Automatic glue spraying device for paper box

Abstract

The utility model relates to an automatic glue spraying device for a paper box, which comprises a mounting frame, a glue spraying assembly, a travel switch and a conveying belt, the glue spraying assembly is arranged on the mounting frame; the travel switch is arranged on one side of the conveying belt. According to the automatic glue spraying assembly, the glue spraying process is accurately controlled, the production efficiency is remarkably improved, the glue spraying uniformity is ensured, the manual operation intensity is reduced, meanwhile, the environmental pollution problem caused by glue sputtering is reduced, and the automatic glue spraying assembly is suitable for large-scale paper box production enterprises and has high practical value and popularization prospects.

Description

Technical Field

[0001] This utility model relates to the field of paper box manufacturing, specifically to an automatic glue spraying device for paper boxes. Background Technology

[0002] In the forming and processing of cardboard boxes, it is usually necessary to apply glue locally to the wing-shaped flanges to ensure that the sides of the cardboard box are firmly bonded. Currently, the industry mainly uses manual hand-held glue guns for glue application, but this method has many problems. First, because cardboard boxes have a three-dimensional structure and many panels requiring glue application, workers must manually apply glue to each panel, resulting in low production efficiency and difficulty in meeting the needs of mass production. Second, manual glue application is greatly affected by the operator's experience, which can easily lead to uneven glue application and deviations in the application position, thus affecting the bonding effect and potentially causing insufficient or excessive glue application, affecting the quality of the finished product. In addition, the manual glue gun operation is labor-intensive, and workers are prone to fatigue after prolonged operation, further reducing the accuracy and stability of glue application. At the same time, during manual glue application, glue is prone to splattering, causing residual glue to adhere to the equipment and work area. This residual glue is difficult to clean after it hardens, which not only affects the normal operation of the equipment, but also increases maintenance costs and cleaning difficulty. Therefore, how to improve glue application efficiency, ensure uniform glue application, reduce the labor intensity of workers, and reduce environmental pollution caused by glue splatter has become an urgent problem to be solved in the cardboard box manufacturing industry. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, this utility model provides an automatic glue spraying device for paper boxes. It proposes an automated, high-precision and high-efficiency solution to address the problems of low efficiency, unstable glue quality, high labor intensity and serious pollution of the working environment caused by manual hand-held glue spraying in the existing technology.

[0004] The technical solution of this utility model is an automatic glue spraying device for paper boxes, including a mounting frame, a glue spraying assembly, a limit switch, and a conveyor belt. The mounting frame is disposed at the top of the conveyor belt; the glue spraying assembly is disposed on the mounting frame; and the limit switch is disposed on one side of the conveyor belt.

[0005] The technical advantages of this invention are as follows: The automatic glue spraying device uses an automatic conveyor belt to transport cardboard boxes and a limit switch to control the start and stop of the spraying device, achieving precise, uniform, and rapid localized glue spraying operations. This significantly improves production efficiency, reduces reliance on manual operation, and effectively meets the needs of mass production. The fixed glue spraying mechanism ensures consistent spraying angle and glue volume, avoiding uneven glue distribution that can occur with manual operation, thus improving bonding quality and product stability. Automated operation reduces the need for workers to manually operate the glue gun, lowering labor intensity and preventing spraying deviations due to operator fatigue. The device employs a closed or precision spraying design, reducing glue splashing, lowering the risk of contamination of equipment and work areas, reducing subsequent cleaning and maintenance costs, and optimizing the production environment. This invention has a simple structure, is easy to operate, effectively improves the accuracy and consistency of the glue spraying process, and reduces production costs. It is suitable for large-scale cardboard box production lines and has high practical value and promising prospects for widespread application. Attached Figure Description

[0006] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0007] Figure 2 This is a three-dimensional exploded view of the present invention;

[0008] Figure 3 This is a schematic diagram of the limit switch of this utility model;

[0009] Figure 4 This is a schematic diagram of the adhesive spraying assembly of this utility model;

[0010] Figure 5 This is a diagram showing the working state of this utility model.

[0011] In the diagram: 1. Mounting bracket; 1-1. Crossbeam; 1-2. Column; 2. Adhesive spraying assembly; 2-1. Spray gun; 2-2. Hanger; 3. Limit switch; 4. Conveyor belt; 5. Cardboard box; 5-1. Wing-shaped flange. Detailed Implementation

[0012] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, but the scope of protection of this utility model is not limited thereto.

[0013] like Figures 1 to 5 As shown, an automatic glue spraying device for paper boxes includes a mounting frame 1, a glue spraying assembly 2, a limit switch 3, and a conveyor belt 4. The mounting frame 1 is fixed above the conveyor belt 4 to support the glue spraying assembly 2 and ensure the stability and accuracy of the glue spraying operation.

[0014] The mounting frame 1 consists of a crossbeam 1-1 and uprights 1-2. The crossbeam 1-1 spans the conveyor belt 4, and both sides are fixed to the ground or the frame of the conveyor belt 4 by the uprights 1-2 to ensure the stability of the overall structure. The mounting frame 1 is made of metal or high-strength alloy materials to ensure sufficient load-bearing capacity and durability during long-term use. At the same time, the height and width of the crossbeam 1-1 can be adjusted according to different specifications of cardboard boxes 5 to accommodate different sizes of cardboard boxes 5.

[0015] The glue spraying assembly 2 includes a spray gun 2-1 and a bracket 2-2. The bracket 2-2 is fixed on the crossbeam 1-1 and its position can be adjusted along the crossbeam 1-1 to accommodate the glue spraying needs of different sized cardboard boxes 5. Two glue spraying assemblies 2 are symmetrically mounted on the crossbeam 1-1 of the mounting frame 1. The spray gun 2-1 uses a high-precision electronically controlled nozzle, which can accurately control the amount and range of glue sprayed, ensuring uniform glue spraying on the wing-shaped flange 5-1 of the cardboard box 5. The spray gun 2-1 is connected to the glue supply system, delivering glue through a hose or pipe, and the spray volume is controlled by the electronic control system. The glue spraying assembly 2 adopts an adjustable-angle spraying structure, which can flexibly adjust the spraying direction according to the angle of the wing-shaped flange 5-1 of different cardboard boxes 5 to ensure optimal glue spraying effect.

[0016] Limit switch 3 is installed on one side of conveyor belt 4, and can be either a touch-sensitive or photoelectric sensor switch. When cardboard box 5 moves with conveyor belt 4 to the designated glue spraying area, limit switch 3 is triggered, sending a signal to the control system to control spray gun 2-1 to start spraying glue. After cardboard box 5 has completely passed through the glue spraying area, limit switch 3 closes, and spray gun 2-1 stops spraying glue, thereby achieving precise control of glue spraying time and position, avoiding unnecessary glue waste, and improving production efficiency.

[0017] Conveyor belt 4 is used to transport cardboard boxes 5. Its operating speed can be adjusted according to production needs to ensure that the glue spraying operation is synchronized with the transport of cardboard boxes 5. The surface of conveyor belt 4 can be coated with a high-temperature resistant, non-stick coating to prevent glue from splashing and adhering, thus affecting the transport.

[0018] Before use, connect the limit switch 3 to the relay controlling the glue spraying device. During use, first adjust the height of the mounting bracket 1 and the position of the spray gun 2-1 of the glue spraying assembly 2 according to the size of the cardboard box 5, ensuring the glue spraying area is aligned with the wing-shaped flange 5-1 of the cardboard box 5. Simultaneously, set the glue spraying time and glue spray volume. The cardboard box 5 is placed horizontally on the conveyor belt 4, which runs at a set speed, transporting the cardboard box 5 to the glue spraying area. When the cardboard box 5 moves to the position of the limit switch 3, the limit switch 3 is triggered, sending a signal to the control system to control the spray gun 2-1 to start the glue spraying assembly 2, precisely spraying glue onto the wing-shaped flange 5-1 of the cardboard box 5, ensuring even glue coverage. After glue spraying, the cardboard box 5 continues to move forward with the conveyor belt 4. When the cardboard box 5 has completely passed the limit switch 3, the limit switch 3 resets, and the glue spraying assembly 2 stops spraying glue. The glued cardboard box 5 then enters the subsequent bonding process. The entire glue spraying process is automatically cyclical, ensuring efficient and continuous operation.

Claims

1. An automatic glue spraying device for paper boxes, characterized in that: The device includes a mounting bracket (1), a glue spraying assembly (2), a limit switch (3), and a conveyor belt (4). The mounting bracket (1) is located at the top of the conveyor belt (4); the glue spraying assembly (2) is located on the mounting bracket (1); and the limit switch (3) is located on one side of the conveyor belt (4).

2. The automatic glue spraying device for paper boxes according to claim 1, characterized in that: The mounting frame (1) includes a crossbeam (1-1) and a column (1-2), the column (1-2) being vertically arranged on both sides of the conveyor belt (4).

3. The automatic glue spraying device for paper boxes according to claim 1, characterized in that: The glue spraying assembly (2) includes a spray gun (2-1) and a bracket (2-2). The two glue spraying assemblies (2) are mounted on the crossbeam (1-1) of the mounting frame (1) via the bracket (2-2). The position of the glue spraying assembly (2) can be set according to the size of the cardboard box (5) and the glue spraying position.

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