A quick-change cardboard box laminating device

Abstract

This utility model discloses a rapid-change carton laminating device, including a base and a centering component, a pre-pressing component, a shaping component, and a driving component arranged sequentially along the material conveying direction. Each component is detachably connected to the base by bolts. The centering component uses a bidirectional lead screw to drive symmetrical pressing wheels to achieve centering positioning of the carton; the pre-pressing component uses a cylinder to drive a pre-pressing plate in cooperation with a support roller to complete the initial pressing; the shaping component uses an active roller and an adjustable-gap driven roller to achieve final pressing and shaping. This device achieves rapid changeover through modular design, and has multi-stage pressing, adaptive adjustment, and intelligent monitoring functions, effectively improving laminating accuracy and production efficiency, and is suitable for laminating production of various carton specifications.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box manufacturing equipment technology, and in particular to a cardboard box pasting device for quick changeover. Background Technology

[0002] In the packaging and printing industry, the carton laminating process is a crucial step in bonding the printed facing paper to the corrugated carton blank, and its quality directly affects the appearance, strength, and performance of the carton. Traditional carton laminating equipment typically uses a single-step pressing or simple roller pressing structure, which has the following technical defects: 1. Low efficiency in changing models: Existing equipment is mostly an integrated fixed structure. When it is necessary to change to different specifications (such as size, thickness) of carton or laminating material, a large number of fixed parts need to be disassembled and the positioning components need to be readjusted using tools, resulting in long downtime and making it difficult to meet the flexible production needs of small batches and multiple varieties. 2. Insufficient positioning and pressing accuracy: Traditional equipment only achieves carton positioning through a single-sided pressure roller or simple mechanical limit, which is prone to laminating material displacement due to conveying deviation; moreover, the pressing process is mostly a one-time pressure application, lacking graded pressing control, which can easily cause localized poor pressing or overpressure damage to the carton surface. 3. Poor adaptability: For cartons of different thicknesses (such as 3-ply and 5-ply corrugated paper), the pressing gap adjustment of traditional equipment relies on manual experience, making it difficult to ensure a uniform pressing effect. At the same time, the lack of real-time monitoring of parameters such as pressure and speed prevents dynamic adjustments based on operating conditions, resulting in a high defect rate. 4. Low level of intelligence: Traditional equipment mostly uses open-loop control, unable to perceive the pressing status in real time (such as whether the pressure is up to standard or whether the roller speed is stable), relying on manual inspection and adjustment, making it difficult to guarantee production efficiency and consistency.

[0003] Therefore, there is an urgent need for a carton laminating device that can quickly change models, achieve high-precision positioning, perform multi-level adaptive pressing, and possess intelligent control, in order to solve the aforementioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a carton pasting device for quick changeover.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a quick-change carton laminating device, comprising a base. Above the base, along the material conveying direction, are sequentially arranged a centering component for positioning the carton, a pre-pressing component for initially pressing the laminating material, and a shaping component for final shaping and pressing. The input end of the shaping component is fixedly connected to a driving component for driving its operation. The centering component, pre-pressing component, shaping component, and driving component are all detachably connected to the upper surface of the base by bolts.

[0006] As a preferred embodiment of this utility model, the centering component includes a centering fixing bracket fixedly installed on a base. Two centering guide rails are arranged parallel to each other on the upper surface of the centering fixing bracket along a direction perpendicular to the material conveying direction. A drive screw is fixedly connected between the two centering guide rails via a screw bearing seat. The drive screw is a bidirectional screw with opposite thread directions at both ends. One end of the drive screw is fixedly connected to the output shaft of a centering drive motor via a coupling. The centering drive motor is fixed to the side of the centering fixing bracket via a motor mount. Two sets of symmetrical centering slides are slidably fitted on the centering guide rails. The two sets of centering slides are respectively screwed to two opposite threaded sections of the drive screw. A vertical clamping wheel is vertically fixedly connected to the upper surface of each set of centering slides. The vertical clamping wheel is rotatably connected to the centering slide via an axle, and the wheel surfaces of the two sets of vertical clamping wheels are arranged opposite each other for clamping and positioning the left and right sides of the carton.

[0007] As a preferred embodiment of this utility model, the pre-pressing assembly includes a first fixed frame, the bottom of which is fixedly connected to the base by anchor bolts. A pre-pressing support roller is horizontally arranged inside the first fixed frame, and both ends of the pre-pressing support roller are rotatably connected to the front and rear side walls of the first fixed frame through first bearing seats. A pre-pressing plate is arranged parallel above the pre-pressing support roller, and the lower surface of the pre-pressing plate is clearance-fitted with the wheel surface of the pre-pressing support roller. The center of the upper surface of the pre-pressing plate is fixedly connected to the top of the piston rod of the pressing cylinder. The cylinder body of the pressing cylinder is fixed to the top of the first fixed frame through a cylinder seat, and is used to drive the pre-pressing plate to press the carton and the initial layer of the facing material downward.

[0008] As a preferred embodiment of this utility model, the shaping component includes a second fixed frame. The bottom of the second fixed frame is fixedly connected to the base via anchor bolts. A driven roller and a driving roller are horizontally arranged inside the second fixed frame, with the driven roller located directly below the driving roller. The two ends of the driven roller are rotatably connected to the front and rear side walls of the second fixed frame via second bearing seats. The bottom of the driven roller is screwed to the bottom wall of the second fixed frame via adjusting bolts. A pressure sensor is added at the adjusting bolts to monitor the pressing force in real time. A speed sensor is linked with an external controller to dynamically adjust the output of the downward drive motor. An anti-loosening nut is fitted on the outside of the adjusting bolts to adjust the pressing gap between the driven roller and the driving roller. The two ends of the driving roller are rotatably connected to the front and rear side walls of the second fixed frame via third bearing seats. The pressing gap formed between the wheel surface of the driving roller and the wheel surface of the driven roller is adjustable within a range of 2-5mm, used for the final pressing and shaping of the carton and the facing material.

[0009] As a preferred embodiment of this utility model, the driving assembly includes a downward driving motor and a gear set; the downward driving motor is fixed to the side of the shaping assembly via a motor mount, and its output shaft is fixedly connected to the input end of the gear set; the gear set includes a driving gear and a driven gear, the driving gear is keyed to the output shaft of the downward driving motor, and the driven gear is keyed to the rotating shaft of the driving roller, and the driving gear and the driven gear mesh and transmit power to the driving roller.

[0010] As a preferred embodiment of this utility model, a rubber buffer layer is fitted on the wheel surface of the pre-pressing support roller to prevent damage to the carton surface during pressing; a rubber contact pad is fixedly connected to the lower surface of the pre-pressing plate, and the surface of the rubber contact pad is provided with anti-slip texture to increase the friction with the bonding material; a pressure sensor is provided between the piston rod of the pressing cylinder and the pre-pressing plate, and the pressure sensor is electrically connected to an external controller through a signal line to monitor the pre-pressing pressure in real time and provide feedback control.

[0011] As a preferred embodiment of this utility model, the driven roller is fitted with a silicone elastic layer on its surface to adapt to the pressing requirements of cartons of different thicknesses and ensure uniform pressing; a rotating handwheel is fixedly connected to the end of the adjusting bolt, and the outer circumferential surface of the rotating handwheel is provided with anti-slip ridges to facilitate manual adjustment of the height of the driven roller; a speed sensor is fixedly connected to one end of the shaft of the driving roller, and the speed sensor is electrically connected to an external controller through a signal line to monitor the speed of the driving roller and provide feedback control.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Quick changeover, improved production efficiency: The device adopts a modular and detachable structure (the centering component, pre-pressing component, shaping component and drive component are all connected to the base by bolts). When changing the specifications of carton or veneer material, it is only necessary to remove the fixing bolts of the corresponding component and adjust the relevant parameters (such as driven roller height and pressing gap), without the need for overall disassembly, which greatly shortens downtime and meets the needs of flexible production. 2. The centering component uses a bidirectional screw to drive symmetrically arranged vertical clamping rollers, which simultaneously clamp the carton from both sides, avoiding positioning deviation caused by conveying bias and ensuring high positioning accuracy. The pre-pressing component adopts a graded pressing structure of "support roller + pre-pressing plate". The pre-pressing plate first performs preliminary bonding between the facing material and the carton to prevent material displacement during subsequent conveying. The shaping component achieves final shaping through the rolling of the active roller and the driven roller, and the pressing gap is adjustable (2-5mm) to adapt to cartons of different thicknesses, significantly improving the uniformity of pressing. 3. The driven roller is height-adjustable via adjusting bolts and anti-loosening nuts. Combined with a silicone elastic layer, it can adapt to the pressing requirements of cartons of different thicknesses, ensuring uniform pressure. The rubber buffer layer of the pre-pressure support roller and the rubber contact pad (with anti-slip texture) of the pre-pressure plate prevent damage to the carton surface and increase friction to prevent material slippage. The pressure sensor (monitoring pre-pressure) and speed sensor (monitoring the speed of the drive roller) are linked with an external controller to achieve real-time feedback control of the pressing process, further improving stability. 4. By integrating pressure and speed sensors, the device can communicate with external control systems (such as PLCs) to obtain real-time pressing status data (such as pressure values ​​and roller speeds), automatically adjust the output of the drive motor or the stroke of the cylinder, reduce manual intervention, and improve production efficiency and product qualification rate. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 This is a top view of the present invention; Figure 4 This is a side view of the present invention; Figure 5 This is a cross-sectional structural diagram of the present invention; In the diagram: 1. Base; 2. Centering component; 3. Pre-compression component; 4. Shaping component; 5. Drive component; 21. Centering fixed bracket; 22. Centering guide rail; 23. Drive screw; 24. Centering drive motor; 25. Coupling; 26. Centering slide; 27. Vertical clamping roller; 31. First fixed frame; 32. Pre-compression support roller; 33. First bearing seat; 34. Pre-compression plate; 35. Downward pressure cylinder; 41. Second fixed frame; 42. Driven roller; 43. Driven roller; 44. Second bearing seat; 45. Adjusting bolt; 46. Anti-loosening nut; 47. Third bearing seat; 51. Downward pressure drive motor; 52. Gear set; 321. Rubber buffer layer; 341. Rubber contact pad; 351. Pressure sensor; 421. Silicone elastic layer; 431. Speed ​​sensor; 451. Rotary handwheel; 521. Driven gear; 522. Driven gear. Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] In the attached diagram, all identical reference numerals refer to the same components.

[0016] Example 1: Basic Structure and Workflow like Figure 1-5 As shown, this embodiment provides a quick-change carton laminating device, including a base 1. A centering component 2, a pre-pressing component 3, and a shaping component 4 are sequentially installed on the base 1 along the material conveying direction. A driving component 5 is fixedly connected to the input end of the shaping component 4. Each component is detachably connected to the upper surface of the base 1 by bolts.

[0017] Please see Figure 3 The centering component 2 includes a centering fixed bracket 21, which is fixedly installed on the base 1. Two centering guide rails 22 are arranged parallel to each other on the upper surface of the centering fixed bracket 21 along the direction perpendicular to the material conveying direction. A drive screw 23 is fixed between the two centering guide rails 22 through a screw bearing seat. The drive screw 23 is a bidirectional screw with opposite threads at both ends. One end of the drive screw 23 is connected to the output shaft of the centering drive motor 24 through a coupling 25. The centering drive motor 24 is fixed to the side of the centering fixed bracket 21 through a motor seat. Two sets of symmetrical centering slides 26 are slidably fitted on the centering guide rails 22. Each set of centering slides 26 is screwed to two opposite threaded sections of the drive screw 23. Vertical clamping wheels 27 are vertically fixed on the upper surface of the centering slides 26. The vertical clamping wheels 27 are rotatably connected to the centering slides 26 through axles. The wheel surfaces of the two sets of vertical clamping wheels 27 are arranged opposite each other and are used to clamp the left and right sides of the carton.

[0018] When the material enters the device via the conveyor belt, the central drive motor 24 drives the drive screw 23 to rotate, and the two sets of central slides 26 move towards each other along the central guide rail 22, driving the vertical clamping wheel 27 to clamp the carton synchronously, thus achieving precise central positioning.

[0019] Please see Figure 2 , Figure 4 , Figure 5 The pre-pressing assembly 3 includes a first fixed frame 31, the bottom of which is fixed to the base 1 by anchor bolts; a pre-pressing support roller 32 is horizontally arranged inside the first fixed frame 31, and the two ends of the pre-pressing support roller 32 are rotatably connected to the front and rear side walls of the first fixed frame 31 by first bearing seats 33; a pre-pressing plate 34 is arranged parallel above the pre-pressing support roller 32, and its lower surface is in clearance fit with the wheel surface of the pre-pressing support roller 32; the center of the upper surface of the pre-pressing plate 34 is fixed to the top of the piston rod of the pressing cylinder 35, and the cylinder body of the pressing cylinder 35 is fixed to the top of the first fixed frame 31 by a cylinder seat, which is used to drive the pre-pressing plate 34 to press the carton and the initial layer of the facing material downward.

[0020] After positioning is completed, the pressure cylinder 35 pushes the pre-pressure plate 34 down to cooperate with the pre-pressure support roller 32 to initially press the carton and the facing material together to prevent the material from shifting during subsequent conveying.

[0021] Please see Figure 2 , Figure 5 The shaping component 4 includes a second fixed frame 41, the bottom of which is fixed to the base 1 by anchor bolts; the second fixed frame 41 has a driven roller 42 and a driving roller 43 horizontally arranged inside, with the driven roller 42 located directly below the driving roller 43; the two ends of the driven roller 42 are rotatably connected to the front and rear side walls of the second fixed frame 41 by second bearing seats 44, and its bottom is screwed to the bottom wall of the second fixed frame 41 by adjusting bolts 45, and a pressure sensor is added at the adjusting bolt for real-time monitoring of the pressing force, and an anti-loosening nut 46 is sleeved on the outside of the adjusting bolt 45; the two ends of the driving roller 43 are rotatably connected to the front and rear side walls of the second fixed frame 41 by third bearing seats 47, and a 2-5mm adjustable pressing gap is formed between its wheel surface and the wheel surface of the driven roller 42 for final rolling and shaping; the speed sensor 431 is linked with an external controller to dynamically adjust the output of the pressing drive motor 51.

[0022] When the pre-pressed carton is conveyed to the shaping component 4, the drive component 5 drives the active roller 43 to rotate, which cooperates with the driven roller 42 to crush the carton and the facing material. The height of the driven roller 42 can be adjusted by adjusting the bolt 45 to adapt to the pressing requirements of cartons of different thicknesses.

[0023] The drive assembly 5 includes a pressure drive motor 51 and a gear set 52. The pressure drive motor 51 is fixed to the side of the shaping assembly 4 via a motor mount, and its output shaft is fixed to the input end of the gear set 52. The gear set 52 includes a driving gear 521 and a driven gear 522. The driving gear 521 is keyed to the output shaft of the pressure drive motor 51, and the driven gear 522 is keyed to the shaft of the driving roller 43. The two mesh and transmit power from the pressure drive motor 51 to the driving roller 43.

[0024] Example 2: Type Change Adjustment and Adaptive Regulation Based on Example 1, this embodiment focuses on explaining the device's quick-change function and adaptive adjustment design.

[0025] When changing to a different thickness of cardboard box (e.g., switching from 3-layer corrugated cardboard to 5-layer corrugated cardboard), the operator first loosens the anti-loosening nut 46 and rotates the adjusting bolt 45 to adjust the height of the driven roller 42, so that the pressing gap between the driven roller 42 and the driving roller 43 matches the thickness of the new cardboard box (e.g., adjusting from 3mm to 5mm); then, the anti-loosening nut 46 is tightened to fix the position of the driven roller 42. If it is necessary to further compensate for the elasticity differences of different cardboard materials (e.g., thin cardboard is easily deformed), the adjusting bolt 45 can be finely adjusted by rotating the handwheel 451, which, in conjunction with the deformation characteristics of the silicone elastic layer 421, ensures uniform pressing.

[0026] Furthermore, the rubber buffer layer 321 on the surface of the pre-press support roller 32 can adaptively adjust the contact pressure according to the surface hardness of the carton to avoid damaging the carton; the rubber contact pad 341 on the lower surface of the pre-press plate 34 increases the friction with the laminating material through anti-slip texture to prevent the material from sliding during the pre-pressing process. The pressure sensor 351 monitors the piston rod pressure of the pressing cylinder 35 in real time. If the pressure deviates from the set value (such as due to uneven thickness of the laminating material), it is fed back to the external controller to adjust the cylinder stroke to ensure consistent pre-pressing pressure.

[0027] Example 3: Multi-stage pressing and intelligent control This embodiment focuses on illustrating the advantages of the device's multi-stage pressing process and intelligent control.

[0028] After being clamped and positioned by the centering component 2, the material first enters the pre-pressing component 3: the pre-pressing support roller 32 lifts the carton, and the pressing cylinder 35 drives the pre-pressing plate 34 to press down at a set pressure (e.g., 0.3MPa), so that the facing material is initially bonded to the carton (peel strength ≥ 0.3N / cm), avoiding material misalignment during subsequent conveying. Subsequently, the carton enters the shaping component 4: the driving roller 43 is driven to rotate by the pressing drive motor 51 through the gear set 52 (the rotation speed is monitored by the speed sensor 431 and fed back to the controller to adjust the motor output), and cooperates with the driven roller 42 to press with a pressure of 5-10N / cm for 2-3 seconds. Through the flexible deformation of the silicone elastic layer 421, the uniformity of pressing in areas of different thicknesses is ensured (peel strength is increased to 1.2-1.5N / cm).

[0029] Throughout the process, pressure sensor 351 and speed sensor 431 collect data in real time. If the pre-pressure is insufficient or the speed of the drive roller is abnormal (such as due to sudden changes in motor load), the controller immediately triggers an alarm and stops the machine to prevent the production of batch defective products. Through modular design, the device can be quickly adapted to cartons of different sizes (such as lengths of 300-800mm) or thicknesses (3-8mm) by replacing different specifications of the centering slide 26 or adjusting bolt 45. The changeover time is shortened from the traditional 1-2 hours to 10-15 minutes, significantly improving production efficiency.

[0030] 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 quick changeover carton lamination device, characterized by, The base (1) includes a centering component (2) for positioning the carton, a pre-pressing component (3) for initially pressing the facing material, and a shaping component (4) for final shaping and pressing, arranged sequentially on the upper part of the base (1) along the material conveying direction; a driving component (5) for driving its action is fixedly connected to the input end of the shaping component (4); the centering component (2), the pre-pressing component (3), the shaping component (4) and the driving component (5) are all detachably connected to the upper surface of the base (1) by bolts.

2. A quick changeover carton lamination apparatus as claimed in claim 1, wherein, The centering component (2) includes a centering fixing bracket (21) fixedly installed on the base (1). Two centering guide rails (22) are arranged parallel to each other on the upper surface of the centering fixing bracket (21) along a direction perpendicular to the material conveying direction. A drive screw (23) is fixedly connected between the two centering guide rails (22) via a screw bearing seat. The drive screw (23) is a bidirectional screw with opposite thread directions at both ends. One end of the drive screw (23) is fixedly connected to the output shaft of a centering drive motor (24) via a coupling (25). (24) The motor is fixed to the side of the central fixed bracket (21) by the motor base; two sets of symmetrical central slides (26) are slidably fitted on the central guide rail (22), and the two sets of central slides (26) are respectively screwed to the two reverse threaded sections of the drive screw (23); a vertical pressing wheel (27) is vertically fixedly connected to the upper surface of each set of central slides (26), and the vertical pressing wheel (27) is rotatably connected to the central slide (26) through the wheel axle, and the wheel surfaces of the two sets of vertical pressing wheels (27) are arranged opposite to each other for clamping and positioning the left and right sides of the carton.

3. A quick changeover carton lamination apparatus as claimed in claim 1, wherein, The pre-pressing assembly (3) includes a first fixed frame (31), the bottom of which is fixedly connected to the base (1) by anchor bolts. A pre-pressing support roller (32) is horizontally arranged inside the first fixed frame (31). The two ends of the pre-pressing support roller (32) are rotatably connected to the front and rear side walls of the first fixed frame (31) by a first bearing seat (33). A pre-pressing plate (34) is arranged parallel above the pre-pressing support roller (32). The lower surface of the pre-pressing plate (34) is in clearance fit with the wheel surface of the pre-pressing support roller (32). The center of the upper surface of the pre-pressing plate (34) is fixedly connected to the top of the piston rod of the pressing cylinder (35). The cylinder body of the pressing cylinder (35) is fixed to the top of the first fixed frame (31) by a cylinder seat, which is used to drive the pre-pressing plate (34) to press the carton and the initial layer of the facing material downward.

4. The quick-change paper box lamination device according to claim 1, wherein, The shaping component (4) includes a second fixing frame (41). The bottom of the second fixing frame (41) is fixedly connected to the base (1) by anchor bolts. A driven roller (42) and a driving roller (43) are horizontally arranged inside the second fixing frame (41), wherein the driven roller (42) is located directly below the driving roller (43). The two ends of the driven roller (42) are rotatably connected to the front and rear side walls of the second fixing frame (41) by second bearing seats (44). The bottom of the driven roller (42) is connected to the bottom wall of the second fixing frame (41) by adjusting bolts (45). A pressure sensor is added at the adjusting bolt (45) to monitor the pressing force in real time; the adjusting bolt (45) is fitted with an anti-loosening nut (46) to adjust the pressing gap between the driven roller (42) and the driving roller (43); the two ends of the driving roller (43) are rotatably connected to the front and rear side walls of the second fixed frame (41) through the third bearing seat (47), and the pressing gap formed between the wheel surface of the driving roller (43) and the wheel surface of the driven roller (42) is adjustable in the range of 2-5mm, which is used to finally roll and shape the carton and the facing material.

5. The quick-change paper box lamination device according to claim 1, wherein, The drive assembly (5) includes a pressure drive motor (51) and a gear set (52); the pressure drive motor (51) is fixed to the side of the shaping assembly (4) by a motor mount, and its output shaft is fixedly connected to the input end of the gear set (52); the gear set (52) includes a drive gear (521) and a driven gear (522), the drive gear (521) is keyed to the output shaft of the pressure drive motor (51), the driven gear (522) is keyed to the rotating shaft of the drive roller (43), and the drive gear (521) and the driven gear (522) mesh and drive each other to transmit the power of the pressure drive motor (51) to the drive roller (43).

6. A quick changeover carton lamination apparatus as claimed in claim 3, wherein, The pre-press support roller (32) is fitted with a rubber buffer layer (321) to prevent damage to the carton surface during pressing; a rubber contact pad (341) is fixedly connected to the lower surface of the pre-press plate (34), and the surface of the rubber contact pad (341) is provided with anti-slip texture to increase the friction with the facing material; a pressure sensor (351) is provided between the piston rod of the pressing cylinder (35) and the pre-press plate (34), and the pressure sensor (351) is electrically connected to an external controller through a signal line to monitor the pre-press pressure in real time and provide feedback control.

7. A quick changeover carton lamination apparatus as claimed in claim 4, wherein, The driven roller (42) is fitted with a silicone elastic layer (421) to adapt to the pressing requirements of cartons of different thicknesses and ensure uniform pressing; the end of the adjusting bolt (45) is fixedly connected to a rotating handwheel (451), and the outer circumference of the rotating handwheel (451) is provided with anti-slip ridges to facilitate manual adjustment of the height of the driven roller (42); one end of the shaft of the driving roller (43) is fixedly connected to a speed sensor (431), and the speed sensor (431) is electrically connected to an external controller through a signal line to monitor the speed of the driving roller (43) and provide feedback control.

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