A glue spraying device for corrugated carton processing

By designing an adjustable glue spraying device and a cleaning device, the problem of uneven glue spraying in existing equipment was solved, improving the glue spraying quality and conveying stability of corrugated boxes and ensuring the overall quality of the boxes.

CN224276428UActive Publication Date: 2026-05-26DALIAN HY PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN HY PACKING CO LTD
Filing Date
2025-04-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing corrugated cardboard box processing glue spraying equipment has a fixed glue spraying device, which makes it difficult to flexibly adjust the glue spraying angle and meet the diverse glue spraying needs of corrugated cardboard boxes. This results in uneven glue coverage, affecting the quality of the cardboard boxes and potentially causing glue separation or damage.

Method used

A glue spraying device was designed to adjust the spraying angle by rotation and is equipped with a cleaning device that uses the power of the conveyor to clean the area to be sprayed on the carton. This ensures that the glue is evenly covered and improves the accuracy and flexibility of the glue spraying. The cleaning device uses friction to drive a cleaning cotton to continuously clean the surface of the conveyor.

Benefits of technology

It enables precise adjustment of the glue spraying angle and uniform glue coverage, improving the glue spraying quality of cartons and preventing the accumulation of impurities from affecting conveying stability and glue spraying effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a glue spraying device for corrugated cardboard box processing. This utility model relates to the field of corrugated paper processing technology. The device includes a frame, with a glue spraying device fixedly connected to the top of the frame. By coordinating the glue spraying device and a cleaning device, and through the operation of the active gear, the rotational cooperation between the passive and active gears allows for precise changes in the glue spraying direction, meeting the diverse needs of corrugated cardboard boxes of different shapes and sizes for different spraying angles. This greatly improves the accuracy and flexibility of glue spraying, ensuring uniform coverage of the cardboard box to be sprayed and enhancing the quality of glue spraying. Under the action of a compression spring, the device is easily locked. During the rotation of the conveyor device, the cleaning cotton can slide along the inner wall of the frame with the help of the conveyor device's power, continuously cleaning the outer surface of the conveyor device. This effectively removes residual glue, paper scraps, and other impurities from the surface of the conveyor device, preventing their accumulation from affecting the stability of the cardboard box conveying and the subsequent glue spraying effect.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated paper processing technology, specifically to a glue spraying device for corrugated cardboard box processing. Background Technology

[0002] In the modern packaging industry, corrugated cardboard boxes are a widely used packaging material, and their processing quality directly affects the protection and transportation of products.

[0003] Existing adhesive spraying equipment for corrugated cardboard box processing mostly uses fixed adhesive spraying devices. The glue is transported from the glue tank to the spray gun at a fixed angle through a pipe, and the glue is sprayed onto the cardboard box that is moving at a uniform speed on the conveyor. Traditional adhesive spraying equipment for corrugated cardboard box processing has many limitations. On the one hand, the adhesive spraying device is often fixed, and the spraying direction of the glue head is difficult to adjust flexibly. When dealing with corrugated cardboard boxes of different shapes and sizes, it cannot meet the diverse spraying angle requirements, resulting in the glue not being evenly covered on the parts of the cardboard box to be sprayed. The bonding strength of different parts of the cardboard box is inconsistent, affecting the overall quality of the cardboard box. In severe cases, it may even lead to problems such as glue separation and damage in subsequent use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a glue spraying device for corrugated cardboard box processing, which solves the problems of traditional glue spraying equipment having difficulty adjusting the glue spraying angle, being unable to meet the diverse needs of cardboard boxes, and the lack of cleaning of the conveying device affecting the cardboard box conveying and glue spraying effect.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a glue spraying device for corrugated cardboard box processing, comprising: a frame, a glue spraying device fixedly connected to the top of the frame, the glue spraying device being adjustable by rotation, a conveying device rotatably connected to the inner wall of the frame, a cleaning device slidably connected to the inner wall of the frame, the cleaning device cleaning the outer surface of the conveying device by utilizing the rotation of the conveying device, the glue spraying device including a U-shaped frame, a through cavity opened in the inner wall of the U-shaped frame, a flexible hose fixedly connected to the outer wall of the U-shaped frame, a glue head fixedly connected to the bottom end of the flexible hose by bolts, the bottom end of the U-shaped frame being fixedly connected to the top of the frame, and the outer wall of the flexible hose being arranged in a linear array along the outer wall of the U-shaped frame.

[0008] Preferably, a fixing ring is fixedly connected to the outer wall of the hose, and a passive tooth is rotatably connected to the inner wall of the fixing ring. An active tooth engages with the outer wall of the passive tooth. By coordinating the glue spraying device and the cleaning device, and by operating the active tooth, the glue spraying direction of the glue head can be precisely changed through the rotational engagement of the passive tooth and the active tooth. This meets the diverse needs of corrugated cartons of different shapes and sizes for glue spraying angles, greatly improving the accuracy and flexibility of glue spraying and ensuring that the glue evenly covers the area of ​​the carton to be sprayed.

[0009] Preferably, a support rod is rotatably connected to the outer wall of the active tooth, a compression spring is fixedly connected to the outer wall of the support rod, and a locking tooth is fixedly connected to the end of the compression spring away from the support rod.

[0010] Preferably, the top end of the support rod is fixedly connected to the outer wall of the U-shaped frame, the inner wall of the locking tooth is fixedly connected to the inner wall of the support rod through a rotating shaft, and the rotating shaft is fixedly connected to the inner wall of the locking tooth. The outer wall of the locking tooth is slidably connected to the outer wall of the active tooth, which is easy to lock under the action of the compression spring.

[0011] Preferably, the cleaning device includes a cleaning cotton, the outer wall of which is slidably connected to a limit strip via a fixed plate, and the inner wall of the limit strip is rotatably connected to a rotating rod. The cleaning cotton can slide along the inner wall of the frame with the help of the power of the conveying device to continuously clean the outer surface of the conveying device, effectively removing residual glue, paper scraps and other impurities from the surface of the conveying device, preventing their accumulation from affecting the stability of the carton conveying and the subsequent glue spraying effect.

[0012] Preferably, the outer wall of the cleaning cotton is slidably connected to the inner wall of the frame, the bottom end of the cleaning cotton is slidably connected to the conveying device, and the outer wall of the rotating rod is fixedly connected to the outer wall of the frame.

[0013] (III) Beneficial Effects

[0014] This utility model provides a glue spraying device for corrugated cardboard box processing. It has the following beneficial effects:

[0015] This invention, through the coordinated use of a glue spraying device and a cleaning device, and by operating the active gear and utilizing the rotational interaction between the passive and active gears, can precisely change the glue spraying direction of the glue head. This meets the diverse needs of corrugated cartons of different shapes and sizes for glue spraying angles, greatly improving the accuracy and flexibility of glue spraying, ensuring that the glue evenly covers the area of ​​the carton to be sprayed, and improving the glue spraying quality. Under the action of the compression spring, it is easy to lock. During the rotation of the conveyor device, the cleaning cotton can slide along the inner wall of the frame with the help of the power of the conveyor device, continuously cleaning the outer surface of the conveyor device, effectively removing residual glue, paper scraps and other impurities from the surface of the conveyor device, preventing their accumulation from affecting the stability of the carton conveying and the subsequent glue spraying effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the flexible hose of this utility model;

[0019] Figure 4 This is a schematic diagram of the passive tooth structure of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A;

[0021] Figure 6 This is a schematic diagram of the cleaning device of this utility model;

[0022] Figure 7 This utility model Figure 6 A magnified structural diagram at point B in the middle.

[0023] In the diagram: 1. Frame; 2. Glue spraying device; 20. U-shaped frame; 21. Hose; 22. Glue head; 23. Fixing ring; 24. Passive gear; 25. Active gear; 26. Support rod; 27. Compression spring; 28. Clamping tooth; 3. Conveying device; 4. Cleaning device; 40. Cleaning cotton; 41. Limiting strip; 42. Rotating rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0025] Example

[0026] Please see Figure 1-7 This utility model provides a technical solution: a spray adhesive equipment for corrugated cardboard box processing, comprising:

[0027] The frame 1 has a glue spraying device 2 fixedly connected to its top. The glue spraying device 2 is adjusted by rotation. The inner wall of the frame 1 is rotatably connected to a conveying device 3. The inner wall of the frame 1 is slidably connected to a cleaning device 4. The cleaning device 4 uses the rotation of the conveying device 3 to clean the outer surface of the conveying device 3. The conveying device 3 rotates on the inner wall of the frame 1 and is responsible for conveying corrugated boxes. The glue spraying device 2 is installed at the top of the frame 1 and can spray glue on the corrugated boxes that pass by. The cleaning device 4 uses the rotational power of the conveying device 3 to clean the outer surface of the conveying device 3.

[0028] The glue spraying device 2 includes a U-shaped frame 20. The inner wall of the U-shaped frame 20 has a through cavity. A hose 21 is fixedly connected to the outer wall of the U-shaped frame 20. The bottom end of the hose 21 is fixedly connected to a glue head 22 by bolts. The bottom end of the U-shaped frame 20 is fixedly connected to the top end of the frame body 1. The outer wall of the hose 21 is arranged in a linear array along the outer wall of the U-shaped frame 20. First, the feed pipe on the outer wall of the U-shaped frame 20 is connected to the external glue storage tank, so that the glue enters the through cavity inside the U-shaped frame 20 through the feed pipe. Then, the motor of the conveying device 3 is started, and the motor drives the conveyor belt to convey the entire equipment into operation. Then, the operator can place the workpiece on the conveying device 3 for continuous glue spraying.

[0029] A fixed ring 23 is fixedly connected to the outer wall of the hose 21. A passive tooth 24 is rotatably connected to the inner wall of the fixed ring 23. An active tooth 25 is engaged on the outer wall of the passive tooth 24. When it is necessary to adjust the glue spraying angle according to the different shapes and specifications of corrugated cardboard boxes, the operator operates the active tooth 25. Since the active tooth 25 and the passive tooth 24 fixed in the fixed ring 23 on the outer wall of the hose 21 are engaged with each other, the rotation of the active tooth 25 will drive the passive tooth 24 to rotate, thereby causing the hose 21 and the glue head 22 to rotate, thus changing the glue spraying angle.

[0030] A support rod 26 is rotatably connected to the outer wall of the active tooth 25. A compression spring 27 is fixedly connected to the outer wall of the support rod 26. A locking tooth 28 is fixedly connected to the end of the compression spring 27 away from the support rod 26. The top of the support rod 26 is fixedly connected to the outer wall of the U-shaped frame 20. The inner wall of the locking tooth 28 is fixedly connected to the inner wall of the support rod 26 through a rotating shaft, and the rotating shaft is fixedly connected to the inner wall of the locking tooth 28. The outer wall of the locking tooth 28 is slidably connected to the outer wall of the active tooth 25. After the angle of the glue head 22 is adjusted, the compression spring 27 uses the pressure provided by the support rod 26 to make the locking tooth 28 engage in the tooth groove of the active tooth 25, thereby locking the active tooth 25 and preventing it from rotating during the glue spraying process. This ensures the stability of the glue spraying angle, improves the accuracy and flexibility of the glue spraying, and ensures that the glue evenly covers the area of ​​the carton to be sprayed.

[0031] The cleaning device 4 includes a cleaning cotton 40. The outer wall of the cleaning cotton 40 is slidably connected to a limiting strip 41 via a fixed plate. A rotating rod 42 is rotatably connected to the inner wall of the limiting strip 41. The outer wall of the cleaning cotton 40 is slidably connected to the inner wall of the frame 1. The bottom end of the cleaning cotton 40 is slidably connected to the conveying device 3. The outer wall of the rotating rod 42 is fixedly connected to the outer wall of the frame 1. When the conveying device 3 rotates, friction is generated between the conveying device 3 and the cleaning cotton 40. This friction provides the cleaning cotton 40 with the motive force to move. The outer wall of the cleaning cotton 40 is slidably connected to the limiting strip 41 via a fixed plate. The rotating rod 42, which is rotatably connected inside the limiting strip 41, is fixed to the outer wall of the frame 1. This allows the cleaning cotton 40 to slide along the inner wall of the frame 1 under the action of friction.

[0032] In use, this utility model mainly consists of a frame 1, a glue spraying device 2, a conveying device 3, and a cleaning device 4.

[0033] The conveying device 3 rotates on the inner wall of the frame 1 and is responsible for conveying corrugated boxes. The glue spraying device 2 is installed at the top of the frame 1 and can spray glue on the corrugated boxes that pass through. The cleaning device 4 uses the rotational power of the conveying device 3 to clean the outer surface of the conveying device 3.

[0034] First, connect the feed pipe on the outer wall of the U-shaped frame 20 to the external glue storage tank, so that the glue enters the through cavity inside the U-shaped frame 20 through the feed pipe. Then, start the motor of the conveyor device 3, and the motor drives the conveyor belt to convey the entire equipment into operation. Then, the operator can place the processing object on the conveyor device 3 for continuous glue spraying.

[0035] When it is necessary to adjust the glue spraying angle according to the different shapes and specifications of corrugated cardboard boxes, the operator operates the active tooth 25. Since the active tooth 25 meshes with the passive tooth 24 fixed in the fixing ring 23 on the outer wall of the hose 21, the rotation of the active tooth 25 will drive the passive tooth 24 to rotate, thereby causing the hose 21 and the glue head 22 to rotate, thus changing the glue spraying angle.

[0036] After the angle of the glue head 22 is adjusted, the compression spring 27, with the pressure provided by the support rod 26, causes the locking tooth 28 to engage in the groove of the active tooth 25, thereby locking the active tooth 25 and preventing it from rotating during the glue spraying process. This ensures the stability of the glue spraying angle, improves the accuracy and flexibility of the glue spraying, and ensures that the glue evenly covers the area of ​​the carton to be sprayed.

[0037] When the conveying device 3 rotates, friction is generated between the conveying device 3 and the cleaning cotton 40. This friction provides the cleaning cotton 40 with the motive force to move. The outer wall of the cleaning cotton 40 is slidably connected to the limiting strip 41 through the fixing plate. The rotating rod 42, which is rotatably connected inside the limiting strip 41, is fixed to the outer wall of the frame 1. This allows the cleaning cotton 40 to slide along the inner wall of the frame 1 under the action of friction.

[0038] During the sliding process, the cleaning cotton 40 continuously cleans the outer surface of the conveying device 3, effectively removing residual glue, paper scraps and other impurities from the surface of the conveying device 3, preventing these impurities from accumulating and affecting the stability of the carton conveying and the subsequent glue spraying effect. When the cleaning cotton 40 needs to be replaced, simply rotate the limit bar 41 to pull the cleaning cotton 40 out from the inner wall of the frame 1.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glue spraying apparatus for corrugated box processing, comprising: The frame (1) is characterized by: The top of the frame (1) is fixedly connected to a glue spraying device (2), which is adjusted by rotation. The inner wall of the frame (1) is rotatably connected to a conveying device (3), and the inner wall of the frame (1) is slidably connected to a cleaning device (4). The cleaning device (4) cleans the outer surface of the conveying device (3) by rotating the conveying device (3). The glue spraying device (2) includes a U-shaped frame (20), the inner wall of the U-shaped frame (20) has a through cavity, the outer wall of the U-shaped frame (20) is fixedly connected to a hose (21), the bottom end of the hose (21) is fixedly connected to a glue head (22) by bolts, the bottom end of the U-shaped frame (20) is fixedly connected to the top end of the frame body (1), and the outer wall of the hose (21) is arranged in a linear array along the outer wall of the U-shaped frame (20).

2. The glue spraying device for processing corrugated paper boxes according to claim 1, characterized in that: The outer wall of the hose (21) is fixedly connected to a fixing ring (23), the inner wall of the fixing ring (23) is rotatably connected to a passive tooth (24), and the outer wall of the passive tooth (24) is engaged with an active tooth (25).

3. The glue spraying apparatus for processing corrugated paper boxes according to claim 2, characterized in that, The outer wall of the active tooth (25) is rotatably connected to a support rod (26), and the outer wall of the support rod (26) is fixedly connected to a compression spring (27). The end of the compression spring (27) away from the support rod (26) is fixedly connected to a locking tooth (28).

4. The glue spraying device for processing corrugated paper boxes according to claim 3, characterized in that: The top of the support rod (26) is fixedly connected to the outer wall of the U-shaped frame (20). The inner wall of the locking tooth (28) is fixedly connected to the inner wall of the support rod (26) through a rotating shaft, and the rotating shaft is fixedly connected to the inner wall of the locking tooth (28). The outer wall of the locking tooth (28) is slidably connected to the outer wall of the active tooth (25).

5. The glue spraying apparatus for processing corrugated paper boxes according to claim 1, characterized in that: The cleaning device (4) includes a cleaning cotton (40), the outer wall of which is slidably connected to a limiting strip (41) via a fixing plate, and the inner wall of the limiting strip (41) is rotatably connected to a rotating rod (42).

6. The glue spraying apparatus for processing corrugated paper boxes according to claim 5, characterized in that: The outer wall of the cleaning cotton (40) is slidably connected to the inner wall of the frame (1), the bottom end of the cleaning cotton (40) is slidably connected to the conveying device (3), and the outer wall of the rotating rod (42) is fixedly connected to the outer wall of the frame (1).