Washing machine for washing PU (polyurethane) wet synthetic leather bass and washing method thereof

Abstract

A washing machine for washing PU wet synthetic leather bass comprises a plurality of washing units connected in sequence, each washing unit comprises a rack, a water spraying system and a first transmission module, the racks of the adjacent washing units are assembled or fixedly connected, a washing tank is arranged on the upper portion of each rack, a transmission port is arranged between the adjacent racks, and the first transmission module is connected with the washing tank. The first conveying module comprises a roller shaft conveying assembly and an outer cover, and the outer cover comprises a cover body and a second conveying module arranged on the cover body; when the washing machine is in a multi-cleaning mode, the synthetic leather base sequentially penetrates through all the washing units through the conveying opening and the roll shaft conveying assembly, and distributed cleaning is conducted on the synthetic leather base through all the washing units; and when the washing machine is in a multi-synthetic-leather-base synchronous washing mode, the multiple synthetic leather bases correspond to the washing units in a one-to-one mode, and the synthetic leather bases enter the corresponding washing units through the second conveying module and the roller shaft conveying assembly to be washed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of synthetic leather cleaning, in particular to a water washing machine for PU wet synthetic leather base cleaning and a water washing method thereof. BACKGROUND

[0002] PU wet base is a semi-finished product of PU wet synthetic leather, which is made by wet process. The core process is to mix polyurethane resin with solvent (such as DMF), filler and additive, then coat or dip on the base cloth (such as textile cloth, non-woven fabric), and then immerse in water to replace the solvent, so that the polyurethane solidifies to form a porous structure. This porosity gives it air and moisture permeability, and the hand feel is close to natural leather. In the process of wet synthetic leather production, DMF solvent may remain on the surface of synthetic leather, and the synthetic leather needs to be washed to remove the residual DMF solvent on the surface of the synthetic leather. The existing synthetic leather washing machine can only wash a single synthetic leather, and cannot meet the demand of washing multiple synthetic leathers at the same time, and the function mode is relatively single. SUMMARY

[0003] In order to solve the above problems, the present application provides a water washing machine for PU wet synthetic leather base cleaning: A water washing machine for PU wet synthetic leather base cleaning, comprising a plurality of water washing units connected in sequence, the water washing unit comprising a rack, a water spraying system and a first transmission module, the racks of adjacent water washing units are assembled or fixedly connected with each other, the upper part of the rack is provided with a water washing tank for accommodating the first transmission module, a transmission port is provided between adjacent racks, and the water spraying system comprises upper and lower corresponding upper and lower nozzles; The first transmission module comprises a roller shaft transmission assembly and an outer cover covering the roller shaft transmission assembly, the roller shaft transmission assembly transmits the synthetic leather base, the roller shaft transmission assemblies of adjacent water washing units are communicated with each other through the transmission port, the synthetic leather base is provided with a cleaning gap for water spraying cleaning of the water spraying system relative to the roller shaft transmission assembly, the upper and lower parts of the roller shaft transmission assembly are respectively provided with the upper and lower nozzles, and the outer cover comprises a cover body and a second transmission module provided on the cover body; when the water washing machine is in multiple cleaning mode, the synthetic leather base passes through each water washing unit in sequence through the transmission port and the roller shaft transmission assembly, and the synthetic leather base is cleaned by each water washing unit; when the water washing machine is in multiple synthetic leather base synchronous cleaning mode, multiple synthetic leather bases correspond to water washing units one by one, and the synthetic leather base enters the corresponding water washing unit for cleaning through the second transmission module and the roller shaft transmission assembly.

[0004] Preferably, the roller transmission assembly is composed of a plurality of sequentially horizontally arranged roller groups, each roller group is composed of two transmission rollers adapted to each other in up and down directions, each transmission roller comprises a rotating shaft movably connected to the inner wall of the washing tank and a plurality of circular wheels fixed to the rotating shaft, the circular wheels are arranged along the axial direction of the rotating shaft, the circular wheels of different transmission rollers of the same roller group constitute a clamping transmission structure of the synthetic leather base, and the gap between the rotating shafts is the cleaning gap.

[0005] Preferably, the first transmission device comprises two installation vertical plates fixedly arranged in the washing tank, a driving motor fixedly arranged on the installation vertical plates, and a driving shaft connected to the driving motor, the end of the installation vertical plate is fixedly connected to the inner wall of the washing tank, the driving shaft is movably arranged on the first bearing seat arranged between the installation vertical plate and the inner wall of the washing tank, a plurality of bevel gears are sequentially arranged on the driving shaft in the axial direction, the bevel gears are in meshing transmission with the gears arranged on the end of the rotating shaft, and the rotating shaft is movably arranged on the two installation vertical plates.

[0006] Preferably, the upper spray head and the lower spray head are each composed of a water pipe and a plurality of spray heads arranged on the water pipe in the axial direction, the water pipe of the upper spray head passes through the opening groove of the cover, the water pipe of the lower spray head is arranged on the two installation vertical plates, the spray heads of the upper spray head are directed downward, the spray heads of the lower spray head are directed upward, and the spray heads are directed toward the roller transmission assembly for spraying and cleaning the synthetic leather base.

[0007] Preferably, the second transmission module comprises a plurality of side roller groups symmetrically arranged above the two sides of the cover and a plurality of unwinding shafts and winding shafts arranged above the cover, when the washing machine is in the synchronous cleaning mode of the plurality of synthetic leather bases, the synthetic leather bases are sequentially connected in transmission from the unwinding shaft, the side roller group on one side, the roller transmission assembly, the side roller group on the other side, and the winding shaft.

[0008] Preferably, the water spraying system comprises a water tank, a centrifugal pump, a pipeline, a control switch, and a spraying assembly, the water tank is arranged on the back of the rack, the centrifugal pump and the control switch are arranged on the bottom of the rack, the spraying assembly is the upper spray head and the lower spray head, and the pipeline connects each component of the water spraying system.

[0009] Preferably, the back of the rack is provided with a backwater tank communicated with the washing tank, the bottom of the washing tank is provided with a slope structure lower near one end of the backwater tank, the bottom of the backwater tank is provided with the water tank, the upper part of the water tank is provided with an upper opening communicated with the backwater tank, and the upper opening is detachably provided with a cylindrical filter screen. The user can directly pour water into the water tank from the upper end of the backwater tank, the sewage sprayed by the spraying assembly will flow back into the backwater tank due to the slope structure, the residues will be filtered by the cylindrical filter screen, and the purified water will enter the pipeline to realize water recycling.

[0010] Preferably, an extrusion roller is arranged between the roller transmission assembly and the transmission port for extruding water from the synthetic leather base.

[0011] A washing method using the washing machine, specifically as follows: S1: first determine the washing requirements of the synthetic leather base, if multiple washing is required, select S2, if no multiple washing is required, select S3; S2: according to the requirements, the synthetic leather base passes through the transmission port and the roller transmission assembly in sequence through each washing unit, and each washing unit is used for distributed cleaning of the synthetic leather base; S3: a plurality of synthetic leather bases correspond to a washing unit, and the synthetic leather base enters the corresponding washing unit through the second transmission module and the roller transmission assembly for cleaning.

[0012] Beneficial effects: the present application has two modes, which can realize multiple mode cleaning work for a single synthetic leather base, and can realize synchronous washing work for multiple synthetic leather bases, which is simple, flexible and easy to use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Structure schematic diagram of the embodiment.

[0014] Figure 2 Structure schematic diagram of the embodiment. Figure One .

[0015] Figure 3 Structure schematic diagram of the embodiment. Figure Two .

[0016] Figure 4 Structure schematic diagram of the embodiment. Figure 3 Enlarged schematic diagram of A in FIG. 4.

[0017] Figure 5 Structure schematic diagram of the embodiment. Figure Three .

[0018] Figure 6 Principle schematic diagram of the multiple synthetic leather base synchronous cleaning mode.

[0019] Figure 7 Structure schematic diagram of the outer cover.

[0020] FIG. 1 is a structure schematic diagram of the outer cover. FIG. 2 is a structure schematic diagram of the outer cover. FIG. 3 is a structure schematic diagram of the outer cover. FIG. 4 is a structure schematic diagram of the outer cover. FIG. 5 is a structure schematic diagram of the outer cover. FIG. 6 is a structure schematic diagram of the outer cover. FIG. 7 is a structure schematic diagram of the outer cover. FIG. 8 is a structure schematic diagram of the outer cover. FIG. 9 is a structure schematic diagram of the outer cover. FIG. 10 is a structure schematic diagram of the outer cover. FIG. 11 is a structure schematic diagram of the outer cover. FIG. 12 is a structure schematic diagram of the outer cover. FIG. 13 is a structure schematic diagram of the outer cover. FIG. 14 is a structure schematic diagram of the outer cover. FIG. 15 is a structure schematic diagram of the outer cover. FIG. 16 is a structure schematic diagram of the outer cover. FIG. 17 is a structure schematic diagram of the outer cover. FIG. 18 is a structure schematic diagram of the outer cover. FIG. 19 is a structure schematic diagram of the outer cover. FIG. 20 is a structure schematic diagram of the outer cover. FIG. 21 is a structure schematic diagram of the outer cover. FIG. 22 is a structure schematic diagram of the outer cover. FIG. 23 is a structure schematic diagram of the outer cover. FIG. 24 is a structure schematic diagram of the outer cover. FIG. 25 is a structure schematic diagram of the outer cover. FIG. 26 is a structure schematic diagram of the outer cover. FIG. 27 is a structure schematic diagram of the outer cover. FIG. 28 is a structure schematic diagram of the outer cover. FIG. 29 is a structure schematic diagram of the outer cover. FIG. 30 is a structure schematic diagram of the outer cover. FIG. 31 is a structure schematic diagram of the outer cover. FIG. 32 is a structure schematic diagram of the outer cover. FIG. 33 is a structure schematic diagram of the outer cover. FIG. 34 is a structure schematic diagram of the outer cover. FIG. 35 is a structure schematic diagram of the outer cover. FIG. 36 is a structure schematic diagram of the outer cover. FIG. 37 is a structure schematic diagram of the outer cover. FIG. 38 is a structure schematic diagram of the outer cover. FIG. 39 is a structure schematic diagram of the outer cover. FIG. 40 is a structure schematic diagram of the outer cover. FIG. 41 is a structure schematic diagram of the outer cover. FIG. 42 is a structure schematic diagram of the outer cover. FIG. 43 is a structure schematic diagram of the outer cover. FIG. 44 is a structure schematic diagram of the outer cover. FIG. 45 is a structure schematic diagram of the outer cover. FIG. 46 is a structure schematic diagram of the outer cover. FIG. 47 is a structure schematic diagram of the outer cover. FIG. 48 is a structure schematic diagram of the outer cover. FIG. 49 is a structure schematic diagram of the outer cover. FIG. 50 is a structure schematic diagram of the outer cover. FIG. 51 is a structure schematic diagram of the outer cover. FIG. 52 is a structure schematic diagram of the outer cover. FIG. 53 is a structure schematic diagram of the outer cover. FIG. 54 is a structure schematic diagram of the outer cover. FIG. 55 is a structure schematic diagram of the outer cover. FIG. 56 is a structure schematic diagram of the outer cover. FIG. 57 is a structure schematic diagram of the outer cover. FIG. 58 is a structure schematic diagram of the outer cover. FIG. 59 is a structure schematic diagram of the outer cover. FIG. 60 is a structure schematic diagram of the outer cover. FIG. 61 is a structure schematic diagram of the outer cover. FIG. 62 is a structure schematic diagram of the outer cover. FIG. 63 is a structure schematic diagram of the outer cover. FIG. 64 is a structure schematic diagram of the outer cover. FIG. 65 is a structure schematic diagram of the outer cover. FIG. 66 is a structure schematic diagram of the outer cover. FIG. 67 is a structure schematic diagram of the outer cover. FIG. 68 is a structure schematic diagram of the outer cover. FIG. 69 is a structure schematic diagram of the outer cover. FIG. 70 is a structure schematic diagram of the outer cover. FIG. 71 is a structure schematic diagram of the outer cover. FIG. 72 is a structure schematic diagram of the outer cover. FIG. 73 is a structure schematic diagram of the outer cover. FIG. 74 is a structure schematic diagram of the outer cover. FIG. 75 is a structure schematic diagram of the outer cover. FIG. 76 is a structure schematic diagram of the outer cover. FIG. 77 is a structure schematic diagram of the outer cover. FIG. 78 is a structure schematic diagram of the outer cover. FIG. 79 is a structure schematic diagram of the outer cover. FIG. 80 is a structure schematic diagram of the outer cover. FIG. 81 is a structure schematic diagram of the outer cover. FIG. 82 is a structure schematic diagram of the outer cover. FIG. 83 is a structure schematic diagram of the outer cover. FIG. 84 is a structure schematic diagram of the outer cover. FIG. 85 is a structure schematic diagram of the outer cover. FIG. 86 is a structure schematic diagram of the outer cover. FIG. 87 is a structure schematic diagram of the outer cover. FIG. 88 is a structure schematic diagram of the outer cover. FIG. 89 is a structure schematic diagram of the outer cover. FIG. 90 is a structure schematic diagram of the outer cover. FIG. 91 is a structure schematic diagram of the outer cover. FIG. 92 is a structure schematic diagram of the outer cover. FIG. 93 is a structure schematic diagram of the outer cover. FIG. 94 is a structure schematic diagram of the outer cover. FIG. 95 is a structure schematic diagram of the outer cover. FIG. 96 is a structure schematic diagram of the outer cover. FIG. 97 is a structure schematic diagram of the outer cover. FIG. 98 is a structure schematic diagram of the outer cover. FIG. 99 is a structure schematic diagram of the outer cover. FIG. 100 is a structure schematic diagram of the outer cover. FIG. 101 is a structure schematic diagram of the outer cover. FIG. 102 is a structure schematic diagram of the outer cover. FIG. 103 is a structure schematic diagram of the outer cover. FIG. 104 is a structure schematic diagram of the outer cover. FIG. 105 is a structure schematic diagram of the outer cover. FIG. 106 is a structure schematic diagram of the outer cover. FIG. 107 is a structure schematic diagram of the outer cover. FIG. 108 is a structure schematic diagram of the outer cover. FIG. 109 is a structure schematic diagram of the outer cover. FIG. 110 is a structure schematic diagram of the outer cover. FIG. 111 is a structure schematic diagram of the outer cover. FIG. 112 is a structure schematic diagram of the outer cover. FIG. 113 is a structure schematic diagram of the outer cover. DETAILED DESCRIPTION

[0021] The following is combined with Figures 1-7 The present invention is further described with Example 1.

[0022] Example 1: Figures 1-7 As shown, a water washing machine for cleaning PU wet synthetic leather base includes a plurality of water washing units connected in sequence, wherein the water washing unit includes a frame 1, a water spray system and a first transmission module, and the frames 1 of adjacent water washing units are assembled or fixedly connected to each other. A water washing tank 2 for accommodating the first transmission module is provided on the upper part of the frame 1, and a transmission port 3 is provided between adjacent frames 1. The water spray system includes upper and lower corresponding nozzles.

[0023] The first transfer module comprises a roller transfer assembly, a housing 4 covering the roller transfer assembly, two mounting plates 7 fixedly disposed within the washing tank 2, a drive motor fixedly mounted on the mounting plates 7, and a drive shaft 8 connected to the drive motor. The roller transfer assembly transfers synthetic leather base 10. The roller transfer assemblies of adjacent washing units are interconnected via a transfer port 3. A squeeze roller 23 is provided between the roller transfer assembly and the transfer port 3 to squeeze water from the synthetic leather base 10. The synthetic leather base 10 is provided with a cleaning gap relative to the roller transmission assembly for water spray cleaning by the water spray system. The roller transmission assembly comprises multiple horizontally arranged roller groups, each consisting of two transmission rollers adapted for vertical alignment. The transmission rollers include a rotating shaft 5 movably connected to the inner wall of the washing tank 2 and multiple circular wheels 6 fixedly sleeved on the outside of the rotating shaft 5. The multiple circular wheels 6 are arranged axially along the rotating shaft 5. The circular wheels 6 of different transmission rollers in the same roller group form a transmission structure for sandwiching the synthetic leather base 10. The gaps between the rotating shafts 5 constitute the cleaning gap. The upper and lower nozzles are respectively located above and below the roller transmission assembly.

[0024] like Figures 6-7 As shown, the outer cover 4 includes a cover body and a second transmission module disposed on the cover body. The second transmission module includes side roller groups 14 symmetrically disposed above and on both sides of the outer cover 4, and a reeling shaft 15 and a reeling shaft 16 both disposed above the outer cover 4. When the washing machine is in a synchronous cleaning mode for multiple synthetic leather bases 10, the synthetic leather bases 10 are sequentially connected by transmission from the reeling shaft 15, the side roller group 14 on one side, the roller transmission assembly, the side roller group 14 on the other side, and the reeling shaft 16.

[0025] The end of the mounting plate 7 is fixedly connected to the inner wall of the water washing tank 2, and the driving shaft 8 is movably mounted on the first bearing seat provided between the mounting plate 7 and the inner wall of the water washing tank 2. A plurality of bevel gears 9 are axially sleeved on the driving shaft 8 in sequence, and the bevel gears 9 mesh with the gears provided at the end of the rotating shaft 5. The rotating shaft 5 is movably mounted on the two mounting plates 7.

[0026] The water spray system includes a water tank 17, a centrifugal pump 18, a pipe 19, a control switch 20, and a water spray assembly. The water tank 17 is located at the back of the frame 1, the centrifugal pump 18 and the control switch 20 are located at the bottom of the frame 1, and the water spray assembly comprises an upper nozzle and a lower nozzle. The pipe 19 connects the various components of the water spray system. The upper nozzle and the lower nozzle are each composed of a water pipe 11 and a plurality of water spray heads 12 axially arranged on the pipe body of the water pipe 11. The water pipe 11 of the upper nozzle passes through an open slot 13 provided in the outer cover 4, and the water pipe 11 of the lower nozzle is installed on two mounting plates 7. The water spray head 12 of the upper nozzle faces downward, and the water spray head 12 of the lower nozzle faces upward. The water spray heads 12 are both oriented toward the roller transmission assembly for spraying and cleaning the synthetic leather base 10 therein. The back of the frame 1 is provided with a return trough 21 connected to the water washing trough 2. The bottom of the water washing trough 2 is a sloped structure with a lower end near the return trough 21. The water tank 17 is provided at the bottom of the return trough 21. The upper portion of the water tank 17 is provided with an upper opening connected to the return trough 21. The upper opening is detachably provided with a cylindrical filter 22. The user can directly pour water from the upper end of the return trough 21 into the water tank 17. The sewage sprayed by the water spray assembly will flow back into the return trough 21 due to the sloped structure. After being filtered by the cylindrical filter 22, the residue will be in the cylindrical filter 22, and the purified water will enter the pipe 19 to achieve water recycling.

[0027] A water washing method using the water washing machine is as follows: S1: First determine the washing requirements of the synthetic leather base 10. If multiple washings are required, select S2; if multiple washings are not required, select S3; S2: The synthetic leather base 10 is passed through the conveying port 3 and the roller conveying assembly in sequence through each washing unit according to requirements, and the synthetic leather base 10 is distributedly cleaned through each washing unit; S3: The multiple synthetic leather bases 10 correspond to the water washing units one by one, and the synthetic leather bases 10 enter the corresponding water washing units through the second transmission module and the roller transmission assembly for cleaning.

[0028] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary or possible to enumerate all the embodiments. The obvious changes or variations extended from the spirit of the present application still belong to the protection scope of the present application.

Claims

1. A washing machine for cleaning PU wet synthetic leather base, characterized by: The invention comprises a plurality of sequentially connected water washing units, wherein the water washing units comprise a frame (1), a water spray system and a first transmission module, the frames (1) of adjacent water washing units are assembled or fixedly connected to each other, a water washing tank (2) for accommodating the first transmission module is provided on the upper portion of the frame (1), a transmission port (3) is provided between adjacent frames (1), and the water spray system comprises an upper nozzle and a lower nozzle corresponding to each other; The first transmission module includes a roller transmission component and an outer cover (4) covering the roller transmission component, the roller transmission component transmits the synthetic leather base (10), the roller transmission components of adjacent washing units are interconnected through a transmission port (3), the synthetic leather base (10) is provided with a cleaning gap for water spraying and cleaning by a water spraying system relative to the roller transmission component, the upper nozzle and the lower nozzle are respectively provided above and below the roller transmission component, the outer cover (4) includes a cover body and a second transmission module provided on the cover body; when the washing machine is in a multiple cleaning mode, the synthetic leather base (10) passes through each washing unit in turn through the transmission port (3) and the roller transmission component, and the synthetic leather base (10) is distributedly cleaned by each washing unit; when the washing machine is in a multiple synthetic leather base (10) synchronous cleaning mode, multiple synthetic leather bases (10) correspond to the washing units one by one, and the synthetic leather base (10) enters the corresponding washing unit through the second transmission module and the roller transmission component for cleaning.

2. The water washing machine for cleaning PU wet synthetic leather base according to claim 1, characterized in that: The roller transmission assembly is composed of a plurality of roller groups arranged horizontally in sequence, and the roller group is composed of two transmission rollers adapted to each other in an upper and lower manner. The transmission roller includes a rotating shaft (5) movably connected to the inner wall of the washing tank (2) and a plurality of circular wheels (6) fixedly sleeved on the outside of the rotating shaft (5). The plurality of circular wheels (6) are arranged along the axial direction of the rotating shaft (5). The circular wheels (6) of different transmission rollers in the same roller group constitute a transmission structure of a sandwich transmission synthetic leather bass (10), and the gap between each rotating shaft (5) is the cleaning gap.

3. The water washing machine for cleaning PU wet synthetic leather base according to claim 1, characterized in that: The first transmission device comprises two mounting vertical plates (7) fixedly arranged in the water washing tank (2), a driving motor fixedly mounted on the mounting vertical plates (7) and a driving shaft (8) connected to the driving motor, the ends of the mounting vertical plates (7) are fixedly connected to the inner wall of the water washing tank (2), the driving shaft (8) is movably mounted on a first bearing seat provided between the mounting vertical plates (7) and the inner wall of the water washing tank (2), a plurality of bevel gears (9) are axially sleeved on the driving shaft (8) in sequence, the bevel gears (9) meshingly drive gears (10) provided at the ends of the rotating shaft (5), and the rotating shaft (5) is movably mounted on the two mounting vertical plates (7).

4. The water washing machine for cleaning PU wet synthetic leather base according to claim 3, characterized in that: The upper nozzle and the lower nozzle are both composed of a water pipe (11) and a plurality of water spray heads (12) axially arranged on the pipe body of the water pipe (11); the water pipe (11) of the upper nozzle passes through an opening groove (13) provided on the outer cover (4); the water pipe (11) of the lower nozzle is installed on two mounting vertical plates (7); the water spray head (12) of the upper nozzle faces downward, and the water spray head (12) of the lower nozzle faces upward; the water spray heads (12) are all directed toward the roller transmission assembly for spraying and cleaning the synthetic leather bass (10) therein.

5. The water washing machine for cleaning PU wet synthetic leather base according to claim 1, characterized in that: The second transmission module comprises a side roller group (14) symmetrically arranged above both sides of the outer cover (4) and a reeling shaft (15) and a reeling shaft (16) both arranged above the outer cover (4). When the washing machine is in a synchronous cleaning mode for multiple synthetic leather basses (10), the synthetic leather basses (10) are sequentially connected by transmission from the reeling shaft (15), the side roller group (14) on one side, the roller transmission assembly, the side roller group (14) on the other side, and the reeling shaft (16).

6. The water washing machine for cleaning PU wet synthetic leather base according to claim 1, characterized in that: The water spray system comprises a water tank (17), a centrifugal pump (18), a pipe (19), a control switch (20) and a water spray assembly. The water tank (17) is arranged on the back of the frame (1), the centrifugal pump (18) and the control switch (20) are arranged on the bottom of the frame (1), the water spray assembly is the upper nozzle and the lower nozzle, and the pipe (19) connects the various components of the water spray system.

7. The water washing machine for cleaning PU wet synthetic leather base according to claim 6, characterized in that: The back of the frame (1) is provided with a return water trough (21) connected to the water washing trough (2); the bottom of the water washing trough (2) is a lower inclined surface structure close to one end of the return water trough (21); the bottom of the return water trough (21) is provided with the water tank (17); the upper part of the water tank (17) is provided with an upper opening connected to the return water trough (21); the upper opening is detachably provided with a cylindrical filter screen (22).

8. The water washing machine for cleaning PU wet synthetic leather base according to claim 1, characterized in that: An extrusion roller (23) for squeezing water stains from the synthetic leather base (10) is provided between the roller transmission assembly and the transmission port (3).

9. A water washing method using the water washing machine according to any one of claims 1 to 8, which is as follows: S1: First determine the washing requirements of the synthetic leather base (10). If multiple washings are required, select S2; if multiple washings are not required, select S3; S2: according to the requirements, the synthetic leather base (10) is passed through the transmission port (3) and the roller transmission assembly in sequence through each washing unit, and the synthetic leather base (10) is distributedly cleaned through each washing unit; S3: A plurality of synthetic leather bases (10) correspond to the water washing units one by one, and the synthetic leather bases (10) enter the corresponding water washing units through the second transmission module and the roller transmission assembly for cleaning.

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