Environment-friendly preparation and pressing mechanism for bio-based synthetic leather fabric for vehicles

Abstract

The utility model belongs to synthetic leather fabric processing equipment improvement technical field, especially involve a kind of environmental protection type preparation press bonding mechanism of bio-based synthetic leather fabric for vehicle, including the upper press roller and lower press roller being spaced apart, and the bio-based synthetic leather layer coated with glue on inner surface and elastic matrix layer are face-to-face stacked together between upper press roller and lower press roller and transmission, and are extruded by upper press roller and lower press roller upper and lower cooperation. Along the upper press roller or lower press roller axial location bio-based synthetic leather layer and elastic matrix layer two sides, on the upper press roller or lower press roller respectively coaxial cooperation set with sponge ring that can axially rotate, the side of each sponge ring away from bio-based synthetic leather layer and elastic matrix layer is respectively provided with limit stop, and bio-based synthetic leather layer and elastic matrix layer are made to sponge ring by limit stop and inboard abut along upper side.

Description

Technical Field

[0001] This utility model belongs to the technical field of synthetic leather fabric processing equipment improvement, and specifically relates to an environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric. Background Technology

[0002] Synthetic leather fabric is a type of composite fabric that resembles genuine leather in appearance and feel. Depending on the material of the synthetic leather layers, it can be classified into polyolefin, polyvinyl chloride, polyamide, polyurethane, and other synthetic leather fabrics. Automotive bio-based synthetic leather fabric is mainly used on the surface of car seats. It is made by first processing bio-based polymer materials into a bio-based synthetic leather layer through mixing, extrusion, calendering, and other methods, and then bonding and pressing it with an elastic matrix layer, just like traditional synthetic leather layers.

[0003] When bonding and pressing the synthetic leather layer and the elastic substrate layer, glue needs to be applied between the synthetic leather layer and the elastic substrate layer first. Then, it is transferred between two cooperating pressing rollers to achieve compaction. During the compaction process, the glue between the synthetic leather layer and the elastic substrate layer will inevitably be squeezed out and adhere to the surface of the pressing rollers. It will also be thrown onto the fabric product and the surrounding environment as the pressing rollers rotate, causing pollution. Moreover, because the glue forms a firm adhesion after drying, it is not easy to remove. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric, including two pressure rollers spaced apart, namely an upper pressure roller and a lower pressure roller. The upper pressure roller and the lower pressure roller are arranged parallel to each other in the axial direction. The bio-based synthetic leather layer with adhesive coated on the inner surface and the elastic matrix layer are stacked together and laid flat in a direction perpendicular to the axial direction of the upper pressure roller or the axial direction of the lower pressure roller, and are horizontally transported and squeezed by the upper and lower pressure rollers.

[0005] Along the axial direction of the upper or lower pressure roller, on both sides of the bio-based synthetic leather layer and the elastic matrix layer, a sponge ring is coaxially fitted and rotatably mounted on the upper or lower pressure roller. The top of the sponge ring fitted on the lower pressure roller is vertically upward above the gap between the elastic matrix layer and the bio-based synthetic leather layer, and is always spaced apart from the lowest point of the upper pressure roller surface; the bottom of the sponge ring fitted on the upper pressure roller is vertically downward below the gap between the elastic matrix layer and the bio-based synthetic leather layer, and is always spaced apart from the highest point of the lower pressure roller surface.

[0006] Each sponge ring is provided with a limiting plate on the side away from the bio-based synthetic leather layer and the elastic matrix layer. The limiting plate is always spaced apart from the roller surface of the upper pressure roller and the roller surface of the lower pressure roller. The limiting plate makes the sponge ring horizontally abut against the side edge of the bio-based synthetic leather layer and the elastic matrix layer.

[0007] Preferably, each sponge ring has a partition layer fixedly bonded to its inner circumferential surface. The sponge ring can be axially rotated and coaxially fitted onto the upper or lower pressure roller through the partition layer, and the partition layer achieves isolation between the sponge ring and the roller surface of the upper or lower pressure roller.

[0008] Preferably, both the upper and lower pressure rollers are axially rotatable on the fixed frame, and each limiting plate extends a limiting rod horizontally away from the sponge ring. The limiting rods are parallel to the axial direction of the upper and lower pressure rollers in the length direction, and the limiting rods are slidably fitted onto the fixed frame along their own length direction.

[0009] Preferably, the fixing frame is equipped with a fastening mechanism for each limiting rod. The fastening mechanism includes a threaded hole with a horizontal axis on the fixing frame. The axis of the threaded hole is perpendicular to the axis of the through hole on the fixing frame through which the limiting rod passes and is at the same horizontal height. One end of the threaded hole is connected to the through hole, and the other end is connected to the outside. The limiting rod is pressed into the through hole by a bolt that is screwed into the threaded hole coaxially, thereby locking the limiting rod on the fixing frame.

[0010] Preferably, the limiting plate corresponding to the sponge ring coaxially fitted on the upper pressure roller is an arc-shaped structure coaxial with the upper pressure roller; the limiting plate corresponding to the sponge ring coaxially fitted on the lower pressure roller is an arc-shaped structure coaxial with the lower pressure roller.

[0011] Preferably, the pressing mechanism includes a fixed frame, a drive cylinder is fixedly installed on the top of the fixed frame, a telescopic rod extends vertically downward from the drive cylinder, and a connecting plate with a horizontal surface is fixedly installed at the bottom of the telescopic rod. The length direction of the connecting plate is parallel to the axial direction of the upper pressure roller and the axial direction of the lower pressure roller. The two ends of the connecting plate extend vertically downward from the connecting plate to the mounting plates with surfaces perpendicular to the length direction of the connecting plate. The upper pressure roller is axially rotatably mounted between the two mounting plates through its two ends. An upper drive motor is fixedly installed on the plate surface of one of the mounting plates away from the upper pressure roller. The end of the upper pressure roller that is axially close to the upper drive motor passes through the mounting plate and is connected to the output end of the upper drive motor for transmission. Thus, the upper pressure roller is driven to rotate axially on the two mounting plates by the upper drive motor.

[0012] Furthermore, the drive cylinder sequentially drives the upper pressure roller and the upper drive motor to slide back and forth on the fixed frame through the telescopic rod, connecting plate, and mounting plate.

[0013] Preferably, the lower pressure roller is axially rotatably fixedly mounted on the fixed frame, and a lower drive motor is fixedly mounted on one end of the lower pressure roller along the axial direction on the fixed frame. The end of the lower pressure roller that is axially close to the lower drive motor passes through the fixed frame and is connected to the output end of the lower drive motor for transmission, thereby driving the lower pressure roller to rotate axially on the fixed frame through the lower drive motor.

[0014] As a preferred embodiment, the mounting bracket is provided with slide rails for each mounting plate, allowing the mounting plates to slide back and forth only. The slide rails consist of two grooves with their openings facing each other and both being vertical in length. The two vertical plates of the mounting plate are fitted into the grooves one by one.

[0015] As a preferred embodiment, the fixing frame is provided with an auxiliary fastening mechanism for each mounting plate. The auxiliary fastening mechanism includes several threaded rods extending vertically upward from the top edge of the mounting plate. The top plate of the fixing frame is a horizontal plate, and a connecting hole is opened on the top plate corresponding to the threaded rods. The threaded rods are vertically connected to the upper and lower plates of the top plate. The threaded rods are vertically fitted into the corresponding connecting holes. Two fastening nuts are threaded on the same threaded rod at the same time. One fastening nut is threaded onto the threaded rod and screwed vertically upward to press against the lower plate of the top plate. The other fastening nut is threaded onto the threaded rod and screwed downward to press against the upper plate of the top plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the environmentally friendly preparation and pressing mechanism for the bio-based synthetic leather fabric for automotive applications according to this utility model.

[0017] Figure 2 For the appendix Figure 1 Based on this, a schematic diagram of the adjustment mechanism for the position of the sponge ring on the lower pressure roller is shown after a horizontal section is made in the vertical direction;

[0018] Figure 3 A cross-sectional view of the environmentally friendly pressing mechanism for preparing bio-based synthetic leather fabric for automobiles according to this utility model (attached). Figure 1 (A-A section, right view, and eye view).

[0019] Figure 4 A schematic diagram of the transmission route (front sectional view, head view) of the environmentally friendly manufacturing pressing mechanism for automotive bio-based synthetic leather fabric of this invention, which transmits the elastic matrix layer and the bio-based synthetic leather layer through the elastic matrix layer.

[0020] Figure 5 For the appendix Figure 4 The diagram shows an enlarged view of the elastic matrix layer and the bio-based synthetic leather layer as they pass between the upper and lower pressure rollers.

[0021] Wherein, 0—fixed frame, 01—threaded hole, 02—slide groove, 03—top plate, 1—upper pressure roller, 2—lower pressure roller, 3—bio-based synthetic leather layer, 4—elastic matrix layer, 5—sponge ring, 51—partition layer, 6—limiting plate, 7—limiting rod, 8—bolt, 9—drive cylinder, 91—telescopic rod, 10—connecting plate, 11—mounting plate, 111—threaded rod, 12—upper drive motor, 13—lower drive motor, 14—fastening nut, 15—transfer roller, 16—winding roller, 17—glue nozzle. Detailed Implementation

[0022] It should be noted that the terms "front," "back," "left," "right," "horizontal," "vertical," "top," "bottom," "horizontal height," "higher than," and "lower than" used in the description of this application refer to the appendix. Figure 1 , 2 In 4 and 5, the directions "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] As attached Figure 1 As shown, the environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric of this utility model first includes a fixed frame 0. An upper pressure roller 1 and a lower pressure roller 2, both horizontal in the front-to-back direction, are axially rotatable and mounted on the fixed frame 0. The upper pressure roller 1 and the lower pressure roller 2 are axially parallel to each other and spaced apart (with a spacing of 9-10 mm), as shown in the attached figure. Figure 4 As shown: A bio-based synthetic leather layer 3 (2mm thick) with adhesive sprayed on its upper surface and an elastic matrix layer 4 (a 10mm thick sponge layer) (elastic matrix layer 4 on top, bio-based synthetic leather layer 3 on the bottom) are stacked face-to-face between upper pressure roller 1 and lower pressure roller 2 and conveyed horizontally from left to right, subjected to room temperature compression by the upper pressure roller 1 and lower pressure roller 2 (after the cold pressing is completed, the pressed elastic matrix layer 4 and bio-based synthetic leather layer 3 continue to be conveyed horizontally to the right through an oven (see attached image)). Figure 4 (Not shown in the drawing) thereby drying and curing the glue between the two to achieve a firm bond, and then transferring it to the take-up roller 16 for take-up. Between the upper pressure roller 1 and the lower pressure roller 2, the bio-based synthetic leather layer 3 and the elastic matrix layer 4 are aligned vertically and horizontally on the front and rear edges.

[0024] As attached Figure 3As shown: Along the axial direction of the lower pressure roller 2, on both sides of the bio-based synthetic leather layer 3 and the elastic matrix layer 4, sponge rings 5 ​​are axially rotatable and coaxially fitted on the lower pressure roller 2. The cross-section of each sponge ring 5 along its circumferential length is rectangular. Between each sponge ring 5 and the lower pressure roller 2, there is a partition layer 51 (dense plastic film) that is axially rotatable and coaxially fitted on the lower pressure roller 2. The partition layer 51 is fixedly bonded to the sponge ring 5 along its radial circumferential direction. The sponge ring 5 can axially rotatable and coaxially fits the lower pressure roller 2 through the partition layer 51. The radial thickness of the sponge ring 5 is about 6.5mm, so that the top of the sponge ring 5 is vertically upward and effectively higher than the gap between the elastic matrix layer 4 and the bio-based synthetic leather layer 3, while ensuring that the top of the sponge ring 5 is always spaced from the lowest point of the upper pressure roller 1 (as shown in the attached figure). Figure 5 (as shown)

[0025] As attached Figure 2 , 3 Each sponge ring 5 is provided with a limiting plate 6 on the side away from the bio-based synthetic leather layer 3 and the elastic matrix layer 4. The limiting plate 6 is an arc-shaped structure that is coaxial with the lower pressure roller 2. The limiting plate 6 is always spaced apart from the roller surface of the upper pressure roller 1 and the roller surface of the lower pressure roller 2. Each limiting plate 6 has a limiting rod 7 extending from its center along its length away from the sponge ring 5. The limiting rods 7 are horizontally arranged in the front-to-back direction along their length. Each limiting rod 7 is slidably fitted onto the fixing frame 0 along its length. The fixing frame 0 is equipped with a fastening mechanism for each limiting rod 7. The fastening mechanism includes a horizontally oriented threaded hole 01 on the fixing frame 0. The axis of the threaded hole 01 is perpendicular to and at the same horizontal level as the axis of the through hole through which the limiting rod 7 passes. The right end of the threaded hole 01 is connected to the through hole, and the left end is connected to the outside. A bolt 8, horizontally and coaxially screwed into the threaded hole 01, tightens the limiting rod 7 into its corresponding through hole, thereby locking the limiting rod 7 onto the fixing frame 0 (as shown in the attached diagram). Figure 2 In summary: By sliding the limiting rod 7 horizontally in the front and rear directions on the fixed frame 0, the front and rear positions of the limiting plate 6 on it are adjusted, so that the limiting plate 6 is horizontally inward and its entire surface is parallel to the vertical outer wall of the corresponding sponge ring 5. After locking, it plays a limiting role for the sponge ring 5, so that the sponge ring 5 is horizontally inward and slightly elastically contacts the side edge of the bio-based synthetic leather layer 3 and the elastic matrix layer 4 located between the upper pressure roller 1 and the lower pressure roller 2.

[0026] As attached Figure 3The top of the fixed frame 0 is a horizontal top plate 03. A drive cylinder 9 is fixedly installed on the top plate 03. A telescopic rod 91 extends vertically downward from the drive cylinder 9. The telescopic rod 91 can slide back and forth vertically downward along its own length direction to cooperate with the top plate 03. A connecting plate 10 with a horizontal length direction and a horizontal plate surface is fixedly installed at the bottom of the telescopic rod 91. The two ends of the connecting plate 10 extend vertically downward from the connecting plate 10, and the mounting plates 11 with a vertical plate surface in the front-back direction. The mounting plates 11 extend horizontally outward from the connecting plate 10 in the left and right directions. The upper pressure roller 1 is axially rotatably supported and installed between the two mounting plates 11 through its two ends. One of the mounting plates 11 is away from the upper pressure roller 1. An upper drive motor 12 is fixedly installed on the plate surface on one side of the pressure roller 1. The end of the upper pressure roller 1 that is axially close to the upper drive motor 12 passes through the mounting plate 11 and is connected to the output end of the upper drive motor 12. Thus, the upper drive motor 12 drives the upper pressure roller 1 to rotate axially on the two mounting plates 11. The fixed frame 0 is provided with slide rails for the mounting plates 11 to slide back and forth only. The slide rails are composed of two grooves 02 with the slots facing each other left and right and both vertical in length direction. The two vertical plates of the mounting plate 11 are embedded in the grooves 02 one by one and can slide back and forth in the grooves 02 along the length direction of the grooves 02.

[0027] As attached Figure 2 The lower pressure roller 2 is axially rotatably fixedly supported on the fixed frame 0. A lower drive motor 13 is fixedly installed on the fixed frame 0 at one end of the lower pressure roller 0 in the axial direction. The end of the lower pressure roller 0 that is close to the lower drive motor 13 in the axial direction passes through the fixed frame 0 and is connected to the output end of the lower drive motor 13 for transmission. Thus, the lower pressure roller 2 is driven to rotate axially on the fixed frame 0 by the lower drive motor 13.

[0028] The drive cylinder 9 drives the two mounting plates 11 to slide up and down synchronously on their respective slide rails via the telescopic rod 91 and the connecting plate 10, so as to adjust the horizontal height position of the upper pressure roller 1 and the upper drive motor 12 on the fixed frame 0, thereby fine-tuning the distance between the upper pressure roller 1 and the lower pressure roller 2.

[0029] As attached Figure 1 , 3The mounting bracket 0 is equipped with an auxiliary fastening mechanism corresponding to each mounting plate 11. The auxiliary fastening mechanism includes a threaded rod 111 extending vertically upward from the horizontal top edge of the mounting plate 11. Each mounting plate 11 has a threaded rod 111 extending from the left and right sides of the connecting plate 10. The top plate 03 has a connecting hole that is vertical in axis and connects the upper and lower surfaces of the top plate 03 in axis one-to-one with the threaded rod 111. The threaded rod 111 is vertically inserted into the corresponding connecting hole. Two fastening nuts 14 are threadedly screwed on the same threaded rod 111. One fastening nut 14 is screwed on the threaded rod 111 to vertically press against the lower surface of the top plate 03, and the other fastening nut 14 is screwed on the threaded rod 111 to vertically press against the upper surface of the top plate 03.

[0030] In the technical solution of this utility model, by setting a sponge ring 5 with excellent liquid absorption capacity, and the sponge ring 5 directly contacting and abutting against the side edge of the bio-based synthetic leather layer 3 and the elastic matrix layer 4 located between the upper pressure roller 1 and the lower pressure roller 2, when the upper pressure roller 1 and the lower pressure roller 2 cooperate to press the bio-based synthetic leather layer 3 and the elastic matrix layer 4, the glue squeezed out from between the bio-based synthetic leather layer 3 and the elastic matrix layer 4 is immediately absorbed by the sponge ring 5, effectively preventing the glue that is squeezed out from adhering to the roller surface or being thrown onto the fabric product and the surrounding environment by the rotating roller, which has environmental protection effect;

[0031] Considering that liquids such as glue can permeate and spread within the sponge, this solution involves bonding a barrier layer 51 (dense plastic film) to the inner circumferential surface of the sponge ring 5. The barrier layer 51 isolates the sponge ring 5 from the roller surface of the lower pressure roller 2, thereby preventing the glue absorbed by the sponge ring 5 from contacting and adhering to the roller surface of the lower pressure roller 2 through the inner circumferential surface of the sponge ring 5.

[0032] Meanwhile, although the sponge ring 5 is not fixed on the lower pressure roller 2, there is mutual friction between the sponge ring 5 and the roller surface of the lower pressure roller 2, the front and rear edges of the bio-based synthetic leather layer 3 and the elastic matrix layer 4. Therefore, as the lower pressure roller 2 rotates axially and the bio-based synthetic leather layer 3 and the elastic matrix layer 4 are continuously transported, the sponge ring 5 will also be driven to rotate axially on the lower pressure roller 2 from time to time through friction. This will cause the position of the glue overflow point on the sponge ring 5 to continuously change, so that there are more dry positions on the sponge ring 5 that can absorb and contain the overflow glue in time, which is beneficial to the absorption efficiency of the sponge ring 5 for the overflow glue.

[0033] By setting the limiting plate 6 and the limiting rod 7, it can not only ensure that the gap between the sponge ring 5 and the bio-based synthetic leather layer 3 and the elastic matrix layer 4 between the upper pressure roller 1 and the lower pressure roller 2 is always in contact and abutting together; but also adjust the front and rear position of the sponge ring 5 to adapt to the bio-based synthetic leather layer 3 and the elastic matrix layer 4 with different front and rear widths, making the operation flexible and convenient.

[0034] Finally, the sponge ring 5 is inexpensive. After a period of use, once the glue adsorbed on the sponge ring 5 has accumulated to a certain extent, the pressure roller can be removed and the sponge ring 5 replaced.

[0035] In addition, by setting an auxiliary fastening mechanism on the fixed frame 0, the fastening nut 14 located on the upper part of the threaded rod 111 pushes the top plate 03 downward to assist the drive cylinder 9 and the telescopic rod 91 in pulling the upper pressure roller 1 vertically upward to maintain the distance between the upper pressure roller 1 and the lower pressure roller 2; by using the fastening nut 14 located on the lower part of the threaded rod 111 to push the top plate 03 upward, the upper pressure roller 1 can be prevented from moving upward during operation, thereby ensuring the accuracy and stability of the distance between the upper pressure roller 1 and the lower pressure roller 2.

Claims

1. An environmentally friendly pressing mechanism for preparing bio-based synthetic leather fabric for automotive applications, characterized in that: It includes two pressure rollers spaced apart, namely an upper pressure roller (1) and a lower pressure roller (2). The upper pressure roller (1) and the lower pressure roller (2) are arranged parallel to each other in the axial direction. Between the upper pressure roller (1) and the lower pressure roller (2) are a bio-based synthetic leather layer (3) and an elastic matrix layer (4) with glue on their inner surfaces superimposed together. Along the axial direction of the upper pressure roller (1) or the lower pressure roller (2), on both sides of the bio-based synthetic leather layer (3) and the elastic matrix layer (4), a sponge ring (5) is coaxially fitted on the upper pressure roller (1) or the lower pressure roller (2) respectively, which can rotate axially. Each of the sponge rings (5) is provided with a limiting plate (6) on the side away from the bio-based synthetic leather layer (3) and the elastic matrix layer (4). The limiting plate (6) is always spaced apart from the roller surface of the upper pressure roller (1) and the roller surface of the lower pressure roller (2). The limiting plate (6) causes the sponge ring (5) to abut horizontally inward against the side edge of the bio-based synthetic leather layer (3) and the elastic matrix layer (4).

2. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 1, characterized in that: Each of the sponge rings (5) has a partition layer (51) fixedly bonded to its inner circumferential surface. The sponge ring (5) is axially rotatable and coaxially fitted onto the upper pressure roller (1) or the lower pressure roller (2) through the partition layer (51), and is isolated from the roller surface of the upper pressure roller (1) or the roller surface of the lower pressure roller (2) through the partition layer (51).

3. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 1, characterized in that: The top of the sponge ring (5) coaxially fitted on the lower pressure roller (2) is always vertically upward and is always spaced apart from the lowest point of the roller surface of the upper pressure roller (1); the bottom of the sponge ring (5) coaxially fitted on the upper pressure roller (1) is always vertically downward and is always spaced apart from the highest point of the roller surface of the lower pressure roller (2).

4. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 1, characterized in that: The upper pressure roller (1) and the lower pressure roller (2) are both axially rotatably mounted on the fixed frame (0). Each of the limiting plates (6) extends a limiting rod (7) horizontally in the direction away from the sponge ring (5). The limiting rod (7) is parallel to the axial direction of the upper pressure roller (1) and the axial direction of the lower pressure roller (2) in the length direction. The limiting rod (7) is slidably fitted onto the fixed frame (0) along its own length direction.

5. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 4, characterized in that: The fixing frame (0) is provided with fastening mechanisms for each of the limiting rods (7). The fastening mechanism includes a threaded hole (01) with a horizontal axis on the fixing frame (0). The axis of the threaded hole (01) is perpendicular to the axis of the through hole on the fixing frame (0) through which the limiting rod (7) passes and is at the same horizontal height. One end of the threaded hole (01) is connected to the through hole, and the other end is connected to the outside. The limiting rod (7) is pressed into the through hole by a bolt (8) that is coaxially screwed into the threaded hole (01), thereby locking the limiting rod (7) on the fixing frame (0).

6. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 1, characterized in that: The limiting plate (6) corresponding to the sponge ring (5) coaxially fitted on the upper pressure roller (1) is an arc-shaped structure coaxially with the upper pressure roller (1); the limiting plate (6) corresponding to the sponge ring (5) coaxially fitted on the lower pressure roller (2) is an arc-shaped structure coaxially with the lower pressure roller (2).

7. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 1, characterized in that: The pressing mechanism includes a fixed frame (0), a drive cylinder (9) is fixedly installed on the top of the fixed frame (0), a telescopic rod (91) extends vertically downward from the drive cylinder (9), and a connecting plate (10) with a horizontal plate surface is fixedly installed at the bottom end of the telescopic rod (91). The length direction of the connecting plate (10) is parallel to the axial direction of the upper pressure roller (1) and the axial direction of the lower pressure roller (2). The two ends of the length direction of the connecting plate (10) extend vertically downward from mounting plates (11) with plate surfaces perpendicular to the length direction of the connecting plate. The upper pressure roller (1) is axially rotatably mounted between two mounting plates (11) through its two ends. An upper drive motor (12) is fixedly mounted on the side of one of the mounting plates (11) away from the upper pressure roller (1). The end of the upper pressure roller (1) that is axially close to the upper drive motor (12) passes through the mounting plate (11) and is connected to the output end of the upper drive motor (12) for transmission. Thus, the upper pressure roller (1) is driven to rotate axially on the two mounting plates (11) by the upper drive motor (12). Furthermore, the drive cylinder (9) drives the upper pressure roller (1) and the upper drive motor (12) to slide back and forth on the fixed frame (0) in sequence through the telescopic rod (91), the connecting plate (10), and the mounting plate (11).

8. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 7, characterized in that: The lower pressure roller (2) is axially rotatably fixed on the fixed frame (0). A lower drive motor (13) is fixedly installed on the fixed frame (0) at one end of the lower pressure roller (2) in the axial direction. The end of the lower pressure roller (2) close to the lower drive motor (13) in the axial direction passes through the fixed frame (0) and is connected to the output end of the lower drive motor (13) for transmission. Thus, the lower pressure roller (2) is driven to rotate axially on the fixed frame (0) by the lower drive motor (13).

9. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 7, characterized in that: The fixing frame (0) is provided with a slide rail for each mounting plate (11) to slide back and forth. The slide rail is composed of two grooves (02) with their openings facing each other and both vertical in length direction. The two vertical plates of the mounting plate (11) are fitted into the grooves (02) in a corresponding manner.

10. The environmentally friendly preparation and pressing mechanism for automotive bio-based synthetic leather fabric as described in claim 7, characterized in that: The fixing frame (0) is provided with auxiliary fastening mechanisms corresponding to each of the mounting plates (11). The auxiliary fastening mechanism includes several threaded rods (111) extending vertically upward from the top edge of the mounting plate (11). On the top plate (03) of the fixing frame (0), which is horizontal, there are connecting holes that are vertically axial and axially connected to the upper and lower plates of the top plate (03) in correspondence with the threaded rods (111). The threaded rods (111) are vertically inserted into the corresponding connecting holes. Two fastening nuts (14) are threadedly screwed onto the same threaded rod (111). One of the fastening nuts (14) is screwed onto the threaded rod (111) to vertically press against the lower plate of the top plate (03), and the other fastening nut (14) is screwed onto the threaded rod (111) to vertically press against the upper plate of the top plate (03).

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