Gluing and heating device of packaging carton veneering machine
By introducing a heating device and an adsorption box into the laminating machine, the problem of low cardboard adhesion was solved, resulting in better adhesion and environmental protection.
Patent Information
- Application Number
- CN202520647856.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-07
- Estimated Expiration
- 2035-04-08
AI Technical Summary
Existing laminating machines have low adhesive strength between cardboards after gluing, resulting in poor bonding performance.
A heating device for applying glue to a packaging cardboard laminating machine was designed, comprising a heating box and an adsorption box. The heating box increases the activity of glue molecules, and the adsorption box adsorbs the odor generated during glue heating, thereby enhancing the bonding effect of the cardboard and improving the working environment.
The heating device improves the bonding speed and uniformity of the adhesive, enhances the bonding effect between cardboards, and at the same time, the adsorption box purifies odors and improves the working environment.
Smart Images

Figure CN224087197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adhesive coating technology for laminating machines, specifically to an adhesive coating heating device for a packaging paper box laminating machine. Background Technology
[0002] In the production of packaging cartons, glue is an essential material. Applying glue can enhance the grade of the cartons, making their surface smoother and shinier, while also providing moisture-proof, waterproof, stain-proof, and wear-resistant properties. At the same time, using glue to bond the cardboard can increase the strength of the cartons. The glue application on the surface of cartons is generally done by a laminating machine.
[0003] Currently, when existing laminating machines apply glue to the surface of cardboard and then overlap and bond two or more layers of cardboard, the adhesive strength between the cardboards is low, resulting in poor bonding and affecting the bonding effect between the cardboards. Utility Model Content
[0004] The purpose of this utility model is to provide a heating device for applying glue to a packaging paper box laminating machine, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a gluing and heating device for a packaging paper box laminating machine, comprising a processing table, two equipment boxes mounted on the front and rear of the upper part of the processing table, a conveying roller rotatably connected between the two equipment boxes, a gluing roller rotatably mounted between the two equipment boxes above the conveying roller, a guide roller mounted between the two equipment boxes on one side of the gluing roller, a glue tank mounted on the upper part of the equipment boxes, a heating box mounted on the upper part of the processing table on one side of the glue tank, through grooves provided at both ends of the heating box, a connecting pipe mounted at one end of the heating box, and an adsorption box mounted at one end of the connecting pipe.
[0006] Preferably, a plurality of glue outlet pipes are installed at the lower end of the glue tank, and the plurality of glue outlet pipes are all located between the glue coating roller and the glue guiding roller, wherein the glue guiding roller and the glue coating roller rotate in opposite directions.
[0007] Preferably, the heating box has a heating chamber inside, and an electric heating tube is installed inside the heating chamber.
[0008] Preferably, the inner walls of the heating chamber are all equipped with a heat insulation layer.
[0009] Preferably, the upper end of the adsorption box is provided with an installation groove, the upper end of the adsorption box is detachably installed with a cover plate, the lower end of the cover plate is installed with an installation mesh cover, the inside of the installation mesh cover is installed with activated carbon particles, and one end of the adsorption box is installed with an air outlet pipe.
[0010] Preferably, the cover plate is T-shaped, with its lower end inserted into the mounting groove, and a sealing ring is installed on the lower surface of the cover plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. The adhesive heating device of this packaging cardboard laminating machine heats the cardboard to be coated with adhesive by setting up a heating box. Heating increases the thermal movement of adhesive molecules, making the molecules in the adhesive more active and accelerating the adhesion between them. This facilitates subsequent drying operations and effectively improves the bonding effect between cardboards.
[0013] 2. The adhesive heating device of this packaging cardboard box laminating machine has an adsorption box. The activated carbon particles inside the adsorption box can adsorb most of the odors generated when the adhesive is heated, preventing the odors from being directly released and affecting the adhesive coating environment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a front sectional view of the present invention;
[0016] Figure 3 This is a cross-sectional view of the adsorption box of this utility model.
[0017] In the diagram: 1. Processing table; 2. Equipment box; 3. Conveyor roller; 4. Glue coating roller; 5. Glue guide roller; 6. Glue tank; 7. Heating box; 8. Connecting pipe; 9. Adsorption box; 10. Glue outlet pipe; 11. Heating chamber; 12. Electric heating tube; 13. Insulation layer; 14. Cover plate; 15. Mounting mesh cover; 16. Activated carbon granules; 17. Sealing ring; 18. Mounting groove; 19. Through groove; 20. Air outlet pipe. Detailed Implementation
[0018] 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.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] like Figures 1 to 3 As shown, the gluing and heating device for the packaging carton laminating machine in this embodiment includes a processing table 1. Two equipment boxes 2 are installed at the front and rear of the upper end of the processing table 1. The equipment boxes 2 provide power for the rotation of the conveying roller 3, the gluing roller 4, and the guide roller 5. The working principle inside the equipment boxes 2 is based on known prior art. A conveying roller 3 is rotatably connected between the two equipment boxes 2, and the conveying roller 3 is used to convey the cardboard for making packaging cartons. A gluing roller 4 is rotatably installed between the two equipment boxes 2 above the conveying roller 3, and the gluing roller 4 is used to apply glue to the cardboard for making packaging cartons. A guide roller 5 is installed between the two equipment boxes 2 on one side of the gluing roller 4, and the guide roller 5 is used to ensure uniform distribution of the glue. On the surface of the coating roller 4, a glue tank 6 is installed on the upper part of the equipment box 2. The glue tank 6 is used to store glue for timely addition. A heating box 7 is installed on the upper part of the processing table 1 on one side of the glue tank 6. The heating box 7 can increase the thermal motion of glue molecules, making the molecules in the glue more active and accelerating the reaction speed between them, thereby improving the bonding effect between the cardboard. Both ends of the heating box 7 are provided with through slots 19 for the cardboard to pass through the inside of the heating box 7. A connecting pipe 8 is installed at one end of the heating box 7, and an adsorption box 9 is installed at the other end of the connecting pipe 8. The adsorption box 9 is used to adsorb the odor generated when the glue is heated, preventing the odor from spreading.
[0021] Specifically, several glue outlet pipes 10 are installed at the lower end of the glue tank 6. All of the glue outlet pipes 10 are located between the glue coating roller 4 and the guide roller 5. The guide roller 5 and the glue coating roller 4 rotate in opposite directions. The glue flowing out of the glue outlet pipes 10 can fall between the glue coating roller 4 and the guide roller 5. As the guide roller 5 and the glue coating roller 4 rotate in opposite directions, the glue can be evenly distributed on the surface of the glue coating roller 4, which facilitates the glue coating roller 4 to perform uniform glue coating treatment.
[0022] Furthermore, the heating box 7 is equipped with a heating chamber 11, and an electric heating tube 12 is installed inside the heating chamber 11. The electric heating tube 12 is used to heat the inside of the heating chamber 11, thereby increasing the temperature inside the heating chamber 11. Heating can increase the thermal motion of the glue molecules, making the molecules in the glue more active and accelerating the reaction speed between them, which facilitates the pasting operation between cardboards.
[0023] Furthermore, the inner walls of the heating chamber 7 are all equipped with a heat insulation layer 13, which effectively prevents the external environment from affecting the internal temperature of the heating chamber 7.
[0024] Furthermore, the upper end of the adsorption box 9 is provided with an installation groove 18, and the upper end of the adsorption box 9 is detachably equipped with a cover plate 14. The lower end of the cover plate 14 is equipped with an installation mesh cover 15, and activated carbon particles 16 are installed inside the installation mesh cover 15. An exhaust pipe 20 is installed at one end of the adsorption box 9. A small part of the odor generated when the glue is heated is discharged through the channel 19, and some air enters the adsorption box 9 through the connecting pipe 8. The activated carbon particles 16 inside the adsorption box 9 adsorb the odor and discharge the purified odor through the exhaust pipe 20.
[0025] Furthermore, the cover plate 14 is T-shaped, with its lower end inserted into the mounting groove 18, and a sealing ring 17 is installed on the lower surface of the cover plate 14. The cover plate 14 and the adsorption box 9 can be connected by insertion, which facilitates the replacement of the activated carbon particles 16 later.
[0026] The usage method of this embodiment is as follows: During use, the glue inside the glue tank 6 falls between the glue coating roller 4 and the guide roller 5 through the glue outlet pipe 10. As the guide roller 5 and the glue coating roller 4 rotate in opposite directions, the glue can be evenly distributed on the surface of the glue coating roller 4. Then, the cardboard that needs to be glued is conveyed through the conveyor roller 3. At the same time, the glue coating roller 4 coats the cardboard with glue. The glued cardboard enters the heating chamber 7. The electric heating tube 12 inside the heating chamber 7 raises the temperature inside the heating chamber 11. Heating can increase the thermal motion of glue molecules, making the molecules in the glue more active and accelerating the reaction speed between them, which is convenient for subsequent bonding operations between cardboards. During this process, the odor generated by heating enters the adsorption box 9 through the connecting pipe 8. The activated carbon particles 16 inside the adsorption box 9 purify the odor and then discharge it from the vent pipe 20. The cardboard that comes out of the heating chamber 7 can be used for subsequent bonding operations between cardboards.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A gluing and heating device for a packaging paper box laminating machine, comprising a processing table (1), characterized in that: Two equipment boxes (2) are installed at the front and rear of the upper end of the processing table (1). A conveying roller (3) is rotatably connected between the two equipment boxes (2). A glue-applying roller (4) is rotatably installed between the two equipment boxes (2) above the conveying roller (3). A glue-guiding roller (5) is installed between the two equipment boxes (2) on one side of the glue-applying roller (4). A glue tank (6) is installed at the upper end of the equipment boxes (2). A heating box (7) is installed at the upper end of the processing table (1) on one side of the glue tank (6). Both ends of the heating box (7) are provided with through grooves (19). A connecting pipe (8) is installed at one end of the heating box (7). An adsorption box (9) is installed at one end of the connecting pipe (8).
2. The adhesive coating and heating device for a packaging cardboard box laminating machine according to claim 1, characterized in that: The glue tank (6) has several glue outlet pipes (10) installed at its lower end. The glue outlet pipes (10) are all located between the glue coating roller (4) and the glue guide roller (5). The glue guide roller (5) and the glue coating roller (4) rotate in opposite directions.
3. The adhesive coating and heating device for the packaging cardboard box laminating machine according to claim 1, characterized in that: The heating box (7) is provided with a heating chamber (11), and an electric heating tube (12) is installed inside the heating chamber (11).
4. The adhesive coating and heating device for the packaging cardboard box laminating machine according to claim 3, characterized in that: The inner wall of the heating box (7) is equipped with a heat insulation layer (13).
5. The adhesive coating and heating device for a packaging cardboard box laminating machine according to claim 1, characterized in that: The adsorption box (9) is provided with an installation groove (18) at the upper end. The adsorption box (9) is detachably installed with a cover plate (14) at the upper end. The cover plate (14) is installed with an installation mesh cover (15) at the lower end. Activated carbon particles (16) are installed inside the installation mesh cover (15). An air outlet pipe (20) is installed at one end of the adsorption box (9).
6. The adhesive coating and heating device for a packaging carton laminating machine according to claim 5, characterized in that: The cover plate (14) is T-shaped, and the lower end of the cover plate (14) is inserted into the mounting groove (18). A sealing ring (17) is installed on the lower surface of the cover plate (14).