A coiled material bundling machine and a coiled material packaging line

Abstract

The utility model discloses a kind of coiled material bundling machines and coiled material packaging production lines, bundling machine includes machine body frame, bundling device and transport device;Bundling device is equipped with multiple, parallel arrangement on machine body frame, including bundling frame and the bundling head assembly arranged on it, lifting assembly and puncture assembly are further equipped on bundling frame, lifting assembly is connected with bundling head assembly, for driving bundling head assembly movement along vertical direction, puncture assembly is inserted below the wood tray loaded with coiled material to guide the coiled material and wood tray around set bale belt;Transport device is arranged in the tunnel below machine body frame, and transport device includes the roller flat plate for carrying coiled material, and U-shaped groove is equipped on roller flat plate It is through the open direction of U-shaped groove and the puncture direction of puncture assembly parallel, so that puncture assembly can pass through, and guide bale belt by being inserted below wood tray, adapt to the multiple coiled materials of vertical and horizontal packaging.

Description

Technical Field

[0001] This utility model relates to the field of roll packaging technology, and in particular to a roll bundling machine and a roll packaging production line. Background Technology

[0002] With the development of automation technology in modern industrial production, various automated equipment are playing an increasingly important role in improving quality and efficiency and reducing labor costs. In the warehousing and logistics of coiled products such as steel coils and aluminum coils, bundling with strapping is an essential process to facilitate transportation and prevent the coils from unraveling during hoisting and transport. Driven by this demand, fully automatic bundling machines have emerged to replace traditional manual operations and have gradually become the mainstream packaging equipment.

[0003] In more advanced traditional automation technologies, such as the fully automatic single-bundle packaging system for vertical strip steel coils disclosed in Chinese Patent CN110816934A, a "workpiece lifting" approach is used to handle automated circumferential bundling. Specifically, the system first uses an internal roller conveyor to transport the vertical strip steel coil to a designated station, and then rotates the coil and tightens the tail end using a reverse-rotating roller conveyor. After the tail end is completed, the core step is to activate a lifting device located at the bottom of the equipment to lift the entire strip steel coil upwards. The strip steel coil is then pushed into a fixed-height threading guide located above. Subsequently, a bundling device at the other end of the guide releases and tightens the strapping, completing the circumferential bundling of the coil.

[0004] However, current bundling methods or traditional devices have some problems. For example, the automated bundling machines mentioned above have relatively limited functionality, usually designed only for specific bundling methods, and lack the ability to cope with diverse packaging needs. When the roll material is placed on a wooden pallet, the bottom beam structure of the pallet completely blocks the path of the strapping, causing these automated devices to be unable to complete the overall bundling of the upright roll material and the pallet, resulting in obvious breaks in the automated process. Utility Model Content

[0005] Therefore, it is necessary to provide a roll bundling machine, a roll bundling method, and a roll packaging production line to address the above problems.

[0006] This application provides a roll baling machine, comprising:

[0007] Body frame;

[0008] The baling device includes multiple baling devices arranged in parallel on the machine frame, including a baling frame and a baling head assembly mounted thereon. The baling frame is also equipped with a lifting assembly and a piercing assembly. The lifting assembly is connected to the baling head assembly and is used to drive the baling head assembly to move in a vertical direction. The piercing assembly extends under the wooden pallet loaded with the roll material to guide the strapping around the roll material and the wooden pallet.

[0009] A transport device is installed in a tunnel below the machine frame. The transport device includes a roller plate for carrying the roll material, and the roller plate is provided with a through U-shaped groove.

[0010] Optionally, the transport device further includes a steering mechanism for driving the roller plate to rotate in a horizontal plane and adjusting the roller plate or U-shaped groove to be parallel to the piercing direction of the piercing assembly for piercing.

[0011] Optionally, it also includes a lifting assembly disposed between the baling device and the machine frame, the lifting assembly including a lifting cylinder and a lifting guide rail.

[0012] The lifting cylinder is mounted on the machine frame, and the piston rod of the lifting cylinder is hinged to the baler frame. The lifting guide rail includes a lifting slide rail and a slider. One of the slide rail and the slider is mounted on the baler frame, and the other is mounted on the machine frame.

[0013] Optionally, the lifting assembly includes a lifting motor, sprocket, and chain mounted on the baler frame. The lifting motor drives the baling head assembly to move along a guide rail mounted on the baler frame via chain drive, so as to move closer to or away from the roll material.

[0014] The baling head assembly includes a baling head, a contact sensor, an upper guide valve, and side guide grippers. The contact sensor detects when the baling head contacts the roll material and sends a stop signal. The upper guide valve and side guide grippers guide the strapping to wrap around the roll material. The side guide grippers are arranged in pairs on the baling machine frame and are driven by a slide cylinder to move towards each other until they abut against the roll material, preventing the roll material from shifting when the strapping is tightened.

[0015] Optionally, the transport device further includes a track assembly laid in a tunnel below the machine frame, and a car body mounted on the track assembly, with the roller plate and steering mechanism mounted on the car body.

[0016] Optionally, the puncture assembly includes a pair of puncture modules, each puncture module including a servo motor and a guide rod. The guide rod has a guide groove and a rack on its side. The output shaft of the servo motor meshes with the rack for transmission. The pair of guide rods move towards each other and close together under the drive of the servo motor, forming a closed-loop channel for the strapping to pass through.

[0017] Optionally, it also includes a strapping storage device and a strapping take-up and take-up device disposed on the strapping frame, for working together to complete the storage and retrieval of strapping;

[0018] The belt storage device includes a frame and a fixed pulley group and a sliding guide rail mounted thereon, as well as a movable pulley group mounted on the sliding guide rail;

[0019] The take-up and undo device includes a mounting frame and a strapping mounting plate, a drive motor, and a residual material detection component mounted thereon. The drive motor and the strapping mounting plate are respectively located at both ends of the mounting frame. The output shaft of the drive motor is connected to the strapping mounting plate and is used to drive the strapping mounting plate to rotate for take-up and undoing. The residual material detection component is used to detect the residual amount of strapping roll on the strapping mounting plate.

[0020] Optionally, the remaining material detection component includes a cantilever and a proximity switch mounted on the mounting frame. Under the action of gravity, the cantilever contacts the strapping roll on the strapping mounting plate. When the remaining amount of strapping is insufficient, the cantilever descends to a preset position, and the proximity switch senses the cantilever and sends an insufficient strapping signal.

[0021] Optionally, it also includes a strapping channel, including a turning channel and a straight channel, for guiding the strapping from the strapping storage device to the baling head assembly.

[0022] This application also provides a roll packaging production line, including the aforementioned roll bundling machine.

[0023] Compared with the prior art, the technical solution provided in this application has the following advantages:

[0024] The aforementioned roll baling machine utilizes a through-hole U-shaped groove on the roller plate carrying the roll. When the strapping needs to be threaded, the opening direction of the U-shaped groove aligns with the travel path of the piercing component, allowing the piercing component to pass smoothly and successfully extend under the wooden pallet to guide the strapping. This design not only automates the baling of palletized goods, greatly improving packaging efficiency and reducing manual intervention, but also adapts to various rolls used in both vertical and horizontal packaging, significantly enhancing the equipment's market adaptability and functional versatility. Secondly, by setting up multiple parallel baling devices, production efficiency is greatly improved. Compared to the traditional sequential mode of single-head equipment that requires baling one pass at a time, this parallel design allows for simultaneous or near-synchronous baling of multiple passes on the same roll, significantly shortening the baling cycle time of a single roll and greatly improving the processing capacity and output of the entire production line. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a roll baling machine provided in one embodiment of this application;

[0026] Figure 2 A schematic diagram of the overall structure of the transport device for a roll baling machine provided in an embodiment of this application;

[0027] Figure 3 A schematic diagram of the vertical bundling structure of a roll bundling machine provided in an embodiment of this application;

[0028] Figure 4 A schematic diagram of a horizontal bundling structure of a roll bundling machine provided in an embodiment of this application;

[0029] Figure 5 A schematic diagram of the bundling device of a roll bundling machine provided in an embodiment of this application;

[0030] Figure 6 A schematic diagram of the bundling head structure of a roll bundling machine provided in an embodiment of this application;

[0031] Figure 7 A schematic diagram of the transport device of a roll bundling machine provided in an embodiment of this application;

[0032] Figure 8 A schematic diagram of the piercing assembly of a roll bundling machine provided in an embodiment of this application;

[0033] Figure 9 A schematic diagram of the storage device of a roll baler provided in an embodiment of this application;

[0034] Figure 10 This is a schematic diagram of the winding and unwinding device of a roll baler provided in an embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100. Machine frame; 200. Baling device; 210. Baling machine frame; 220. Baling head assembly; 221. Baling head; 222. Contact sensor; 223. Side guide gripper; 224. Slide cylinder; 230. Lifting assembly; 231. Lifting motor; 232. Chain; 240. Puncture assembly; 241. Servo motor; 242. Guide rod; 243. Guide groove; 244. Rack; 300. Conveying device; 310. Roller plate; 311. U-shaped groove; 3 20. Steering mechanism; 330. Track assembly; 340. Car body; 400. Lifting assembly; 410. Lifting cylinder; 420. Lifting guide rail; 500. Belt storage device; 510. Stand; 520. Fixed pulley block; 530. Sliding guide rail; 540. Moving pulley block; 600. Belt take-up and release device; 610. Mounting frame; 620. Strapping mounting plate; 630. Drive motor; 640. Excess material detection assembly; 641. Cantilever; 642. Proximity switch; 700. Belt threading channel. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0038] See Figures 1 to 4 An embodiment of this utility model provides a roll baling machine, comprising:

[0039] Body frame 100;

[0040] The baling device 200 has multiple units arranged in parallel on the machine frame 100, including a baling frame 210 and a baling head assembly 220 disposed thereon. The baling frame 210 is also provided with a lifting assembly 230 and a piercing assembly 240. The lifting assembly 230 is connected to the baling head assembly 220 and is used to drive the baling head assembly 220 to move in the vertical direction. The piercing assembly 240 extends into the wooden pallet loaded with the roll material to guide the strapping to wrap around the roll material and the wooden pallet.

[0041] The transport device 300 is installed in the tunnel below the machine frame 100. The transport device 300 includes a roller plate 310 for carrying the roll material. The roller plate 310 is provided with a through U-shaped groove 311.

[0042] In this embodiment, the U-shaped groove 311 provides a passageway for the piercing assembly 240, allowing it to smoothly extend under the wooden pallet and guide the strapping to complete the overall wrapping of the roll and the pallet. This design cleverly solves the industry pain point that traditional balers cannot form a complete binding path due to obstruction by the pallet bottom beam.

[0043] Secondly, by setting up multiple parallel bundling devices 200, production efficiency is greatly improved. Compared to the traditional sequential mode where single-head equipment requires bundling one by one, this parallel design allows for simultaneous or near-synchronous bundling of multiple layers of the same roll, significantly shortening the bundling cycle time of a single roll and greatly improving the processing capacity and output of the entire production line. In this embodiment, for rolls requiring multiple layers of bundling, traditional single-head equipment must complete the task in a serial manner of movement-bundling-movement-bundling, which is time-consuming. However, the multi-head parallel design of this embodiment can simultaneously or continuously start all bundling devices 200 at very short intervals after the transport device 300 positions the roll once, completing all bundling tasks in one go. This reduces the overall packaging cycle time of a single roll to almost the time of a single bundling, greatly improving the overall production capacity and cycle time of the line. Secondly, different bundling devices 200 can be pre-configured with straps of different materials or specifications (e.g., one loaded with steel strapping and another with plastic-coated steel strapping), thus easily achieving mixed-material bundling of the same roll material in a single process to meet special packaging requirements. This completely avoids long downtime caused by changing different straps on single-head equipment, making it more powerful. Finally, the multi-head design also brings improved system redundancy and reliability. When individual bundling devices 200 require maintenance or malfunction, the remaining devices can continue to operate, ensuring production continuity and reducing the impact of single-point failures on the overall line operation.

[0044] Finally, the lifting assembly 230 equipped on each bundling device 200 gives the equipment the ability to automatically adapt to different specifications of roll materials. This assembly can drive the bundling head assembly 221 220 to move vertically to precisely match roll materials of different diameters, ensuring that the strapping always acts in the most effective position. In summary, the organic combination of these technical features enables this roll baling machine to not only solve the automation problem in specific (palletized) scenarios, but also to have the advantages of high efficiency and high adaptability.

[0045] In one embodiment, the transport device 300 further includes a steering mechanism 320 for driving the roller plate 310 to rotate in a horizontal plane and adjusting the orientation of the U-shaped groove 311 for the piercing assembly 240 to pass through.

[0046] This embodiment solves the problem of one strapping band failing to pass through the bottom crossbeam in vertical bundling by coordinating the piercing assembly 240 and the steering transport device 300 with a U-shaped groove 311. In traditional automated bundling processes, the wooden pallet at the bottom of the roll forms a physical obstacle, preventing the strapping band from forming a loop. This embodiment addresses this by creating a through U-shaped groove 311 on the roller plate 310 carrying the roll and equipping it with a steering mechanism 320. When strapping is needed, the steering mechanism 320 drives the roller plate 310 to rotate in the horizontal plane, adjusting the bundling position of the roll to be parallel to the piercing direction of the piercing assembly 240, thus achieving both vertical and horizontal bundling. During vertical packaging, when bundling is performed parallel to the transport line, the lifting cylinder 410 retracts, allowing the piercing assembly 240 to pass through the U-shaped groove 311. At other times, the lifting cylinder 410 extends, raising the entire baling frame 210, allowing the piercing assembly 240 to pass through the gap between the rollers and the wooden pallet for strapping. This action creates a channel on the previously closed bearing surface, allowing the piercing assembly 240 to pass smoothly and successfully extend under the wooden pallet to guide the strapping. This design not only automates the strapping of palletized goods, greatly improving packaging efficiency and reducing manual intervention, but its steering mechanism 320 also gives the equipment greater flexibility. By controlling its rotation angle, complex strapping methods such as multi-angle and cross-shaped strapping of rolls can be easily achieved, adapting to various rolls for vertical and horizontal packaging, significantly enhancing the equipment's market adaptability and functional versatility.

[0047] See Figure 5 In one embodiment, a lifting assembly 400 is also included, disposed between the baling device 200 and the machine frame 100. The lifting assembly 400 includes a lifting cylinder 410 and a lifting guide rail 420. The lifting cylinder 410 is disposed on the machine frame 100, and the piston rod of the lifting cylinder 410 is hinged to the baling frame 210. The lifting guide rail 420 includes a lifting slide rail and a slider. One of the lifting slide rail and the slider is disposed on the baling frame 210, and the other is disposed on the machine frame 100.

[0048] Specifically, in this embodiment, when the lifting cylinder 410 extends, it drives the baling frame 210 to rise vertically by a height H1, so that the lowest point of the piercing device is 5-10mm higher than the roller surface of the rotating transport trolley, thus achieving piercing below the bottom beam of the pallet; when the lifting cylinder 410 retracts, the baling frame 210 descends to the initial height H0, so that the highest point of the piercing device is 5-10mm lower than the roller surface of the rotating transport trolley, thus achieving piercing below the upper beam of the pallet.

[0049] This embodiment, through the lifting component 400, endows the entire bundling device 200 with precise and switchable stroke control capabilities in the vertical dimension, thereby upgrading the originally single piercing path to multiple preset packaging modes, greatly enhancing the automation level and functional versatility of the equipment. Specifically, by extending and retracting the lifting cylinder 410, the entire bundling frame 210 (along with the piercing component 240 on it) can be driven to switch between two or more precise heights.

[0050] When the lifting cylinder 410 extends, raising the baler frame 210 to height H1, the path of the piercing device is raised as a whole, ensuring that its lowest point is higher than the roller surface of the transport trolley. This action allows the piercing path to completely avoid the rollers of the transport device 300, thus achieving circumferential baling of the entire pallet (including its bottom beam), i.e., piercing below the bottom beam of the pallet. When the lifting cylinder 410 retracts and the baler frame 210 descends to its initial height H0, the path of the piercing device is lower than the roller surface of the transport trolley. At this point, the U-shaped groove 311 mentioned above or the forklift hole on the pallet itself can be used to achieve baling through the internal space of the pallet, i.e., piercing below the upper beam of the pallet. Therefore, the introduction of the lifting assembly 400 enables the baler to automatically complete two different baling methods—pallet-penetrating and pallet-holding—in a single operation, solely through program control, to meet different stability requirements. This is something that a fixed-height baler cannot achieve.

[0051] See Figure 5 and Figure 6 In one embodiment, the lifting assembly 230 includes a lifting motor 231, a sprocket, and a chain 232 disposed on the baler frame 210. The lifting motor 231 drives the baler head assembly 220 to move along the guide rail disposed on the baler frame 210 via the chain 232 to move closer to or away from the roll material.

[0052] The baling head assembly 220 includes a baling head 221, a contact sensor 222, an upper guide valve, and side guide grippers 223. The contact sensor 222 is used to detect when the baling head 221 contacts the roll material and sends a stop signal. The upper guide valve and side guide grippers 223 are used to guide the strapping to be wound above the roll material. The side guide grippers 223 are arranged in pairs on the baling machine frame 210 and are driven to move towards each other to abut the roll material by the slide cylinder 224 to prevent the roll material from shifting when the strapping is tightened.

[0053] In this embodiment, by designing the lifting assembly 230 as a transmission system consisting of a lifting motor 231, a sprocket, and a chain 232, a reliable, stable, and industrially adaptable automated vertical positioning capability is provided for the bundling head assembly 220. Chain 232 transmission, as a mature industrial transmission method, has the advantages of high load-bearing capacity, smooth transmission, and low slippage. It ensures that the bundling head assembly 220 can be precisely and powerfully driven to the required working height when responding to rolls of different diameters, replacing cumbersome manual adjustments. This allows the equipment to seamlessly connect with production batches of different specifications, adapting to rolls with diameters ranging from Φ800-Φ2200mm and widths ranging from 800-2000mm.

[0054] In this embodiment, when the bundling head 221 descends, the contact sensor 222 can detect its contact with the roll surface in real time and immediately issue a stop signal, realizing the adaptive detection and precise positioning of the bundling head 221 to the roll size, while effectively preventing equipment collisions. Secondly, the coordinated operation of the upper guide gate and the side guide grippers 223 ensures the stability and precision of the bundling process. Specifically, before the strapping is tightened, the paired side guide grippers 223 are driven to move in opposite directions by the slide cylinder 224 and actively abut against and clamp the sides of the roll. This provides a temporary and robust support for the roll, effectively counteracting the lateral force generated during high-speed tightening of the strapping, thereby preventing possible deviation, shaking, or rotation of the roll. This ensures that the strapping is ultimately secured in the preset position, improving the bundling quality and consistency of the final product.

[0055] See Figure 2 and Figure 7 In one embodiment, the transport device 300 further includes a track assembly 330 laid in a tunnel below the body frame 100, and a vehicle body 340 disposed on the track assembly 330, with a roller plate 310 and a steering mechanism 320 disposed on the vehicle body 340.

[0056] This embodiment provides a highly stable and precise automated conveying platform for the entire material handling and positioning system. First, the use of a track and vehicle body 340 ensures that the movement path of the transport device 300 is fixed and repeatable when carrying heavy rolls of material, greatly improving the accuracy of long-distance transport and final positioning, laying the foundation for subsequent actions such as piercing and clamping by the bundling frame 210. Second, placing the entire transport device 300 in a tunnel beneath the machine body achieves a sunken layout of functional areas. This not only makes the operating space above the equipment more open and safe but also facilitates seamless integration with other ground or elevated conveying systems (such as overhead cranes and walking beams) within the factory, optimizing the logistics flow of the entire workshop. Therefore, this design, which integrates the roller plate 310 and the steering mechanism 320 onto the track vehicle body 340, upgrades the transport device 300 from a simple support platform into an automated track shuttle, achieving full automation from feeding and rotational positioning to discharging, which is a crucial guarantee for the efficient and stable operation of the entire system.

[0057] See Figure 8 In one embodiment, the puncture assembly 240 includes a pair of puncture modules. Each puncture module includes a servo motor 241 and a guide rod 242. The guide rod 242 has a guide groove 243 and a rack 244 on its side. The output shaft of the servo motor 241 meshes with the rack 244 for transmission. Driven by the servo motor 241, the pair of guide rods 242 move towards each other until they close, forming a closed-loop channel for the strapping to pass through. Specifically, in this embodiment, the pair of guide rods 242 also have an open state where they move linearly in opposite directions to a distance ≥3700mm, forming an unobstructed area for the rotating transport trolley to pass through.

[0058] In this embodiment, a servo motor 241 is used as the power source, which, compared to traditional cylinders or ordinary motors, enables precise closed-loop control of the position, speed, and acceleration of the piercing module. When the guide rod 242 closes in opposite directions, it can precisely align, ensuring that the guide groove 243 on it forms a closed-loop channel, greatly improving the success rate of strapping. When opening in the reverse direction, it can also move quickly and smoothly to the preset width. In the closed state, it dynamically constructs a physical guide path, solving the problem of stable strapping delivery in complex spaces (such as under a pallet). In the open state, by setting the spacing to ≥3700mm, a sufficiently spacious and completely unobstructed passage or rotation area is created for the rotating transport trolley below. This solves the spatial interference problem between the strapping mechanism and the material transport mechanism, enabling complex automated collaborative actions (such as trolley entry, 90° rotation, and trolley exit) to be realized safely and smoothly, which is key to the efficient and automated operation of the entire equipment.

[0059] See Figure 9 and Figure 10 In one embodiment, it also includes a strapping storage device 500 and a strapping take-up and take-up device 600 disposed on the strapping frame 210, for working together to complete the storage and retrieval of strapping.

[0060] The belt storage device 500 includes a frame 510 and a fixed pulley block 520 and a sliding guide rail 530 disposed thereon, as well as a movable pulley block 540 disposed on the sliding guide rail 530.

[0061] The take-up and undo device 600 includes a mounting frame 610 and a strapping mounting plate 620, a drive motor 630, and a material surplus detection component 640 mounted thereon. The drive motor 630 and the strapping mounting plate 620 are respectively mounted at both ends of the mounting frame 610. The output shaft of the drive motor 630 is connected to the strapping mounting plate 620 and is used to drive the strapping mounting plate 620 to rotate for take-up and undoing. The material surplus detection component 640 is used to detect the remaining amount of strapping roll on the strapping mounting plate 620.

[0062] In this embodiment, the moving and fixed pulley block 520 structure adopted by the tape storage device 500 is essentially a low-inertia buffer or accumulator for strapping. It decouples the direct power connection between the high-inertia strapping mounting disc 620 and the strapping head 221, which requires rapid start-stop operation. When the strapping head 221 feeds tape at extremely high speed, it can instantly extract the pre-stored strapping from this pulley block buffer without waiting for the tray to start, thus ensuring a very short operating cycle and smooth tape feeding. Conversely, when taking back tape or replenishing the tray, the device can also effectively absorb excess tape to prevent the strapping from becoming loose or knotted.

[0063] Meanwhile, the primary task of the drive motor 630 of the strapping device 600 is not to directly match the instantaneous speed of the strapping head 221, but rather to smoothly start and replenish the strapping in the buffer after receiving a signal from the strapping storage device 500 indicating insufficient strapping. The remaining material detection component 640, by monitoring the remaining strapping on the tray in real time, can issue an early warning before it runs out, which is crucial for maintaining the continuity of the automated production line. It avoids unexpected downtime caused by sudden strapping depletion and allows operators to perform planned material replacements, thereby maximizing the effective operating time and production efficiency of the equipment. The combination of these two components ensures a smooth, efficient, and predictable process from the source of strapping supply to end-use.

[0064] See Figure 10 In one embodiment, the excess material detection component 640 includes a cantilever 641 and a proximity switch 642 disposed on the mounting frame 610. Under the action of gravity, the cantilever 641 contacts the strapping roll on the strapping mounting plate 620. When the amount of strapping remaining is insufficient, the cantilever 641 descends to a preset position, and the proximity switch 642 senses the cantilever 641 and sends an insufficient strapping signal.

[0065] In this embodiment, under its own weight, one end of the cantilever 641 always rests on the outer surface of the strapping roll. As the strapping is continuously consumed, the diameter of the strapping roll decreases, and the cantilever 641 slowly descends accordingly. It converts a continuously changing physical quantity (the diameter of the strapping roll) into a mechanical position change that can be precisely captured. When the cantilever 641 descends to a pre-set alarm threshold position, it enters the sensing area of ​​the fixedly installed proximity switch 642, thereby triggering the switch to emit an electronic signal indicating insufficient strapping. This combination of a purely mechanical lever and a standard industrial switch is simple in structure, robust and durable, and almost unaffected by harsh environments such as dust and oil. Compared to high-cost and high-maintenance detection solutions such as laser or vision, it has higher stability and economy. Therefore, this design achieves the key early warning function in the simplest way, effectively ensuring the continuity of automated production.

[0066] See Figure 1 In one embodiment, the device also includes a strapping channel 700, comprising a turning channel and a straight channel, for guiding strapping from the strapping storage device 500 to the bundling head assembly 220.

[0067] In this embodiment, the threading channel 700 and its included turning and straight channels provide a fully enclosed, low-friction, and path-defined physical constraint for the high-speed conveying of strapping. Strapping (especially steel or rigid plastic-coated steel strapping) is highly susceptible to bending, twisting, or deviation due to its own weight, inertia, or material memory during high-speed conveying without effective guidance, leading to feeding failure. This is one of the most common failure points in automated strapping equipment.

[0068] The design of the strapping channel 700 ensures stability during long-distance transport through its straight channel (straight section), preventing strapping from sagging and swaying. The turning channel (corner section) forces the strapping to change direction along a smooth arc, effectively preventing sharp bends or twists at corners. Therefore, this channel system not only guarantees 100% success and reliability in the strapping process from the storage end to the bundling end, but also provides safety protection for the high-speed moving strapping due to its enclosed design. It allows the strapping storage device 500 and the bundling head assembly 220 to be placed less close together in the overall machine layout, providing greater flexibility in the overall structural design of the equipment and ensuring high reliability and efficiency in the automated process.

[0069] Another embodiment of this utility model provides a roll packaging production line, including the above-mentioned roll bundling machine.

[0070] The roll packaging production line provided in this embodiment of the utility model, by integrating the aforementioned roll bundling machine, transforms the bundling station in the packaging production line into a flexible processing center capable of adapting to diverse needs. This significantly improves the automation level, processing efficiency, and process adaptability of the entire production line, enabling it to handle highly mixed products. Whether it's vertical rolls requiring high-strength cross-bundling, horizontal rolls requiring multiple parallel bundling, or even rolls with wooden pallets, all can be processed on the same production line at the same station through automatic switching of program instructions, achieving true single-piece flow and flexible production. This not only greatly simplifies the physical layout and material conveying logic of the production line, but more importantly, it ensures that the entire production line can operate efficiently as an uninterrupted, organic whole, thereby significantly shortening the product off-line cycle and improving the factory's ability to respond quickly to changes in market orders.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A roll baling machine, characterized in that, include: Body frame (100); A baling device (200) is provided, and multiple baling devices (200) are arranged in parallel on the machine frame (100). The baling device (200) includes a baling frame (210) and a baling head assembly (220) disposed thereon. The baling frame (210) is also provided with a lifting assembly (230) and a piercing assembly (240). The lifting assembly (230) is connected to the baling head assembly (220) and is used to drive the baling head assembly (220) to move in the vertical direction. The piercing assembly (240) extends into the wooden pallet loaded with the roll material to guide the strapping to wrap around the roll material and the wooden pallet. The transport device (300) is located in the tunnel below the machine frame (100) and includes a roller plate (310) for carrying the roll material, the roller plate (310) having a through U-shaped groove (311).

2. The roll baling machine according to claim 1, characterized in that, The transport device (300) further includes a steering mechanism (320) for driving the roller plate (310) to rotate in the horizontal plane and adjusting the roller plate (310) or the U-shaped groove (311) to be parallel to the piercing direction of the piercing assembly (240) for piercing.

3. The roll baling machine according to claim 1, characterized in that, It also includes a lifting assembly (400) disposed between the bundling device (200) and the machine frame (100), the lifting assembly (400) including a lifting cylinder (410) and a lifting guide rail (420). The lifting cylinder (410) is mounted on the machine frame (100), and the piston rod of the lifting cylinder (410) is hinged to the baler frame (210). The lifting guide rail (420) includes a lifting slide rail and a slider. One of the slide rail and the slider is mounted on the baler frame (210), and the other is mounted on the machine frame (100).

4. The roll baling machine according to claim 1, characterized in that, The lifting assembly (230) includes a lifting motor (231), a sprocket, and a chain (232) disposed on the baler frame (210). The lifting motor (231) drives the baling head assembly (220) to move along the guide rail disposed on the baler frame (210) via the chain (232) to move closer to or away from the roll material. The bundling head assembly (220) includes a bundling head (221), a contact sensor (222), an upper guide valve, and side guide grippers (223). The contact sensor (222) is used to detect when the bundling head (221) contacts the roll material and sends a stop signal. The upper guide valve and side guide grippers (223) are used to guide the strapping to be wound above the roll material. The side guide grippers (223) are arranged in pairs on the bundling machine frame (210) and are driven to move towards each other to abut the roll material by a slide cylinder (224) to prevent the roll material from shifting when the strapping is tightened.

5. The roll bundling machine according to claim 1, characterized in that, The transport device (300) also includes a track assembly (330) laid in a tunnel below the body frame (100) and a car body (340) mounted on the track assembly (330), wherein the roller plate (310) and the steering mechanism (320) are mounted on the car body (340).

6. The roll bundling machine according to claim 1, characterized in that, The puncture assembly (240) includes a pair of puncture modules, each including a servo motor (241) and a guide rod (242). The guide rod (242) has a guide groove (243) and a rack (244) on its side. The output shaft of the servo motor (241) meshes with the rack (244) for transmission. The pair of guide rods (242) move towards each other and close together under the drive of the servo motor (241), forming a closed-loop channel for the strapping to pass through.

7. The roll baling machine according to claim 1, characterized in that, It also includes a strapping storage device (500) and a strapping take-up and take-up device (600) installed on the strapping frame (210) for working together to complete the storage and retrieval of strapping. The belt storage device (500) includes a stand (510), a fixed pulley assembly (520) and a sliding guide rail (530) disposed thereon, and a movable pulley assembly (540) disposed on the sliding guide rail (530); The take-up and undo device (600) includes a mounting frame (610) and a strapping mounting plate (620), a drive motor (630), and a residual material detection component (640) disposed thereon. The drive motor (630) and the strapping mounting plate (620) are respectively disposed at both ends of the mounting frame (610). The output shaft of the drive motor (630) is connected to the strapping mounting plate (620) and is used to drive the strapping mounting plate (620) to rotate for take-up and undoing. The residual material detection component (640) is used to detect the residual amount of strapping roll on the strapping mounting plate (620).

8. The roll baling machine according to claim 7, characterized in that, The remaining material detection component (640) includes a cantilever (641) and a proximity switch (642) mounted on the mounting frame (610). Under the action of gravity, the cantilever (641) contacts the strapping roll on the strapping mounting plate (620). When the remaining amount of strapping is insufficient, the cantilever (641) descends to a preset position, and the proximity switch (642) senses the cantilever (641) and sends an insufficient strapping signal.

9. The roll baling machine according to claim 7, characterized in that, It also includes a strapping channel (700), including a turning channel and a straight channel, for guiding the strapping from the strapping storage device (500) to the baling head assembly (220).

10. A roll packaging production line, characterized in that, The roll bundling machine includes any one of claims 1-9.

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