A gluing device for carton production with uniform covering pressure

Abstract

The utility model discloses a kind of paper box production gluing devices with uniform covering pressure, related to paper box production technical field, including base, the top of the base is fixedly connected with portal frame, the top of the portal frame is embedded with bearing, the utility model is driven by rotary joint nozzle to realize dead corner free uniform spraying, and immediately through hydraulic telescopic cylinder controlled, with the uniform scraper of flexible scraper, glue layer is scraped flat processing, to completely solve the problem of uneven coating, local accumulation, significantly improve the adhesion quality and aesthetic degree of paper box, simultaneously, the height adjustability of device makes it can flexibly adapt to paper box of different specifications, powerful adaptability is combined with height automated integrated operation, substantially improve production efficiency, reduce glue waste, in addition to its stable structure of bearing support and rotary joint, ensure that whole system operation is reliable, durable.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box production technology, specifically to a gluing device for producing cardboard boxes with uniform pressing. Background Technology

[0002] Cardboard boxes are commonly used as wrapping materials for goods or as protective outer layers for items. The volume of cardboard boxes varies depending on the size of the goods. As an indispensable part of modern logistics, packaging cardboard boxes bear the important responsibility of containing, protecting, and presenting products aesthetically. The physical performance indicators of packaging cardboard boxes serve as the basis for their quality assessment, and the accuracy and reliability of test data require good testing environment conditions.

[0003] Patent document CN214821267U discloses a bonding device for producing uniformly coated cardboard boxes. It states that "This utility model relates to the field of cardboard box production technology and discloses a bonding device for producing uniformly coated cardboard boxes, including a fixed layer. A support frame is fixedly connected to the bottom of the fixed layer, and a fixing screw is threaded to the outer side of the support frame. A drive motor is fixedly installed on the left side of the top of the fixed layer, and a first transmission gear is fixedly connected to the outside of the drive shaft of the drive motor. A limit frame is fixedly connected to the middle of the top of the fixed layer, and a movable guide is movably connected to the inner side of the limit frame. This bonding device for producing uniformly coated cardboard boxes uses a booster pump to transport adhesive from inside the storage box to inside the baffle. The adhesive seeps out from the outlet on the outside of the baffle onto the cardboard. Then, the drive motor is started to rotate the movable guide, and while the movable guide rotates, the baffle scrapes and spreads the adhesive evenly on the cardboard, preventing adhesive accumulation from affecting the assembly of the cardboard boxes."

[0004] However, the gluing equipment for carton production in the aforementioned publicly available literature has blind spots in the spraying process and lacks an effective leveling mechanism, resulting in uneven glue layer, easy accumulation, low degree of automation integration, reliance on manual intervention, and ultimately leading to technical problems such as low production efficiency, serious glue waste, and poor equipment stability.

[0005] In view of this, it is necessary to develop a gluing device for carton production that can achieve uniform pressing, thereby improving the applicability of the gluing device during use. Utility Model Content

[0006] The purpose of this invention is to provide a gluing device for producing cartons with uniform pressing, so as to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gluing device for producing uniformly coated cardboard boxes, comprising a base, a gantry frame fixedly connected to the top of the base, a bearing fitted into the top of the gantry frame, a rotating tube fixedly connected to the inner wall of the bearing, a rotating assembly provided on the outer wall of the rotating tube, the rotating assembly for driving the rotating tube to rotate, a rotary joint fixedly connected to the top of the rotating tube, and a conveying assembly connected to one end of the rotary joint via a pipe, the conveying assembly for conveying glue; A horizontal tube is fixedly connected to the bottom of the rotating tube, and several nozzles are installed through the bottom of the horizontal tube. A solenoid valve is provided at the output end of each nozzle. Several hydraulic telescopic cylinders are fixedly connected to the outer wall of the horizontal tube, and a uniform scraper is fixedly connected to the output end of the hydraulic telescopic cylinder.

[0008] Preferably, the rotating assembly includes a drive motor fixed to one side of the top of the gantry frame, the output shaft of the drive motor is fixedly connected to a drive gear, and a driven gear is fixedly sleeved on the outer wall of the rotating tube, with the driven gear meshing with the drive gear.

[0009] Preferably, the conveying assembly includes a glue storage tank and a conveying pump fixedly installed on the other side of the top of the gantry frame, and the inlet of the conveying pump is connected to the glue storage tank through a pipe, and the outlet of the conveying pump is connected to a rotary joint through a pipe.

[0010] Preferably, the bottom of the uniform scraper is provided with a flexible scraper blade, and the bottom of the flexible scraper blade is in contact with the surface of the coated cardboard box.

[0011] Preferably, the inner wall of the glue storage tank is provided with an electric heating plate, and the outer wall of the glue storage tank is provided with a temperature controller, and the temperature controller is electrically connected to the electric heating plate.

[0012] Preferably, the top of the base has a through groove, a movable block is movably connected inside the through groove, a movable plate is fixedly connected to the top of the movable block, a number of vacuum suction cups are provided on the top of the movable plate, and the vacuum pump at the bottom of the vacuum suction cups is located inside the movable plate.

[0013] Preferably, a servo motor is provided on one side of the base, and a threaded rod is installed at the output end of the servo motor. The threaded rod is disposed inside the through groove, and the outer wall of the threaded rod is threaded through and connected to the moving block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves uniform spraying without dead angles through a spray head driven by a rotary joint, and then smooths the adhesive layer with a flexible scraper controlled by a hydraulic telescopic cylinder. This completely solves the problems of uneven adhesive application and local accumulation, significantly improving the bonding quality and aesthetics of the cartons. At the same time, the height adjustability of the device allows it to flexibly adapt to cartons of different sizes. The strong adaptability combined with highly automated integrated operation greatly improves production efficiency and reduces glue waste. In addition, its stable structure composed of bearing support and rotary joint ensures the reliable and durable operation of the entire system. Ultimately, it achieves the goal of high-value production with high quality, high efficiency, energy saving and strong adaptability in one set of equipment.

[0015] 2. This utility model uses a drive motor to engage the active and driven gears, providing a reliable power source for the rotating tube with precise transmission, smooth operation, and sufficient torque. This ensures the uniformity of spraying and scraping rotation. The independent conveying component consists of a glue storage tank and a delivery pump, enabling a continuous, stable, and controllable supply of glue and improving the degree of automation. Crucially, the electric heating plate and temperature controller integrated in the glue storage tank effectively prevent glue from solidifying. By maintaining the optimal working temperature, the fluidity and adhesive properties of the glue are guaranteed, while also allowing the equipment to adapt to more types of glue and expanding its application range.

[0016] 3. This utility model further enhances the automation level and processing precision of the overall equipment through the integrated and innovative carton conveying and positioning mechanism. The moving block set in the through groove of the base is controlled by a high-precision threaded rod driven by a servo motor, realizing the precise and stable automatic feeding and removal of cartons at the glue coating station. This effectively ensures that each carton can stop at a consistent preset position, laying a solid foundation for uniform glue coating. The vacuum suction cup set above the moving plate can firmly adsorb and fix cartons of different specifications in a non-destructive manner, completely avoiding displacement or vibration during the glue coating process, ensuring the accuracy of the glue coating trajectory, and protecting the surface of the carton from damage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the through-slot structure of this utility model.

[0018] In the diagram: 1. Base; 2. Gantry frame; 3. Bearing; 4. Rotating tube; 5. Rotary joint; 6. Horizontal tube; 7. Nozzle; 8. Solenoid valve; 9. Hydraulic telescopic cylinder; 10. Uniform scraper; 11. Drive motor; 12. Drive gear; 13. Driven gear; 14. Glue storage tank; 15. Transfer pump; 16. Flexible scraper; 17. Electric heating plate; 18. Temperature controller; 19. Through groove; 20. Moving block; 21. Moving plate; 22. Vacuum suction cup; 23. Vacuum pump; 24. Servo motor; 25. Threaded rod. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0022] Please see Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a gluing device for producing uniformly coated cartons, comprising a base 1, a gantry frame 2 fixedly connected to the top of the base 1, a bearing 3 embedded in the top of the gantry frame 2, a rotating tube 4 fixedly connected to the inner wall of the bearing 3, a rotating assembly provided on the outer wall of the rotating tube 4, the rotating assembly being used to drive the rotating tube 4 to rotate, a rotary joint 5 fixedly connected to the top of the rotating tube 4, one end of the rotary joint 5 being connected to a conveying assembly via a pipe, the conveying assembly being used to convey glue, a horizontal tube 6 fixedly connected to the bottom of the rotating tube 4, a plurality of nozzles 7 being installed through the bottom of the horizontal tube 6, a solenoid valve 8 being provided at the output end of the nozzles 7, a plurality of hydraulic telescopic cylinders 9 fixedly connected to the outer wall of the horizontal tube 6, a uniform scraper 10 fixedly connected to the output end of the hydraulic telescopic cylinders 9, a flexible scraper 16 being provided at the bottom of the uniform scraper 10, the bottom of the flexible scraper 16 being in contact with the surface of the coated cartons; Furthermore, through the rotating design of the rotating tube 4, horizontal tube 6 and multiple nozzles 7, the glue can cover the surface of the carton in a rotating spray manner, avoiding the uneven glue application, omissions or streaks that occur when using traditional fixed nozzles 7, ensuring that every part of the glued surface can obtain a uniform glue layer. At the same time, a uniform scraper 10 controlled by a hydraulic telescopic cylinder 9 is integrated. After the glue is sprayed, the uniform scraper 10 can fall immediately to scrape the accumulated glue, so that the thickness of the entire glue layer is consistent, thereby improving the bonding strength and aesthetics of the carton. The hydraulic telescopic cylinder 9 can precisely control the lifting height of the uniform scraper 10, which means that the device can easily adapt to cartons of different heights and specifications without changing molds or making complex mechanical adjustments, thus improving the flexibility and versatility of the production line. The flexible scraper 16 can effectively scrape the glue, and its softness will not scratch or damage the surface of the carton, making it suitable for corrugated cartons of various strengths. The spraying and coating processes are integrated into one station, allowing cardboard boxes to undergo high-quality gluing in just one pass. This shortens the production cycle and improves the efficiency of the assembly line. The solenoid valve 8 can precisely control the on / off state and spraying time of each nozzle 7. In conjunction with the conveying components, it enables on-demand glue supply, avoiding unnecessary waste and leakage of glue, and reducing production costs. The design of the rotary joint 5 prevents the glue conveying pipe from getting tangled with the rotating tube 4, ensuring a continuous and stable glue supply. The rotating tube 4 is fitted onto the gantry 2 via the bearing 3, ensuring that the entire rotary glue spraying system operates smoothly and stably with low noise, minimal wear, and a long service life.

[0023] Please see Figure 1 and 2In one embodiment of this utility model, the rotating assembly includes a drive motor 11 fixed on one side of the top of the gantry frame 2. The output shaft of the drive motor 11 is fixedly connected to a drive gear 12. A driven gear 13 is fixedly sleeved on the outer wall of the rotating tube 4, and the driven gear 13 meshes with the drive gear 12. The conveying assembly includes a glue storage tank 14 and a conveying pump 15 fixedly installed on the other side of the top of the gantry frame 2. The inlet of the conveying pump 15 is connected to the glue storage tank 14 through a pipe, and the outlet of the conveying pump 15 is connected to the rotary joint 5 through a pipe. An electric heating plate 17 is provided on the inner wall of the glue storage tank 14, and a temperature controller 18 is provided on the outer wall of the glue storage tank 14. The temperature controller 18 is electrically connected to the electric heating plate 17. Furthermore, the rotating tube 4 is driven by a drive motor 11 in conjunction with a drive gear 12 and a driven gear 13. This gear transmission method provides precise and stable power transmission, which can effectively ensure the uniformity and consistency of the rotation of the nozzle 7 and the scraper, avoid slippage or speed fluctuations, and thus ensure the uniform quality of the adhesive application. The gear transmission structure is relatively compact and can provide a large torque in a limited space, which is sufficient to drive the horizontal tube 6, the nozzle 7 and the scraper to rotate smoothly, resulting in high reliability. The independent glue storage tank 14 and delivery pump 15 provide a continuous and stable supply of glue to the nozzle 7, avoiding problems such as glue interruption and uneven application caused by insufficient glue supply or pressure fluctuations. The delivery pump 15 works in conjunction with the solenoid valve 8 to realize automatic start and stop of glue delivery and accurate metering, further improving the automation level of the entire device and reducing manual intervention. For adhesives that are easy to solidify or whose viscosity changes with temperature, the electric heating plate 17 can heat and keep the adhesive in the storage tank 14 warm, effectively reducing the viscosity of the adhesive and preventing it from solidifying and clogging in the tank or pipes. This ensures that the adhesive always maintains good fluidity and spraying performance. The temperature controller 18 can accurately set and maintain the heating temperature, enabling the device to adapt to the process temperature requirements of different types and formulations of adhesives, thereby maintaining the optimal working temperature of the adhesive. This helps it to better wet the surface of the carton, improve the bonding strength and curing effect.

[0024] Please see Figure 1 , Figure 2 and Figure 4 In one embodiment of this utility model, a through groove 19 is provided on the top of the base 1, and a movable block 20 is movably connected inside the through groove 19. A movable plate 21 is fixedly connected to the top of the movable block 20. Several vacuum suction cups 22 are provided on the top of the movable plate 21, and a vacuum pump 23 at the bottom of the vacuum suction cups 22 is located inside the movable plate 21. A servo motor 24 is provided on one side of the base 1. A threaded rod 25 is installed at the output end of the servo motor 24, and the threaded rod 25 is inserted through the inside of the through groove 19. The outer wall of the threaded rod 25 is threaded through the movable block 20. Furthermore, the vacuum suction cup 22 provides a strong and uniform fixing force to adsorb the cardboard box, which can effectively adsorb the cardboard box and avoid the indentation or damage to the surface of the cardboard box caused by mechanical clamping. The transmission method using servo motor 24 to drive threaded rod 25 can accurately control the forward, backward and stop positions of moving plate 21 and the carton on it. This control method has high precision and fast response, and can accurately move the carton to the preset position under the nozzle 7 and scraper, ensuring the consistency of the glue coating trajectory. It is suitable for automated production line operation. At the same time, the threaded drive has a self-locking characteristic, and the moving block 20 will not be displaced by external force when it stops, so the positioning is firm. In addition, the transmission is smooth and can provide a large thrust to ensure the stability of the load movement. By integrating the conveying mechanism into the through slot 19 of the base 1, the overall layout of the equipment becomes more compact and neat, avoiding complex external conveying mechanisms, saving space and improving the integration level of the equipment.

[0025] The working principle involves using a spray nozzle 7 driven by a rotary joint 5 to achieve uniform spraying without dead angles. The adhesive layer is then smoothed by a uniform scraper 10 with a flexible scraper blade 16, controlled by a hydraulic telescopic cylinder 9. This completely solves the problems of uneven adhesive application and localized buildup, significantly improving the bonding quality and aesthetics of the cartons. Simultaneously, the device's height adjustability allows it to flexibly adapt to cartons of different sizes. This strong adaptability, combined with highly automated integrated operations, greatly improves production efficiency and reduces adhesive waste. Furthermore, its stable structure, supported by bearings 3 and the rotary joint 5, ensures reliable and durable operation of the entire system. Ultimately, this single piece of equipment achieves high-value production goals simultaneously: high quality, high efficiency, energy saving, and strong adaptability. The drive motor 11 drives the active gear 12 and driven gear 13 to mesh, providing the rotating tube 4 with precise transmission, smooth operation, and sufficient torque, ensuring the uniformity of spraying and scraping rotation. The independent conveying component consists of an adhesive storage tank 14 and a conveying pump 15. The system ensures a continuous, stable, and controllable supply of adhesive, enhancing automation. Crucially, the integrated electric heating plate 17 and temperature controller 18 within the adhesive storage tank 14 effectively prevent adhesive solidification, maintaining optimal operating temperature to ensure adhesive flowability and bonding performance. This also allows the equipment to adapt to a wider variety of adhesives, expanding its application range. The integrated and innovative carton conveying and positioning mechanism further improves the overall automation and processing precision. The moving block 20, located within the slot 19 of the base 1, is controlled by a servo motor 24 driving a high-precision threaded rod 25, enabling precise and stable automatic feeding and removal of cartons at the gluing station. This effectively ensures that each carton stops at a consistent preset position, laying a solid foundation for uniform adhesive application. The vacuum suction cup 22 above the moving plate 21 can firmly adsorb and fix cartons of different sizes without damage, completely avoiding displacement or vibration during the gluing process, ensuring the accuracy of the gluing trajectory, and protecting the carton surface from damage.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A gluing device for the production of cartons with uniform compression, comprising a base (1), characterized in that: A gantry frame (2) is fixedly connected to the top of the base (1). A bearing (3) is fitted into the top of the gantry frame (2). A rotating tube (4) is fixedly connected to the inner wall of the bearing (3). A rotating assembly is provided on the outer wall of the rotating tube (4). The rotating assembly is used to drive the rotating tube (4) to rotate. A rotary joint (5) is fixedly connected to the top of the rotating tube (4). One end of the rotary joint (5) is connected to a conveying assembly through a pipe. The conveying assembly is used to convey glue. The bottom of the rotating tube (4) is fixedly connected to a horizontal tube (6), and several nozzles (7) are installed through the bottom of the horizontal tube (6). A solenoid valve (8) is provided at the output end of the nozzle (7). Several hydraulic telescopic cylinders (9) are fixedly connected to the outer wall of the horizontal tube (6), and a uniform scraper (10) is fixedly connected to the output end of the hydraulic telescopic cylinder (9).

2. The gluing device for producing uniformly pressed cardboard boxes according to claim 1, characterized in that: The rotating assembly includes a drive motor (11) fixed on one side of the top of the gantry (2). The output shaft of the drive motor (11) is fixedly connected to a drive gear (12). The outer wall of the rotating tube (4) is fixedly sleeved with a driven gear (13), and the driven gear (13) meshes with the drive gear (12).

3. The gluing device for producing uniformly pressed cardboard boxes according to claim 1, characterized in that: The conveying assembly includes a glue storage tank (14) and a conveying pump (15) fixedly installed on the other side of the top of the gantry (2). The inlet of the conveying pump (15) is connected to the glue storage tank (14) through a pipe, and the outlet of the conveying pump (15) is connected to the rotary joint (5) through a pipe.

4. The gluing device for producing uniformly pressed cardboard boxes according to claim 1, characterized in that: The bottom of the uniform scraper (10) is provided with a flexible scraper (16), and the bottom of the flexible scraper (16) is in contact with the surface of the coated cardboard box.

5. The gluing device for producing uniformly pressed cardboard boxes according to claim 3, characterized in that: The inner wall of the glue storage tank (14) is provided with an electric heating plate (17), and the outer wall of the glue storage tank (14) is provided with a temperature controller (18), and the temperature controller (18) is electrically connected to the electric heating plate (17).

6. The gluing device for producing uniformly pressed cardboard boxes according to claim 1, characterized in that: The base (1) has a through groove (19) on the top. A movable block (20) is movably connected inside the through groove (19). A movable plate (21) is fixedly connected to the top of the movable block (20). Several vacuum suction cups (22) are provided on the top of the movable plate (21), and the vacuum pump (23) at the bottom of the vacuum suction cup (22) is located inside the movable plate (21).

7. The gluing device for producing uniformly pressed cardboard boxes according to claim 1, characterized in that: A servo motor (24) is provided on one side of the base (1). A threaded rod (25) is installed at the output end of the servo motor (24). The threaded rod (25) is installed inside the through groove (19). The outer wall of the threaded rod (25) is threaded through and connected to the moving block (20).

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