An integrated artificial leather production device and a method of using the same

Abstract

The present application relates to the technical field of artificial leather production equipment, and particularly relates to an integrated artificial leather production device and a use method thereof, which comprises a rack, a feeding mechanism, a glue coating mechanism, a bubble removing mechanism, a heating and solidifying mechanism and a winding mechanism are sequentially arranged on the rack along a material conveying direction, and a controller is installed on the front side of the rack; the feeding mechanism comprises two unwinding rollers which are rotatably installed on the rack from top to bottom, and are respectively used for releasing different leather raw materials; the glue coating mechanism comprises a glue bin which is fixedly installed on the rack and a brush assembly which is matched with the glue bin. The present application integrates the whole process of feeding, glue coating, bubble removing, heating and solidifying, heat dissipation and winding into a single rack, greatly reduces the equipment floor area, improves the production continuity and efficiency, and adopts a combination of heat-conducting oil basic heating and flexible electric auxiliary heating which is suitable for various thicknesses of leather products and is suitable for various artificial leather composite production scenes.

Description

Technical Field

[0001] This invention relates to the field of polymer material molding and processing and oral care product technology, specifically to an integrated artificial leather production device and its usage method. Background Technology

[0002] The production of composite artificial leather is a process of bonding multiple layers of leather substrates with different functions into one piece using adhesives. It usually requires multiple steps such as gluing, bonding, air removal, curing, and winding.

[0003] In existing technologies, the bonding of artificial leather involves first bonding each layer with adhesive (glue). After bonding, a scraping device is used to remove air bubbles between the two layers of leather. After removing the air bubbles, a heating device is used for curing to ensure that the leather is bonded together. This process involves bonding, scraping, and high-temperature curing, which are three separate steps using three separate devices. This results in low integration, large equipment footprint, and low efficiency. Materials need to be transferred between different devices, leading to discontinuous production processes, low efficiency, high labor costs, and unstable product quality. Summary of the Invention

[0004] To address the technical problems existing in the prior art, this invention proposes an integrated artificial leather production device and its usage method, which integrates the entire process of gluing, venting, curing, and winding into a single device. It also has the advantages of high gluing precision, good venting effect, flexible heating mode, and strong production safety, which can significantly improve the efficiency and product quality of artificial leather composite production.

[0005] To achieve the above objectives, the present invention provides an integrated artificial leather production device, including a frame, on which a feeding mechanism, an adhesive coating mechanism, an air bubble removal mechanism, a heating and curing mechanism and a winding mechanism are sequentially arranged along the material conveying direction, and a controller is installed on the front side of the frame;

[0006] The feeding mechanism includes two unwinding rollers mounted on the frame from top to bottom, which are used to release different leather raw materials respectively;

[0007] The glue application mechanism includes a glue tank fixedly installed on the frame and a brush assembly that cooperates with the glue tank. The brush assembly is partially immersed in the glue liquid in the glue tank and applies the glue liquid evenly to the leather surface.

[0008] The bubble removal mechanism includes two rows of symmetrically distributed exhaust rollers, with three exhaust rollers in each row arranged linearly along the material conveying direction. The lower row of exhaust rollers is rotatably connected to the frame, and an adjustment mechanism is provided between the upper row of exhaust rollers. The two rows of exhaust rollers form a continuous pressing and venting mechanism for the bonded leather.

[0009] The heating and curing mechanism includes a heat transfer oil heating roller, an electric auxiliary heating device, a temperature detection unit, and two downward pressure rollers;

[0010] The winding mechanism includes a winding device and a heat dissipation device mounted on the frame, with the heat dissipation device located in front of the winding device.

[0011] Furthermore, the brush assembly includes a transfer roller, a brush roller, and several guide rollers. The transfer roller is rotatably disposed within the frame and partially immersed in the adhesive liquid in the adhesive tank. The brush roller is rotatably disposed within the frame and contacts the transfer roller. The several guide rollers are rotatably disposed within the frame and guide the leather to contact the brush roller and then enter the air bubble removal mechanism.

[0012] Furthermore, the ends of both the transfer roller and the brush roller penetrate the frame. A drive motor is fixedly installed on the front side of the frame. The output end of the drive motor is connected to the front end of the transfer roller. A transmission gear is fixedly sleeved on the rear end of the transfer roller. A follower gear that meshes with the transmission gear is fixedly sleeved on the rear end of the brush roller.

[0013] Furthermore, the heat transfer oil heating roller has a hollow structure with a heat transfer oil flow channel inside. Both ends of the heat transfer oil heating roller are connected to the external heat transfer oil delivery pipeline through rotary joints. The heat transfer oil is supplied by the plant boiler through the pipeline to provide basic heat for the curing process. The two lower pressure rollers are fixedly installed on the frame through bearing seats and are symmetrically distributed on both sides of the heat transfer oil heating roller.

[0014] Furthermore, the electric auxiliary heating device includes an arc-shaped base fixedly installed on the frame and matching the outer arc of the heat transfer oil heating roller. Multiple rows of evenly arranged connecting rods are fixedly connected to the lower part of the arc-shaped base. A telescopic gooseneck tube is fixedly connected to the end of each connecting rod away from the connecting rod. A connecting plate is fixedly connected between the ends of the telescopic gooseneck tubes at the bottom of each row of connecting rods. An electric heating wire is fixedly installed below the connecting plate.

[0015] Furthermore, the front and rear sides of the frame are respectively provided with through slots corresponding to the exhaust rollers of the upper row. Telescopic cylinders are respectively fixedly installed on the front and rear sides of the frame. Lifting plates are fixedly installed on the movable ends of the telescopic cylinders. The two ends of the exhaust rollers of the upper row pass through the through slots and are rotatably connected to the lifting plates.

[0016] Furthermore, the temperature detection unit includes multiple non-contact infrared temperature sensors respectively located at the inlet, middle and outlet positions of the heating area for real-time detection of the leather surface temperature, and several of the non-contact infrared temperature sensors and the electric heating wire are electrically connected to the controller.

[0017] Furthermore, the heat dissipation device includes an axial flow fan, a dust filter, and several auxiliary rollers. The auxiliary rollers are fixedly mounted on the frame via bearing seats. The axial flow fan is fixedly mounted inside the frame. The dust filter is fixedly connected to the inside of the frame and located between the axial flow fan and the dust filter.

[0018] As part of the same inventive concept, the present invention also provides a method of using an integrated artificial leather production device, comprising the following steps:

[0019] Step S1: Install the surface leather material and the base fabric leather material onto the upper and lower unwinding rollers respectively, and lead out the free ends of the surface layer and the base fabric layer respectively. After being guided by the guide roller, they pass through the gluing mechanism, the bubble removal mechanism, the heating and curing mechanism and the winding mechanism to complete the material feeding operation.

[0020] Step S2: Start the controller. The controller controls the drive motor to start. The drive motor drives the transfer roller to rotate. The transfer roller drives the brush roller to rotate in the opposite direction synchronously through the meshing of the transmission gear and follower gear at the rear end. The transfer roller picks up the glue from the glue tank and evenly transfers it to the surface of the brush roller. The brush roller evenly coats the glue on the surface of the base fabric layer.

[0021] Step S3: After the glue is applied, the base fabric layer merges with the surface layer under the guidance of the guide roller. The two layers of leather enter the bubble removal mechanism at the same time. The controller controls the telescopic cylinder to push the lifting plate downward, so that the three exhaust rollers in the upper row descend as a whole. The pressing pressure between the upper and lower exhaust rollers is adjusted. Under the continuous pressing of the three exhaust rollers in the upper and lower rows, the air bubbles between the two layers of leather are gradually discharged from the edges of both sides of the leather.

[0022] Step S4: After degassing, the bonded leather enters the heating and curing mechanism. Guided by two downward pressure rollers, the leather is tightly bonded to the surface of the heat transfer oil heating roller. The factory boiler circulates high-temperature heat transfer oil into the heat transfer oil heating roller through pipelines to provide basic curing heat. The controller controls the corresponding number and position of electric heating wires in the electric auxiliary heating device to be energized and heated according to the thickness and material parameters of the leather to be produced. The distance between the electric heating wires and the leather surface is adjusted by adjusting the bending angle and extension length of the telescopic gooseneck tube, thereby controlling the intensity of auxiliary heating.

[0023] Step S5: During the heating and curing process, non-contact infrared temperature sensors installed at the inlet, middle and outlet of the heating zone detect the surface temperature of the leather in real time and feed the temperature data back to the controller. The controller automatically adjusts the on / off state and power output of the electric heating wires according to the feedback data to maintain the curing temperature within the set process range. When the surface temperature of the leather is detected to exceed the set threshold, the controller immediately cuts off the power supply to all electric heating wires and triggers an audible and visual alarm.

[0024] Step S6: After curing, the leather enters the heat dissipation device. The auxiliary roller guides the leather through the heat dissipation area in an S-shaped path. The axial flow fan forces the leather to be cooled by air. The dust filter filters the dust and impurities in the cooling air and cools the surface temperature of the leather to below ℃.

[0025] Step S7: The cooled leather enters the winding device, which, under the control of the tension regulating roller, evenly winds the finished artificial leather into a roll with a constant winding tension.

[0026] In the above, the telescopic cylinder is an Airtac SC63×200-S standard cylinder, the telescopic gooseneck tube is a Dongguan Chenrui CR-2.7·30 series / Dongguan Bowei BW-ROHS-11 series, the drive motor is a Siemens 1LE0001-1AB42-1AA4 asynchronous motor, the non-contact infrared temperature sensor is an Omron E32-DC200 infrared temperature sensor, the axial flow fan is a Chint NF-300, the controller is a Siemens S7-1200 PLC, and any other products conforming to this invention are acceptable.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. By integrating the entire process of gluing, venting, curing, and winding into a single machine, the equipment is highly integrated, reducing the floor space required compared to traditional separate equipment. It eliminates the need for material handling, ensuring strong production continuity, improving production efficiency, and reducing labor costs.

[0029] 2. It adopts a combination of heat transfer oil basic heating and independently adjustable electric auxiliary heating, which can flexibly adjust the heating power and heating area according to the process requirements of different products, and has strong adaptability. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0031] Figure 1 This is a schematic diagram of the structure of an integrated artificial leather production device and its usage method according to the present invention. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of an integrated artificial leather production device and its usage method according to the present invention. Figure 2 ;

[0033] Figure 3 This is a schematic diagram of the structure of an integrated artificial leather production device and its usage method according to the present invention. Figure 3 ;

[0034] Figure 4This is a schematic diagram of the adhesive coating mechanism of an integrated artificial leather production device and its usage method according to the present invention.

[0035] Figure 5 This is a schematic diagram of an electrically auxiliary heating device for an integrated artificial leather production apparatus and its usage method according to the present invention.

[0036] Figure 6 This is a cross-sectional view of the heat-conducting oil heating roller in an integrated artificial leather production apparatus and its usage method according to the present invention.

[0037] Legend:

[0038] 1. Frame; 2. Unwinding roller; 3. Glue application mechanism; 31. Glue tank; 32. Brush assembly; 321. Glue transfer roller; 322. Brush roller; 323. Guide roller; 324. Drive motor; 325. Transmission gear; 326. Follower gear; 4. Air bubble removal mechanism; 41. Exhaust roller; 42. Telescopic cylinder; 43. Lifting plate; 5. Heating and curing mechanism; 51. Heat transfer oil heating roller; 52. Electric auxiliary heating device; 521. Arc-shaped base; 522. Connecting rod; 523. Telescopic gooseneck tube; 524. Connecting plate; 525. Electric heating wire; 53. Pressure roller; 6. Rewinding mechanism; 61. Rewinding device; 62. Heat dissipation device; 621. Axial flow fan; 622. Dustproof net; 623. Auxiliary roller; 7. Controller. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] like Figure 1-6 The present invention is illustrated in detail with reference to a specific embodiment, but does not limit the scope of the claims of the present invention in any way.

[0041] An integrated artificial leather production device and its usage method include a frame 1, on which a feeding mechanism, a gluing mechanism 3, a bubble removal mechanism 4, a heating and curing mechanism 5 and a winding mechanism 6 are arranged sequentially along the material conveying direction; and a controller 7 is installed on the front side of the frame 1.

[0042] The feeding mechanism includes two unwinding rollers 2 that rotate from top to bottom on the frame 1, which are used to release different leather raw materials respectively;

[0043] The glue application mechanism 3 includes a glue tank 31 fixedly installed on the frame 1 and a brush assembly 32 that cooperates with the glue tank 31. The brush assembly 32 is partially immersed in the glue liquid in the glue tank 31 and applies the glue liquid evenly to the leather surface.

[0044] The bubble removal mechanism 4 includes two rows of symmetrically distributed exhaust rollers 41, with three exhaust rollers 41 in each row and arranged linearly along the material conveying direction. The lower row of exhaust rollers 41 is rotatably connected to the frame 1, and an adjustment mechanism is provided between the upper row of exhaust rollers 41. The two rows of exhaust rollers 41 form a continuous pressing and venting mechanism for the bonded leather.

[0045] The heating and curing mechanism 5 includes a heat transfer oil heating roller 51, an electric auxiliary heating device 52, a temperature detection unit, and two pressure rollers 53;

[0046] The winding mechanism 6 includes a winding device 61 and a heat dissipation device 62 mounted on the frame 1, with the heat dissipation device 62 located in front of the winding device 61.

[0047] Furthermore, the brush assembly 32 includes a glue transfer roller 321, a brush roller 322, and several guide rollers 323. The glue transfer roller 321 is rotatably disposed within the frame 1 and partially immersed in the glue liquid in the glue tank 31. The brush roller 322 is rotatably disposed within the frame 1 and contacts the glue transfer roller 321. The several guide rollers 323 are rotatably disposed within the frame 1 and guide the leather to contact the brush roller 322 and then enter the air bubble removal mechanism 4.

[0048] Specifically, the glue transfer roller 321 first picks up the glue from the glue tank 31 and transfers it to the brush roller 322, which can form a glue film of uniform thickness on the surface of the glue transfer roller 321. Then, the glue is transferred to the leather surface through the brush roller 322, which greatly improves the uniformity of glue application. At the same time, the guide roller 323 can control the contact angle and wrap angle between the leather and the brush roller 322, ensuring the stability of the glue application process and avoiding problems such as missed coating or glue accumulation.

[0049] Furthermore, the ends of both the transfer roller 321 and the brush roller 322 penetrate the frame 1. A drive motor 324 is fixedly installed on the front side of the frame 1. The output end of the drive motor 324 is connected to the front end of the transfer roller 321. A transmission gear 325 is fixedly sleeved on the rear end of the transfer roller 321. A follower gear 326 that meshes with the transmission gear 325 is fixedly sleeved on the rear end of the brush roller 322.

[0050] Specifically, the drive motor 324 drives the glue transfer roller 321 to rotate, and through the transmission gear 325 and the follower gear 326, the brush roller 322 rotates in the opposite direction. The linear speeds of the glue transfer roller 321 and the brush roller 322 are consistent, which avoids uneven glue layer or glue splashing caused by relative sliding between the two rollers.

[0051] Furthermore, the heat transfer oil heating roller 51 has a hollow structure with a heat transfer oil flow channel inside. Both ends of the heat transfer oil heating roller 51 are connected to the external heat transfer oil delivery pipeline through rotary joints. The heat transfer oil is supplied by the boiler in the plant area through the pipeline to provide basic heat for the curing process. Two lower pressure rollers 53 are fixedly installed on the frame 1 through bearing seats and are symmetrically distributed on both sides of the heat transfer oil heating roller 51.

[0052] Specifically, the waste heat from the existing boilers in the factory area is used to provide basic heat, which can reduce curing energy consumption compared to pure electric heating. The surface temperature of the heat transfer oil heating roller 51 is more uniform and the temperature difference is lower, ensuring consistent curing effect. The setting of the lower pressure rollers 53 on both sides can make the leather fit tightly against the surface of the heating roller, improve heat conduction efficiency, and shorten curing time.

[0053] Furthermore, the electric auxiliary heating device 52 includes an arc-shaped base 521 fixedly installed on the frame 1 and matching the outer arc of the heat transfer oil heating roller 51. Multiple rows of evenly arranged connecting rods 522 are fixedly connected below the arc-shaped base 521. A telescopic gooseneck tube 523 is fixedly connected to the end of each connecting rod 522 away from the connecting rod 522. A connecting plate 524 is fixedly connected between the ends of the telescopic gooseneck tubes 523 at the bottom of each row of connecting rods 522. An electric heating wire 525 is fixedly installed below the connecting plate 524.

[0054] Specifically, heat can be flexibly supplemented on the basis of heat transfer oil heating to meet the curing requirements of thick leather. The design of the arc base 521 matches the curvature of the heating roller, ensuring that the distance between the electric heating wires 525 and the leather is consistent in each position, and the heating is uniform. The telescopic gooseneck tube 523 can independently adjust the height of each row of electric heating wires 525, and can also adjust a certain angle to realize temperature zone control of different heating areas, further improving process adaptability.

[0055] Furthermore, the front and rear sides of the frame 1 are respectively provided with through slots corresponding to the exhaust rollers 41 of the upper row. Telescopic cylinders 42 are fixedly installed on the front and rear sides of the frame 1, and lifting plates 43 are fixedly installed on the movable end of the telescopic cylinders 42. The two ends of the exhaust rollers 41 of the upper row pass through the through slots and are rotatably connected to the lifting plates 43.

[0056] Specifically, the height of the three upper rollers can be adjusted synchronously through the telescopic cylinder 42, thereby adjusting the pressing pressure between the upper and lower rollers. There is no need to manually adjust them one by one, which is highly efficient and provides uniform pressure. The exhaust pressure can be flexibly adjusted according to leather products of different thicknesses and hardnesses, ensuring that thin leather will not be deformed and that air bubbles in thick leather can be completely eliminated.

[0057] Furthermore, the temperature detection unit includes multiple non-contact infrared temperature sensors respectively located at the inlet, middle and outlet positions of the heating area for real-time detection of the leather surface temperature. Several non-contact infrared temperature sensors and electric heating wire 525 are electrically connected to the controller 7.

[0058] Specifically, the controller 7 can monitor the temperature changes throughout the entire heating and curing process in real time. It can automatically adjust the power of the electric heating wire 525 according to the detected temperature to ensure that the curing temperature is stable within the process requirements. At the same time, it can quickly provide feedback when overheating occurs to prevent the leather from overheating, scorching, or even catching fire, thus greatly improving production safety.

[0059] Furthermore, the heat dissipation device 62 includes an axial flow fan 621, a dustproof net 622, and several auxiliary rollers 623. The auxiliary rollers 623 are fixedly installed on the frame 1 through bearing seats. The axial flow fan 621 is fixedly installed inside the frame 1. The dustproof net 622 is fixedly connected to the inside of the frame 1 and located between the axial flow fan 621 and the dustproof net 622.

[0060] Specifically, the axial flow fan 621 can force-cool the cured high-temperature leather, quickly reducing the surface temperature of the leather to below 40°C, avoiding quality problems such as glue separation and leather aging caused by heat accumulation after winding. At the same time, the dustproof net 622 can prevent dust and impurities in the cooling air from adhering to the surface of the high-temperature leather, ensuring the appearance quality of the product.

[0061] Working principle:

[0062] The upper and lower unwinding rollers 2 of the feeding mechanism release the surface layer and the base fabric layer respectively. The glue tank 31 of the gluing mechanism 3 stores PVC composite special glue. The glue transfer roller 321 is partially immersed in the glue liquid. The drive motor 324 drives the glue transfer roller 321 to rotate. The glue transfer roller 321 drives the brush roller 322 to rotate through the transmission gear 325 and follower gear 326 at the rear end. The glue liquid on the surface of the glue transfer roller 321 is evenly transferred to the surface of the brush roller 322. The brush roller 322 evenly coats the glue liquid on the surface of the base fabric layer.

[0063] After the base fabric layer is coated with glue, it enters the bubble removal mechanism 4 under the guidance of the guide roller 323. The lower three exhaust rollers 41 of the bubble removal mechanism 4 are fixed on the frame 1, and the upper three exhaust rollers 41 are installed on the lifting plate 43. The telescopic cylinder 42 drives the lifting plate 43 to move downward. The pressure between the upper and lower rollers is adjusted to 0.4MPa. Under the continuous pressing of the three sets of rollers, the air between the two layers of leather is completely discharged from the edge, and there are no bubble residues.

[0064] After the exhaust is completed, the leather enters the heating and curing mechanism 5. First, it is guided by two downward pressure rollers 53 and closely adheres to the surface of the heat transfer oil heating roller 51. The heat transfer oil temperature is provided by the factory boiler for basic heat for curing. The electric heating wire 525 of the electric auxiliary heating device 52 is used to adjust the height of the telescopic gooseneck tube 523 for heating according to the curing requirements of the leather and to prevent the heating roller temperature from being insufficient. Three infrared temperature sensors at the inlet, middle and outlet of the heating area detect the surface temperature of the leather in real time.

[0065] After curing, the leather enters the heat dissipation device 62. The auxiliary roller 623 guides the leather through the heat dissipation area in an S-shaped path. The axial flow fan 621 forces the leather to be cooled by air. The dustproof net 622 filters the dust in the air. Finally, after the leather is cooled, it enters the winding device 61 to complete the finished product winding.

[0066] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An integrated artificial leather production device, characterized in that, Includes a frame (1), on which a feeding mechanism, a gluing mechanism (3), a bubble removal mechanism (4), a heating and curing mechanism (5) and a winding mechanism (6) are arranged sequentially along the material conveying direction. A controller (7) is installed on the front side of the frame (1). The feeding mechanism includes two unwinding rollers (2) that rotate from top to bottom on the frame (1), which are used to release different leather raw materials respectively; The glue application mechanism (3) includes a glue tank (31) fixedly installed on the frame (1) and a brush assembly (32) that cooperates with the glue tank (31). The brush assembly (32) is partially immersed in the glue liquid in the glue tank (31) and applies the glue liquid evenly to the leather surface. The bubble removal mechanism (4) includes two rows of symmetrically distributed exhaust rollers (41). Each row of exhaust rollers (41) has three rollers and they are arranged linearly along the material conveying direction. The lower row of exhaust rollers (41) is rotatably connected to the frame (1). An adjustment mechanism is provided between the upper row of exhaust rollers (41). The two rows of exhaust rollers (41) form a continuous pressing and venting mechanism for the bonded leather. The heating and curing mechanism (5) includes a heat transfer oil heating roller (51), an electric auxiliary heating device (52), a temperature detection unit, and two pressure rollers (53). The winding mechanism (6) includes a winding device (61) and a heat dissipation device (62) mounted on the frame (1), the heat dissipation device (62) being located in front of the winding device (61).

2. The integrated artificial leather production device according to claim 1, characterized in that, The brush assembly (32) includes a transfer roller (321), a brush roller (322), and several guide rollers (323). The transfer roller (321) is rotatably disposed within the frame (1) and partially immersed in the glue liquid in the glue tank (31). The brush roller (322) is rotatably disposed within the frame (1) and contacts the transfer roller (321). Several guide rollers (323) are rotatably disposed within the frame (1) and guide the leather to contact the brush roller (322) and then enter the air bubble removal mechanism (4).

3. The integrated artificial leather production device according to claim 2, characterized in that, The ends of the transfer roller (321) and the brush roller (322) both penetrate the frame (1). A drive motor (324) is fixedly installed on the front side of the frame (1). The output end of the drive motor (324) is connected to the front end of the transfer roller (321). A transmission gear (325) is fixedly sleeved on the rear end of the transfer roller (321). A follower gear (326) that meshes with the transmission gear (325) is fixedly sleeved on the rear end of the brush roller (322).

4. The integrated artificial leather production device according to claim 1, characterized in that, The heat transfer oil heating roller (51) has a hollow structure and a heat transfer oil flow channel inside. Both ends of the heat transfer oil heating roller (51) are connected to the external heat transfer oil delivery pipeline through rotary joints. The heat transfer oil is supplied by the boiler in the plant area through the pipeline to provide basic heat for the curing process. The two lower pressure rollers (53) are fixedly installed on the frame (1) through bearing seats and symmetrically distributed on both sides of the heat transfer oil heating roller (51).

5. The integrated artificial leather production device according to claim 1, characterized in that, The electric auxiliary heating device (52) includes an arc-shaped base (521) fixedly installed on the frame (1) and matching the outer arc of the heat transfer oil heating roller (51). Multiple rows of connecting rods (522) are fixedly connected below the arc-shaped base (521). A telescopic gooseneck tube (523) is fixedly connected to one end of each connecting rod (522) away from the connecting rod (522). A connecting plate (524) is fixedly connected between the ends of the telescopic gooseneck tubes (523) at the bottom of each row of connecting rods (522). An electric heating wire (525) is fixedly installed below the connecting plate (524).

6. The integrated artificial leather production device according to claim 1, characterized in that, The front and rear sides of the frame (1) are respectively provided with through slots corresponding to the exhaust rollers (41) of the upper row. Telescopic cylinders (42) are fixedly installed on the front and rear sides of the frame (1). Lifting plates (43) are fixedly installed on the movable end of the telescopic cylinders (42). The two ends of the exhaust rollers (41) of the upper row pass through the through slots and are rotatably connected to the lifting plates (43).

7. The integrated artificial leather production device according to claim 5, characterized in that, The temperature detection unit includes multiple non-contact infrared temperature sensors respectively set at the inlet, middle and outlet positions of the heating area for real-time detection of the leather surface temperature. Several of the non-contact infrared temperature sensors and the electric heating wire (525) are electrically connected to the controller (7).

8. The integrated artificial leather production device according to claim 1, characterized in that, The heat dissipation device (62) includes an axial flow fan (621), a dustproof net (622) and several auxiliary rollers (623). The auxiliary rollers (623) are fixedly installed on the frame (1) through bearing seats. The axial flow fan (621) is fixedly installed on the inner side of the frame (1). The dustproof net (622) is fixedly connected to the inner side of the frame (1) and located between the axial flow fan (621) and the dustproof net (622).

9. The method of using an integrated artificial leather production device according to claims 1-8, characterized in that, Includes the following steps: Step S1: Install the surface leather material and the base fabric leather material onto the upper and lower unwinding rollers (2) respectively, and lead out the free ends of the surface layer and the base fabric layer respectively. After being guided by the guide roller (323), they pass through the glue coating mechanism (3), the bubble removal mechanism (4), the heating and curing mechanism (5) and the winding mechanism (6) to complete the material feeding operation; Step S2: Start the controller (7). The controller (7) controls the drive motor (324) to start. The drive motor (324) drives the transfer roller (321) to rotate. The transfer roller (321) drives the brush roller (322) to rotate in the opposite direction synchronously through the meshing of the transmission gear (325) and follower gear (326) at the rear end. The transfer roller (321) picks up the glue liquid from the glue tank (31) and evenly transfers it to the surface of the brush roller (322). The brush roller (322) evenly coats the glue liquid on the surface of the base fabric layer. Step S3: The base fabric layer after gluing is guided by the guide roller (323) and merges with the surface layer. The two layers of leather enter the bubble removal mechanism (4) simultaneously. The controller (7) controls the telescopic cylinder (42) to push the lifting plate (43) downward, so that the three exhaust rollers (41) in the upper row are lowered as a whole. The pressing pressure between the upper exhaust roller (41) and the lower exhaust roller (41) is adjusted. Under the continuous pressing of the three exhaust rollers (41) in the upper and lower rows, the air bubbles between the two layers of leather are gradually discharged from the edges of both sides of the leather. Step S4: After venting, the bonded leather enters the heating and curing mechanism (5). The leather is guided by two lower rollers (53) and tightly bonded to the surface of the heat transfer oil heating roller (51). The boiler in the factory circulates high-temperature heat transfer oil into the heat transfer oil heating roller (51) through pipelines to provide basic curing heat. The controller (7) controls the corresponding number and position of electric heating wires (525) in the electric auxiliary heating device (52) to be energized and heated according to the thickness and material parameters of the leather to be produced. The controller (7) adjusts the distance between the electric heating wires (525) and the leather surface by adjusting the bending angle and extension length of the telescopic gooseneck tube (523), thereby controlling the intensity of auxiliary heating. Step S5: During the heating and curing process, non-contact infrared temperature sensors installed at the inlet, middle and outlet of the heating area detect the surface temperature of the leather in real time and feed the temperature data back to the controller (7). The controller (7) automatically adjusts the on / off state and power output of the electric heating wire (525) according to the feedback data to maintain the curing temperature within the set process range. When the surface temperature of the leather is detected to exceed the set threshold, the controller (7) immediately cuts off the power supply to all electric heating wires (525) and triggers an audible and visual alarm. Step S6: The cured leather enters the heat dissipation device (62), the auxiliary roller (623) guides the leather through the heat dissipation area in an S-shaped path, the axial flow fan (621) forces the leather to be cooled by air, and the dust screen (622) filters the dust and impurities in the cooling air to cool the surface temperature of the leather to below 40°C. Step S7: The cooled leather enters the winding device (61), which, under the control of the tension regulating roller, evenly winds the finished artificial leather into a roll with constant winding tension.

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