Multi-layer corrugated paper gluing structure

Abstract

The utility model relates to the field of gluing, in particular to a multilayer corrugated paper gluing structure. Comprising two side plates used for fixing, each side plate is fixedly connected with a vertical plate, the two vertical plates are rotatably connected with a gluing pipe, the gluing pipe is provided with a plurality of glue outlet pipes, each glue outlet pipe is provided with a plurality of first glue outlet holes and a plurality of second glue outlet holes, and the first glue outlet holes and the second glue outlet holes are arranged in a staggered mode. Glue adding holes are formed in the two sides of the glue coating pipe, side plates are fixedly connected to the two sides of the glue coating pipe, an air cylinder is fixedly connected to each side plate, and a glue injection pipe in sliding connection with the glue coating pipe is fixedly connected to an air cylinder rod of each air cylinder. Two middle plates are fixedly connected to the two side plates, the two middle plates are fixedly connected to the arc plate, and a plurality of glue outlet pipes are rotationally connected to the arc plate. And the corrugated protrusions can be coated with glue.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating, and more specifically to a multi-layer corrugated paper adhesive coating structure. Background Technology

[0002] Corrugated paper is a sheet material made by processing linerboard into corrugated layers using corrugated rollers in a corrugating machine, and then bonding the flat paper layer and the corrugated paper layer together with glue. It is generally divided into single-wall and double-wall corrugated paperboard. It has advantages such as low cost, light weight, easy processing, high strength, excellent printability, and convenient storage and handling. Corrugated paper can be used for food or digital product packaging, is relatively environmentally friendly, and has a wide range of applications. When bonding the flat paper layer and the corrugated paper layer with glue, a glue applicator is generally used. When using a glue applicator to bond the flat paper layer and the corrugated paper layer, both layers need to be placed in the applicator first, and then bonded together by the glue rollers. However, when applying glue, the glue applied to the flat paper layer cannot contact the corrugated paper layer, resulting in glue waste. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model provides a multi-layer corrugated paper coating structure that can apply adhesive to the protrusions of the corrugated corrugations.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A multi-layer corrugated paper coating structure includes two first side plates for fixing, each first side plate having a vertical plate fixedly connected to it, and a coating tube rotatably connected to the two vertical plates. The coating tube is provided with multiple glue outlet tubes, each glue outlet tube having multiple first glue outlet holes and multiple second glue outlet holes, which are arranged alternately. Both sides of the coating tube are provided with glue filling holes, and both sides of the coating tube are fixedly connected to the second side plates. Each second side plate is fixedly connected to a cylinder, and a second glue injection tube that is slidably connected to the cylinder rod of each cylinder is fixedly connected to the cylinder rod.

[0006] Furthermore, two middle plates are fixedly connected to the two first side plates, the two middle plates are fixedly connected to the arc plate, and multiple dispensing tubes are rotatably connected to the arc plate.

[0007] Furthermore, two first glue injection tubes are fixedly connected to the two first side plates. Each first glue injection tube has a sleeve fixedly connected to its lower part. Both sleeves are rotatably connected to the glue application tube, and each first glue injection tube corresponds to the glue filling hole.

[0008] Furthermore, a rotating sealing sleeve is provided between both sleeves and the adhesive application tube.

[0009] Furthermore, a first gear is fixedly connected to both sides of the adhesive tube, a second gear is rotatably connected to each upright plate, each second gear meshes with its corresponding first gear, and a first motor that drives the second gear to rotate is fixedly connected to each upright plate.

[0010] Furthermore, both the first gear and the second gear are helical gears.

[0011] Furthermore, the output shafts of the two first motors rotate synchronously.

[0012] Furthermore, a sliding sealing sleeve is provided between the two second glue injection tubes and the glue application tube.

[0013] Furthermore, the plurality of first dispensing holes and the plurality of second dispensing holes on each of the dispensing tubes are alternately arranged in the axial direction.

[0014] Furthermore, the outer walls on both sides of the glue-applying tube are provided with threads, and positioning sleeves are connected to the threads on the outer walls of the glue-applying tube, with each positioning sleeve fitting against the upright plate.

[0015] The beneficial effects of this multi-layer corrugated paper coating structure are as follows: it can apply glue and smooth out the protrusions of the corrugated paper; it can also smooth out the glue by rotating the glue-applying parts; and it can prevent the glue from being squeezed out and not applied by fastening the arc-shaped outer frame to the glue-applying parts under rotation. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 A schematic diagram of a multi-layer corrugated paper coating structure;

[0018] Figure 2 A schematic diagram of the adhesive applicator and adhesive dispensing tube;

[0019] Figure 3 This is a schematic diagram of the position and structure of the arc plate;

[0020] Figure 4 A schematic diagram illustrating the structure for discharging the adhesive.

[0021] Figure 5 This is a schematic diagram of the dispensing tube.

[0022] Figure 6 A schematic diagram of the structure that drives the glue-applying tube to rotate.

[0023] In the diagram: Glue applicator tube 11; Glue outlet tube 12; First glue outlet hole 13; Second glue outlet hole 14; Glue filling hole 15; First side plate 21; Vertical plate 22; Middle plate 23; Arc plate 24; First glue injection tube 25; Sleeve 26; Second side plate 31; Cylinder 32; Second glue injection tube 33; First gear 41; Second gear 42; First motor 43. Detailed Implementation

[0024] refer to Figure 1 , 2 Examples 4 and 5 detail the application of adhesive to multi-layer corrugated paper:

[0025] A multi-layer corrugated paper coating structure includes two first side plates 21 for fixing to a frame of a coating equipment. Each first side plate 21 is fixedly connected to a vertical plate 22. A coating tube 11 is rotatably connected to the two vertical plates 22. The coating tube 11 is provided with multiple glue outlet tubes 12. Each glue outlet tube 12 is provided with multiple first glue outlet holes 13 and multiple second glue outlet holes 14. The multiple first glue outlet holes 13 and multiple second glue outlet holes 14 are arranged alternately. Both sides of the coating tube 11 are provided with glue filling holes 15. Both sides of the coating tube 11 are fixedly connected to second side plates 31. Each second side plate 31 is fixedly connected to a cylinder 32. Each cylinder 32 has a second glue injection tube 33 fixedly connected to its cylinder rod and slidably connected to the coating tube 11. The second glue injection tube 33 is inserted into the coating tube 11 to achieve a slidable connection.

[0026] The corrugated board is made of corrugated cardboard with panels glued to both sides. When applying glue to the corrugated board, only a small area of ​​the glue on the panels actually contacts and bonds to the corrugated board, resulting in wasted glue on the uncontacted areas. Therefore, applying glue to both sides of the corrugated board for bonding allows for thorough bonding while saving glue, making the corrugated board processing more cost-effective. When applying glue to the corrugated board, it is necessary to apply glue to the raised areas. Glue is added to the glue application tube 11 through two glue filling holes 15. Activating two cylinders 32 causes the cylinder rods of the two cylinders 32 to slide two second glue injection tubes 33, which push the glue from both sides. Water pushes the glue into the middle of the glue application tube 11, flowing into multiple glue outlet tubes 12 in the middle, and then squeezing out from multiple first glue outlet holes 13 and multiple second glue outlet holes 14 on the glue outlet tubes 12. The glue is squeezed out from the inside of the multiple glue outlet tubes 12 and applied to multiple edges of the corrugated board, thereby saving glue application to the corrugated board and completing the corrugated board processing. The glue application tube 11 can rotate around its own axis, so that the multiple glue outlet tubes 12 rotate and apply glue to the corrugated board through multiple first glue outlet holes 13 and multiple second glue outlet holes 14. The glue applied to the positions where multiple first glue outlet holes 13 and multiple second glue outlet holes 14 are not provided can be spread evenly, thereby ensuring sufficient glue application to the corrugated board and ensuring sufficient bonding between the corrugated board and the panel. The second glue-dispensing tube 33 is normally located near the two glue-filling holes 15. When the two second glue-dispensing tubes 33 slide, they first block the two glue-filling holes 15, and then, after sliding, simultaneously push glue into the multiple glue-dispensing tubes 12 from both sides, preparing for the processing of corrugated cardboard. The outer walls of the multiple glue-dispensing tubes 12 are cylindrical, which facilitates the application of glue to the flat corrugations when the multiple glue-dispensing tubes 12 rotate; alternatively, the outer walls of the multiple glue-dispensing tubes 12 can be set as a rotating ring with a semi-circular cross-section, which can apply glue to the semi-circular protrusions. The corrugations are formed by extruding the wound strip after release and then participating in the processing of corrugated cardboard, thus undergoing continuous movement. The multiple glue-dispensing tubes 12 adhere to the corrugations for glue application during the transportation of the formed corrugated cardboard.

[0027] refer to Figure 1 , 3 6. A detailed embodiment for preventing glue from being squeezed out from the plurality of first glue outlet holes 13 and the plurality of second glue outlet holes 14 at the upper part of the glue outlet tube 12:

[0028] Two middle plates 23 are fixedly connected to the two first side plates 21, and the two middle plates 23 are fixedly connected to the arc plate 24. Multiple glue outlet tubes 12 are rotatably connected to the arc plate 24. The arc plate 24 is fastened to the outer wall of the upper part of the multiple glue outlet tubes 12, and can block the multiple first glue outlet holes 13 and multiple second glue outlet holes 14 on the upper part of the multiple glue outlet tubes 12, ensuring that glue is squeezed out from the bottom and applied to the corrugated surface. During the rotation of the multiple glue outlet tubes 12, the glue squeezed out from the multiple first glue outlet holes 13 and multiple second glue outlet holes 14 is spread evenly. Through the application of glue to multiple layers of corrugated surface and the bonding of the panel, the processing of multi-layer corrugated paper is completed. Elastic rubber can be glued to the inner wall of the arc plate 24. The elastic deformation of the rubber seals the multiple first glue outlet holes 13 and multiple second glue outlet holes 14 on the glue outlet tubes 12, preventing glue leakage.

[0029] refer to Figure 1 , 2 3. Examples of adding glue into the glue applicator 11 are described in detail:

[0030] Two first glue-injection tubes 25 are fixedly connected to the two first side plates 21. A sleeve 26 is fixedly connected to the lower part of each first glue-injection tube 25. Both sleeves 26 are rotatably connected to the glue-applying tube 11. Each first glue-injection tube 25 corresponds to a glue-filling hole 15. Glue is added through the two first glue-injection tubes 25. When the glue-applying tube 11 is rotated until the first glue-injection tube 25 coincides with the two glue-filling holes 15, glue can flow into the glue-applying tube 11, ready for application. When processing corrugated paper, glue is added to the glue-applying tube 11; when not processing corrugated paper, the inside of the glue-applying tube 11 is cleaned. The glue applicator tube 11 and multiple glue dispensing tubes 12 are two parts that are interlocked together. After being interlocked, the glue applicator tube 11 and multiple glue dispensing tubes 12 are tubular with varying diameters. Corresponding protrusions and grooves are provided at the connection points of the two parts, and the interlocking points of the protrusions and grooves are sealed to prevent glue leakage. The glue applicator tube 11 has continuous threads machined on its outer surface. The glue applicator tube 11 and multiple glue dispensing tubes 12 are fixed by connecting the nuts to the corresponding threads. When it is necessary to clean the glue, the glue applicator tube 11 and multiple glue dispensing tubes 12 are disassembled for cleaning.

[0031] refer to Figure 1 Detailed examples of preventing glue leakage:

[0032] Both sleeves 26 are provided with rotating sealing sleeves between themselves and the adhesive application tube 11. This prevents adhesive from leaking from the connection between the sleeves 26 and the adhesive application tube 11. The rotating sealing sleeves can be one or more existing products, suitable for sealing when the sleeves 26 and the adhesive application tube 11 rotate in this design, and are not a necessary protective feature of this application.

[0033] refer to Figure 1 and 6 A detailed embodiment of driving the glue application tube 11 and multiple glue dispensing tubes 12 to rotate is provided below:

[0034] Both sides of the glue-applying tube 11 are fixedly connected to a first gear 41, and a second gear 42 is rotatably connected to each upright plate 22. Each second gear 42 meshes with its corresponding first gear 41 for transmission. A first motor 43 that drives the second gear 42 to rotate is fixedly connected to each upright plate 22. When the two first motors 43 are started, their output shafts drive the two second gears 42 to rotate. The rotation of the two second gears 42 drives the two first gears 41 to rotate, which in turn drives the glue-applying tube 11 to rotate. This causes multiple glue-dispensing tubes 12 to rotate, thereby applying glue to the corrugated surface through multiple first glue-dispensing holes 13 and multiple second glue-dispensing holes 14 on the multiple glue-dispensing tubes 12, and spreading the applied glue evenly through the rotation of the multiple glue-dispensing tubes 12.

[0035] refer to Figure 6 Detailed embodiments for ensuring stable rotation of the adhesive applicator tube 11:

[0036] Both the first gear 41 and the second gear 42 are helical gears. The transmission of the helical gears ensures stable transmission of the first gear 41 and the second gear 42 and reduces transmission noise, thus ensuring stable rotation of the glue application tube 11.

[0037] refer to Figure 6 An embodiment to ensure stable rotation of the adhesive applicator tube 11:

[0038] The output shafts of the two first motors 43 rotate synchronously. This ensures that the two second gears 42 rotate synchronously, and the two second gears 42 mesh synchronously to drive the two first gears 41 to rotate synchronously. The two first gears 41 drive the glue-applying tubes 11 to rotate stably from both sides, ensuring that the multiple glue-dispensing tubes 12 rotate stably to achieve stable application of glue to the corrugated material.

[0039] refer to Figure 1 , 4 5. Detailed embodiments for ensuring a stable supply of adhesive to multiple dispensing tubes 12:

[0040] A sliding sealing sleeve is provided between the two second dispensing tubes 33 and the coating tube 11. This allows for a stable supply of adhesive to the multiple dispensing tubes 12 as the two second dispensing tubes 33 slide. The sliding sealing sleeve prevents adhesive leakage from the gap between the second dispensing tubes 33 and the coating tube 11. The sliding sealing sleeve can be one or more existing products, suitable for sealing the sliding of the second dispensing tubes 33 and the coating tube 11 in this design, and is not a necessary protective feature of this application.

[0041] refer to Figure 2Detailed examples of ensuring even application of adhesive:

[0042] The plurality of first glue outlet holes 13 and the plurality of second glue outlet holes 14 on each glue outlet tube 12 are alternately arranged in the axial direction. This ensures that the glue extruded from the plurality of first glue outlet holes 13 and the plurality of second glue outlet holes 14 can be completely applied to the corrugated board, preventing gaps in the glue extruded from the plurality of first glue outlet holes 13 and the plurality of second glue outlet holes 14 on each glue outlet tube 12, which would result in the glue not being evenly applied to the corrugated board. This ensures that the glue is evenly distributed on the corrugated board for corrugated board processing.

[0043] refer to Figure 1 and 6 A detailed embodiment of a method for stabilizing the rotation of the positioning adhesive applicator 11 is provided below:

[0044] The outer walls on both sides of the glue-applying tube 11 are threaded, and positioning sleeves are threaded onto the threads on the outer walls of the glue-applying tube 11. Each positioning sleeve is fitted with the upright plate 22. Thus, the positioning sleeves are used to position the glue-applying tube 11 relative to the two upright plates 22, ensuring that the glue-applying tube 11 and the two upright plates 22 can only rotate relative to each other and will not move in the axial direction, thereby ensuring the rotation of the glue-applying tube 11 around its own axis.

Claims

1. A multi-layer corrugated paper coating structure, characterized in that: It includes two first side plates (21) for fixing, each first side plate (21) is fixedly connected to a vertical plate (22), the two vertical plates (22) are rotatably connected to a glue-applying tube (11), the glue-applying tube (11) is provided with multiple glue outlet tubes (12), each glue outlet tube (12) is provided with multiple first glue outlet holes (13) and multiple second glue outlet holes (14), the multiple first glue outlet holes (13) and multiple second glue outlet holes (14) are arranged alternately, glue filling holes (15) are provided on both sides of the glue-applying tube (11), the two sides of the glue-applying tube (11) are fixedly connected to a second side plate (31), each second side plate (31) is fixedly connected to a cylinder (32), and each cylinder (32) has a second glue injection tube (33) fixedly connected to the cylinder rod of the cylinder (32) and slidably connected to the glue-applying tube (11).

2. The multi-layer corrugated paper coating structure according to claim 1, characterized in that: Two middle plates (23) are fixedly connected to the two first side plates (21), and the two middle plates (23) are fixedly connected to the arc plate (24). Multiple glue outlet tubes (12) are rotatably connected to the arc plate (24).

3. The multi-layer corrugated paper coating structure according to claim 1, characterized in that: Two first glue injection tubes (25) are fixedly connected to the two first side plates (21). Each first glue injection tube (25) has a sleeve (26) fixedly connected to its lower part. Both sleeves (26) are rotatably connected to the glue application tube (11). Each first glue injection tube (25) corresponds to the glue filling hole (15).

4. The multi-layer corrugated paper coating structure according to claim 3, characterized in that: Both sleeves (26) are provided with rotating sealing sleeves between them and the adhesive tube (11).

5. The multi-layer corrugated paper coating structure according to claim 1, characterized in that: The adhesive tube (11) is fixedly connected to both sides with a first gear (41), and a second gear (42) is rotatably connected to each vertical plate (22). Each second gear (42) meshes with its corresponding first gear (41) for transmission. A first motor (43) that drives the second gear (42) to rotate is fixedly connected to each vertical plate (22).

6. The multi-layer corrugated paper coating structure according to claim 5, characterized in that: Both the first gear (41) and the second gear (42) are helical gears.

7. The multi-layer corrugated paper coating structure according to claim 5, characterized in that: The output shafts of the two first motors (43) rotate synchronously.

8. The multi-layer corrugated paper coating structure according to claim 1, characterized in that: A sliding sealing sleeve is provided between the two second glue injection tubes (33) and the glue application tube (11).

9. The multi-layer corrugated paper coating structure according to claim 1, characterized in that: The plurality of first dispensing holes (13) and the plurality of second dispensing holes (14) on each of the dispensing tubes (12) are alternately arranged in the axial direction.

10. The multi-layer corrugated paper coating structure according to claim 1, characterized in that: The outer walls on both sides of the glue-applying tube (11) are provided with threads, and positioning sleeves are connected to the threads on the outer walls of the glue-applying tube (11). Each positioning sleeve is fitted with the upright plate (22).

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