An adjustable cardboard box production bundling device

Abstract

This utility model discloses an adjustable cardboard box production strapping device, including a ring strapping machine, a feeding conveyor mechanism, a discharging conveyor mechanism, and a centering lifting and blocking component. The feeding conveyor mechanism is equipped with a centering lifting component (including a reverse screw drive and a displacement sensor) and a blocking component (including a photoelectric sensor) along the conveying direction, enabling adaptive centering, lifting, and precise blocking in the width direction of the cardboard box. The ring strapping machine is equipped with an adjustable ring track to adapt to cardboard boxes of different sizes. This solves the problems of poor size adaptability and low positioning accuracy of traditional devices, improving strapping efficiency and quality, and is suitable for automated strapping production of multi-specification cardboard boxes.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box production equipment, and in particular to an adjustable cardboard box production bundling device. Background Technology

[0002] In the cardboard packaging industry, the strapping process is a crucial post-production step, used to secure stacked or arranged cartons with strapping for transport and storage. With the diversification of packaging demands and the increasing variety of carton sizes, traditional strapping devices have revealed the following shortcomings: 1. Poor size adaptability: Traditional strapping devices often use fixed positioning and clamping mechanisms, only suitable for cartons of specific widths. When carton dimensions change, manual readjustment of fixtures or replacement of parts is required, leading to long changeover times, low production efficiency, and difficulty in meeting the needs of small-batch, multi-specification production. 2. Insufficient positioning accuracy: When cartons are transported to the strapping station, they are prone to deviating from their intended position due to speed fluctuations or inertia. Traditional devices lack effective blocking, centering, and clamping coordination control, causing the strapping to become entangled and shifted, affecting strapping strength and appearance quality. 3. Low level of automation: Traditional devices rely heavily on manual operation or simple mechanical linkages for actions such as transmission, lifting, and clamping. This makes them difficult to match with high-speed strapping equipment (such as ring strapping machines), leading to production line disruptions and limited capacity. 4. Complex structure and high maintenance costs: Some devices use multiple independent drive mechanisms to improve adaptability, which not only increases equipment costs but also makes troubleshooting and maintenance time-consuming due to the difficulty in coordinating components.

[0003] Therefore, there is an urgent need for a strapping device that can adapt to cartons of different widths, has precise positioning, and a high degree of automation to solve the above-mentioned 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 an adjustable cardboard box production bundling device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses an adjustable cardboard box production strapping device, comprising a ring strapping machine, a feeding conveyor mechanism, and a discharging conveyor mechanism. The feeding conveyor mechanism is located on one side of the feeding end of the ring strapping machine, and its output end is connected to the strapping station of the ring strapping machine. The discharging conveyor mechanism is located on one side of the discharging end of the ring strapping machine, and its input end is connected to the strapping station of the ring strapping machine. The feeding conveyor mechanism is provided with a centering lifting component and a blocking component in sequence along the conveying direction. The centering lifting component is provided with a left clamping component and a right clamping component arranged opposite to each other. The centering lifting component is used to center and lift the cardboard box in the width direction to the strapping height of the ring strapping machine, and the blocking component is used to temporarily block the cardboard box at the strapping station.

[0007] As a preferred embodiment of this utility model, the centering lifting assembly includes a base, a drive module, a screw transmission module, a guide module, and a lifting module. The base is a rectangular frame structure, fixed to the bottom frame of the feeding and conveying mechanism. The drive module includes a servo motor, a synchronous gear set, and a reducer. The output end of the servo motor is connected to the input end of the reducer through the synchronous gear set, and the output end of the reducer drives the screw transmission module. The screw transmission module includes a horizontally arranged ball screw with opposite thread directions at both ends, fixed to both ends of the base by a screw support. The input end of the ball screw is keyed to the output end of the reducer. The guide module includes a centering guide shaft. The lifting module includes two lifting slides, two lifting sliders, a lifting fixed seat, a lifting cylinder, and a lifting plate. The lifting slides have threaded holes matching the ball screw, and are threadedly connected to the ball screw through these holes. The two lifting slides are respectively fitted onto the central guide shaft and slide in cooperation with it. The lifting sliders are fixedly connected to the lifting slides and slide in cooperation with the central guide shaft. The bottom of the lifting fixed seat is fixedly connected to the top of the lifting slide. The cylinder body of the lifting cylinder is fixed to the lifting fixed seat, and the piston rod of the lifting cylinder is fixedly connected to the bottom of the lifting plate.

[0008] In a preferred embodiment of this invention, both the left clamping assembly and the right clamping assembly are fixed to the lifting plate. The left clamping assembly includes an L-shaped base, a horizontal clamping cylinder, a left pressure plate, and two left guide shafts. The L-shaped base is fixed to the left side of the lifting plate, the cylinder body of the horizontal clamping cylinder is fixed to the vertical side of the L-shaped base, the piston rod of the horizontal clamping cylinder is fixedly connected to the left side of the left pressure plate, and the two left guide shafts are arranged parallel to each other on both sides of the horizontal clamping cylinder, one end of which is connected to the left side of the lifting plate. The L-shaped base is slidably engaged, and the other end is fixedly connected to the left side of the left pressure plate; the right clamping assembly includes a vertical fixing seat, a buffer, a right pressure plate, and two right guide shafts; the vertical fixing seat is fixed to the right side of the lifting plate, the buffer is fixed horizontally to the vertical side of the vertical fixing seat, the piston rod of the buffer abuts against the right side of the right pressure plate, and the two right guide shafts are arranged parallel to each other on both sides of the buffer, one end of which is slidably engaged with the vertical fixing seat, and the other end is fixedly connected to the right side of the right pressure plate.

[0009] As a preferred technical solution of this utility model, the distance between the lifting and fixing seats of the screw drive module can be adjusted by the drive module to adapt to cartons of different widths; the lifting slide is also equipped with a displacement sensor to detect the movement position of the lifting slide in real time and feed it back to the control system.

[0010] As a preferred embodiment of this utility model, the blocking assembly includes a blocking bracket, a blocking cylinder, a buffer guide mechanism, a blocking baffle, and a positioning detection sensor. The blocking bracket is a U-shaped plate structure, fixed to the bottom frame of the feeding and conveying mechanism by bolts, and located downstream of the central lifting assembly along the feeding and conveying direction. The blocking cylinder is vertically arranged in the U-shaped groove of the blocking bracket, with its cylinder body fixedly connected to the blocking bracket and its piston rod extending vertically upward. The buffer guide mechanism includes two guide slide rods and two linear bearing seats. The two guide slide rods are arranged parallel to the piston rod of the blocking cylinder, with their lower ends fixedly connected to the upper surface of the blocking bracket via linear bearing seats, and their upper ends fixedly connected to the bottom of the blocking baffle. The top of the piston rod of the blocking cylinder is fixedly connected to the center of the bottom of the blocking baffle. The positioning detection sensor is a photoelectric sensor, fixed to the top of the blocking bracket, used to detect whether the carton has reached the strapping station and transmit the signal to the control system to control the blocking cylinder to move.

[0011] As a preferred embodiment of this utility model, both the feeding and unloading conveying mechanisms are roller conveyors, including a conveyor frame, a drive roller, a driven roller, a conveying chain, and a conveying drive motor. The drive roller and the driven roller are arranged parallel to each other at both ends of the conveyor frame, and the conveying chain is tensioned and wound between the drive roller and the driven roller. The conveying drive motor is connected to the input shaft of the drive roller through a chain transmission mechanism to drive the conveying chain. The conveying speed of the feeding conveying mechanism is the same as that of the unloading conveying mechanism, and both are matched with the strapping rhythm of the ring strapping machine.

[0012] As a preferred embodiment of this utility model, the ring strapping machine includes a strapping table, a ring track, a strapping head, and a heat sealing device. The ring track is a closed ring structure, fixed on the strapping table, and consists of multiple extendable track segments. The radius of the ring track can be adjusted by adjusting the length of the track segments. The strapping head is slidably mounted on the ring track and is used to carry the strapping tape around the carton. The heat sealing device is fixed to one side of the ring track and is used to heat seal and fix the strapping tape after it has been wrapped around the carton.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The centering lifting assembly controls the reverse screw transmission module via the drive module, allowing for flexible adjustment of the distance between the two lifting slides. Combined with real-time position feedback from displacement sensors, it quickly adapts to cartons of different widths. The adjustable circular track of the ring strapping machine consists of extendable track sections, allowing for adjustment of the track length to match the carton strapping radius. These designs significantly shorten changeover time, support continuous production of small batches of multi-specification cartons, and substantially improve equipment utilization.

[0015] 2. The blocking component of the feeding and conveying mechanism accurately identifies the position of the carton through a positioning detection sensor, triggering the blocking cylinder to act. Combined with the buffer guide mechanism, this ensures the carton is stably stopped at the strapping station. The centering lifting component, through the coordinated action of the left and right clamping components, clamps the carton in the width direction and centers it, preventing it from shifting during strapping. This dual positioning mechanism effectively improves the accuracy of strapping wrapping and reduces the scrap rate.

[0016] 3. Both the feeding and unloading conveying mechanisms adopt roller conveyors, whose conveying speed is matched with the strapping rhythm of the ring strapping machine. With the automatic lifting of the center lifting component, clamping and automatic release of the blocking component, the entire process of carton conveying, positioning, strapping and unloading is automated, reducing manual intervention and lowering the labor intensity of operators. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a side view of the present invention;

[0021] Figure 4 This is a schematic diagram of the central lifting component in this utility model;

[0022] Figure 5 This is a schematic diagram of the blocking component in this utility model;

[0023] In the diagram: 1. Circular strapping machine; 2. Feeding and conveying mechanism; 3. Unloading and conveying mechanism; 4. Centering lifting assembly; 5. Blocking assembly; 6. Left clamping assembly; 7. Right clamping assembly; 11. Strapping table; 12. Circular track; 13. Strapping head; 14. Heat sealing device; 21. Conveyor frame; 22. Drive roller; 23. Driven roller; 24. Conveyor chain; 25. Conveyor drive motor; 41. Base; 42. Drive module; 43. Screw drive module; 44. Guide module; 45. Lifting module; 51. Blocking bracket; 52. Blocking cylinder; 53. Buffer guide mechanism; 54. Blocking baffle; 55. Positioning point. Detection sensor; 61. L-shaped base; 62. Horizontal clamping cylinder; 63. Left guide shaft; 64. Left pressure plate; 71. Vertical fixed seat; 72. Buffer; 73. Right guide shaft; 74. Right pressure plate; 421. Servo motor; 422. Synchronous gear set; 423. Reducer; 431. Ball screw; 432. Screw support seat; 441. Centered guide shaft; 442. Shaft support seat; 451. Lifting slide; 452. Lifting slider; 453. Lifting fixed seat; 454. Lifting cylinder; 455. Lifting plate; 456. Displacement sensor; 531. Guide slide rod; 532. Linear bearing seat. Detailed Implementation

[0024] 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.

[0025] In the attached diagram, all identical reference numerals refer to the same components.

[0026] Example 1: Connection relationship between the overall structure and core components

[0027] like Figure 1-5 As shown, this embodiment provides an adjustable cardboard box production strapping device, including a ring strapping machine 1, a feeding conveyor mechanism 2, a discharging conveyor mechanism 3, a centering lifting component 4, a blocking component 5, a left clamping component 6, and a right clamping component 7. The components work together mechanically and electrically to achieve automatic feeding, positioning, clamping, strapping, and discharging of the cardboard boxes.

[0028] The ring strapping machine 1 is the core strapping unit, fixed between the feeding conveyor 2 and the unloading conveyor 3. Its main body includes a strapping table 11, a ring track 12, a strapping head 13, and a heat sealing device 14: the strapping table 11 is a horizontal support platform; the ring track 12 is a closed ring structure, which is fixed to the strapping table 11 by splicing multiple retractable track sections, and the length of the track sections is adjustable to adapt to the strapping radius of cartons of different widths; the strapping head 13 can slide along the ring track 12, carrying the strapping tape around the carton; the heat sealing device 14 is fixed to one side of the ring track 12 and is used to heat seal and fix the ends of the strapping tape after it has been wrapped.

[0029] Both the feeding conveyor 2 and the unloading conveyor 3 are roller conveyors with identical structures and transmission speeds matching the strapping rhythm of the ring strapping machine 1. Taking the feeding conveyor 2 as an example, it includes a conveyor frame 21, a drive roller 22, a driven roller 23, a conveyor chain 24, and a conveyor drive motor 25: the conveyor frame 21 is a metal frame structure, with its bottom fixed to the ground or frame by bolts; the drive roller 22 and the driven roller 23 are arranged parallel to each other at both ends of the conveyor frame 21 and are supported by bearing seats respectively; the conveyor chain 24 is tensioned and wound between the drive roller 22 and the driven roller 23, with forks spaced apart on its surface to push the cartons; the conveyor drive motor 25 is installed at one end of the conveyor frame 21 and is connected to the input shaft of the drive roller 22 through a chain transmission mechanism, driving the conveyor chain 24 to move and realize the feeding and conveying of the cartons.

[0030] Please see Figure 4The centrally located lifting assembly 4 is installed on the bottom frame of the conveyor frame 21 of the feeding and conveying mechanism 2, and is located upstream of the blocking assembly 5 along the conveying direction. It includes a base 41, a drive module 42, a screw drive module 43, a guide module 44, and a lifting module 45. The base 41 is a rectangular frame structure, fixed to the bottom of the conveyor frame 21 by bolts. The drive module 42 includes a servo motor 421, a synchronous gear set 422, and a reducer 423. The output end of the servo motor 421 is connected to the input end of the reducer 423 through the synchronous gear set 422. The output end of the reducer 423 is keyed to the ball screw 431 of the screw drive module 43. In the screw drive module 43, the ball screw 431 is horizontally arranged inside the base 41, with both ends fixed by screw support seats 432, and the threads at both ends rotate in opposite directions. The input end is keyed to the output end of the reducer 423. The guide module 44 includes a centrally located guide shaft 441, which is arranged parallel to the ball screw 431, and its two ends are connected by shafts. Support base 442 is fixed on base 41; lifting module 45 includes two lifting slides 451, two lifting sliders 452, lifting fixed base 453, lifting cylinder 454 and lifting plate 455: the lifting slide 451 has a threaded hole matching the ball screw 431, and is threadedly connected to the ball screw 431 through the threaded hole, and is also sleeved on the central guide shaft 441 and slides with it; the lifting slider 452 is fixedly connected to the lifting slide 451 and slides with the central guide shaft 441; the bottom of the lifting fixed base 453 is fixedly connected to the top of the two lifting slides 451 respectively, forming a rectangular support frame; the cylinder body of the lifting cylinder 454 is fixed on the lifting fixed base 453, and the piston rod extends vertically downward and is fixedly connected to the bottom of the lifting plate 455, for driving the lifting plate 455 to rise and fall.

[0031] Please see Figure 4The left clamping assembly 6 and the right clamping assembly 7 are symmetrically installed on the left and right sides of the lifting plate 455, respectively clamping the left and right sides of the carton. The left clamping assembly 6 includes an L-shaped base 61, a horizontal pressing cylinder 62, a left pressure plate 64, and two left guide shafts 63: the L-shaped base 61 is fixed to the left side surface of the lifting plate 455 by bolts, and its vertical side is perpendicular to the lifting plate 455; the cylinder body of the horizontal pressing cylinder 62 is fixed to the vertical side of the L-shaped base 61, and the piston rod extends horizontally to the right and is fixedly connected to the left side surface of the left pressure plate 64; the two left guide shafts 63 are arranged parallel to each other on both sides of the horizontal pressing cylinder 62, one end of which slides with the vertical side of the L-shaped base 61 through a linear bearing, and the other end is fixedly connected to the left side surface of the left pressure plate 64, used to guide the horizontal movement of the left pressure plate 64. The right clamping assembly 7 includes a vertical fixing seat 71, a buffer 72, a right pressure plate 74, and two right guide shafts 73. The vertical fixing seat 71 is fixed to the right side surface of the lifting plate 455 by bolts, and its vertical side is perpendicular to the lifting plate 455. The buffer 72 is fixed to the vertical side of the vertical fixing seat 71 in the horizontal direction, and its piston rod extends horizontally to the left and abuts against the right side surface of the right pressure plate 74. The two right guide shafts 73 are arranged parallel to each other on both sides of the buffer 72. One end is slidably engaged with the vertical side of the vertical fixing seat 71 through a linear bearing, and the other end is fixedly connected to the right side surface of the right pressure plate 74 to guide the horizontal movement of the right pressure plate 74.

[0032] Please see Figure 5 The blocking component 5 is installed on the bottom frame of the conveyor frame 21 of the feeding and conveying mechanism 2, and is located downstream of the central lifting component 4 along the conveying direction, and is used to temporarily block the carton at the strapping station. It includes a blocking bracket 51, a blocking cylinder 52, a buffer guide mechanism 53, a blocking baffle 54, and a position detection sensor 55. The blocking bracket 51 is a U-shaped plate structure, which is fixed to the bottom frame of the conveyor frame 21 by bolts, with the U-shaped opening facing upward. The blocking cylinder 52 is vertically set in the U-shaped groove of the blocking bracket 51, and its cylinder body is fixedly connected to the upper surface of the blocking bracket 51, with the piston rod extending vertically upward. The buffer guide mechanism 53 includes two guide slide rods 531 and two linear bearing seats 532. The guide slide rods 531 are set parallel to the piston rod of the blocking cylinder 52, with the lower end fixedly connected to the upper surface of the blocking bracket 51 through the linear bearing seats 532, and the upper end fixedly connected to the bottom of the blocking baffle 54. The top of the piston rod of the blocking cylinder 52 is fixedly connected to the center of the bottom of the blocking baffle 54, which together drive the blocking baffle 54 to rise and fall. The position detection sensor 55 is a photoelectric sensor, which is fixed to the top of the blocking bracket 51 by a bracket. It is used to detect whether the carton has reached the strapping station and transmits the signal to the control system to control the blocking cylinder 52 to move.

[0033] Example 2: Collaborative Workflow Validation

[0034] This embodiment uses a cardboard box with a width of 600mm as an example to verify the working process of the device and the collaborative function of its components:

[0035] 1. Feeding and conveying: The carton is conveyed from the upstream equipment to the conveyor chain 24 of the feeding and conveying mechanism 2. The conveyor drive motor 25 drives the conveyor chain 24 to move and convey the carton towards the strapping station.

[0036] 2. Blocking and positioning: When the carton approaches the strapping station, the positioning sensor 55 detects the edge of the carton and transmits the signal to the control system. The control system triggers the blocking cylinder 52 to move, and the piston rod pushes the blocking baffle 54 to move upward. The buffer guide mechanism 53 (guide slide rod 531 limits horizontal offset) ensures that the blocking baffle 54 rises vertically and finally contacts the bottom of the carton, blocking the carton at the strapping station.

[0037] 3. Centering and Lifting: The control system sends a command to the drive module 42, the servo motor 421 starts, and the synchronous gear set 422 and reducer 423 reduce the speed and increase the torque, driving the ball screw 431 to rotate; since the threads at both ends of the ball screw 431 turn in opposite directions, the two lifting slides 451 move towards each other along the screw until the distance matches the width of the carton (600mm) (the position is fed back in real time by the displacement sensor on the lifting slide 451); then, the lifting cylinder 454 starts, the piston rod pushes the lifting plate 455 to move upward, lifting the carton from the transmission chain 24 until the lifting height reaches the strapping height of the ring strapping machine 1 (about 150mm).

[0038] 4. Clamping and Fixing: After the lifting plate 455 rises to its position, the control system triggers the horizontal pressing cylinder 62 of the left clamping assembly 6 to move. The piston rod pushes the left pressure plate 64 to move to the right, guided by the left guide shaft 63. The right side surface of the left pressure plate 64 contacts the left side surface of the carton and applies pressure. At the same time, the buffer 72 of the right clamping assembly 7 is compressed under the reaction force of the right side surface of the carton. The right pressure plate 74 moves to the left, contacts the right side surface of the carton and applies buffer pressure. Finally, the left and right pressure plates work together to clamp and center the carton in the width direction to avoid displacement during the strapping process. The buffer 72 is compressed under the reaction force of the right side surface of the carton to provide buffer pressure. The control system adjusts to ensure that it works in coordination with the active pressure of the left pressure plate 64 to achieve balanced clamping.

[0039] 5. Bundling operation: The bundling head 13 of the circular bundling machine 1 slides along the adjustable circular track 12 (the length of the track section has been pre-adjusted to match the bundling radius of a 600mm wide carton), carrying the bundling strap around the carton once; after the wrapping is completed, the heat sealing device 14 is activated to heat seal the two ends of the bundling strap to complete the bundling.

[0040] 6. Unloading and output: After the bundling is completed, the control system sequentially controls the lifting cylinder 454 to retract (the lifting plate 455 descends) and the blocking cylinder 52 to retract (the blocking baffle 54 descends), and the carton falls onto the conveyor chain 24 of the unloading conveyor mechanism 3; the conveyor drive motor 25 drives the conveyor chain 24 to move, and transports the bundled carton to the downstream storage or packaging stage.

[0041] Through the above process, the device achieved adaptive positioning, clamping, and efficient bundling of cartons of different widths, verifying the reliability of the connection between the components and the stability of the function.

[0042] 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. An adjustable bundling device for carton production, characterized in that, The device includes a ring strapping machine (1), a feeding conveyor (2), and a discharging conveyor (3). The feeding conveyor (2) is located on the feeding end side of the ring strapping machine (1), and its output end is connected to the strapping station of the ring strapping machine (1). The discharging conveyor (3) is located on the discharging end side of the ring strapping machine (1), and its input end is connected to the strapping station of the ring strapping machine (1). The feeding conveyor (2) is provided with a centering lifting component (4) and a blocking component (5) in sequence along the conveying direction. The centering lifting component (4) is provided with a left clamping component (6) and a right clamping component (7) arranged opposite to each other. The centering lifting component (4) is used to center and lift the carton in the width direction to the strapping height of the ring strapping machine (1), and the blocking component (5) is used to temporarily block the carton at the strapping station.

2. An adjustable bundling device for carton production according to claim 1, characterized in that, The central lifting assembly (4) includes a base (41), a drive module (42), a lead screw transmission module (43), a guide module (44), and a lifting module (45); the base (41) is a rectangular frame structure, fixed to the bottom frame of the feeding and conveying mechanism (2); the drive module (42) includes a servo motor (421), a synchronous gear set (422), and a reducer (423), the output end of the servo motor (421) is connected to the input end of the reducer (423) through the synchronous gear set (422), and so on. The output end of the reducer (423) drives the screw transmission module (43) to move; the screw transmission module (43) includes a horizontally arranged ball screw (431), the two ends of the ball screw (431) have opposite threads and are fixed to the two ends of the base (41) by a screw support (432), the input end of the ball screw (431) is keyed to the output end of the reducer (423); the guide module (44) includes a central guide shaft (441), the central guide shaft (441) and the ball screw ( 431) Arranged in parallel, and fixed at both ends to the base (41) by shaft support seats (442); the lifting module (45) includes two lifting slides (451), two lifting sliders (452), a lifting fixed seat (453), a lifting cylinder (454), and a lifting plate (455); the lifting slides (451) are provided with threaded holes that match the ball screw (431), and the lifting slides (451) are threadedly connected to the ball screw (431) through the threaded holes, and the two lifting slides (451) are connected in parallel. The lifting slider (452) is fixedly connected to the lifting slide (451) and slides with the central guide shaft (441); the bottom of the lifting fixed seat (453) is fixedly connected to the top of the lifting slide (451); the cylinder body of the lifting cylinder (454) is fixed on the lifting fixed seat (453), and the piston rod of the lifting cylinder (454) is fixedly connected to the bottom of the lifting plate (455).

3. An adjustable bundling device for carton production according to claim 2, characterized in that, The left clamping assembly (6) and the right clamping assembly (7) are both fixed to the lifting plate (455); the left clamping assembly (6) includes an L-shaped base (61), a horizontal clamping cylinder (62), a left pressure plate (64), and two left guide shafts (63); the L-shaped base (61) is fixed to the left side of the lifting plate (455), the cylinder body of the horizontal clamping cylinder (62) is fixed to the vertical side of the L-shaped base (61), the piston rod of the horizontal clamping cylinder (62) is fixedly connected to the left side of the left pressure plate (64), and the two left guide shafts (63) are arranged parallel to each other on both sides of the horizontal clamping cylinder (62), with one end slidingly fitted to the L-shaped base (61). The other end is fixedly connected to the left side of the left pressure plate (64); the right clamping assembly (7) includes a vertical fixing seat (71), a buffer (72), a right pressure plate (74) and two right guide shafts (73); the vertical fixing seat (71) is fixed to the right side of the lifting plate (455), the buffer (72) is fixed horizontally on the vertical side of the vertical fixing seat (71), the piston rod of the buffer (72) abuts against the right side of the right pressure plate (74), and the two right guide shafts (73) are arranged parallel to each other on both sides of the buffer (72), one end of which is slidably engaged with the vertical fixing seat (71), and the other end is fixedly connected to the right side of the right pressure plate (74).

4. An adjustable bundling device for carton production according to claim 2, characterized in that, The spacing between the lifting fixed seats (453) of the screw drive module (43) can be adjusted by the drive module (42) to adapt to cartons of different widths; the lifting slide (451) is also equipped with a displacement sensor (456) to detect the movement position of the lifting slide (451) in real time and feed it back to the control system.

5. An adjustable bundling device for carton production as defined in claim 1, wherein, The blocking assembly (5) includes a blocking bracket (51), a blocking cylinder (52), a buffer guide mechanism (53), a blocking baffle (54), and a positioning detection sensor (55); the blocking bracket (51) is a U-shaped plate structure, which is fixed to the bottom frame of the feeding conveying mechanism (2) by bolts, and is located on the downstream side of the central lifting assembly (4) along the feeding conveying direction; the blocking cylinder (52) is vertically arranged in the U-shaped groove of the blocking bracket (51), its cylinder body is fixedly connected to the blocking bracket (51), and its piston rod extends vertically upward; the buffer guide mechanism (53) includes two guide slides (531) and two A linear bearing seat (532); two guide rods (531) are arranged parallel to the piston rod of the blocking cylinder (52), with the lower end fixedly connected to the upper surface of the blocking bracket (51) through the linear bearing seat (532), and the upper end fixedly connected to the bottom of the blocking baffle (54); the top of the piston rod of the blocking cylinder (52) is fixedly connected to the center of the bottom of the blocking baffle (54); the positioning detection sensor (55) is a photoelectric sensor, fixed on the top of the blocking bracket (51), used to detect whether the carton has reached the strapping station, and transmit the signal to the control system to control the blocking cylinder (52) to move.

6. An adjustable bundling device for carton production according to claim 1, characterized in that, The feeding conveyor (2) and the unloading conveyor (3) are both roller conveyors, including a conveyor frame (21), a drive roller (22), a driven roller (23), a conveyor chain (24), and a conveyor drive motor (25). The drive roller (22) and the driven roller (23) are arranged in parallel at both ends of the conveyor frame (21), and the conveyor chain (24) is tensioned and wound between the drive roller (22) and the driven roller (23). The conveyor drive motor (25) is connected to the input shaft of the drive roller (22) through a chain transmission mechanism to drive the conveyor chain (24) to move. The conveying speed of the feeding conveyor (2) is the same as that of the unloading conveyor (3), and both are matched with the binding rhythm of the ring strapping machine (1).

7. The adjustable cardboard box production bundling device according to claim 1, characterized in that: The ring strapping machine (1) includes a strapping table (11), a ring track (12), a strapping head (13), and a heat sealing device (14). The ring track (12) is a closed ring structure, fixed on the strapping table (11), and is composed of multiple extendable track segments. The radius of the ring track (12) can be adjusted by adjusting the length of the track segments. The strapping head (13) is slidably set on the ring track (12) and is used to carry the strapping tape around the carton. The heat sealing device (14) is fixed on one side of the ring track (12) and is used to heat seal and fix the strapping tape after it has been wrapped.

Images