Paperboard bonding auxiliary device for corrugated paper production

Abstract

The utility model relates to the technical field of corrugated paper production auxiliary devices, and discloses a paperboard bonding auxiliary device for corrugated paper production, which comprises an operation table, a U-shaped fixing frame is fixedly arranged between the side surfaces of the two ends of the operation table, and at least two telescopic devices are fixedly arranged on the inner top wall of the fixing frame. A pressing plate is fixedly installed at the telescopic lower end of each telescopic device, a plurality of paperboard containing tables matched with the pressing plates are arranged on the upper surface of the operation table, bearing columns are slidably connected to the two opposite sides of the operation table, and a bearing plate is arranged between the two bearing columns. According to the corrugated board gluing device, the glue outlet adjusting unit is arranged, when a corrugated board needs to be glued, the glue outlet amount of the glue outlet pipes can be controlled through the electric control magnetic valve and the multiple glue outlet pipes extending into the horizontal communicating pipe, glue flows to the surface of the gluing roller to conduct uniform gluing on the corrugated board, the tidiness of the operation table is improved, and the working efficiency is improved. And meanwhile, the bonding efficiency of the corrugated boards is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paper production auxiliary devices, in particular to a cardboard bonding auxiliary device for corrugated paper production. Background Art

[0002] Cartons are widely used in society, especially in the packaging field. Many cartons are made of corrugated paper. During the production process of corrugated paper, in order to ensure firmness, most cartons are made of two or even multiple layers of cardboard glued together. However, due to the large contact area between the cardboards, bubbles are easily generated in the middle of the cardboards after bonding or the cardboards are not tightly glued. For this reason, after the cardboards are glued, a pressing device will be used to roll the cardboards to improve the stability of the bonding between the cardboards.

[0003] In order to improve the bonding efficiency during the production of corrugated paper, the prior art has made many improvements to the cardboard bonding auxiliary device for corrugated paper production, such as the patent publication number CN219076706U, which discloses a cardboard bonding auxiliary device for corrugated paper production, including a bottom plate, the upper surface of the bottom plate is fixedly connected with four connecting rods, the upper surface of the four connecting rods is fixedly connected with a top plate, the lower surface of the top plate is fixedly connected with two mounting plates, and one side of the two mounting plates is provided with a through hole. The utility model has the advantages that: a lead screw, a first moving block, a first electric push rod and a glue roller are provided, the motor can drive the lead screw to rotate, the lead screw and the first moving block are threadedly connected, so the rotation of the lead screw can drive the first moving block to move left and right, thereby realizing the left and right movement of the glue roller, the first electric push rod can drive the glue roller to move up and down, the outer surface of the glue roller is provided with glue, and the corrugated paper can be glued, replacing the manual gluing method, which can make the gluing more uniform, save manpower, and improve efficiency.

[0004] The above patent has obvious beneficial effects, but still has the following shortcomings in actual operation:

[0005] In the above-mentioned comparative document, glue is dipped from a material box by a glue coating roller, and the glue coating roller with glue is moved to the placement plate to apply glue to the corrugated cardboard placed on the placement plate. However, in reality, since the glue has a certain viscosity, the glue on the glue coating roller will drip after the glue coating roller dips into the glue in the material box and moves, causing glue to be everywhere on the workbench. The amount of glue at the first position where glue is applied on the corrugated cardboard is more than the amount of glue at the last position where glue is applied, resulting in poor uniformity of the glue coating roller when applying glue to the corrugated cardboard. Therefore, there is an urgent need in the art to improve the cardboard bonding auxiliary device for corrugated paper production, so as to solve the defects of the prior art. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a cardboard bonding auxiliary device for corrugated paper production, which improves the cleanliness of an operating table and improves the efficiency of bonding corrugated cardboard.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cardboard gluing auxiliary device for corrugated paper production, comprising an operating table, a U-shaped fixing frame is fixedly installed between the side surfaces at both ends of the operating table, at least two telescopic devices are fixedly installed on the top wall of the fixing frame, and a pressing plate is fixedly installed on the telescopic lower end of each of the telescopic devices, and a plurality of cardboard placing tables adapted to the pressing plate are provided on the upper surface of the operating table, bearing columns are slidably connected to the opposite sides of the operating table, a bearing plate is provided between the two bearing columns, a glue roller adapted to the cardboard placing table is rotatably connected to the lower surface of the bearing plate, a glue storage box is provided above the bearing plate, and a glue output adjustment unit adapted to the glue output roller and capable of adjusting the glue output amount is provided at the lower end of the glue storage box, a driving unit for driving the bearing columns to move is provided on the side of the operating table, and a height adjustment unit for adjusting the height of the bearing plate is provided on each of the bearing columns, and a plurality of groups of auxiliary positioning units for assisting cardboard positioning are provided on both sides of the operating table.

[0008] Preferably, the glue outlet adjustment unit includes a vertical connecting pipe fixedly installed at the lower end of the glue storage box and connected with the glue storage box, the vertical connecting pipe is provided with an electric-controlled solenoid valve that can adjust the vertical connecting pipe, a horizontal connecting pipe is fixedly installed at the lower end of the vertical connecting pipe, a plurality of vertical glue outlet pipes connected with the horizontal connecting pipe are installed through the supporting plate, the upper ends of several of the glue outlet pipes extend into the interior of the horizontal connecting pipe, the lower ends of several of the glue outlet pipes are aligned with the glue coating roller, and the lower surface of the supporting plate is fixedly connected with symmetrical guardrails whose sides are close to the glue coating roller.

[0009] Preferably, the driving unit includes two driving motors symmetrically fixedly installed at one end of the operating table, a sliding block is fixedly connected to the side surface of the lower end of the supporting column, and sliding grooves adapted to the sliding blocks are opened on the opposite sides of the operating table. A screw rod is rotatably connected in the sliding groove, the screw rod passes through the sliding block and is threadedly connected to the sliding block, and one end of the screw rod passes through one end of the operating table and is fixedly installed with the output end of the driving motor.

[0010] Preferably, the height adjustment unit includes two connecting rods symmetrically fixedly installed on opposite sides of the supporting plate, and a movable groove adapted to one end of the connecting rod is opened in the supporting column. One end of the connecting rod can move up and down in the movable groove, and an adjustment rod with one end passing through the upper end of the supporting column and extending to the outside is rotatably connected in the movable groove. The adjusting rod passes through the connecting rod and is threadedly connected to the connecting rod, and a limiting ring is threadedly connected to the side surface of the upper end of the adjusting rod.

[0011] Preferably, the auxiliary positioning unit includes a moving seat slidably connected in the sliding groove, the moving seat sleeve is arranged on the side of the screw rod, an L-shaped connecting frame is fixedly installed on the side of the moving seat, one end of the connecting frame is against the side of the cardboard placement table, and the upper side of the connecting frame is fixedly connected to a limiting frame, an open groove connected to the outside on both sides is opened in the limiting frame, a limiting plate is slidably connected in the open groove, a guide column is provided at the bottom of the open groove, a first spring is sleeved on the side of the guide column, guide holes adapted to the guide columns are penetrated at the upper and lower ends of the limiting plate, and a second spring sleeved on the side of the screw rod is provided between one side of the moving seat and the side wall of the inner end of the sliding groove.

[0012] Preferably, paper stop strips are fixedly connected to both sides of the upper surface of the cardboard placement table.

[0013] Preferably, a liquid receiving frame is provided on the upper surface of the operating table, and the liquid receiving frame is adapted to the glue coating roller.

[0014] In view of the deficiencies of the prior art, the utility model provides a cardboard bonding auxiliary device for corrugated paper production, which overcomes the deficiencies of the prior art. The beneficial effects of the utility model are:

[0015] 1. In the utility model, by setting a glue discharging regulating unit, when it is necessary to coat the corrugated cardboard with glue, the glue discharging amount of the glue discharging pipe can be controlled through the electrically controlled magnetic valve and a plurality of glue discharging pipes extending into the horizontal connecting pipe, and the glue flows to the surface of the glue coating roller to coat the corrugated cardboard evenly, thereby improving the cleanliness of the operating table and the efficiency of gluing the corrugated cardboard.

[0016] 2. In the utility model, a height adjustment unit is provided, and the height of the connecting rod can be adjusted through the cooperation of the adjusting rod and the limiting ring, thereby adjusting the height of the supporting plate and the gluing roller, and fixing their positions through the limiting ring. It is suitable for gluing corrugated cardboards of different thicknesses, thereby improving the application range of the overall device.

[0017] 3. In the utility model, an auxiliary positioning unit is provided. When it is necessary to glue the cardboard placed on the cardboard placement table, the bearing column can be made to give way through the cooperation of the movable seat and the second spring. When the pressure plate moves down, the pressure plate can be made to give way through the cooperation of the limit frame, the limit plate, the first spring and the second spring. The limit plate has the effect of facilitating the positioning of the corrugated cardboard and does not hinder the gluing of the glue roller.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the load-bearing plate and the glue-coating roller in the utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the glue storage box, etc. in the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the limiting plate in the utility model;

[0024] Figure 5 for Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 6 for Figure 3 Enlarged structural diagram at B in the middle.

[0026] In the figure: 1. operating table; 2. fixing frame; 3. telescopic device; 4. pressing plate; 5. bearing column; 6. bearing plate; 7. glue coating roller; 8. glue storage box; 9. glue output adjustment unit; 10. cardboard placement table; 11. driving unit; 12. height adjustment unit; 13. auxiliary positioning unit; 14. vertical connecting pipe; 15. horizontal connecting pipe; 16. glue output pipe; 17. guardrail; 18. driving motor; 19. sliding block; 20. sliding groove; 21. screw rod; 22. connecting rod; 23. moving groove; 24. adjusting rod; 25. limiting ring; 26. electric controlled magnetic valve; 27. moving seat; 28. connecting frame; 29. ​​limiting frame; 30. limiting plate; 31. opening groove; 32. guide column; 33. first spring; 34. guide hole; 35. paper stop strip; 36. liquid receiving frame; 37. second spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1

[0029] See also Figure 1-Figure 6A cardboard gluing auxiliary device for corrugated paper production comprises an operating table 1, a U-shaped fixing frame 2 is fixedly installed between the two end sides of the operating table 1, at least two telescopic devices 3 are fixedly installed on the inner top wall of the fixing frame 2, and a pressing plate 4 is fixedly installed on the telescopic lower end of each telescopic device 3, and a plurality of cardboard placing tables 10 adapted to the pressing plate 4 are arranged on the upper surface of the operating table 1, bearing columns 5 are slidably connected to the opposite sides of the operating table 1, a bearing plate 6 is arranged between the two bearing columns 5, and a glue coating roller 7 adapted to the cardboard placing table 10 is rotatably connected to the lower surface of the bearing plate 6, a glue storage box 8 is arranged above the bearing plate 6, and a glue output adjustment unit 9 adapted to the glue coating roller 7 and capable of adjusting the glue output amount is arranged at the lower end of the glue storage box 8, a driving unit 11 for driving the bearing columns 5 to move is arranged on the side of the operating table 1, and a height adjustment unit 12 for adjusting the height of the bearing plate 6 is arranged on each bearing column 5, and a plurality of groups of auxiliary positioning units 13 for assisting cardboard positioning are arranged on both sides of the operating table 1.

[0030] The glue outlet adjustment unit 9 includes a vertical connecting pipe 14 fixedly installed at the lower end of the glue storage box 8 and connected with the glue storage box 8. The vertical connecting pipe 14 is provided with an electrically controlled solenoid valve 26 that can adjust the vertical connecting pipe 14. A horizontal connecting pipe 15 that is horizontal and connected with the vertical connecting pipe 14 is fixedly installed at the lower end of the vertical connecting pipe 14. A plurality of vertical glue outlet pipes 16 that are connected with the horizontal connecting pipe 15 are installed through the supporting plate 6. The upper ends of the plurality of glue outlet pipes 16 extend into the interior of the horizontal connecting pipe 15. The lower ends of the plurality of glue outlet pipes 16 are aligned with the glue coating roller 7. The lower surface of the supporting plate 6 is fixedly connected with symmetrical guardrails 17 whose sides are close to the glue coating roller 7. Paper stop strips 35 are fixedly connected on both sides of the upper surface of the cardboard placement table 10. A liquid receiving frame 36 is provided on the upper surface of the operating table 1, and the liquid receiving frame 36 is adapted to the glue coating roller 7.

[0031] Specific implementation method of this embodiment: when corrugated paperboard needs to be glued, according to the thickness of the corrugated paper to be glued, the height of the carrying plate 6 is adjusted and fixed by the height adjustment unit 12 to ensure that the glue roller 7 can effectively glue the corrugated paperboard placed on the paperboard placement table 10, and the first corrugated paperboard to be glued is placed on a paperboard placement table 10 by an operator or an automatic feeding device, and two paper stoppers 35 with a height less than the thickness of the corrugated paperboard are used to limit the position of the corrugated paperboard, and the auxiliary positioning unit 13 can assist The cardboard placed on the cardboard placement table 10 is quickly positioned. By starting the driving unit 11, the driving unit 11 drives the two bearing columns 5 to move on the side of the operating table 1. When the bearing plate 6 moves to the position of the cardboard placement table 10, the electrically controlled magnetic valve 26 is opened, and the glue in the glue storage box 8 flows into the horizontal connecting pipe 15 through the vertical connecting pipe 14, and is diverted to the side of the glue roller 7 through the glue outlet pipe 16. At this time, the glue roller 7 contacts and rolls with the corrugated paper on the cardboard placement table 10, and then glues the upper surface of the corrugated paper. Among them, the fence 17 is used to The upper end of the glue outlet pipe 16 extends to the inside of the horizontal connecting pipe 15. When the glue depth in the horizontal connecting pipe 15 is higher than the upper end of the glue outlet pipe 16, the glue will flow down along the glue outlet pipe 16 to prevent the glue output of each glue outlet pipe 16 from being different, and the glue output can be controlled by the electric control magnetic valve 26. When the glue coating on the upper surface of the first corrugated board is completed, the electric control magnetic valve 26 is closed, and the driving unit 11 drives the carrier plate 6 back to the middle position of the operating table 1. At this time, the liquid receiving frame 36 receives the glue remaining on the surface of the glue coating roller 7 to prevent the glue from flowing onto the operating table 1 Then, the operator or the automatic feeding device places the second corrugated cardboard on the first corrugated cardboard that has been glued, and starts the telescopic device 3 to drive the pressing plate 4 to move downward to bond the two corrugated cardboards. At the same time, when the first corrugated cardboard and the second corrugated cardboard are pressed and bonded, the third corrugated cardboard can be placed on another cardboard placement table 10 on the operating table 1, and glue is applied and pressed again in the above manner. The two workstations work alternately in sequence to achieve the effect of accurate gluing of the corrugated cardboard and improve the efficiency of gluing the corrugated cardboard.

[0032] Among them, the telescopic device 3 and the electrically controlled solenoid valve 26 mentioned above can be purchased on the market. They are mature technologies and have been fully disclosed, so they are not repeated in the specification. The telescopic device 3 and the electrically controlled solenoid valve 26 are both equipped with power connection lines, and they are electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power lines, and the main controller can be a conventional known device such as a computer that plays a control role.

[0033] Embodiment 2

[0034] See also Figure 1-Figure 5, this embodiment includes the above-mentioned embodiment, wherein the driving unit 11 includes two driving motors 18 symmetrically fixedly installed at one end of the operating table 1, a sliding block 19 is fixedly connected to the side of the lower end of the supporting column 5, and sliding grooves 20 adapted to the sliding block 19 are opened on the opposite sides of the operating table 1. A screw rod 21 is rotatably connected in the sliding groove 20, the screw rod 21 penetrates the sliding block 19 and is threadedly connected to the sliding block 19, and one end of the screw rod 21 penetrates one end of the operating table 1 and is fixedly installed with the output end of the driving motor 18.

[0035] The specific implementation method in this embodiment is as follows: when the position of the supporting column 5 needs to be moved, the driving motor 18 is started, and the output end of the driving motor 18 drives the screw rod 21 to rotate. When the screw rod 21 rotates, it drives the sliding block 19 to slide in the sliding groove 20. The two driving motors 18 are synchronous motors, thereby driving the two supporting columns 5 to move simultaneously and synchronously.

[0036] Among them, the above-mentioned drive motor 18 can be purchased on the market. It is a mature technology and has been fully disclosed, so it is not repeated in the specification. The drive motor 18 is equipped with a power connection line, and it is electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power line, and the main controller can be a conventional known device such as a computer that plays a control role.

[0037] Implementation Three

[0038] See also Figure 2 and Figure 3 This embodiment includes all the above embodiments, wherein the height adjustment unit 12 includes two connecting rods 22 symmetrically fixedly installed on opposite sides of the bearing plate 6, and a movable groove 23 adapted to one end of the connecting rod 22 is opened in the bearing column 5. One end of the connecting rod 22 can move up and down in the movable groove 23, and an adjusting rod 24 with one end passing through the upper end of the bearing column 5 and extending to the outside is rotatably connected in the movable groove 23. The adjusting rod 24 passes through the connecting rod 22 and is threadedly connected to the connecting rod 22. The upper end side of the adjusting rod 24 is threadedly connected to a limiting ring 25.

[0039] The specific implementation method of this embodiment is as follows: when the height position of the glue coating roller 7 needs to be adjusted, the adjusting rod 24 is rotated. When the adjusting rod 24 rotates, it will drive one end of the connecting rod 22 to move along the inside of the movable groove 23, thereby adjusting the position of the supporting plate 6 and the glue coating roller 7. When the position of the glue coating roller 7 is adjusted to the required position, the limiting ring 25 is tightened to fix the position of the adjusting rod 24.

[0040] Implementation Four

[0041] See also Figure 1 , Figure 4 and Figure 5, this embodiment includes all the above embodiments, wherein the auxiliary positioning unit 13 includes a moving seat 27 slidably connected in the sliding groove 20, the moving seat 27 is sleeved on the side of the screw rod 21, an L-shaped connecting frame 28 is fixedly installed on the side of the moving seat 27, one end of the connecting frame 28 is against the side of the cardboard placement table 10, and a limiting frame 29 is fixedly connected to the upper side of the connecting frame 28. An open groove 31 connected to the outside on both sides is opened in the limiting frame 29, and a limiting plate 30 is slidably connected in the open groove 31. A guide column 32 is provided at the bottom of the open groove 31, and a first spring 33 is sleeved on the side of the guide column 32. Guide holes 34 adapted to the guide column 32 are opened at the upper and lower ends of the limiting plate 30, and a second spring 37 sleeved on the side of the screw rod 21 is provided between one side of the moving seat 27 and the side wall of the inner end of the sliding groove 20.

[0042] Specific implementation method in this embodiment: when the operator or the automatic loading device places the corrugated cardboard, one side of the limit plate 30 is against the side of the cardboard placement platform 10, and the corrugated cardboard adapted to the cardboard placement platform 10 is limited by the cooperation of the limit plate 30 and the paper stop strip 35. When the driving unit 11 drives the bearing column 5 to move, the height of the paper stop strip 35 is lower than the thickness of the corrugated cardboard, so the paper stop strip 35 is not affected. However, since the limit plate 30 also needs to limit the second corrugated cardboard that needs to be glued, the higher height of the limit plate 30 will affect the movement and gluing of the glue coating roller 7. When the bearing column 5 moves to contact the movable seat 27, the bearing column 5 continues to move and pushes the movable seat 27 to move together, and drives the limit plate 30 to move together through the connecting frame 28, thereby solving the problem of limit. The plate 30 affects the glue roller 7. When the gluing is completed, the bearing column 5 moves back. At this time, the tension of the second spring 37 will push the movable seat 27 back to the starting position. The operator or the automatic feeding device places the second corrugated cardboard on the corrugated cardboard that has been glued, and cooperates with the limit plate 30 to facilitate the positioning of the cardboard. When the pressing plate 4 moves down to press the two corrugated cardboards, the pressing plate 4 will squeeze the limit plate 30 to move down in the opening groove 31. At this time, the first spring 33 is compressed and shrinks, and the guide column 32 moves in the guide hole 34. The guide column 32 prevents the first spring 33 from being compressed and deformed. After the limit plate 30 moves down, it will not affect the compression of the corrugated cardboard. When the pressing plate 4 rises, the tension of the first spring 33 will lift the limit plate 30 to the starting position again, thereby improving the efficiency of gluing the corrugated cardboard.

[0043] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cardboard bonding auxiliary device for corrugated paper production, comprising an operating table (1), characterized in that: A U-shaped fixing frame (2) is fixedly installed between the two end sides of the operating table (1), at least two telescopic devices (3) are fixedly installed on the inner top wall of the fixing frame (2), and a pressing plate (4) is fixedly installed on the telescopic lower end of each of the telescopic devices (3). The upper surface of the operating table (1) is provided with a plurality of cardboard placing tables (10) adapted to the pressing plate (4), and the operating table (1) is slidably connected with bearing columns (5) on opposite sides, and a bearing plate (6) is provided between the two bearing columns (5), and the lower surface of the bearing plate (6) is rotatably connected with a cardboard placing table (10) adapted to the pressing plate (4). A glue coating roller (7) is adapted to the board placement table (10); a glue storage box (8) is arranged above the carrying plate (6); a glue output adjustment unit (9) adapted to the glue coating roller (7) and capable of adjusting the glue output amount is arranged at the lower end of the glue storage box (8); a driving unit (11) for driving the carrying column (5) to move is arranged on the side of the operating table (1); each of the carrying columns (5) is provided with a height adjustment unit (12) for adjusting the height of the carrying plate (6); and a plurality of groups of auxiliary positioning units (13) for assisting in the positioning of paperboards are arranged on both sides of the operating table (1).

2. A cardboard bonding auxiliary device for corrugated paper production according to claim 1, characterized in that: The glue outlet adjustment unit (9) comprises a vertical connecting pipe (14) fixedly mounted at the lower end of the glue storage box (8) and connected to the glue storage box (8); the vertical connecting pipe (14) is provided with an electrically controlled solenoid valve (26) capable of adjusting the vertical connecting pipe (14); a horizontal connecting pipe (15) in a horizontal shape and connected to the vertical connecting pipe (14) is fixedly mounted at the lower end of the vertical connecting pipe (14); a plurality of vertical glue outlet pipes (16) connected to the horizontal connecting pipe (15) are installed through the support plate (6); the upper ends of the plurality of glue outlet pipes (16) extend into the interior of the horizontal connecting pipe (15); the lower ends of the plurality of glue outlet pipes (16) are aligned with the glue coating roller (7); and a symmetrical baffle (17) whose sides are close to the glue coating roller (7) is fixedly connected to the lower surface of the support plate (6).

3. A cardboard bonding auxiliary device for corrugated paper production according to claim 1, characterized in that: The driving unit (11) comprises two driving motors (18) symmetrically fixedly mounted on one end of the operating table (1); a sliding block (19) is fixedly connected to the side surface of the lower end of the supporting column (5); sliding grooves (20) adapted to the sliding blocks (19) are provided on opposite sides of the operating table (1); a screw rod (21) is rotatably connected in the sliding groove (20); the screw rod (21) passes through the sliding block (19) and is threadedly connected to the sliding block (19); one end of the screw rod (21) passes through one end of the operating table (1) and is fixedly mounted to the output end of the driving motor (18).

4. A cardboard bonding auxiliary device for corrugated paper production according to claim 1, characterized in that: The height adjustment unit (12) comprises two connecting rods (22) symmetrically fixedly mounted on opposite sides of the bearing plate (6); a movable groove (23) adapted to one end of the connecting rod (22) is provided in the bearing column (5); one end of the connecting rod (22) can move up and down in the movable groove (23); an adjusting rod (24) having one end penetrating the upper end of the bearing column (5) and extending to the outside is rotatably connected in the movable groove (23); the adjusting rod (24) penetrates the connecting rod (22) and is threadedly connected to the connecting rod (22); the upper end side surface of the adjusting rod (24) is threadedly connected to a limit ring (25).

5. A cardboard bonding auxiliary device for corrugated paper production according to claim 3, characterized in that: The auxiliary positioning unit (13) comprises a movable seat (27) slidably connected in the sliding groove (20), the movable seat (27) being sleeved on the side of the screw rod (21), an L-shaped connecting frame (28) being fixedly installed on the side of the movable seat (27), one end of the connecting frame (28) being abutted against the side of the cardboard placing platform (10), a limiting frame (29) being fixedly connected to the upper side of the connecting frame (28), and the limiting frame (29) being provided with openings on both sides communicating with the outside A limit plate (30) is slidably connected in the open groove (31), a guide column (32) is provided at the bottom of the open groove (31), a first spring (33) is sleeved on the side of the guide column (32), guide holes (34) adapted to the guide column (32) are penetrated through the upper and lower ends of the limit plate (30), and a second spring (37) sleeved on the side of the screw rod (21) is provided between one side of the movable seat (27) and the side wall of the inner end of the sliding groove (20).

6. A cardboard bonding auxiliary device for corrugated paper production according to claim 1, characterized in that: Paper stop strips (35) are fixedly connected to both sides of the upper surface of the cardboard placement platform (10).

7. A cardboard bonding auxiliary device for corrugated paper production according to claim 1, characterized in that: The upper surface of the operating table (1) is provided with a liquid receiving frame (36), and the liquid receiving frame (36) is adapted to the glue coating roller (7).

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