Water-cooled cooling equipment for water-based leather production

Abstract

The invention belongs to the technical field of water-based leather production, and particularly discloses water-cooled cooling equipment for water-based leather production, which comprises a bottom plate, an embossing mechanism is arranged on one side of the bottom plate, the embossing mechanism is used for embossing water-based leather, a box body is arranged on one side of the bottom plate, and a supporting plate is arranged on one side, far away from the box body, of the bottom plate. A guide roller is arranged on the lower portion of one side of the box body, a liquid conveying mechanism is arranged in the middle of the lower end of the inner wall of the box body, cooling mechanisms are rotationally arranged on one side of the box body, the number of the cooling mechanisms is three, and the three cooling mechanisms are distributed in a high-low staggered mode. The problems that in the cooling process of the water-based leather, the temperature is not uniform, water mist diffuses and coiled materials are affected with damp are effectively solved, and the product quality and the production stability are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of water-based leather production, and specifically discloses a water-cooled cooling device for water-based leather production. Background Technology

[0002] As an environmentally friendly product, the production process of water-based leather mainly includes key steps such as base fabric preparation, water-based coating application, infrared or hot air drying and curing, embossing (or texturing), cooling, and final winding. Among these, the cooling process is crucial, occurring after drying and embossing but before winding. In this stage, the leather, after high-temperature drying and embossing, must undergo rapid and uniform cooling. The main purposes of water cooling are threefold: first, to prevent the coating from softening due to excessive residual heat during winding, causing interlayer adhesion (i.e., "back-sticking") and irreversible damage; second, to stabilize the texture after embossing, preventing it from springing back and deforming due to material thermal memory; and third, to reduce the overall temperature of the leather to a safe storage temperature, ensuring stable product quality during subsequent warehousing and transportation.

[0003] Currently, the most commonly used cooling equipment in the industry is the water-cooled cooling roller device. Its typical operating method involves continuously circulating a cooling liquid (such as chilled water) into the hollow metal rollers to maintain a low temperature on the roller surface. During transport, the high-temperature leather comes into direct contact with the surfaces of these rotating cooling rollers, transferring heat to the rollers through heat conduction. The internal cooling liquid then carries away the heat, achieving heat exchange and cooling. However, this technology has a significant inherent drawback: when the high-temperature, high-humidity leather surface (which still contains some residual moisture after drying) suddenly comes into contact with the low-temperature cooling roller surface, a violent heat exchange occurs at the contact interface, causing water vapor in the air on the leather surface to condense instantly, producing a large amount of visible "contact mist." Existing cooling processes typically proceed directly to the winding process after cooling. If this water mist and moisture generated during the cooling process and potentially adhering to the leather surface or between the layers of the roll is not effectively removed, it will be tightly wrapped inside the roll core after winding and will be difficult to dissipate naturally. This can easily lead to a series of problems during storage, such as localized dampness, coating adhesion, mold growth, and even corrosion of the metal core, posing a serious threat to the quality and preservation stability of the finished leather. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a water-cooled cooling device for the production of water-based leather.

[0005] To achieve the above objectives, the present invention provides a water-cooled cooling device for the production of water-based leather, including a base plate, wherein an embossing mechanism is provided on one side of the base plate, and the embossing mechanism is used to emboss the water-based leather. A box is provided on one side of the base plate, a support plate is provided on the side of the base plate away from the box, a guide roller is provided on the lower part of one side of the box, and an infusion mechanism is provided in the middle of the lower end of the inner wall of the box. A cooling mechanism is rotatably installed on one side of the box. There are three sets of cooling mechanisms, which are distributed at different heights. A drive mechanism is provided on one side of the support plate corresponding to multiple cooling mechanisms. A pre-cooling mechanism is provided on one side of the upper end of the base plate, and a dehumidification mechanism is rotatably provided on one side of the support plate. The dehumidification mechanism is located on the side of the cooling mechanism. The dehumidification mechanism includes two sets of dehumidification cylinders. Each dehumidification cylinder has baffles on both sides of its inner wall and a partition between the two baffles. The partition is cross-shaped and divides the interior of the dehumidification cylinder into four dehumidification chambers. Each baffle has a four-way pipe, and each four-way pipe has a vent valve on its outer wall. A vent pipe is located at the middle of one end of each of the two four-way pipes.

[0006] Preferably, the embossing mechanism includes connecting plates, and there are two sets of connecting plates. An embossing roller is rotatably arranged between the two connecting plates. An auxiliary roller is provided on one side of the embossing roller, and the two ends of the auxiliary roller are connected to the upper side of the two connecting plates through mounting rods.

[0007] Preferably, the infusion mechanism includes a storage tank, a delivery pump is provided on one side of the upper end of the storage tank, an input pipe is provided at the input end of the delivery pump and extends through into the interior of the storage tank, an infusion pipe is provided at the output end of the delivery pump and the output end of the infusion pipe passes through the storage tank and the tank body and extends to one side of the tank body, a horizontal pipe is provided at one end of the infusion pipe, one side of the horizontal pipe is fixed to one side of the tank body by a mounting block, and an injection pipe is provided on one side of the horizontal pipe. One end of the injection pipe is C-shaped, and there are three injection pipes. One end of the three injection pipes is connected to one end of three cooling mechanisms.

[0008] Preferably, the driving mechanism includes three rotating rods, each extending through one end to one side of a support plate. A driving gear is provided on one side of the outer wall of each of the three rotating rods, and a transmission wheel is provided on the other side of the outer wall of each of the three rotating rods. The multiple transmission wheels are connected by a transmission belt. One end of one of the rotating rods is equipped with a driving motor, which is connected to one side of the support plate via a fixing block. Each of the multiple driving gears has a transmission gear meshing on one side, and there are three sets of transmission gears. Each of the three transmission gears is connected to one end of one of three sets of cooling mechanisms. A slip ring is provided on one side of the support plate corresponding to one side of the multiple transmission gears. A sliding rod is slidably provided on one side of each slip ring, and the sliding rods are connected to one side of each of the multiple transmission gears.

[0009] Preferably, the cooling mechanism includes a cooling cylinder, a first rotary joint is provided in the middle of one side of the cooling cylinder, one end of the first rotary joint extends through into the interior of the cooling cylinder, a connecting pipe is provided at one end of the first rotary joint, threaded pipes are provided on one side of the connecting pipe, the two threaded pipes are symmetrically distributed, a ring pipe is provided at the other end of the two threaded pipes, a stabilizing rod is provided at one end of the connecting pipe, one ring pipe is sleeved on one side of the outer wall of the connecting pipe, the other ring pipe is sleeved on one side of the outer wall of the stabilizing rod, the two ring pipes are connected by a liquid passage pipe, the two sides of the outer wall of the stabilizing rod are connected to one side of the corresponding ring pipe by stabilizing blocks, the outer wall of the connecting pipe is connected to the inner wall of the corresponding ring pipe by a connecting ring, a liquid outlet pipe is provided on one side of the inner wall of one of the ring pipes, one end of the liquid outlet pipe extends through the tank body and the liquid storage tank and into the interior of the liquid storage tank, a second rotary joint is provided at one end of the liquid outlet pipe, a rotating block is provided on one side of the cooling cylinder, a stabilizing disk is rotatably provided on the outer wall of the rotating block, one side of the stabilizing disk is connected to one side of the tank body by a connecting rod.

[0010] Preferably, the precooling mechanism includes stabilizing plates, with the lower ends of two stabilizing plates connected to the upper end of a base plate. The stabilizing plates are inclined, and purge air knives are symmetrically arranged at the upper and lower parts between the two stabilizing plates. A rotating shaft is provided on one side of each of the two purge air knives, and the two rotating shafts extend through to one side of one of the stabilizing plates. A toggle block is provided at one end of each of the two rotating shafts, and an electric telescopic rod is provided on one side of one of the stabilizing plates. A moving block is provided at the output end of the electric telescopic rod, and a toggle lever is rotatably provided at both ends of each of the two moving blocks. One end of each of the two toggle levers is connected to one end of each of the two toggle blocks.

[0011] Preferably, each of the two purge air knives is provided with an air inlet pipe at one end, and each of the two air inlet pipes extends through to one side of the corresponding stabilizing plate. Each of the two air inlet pipes is provided with a third rotating joint at one end, and each of the two third rotating joints is provided with a fixing pipe at one end. The fixing pipe is C-shaped, and an air injection pipe is provided in the middle of one side of the fixing pipe.

[0012] Preferably, each of the two dehumidifying cylinders has a stabilizing ring on one side, and a rotating groove is formed on one side of each of the two stabilizing rings. A rotating rod is slidably arranged inside each of the two rotating grooves. One end of several of the rotating rods and one end of several other rotating rods are respectively connected to one end of the two dehumidifying cylinders. Micropores are formed on the outer wall of each of the two dehumidifying cylinders.

[0013] Preferably, both ends of the two dehumidification cylinders are provided with vent pipes, and there are four sets of vent pipes. The four vent pipes extend through to both sides of the two dehumidification cylinders respectively. One end of each of the multiple vent pipes is provided with a fourth rotating joint. One end of two of the fourth rotating joints and one end of the other two fourth rotating joints are provided with a stabilizing pipe. The middle of one side of each of the two stabilizing pipes is provided with an air supply pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: After the coolant is fed in from the shaft, it is distributed to both sides simultaneously through symmetrical flow channels, forming a uniform circumferential circulation. This completely eliminates the axial temperature gradient problem caused by the traditional unilateral flow direction, ensuring that the temperature of the entire working surface of the cooling cylinder is highly consistent. This makes the cooling rate of the leather the same at all points in the lateral direction during the cooling process, effectively avoiding quality defects such as leather shrinkage and deformation, internal stress concentration, and curling caused by uneven cooling, and significantly improving the dimensional stability and appearance flatness of the product.

[0015] The pre-cooling mechanism uses a swing-type air knife to cool the high-temperature leather in a non-contact manner, which can effectively dissipate the high-temperature and humid air layer on the surface of the leather and reduce the surface temperature of the leather before contacting the cooling roller. This reduces the occurrence of a large amount of condensation water mist due to intense heat exchange in the subsequent process, creating more stable process conditions for the subsequent cooling process.

[0016] By setting a dehumidification mechanism at the end of the cooling process, residual moisture and water mist on the leather surface are adsorbed and removed, while the reverse airflow is used to self-clean the micropores in the non-working area. This ensures the long-term stability of the dehumidification performance, allowing the leather to reach a dry surface before rolling. It avoids coating adhesion, mildew, and other problems caused by moisture accumulation inside the roll, significantly improving the quality of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the meshing structure of the drive gear and the transmission gear of the present invention; Figure 3 This is a schematic diagram showing the distribution structure of the three cooling mechanisms of the present invention; Figure 4 This is a schematic diagram of the installation structure of the infusion mechanism of the present invention; Figure 5 This is a schematic diagram of the connection structure between the two sets of threaded tubes and the cooling cylinder of the present invention; Figure 6 This is a schematic diagram of the connection structure of the two sets of threaded pipes, ring pipes and liquid passage pipes of the present invention; Figure 7 This is a schematic diagram of the overall structure of the precooling mechanism of the present invention; Figure 8 This is a schematic diagram of the connection structure between the air inlet pipe, the third rotary joint, and the fixed pipe of the present invention. Figure 9 This is a schematic diagram of the connection structure between the baffle and the partition of the present invention; Figure 10 This is a schematic diagram of the connection structure between the separator plate and the dehumidifier cylinder of the present invention.

[0018] In the diagram: 1. Base plate; 2. Connecting plate; 3. Embossing roller; 4. Auxiliary roller; 5. Guide roller; 6. Housing; 7. Support plate; 8. Storage tank; 9. Delivery pump; 10. Infusion pipe; 11. Horizontal pipe; 12. Injection pipe; 13. First rotating joint; 14. Rotating rod; 15. Drive gear; 16. Transmission wheel; 17. Transmission belt; 18. Drive motor; 19. Transmission gear; 20. Cooling cylinder; 21. Connecting pipe; 22. Threaded pipe; 23. Stabilizing bar; 24. Ring pipe; 25. Through... 26. Liquid pipe; 27. Liquid outlet pipe; 28. Second rotary joint; 29. ​​Rotating block; 30. Stabilizing disc; 31. Stabilizing plate; 32. Purge air knife; 33. Actuating block; 34. Electric telescopic rod; 35. Moving block; 36. Actuating rod; 37. Air inlet pipe; 38. Third rotary joint; 39. Fixed pipe; 40. Stabilizing ring; 41. Rotating rod; 42. Dehumidifier cylinder; 43. Baffle; 44. Partition plate; 45. Stabilizing pipe; 46. Fourth rotary joint; 47. Vent pipe; 48. Four-way pipe. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0021] like Figures 1-10 The water-cooled cooling equipment for water-based leather production shown includes a base plate 1, an embossing mechanism on one side of the base plate 1 for embossing the water-based leather, a box 6 on one side of the base plate 1, a support plate 7 on the side of the base plate 1 away from the box 6, a guide roller 5 on the lower part of one side of the box 6 to lower the height of the water-based leather so that its lower surface fits against the cooling mechanism, a liquid delivery mechanism on the lower middle part of the inner wall of the box 6, and three sets of cooling mechanisms rotatably mounted on one side of the box 6 in a staggered arrangement. A drive mechanism is mounted on one side of the support plate 7 corresponding to multiple cooling mechanisms, a pre-cooling mechanism is mounted on the upper side of the base plate 1, and a dehumidification mechanism is rotatably mounted on one side of the support plate 7, with the dehumidification mechanism located on one side of the cooling mechanism. The guide roller 5 is used to guide and change the path of the water-based leather, so that its lower surface can stably adhere to the cooling mechanism. The staggered distribution of the three cooling mechanisms is designed to make the water-based leather form a wave-shaped contact path, so as to prolong the cooling contact time and achieve uniform cooling on both sides. The drive mechanism provides synchronous rotation power for all cooling mechanisms to smoothly pull the water-based leather. The pre-cooling mechanism is located between the embossing mechanism and the guide roller 5. It pre-cools the leather surface and dissipates the humid air layer through non-contact forced convection. The dehumidification mechanism is set on one side of the cooling mechanism. It can actively adsorb and remove residual moisture on the leather surface to ensure that the process drying requirements are met before winding. The liquid delivery mechanism is responsible for providing a stable low-temperature cooling medium for the entire cooling cycle.

[0022] like Figures 1-3 As shown: The embossing mechanism includes a connecting plate 2, and there are two sets of connecting plates 2. An embossing roller 3 is rotatably arranged between the two connecting plates 2. An auxiliary roller 4 is arranged on one side of the embossing roller 3. The two ends of the auxiliary roller 4 are connected to the upper side of the two connecting plates 2 through mounting rods. Water-based leather passes between the embossing roller 3 and the auxiliary roller 4 to achieve embossing treatment on the upper surface of the water-based leather. The embossing roller 3 has a specific pattern engraved on its surface. The auxiliary roller 4, as the driven roller, has an elastic layer on its surface and forms a pressure zone with controllable pressure between it and the embossing roller 3. When the water-based leather passes through the pressure zone, its surface coating undergoes plastic deformation, thereby accurately replicating the texture pattern on the surface of the embossing roller 3 and completing the embossing process.

[0023] like Figure 4 As shown: The infusion mechanism includes a storage tank 8, which is equipped with a cooling device to ensure the uniformity of the temperature of the coolant inside the storage tank 8. A delivery pump 9 is installed on one side of the upper end of the storage tank 8. An input pipe is installed at the input end of the delivery pump 9, which extends through into the storage tank 8. A delivery pipe 10 is installed at the output end of the delivery pump 9. The output end of the delivery pipe 10 passes through the storage tank 8 and the tank body 6 and extends to one side of the tank body 6. A horizontal pipe 11 is installed at one end of the delivery pipe 10. One side of the horizontal pipe 11 is fixed to one side of the tank body 6 by a mounting block. Each side of the horizontal pipe 11 is equipped with an injection pipe 12. One end of the injection pipe 12 is C-shaped. There are three injection pipes 12. One end of each of the three injection pipes 12 is connected to one end of each of the three cooling mechanisms. The cooling equipment in the storage tank 8 is used to cool the return liquid to the set temperature. The delivery pump 9 provides circulation power and distributes the coolant to the three cooling mechanisms through the parallel delivery pipe 10, horizontal pipe 11 and three injection pipes 12. The injection pipes 12 are connected to the cooling mechanisms through rotary joints to achieve sealed delivery between static and dynamic interfaces.

[0024] like Figures 2-3As shown: The drive mechanism includes three rotating rods 14. One end of each of the three rotating rods 14 extends through to one side of the support plate 7. A drive gear 15 is provided on one side of the outer wall of each of the three rotating rods 14, and a transmission wheel 16 is provided on the other side of the outer wall of each of the three rotating rods 14. The multiple transmission wheels 16 are connected by a transmission belt 17. One end of one of the rotating rods 14 is provided with a drive motor 18. The drive motor 18 is connected to one side of the support plate 7 through a fixing block. One side of each of the multiple drive gears 15 is provided with a transmission gear 19. There are three sets of transmission gears 19. One side of each of the three transmission gears 19 is connected to one end of a cooling mechanism. A slip ring is provided on one side of the support plate 7 corresponding to one side of the multiple transmission gears 19. A sliding rod is slidably provided on one side of each slip ring. The multiple sliding rods are connected to one side of each of the multiple transmission gears 19. The drive motor 18 drives the three rotating rods 14 to rotate synchronously through the transmission belt 17, and then transmits the power to each cooling mechanism through the meshing of the drive gear 15 and the transmission gear 19. The slip ring and the slide rod improve the stability of the cooling mechanism during rotation, realizing the synchronous drive of the three cooling mechanisms and the smooth traction of the water-based leather.

[0025] like Figures 5-6 As shown: The cooling mechanism includes a cooling cylinder 20. A first rotary joint 13 is located in the middle of one side of the cooling cylinder 20. One end of the first rotary joint 13 extends into the interior of the cooling cylinder 20. A connecting pipe 21 is provided at one end of the first rotary joint 13. Threaded pipes 22 are provided on one side of the connecting pipe 21, and the two threaded pipes 22 are symmetrically distributed. A ring pipe 24 is provided at the other end of each of the two threaded pipes 22. A stabilizing rod 23 is provided at one end of the connecting pipe 21. One ring pipe 24 is fitted onto one side of the outer wall of the connecting pipe 21, and the other ring pipe 24 is fitted onto one side of the outer wall of the stabilizing rod 23. The two rings 24 are connected by a liquid pipe 25. The outer walls of the stabilizer 23 are connected to one side of the corresponding ring pipe 24 by a stabilizer block. The outer wall of the connecting pipe 21 is connected to the inner wall of the corresponding ring pipe 24 by a connecting ring. One side of the inner wall of one of the ring pipes 24 is provided with a liquid outlet pipe 26. One end of the liquid outlet pipe 26 passes through the box 6 and the liquid storage tank 8 and extends into the liquid storage tank 8. One end of the liquid outlet pipe 26 is provided with a second rotating joint 27. A rotating block 28 is provided on one side of the cooling cylinder 20. A stabilizer 29 is rotatably provided on the outer wall of the rotating block 28. One side of the stabilizer 29 is connected to one side of the box 6 by a connecting rod. Coolant is fed from the shaft through the first rotary joint 13 and connecting pipe 21, distributed to two annular pipes 24 through symmetrical threaded pipes 22, and then forms a circumferential circulation through the liquid flow pipe 25, achieving uniform heat exchange with the inner wall of the cooling cylinder 20. The stabilizing rod 23 and connecting components form the internal flow channel support skeleton, and the rotating block 28 and stabilizing disk 29 constitute the rotational support at the other end of the cooling cylinder 20. This ensures the uniformity of cooling effect and operational stability.

[0026] like Figures 7-8As shown: The precooling mechanism includes two stabilizing plates 30. The lower ends of the two stabilizing plates 30 are connected to the upper end of the base plate 1. The stabilizing plates 30 are inclined. Purge air knives 31 are symmetrically arranged at the upper and lower parts between the two stabilizing plates 30. A rotating shaft is provided on one side of each of the two purge air knives 31. The two rotating shafts extend through to one side of one of the stabilizing plates 30. A toggle block 32 is provided at one end of each of the two rotating shafts. An electric telescopic rod 33 is provided on one side of one of the stabilizing plates 30. A moving block 34 is provided at the output end of the electric telescopic rod 33. Both ends of the two moving blocks 34 are rotated. The device is equipped with two levers 35, one end of which is connected to one end of two levers 32 respectively. Each of the two purge air knives 31 is provided with an air inlet pipe 36 at one end. One end of each air inlet pipe 36 extends through to one side of the corresponding stabilizing plate 30. Each of the two air inlet pipes 36 is provided with a third rotating joint 37 at one end. One end of each third rotating joint 37 is provided with a fixed pipe 38. The fixed pipe 38 is C-shaped. An air injection pipe is provided in the middle of one side of the fixed pipe 38. The air injection pipe is connected to the outer wall blowing equipment to inject cold air into the purge air knives 31. A buffer mechanism is connected to the outer wall of the air inlet pipe 36 to ensure the stability of the purge air knife 31 when it swings. The buffer mechanism includes an arc ring, which is connected to one side of the corresponding stabilizing plate 30 through a connecting block. Buffer blocks are connected to the outer wall of each air inlet pipe 36. The buffer blocks slide on the outer wall of the arc ring. Buffer springs are sleeved on the outer wall of each arc ring. The buffer springs buffer the buffer blocks. When the air inlet pipe 36 rotates, it drives the buffer blocks to slide on the outer wall of the arc ring. The buffer springs can buffer the buffer blocks. Bearings are embedded in the stabilizing plate 30 at the two air inlet pipes 36. The air inlet pipe 36 is rotatably connected to the stabilizing plate 30 through the bearings.

[0027] The electric telescopic rod 33 pushes the moving block 34 to reciprocate horizontally. Through the linkage mechanism of the toggle rod 35 and the toggle block 32, it is converted into the synchronous counter-oscillation of two purge air knives 31 around their respective axes, thereby expanding the coverage of the cold air and enhancing the disturbance effect on the air layer trapped on the surface of the water-based leather. The low-temperature dry airflow provided by the external refrigeration equipment is delivered to the inside of the purge air knives 31 through the air injection pipe, the fixed pipe 38, the third rotating joint 37 and the air receiving pipe 36. Finally, a uniform air curtain is formed from its slit nozzle, which effectively reduces the surface temperature and humidity of the water-based leather before it comes into contact with the cooling mechanism, creating favorable conditions for suppressing the subsequent formation of condensate mist.

[0028] like Figures 9-10As shown: The dehumidification mechanism includes two sets of dehumidification cylinders 41. Baffles 42 are installed on both sides of the inner wall of each dehumidification cylinder 41. A partition 43, shaped like a cross, is installed between the two baffles 42, dividing the interior of each dehumidification cylinder 41 into four dehumidification chambers. Each baffle 42 is equipped with a four-way pipe 47, and each four-way pipe 47 has a vent valve on its outer wall. A vent pipe 46 is installed at the middle of one end of each of the two four-way pipes 47. A stabilizing ring 39 is installed on one side of each of the two dehumidification cylinders 41, and a rotating groove is formed on one side of each of the two stabilizing rings 39. A rotating rod 40 is slidably installed inside each of the two rotating grooves. One end of several rotating rods 40 and the other end of several rotating rods 40 are respectively connected to one end of each of the two dehumidification cylinders 41. Micropores are formed on the outer wall of each of the two dehumidification cylinders 41, and a vent is provided at both ends of each of the two dehumidification cylinders 41. There are four sets of air pipes 46, which extend through to both sides of the two dehumidification cylinders 41. Each of the multiple air pipes 46 is equipped with a fourth rotating joint 45 at one end. One end of two of the fourth rotating joints 45 and the other two fourth rotating joints 45 are equipped with a stabilizing pipe 44. An air supply pipe is provided in the middle of one side of each of the two stabilizing pipes 44. The air supply pipe on the side near the support plate 7 is connected to the dehumidification equipment. One end of the dehumidification equipment is connected to a vacuum pump to provide vacuum suction function for the inside of the dehumidification cylinder 41. The air supply pipe on the side near the box 6 is connected to the air blowing equipment to realize air blowing into the inside of the dehumidification cylinder 41. When the cavity near the water-based leather gas is being suctioned, the air blowing equipment blows air into the other three cavities inside the dehumidification cylinder 41 to prevent blockage and clean the micropores on the outer wall of the dehumidification cylinder 41. Each end of the dehumidification cylinder 41 is connected to a four-way pipe 47, which is connected to the vacuum pump (left end) and the drying blowing system (right end) through the stabilizing pipe 44 respectively. The four ports of each four-way pipe 47 are connected to the four independent chambers of the dehumidification cylinder 41 through the vent pipe 46. Each port is equipped with a controlled vent valve, which is a solenoid valve. The system control unit synchronously controls the solenoid valves at both ends according to the rotation position of the dehumidification cylinder 41. The basic principle is "one end is open and three are closed, the other end is open and one is closed, and the states are reversed and synchronized". For example, when cavity A rotates to the working area (contacting leather), the left end (vacuum side) four-way pipe 47 only opens the solenoid valve connected to cavity A to perform vacuum adsorption, while the right end (air blowing side) four-way pipe 47 simultaneously closes the solenoid valve connected to cavity A and opens the solenoid valves connected to cavities B, C, and D to perform positive pressure purging, so as to achieve cleaning and anti-clogging of non-working cavities; As the dehumidifier cylinder 41 rotates, the control system cycles through the states of each solenoid valve in a 90-degree cycle, ensuring that the four chambers undergo "adsorption" and "purging" operations in sequence.

[0029] The specific model of the venting valve, the circuit connection method of the actuator, and the programming control method with the PLC or controller are all conventional technical means and existing technologies in this field, and are well known to those skilled in the art. Therefore, the specific implementation details will not be elaborated here.

[0030] It should be noted that the specific circuit connection methods, control logic programming and signal feedback mechanisms of all actuators, such as the drive motor 18, delivery pump 9, electric telescopic rod 33, air source control valve of the purging air knife 31, vacuum pump in the dehumidification mechanism, and air blowing equipment involved in the embodiments of the present invention, all belong to conventional technical means and existing technology in this field, and therefore will not be described in detail here.

[0031] Working principle: The water-based leather substrate first passes through the embossing mechanism consisting of embossing roller 3 and auxiliary roller 4, forming the desired pattern on its upper surface. The leather changes its path through the guide roller 5, preparing its lower surface to contact the subsequent cooling mechanism.

[0032] The output end of the electric telescopic rod 33 pulls the moving block 34 connected to it to reciprocate. The moving block 34 drives two levers 35 to swing. The levers 35 are connected to the levers 32. When the moving block 34 moves back and forth, the levers 35 drive the levers 32 to swing back and forth with the blowing air knife 31. The swing of the blowing air knife 31 can evenly penetrate the surface of the water-based leather. The external cold air equipment supplies low-temperature dry airflow to the blowing air knife 31 through the fixed pipe 38, the third rotating joint 37 and the air inlet pipe 36 to directly impact the surface of the water-based leather and pre-cool the surface.

[0033] The pre-cooled water-based leather changes its path via guide roller 5, so that its upper and lower surfaces come into contact with the subsequent cooling mechanism. The upper and lower surfaces of the water-based leather respectively come into contact with the outer surfaces of the three cooling cylinders 20. The drive motor 18 drives the three rotating rods 14 synchronously via the transmission belt 17, and then through the meshing of the drive gear 15 and the transmission gear 19, the three cooling cylinders 20 rotate synchronously, pulling the leather forward in a wave-shaped path, thereby extending the cooling contact time and realizing double-sided heat exchange.

[0034] The low-temperature coolant in the storage tank 8 is pumped out by the delivery pump 9 and delivered to the first rotary joint 13 of each cooling cylinder 20 through the delivery pipe 10, the horizontal pipe 11 and the injection pipe 12. The coolant inside the first rotary joint 13 flows into the connecting pipe 21. The coolant in the connecting pipe 21 is led out through two threaded pipes 22. The two threaded pipes 22 guide the coolant into two ring pipes 24 respectively. After entering the two ring pipes 24, the coolant flows from the middle to both ends in the cooling cylinder 20 through the liquid passage pipe 25 connecting the two ring pipes 24. The coolant in the two ring pipes 24 is led out through the second rotary joint 27 and the liquid outlet pipe 26 and delivered to the storage tank 8 for cooling, thus completing the circulating cooling.

[0035] Before being rolled up, the leather that has completed the main cooling process undergoes dehumidification treatment on the surface of the water-based leather by two dehumidification cylinders 41. When the water-based leather is conveyed to one side, it pulls and drives the two dehumidification cylinders 41 to rotate, causing the rotating rod 40 to slide inside the stabilizing ring 39. The vacuum pump is connected to the designated partitioned chamber inside the dehumidification cylinder 41 through the stabilizing pipe 44, the fourth rotating joint 45 and the vent pipe 46 near the support plate 7. When a partitioned chamber rotates to the working area that contacts the leather surface, its corresponding vent valve opens, causing the partitioned chamber to generate a strong vacuum suction force, directly removing the water mist and moisture adhering to the leather surface and the grooves in the texture. At the same time, the air blowing device opens the three ventilation valves of the three partitioned chambers that are not in contact with the water-based leather through the pipes near the side of the housing 6, injecting dry airflow into the other three non-working chambers. This airflow penetrates the micropores on the wall of the dehumidifier cylinder 41 from the inside out, achieving reverse blowing of the micropores on the surface of the dehumidifier cylinder 41, blowing out any fine impurities that may be sucked in, preventing the micropores from becoming clogged, and keeping the chambers and micropores dry to avoid bacterial growth.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A water-cooled cooling device for water-based leather production, comprising a base plate (1), characterized in that, An embossing mechanism is provided on one side of the base plate (1), which is used to emboss water-based leather. A box (6) is provided on one side of the base plate (1), a support plate (7) is provided on the side of the base plate (1) away from the box (6), a guide roller (5) is provided on the lower part of one side of the box (6), and an infusion mechanism is provided in the middle of the lower end of the inner wall of the box (6). The box (6) is provided with a cooling mechanism on one side, and there are three sets of cooling mechanisms. The three sets of cooling mechanisms are distributed at different heights. The support plate (7) is provided with a drive mechanism on one side corresponding to multiple cooling mechanisms. A pre-cooling mechanism is provided on one side of the upper end of the base plate (1), and a dehumidification mechanism is rotatably provided on one side of the support plate (7). The dehumidification mechanism is located on one side of the cooling mechanism. The dehumidification mechanism includes a dehumidification cylinder (41), and there are two sets of dehumidification cylinders (41). Baffles (42) are provided on both sides of the inner wall of the dehumidification cylinder (41). A partition (43) is provided between the two baffles (42). The partition (43) is arranged in a cross shape. The partition (43) divides the interior of the dehumidification cylinder (41) into four dehumidification chambers. A four-way pipe (47) is provided on both baffles (42). A vent valve is provided on the outer wall of the four-way pipe (47). A vent pipe (46) is provided in the middle of one end of the two four-way pipes (47).

2. The water-cooled cooling equipment for water-based leather production according to claim 1, characterized in that, The embossing mechanism includes a connecting plate (2), and there are two sets of connecting plates (2). An embossing roller (3) is rotatably arranged between the two connecting plates (2). An auxiliary roller (4) is arranged on one side of the embossing roller (3). The two ends of the auxiliary roller (4) are connected to one side of the upper end of the two connecting plates (2) through mounting rods.

3. The water-cooled cooling equipment for water-based leather production according to claim 1, characterized in that, The infusion mechanism includes a storage tank (8), a delivery pump (9) is provided on one side of the upper end of the storage tank (8), an input pipe is provided at the input end of the delivery pump (9), the input pipe extends through and into the interior of the storage tank (8), an infusion pipe (10) is provided at the output end of the delivery pump (9), the output end of the infusion pipe (10) passes through the storage tank (8) and the box body (6) and extends to one side of the box body (6), a horizontal pipe (11) is provided at one end of the infusion pipe (10), one side of the horizontal pipe (11) is fixed to one side of the box body (6) by a mounting block, an injection pipe (12) is provided on one side of the horizontal pipe (11), one end of the injection pipe (12) is C-shaped, there are three injection pipes (12), one end of the three injection pipes (12) is connected to one end of three cooling mechanisms.

4. The water-cooled cooling equipment for water-based leather production according to claim 1, characterized in that, The driving mechanism includes three rotating rods (14). One end of each of the three rotating rods (14) extends through to one side of the support plate (7). A driving gear (15) is provided on one side of the outer wall of each of the three rotating rods (14). A transmission wheel (16) is provided on the other side of the outer wall of each of the three rotating rods (14). The multiple transmission wheels (16) are connected by a transmission belt (17). One end of one of the rotating rods (14) is provided with a driving motor (18). The driving motor (18) is connected to one side of the support plate (7) through a fixing block. A transmission gear (19) is meshed on one side of each of the multiple driving gears (15). There are three sets of transmission gears (19). One side of each of the three transmission gears (19) is connected to one end of each of the three sets of cooling mechanisms. A slip ring is provided on one side of the support plate (7) corresponding to one side of the multiple transmission gears (19). A sliding rod is slidably provided on one side of each of the multiple slip rings. The multiple sliding rods are connected to one side of each of the multiple transmission gears (19).

5. A water-cooled cooling device for water-based leather production according to claim 1, characterized in that, The cooling mechanism includes a cooling cylinder (20). A first rotating joint (13) is provided in the middle of one side of the cooling cylinder (20). One end of the first rotating joint (13) extends through into the interior of the cooling cylinder (20). A connecting pipe (21) is provided at one end of the first rotating joint (13). Threaded pipes (22) are provided on one side of each connecting pipe (21). The two threaded pipes (22) are symmetrically distributed. A ring pipe (24) is provided at the other end of each of the two threaded pipes (22). A stabilizing rod (23) is provided at one end of each connecting pipe (21). One ring pipe (24) is fitted onto one side of the outer wall of the connecting pipe (21), and the other ring pipe (24) is fitted onto one side of the outer wall of the stabilizing rod (23). The two ring pipes (24) are connected in a symmetrical manner. 4) The two sides of the outer wall of the stabilizer (23) are connected by a liquid pipe (25). The outer walls of the stabilizer (23) are connected to the corresponding ring pipe (24) by a stabilizer block. The outer wall of the connecting pipe (21) is connected to the inner wall of the corresponding ring pipe (24) by a connecting ring. One side of the inner wall of one of the ring pipes (24) is provided with a liquid outlet pipe (26). One end of the liquid outlet pipe (26) passes through the box (6) and the liquid storage tank (8) and extends into the liquid storage tank (8). One end of the liquid outlet pipe (26) is provided with a second rotating joint (27). One side of the cooling cylinder (20) is provided with a rotating block (28). The outer wall of the rotating block (28) is rotatably provided with a stabilizer plate (29). One side of the stabilizer plate (29) is connected to one side of the box (6) by a connecting rod.

6. A water-cooled cooling device for water-based leather production according to claim 1, characterized in that, The precooling mechanism includes a stabilizing plate (30), the lower ends of two stabilizing plates (30) are connected to the upper end of the base plate (1), the stabilizing plates (30) are inclined, and purge air knives (31) are symmetrically arranged at the upper and lower parts between the two stabilizing plates (30). A rotating shaft is provided on one side of each of the two purge air knives (31), and the two rotating shafts extend through to one side of one of the stabilizing plates (30). A toggle block (32) is provided at one end of each of the two rotating shafts, and an electric telescopic rod (33) is provided on one side of one of the stabilizing plates (30). A moving block (34) is provided at the output end of the electric telescopic rod (33), and a toggle rod (35) is rotatably provided at both ends of each of the two moving blocks (34). One end of each toggle rod (35) is connected to one end of each toggle block (32).

7. A water-cooled cooling device for water-based leather production according to claim 6, characterized in that, Each of the two purge air knives (31) is provided with an air inlet pipe (36) at one end. Each of the two air inlet pipes (36) extends through to one side of the corresponding stabilizing plate (30). Each of the two air inlet pipes (36) is provided with a third rotating joint (37) at one end. Each of the two third rotating joints (37) is provided with a fixing pipe (38) at one end. The fixing pipe (38) is C-shaped. An air injection pipe is provided in the middle of one side of the fixing pipe (38).

8. A water-cooled cooling device for water-based leather production according to claim 1, characterized in that, Each of the two dehumidifying cylinders (41) is provided with a stabilizing ring (39) on one side. A rotating groove is provided on one side of each of the two stabilizing rings (39). A rotating rod (40) is slidably provided inside each of the two rotating grooves. One end of several of the rotating rods (40) and one end of several other rotating rods (40) are respectively connected to one end of the two dehumidifying cylinders (41). Micropores are provided on the outer wall of each of the two dehumidifying cylinders (41).

9. A water-cooled cooling device for water-based leather production according to claim 1, characterized in that, Both ends of the two dehumidification cylinders (41) are provided with vent pipes (46). There are four sets of vent pipes (46). The four vent pipes (46) extend through to both sides of the two dehumidification cylinders (41). One end of each of the multiple vent pipes (46) is provided with a fourth rotating joint (45). One end of two of the fourth rotating joints (45) and one end of the other two fourth rotating joints (45) are provided with a stabilizing pipe (44). One middle part of one side of each of the two stabilizing pipes (44) is provided with an air supply pipe.

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