Gluing device for paper product manufacturing

Abstract

The utility model relates to the technical field of paper product processing, and discloses a gluing device for paper product manufacturing, which comprises a rack, a U-shaped frame is fixedly mounted on the upper surface of the rack, a coating cylinder is rotatably mounted on the inner surface of the U-shaped frame, a glue outlet hole is formed in the arc-shaped inner wall of the coating cylinder, and a material returning assembly is arranged in the coating cylinder. Through the arrangement of a material returning assembly and the mutual cooperation of a guide plate and an elastic telescopic rod, intermittent aligned glue discharging of a glue discharging hole, a butt joint hole and an inner hole is realized, so that glue discharging is more uniform, and meanwhile, a scraping plate is matched to continuously scrape the inner surface of a coating cylinder and a fixed cylinder when the coating cylinder and the fixed cylinder rotate relatively; and glue left in the glue outlet hole and between the coating barrel and the fixed barrel can be cleaned and falls into the fixed barrel, so that the utilization rate of the glue is increased, and meanwhile, the situation that the glue left on the surface of the coating barrel affects the effect of subsequent continuous gluing operation and the gluing quality is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of paper product processing, in particular to a glue coating device for paper product manufacturing. Background Technique

[0002] Glue coating refers to the process of evenly coating a glue slurry, including solvent glue slurry, latex, and aqueous glue slurry, onto the surface of an object. There are four glue coating methods: scraping, roller coating, dipping, and spraying. For paper products, glue coating is adopted to fix the structure.

[0003] According to a disclosed glue coating device for paper product manufacturing (Publication No.: CN217250185U), in the above application, through the setting of positioning grooves and positioning columns, the interval of the coating position can be flexibly adjusted according to requirements, and the glue coating is uniform, ensuring the glue coating effect. And through the setting of a return spring, when the thickness of the paper product to be glue-coated is different, it can be automatically adjusted by the roller and the return spring.

[0004] However, in the actual use process of the above equipment, since the glue coating all flows to the surface of the roller through a hose and then the roller coats the surface of the paper product, but when coating glue in this way, the glue that has flowed onto the roller in advance will still remain on the roller after one coating, and the remaining glue may solidify or denature over time, affecting the coating effect on the surface of the paper product after the subsequent glue flows out. In view of this, we have proposed a glue coating device for paper product manufacturing. Content of the Utility Model

[0005] The purpose of the utility model is to provide a glue coating device for paper product manufacturing to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A glue coating device for paper product manufacturing, including a frame, a conveying device is arranged inside the frame, a U-shaped frame is fixedly installed on the upper surface of the frame, a coating cylinder is rotatably installed on the inner surface of the U-shaped frame, glue outlet holes are opened on the arc-shaped inner wall of the coating cylinder, and a return material assembly is arranged inside the coating cylinder. The return material assembly includes:

[0007] A fixed cylinder, the fixed cylinder is fixedly installed on the inner wall of the U-shaped frame, a small motor is fixedly installed on the inner wall of the fixed cylinder, and a stirring rod is fixedly installed at the output end of the small motor;

[0008] An inner hole is provided on the inner wall of the bottom of the fixed tube, a guide plate is slidably mounted on the inner wall of the bottom of the fixed tube, an elastic telescopic rod is fixedly mounted between the end of the guide plate and the inner wall of the fixed tube, a convex rod is fixedly mounted on one end of the guide plate away from the elastic telescopic rod, a convex point is fixedly mounted on the inner wall of the end of the fixed tube, and a docking hole is provided on the inner wall of the guide plate;

[0009] A return trough is provided on the arc-shaped inner wall at the top of the fixed cylinder, and a scraper is fixedly installed on the inner wall of the return trough.

[0010] Preferably, the fixing cylinder is concentrically arranged with the coating cylinder, and the interior of the fixing cylinder is hollow, and a connecting cavity is arranged at the end of the fixing cylinder to be connected with an external glue supply device.

[0011] Preferably, the number of the glue outlet holes is arranged in several groups, and the several groups of glue outlet holes are evenly distributed in a circular array on the arc-shaped outer wall of the coating cylinder, so that the glue discharged from the glue outlet holes can be adhered and coated with the surface of the paper product on the conveying device, the number of the inner holes is arranged in several groups, and the several groups of inner holes are evenly distributed in a linear array on the bottom inner wall of the fixed cylinder, and the inner holes are arranged corresponding to the glue outlet holes.

[0012] Preferably, a circular hole matching the protruding rod is formed on the inner wall of the fixing tube, and the protruding rod is arranged inside the circular hole; an annular groove is formed on the end of the fixing tube, and the protruding point is arranged inside the annular groove.

[0013] Preferably, a toggle assembly is provided on the upper surface of the scraper, and the toggle assembly includes a drainage groove. The upper surface of the scraper is provided with a drainage groove, and the inner surface of the drainage groove is fixedly connected to one end of a torsion bar, and the other end of the torsion bar is fixedly connected to a swing plate.

[0014] Preferably, a plurality of silicone serrations are provided at the end of the swing plate to enhance the effect of the swing plate in scraping and cleaning the residual glue in the glue outlet hole.

[0015] Compared with the prior art, the utility model provides a gluing device for paper product manufacturing, which has the following beneficial effects:

[0016] 1. The gluing device for paper product manufacturing is provided with a material return assembly, and the guide plate and the elastic telescopic rod cooperate with each other to achieve intermittent alignment of the glue outlet hole, the docking hole and the inner hole, so that the glue outlet is more uniform. At the same time, the scraper is used to continuously scrape the inner surface of the coating cylinder and the fixed cylinder when the coating cylinder and the fixed cylinder rotate relative to each other, so that the residual glue in the glue outlet hole and between the coating cylinder and the fixed cylinder can be cleaned and dropped into the fixed cylinder, thereby improving the utilization rate of the glue and avoiding the residual glue on the surface of the coating cylinder affecting the effect and quality of the subsequent continuous gluing operation.

[0017] 2. In the gluing device for paper product manufacturing, the swing plate corresponding to the toggle assembly can be toggled into the glue outlet hole when the coating cylinder rotates to shovel the residual glue in the glue outlet hole. At the same time, a plurality of silicone serrations are provided at the end of the swing plate to enhance the scraping and cleaning effect of the swing plate on the residual glue in the glue outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the coating tube of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed cylinder of the utility model;

[0021] Figure 4 This is a schematic diagram of the separation of the fixed cylinder and the guide plate of the utility model;

[0022] Figure 5 It is a partially enlarged schematic diagram of the scraper of the utility model.

[0023] In the figure: 1. frame; 2. conveying device; 3. U-shaped frame; 4. coating cylinder; 5. glue outlet hole; 6. return material assembly; 61. fixing cylinder; 62. small motor; 63. stirring rod; 64. inner hole; 65. guide plate; 66. elastic telescopic rod; 67. docking hole; 68. protruding rod; 69. protruding point; 610. return material trough; 611. scraper; 7. toggle assembly; 71. drainage trough; 72. torsion bar; 73. swing plate. DETAILED DESCRIPTION

[0024] like Figures 1 - 5As shown in the figure, the present utility model provides a technical solution: a glue coating device for paper product manufacturing, which includes a frame 1. A conveying device 2 is arranged inside the frame 1. A U-shaped frame 3 is fixedly installed on the upper surface of the frame 1. A coating cylinder 4 is rotatably installed on the inner surface of the U-shaped frame 3. Glue outlet holes 5 are opened on the arc-shaped inner wall of the coating cylinder 4. A material returning assembly 6 is arranged inside the coating cylinder 4. The material returning assembly 6 includes a fixed cylinder 61, a small motor 62, a stirring rod 63, an inner hole 64, a guiding plate 65, an elastic telescopic rod 66, a convex rod 68, a docking hole 67, a convex point 69, a material returning groove 610 and a scraping plate 611.

[0025] In an embodiment of the present utility model, a fixed cylinder 61 is fixedly installed on the inner wall of the U-shaped frame 3. A small motor 62 is fixedly installed on the inner wall of the fixed cylinder 61. The output end of the small motor 62 is fixedly installed with a stirring rod 63. An inner hole 64 is opened on the bottom inner wall of the fixed cylinder 61. A guiding plate 65 is slidably installed on the bottom inner wall of the fixed cylinder 61. An elastic telescopic rod 66 is fixedly installed between the end of the guiding plate 65 and the inner wall of the fixed cylinder 61. A convex rod 68 is fixedly installed at one end of the guiding plate 65 away from the elastic telescopic rod 66. A convex point 69 is fixedly installed on the inner wall at the end of the fixed cylinder 61. A docking hole 67 is opened on the inner wall of the guiding plate 65. A material returning groove 610 is opened on the top arc-shaped inner wall of the fixed cylinder 61. A scraping plate 611 is fixedly installed on the inner wall of the material returning groove 610.

[0026] Further, the conveying device 2 includes a driving motor and a transmission roller fixedly connected to the output shaft of the driving motor. At the same time, a conveyor belt is drivingly connected to the arc-shaped outer wall of the transmission roller. When applying glue to paper products, the paper products are placed on the conveyor belt at the right end of the frame 1. At this time, the driving motor included in the conveying device 2 is started, and in cooperation with the conveyor belt, to achieve the horizontal transportation of the paper products, and then bring them below the U-shaped frame 3. In addition, the fixed cylinder 61 is concentrically arranged with the coating cylinder 4, and the inside of the fixed cylinder 61 is hollow, and a connection cavity is provided at the end of the fixed cylinder 61 to be connected to an external glue feeding device to continuously supply glue to the inside of the fixed cylinder 61. Under the action of gravity, the glue in the fixed cylinder 61 is in the bottom space of the fixed cylinder 61. In addition, the number of glue outlet holes 5 is provided in several groups, and several groups of glue outlet holes 5 are evenly distributed in a circumferential array on the arc-shaped outer wall of the coating cylinder 4, so that the glue discharged from the glue outlet holes 5 can be attached to and coated on the surface of the paper products on the conveying device 2. Specifically, a curved rod is provided on the arc-shaped outer wall of the stirring rod 63 to stir and mix the glue inside the fixed cylinder 61 when the stirring rod 63 rotates. At the same time, the number of inner holes 64 is provided in several groups, and several groups of inner holes 64 are evenly distributed in a linear array on the bottom inner wall of the fixed cylinder 61, and the inner holes 64 are correspondingly arranged with the glue outlet holes 5, so that when the coating roller 4 rotates, after the glue outlet holes 5 are aligned with the inner holes 64, the glue in the fixed cylinder 61 will be discharged outward through the inner holes 64 and the glue outlet holes 5. When the coating roller 4 rotates to the position where the glue outlet holes 5 deviate from the inner holes 64, the fixed cylinder 61 will not discharge glue outward through the inner holes 64.

[0027] In addition, a circular hole adapted to the convex rod 68 is provided on the inner wall of the fixed cylinder 61, and the convex rod 68 is arranged inside the circular hole. At the same time, an annular groove is provided at the end of the fixed cylinder 61, and the convex point 69 is arranged inside the annular groove. The number of convex points 69 is provided in several groups, and several groups of convex points 69 are correspondingly arranged with the glue outlet holes 5 one by one. At the same time, the convex points 69 and the glue outlet holes 5 are arranged in the same plane. In addition, the end of the convex rod 68 is spherical, so that when the coating cylinder 4 and the fixed cylinder 61 rotate relative to each other, the convex points 69 periodically contact and squeeze the convex rod 68, so that the convex rod 68 drives the guiding plate 65 to move horizontally along the bottom inner wall of the fixed cylinder 61, and then the docking hole 67 moves between the glue outlet holes 5 and the inner holes 64, so that the inner holes 64, the docking hole 67 and the glue outlet holes 5 are on the same straight line, thus forming a glue outlet passage. When the convex points 69 no longer squeeze the convex rod 68, due to the elastic force of the elastic telescopic rod 66, the guiding plate 65 will move in a reset motion, so that the docking hole 67 is misaligned with the inner holes 64 and the glue outlet holes 5, so as to block the glue in the fixed cylinder 61 when the coating cylinder 4 rotates to the position where the glue outlet holes 5 deviate from the inner holes 64, and prevent it from leaking.

[0028] Specifically, the return trough 610 is fan-shaped and arranged at the top of the fixed cylinder 61, while the top of the scraper 611 is arc-shaped, and the top surface of the scraper 611 fits against the arc-shaped inner surface of the coating cylinder 4, so as to continuously scrape the inner surface thereof when relative rotation occurs between the coating cylinder 4 and the fixed cylinder 61, so that the residual glue in the glue outlet hole 5 and between the coating cylinder 4 and the fixed cylinder 61 can be cleaned and dropped into the fixed cylinder 61, thereby improving the utilization rate of the glue and avoiding the residual glue on the surface of the coating cylinder affecting the effect and quality of subsequent continuous gluing operations.

[0029] In an embodiment of the utility model, a toggle assembly 7 is provided on the upper surface of the scraper 611, and the toggle assembly 7 includes a drainage groove 71. The upper surface of the scraper 611 is provided with a drainage groove 71, and the inner surface of the drainage groove 71 is fixedly connected to one end of a torsion rod 72, and the other end of the torsion rod 72 is fixedly connected to a swing plate 73.

[0030] Specifically, there are several groups of toggle assemblies 7, and the several groups of toggle assemblies 7 are evenly distributed in a linear array on the upper surface of the scraper 611, and the toggle assemblies 7 are arranged corresponding to the positions of the glue outlet holes 5, so that the swing plate 73 corresponding to each group of toggle assemblies 7 can be toggled into the glue outlet hole 5 when the coating cylinder 4 rotates, so as to shovel the residual glue in the glue outlet hole 5. At the same time, several silicone serrations are provided at the end of the swing plate 73 to enhance the scraping and cleaning effect of the swing plate 73 on the residual glue in the glue outlet hole 5.

[0031] In the present invention, when in use, the end of the fixed cylinder 61 is connected through an external glue supply device to continuously supply glue to the internal cavity of the fixed cylinder 61, and the conveying device 2 is started to drive the paper product on the conveying device 2 to move to the bottom of the U-shaped frame 3. When passing through the gap between the conveying device 2 and the coating cylinder 4, the coating cylinder 4 is driven to rotate. At this time, the convex point 69 intermittently ejects the convex rod 68, so that the guide plate 65 slides along the inner wall of the fixed cylinder 61, so that the docking hole 67 corresponds to the inner hole 64 and the glue outlet hole 5, so that the glue in the fixed cylinder 61 is discharged, thereby achieving the paper product During the gluing work on the surface, a return material assembly 6 is provided, and the guide plate 65 cooperates with the elastic telescopic rod 66 to realize intermittent alignment of the glue outlet hole 5, the docking hole 67 and the inner hole 64, so that the glue discharge is more uniform. At the same time, the scraper 611 is used to continuously scrape the inner surface of the coating cylinder 4 and the fixed cylinder 61 when the coating cylinder 4 and the fixed cylinder 61 rotate relative to each other, so that the residual glue in the glue outlet hole 5 and between the coating cylinder 4 and the fixed cylinder 61 can be cleaned and dropped into the fixed cylinder 61, thereby improving the utilization rate of the glue and avoiding the residual glue on the surface of the coating cylinder affecting the effect and quality of the subsequent continuous gluing operation.

[0032] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made thereto, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit and concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A gluing device for paper product manufacturing, comprising a frame (1), a conveying device (2) is arranged inside the frame (1), a U-shaped frame (3) is fixedly mounted on the upper surface of the frame (1), a coating cylinder (4) is rotatably mounted on the inner surface of the U-shaped frame (3), and a glue outlet hole (5) is opened on the arc-shaped inner wall of the coating cylinder (4), characterized in that: A material return assembly (6) is arranged inside the coating cylinder (4), and the material return assembly (6) comprises: A fixed cylinder (61), the inner wall of the U-shaped frame (3) is fixedly mounted with the fixed cylinder (61), the inner wall of the fixed cylinder (61) is fixedly mounted with a small motor (62), and the output end of the small motor (62) is fixedly mounted with a stirring rod (63); An inner hole (64), an inner hole (64) is provided on the inner wall of the bottom of the fixed tube (61), a guide plate (65) is slidably mounted on the inner wall of the bottom of the fixed tube (61), an elastic telescopic rod (66) is fixedly mounted between the end of the guide plate (65) and the inner wall of the fixed tube (61), a convex rod (68) is fixedly mounted on one end of the guide plate (65) away from the elastic telescopic rod (66), a convex point (69) is fixedly mounted on the inner wall of the end of the fixed tube (61), and a docking hole (67) is provided on the inner wall of the guide plate (65); A return material trough (610), a return material trough (610) is provided on the arc-shaped inner wall at the top of the fixed cylinder (61), and a scraper (611) is fixedly installed on the inner wall of the return material trough (610).

2. A gluing device for paper product manufacturing according to claim 1, characterized in that: The fixing cylinder (61) is arranged concentrically with the coating cylinder (4), the interior of the fixing cylinder (61) is arranged in a hollow shape, and a connecting cavity is arranged at the end of the fixing cylinder (61).

3. The gluing device for paper product manufacturing according to claim 1, characterized in that: The glue outlet holes (5) are arranged in a plurality of groups, and the plurality of groups of glue outlet holes (5) are evenly distributed in a circular array on the arc-shaped outer wall of the coating cylinder (4), so that the glue discharged from the glue outlet holes (5) can be laminated and coated with the surface of the paper product on the conveying device (2); the inner holes (64) are arranged in a plurality of groups, and the plurality of groups of inner holes (64) are evenly distributed in a linear array on the bottom inner wall of the fixed cylinder (61), and the inner holes (64) are arranged corresponding to the glue outlet holes (5).

4. The gluing device for paper product manufacturing according to claim 1, characterized in that: The inner wall of the fixing cylinder (61) is provided with a circular hole matched with the protruding rod (68), and the protruding rod (68) is arranged inside the circular hole. The end of the fixing cylinder (61) is provided with an annular groove, and the protruding point (69) is arranged inside the annular groove.

5. The gluing device for paper product manufacturing according to claim 1, characterized in that: The upper surface of the scraper (611) is provided with a toggle assembly (7), and the toggle assembly (7) includes a drainage groove (71). The upper surface of the scraper (611) is provided with a drainage groove (71), and the inner surface of the drainage groove (71) is fixedly connected to one end of a torsion bar (72), and the other end of the torsion bar (72) is fixedly connected to a swing plate (73).

6. A gluing device for paper product manufacturing according to claim 5, characterized in that: The end of the swing plate (73) is provided with a plurality of silicone serrations.

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