PU leather hot embossing device

Abstract

The utility model relates to hot embossing device technical field, concretely relates to a PU leather hot embossing device, including mounting bracket, the outside of mounting bracket is provided with cleaning structure, and the cleaning structure includes two groups setting in the outside of mounting bracket's mounting arm, and the outside wall fixed connection of mounting arm has cleaning motor and the output fixed connection of cleaning motor has cleaning wheel, and the inside wall rotation is connected in the mounting arm of cleaning wheel, and the surface fixed connection of cleaning wheel has a plurality of groups nylon brush silk, and the center of mounting arm is fixedly connected with connecting block, and the inside fixed connection of connecting block has dust absorption cover. The utility model cooperates through mounting bracket and cleaning structure, and the cleaning structure passes through the high -speed rotation cleaning wheel of direct drive of cleaning motor and its surface nylon brush silk, realizes the continuous, efficient cleaning of PU leather surface dust and impurity, makes the structure greatly simplified, runs more stable and reliable, and can suck up the impurity that lifts simultaneously in the meanwhile, effectively avoids secondary pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of hot embossing devices, specifically to a PU leather hot embossing device. Background Technology

[0002] Embossing machines are mainly used for embossing, bubble pressing, wrinkling, and label pressing on various fabrics. They can also press labels on non-woven fabrics, coatings, artificial leather, paper, and aluminum plates, as well as simulate leather patterns and various shades of patterns. PU leather also requires a special PU leather hot embossing device for embossing during the processing.

[0003] A search revealed that CN216738926U discloses a PU leather hot embossing device for convenient PU leather replacement. This device includes a support arm, a cylinder, a connecting plate, a heating device body, a connecting pipe, a mounting plate, a molding die, and auxiliary devices. The auxiliary device, located at the lower outer end of the support arm, houses a sliding mechanism. The inner side of the sliding mechanism connects to a cleaning mechanism via a sliding block. Driven by the sliding mechanism, the cleaning mechanism moves back and forth, working in conjunction with a cleaning brush and scraper at the bottom of the cleaning mechanism to clean impurities and dust from the PU leather surface. This eliminates the need for manual cleaning, significantly improving work efficiency. Furthermore, an adjustment mechanism is connected to the left side of the sliding mechanism via a connecting plate. This adjustment mechanism is manually driven, driving an internal pulley system to adjust the angle of the adjustment mechanism. The pulley system is limited by a ratchet assembly, ensuring good stability after adjustment. This device is suitable for use at different feeding angles and has strong applicability.

[0004] When the above technical solution is used, the mechanical structure of the "scraper + cleaning brush" reciprocating linear motion structure is complex and the maintenance cost is high, which affects the practicality of the structure.

[0005] Therefore, it is necessary to invent a PU leather heat embossing device to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a PU leather heat embossing device, which solves the problem that the existing technology has a complex mechanical structure and high maintenance cost due to the reciprocating linear motion structure of "scraper + cleaning brush", thus affecting the practicality of the structure.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a PU leather heat embossing device, including a mounting frame, a cleaning structure on the outer side of the mounting frame, the cleaning structure including two sets of mounting arms on the outer side of the mounting frame, a cleaning motor fixedly connected to the outer wall of the mounting arm, and a cleaning wheel fixedly connected to the output end of the cleaning motor, the cleaning wheel being rotatably connected to the inner wall of the mounting arm, several sets of nylon bristles fixedly connected to the surface of the cleaning wheel, a connecting block fixedly connected to the center of the mounting arm, a dust suction hood fixedly connected to the inner side of the connecting block, and two sets of suction hoses fixedly connected to the top of the dust suction hood, thus providing a simpler and more efficient cleaning mechanism.

[0008] Preferably, a connecting platform is fixedly connected to the inner side wall of the mounting frame, and two sets of dust collection boxes are fixedly connected to the top of the connecting platform to collect dust.

[0009] Preferably, the outer wall of the mounting bracket is provided with a sliding groove, and a sliding rod and an electric screw are respectively provided inside the sliding grooves at both ends, so as to cooperate with subsequent parts.

[0010] Preferably, a lifting block is fixedly connected to the bottom end of the mounting arm, and the lifting blocks at both ends of the mounting frame are respectively threadedly connected to an electric screw and slidably connected to a slide rod. The height of the cleaning structure is adjusted by the cooperation between the electric screw and the lifting block.

[0011] Preferably, a cleaning cover is installed on the back side of the dust collection box, and a filter screen is threadedly connected to the left side of the dust collection box. A negative pressure air pump is fixedly connected to the end of the filter screen away from the dust collection box. The dust inside the vacuum hose is concentrated inside the dust collection box by the cooperation of the filter screen and the negative pressure air pump.

[0012] Preferably, a hot press cylinder is fixedly connected to the top of the connecting platform, and a hot press plate is fixedly connected to the output end of the hot press cylinder. Activating the hot press cylinder drives the hot press plate to rise and fall.

[0013] Preferably, a high-temperature resistant silicone pad is provided directly below the hot press plate, and a glass fiber woven mesh is fixedly connected inside the high-temperature resistant silicone pad to improve the hot pressing effect.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows: Through the cooperation of the mounting frame and the cleaning structure, the cleaning structure, driven directly by a cleaning motor, utilizes a high-speed rotating cleaning wheel and its surface nylon bristles to achieve continuous and efficient cleaning of dust and impurities on the PU leather surface. This greatly simplifies the structure and makes operation more stable and reliable. Simultaneously, the vacuuming system, which works in sync with the cleaning wheel, consists of a vacuum hood, vacuum hose, dust collection box, and negative pressure air pump. It can instantly suck up impurities raised during cleaning, effectively preventing secondary pollution and providing a clean working surface for the subsequent hot embossing process. This is achieved by utilizing the built-in glass installed beneath the hot press plate. The high-temperature resistant silicone pad with fiber woven mesh solves the contradiction between uniform pressure and durability: the soft silicone pad can perfectly compensate for the slight unevenness that may exist on the hot press plate, PU leather, or even the work surface, ensuring uniform pressure distribution, thereby obtaining a high-quality embossing effect with clear patterns and no color difference; while the embedded fiberglass woven mesh enhances its tensile and tear resistance, significantly extending its service life. The height of the cleaning structure can be easily adjusted by the electric screw to accommodate leather materials of different thicknesses, and the cleaning cover and removable filter screen equipped with the dust collection box make maintenance and cleaning work easier. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model; Figure 2 This is a schematic diagram of the overall first-view structure of this utility model; Figure 3 This is a schematic diagram of the overall first-view structure of this utility model; Figure 4 This is a schematic diagram of the ash collection box structure of this utility model; Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0017] Explanation of reference numerals in the attached figures: 1. Mounting bracket; 2. Cleaning structure; 201. Mounting arm; 202. Cleaning wheel; 203. Nylon brush bristles; 204. Cleaning motor; 205. Connecting block; 206. Dust hood; 207. Dust suction hose; 3. Connecting platform; 4. Hot press cylinder; 5. Dust collection box; 6. Negative pressure air pump; 7. Cleaning cover; 8. Hot press plate; 9. High temperature resistant silicone pad; 10. Fiberglass woven mesh; 11. Filter screen; 12. Slide rod; 13. Electric screw; 14. Lifting block. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model provides, for example Figure 1-5 The illustrated PU leather heat embossing device includes a mounting frame 1. A cleaning structure 2 is provided on the outer side of the mounting frame 1. The cleaning structure 2 includes two sets of mounting arms 201 disposed on the outer side of the mounting frame 1. A cleaning motor 204 is fixedly connected to the outer wall of the mounting arm 201, and a cleaning wheel 202 is fixedly connected to the output end of the cleaning motor 204. The cleaning wheel 202 is rotatably connected to the inner wall of the mounting arm 201. Several sets of nylon bristles 203 are fixedly connected to the surface of the cleaning wheel 202. A connecting block is fixedly connected to the center of the mounting arm 201. 205. A dust hood 206 is fixedly connected to the inner side of the connecting block 205. Two sets of suction hoses 207 are fixedly connected to the top of the dust hood 206. The cleaning structure 2 provides a simpler and more efficient cleaning mechanism. A connecting platform 3 is fixedly connected to the inner side wall of the mounting frame 1. Two sets of dust collection boxes 5 are fixedly connected to the top of the connecting platform 3. Dust is collected through the dust collection boxes 5. A sliding groove is opened on the outer side wall of the mounting frame 1, and a sliding rod 12 and an electric screw 13 are respectively installed inside the sliding grooves at both ends. The sliding rod 12 and the electric screw 13 are used to cooperate with subsequent parts.

[0020] Refer to the instruction manual appendix Figure 1-5A lifting block 14 is fixedly connected to the bottom end of the mounting arm 201. The lifting blocks 14 at both ends of the mounting frame 1 are threadedly connected to the electric screw 13 and slidably connected to the slide rod 12. The height of the cleaning structure 2 is adjusted by the cooperation of the electric screw 13 and the lifting block 14. A cleaning cover 7 is installed on the back side of the dust collection box 5. A filter screen 11 is threadedly connected to the left side of the dust collection box 5. A negative pressure air pump 6 is fixedly connected to the end of the filter screen 11 away from the dust collection box 5. The dust inside the vacuum hose 207 is concentrated in the dust collection box by the cooperation of the filter screen 11 and the negative pressure air pump 6. Inside box 5, a hot-press cylinder 4 is fixedly connected to the top of the connecting platform 3. A hot-press plate 8 is fixedly connected to the output end of the hot-press cylinder 4. Activating the hot-press cylinder 4 causes the hot-press plate 8 to rise and fall. A high-temperature resistant silicone pad 9 is placed directly below the hot-press plate 8. A fiberglass woven mesh 10 is fixedly connected inside the high-temperature resistant silicone pad 9. The high-temperature resistant silicone pad 9 enhances the hot-pressing effect. Through the cooperation of the mounting frame 1 and the cleaning structure 2, the cleaning structure 2 uses a high-speed rotating cleaning wheel 202 directly driven by the cleaning motor 204 and its surface nylon bristles 203. This system enables continuous and efficient cleaning of dust and impurities on the PU leather surface, greatly simplifying the structure and making operation more stable and reliable. Simultaneously, the dust collection system, working in sync with the cleaning wheel 202, consists of a dust hood 206, a dust hose 207, a dust collection box 5, and a negative pressure air pump 6. It can instantly suck up airborne impurities during cleaning, effectively preventing secondary pollution and providing a clean working surface for subsequent hot embossing processes. The use of a high-temperature resistant silicone pad 9 with a built-in fiberglass woven mesh 10 under the hot press plate 8 solves the problem of uneven pressure application and... The paradox of durability: The soft silicone pad can perfectly compensate for the slight unevenness that may exist in the hot press plate 8, PU leather, and even the work surface, ensuring even pressure distribution and thus obtaining a high-quality embossing effect with clear patterns and no color difference; while the embedded glass fiber woven mesh 10 enhances its tensile and tear resistance, significantly extending its service life. The height of the cleaning structure 2 can be easily adjusted by the electric screw 13 to accommodate leather materials of different thicknesses. The cleaning cover 7 and the removable filter screen 11 equipped with the dust collection box 5 make maintenance and cleaning work easier.

[0021] The working principle of this practical application is as follows: Refer to the instruction manual appendix Figure 1-5Before starting the hot embossing operation, the electric screw motor 13 is started according to the thickness of the PU leather to be processed. This drives the threaded lifting block 14 to rise and fall along the guide rail 12, thereby adjusting the entire cleaning structure 2 to a suitable height so that the nylon brush 203 maintains the optimal contact pressure with the leather surface. After preparation, the unwound PU leather enters the device at a uniform speed along the conveying direction. When it reaches the cleaning station, the pre-started cleaning motor 204 drives the cleaning wheel 202 to rotate at high speed, and the nylon brush 203 on it thoroughly sweeps away the dust and attachments on the leather surface. Almost at the same time, the negative pressure air pump 6 starts working, forming a stable negative pressure field at the dust suction hood 206 opening. The brushed-off impurities are sucked into the dust collection box 5 through the dust suction hose 207 with the airflow, while the clean air is discharged through the filter screen 11. This completes the online automated cleaning of the PU leather. The thoroughly cleaned PU leather is then conveyed to the hot pressing station. At this point, the control system commands the hot press cylinder 4 to actuate, and its output end pushes the hot press plate 8 downward, pressing the high-temperature resistant silicone pad 9 located below it onto the PU leather. At the moment of pressing, the high-temperature resistant silicone pad 9 with built-in glass fiber woven mesh 10 undergoes elastic deformation. On the one hand, the soft silicone body evenly distributes the pressure from the hot press plate 8 to the entire contact surface of the PU leather, preventing local overpressure or underpressure. On the other hand, the glass fiber woven mesh 10 bears the main tensile stress, ensuring the dimensional stability and durability of the silicone pad under repeated deformation. After maintaining the preset pressure and heating temperature for a short time, the hot press cylinder 4 resets, driving the hot press plate 8 to rise, and a complete hot embossing process is completed. The PU leather with a beautiful and uniform pattern is sent out for subsequent rolling or cutting. In the whole process, the cleaning and embossing actions are continuous and efficient, and the optimized design of key components ensures the stability and reliability of long-term operation.

[0022] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A PU leather heat embossing device, comprising a mounting frame (1), characterized in that: A cleaning structure (2) is provided on the outside of the mounting frame (1). The cleaning structure (2) includes two sets of mounting arms (201) provided on the outside of the mounting frame (1). A cleaning motor (204) is fixedly connected to the outer wall of the mounting arm (201), and a cleaning wheel (202) is fixedly connected to the output end of the cleaning motor (204). The cleaning wheel (202) is rotatably connected to the inner wall of the mounting arm (201). Several sets of nylon bristles (203) are fixedly connected to the surface of the cleaning wheel (202). A connecting block (205) is fixedly connected to the center of the mounting arm (201). A dust hood (206) is fixedly connected to the inner side of the connecting block (205). Two sets of vacuum hoses (207) are fixedly connected to the top of the dust hood (206).

2. The PU leather heat embossing device according to claim 1, characterized in that: The inner wall of the mounting bracket (1) is fixedly connected to a connecting platform (3), and the top of the connecting platform (3) is fixedly connected to two sets of dust collection boxes (5).

3. The PU leather heat embossing device according to claim 1, characterized in that: The outer wall of the mounting bracket (1) is provided with a sliding groove, and the sliding rod (12) and the electric screw (13) are respectively provided inside the sliding grooves at both ends.

4. The PU leather heat embossing device according to claim 1, characterized in that: The bottom end of the mounting arm (201) is fixedly connected to a lifting block (14). The lifting blocks (14) at both ends of the mounting frame (1) are threadedly connected to the electric screw (13) and slidably connected to the slide rod (12).

5. The PU leather heat embossing device according to claim 2, characterized in that: A cleaning cover (7) is installed on the back side of the ash collection box (5), and a negative pressure air pump (6) is threadedly connected to the left side of the ash collection box (5). A filter screen (11) is fixedly connected to the end of the negative pressure air pump (6) away from the ash collection box (5).

6. The PU leather heat embossing device according to claim 2, characterized in that: A hot press cylinder (4) is fixedly connected to the top of the connecting platform (3), and a hot press plate (8) is fixedly connected to the output end of the hot press cylinder (4).

7. The PU leather heat embossing device according to claim 6, characterized in that: A high-temperature resistant silicone pad (9) is provided directly below the hot press plate (8), and a glass fiber woven mesh (10) is fixedly connected inside the high-temperature resistant silicone pad (9).

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