Washing device of PU synthetic leather wet-process production line

Abstract

The utility model relates to the technical field of PU synthetic leather production lines, and discloses a washing device of a PU synthetic leather wet process production line, which comprises a working table, a movable groove is arranged at the center of the working table, a T-shaped groove is arranged on the bottom wall of the movable groove, a T-shaped convex block is connected inside the T-shaped groove in a sliding mode, and the T-shaped convex block is connected with the working table in a sliding mode. The top of the T-shaped protruding block is fixedly connected with a cleaning box, the side wall of the cleaning box is rotationally connected with an inner roller shaft, the surface of the inner roller shaft is slidably connected with an outer roller shaft, the surface of the outer roller shaft is sleeved with a leather belt, and the right side of the top of the workbench is fixedly connected with a collecting box. The left side of the top of the workbench is fixedly connected with a first stand column. According to the washing device of the PU synthetic leather wet production line, the shaking mechanism is arranged, rapid reciprocating movement of the ejector rod is achieved, and therefore high-frequency vibration of clean water in the cleaning box is achieved, the surface impact and contact duration of the clean water and a leather belt is prolonged, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PU synthetic leather production lines, in particular to a water washing device for a PU synthetic leather wet production line. Background Art

[0002] In the wet production process, the base fabric is directly impregnated with the prepared PU resin. After a series of chemical reactions, it needs to be washed to remove excess solvents and unreacted chemicals. This washing process is crucial to ensure the quality and performance of PU synthetic leather.

[0003] After consulting the relevant patent document CN205188683U, it is found that there are still some problems with the water washing device of the existing PU synthetic leather wet production line. The optimization scheme currently on the market is mainly: by setting a spoiler device, the direction of the water flow and the moving direction of the synthetic leather after solidification form a convection, which is conducive to increasing the concentration difference and making the tap water and the DMF in the synthetic leather more efficiently eluted; however, after this method is filled with water in the water tank, it is difficult to clean the sewage after cleaning due to the fixed water tank, and the single use of the partition still has room for improvement in the cleaning effect. At the same time, there are water stains on the surface of the leather after cleaning, which is inconvenient for subsequent secondary processing. In view of the above problems, a water washing device for a PU synthetic leather wet production line is proposed, which can realize high-frequency water flow oscillation to increase the cleaning effect and remove water stains on the surface of the leather belt. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a water washing device for a PU synthetic leather wet production line.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water washing device for a PU synthetic leather wet production line, comprising a workbench, a movable groove is opened at the center of the workbench, a T-shaped groove is opened on the bottom wall of the movable groove, a T-shaped protrusion is slidably connected inside the T-shaped groove, a cleaning box is fixedly connected to the top of the T-shaped protrusion, an inner roller is rotatably connected to the side wall of the cleaning box, an outer roller is slidably connected to the surface of the inner roller, a leather belt is sleeved on the surface of the outer roller, a collecting box is fixedly connected to the right side of the top of the workbench, a first column is fixedly connected to the left side of the top of the workbench, a lower pressure roller is rotatably connected to the inner side of the first column, an upper pressure roller is meshed at the lower end of the lower pressure roller, and second columns are rotatably connected to the two ends of the upper pressure roller, and the second column is fixedly connected to the top of the workbench.

[0006] As a further improvement of the above scheme, a shaking mechanism is provided on one side of the cleaning box, a vertical plate is fixedly connected to the top right side of the workbench, a rotating shaft is rotatably connected to the inner side of the vertical plate, a dewatering plate is fixedly connected to the surface of the rotating shaft, and a telescopic spring is fixedly connected to the center of the surface of the dewatering plate.

[0007] As a further improvement of the above solution, one end of the telescopic spring away from the water removal plate is fixedly connected to a support plate, the support plate is fixedly connected to the side wall of the rotating shaft, and the water removal plate is symmetrically distributed up and down with the leather belt as the axis.

[0008] As a further improvement of the above scheme, the shaking mechanism includes a push rod, which is fixedly connected to the outer wall of the cleaning box, one end of the push rod is fixedly connected to a stop block, a return spring is sleeved on the surface of the push rod, one end of the return spring is fixedly connected to the stop block, and the other end is fixedly connected to a limiting block.

[0009] As a further improvement of the above scheme, the limit block is rotatably connected to the top rod, the bottom of the limit block is fixedly connected to a connecting plate, the other end of the connecting plate is fixedly connected to a positioning frame, the interior of the positioning frame is rotatably connected to a protrusion, and one side of the protrusion is fixedly connected to a motor.

[0010] As a further improvement of the above scheme, the diameter of the inner end of the protrusion is larger than the diameter of the outer end, the distance between the end of the protrusion with a smaller diameter and its axis is greater than the distance from its axis to the stopper, and the initial state of the reset spring is a contracted state.

[0011] As a further improvement of the above scheme, the lower pressure roller and the upper pressure roller are symmetrically distributed on the upper surface of the workbench with the cleaning box as the axis, the initial state of the telescopic spring is a stretched state, and the collecting box is located directly below the top of the dewatering plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The washing device of the PU synthetic leather wet production line, when the leather belt is being washed, first send the leather belt to the position between the lower pressure roller and the upper pressure roller. At this time, the leather belt will be transmitted to the inside of the cleaning box under the action of the lower pressure roller and the upper pressure roller. At this time, the leather belt is sleeved along the surface of the outer roller shaft, and then the other end is sent out of the device from between the lower pressure roller and the upper pressure roller at the opposite end. Then water is injected into the cleaning box until the surface of the outer roller shaft is submerged by water, and then the motor is started. At this time, the motor drives the convex block to rotate. Due to the setting of the shape of the convex block, the end with a smaller diameter touches the block and pushes the block forward. At this time, the reset spring is compressed, and the ejector rod pushes the cleaning box, and the cleaning box slides inside the T-slot. When the convex block rotates away from the surface of the block, the ejector rod is reset under the action of the reset spring, thereby resetting the cleaning box. Due to the high speed of the motor, the ejector rod can move back and forth quickly, thereby realizing high-frequency vibration of the clean water inside the cleaning box, increasing the surface impact and contact time of the clean water and the leather belt, and improving the cleaning effect.

[0014] 2. The water washing device of this PU synthetic leather wet production line, when the cleaning box is shaking, since the outer roller and the inner roller are in sliding connection, when the inner roller moves with the cleaning box, the outer roller can be kept in the initial state, avoiding the leather belt from falling off the inner roller. After the leather belt is cleaned, it will contact the top of the dewatering plate after passing through the lower pressure roller and the upper pressure roller at the exit. Since the telescopic spring applies pressure to the dewatering plate, the dewatering plate is close to the surface of the leather belt, and the top of the dewatering plate is in a flattened and sharp state, so that the water stains on the surface of the leather belt can be removed, which provides convenience for subsequent secondary processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the utility model from the upper right side perspective;

[0016] Figure 2 This is a schematic diagram of the utility model from a top view;

[0017] Figure 3 This is a schematic diagram of the internal cross-section of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the shaking mechanism of the utility model;

[0019] Figure 5 This is a schematic diagram of the connection between the water removal plate and the vertical plate of the utility model.

[0020] Description of main symbols:

[0021] 1. Workbench; 2. Movable groove; 3. T-slot; 4. T-shaped protrusion; 5. Cleaning box; 6. Inner roller; 7. Outer roller; 8. Leather belt; 9. Collecting box; 10. First column; 11. Lower pressure roller; 12. Upper pressure roller; 13. Second column; 14. Shaking mechanism; 141. Push rod; 142. Block; 143. Reset spring; 144. Limit block; 145. Connecting plate; 146. Positioning frame; 147. Protrusion; 15. Motor; 16. Vertical plate; 17. Rotating shaft; 18. Water removal plate; 19. Support plate; 20. Telescopic spring. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-5 A water washing device for a PU synthetic leather wet production line of the present embodiment comprises a workbench 1, a movable groove 2 is provided at the center of the workbench 1, a T-shaped groove 3 is provided on the bottom wall of the movable groove 2, a T-shaped protrusion 4 is slidably connected inside the T-shaped groove 3, a cleaning box 5 is fixedly connected to the top of the T-shaped protrusion 4, an inner roller 6 is rotatably connected to the side wall of the cleaning box 5, an outer roller 7 is slidably connected to the surface of the inner roller 6, a leather belt 8 is sleeved on the surface of the outer roller 7, a collecting box 9 is fixedly connected to the right side of the top of the workbench 1, a first column 10 is fixedly connected to the left side of the top of the workbench 1, a lower pressing roller 11 is rotatably connected to the inner side of the first column 10, an upper pressing roller 12 is meshed at the lower end of the lower pressing roller 11, and second columns 13 are rotatably connected to the two ends of the upper pressing roller 12, and the second column 13 is fixedly connected to the top of the workbench 1.

[0025] A shaking mechanism 14 is provided on one side of the cleaning box 5, a vertical plate 16 is fixedly connected to the top right side of the workbench 1, a rotating shaft 17 is rotatably connected to the inner side of the vertical plate 16, a dewatering plate 18 is fixedly connected to the surface of the rotating shaft 17, and a telescopic spring 20 is fixedly connected to the center of the surface of the dewatering plate 18.

[0026] One end of the telescopic spring 20 away from the water-removing plate 18 is fixedly connected to a support plate 19 , and the support plate 19 is fixedly connected to the side wall of the rotating shaft 17 . The water-removing plates 18 are symmetrically distributed up and down with the leather belt 8 as the axis.

[0027] The shaking mechanism 14 includes a push rod 141, which is fixedly connected to the outer wall of the cleaning box 5, one end of the push rod 141 is fixedly connected to a stopper 142, a return spring 143 is sleeved on the surface of the push rod 141, one end of the return spring 143 is fixedly connected to the stopper 142, and the other end is fixedly connected to a limiting block 144.

[0028] The limit block 144 is rotatably connected to the top rod 141. The bottom of the limit block 144 is fixedly connected to a connecting plate 145. The other end of the connecting plate 145 is fixedly connected to a positioning frame 146. The interior of the positioning frame 146 is rotatably connected to a protrusion 147. One side of the protrusion 147 is fixedly connected to the motor 15.

[0029] The diameter of the inner end of the projection 147 is larger than that of the outer end. The distance from the smaller diameter end of the projection 147 to its axis is greater than the distance from its axis to the stopper 142. The initial state of the return spring 143 is a contracted state.

[0030] The lower pressing roller 11 and the upper pressing roller 12 are symmetrically distributed on the upper surface of the workbench 1 with the cleaning box 5 as the axis. The initial state of the telescopic spring 20 is a stretched state, and the collecting box 9 is located directly below the top of the dewatering plate 18.

[0031] The working principle of a water washing device for a PU synthetic leather wet production line in the embodiment of the present application is as follows: when the leather belt 8 is being washed, the leather belt 8 is first sent to the position between the lower pressure roller 11 and the upper pressure roller 12. At this time, under the action of the lower pressure roller 11 and the upper pressure roller 12, the leather belt 8 is transmitted to the inside of the cleaning box 5. At this time, the leather belt 8 is sleeved along the surface of the outer roller 7, and then the other end is sent out of the device from between the lower pressure roller 11 and the upper pressure roller 12 at the opposite end. Then water is injected into the cleaning box 5 until the surface of the outer roller 7 is submerged by water, and then the motor 15 is started. At this time, the motor 15 drives the protrusion 147 to rotate. Due to the shape of the protrusion 147, when the end with a smaller diameter touches the stopper 142, the stopper 142 will be pushed forward. At this time, the reset spring 143 is compressed, and the push rod 141 pushes the cleaning box 5, and the cleaning box 5 slides inside the T-slot 3. When the protrusion 147 rotates away from the stopper 1 42, the top rod 141 is reset under the action of the reset spring 143, thereby resetting the cleaning box 5. Since the motor 15 rotates at a high speed, the top rod 141 can move back and forth quickly, thereby realizing high-frequency vibration of the clean water inside the cleaning box 5, and increasing the surface impact and contact time of the clean water and the leather belt 8; when the cleaning box 5 is shaking, since the outer roller 7 and the inner roller 6 are in sliding connection, when the inner roller 6 moves with the cleaning box 5, the outer roller 7 can be maintained in the initial state, avoiding the leather belt 8 from falling off the inner roller 6. After the leather belt 8 is cleaned, after passing through the lower pressure roller 11 and the upper pressure roller 12 at the outlet, it will contact the top of the dewatering plate 18. Since the telescopic spring 20 applies pressure to the dewatering plate 18, the dewatering plate 18 is close to the surface of the leather belt 8, and the top of the dewatering plate 18 is in a flattened and sharp state, so that the water stains on the surface of the leather belt 8 can be removed.

[0032] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A water washing device for a PU synthetic leather wet production line, characterized by: The invention comprises a workbench (1), wherein a movable groove (2) is provided at the center of the workbench (1), a T-shaped groove (3) is provided on the bottom wall of the movable groove (2), a T-shaped protrusion (4) is slidably connected inside the T-shaped groove (3), a cleaning box (5) is fixedly connected to the top of the T-shaped protrusion (4), an inner roller shaft (6) is rotatably connected to the side wall of the cleaning box (5), an outer roller shaft (7) is slidably connected to the surface of the inner roller shaft (6), a leather belt (8) is sleeved on the surface of the outer roller shaft (7), a collecting box (9) is fixedly connected to the right side of the top of the workbench (1), a first column (10) is fixedly connected to the left side of the top of the workbench (1), a lower pressure roller (11) is rotatably connected to the inner side of the first column (10), an upper pressure roller (12) is meshed at the lower end of the lower pressure roller (11), and second columns (13) are rotatably connected to the two ends of the upper pressure roller (12), and the second column (13) is fixedly connected to the top of the workbench (1).

2. The water washing device of the PU synthetic leather wet production line according to claim 1, characterized in that: A shaking mechanism (14) is provided on one side of the cleaning box (5); a vertical plate (16) is fixedly connected to the right side of the top of the workbench (1); a rotating shaft (17) is rotatably connected to the inner side of the vertical plate (16); a dewatering plate (18) is fixedly connected to the surface of the rotating shaft (17); and a telescopic spring (20) is fixedly connected to the center of the surface of the dewatering plate (18).

3. A water washing device for a PU synthetic leather wet production line as claimed in claim 2, characterized in that: One end of the telescopic spring (20) away from the dewatering plate (18) is fixedly connected to a support plate (19), and the support plate (19) is fixedly connected to the side wall of the rotating shaft (17). The dewatering plate (18) is symmetrically distributed up and down with the leather belt (8) as the axis.

4. The water washing device of the PU synthetic leather wet production line according to claim 2, characterized in that: The shaking mechanism (14) comprises a push rod (141), the push rod (141) being fixedly connected to the outer wall of the cleaning box (5), one end of the push rod (141) being fixedly connected to a stopper (142), a return spring (143) being sleeved on the surface of the push rod (141), one end of the return spring (143) being fixedly connected to the stopper (142), and the other end of the return spring (143) being fixedly connected to a limit block (144).

5. The water washing device of the PU synthetic leather wet production line according to claim 4, characterized in that: The limit block (144) is rotatably connected to the push rod (141); a connecting plate (145) is fixedly connected to the bottom of the limit block (144); a positioning frame (146) is fixedly connected to the other end of the connecting plate (145); a protrusion (147) is rotatably connected inside the positioning frame (146); and a motor (15) is fixedly connected to one side of the protrusion (147).

6. A water washing device for a PU synthetic leather wet production line as claimed in claim 5, characterized in that: The diameter of the inner end of the protrusion (147) is larger than that of the outer end, the distance from the end of the protrusion (147) with a smaller diameter to its axis is greater than the distance from its axis to the stopper (142), and the initial state of the return spring (143) is a contracted state.

7. The water washing device of the PU synthetic leather wet production line according to claim 2, characterized in that: The lower pressing roller (11) and the upper pressing roller (12) are symmetrically distributed on the upper surface of the workbench (1) with the cleaning box (5) as the axis, the initial state of the telescopic spring (20) is a stretched state, and the collecting box (9) is located directly below the top of the dewatering plate (18).

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