A glue coating machine and drying equipment for cardboard production

Abstract

The present invention provides a gluing machine for cardboard production and a drying device thereof, belonging to the technical field of gluing machines, comprising a frame, a moving table group being horizontally arranged on the top surface of the frame, and a first gluing mechanism and a second gluing mechanism being symmetrically arranged above the front and rear sides of the left end of the moving table group, a clamping mechanism being arranged on the bottom surface of the moving table group, and the upper end of the clamping mechanism extending to the outside of the top surface of the moving table group, forming a gluing machine for cardboard production, wherein the clamping mechanism on the gluing machine can be opened to support a corrugated folded cardboard, so that the corrugated folded cardboard will not be adhered after being glued, and the first gluing head and the second gluing head on each gluing end have a function of pushing and opening under the action of a tension spring, and can adaptively push and glue the two outer sides of the folding angle of the cardboard.

Description

Technical Field

[0001] The invention relates to a gluing machine for paperboard production and drying equipment thereof, belonging to the technical field of gluing machines. Background Art

[0002] In the cardboard production process, when some cardboards are folded into a wavy three-dimensional shape, it is necessary to apply glue to both sides of the wavy cardboard and glue the transverse plates to fix the shape, so that the wavy three-dimensional cardboard can be used as a base pad. Therefore, it is necessary to apply glue to the cardboard folded into the wavy shape at intervals. In actual operation, if a glue coating machine is used to apply glue in advance when the cardboard is flat, the glue will stick together during the cardboard folding operation. The advance gluing is not applicable. Therefore, manual gluing is required, but the manual gluing operation is troublesome, time-consuming and labor-intensive. In view of the above shortcomings, the present invention proposes a glue coating machine for cardboard production and a drying device thereof. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a gluing machine for paperboard production and a drying device thereof to solve the existing problems.

[0004] In order to achieve the above-mentioned object, the present invention is realized by the following technical scheme: a gluing machine for paperboard production, which structure includes a frame, and a moving table group is horizontally arranged on the top surface of the frame, and a first gluing mechanism and a second gluing mechanism are symmetrically arranged above the front and rear sides of the left end of the moving table group, and a clamping mechanism is arranged on the bottom surface of the moving table group, and the upper end of the clamping mechanism extends to the outside of the top surface of the moving table group;

[0005] The first gluing mechanism comprises a gluing support, and a telescopic assembly is transversely arranged on the front side of the gluing support, and a plurality of gluing ends are transversely arranged at intervals on the front side of the telescopic assembly, a glue tank group is arranged on the left side of the gluing support, and the other end of the glue tank group is extended and fixed to the top surface of the front side of the telescopic assembly through a soft rubber tube, and the other end of the glue tank group is connected to each gluing end, and the first gluing mechanism has the same structure as the second gluing mechanism;

[0006] Each glue coating end includes a glue coating hinge seat, and the left and right ends of the front side of the glue coating hinge seat are hinged with a first glue coating head and a second glue coating head, and a tension spring is hooked between the first glue coating head and the second glue coating head;

[0007] The clamping mechanism includes a longitudinal slide, and a first clamping head and a second clamping head are sleeved on the front and rear sides of the top face of the longitudinal slide. A bidirectional screw rod is longitudinally threadedly connected between the first clamping head and the second clamping head, and a motor is transmission-connected to the rear end of the bidirectional screw rod.

[0008] A further improvement is that a displacement opening is transversely opened in the middle of the top surface of the frame.

[0009] A further improvement is that the moving platform group includes two cross rails, and a plurality of sliders are movably mounted on the two cross rails, and a moving platform body is connected between each slider, and a plurality of first clamping head slides and a plurality of second clamping head slides are staggered and arranged at intervals on the front and rear sides of the top surface of the moving platform body, a plurality of first drying nozzle openings are arranged next to the rear end of each of the first clamping head slides, and a plurality of second drying nozzle openings are arranged next to the front end of each of the second clamping head slides.

[0010] A further improvement is that the telescopic assembly includes a telescopic cross frame, and multiple telescopes are longitudinally arranged on both sides of the rear end of the telescopic cross frame, and a screw adjustment piece is threadedly connected to the middle of the telescopic cross frame, a distance adjusting cross frame is transversely arranged on the front side of the screw adjustment piece, and multiple supporting slide rods are longitudinally arranged on the rear side of the distance adjusting cross frame, and the other end of each supporting slide rod passes through the telescopic cross frame.

[0011] A further improvement is that the first glue coating head includes a swing arm, and a glue coating roller group is vertically sleeved on the front side of the swing arm, and a glue coating brush head is sleeved on the middle part of the cylinder of the glue coating roller group, the glue coating brush head is tubular and made of sponge material, a movable bolt is sleeved on the rear end of the swing arm, a tension spring hook block is arranged on the right side of the swing arm, the upper end of the glue coating roller group is connected to a glue feed hose connected to the glue tank group, and the first glue coating head has the same structure as the second glue coating head.

[0012] A further improvement is that the glue coating roller group includes a roller body, and a glue coating brush head sleeve groove for mounting a glue coating brush head is opened around the cylinder of the roller body, and a glue inlet cavity is opened in the middle of the top surface of the roller body, and a plurality of glue outlet holes are opened in a circular array between the glue coating brush head sleeve groove and the glue inlet cavity, and a plurality of bearings are mounted at the upper and lower ends of the roller body.

[0013] As a further improvement, the first clamping head comprises a screw drag block, and a push beam is laterally arranged on the top surface of the screw drag block, and a plurality of clamping head members are vertically arranged at intervals on the top surface of the push beam, and the first clamping head has the same structure as the second clamping head.

[0014] As a further improvement, each of the clamping head parts comprises a vertical seat, and a positioning slider for sliding against each other in the first clamping head slideway is sleeved in the middle of the vertical seat, and a clamping rod is vertically arranged on the top surface of the vertical seat, and the clamping rod is in the shape of a triangular column.

[0015] As a further improvement, the glue tank assembly and the screw adjusting member are prior art, and their structures are not described one by one here.

[0016] As a further improvement, two gripping ends for grabbing the pallet and gluing the front and rear sides of the cardboard can be externally mounted on the front and rear sides of the right end of the frame.

[0017] A drying device, wherein a drying device is arranged on the bottom surface of the movable platform body, the drying device comprises a hanging rack, a lifter is arranged at the middle part of the lower end of the hanging rack, and a lifting plate is arranged on the top surface of the lifter, an air collecting box is arranged on the top surface of the lifting plate, a plurality of first drying nozzles and a plurality of second drying nozzles are vertically connected at intervals on the left and right sides of the top surface of the air collecting box, and the other end of the air collecting box is connected to a hot air generator through an air intake hose;

[0018] When the moving table group pulls the drying device to slide rightward in the displacement passage to the right end of the frame, it rises through the lifter, so that each first drying nozzle and each second drying nozzle rises one by one through each first drying nozzle through-hole and each second drying nozzle through-hole to perform preliminary drying on the glue coating of the cardboard opened and clamped at the upper end of the first clamping head and the second clamping head to increase the viscosity of the glue, and finally dry and fix the subsequent cardboard and cardboard after bonding.

[0019] A further improvement is that the hot air generator is a prior art and the structure is not described in detail here.

[0020] The beneficial effects of the invention are:

[0021] The present invention provides a gluing machine for paperboard production and a drying device thereof. The gluing machine for paperboard production is formed by a structural combination design of a moving table group, a first gluing mechanism, a second gluing mechanism and a clamping mechanism on a frame. The clamping mechanism on the gluing machine can be opened to support a corrugated folded paperboard, so that the corrugated folded paperboard will not be adhered after gluing. The first gluing head and the second gluing head on each gluing end have a function of pushing and opening under the action of a tension spring, and can be adaptively pushed to two outer side surfaces of the folding angle of the paperboard for gluing. When the first gluing mechanism and the second gluing mechanism are gluing, the clamping mechanism plays a role of auxiliary support for the inner side surface of the paperboard, and plays a role of guiding the opening angle of the first gluing head and the second gluing head when gluing, so that the opening angle between the first gluing head and the second gluing head can be adapted to the folding angle of the paperboard, so that the gluing end can gluing the paperboard more evenly, and there will be no problem of insufficient gluing. The problem of manual gluing is effectively solved, saving time and labor.

[0022] The drying device of the present invention is telescopically designed on the bottom surface of the movable platform body. When gluing the cardboard, each first drying nozzle and each second drying nozzle can be retracted to the bottom of the movable platform body, and will not interfere with the coordinated gluing operation between the clamping mechanism, the first gluing mechanism, and the second gluing mechanism. When the cardboard is to be bonded to the pallet after gluing, each first drying nozzle and each second drying nozzle can rise to the top of the movable platform body to perform preliminary drying on the glued part of the cardboard to increase the viscosity of the glue, and can also perform final drying and fixing on the cardboard after bonding to the pallet, so as to accelerate the air drying of the glue and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the top structure of a glue coating machine for paperboard production according to the present invention;

[0024] Figure 2 It is a schematic diagram of the top structure of the mobile station group of the present invention;

[0025] Figure 3 It is a schematic diagram of the top surface structure of the first gluing mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the top surface structure of the glue coating end of the present invention;

[0027] Figure 5 It is a right side view of the first glue coating head of the present invention;

[0028] Figure 6 This is a structural schematic diagram of the glue coating roller group of the present invention;

[0029] Figure 7 It is a schematic diagram of the top surface structure of the clamping mechanism of the present invention;

[0030] Figure 8 It is a right side view of the clamping member of the present invention;

[0031] Fig. 9 It is a right side view of the drying device of the present invention;

[0032] Fig.10 This is a diagram showing the connection effect of the paperboard and the pallet of the present invention. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] See also Figure 1-Figure 10The present invention provides a schematic diagram of a gluing machine for paperboard production and a technical solution of a drying device thereof: the structure includes a frame 1, and a moving platform group 2 is transversely arranged on the top surface of the frame 1, and a first gluing mechanism 3 and a second gluing mechanism 4 are symmetrically arranged above the front and rear sides of the left end of the moving platform group 2, a clamping mechanism 5 is arranged on the bottom surface of the moving platform group 2, and the upper end of the clamping mechanism 5 extends to the outside of the top surface of the moving platform group 2, the first gluing mechanism 3 includes a gluing support 31, and a telescopic component 32 is transversely arranged on the front side of the gluing support 31, and a plurality of gluing ends 33 are transversely arranged at intervals on the front side of the telescopic component 32, a glue tank group 34 is arranged on the left side of the glue support 31, and the other end of the glue tank group 34 is extended and fixed to the telescopic component through a soft rubber tube. The top surface of the front side of 32, and the other end of the glue tank group 34 is connected to each glue coating end 33, the first glue coating mechanism 3 and the second glue coating mechanism 4 have the same structure, each glue coating end 33 includes a glue coating hinge seat 331, and the left and right ends of the front side of the glue coating hinge seat 331 are hinged with a first glue coating head 332 and a second glue coating head 333, a tension spring 334 is hooked between the first glue coating head 332 and the second glue coating head 333, the clamping mechanism 5 includes a longitudinal slide seat 51, and the front and rear sides of the top of the longitudinal slide seat 51 are sleeved with a first clamping head 52 and a second clamping head 53, a bidirectional screw rod 54 is longitudinally threadedly connected between the first clamping head 52 and the second clamping head 53, and the rear end of the bidirectional screw rod 54 is transmission connected to a motor 55.

[0035] A displacement opening 11 is transversely opened in the middle of the top surface of the frame 1 .

[0036] The movable platform group 2 comprises two transverse rails 21, and a plurality of sliders 22 are movably mounted on the two transverse rails 21, and a movable platform body 23 is connected between each slider 22, and a plurality of first clamping head slideways 24 and a plurality of second clamping head slideways 25 are staggeredly provided at intervals on the front and rear sides of the top surface of the movable platform body 23, a plurality of first drying nozzle openings 26 are provided next to the rear end of each of the first clamping head slideways 24, and a plurality of second drying nozzle openings 27 are provided next to the front end of each of the second clamping head slideways 25.

[0037] The telescopic assembly 32 includes a telescopic cross frame 321, and a plurality of telescoping devices 322 are longitudinally arranged on both sides of the rear end of the telescopic cross frame 321, and a screw adjusting member 323 is threadedly connected to the middle of the telescopic cross frame 321, and a distance adjusting cross frame 324 is transversely arranged on the front side of the screw adjusting member 323, and a plurality of supporting slide rods 325 are longitudinally arranged at intervals on the rear side of the distance adjusting cross frame 324, and the other end of each supporting slide rod 325 passes through the telescopic cross frame 321.

[0038] The first glue coating head 332 includes a swing arm 3321, and a glue coating roller group 3322 is vertically sleeved on the front side of the swing arm 3321, and a glue coating brush head 3323 is sleeved in the middle of the cylinder of the glue coating roller group 3322. The glue coating brush head 3323 is tubular and made of sponge. A movable bolt 3324 is sleeved on the rear end of the swing arm 3321, and a tension spring hook block 3325 is provided on the right side of the swing arm 3321. The upper end of the glue coating roller group 3322 is connected to a glue feed hose 3326 connected to the glue tank group 34. The first glue coating head 332 has the same structure as the second glue coating head 333.

[0039] The glue coating roller group 3322 includes a roller body 33221, and a glue coating brush head sleeve groove 32222 for mounting a glue coating brush head 3323 is provided around the circumference of the roller body 33221, and a glue inlet cavity 33223 is provided in the middle of the top surface of the roller body 33221, and a plurality of glue outlet holes 33224 are provided in a circular array between the glue coating brush head sleeve groove 32222 and the glue inlet cavity 33223, and a plurality of bearings 33225 are provided at the upper and lower ends of the roller body 33221.

[0040] The first clamping head 52 includes a screw drag block 521 , and a push beam 522 is transversely arranged on the top surface of the screw drag block 521 , and a plurality of clamping members 523 are vertically arranged at intervals on the top surface of the push beam 522 . The first clamping head 52 and the second clamping head 53 have the same structure.

[0041] Each of the clamping head components 523 includes a vertical seat 5231 , and a positioning slider 5232 for sliding against each other in the first clamping head slideway 24 is sleeved in the middle of the vertical seat 5231 , and a clamping rod 5233 is vertically arranged on the top surface of the vertical seat 5231 , and the clamping rod 5233 is in the shape of a triangular column.

[0042] A drying device 6 is provided on the bottom surface of the movable platform body 23, and the drying device 6 includes a hanging rack 61, and a lifter 62 is provided in the middle of the lower end of the hanging rack 61, and a lifting plate 63 is provided on the top surface of the lifter 62, and an air collecting box 64 is provided on the top surface of the lifting plate 63, and a plurality of first drying nozzles 65 and a plurality of second drying nozzles 66 are vertically connected to the left and right sides of the top surface of the air collecting box 64 at intervals, and the other end of the air collecting box 64 is connected to a hot air generator 67 through an air intake hose. When the movable platform group 2 pulls the drying device 6 to slide rightward in the displacement opening 11 to the right end of the frame 1, it rises through the lifter 62, so that each first drying nozzle 65 and each second drying nozzle 66 rise one by one and pass through each first drying nozzle through-hole 26 and each second drying nozzle through-hole 27 to perform preliminary drying on the glue coating of the cardboard a1 opened and clamped at the upper ends of the first clamping head 52 and the second clamping head 53 to increase the viscosity of the glue, and finally dry and fix the subsequent cardboard a2 and cardboard a1 after bonding.

[0043] Working principle:

[0044] First, the folded cardboard a1 is put between the first clamping head 52 and the second clamping head 53 in the middle of the top surface of the moving platform body 23, and then the motor 55 drives the bidirectional screw rod 54 to rotate, so that the first clamping head 52 and the second clamping head 53 slide in opposite directions on the longitudinal slide 51, and the clamping head members 523 on the first clamping head 52 and the second clamping head 53 are opened synchronously, so that the clamping rods 5233 support and fix the inner side surfaces of the folding angles on the front and rear sides of the cardboard a1, and then the first gluing mechanism 3 and the second gluing mechanism 4 are synchronously extended toward the cardboard a1 for gluing. When gluing, they are extended through the telescopic device 322 and driven by the telescopic assembly 32. The gluing end 33 moves toward the cardboard a1. When the gluing brush head 3323 abuts against the outer side surface of the folding angle of the cardboard a1, the clamping rod 5233 is in the shape of a triangular column and abuts against the inner side surfaces of each folding angle of the cardboard a1, so that the first gluing head 332 and the second gluing head 333 are pushed and moved on the gluing hinge seat 331 to open and apply glue. During this process, the gluing brush head 3323 will be forced to apply glue along the two outer side surfaces of the folding angle of the cardboard a1. After the gluing is completed, each gluing end 33 retracts and resets. When the gluing end 33 retracts, the first gluing head 332 and the second gluing head 333 are opened and closed under the action of the tension spring 334.

[0045] Then the moving table group 2 pulls the drying device 6 to slide rightward in the displacement opening 11 to the right end of the frame 1, and then rises through the lifter 62, so that each first drying nozzle 65 and each second drying nozzle 66 rise one by one through each first drying nozzle through-hole 26 and each second drying nozzle through-hole 27 to preliminarily dry the glue coating of the cardboard a1 opened and clamped by the first clamping head 52 and the second clamping head 53 to increase the viscosity of the glue, and then the two gripping ends installed on the front and rear sides of the right end of the frame 1 are used to grab the glue coating on the front and rear sides of the cardboard a1 with the cardboard a2. The cardboard a2 and the cardboard a1 are glued and fixed at the places where they are glued, or the glued places on the front and back sides of the cardboard a1 are manually picked up for gluing and fixing. Then, each first drying nozzle 65 and each second drying nozzle 66 blow hot air again to finally dry and fix the bonding places between the cardboard a2 and the cardboard a1. Then, the lifter 62 on the drying device 6 descends, driving each first drying nozzle 65 and each second drying nozzle 66 to descend and return to their positions. Then, the first clamping head 52 and the second clamping head 53 retract and return to their positions. Finally, the cardboard a1 and the cardboard a2 after gluing and bonding are taken out.

[0046] It should also be noted that due to the different width specifications of the cardboard a1 after wave-shaped folding, it is necessary to adapt and adjust the opening spacing of the first clamping head 52 and the second clamping head 53 on the clamping mechanism 5, which can be directly adapted and adjusted by the number of rotations of the motor 55, and the extension distance of the gluing end 33 on the first gluing mechanism 3 and the second gluing mechanism 4 toward the cardboard a1 also needs to be adapted and adjusted, which is adjusted through the screw adjustment piece 323 on the telescopic assembly 32, so there is no need to adjust the extension stroke of the telescope 322.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gluing machine for cardboard production, characterized in that: The structure comprises a frame (1), wherein a moving platform group (2) is transversely arranged on the top surface of the frame (1), and a first gluing mechanism (3) and a second gluing mechanism (4) are symmetrically arranged above the front and rear sides of the left end of the moving platform group (2), and a material clamping mechanism (5) is arranged on the bottom surface of the moving platform group (2), and the upper end of the material clamping mechanism (5) extends outside the top surface of the moving platform group (2); The first glue coating mechanism (3) comprises a glue coating support (31), a telescopic assembly (32) is transversely arranged on the front side of the glue coating support (31), and a plurality of glue coating ends (33) are transversely arranged at intervals on the front side of the telescopic assembly (32), a glue tank group (34) is arranged on the left side of the glue coating support (31), and the other end of the glue tank group (34) is extended and fixed to the top surface of the front side of the telescopic assembly (32) through a soft rubber tube, and the other end of the glue tank group (34) is connected to each glue coating end (33), and the first glue coating mechanism (3) and the second glue coating mechanism (4) have the same structure; Each glue coating end (33) comprises a glue coating hinge seat (331), and a first glue coating head (332) and a second glue coating head (333) are hingedly connected at the left and right ends of the front side of the glue coating hinge seat (331), and a tension spring (334) is hooked between the first glue coating head (332) and the second glue coating head (333); The clamping mechanism (5) comprises a longitudinal slide (51), and a first clamping head (52) and a second clamping head (53) are sleeved on the front and rear sides of the top of the longitudinal slide (51), a bidirectional screw rod (54) is longitudinally threadedly connected between the first clamping head (52) and the second clamping head (53), and a motor (55) is transmission-connected at the rear end of the bidirectional screw rod (54); The movable platform group (2) comprises two transverse rails (21), and a plurality of sliders (22) are movably sleeved on the two transverse rails (21), and a movable platform body (23) is connected between each slider (22), and a plurality of first material clamping head slideways (24) and a plurality of second material clamping head slideways (25) are staggeredly provided at intervals on both sides of the top surface of the movable platform body (23), and a plurality of first drying nozzle openings (26) are provided next to the rear end of each first material clamping head slideway (24), and a plurality of second drying nozzle openings (27) are provided next to the front end of each second material clamping head slideway (25); The first material clamping head (52) comprises a screw drag block (521), a top surface of the screw drag block (521) is laterally provided with a push beam (522), and a plurality of clamping head members (523) are vertically provided at intervals on the top surface of the push beam (522), and the first material clamping head (52) and the second material clamping head (53) have the same structure; Each of the clamping head components (523) comprises a vertical seat (5231), and a positioning slider (5232) is sleeved in the middle of the vertical seat (5231) for moving and sliding in the first clamping head slideway (24), and a clamping rod (5233) is vertically arranged on the top surface of the vertical seat (5231), and the clamping rod (5233) is in the shape of a triangular column, and each clamping rod (5233) supports and fixes the inner side surfaces of each folding angle on the front and rear sides of the paperboard (a1); The bottom surface of the movable platform body (23) is provided with a drying device (6), the drying device (6) comprises a hanging rack (61), a lifter (62) is provided at the middle of the lower end of the hanging rack (61), and a lifting plate (63) is provided on the top surface of the lifter (62), an air collecting box (64) is provided on the top surface of the lifting plate (63), a plurality of first drying nozzles (65) and a plurality of second drying nozzles (66) are vertically spaced and connected to the left and right sides of the top surface of the air collecting box (64), and the other end of the air collecting box (64) is connected to a hot air generator (67) via an air intake hose; When the moving platform group (2) pulls the drying device (6) to slide rightward in the displacement opening (11) to the right end of the frame (1), the lifting device (62) rises, so that each first drying nozzle (65) and each second drying nozzle (66) rise one by one through each first drying nozzle through-hole (26) and each second drying nozzle through-hole (27) to perform preliminary drying on the glue coating part of the cardboard (a1) opened and clamped by the upper end of the first clamping head (52) and the second clamping head (53) to increase the viscosity of the glue, and finally dry and fix the subsequent cardboard (a2) and the cardboard (a1) after being bonded; A displacement opening (11) is transversely provided in the middle of the top surface of the frame (1).

2. A gluing machine for cardboard production according to claim 1, characterized in that: The telescopic assembly (32) comprises a telescopic cross frame (321), and a plurality of telescoping devices (322) are longitudinally arranged on both sides of the rear end of the telescopic cross frame (321), and a screw adjusting member (323) is threadedly connected to the middle of the telescopic cross frame (321), a distance adjusting cross frame (324) is transversely arranged on the front side of the screw adjusting member (323), and a plurality of supporting slide bars (325) are longitudinally arranged at intervals on the rear side of the distance adjusting cross frame (324), and the other end of each supporting slide bar (325) passes through the telescopic cross frame (321).

3. A gluing machine for cardboard production according to claim 2, characterized in that: The first glue coating head (332) comprises a swing arm (3321), and a glue coating roller group (3322) is vertically sleeved on the front side of the swing arm (3321), and a glue coating brush head (3323) is sleeved on the middle part of the cylinder body of the glue coating roller group (3322), and the glue coating brush head (3323) is tubular and made of sponge material. A movable bolt (3324) is sleeved on the rear end of the swing arm (3321), and a tension spring hook block (3325) is arranged on the right side of the swing arm (3321). The upper end of the glue coating roller group (3322) is connected to a glue feeding hose (3326) which is in communication with the glue tank group (34), and the first glue coating head (332) and the second glue coating head (333) have the same structure.

4. A gluing machine for cardboard production according to claim 3, characterized in that: The glue coating roller group (3322) comprises a roller body (33221), and a glue coating brush head sleeve groove (32222) for sleeve mounting of a glue coating brush head (3323) is provided around the roller body (33221), and a glue inlet cavity (33223) is provided in the middle of the top surface of the roller body (33221), and a plurality of glue outlet holes (33224) are provided in a circular array between the glue coating brush head sleeve groove (32222) and the glue inlet cavity (33223), and a plurality of bearings (33225) are sleeved at the upper and lower ends of the roller body (33221).

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