High-uniformity gluing device for box pasting production and processing
By using an air pressure balancing mechanism and a glue outlet design, the problems of unstable air pressure and difficulty in controlling the discharge rate during glue paste mixing are solved, achieving stability and safety in glue paste discharge and improving the efficiency and quality of box making.
Patent Information
- Application Number
- CN202520169889.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing glue-applying devices used in box-making production suffer from unstable air pressure during glue mixing, posing safety hazards. Furthermore, they are difficult to precisely control the glue discharge rate, affecting production efficiency and quality.
It adopts a pneumatic pressure balancing mechanism and a precisely controlled glue outlet design. The first drive motor controls the alternating overlap of the glue outlets, and the pneumatic pressure balancing mechanism automatically adjusts the internal air pressure to ensure the stability and safety of the glue paste output.
It achieves precise control of the paste discharge rate, improves production efficiency and quality, enhances safety, and prevents safety hazards and pollution caused by excessive or insufficient air pressure.
Smart Images

Figure CN223888348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of box gluing production equipment technology, and in particular to a gluing device for box gluing production and processing with high uniformity. Background Technology
[0002] With the continuous improvement of economic level and the continuous development of packaging industry, box gluing machine has been widely used. The application of box gluing machine is the last process of packaging box processing. It is to fold and glue the printed and die-cut cardboard. Before the box gluing machine is used, glue must be applied to the cardboard through the gluing device.
[0003] A search revealed Chinese Patent Publication No. CN215744486U, which discloses a glue-applying device for high-uniformity box-making production. The device includes a cover plate, a second chamber, and a shell. Observation windows are installed on both sides of one end of the shell, and support columns are installed on both sides of the bottom end of the shell. A discharge pipe is installed at the bottom of one side of the shell. The second chamber is installed at the top of the shell, and the first chamber is installed at the bottom of the second chamber. This technical solution lacks a mechanism for balancing the internal air pressure during glue mixing, which may lead to unstable air pressure inside the mixing tank. During heating and mixing, excessively high air pressure can pose safety hazards. Furthermore, unstable air pressure may affect the mixing effect and quality of the glue. Additionally, this technical solution uses a hydraulic cylinder to drive an extrusion plate to extrude the glue during discharge, making it difficult to precisely control the discharge rate to coordinate with other steps in box-making production. Therefore, this invention provides a glue-applying device for high-uniformity box-making production to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a glue-applying device for box-making with high uniformity, which can effectively and conveniently balance the air pressure inside the cavity during glue paste mixing and can accurately control the glue paste discharge rate, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a glue application device for high-uniformity box gluing production, comprising: a glue mixing tank, a glue outlet pipe fixedly connected to the outside of the glue mixing tank, a first glue outlet baffle fixedly connected to the inside of the glue outlet pipe, four sets of first glue outlet holes opened on the inside of the first glue outlet baffle, a second glue outlet baffle rotatably connected to the side of the first glue outlet baffle, four sets of second glue outlet holes opened on the inside of the second glue outlet baffle, a first drive motor fixedly connected to the side of the first glue outlet baffle, an upper sealing top cover provided above the glue mixing tank, a second drive motor fixedly connected above the upper sealing top cover, a stirring shaft provided below the upper sealing top cover, and two sets of wall scraping scrapers fixedly connected to the side of the stirring shaft.
[0006] As a further embodiment of this utility model: an air pressure balancing mechanism is fixedly connected above the upper sealing top cover. The air pressure balancing mechanism includes an outer fixed housing. A spring fixing cavity is opened on the inner side of the outer fixed housing. Two sets of side air outlets extending to the outer side of the outer fixed housing are opened on the inner side of the spring fixing cavity. A support spring is fixedly connected to the inner side of the spring fixing cavity. A sealing gasket is fixedly connected to the other end of the support spring. A manual pull rod is fixedly connected above the sealing gasket.
[0007] As a further improvement of this utility model: three sets of support feet are fixedly connected to the bottom of the paste mixing tank, and multiple sets of electric heating tubes are installed inside the paste mixing tank.
[0008] As a further improvement of this utility model, the dispensing tube extends from the outside of the glue mixing tank to the inside of the glue mixing tank.
[0009] As a further embodiment of this utility model: the positions and sizes of the first and second glue outlet holes correspond to each other, and the rotating shaft of the first drive motor passes through the first glue outlet baffle and is fixedly connected to the second glue outlet baffle.
[0010] As a further embodiment of this utility model: the shaft of the second drive motor passes through the upper sealing top cover and is fixedly connected to the stirring shaft, and the scraper is attached to the inner wall of the paste mixing tank.
[0011] As a further improvement of this utility model, the spring fixing cavity is designed with an inverted convex shape, and the narrow opening at the lower end extends through to the bottom of the outer fixing shell.
[0012] As a further improvement of this utility model: the size of the sealing gasket is slightly smaller than the upper wide opening of the spring fixing cavity and slightly larger than the lower narrow opening of the spring fixing cavity, and the manual pull rod passes through the top of the outer fixing shell.
[0013] As a further improvement of this utility model: when the support spring naturally elongates without being subjected to external force, the sealing gasket is tightly fitted to the narrow opening at the lower end of the spring fixing cavity to seal it.
[0014] As a further improvement of this invention, the electric heating element is connected to an external power source via an electric wire.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. In this utility model, the precise control of the first drive motor to alternately overlap the first and second glue outlets is used to control the on / off state and discharge rate of the glue paste, thereby making the production process more flexible and improving the efficiency and quality of glue box production.
[0017] 2. The air pressure balancing mechanism in this invention can automatically balance the internal air pressure during the glue mixing process, preventing safety hazards caused by excessive air pressure. At the same time, when the air pressure returns to normal, the sealing gasket can re-adhere to the narrow opening at the bottom, effectively isolating the internal and external environments and preventing external contamination. If the internal air pressure is too low due to glue discharge during the glue dispensing process, the manual lever can be manually lifted to introduce air and assist the glue to be discharged smoothly, greatly improving the safety and convenience of glue box production and processing. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the wall scraper in this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the first and second glue dispensing baffles in this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the electric heating tube in this utility model;
[0022] Figure 5 This is a schematic diagram of the air pressure balance mechanism in this utility model.
[0023] In the diagram: 1. Paste mixing tank; 2. Dispensing pipe; 3. First dispensing baffle; 4. First dispensing hole; 5. Second dispensing baffle; 6. Second dispensing hole; 7. First drive motor; 8. Upper sealing top cover; 9. Second drive motor; 10. Stirring shaft; 11. Wall scraper; 12. Air pressure balancing mechanism; 121. Outer fixed housing; 122. Spring fixing cavity; 123. Side air outlet; 124. Support spring; 125. Sealing gasket; 126. Manual pull rod; 13. Support foot; 14. Electric heating element. 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] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.
[0026] Reference Figures 1 to 5 In this embodiment of the present invention, a glue application device for producing and processing glued boxes with high uniformity includes: a glue mixing tank 1, a glue outlet pipe 2 fixedly connected to the outside of the glue mixing tank 1, a first glue outlet baffle 3 fixedly connected to the inside of the glue outlet pipe 2, four sets of first glue outlet holes 4 opened on the inside of the first glue outlet baffle 3, a second glue outlet baffle 5 rotatably connected to the side of the first glue outlet baffle 3, four sets of second glue outlet holes 6 opened on the inside of the second glue outlet baffle 5, a first drive motor 7 fixedly connected to the side of the first glue outlet baffle 3, an upper sealing top cover 8 provided above the glue mixing tank 1, a second drive motor 9 fixedly connected above the upper sealing top cover 8, a stirring shaft 10 provided below the upper sealing top cover 8, and two sets of wall scraping scrapers 11 fixedly connected to the side of the stirring shaft 10;
[0027] A pressure balancing mechanism 12 is fixedly connected above the upper sealing top cover 8. The pressure balancing mechanism 12 includes an outer fixed housing 121. A spring fixing cavity 122 is opened inside the outer fixed housing 121. Two sets of side air outlets 123 are opened inside the spring fixing cavity 122, extending to the outside of the outer fixed housing 121. A support spring 124 is fixedly connected inside the spring fixing cavity 122. A sealing gasket 125 is fixedly connected to the other end of the support spring 124. A manual pull rod 126 is fixedly connected above the sealing gasket 125. When gas is generated during the glue production process, the internal pressure of the glue mixing tank 1 is reduced. When the pressure is too high, the air pressure will automatically push the sealing gasket 125 upward. At this time, the support spring 124 will contract, allowing gas to enter from the narrow opening at the lower end of the spring fixing chamber 122 and escape through the side air outlet 123, maintaining the air pressure balance inside the tank. When the air pressure returns to normal, the support spring 124 returns to its original shape, and the sealing gasket 125 re-fits the narrow opening at the lower end to prevent external contamination. If the discharge of the glue causes the internal air pressure to be too low, the manual lever 126 can be manually lifted to allow air to enter the narrow opening at the lower end of the spring fixing chamber 122 through the side air outlet 123, thereby replenishing the glue mixing tank 1 and assisting the glue to be discharged smoothly.
[0028] Three sets of support feet 13 are fixedly connected to the bottom of the glue mixing tank 1. Multiple sets of electric heating tubes 14 are installed inside the glue mixing tank 1. The support feet 13 stably support the entire device to ensure operational stability. After the electric heating tubes 14 are connected to an external power source through wires, they can heat the glue and adjust its viscosity to meet different production process requirements. The glue outlet pipe 2 runs from the outside of the glue mixing tank 1 to the inside of the glue mixing tank 1, allowing the glue to flow smoothly out of the mixing tank for subsequent processing operations.
[0029] The positions and sizes of the first glue outlet 4 and the second glue outlet 6 are corresponding. The rotating shaft of the first drive motor 7 passes through the first glue outlet baffle 3 and is fixedly connected to the second glue outlet baffle 5. Through the precise correspondence design of the first glue outlet 4 and the second glue outlet 6, when the first drive motor 7 starts, its rotating shaft drives the second glue outlet baffle 5 to rotate, so that the first glue outlet 4 and the second glue outlet 6 will alternately overlap, thereby controlling the material discharge switch and adjusting the material discharge rate to ensure that the glue flows out evenly and stably.
[0030] The shaft of the second drive motor 9 passes through the upper sealed top cover 8 and is fixedly connected to the stirring shaft 10. The wall scraper 11 is attached to the inner wall of the paste mixing tank 1. The second drive motor 9 drives the stirring shaft 10 and the wall scraper 11 to rotate, scraping against the inner wall of the mixing tank, effectively preventing the paste from sticking together and ensuring the mixing effect and paste quality.
[0031] The spring fixing cavity 122 has an inverted convex design, with a narrow opening at the lower end extending to the bottom of the outer fixing housing 121. The size of the sealing gasket 125 is slightly smaller than the wide opening at the upper end of the spring fixing cavity 122 and slightly larger than the narrow opening at the lower end of the spring fixing cavity 122. The manual pull rod 126 extends through the top of the outer fixing housing 121. The size design of the sealing gasket 125 ensures that it can fit tightly against the narrow opening at the lower end in a static state to prevent gas leakage. At the same time, it facilitates the operation of the manual pull rod 126. When the support spring 124 is not subjected to external force and naturally extends, the sealing gasket 125 fits tightly against the narrow opening at the lower end of the spring fixing cavity 122 to seal it. The natural state of the support spring 124 ensures that the sealing gasket 125 fits tightly, effectively isolating the internal and external environments and preventing contamination.
[0032] The electric heating tube 14 is connected to an external power source via an electric wire. After the electric heating tube 14 is connected to an external power source via an electric wire, it can heat the glue paste as needed, adjust its physical properties, and adapt to different glue box processing requirements.
[0033] The working principle of this utility model is as follows: First, place the entire device on a stable ground, connect the external power supply to the electric heating tube 14, set the heating temperature as needed, open the upper sealed top cover 8 and pour the glue paste raw material into the glue paste mixing tank 1.
[0034] The electric heating element 14 starts working to heat the paste to the required viscosity. At the same time, the second drive motor 9 is turned on. Its shaft passes through the upper sealing top cover 8 and is fixedly connected to the stirring shaft 10. It drives the stirring shaft 10 and the two sets of wall scrapers 11 to rotate. The wall scrapers 11 scrape the inner wall of the mixing tank in close contact, which effectively prevents the paste from sticking together and ensures the mixing effect and the quality of the paste. At the same time, it can also drive the paste to flow in the mixing tank to ensure that the paste is heated evenly.
[0035] During the mixing of the paste, if gas is generated and the internal air pressure of the paste mixing tank 1 becomes too high, the air pressure will automatically push the sealing gasket 125 in the air pressure balancing mechanism 12 upward. At this time, the support spring 124 contracts, allowing gas to enter from the narrow opening at the lower end of the spring fixing cavity 122 and escape through the side air outlet 123, maintaining the air pressure balance inside the tank. When the air pressure returns to normal, the support spring 124 returns to its original shape, and the sealing gasket 125 re-fits the narrow opening at the lower end to prevent external contamination.
[0036] When glue needs to be dispensed, the first drive motor 7 is started. Its rotating shaft passes through the first glue dispensing baffle 3 and is fixedly connected to the second glue dispensing baffle 5, driving the second glue dispensing baffle 5 to rotate. Through the precise corresponding design of the first glue dispensing hole 4 and the second glue dispensing hole 6, the first glue dispensing hole 4 and the second glue dispensing hole 6 will alternately overlap, thereby controlling the material dispensing switch and adjusting the material dispensing rate. The glue paste flows smoothly out from the inside of the glue paste mixing tank 1 through the glue dispensing pipe 2, which is convenient for subsequent processing operations.
[0037] If the internal air pressure is too low due to the discharge of glue during the glue dispensing process, the manual lever 126 can be manually lifted to allow air to enter the narrow opening at the lower end of the spring fixing chamber 122 through the side air outlet 123, thereby replenishing the glue mixing tank 1 and assisting in the smooth discharge of glue.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A glue-applying device for box-making and processing with high uniformity, characterized in that, include: A paste mixing tank (1) is provided with a glue outlet pipe (2) fixedly connected to the outside of the paste mixing tank (1). A first glue outlet baffle (3) is fixedly connected to the inside of the glue outlet pipe (2). Four sets of first glue outlet holes (4) are opened on the inside of the first glue outlet baffle (3). A second glue outlet baffle (5) is rotatably connected to the side of the first glue outlet baffle (3). Four sets of second glue outlet holes (6) are opened on the inside of the second glue outlet baffle (5). A first drive motor (7) is fixedly connected to the side of the first glue outlet baffle (3). An upper sealing top cover (8) is provided above the paste mixing tank (1). A second drive motor (9) is fixedly connected above the upper sealing top cover (8). A stirring shaft (10) is provided below the upper sealing top cover (8). Two sets of wall scraping scrapers (11) are fixedly connected to the side of the stirring shaft (10).
2. The gluing device for high-uniformity box gluing production and processing according to claim 1, characterized in that, A pressure balancing mechanism (12) is fixedly connected above the upper sealing top cover (8). The pressure balancing mechanism (12) includes an outer fixed housing (121). A spring fixing cavity (122) is opened inside the outer fixed housing (121). Two sets of side air outlets (123) that penetrate to the outside of the outer fixed housing (121) are opened inside the spring fixing cavity (122). A support spring (124) is fixedly connected inside the spring fixing cavity (122). A sealing gasket (125) is fixedly connected to the other end of the support spring (124). A manual pull rod (126) is fixedly connected above the sealing gasket (125).
3. The gluing device for high-uniformity box gluing production and processing according to claim 1, characterized in that, The paste mixing tank (1) is fixedly connected to three sets of support feet (13) and the paste mixing tank (1) is equipped with multiple sets of electric heating tubes (14).
4. The gluing device for high-uniformity box gluing production and processing according to claim 1, characterized in that, The dispensing pipe (2) extends from the outside of the paste mixing tank (1) to the inside of the paste mixing tank (1).
5. The gluing device for high-uniformity box gluing production and processing according to claim 1, characterized in that, The positions and sizes of the first glue outlet (4) and the second glue outlet (6) are corresponding. The rotating shaft of the first drive motor (7) passes through the first glue outlet baffle (3) and is fixedly connected to the second glue outlet baffle (5).
6. The gluing device for high-uniformity box gluing production and processing according to claim 1, characterized in that, The shaft of the second drive motor (9) passes through the upper sealing top cover (8) and is fixedly connected to the stirring shaft (10). The scraper (11) is attached to the inner wall of the paste mixing tank (1).
7. The gluing device for high-uniformity box gluing production and processing according to claim 2, characterized in that, The spring fixing cavity (122) has an inverted convex design, with a narrow opening at the lower end extending to the bottom of the outer fixing shell (121).
8. The gluing device for high-uniformity box gluing production and processing according to claim 2, characterized in that, The size of the sealing gasket (125) is slightly smaller than the upper wide opening of the spring fixing cavity (122) and slightly larger than the lower narrow opening of the spring fixing cavity (122). The manual pull rod (126) passes through the top of the outer fixing shell (121).
9. The gluing device for high-uniformity box gluing production and processing according to claim 2, characterized in that, When the support spring (124) naturally elongates without being subjected to external force, the sealing gasket (125) tightly fits against the narrow opening at the lower end of the spring fixing cavity (122) to seal it.
10. The gluing device for high-uniformity box gluing production and processing according to claim 3, characterized in that, The electric heating element (14) is connected to an external power source via an electric wire.
Citation Information
Patent Citations
High-uniformity gluing device for box pasting production and processing
CN215744486U