A rapid bonding device for PU leather production

Abstract

This utility model relates to the field of PU leather bonding technology and discloses a rapid bonding device for PU leather production. The device includes a machine body with sealed doors installed on both the front and rear sides of the front surface. A handle is fixedly connected to the front surface of each sealed door. A feed chute is provided on the right surface of the machine body, and a linkage coating assembly is installed on the inner wall of the machine body. This rapid bonding device for PU leather production, through the linkage coating assembly, allows the operator to control the rotation of the drive shaft, which in turn drives the coating roller to rotate synchronously via a chain. During rotation, the coating roller evenly applies adhesive to the surface of the PU leather, enhancing adhesion. Simultaneously, the synchronous rotation of the chain also increases the rotational speed of the coating roller when the PU leather is conveyed at a faster speed, allowing the device to adapt to the material transport speed. Furthermore, a scraper can spread the adhesive evenly, enabling the device to be used even when different materials require different adhesive thicknesses.

Description

Technical Field

[0001] This utility model relates to the field of PU leather bonding technology, specifically a rapid bonding device for PU leather production. Background Technology

[0002] PU leather production equipment is the core set of equipment for manufacturing PU leather. It covers modules such as base fabric pretreatment, PU slurry coating, curing and molding, interlayer bonding, and post-processing. Base fabric pretreatment removes impurities and levels the fabric; the coating system precisely controls the slurry; the curing unit (heating or UV) accelerates slurry setting; the bonding module achieves material adhesion; and post-processing optimizes the feel and appearance. The equipment is mostly automated and adaptable to the production of different specifications of PU leather, ensuring the efficiency of mass production and product consistency.

[0003] However, in actual use, most existing rapid bonding devices for PU leather apply adhesive to the PU leather surface through multiple glue nozzles. Since the glue is distributed in dots or intermittent strips, this method of application only allows point contact with the PU leather and cannot spread the glue evenly. The small contact area between the glue and the PU leather surface results in poor adhesion. In view of this, we propose a rapid bonding device for PU leather production. Utility Model Content

[0004] The purpose of this invention is to provide a rapid bonding device for PU leather production, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid bonding device for PU leather production, comprising a machine body, with sealing doors installed on both the front and rear sides of the front surface of the machine body, a handle fixedly connected to the front surface of the sealing door, a feeding groove opened on the right surface of the machine body, and a linkage coating assembly provided on the inner wall of the machine body; The linkage coating assembly includes an upper drive shaft, the rear surface of which is mounted on the upper side of the inner surface of the machine body. A lower drive shaft is mounted on the lower side of the inner surface of the machine body. A sprocket is fixedly connected to the front surface of the lower drive shaft. A storage hopper is fixedly connected to the middle of the inner surface of the machine body. A coating roller is rotatably connected to the lower inner wall of the storage hopper. A sprocket is fixedly connected to the front surface of the coating roller. The sprocket and sprocket are driven by a synchronous chain. A support plate is fixedly connected to the lower left side of the storage hopper. Limit rods are fixedly connected to both the front and rear sides of the lower surface of the support plate. A threaded rod is rotatably connected to the middle of the lower surface of the support plate. A scraper is threadedly connected to the lower part of the outer wall of the threaded rod. The inner wall of the scraper is slidably connected to the outer wall of the limit rod. A feed pipe is mounted on the rear surface of the storage hopper. An extrusion roller is mounted on the left side of the inner surface of the machine body. Motors are mounted on the rear surfaces of both the upper and lower drive shafts. The front surfaces of the motors are mounted on the rear surface of the machine body.

[0006] Preferably, a collection box is fixedly connected to the lower inner wall of the machine body, the collection box corresponds to the working area of ​​the scraper, and a knob is fixedly connected to the outer wall of the threaded rod.

[0007] Preferably, the scraper is L-shaped, and the side of the L-shaped protrusion of the scraper facing the paint roller is sloped.

[0008] Preferably, the storage hopper is configured as a funnel shape.

[0009] Preferably, the inner surface of the machine body is provided with a correction component on both the upper and lower sides. The correction component includes a support shaft, and the rear surface of the support shaft is fixedly connected to the inner surface of the machine body.

[0010] Preferably, a sliding sleeve is slidably connected to the outer wall of the support shaft, a pressure alarm is installed on the upper side of the outer wall of the support shaft, and support plates are fixedly connected to both the front and rear sides of the support shaft.

[0011] Preferably, rubber pads are fixedly connected to both the front and rear sides of the support shaft, the front surface of the rubber pads is fixedly connected to the rear surface of the support plate, and the rubber pads are in the shape of a frustum tapering from the support plate towards the sliding sleeve.

[0012] Compared with the prior art, this utility model provides a rapid bonding device for PU leather production, which has the following beneficial effects:

[0013] 1. This rapid bonding device for PU leather production, through a linkage coating assembly, allows the operator to control the rotation of the drive shaft, which in turn drives the coating roller to rotate synchronously via a chain. During rotation, the coating roller evenly applies adhesive to the surface of the PU leather, enhancing adhesion. Simultaneously, the synchronous rotation of the chain also increases the rotation speed of the coating roller when the PU leather is conveyed at a faster speed, allowing the device to adapt to the material transport speed. Furthermore, the adhesive can be spread evenly by a scraper, ensuring the device can still be used when different materials require different adhesive thicknesses.

[0014] 2. This rapid bonding device for PU leather production uses a correction component to prevent the PU leather from deflecting during the process of conveying it to the extrusion rollers. Due to vibrations generated during machine operation or connection issues between different devices, the PU leather may deflect. This deflection causes the sliding sleeve to move along with it. When the sliding sleeve moves slightly, it contacts the rubber pad, which pushes the sleeve back using its elasticity. However, when a large-area tilt occurs, the sliding sleeve presses against the pressure alarm, triggering an alarm that alerts the operator to intervene. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall sealing door structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the linkage coating component of this utility model;

[0018] Figure 4 This is a schematic diagram of the threaded rod and limiting rod of this utility model.

[0019] Figure 5 This is a schematic diagram of the correction component of this utility model.

[0020] In the diagram: 1. Machine body; 2. Sealed door; 3. Handle; 4. Feed chute; 5. Linkage paint assembly; 6. Correction assembly; 7. Collection box; 51. Upper drive shaft; 52. Lower drive shaft; 53. Sprocket 1; 54. Synchronous chain; 55. Sprocket 2; 56. Paint roller; 57. Storage hopper; 58. Support plate; 59. Scraper plate; 510. Limiting rod; 511. Threaded rod; 512. Knob; 513. Extrusion roller; 514. Motor; 515. Feed pipe; 61. Support shaft; 62. Sliding sleeve; 63. Pressure alarm; 64. Support plate; 65. Rubber pad. Detailed Implementation

[0021] like Figures 1-5As shown, this utility model provides a technical solution: a rapid bonding device for PU leather production, including a body 1 for supporting the overall device, sealing doors 2 for sealing the internal space of the body 1 are installed on both the front and rear sides of the front surface of the body 1, and a handle 3 for the operator to pull the sealing door 2 is fixedly connected to the front surface of the sealing door 2. A feeding groove 4 for PU leather to enter the body 1 is opened on the right surface of the body 1, and a linkage coating component 5 is provided on the inner wall of the body 1 to make the first sprocket 53 and the second sprocket 55 rotate synchronously and enable the device to uniformly and adaptively apply glue. The linkage coating assembly 5 includes an upper drive shaft 51 for driving the upper PU leather movement. The rear surface of the upper drive shaft 51 is mounted on the upper side of the inner surface of the machine body 1. A lower drive shaft 52 for driving the lower PU leather into the machine body 1 is mounted on the lower side of the inner surface of the machine body 1. A sprocket 53 for driving the synchronous chain 54 is fixedly connected to the front surface of the lower drive shaft 52. A storage hopper 57 for storing adhesive is fixedly connected to the middle of the inner surface of the machine body 1. A coating roller 56 for evenly applying adhesive is rotatably connected to the lower side of the inner wall of the storage hopper 57. A sprocket 55 for driving the coating roller 56 to rotate is fixedly connected to the front surface of the coating roller 56. The sprocket 55 and the sprocket 53 are driven by a synchronous chain 54 for synchronizing the rotation of the sprocket 55 with the rotation of the sprocket 53. A limit rod 510 and a threaded rod 5 are fixedly connected to the lower left side surface of the storage hopper 57. The support plate 58 of the machine body 1 has a limiting rod 510 fixedly connected to both the front and rear sides of its lower surface to limit the displacement of the scraping plate 59. A threaded rod 511 is rotatably connected to the middle of the lower surface of the support plate 58 to drive the scraping plate 59 to move up and down. The lower part of the outer wall of the threaded rod 511 is threadedly connected to the scraping plate 59 to flatten the adhesive on the PU leather surface. The inner wall of the scraping plate 59 is slidably connected to the outer wall of the limiting rod 510. A feed pipe 515 for conveying adhesive into the storage hopper 57 is installed on the rear surface of the storage hopper 57. A compression roller 513 for pressing and bonding the upper and lower layers of PU leather is installed on the left side of the inner surface of the machine body 1. A motor 514 for driving the upper and lower drive shafts 51 and 52 to rotate is installed on the rear surface of the upper drive shaft 51 and the lower drive shaft 52. The front surface of the motor 514 is installed on the rear surface of the machine body 1.

[0022] In one embodiment of this utility model, a collection box 7 for collecting excess adhesive is fixedly connected to the lower inner wall of the machine body 1, and a knob 512 for the operator to easily rotate the threaded rod 511 is fixedly connected to the outer wall of the threaded rod 511. The scraping plate 59 is L-shaped so that the protruding slope of the scraping plate 59 can always be in contact with the adhesive on the PU leather surface during operation. The side of the L-shaped protrusion of the scraping plate 59 facing the coating roller 56 is set as a slope to enhance the scraping effect of the scraping plate 59. The storage hopper 57 is funnel-shaped so that the adhesive can flow better to the coating roller 56.

[0023] In this embodiment of the invention, the inner surface of the body 1 is provided with a correction component 6 on both the upper and lower sides for correcting the movement trajectory when the PU leather deflects. The correction component 6 includes a support shaft 61 for supporting the movement of the sliding sleeve 62. The rear surface of the support shaft 61 is fixedly connected to the inner surface of the body 1. The outer wall of the support shaft 61 is slidably connected to a sliding sleeve 62 for sliding on the outer wall of the support shaft 61 and for rotating when the PU leather moves. A pressure alarm 63 is installed on the upper side of the outer wall of the support shaft 61 for emitting a buzzer when contacted by the sliding sleeve 62. The front and rear sides of the support shaft 61 are fixedly connected to the support shaft 61. A support plate 64 is fixedly connected to support the rubber pad 65 and prevent excessive deformation of the rubber pad 65. Rubber pads 65 are fixedly connected to both the front and rear sides of the support shaft 61 to achieve micro-correction through their own elasticity. The front surface of the rubber pad 65 is fixedly connected to the rear surface of the support plate 64. The rubber pad 65 is in the shape of a frustum tapering from the support plate 64 toward the sliding sleeve 62, so that the sliding sleeve 62 can be pushed back better when there is a slight deflection. When there is an excessive deflection tendency, the rubber pad 65 on the larger side will squeeze the sliding sleeve 62, providing greater damping and forming a relatively hard contact to block displacement.

[0024] In this invention, during use, the upper and lower motors 514 are first turned on. The motors 514 drive the upper drive shaft 51 and the lower drive shaft 52 to rotate, thereby driving the corresponding PU leather to move. When the lower drive shaft 52 rotates, it drives the first sprocket 53 to rotate, which in turn drives the synchronous chain 54 to move. The movement of the synchronous chain 54 synchronously drives the second sprocket 55 to rotate, so that the transmission speed of the synchronous chain 54 and the second sprocket 55 are matched. When the second sprocket 55 rotates, it drives the coating roller 56 to rotate, thereby evenly spreading the adhesive in the storage hopper 57 onto the surface of the PU leather, achieving stable coating of the PU leather. During this process, if there are differences between the PU leather material and the production process, the adhesive thickness can be adjusted by rotating knob 512. Rotating knob 512 drives threaded rod 511 to rotate, which in turn drives scraper 59 to move up and down along limit rod 510, changing the height of the slope of scraper 59, thereby adjusting the adhesive thickness on the PU leather surface. Simultaneously, if the PU leather deflects during transport: in the case of a small deflection, the PU leather will drive sliding sleeve 62 to one side. During the movement of sliding sleeve 62, it will be blocked by rubber pad 65. When the deflection force is removed or canceled, the elasticity of the rubber pad 65 will push the sliding sleeve 62 back, without affecting normal operation. If the deflection is large, the sliding sleeve 62 will squeeze the pressure alarm 63 to more than half. At this time, the pressure alarm 63 will sound due to the squeezing. The rubber pad 65 at the position of the sliding sleeve 62 has the same diameter as the sliding sleeve 62. The rubber pad 65 can maximize the damping to prevent the sliding sleeve 62 from continuing to move. At the same time, the support plate 64 will support the rubber pad 65 to prevent the rubber pad 65 from deforming outward under force, waiting for the operator to intervene for maintenance.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A rapid bonding device for PU leather production, comprising a body (1), characterized in that: The front surface of the machine body (1) is equipped with sealing doors (2) on both the front and rear sides. The front surface of the sealing door (2) is fixedly connected with a handle (3). The right surface of the machine body (1) is provided with a feeding groove (4). The inner wall of the machine body (1) is provided with a linkage coating assembly (5). The linkage coating assembly (5) includes an upper drive shaft (51), the rear surface of which is mounted on the upper side of the inner surface of the machine body (1). A lower drive shaft (52) is mounted on the lower side of the inner surface of the machine body (1). A sprocket (53) is fixedly connected to the front surface of the lower drive shaft (52). A storage hopper (57) is fixedly connected to the middle of the inner surface of the machine body (1). A coating roller (56) is rotatably connected to the lower side of the inner wall of the storage hopper (57). A sprocket (55) is fixedly connected to the front surface of the coating roller (56). The sprocket (55) and the sprocket (53) are driven by a synchronous chain (54). A support is fixedly connected to the lower left side of the storage hopper (57). The support plate (58) has a limit rod (510) fixedly connected to both the front and rear sides of its lower surface. A threaded rod (511) is rotatably connected to the middle of the lower surface of the support plate (58). A scraper (59) is threadedly connected to the lower part of the outer wall of the threaded rod (511). The inner wall of the scraper (59) is slidably connected to the outer wall of the limit rod (510). A feed pipe (515) is installed on the rear surface of the storage hopper (57). An extrusion roller (513) is installed on the left side of the inner surface of the machine body (1). A motor (514) is installed on the rear surface of both the upper drive shaft (51) and the lower drive shaft (52). The front surface of the motor (514) is installed on the rear surface of the machine body (1).

2. The rapid bonding device for PU leather production according to claim 1, characterized in that: A collection box (7) is fixedly connected to the lower inner wall of the body (1). The collection box (7) corresponds to the working area of ​​the scraper (59). A knob (512) is fixedly connected to the outer wall of the threaded rod (511).

3. The rapid bonding device for PU leather production according to claim 1, characterized in that: The scraper (59) is L-shaped, and the side of the L-shaped protrusion of the scraper (59) facing the paint roller (56) is sloped.

4. The rapid bonding device for PU leather production according to claim 1, characterized in that: The storage hopper (57) is configured as a funnel.

5. A rapid bonding device for PU leather production according to claim 1, characterized in that: The inner surface of the body (1) is provided with a correction component (6) on both the upper and lower sides. The correction component (6) includes a support shaft (61), and the rear surface of the support shaft (61) is fixedly connected to the inner surface of the body (1).

6. A rapid bonding device for PU leather production according to claim 5, characterized in that: The outer wall of the support shaft (61) is slidably connected to a sliding sleeve (62), a pressure alarm (63) is installed on the upper side of the outer wall of the support shaft (61), and support plates (64) are fixedly connected to both the front and rear sides of the support shaft (61).

7. A rapid bonding device for PU leather production according to claim 6, characterized in that: Rubber pads (65) are fixedly connected to both the front and rear sides of the support shaft (61). The front surface of the rubber pad (65) is fixedly connected to the rear surface of the support plate (64). The rubber pad (65) is a frustoconical shape that gradually narrows from the support plate (64) toward the sliding sleeve (62).

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