. By fixing and tightening multiple pieces of split leather in an alternating manner, not only is the number of pieces of split leather that can be dyed at one time increased, improving the efficiency of subsequent dyeing, but it can also ensure that different pieces of split leather can be dyed in the dye solution in a uniform and effective manner, ensuring the consistency of dyeing quality and dyeing speed of different pieces of split leather, thereby improving the dyeing effect.

[0045] Since the second-layer leather is not trimmed during dyeing, the shape and size of different second-layer leathers may vary. During the process of fixing the second-layer leather, the insert rod 36 can be pulled out from the corresponding insertion hole 35 first, allowing the rotating block 34 to be in a free state. Then, the corresponding rotating block 34 is rotated around the support column 32. The threaded telescopic rod 37, guide telescopic rod 39, fixing block 38, mounting rod 382, ​​connecting spring 385, moving block 384, and insert pin 381 rotate synchronously around the support column 32. After the rotating block 34 rotates to the appropriate position, it can be fixed again to the upper end of the corresponding square plate 33 through the cooperation between the insert rod 36 and the insertion hole 35. Simultaneously, it can also be rotated... The telescopic end of the movable threaded telescopic rod 37 adjusts the position of the fixing block 38, and the positions of the mounting rod 382, ​​the moving block 384, the limiting rod 383, and the pin 381 change synchronously. The guide telescopic rods 39 on both sides of the threaded telescopic rod 37 extend and retract synchronously. By rotating the rotating block 34 in conjunction with rotating the threaded telescopic rod 37, the positions of the fixing block 38, the pin 381, and the moving block 384 when fixing the second layer of leather can be flexibly changed to meet the fixing requirements of second layer leather of different shapes and sizes. In order to ensure that the second layer of leather is always in a taut state, the fixing points on the same second layer of leather can be different. Fixing the second layer of leather at the optimal point is beneficial to improving the stability of the second layer of leather.

[0046] Please see Figure 2 and Figure 4 The feeding unit 3 also includes an electric hoist 311 disposed above the fixed component. Electric sliders 312 are installed at both the front and rear ends of the electric hoist 311. The electric sliders 312 on the same side are slidably mounted on the same transverse guide rail 313. The transverse guide rail 313 is mounted on the upper end of the fixed base 1 through a support frame. The front end of the electric slider 312 located on the front side in the right feeding unit 3 and the rear end of the electric slider 312 located on the rear side in the left feeding unit 3 are both equipped with alignment plates 314. A baffle 315 opposite to the alignment plate 314 is installed on the upper end of the support frame.

[0047] Please see Figure 3 , Figure 5 , Figure 6 and Figure 8 The square frame 31 is equipped with elastic telescopic plates 316 in the middle of the outer sides of the square frame 31. The inner walls of the dyeing frame 21 are provided with strip grooves 317 that slide up and down with the telescopic ends of the corresponding elastic telescopic plates 316. The upper end of the dyeing frame 21 is equipped with a funnel-shaped protective frame 318.

[0048] Please see Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7A cross 319 is installed between the upper ends of the fixed section of the elastic telescopic plate 316 located above. The cross 319 is located at the lower end of the annular plate 321, and an annular groove is formed at the lower end of the annular plate 321. Arc-shaped rods 322 that slide in connection with the annular groove are installed at the upper ends of both the transverse and longitudinal sections of the cross 319. A rotating column 323 is installed at the middle of the upper end of the cross 319. The upper end of the rotating column 323 is connected to the output shaft of the motor 328. The motor 328 is mounted on the upper end of the annular plate 321 via a support. Arc-shaped grooves 324 that are evenly distributed circumferentially are formed on the outside of the rotating column 323. A control rod 325 is provided on the front side of the rotating column 323. The control rod 325 slides back and forth with the upright plate installed at the lower end of the support. The rear end of the control rod 325 is equipped with an arc-shaped block 326 that matches the arc-shaped groove 324. A telescopic spring 327, which is sleeved on the outside of the control rod 325, is connected between the arc-shaped block 326 and the upright plate. A protective shell, which is sleeved on the outside of the motor 328, is installed on the upper end of the support. The upper end face of the protective shell and the upper end faces of the front and rear sides of the annular plate 321 are connected to the feeding wire rope 329 set at the lower end of the corresponding electric hoist 311. The left and right sides of the feeding wire rope 329 in the middle are connected to the upper end faces of the transverse sections corresponding to the cross 319 with inclined auxiliary wire ropes 331. The upper end of the dyeing equipment 2 is hinged with two rectangular doors 332 that are symmetrical on the left and right. The rectangular doors 332 are provided with semi-circular through holes for avoiding the wire rope.

[0049] When fixing different points on the same piece of split leather, the rotating column 323 can be driven to rotate 90 degrees by the motor 328. The rotating column 323 drives the elastic telescopic plate 316 and the square frame 31 above to rotate synchronously through the cross 319. The cross 319 rotates along the annular groove at the lower end of the ring plate 321 through the arc rod 322. The rotation of the cross 319 can be guided and supported by the cooperation of the ring plate 321, the annular groove and the arc rod 322, which improves the stability of the cross 319. The square frame 31 below rotates synchronously through the support column 32. The fixing assembly rotates 90 degrees synchronously. By intermittently rotating the fixing assembly, the fixed points of the split leather can be rotated to other places, and the unfixed points can be rotated to the position of the operator. The fixing position of the split leather is automatically changed, and multiple pieces of split leather can be fixed continuously without the need for the worker to walk back and forth to complete the fixing of the split leather. This helps to shorten the overall fixing time, save time and labor, and increase the feeding efficiency.

[0050] In the initial state, the arc-shaped block 326 abuts against the arc-shaped groove 324 on the outside of the rotating column 323, and the telescopic spring 327 is in a compressed state. Through the cooperation of the arc-shaped block 326 and the arc-shaped groove 324, the rotating column 323 can be limited, which also limits the fixed component, preventing the fixed component from rotating during subsequent movement and affecting the smooth progress of subsequent dyeing. During the process of the motor 328 driving the rotating column 323 to rotate intermittently to change the position of the fixed component, the arc-shaped block 326 gradually disengages from the arc-shaped groove 324 as the rotating column 323 rotates. The control rod 325 moves forward along the upright plate and compresses the telescopic spring 327 as the arc-shaped block 326 moves, so that the rotating column 323 can rotate smoothly. The arc-shaped block 326 and the arc-shaped groove 324 can also limit the 90-degree intermittent rotation of the fixed component to ensure the accuracy of the rotation angle of the fixed component. It should be noted that the motor 328 and the protective shell have been waterproofed, and the dye solution in the subsequent dyeing process will not affect the operation of the motor 328.

[0051] Step 5: After the right-side fixing component has secured several layers of leather, the electric hoist 311 on the right side can move the protective shell and cross 319 upwards synchronously via the feeding wire rope 329 at its lower end. The protective shell moves the support and annular plate 321, the cross 319 moves the elastic telescopic plate 316, the upper square frame 31, the support column 32, and the lower square frame 31 upwards synchronously. The middle feeding wire rope 329 and the auxiliary wire ropes 331 on its left and right sides form a stable triangular structure, enabling the fixing component to move several layers of leather upwards in a balanced and stable manner, improving the overall stability of the fixing component and the layers of leather during the feeding process. At this time, the dyeing process begins. The left and right rectangular doors 332 at the top of the equipment 2 are in the open state. When the fixing component moves the second layer of leather to the upper right side of the dyeing equipment 2, the front and rear electric sliders 312 on the right side can drive the electric hoist 311 on the right side to move to the left along the front and rear horizontal guide rails 313. The electric hoist 311 drives the fixing component and the second layer of leather to move to the left synchronously through the feeding wire rope 329 until the fixing component and the second layer of leather are directly above the dyeing equipment 2. At this time, the alignment plate 314 on the right side just abuts against the baffle 315 on the front support frame. The cooperation between the alignment plate 314 and the baffle 315 can ensure the accuracy of the leftward movement of the fixing component and the second layer of leather.

[0052] Subsequently, the electric hoist on the right side, via the feeding wire rope 329, moves the fixing component and the second-layer leather down into the dyeing frame 21 inside the dyeing equipment 2, simultaneously immersing several layers of leather into the dyeing solution within the dyeing frame. During this process, the funnel-shaped protective frame 318 guides the downward movement of the fixing component, and the elastic telescopic plates 316 on the upper and lower square frames 31 do not contact the protective frame 318. The square holes on the square frames 31 help reduce the pressure between the square frames 31 and the dyeing solution during downward movement. As the fixing component moves downward, the telescopic section of the lower elastic telescopic plate 316 gradually... The components gradually shrink and enter the corresponding strip groove 317 on the inner wall of the dyeing frame 21. When the fixing component is fully inserted into the dyeing frame 21, the elastic telescopic plates 316 on the same side on the upper and lower sides enter the same strip groove 317. The cooperation between the elastic telescopic plates 316 and the strip groove 317 can guide and support the downward movement of the fixing component, thereby ensuring that several layers of leather remain stable during the dyeing process. Then, the rectangular doors 332 on the left and right sides can be rotated to close the upper end of the dyeing equipment 2. The semi-circular through holes opened on the rectangular plates can be used for the up and down movement of the feeding wire rope 329.

[0053] The temperature, pressure, and time parameters of the dyeing equipment 2 are set as required to complete the dyeing of several layers of leather within the dyeing frame 21. After the dyeing of the second-layer leather is completed, the electric hoist 311 moves the fixing component and several layers of leather upwards to the area of ​​the protective frame 318 via the feeding wire rope 329. The elastic telescopic plates 316 are all disengaged from the corresponding strip grooves 317. At this time, the dyeing equipment 2 is still in a closed state. Then, the fixing component can be driven to rotate rapidly by the motor 328 to remove the attached or dyed leather from the fixing component. Excess dye solution on the second-layer leather is shaken off and flows back into the dyeing frame 21 along the funnel-shaped protective frame 318. By pre-drying the second-layer leather, the subsequent drying time is reduced, allowing the dyed second-layer leather to be quickly removed from the fixing component for subsequent dyeing. Then, the left and right rectangular doors 332 can be opened to put the dyeing equipment 2 in the open state, and the fixing component on the right side and the second-layer leather can be reset by the cooperation of the electric hoist 311 and the electric slider 312 on the right side.

[0054] During the dyeing process of the second-layer leather driven by the right-side fixing component, several second-layer leathers can be fixed to the left-side fixing component in the same way. After the dyed second-layer leathers leave the dyeing equipment 2 driven by the right-side fixing component, the left-side fixing component and several second-layer leathers can be placed into the dyeing equipment 2 in time and dyed in the same way to improve the overall dyeing efficiency.

[0055] Step 6: After the second layer of leather has been dyed, it can be dried using existing equipment. The dried second layer of leather can then be removed from the fixed component for subsequent finishing, cutting and other processing.

[0056] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 An automatic feeding method for waterproof nubuck dyeing, which is completed using an automatic feeding device for waterproof nubuck dyeing, includes the following steps:

[0057] S1. Preparation stage: Select suitable split cowhide as the base material and clean the leather to remove impurities and grease from its surface.

[0058] S2. Pre-treatment: The second layer of leather undergoes certain physical treatments, such as sanding, stretching, and smoothing.

[0059] S3. Preparation of dye solution: Select the appropriate dye according to the required color, weigh and measure it, pour the dye into the dyeing frame 21 in the dyeing equipment 2, add an appropriate amount of water according to the ratio, and stir the dye thoroughly.

[0060] S4. Secure the leather: Secure two layers of leather placed at intervals from bottom to top using securing components.

[0061] S5. Loading and dyeing: The fixed component and the second layer of leather are moved into the dyeing frame 21 inside the dyeing equipment 2 by the cooperation of the electric hoist 311 and the electric slider 312, and the second layer of leather is fully immersed in the dye solution in the dyeing frame 21 for dyeing. At the same time, the dyeing equipment 2 needs to be closed and the parameters such as temperature, pressure and time of the dyeing equipment 2 need to be set as required.

[0062] S06. Post-treatment: After the dyeing is completed, open the dyeing equipment 2, remove the fixing components and the dyed second layer leather from the dyeing equipment 2, and use existing equipment to carry out drying, finishing, cutting, waterproofing and other treatment processes on the dyed second layer leather.

[0063] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; 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; and they can refer to the internal communication 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.

[0065] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic feeding device for waterproof nubuck dyeing, comprising a fixed base (1), an immersion dyeing device (2) disposed at the upper end of the fixed base (1), and an immersion dyeing frame (21) disposed inside the immersion dyeing device (2), characterized in that: The dyeing equipment (2) is provided with feeding units (3) located above the fixed base (1) on both the left and right sides; The feeding unit (3) includes a fixing component for fixing the second layer of leather. The fixing component includes two square frames (31) distributed vertically. Square holes are evenly arranged on the square frames (31). Support columns (32) are connected between the four corners of the upper and lower square frames (31). Square plates (33) evenly arranged vertically are fitted on the outside of the support columns (32). Rotating blocks (34) are rotatably installed on the upper end of the square plates (33) outside the support columns (32). A threaded telescopic rod (37) is installed on the side of the rotating block (34) away from the center of the square frame (31). A fixing block (38) is rotatably installed at the telescopic end of the threaded telescopic rod (37). A connection is made between the fixing block (38) and the rotating block (34). Regarding the guide telescopic rod (39) symmetrical to the threaded telescopic rod (37), a pin (381) is installed on the upper end of the fixing block (38), and an installation rod (382) is installed on the upper end of the fixing block (38) on the side of the pin (381) near the threaded telescopic rod (37). A limit rod (383) is installed on the upper end of the fixing block (38) corresponding to the position of the guide telescopic rod (39). A moving block (384) is sleeved on the outside of the installation rod (382). A connecting spring (385) sleeved on the outside of the installation rod (382) is connected between the moving block (384) and the upper end of the installation rod (382). A limit hole that cooperates with the limit rod (383) is opened on the lower end of the side of the moving block (384) away from the installation rod (382). The feeding unit (3) also includes an electric hoist (311) set above the fixed component. Electric sliders (312) are installed at both the front and rear ends of the electric hoist (311). The electric sliders (312) on the same side are slidably installed on the same transverse guide rail (313). The transverse guide rail (313) is installed on the upper end of the fixed base (1) through the support frame. Elastic telescopic plates (316) are installed in the middle of the outer sides of the square frame (31). A cross (319) is installed between the upper ends of the fixed section of the upper elastic telescopic plate (316). The cross (319) is set at the lower end of the annular plate (321). A rotating column (323) is installed in the middle of the upper end of the cross (319). The rotating column (323) has circumferentially evenly arranged arc-shaped grooves (324) on its outside. A control rod (325) is set on the front side of the rotating column (323). The control rod (325) is slidably connected to the upright plate installed at the lower end of the support. An arc-shaped block (326) that cooperates with the arc-shaped groove (324) is installed at the rear end of the control rod (325). A telescopic spring (327) sleeved on the outside of the control rod (325) is connected between the arc-shaped block (326) and the upright plate.

2. The automatic feeding device for waterproof boob dyeing according to claim 1, characterized in that: Each of the rotating blocks (34) has a set of insertion holes (35) evenly arranged around the corresponding support column (32). The upper end of the side of the square plate (33) away from the center of the square frame (31) is connected to the corresponding insertion hole (35) by a insertion rod (36).

3. The automatic feeding device for waterproof boob dyeing according to claim 1, characterized in that: The inner walls of the dyeing frame (21) are provided with strip grooves (317) that slide up and down with the telescopic ends of the corresponding elastic telescopic plates (316). A funnel-shaped protective frame (318) is installed on the upper end of the dyeing frame (21).

4. The automatic feeding device for waterproof boob dyeing according to claim 3, characterized in that: The lower end of the annular plate (321) is provided with an annular groove, and the upper ends of the transverse and longitudinal sections of the cross (319) are both equipped with arc-shaped rods (322) that are slidably connected to the annular groove.

5. The waterproof boba dyeing automatic feeding device according to claim 4, characterized in that: The upper end of the rotating column (323) is connected to the output shaft of the motor (328). The motor (328) is mounted on the upper end of the annular plate (321) via a support. A protective shell is installed on the upper end of the support and fitted onto the outside of the motor (328).

6. The waterproof boba dyeing automatic feeding device according to claim 5, characterized in that: The upper end face of the protective shell is connected to the upper end face of the front and rear sides of the annular plate (321) and the feeding wire rope (329) set at the lower end of the corresponding electric hoist (311). The left and right sides of the feeding wire rope (329) in the middle are connected to the upper end face of the horizontal section corresponding to the cross (319) by inclined auxiliary wire ropes (331). The dyeing equipment (2) is hinged with two rectangular doors (332) that are symmetrical on the left and right. The rectangular doors (332) are provided with semi-circular through holes for avoiding the wire rope.

7. The automatic feeding device for waterproof boob dyeing according to claim 1, characterized in that: The front end of the electric slider (312) located on the front side of the feeding unit (3) on the right and the rear end of the electric slider (312) located on the rear side of the feeding unit (3) on the left are both equipped with alignment plates (314), and the upper end of the support frame is equipped with a baffle (315) opposite to the alignment plate (314).

8. An automatic feeding method for waterproof nubuck dyeing, characterized in that, The process, performed using the waterproof boob dyeing automatic feeding device as described in claim 1, includes the following steps: S1. Preparation stage: Select suitable second-layer cowhide as the base material and clean the leather to remove impurities and grease from its surface; S2. Pre-treatment: The second layer leather undergoes certain physical treatments, including sanding, stretching and smoothing. S3. Preparation of dye solution: Select appropriate dye according to the required color, weigh and measure it, pour the dye into the dyeing frame (21) in the dyeing equipment (2), add an appropriate amount of water according to the ratio, and stir the dye evenly. S4. Secure the leather: Secure two layers of leather placed at intervals from bottom to top using securing components; S5. Loading and dyeing: The fixed component and the second layer of leather are moved into the dyeing frame (21) in the dyeing equipment (2) by the cooperation of the electric hoist (311) and the electric slider (312), and the second layer of leather is fully immersed in the dye solution in the dyeing frame (21) for dyeing. At the same time, the dyeing equipment (2) needs to be closed and the temperature, pressure and time parameters of the dyeing equipment (2) are set as required. S6. Post-processing: After the dyeing is completed, open the dyeing equipment (2), remove the fixing components and the dyed second layer leather from the dyeing equipment (2), and use the existing equipment to dry, coat and cut the dyed second layer leather.

Images