Preparation process of high-elasticity superfine fiber leather base cloth

Abstract

The application discloses a kind of high elastic superfine fiber's leather base cloth preparation process, belong to superfine fiber synthetic leather preparation method technical field, including shell and widen part;Widen part includes rotationally connected in shell and widen synchronous belt and multiple clamping jaw being set on widen synchronous belt;Leather base cloth passes through shell and is treated after the following steps: one: while conveying leather base cloth, widen;Two: cleaning part is cleaned to clamping jaw;Again, leather base cloth is clamped and widened;Three: gas washing part is provided in shell;Shell is provided with heating part;Gas washing part negative pressure extraction mixes with short fine fiber air and impurity.The application can widen while conveying leather base cloth;Can automatically clean clamping jaw;Can treat waste gas and residue on clamping jaw in bulk;Can circulate the air in heating equipment;In addition, in the process of drying and setting, mix with a certain amount of water vapor, also can improve setting effect.

Description

Technical Field

[0001] This invention belongs to the technical field of microfiber synthetic leather preparation methods, and more specifically, relates to a process for preparing a leather base fabric with high elastic microfiber. Background Technology

[0002] Chinese patent document CN202000115U discloses a cleaning device, specifically a cleaning device for the fabric clips of a stenter. The stenter fabric clip cleaning device includes a stenter frame, two rows of fabric clips mounted on the frame, and a steam nozzle above each row of clips. The steam nozzles are connected to a steam pipe, and a valve is installed on the steam pipe. This invention utilizes the method of having steam nozzles above each row of clips, so that when the clips are running, opening the valve allows the steam from the nozzles to clean the entire row of clips. Furthermore, the steam has a high impact force and high temperature, ensuring thorough cleaning without leaving any blind spots and effectively removing oil stains from the clips.

[0003] Chinese patent document CN114558392A discloses a waste gas treatment device for a setting machine used in polyester fabric printing and dyeing, relating to the field of waste gas treatment technology. The invention includes a base plate, a setting machine body mounted on one side of the top of the base plate, an air pump mounted on the top of the base plate, a connecting pipe inside the air pump, a connecting cylinder on the side of the air pump, and a freezing chamber inside the connecting cylinder. The two ends of the connecting pipe extend to the setting machine body and the freezing chamber respectively, both of which are connected to the connecting pipe. A disc is mounted on the inner wall of the connecting cylinder. This invention, through the coordinated use of the freezing chamber, drive motor, air pump, fan blades, temperature sensor, and electronic valve, can cool the discharged waste gas, preventing excessively high waste gas temperatures from polluting the air. Simultaneously, when the waste gas temperature drops to a certain value, the electronic valve opens through the electrical connection between the temperature sensor and the electronic valve, allowing the waste gas to automatically enter the next treatment process, making it convenient to use.

[0004] While solving the technical problems, the aforementioned invention patents have added corresponding equipment and operating steps, reducing production efficiency and production costs. Therefore, the above solutions cannot meet actual usage needs to a certain extent. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a process for preparing a leather base fabric with high elastic microfiber, which can realize the repeated use of the heat from the shaping process and can clean the grippers, thereby reducing energy consumption and pollution emissions.

[0006] The present invention discloses a process for preparing a high-elastic microfiber leather base fabric, comprising a shell and two shaping parts respectively disposed on the left and right sides of the leather base fabric within the shell; the shaping part includes two widening parts respectively disposed on the upper and lower sides of the leather base fabric; the widening part includes a widening timing belt rotatably connected within the shell and a plurality of uniformly arranged grippers slidably connected to the widening timing belt and capable of cyclically clamping the leather base fabric.

[0007] The leather base fabric undergoes the following steps when passing through the housing:

[0008] Step 1: The rotating synchronous belt drives the grippers to slide, conveying the leather base fabric while simultaneously widening it.

[0009] Step 2: The housing is provided with a cleaning part for cleaning the grippers; the widening timing belt rotates while driving the cleaning part to clean the grippers; the cleaned grippers then clamp and widen the leather base fabric again.

[0010] Step 3: The housing is provided with an air washing section; the housing is provided with a heating section; the air washing section draws air mixed with short and fine fibers and impurities washed out by the cleaning section from the housing under negative pressure. After the impurities are removed by the air washing, the clean air is reheated by the heating section and blown onto the leather base fabric for shaping.

[0011] As a further improvement of the present invention, the cleaning section has four parts; the shaping section includes two cleaning sections respectively disposed on the upper and lower sides of the leather base fabric; the cleaning section includes two symmetrically disposed cleaning timing belts rotatably connected to the housing and driven by the widening timing belt, and a plurality of brushes respectively disposed on the corresponding cleaning timing belts; the grippers on the side of the widening timing belt near the leather base fabric hold the leather base fabric, and the grippers on the side of the widening timing belt away from the leather base fabric abut against the brushes.

[0012] As a further improvement of the present invention, the cleaning unit includes a plurality of comb plates slidably connected to the corresponding brushes for combing the brushes, and a spring disposed between the brushes and the comb plates for sliding the comb plates toward the cleaning timing belt; the housing is formed with combing grooves slidably connected to the comb plates for sliding the comb plates away from the cleaning timing belt; the brushes on the side of the sliding cleaning timing belt near the corresponding gripper abut against the gripper, and the comb plates are located at their extreme positions near the cleaning timing belt; the brushes on the side of the cleaning timing belt away from the corresponding gripper do not contact the gripper, and the comb plates are located at their extreme positions away from the cleaning timing belt, thus combing off the impurities attached to the brushes.

[0013] As a further improvement of the present invention, the widening section includes a plurality of gripper portions respectively disposed on the widening timing belt; the gripper portion includes a sliding seat fixedly connected to the widening timing belt, two transmission rods respectively slidably connected to the sliding seat, and a gripper rotatably connected to one of the two transmission rods; the other transmission rod is slidably connected to the gripper and can drive the gripper to rotate relative to the sliding seat; the housing is formed with an inclined widening groove that can be slidably connected to the transmission rod and thus drive the transmission rod to slide.

[0014] As a further improvement of the present invention, a rotating hole is formed on the end of the gripper facing the stretching synchronous belt, which is rotatably connected to the corresponding transmission rod; a transverse groove is formed on the end of the gripper facing the stretching synchronous belt, which is slidably connected to the corresponding transmission rod.

[0015] As a further improvement of the present invention, the air washing section includes an air washing basin filled with water that is fixedly connected to the housing; the heating section includes a hot drying shell fixedly connected to the housing, a heating tube fixedly connected to the hot drying shell, and an electric impeller disposed in the hot drying shell; the electric impeller rotates to draw clean air from the air washing basin, and then blows the clean air onto the leather base fabric after passing through the heating tube.

[0016] As a further improvement of the present invention, the cleaning part includes a negative pressure pipe fixedly connected to the housing, with one end opening close to the brush; the other end opening of the negative pressure pipe communicates with the lower part of the washing basin.

[0017] As a further improvement of the present invention, the air washing unit includes a filter plate fixedly connected to the air washing basin and located above the water surface, a suction pipe disposed in the air washing basin with its lower opening located below the water surface and its upper opening located above the filter plate, and a centrifugal pump disposed on the suction pipe for pumping water in the air washing basin to the filter plate.

[0018] As a further improvement of the present invention, the outer wall of the suction pipe located inside the water surface is formed with a stirring rod for stirring the water; the upper end of the suction pipe is formed with a driven impeller that can be driven to rotate by the air flowing through the air washing basin; the lower end opening of the suction pipe is close to the lower part of the air washing basin.

[0019] As a further improvement of the present invention, the housing is provided with openings on both sides for the leather base fabric to pass through; the openings are provided with flexible sealing links that can seal the openings; the leather base fabric can pass through the flexible sealing links.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is equipped with a gripper that can move synchronously with the leather base fabric and drive the leather base fabric to be stretched, thereby reducing the working cycle and improving the working efficiency; at the same time, the gripper can rotate and tilt along with the stretching and bending of the leather base fabric, so that the tension at each tension point of the leather base fabric changes evenly during the stretching process, preventing excessive local stress and improving the stretching quality.

[0021] This invention features a cleaning timing belt. As the cleaning timing belt moves, it causes the brush to slide relative to the gripper, thereby cleaning the dirt and grime adhering to the gripper. Simultaneously, the continued movement of the cleaning timing belt also causes the comb plate to move relative to the brush, cleaning the dirt and grime adhering to the brush. This improves the cleaning effect of the brush on the gripper in the next work cycle. In addition, the cleaning timing belt is connected to the stretching timing belt, without the need for new motion mechanisms or operating steps.

[0022] This invention features an air scrubbing basin. An electric impeller blows a high-temperature airflow onto the leather base fabric, simultaneously creating negative pressure in the negative pressure pipe. Air containing short, fine fibers and dirt removed from the grippers are drawn into the air scrubbing basin. The short, fine fibers, after being soaked in water, mix with the dirt, facilitating centralized processing, preventing exhaust emissions, and protecting the working environment. The moving airflow also drives the driven impeller to rotate, further agitating the water in the scrubbing basin and concentrating impurities in the center for easier filtration. This ensures the water in the scrubbing basin maintains optimal scrubbing efficiency. Furthermore, the air inside the casing is repeatedly circulated and heated, preventing heat loss and reducing energy consumption. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 3 This is an exploded structural diagram of the present invention;

[0026] Figure 4 This is a cross-sectional view of the housing of the present invention.

[0027] Figure 5 This is an exploded structural diagram of the widened portion of the present invention;

[0028] Figure 6 This is an exploded structural diagram of the cleaning part of the present invention;

[0029] Figure 7 This is an exploded structural diagram of the air washing section of the present invention;

[0030] Figure 8This is an exploded structural diagram of the heating part of the present invention;

[0031] Figure 9 This is a structural schematic diagram of the working state of the present invention;

[0032] Figure 10 This is a schematic diagram of the production process of the leather base fabric of the present invention;

[0033] Figure 11 This is a schematic diagram of the exhaust gas recycling of the present invention;

[0034] Explanation of the labels in the diagram: A. Leather base fabric; 10. Housing; 101. Widening slant groove; 102. Far fabric slant groove; 103. Near fabric slant groove; 104. Cleaning slant groove; 105. Self-cleaning slant groove; 106. Combing slant groove; 11. Flexible sealing curtain; 2. Widening section; 21. Widening synchronous belt; 22. Sliding seat; 23. Transmission rod; 231. Widening slide column; 24. Gripper; 241. Rotating hole; 242. Horizontal groove; 25. Widening motor; 3. Cleaning section; 31. Cleaning synchronous belt; 311. Cleaning gear; 3 2. Brush; 33. Comb plate; 331. Comb plate slide column; 34. Spring; 35. Friction wheel; 351. Transmission gear; 36. Negative pressure pipe; 361. First air inlet pipe; 37. Transmission synchronous belt; 4. Air washing section; 41. Air washing basin; 411. Second air inlet pipe; 412. First air outlet pipe; 42. Filter plate; 43. Sludge suction pipe; 431. Stirring rod; 44. Driven impeller; 45. Centrifugal pump; 5. Heating section; 51. Hot drying shell; 511. Second air outlet pipe; 52. Heating tube; 53. Electric impeller. Detailed Implementation

[0035] Specific Implementation Example 1: Please refer to Figure 1-11 A process for preparing a high-elastic microfiber leather base fabric includes a housing 10 and two shaping parts respectively disposed on the left and right sides of the leather base fabric within the housing 10; the shaping part includes two widening parts 2 respectively disposed on the upper and lower sides of the leather base fabric; the widening part 2 includes a widening timing belt 21 rotatably connected within the housing 10 and a plurality of uniformly arranged claws 24 slidably connected to the widening timing belt 21, capable of cyclically clamping the leather base fabric (for clarity, only one claw 24 in each different position state is shown in the figure, and the rest of the claws 24 are hidden).

[0036] The housing 10 is composed of two symmetrically arranged half-shells; the widening part 2 includes two first synchronous pulleys with two rotating shafts rotatably connected in the housing 10 and arranged in the left-right direction, and a widening motor 25 fixedly connected in the housing 10 and driven by one of the first synchronous pulleys; the two first synchronous pulleys are arranged in the front-back direction; the widening synchronous belt 21 is arranged on the outer periphery of the corresponding two first synchronous pulleys.

[0037] The leather base fabric undergoes the following steps when passing through the housing 10:

[0038] Step 1: The rotating synchronous belt 21 drives the gripper 24 to slide, conveying the leather base fabric while simultaneously widening it.

[0039] Step 2: The housing 10 is provided with a cleaning part 3 for cleaning the gripper 24; while the stretching synchronous belt 21 rotates, it drives the cleaning part 3 to clean the gripper 24; after cleaning, the gripper 24 clamps and stretches the leather base fabric again.

[0040] Step 3: The housing 10 is provided with a washing air section 4; the housing 10 is provided with a heating section 5; the washing air section 4 uses negative pressure to extract the air mixed with short and fine fibers and the impurities washed out by the cleaning section 3 from the housing 10. After the impurities are removed by the washing air, the clean air is heated again by the heating section 5 and then blown onto the leather base fabric for shaping.

[0041] The cleaning section 3 has four parts; the shaping section includes two cleaning sections 3 respectively disposed on the upper and lower sides of the leather base fabric; the cleaning section 3 includes two symmetrically disposed cleaning synchronous belts 31 rotatably connected to the housing 10 and drivenly connected to the widening synchronous belt 21, and a plurality of brushes 32 respectively disposed on the corresponding cleaning synchronous belts 31 (for clarity of illustration, only one of the brushes 32 in each different position state is shown in the figure, and the rest of the brushes 32 are hidden); the gripper 24 on the side of the widening synchronous belt 21 near the leather base fabric clamps the leather base fabric, and the gripper 24 on the side of the widening synchronous belt 21 away from the leather base fabric abuts against the brushes 32.

[0042] The cleaning section 3 includes two second synchronous pulleys, each with a rotating shaft rotatably connected to the housing 10 at both ends of the cleaning synchronous belt 31 and arranged in a left-right direction; the two cleaning synchronous belts 31 within the same cleaning section 3 are connected by a transmission synchronous belt 37; a cleaning gear 311 is fixedly connected to one of the second synchronous pulleys and is coaxially arranged; a friction wheel 35 is rotatably connected to the widening synchronous belt 21 and is driven by it; a transmission gear 351 is fixedly connected to the friction wheel 35 and is coaxially arranged and driven by it, and is driven by it, and the widening synchronous belt 21 rotates in the opposite direction to the cleaning synchronous belt 31.

[0043] The cleaning unit 3 includes multiple comb plates 33 slidably connected to the corresponding brushes 32 for combing the brushes 32, and multiple springs 34 disposed between the brushes 32 and the comb plates 33 for sliding the comb plates 33 toward the cleaning synchronization belt 31; the housing 10 is formed with combing grooves 106 slidably connected to the comb plates 33 for sliding the comb plates 33 away from the cleaning synchronization belt 31; the brushes 32 on the side of the cleaning synchronization belt 31 near the corresponding gripper 24 abut against the gripper 24, and the comb plates 33 are located at their extreme positions near the cleaning synchronization belt 31; the brushes 32 on the side of the cleaning synchronization belt 31 away from the corresponding gripper 24 do not contact the gripper 24, and the comb plates 33 are located at their extreme positions away from the cleaning synchronization belt 31, combing off the impurities attached to the brushes 32.

[0044] The housing 10 has second combined sliding grooves formed on the left and right sides of the comb plate 33, which are slidably connected to the comb plate 33. The comb plate 33 has comb plate sliding posts 331 formed at both ends, which are slidably connected to the corresponding second combined sliding grooves. The second combined sliding groove includes a cleaning sliding groove 104 that is close to the corresponding cleaning synchronous belt 31 and arranged along the outline of the cleaning synchronous belt 31, and a self-cleaning sliding groove 105 that is arranged horizontally away from the cleaning synchronous belt 31. The two ends of the self-cleaning sliding groove 105 are respectively connected to the cleaning sliding groove 104 through two combing inclined grooves 106.

[0045] The widening section 2 includes multiple gripper sections respectively disposed on the widening timing belt 21; each gripper section includes a sliding seat 22 fixedly connected to the widening timing belt 21, two transmission rods 23 slidably connected to the sliding seat 22 in the left-right direction, and a gripper 24 rotatably connected to one of the two transmission rods 23; the other transmission rod 23 is slidably connected to the gripper 24 and can drive the gripper 24 to rotate relative to the sliding seat 22; the housing 10 has a widening groove 101 formed in an inclined manner that can be slidably connected to the transmission rod 23 and thus drive the transmission rod 23 to slide.

[0046] The housing 10 is formed with a boss for mounting the widening part 2; the outer periphery of the boss is formed with a closed annular first combined slide groove that is slidably connected to the transmission rod 23; the end of the transmission rod 23 away from the gripper 24 is formed with a widening slide column 231 that is slidably connected to the first combined slide groove; the first combined slide groove includes two symmetrically arranged semi-slide grooves that are connected end to end; the semi-slide groove includes all the widening inclined grooves 101, a near-fabric slide groove 103 formed on the side of the widening inclined groove 101 near the narrow end of the leather base fabric and connected to the widening inclined groove 101 along the leather base fabric conveying direction, and a far-fabric slide groove 102 formed on the side of the widening inclined groove 101 near the wide end of the leather base fabric and connected to the widening inclined groove 101 along the leather base fabric conveying direction.

[0047] The end of the gripper 24 facing the stretching synchronous belt 21 is formed with a rotating hole 241 that is rotatably connected to the corresponding transmission rod 23; the end of the gripper 24 facing the stretching synchronous belt 21 is formed with a transverse groove 242 that is slidably connected to the corresponding transmission rod 23.

[0048] The two power transmission rods 23 slide relative to each other, causing the corresponding transmission rod 23 to drive the transverse groove 242 to rotate, thereby causing the gripper 24 to rotate.

[0049] The air washing section 4 includes an air washing basin 41 filled with water, which is fixedly connected to the housing 10; the heating section 5 includes a hot drying shell 51 fixedly connected to the housing 10, a heating tube 52 fixedly connected to the hot drying shell 51, and an electric impeller 53 disposed in the hot drying shell 51; the electric impeller 53 rotates to draw clean air from the air washing basin 41, and then blows the clean air onto the leather base fabric after passing through the heating tube 52.

[0050] The air washing section 4 and the heating section 5 are each two, and are respectively installed in the upper and lower half shells; the hot drying shell 51 has a second air outlet pipe 511 formed at the end of the electric impeller 53 away from the heating tube 52; the upper end of the air washing basin 41 has a first air outlet pipe 412 that communicates with the second air outlet pipe 511; a second flexible hose is provided between the second air outlet pipe 511 and the first air outlet pipe 412.

[0051] The cleaning unit 3 includes a negative pressure pipe 36 fixedly connected inside the housing 10, with one end opening close to the brush 32; the other end opening of the negative pressure pipe 36 communicates with the lower part of the washing basin 41.

[0052] The lower end of the inner wall of the air washing basin 41 is formed with a second air inlet pipe 411; the end of the second air inlet pipe 411 is located above the water surface; the end of the negative pressure pipe 36 away from the brush 32 is formed with a first air inlet pipe 361; a first flexible hose is provided between the first air inlet pipe 361 and the second air inlet pipe 411.

[0053] The air washing unit 4 includes a filter plate 42 fixedly connected to the air washing basin 41 and located above the water surface, a suction pipe 43 located in the air washing basin 41 with its lower opening below the water surface and its upper opening above the filter plate 42, and a centrifugal pump 45 installed on the suction pipe 43 for pumping water from the air washing basin 41 to above the filter plate 42. The filter plate 42 is capable of separating impurities mixed in the water from the water.

[0054] The outer wall of the suction pipe 43, located within the water surface, is formed with a stirring rod 431 for stirring the water; the upper end of the suction pipe 43 is formed with a driven impeller 44 that can be rotated by the air flowing through the air washing basin 41; the lower end of the suction pipe 43 opens near the lower part of the air washing basin 41. The driven impeller 44 is rotatably and sealed within the first air outlet pipe 412.

[0055] The housing 10 has openings on both sides for the leather base fabric to pass through; the openings are provided with flexible sealing links 11 that can seal the openings; the leather base fabric can pass through the flexible sealing links 11.

[0056] A controller is provided inside the housing 10; the controller is electrically connected to the widening motor 25, the electric impeller 53, the centrifugal pump 45, and the heating tube 52.

[0057] When the leather base fabric is stretched and shaped, the controller controls the stretching motor 25 to rotate, which in turn drives the stretching timing belt 21. The rotation of the stretching timing belt 21 causes each sliding seat 22 to move synchronously, which in turn causes each transmission rod 23 to move synchronously. The stretching slide column 231 slides along the first combined slide groove. When the stretching slide column 231 is located near the narrow end of the leather base fabric, that is, when the stretching slide column 231 is located in the near-fabric slide groove 103, the movement of the stretching timing belt 21 causes the vertically facing grippers 24 of the leather base fabric to move towards each other, thereby clamping the leather base fabric. Subsequently, the leather base fabric and the grippers 24 move synchronously, and the stretching slide column 231 slides from the near-fabric slide groove 103 into the stretching inclined groove 101. Guided by the stretching inclined groove 101, the horizontally facing grippers 24 slide away from each other, stretching the leather base fabric. During the widening process, the two transmission rods 23 located on the same sliding seat 22 slide relative to each other, causing the transverse groove 242 to slide. Consequently, the gripper 24 can tilt and stretch the fabric during widening. The leather base fabric is widened simultaneously with the conveying process. The leather base fabric is subjected to uniform force at each widening position, and the tension at each widening position changes uniformly, ensuring that the leather base fabric is widened evenly, preventing local stress concentration, and improving the widening quality.

[0058] Subsequently, the widening slide column 231 slides from the widening inclined groove 101 into the far-fabric slide groove 102, completing the widening of the leather base fabric. The electric impeller 53, positioned vertically on the leather base fabric, drives the air heated by the heating pipe 52 to circulate, which in turn blows onto the widened leather base fabric, shaping it. When the widening slide column 231 moves to the side near the wide end of the leather base fabric, the widening synchronous belt 21 continues to move, causing the vertically facing grippers 24 to move away from each other, no longer holding the leather base fabric, which then enters the next station. The grippers 24 then slide to the side near the narrow end of the leather base fabric, and guided by the widening inclined groove 101 on the other side, slide again into the near-fabric slide groove 103 near the narrow end of the leather base fabric, repeating this process.

[0059] During the widening process of the leather base fabric, impurities adhering to the fabric and short fibers generated during widening will be separated from the fabric by the high-temperature airflow, mixing with the air and being directly discharged outside the housing 10, which will greatly affect the health of surrounding workers. Furthermore, during the movement of the widening section 2, such as the relative sliding between the transmission rod 23 and the sliding seat 22, and the rotation between the transmission rod 23 and the gripper 24, lubricating oil or other greases are often present. These easily mix with fibers and impurities floating inside the housing 10, forming sludge. When the gripper 24 clamps the leather base fabric again, the thickly accumulated sludge easily comes into contact with the fabric, contaminating it. Therefore, it is necessary to clean the suspended impurities mixed in the housing 10 and the sludge on the widening section 2.

[0060] When the gripper 24 no longer holds the leather base fabric and slides towards the narrow end of the fabric, it passes between the two cleaning timing belts 31. The widening timing belt 21 rotates, simultaneously driving the friction wheel 35 to rotate, which in turn drives the transmission gear 351. The transmission gear 351 then drives the cleaning gear 311, which in turn drives the cleaning timing belt 31. The rotation of the cleaning timing belt 31 causes the brush 32 to move relative to the gripper 24, thus cleaning the gripper 24. Simultaneously, the cleaning timing belt 31 drives the adjacent cleaning timing belt 31 to rotate via the transmission timing belt 37, thus cleaning both sides of the gripper 24. During cleaning, dirt originally adhering to the sliding seat 22, transmission rod 23, and gripper 24 will adhere to the brush 32, while any unadhered dirt will fall inside the housing 10 near the negative pressure pipe 36.

[0061] As the cleaning synchronous belt 31 rotates, it drives the comb plate 33 to move synchronously, that is, the comb plate slide column 331 moves synchronously. The comb plate 331 slides into the cleaning slide groove 104, and then into the combing inclined groove 106. Driven by the combing inclined groove 106, the comb plate 33 slides away from the cleaning synchronous belt 31. The spring 34 stores force, and the comb plate 33 then slides into the self-cleaning slide groove 105, thereby combing off the dirt adhering to the brush 32. During this process, the rotation of the electric impeller 53 reduces the pressure in the negative pressure pipe 36, drawing in air mixed with short and fine fibers from the housing 10. At the same time, the dirt that is combed off and the dirt that falls off are also absorbed into the negative pressure pipe 36, and then enter the air washing basin 41 through the first air inlet pipe 361 and the second air inlet pipe 411 in sequence. Subsequently, the comb plate 33 continues to move away from the self-cleaning chute 105. Under the elastic force of the spring 34, the comb plate 33 slides to the limit position close to the cleaning synchronous belt 31, and the brush 32 moves again to clean the gripper 24 again. Because the inside of the housing 10 is being dried by high-temperature gas, the temperature inside the housing 10 is high, and the grease flows well, making it easy to clean the dirt.

[0062] The mud and fine fibers entering the air washing basin 41 will mix with the water. The gas in the air washing basin 41 will be driven by the electric impeller 53 through the first air outlet pipe 412 and the second air outlet pipe 511, and then pass through the heating pipe 52. After the fine fibers are wetted by water, they will be adsorbed with the impurities in the water, and then they can be centrally processed. The flowing gas will drive the driven impeller 44 to rotate, which in turn will cause the suction pipe 43 to rotate, that is, the stirring rod 431 to rotate. The rotating stirring rod 431 agitates the water, causing the water-insoluble impurities to gather in the middle of the air washing basin 41 under the drive of the vortex. At the same time, the centrifugal pump set on the suction pipe 43 will work to suck up the water and impurities at the lower end of the suction pipe 43 and discharge them at the upper end. The water and impurities fall on the upper end of the filter plate 42, and the impurities are deposited on the filter plate 42, which is convenient for subsequent centralized processing. The air in the housing 10 is circulated back and forth for heating, which reduces heat dissipation and thus reduces energy consumption, while protecting the working environment.

[0063] The water in the air-washing basin is heated by the passing air, which produces water vapor that is blown onto the leather base fabric by the heated air. This reduces wrinkles on the leather base fabric, prevents localized overheating, and improves the shaping effect.

[0064] This invention enables the widening of the leather base fabric while conveying it, shortening the work cycle and improving production efficiency. It automatically cleans the grippers, preventing impurities adhering to them from contaminating the leather base fabric. It centrally treats waste gas generated during production and residue on the grippers, preventing external discharge that pollutes the environment. It circulates the air within the heating equipment, reducing heat loss and energy consumption. The circulating air is purified midway, preventing impurities in the circulating air from adsorbing onto the heating tubes and avoiding the generation of pollutants or contaminated gases from heating impurities. Furthermore, the presence of a certain amount of water vapor during the drying and shaping process improves the shaping effect, prevents localized overheating and surface wrinkles, and enhances product quality.

Claims

1. A process for preparing a leather base fabric using high-elastic microfiber, characterized in that: It includes a housing (10) and two shaping parts located on the left and right sides of the leather base fabric respectively disposed in the housing (10); the shaping part includes two widening parts (2) respectively disposed on the upper and lower sides of the leather base fabric; the widening part (2) includes a widening timing belt (21) rotatably connected in the housing (10) and a plurality of uniformly arranged slidably connected to the widening timing belt (21) capable of repeatedly clamping the leather base fabric. The leather base fabric is processed through the following steps as it passes through the housing (10): Step 1: The widening synchronous belt (21) rotates, causing the gripper (24) to slide, thus widening the leather base fabric while conveying it; Step 2: The housing (10) is provided with a cleaning part (3) for cleaning the gripper (24); the widening synchronous belt (21) rotates while driving the cleaning part (3) to clean the gripper (24); the cleaned gripper (24) clamps and widens the leather base fabric again; Step 3: The housing (10) is provided with a washing section (4); the housing (10) is provided with a heating section (5); the washing section (4) uses negative pressure to extract the air mixed with short and fine fibers and the impurities cleaned by the cleaning section (3) from the housing (10). After the impurities are removed by washing, the clean air is heated again by the heating section (5) and then blown onto the leather base fabric for shaping. The cleaning section (3) has four parts; the shaping section includes two cleaning sections (3) respectively disposed on the upper and lower sides of the leather base fabric; the cleaning section (3) includes two symmetrically disposed cleaning synchronous belts (31) rotatably connected to the housing (10) and driven by the widening synchronous belt (21) and a plurality of brushes (32) respectively disposed on the corresponding cleaning synchronous belts (31); the gripper (24) on the side of the widening synchronous belt (21) near the leather base fabric clamps the leather base fabric, and the gripper (24) on the side of the widening synchronous belt (21) away from the leather base fabric abuts against the brushes (32); The widening section (2) includes a plurality of gripper sections respectively disposed on the widening timing belt (21); the gripper section includes a sliding seat (22) fixedly connected to the widening timing belt (21), two transmission rods (23) respectively slidably connected to the sliding seat (22), and a gripper (24) rotatably connected to one of the two transmission rods (23); the other transmission rod (23) is slidably connected to the gripper (24) and can drive the gripper (24) to rotate relative to the sliding seat (22); the housing (10) is formed with an inclined widening groove (101) that can be slidably connected to the transmission rod (23) and thus drive the transmission rod (23) to slide.

2. The process for preparing a high-elastic microfiber leather base fabric as described in claim 1, characterized in that: The cleaning unit (3) includes a plurality of comb plates (33) slidably connected to the corresponding brushes (32) for combing the brushes (32), and a spring (34) disposed between the brushes (32) and the comb plates (33) for sliding the comb plates (33) toward the cleaning timing belt (31); the housing (10) is formed with combing grooves (106) slidably connected to the comb plates (33) for sliding the comb plates (33) away from the cleaning timing belt (31). The brush (32) on the side of the sliding cleaning synchronous belt (31) close to the corresponding gripper (24) abuts against the gripper (24), and the comb plate (33) is located at the extreme position close to the cleaning synchronous belt (31); the brush (32) on the side of the cleaning synchronous belt (31) away from the corresponding gripper (24) does not contact the gripper (24), and the comb plate (33) is located at the extreme position away from the cleaning synchronous belt (31), combing off the impurities attached to the brush (32).

3. The process for preparing a high-elastic microfiber leather base fabric as described in claim 1, characterized in that: The jaw (24) has a rotating hole (241) formed at the end facing the widened synchronous belt (21) that is rotatably connected to the corresponding transmission rod (23); the jaw (24) has a transverse groove (242) formed at the end facing the widened synchronous belt (21) that is slidably connected to the corresponding transmission rod (23).

4. The process for preparing a high-elastic microfiber leather base fabric as described in claim 2, characterized in that: The air washing section (4) includes an air washing basin (41) filled with water, which is fixedly connected to the housing (10); the heating section (5) includes a hot drying shell (51) fixedly connected to the housing (10), a heating tube (52) fixedly connected to the hot drying shell (51), and an electric impeller (53) disposed in the hot drying shell (51); the electric impeller (53) rotates to draw clean air from the air washing basin (41), and then blows the clean air through the heating tube (52) onto the leather base fabric.

5. The process for preparing a high-elastic microfiber leather base fabric as described in claim 4, characterized in that: The cleaning unit (3) includes a negative pressure pipe (36) fixedly connected inside the housing (10), with one end opening close to the brush (32); the other end opening of the negative pressure pipe (36) is connected to the lower part of the washing basin (41).

6. The process for preparing a high-elastic microfiber leather base fabric as described in claim 1, characterized in that: The housing (10) has openings on both sides for the leather base fabric to pass through; the openings are provided with flexible sealing curtains (11) that can seal the openings; the leather base fabric can pass through the flexible sealing curtains (11).

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