Automatic corrugated paper gluing device and method

Abstract

The invention discloses an automatic corrugated paper gluing device and method. The device comprises a glue storage box, a gluing mechanism and a supporting wheel. An arc-shaped glue taking notch is formed in one side surface of the glue storage box; the gluing mechanism comprises a gluing wheel, a glue suction assembly and a rotary driving mechanism; the glue coating wheel is arranged on one side of the glue storage box, and the outer circular surface of the glue coating wheel is matched with the arc-shaped glue taking notch; a plurality of hole structures are formed in the gluing wheel in the circumferential direction of the gluing wheel; the glue suction assembly comprises glue suction rods, power springs and a glue suction extrusion plate. The number of the glue suction rods and the number of the power springs are the same as the number of the hole structures. The glue suction extrusion plate is provided with a glue suction driving extrusion face located on the rotating path of the glue suction sliding transmission part, and the glue suction driving extrusion face comprises a glue suction feeding section and a glue suction maintaining section. According to the glue coating device, glue can be quantitatively coated on corrugated boards, the glue coating effect is stable and controllable, the amount of the glue can be adjusted, the glue coating device adapts to different occasions, and the flexibility is good.

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, laminating corrugated cardboard, etc.

[0003] Among them, gluing on the corrugated cardboard can adopt a cardboard upper surface gluing device disclosed in the utility model patent with authorization announcement number CN218838791U, for example. 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, the feeding channel and the 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, and the flexibility is poor. 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 quantitatively apply glue to the corrugated paperboard, the gluing effect is stable and controllable, 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 comprises 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 supporting wheel for supporting the corrugated paper;

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

[0012] The glue coating mechanism comprises a glue coating wheel, a glue suction component and a rotary drive mechanism; the glue coating wheel is arranged on one side of the glue storage box, and the outer cylindrical surface of the glue coating wheel cooperates with the arc-shaped glue taking notch; along the circumferential direction of the glue coating wheel, a plurality of hole structures are opened on the glue coating wheel, each hole structure comprises a piston hole, a spring mounting hole and a glue suction 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 coating wheel, and the glue suction sliding holes are provided with two and are connected at both sides of the spring mounting hole; the rotary drive mechanism realizes power connection with the glue coating wheel; the support wheel is located directly below the glue coating 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 rod and the power spring is the same as the number of the hole structure; the glue suction rod includes a piston part, a spring mounting part and a glue suction sliding transmission part, and the piston part is matched 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 two glue suction extrusion plates are respectively arranged outside the two side surfaces of the glue coating wheel, and the two glue suction extrusion plates are both provided with a glue suction driving extrusion surface located on the rotation path of the glue suction sliding transmission part, and the glue suction driving 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 driving 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, and when the glue suction sliding transmission part of the glue suction rod cooperates with the glue suction holding section of the glue suction driving 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] A preferred solution of the present invention is that the glue storage box is arranged on an adaptive adjustable structure, and the adaptive adjustable structure 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 storage 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 storage box. Through the above structure, on the one hand, the adaptive fitting spring can adaptively promote the glue storage box to fit tightly with the glue coating wheel to prevent glue from leaking out; on the other hand, rotating the adjusting screw can change the strength of the glue storage box and the glue coating wheel to meet different needs.

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

[0018] Furthermore, the structure capable of adjusting the distance from the center of the glue coating wheel comprises an oblong hole, a mounting rod and a fastening nut, wherein at least two oblong holes are provided and are arranged in parallel on the glue suction extrusion plate, and at least two mounting rods are provided and respectively pass through different oblong holes and are fixedly connected with the fastening nut. Through the above structure, the fastening nut can be loosened to adjust the distance between the glue suction extrusion plate and the center of the glue coating wheel, that is, to adjust the stroke of the piston part of the glue suction rod, so as to obtain different glue suction amounts, adapt to different occasions, and have good flexibility.

[0019] In a preferred embodiment of the present invention, the rotary drive mechanism comprises 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.

[0020] Furthermore, 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 rubber coating wheel and the support wheel respectively, and the chain is connected between the four sprockets.

[0021] Furthermore, the support wheel is arranged on a spacing adjustment structure, and the spacing adjustment structure includes an adjustment mounting plate, an adjustment rod and an adjustment locking nut. One end of the adjustment mounting plate is hinged on 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 arranged on the frame and is connected to the adjustment locking nut. The support wheel is rotatably connected to the adjustment mounting plate. Through the above structure, the adjustment locking nut can be rotated to drive the adjustment rod to move, and then the support wheel is driven to approach or move away from the glue coating wheel through the adjustment mounting plate, which is suitable for corrugated paper of different thicknesses.

[0022] Furthermore, another sprocket is arranged on the tension adjustment structure, and the tension adjustment structure includes a tension mounting plate, a tension rod and a tension locking nut. One end of the tension mounting plate is hinged on the frame, and the other end of the tension mounting plate is hinged to one end of the tension rod. The other end of the tension rod passes through a hinge seat arranged on the frame and is connected to the tension locking nut. The other sprocket is rotatably connected to the tension mounting plate. Through the above structure, after adjusting the distance between the support wheel and the rubber coating wheel, the tension locking nut is rotated in the corresponding direction to drive the tension rod to move, and then drive the other sprocket to pull the chain in through the tension mounting plate to ensure 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 storage box, and stick the outer circumference of the glue-applying wheel to the arc-shaped glue-taking notch to serve as the movable side of the glue storage box;

[0026] The corrugated paper to be coated with glue is conveyed between the glue coating wheel and the supporting wheel by the conveying mechanism, and the corrugated paper is supported by the supporting wheel at this time;

[0027] The glue coating wheel is driven by a rotary drive mechanism to rotate downward relative to the glue storage box, driving the glue suction rod on the glue coating wheel to approach the glue suction extrusion plate. When the glue suction sliding transmission part of the glue suction rod contacts the glue suction feeding section of the glue suction driving 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, and the glue suction feeding section of the glue suction driving extrusion surface squeezes the glue suction rod in the direction close to the center of the glue coating wheel, so that the glue suction sliding transmission part of the glue suction rod moves in the direction close to the center of the glue coating wheel relative to the corresponding glue suction sliding transmission part. At the same time, the piston part of the glue suction rod shrinks inward, sucking the glue in the glue storage box into the piston hole corresponding to the piston part of the glue suction rod, and 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 extrusion 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, a plurality of glue suction rods transfer the glue in the glue storage box to the corrugated paper in turn and in a cycle.

[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 the glue suction rod and the 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 It 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 It 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 assembly of the present invention.

[0039] Figure 6 It is a cross-sectional view of the glue coating wheel and the glue suction assembly 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 solution of the present invention, the present invention is 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 supporting 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 glue coating wheel 3, and the glue suction sliding hole 6 is provided with two and is 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 rod 7 and the power spring 8 is the same as the number of the hole structure; 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 matched in the piston hole 4; the power spring 8 is arranged in the spring mounting hole 5 and sleeved on the spring mounting part 7-2, and 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 part 7-1 of the glue suction rod 7 coincides with the outer cylindrical 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 8, the glue sucking and squeezing plate 9 is arranged on the glue storage box 1 through a structure that can adjust the distance between the glue sucking and squeezing plate 9 and the center of the glue coating wheel 3. Further, the structure that can adjust the distance between the glue sucking and squeezing 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, at least two oblong holes 9-3 are provided and are arranged in parallel on the glue sucking and squeezing plate 9, and at least two mounting rods 10 are provided and respectively pass through different oblong holes 9-3 and are fixedly connected with the fastening nut 11. Through the above structure, the fastening nut 11 can be loosened to adjust the distance between the glue sucking and squeezing plate 9 and the center of the glue coating wheel 3, that is, to adjust the stroke of the piston part 7-1 of the glue sucking rod 7, so as to obtain different glue sucking amounts, adapt to different occasions, and have good flexibility.

[0049] See also Figure 1-Figure 7 The glue storage box 1 is arranged on an adaptive adjustable structure, which includes a fixed seat 12, an adjusting screw 13 and an adaptive fitting spring 14; the fixed seat 12 is fixedly arranged on the frame; the tail of the adjusting screw 13 is connected to the fixed seat 12 through a threaded structure, and the axis of the adjusting screw 13 extends horizontally and is perpendicular to the axis of the glue coating wheel 3; the glue storage box 1 is slidably arranged on the adjusting screw 13; the adaptive fitting spring 14 is sleeved on the adjusting screw 13, and the two ends of the adaptive fitting spring 14 are respectively pressed against the head of the adjusting screw 13 and the glue storage box 1. Through the above structure, on the one hand, the adaptive fitting spring 14 can adaptively promote the glue storage box 1 to fit closely with the glue coating wheel 3 to prevent glue from leaking out; on the other hand, by rotating the adjusting screw 13, the strength of the glue storage box 1 and the glue coating wheel 3 can be changed 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 glue coating wheel 3 and the rotary drive motor 15. Further, the rotary transmission assembly includes a sprocket 16 and a chain 17, and the sprocket 16 is provided with four, wherein three sprockets 16 are respectively directly or indirectly connected to the rotary drive motor 15, the glue coating wheel 3 and the support wheel 2, and the chain 17 is connected between the four sprockets 16.

[0051] Further, the support wheel 2 is arranged on a spacing adjustment structure, and the spacing adjustment structure includes 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 on 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 hinge seat arranged 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, the adjustment locking nut 20 can be rotated to drive the adjustment rod 19 to move, and then the support wheel 2 is driven to approach or move away from the glue coating wheel 3 through the adjustment mounting plate 18, which is suitable for corrugated paper of different thicknesses.

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

[0053] See also Figure 1-Figure 2 An upper protective cover 24 is provided above the glue coating wheel 3 , lower protective covers 25 are provided on both sides of the supporting wheel 2 , and 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 storage box 1, and the outer circumferential surface of the glue coating wheel 3 is attached to the arc-shaped glue taking notch, serving as the movable side surface of the glue storage box 1, so as to transfer the glue in the glue storage box 1 out.

[0056] The corrugated paper to be coated with glue is conveyed between the glue coating 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 downward relative to the glue storage box 1 by the rotary driving mechanism, 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 in the direction close to 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 in the direction close to 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 shrinks 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 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 driving extrusion surface, the piston part 7-1 of the glue suction rod 7 remains stationary and gradually approaches the corrugated paper to be glued and the supporting 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 extrusion effect on the glue sucking rod 7, and the power spring 8 releases potential energy to restore 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 circular 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 equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An automatic gluing device for corrugated paper, comprising 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 supporting wheel for supporting the corrugated paper; characterized in that: A side surface of the glue storage box is provided with an arc-shaped glue taking notch; The glue coating mechanism comprises a glue coating wheel, a glue suction component and a rotary drive mechanism; the glue coating wheel is arranged on one side of the glue storage box, and the outer cylindrical surface of the glue coating wheel cooperates with the arc-shaped glue taking notch; along the circumferential direction of the glue coating wheel, a plurality of hole structures are opened on the glue coating wheel, each hole structure comprises a piston hole, a spring mounting hole and a glue suction 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 coating wheel, and the glue suction sliding holes are provided with two and are connected at both sides of the spring mounting hole; the rotary drive mechanism realizes power connection with the glue coating wheel; the support wheel is located directly below the glue coating 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 rod and the power spring is the same as the number of the hole structure; the glue suction rod includes a piston part, a spring mounting part and a glue suction sliding transmission part, and the piston part is matched 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 two glue suction extrusion plates are respectively arranged outside the two side surfaces of the glue coating wheel, and the two glue suction extrusion plates are both provided with a glue suction driving extrusion surface located on the rotation path of the glue suction sliding transmission part, and the glue suction driving 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 driving 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, and when the glue suction sliding transmission part of the glue suction rod cooperates with the glue suction holding section of the glue suction driving 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 storage 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 a 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 storage 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 storage box.

3. The automatic gluing device for corrugated paper according to claim 1, characterized in that: A plurality of groups of hole structures are arranged along the axial 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 comprises an oblong hole, a mounting rod and a fastening nut. The oblong holes are provided with at least two and are arranged in parallel on the glue suction and extrusion plate. The mounting rods are provided with at least two and are respectively passed through different oblong holes and fixedly connected with the fastening nuts.

6. The automatic gluing device for corrugated paper according to claim 1, characterized in that: The rotary drive mechanism comprises 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 comprises a sprocket and a chain. There are four sprockets, three of which are respectively directly or indirectly connected to the rotation drive motor, the rubber coating wheel and the supporting wheel, 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, and the spacing adjustment structure includes an adjustment mounting plate, an adjustment rod and an adjustment locking nut. One end of the adjustment mounting plate is hinged on 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 arranged 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 arranged 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 storage box, and stick the outer circumference of the glue-applying wheel to the arc-shaped glue-taking notch to serve as the movable side of the glue storage box; The corrugated paper to be coated with glue is conveyed between the glue coating wheel and the supporting wheel by the conveying mechanism, and the corrugated paper is supported by the supporting wheel at this time; The glue coating wheel is driven by a rotary drive mechanism to rotate downward relative to the glue storage box, driving the glue suction rod on the glue coating wheel to approach the glue suction extrusion plate. When the glue suction sliding transmission part of the glue suction rod contacts the glue suction feeding section of the glue suction driving 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, and the glue suction feeding section of the glue suction driving extrusion surface squeezes the glue suction rod in the direction close to the center of the glue coating wheel, so that the glue suction sliding transmission part of the glue suction rod moves in the direction close to the center of the glue coating wheel relative to the corresponding glue suction sliding transmission part. At the same time, the piston part of the glue suction rod shrinks inward, sucking the glue in the glue storage box into the piston hole corresponding to the piston part of the glue suction rod, and 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 extrusion 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, a plurality of glue suction rods transfer the glue in the glue storage box to the corrugated paper in turn and in a cycle.

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