A corrugated cardboard gluing device for packaging boxes

Abstract

The invention discloses a corrugated paperboard gluing device for packaging boxes, and specifically relates to the field of corrugated paper processing. The device comprises a feeding mechanism, a pressing mechanism and a cutting mechanism. The feeding mechanism comprises a corrugated roller group and a round roller group rotatably connected to a gluing frame. There is at least one group of corrugated roller groups, and each group of corrugated roller groups comprises two matched embossing rollers with corrugated ring-shaped cross-sections. The embossing rollers are hollow inside, and a slide groove is arranged in a groove of the embossing roller. A gluing rod connected to the hollow part inside the embossing roller is slidably connected in the slide groove. The hollow part inside the embossing roller is connected to a glue supply cylinder. The corrugated roller group and the round roller group are connected by transmission through an adjusting mechanism. The embossing roller is arranged with a hollow structure inside and is connected to the glue supply cylinder. Gluing is performed on the embossed corrugated paper at the same time as embossing. Embossing and gluing are performed synchronously to improve processing efficiency.

Description

Technical Field

[0001] The invention relates to the field of corrugated paper processing, in particular to a corrugated paperboard gluing device for packaging boxes. Background Art

[0002] Corrugated paper packaging boxes have the advantages of heavy load-bearing capacity and light weight. They are widely used in express delivery and packaging transportation. They are formed by folding corrugated paper. During the processing of corrugated paper, multiple layers of paper are glued together to form cardboard. The paper layer in the middle is wavy, which can thicken the cardboard and improve the load-bearing strength of the cardboard. Corrugated paper with greater strength is formed by stacking more layers of paper. In the prior art, the processing technology of corrugated paper is preheating, embossing, gluing, drying, cutting, and stacking and storage.

[0003] At present, the processing technology of corrugated paper production line specifically includes the following steps: preheating: preheating the corrugated paper to control the moisture in the corrugated paper; pressing out corrugated paper: passing the preheated corrugated paper into the single-sided machine to press out corrugated paper; gluing and pressing: passing the corrugated paper into the gluing machine, which includes a gluing mechanism and a pressing mechanism, and a glue filling mechanism is arranged between the gluing mechanism and the pressing mechanism; drying: using the dryer to solidify the corrugated paper to make the corrugated paper and the boxboard paper more firmly bonded; cutting: cutting the corrugated paper into the required size through the cutting machine; palletizing: palletizing the cut corrugated paper through the palletizer, so as to facilitate the storage and transfer of multiple corrugated papers. The gluing equipment in the above process is also an independent equipment designed according to the processing technology, resulting in more processing procedures and affecting the processing efficiency. Summary of the invention

[0004] The object of the present invention is to provide a corrugated paperboard gluing device for packaging boxes to solve the technical problem of low processing efficiency of existing corrugated paperboards proposed in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A corrugated paperboard gluing device for packaging boxes comprises a feeding mechanism, a pressing mechanism and a cutting mechanism. The feeding mechanism comprises a corrugated roller group and a round roller group rotatably connected to a gluing frame. There is at least one corrugated roller group, and each corrugated roller group comprises two matched embossing rollers with corrugated ring-shaped cross-sections. The embossing rollers are hollow inside, and a slide groove is arranged in the groove of the embossing roller. A gluing rod connected to the hollow part inside the embossing roller is slidably connected in the slide groove. The hollow part inside the embossing roller is connected to a glue supply cylinder. The corrugated roller group and the round roller group are connected by transmission through an adjusting mechanism. The embossing roller is arranged with a hollow structure inside and is connected to the glue supply cylinder. Gluing is applied to the pressed corrugated paper while embossing. Embossing and gluing are performed synchronously to improve processing efficiency.

[0007] Preferably, the gluing rod is provided with a through hole, the outer side of the gluing rod is a concave arc surface engaged with the groove of the embossing roller, the gluing rod is slidably connected to the hollow glue groove inside the embossing roller, and a spring is provided in the glue groove to abut against the inner side of the gluing rod. When the gluing rod moves toward the inner end under pressure, the glue in the glue groove is squeezed out from the through hole and coated on the wave peaks of the corrugated paper.

[0008] Preferably, the inner hollow portion of the embossing roller is connected to the glue supply cylinder through a glue supply tube connected to one end of the embossing roller, the embossing tube is rotatably connected to the glue supply tube, and the other end of the embossing roller is connected to the adjustment mechanism.

[0009] Preferably, the adjustment mechanism includes a transmission shaft fixedly connected to one end of the embossing roller, the transmission shafts connected to the two pressing rollers in the same group are respectively connected to two meshing gears, the round roller group includes at least two groups of round roller groups arranged on both sides of the corrugating roller group, each group of round roller groups includes two matching conveying rollers, the ends of the conveying rollers in the same group are respectively connected to two meshing gears, the gears at the ends of the adjacent pressing rollers and conveying rollers are connected to the driving fan plate, the driving fan plate rotates in the fan cylinder, the two fan cylinders are respectively connected to the driving liquid pipes, the two driving liquid pipes are connected to the diversion chamber, the gears at the ends of the embossing roller and the conveying roller are driven by the fluid flowing in the driving liquid pipe, and the adjustment mechanism adopts a diversion method to control the flow rate to change the rotation speed of the embossing roller and the conveying roller, so that the supply rates of corrugated paper and flat paper are adapted.

[0010] Preferably, the diverter chamber is connected to a rotationally-connected adjusting rod, which is threadedly connected to a diverter plate in the diverter chamber. The position of the diverter plate in the diverter chamber is connected via the adjusting rod, and the adjusting rod is rotated to move the diverter plate to change the opening size and thus change the liquid supply ratio.

[0011] Preferably, the laminating mechanism comprises an upper laminating roller and a lower laminating roller rotatably connected to the gluing frame, the lower laminating roller is rotatably connected to an axle seat vertically slidably connected to the gluing frame, and a supporting spring is arranged between the axle seat and the gluing frame.

[0012] Preferably, the support spring is fixedly connected to the support plate at the bottom, the support plate is fixedly connected to the support screw threadedly connected to the gluing frame, the shaft seat and the gluing frame are connected through the support spring, and the length of the support spring is changed by rotating the support screw to provide appropriate pressing force.

[0013] Preferably, the lamination roller includes a roller shaft, which is located on the outside of the roller shaft and connected to a lamination sleeve through an elastic sheet. The elastic sheet and the lamination sleeve are both made of rubber. The lamination roller adopts a method of fixing the elastic sheet and the lamination sleeve on the outside of the roller shaft to avoid hard contact between the lamination roller and the paperboard, which causes the corrugated paper therein to be compressed and plastically deformed, affecting the thickness of the formed paperboard.

[0014] Preferably, the cutting mechanism includes a cutting frame connected to the left side of the pressing mechanism, the cutting frame is horizontally slidably connected to the tool holder, the tool holder is vertically slidably connected to the cutting blade, and a knife groove is arranged below the cutting blade. The cutting mechanism adopts the method of sliding the tool holder relative to the cutting frame, and can accurately cut without stopping the machine.

[0015] Preferably, the right end of the tool holder is connected to the cut-off frame via a tension spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The feeding mechanism of the present invention is provided with round roller groups located above and below the corrugating roller group. The corrugating roller group presses the flat paper conveyed into a corrugated shape. The round roller group is used to convey the flat paper on both sides. During the embossing, a gluing rod is provided on the corrugating roller in the corrugating roller group. The gluing rod is used to apply glue on the crest of the corrugated paper. The corrugated paper after gluing and the flat paper on both sides are pressed together by a pressing mechanism to form corrugated paper with corrugated shape in the middle.

[0018] 2. A hollow glue groove for storing glue is arranged inside the glue-spreading rod on the embossing roller of the present invention. The glue-spreading rod is slidably connected in the glue groove. During the embossing process, the glue-spreading rod in the groove of the embossing roller slides inwardly under the pressure of the convex pattern of the embossing roller matched with it, thereby squeezing the glue therein to be squeezed out from the through hole and coated on the wave crest of the corrugated paper;

[0019] 3. The round roller group and the embossing roller group of the present invention are connected by a transmission mechanism. The transmission mechanism is a diverter plate arranged in the diverter cavity. The position of the diverter plate is adjusted to control the liquid flow rate of the round roller group and the corrugating roller group, thereby controlling the speed ratio between the round roller group and the corrugating roller group, so that the supply rate of corrugated paper and flat paper is adapted;

[0020] 4. The laminating roller at the lower part of the laminating mechanism of the present invention is connected to the shaft seat, and the support plate connected to the shaft seat is slidably arranged on the gluing frame. The pressure of the support spring is changed by adjusting the support screw, thereby changing the laminating force;

[0021] 5. The cutting mechanism of the present invention adopts a mode that the cutting frame and the gluing frame slide horizontally, and the knife holder and the cutting frame slide vertically. When cutting, the cutting blade can move with the glued corrugated paper, and the corrugated paper can be cut without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 is a cross-sectional view of the embossing roller of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0026] Figure 5 is a cross-sectional view of the flow guide tube of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the pressing mechanism of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the truncation mechanism of the present invention;

[0029] In the figure: 1, gluing frame; 2, feeding mechanism; 21, lower round roller group; 22, upper round roller group; 23, corrugated roller group; 231, embossing roller; 2311, gluing rod; 2312, through hole; 2313, central axis; 2314, glue groove; 24, glue supply cylinder; 25, loading frame; 26, transmission mechanism; 261, transmission box; 262, gear; 263, guide tube; 2631, fan cylinder; 2632, driving fan Plate; 27, diverter chamber; 271, adjusting rod; 272, diverter plate; 273, liquid inlet; 274, liquid outlet; 3, pressing mechanism; 31, pressing frame; 32, pressing roller; 33, shaft seat; 34, supporting spring; 35, supporting plate; 36, fixing plate; 4, cutting mechanism; 41, cutting frame; 42, cylinder; 43, empty slot; 44, knife holder; 45, cutting blade; 46, tension spring; 47, knife groove. DETAILED DESCRIPTION

[0030] 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 the embodiments.

[0031] Example 1

[0032] like Figure 1-2As shown, a corrugated cardboard gluing device for packaging boxes includes a feeding mechanism, a pressing mechanism 3, and a cutting mechanism 4. The feeding mechanism includes a corrugated roller group 23 and a round roller group rotatably connected to the gluing frame 1. There is at least one group of corrugated roller groups 23. Each group of corrugated roller groups 23 includes two matched embossing rollers 231 with a corrugated ring cross section. The embossing roller 231 is hollow inside. A slide groove is arranged in the groove of the embossing roller 231. A glue coating rod 2311 connected to the hollow part inside the embossing roller 231 is slidably connected in the slide groove. The hollow part inside the embossing roller 231 is connected to the glue supply cylinder 24. The group 23 is connected to the round roller group through a transmission mechanism. A through hole 2312 is provided on the glue coating rod 2311. The outer side of the glue coating rod 2311 is a concave arc surface engaged with the groove of the embossing roller 231. The glue coating rod 2311 is slidably connected to the hollow glue groove 2314 inside the embossing roller 231. A spring that contacts the inner side of the glue coating rod 2311 is provided in the glue groove 2314. The hollow part inside the embossing roller 231 is connected to the glue supply cylinder 24 through a glue supply hose connected to one end of the embossing roller 231. The embossing hose is rotatably connected to the glue supply hose, and the other end of the embossing roller 231 is connected to the adjustment mechanism.

[0033] In the processing of corrugated paper, the flat paper used for both sides of the corrugated paper in the original paper material is fed by the round roller group in the feeding mechanism. Two groups of round roller groups are provided. The two groups of round roller groups include an upper round roller group 22 and a lower round roller group 21 arranged on the upper and lower sides of the corrugated roller group 23, which are used to process three-layer corrugated paper. The round roller group and the corrugated roller group 23 are rotatably connected to the feeding frame 25. The corrugated roller group 23 and the round roller group can also be increased according to the processing requirements. For example, when processing five-layer corrugated paper, another group of corrugated roller group 23 and round roller group are added above the feeding frame 25. According to the requirements, the corrugated roller group 23 includes two rotatably connected embossing rollers 231. The embossing roller 231 is a roller with a wavy surface. The two embossing rollers 231 is connected to the driving mechanism under the transmission of the transmission mechanism 26 to realize reverse rotation. During the rotation, the paper material passing through the two embossing rollers 231 is pressed into a wave shape. The gluing rod 2311 is slidably connected in the trough of the corrugation on the surface of the embossing roller 231. The upper rod of the gluing rod 2311 is provided with a through hole 2312 penetrating therethrough. The gluing rod 2311 slides in the glue groove 2314 inside the embossing roller 231. The glue groove 2314 is connected to the glue storage cylinder. The glue storage cylinder is sealed and rotatably connected with one end of the embossing roller 231. The glue storage cylinder can be connected to the booster mechanism to supply glue to the glue groove 2314 inside the embossing roller 231 at a certain rate. During the embossing process, the two embossing rollers 231 act on the glue. The original paper material is formed into corrugated folds, and the trough formed by the wavy paper material is located in the surface groove of the lower embossing roller 231 and is squeezed by the raised part of the upper embossing roller 231, so that the gluing rod 2311 sliding on the lower embossing roller 231 is squeezed to slide into the glue groove 2314 inside the lower embossing roller 231, and the gluing rod 2311 squeezes the glue in the glue groove 2314, so that the glue is squeezed out from the through hole 2312 and coated on the wave crest of the corrugated paper. A one-way valve is arranged at the connection between the glue storage cylinder and the embossing roller 231 to prevent the gluing rod 2311 in the glue groove 2314 from being backflowed by the pressure. The glue groove 2314 is the space between the central axis 2313 and the trough. While the upper embossing roller 231 squeezes the gluing rod 2311 connected to the lower embossing roller 231, the lower embossing roller 231 also squeezes the upper embossing roller 231, so that the corrugated paper can be glued on both sides. Embossing and gluing are carried out simultaneously. The targeted gluing method can improve processing efficiency and save glue. A spring is arranged in the glue groove 2314 between the gluing rod 2311 and the central axis 2313. When the embossing roller 231 continues to rotate until the gluing rod 2311 is no longer squeezed by the corresponding embossing roller 231, the gluing rod 2311 can slide outward from the glue groove 2314 to leave space in the glue groove 2314 for replenishing glue.

[0034] Example 2

[0035] like Figure 1-5As shown, a corrugated cardboard gluing device for packaging boxes includes a feeding mechanism, a pressing mechanism 3, and a cutting mechanism 4. The feeding mechanism includes a corrugated roller group 23 and a round roller group rotatably connected to the gluing frame 1. There is at least one group of corrugated roller groups 23. Each group of corrugated roller groups 23 includes two matched embossing rollers 231 with a corrugated ring cross section. The embossing roller 231 is hollow inside. A slide groove is arranged in the groove of the embossing roller 231. The slide groove is slidably connected with a hollow part connected to the hollow part of the embossing roller 231. The gluing rod 2311 is connected to the embossing roller 231, and the hollow part inside the embossing roller 231 is connected to the glue supply cylinder 24. The corrugated roller group 23 and the round roller group are connected by the adjusting mechanism. The gluing rod 2311 is provided with a through hole 2312. The outer side of the gluing rod 2311 is a concave arc surface engaged with the groove of the embossing roller 231. The gluing rod 2311 is slidably connected to the hollow glue groove 2314 inside the embossing roller 231. A spring is provided in the glue groove 2314 to abut against the inner side of the gluing rod 2311. The inner hollow part of the embossing roller 231 is connected to the glue supply cylinder 24 through the glue supply hose connected to one end of the embossing roller 231, the embossing hose is rotatably connected to the glue supply hose, and the other end of the embossing roller 231 is connected to the adjusting mechanism, the adjusting mechanism includes a transmission shaft fixedly connected to one end of the embossing roller 231, and the transmission shafts connected to the two pressing rollers 32 in the same group are respectively connected to two meshing gears 262, the round roller group includes at least two groups of round roller groups arranged on both sides of the corrugating roller group 23, each group of round roller groups includes two matching conveying rollers, and the ends of the conveying rollers in the same group are respectively connected to two meshing gears 262, the adjacent pressing rollers 32 and the conveying roller end gears 262 are connected to the driving fan plate 2632, and the driving fan plate 2632 rotates in the fan tube 2631, and the two fan tubes 2631 are respectively connected to the driving liquid pipes, and the two driving liquid pipes are connected to the diverter chamber 27, and the diverter chamber 27 is rotatably connected to the adjusting rod 271, and the adjusting rod 271 is threadedly connected to the diverter plate 272 in the diverter chamber 27.

[0036] The embossing roller 231 is connected to the opposite end of the glue storage cylinder and is coaxially fixedly connected to the gear 262. The gear 262 is in the transmission box 261. The gears 262 connected to the two embossing rollers 231 are meshed. When one of the gears 262 rotates, it can drive the other gear 262 to rotate in the opposite direction. The two embossing rollers 231 cooperate to emboss the original paper material. The outer side of the gear 262 of the embossing roller 231 is fixedly connected to the driving fan plate 2632. The driving fan plate 2632 is located in the fan cylinder 2631. The fan cylinder 2631 is connected to the diversion chamber 27 through the guide tube 263. The end of the round roller group is connected to the gear 262, and the outer side of the gear 262 is also connected to the fan plate. The driving fan plate 2632 is connected to the fan cylinder 2631 of the diversion chamber 27 through the guide tube 263. When the round roller group and the embossing roller 231 group are driven to rotate, the liquid inlet 273 and the liquid discharge port 274 are respectively connected to the output port and the input port of the hydraulic pump. The driving liquid is added to the liquid drive flow path. The driving fan plate 2632 is rotated during the flow of the fluid in the circuit driven by the hydraulic pump, and then the round roller group and the embossing roller 231 group are rotated. Figure 3As shown, the driving fan plate 2632 connected to the round roller group impacts the hydraulic fan plate from the left side, so the driving fan plate 2632 is connected to the roller end below the round roller group, so that the roller below rotates counterclockwise, and the roller above rotates clockwise accordingly, so that the paper is transported from right to left. The connection and operation mode of the lower round roller group 21 are the same as those of the upper round roller group 22. The guide tube 263 connected to the corrugated roller group 23 impacts the driving fan plate 2632 from the right side, so the driving fan plate 2632 is connected to the embossing roller 231 above the corrugated roller group 23. The end portion is rotated clockwise, and the corresponding embossing roller 231 below rotates counterclockwise to transport corrugated paper. The top ends of the two guide tubes 263 are connected to the diverter chamber 27, and are slidably connected to the diverter plate 272 in the diverter chamber 27. The diverter plate 272 slides in the diverter chamber 27 by rotating the adjusting rod 271 to change the local cross-sectional size of the two guide tubes 263, thereby changing the rotation speed ratio of the round roller group and the corrugating roller group 23. In the processing of corrugated paper, the feeding rate ratio of corrugated paper and flat paper is adjusted according to the process requirements.

[0037] Example 3

[0038] like Figure 1 , 6 As shown, a corrugated cardboard gluing device for packaging boxes includes a feeding mechanism, a pressing mechanism 3, and a cutting mechanism 4. The feeding mechanism includes a corrugated roller group 23 and a round roller group rotatably connected to the gluing frame 1. There is at least one group of corrugated roller groups 23. Each group of corrugated roller groups 23 includes two matched embossing rollers 231 with a corrugated ring cross section. The embossing roller 231 is hollow inside. A slide groove is arranged in the groove of the embossing roller 231. A glue coating rod 2311 connected to the hollow part inside the embossing roller 231 is slidably connected in the slide groove. The hollow part inside the embossing roller 231 is connected to the glue supply cylinder 24. The group 23 is connected to the round roller group through a transmission adjustment mechanism. The pressing mechanism 3 includes an upper pressing roller 32 and a lower pressing roller 32 which are rotatably connected to the gluing frame 1. The lower pressing roller 32 is rotatably connected to an axle seat 33 which is vertically slidably connected to the gluing frame 1. A supporting spring 34 is arranged between the axle seat 33 and the gluing frame 1. The support spring 34 is fixedly connected to a supporting plate 35 below. The supporting plate 35 is fixedly connected to a supporting screw which is threadedly connected to the gluing frame 1. The pressing roller 32 includes a roller shaft, which is located on the outer side of the roller shaft and connected to a pressing sleeve through an elastic sheet. The elastic sheet and the pressing sleeve are both made of rubber.

[0039] The flat paper material conveyed by the feeding mechanism is located on both sides of the corrugated paper material, and is pressed between the upper pressing roller 32 and the lower pressing roller 32 so that the flat paper material is attached to the crest of the corrugated paper material coated with glue. The upper pressing roller 32 and the lower pressing roller 32 in the pressing mechanism 3 are fixed in a normal state. When pressing corrugated paper of different thicknesses, the support screw is threadedly connected to the fixed plate 36. The support screw is rotated to lower the support plate 35 connected to the top of the support screw, so that the position of the shaft seat 33 is lowered. Conversely, when pressing thinner corrugated paper, the support thread is rotated to raise the shaft seat 33 to apply a certain pressure to the paper material. The pressing roller 32 is configured to have an elastic sheet connected to the pressing sleeve on the surface, which can have a certain buffering effect on the paper material while applying a certain pressure. The elastic sheet is not drawn in the figure to avoid causing plastic deformation of the corrugated paper to affect the thickness. The pressing roller 32 is rotatably connected to the pressing frame 31.

[0040] Example 4

[0041] like Figure 1 , 7 As shown, a corrugated cardboard gluing device for packaging boxes includes a feeding mechanism, a pressing mechanism 3, and a cutting mechanism 4. The feeding mechanism includes a corrugated roller group 23 and a round roller group rotatably connected to the gluing frame 1. There is at least one group of corrugated roller groups 23. Each group of corrugated roller groups 23 includes two matched embossed rollers 231 with a corrugated ring cross section. The embossed roller 231 is hollow inside. A slide groove is arranged in the groove of the embossed roller 231. The slide groove is slidably connected to the hollow inside of the embossed roller 231. The inner hollow part of the embossing roller 231 is connected to the glue supply cylinder 24, the corrugating roller group 23 and the round roller group are connected by an adjusting mechanism, and the cutting mechanism 4 includes a cutting frame 41 connected to the left side of the pressing mechanism 3, the cutting frame 41 is connected to the tool holder 44 for horizontal sliding, and the tool holder 44 is connected to the cutting blade 45 for vertical sliding. A knife groove 47 is arranged below the cutting blade 45, and the right end of the tool holder 44 is connected to the cutting frame 41 through a tension spring 46.

[0042] The pressed and formed corrugated paper is conveyed to the cutting mechanism 4, passes between the cutting blade 45 and the knife groove 47, and when the conveying speed is constant, the cutting blade 45 slides down regularly, that is, the knife holder 44 slides down relative to the cutting frame 41 under the drive of the cylinder 42, and the cutting tool and the knife groove 47 cooperate to cut the corrugated paperboard. Since the corrugated paper is continuously conveyed during the cutting process, in order to avoid affecting the conveying of the corrugated paper, the cutting knife holder 44 is set to be slidably connected with the gluing frame 1. When the corrugated paper is conveyed later, the cutting frame 41 slides relative to the gluing frame 1 under the thrust of the corrugated paper and stretches the tension spring 46, so that the cutting knife moves synchronously with the corrugated paper. After the cutting is completed, the cylinder 42 controls the cutting knife to rise, and the tension spring 46 controls the cutting frame 41 to reset. The tension spring 46 can be replaced by the cylinder 42. When the cutting knife falls, the cylinder 42 drives the cutting frame 41 to move synchronously with the corrugated paper, and the cutting knife holder 44 slides in the empty groove 43.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrugated cardboard gluing device for packaging boxes, Features: It includes a feeding mechanism, a pressing mechanism, and a cutting mechanism. The feeding mechanism includes a corrugated roller group and a round roller group rotatably connected to the gluing frame. There is at least one group of corrugated roller groups. Each group of corrugated roller groups includes two matched embossing rollers with a corrugated ring cross section. The embossing rollers are hollow inside. A slide groove is arranged in the groove of the embossing roller. A glue coating rod connected to the hollow part inside the embossing roller is slidably connected in the slide groove. The hollow part inside the embossing roller is connected to the glue supply cylinder. The corrugated roller group and the round roller group are connected by transmission through an adjusting mechanism. The glue-spreading rod is provided with a through hole, the outer side of the glue-spreading rod is a concave arc surface engaged with the groove of the embossing roller, the glue-spreading rod is slidably connected to the hollow glue groove inside the embossing roller, and a spring is arranged in the glue groove to abut against the inner side of the glue-spreading rod; The adjustment mechanism includes a transmission shaft fixedly connected to one end of the embossing roller, the transmission shafts connected to the two embossing rollers in the same group are respectively connected to two meshing gears, the round roller group includes an upper round roller group and a lower round roller group arranged on both sides of the corrugating roller group, the upper round roller group and the lower round roller group each include two matching conveying rollers, the ends of the conveying rollers in the same group are respectively connected to two meshing gears, the gears at the ends of the adjacent embossing rollers and conveying rollers are connected to a driving fan plate, the driving fan plate rotates in the fan cylinder, the two fan cylinders are respectively connected to driving liquid pipes, and the two driving liquid pipes are connected to the diversion chamber; The regulating rod is rotatably connected in the diverter cavity, and the regulating rod is threadedly connected to the diverter plate in the diverter cavity; the diverter plate slides in the diverter cavity by rotating the regulating rod, thereby changing the local cross-sectional size of the two guide pipes, and then changing the speed ratio of the round roller group and the corrugated roller group; The laminating mechanism comprises an upper laminating roller and a lower laminating roller rotatably connected to the laminating frame, the lower laminating roller is rotatably connected to a shaft seat vertically slidably connected to the laminating frame, and a supporting spring is arranged between the shaft seat and the laminating frame; The support spring is fixedly connected to the support plate at the bottom, and the support plate is fixedly connected to the support screw threadedly connected to the gluing frame; The upper pressing roller and the lower pressing roller both comprise a roller shaft, and a pressing sleeve is connected to the outer side of the roller shaft through an elastic sheet, and the elastic sheet and the pressing sleeve are both made of rubber.

2. A corrugated cardboard gluing device for packaging boxes according to claim 1, Features: The inner hollow part of the embossing roller is connected to the glue supply cylinder through a glue supply pipe connected to one end of the embossing roller. The embossing pipe is rotatably connected to the glue supply pipe. The other end of the embossing roller is connected to the adjusting mechanism.

3. A corrugated cardboard gluing device for packaging boxes according to claim 1, Features: The cutting mechanism comprises a cutting frame connected to the left side of the pressing mechanism, the cutting frame is horizontally slidably connected to the tool holder, the tool holder is vertically slidably connected to the cutting blade, and a blade groove is arranged below the cutting blade.

4. A corrugated cardboard gluing device for packaging boxes according to claim 3, Features: The right end of the tool holder is connected to the cut-off holder through a tension spring.

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