Automatic gluing device and method for corrugated paper

Abstract

The present invention discloses an automatic gluing device and method for corrugated paper, the device comprising a glue storage box, a gluing mechanism and a supporting wheel; a side surface of the glue storage box is provided with an arc-shaped glue-taking notch; the gluing mechanism comprises a gluing wheel, a glue suction component and a rotary drive mechanism; the gluing wheel is arranged on one side of the glue storage box, and the outer circumference of the gluing wheel cooperates with the arc-shaped glue-taking notch; a plurality of hole structures are provided on the gluing wheel along the circumference direction of the gluing wheel; the glue suction component comprises a glue suction rod, a power spring and a glue suction extrusion plate, the number of the glue suction rod and the power spring being the same as the number of the hole structures; the glue suction extrusion plate is provided with a glue suction drive extrusion surface located on the rotation path of the glue suction sliding transmission part, the glue suction drive extrusion surface comprising a glue suction feeding section and a glue suction holding section. The present invention can not only quantitatively apply glue to the corrugated paperboard, with a stable and controllable gluing effect, but also can adjust the amount of glue to adapt to different occasions, with good flexibility.

Description

Technical Field

[0001] The invention relates to a gluing device and method, and in particular to an automatic gluing device and method for corrugated paper. Background Art

[0002] The production process of corrugated boxes includes: placing corrugated cardboard, conveying corrugated cardboard, grooving corrugated cardboard, gluing corrugated cardboard, folding corrugated cardboard, and laminating corrugated cardboard.

[0003] Among them, when applying glue on corrugated cardboard, a cardboard upper surface gluing device disclosed in the utility model patent with authorization announcement number CN218838791U can be used. The gluing device is directly connected to the gluing wheel through a gluing box, and the gluing wheel is directly connected to the upper surface of the cardboard, which can greatly shorten the gluing path. The design of the brush channel, feeding channel and gluing channel ensures that the paper can move stably while gluing.

[0004] The above-mentioned gluing device has the following problems:

[0005] 1. The glue in the glue box is transferred to the cardboard through the glue storage groove. This is a passive gluing operation and is uncontrollable. It is difficult to ensure that each glue storage groove can transfer a certain amount of glue to the cardboard. The gluing effect needs to be improved.

[0006] 2. The amount of glue transferred by the glue storage groove cannot be adjusted, and different amounts of glue cannot be configured according to different situations, which has poor flexibility. Summary of the Invention

[0007] The purpose of the present invention is to overcome the above-mentioned problems and provide a corrugated paper automatic gluing device, which can not only apply glue to the corrugated paper board in a quantitative manner, with a stable and controllable gluing effect, but also can adjust the amount of glue to adapt to different occasions and has good flexibility.

[0008] Another object of the present invention is to provide a corrugated paper gluing method.

[0009] The purpose of the present invention is achieved through the following technical solutions:

[0010] An automatic gluing device for corrugated paper includes a glue storage box for storing glue, a gluing mechanism for taking glue from the glue storage box and transferring the glue to the corrugated paper, and a support wheel for supporting the corrugated paper.

[0011] A side surface of the glue storage box is provided with an arc-shaped glue removal notch;

[0012] The glue-spreading mechanism includes a glue-spreading wheel, a glue-sucking assembly, and a rotary drive mechanism; the glue-spreading wheel is arranged on one side of the glue storage box, and the outer circumferential surface of the glue-spreading wheel cooperates with the arc-shaped glue-taking notch; a plurality of hole structures are opened on the glue-spreading wheel along the circumferential direction of the glue-spreading wheel, each hole structure includes a piston hole, a spring mounting hole, and a glue-sucking sliding hole, the piston hole and the spring mounting hole are located in the same radial direction, the piston hole is located at one end away from the center of the glue-spreading wheel, and the glue-sucking sliding holes are provided with two and are connected on both sides of the spring mounting hole; the rotary drive mechanism is dynamically connected to the glue-spreading wheel; the support wheel is located directly below the glue-spreading wheel;

[0013] The glue suction assembly includes a glue suction rod, a power spring and a glue suction extrusion plate, and the number of the glue suction rods and the power springs is the same as the number of the hole structures; the glue suction rod includes a piston part, a spring mounting part and a glue suction sliding transmission part, and the piston part is fitted in the piston hole; the power spring is arranged in the spring mounting hole and sleeved on the spring mounting part, and the two ends of the power spring are respectively pressed against the bottom surface of the piston part and the spring mounting hole; one end of the glue suction sliding transmission part is fixed on the piston part, and the other end of the glue suction sliding transmission part passes through the glue suction sliding hole and extends to the outside of the side of the glue coating wheel;

[0014] The glue suction extrusion plates are provided with two and are respectively arranged outside the two side surfaces of the glue coating wheel, and the two glue suction extrusion plates are both provided with glue suction drive extrusion surfaces located on the rotation path of the glue suction sliding transmission part, and the glue suction drive extrusion surface includes a glue suction feeding section and a glue suction holding section; in the non-glue suction driving state, the end face of the piston part of the glue suction rod coincides with the outer circumferential surface of the glue coating wheel; when the glue suction sliding transmission part of the glue suction rod cooperates with the glue suction feeding section of the glue suction drive extrusion surface, the piston hole corresponding to the glue suction sliding transmission part of the glue suction rod is located at the arc-shaped glue taking notch of the glue storage box; when the glue suction sliding transmission part of the glue suction rod cooperates with the glue suction holding section of the glue suction drive extrusion surface, the piston hole corresponding to the glue suction sliding transmission part of the glue suction rod is located between the arc-shaped glue taking notch of the glue storage box and the supporting wheel.

[0015] In a preferred embodiment of the present invention, the glue box is mounted on an adaptively adjustable structure comprising a fixed seat, an adjustment screw, and an adaptive contact spring. The fixed seat is fixed to the frame. The tail of the adjustment screw is connected to the fixed seat via a threaded structure, and the axis of the adjustment screw extends horizontally and is perpendicular to the axis of the glue-applying wheel. The glue box is slidably mounted on the adjustment screw. The adaptive contact spring is sleeved on the adjustment screw, with its ends respectively abutting against the head of the adjustment screw and the glue box. With this structure, the adaptive contact spring can adaptively force the glue box to fit tightly against the glue-applying wheel, preventing glue leakage. Furthermore, rotating the adjustment screw can change the force of contact between the glue box and the glue-applying wheel to meet different needs.

[0016] In a preferred embodiment of the present invention, multiple groups of hole structures are provided along the axial direction of the rubber coating wheel, and each group of hole structures includes multiple hole structures evenly arranged along the circumferential direction of the rubber coating wheel.

[0017] In a preferred embodiment of the present invention, the glue suction and extrusion plate is arranged on the glue storage box through a structure in which the distance between the plate and the center of the glue coating wheel can be adjusted.

[0018] Furthermore, the structure for adjusting the distance from the center of the glue-applying wheel includes an oblong hole, a mounting rod, and a fastening nut. The oblong holes are provided in parallel on the glue-sucking extrusion plate, and the mounting rods are provided in parallel, each of which passes through a different oblong hole and is fixedly connected to the fastening nut. With this structure, the fastening nut can be loosened to adjust the distance between the glue-sucking extrusion plate and the center of the glue-applying wheel, that is, to adjust the stroke of the piston portion of the glue-sucking rod, thereby obtaining different glue suction amounts, adapting to different occasions, and providing greater flexibility.

[0019] In a preferred embodiment of the present invention, the rotary drive mechanism includes a rotary drive motor and a rotary transmission assembly, and the rotary transmission assembly is connected between the rubber coating wheel and the rotary drive motor.

[0020] Furthermore, the rotary transmission assembly includes sprockets and chains. There are four sprockets, three of which are directly or indirectly connected to the rotation drive motor, the glue coating wheel and the support wheel respectively, and the chain is connected between the four sprockets.

[0021] Furthermore, the support wheel is mounted on a spacing adjustment structure, which includes an adjustment mounting plate, an adjustment rod, and an adjustment locking nut. One end of the adjustment mounting plate is hinged to the frame, and the other end of the adjustment mounting plate is hinged to one end of the adjustment rod. The other end of the adjustment rod passes through a hinged seat provided on the frame and is connected to the adjustment locking nut. The support wheel is rotatably connected to the adjustment mounting plate. With this structure, rotating the adjustment locking nut drives the adjustment rod to move, which in turn drives the support wheel closer to or away from the gluing wheel via the adjustment mounting plate, making it suitable for corrugated paper of varying thicknesses.

[0022] Furthermore, another sprocket is mounted on a tensioning adjustment structure, which includes a tensioning mounting plate, a tensioning rod, and a tensioning locking nut. One end of the tensioning mounting plate is hinged to the frame, and the other end of the tensioning mounting plate is hinged to one end of the tensioning rod. The other end of the tensioning rod passes through a hinged seat provided on the frame and is connected to the tensioning locking nut. The other sprocket is rotatably connected to the tensioning mounting plate. With the above structure, after adjusting the distance between the support wheel and the rubber coating wheel, rotating the tensioning locking nut in the corresponding direction can drive the tensioning rod to move, thereby driving the other sprocket to pull the chain in through the tensioning mounting plate, ensuring smooth power transmission.

[0023] In a preferred embodiment of the present invention, an upper protective cover is provided above the glue coating wheel, lower protective covers are provided on both sides of the supporting wheel, and a glue collecting box is provided below the lower protective covers.

[0024] A corrugated paper gluing method comprises the following steps:

[0025] Put glue into the glue box, and stick the outer surface of the glue-applying wheel to the arc-shaped glue-taking notch, which serves as the movable side of the glue box;

[0026] The corrugated paper to be glued is transported between the gluing wheel and the supporting wheel through the conveying mechanism, and the corrugated paper is supported by the supporting wheel at this time;

[0027] The glue-spreading wheel is driven by the rotary driving mechanism to rotate downward relative to the glue storage box, driving the glue-sucking rod on the glue-sucking wheel to approach the glue-sucking extrusion plate. When the glue-sucking sliding transmission part of the glue-sucking rod contacts the glue-sucking feeding section of the glue-sucking driving extrusion surface, the piston hole corresponding to the glue-sucking sliding transmission part of the glue-sucking rod is located at the arc-shaped glue-taking notch of the glue storage box, and the glue-sucking feeding section of the glue-sucking driving extrusion surface squeezes the glue-sucking rod toward the center of the glue-sucking wheel, so that the glue-sucking sliding transmission part of the glue-sucking rod moves toward the center of the glue-sucking wheel relative to the corresponding glue-sucking sliding transmission part. At the same time, the piston part of the glue-sucking rod retracts inward, sucking the glue in the glue storage box into the piston hole corresponding to the piston part of the glue-sucking rod. At this time, the power spring is compressed and deformed to store energy.

[0028] When the glue sucking sliding transmission part of the glue sucking rod cooperates with the glue sucking holding section of the glue sucking driving extrusion surface, the piston part of the glue sucking rod remains stationary and gradually approaches the corrugated paper to be glued and the supporting wheel;

[0029] When the glue sucking rod approaches the corrugated paper to be glued, the glue sucking extrusion plate cancels the squeezing effect on the glue sucking rod, and the power spring releases potential energy to restore the deformation, driving the glue sucking rod to move toward the center of the glue coating wheel, pushing the glue in the piston hole onto the corrugated paper below;

[0030] According to the above operation, the plurality of glue suction rods transfer the glue in the glue storage box to the corrugated paper in a circular manner.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The automatic gluing device for corrugated paper of the present invention can quantitatively absorb glue onto the gluing wheel by arranging a glue suction rod and a piston hole, and then transfer the glue to the corrugated paper, and the gluing effect is stable and controllable.

[0033] 2. By adjusting the sliding distance of the glue suction rod, the amount of glue sucked can be adjusted to adapt to different occasions with better flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a front view of the automatic gluing device for corrugated paper of the present invention.

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the automatic gluing device for corrugated paper of the present invention.

[0036] Figure 3 This is a rear view of the automatic gluing device for corrugated paper of the present invention.

[0037] Figure 4 It is a front view of the glue coating wheel and the glue suction assembly of the present invention.

[0038] Figure 5 It is a schematic exploded view of the three-dimensional structure of the glue coating wheel and the glue suction component of the present invention.

[0039] Figure 6 It is a cross-sectional view of the glue coating wheel and the glue suction component of the present invention.

[0040] Figure 7 It is a cross-sectional view of the rubber coating wheel of the present invention.

[0041] Figure 8 for Figure 2 Magnified view of X. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0043] See also Figure 1-Figure 7 The automatic gluing device for corrugated paper of this embodiment includes a glue storage box 1 for storing glue, a gluing mechanism for taking glue from the glue storage box 1 and transferring the glue to the corrugated paper, and a support wheel 2 for supporting the corrugated paper; one side of the glue storage box 1 is provided with an arc-shaped glue taking notch.

[0044] See also Figure 1-Figure 7The glue coating mechanism includes a glue coating wheel 3, a glue suction component and a rotary drive mechanism; the glue coating wheel 3 is arranged on one side of the glue storage box 1, and the outer cylindrical surface of the glue coating wheel 3 cooperates with the arc-shaped glue taking notch; along the circumferential direction of the glue coating wheel 3, a plurality of hole structures are opened on the glue coating wheel 3, each hole structure includes a piston hole 4, a spring mounting hole 5 and a glue suction sliding hole 6, the piston hole 4 and the spring mounting hole 5 are located in the same radial direction, the piston hole 4 is located at one end away from the center of the circle of the glue coating wheel 3, and the glue suction sliding holes 6 are provided with two and are connected on both sides of the spring mounting hole 5; the rotary drive mechanism is dynamically connected to the glue coating wheel 3; the support wheel 2 is located directly below the glue coating wheel 3.

[0045] See also Figure 1-Figure 7 The glue suction component includes a glue suction rod 7, a power spring 8 and a glue suction extrusion plate 9. The number of the glue suction rods 7 and the power springs 8 is the same as the number of the hole structures; the glue suction rod 7 includes a piston part 7-1, a spring mounting part 7-2 and a glue suction sliding transmission part 7-3. The piston part 7-1 is fitted in the piston hole 4; the power spring 8 is arranged in the spring mounting hole 5 and is sleeved on the spring mounting part 7-2. The two ends of the power spring 8 are respectively pressed against the bottom surface of the piston part 7-1 and the spring mounting hole 5; one end of the glue suction sliding transmission part 7-3 is fixed on the piston part 7-1, and the other end of the glue suction sliding transmission part 7-3 passes through the glue suction sliding hole 6 and extends to the outside of the side of the glue coating wheel 3.

[0046] See also Figure 1-Figure 7 , the glue suction extrusion plates 9 are provided with two and are respectively arranged outside the two side surfaces of the glue coating wheel 3, and the two glue suction extrusion plates 9 are both provided with a glue suction drive extrusion surface located on the rotation path of the glue suction sliding transmission part 7-3, and the glue suction drive extrusion surface includes a glue suction feeding section 9-1 and a glue suction holding section 9-2; in the non-glue suction driving state, the end face of the piston portion 7-1 of the glue suction rod 7 coincides with the outer circumferential surface of the glue coating wheel 3; when the glue suction sliding transmission part 7-3 of the glue suction rod 7 cooperates with the glue suction feeding section 9-1 of the glue suction drive extrusion surface, the piston hole 4 corresponding to the glue suction sliding transmission part 7-3 of the glue suction rod 7 is located at the arc-shaped glue taking notch of the glue storage box 1, and when the glue suction sliding transmission part 7-3 of the glue suction rod 7 cooperates with the glue suction holding section 9-2 of the glue suction drive extrusion surface, the piston hole 4 corresponding to the glue suction sliding transmission part 7-3 of the glue suction rod 7 is located between the arc-shaped glue taking notch of the glue storage box 1 and the supporting wheel 2.

[0047] Furthermore, a plurality of groups of hole structures are provided along the axial direction of the glue coating wheel 3 , and each group of hole structures includes a plurality of hole structures evenly arranged along the circumferential direction of the glue coating wheel 3 .

[0048] See also Figure 8The glue suction extrusion plate 9 is arranged on the glue storage box 1 via a structure that can adjust the distance between the glue suction extrusion plate 9 and the center of the glue coating wheel 3. Furthermore, the structure that can adjust the distance between the glue suction extrusion plate 9 and the center of the glue coating wheel 3 includes an oblong hole 9-3, a mounting rod 10, and a fastening nut 11. The oblong holes 9-3 are provided at least two and are arranged in parallel on the glue suction extrusion plate 9. The mounting rod 10 is provided at least two and is fixedly connected to the fastening nut 11 through different oblong holes 9-3. With this structure, the fastening nut 11 can be loosened to adjust the distance between the glue suction extrusion plate 9 and the center of the glue coating wheel 3, that is, to adjust the stroke of the piston portion 7-1 of the glue suction rod 7, thereby obtaining different glue suction amounts, adapting to different occasions, and having good flexibility.

[0049] See also Figure 1-Figure 7 The adhesive deposit box 1 is mounted on an adaptively adjustable structure comprising a fixed base 12, an adjusting screw 13, and an adaptive contact spring 14. The fixed base 12 is fixed to the frame. The tail end of the adjusting screw 13 is connected to the fixed base 12 via a threaded structure. The axis of the adjusting screw 13 extends horizontally and is perpendicular to the axis of the glue-applying wheel 3. The adhesive deposit box 1 is slidably mounted on the adjusting screw 13. The adaptive contact spring 14 is sleeved on the adjusting screw 13, with its ends respectively abutting against the head of the adjusting screw 13 and the adhesive deposit box 1. This structure allows the adaptive contact spring 14 to adaptively force the adhesive deposit box 1 to fit tightly against the glue-applying wheel 3, preventing glue leakage. Furthermore, rotating the adjusting screw 13 can adjust the contact strength between the adhesive deposit box 1 and the glue-applying wheel 3 to meet different needs.

[0050] See also Figure 3 The rotary drive mechanism includes a rotary drive motor 15 and a rotary transmission assembly, and the rotary transmission assembly is connected between the gluing wheel 3 and the rotary drive motor 15. Further, the rotary transmission assembly includes a sprocket 16 and a chain 17. There are four sprockets 16, of which three sprockets 16 are directly or indirectly connected to the rotary drive motor 15, the gluing wheel 3 and the support wheel 2 respectively, and the chain 17 is connected between the four sprockets 16.

[0051] Furthermore, the support wheel 2 is mounted on a spacing adjustment structure comprising an adjustment mounting plate 18, an adjustment rod 19, and an adjustment locking nut 20. One end of the adjustment mounting plate 18 is hinged to the frame, and the other end of the adjustment mounting plate 18 is hinged to one end of the adjustment rod 19. The other end of the adjustment rod 19 passes through a hinged seat provided on the frame and is connected to the adjustment locking nut 20. The support wheel 2 is rotatably connected to the adjustment mounting plate 18. Through the above structure, rotating the adjustment locking nut 20 can drive the adjustment rod 19 to move, thereby driving the support wheel 2 toward or away from the gluing wheel 3 via the adjustment mounting plate 18, which is suitable for corrugated paper of different thicknesses.

[0052] Furthermore, another sprocket 16 is provided on a tensioning adjustment structure, which includes a tensioning mounting plate 21, a tensioning rod 22, and a tensioning locking nut 23. One end of the tensioning mounting plate 21 is hinged to the frame, and the other end of the tensioning mounting plate 21 is hinged to one end of the tensioning rod 22. The other end of the tensioning rod 22 passes through a hinge seat provided on the frame and is connected to the tensioning locking nut 23. The other sprocket 16 is rotatably connected to the tensioning mounting plate 21. Through the above structure, after adjusting the distance between the support wheel 2 and the rubber coating wheel 3, the tensioning locking nut 23 is rotated in the corresponding direction to drive the tensioning rod 22 to move, and then the other sprocket 16 is driven to pull the chain 17 through the tensioning mounting plate 21, ensuring smooth power transmission.

[0053] See also Figure 1-Figure 2 An upper protective cover 24 is provided above the glue coating wheel 3, and lower protective covers 25 are provided on both sides of the supporting wheel 2. A glue collecting box 26 is provided below the lower protective cover 25.

[0054] See also Figure 1-Figure 7 The corrugated paper gluing method of this embodiment comprises the following steps:

[0055] First, glue is loaded into the glue box 1, and the outer circumference of the glue-applying wheel 3 is attached to the arc-shaped glue-taking notch, serving as the movable side of the glue box 1 so as to transfer the glue in the glue box 1 out.

[0056] The corrugated paper to be coated with glue is conveyed between the gluing wheel 3 and the supporting wheel 2 by the conveying mechanism, and the corrugated paper is supported by the supporting wheel 2 at this time.

[0057] The glue coating wheel 3 is driven by the rotary driving mechanism to move downward relative to the glue storage box 1, driving the glue suction rod 7 on the glue coating wheel 3 to approach the glue suction extrusion plate 9. When the glue suction sliding transmission part 7-3 of the glue suction rod 7 contacts the glue suction feeding section 9-1 of the glue suction driving extrusion surface, the piston hole 4 corresponding to the glue suction sliding transmission part 7-3 of the glue suction rod 7 is located at the arc-shaped glue taking notch of the glue storage box 1. The glue suction feeding section 9-1 of the glue suction driving extrusion surface will squeeze the glue suction rod 7 toward the center of the glue coating wheel 3, so that the glue suction sliding transmission part 7-3 of the glue suction rod 7 moves toward the center of the glue coating wheel 3 relative to the corresponding glue suction sliding transmission part 7-3. At the same time, the piston part 7-1 of the glue suction rod 7 retracts inward, thereby sucking the glue in the glue storage box 1 into the piston hole 4 corresponding to the piston part 7-1 of the glue suction rod 7. At this time, the power spring 8 undergoes compression deformation and stores energy.

[0058] When the glue sucking sliding transmission part 7-3 of the glue sucking rod 7 cooperates with the glue sucking holding section 9-2 of the glue sucking driving extrusion surface, the piston part 7-1 of the glue sucking rod 7 remains stationary and gradually approaches the corrugated paper to be glued and the support wheel 2.

[0059] When the glue sucking rod 7 approaches the corrugated paper to be coated with glue, the glue sucking extrusion plate 9 cancels the squeezing effect on the glue sucking rod 7, and the power spring 8 releases potential energy and recovers the deformation, driving the glue sucking rod 7 to move toward the center of the circle of the glue coating wheel 3, thereby pushing the glue in the piston hole 4 onto the corrugated paper below.

[0060] According to the above operation, the plurality of glue suction rods 7 transfer the glue in the glue storage box 1 to the corrugated paper in a cyclic manner.

[0061] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. An automatic gluing device for corrugated paper, comprising a glue box for storing glue, a gluing mechanism for taking glue from the glue box and transferring the glue to the corrugated paper, and support wheels for supporting the corrugated paper; characterized in that: A side surface of the glue storage box is provided with an arc-shaped glue removal notch; The glue-spreading mechanism includes a glue-spreading wheel, a glue-sucking assembly, and a rotary drive mechanism; the glue-spreading wheel is arranged on one side of the glue storage box, and the outer circumferential surface of the glue-spreading wheel cooperates with the arc-shaped glue-taking notch; a plurality of hole structures are opened on the glue-spreading wheel along the circumferential direction of the glue-spreading wheel, each hole structure includes a piston hole, a spring mounting hole, and a glue-sucking sliding hole, the piston hole and the spring mounting hole are located in the same radial direction, the piston hole is located at one end away from the center of the glue-spreading wheel, and the glue-sucking sliding holes are provided with two and are connected on both sides of the spring mounting hole; the rotary drive mechanism is dynamically connected to the glue-spreading wheel; the support wheel is located directly below the glue-spreading wheel; The glue suction assembly includes a glue suction rod, a power spring and a glue suction extrusion plate, and the number of the glue suction rods and the power springs is the same as the number of the hole structures; the glue suction rod includes a piston part, a spring mounting part and a glue suction sliding transmission part, and the piston part is fitted in the piston hole; the power spring is arranged in the spring mounting hole and sleeved on the spring mounting part, and the two ends of the power spring are respectively pressed against the bottom surface of the piston part and the spring mounting hole; one end of the glue suction sliding transmission part is fixed on the piston part, and the other end of the glue suction sliding transmission part passes through the glue suction sliding hole and extends to the outside of the side of the glue coating wheel; The glue suction extrusion plates are provided with two and are respectively arranged outside the two side surfaces of the glue coating wheel, and the two glue suction extrusion plates are both provided with glue suction drive extrusion surfaces located on the rotation path of the glue suction sliding transmission part, and the glue suction drive extrusion surface includes a glue suction feeding section and a glue suction holding section; in the non-glue suction driving state, the end face of the piston part of the glue suction rod coincides with the outer circumferential surface of the glue coating wheel; when the glue suction sliding transmission part of the glue suction rod cooperates with the glue suction feeding section of the glue suction drive extrusion surface, the piston hole corresponding to the glue suction sliding transmission part of the glue suction rod is located at the arc-shaped glue taking notch of the glue storage box; when the glue suction sliding transmission part of the glue suction rod cooperates with the glue suction holding section of the glue suction drive extrusion surface, the piston hole corresponding to the glue suction sliding transmission part of the glue suction rod is located between the arc-shaped glue taking notch of the glue storage box and the supporting wheel.

2. The automatic gluing device for corrugated paper according to claim 1, characterized in that: The glue deposit box is arranged on an adaptive adjustable structure, which includes a fixed seat, an adjusting screw and an adaptive fitting spring; the fixed seat is fixedly arranged on the frame; the tail of the adjusting screw is connected to the fixed seat through a threaded structure, and the axis of the adjusting screw extends horizontally and is perpendicular to the axis of the glue coating wheel; the glue deposit box is slidably arranged on the adjusting screw; the adaptive fitting spring is sleeved on the adjusting screw, and the two ends of the adaptive fitting spring are respectively pressed against the head of the adjusting screw and the glue deposit box.

3. The automatic gluing device for corrugated paper according to claim 1, characterized in that: A plurality of groups of hole structures are provided along the axis direction of the glue coating wheel, and each group of hole structures includes a plurality of hole structures evenly arranged along the circumferential direction of the glue coating wheel.

4. The automatic gluing device for corrugated paper according to claim 1, characterized in that: The glue sucking and squeezing plate is arranged on the glue storage box through a structure in which the distance between the plate and the center of the glue coating wheel can be adjusted.

5. The automatic gluing device for corrugated paper according to claim 4, characterized in that: The structure capable of adjusting the distance from the center of the glue coating wheel includes an oblong hole, a mounting rod and a fastening nut. There are at least two oblong holes arranged in parallel on the glue suction and extrusion plate. There are at least two mounting rods which pass through different oblong holes and are fixedly connected to the fastening nuts.

6. The automatic gluing device for corrugated paper according to claim 1, characterized in that: The rotary drive mechanism includes a rotary drive motor and a rotary transmission assembly, and the rotary transmission assembly is connected between the glue coating wheel and the rotary drive motor.

7. The automatic gluing device for corrugated paper according to claim 6, characterized in that: The rotary transmission assembly includes a sprocket and a chain. There are four sprockets, three of which are directly or indirectly connected to the rotation drive motor, the glue coating wheel and the support wheel respectively, and the chain is connected between the four sprockets.

8. The automatic gluing device for corrugated paper according to claim 7, characterized in that: The support wheel is arranged on the spacing adjustment structure, which includes an adjustment mounting plate, an adjustment rod and an adjustment locking nut. One end of the adjustment mounting plate is hinged to the frame, and the other end of the adjustment mounting plate is hinged to one end of the adjustment rod. The other end of the adjustment rod passes through a hinge seat set on the frame and is connected to the adjustment locking nut. The support wheel is rotatably connected to the adjustment mounting plate.

9. The automatic gluing device for corrugated paper according to claim 7, characterized in that: Another sprocket is arranged on the tensioning adjustment structure, which includes a tensioning mounting plate, a tensioning rod and a tensioning locking nut. One end of the tensioning mounting plate is hinged to the frame, and the other end of the tensioning mounting plate is hinged to one end of the tensioning rod. The other end of the tensioning rod passes through a hinge seat set on the frame and is connected to the tensioning locking nut. The other sprocket is rotatably connected to the tensioning mounting plate.

10. A gluing method applied to the automatic gluing device for corrugated paper according to any one of claims 1 to 9, characterized in that: The following steps are involved: Put glue into the glue box, and stick the outer surface of the glue-applying wheel to the arc-shaped glue-taking notch, which serves as the movable side of the glue box; The corrugated paper to be glued is transported between the gluing wheel and the supporting wheel through the conveying mechanism, and the corrugated paper is supported by the supporting wheel at this time; The glue-spreading wheel is driven by the rotary driving mechanism to rotate downward relative to the glue storage box, driving the glue-sucking rod on the glue-sucking wheel to approach the glue-sucking extrusion plate. When the glue-sucking sliding transmission part of the glue-sucking rod contacts the glue-sucking feeding section of the glue-sucking driving extrusion surface, the piston hole corresponding to the glue-sucking sliding transmission part of the glue-sucking rod is located at the arc-shaped glue-taking notch of the glue storage box, and the glue-sucking feeding section of the glue-sucking driving extrusion surface squeezes the glue-sucking rod toward the center of the glue-sucking wheel, so that the glue-sucking sliding transmission part of the glue-sucking rod moves toward the center of the glue-sucking wheel relative to the corresponding glue-sucking sliding transmission part. At the same time, the piston part of the glue-sucking rod retracts inward, sucking the glue in the glue storage box into the piston hole corresponding to the piston part of the glue-sucking rod. At this time, the power spring is compressed and deformed to store energy. When the glue sucking sliding transmission part of the glue sucking rod cooperates with the glue sucking holding section of the glue sucking driving extrusion surface, the piston part of the glue sucking rod remains stationary and gradually approaches the corrugated paper to be glued and the supporting wheel; When the glue sucking rod approaches the corrugated paper to be glued, the glue sucking extrusion plate cancels the squeezing effect on the glue sucking rod, and the power spring releases potential energy to restore the deformation, driving the glue sucking rod to move toward the center of the glue coating wheel, pushing the glue in the piston hole onto the corrugated paper below; According to the above operation, the plurality of glue suction rods transfer the glue in the glue storage box to the corrugated paper in a circular manner.

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