Microfiber leather coater and waterproof breathable high-wear-resistance microfiber leather

Abstract

The microfiber leather coating device and the waterproof breathable high-wear-resistance microfiber leather belong to the technical field of cloth surface treatment, when the microfiber leather coating device is used for coating a microfiber leather fabric base material, the microfiber leather fabric base material can be spread in the transverse direction and coated at the same time, the microfiber leather fabric base material passes through the upper portion of the coating device, and the microfiber leather fabric base material is coated with the waterproof breathable high-wear-resistance microfiber leather. Through cooperation of extrusion of a first piston assembly and a second piston assembly and expansion or retraction of a rolling ring set, coating liquid can be sprayed to a microfiber leather fabric base material at a certain speed during coating, the coating effect is improved, the coating liquid comprises aluminum oxide, the hardness and wear resistance of the coating liquid are improved, silicon carbide is further included, and the hardness and wear resistance of the coating liquid are improved. According to the present invention, with the impregnation liquid, the wear resistance and the scraping resistance of the coating liquid can be improved, and the water sprinkling agent is added in the impregnation liquid during the molding of the microfiber leather fabric base material, such that the prepared microfiber synthetic leather has characteristics of high gas permeation, high water vapor permeation and high water resistance.

Description

Technical Field

[0001] The invention relates to the technical field of cloth surface treatment, and in particular to a microfiber leather applicator and a waterproof, breathable and highly wear-resistant microfiber leather. Background Art

[0002] Microfiber leather is the abbreviation of ultra-fine fiber synthetic leather. Because the microfiber leather fiber is very fine, it is closer to natural leather in terms of microstructure and performance, and has better mechanical properties. Although microfiber leather has certain wear resistance, it may still wear out when used for a long time and at a high intensity. The existing microfiber leather processing method is usually to use a coating roller to coat a wear-resistant layer on the surface of the microfiber leather. If the ordinary coating roller encounters folding or wrinkles on the microfiber leather during coating, the wear-resistant material cannot be evenly coated on the microfiber leather, affecting the final microfiber leather molding effect. In the prior art, for the surface treatment of fabrics, such as the coating device for fabric production disclosed in Patent Document 1 (CN118719443A), the fabric can be effectively flattened by setting a flattening roller, and then input into the coating mechanism for coating after flattening. Although it includes a flattening roller, the flattening roller is realized by setting a plurality of spiral flattening protrusions, and the flattening and coating are performed separately, so that the fabric may retract after flattening, which eventually affects the coating, and also makes the lateral space of the coating device larger, affecting the volume of the device; another example is the color-coated plate coating device disclosed in Patent Document 2 (CN117259105A), which is provided with an external roller coating roller and an internal second roller material plate, and the relative position between the roller coating roller and the second roller material plate is controlled by controlling the relative position between the roller coating roller and the second roller material plate. The rotation can control whether the coating can flow out of the hole. In addition, when the coating roller rotates, it can drive the expansion or contraction of the second roller plate. During the expansion process, the coating inside the coating roller can be squeezed out to the outside of the coating roller in a similar way to extrusion for coating. Although the setting of this coating device can keep the amount of coating in a relatively uniform state when the internal coating content is small, since it only relies on the expansion of the second roller plate for extrusion, the coating amount is bound to be different from the coating amount when the coating is relatively large, and the effect of uniform coating amount cannot be achieved. In addition, since the coating object of the coating device is metal coil, there is no need to smooth the material at all. When it is used for microfiber leather, it also has the defect of not being able to be smoothed.

[0003] In summary, in the prior art, surface treatment of microfiber leather is performed by surface coating through an ordinary coating roller, and it does not take into account that when the microfiber leather has creases or an uneven surface, it is difficult for the coating liquid to be evenly coated on the surface of the microfiber leather. In addition, even if the fabric to be coated is unfolded by a flattening component, the coating and unfolding actions are separated, and there is no leather coater that can achieve simultaneous coating and flattening. Although the existing coater has the material to be coated arranged inside, the amount of the material to be coated applied to the fabric will become less and less as the material to be coated decreases, which will eventually make the wear-resistant material coated on the surface of the microfiber leather uneven, and finally affect the wear resistance of the microfiber leather. To this end, the present invention provides a microfiber leather coater that can perform uniform coating and smooth the surface of the fabric, and a waterproof, breathable, high-wear-resistant microfiber leather. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a microfiber leather coater, which includes: a coating roller group and a base, the coating roller group can be lifted and moved along the vertical direction of the base, the coating roller group includes a lifting support frame group and a coating sleeve assembly, the coating sleeve assembly includes an outer sleeve, a first piston assembly, a second piston assembly, a first pull rope assembly, a second pull rope assembly and a rolling ring group, the outer sleeve includes a hollow cylinder, a longitudinal strip hole group is opened on one side wall of the hollow cylinder, the rolling ring group is rotatably arranged on the outside of the outer sleeve, and a transverse strip hole group is opened on the rolling ring group, one end of the first piston assembly is slidably arranged on the left side of the outer sleeve, the other end of the first piston assembly is connected to one end of the lifting support frame group, one end of the second piston assembly is slidably arranged on the right side of the outer sleeve, and the second piston assembly The other end is connected to the other end of the lifting support frame group, one end of the first pull rope assembly is connected to the first piston assembly, and the other end is connected to one side of the rolling ring group, one end of the second pull rope assembly is connected to the second piston assembly, and the other end is connected to the other side of the rolling ring group. When the lifting support frame group is laterally contracted, the coating roller group is in a coating state, the first pull rope assembly and the second pull rope assembly pull the rolling ring group to expand, the transverse strip hole group is connected to the longitudinal strip hole group, the rolling ring group stretches the microfiber leather fabric substrate, and the coating liquid in the hollow cylinder can be coated on the surface of the microfiber leather fabric substrate. After the rolling ring group is deployed in place, the coating roller group descends and leaves the surface of the microfiber leather fabric substrate, the coating roller group is in a reset state, the rolling ring group contracts, and the transverse strip hole group and the longitudinal strip hole group are closed.

[0005] Furthermore, it also includes a fixed guide roller and a movable guide roller, the fixed guide roller, the coating roller group and the movable guide roller are arranged laterally in sequence along the base, and the movable guide roller can be lifted and moved along the vertical direction of the base, and the lifting support frame group includes a lifting cylinder, a fixed support plate, a first L-shaped support plate and a second L-shaped support plate, the fixed support plate is arranged at the upper end of the lifting cylinder, the first L-shaped support plate and the second L-shaped support plate are slidably arranged at both ends of the fixed support plate, the first L-shaped support plate is connected to the first piston assembly, and the second L-shaped support plate is connected to the second piston assembly. When the lifting cylinder is extended, the coating roller group can be driven to approach the microfiber leather fabric substrate. At the same time, the movable guide roller moves downward away from the microfiber leather fabric substrate, the first L-shaped support plate and the second L-shaped support plate continue to approach each other, so that the coating roller group is in a coating state, and when the coating roller group is in a reset state, the microfiber leather fabric substrate is supported by the fixed guide roller and the movable guide roller.

[0006] Furthermore, the pull rope of the first pull rope assembly and the pull rope of the second pull rope assembly are both wound with a rope length adjustment assembly, and the rope length adjustment assembly includes a first rope wheel, a second rope wheel, a third rope wheel and a compensation cylinder, the second rope wheel is arranged at the end of the compensation cylinder, the first rope wheel and the third rope wheel are arranged at both ends of the compensation cylinder, the first rope wheel, the second rope wheel and the third rope wheel are arranged in a herringbone shape, the pull rope passes horizontally through the first rope wheel and is upwardly wound around the second rope wheel, then passes downward through the third rope wheel, and finally horizontally winds out of the third rope wheel, the compensation cylinder is in an extended state, and the compensation cylinder is in a locked state when the first L-shaped support plate and the second L-shaped support plate move inward, and when the first L-shaped support plate and the second L-shaped support plate stop and the rolling ring group needs to be reset, it is retracted by the compensation cylinder, so that the pull rope is in a relaxed state and the rolling ring group retracts and returns to its original position.

[0007] Furthermore, the rolling ring group includes a fixed inner ring, a plurality of movable inner rings and a plurality of movable outer rings, the fixed inner ring can rotate around the axial direction of the outer sleeve but cannot slide along the axial direction of the outer sleeve, the fixed inner ring is rotatably arranged at the center of the outer sleeve, and the movable outer ring, the movable inner ring and the movable outer ring are repeatedly arranged in sequence along the axial direction extending from the center of the outer sleeve to both ends, the left end and the right end of the fixed inner ring are connected to the adjacent movable outer rings through a plurality of first springs, the left end and the right end of the movable inner ring are connected to the adjacent movable outer rings through a plurality of second springs, and the first spring and the second spring are in a contracted state in an initial state, so that the rolling ring group can In the initial state, the movable ring group is in a retracted state, the fixed inner ring and the movable inner ring are both in the movable outer ring, and the several movable outer rings are close to each other. The first pull rope assembly is slidably arranged on the left side of the leftmost movable outer ring, and the second pull rope assembly is slidably arranged on the right side of the rightmost movable outer ring. By pulling the first pull rope assembly and the second pull rope assembly, the movable outer ring and the movable inner ring, and the fixed inner ring and the movable outer ring overcome the elastic force of the first spring and the second spring and expand, so that the rolling ring group is in an expanded state. At this time, adjacent movable outer rings are separated from each other to expose the movable inner ring, and the sliding of the movable outer ring and the movable inner ring can stretch the tightly attached microfiber leather fabric substrate.

[0008] Further, the movable outer ring includes a ring body one, and a plurality of first transverse strip holes are arranged on the circumferential side of the ring body one; the fixed inner ring includes a ring body two, and a plurality of second transverse strip holes are arranged on the circumferential side of the ring body two; the movable inner ring includes a ring body three, and a plurality of third transverse strip holes are arranged on the circumferential side of the ring body three; the first transverse strip holes, the second transverse strip holes and the third transverse strip holes form the transverse strip hole group.

[0009] Furthermore, an intermediate limiting ring platform is arranged on the outer periphery of the hollow cylinder one and at the center of the hollow cylinder one, an annular limiting groove is arranged at the inner center of the ring body two, the intermediate limiting ring platform is accommodated in the annular limiting groove, and an inner through hole one is arranged in the hollow cylinder one and passes through the left and right sides of the hollow cylinder one.

[0010] Further, the first piston assembly includes a first inner sliding column, a first inner piston sleeve and a first outer piston sleeve, the second piston assembly includes a second inner sliding column, a second inner piston sleeve and a second outer piston sleeve, the first inner piston sleeve is sleeved on the outside of the first inner sliding column, the first outer piston sleeve is sleeved on the outside of the first inner piston sleeve, the first outer piston sleeve passes through the left side of the hollow cylinder body one, the second inner piston sleeve is sleeved on the outside of the second inner sliding column, the second outer piston sleeve is sleeved on the outside of the second inner piston sleeve, and the second outer piston sleeve passes through the right side of the hollow cylinder body one.

[0011] Furthermore, the first pull rope assembly and the second pull rope assembly have the same structure, both comprising an end arc plate 1, the pull rope and the cable length adjustment assembly, one end of the end arc plate 1 being slidably disposed on the left end of the leftmost movable outer ring or the right end of the rightmost movable outer ring, the other end of the end arc plate 1 being connected to one end of the pull rope, the other end of the pull rope being connected to the first inner sliding column or the second inner sliding column, the pull rope passes through the cable length adjustment assembly, and the cable length adjustment assembly is disposed on the outer sleeve.

[0012] Furthermore, the first outer piston sleeve and the second outer piston sleeve have the same structure, both comprising a hollow cylinder body 2, a first support rod, a second support rod, a connecting shaft and a first guide pulley, an inner through hole 2 is opened in the hollow cylinder body 2, a fan-shaped blind hole 1 is opened axially at the side wall of the hollow cylinder body 2, and an outer longitudinal through hole 1 and an inner longitudinal through hole 1 are opened in sequence on the hollow cylinder body 2 at one of the fan-shaped blind holes along the radial direction, the first support rod and the second support rod are respectively arranged on the outside of the hollow cylinder body 2, the first support rod and the second support rod are clamped at both ends of the outer longitudinal through hole 1, and the two ends of the connecting shaft are respectively fixedly provided Placed at the upper ends of the first support rod and the second support rod, the first guide pulley is rotatably arranged on the connecting shaft, and the pull rope is guided by the first guide pulley; the first inner piston sleeve and the second inner piston sleeve have the same structure, both including a hollow cylinder three, an inner through hole three is opened on the inner side of the hollow cylinder three, a fan-shaped blind hole two is opened axially at the side wall of the hollow cylinder three, and an outer longitudinal through hole two is opened on the outer side of the hollow cylinder three along the radial direction at the fan-shaped blind hole two, and a second guide pulley is arranged at one end of the hollow cylinder three away from the opening of the fan-shaped blind hole two, and the pull rope is guided by the second guide pulley.

[0013] Preferably, it also includes a waterproof and breathable high wear-resistant microfiber leather, which is made by a microfiber leather coater, and the manufacturing process of the waterproof and breathable high wear-resistant microfiber leather is as follows: 1. Wear-resistant coating configuration: Take out the polyurethane resin, add alumina powder and silicon carbide powder, react at high temperature, stir until the polyurethane resin is completely dissolved to form a uniform resin solution, then add a leveling agent and a defoaming agent to mix, use a filter to filter the mixed coating, let the filtered coating stand for maturation, and form a wear-resistant coating; 2. Preparation of microfiber leather fabric base material: The sea-island fiber nonwoven fabric is used as a substrate, and the nonwoven fabric is impregnated with the nonwoven fabric by a wet process, wherein the impregnation slurry includes polyurethane, dimethylformamide and an oily water-repellent agent, and the sea-island fiber and polyurethane composite material is formed after wet coagulation, and then the microfiber leather fabric substrate is obtained by alkali reduction or toluene reduction; 3. Paint coating: The wear-resistant layer coating obtained in step one is added to the coating roller group of the microfiber leather coater, so that the microfiber leather fabric substrate passes through the coating roller group, squeezing the first piston assembly and the second piston assembly, and the rolling ring group changes from a retracted state to an expanded state. The rolling ring group stretches the microfiber leather fabric substrate laterally, and at the same time, the coating is sprayed out from a plurality of through holes formed by the connected transverse strip hole group and the longitudinal strip hole group to coat the microfiber leather fabric substrate, thereby forming a waterproof and breathable high-wear-resistant microfiber leather.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The microfiber leather applicator of the present invention can stretch the microfiber leather fabric substrate in the horizontal direction and coat it when coating the microfiber leather fabric substrate. When coating the microfiber leather fabric substrate, the coating liquid is placed below, and the microfiber leather fabric substrate passes from above. Through the extrusion operation of the first piston assembly and the second piston assembly, and the expansion and retraction of the coordinated rolling ring assembly, the coating liquid can be sprayed to the microfiber leather fabric substrate at a certain speed during coating, so that the coating effect is better. The coating liquid includes aluminum oxide, which can improve the hardness and wear resistance of the coating liquid. It also includes silicon carbide, which can further improve the wear resistance and scratch resistance of the coating liquid. At the same time, in the molding of the microfiber leather fabric substrate, a water-repellent is added to the impregnation liquid, so that the prepared microfiber synthetic leather has higher air permeability, water vapor permeability and waterproof performance, and finally a high-wear-resistant microfiber leather with good waterproof performance, good air permeability and high wear resistance can be obtained; 2. The microfiber leather coater of the present invention comprises a fixed guide roller, a coating roller group and a movable guide roller. The coating roller group and the movable guide roller can perform corresponding lifting actions according to the actual coating situation. The coating roller group comprises a lifting support frame group and a coating sleeve assembly. The lifting support frame group comprises a lifting cylinder and a first L-shaped support plate and a second L-shaped support plate that can slide relatively. The coating sleeve assembly comprises an outer sleeve, a rolling ring group rotatably arranged on the outer sleeve, a first pull rope assembly, a second pull rope assembly, a first piston assembly and a second piston assembly. The first pull rope assembly and the second pull rope assembly are connected to the rolling ring assembly and the first piston assembly and the second piston assembly. The first piston assembly and the second movable The plug assembly is slidably arranged on the left and right sides of the outer sleeve, the first piston assembly is connected to the first L-shaped support plate, and the second piston assembly is connected to the second L-shaped support plate. With such an arrangement, the sliding of the first piston assembly and the second piston assembly can be controlled by controlling the relative sliding of the first L-shaped support plate and the second L-shaped support plate, so that the coating liquid in the outer sleeve can be squeezed. In addition, the sliding of the first piston assembly and the second piston assembly can drive the movement of the first pull rope assembly and the second pull rope assembly, so that the rolling ring group is switched back and forth between the retracted state and the extended state, and finally the transverse strip hole group and the longitudinal strip hole group are switched between the connected and closed states, so as to realize the coating operation of the coating liquid; 3. The rolling ring group of the present invention includes a fixed inner ring, a plurality of movable inner rings and a plurality of movable outer rings. The fixed inner ring and the movable inner ring are connected by a first spring, and the movable inner ring and the movable outer ring are connected by a second spring. The fixed inner ring, the movable inner ring and the movable outer ring can be freely rotatably connected to the outside of the outer sleeve. Such an arrangement enables the rolling ring group to be able to synchronize the transmission of each part when coating a microfiber leather fabric substrate with a larger width. The arrangement of the first spring and the second spring arranged in linkage enables the rolling ring group to better coat the fabric. A plurality of second springs are arranged on the fixed inner ring. A plurality of transverse strip holes are arranged on the movable inner ring, and a plurality of first transverse strip holes are arranged on the movable outer ring. The first transverse strip holes, the second transverse strip holes and the third transverse strip holes form a transverse strip hole group. Correspondingly, a plurality of longitudinal strip hole groups are arranged on the outer side of the outer sleeve. The hole opening directions of the transverse strip hole group and the longitudinal strip hole group are perpendicular to each other. In this way, when the transverse strip hole group and the longitudinal strip hole group intersect, a spray hole for the coating liquid to pass through can be formed at the intersection. Compared with the existing fixed through-hole structure, the position of the spray hole can be adjusted adaptively, which is more flexible and has a better spraying effect. 4. The fixed inner ring, several movable inner rings and several movable outer rings arranged in the rolling ring group of the present invention can be unfolded under the pulling of the first pull rope assembly and the second pull rope assembly, and can be reset by approaching each other under the action of the first spring and the second spring. In order to enable the first piston assembly and the second piston assembly to continuously extrude, the rolling ring group can cyclically switch between the retracted state and the unfolded state, so that the first pull rope assembly and the second pull rope assembly both include a cable length adjustment assembly, and the retraction of the compensation cylinder in the cable length adjustment assembly can satisfy the resetting of the rolling ring group, so that the first piston assembly and the second piston assembly can realize continuous extrusion of the coating liquid; 5. Finally, in order to avoid the situation where the coating liquid in the outer sleeve cannot be squeezed into the longitudinal strip holes near the two end surfaces of the outer sleeve if the outer sleeve only includes one piston structure, the first piston assembly and the second piston assembly include a plurality of piston structures that can be sleeved with each other, and a first ring plate and a second ring plate are arranged at the left and right ends of the outer sleeve. Specifically, the first piston assembly and the second piston assembly both include an inner sliding column, an inner piston sleeve and an outer piston sleeve that are sleeved with each other and arranged from the inside to the outside. In order to ensure the continuity of the coating liquid in the outer sleeve being squeezed and to ensure that the coating liquid can be sprayed out evenly, the inner sliding column, the inner piston sleeve and the outer piston sleeve are squeezed inwardly in turn. In addition, a fan-shaped blind hole 2 and an outer longitudinal through hole 2 connected to the fan-shaped blind hole 2 are arranged in the inner piston sleeve, a fan-shaped blind hole 1 and an inner longitudinal through hole 1 and an outer longitudinal through hole 1 connected to the fan-shaped blind hole 1 are arranged in the outer piston sleeve, the outer longitudinal through hole 2 and the inner longitudinal through hole 1 are arranged correspondingly, and the inner longitudinal through hole 1 and the outer longitudinal through hole 1 are arranged correspondingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the microfiber leather applicator during coating of the present application; Figure 2 It is a schematic diagram of the structure of the microfiber leather coater in the initial state; Figure 3 It is a structural schematic diagram of the microfiber leather coater in coating state; Figure 4 (a) is a schematic diagram of the state of the microfiber leather coater in the initial state, and (b) is a schematic diagram of the state of the microfiber leather coater in the coating state; Figure 5 A schematic diagram of the assembly of the coating sleeve assembly; Figure 6 Illustration of the explosion of the coating sleeve assembly Figure 1 ; Figure 7 Illustration of the explosion of the coating sleeve assembly Figure 2 ; Figure 8 (a) is a schematic diagram of the outer sleeve structure Figure 1(b) is a schematic diagram of the outer sleeve structure Figure 2 ; Fig. 9 It is a schematic diagram of the structure of the movable outer ring; Fig.10 (a) is a schematic diagram of a fixed inner ring structure, and (b) is a schematic diagram of a movable inner ring structure; Fig.11 (a) is a schematic diagram of the structure of the first outer piston sleeve or the second outer piston sleeve Figure 1 (b) is a schematic diagram of the structure of the first outer piston sleeve or the second outer piston sleeve Figure 2 ; Fig.12 (a) is a schematic diagram of the structure of the first inner piston sleeve or the second inner piston sleeve Figure 1 (b) is a schematic diagram of the structure of the first inner piston sleeve or the second inner piston sleeve Figure 2 ; Fig.13 It is a schematic diagram of the coating roller group structure; Fig.14 for Fig.13 A magnified view of Fig.15 (a) is a top view of the rolling ring assembly in an expanded state, (b) is a top view of the outer sleeve, and (c) is a top view of the rolling ring assembly in a contracted state; Fig.16 for Fig.15 BB cross-sectional view; Fig.17 This is a schematic diagram of the cable length adjustment component structure.

[0016] Among them, 1. Microfiber leather fabric substrate; 2. Fixed guide roller; 3. Moving guide roller; 4. Coating roller group; 5. Base; 6. Lifting support frame group; 7. Coating sleeve assembly; 8. Driving cylinder 1; 9. Outer sleeve; 10. First outer piston sleeve; 11. First inner piston sleeve; 12. First inner sliding column; 13. Second outer piston sleeve; 14. Second inner piston sleeve; 15. Second inner sliding column; 16. First piston assembly; 17. Second piston assembly; 18. Lifting cylinder; 19. Fixed support plate; 20. First L-shaped support plate ; 21, second L-shaped support plate; 22, rolling ring group; 23, transverse strip hole group; 24, longitudinal strip hole group; 25, first pull rope assembly; 26, second pull rope assembly; 27, hollow cylinder one; 28, first ring plate; 29, second ring plate; 30, fixed inner ring; 31, movable inner ring; 32, movable outer ring; 33, ring body one; 34, first transverse strip hole; 35, first accommodating ring groove; 36, second accommodating ring groove; 37, ring body two; 38, second transverse strip hole; 39, annular limit groove; 4 0, ring body three; 41, third transverse strip hole; 42, middle limit ring platform; 43, end arc plate one; 44, pull rope; 45, first guide pulley; 46, second guide pulley; 47, hollow cylinder two; 48, fan-shaped blind hole one; 49, outer longitudinal through hole one; 50, inner longitudinal through hole one; 51, first support rod; 52, second support rod; 53, connecting shaft; 54, hollow cylinder three; 55, fan-shaped blind hole two; 56, outer longitudinal through hole two; 57, inner through hole one; 58, inner through hole two; 59, inner through hole Hole three; 60, end arc plate two; 61, drive cylinder two; 62, vertical support plate; 63, rope length adjustment assembly; 64, replenishing cylinder; 65, first rope pulley; 66, second rope pulley; 67, third rope pulley; 68, support plate; 69, support leg; 70, first support plate; 71, second support plate; 72, third support plate; 73, fourth support plate; 74, long strip hole; 75, left limit plate; 76, right limit plate; 77, winding roller; 78, unwinding roller; 79, longitudinal strip hole; 80, transverse sliding plate. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the examples. However, the present invention is not limited to the following examples. The implementation conditions used in the examples can be further adjusted according to the different requirements of specific use, and the implementation conditions not specified are conventional conditions in the industry. The technical features involved in each embodiment of the present invention can be combined with each other as long as they do not conflict with each other.

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0019] like Figure 1-Figure 17As shown, a microfiber leather coater comprises: a fixed guide roller 2, a movable guide roller 3, a coating roller group 4 and a base 5, wherein the fixed guide roller 2, the coating roller group 4 and the movable guide roller 3 are arranged laterally in sequence along the base 5, the fixed guide roller 2 and the movable guide roller 3 are both rotatably arranged on the base 5, the movable guide roller 3 and the coating roller group 4 are both capable of being lifted and moved in the vertical direction of the base 5, the coating roller group 4 comprises a lifting support frame group 6 and a coating sleeve assembly 7, the lifting support frame group 6 comprises a lifting cylinder 18, a fixed support plate 19, a first L-shaped support plate 20 and a second L-shaped support plate 21, the fixed support plate 19 is arranged at the upper end of the lifting cylinder 18, the first L-shaped support plate 20 and the second L-shaped support plate 21 are slidably arranged at both ends of the fixed support plate 19, the coating sleeve assembly 7 comprises an outer sleeve 9, a first piston assembly 16, a second piston assembly 17, a first pull rope assembly 25, a second pull rope assembly 26 and a rolling ring assembly 22, as shown Figure 8As shown, the outer sleeve 9 includes a hollow cylinder 27, in which an inner through hole 57 is provided which passes through the left and right sides of the hollow cylinder 27, a longitudinal strip hole group 24 is provided on the side wall of the hollow cylinder 27, the rolling ring group 22 is rotatably arranged on the outer side of the outer sleeve 9, and a plurality of transverse strip hole groups 23 are provided on the rolling ring group 22, one end of the first piston assembly 16 is slidably arranged on the left side of the outer sleeve 9, the other end of the first piston assembly 16 is connected to the first L-shaped support plate 20, one end of the second piston assembly 17 is slidably arranged on the right side of the outer sleeve 9, the other end of the second piston assembly 17 is connected to the second L-shaped support plate 21, one end of the first pull rope assembly 25 is connected to the first piston assembly 16, and the other end is connected to one side of the rolling ring group 22, one end of the second pull rope assembly 26 is connected to the second piston assembly 17, and the other end is connected to the other side of the rolling ring group 22, when the first L-shaped support plate 20 and the second L-shaped support plate 21 are close to each other, the coating roller assembly 4 is in a coating state. In the coating state, the first pull rope assembly 25 and the second pull rope assembly 26 pull the rolling ring assembly 22 to expand, the transverse strip hole group 23 is connected to the longitudinal strip hole group 24, and the rolling ring assembly 22 stretches the microfiber leather fabric substrate 1. At the same time, the coating liquid in the hollow cylinder 27 can be coated on the surface of the microfiber leather fabric substrate 1. After the rolling ring assembly 22 is fully expanded, the lifting cylinder 18 retracts, the coating roller group 4 is away from the microfiber leather fabric substrate 1, and the fixed guide roller 2 and the movable guide roller 3 supports the microfiber leather fabric substrate 1, the rolling ring group 22 is reset, the transverse strip hole group 23 and the longitudinal strip hole group 24 are closed, the lifting cylinder 18 is extended, and the coating roller group 4 is driven to be close to the microfiber leather fabric substrate 1, and the movable guide roller 3 moves downward away from the microfiber leather fabric substrate 1, and the first L-shaped support plate 20 and the second L-shaped support plate 21 continue to approach each other, so that the coating roller group 4 is in a coating state, so that the entire microfiber leather fabric substrate 1 can be unfolded and coated at the same time.

[0020] like Fig.13 , Fig.14 , Fig.17As shown, in order to facilitate the resetting of the rolling ring group 22, the first L-shaped support plate 20 and the second L-shaped support plate 21 can remain in place, so that the first piston assembly 16 and the second piston assembly 17 continue to squeeze inward next time, so that the pull rope 44 of the first pull rope assembly 25 and the pull rope 44 of the second pull rope assembly 26 are both wound with a rope length adjustment assembly 63, and the rope length adjustment assembly 63 includes a first rope wheel 65, a second rope wheel 66, a third rope wheel 67 and a compensation cylinder 64, the second rope wheel 66 is arranged at the end of the compensation cylinder 64, the first rope wheel 65 and the third rope wheel 67 are arranged at both ends of the compensation cylinder 64, and the first rope wheel 65 and the third rope wheel 67 are arranged at both ends of the compensation cylinder 64. A rope wheel 65, a second rope wheel 66 and a third rope wheel 67 are arranged in a herringbone shape. The pull rope 44 passes horizontally through the first rope wheel 65 and then is wound upwardly around the second rope wheel 66, then passes downwardly through the third rope wheel 67, and finally is wound horizontally out of the third rope wheel 67. The compensation cylinder 64 is in an extended state. The compensation cylinder 64 is in a locked state when the first L-shaped support plate 20 and the second L-shaped support plate 21 move inwardly. When the first L-shaped support plate 20 and the second L-shaped support plate 21 stop and the rolling ring group 22 needs to be reset, the compensation cylinder 64 retracts, thereby making the pull rope 44 in a relaxed state and the rolling ring group 22 retracts to its original position.

[0021] like Figure 5-Figure 10 As shown, the rolling ring group 22 includes a fixed inner ring 30, a plurality of movable inner rings 31 and a plurality of movable outer rings 32. The fixed inner ring 30 can rotate around the axial direction of the outer sleeve 9, but cannot slide along the axial direction of the outer sleeve 9. The fixed inner ring 30 is rotatably arranged at the center of the outer sleeve 9. Along the axial direction extending from the center of the outer sleeve 9 to both ends, the movable outer ring 32, the movable inner ring 31 and the movable outer ring 32 are repeatedly arranged in sequence. The left and right ends of the fixed inner ring 30 are connected to the adjacent movable outer rings 32 through a plurality of first springs (not shown in the figure), and the left and right ends of the movable inner ring 31 are connected to the adjacent movable outer rings 32 through a plurality of second springs. The first and second springs are in a contracted state in the initial state. In this way, the rolling ring The group 22 is in a retracted state in the initial state. At this time, the fixed inner ring 30 and the movable inner ring 31 are both in the movable outer ring 32, and the several movable outer rings 32 are close to each other. The first pull rope assembly 25 is slidably arranged on the left side of the leftmost movable outer ring 32, and the second pull rope assembly 26 is slidably arranged on the right side of the rightmost movable outer ring 32. Through the pulling of the first pull rope assembly 25 and the second pull rope assembly 26, the movable outer ring 32 and the movable inner ring 31, and the fixed inner ring 30 and the movable outer ring 32 overcome the elastic force of the first spring and the second spring and unfold, so that the rolling ring group 22 is in an unfolded state. At this time, adjacent movable outer rings 32 are separated from each other to expose the movable inner ring 31. The sliding of the movable outer ring 32 and the movable inner ring 31 can stretch the tightly attached microfiber leather fabric substrate 1.

[0022] like Figure 9-10 As shown, the movable outer ring 32 includes a ring body 1 33, and a plurality of first transverse strip holes 34 are arranged on the circumferential side of the ring body 1 33; the fixed inner ring 30 includes a ring body 2 37, and a plurality of second transverse strip holes 38 are arranged on the circumferential side of the ring body 2 37; the movable inner ring 31 includes a ring body 3 40, and a plurality of third transverse strip holes 41 are arranged on the circumferential side of the ring body 3 40; the first transverse strip holes 34, the second transverse strip holes 38 and the third transverse strip holes 41 form the transverse strip hole group 23.

[0023] In addition, a first accommodating ring groove 35 and a second accommodating ring groove 36 are provided on the inner side of the ring body 1 33, near the end surface of the ring body 1 33, and the ring body 2 37 and the ring body 3 40 can enter the first accommodating ring groove 35 and / or the second accommodating ring groove 36. In order to prevent the movable outer ring 32 and the movable inner ring 31 from being separated, the movable outer ring 32 and the fixed inner ring 30 from being separated, and the movable outer ring 32 and the movable inner ring 31 from being separated when pulling, anti-separation structures are provided on both sides of the ring body 2 37, both sides of the ring body 3 40 and both sides of the ring body 1 33, such as first protruding rings can be provided at both ends of the ring body 2 37 and both ends of the ring body 3 40, and second protruding rings are provided on the inner side of both ends of the ring body 1 33. In this way, the mutual restriction of the first protruding ring and the second protruding ring can prevent the ring body 2 37 from being separated from the ring body 1 33, and the ring body 3 40 from being separated from the ring body 1 33. Other anti-separation structures can also be used, which will not be described in detail here.

[0024] like Figure 8 , Fig.10 As shown, an intermediate limiting ring platform 42 is provided on the outer periphery of the hollow cylinder 27 and at the center of the hollow cylinder 27, and an annular limiting groove 39 is provided at the inner center of the ring body 27. The intermediate limiting ring platform 42 is accommodated in the annular limiting groove 39, so that the fixed inner ring 30 can rotate around the axial direction of the outer sleeve 9, but cannot slide along the axial direction of the outer sleeve 9.

[0025] like Figure 5-Figure 7 As shown, the first piston assembly 16 includes a first inner sliding column 12, a first inner piston sleeve 11 and a first outer piston sleeve 10, and the second piston assembly 17 includes a second inner sliding column 15, a second inner piston sleeve 14 and a second outer piston sleeve 13. The first inner piston sleeve 11 is sleeved on the outside of the first inner sliding column 12, the first outer piston sleeve 10 is sleeved on the outside of the first inner piston sleeve 11, the first outer piston sleeve 10 passes through the left side of the hollow cylinder 27, the second inner piston sleeve 14 is sleeved on the outside of the second inner sliding column 15, the second outer piston sleeve 13 is sleeved on the outside of the second inner piston sleeve 14, and the second outer piston sleeve 13 passes through the right side of the hollow cylinder 27.

[0026] The first pull rope assembly 25 and the second pull rope assembly 26 have the same structure, and both include an end curved plate 43, the pull rope 44 and the cable length adjustment assembly 63. One end of the end curved plate 43 is slidably disposed on the left end of the leftmost movable outer ring 32 or the right end of the rightmost movable outer ring 32, and the other end of the end curved plate 43 is connected to one end of the pull rope 44, and the other end of the pull rope 44 is connected to the first inner sliding column 12 or the second inner sliding column 15. The pull rope 44 passes through the cable length adjustment assembly 63, and the cable length adjustment assembly 63 is disposed on the outer sleeve 9.

[0027] like Figure 11-12 As shown, the first outer piston sleeve 10 and the second outer piston sleeve 13 have the same structure, and both include a hollow cylinder 47, a first support rod 51, a second support rod 52, a connecting shaft 53 and a first guide pulley 45. An inner through hole 58 is opened in the hollow cylinder 47, and a fan-shaped blind hole 48 is opened axially at the side wall of the hollow cylinder 47. At the fan-shaped blind hole 48, an outer longitudinal through hole 49 and an inner longitudinal through hole 50 are opened in sequence on the hollow cylinder 47 along the radial direction. The first support rod 51 and the second support rod 52 are respectively arranged on the outside of the hollow cylinder 47, and the first support rod 51 and the second support rod 52 are clamped at both ends of the outer longitudinal through hole 49. The two ends of the connecting shaft 53 are respectively fixedly arranged on the upper ends of the first support rod 51 and the second support rod 52. The first guide pulley 45 is rotatably arranged on the connecting shaft 53, and the pull rope 44 is guided by the first guide pulley 45.

[0028] The first inner piston sleeve 11 and the second inner piston sleeve 14 have the same structure and both include a hollow cylinder three 54, an inner through hole three 59 is opened on the inner side of the hollow cylinder three 54, a fan-shaped blind hole two 55 is opened axially on the side wall of the hollow cylinder three 54, and an outer longitudinal through hole two 56 is opened on the outer side of the hollow cylinder three 54 along the radial direction at the fan-shaped blind hole two 55, and a second guide pulley 46 is provided at one end of the hollow cylinder three 54 away from the opening of the fan-shaped blind hole two 55, and the pull rope 44 is guided by the second guide pulley 46.

[0029] Preferably, the outer longitudinal through hole 2 56 corresponds to the position of the inner longitudinal through hole 1 50, so as to ensure that the coating liquid can enter the fan-shaped blind hole 1 48 through the fan-shaped blind hole 2 55, and then flow out from the outer longitudinal through hole 1 49, and finally enter the longitudinal strip hole group 24 on the surface of the outer sleeve 9. When the first piston assembly 16 and the second piston assembly 17 are squeezed inward, the coating liquid can also flow on both sides of the hollow cylinder 27, so that the coating liquid flowing out of the longitudinal strip hole group 24 can be kept as uniform as possible.

[0030] like Figure 5 As shown, in order to prevent the coating liquid from flowing from the outer longitudinal through hole 49 to the outside of the hollow cylinder 27, an end arc plate 60 is fixedly provided on both side walls of the hollow cylinder 27. The end arc plate 60 is covered on the outside of the first outer piston sleeve 10 and the second outer piston sleeve 13, and can block the outer longitudinal through hole 49.

[0031] Furthermore, the longitudinal strip hole group 24 is composed of a plurality of longitudinal strip holes 79. In order to ensure that the coating liquid can also flow to the longitudinal strip holes 79 at the two ends of the hollow cylinder 27, a first ring plate 28 and a second ring plate 29 are respectively provided at the two ends of the hollow cylinder 27. The inner diameters of the first ring plate 28 and the second ring plate 29 are smaller than the inner diameter of the inner side of the hollow cylinder 27. The outer diameter of the hollow cylinder 47 of the first outer piston sleeve 10 is equal to the inner diameter of the first ring plate 28, and the outer diameter of the hollow cylinder 47 of the second outer piston sleeve 13 is equal to the inner diameter of the second ring plate 29. 29, the outer diameter of the hollow cylinder three of the first inner piston sleeve 11 is equal to the diameter of the inner through hole two 58 of the hollow cylinder two 47 of the first outer piston sleeve 10, the outer diameter of the hollow cylinder three 54 of the second inner piston sleeve 14 is equal to the diameter of the inner through hole two 58 of the hollow cylinder two 47 of the second outer piston sleeve 13, the diameter of the first inner sliding column 12 is equal to the diameter of the inner through hole three 59 of the hollow cylinder three 54 of the first inner piston sleeve 11, and the diameter of the second inner sliding column 15 is equal to the diameter of the inner through hole three 59 of the hollow cylinder three 54 of the second inner piston sleeve 14.

[0032] Further, the first inner sliding column 12 is connected to the first L-shaped support plate 20 , and the second inner sliding column 15 is connected to the second L-shaped support plate 21 .

[0033] like Figure 15-16As shown, for the convenience of explaining the longitudinal strip-shaped hole group 24 and the transverse strip-shaped hole group 23, the number of the movable inner rings 31 is selected as 2, and the number of the movable outer rings 32 is 4. Denote the length of the movable outer ring 32 as L1, and the lengths of the fixed inner ring 30 and the movable inner rings are both L2. The length of the first transverse strip-shaped hole 34 is L3, and the lengths of the second transverse strip-shaped hole 38 and the third transverse strip-shaped hole 41 are both L4. The distance from the left end of the first transverse strip-shaped hole 34 to the left end of the movable outer ring 32 is L5, and the distance from the right end of the first transverse strip-shaped hole 34 to the right end of the movable outer ring 32 is L6. The distance from the left end of the second transverse strip-shaped hole 38 to the left end of the fixed inner ring 30 is L7, and the distance from the right end of the second transverse strip-shaped hole 38 to the right end of the fixed inner ring 30 is L8. The distance from the left end of the third transverse strip-shaped hole 41 to the left end of the movable inner ring 31 is also L7, and the distance from the right end of the third transverse strip-shaped hole 41 to the right end of the movable inner ring 31 is also L8. The length of the end arc-shaped plate one 43 is L9, L5 = L6, L7 = L8. The longitudinal strip-shaped hole group 24 includes 16 longitudinal strip-shaped holes 79. The longitudinal strip-shaped holes 79 are grouped in pairs and are arranged symmetrically with respect to the middle limiting ring platform 42. Denote the four groups of longitudinal strip-shaped holes 79 located on the left side of the middle limiting ring platform 42 as the left first longitudinal strip-shaped hole group, the left second longitudinal strip-shaped hole group, the left third longitudinal strip-shaped hole group, and the left fourth longitudinal strip-shaped hole group respectively. Denote the four groups of longitudinal strip-shaped holes 79 located on the right side of the middle limiting ring platform 42 as the right first longitudinal strip-shaped hole group, the right second longitudinal strip-shaped hole group, the right third longitudinal strip-shaped hole group, and the right fourth longitudinal strip-shaped hole group respectively. Denote the axis where the center of the central cylinder one 27 is located as axis X. Denote the distances from axis X to the right end of the right first longitudinal strip-shaped hole group and from axis X to the left end of the left fourth longitudinal strip-shaped hole group as both D1. Denote the distances from axis X to the left end of the right second longitudinal strip-shaped hole group and from axis X to the right end of the left third longitudinal strip-shaped hole group as both D2. Denote the distances from axis X to the right end of the right second longitudinal strip-shaped hole group and from axis X to the left end of the left third longitudinal strip-shaped hole group as both D3. Denote the distances from axis X to the left end of the right third longitudinal strip-shaped hole group and from axis X to the right end of the left second longitudinal strip-shaped hole group as both D4. Denote the distances from axis X to the right end of the right third longitudinal strip-shaped hole group and from axis X to the left end of the left second longitudinal strip-shaped hole group as both D5. Denote the distances from axis X to the left end of the right fourth longitudinal strip-shaped hole group and from axis X to the right end of the left first longitudinal strip-shaped hole group as both D6. Denote the distances from axis X to the right end of the right fourth longitudinal strip-shaped hole group and from axis X to the left end of the left first longitudinal strip-shaped hole group as both D7. Denote the distances from axis X to the left end of the right first longitudinal strip-shaped hole group and from axis X to the right end of the left fourth longitudinal strip-shaped hole group as both D8. Then, as shown in Fig.15 (b) and (c) of, L9 + 2 * L1 ≥ D7, L5 > D1, L5 ≥ 0.5 * L2, L5 + L3 < D2, L1 + L5 > D3, L1 + L5 + L3 < D4, as shown in Fig.15As shown in (a) and (b), 2*D8<L4≤2*D1,0.5*L2+L5≤D2,0.5*L2+L5+L3≥D3,0.5*L2+L1+L7+L4> D4, 0.5*L2+L1+L2+L5≤D6, 0.5*L2+L1+L2+L5+L3≥D7. In this way, it can be guaranteed that Fig.15 As shown in (c), when the rolling ring group 22 is in the retracted state, the transverse strip hole group 23 and the longitudinal strip hole group 24 are isolated from each other, and when the rolling ring group 22 is in the extended state, the transverse strip hole group 23 and the longitudinal strip hole group 24 are connected to each other.

[0034] like Fig.16 As shown, the center of the hollow cylinder 27 is O, the extension lines of the two edges of the longitudinal strip hole 79 pass through the center O, the angle between the two extension lines is β, the angle between one extension line and the horizontal line is α, and the angle between the other extension line and the horizontal line is γ. Preferably, 15°<β≤45°, α=γ, preferably, β=45°.

[0035] Preferably, a second driving cylinder 61 is provided between the first outer piston sleeve 10 and the outer sleeve 9, and a second driving cylinder 61 is provided between the second outer piston sleeve 13 and the outer sleeve 9. By extending and retracting the second driving cylinder 61, the displacement of the first outer piston sleeve 10 and the second outer piston sleeve 13 into the outer sleeve 9 can be controlled. Preferably, the second driving cylinder 61 is fixed at one side of the first support rod 51 and / or the second support rod 52 and the outer sleeve 9.

[0036] Preferably, if Figure 2-3 , Fig.13 As shown, the first L-shaped support plate 20 and the second L-shaped support plate 21 have the same structure, both including a transverse sliding plate 80 and a vertical support plate 62. The transverse sliding plate 80 is slidably arranged on the left and right sides of the fixed support plate 19. In addition, a transverse driving source is arranged between the transverse sliding plate 80 and the fixed support plate 19. The transverse driving source can be a telescopic cylinder, which will not be described here. Preferably, the driving cylinder 18 is fixedly arranged on the inner side of the vertical support plate 62. In the horizontal projection direction of the vertical support plate 62, the driving cylinder 18 overlaps with the hollow cylinder 3 54 of the first inner piston sleeve 11. In the horizontal projection direction of the vertical support plate 62, the driving cylinder 18 overlaps with the hollow cylinder 3 54 of the second inner piston sleeve 14.

[0037] Preferably, the first inner sliding column 12, the first inner piston sleeve 11 and the first outer piston sleeve 10 can only slide axially and cannot rotate relative to each other, such as by setting a boss and a slide groove structure. Similarly, the second inner sliding column 15, the second inner piston sleeve 14 and the second outer piston sleeve 13 can only slide axially and cannot rotate relative to each other. The terminal arc plate 143 can only slide along the axial direction of the outer sleeve 9 and cannot rotate relative to each other, such as by setting a slider on the inner side of the terminal arc plate 143 and a slide groove on the outer side of the outer sleeve 9. The sliding connection between the movable outer ring 32 and the terminal arc plate 143 can be specifically set as a convex block on the outer side of the terminal arc plate 143, and a flange extending inward is set in the first receiving ring groove 35 or the second receiving ring groove 36 for receiving the terminal arc plate 143. The flange can keep the convex block stuck in the first receiving ring groove 35 or the second receiving ring groove 36, which can prevent the detachment and ensure that the movable outer ring 32 and the terminal arc plate 143 can rotate freely.

[0038] like Figure 1 As shown, the base 5 includes a support plate 68 and four support legs 69 arranged at the lower end of the support plate 68, and a first support plate 70 and a second support plate 71 are also arranged at the upper end of the support plate 68. The fixed guide roller 2 is rotatably arranged between the first support plate 70 and the second support plate 71. The first support plate 70 and the second support plate 71 are located at the left end of the support plate 68, and a third support plate 72 and a fourth support plate 73 are also arranged on the upper side of the right end of the support plate 68. The third support plate 72 and the fourth support plate 73 are both provided with elongated holes 74 arranged along the vertical direction. The movable guide roller 3 can slide in the vertical direction along the elongated holes 74. For example, the sliding can be achieved by a telescopic cylinder. This is common knowledge in the art and will not be repeated here. A left limit plate 75 and a right limit plate 76 are provided in the middle of the support plate 68 , the lifting support frame assembly 6 is located between the left limit plate 75 and the right limit plate 76 , and the lower end of the lifting cylinder 18 is fixedly provided on the upper end of the support plate 68 .

[0039] In order to facilitate those skilled in the art to clearly understand the working principle of the microfiber leather coating device of Example 1, it is specifically described as follows: Figure 4 As shown in (a), a reel 78 and a reel 77 are respectively wound around the two ends of the microfiber leather fabric substrate 1, and the reel 77 is used to reel in the surface-coated microfiber leather fabric substrate 1, and the reel 78 cooperates with the reel 77 to discharge the material. In the initial state, the fixed guide roller 2 and the movable guide roller 3 are at the same horizontal height, and the coating roller group 4 is lower than the fixed guide roller 2, so that the coating roller group 4 is a certain distance away from the microfiber leather fabric substrate 1. When the microfiber leather fabric substrate 1 needs to be coated, as shown in FIG. Figure 4As shown in (b), the lifting cylinder 18 of the coating roller group 4 is extended, driving the upper surface of the coating roller group 4 to be flush with the upper surface of the fixed guide roller 2, and at the same time driving the movable guide roller 3 to slide downward, so that the movable guide roller 3 is away from the microfiber leather fabric substrate 1, and then the first L-shaped support plate 20 and the second L-shaped support plate 21 are driven to approach each other, and the first inner sliding column 12 and the second inner sliding column 15 squeeze the coating liquid in the outer sleeve 9, and the squeezed coating liquid converges to the surface of the hollow cylinder 27. At the same time, part of the coating liquid is sprayed out from the outer longitudinal through hole 49 through the fan-shaped blind hole 255 and the fan-shaped blind hole 48, thereby avoiding When the first inner sliding column 12 and the second inner sliding column 15 are squeezed inward, only the middle part has the coating liquid, and the first inner sliding column 12 and the second inner sliding column 15 that are close to each other drive the end arc plates 43 at the ends of the first pull rope assembly 25 and the second pull rope assembly 26 to slide outward, thereby pulling the movable outer ring 32 to slide outward, and the first spring and the second spring arranged between the movable outer ring 32 and the movable inner ring 31 are stretched and deformed, thereby driving the movable inner ring 31 to slide outward as well, so that the rolling ring group 22 changes from the retracted state to the expanded state, so that the transverse strip hole group 23 and the longitudinal strip hole group 24 are connected, forming a plurality of coating liquid spraying out. Due to the squeezing of the first inner sliding column 12 and the second inner sliding column 15, the coating liquid can be sprayed toward the microfiber leather fabric substrate 1 at a certain speed. At this time, the winding roller 77 is driven to reel at the same time, so that the microfiber leather fabric substrate 1 moves toward the winding roller 77 at a certain speed. In addition, the movable outer ring 32 and the movable inner ring 31 sliding outward can unfold the microfiber leather fabric substrate 1 to prevent the microfiber leather fabric substrate 1 from having wrinkles or folded parts on the surface and affecting the coating effect, so as to achieve a better coating effect. After the rolling ring group 22 is unfolded to the maximum position (that is, the edge of the movable inner ring 31 is located at the edge of the movable outer ring 32), the coating liquid can be sprayed toward the microfiber leather fabric substrate 1 at a certain speed. , the edge of the fixed inner ring 30 is located at the edge position of the movable outer ring, and the position can be obtained by the detection of a distance sensor or a limit sensor), the first L-shaped support plate 20 and the second L-shaped support plate 21 stop moving, the winding roller 77 stops winding, and the movable guide roller 3 slides upward, so that the upper surface of the movable guide roller 3 is flush with the upper surface of the fixed guide roller 2, so that the lifting cylinder 18 retracts, and the coating roller group 4 is separated from the microfiber leather fabric substrate 1, and then the compensation cylinder 64 of the cable length adjustment assembly 63 retracts, the pull rope 44 is relaxed, the first spring and the second spring retract, and the movable inner ring 31 and the movable outer ring 32 slide inward and retract, and finally as shown in FIG. Figure 5As shown, it is in a retracted state, the transverse strip hole group 23 and the longitudinal strip hole group 24 are in a closed state, and then the lifting cylinder 18 is driven to extend, so that the coating roller group 4 is close to the microfiber leather fabric substrate 1, and the movable guide roller 3 is driven to slide downward to separate from the microfiber leather fabric substrate 1, and the first inner sliding column 12 and the second inner sliding column 15 are continued to be driven inward, and the winding roller 77 is driven again to perform the winding action, and the coating operation is continued to be completed, and this is repeated; after the first inner sliding column 12 and the second inner sliding column 15 are close to each other, the driving cylinder 8 can be continued to be extended to drive The first inner piston sleeve 11 and the second inner piston sleeve 14 continue to slide inwards, and continue to squeeze the coating liquid in the outer sleeve 9. The coating liquid can enter the outer longitudinal through hole 2 56 through the fan-shaped blind hole 2 55 and reach the longitudinal strip hole group 24. After the first inner piston sleeve 11 and the second inner piston sleeve 14 abut each other, the driving cylinder 2 61 continues to retract, driving the first outer piston sleeve 10 and the second outer piston sleeve 13 to squeeze the coating liquid in the outer sleeve 9 inwards. The coating liquid enters the outer longitudinal through hole 1 49 after passing through the fan-shaped blind hole 1 48, and finally reaches the longitudinal strip hole group 24. Since the fixed inner ring 30 and the movable outer ring 32, and the movable inner ring 31 and the movable outer ring 32 are connected by springs, the rotation of each movable inner ring and the movable outer ring is linked. Through this motion coating method, it can also ensure that when coating a relatively wide leather, since the rotation between each movable inner ring and the movable outer ring is linked, it can also prevent the leather from deflecting to the greatest extent, and can better coat the microfiber leather. Example 2

[0040] A waterproof and breathable high wear-resistant microfiber leather is also provided. The waterproof and breathable high wear-resistant microfiber leather is manufactured by the microfiber leather applicator of Example 1. The specific manufacturing process is as follows: 1. Wear-resistant coating configuration: Take out a proper amount of polyurethane resin, then add a proper amount of aluminum oxide powder and silicon carbide powder, react at high temperature, stir until the polyurethane resin is completely dissolved to form a uniform resin solution, then add a proper amount of leveling agent and defoaming agent to mix, use a filter to filter the mixed coating to remove impurities and particles, and let the filtered coating stand at a proper temperature for maturation to form a wear-resistant layer coating. The composition of each material of the wear-resistant layer can be calculated by weight: 100 parts of polyurethane resin, 20 parts of aluminum oxide, 20 parts of silicon carbide, 10 parts of leveling agent and 5 parts of defoaming agent; 2. Preparation of microfiber leather fabric substrate 1: The sea-island fiber nonwoven fabric is used as a substrate, and the nonwoven fabric is impregnated with the nonwoven fabric using a wet process. The impregnation slurry includes polyurethane, dimethylformamide and an oily water-repellent. After wet coagulation, a sea-island fiber / polyurethane composite material is formed, and then the fiber is opened (such as alkali reduction or toluene reduction) to obtain a microfiber fiber / polyurethane composite material, that is, a microfiber leather fabric substrate 1; wherein the water-repellent is: a mixture of an alkane long-chain fluorine-free water-repellent and water, and the mass percentage of the hydrocarbon long-chain fluorine-free water-repellent in the solution is 10-12%; because the water-repellent is added to the impregnation liquid, the prepared microfiber synthetic leather has higher air permeability, water vapor permeability and waterproof performance; 3. Paint coating: The wear-resistant layer coating obtained in step one is added to the coating roller group 4 of the microfiber leather coater, so that the microfiber leather fabric substrate 1 passes through the coating roller group 4, squeezing the first piston assembly 16 and the second piston assembly 17, so that the rolling ring group 22 changes from a retracted state to an expanded state, and the rolling ring group 22 stretches the microfiber leather fabric substrate 1 laterally. At the same time, the coating is sprayed out from a plurality of through holes formed by the connected transverse strip hole group 23 and the longitudinal strip hole group 24, coating the microfiber leather fabric substrate 1 to form a waterproof and breathable high-wear-resistant microfiber leather.

[0041] Furthermore, the weight fractions of the components of the impregnation slurry in step 2 are as follows: polyurethane, dimethylformamide, and oily water repellent, in the weight proportions of 100:50:3, respectively.

[0042] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A microfiber leather applicator, comprising: A coating roller group (4) and a base (5), wherein the coating roller group (4) can be lifted and moved in the vertical direction of the base (5), and is characterized in that: the coating roller group (4) includes a lifting support frame group (6) and a coating sleeve assembly (7), and the coating sleeve assembly (7) includes an outer sleeve (9), a first piston assembly (16), a second piston assembly (17), a first pull rope assembly (25), a second pull rope assembly (26) and a rolling ring assembly (22), and the outer sleeve (9) includes a hollow cylinder (27), and in the hollow cylinder (27 ) is provided with a longitudinal strip hole group (24) on the side wall, the rolling ring group (22) is rotatably arranged on the outside of the outer sleeve (9), and the rolling ring group (22) is provided with a transverse strip hole group (23), one end of the first piston assembly (16) is slidably arranged on the left side of the outer sleeve (9), and the other end of the first piston assembly (16) is connected to one end of the lifting support frame group (6), one end of the second piston assembly (17) is slidably arranged on the right side of the outer sleeve (9), and the other end of the second piston assembly (17) is connected to the lifting support frame group (6). The other end of the lifting support frame group (6), one end of the first pull rope assembly (25) is connected to the first piston assembly (16), and the other end is connected to one side of the rolling ring group (22); one end of the second pull rope assembly (26) is connected to the second piston assembly (17), and the other end is connected to the other side of the rolling ring group (22); when the lifting support frame group (6) is laterally retracted, the coating roller group (4) is in a coating state, and the first pull rope assembly (25) and the second pull rope assembly (26) pull the rolling ring group (22) to expand. The transverse strip hole group (23) is connected to the longitudinal strip hole group (24), and the rolling ring group (22) stretches the microfiber leather fabric base material (1), so that the coating liquid in the hollow cylinder (27) can be coated on the surface of the microfiber leather fabric base material (1). After the rolling ring group (22) is unfolded, the coating roller group (4) descends and leaves the surface of the microfiber leather fabric base material (1), and the coating roller group (4) is in a reset state, the rolling ring group (22) contracts, and the transverse strip hole group (23) and the longitudinal strip hole group (24) are closed.

2. The microfiber leather applicator according to claim 1, characterized in that: The invention also comprises a fixed guide roller (2) and a movable guide roller (3), wherein the fixed guide roller (2), the coating roller group (4) and the movable guide roller (3) are arranged in sequence in a transverse direction along the base (5), and the movable guide roller (3) can be lifted and moved along the vertical direction of the base (5); the lifting support frame group (6) comprises a lifting cylinder (18), a fixed support plate (19), a first L-shaped support plate (20) and a second L-shaped support plate (21), wherein the fixed support plate (19) is arranged at the upper end of the lifting cylinder (18), the first L-shaped support plate (20) and the second L-shaped support plate (21) are slidably arranged at the two ends of the fixed support plate (19), the first L-shaped support plate (20) is connected to the first piston assembly (16), and the second L-shaped support plate (21) is connected to the first piston assembly (16). The second piston assembly (17) is connected, and when the lifting cylinder (18) is extended, the coating roller group (4) can be driven to approach the microfiber leather fabric substrate (1). At the same time, the movable guide roller (3) moves downward away from the microfiber leather fabric substrate (1), and the first L-shaped support plate (20) and the second L-shaped support plate (21) continue to approach each other, so that the coating roller group (4) is in a coating state. When the coating roller group (4) is in a reset state, the microfiber leather fabric substrate (1) is supported by the fixed guide roller (2) and the movable guide roller (3).

3. The microfiber leather applicator according to claim 2, characterized in that: The pull rope (44) of the first pull rope assembly (25) and the pull rope (44) of the second pull rope assembly (26) are both wound with a rope length adjustment assembly (63), the rope length adjustment assembly (63) comprising a first rope wheel (65), a second rope wheel (66), a third rope wheel (67) and a compensation cylinder (64), the second rope wheel (66) being arranged at the end of the compensation cylinder (64), the first rope wheel (65) and the third rope wheel (67) being arranged at both ends of the compensation cylinder (64), the first rope wheel (65), the second rope wheel (66) and the third rope wheel (67) being arranged in a herringbone shape, and the pull rope (44) is horizontally wound around the rope wheel (65). After passing the first rope wheel (65), it is wound upwardly on the second rope wheel (66), then passes downwardly through the third rope wheel (67), and finally is wound horizontally out of the third rope wheel (67). The compensation cylinder (64) is in an extended state. When the first L-shaped support plate (20) and the second L-shaped support plate (21) move inwardly, the compensation cylinder (64) is in a locked state. When the first L-shaped support plate (20) and the second L-shaped support plate (21) stop and the rolling ring group (22) needs to be reset, the compensation cylinder (64) is retracted, so that the pull rope (44) is in a relaxed state and the rolling ring group (22) is retracted and reset.

4. The microfiber leather applicator according to claim 3, characterized in that: The rolling ring group (22) includes a fixed inner ring (30), a plurality of movable inner rings (31) and a plurality of movable outer rings (32). The fixed inner ring (30) can rotate around the axial direction of the outer sleeve (9) but cannot slide along the axial direction of the outer sleeve (9). The fixed inner ring (30) is rotatably arranged at the center of the outer sleeve (9). Along the axial direction extending from the center of the outer sleeve (9) to both ends, the movable outer ring (32), the movable inner ring (31) and the movable outer ring (32) are repeatedly arranged in sequence. The left end and the right end of the fixed inner ring (30) are connected to the adjacent movable outer rings (32) through a plurality of first springs, and the left end and the right end of the movable inner ring (31) are connected to the adjacent movable outer rings (32) through a plurality of second springs. The first spring and the second spring are in a contracted state in an initial state. In this way, the rolling ring group (22) can be in a contracted state in an initial state. In the retracted state, the fixed inner ring (30) and the movable inner ring (31) are both inside the movable outer ring (32), and the plurality of movable outer rings (32) are close to each other. The first drawstring assembly (25) is slidably arranged on the left side of the leftmost movable outer ring (32), and the second drawstring assembly (26) is slidably arranged on the right side of the rightmost movable outer ring (32). By pulling the first drawstring assembly (25) and the second drawstring assembly (26), the movable outer ring (32) and the movable inner ring (31), and the fixed inner ring (30) and the movable outer ring (32) are unfolded by overcoming the elastic force of the first spring and the second spring, so that the rolling ring group (22) is in the unfolded state. At this time, the adjacent movable outer rings (32) are separated from each other, exposing the movable inner ring (31). The sliding of the movable outer ring (32) and the movable inner ring (31) can stretch the tightly attached microfiber leather fabric substrate (1).

5. The microfiber leather applicator according to claim 4, characterized in that: The movable outer ring (32) includes a ring body 1 (33), and a plurality of first transverse strip holes (34) are arranged on the circumferential side of the ring body 1 (33); the fixed inner ring (30) includes a ring body 2 (37), and a plurality of second transverse strip holes (38) are arranged on the circumferential side of the ring body 2 (37); the movable inner ring (31) includes a ring body 3 (40), and a plurality of third transverse strip holes (41) are arranged on the circumferential side of the ring body 3 (40); the first transverse strip holes (34), the second transverse strip holes (38) and the third transverse strip holes (41) form the transverse strip hole group (23).

6. The microfiber leather applicator according to claim 5, characterized in that: An intermediate limiting ring platform (42) is arranged on the outer periphery of the hollow cylinder body (27) and at the center of the hollow cylinder body (27); an annular limiting groove (39) is arranged at the inner center of the ring body (37); the intermediate limiting ring platform (42) is accommodated in the annular limiting groove (39); and an inner through hole (57) is arranged in the hollow cylinder body (27) and passes through the left and right sides of the hollow cylinder body (27).

7. The microfiber leather applicator according to claim 6, characterized in that: The first piston assembly (16) comprises a first inner sliding column (12), a first inner piston sleeve (11) and a first outer piston sleeve (10); the second piston assembly (17) comprises a second inner sliding column (15), a second inner piston sleeve (14) and a second outer piston sleeve (13); the first inner piston sleeve (11) is sleeved on the outside of the first inner sliding column (12); the first outer piston sleeve (10) is sleeved on the outside of the first inner piston sleeve (11); the first outer piston sleeve (10) passes through the left side of the hollow cylinder (27); the second inner piston sleeve (14) is sleeved on the outside of the second inner sliding column (15); the second outer piston sleeve (13) is sleeved on the outside of the second inner piston sleeve (14); the second outer piston sleeve (13) passes through the right side of the hollow cylinder (27).

8. The microfiber leather applicator according to claim 7, characterized in that: The first pull rope assembly (25) and the second pull rope assembly (26) have the same structure, and both include an end arc plate (43), the pull rope (44) and the cable length adjustment assembly (63). One end of the end arc plate (43) is slidably arranged on the left end of the leftmost movable outer ring (32) or the right end of the rightmost movable outer ring (32). The other end of the end arc plate (43) is connected to one end of the pull rope (44). The other end of the pull rope (44) is connected to the first inner sliding column (12) or the second inner sliding column (15). The pull rope (44) passes through the cable length adjustment assembly (63). The cable length adjustment assembly (63) is arranged on the outer sleeve (9).

9. The microfiber leather applicator according to claim 7 or 8, characterized in that: The first outer piston sleeve (10) and the second outer piston sleeve (13) have the same structure, and both include a hollow cylinder body (47), a first support rod (51), a second support rod (52), a connecting shaft (53) and a first guide pulley (45). An inner through hole (58) is provided in the hollow cylinder body (47). A fan-shaped blind hole (48) is provided axially at the side wall of the hollow cylinder body (47). At the fan-shaped blind hole (48), an outer longitudinal through hole (49) and an inner longitudinal through hole (50) are provided in sequence on the hollow cylinder body (47) along the radial direction. The first support rod (51) and the second support rod (52) are respectively arranged on the outer side of the hollow cylinder body (47). The first support rod (51) and the second support rod (52) are clamped at both ends of the outer longitudinal through hole (49). The two ends of the connecting shaft (53) are respectively fixedly provided. At the upper ends of the first support rod (51) and the second support rod (52), the first guide pulley (45) is rotatably arranged on the connecting shaft (53), and the pull rope (44) is guided by the first guide pulley (45); the first inner piston sleeve (11) and the second inner piston sleeve (14) have the same structure, both comprising a hollow cylinder three (54), an inner through hole three (59) is opened on the inner side of the hollow cylinder three (54), a fan-shaped blind hole two (55) is opened axially at the side wall of the hollow cylinder three (54), and an outer longitudinal through hole two (56) is opened on the outer side of the hollow cylinder three (54) along the radial direction at the fan-shaped blind hole two (55), and a second guide pulley (46) is arranged at one end of the hollow cylinder three (54) away from the opening of the fan-shaped blind hole two (55), and the pull rope (44) is guided by the second guide pulley (46).

10. A waterproof, breathable, highly wear-resistant microfiber leather, characterized by: The waterproof, breathable, high-wear-resistant microfiber leather is manufactured by the microfiber leather applicator described in any one of claims 5 to 9, and the manufacturing process of the waterproof, breathable, high-wear-resistant microfiber leather is as follows:

1. Wear-resistant coating configuration: Take out the polyurethane resin, add alumina powder and silicon carbide powder, react at high temperature, stir until the polyurethane resin is completely dissolved to form a uniform resin solution, then add a leveling agent and a defoaming agent to mix, use a filter to filter the mixed coating, let the filtered coating stand for maturation, and form a wear-resistant coating; 2. Preparation of microfiber leather fabric base material: Using a sea-island fiber nonwoven fabric as a substrate, the nonwoven fabric is impregnated with the nonwoven fabric using a wet process, and the impregnation slurry includes polyurethane, dimethylformamide and an oily water-repellent agent, and after wet coagulation, a sea-island fiber and polyurethane composite material is formed, and then alkali reduction or toluene reduction is performed to obtain the microfiber leather fabric substrate (1); 3. Paint coating: The wear-resistant layer coating obtained in step 1 is added to the coating roller group (4) of the microfiber leather coater, so that the microfiber leather fabric substrate (1) passes through the coating roller group (4), squeezing the first piston assembly (16) and the second piston assembly (17), and the rolling ring group (22) changes from a retracted state to an expanded state. The rolling ring group (22) stretches the microfiber leather fabric substrate (1) laterally, and at the same time, the coating is sprayed out from a plurality of through holes formed by the connected transverse strip hole group (23) and the longitudinal strip hole group (24), coating the microfiber leather fabric substrate (1) to form a waterproof and breathable high wear-resistant microfiber leather.

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