A high-efficiency gluing equipment for multi-layer corrugated paper

Abstract

This invention discloses a high-efficiency gluing device for multi-layer corrugated paper, belonging to the technical field of corrugated paper gluing production equipment. It includes a frame, a roller assembly, and a gluing assembly. The roller assembly and the gluing assembly are installed in the middle of the frame, with the roller assembly located to the left of the gluing assembly. The roller assembly includes three smooth rollers and two corrugated rollers arranged in an alternating pattern. Three smooth auxiliary rollers and two corrugated auxiliary rollers, which cooperate with the smooth and corrugated rollers, are rotatably mounted in the frame. The roller assembly includes a smooth roller for pushing the facing paper and a corrugated roller for pushing the corrugated paper. Both the smooth roller and the corrugated roller have matching auxiliary rollers, which can press the facing paper and corrugated paper together and push them stably to the right to prevent slippage. Furthermore, the rollers of the roller assembly are driven by gear meshing to ensure synchronous rotation during pushing, ensuring uniform feeding speed and preventing curling, folding, or taut deformation.

Description

Technical Field

[0001] This invention relates to the field of gluing production equipment technology, and in particular to a high-efficiency gluing equipment for multi-layer corrugated paper. Background Technology

[0002] Corrugated cardboard is a sheet made of linerboard and corrugated paper formed by corrugating rollers. In the production of corrugated cardboard, the linerboard is coated with glue facing the surface of the corrugated paper, and then the linerboard and corrugated paper are pressed together in the middle to form a board.

[0003] The existing five-layer corrugated cardboard production requires the lamination and gluing of three layers of facing paper and two layers of corrugated paper. However, the existing gluing equipment uses motor-driven feeding rollers for individual feeding, which requires a control system to coordinate the speed of each motor to achieve synchronous feeding. The control process requires a large number of sensors and signal conversion components, and the electrical control equipment has a high failure rate and poor feeding stability. Therefore, we propose a high-efficiency gluing equipment for multi-layer corrugated cardboard to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and to propose a high-efficiency gluing device for multi-layer corrugated paper, which ensures that the feeding speed of the linerboard and corrugated paper is the same, prevents curling, folding or taut deformation, achieves uniform glue supply, and ensures that the glue is evenly coated on the surface of the linerboard.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency gluing device for multi-layer corrugated paper includes a frame, a roller assembly, and a gluing assembly. The roller assembly and the gluing assembly are installed in the middle of the frame. The roller assembly is located to the left of the gluing assembly. The roller assembly includes three smooth rollers and two corrugated rollers arranged alternately. Three smooth auxiliary rollers and two corrugated auxiliary rollers that cooperate with the smooth rollers and corrugated rollers are rotatably installed in the frame. Gears are provided at the front ends of the smooth rollers, corrugated rollers, smooth auxiliary rollers, and corrugated auxiliary rollers.

[0007] In the production of five-layer corrugated cardboard, three layers of facing paper (face paper, liner paper, and core paper) and two sheets of corrugated paper with different thicknesses are bonded together to form a board. The two layers of corrugated paper are interspersed among the facing paper, liner paper, and core paper. To achieve synchronous feeding, three smooth rollers and three smooth auxiliary rollers press the facing paper, liner paper, and core paper together. Two corrugated rollers and two corrugated auxiliary rollers use different tooth groove gaps to adaptably press the two sheets of corrugated paper with different thicknesses. When the roller assembly rotates, gears mesh in series to ensure that all smooth rollers and corrugated rollers rotate synchronously in the forward direction, while all smooth auxiliary rollers and corrugated auxiliary rollers rotate synchronously in the reverse direction. This achieves synchronous feeding of the five layers of raw material paper. The synchronization is achieved by mechanical gears, which ensures a stable structure, precise transmission, and convenient maintenance.

[0008] Preferably, the smooth roller, corrugated roller, smooth auxiliary roller and corrugated auxiliary roller are arranged in a vertical single row, and the gears are connected and meshed in series.

[0009] The smooth roll, corrugated roll, smooth auxiliary roll and corrugated auxiliary roll are arranged vertically in a single row, which can feed the five layers of raw paper synchronously, so that the five layers of raw paper move synchronously. The vertical single-layer arrangement ensures that the feeding structure is compact, occupies little space, and the gears are concentrated, which facilitates operation during maintenance.

[0010] Preferably, sprockets are respectively installed at the rear ends of the two smooth rollers located at the bottom and the one smooth auxiliary roller located at the top, and a chain is installed between the sprockets;

[0011] The two lower smooth rollers and the upper smooth auxiliary roller are each equipped with a sprocket at their rear ends. The sprocket at the rear end of the middle smooth roller is a double-groove sprocket, which can achieve three-point synchronous drive through two chains. This prevents the gears corresponding to the drive shaft from being subjected to concentrated force and structural fatigue due to single-axis drive, and disperses the transmission driving force to ensure structural stability during use.

[0012] Preferably, the outer circumferential wall of the smooth roller is provided with an annular groove, and anti-slip rings arranged at equal intervals are embedded in the annular groove, the anti-slip rings being in abutting contact with the smooth auxiliary roller;

[0013] The annular groove on the outer circumference of the smooth roller can stably install the anti-slip ring by increasing the contact area. The anti-slip ring deforms when squeezed against the raw paper, which can press the raw paper tightly to prevent slippage and ensure stable feeding.

[0014] Preferably, the left side of the frame is equipped with guide plates arranged at equal intervals, and the guide plates are located on the left side of the joint between the smooth roller and the smooth auxiliary roller and the joint between the corrugated roller and the corrugated auxiliary roller.

[0015] Five guide plates are provided, corresponding to the joints between the smooth roll and the smooth auxiliary roll, as well as the joints between the corrugated roll and the corrugated auxiliary roll, to ensure that the five layers of raw material paper can enter the roller assembly horizontally and prevent the raw material paper from rubbing against each other and interfering with each other.

[0016] Preferably, the right side of the frame is equipped with symmetrical side plates, and symmetrical gathering rollers are rotatably installed between the side plates.

[0017] The symmetrical side panels allow for the installation of symmetrical top and bottom gathering rollers, which press the five layers of raw material paper, after partial gluing, towards the center to achieve bonding of the five layers of raw material paper and stably form a five-layer glued corrugated board.

[0018] Preferably, the symmetrical gathering rollers are arranged in pairs, and the distance between the two corresponding gathering rollers gradually decreases from left to right;

[0019] At least four sets of symmetrical gathering rollers are arranged in pairs, and the distance between the two corresponding gathering rollers gradually decreases from left to right, which can gradually bring the five layers of raw paper closer together and press them together to achieve smooth and stable engagement.

[0020] Preferably, the glue assembly includes a glue supply tube, a sleeve with an opening is provided at the rear end of the glue supply tube, a distribution cavity communicating with the glue supply tube is provided at the lower part of the sleeve, and a perforated plate is installed at the top end of the distribution cavity;

[0021] The glue supply tube can supply glue to the evenly distributed cavity of the sleeve, so that the glue fills the entire lower space of the sleeve and overflows upward through the mesh plate, forming a uniform glue supply.

[0022] Preferably, the sleeve is rotatably connected to the frame, and an adapter shell is fixedly provided at the front end of the sleeve. An insert ring is rotatably installed at the front opening of the adapter shell, and the insert ring is fixedly connected to the glue supply tube through the sleeve.

[0023] The sleeve is rotatably connected to the frame, allowing the opening to be rotated to face the surface of the paper, the top and bottom surfaces of the inner paper, and the top surface of the core paper. The position is easy to adjust, and the glue from the tube enters the space between the insert ring and the adapter shell before entering the sleeve, ensuring that the tube remains stationary when the sleeve rotates, thus guaranteeing a stable glue supply.

[0024] Preferably, a middle roller is rotatably mounted in the middle of the sleeve. The middle roller includes a roller body with a grid groove on its circumferential sidewall. A synchronous pulley is mounted at the rear end of the roller body, and a synchronous belt is installed between the synchronous pulleys.

[0025] The glue overflowing from the perforated plate will enter the grid groove of the middle roller. As the middle roller rotates, it will carry the glue to the opening position, so that the glue can be evenly applied to the bottom surface of the face paper, the top and bottom surfaces of the inner paper and the top surface of the core paper. It is pushed and spread out by the middle roller, which rotates in a different direction than the direction of the raw paper, further ensuring that the glue is evenly applied.

[0026] Compared with the prior art, the advantages of the present invention are as follows:

[0027] The rotating roller assembly includes a smooth roller for pushing the linerboard and a corrugated roller for pushing the corrugated paper. Both the smooth roller and the corrugated roller are equipped with matching auxiliary rollers, which can press the linerboard and corrugated paper together and push them to the right stably to prevent slippage. Furthermore, the rollers of the rotating roller assembly are driven by gear meshing to ensure the rotation synchronization during pushing, ensure the same feeding speed, and prevent curling, folding, or taut deformation.

[0028] The glue supply assembly consists of a sleeve and a middle roller. The sleeve has an opening facing the linerboard. A glue supply tube is installed at the front end of the sleeve through an adapter shell. The sleeve can be rotated to change the opening orientation, making it flexible to use. The glue flows in the equalization chamber and overflows through the perforated plate. The overflowing glue is carried to the opening position by the rotation of the middle roller with the grid groove, and evenly coated on the surface of the linerboard, achieving uniform glue supply. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the left side of the present invention;

[0030] Figure 2 This is a rear view structural diagram of the present invention;

[0031] Figure 3 This is a left-side view of the left structure of the present invention;

[0032] Figure 4 This is a rear view schematic diagram of the left structure of the present invention;

[0033] Figure 5 This is a schematic diagram showing the position of the roller assembly of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the adhesive assembly of the present invention;

[0035] Figure 7 This is a cross-sectional schematic diagram of the adhesive component of the present invention;

[0036] Figure 8 This is a cross-sectional view of the front part of the adhesive assembly of the present invention.

[0037] In the diagram: Frame 1, Guide Plate 11, Roller Assembly 2, Smooth Roller 21, Anti-slip Ring 211, Smooth Sub-roller 212, Corrugated Roller 22, Corrugated Sub-roller 221, Chain 23, Sprocket 231, Gear 24, Glue Assembly 3, Glue Supply Pipe 31, Adapter Shell 32, Embedded Ring 321, Gathering Roller 4, Side Plate 41, Middle Roller 5, Roller Body 51, Mesh Groove 511, Synchronous Pulley 52, Synchronous Belt 53, Sleeve 54, Opening 541, Evenly Divided Cavity 542, Perforated Plate 543. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Reference Figure 1-8 This invention provides three technical solutions: Example 1

[0040] A high-efficiency gluing device for multi-layer corrugated paper includes a frame 1, a roller assembly 2, and a gluing assembly 3. The roller assembly 2 and the gluing assembly 3 are installed in the middle of the frame 1, with the roller assembly 2 located to the left of the gluing assembly 3. The roller assembly 2 includes three smooth rollers 21 and two corrugated rollers 22 arranged alternately. Three smooth auxiliary rollers 212 and two corrugated auxiliary rollers 221 that cooperate with the smooth rollers 21 and corrugated rollers 22 are rotatably installed in the frame 1. Gears 24 are provided at the front ends of the smooth rollers 21, corrugated rollers 22, smooth auxiliary rollers 212 and corrugated auxiliary rollers 221.

[0041] Specifically, the smooth roller 21, the corrugated roller 22, the smooth auxiliary roller 212 and the corrugated auxiliary roller 221 are arranged vertically in a single row, and the gears 24 are connected and meshed in series.

[0042] Furthermore, sprockets 231 are installed at the rear ends of the two smooth rollers 21 located at the bottom and the smooth auxiliary roller 212 located at the top, and a chain 23 is installed between the sprockets 231.

[0043] Furthermore, the outer circumference of the smooth roller 21 is provided with an annular groove, in which anti-slip rings 211 are embedded and installed at equal intervals, and the anti-slip rings 211 are in contact with the smooth auxiliary roller 212.

[0044] In the production of five-layer corrugated cardboard, three layers of facing paper (face paper, liner paper, and core paper) and two sheets of corrugated paper with different corrugated thicknesses are bonded together to form a board. The two corrugated paper layers are interspersed among the facing paper, liner paper, and core paper. To achieve synchronous feeding, three smooth rollers 21 and three smooth auxiliary rollers 212 press the facing paper, liner paper, and core paper together. Two corrugated rollers 22 and two corrugated auxiliary rollers 221 use different tooth gaps to adaptably press the two sheets of corrugated paper with different corrugated thicknesses. When the roller assembly 2 rotates, gears 24 engage in series to ensure that all smooth rollers 21 and corrugated rollers 22 rotate synchronously in the forward direction, while all smooth auxiliary rollers 212 and corrugated auxiliary rollers 221 rotate synchronously in the reverse direction. This achieves synchronous feeding of the five layers of raw paper. Synchronization is achieved using mechanical gears, resulting in a stable structure, precise transmission, and convenient maintenance. The smooth rollers 21, corrugated rollers 22, smooth auxiliary rollers 212, and corrugated auxiliary rollers 221 are vertically aligned. The arrangement allows for the synchronous feeding of five layers of raw material paper, enabling synchronized movement of all five layers. The vertical single-layer arrangement ensures a compact feeding structure with minimal space occupation. The concentrated gears 24 facilitate maintenance. Sprockets 231 are installed at the rear ends of the two lower smooth rollers 21 and the upper smooth auxiliary roller 212. The sprocket 231 at the rear end of the middle smooth roller 21 is a double-groove sprocket, allowing for three-point synchronous drive via two chains. This prevents stress concentration and structural fatigue caused by single-axis drive on the corresponding gear 24. The dispersed transmission force ensures structural stability during use, requiring only one motor for operation, simplifying the drive system. The annular groove on the outer circumference of the smooth roller 21 allows for the stable installation of the anti-slip ring 211 by increasing the contact area. The anti-slip ring 211 deforms under pressure with the raw material paper, compressing it and preventing slippage, thus ensuring stable feeding. Example 2

[0045] A high-efficiency gluing device for multi-layer corrugated paper includes a frame 1, a roller assembly 2, and a gluing assembly 3. The roller assembly 2 and the gluing assembly 3 are installed in the middle of the frame 1, with the roller assembly 2 located to the left of the gluing assembly 3. The roller assembly 2 includes three smooth rollers 21 and two corrugated rollers 22 arranged alternately. Three smooth auxiliary rollers 212 and two corrugated auxiliary rollers 221 that cooperate with the smooth rollers 21 and corrugated rollers 22 are rotatably installed in the frame 1. Gears 24 are provided at the front ends of the smooth rollers 21, corrugated rollers 22, smooth auxiliary rollers 212 and corrugated auxiliary rollers 221.

[0046] Specifically, the left side of the frame 1 is equipped with guide plates 11 arranged at equal intervals. The guide plates 11 are located on the left side of the joint between the smooth roller 21 and the smooth auxiliary roller 212, and the joint between the corrugated roller 22 and the corrugated auxiliary roller 221.

[0047] It is worth noting that the right side of the frame 1 is equipped with symmetrical side plates 41, and symmetrical gathering rollers 4 are rotatably installed between the side plates 41.

[0048] It is worth noting that the symmetrical upper and lower gathering rollers 4 are arranged in pairs, and the distance between the two corresponding upper and lower gathering rollers 4 gradually decreases from left to right.

[0049] Five guide plates 11 are provided, corresponding to the joints of the smooth roller 21 and the smooth auxiliary roller 212, and the joints of the corrugated roller 22 and the corrugated auxiliary roller 221, to ensure that the five layers of raw material paper can enter the roller assembly 2 horizontally and prevent mutual friction and interference between the raw material papers. The symmetrical side plates 41 can be equipped with symmetrical upper and lower gathering rollers 4 to squeeze the five layers of raw material paper after partial gluing towards the center, so as to achieve the bonding of the five layers of raw material paper and stably form a five-layer glued corrugated board. At least four sets of symmetrical upper and lower gathering rollers 4 are provided in pairs, and the distance between the two corresponding upper and lower gathering rollers 4 gradually decreases from left to right, so that the five layers of raw material paper can be gradually brought together and pressed together to achieve smooth and stable engagement. Example 3

[0050] A high-efficiency gluing device for multi-layer corrugated paper includes a frame 1, a roller assembly 2, and a gluing assembly 3. The roller assembly 2 and the gluing assembly 3 are installed in the middle of the frame 1, with the roller assembly 2 located to the left of the gluing assembly 3. The roller assembly 2 includes three smooth rollers 21 and two corrugated rollers 22 arranged alternately. Three smooth auxiliary rollers 212 and two corrugated auxiliary rollers 221 that cooperate with the smooth rollers 21 and corrugated rollers 22 are rotatably installed in the frame 1. Gears 24 are provided at the front ends of the smooth rollers 21, corrugated rollers 22, smooth auxiliary rollers 212 and corrugated auxiliary rollers 221.

[0051] Specifically, the glue assembly 3 includes a glue supply pipe 31, a sleeve 54 with an opening 541 is provided at the rear end of the glue supply pipe 31, a distribution cavity 542 communicating with the glue supply pipe 31 is provided at the lower part of the sleeve 54, and a mesh plate 543 is installed at the top of the distribution cavity 542.

[0052] Furthermore, the sleeve 54 is rotatably connected to the frame 1, and an adapter shell 32 is fixedly provided at the front end of the sleeve 54. An insert ring 321 is rotatably installed at the front opening of the adapter shell 32, and the insert ring 321 is fixedly connected to the through-hole glue supply tube 31.

[0053] Furthermore, a middle roller 5 is rotatably mounted in the middle of the sleeve 54. The middle roller 5 includes a roller body 51 with a grid groove 511 on its circumferential sidewall. A synchronous pulley 52 is mounted at the rear end of the roller body 51, and a synchronous belt 53 is installed between the synchronous pulleys 52.

[0054] The pump forces the glue into the glue supply tube 31, supplying glue to the evenly distributed cavity 542 of the sleeve 54, filling the entire lower space of the sleeve 54 with glue, and overflowing upwards through the mesh plate 543, forming a uniform glue supply. The sleeve 54 is rotatably connected to the frame 1, and the orientation of the opening 541 can be rotated, allowing the use of four sleeves 54 to apply glue to the bottom surface of the face paper, the top and bottom surfaces of the inner paper, and the top surface of the core paper. The position adjustment is convenient, and the glue from the glue tube 31 enters the insert ring 321 and the adapter. The space between the shells 32 then enters the sleeve 54, ensuring that the position of the glue tube 31 remains unchanged when the sleeve 54 rotates, thus ensuring stable glue supply. The glue overflowing from the mesh plate 543 will enter the mesh groove 511 of the middle roller 5. As the middle roller 5 rotates, it will carry the glue to the opening 541, which can evenly apply the glue to the bottom surface of the face paper, the top and bottom surfaces of the inner paper and the top surface of the core paper. It is pushed and spread by the middle roller 5, which rotates in a different direction than the direction of the raw paper, further ensuring uniform glue distribution.

[0055] The motors and pumps involved in both embodiments are existing products manufactured by Shanghai Yongce Machinery Equipment Co., Ltd., and their supporting control systems, electromagnetic switches and circuits can also be provided by the manufacturer. In addition, the power supply module, circuits and electronic components and control module involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this invention does not involve any improvement to the internal structure and method.

[0056] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency gluing device for multi-layer corrugated paper, comprising a frame (1), a roller assembly (2), and a glue assembly (3), wherein the roller assembly (2) and the glue assembly (3) are installed in the middle of the frame (1), and the roller assembly (2) is located to the left of the glue assembly (3), characterized in that, The rotating roller assembly (2) comprises smooth rollers (21) and corrugated rollers (22) staggered up and down, smooth sub-rollers (212) and corrugated sub-rollers (221) are rotatably installed in the frame (1) and cooperate with the smooth rollers (21) and the corrugated rollers (22), and gears (24) are arranged at the front ends of the smooth rollers (21), the corrugated rollers (22), the smooth sub-rollers (212) and the corrugated sub-rollers (221); The glue feeding assembly (3) comprises a glue feeding pipe (31), the rear end of the glue feeding pipe (31) is provided with a sleeve (54) with an opening (541), the lower part of the sleeve (54) is provided with an equal division cavity (542) in communication with the glue feeding pipe (31), and a mesh plate (543) is installed at the top end of the equal division cavity (542); The sleeve (54) is rotatably connected with the frame (1), a transition shell (32) is fixedly arranged at the front end of the sleeve (54), an embedded ring (321) is rotatably installed at the front end opening of the transition shell (32), and the embedded ring (321) is fixedly connected with the glue feeding pipe (31) penetrating through; A middle roller (5) is rotatably installed in the middle part of the sleeve (54), the middle roller (5) comprises a roller body (51) with a grid groove (511) arranged on the circumferential side wall, and synchronous wheels (52) are installed at the rear ends of the roller body (51), and a synchronous belt (53) is installed between the synchronous wheels (52).

2. A multi-layer corrugated paper efficient gluing apparatus according to claim 1, characterized in that, The smooth rollers (21), the corrugated rollers (22), the smooth sub-rollers (212) and the corrugated sub-rollers (221) are arranged in a vertical single row, and the gears (24) are up and down in series.

3. A multi-layer corrugated paper efficient gluing apparatus according to claim 2, characterized in that, Chain wheels (231) are installed at the rear ends of the two smooth rollers (21) located at the lower part and the one smooth sub-roller (212) located at the upper part, respectively, and a chain (23) is installed between the chain wheels (231).

4. A multi-layer corrugated paper efficient gluing apparatus according to claim 3, characterized in that, An annular groove is arranged on the circumferential outer wall of the smooth roller (21), and anti-skid rings (211) arranged at equal intervals are embedded and installed in the annular groove, and the anti-skid rings (211) are in pressure contact with the smooth sub-roller (212).

5. A multi-layer corrugated paper efficient gluing apparatus according to claim 1, characterized in that, Guide plates (11) arranged at equal intervals up and down are installed on the left part of the frame (1), and the guide plates (11) are located at the left parts of the joint positions of the smooth rollers (21) and the smooth sub-rollers (212) and the joint positions of the corrugated rollers (22) and the corrugated sub-rollers (221).

6. A multi-layer corrugated paper efficient gluing apparatus according to claim 5, characterized in that, Front and back symmetrical side plates (41) are installed on the right part of the frame (1), and up and down symmetrical folding rollers (4) are rotatably installed between the side plates (41).

7. A multi-layer corrugated paper efficient gluing apparatus according to claim 6, characterized in that, The up and down symmetrical folding rollers (4) are arranged in pairs, and the distance between the corresponding two folding rollers (4) gradually decreases from left to right.

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