Adjustable embossing die set for PU synthetic leather embossing device

Abstract

The utility model discloses a kind of adjustable embossing module of PU synthetic leather embossing device, including supporting base, its upper movable support embossing roller and both sides auxiliary roller;Embossing roller both ends are connected with vertical clamping rod through central shaft, vertical clamping rod one side is movably connected with threaded rod, threaded rod is connected with arc elastic limit plate through elastic pull rope. Support plate body is equipped between vertical support rod, and both sides have the outer inclined plate of support auxiliary roller;Threaded rod and vertical clamping rod are positioned through damping element, and the space is formed between embossing roller and elastic limit plate. Elastic pull rope can be retracted by rotating threaded rod, change the arc of elastic limit plate to adjust the space, realize embossing pressure adjustment. The device can be flexibly adapted to different thickness synthetic leather, solve the inconvenience of embossing pressure adjustment and conveying deviation problem, improve embossing precision and applicability.

Description

Technical Field

[0001] This utility model provides an adjustable embossing module, and particularly relates to an adjustable embossing module for a PU synthetic leather embossing device. Background Technology

[0002] In the field of PU synthetic leather production, embossing equipment is a key device used to emboss the surface of synthetic leather to give it specific textures and feel, playing an important role in improving the appearance and performance of synthetic leather. Existing PU synthetic leather embossing equipment typically includes a support structure and embossing rollers for embossing. The embossing rollers are mounted on the support structure, and auxiliary rollers are also set on both sides to assist in the transport of synthetic leather.

[0003] However, these devices have obvious shortcomings. The embossing pressure of the embossing roller is difficult to adjust flexibly. For PU synthetic leather of different thicknesses, it is often impossible to accurately control the embossing effect, which can easily result in embossing that is too deep or too shallow. Moreover, during the conveying process of synthetic leather, there is a lack of effective limit adjustment structure, which can cause the synthetic leather to deviate, affecting the accuracy and consistency of embossing. At the same time, it is difficult to conveniently adapt to different specifications of synthetic leather for embossing operations according to actual production needs. Utility Model Content

[0004] In order to solve the above problems, this application provides an adjustable embossing module for a PU synthetic leather embossing device, which solves the problems of inconvenient embossing pressure adjustment, poor adaptability to synthetic leather of different thicknesses, and easy deviation during conveying, thereby improving the embossing accuracy and applicability.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable embossing module for a PU synthetic leather embossing device, including a support base, on which an embossing roller and auxiliary rollers located on both sides are movably supported; The two ends of the embossing roller are movably connected to vertical clamping rods integrated on the support base via their own central shafts. The vertical clamping rods are movably connected to threaded rods on the side opposite to the embossing rollers. The threaded rods are fixedly connected to elastic pull ropes placed on both sides of themselves via their own threads. The two ends of the elastic pull ropes are fixedly connected to arc-shaped elastic limiting plates.

[0006] Preferably, the vertical support rods are provided with a support plate corresponding to the elastic limiting plate, and the two sides of the support plate are provided with an outwardly inclined plate that is fixedly connected to the movable support auxiliary roller on the support base.

[0007] Preferably, the threaded rod and the vertical clamping rod are positioned and adjusted by a damping element, and a passage space is formed between the embossing roller and the elastic limiting plate; the threaded rod retracts and extends the elastic rope to change the position of both ends of the elastic limiting plate, change the curvature of the elastic limiting plate, adjust the size of the passage space, and adjust the embossing pressure.

[0008] Preferably, the support base is made of metal and has an overall U-shaped frame structure.

[0009] Preferably, the embossing roller is cylindrical in shape, and the surface of the roller can be set with different styles of embossing protrusions according to the embossing requirements. The roller is made of an alloy material with moderate hardness.

[0010] Preferably, the elastic limiting plate is made of elastic metal sheet with an arc shape that fits the embossing roller.

[0011] Preferably, the outer inclined plate has an inclined plate structure, is made of metal, and has an inclination angle range of 100°-150°, which makes the installation position of the auxiliary roller more conducive to the conveying of PU synthetic leather.

[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art: Existing PU synthetic leather embossing devices suffer from problems such as inconvenient embossing pressure adjustment, poor adaptability to synthetic leathers of different thicknesses, and easy deviation of the synthetic leather during embossing. This PU synthetic leather embossing device addresses these issues with its adjustable embossing module. A U-shaped frame structure with a metal support base provides stable support. Embossing is achieved using a cylindrical embossing roller, made of alloy material and with adjustable embossing protrusions on its surface, movably connected at both ends to a vertical clamping rod via a central shaft. Embossing is achieved with the roller's movable supports on both sides, resting on a metal outer surface at an inclination angle of 100°–150°. An auxiliary roller on the inclined plate assists in conveying the synthetic leather and prevents deviation. Meanwhile, a vertical clamping rod on the side opposite to the embossing roller is movably connected to a threaded rod via a damping component. The threaded rod is connected to elastic pull ropes on both sides via threads. The two ends of the elastic pull ropes are connected to elastic limiting plates made of elastic metal sheets that are curved and fit the embossing roller. Rotating the threaded rod to raise and lower the elastic pull ropes changes the position and curvature of the two ends of the elastic limiting plates, thereby adjusting the size of the space between the embossing roller and the elastic limiting plates. This allows for flexible adjustment of the embossing pressure, thus adapting to PU synthetic leather of different thicknesses and solving the shortcomings of existing technologies.

[0013] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of an adjustable embossing module for a PU synthetic leather embossing device according to the present invention; Figure 2 This is an exploded view of the adjustable embossing module of a PU synthetic leather embossing device according to this utility model; Figure 3This is a schematic diagram of the connection of the threaded rod portion of the adjustable embossing module of a PU synthetic leather embossing device according to this utility model; Figure 4 This is a side view of the embossing roller and elastic limiting plate of the adjustable embossing module of a PU synthetic leather embossing device according to the present invention.

[0015] As shown in the figure: 1. Support base; 2. Embossing roller; 3. Auxiliary roller; 4. Central shaft; 5. Vertical clamping rod; 6. Threaded rod; 7. Elastic pull rope; 8. Elastic limiting plate; 9. Support plate; 10. Outward tilting plate; 11. Damping component; 12. Passing space. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] like Figure 1-4As shown, an adjustable embossing module for a PU synthetic leather embossing device includes a support base 1 made of metal and having an overall U-shaped frame structure. An embossing roller 2 and auxiliary rollers 3 located on both sides of the embossing roller 2 are movably supported on the support base 1. The embossing roller 2 is cylindrical, and its surface can be decorated with different embossing protrusions according to the embossing requirements. The roller body is made of an alloy material with moderate hardness. Both ends of the embossing roller 2 are movably connected to vertical clamping rods 5 integrally connected to the support base 1 via their central shafts 4. The side of the vertical clamping rods 5 facing away from the embossing roller 2 is movably supported. A threaded rod 6 is dynamically connected, and the threaded rod 6 and the vertical clamping rod 5 are positioned and adjusted by a damping element 11. The threaded rod 6 is fixedly connected to elastic pull ropes 7 on both sides of itself by its own threads. The two ends of the elastic pull ropes 7 are fixedly connected to elastic limiting plates 8 made of elastic metal sheets with an arc shape that fits the embossing roller 2. A passage space 12 is formed between the embossing roller 2 and the elastic limiting plates 8. The threaded rod 6 moves the elastic pull ropes 7 to change the position of the two ends of the elastic limiting plates 8, change the curvature of the elastic limiting plates 8, adjust the size of the passage space 12, and adjust the embossing pressure. A support plate body 9 corresponding to the elastic limiting plate 8 is provided between the vertical support rods 5. On both sides of the support plate 9, there are outwardly inclined plates 10 that are fixedly connected to the support base 1 to move the auxiliary support roller 3. The outwardly inclined plates 10 have an inclined plate structure, are made of metal, and have an inclination angle range of 100°-150°, which makes the installation position of the auxiliary roller 3 more conducive to the conveying of PU synthetic leather.

[0020] In this embodiment, the vertical clamping rod 5 is integrated with the support base 1, providing a movable support point for the central axis 4 of the embossing roller 2 and a mounting carrier for the threaded rod 6; the damping element 11 connects the threaded rod 6 and the vertical clamping rod 5, stabilizing the position of the threaded rod 6 after adjustment and preventing it from shifting on its own; the elastic pull rope 7 connects the threaded rod 6 and the elastic limiting plate 8 at both ends, becoming a force transmission medium, while the elastic limiting plate 8 is correspondingly set with the embossing roller 2 to form a passage space 12 for synthetic leather to pass through; the support plate 9 is located between the vertical support rods 5 and corresponds to the elastic limiting plate 8, while the outward tilting plate 10 is fixed to the support base 1 and supports the auxiliary roller 3.

[0021] From the perspective of implementation, the coordinated operation of each component ensures stable operation and convenient adjustment of the device: the U-shaped metal structure of the support base 1 provides a solid foundation; the alloy material and interchangeable texture design of the embossing roller 2 adapt to various embossing needs; the auxiliary roller 3, with the specific tilt angle of the outer inclined plate 10, can accurately guide the synthetic leather conveying direction and reduce deviation. The innovation is reflected in the adjustment mechanism: by rotating the threaded rod 6, the elastic limit plate 8 is driven by the elastic pull rope 7 to change its curvature, which can flexibly adjust the passage space 12 to adapt to synthetic leather of different thicknesses, solving the problem of inconvenient pressure adjustment in traditional devices; the positioning function of the damping component 11 ensures stable pressure after adjustment, and the elastic metal sheet material of the elastic limit plate 8 combines flexibility and durability during adjustment. These structural combinations significantly improve the practicality and adaptability of the device.

[0022] In actual use, this device requires a drive motor to rotate the embossing roller 2 and the auxiliary roller 3. The motor can be connected to the central shaft 4 via a coupling. The alloy material used for the embossing roller 2 can be 45# steel, and the elastic metal sheet used for the elastic limiting plate 8 can be 65Mn spring steel. It also needs to be equipped with a PU synthetic leather unwinding device and a rewinding device. The unwinding device transports the synthetic leather to the auxiliary roller 3, and after being guided by it, it enters the space 12 formed by the embossing roller 2 and the elastic limiting plate 8 to complete the embossing. Then, the rewinding device rewinds the embossed synthetic leather. At the same time, the drive motor can be connected with a PLC control system to realize the automated control of the embossing speed and the adjustment of the threaded rod 6. The connection between the threaded rod 6 and the elastic pull rope 7 can be fixed with an existing buckle structure. The elastic pull rope 7 can be made of polyurethane elastic rope.

[0023] During installation, the support base 1 can be fixed to the pre-set installation groove on the workshop floor with expansion bolts to ensure no shaking during operation; a deep groove ball bearing is installed at the connection between the central shaft 4 of the embossing roller 2 and the vertical clamping rod 5 to reduce rotational friction. The outer ring of the bearing is interference-fitted with the vertical clamping rod 5, and the inner ring is clearance-fitted with the central shaft 4 and positioned by the shaft shoulder; the connection between the auxiliary roller 3 and the outer inclined plate 10 adopts a detachable bearing seat. The bearing seat is fixed in the pre-set waist-shaped hole of the outer inclined plate 10 with bolts, which facilitates fine adjustment of the spacing of the auxiliary roller 3 according to the width of the synthetic leather. During use, the thickness of the PU synthetic leather to be embossed is first detected by a thickness sensor. The sensor signal is transmitted to the digital display controller. The operator uses a wrench to turn the hexagonal adjusting head at the end of the threaded rod 6 according to the displayed value. The elastic limit plate 8 is adjusted through the elastic pull rope 7 to the appropriate size through the space 12. The damping component 11 uses a disc spring assembly to provide continuous pre-tightening force after the threaded rod 6 is adjusted to prevent loosening. Before starting, the cleanliness of the surface texture of the embossing roller 2 needs to be checked. Impurities can be removed by wiping with a special brush and alcohol. During operation, the edge position of the synthetic leather is monitored by an infrared beam sensor installed under the support plate 9. If a deviation occurs, a buzzer alarm is triggered. The operator can correct the conveying path by finely adjusting the position of the bearing seat of the auxiliary roller 3 on the outer tilt plate 10. When the device is stopped for maintenance, the connecting bolts between the vertical clamping rod 5 and the support base 1 can be loosened to lift the embossing roller assembly as a whole for bearing lubrication. Lithium-based grease is injected through the grease nipple. If the elastic pull rope 7 is aged, it can be removed and replaced by the locking nut on the threaded rod 6 to ensure the continuous and stable operation of each component.

[0024] Specifically, during use, the winding device (powered externally by a drive motor) is installed on the discharge end side of the device. The winding roller of the winding device is parallel to and height-matched with the auxiliary roller 3 of the device. First, one end of the PU synthetic leather embossed by the embossing roller 2 is pulled onto the winding roller of the winding device and fixed by the clamping mechanism on the winding roller. Then, the drive motor of the winding device and the embossing drive assembly of the device are started simultaneously. The drive motor of the winding device drives the winding roller to rotate at a uniform speed. With the traction force of the winding roller and the guiding conveying of the auxiliary rollers 3 on both sides of the device, the PU synthetic leather passes through the passage space 12 formed by the embossing roller 2 and the elastic limiting plate 8 at a stable speed. The embossed synthetic leather is wound onto the winding roller at a uniform speed. During the process, the motor speed of the winding device can be adjusted to match the rotation speed of the embossing roller 2 of the device to avoid stretching or stacking of the synthetic leather.

[0025] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. An adjustable embossing module for a PU synthetic leather embossing device, comprising a support base (1), characterized in that: The support base (1) is movably supported above the embossing roller (2) and auxiliary rollers (3) located on both sides of the embossing roller (2). The two ends of the embossing roller (2) are movably connected to a vertical clamping rod (5) integrated on the support base (1) via its own central shaft (4). The vertical clamping rod (5) is movably connected to a threaded rod (6) on the side away from the embossing roller (2). The threaded rod (6) is fixedly connected to an elastic pull rope (7) placed on both sides of itself by its own thread. The two ends of the elastic pull rope (7) are fixedly connected to an arc-shaped elastic limiting plate (8).

2. The adjustable embossing module of the PU synthetic leather embossing device according to claim 1, characterized in that: Between the vertical clamping rods (5), there is a support plate (9) corresponding to the elastic limiting plate (8), and on both sides there are outwardly inclined plates (10) that are fixedly connected to the movable support auxiliary roller (3) on the support base (1).

3. The adjustable embossing module of the PU synthetic leather embossing device according to claim 1, characterized in that: The threaded rod (6) and the vertical clamping rod (5) are positioned and adjusted by a damping element (11). A passage space (12) is formed between the embossing roller (2) and the elastic limiting plate (8). The threaded rod (6) pulls the elastic rope (7) to change the position of both ends of the elastic limiting plate (8), change the curvature of the elastic limiting plate (8), adjust the size of the passage space (12), and adjust the embossing pressure.

4. The adjustable embossing module of the PU synthetic leather embossing device according to claim 1, characterized in that: The support base (1) is made of metal and has an overall U-shaped frame structure.

5. The adjustable embossing module of the PU synthetic leather embossing device according to claim 1, characterized in that: The embossing roller (2) is cylindrical in shape. Different styles of embossing protrusions can be set on the surface of the roller according to the embossing requirements. The roller is made of alloy material with moderate hardness.

6. The adjustable embossing module of the PU synthetic leather embossing device according to claim 1, characterized in that: The elastic limiting plate (8) is made of elastic metal sheet with an arc shape that fits the embossing roller (2).

7. The adjustable embossing module of the PU synthetic leather embossing device according to claim 2, characterized in that: The outer inclined plate (10) has an inclined plate structure, is made of metal, and has an inclination angle range of 100° to 150°, which makes the installation position of the auxiliary roller (3) more conducive to the conveying of PU synthetic leather.

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