Gluing device for corrugated paper box

By designing a gluing device for corrugated cardboard boxes, and using guide rollers, gluing rollers, and scraper components, the problems of large size and large footprint of traditional gluing devices have been solved, and a compact gluing effect for five-layer corrugated cardboard has been achieved.

CN223543313UActive Publication Date: 2025-11-14DONGGUAN QIFENG PACKAGING MATERIALS CO LTD
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Patent Information

Application Number
CN202422807834.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-11-14
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Existing corrugated cardboard coating equipment is bulky, occupies a large area, is inconvenient to use, and is difficult to effectively coat five-layer corrugated cardboard.

Method used

A gluing device for corrugated cardboard boxes has been designed, including components such as a fixing frame, a gluing assembly, a guide roller, a gluing roller, a scraper, and a bonding roller. The guide roller guides the paper, the gluing roller applies glue, the scraper recovers excess glue, and the bonding roller forms five layers of corrugated cardboard.

Benefits of technology

It features a compact structural design, a small footprint, and the ability to effectively coat adhesives to form a sturdy five-layer corrugated cardboard.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gluing device for a corrugated paper box, and relates to the technical field of corrugated paper box production and processing, the gluing device comprises a mounting assembly, the mounting assembly comprises a mounting frame, a fixing frame is fixedly mounted in the middle of the mounting frame, and two gluing assemblies are fixedly mounted at the top of the fixing frame; a first guide roller is rotationally connected to the bottom of the fixing frame, the gluing assembly comprises a glue box, a gluing roller is rotationally connected to one side of the top of the glue box, a scraping piece is fixedly installed on the side, provided with the gluing roller, of the glue box, the glue box is filled with glue, and the liquid level of the glue is arranged at the bottom of the scraping piece; the liquid level of the glue is higher than the bottom of the gluing roller, a roller shaft frame is fixedly mounted at the top of the fixing frame, and two bonding rollers are rotationally connected to the top of the roller shaft frame; according to the glue coating device, glue can be coated on the two sides of the inner layer paper, and the glue coating device is compact in structure, small in occupied area and high in practical value.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box production and processing technology, specifically to a gluing device for corrugated cardboard boxes. Background Technology

[0002] Corrugated cardboard box production and processing refers to the process of transforming raw paper materials into final corrugated cardboard box products through a series of technological steps. This process includes all steps from raw material preparation to finished packaging boxes. A gluing device for corrugated cardboard boxes is a type of mechanical equipment specially designed for gluing operations during the production process of corrugated cardboard or corrugated cardboard boxes. The main function of this device is to evenly apply glue during the bonding process of corrugated cardboard, ensuring that each layer of cardboard can be firmly bonded together to form a sturdy and durable corrugated cardboard or carton.

[0003] Based on the above, the inventors have discovered the following problems: Current thickened corrugated cardboard is usually five-layer corrugated cardboard, consisting of two single-sided corrugated boards sandwiching an inner layer of paper. Traditional gluing devices apply glue to one side of the corrugated paper of the single-sided corrugated board, and the overall size of the device is large, taking up a lot of space, and is inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a gluing device for corrugated cardboard boxes in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a gluing device for corrugated cardboard boxes to solve the problems mentioned in the background art. A gluing device for corrugated cardboard boxes includes an installation assembly. The installation assembly includes a mounting frame, a fixing frame fixedly mounted in the middle of the mounting frame, two gluing components fixedly mounted on the top of the fixing frame, and a first guide roller rotatably connected to the bottom of the fixing frame. Each gluing component includes a glue box, a gluing roller rotatably connected to one side of the top of the glue box, and a scraper fixedly mounted on the side of the glue box with the gluing roller. The glue box is filled with glue, the glue level is at the bottom of the scraper, and the glue level is higher than the bottom of the gluing roller. A roller frame is fixedly mounted on the top of the fixing frame, and two bonding rollers are rotatably connected to the top of the roller frame.

[0006] By adopting the above technical solution, two gluing components are fixedly installed on the top of the fixing frame, and a first guide roller is rotatably connected to the bottom of the fixing frame. This guide roller guides the inner layer paper, allowing it to pass between the two gluing components for gluing. The glue level is positioned at the bottom of the scraper, higher than the bottom of the gluing rollers, facilitating glue coverage of the gluing rollers within the glue box. The scraper scrapes excess glue back into the glue box, allowing the two gluing rollers to apply an appropriate amount of glue to both sides of the inner layer paper for easy bonding. A roller frame is fixedly installed on the top of the fixing frame, and two bonding rollers are rotatably connected to the top of the roller frame. These bonding rollers press and bond one side of the corrugated paper from two single-sided corrugated boards to the inner layer paper, forming a five-layer corrugated paper. Furthermore, two second guide rollers are rotatably connected to the middle of the roller frame, and these second guide rollers are positioned at the bottom of the bonding rollers.

[0007] By adopting the above technical solution, the second guide roller is set at the bottom of the bonding roller, which facilitates the guidance of the single-sided corrugated board and makes it easy to bond the two single-sided corrugated boards with the inner paper to form a five-layer corrugated board.

[0008] Furthermore, a top cover is fixedly installed on the top of the glue box on the side away from the glue application roller, and a solenoid valve is fixedly installed in the middle of the top cover. The top of the solenoid valve is connected to a glue injection port.

[0009] By adopting the above technical solution, a solenoid valve is fixedly installed in the middle of the top cover, and the top of the solenoid valve is connected to a glue injection port, which facilitates the connection of the glue injection port to an external pipe, making it convenient to fill the glue box with glue.

[0010] Furthermore, liquid level sensors are fixedly installed at both ends of the top cover, and the liquid level sensors are electrically connected to the solenoid valve.

[0011] By adopting the above technical solution, the liquid level sensor is electrically connected to the solenoid valve, which facilitates the liquid level sensor to monitor the position of the glue level inside the glue box and control the opening and closing of the solenoid valve, so that the glue level inside the glue box is always kept above the bottom of the glue roller and below the scraper.

[0012] Furthermore, a first motor and a second motor are fixedly installed on one side of the glue box, and a first worm gear is fixedly installed on the output end of the first motor.

[0013] By adopting the above technical solution, a first worm gear is fixedly installed at the output end of the first motor, which facilitates the operation of the first motor to drive the first worm gear to rotate.

[0014] Furthermore, the first worm gear is meshed with a first worm wheel, and the first worm wheel is fixedly connected to the glue-applying roller.

[0015] By adopting the above technical solution, a first worm gear is meshed with a first worm wheel, and the first worm wheel is fixedly connected to the glue coating roller. This facilitates the rotation of the first worm gear, which in turn drives the first worm wheel to rotate, thereby coating the glue onto the surface of the inner paper.

[0016] Furthermore, an installation plate is fixedly installed in the middle of the inner side of the glue box, and three stirring paddles are rotatably connected to the installation plate. The stirring paddles are located at the bottom of the inner side of the glue box.

[0017] By adopting the above technical solution, the stirring paddle is placed at the bottom inside the glue box, which facilitates the stirring paddle to stir the glue inside the glue box, keeping the glue flowing and preventing sedimentation and maintaining viscosity.

[0018] Furthermore, the top of the mounting plate is provided with a drive shaft, which is rotatably connected to the glue box.

[0019] Furthermore, a second worm gear is fixedly installed on the top of the stirring paddle, and the second worm gear is meshed with a second worm, which is fixedly connected to the drive shaft.

[0020] By adopting the above technical solution, a second worm is connected to the second worm gear through a second worm wheel meshing. The second worm is fixedly connected to the transmission shaft, which facilitates the rotation of the transmission shaft to drive the stirring paddle to rotate.

[0021] Furthermore, a third worm gear is fixedly installed at one end of the transmission shaft, and the third worm gear is meshed with a third worm, which is fixedly connected to the output end of the second motor.

[0022] By adopting the above technical solution, a third worm is connected to the third worm gear through a third worm wheel meshing. The third worm is fixedly connected to the output end of the second motor, which facilitates the operation of the second motor to control the rotation of the transmission shaft, thereby controlling the rotation of the stirring paddle.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: Two glue-applying components are fixedly installed on the top of the fixing frame, and a first guide roller is rotatably connected to the bottom of the fixing frame. The first guide roller guides the inner layer paper, allowing the inner layer paper to pass between the two glue-applying components for glue application. The glue level is set at the bottom of the scraper, and the glue level is higher than the bottom of the glue-applying roller, which facilitates the glue to cover the surface of the glue-applying roller inside the glue box. The scraper scrapes off excess glue and flows back into the glue box, making it convenient for the two glue-applying rollers to apply an appropriate amount of glue to both sides of the inner layer paper for easy bonding. A roller frame is fixedly installed on the top of the fixing frame, and two bonding rollers are rotatably connected to the top of the roller frame. The bonding rollers roll and bond one side of the corrugated paper of the two single-sided corrugated boards to the inner layer paper, thereby forming a five-layer corrugated paper. This utility model can apply glue to both sides of the inner layer paper, and has a compact structure, small footprint, and high practical value. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a gluing device for corrugated cardboard boxes according to the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the mounting component of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the adhesive coating component of this utility model;

[0027] Figure 4 This is a cross-sectional view of the glue box of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the mounting plate of this utility model.

[0029] In the diagram: 101, mounting assembly; 10101, mounting bracket; 10102, fixing bracket; 10103, first guide roller; 10104, roller frame; 10105, bonding roller; 10106, second guide roller; 102, glue application assembly; 10201, glue box; 10202, glue application roller; 10203, scraper; 10204, first worm gear; 10205, first motor; 1 0206, First worm gear; 10207, Top cover; 10208, Solenoid valve; 10209, Glue injection port; 10210, Liquid level sensor; 10211, Mounting plate; 10212, Agitator; 10213, Drive shaft; 10214, Second worm gear; 10215, Second worm wheel; 10216, Second motor; 10217, Third worm gear; 10218, Third worm wheel. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5This utility model provides a technical solution: a gluing device for corrugated cardboard boxes, including a mounting assembly 101. The mounting assembly 101 includes a mounting frame 10101, a fixing frame 10102 fixedly mounted in the middle of the mounting frame 10101, two gluing components 102 fixedly mounted on the top of the fixing frame 10102, and a first guide roller 10103 rotatably connected to the bottom of the fixing frame 10102. The two gluing components 102 are fixedly mounted on the top of the fixing frame 10102. The bottom of the fixing frame 10102 is rotatably connected to a first guide roller 10103, which facilitates the first guide roller 10103 to guide the inner layer paper, allowing the inner layer paper to pass between the two gluing components 102 for gluing. The gluing component 102 includes a glue box 10201, with a gluing roller 10202 rotatably connected to one side of the top of the glue box 10201, and a scraper 10203 is fixedly installed on the side of the glue box 10201 where the gluing roller 10202 is located. The glue container 10202 is filled with glue, and the glue level is positioned at the bottom of the scraper 10203, while being higher than the bottom of the coating roller 10202. This arrangement allows the glue to coat the surface of the coating roller 10202 from inside the glue container 10201. The scraper 10203 scrapes off excess glue, allowing it to flow back into the glue container 10201, thus facilitating the application of appropriate amounts of glue by both coating rollers 10202. For easy bonding on both sides of the inner layer paper, a roller frame 10104 is fixedly installed on the top of the fixing frame 10102. Two bonding rollers 10105 are rotatably connected to the top of the roller frame 10104. The roller frame 10104 is fixedly installed on the top of the fixing frame 10102, and two bonding rollers 10105 are rotatably connected to the top of the roller frame 10104. This makes it easy for the bonding rollers 10105 to roll and bond one side of the corrugated paper of the two single-sided corrugated boards to the inner layer paper, thereby forming a five-layer corrugated paper.

[0032] Among them, two second guide rollers 10106 are rotatably connected in the middle of the roller frame 10104, and the second guide rollers 10106 are set at the bottom of the bonding roller 10105. The second guide rollers 10106 are set at the bottom of the bonding roller 10105 to facilitate the guidance of the single-sided corrugated board, and facilitate the bonding of two single-sided corrugated boards with the inner layer paper to form a five-layer corrugated board.

[0033] The glue box 10201 has a top cover 10207 fixedly installed on the side away from the glue roller 10202. A solenoid valve 10208 is fixedly installed in the middle of the top cover 10207. The top of the solenoid valve 10208 is connected to the glue injection port 10209. The glue injection port 10209 is connected to the top of the solenoid valve 10207, which facilitates the connection of the glue injection port 10209 to an external pipe, so as to facilitate the filling of glue into the glue box 10201.

[0034] Liquid level sensors 10210 are fixedly installed at both ends of the top cover 10207. The liquid level sensors 10210 are electrically connected to the solenoid valve 10208. Through the electrical connection between the liquid level sensors 10210 and the solenoid valve 10208, the liquid level sensors 10210 can monitor the position of the glue level inside the glue box 10201 and control the opening and closing of the solenoid valve 10208, so that the glue level inside the glue box 10201 is always kept above the bottom of the glue application roller 10202 and below the scraper 10203.

[0035] Among them, a first motor 10205 and a second motor 10216 are fixedly installed on one side of the glue box 10201. A first worm gear 10206 is fixedly installed at the output end of the first motor 10205. The first worm gear 10206 is fixedly installed at the output end of the first motor 10205, so that the first motor 10205 can drive the first worm gear 10206 to rotate.

[0036] The first worm gear 10206 is meshed with a first worm wheel 10204, which is fixedly connected to the glue coating roller 10202. The first worm gear 10206 meshes with the first worm wheel 10204, which is fixedly connected to the glue coating roller 10202. This allows the first worm gear 10206 to rotate, causing the first worm wheel 10204 to drive the glue coating roller 10202 to rotate, thereby coating the glue onto the surface of the inner paper.

[0037] The glue box 10201 has an installation plate 10211 fixedly installed in the middle of its inner side. The installation plate 10211 is rotatably connected to three stirring paddles 10212. The stirring paddles 10212 are located at the bottom of the inner side of the glue box 10201. The placement of the stirring paddles 10212 at the bottom of the inner side of the glue box 10201 facilitates the stirring of the glue inside the glue box 10201, keeping the glue flowing and preventing sedimentation and maintaining viscosity.

[0038] The mounting plate 10211 has a drive shaft 10213 on its top, and the drive shaft 10213 is rotatably connected to the glue box 10201.

[0039] The agitator 10212 has a second worm gear 10215 fixedly installed on its top. The second worm gear 10215 is meshed with a second worm 10214. The second worm 10214 is fixedly connected to the drive shaft 10213. The second worm gear 10214 is meshed with the second worm gear 10215 and fixedly connected to the drive shaft 10213, which facilitates the rotation of the drive shaft 10213 to drive the agitator 10212 to rotate.

[0040] The drive shaft 10213 has a third worm gear 10218 fixedly mounted on one end. The third worm gear 10218 is meshed with a third worm 10217. The third worm 10217 is fixedly connected to the output end of the second motor 10216. The third worm gear 10217 is meshed with the third worm gear 10218 and fixedly connected to the output end of the second motor 10216, which facilitates the second motor 10216 to control the rotation of the drive shaft 10213, thereby controlling the rotation of the agitator 10212.

[0041] Specifically, the working principle of this corrugated cardboard box gluing device is as follows: During use, two gluing components 102 are fixedly installed on the top of the fixing frame 10102. A first guide roller 10103 is rotatably connected to the bottom of the fixing frame 10102, facilitating the guidance of the inner paper by the first guide roller 10103, allowing the inner paper to pass between the two gluing components 102 for gluing. A solenoid valve 10208 is fixedly installed in the middle of the top cover 10207. The top of the solenoid valve 10208 is connected to a glue injection port 10209, facilitating connection of the glue injection port 10209 to an external pipe for filling the glue box 10201 with glue. A liquid level sensor 10210 is electrically connected to the solenoid valve 10208, allowing the liquid level sensor 10210 to monitor the glue box 10201. The glue level inside the glue box 10201 is controlled by the opening and closing of the solenoid valve 10208, ensuring that the glue level inside the glue box 10201 always covers the bottom of the coating roller 10202 and is below the scraper 10203. A first worm gear 10206 is fixedly installed at the output end of the first motor 10205, allowing the first motor 10205 to drive the first worm gear 10206 to rotate. The first worm gear 10206 is meshed with a first worm wheel 10204, which is fixedly connected to the coating roller 10202. This allows the first worm gear 10206 to rotate, causing the first worm wheel 10204 to drive the coating roller 10202 to rotate, thereby applying glue to the surface of the inner paper. The glue level is set at the bottom of the scraper 10203. The glue level is higher than the bottom of the coating roller 10202, allowing the glue to cover the surface of the coating roller 10202 inside the glue box 10201. The scraper 10203 scrapes off excess glue and returns it to the glue box 10201, facilitating the two coating rollers 10202 to apply an appropriate amount of glue to both sides of the inner paper for easy bonding. A third worm 10217 is engaged with a third worm gear 10218 and is fixedly connected to the output end of the second motor 10216, allowing the second motor 10216 to control the rotation of the drive shaft 10213, thereby controlling the rotation of the stirring paddle 10212. A second worm 10214 is engaged with a second worm gear 10215 and is fixedly connected to the drive shaft 10213. The drive shaft 10213 rotates to drive the stirring paddle 10212. The stirring paddle 10212 is positioned at the bottom inside the glue box 10201, facilitating the stirring of the glue inside and maintaining its flow to prevent sedimentation and maintain viscosity. A second guide roller 10106 is positioned at the bottom of the bonding roller 10105 to guide the single-sided corrugated sheets, facilitating the bonding of two single-sided corrugated sheets to the inner layer paper to form a five-layer corrugated sheet. A roller frame 10104 is fixedly installed on the top of the fixing frame 10102, with two bonding rollers 10105 rotatably connected to the top of the roller frame 10104. These rollers 10105 press and bond one side of the corrugated paper of the two single-sided corrugated sheets to the inner layer paper.This forms a five-layer corrugated paper. The above description is merely a preferred embodiment of this utility model and is not intended to limit its scope. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within its protection scope.

Claims

1. A gluing device for corrugated cardboard boxes, characterized in that, The system includes an installation assembly (101), which includes a mounting bracket (10101). A fixing bracket (10102) is fixedly installed in the middle of the mounting bracket (10101). Two glue application assemblies (102) are fixedly installed on the top of the fixing bracket (10102). A first guide roller (10103) is rotatably connected to the bottom of the fixing bracket (10102). The glue application assembly (102) includes a glue box (10201), and a glue application device is rotatably connected to one side of the top of the glue box (10201). The roller (10202) and the glue box (10201) are provided with a glue application roller (10202) and a scraper (10203) is fixedly installed on one side. The glue box (10201) is filled with glue. The glue liquid level is set at the bottom of the scraper (10203) and the glue liquid level is higher than the bottom of the glue application roller (10202). A roller frame (10104) is fixedly installed on the top of the fixing frame (10102). Two bonding rollers (10105) are rotatably connected to the top of the roller frame (10104).

2. The gluing device for corrugated cardboard boxes according to claim 1, characterized in that, Two second guide rollers (10106) are rotatably connected in the middle of the roller frame (10104), and the second guide rollers (10106) are arranged at the bottom of the adhesive roller (10105).

3. The gluing device for corrugated cardboard boxes according to claim 2, characterized in that, A top cover (10207) is fixedly installed on the top of the glue box (10201) away from the glue roller (10202). A solenoid valve (10208) is fixedly installed in the middle of the top cover (10207). A glue injection port (10209) is connected to the top of the solenoid valve (10208).

4. The gluing device for corrugated cardboard boxes according to claim 3, characterized in that, Liquid level sensors (10210) are fixedly installed at both ends of the top cover (10207), and the liquid level sensors (10210) are electrically connected to the solenoid valve (10208).

5. The gluing device for corrugated cardboard boxes according to claim 1, characterized in that, A first motor (10205) and a second motor (10216) are fixedly installed on one side of the glue box (10201), and a first worm gear (10206) is fixedly installed at the output end of the first motor (10205).

6. The gluing device for corrugated cardboard boxes according to claim 5, characterized in that, The first worm (10206) is meshed with a first worm wheel (10204), and the first worm wheel (10204) is fixedly connected to the glue-applying roller (10202).

7. The gluing device for corrugated cardboard boxes according to claim 6, characterized in that, An installation plate (10211) is fixedly installed in the middle of the inner side of the glue box (10201). The installation plate (10211) is rotatably connected to three stirring paddles (10212). The stirring paddles (10212) are located at the bottom of the inner side of the glue box (10201).

8. The gluing device for corrugated cardboard boxes according to claim 7, characterized in that, The mounting plate (10211) is provided with a drive shaft (10213) on the top, and the drive shaft (10213) is rotatably connected to the glue box (10201).

9. The gluing device for corrugated cardboard boxes according to claim 8, characterized in that, A second worm gear (10215) is fixedly installed on the top of the stirring paddle (10212). The second worm gear (10215) is meshed with a second worm (10214). The second worm (10214) is fixedly connected to the drive shaft (10213).

10. A gluing device for corrugated cardboard boxes according to claim 9, characterized in that, A third worm gear (10218) is fixedly installed at one end of the transmission shaft (10213). The third worm gear (10218) is meshed with a third worm (10217). The third worm (10217) is fixedly connected to the output end of the second motor (10216).