Paperboard bonding device for corrugated carton production

Abstract

The invention discloses a paperboard bonding device for corrugated carton production, and relates to the technical field of corrugated carton processing. Comprising an unwinding device, a gluing device, a bonding mechanism and a curing bonding device, the unwinding device, the gluing device, the bonding mechanism and the curing bonding device are sequentially arranged in the bonding proceeding direction of corrugated boards, the gluing device comprises a main glue box, and a gluing roller is arranged at the top of the main glue box and obtains glue from the main glue box; the upper plate is in contact with the surface of the viscose roller when passing through the top of the viscose roller. Through the arrangement of the gluing device and the like, compared with a traditional paperboard gluing machine, the device is relatively simple in structure, complex pipelines and heating assemblies are not needed, the manufacturing cost and the purchasing cost of equipment are reduced, for numerous small corrugated carton manufacturers, the device has high cost performance, the economic cost can be reduced, and the production efficiency is improved. And the competitiveness of enterprises is improved.

Description

Technical Field

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

[0002] In the production process of corrugated paperboard, the bonding of paperboard is one of the key links. Corrugated paperboard is bonded by at least two layers of paperboard. In the traditional production process, a paperboard bonding machine is usually used to bond the corrugated paperboard, and a glue coating machine is inevitably used to apply glue through a nozzle or a glue coating nozzle. This requires the glue coating machine to have complex pipelines and heating components and extremely high automation capabilities. This is economically costly for many small corrugated paperboard manufacturers. Therefore, it is an urgent problem to develop a relatively low-cost and highly continuous corrugated paperboard bonding device. Summary of the invention

[0003] The object of the present invention is to provide a cardboard bonding device for producing corrugated paper boxes to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a cardboard bonding device for corrugated paperboard production, comprising: a reeling device, a gluing device, a bonding mechanism and a curing bonding device, wherein the reeling device, the gluing device, the bonding mechanism and the curing bonding device are sequentially arranged along the corrugated paperboard bonding direction;

[0005] The gluing device comprises a main glue tank, a glue roller is arranged on the top of the main glue tank, the glue roller obtains glue from the main glue tank, and the upper plate contacts the surface of the glue roller when passing over the top of the glue roller;

[0006] A lower glue tank connected to the main glue tank is arranged on one side of the main glue tank close to the bonding mechanism. A glue roller is arranged at the lower glue tank. The glue roller obtains glue from the lower glue tank. When the lower plate passes under the glue roller, it contacts the glue roller.

[0007] The bonding mechanism includes two side plates, between which two rolling rollers are rotatably installed. When the upper plate and the lower plate pass through the rolling rollers, the upper plate and the lower plate are tightly bonded due to the pressure exerted by the rolling rollers.

[0008] The gluing device is connected to the bonding mechanism through a synchronous driving member, and the synchronous driving member drives the gluing roller and one of the rolling rollers to roll simultaneously.

[0009] Furthermore, the top of the main glue tank is opened, and a receiving groove is formed in the middle of the main glue tank for holding glue, and the top surface of the main glue tank is in an arc shape that matches the surface of the glue roller, and side brackets are installed on both sides of the main glue tank, and the side brackets are in a right angle shape. A retaining roller is rotatably installed at the side bracket, and the surface of the retaining roller is in contact with the surface of the glue roller.

[0010] Furthermore, a glue roller is rotatably installed between the inner walls at both ends of the main glue tank accommodating groove, a part of the glue roller is exposed outside the glue, and the exposed part of the glue roller is in contact with the adhesive roller, the surface of the glue roller is provided with fluff, and a gap is provided between the surface of the adhesive roller and the main glue tank, and the gap width is between 1cm and 5cm.

[0011] Furthermore, side bracket plates are respectively installed at both ends of the main glue tank, and the synchronous driving component includes a traveling roller arranged between the two side bracket plates, the traveling roller is in interference contact with the bottom inner wall of the glue roller, and the rotation of the traveling roller drives the glue roller to rotate, and the connecting shaft of the traveling roller is rotatably installed between the two side bracket plates, and a driving source 1 is installed at one of the side bracket plates, and the driving source 1 is coaxially fixed with the connecting shaft of the traveling roller for driving the traveling roller.

[0012] Furthermore, limit plates are fixed on both sides of the traveling roller, and a circle of contacts is arranged on the side of the limit plate facing the adhesive roller, and the contacts just abut against the end surface of the adhesive roller to reduce friction with the adhesive roller.

[0013] Furthermore, the height of the side bracket plate is greater than the maximum height that the glue roller can reach, and a limiting roller is rotatably installed between the top ends of the side bracket plates, and a gap is provided between the limiting roller and the highest position of the glue roller, and the width of the gap should be at least less than the thickness of the upper plate;

[0014] A heating wire is arranged between the two side bracket plates. The heating wire is located inside the glue roller and is used to heat the glue roller. A heating rod is also arranged in the main glue tank to prevent the glue from solidifying.

[0015] Furthermore, the two ends of the lower glue tank are connected to the main glue tank through a connecting plate, and the connecting plate is used to connect the main glue tank and the lower glue tank. A glue roller is rotatably installed between the inner walls at both ends of the lower glue tank. A through groove is provided at the bottom of the lower glue tank. A gap is provided between the through groove of the lower glue tank and the glue roller, and the gap width is 1mm-2mm.

[0016] A channel is provided at the bottom of the main glue tank, and the channel runs through both sides of the main glue tank. The lower plate passes through the channel and then passes through the glue roller. A rotating roller is rotatably installed between the inner walls at both ends of the channel, and the lower plate passes under the rotating roller.

[0017] Furthermore, the bonding mechanism includes two side plates, two rolling rollers are rotatably mounted between the two side plates, and a fixing plate is fixed to each of the two side plates, and the other end of the fixing plate is connected to the lower glue box;

[0018] The synchronous driving member also includes a sprocket rotatably mounted on one side of one of the side plates, the sprocket is coaxially fixed with one of the rolling rollers, a sprocket is also fixed at the connecting shaft of the traveling roller, and the two sprockets are connected by a chain.

[0019] Furthermore, the curing and bonding device comprises two mounting brackets, between which two cooling rollers and a pressing roller are rotatably mounted, the plane formed by the axes of the two cooling rollers being connected is parallel to the horizontal plane, and the pressing roller is arranged above the two cooling rollers and the axis is located between the two cooling rollers;

[0020] Two gears 1 are also rotatably installed on the mounting bracket. The two gears 1 are coaxially fixed with the cooling drum. A gear 2 that rotates on the mounting bracket is also arranged between the two gears 1. The two gears 1 are respectively meshed with gear 2 on one side of gear 2. A driving source 2 is also installed on the mounting bracket corresponding to gear 2. The output end of the driving source 2 is coaxially fixed with gear 2 for driving gear 2.

[0021] Furthermore, the two cooling drums are hollow inside, the cooling drums are hollow inside and one end away from the second driving source is provided with a built-in bearing, a cushion block is provided on the outer ring surface of the built-in bearing, and the built-in bearing is connected to the inner wall of the cooling drum through the cushion block, a shaft is provided on the inner wall of the built-in bearing, a fan blade is provided on the shaft, the shaft passes through the bearing and is connected to a mounting bracket away from the second driving source, a driving source three is provided on the mounting bracket connected to the shaft, and the driving source three is coaxially fixed with the shaft;

[0022] A lifting member is provided on the top of the two mounting brackets. The lifting member includes a limit groove opened on the top of the mounting bracket. A lifting plate is slidably installed in the limit groove. The lifting plate moves up and down in the limit groove. A support bearing is provided in the middle of the lifting plate. The rotating shafts at both ends of the pressing roller are fixed to the inner wall of the support bearing. A handle screw is rotatably installed on the top of the lifting plate. The screw part of the handle screw is screwed to the top of the mounting bracket.

[0023] Among them, lifting parts are also arranged at the top of the two side plates to control the lifting and lowering of the rolling roller located above.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The cardboard gluing device for corrugated paper box production is provided with a gluing device, etc. Compared with the traditional cardboard gluing machine, the device has a relatively simple structure and does not require complicated pipelines and heating components, thereby reducing the manufacturing cost and procurement cost of the equipment. For many small corrugated paper box manufacturers, the device has a high cost-effectiveness, can reduce economic costs, and improve the competitiveness of enterprises;

[0026] At the same time, the structural design of the glue coating device makes it easy to maintain and replace each component. For example, the rotating parts of the roller, the heating wire, the driving source, etc. are exposed to the outside and can be directly contacted, which is convenient for inspection and maintenance, reducing the downtime and maintenance costs caused by equipment failure. At the same time, the reasonable structural design also reduces the wear and energy consumption of the equipment during operation, further reducing the production cost;

[0027] In addition, the operation of the entire device is relatively simple. The reasonable mechanical structure design reduces manual intervention, reduces the difficulty of operation and labor intensity. Operators can master the operating skills after simple training, which improves production efficiency and equipment utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the gluing device and the bonding mechanism of the present invention;

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the gluing device and the bonding mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the cooperation structure between the traveling roller and the gluing roller of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the curing and bonding device of the present invention;

[0033] Figure 6 For the present invention Figure 1 The enlarged structural diagram of part A in the middle;

[0034] Figure 7 It is a schematic diagram of the traveling process of the upper plate and the lower plate of the present invention.

[0035] In the figure: 1. Gluing device; 101. Main glue tank; 102. Side bracket plate; 103. Glue roller; 104. Limit roller; 105. Retention roller; 106. Side bracket; 107. Heating wire; 108. Travel roller; 1081. Limit plate; 1082. Contact; 109. Connecting shaft; 110. Driving source 1; 111. Lower glue tank; 112. Connecting plate; 113. Glue roller; 114. Channel; 115. Rotating roller; 116. Attached glue roller; 117. Pipeline; 2. Bonding mechanism; 201. Side plate; 202. Rolling roller; 203. Fixed plate; 3. Unwinding device; 4. Curing and bonding device; 401. Mounting bracket; 402. Limiting groove; 403. Lifting plate; 404. Support bearing; 405. Handle screw; 406. Pressing roller; 407. Cooling roller; 408. Fan blade; 409. Built-in bearing; 410. Gear 1; 411. Gear 2; 412. Drive source 2; 413. Drive source 3; 5. Sprocket; 6. Chain. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The production process of corrugated cardboard usually involves bonding corrugated core paper (hereinafter collectively referred to as upper board) and surface paper (hereinafter collectively referred to as lower board) to form single-sided corrugated paper, which is suitable for the production of common corrugated boxes.

[0038] like Figure 1 As shown, the present invention provides a technical solution: a cardboard bonding device for corrugated box production, comprising a reeling device 3, a gluing device 1, a bonding mechanism 2 and a curing bonding device 4, wherein the bonding device places an upper plate and a lower plate of the corrugated cardboard at the reeling device 3, and the upper plate and the lower plate pass through the gluing device 1 synchronously, and the bottom surface of the upper plate and the top surface of the lower plate are glued at the gluing device 1. After the gluing is completed, the upper plate and the lower plate are pressed at the bonding mechanism 2 to improve the bonding strength between the upper plate and the lower plate, and then pass through the curing bonding device 4 to accelerate the curing of the glue by cooling to improve the bonding strength and accelerate the bonding process.

[0039] like Figure 2 and Figure 3As shown, in order to ensure the smooth implementation of the above embodiment, it is necessary to understand that the gluing device 1 includes a main glue tank 101, and a glue roller 103 is arranged on the top of the main glue tank 101. The glue roller 103 obtains glue from the main glue tank 101, and the upper plate contacts the surface of the glue roller 103 when passing over the top of the glue roller 103, so that the glue is applied to the bottom surface of the upper plate. To achieve the above process, the top opening of the main glue tank 101 is set, and a receiving groove is formed in the middle of the main glue tank 101 for holding glue, and the top surface of the main glue tank 101 is in the same shape as the glue The surface of the glue roller 103 is adapted to the arc shape, and side brackets 106 are installed on both sides of the main glue tank 101. The side brackets 106 are at a right angle, and a retaining roller 105 is rotatably installed at the side brackets 106. The surface of the retaining roller 105 contacts the surface of the glue roller 103. That is to say, the retaining roller 105 can stably rotate on both sides of the glue roller 103, which can improve the rolling smoothness of the glue roller 103 and limit the glue roller 103, so as to prevent the glue roller 103 from leaving the main glue tank 101. A glue roller 116 is rotatably installed between the inner walls at both ends of the 01 receiving groove. The glue roller 116 is immersed in the glue, but a part of it is exposed outside the glue, and the glue roller 116 is in contact with the adhesive roller 103. That is to say, the glue roller 116 is constantly in contact with the glue during the rotation process and absorbs the glue on the surface. When it contacts the adhesive roller 103, the glue is transferred. It should be understood that the surface of the glue roller 116 is provided with fluff. When the glue roller 116 contacts the adhesive roller 103, the fluff can be more The contact area with the glue roller 103 is significantly increased and the fluff can absorb more glue. The friction between the glue roller 103 and the auxiliary glue roller 116 can also be appropriately increased, so that the glue roller 103 can rotate with the auxiliary glue roller 116 during the rotation to achieve continuous gluing, which can effectively increase the adhesion of the glue on the glue roller 103. A gap is set between the surface of the glue roller 103 and the main glue tank 101, and the gap width h is 1cm-5cm, which can avoid the problem of scratches caused by the contact between the glue roller 103 and the main glue tank 101 during the rotation.

[0040] like Figure 2 and Figure 3As shown, the gluing device 1 is connected to the bonding mechanism 2 through a synchronous driving member. In order to drive the glue roller 103, side bracket plates 102 are respectively installed at both ends of the main glue tank 101. The synchronous driving member includes a traveling roller 108 arranged between the side bracket plates 102. The traveling roller 108 is in contact with the bottom inner wall of the glue roller 103, and the surface of the traveling roller 108 is made of rubber material. There is an interference connection between the traveling roller 108 and the glue roller 103, which is used to increase the friction between the traveling roller 108 and the glue roller 103. When the traveling roller 108 rotates, under the effect of friction, the traveling roller 108 can drive the glue roller 103 to rotate. The connecting shaft 109 of the traveling roller 108 is rotatably installed between the two side bracket plates 102, and a driving source 110 is installed at one of the side bracket plates 102. The driving source 110 is coaxially fixed with the connecting shaft 109 of the traveling roller 108 to drive the traveling roller 108.

[0041] like Figure 4 As shown, in order to prevent the adhesive roller 103 from moving sideways along the axial direction of the traveling roller 108 during rolling, limiting plates 1081 are fixed on both sides of the traveling roller 108. A circle of contacts 1082 are arranged on the side of the limiting plate 1081 facing the adhesive roller 103. The contacts 1082 just abut against the end surface of the adhesive roller 103, which can effectively reduce the friction between the adhesive roller 103 and the limiting plate 1081. Through the setting of the limiting plate 1081, the two ends of the adhesive roller 103 can be effectively limited, and the rotation of the adhesive roller 103 is not affected while reducing the friction.

[0042] like Figure 4 As shown, what needs to be understood about the corrugated cardboard bonding device is that, since the upper plate passes over the top of the glue roller 103, a certain pressure needs to be applied to the upper plate when it passes through the glue roller 103 to ensure that the glue is in full contact with the upper plate. It should be known that the height of the side bracket plate 102 is greater than the maximum height that the glue roller 103 can reach, and a limiting roller 104 is rotatably installed between the top ends of the side bracket plates 102. A gap is set between the limiting roller 104 and the highest position of the glue roller 103. The width of the gap should be at least less than the thickness of the upper plate, and the thickness should be controlled between 1mm and 2mm. That is to say, the thickness of the upper plate minus the gap width between the limiting roller 104 and the glue roller 103 should be between 1mm and 2mm, so that the cardboard can pass through the gap by virtue of its own deformation characteristics, while avoiding excessive pressure on the upper plate, which causes excessive stagnation of the cardboard when passing through the gap.

[0043] like Figure 4As shown, at the same time, it should be understood that the diameter of the glue roller 103 is 30cm-80cm, that is, after the glue roller 103 is adhered with glue, in order to avoid the glue from being solidified to a certain extent before it comes into contact with the cardboard due to a long stroke, a heating wire 107 is arranged between the two side bracket plates 102, and the heating wire 107 is located on the inner side of the glue roller 103, and is used to heat the glue roller 103 to prevent the glue from solidifying under the effect of heat conduction. Therefore, it is obvious that the glue roller 103 should be made of a metal material with relatively good thermal conductivity, such as copper, iron or alloy. A heating rod is also arranged in the main glue tank 101 to prevent the glue from solidifying, and a pipeline 117 is arranged at the bottom to supply glue.

[0044] Replay Figure 2 and Figure 3 , in the process of gluing the upper plate, the lower plate is also glued at the same time, and a lower glue tank 111 is arranged on one side of the main glue tank 101 close to the bonding mechanism 2, and the two ends of the lower glue tank 111 are connected to the main glue tank 101 through a connecting plate 112, and the connecting plate 112 is also used to connect the main glue tank 101 and the lower glue tank 111, that is, the lower glue tank 111 is consistent with the glue liquid level in the main glue tank 101, and a glue roller 113 is rotatably installed between the inner walls at both ends of the lower glue tank 111, and the glue roller 113 passes through the bottom of the lower glue tank 111, that is, a through groove is opened at the bottom of the lower glue tank 111, a part of the glue roller 113 is immersed in the glue, and the other part is exposed outside the glue and is located below the lower glue tank 111. To ensure the adhesion of the glue, the lower A gap is provided between the through slot of the glue box 111 and the glue roller 113, the gap width is 1mm-2mm, and there is also fluff at the edge of the through slot to reduce the possibility of glue falling and increase the effect of glue coating on the surface of the glue roller 113. In this case, the cardboard can only be coated with glue on the lower plate if it passes under the glue roller 103 and the top surface of the lower plate passes through the glue roller 113. In this case, a channel 114 is provided at the bottom of the main glue box 101, and the channel 114 runs through both sides of the main glue box 101. After the lower plate passes through the channel 114, it passes through the glue roller 113 to coat the lower plate. In order to avoid scratches on the lower plate when passing through the channel 114, a rotating roller 115 is rotatably installed between the inner walls at both ends of the channel 114, and the lower plate passes under the rotating roller 115.

[0045] like Figure 2 and Figure 3As shown, after the upper plate and the lower plate are coated with glue, the upper plate and the lower plate need to be combined and bonded to form corrugated cardboard. To ensure the smooth implementation of this embodiment, it should be understood that the bonding mechanism 2 includes two side plates 201, and two upper and lower arranged rolling rollers 202 are rotatably installed between the two side plates 201. When the upper plate and the lower plate pass through the rolling rollers 202, the bottom surface of the upper plate and the top surface of the lower plate are attached to each other. After the pressure of the rolling rollers 202, the upper plate and the lower plate can be tightly combined to complete the combination of the upper plate and the lower plate. Fixed plates 203 are fixed at the two side plates 201, and the other end of the fixed plate 203 is connected to the lower glue box 111 to improve the stability of the device.

[0046] Replay Figure 1 and Figure 2 The synchronous driving part also includes a sprocket 5 rotatably installed on one side of one of the side plates 201. In order to drive one of the rolling rollers 202, the sprocket 5 is coaxially fixed with one of the rolling rollers 202. A sprocket 5 is also fixed on the connecting shaft 109 of the traveling roller 108. The two sprockets 5 are connected by a chain 6. When the traveling roller 108 rotates, the rolling roller 202 is synchronously driven to rotate, thereby driving the rolling roller 202.

[0047] Combination Figure 1 and Figure 5 After the upper plate is combined with the lower plate, the glue needs to be cooled and solidified to improve the bonding strength between the upper plate and the lower plate. In this case, a curing and bonding device 4 is arranged on the discharge side of the bonding mechanism 2. The curing and bonding device 4 includes two mounting brackets 401. Two cooling rollers 407 and a pressing roller 406 are rotatably mounted between the two mounting brackets 401. The plane formed by the axes of the two cooling rollers 407 is parallel to the horizontal plane. The pressing roller 406 is arranged above the two cooling rollers 407 and the axis is located between the two cooling rollers 407. It should be understood that one end of the cooling roller 407 is rotatably mounted on one of the mounting brackets 401. On the other side, two gears 1 410 are rotatably installed on the mounting bracket 401, and the two gears 1 410 are coaxially fixed with the cooling drum 407, that is, when the two gears 1 410 rotate, the two cooling drums 407 rotate, and a gear 2 411 rotating on the mounting bracket 401 is provided between the two gears 1 410, and the two gears 1 410 are respectively meshed with gear 2 411 on one side of the gear 2 411, and a driving source 2 412 is also installed on the mounting bracket 401 corresponding to the gear 2 411, and the output end of the driving source 2 412 is coaxially fixed with the gear 2 411 for driving the gear 2 411, and under the meshing effect, the two gears 2 411 rotate in the same direction.

[0048] In order to cool the glue, the two cooling rollers 407 are hollow inside, one end of the cooling roller 407 is sealed, and the other end is open, and the sealed end is connected to one end of the corresponding driving source 2 412, and the cooling roller 407 is hollow inside and is provided with a built-in bearing 409 at one end away from the driving source 2 412, and a pad is provided on the outer ring surface of the built-in bearing 409, which is connected to the inner wall of the cooling roller 407 through the pad. In other words, the cooling roller 407 can be connected to the external air, and the built-in bearing An axis rod is provided on the inner wall of 409, and a fan blade 408 is provided on the axis rod. The axis rod passes through a bearing and is connected to a mounting bracket 401 far away from a driving source two 412. A driving source three 413 is provided on the mounting bracket 401 connected to the axis rod. The driving source three 413 is coaxially fixed with the axis rod. When the driving source three 413 drives the fan blade 408 to rotate, the surface temperature of the cooling drum 407 can be reduced and the curing of the glue can be accelerated. In order to improve the cooling effect, holes can be opened on the surface of the cooling drum 407 to increase air flow.

[0049] like Figure 6 As shown, a lifting member is provided on the top of the two mounting brackets 401, and the lifting member includes a limiting groove 402 opened on the top of the mounting bracket 401, and a lifting plate 403 is slidably installed in the limiting groove 402, and the lifting plate 403 moves up and down in the limiting groove 402, and a support bearing 404 is provided in the middle of the lifting plate 403, and the rotating shafts at both ends of the pressing roller 406 are fixed to the inner wall of the support bearing 404, wherein a handle screw 405 is rotatably installed on the top of the lifting plate 403, and the screw part of the handle screw 405 is screwed to the top of the mounting bracket 401, that is, when the handle screw 405 is rotated, the lifting plate 403 moves up and down under the action of the threaded screw, thereby realizing the adjustment of the height of the pressing roller 406 and the pressing force on the cardboard.

[0050] like Figure 7 As shown, the cardboard bonding device for corrugated box production realizes the gluing, bonding and curing bonding process of the upper and lower plates of the corrugated cardboard through the coordinated cooperation of various components. The following is a description of the working process of the upper and lower plates from unwinding to gluing and bonding:

[0051] Place the upper and lower plates of the corrugated cardboard at the unwinding device 3 to prepare for the subsequent gluing operation;

[0052] When the upper plate passes over the top of the glue roller 103 of the glue coating device 1, it contacts the surface of the glue roller 103. The glue roller 103 obtains glue from the main glue tank 101. The glue roller 103 continuously contacts the glue during the rotation process and absorbs the glue on the surface. When it contacts the glue roller 103, the glue is transferred, so that the glue is adhered to the bottom surface of the upper plate.

[0053] After the lower plate passes through the channel 114 at the bottom of the main glue tank 101, its top surface passes through the glue roller 113 in the lower glue tank 111, so that the glue is adhered to the top surface of the lower plate;

[0054] After the upper plate and the lower plate are coated with glue, they are pressed at the bonding mechanism 2. When the upper plate and the lower plate pass through the rolling roller 202, the bottom surface of the upper plate and the top surface of the lower plate are attached to each other. Under the pressure of the rolling roller 202, the two are tightly combined to complete the bonding of the upper plate and the lower plate.

[0055] After the upper plate is combined with the lower plate, it enters the curing and bonding device 4 to cool and solidify the glue to improve the bonding strength between the upper plate and the lower plate. The curing and bonding device 4 drives the fan blades 408 to rotate through the driving source three 413, which can reduce the surface temperature of the cooling roller 407 and accelerate the curing of the glue. At the same time, the height of the pressing roller 406 can be adjusted through the lifting part to press the cardboard and further improve the bonding strength. After the above-mentioned cardboard bonding step, the combined upper plate and lower plate can be used for the processing of corrugated cardboard boxes after drying and cutting.

[0056] 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 limited by the attached embodiments and their equivalents.

Claims

1. A cardboard bonding device for corrugated box production, characterized in that: include: An unwinding device (3), a gluing device (1), a bonding mechanism (2) and a curing bonding device (4), wherein the unwinding device (3), the gluing device (1), the bonding mechanism (2) and the curing bonding device (4) are arranged in sequence along the corrugated cardboard bonding direction; The gluing device (1) comprises a main glue tank (101), a glue roller (103) is arranged on the top of the main glue tank (101), the glue roller (103) obtains glue from the main glue tank (101), and the upper plate contacts the surface of the glue roller (103) when passing over the top of the glue roller (103); A lower glue tank (111) connected to the main glue tank (101) is provided on one side of the main glue tank (101) close to the bonding mechanism (2); a glue roller (113) is provided at the lower glue tank (111); the glue roller (113) obtains glue from the lower glue tank (111); and the lower plate contacts the glue roller (113) when passing under the glue roller (113); The bonding mechanism (2) comprises two side plates (201), and two rolling rollers (202) are rotatably mounted between the two side plates (201). When the upper plate and the lower tail plate pass through the rolling rollers (202), the rolling rollers (202) apply pressure to tightly bond the upper plate and the lower plate. The gluing device (1) and the bonding mechanism (2) are connected via a synchronous driving member, and the synchronous driving member simultaneously drives the gluing roller (103) and one of the rolling rollers (202) to roll.

2. A cardboard bonding device for corrugated box production according to claim 1, characterized in that: The main glue box (101) is provided with an opening at the top, and a receiving groove for containing glue is formed in the middle of the main glue box (101), and the top surface of the main glue box (101) is in an arc shape adapted to the surface of the glue roller (103), and side brackets (106) are installed on both sides of the main glue box (101), and the side brackets (106) are in a right angle shape. A fixing roller (105) is rotatably installed at the side brackets (106), and the surface of the fixing roller (105) is in contact with the surface of the glue roller (103).

3. A cardboard bonding device for corrugated box production according to claim 1, characterized in that: A glue roller (116) is rotatably mounted between the inner walls at both ends of the receiving groove of the main glue box (101), a portion of the glue roller (116) is exposed outside the glue, and the exposed portion of the glue roller (116) is in contact with the adhesive roller (103), the surface of the glue roller (116) is provided with fluff, and a gap is provided between the surface of the adhesive roller (103) and the main glue box (101), and the width of the gap is between 1 cm and 5 cm.

4. A cardboard bonding device for corrugated box production according to claim 1, characterized in that: The two ends of the main glue tank (101) are respectively installed with side bracket plates (102), and the synchronous driving member includes a traveling roller (108) arranged between the two side bracket plates (102), the traveling roller (108) is in interference contact with the bottom inner wall of the adhesive roller (103), and the traveling roller (108) rotates to drive the adhesive roller (103) to rotate, and the connecting shaft (109) of the traveling roller (108) is rotatably installed between the two side bracket plates (102), and a driving source (110) is installed at one of the side bracket plates (102), and the driving source (110) is coaxially fixed with the connecting shaft (109) of the traveling roller (108) for driving the traveling roller (108).

5. A cardboard bonding device for corrugated box production according to claim 4, characterized in that: Limiting plates (1081) are fixed on both sides of the traveling roller (108); a circle of contacts (1082) is arranged on the side of the limiting plate (1081) facing the adhesive roller (103); the contacts (1082) just abut against the end surface of the adhesive roller (103) to reduce friction with the adhesive roller (103).

6. A cardboard bonding device for corrugated box production according to claim 4, characterized in that: The height of the side support plate (102) is greater than the maximum height that the adhesive roller (103) can reach, and a limiting roller (104) is rotatably installed between the top ends of the side support plate (102), and a gap is provided between the limiting roller (104) and the highest position of the adhesive roller (103), and the width of the gap should be at least less than the thickness of the upper plate; A heating wire (107) is provided between the two side support plates (102), and the heating wire (107) is located inside the glue roller (103) and is used to heat the glue roller (103). A heating rod is also provided in the main glue box (101) to prevent the glue from solidifying.

7. A cardboard bonding device for corrugated box production according to claim 1, characterized in that: The two ends of the lower glue tank (111) are connected to the main glue tank (101) through a connecting plate (112), and the connecting plate (112) is used to connect the main glue tank (101) and the lower glue tank (111). A glue roller (113) is rotatably installed between the inner walls at both ends of the lower glue tank (111). A through groove is provided at the bottom of the lower glue tank (111), and a gap is provided between the through groove of the lower glue tank (111) and the glue roller (113), and the gap width is 1mm-2mm; A channel (114) is provided at the bottom of the main glue box (101), and the channel (114) runs through both sides of the main glue box (101). The lower plate passes through the channel (114) and then passes through the glue roller (113). A rotating roller (115) is rotatably installed between the inner walls at both ends of the channel (114), and the lower plate passes under the rotating roller (115).

8. The cardboard bonding device for corrugated box production according to claim 1, characterized in that: The bonding mechanism (2) comprises two side plates (201), two rolling rollers (202) are rotatably mounted between the two side plates (201), and a fixing plate (203) is fixed to each of the two side plates (201), and the other end of the fixing plate (203) is connected to the lower glue box (111); The synchronous drive member also includes a sprocket (5) rotatably mounted on one side of one of the side plates (201), the sprocket (5) being coaxially fixed to one of the rolling rollers (202), and a sprocket (5) being also fixed on the connecting shaft (109) of the traveling roller (108), and the two sprockets (5) being connected via a chain (6).

9. A cardboard bonding device for corrugated box production according to claim 1, characterized in that: The curing and bonding device (4) comprises two mounting brackets (401), two cooling rollers (407) and a pressing roller (406) are rotatably mounted between the two mounting brackets (401), the plane formed by the axes of the two cooling rollers (407) being connected is parallel to the horizontal plane, and the pressing roller (406) is arranged above the two cooling rollers (407) and the axis is located between the two cooling rollers (407); Two gears 1 (410) are also rotatably mounted on the mounting bracket (401). The two gears 1 (410) are coaxially fixed to the cooling drum (407). A gear 2 (411) rotatably mounted on the mounting bracket (401) is provided between the two gears 1 (410). The two gears 1 (410) are respectively meshed with gear 2 (411) on one side of gear 2 (411). A driving source 2 (412) is also mounted on the mounting bracket (401) corresponding to gear 2 (411). The output end of the driving source 2 (412) is coaxially fixed to gear 2 (411) for driving gear 2 (411).

10. A cardboard bonding device for corrugated box production according to claim 9, characterized in that: The two cooling rollers (407) are hollow inside, and the cooling roller (407) is hollow inside and is provided with a built-in bearing (409) at one end away from the second driving source (412). A cushion block is provided on the outer ring surface of the built-in bearing (409), which is connected to the inner wall of the cooling roller (407) through the cushion block. A shaft is provided on the inner wall of the built-in bearing (409), and a fan blade (408) is provided on the shaft. The shaft passes through the bearing and is connected to a mounting bracket (401) away from the second driving source (412). A driving source three (413) is provided on the mounting bracket (401) connected to the shaft, and the driving source three (413) is coaxially fixed with the shaft; A lifting member is arranged at the top of the two mounting brackets (401), and the lifting member comprises a limiting groove (402) opened at the top of the mounting bracket (401), a lifting plate (403) is slidably installed in the limiting groove (402), and the lifting plate (403) moves up and down in the limiting groove (402), a support bearing (404) is arranged in the middle of the lifting plate (403), and the rotating shafts at both ends of the pressing roller (406) are fixed to the inner wall of the support bearing (404), wherein a handle screw (405) is rotatably installed at the top of the lifting plate (403), and the screw part of the handle screw (405) is screwed to the top of the mounting bracket (401); Wherein, lifting components are also arranged at the top of the two side plates (201) for controlling the lifting and lowering of the rolling roller (202) located above.

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