Continuous, automatic and uniform sizing device for water-based PU synthetic leather

Abstract

The utility model discloses a water-based PU synthetic leather continuous automatic uniform sizing device which comprises a base of a U-shaped structure, a main roller is rotationally connected to the middle of the base, a slurry storage box is fixedly connected to the inner side of the base and located on one side below the main roller, and a first sizing roller is rotationally connected to the inner side of the base and located in the slurry storage box. A conveying roller is rotationally connected to the inner side of the base and located on the side obliquely above the main roller, the conveying roller is located on the side, opposite to the first sizing roller, of the main roller, a first conveying pipe is fixedly connected to the inner side of the base and located above the position, close to the main roller, of the conveying roller, and a plurality of first discharging pipes are evenly and fixedly connected to the bottom of the first conveying pipe. By means of the structure, the first discharging pipe and the slurry storage box are arranged on the upper side and the lower side of the main roller, double-face sizing of synthetic leather is achieved, continuous, automatic and uniform sizing work can be achieved, the production efficiency can be improved, and the coating uniformity of the synthetic leather ground can be guaranteed by arranging the second sizing roller and the second discharging pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of synthetic leather production, in particular to a device for continuous automatic and uniform sizing of water-based PU synthetic leather. Background Art

[0002] Water-based PU synthetic leather is closer to natural leather than regular artificial leather, and therefore is widely used in products such as clothing, shoes, sofas, luggage, automobiles, and balls. Sizing is a crucial step in the production of synthetic leather, not only enhancing its wear, tear, and water resistance, but also improving its feel, making it softer and more comfortable.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed "a continuous, automatic and uniform sizing device for water-based PU synthetic leather", and its application number is "202222438980.6". The above patent mainly includes a first vertical plate and a second vertical plate, and one end of the upper end surface of the first vertical plate and the second vertical plate is commonly connected to a U-shaped plate, and a protrusion is constructed on one side of the U-shaped plate, and an inclined plate is slidably inserted and installed on the protrusion, and a fastening bolt that abuts the inclined plate is spirally connected on the protrusion, and a cylinder is installed above the U-shaped plate, and the cylinder is supported by two vertical rods on the upper end surface of the U-shaped plate, and a horizontal plate is constructed at the top of the cylinder, and a propeller is rotatably connected to the horizontal plate, and the bottom end of the propeller is rotatably connected to the bottom end of the cylinder, and the top end of the propeller is rotatably connected to the horizontal plate and extends out of the upper end surface of the horizontal plate, and the extended part of the propeller is equipped with a first rotating motor. Although the above sizing device can flatten the slurry on the surface of the synthetic leather; it can also avoid slurry deposition. However, the aforementioned sizing device can only perform single-sided sizing. As market demands for synthetic leather quality continue to rise, double-sided sizing can significantly improve the physical properties and aesthetics of synthetic leather, meeting diverse application needs. The aforementioned sizing device struggles to meet the demands of modern production, potentially requiring additional steps such as flipping and re-sizing during the production process, increasing the complexity and time cost of the production process. Therefore, the present invention provides a continuous, automatic, and uniform sizing device for water-based PU synthetic leather to address the issues raised in the aforementioned background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a continuous, automatic and uniform sizing device for water-based PU synthetic leather. By arranging a first discharge pipe and a slurry storage box on the upper and lower sides of a main roller, double-sided sizing of the synthetic leather is achieved, and continuous, automatic and uniform sizing can be achieved, which is beneficial to improving production efficiency. The second sizing roller and the second discharge pipe are arranged to ensure the uniformity of the synthetic leather floor coating.

[0005] To achieve the above-mentioned purpose, a continuous, automatic and uniform sizing device for water-based PU synthetic leather is provided, comprising a base with a U-shaped structure, a main roller is rotatably connected to the middle part of the base, a slurry storage box is fixedly connected to the inner side of the base and located obliquely below the main roller, a first sizing roller is rotatably connected to the inner side of the base and located inside the slurry storage box, a conveying roller is rotatably connected to the inner side of the base and located obliquely above the main roller, the conveying roller is located on the side opposite to the main roller and the first sizing roller, a first feed pipe is fixedly connected to the inner side of the base and located above the conveying roller close to the main roller, and a plurality of first discharge pipes are evenly fixedly connected to the bottom of the first feed pipe.

[0006] According to the described continuous automatic and uniform sizing device for water-based PU synthetic leather, a second sizing roller is rotatably connected to the inner side of the base and located obliquely below the main roller. The second sizing roller is arranged adjacent to the conveying roller. A second feed pipe is fixedly connected to the inner side of the base and located above the second sizing roller. A plurality of second discharge pipes are evenly fixedly connected to the side of the second feed pipe close to the main roller, and the second discharge pipes are all inclined toward the position close to the second sizing roller and the main roller.

[0007] According to the described continuous automatic and uniform sizing device for water-based PU synthetic leather, both ends of the main roller are rotatably connected to the first rotating shaft, the first rotating shaft is fixedly connected to the inside of the base, both ends of the first sizing roller, the second sizing roller and the conveying roller are rotatably connected to the second rotating shaft, the second rotating shaft is slidably connected to the inside of the base, and a cylinder is fixedly connected to the outside of the base and on the side close to the second rotating shaft, and the piston rod of the cylinder is fixedly connected to the adjacent second rotating shaft.

[0008] According to the device for continuous automatic and uniform sizing of water-based PU synthetic leather, a feeding pipe is provided on the top of the slurry storage box and on one side of the first sizing roller.

[0009] According to the continuous automatic uniform sizing device for water-based PU synthetic leather, the second feed pipe is located between the conveying roller and the second sizing roller, and the bottom side of the second discharge pipe is located in the gap with the second sizing roller.

[0010] According to the device for continuous automatic uniform sizing of water-based PU synthetic leather, the top of the slurry storage box on the side opposite to the feeding pipe is close to the main roller.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the existing technology, this device for continuous automatic and uniform sizing of water-based PU synthetic leather realizes double-sided sizing of synthetic leather by arranging the first discharge pipe and slurry storage box on the upper and lower sides of the main roller, and can realize continuous automatic and uniform sizing, which is conducive to improving production efficiency.

[0013] 2. Compared with the existing technology, this water-based PU synthetic leather continuous automatic uniform sizing device, by setting a second sizing roller and a second discharge pipe, can make the slurry be evenly coated on the bottom surface of the synthetic leather to ensure the uniformity of the synthetic leather floor coating.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic structural diagram from a first perspective of a device for continuous, automatic, and uniform sizing of water-based PU synthetic leather according to the present invention;

[0017] Figure 2 This is a schematic structural diagram from a second perspective of a device for continuous, automatic, and uniform sizing of water-based PU synthetic leather according to the present invention;

[0018] Figure 3 The utility model is a schematic side view of the cross-sectional structure of a device for continuous automatic and uniform sizing of water-based PU synthetic leather.

[0019] Legend:

[0020] 1. Base; 2. Main roller; 3. First sizing roller; 4. Slurry storage box; 5. Conveying roller; 6. First feed pipe; 7. First discharge pipe; 8. First rotating shaft; 9. Second rotating shaft; 10. Cylinder; 11. Feeding pipe; 12. Second sizing roller; 13. Second feed pipe; 14. Second discharge pipe. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] Reference Figure 1-3The utility model relates to a continuous, automatic and uniform sizing device for water-based PU synthetic leather, which includes a base 1 with a U-shaped structure. A main roller 2 is rotatably connected to the middle part of the base 1. A slurry box 4 is fixedly connected to the inner side of the base 1 and located obliquely below the main roller 2. A first sizing roller 3 is rotatably connected to the inner side of the base 1 and located inside the slurry box 4. A conveying roller 5 is rotatably connected to the inner side of the base 1 and located obliquely above the main roller 2. The conveying roller 5 is located on the side opposite to the main roller 2 and the first sizing roller 3. A first feeding pipe 6 is fixedly connected to the inner side of the base 1 and located above the conveying roller 5 and the main roller 2. A plurality of first discharge pipes 7 are evenly fixedly connected to the bottom of the first feeding pipe 6.

[0023] The synthetic leather is laid sequentially from the area near the conveyor roller 5 and the main roller 2, and from the area near the first sizing roller 3 and the main roller 2. Slurry is added to the inside of the slurry storage box 4 and simultaneously conveyed to the inside of the first feed pipe 6. The slurry in the first feed pipe 6 flows through the first discharge pipe 7 to the area between the synthetic leather and the main roller 2. As the synthetic leather moves, the slurry evenly covers the top surface of the synthetic leather. When the synthetic leather passes the first sizing roller 3, the rotation of the first sizing roller 3 and the supply of slurry from the slurry storage box 4 evenly coat the bottom surface of the synthetic leather. This achieves sizing on both sides of the synthetic leather, and enables continuous, automatic, and uniform sizing, which helps improve production efficiency.

[0024] A second sizing roller 12 is rotatably connected to the inner side of the base 1 and located diagonally below the main roller 2. The second sizing roller 12 is arranged adjacent to the conveying roller 5. A second delivery pipe 13 is fixedly connected to the inner side of the base 1 and located above the second sizing roller 12. A plurality of second discharge pipes 14 are evenly fixedly connected to the side of the second delivery pipe 13 close to the main roller 2, and the second discharge pipes 14 are all inclined toward the location near the second sizing roller 12 and the main roller 2. To prevent the second delivery pipe 13 and the second discharge pipe 14 from affecting the movement of the conveying roller 5 or the second sizing roller 12, the second delivery pipe 13 is located between the conveying roller 5 and the second sizing roller 12, and the bottom side of the second discharge pipe 14 is located in the gap between the second sizing roller 12.

[0025] As the synthetic leather moves between the main roller 2 and the second sizing roller 12, the slurry is transported to the interior of the second delivery pipe 13 and flows through the second discharge pipe 14 to the space between the synthetic leather and the second sizing roller 12. As the synthetic leather is transported and moved, the slurry is evenly coated on the bottom surface of the synthetic leather, ensuring uniform coating of the synthetic leather floor.

[0026] Both ends of the main roller 2 are rotatably connected to the first rotating shaft 8, and the first rotating shaft 8 is fixedly connected to the inside of the base 1. Both ends of the first sizing roller 3, the second sizing roller 12 and the conveying roller 5 are rotatably connected to the second rotating shaft 9, and the second rotating shaft 9 is slidably connected to the inside of the base 1, and a cylinder 10 is fixedly connected to the outside of the base 1 and on the side close to the second rotating shaft 9, and the piston rod of the cylinder 10 is fixedly connected to the adjacent second rotating shaft 9.

[0027] The operation of the cylinder 10 drives the piston rod to extend and retract, which can drive the second rotating shaft 9 to move left and right. Under the action of the moving second rotating shaft 9, the corresponding first sizing roller 3, second sizing roller 12 or conveying roller 5 can be driven to move, so as to realize the bonding and separation operation with the main roller 2, thereby facilitating the laying of synthetic leather.

[0028] A feeding pipe 11 is provided on the top of the slurry storage box 4 and on one side of the first sizing roller 3. The feeding pipe 11 is used to add slurry inside the slurry storage box 4 to ensure that the slurry inside the slurry storage box 4 is at a suitable height and contacts the first sizing roller 3. The top of the slurry storage box 4 on the opposite side of the feeding pipe 11 is close to the main roller 2. The side of the slurry storage box 4 close to the main roller 2 can play a blocking role to prevent the rotating first sizing roller 3 from generating centrifugal force and causing slurry splashing.

[0029] Working Principle: Synthetic leather is laid sequentially from the area near the conveyor roller 5 and the main roller 2, and then from the area near the first sizing roller 3 and the main roller 2. Slurry is added to the slurry storage tank 4 and simultaneously conveyed to the first feed pipe 6. The slurry in the first feed pipe 6 flows through the first discharge pipe 7 to the area between the synthetic leather and the main roller 2. As the synthetic leather moves, the slurry is evenly coated on the top surface of the synthetic leather. When the synthetic leather passes the first sizing roller 3, the rotation of the first sizing roller 3 and the supply of slurry from the slurry storage tank 4 evenly coat the bottom surface of the synthetic leather. This achieves sizing on both sides of the synthetic leather, and enables continuous, automatic, and uniform sizing, which helps improve production efficiency.

[0030] At the same time, the synthetic leather is laid between the second sizing roller 12 and the main roller 2. As the synthetic leather moves between the main roller 2 and the second sizing roller 12, the slurry is transported to the inside of the second feeding pipe 13 and flows between the synthetic leather and the second sizing roller 12 through the second discharging pipe 14. As the synthetic leather is transported and moved, the slurry is evenly coated on the bottom surface of the synthetic leather, ensuring the uniformity of the synthetic leather floor coating.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A continuous automatic uniform sizing device for water-based PU synthetic leather, characterized in that: The invention comprises a base (1) of a U-shaped structure, wherein the middle part of the base (1) is rotatably connected to a main roller (2), the inner side of the base (1) and a side located obliquely below the main roller (2) is fixedly connected to a pulp storage box (4), the inner side of the base (1) and a side located inside the pulp storage box (4) is rotatably connected to a first sizing roller (3), the inner side of the base (1) and a side located obliquely above the main roller (2) is rotatably connected to a conveying roller (5), the conveying roller (5) is located on a side opposite to the main roller (2) and the first sizing roller (3), the inner side of the base (1) and a side located above the conveying roller (5) and the main roller (2) is fixedly connected to a first feeding pipe (6), and the bottom of the first feeding pipe (6) is evenly fixedly connected to a plurality of first discharging pipes (7); A second sizing roller (12) is rotatably connected to the inner side of the base (1) and located obliquely below the main roller (2). The second sizing roller (12) is arranged adjacent to the conveying roller (5). A second feed pipe (13) is fixedly connected to the inner side of the base (1) and located above the second sizing roller (12). A plurality of second discharge pipes (14) are evenly fixedly connected to the side of the second feed pipe (13) close to the main roller (2), and the second discharge pipes (14) are all inclined toward the position close to the second sizing roller (12) and the main roller (2).

2. The continuous automatic uniform sizing device for water-based PU synthetic leather according to claim 1, characterized in that: Both ends of the main roller (2) are rotatably connected to a first rotating shaft (8), and the first rotating shaft (8) is fixedly connected to the inside of the base (1). Both ends of the first sizing roller (3), the second sizing roller (12) and the conveying roller (5) are rotatably connected to a second rotating shaft (9), and the second rotating shaft (9) is slidably connected to the inside of the base (1). A cylinder (10) is fixedly connected to the outside of the base (1) and on a side close to the second rotating shaft (9), and the piston rod of the cylinder (10) is fixedly connected to the adjacent second rotating shaft (9).

3. The continuous automatic uniform sizing device for water-based PU synthetic leather according to claim 2, characterized in that: A feeding pipe (11) is provided on the top of the pulp storage box (4) and on one side of the first sizing roller (3).

4. The continuous automatic uniform sizing device for water-based PU synthetic leather according to claim 3, characterized in that: The second feeding pipe (13) is located between the conveying roller (5) and the second sizing roller (12), and the bottom side of the second discharging pipe (14) is located in the gap with the second sizing roller (12).

5. The continuous automatic uniform sizing device for water-based PU synthetic leather according to claim 4, characterized in that: The top of the pulp storage box (4) on the side opposite to the feeding pipe (11) is close to the main roller (2).

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