An automated sleeve packaging line for roll packaging and a method of operation thereof

Abstract

This invention belongs to the field of packaging equipment technology and discloses an automated sleeve packaging production line for roll packaging and its working method. It includes a tube-threading station, a capping and screw-on station, an adhesive-applying station, and a unloading station connected in series by a stepping feeding mechanism. In the tube-threading station, a push-positioning trolley drives a first push plate to abut the left end of the roll material. A lifting mechanism lifts the right end of the roll material to form a suspended guide section. The conveyor frame aligns the sleeve and partially inserts it, after which the lifting mechanism resets, and the push-tube mechanism pushes the sleeve to complete the tube threading. The capping and screw-on station uses parallel first and second crossbeams. The first crossbeam has cross slides with three-axis robotic arms and automatic screw machines at both ends for installing end caps and locking some screws; the second crossbeam locks the remaining screws at both ends. The adhesive-applying station automatically applies adhesive tape, and the unloading station delivers the finished product. This invention achieves fully automated production of roll material, including automatic tube threading, simultaneous capping and screw-on at both ends, and adhesive application, with high efficiency and stable quality.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, specifically to an automated sleeve packaging production line for roll packaging and its operating method. Background Technology

[0002] When packaging certain roll materials, a large-diameter rigid sleeve is typically required to provide support, moisture protection, scratch protection, and facilitate transportation and storage. To further improve the packaging's airtightness and structural strength, end caps are inserted into both ends of the sleeve and secured with screws; sometimes, tape is also wrapped around the screws for protection. Currently, these packaging processes are mostly carried out in separate operations or manually. This results in low overall production efficiency and poor quality stability, failing to meet the demands of high-speed, high-quality automated production lines. Summary of the Invention

[0003] The problem solved by this invention is that the existing technology of roll packaging adopts a split operation or manual operation, which results in low production efficiency and poor quality stability. This invention provides a stable, high-speed, and high-quality automated roll packaging production line and its working method.

[0004] This invention is achieved through the following technical solution: an automated sleeve packaging production line for roll packaging, comprising components arranged sequentially along the material conveying direction:

[0005] The tube-threading station is equipped with tube-threading equipment for threading the roll material into the sleeve;

[0006] The capping and screwing station is equipped with a capping and screwing mechanism, which is used to install end caps and tighten screws at both ends of the sleeve that has been inserted into the roll material.

[0007] The tape application station is equipped with a tape application mechanism for applying tape to the screw holes of the sleeve.

[0008] The unloading station is equipped with an unloading mechanism to deliver the packaged finished products.

[0009] as well as,

[0010] Multiple roller mills are respectively set at the tube threading station, the capping and screw-on station, the adhesive application station and the unloading station, to support the roll material or sleeve.

[0011] A stepping feeding mechanism, which connects multiple rollers in series, is used to stepwise convey rolls or sleeves between stations;

[0012] The conduit installation equipment includes:

[0013] The base used to support the roller mill;

[0014] The push-position trolley is slidably mounted on the base, located on one side of the roller mill, and is driven to move by the trolley drive mechanism. The push-position trolley is equipped with a cantilever bracket, and a first push plate is fixedly mounted at the end of the cantilever bracket. The size of the first push plate is smaller than the inner diameter of the sleeve.

[0015] A lifting mechanism is installed at the end of the roller mill at this station away from the push-position trolley. It includes a lifting head that can be raised and lowered. The lifting head is located between the support rollers of the roller mill. The lifting head is spaced apart from the end face of the roller mill at this station away from the push-position trolley. When the lifting head is at the lowest stroke position, the lifting head does not contact the roll material. When the lifting head is at the highest stroke position, the lifting head can lift the roll material upward.

[0016] The conveyor frame is slidably mounted on the base, located on the side away from the push-position trolley, and is driven to move by the frame drive mechanism;

[0017] The sleeve support roller assembly includes two rows of parallel second support rollers for supporting the sleeve;

[0018] The tube pushing mechanism includes a tube pushing slide and a second push plate. The tube pushing slide is slidably mounted on the conveyor frame and is driven to move by the tube pushing drive mechanism. The second push plate is mounted on the tube pushing slide and can abut against the sleeve on the sleeve support roller group.

[0019] Furthermore, the trolley drive mechanism includes a trolley drive motor, a trolley drive reducer, a trolley drive gear, and a trolley drive rack. The trolley drive rack is fixedly mounted on the base. The trolley drive motor and the trolley drive reducer are connected in transmission and fixedly mounted on the push-gear positioning trolley. The trolley drive gear is fixedly mounted on the output end of the trolley drive reducer and meshes with the trolley drive rack.

[0020] Furthermore, the lifting mechanism includes a servo electric cylinder, the lifting head is installed at the output end of the servo electric cylinder, the lifting head is slidably installed inside the support of the roller mill via a linear guide assembly, and a top wheel is rotatably provided at the highest point of the lifting head.

[0021] Furthermore, the frame drive mechanism includes a frame drive motor, a frame drive reducer, a frame drive gear, and a frame drive rack. The frame drive rack is fixedly mounted on the base. The frame drive motor and the frame drive reducer are connected in transmission and fixedly mounted on the conveyor frame. The frame drive gear is fixedly mounted on the output end of the frame drive reducer and meshes with the frame drive rack.

[0022] Furthermore, the two rows of second support rollers of the sleeve support roller group are installed by two rows of independent brackets and span across both sides of the conveyor frame. Space is left between and below the two rows of second support rollers for the movement of the tube pushing mechanism and the tube pushing drive mechanism. The second push plate extends upward from between the two rows of second support rollers.

[0023] Furthermore, the second push plate is cross-shaped.

[0024] Furthermore, the tube-pushing drive mechanism includes a tube-pushing drive motor, a tube-pushing drive reducer, a tube-pushing drive sprocket, and a tube-pushing drive chain. The two ends of the tube-pushing drive chain are respectively fixed on the tube-pushing slide, and the tube-pushing drive chain is wound around the tube-pushing drive sprocket. The tube-pushing drive sprocket is rotatably mounted on the conveyor frame. One of the tube-pushing drive sprockets is connected to the output end of the tube-pushing drive reducer, and the tube-pushing drive motor and the tube-pushing drive reducer are connected in a transmission connection.

[0025] Furthermore, a sleeve feeding mechanism is also provided. When the conveyor frame moves to its farthest end, the conveyor frame is located at the discharge port of the sleeve feeding mechanism. The sleeve feeding mechanism includes:

[0026] A material frame for storing sleeves includes at least a low baffle and a high baffle parallel to the axis of the sleeve, wherein the top of the low baffle is lower than the high baffle, and the top of the low baffle serves as a discharge port.

[0027] The lifting fabric belt has multiple lifting fabric belts, one end of which is fixed to the top of the high baffle, and the other end is wound to the discharge port. The lifting mechanism drives multiple lifting fabric belts to be wound or unwound simultaneously. The sleeve is placed in the material frame and is located above the multiple lifting fabric belts.

[0028] The upper baffle is vertically positioned directly opposite the discharge port, forming a first discharge channel with the lower baffle, which has an opening at the bottom. The space of the first discharge channel can only accommodate one sleeve.

[0029] The first material blocking mechanism is located at the lower end of the first discharge channel. It includes a first material blocking drive mechanism and a first material blocking component. The first material blocking component is driven by the first material blocking drive mechanism to reciprocate into or out of the first discharge channel, thereby blocking or allowing the sleeve to pass.

[0030] The feeding plate is inclined and positioned below the first discharge channel;

[0031] The lower baffle is positioned directly opposite the material feeding plate, forming an inclined second discharge channel with the material feeding plate. The upper end of the second discharge channel is connected to the first discharge channel.

[0032] The second material blocking mechanism is located at the lower end of the second discharge channel. It includes a second material blocking drive mechanism and a second material blocking component. The second material blocking component is driven by the second material blocking drive mechanism to reciprocate into or out of the second discharge channel, thereby blocking or allowing the sleeve to pass.

[0033] The side mounting plate blocks the front and rear sides of the first and second discharge channels and is used to install the upper and lower baffles.

[0034] Material sensors, located at the first and second discharge channels, are used to detect the presence of sleeves.

[0035] Furthermore, the upper baffle is provided with a first adjustment mechanism, which is capable of moving horizontally. The first adjustment mechanism includes:

[0036] Two first slides are installed at both ends of the upper baffle, and the first slides are horizontally slidably mounted on the side mounting plate;

[0037] The first synchronous shaft is rotatably mounted on two side mounting plates;

[0038] The first handwheel is fixedly installed at the end of the first synchronous shaft;

[0039] The first synchronous shaft and the first slide are connected by a gear and rack transmission.

[0040] The lower baffle is provided with a second adjustment mechanism, which is capable of moving along the inclined direction. The second adjustment mechanism includes:

[0041] Two second slides are installed at both ends of the lower baffle, and the second slides are slidably mounted on the side mounting plate.

[0042] The second synchronous shaft is rotatably mounted on two side mounting plates;

[0043] The second handwheel is fixedly installed at the end of the second synchronous shaft;

[0044] The second synchronous shaft and the second slide are connected by a gear and rack transmission.

[0045] Furthermore, the lifting mechanism includes a winding drive mechanism, a winding shaft, a winding reel, a first roller, and a second roller. The first roller is rotatably disposed above the lower baffle, and the second roller is rotatably disposed below the first roller and near the winding shaft. The winding shaft is driven to rotate by the winding drive mechanism, and multiple winding reels are mounted on the winding shaft. One end of the lifting fabric is fixed to the top of the high baffle, and after being wound sequentially from the first roller and the second roller, it is fixed to the winding reel.

[0046] Furthermore, the cap screw-on mechanism includes:

[0047] The first crossbeam is located above the roller mill at this station;

[0048] Two sets of first cross slide mechanisms are symmetrically arranged at both ends of the first crossbeam and can move in the horizontal and vertical directions, including a horizontal slide on the first crossbeam and a vertical slide on the horizontal slide.

[0049] Two three-axis manipulators are respectively mounted on the vertical slides of two sets of first cross slide mechanisms and move with them. The three-axis manipulators include three swing arms that are rotatably connected in sequence. Each swing arm is driven to rotate by a set of manipulator control motors. The end of the three-axis manipulator is equipped with a first clamping cylinder and a first gripper for gripping the cover plate through multiple first elastic sleeves.

[0050] Two lifting slides are installed on the sides of the vertical slides of the two sets of first cross slide mechanisms, and move with them, enabling them to lift vertically independently.

[0051] Two automatic screw-screw machines are installed on two lifting slides, respectively;

[0052] Two sets of cover plate feeding mechanisms are symmetrically arranged on both sides of the roller conveyor at this station for conveying cover plates;

[0053] The second crossbeam is arranged side by side with the first crossbeam and is located above the roller machine at this station. Two sets of first cross slide mechanisms are symmetrically arranged on the second crossbeam. Each set of first cross slide mechanisms has a lifting slide and an automatic screw machine installed on the side of the vertical slide.

[0054] Furthermore, the horizontal slide is slidably mounted on the first crossbeam via a linear guide assembly. The first crossbeam is also provided with a first rack. The horizontal slide is equipped with a first servo motor, a first reducer, and a first gear. The first servo motor and the first reducer are connected in a transmission manner. The first gear is installed at the output end of the first reducer, and the first gear meshes with the first rack.

[0055] Furthermore, the vertical slide is a rectangular frame slide, which is slidably mounted on the horizontal slide via a linear guide assembly. A second servo motor is installed on the vertical slide, and the second servo motor is connected to a lead screw assembly. The lead screw nut in the lead screw assembly is fixedly installed on the horizontal slide.

[0056] Furthermore, an L-shaped plate is provided below the vertical slide table. The horizontal part of the L-shaped plate extends out of the vertical slide table and is used to place the feeding device of the automatic screw machine. The vertical part of the L-shaped plate is used to install the lifting slide table.

[0057] Another aspect of the present invention provides a method of operating an automated sleeve packaging production line for roll packaging, comprising the following steps:

[0058] S1. Load the roll material onto the roller mill, and load the sleeve onto the sleeve support roller assembly;

[0059] S2. The push-position trolley moves the first push plate to abut against the left end face of the roll material;

[0060] S3. The lifting mechanism lifts the end of the coil material near the sleeve upwards, causing it to detach from the roller mill and form a suspended inlet section.

[0061] S4. The sleeve is moved by the conveyor frame to align the end of the sleeve with the end of the roll material and form a partial sleeve.

[0062] S5. The lifting mechanism descends and resets, and the coil falls onto the inner wall of the casing;

[0063] S6. The second push plate is driven by the tube pushing mechanism to abut against the end face of the sleeve and push the sleeve along the axial direction so that the sleeve gradually covers the entire roll material.

[0064] S7. The push-position trolley and conveyor frame are reset to complete the pipe threading process;

[0065] S8. The stepping feeding mechanism transports the sleeve that has been threaded to the capping and screwing station, installs cap plates at both ends of the sleeve, and screws multiple times at the ends of the sleeve to fix the cap plates and the sleeve.

[0066] S9. The stepping feeding mechanism transports the sleeve that has been capped and screwed to the adhesive application station and wraps tape around the screw positions at both ends of the sleeve.

[0067] S10, the stepping feeding mechanism transports the finished adhesive sleeve to the unloading station for unloading.

[0068] The beneficial effects of this invention are:

[0069] 1. This invention seamlessly connects the tube threading station, capping and screw-on station, adhesive application station, and unloading station through a stepping feeding mechanism, forming a highly integrated automated packaging production line. Each station operates in parallel at a unified pace, reducing intermediate buffers and manual intervention. This not only significantly improves overall production efficiency but also ensures the consistency and stability of packaging quality, achieving continuous, fully automated production from bulk rolls to finished product packaging.

[0070] 2. In the tube threading process of this invention, the push-positioning trolley first drives the first push plate to precisely abut against the left end of the roll material for axial positioning; then, the lifting mechanism lifts the end of the roll material closest to the sleeve upwards, causing it to detach from the roller support roller to form a suspended guide section, creating unobstructed space for sleeve insertion; subsequently, the tube pushing mechanism smoothly pushes the right end of the sleeve through the cross-shaped second push plate, allowing the sleeve to gradually cover the entire roll material. At the same time, the first push plate, because its size is smaller than the inner diameter of the sleeve, remains submerged inside the sleeve, neither interfering with the advancement nor causing the roll material to shift. This collaborative design uses a gear and rack drive to ensure positioning accuracy, and a servo electric cylinder in conjunction with the top wheel to achieve flexible lifting, effectively solving the problems of easy jamming, misalignment, and product damage in traditional tube threading, achieving stable and interference-free automatic tube threading.

[0071] 3. The capping and screwing mechanism of this invention adopts a double-beam, double-station design. The first beam station is equipped with a three-axis robot arm, responsible for gripping the cap plate, pressing the cap plates at both ends, and tightening some screws; the second beam station only carries an automatic screw machine, responsible for tightening the remaining screws. Both ends operate synchronously, and the two stations run in parallel, decoupling the cycle time bottleneck caused by the large number of screws required at a single station. This nearly doubles the end-sealing efficiency compared to the traditional single-station sequential operation mode. Simultaneously, the three-axis robot arm, in conjunction with the first elastic sleeve, enables flexible capping and unloading. The decoupling of the lifting slide and the main cross slide allows for more precise control of the capping depth and screwing pressure, flexibly adapting to cap plates and sleeves of different specifications.

[0072] 4. This invention integrates a dedicated sleeve feeding mechanism at the sleeve threading station. Multiple parallel flexible lifting belts replace rigid lifting components to support the sleeves, providing even support during unwinding and winding, preventing scratches on vulnerable surfaces such as large-diameter paper tubes. This mechanism uses a vertical first discharge channel that allows only one sleeve to pass at a time. Combined with a two-stage material blocking mechanism and sensor control, it achieves individual sleeve separation and pre-storage, preventing multiple sleeves from rolling down or getting stuck simultaneously. When the conveyor frame moves to its furthest point, its upper sleeve support roller group is positioned directly below the discharge port, automatically completing sleeve feeding without the need for additional robotic arms or manual intervention, providing a reliable guarantee for the efficient operation of the sleeve threading station. Attached Figure Description

[0073] Figure 1 This is a schematic diagram of an automated tubing packaging production line for roll packaging, as shown in the embodiment.

[0074] Figure 2 This is a top view of an automated sleeve packaging production line for roll packaging in one embodiment;

[0075] Figure 3 This is a schematic diagram of the pipe-insertion device in the embodiment;

[0076] Figure 4 This is a schematic diagram of the conveyor frame and the tube pushing mechanism in the embodiment;

[0077] Figure 5 for Figure 4 The left view;

[0078] Figure 6 This is a schematic diagram of the lifting mechanism in the embodiment;

[0079] Figure 7 This is a schematic diagram of the screw-on mechanism for sealing the cap in the embodiment;

[0080] Figure 8 This is a partial enlarged view of the first crossbeam and its load-bearing mechanism in the embodiment;

[0081] Figure 9 This is a left view of the casing feeding mechanism in the embodiment;

[0082] Figure 10 This is a schematic diagram of the structure of the lifting fabric belt and lifting mechanism in the embodiment;

[0083] Figure 11 This is a schematic diagram of the upper baffle and the first material blocking mechanism in the embodiment;

[0084] Figure 12 This is a schematic diagram of the structure of the lower baffle and the second material blocking mechanism in the embodiment.

[0085] In the picture:

[0086] 100. Roller mill;

[0087] 200. Stepping feeding mechanism;

[0088] 300. Pipe installation equipment;

[0089] 310. Push-position trolley; 311. Trolley drive mechanism; 312. Cantilever bracket; 313. First push plate;

[0090] 320. Lifting mechanism; 321. Lifting head; 322. Servo electric cylinder; 323. Lifting wheel;

[0091] 330. Conveyor frame; 331. Frame drive mechanism;

[0092] 340. Sleeve support roller assembly;

[0093] 350. Tube pushing mechanism; 351. Tube pushing slide; 352. Second push plate; 353. Tube pushing drive mechanism;

[0094] 400. Sealing and screwing mechanism;

[0095] 410. First crossbeam;

[0096] 420. First cross slide mechanism; 421. Horizontal slide; 422. Vertical slide;

[0097] 430. Three-axis robotic arm; 431. Swing arm; 432. Robotic arm control motor; 433. First gripping cylinder; 434. First gripper;

[0098] 440. Lifting slide;

[0099] 450. Automatic screw machine;

[0100] 460. Cover plate loading mechanism;

[0101] 470. Second crossbeam;

[0102] 480, L-shaped plate;

[0103] 500. Adhesive application mechanism;

[0104] 600. Casing feeding mechanism;

[0105] 601. Material sensor;

[0106] 610. Material frame; 611. Low baffle; 612. High baffle;

[0107] 620. Pull up the fabric belt;

[0108] 630. Upper baffle; 631. First adjusting mechanism; 632. First slide table; 633. First synchronous shaft; 634. First handwheel;

[0109] 640. First material blocking mechanism; 641. First material blocking component; 642. First material blocking drive mechanism;

[0110] 650. Cutting plate;

[0111] 660. Lower baffle; 661. Second adjusting mechanism; 662. Second slide; 663. Second synchronous shaft; 664. Second handwheel;

[0112] 670. Second stop mechanism; 671. Second stop component; 672. Second stop drive mechanism;

[0113] 680. Side mounting plate;

[0114] 690. Pulling mechanism; 691. Winding drive mechanism; 692. Winding shaft; 693. Winding reel; 694. First roller; 695. Second roller. Detailed Implementation

[0115] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0116] like Figure 1-2 As shown, an automated sleeve packaging production line for roll packaging includes components arranged sequentially along the material conveying direction:

[0117] The pipe threading station is equipped with a pipe threading device 300 for threading the roll material into the sleeve.

[0118] The capping and screwing station is equipped with a capping and screwing mechanism 400, which is used to install end caps and tighten screws at both ends of the sleeve that has been inserted into the roll material.

[0119] The adhesive application station is equipped with an adhesive application mechanism 500, which is used to apply tape to the screw holes of the sleeve.

[0120] The unloading station is equipped with an unloading mechanism to deliver the packaged finished products.

[0121] as well as,

[0122] Multiple roller mills 100 are respectively installed at the tube threading station, capping and screw-on station, adhesive application station, and unloading station to support the roll material or sleeve; each roller mill 100 includes a fixed support roller in the middle and movable support rollers on both sides, which can be moved as needed.

[0123] The stepping feeding mechanism 200 is connected in series with multiple rollers 100 for stepping conveying of rolls or sleeves between each station. The stepping feeding mechanism in this solution is provided in two sets, each set is installed on the side of a movable support roller and is provided with several V-shaped support blocks, which can be lifted and moved as a whole.

[0124] Among them, such as Figure 3-6 As shown, the conduit installation device 300 includes:

[0125] The base used to support the roller mill 100;

[0126] The push-positioning trolley 310 is slidably mounted on the base and located on one side of the roller mill 100. It is driven to move by the trolley drive mechanism 311. A cantilever bracket 312 is mounted on the push-positioning trolley 310. A first push plate 313 is fixedly mounted at the end of the cantilever bracket 312. The size of the first push plate 313 is smaller than the inner diameter of the sleeve.

[0127] The lifting mechanism 320 is installed at the end of the roller mill 100 at this station away from the push-position trolley 310. It includes a lifting head 321 that can be raised and lowered. The lifting head 321 is located between the support rollers of the roller mill 100. The lifting head 321 is spaced apart from the end face of the roller mill 100 at this station away from the push-position trolley 310. When the lifting head 321 is at the lowest stroke position, the lifting head 321 does not contact the roll material. When the lifting head 321 is at the highest stroke position, the lifting head 321 can lift the roll material upward.

[0128] The conveyor frame 330 is slidably mounted on the base, located on the side away from the push-position trolley 310, and is driven to move by the frame drive mechanism 331;

[0129] The sleeve support roller group 340 includes two rows of parallel second support rollers for supporting the sleeve;

[0130] The tube pushing mechanism 350 includes a tube pushing slide 351 and a second push plate 352. The tube pushing slide 351 is slidably mounted on the conveyor frame 330 and is driven to move by the tube pushing drive mechanism 353. The second push plate 352 is mounted on the tube pushing slide 351 and can abut against the sleeve on the sleeve support roller group 340.

[0131] In this scheme, the roll material to be packaged is placed on the roller mill 100 at the tube threading station, and is stably supported by the support rollers of the roller mill 100. At the same time, a large-diameter sleeve is fed onto the sleeve support roller group 340 of the tube threading equipment 300. This roller group consists of two rows of parallel second support rollers, which can stably support the sleeve and ensure that its axis is basically aligned with the axis of the roll material.

[0132] The trolley drive mechanism 311 starts working, driving the push-position trolley 310 to move towards the roll material on the base. The first push plate 313, installed at the end of the cantilever bracket 312, moves with the trolley until its end face makes smooth contact with the left end face of the roll material. By controlling the driving force of the trolley, the axial position of the roll material is accurately corrected and locked. During this process, the size of the first push plate 313 is designed to be smaller than the inner diameter of the sleeve, ensuring that it can be completely submerged in the sleeve during subsequent sleeve insertion without interfering with the advancement of the sleeve.

[0133] After the left end of the roll is positioned, the lifting mechanism 320 located below the right end of the roll begins to operate. The lifting head 321 rises smoothly between the two support rollers. Because the lifting head 321 has a predetermined distance from the right end face of the support roller, it can contact the bottom of the roll near the end face when it rises. When the lifting head 321 reaches its highest stroke position, the top roller 323 at its top lifts the right end of the roll upwards to a certain height, so that this end is completely separated from the support roller on the roller mill 100, forming a suspended, unobstructed inlet section.

[0134] As the right end of the roll is lifted, the frame drive mechanism 331 drives the conveyor frame 330 to move toward the roll, thereby causing the sleeve support roller group 340 and the sleeve as a whole to move horizontally. When the left end of the sleeve moves to the right end of the already lifted roll and forms a partial sleeve, the lifting head 321 of the lifting mechanism 320 then descends and resets, and the roll falls onto the inner wall of the sleeve.

[0135] The tube-pushing drive mechanism 353 (e.g., using chain drive for smooth driving with large stroke and high thrust) starts working, driving the tube-pushing slide 351 to move towards the roll material on the conveyor frame 330. The second push plate 352 (preferably a cross-shaped structure) mounted on the tube-pushing slide 351 moves accordingly and smoothly abuts against the right end face of the sleeve. As the tube-pushing slide 351 continues to move, the second push plate 352 applies a stable axial thrust to the sleeve, pushing it to slide smoothly on the two rows of second support rollers and the support rollers of the roller mill 100, gradually encasing the entire roll material from left to right. Throughout the tube-pushing process, the first push plate 313, because its size is smaller than the inner diameter of the sleeve, remains inside the sleeve and does not obstruct its advancement, continuously applying a slight thrust to the left end face of the roll material to prevent displacement until the roll material is completely inserted into the sleeve, completing the tube-insertion process.

[0136] After the tube is threaded, the push-position trolley 310 and the conveyor frame 330 are reset. At this point, a complete roll material + sleeve assembly is prepared. Subsequently, the stepping feeding mechanism 200, consisting of multiple roller mills 100 connected in series, starts and precisely moves the assembly to the capping and screwing station. At this station, the capping and screwing mechanism 400 simultaneously installs cover plates at both ends of the sleeve and tightens the screws; then the stepping feeding mechanism 200 moves it again to the adhesive application station to apply adhesive protection to the screw areas; finally, the finished product is sent out from the unloading station.

[0137] This solution seamlessly integrates multiple independent but related processes, such as tube insertion, capping and screwing, adhesive application, and material unloading, through a stepping feeding mechanism 200. This forms a highly integrated and fully automated packaging production line, which greatly improves overall production efficiency, reduces intermediate buffers and manual intervention, and ensures the consistency and stability of packaging quality.

[0138] In practical applications, the trolley drive mechanism 311 includes a trolley drive motor, a trolley drive reducer, a trolley drive gear, and a trolley drive rack. The trolley drive rack is fixedly mounted on the base. The trolley drive motor and the trolley drive reducer are connected in transmission and fixedly mounted on the push-gear positioning trolley 310. The trolley drive gear is fixedly mounted on the output end of the trolley drive reducer and meshes with the trolley drive rack.

[0139] In this design, the movement of the push-positioning trolley 310 is driven by a high-precision rack and pinion mechanism. The power output from the trolley drive motor is amplified by the trolley drive reducer and then transmitted to the trolley drive gear. Since the trolley drive rack is fixedly laid on the base and precisely meshes with the trolley drive gear, when the motor is running, the gear rolls along the rack, thereby driving the entire push-positioning trolley 310 to move linearly on the base.

[0140] In practical applications, the lifting mechanism 320 includes a servo electric cylinder 322, and the lifting head 321 is installed at the output end of the servo electric cylinder 322. The lifting head 321 is slidably installed inside the support of the roller mill 100 through a linear guide rail assembly, and a top wheel 323 is rotatably provided at the highest point of the lifting head 321.

[0141] When the lifting mechanism 320 is working, the servo electric cylinder 322 receives control commands and drives its output end to perform precise linear lifting and lowering movements, thereby driving the lifting head 321 to move up and down along the linear guide assembly. The lifting head 321 is located between two support rollers, and its top roller 323 contacts the bottom of the roll material during the lifting process. Using the servo electric cylinder 322 as the drive source, it has extremely high position control accuracy and speed adjustability, and can set the optimal lifting height according to the diameter and rigidity of different roll materials, ensuring unobstructed insertion of the sleeve and avoiding excessive bending damage to the roll material. The linear guide assembly provides precise guidance for the lifting head 321, ensuring that it can still lift and lower vertically without shaking or jamming when subjected to eccentric loads. The top roller 323 rotating at the highest point of the lifting head 321 transforms the sliding friction with the roll material during lifting into rolling friction, effectively protecting the surface of the roll material (especially vulnerable surfaces such as foam cotton) from being scratched or indented.

[0142] In practical applications, the frame drive mechanism 331 includes a frame drive motor, a frame drive reducer, a frame drive gear, and a frame drive rack. The frame drive rack is fixedly mounted on the base. The frame drive motor and the frame drive reducer are connected in transmission and fixedly mounted on the conveyor frame 330. The frame drive gear is fixedly mounted on the output end of the frame drive reducer and meshes with the frame drive rack.

[0143] The driving principle of the conveyor frame 330 is similar to that of the pusher positioning trolley 310, also employing a gear and rack transmission. The frame drive motor drives the gear to rotate via a reducer. The gear meshes with the rack fixed on the base, thereby driving the entire conveyor frame 330 (along with the sleeve support roller group 340, the tube pushing mechanism 350, etc.) to move linearly along the base. The conveyor frame 330 and its load are relatively large; the gear and rack transmission provides sufficient driving force and impact resistance, ensuring smooth movement. The high rigidity of the gear and rack ensures repeatability and positioning accuracy when the sleeve end and the roll end are aligned, preventing sleeve misalignment or jamming due to positional deviations. This driving method has a large stroke range, adaptable to sleeves and rolls of different lengths, and both ends can be set with limit switches, ensuring high safety.

[0144] In practical applications, the two rows of second support rollers of the sleeve support roller group 340 are installed by two rows of independent brackets and span across both sides of the conveyor frame 330. Space is left between and below the two rows of second support rollers for the push tube mechanism 350 and the push tube drive mechanism 353 to move. The second push plate 352 extends upward from between the two rows of second support rollers.

[0145] The sleeve support roller assembly 340 employs two rows of parallel second support rollers, which are mounted across the conveyor frame 330 via independent brackets. A through space is formed between and below the two rows of support rollers. The second push plate 352 of the tube pushing mechanism 350 is fixed to the tube pushing slide 351, and the tube pushing slide 351 and drive chain are arranged within this space. The second push plate 352 extends upward from the gap between the two rows of support rollers and is located behind the right end face of the sleeve. This three-dimensional and compact layout allows the tube pushing power mechanism to be concealed below the support structure, significantly reducing the lateral footprint of the equipment. The space below also facilitates the large-stroke reciprocating movement of the tube pushing slide 351, adapting to the pushing needs of sleeves of different lengths.

[0146] In practical applications, the second push plate 352 is cross-shaped.

[0147] The second push plate 352 is designed in a cross shape, that is, it has four symmetrical outwardly extending arms. When it contacts the end face of the casing, the four arms of the cross shape form multi-point support in the circumferential direction, avoiding the thrust eccentricity that may be caused by single-point contact, and ensuring that the thrust is always along the casing axis.

[0148] In practical applications, the tube pusher drive mechanism 353 includes a tube pusher drive motor, a tube pusher drive reducer, a tube pusher drive sprocket, and a tube pusher drive chain. The two ends of the tube pusher drive chain are respectively fixed on the tube pusher slide 351, and the tube pusher drive chain is wound around the tube pusher drive sprocket. The tube pusher drive sprocket is rotatably mounted on the conveyor frame 330. One of the tube pusher drive sprockets is connected to the output end of the tube pusher drive reducer, and the tube pusher drive motor and the tube pusher drive reducer are connected in a transmission connection.

[0149] The tube pusher drive mechanism 353 adopts a chain drive method. Both ends of the tube pusher drive chain are fixedly connected to the tube pusher slide 351, forming a closed loop, and revolving around two or more tube pusher drive sprockets rotatably mounted on the conveyor frame 330. One of the sprockets is the drive sprocket, connected to the output end of the tube pusher drive motor and the reducer. When the motor rotates, the reducer drives the drive sprocket to rotate, and the chain moves accordingly, thereby pulling the tube pusher slide 351 to perform linear reciprocating movement on the conveyor frame 330.

[0150] In practical applications, such as Figure 9-12 As shown, a sleeve feeding mechanism 600 is also provided. When the conveyor frame 330 moves to its farthest end, the conveyor frame 330 is located at the discharge port of the sleeve feeding mechanism 600. The sleeve feeding mechanism 600 includes:

[0151] The material frame 610 is used to store the sleeve and includes at least a low baffle 611 and a high baffle 612 parallel to the axis of the sleeve. The top of the low baffle 611 is lower than the high baffle 612, and the top of the low baffle 611 serves as the discharge port.

[0152] The lifting cloth belt 620 is provided in multiple ways. One end of the lifting cloth belt 620 is fixed to the top of the high baffle 612, and the other end is wound to the discharge port. The lifting mechanism 690 drives the multiple lifting cloth belts 620 to be wound or unwound at the same time. The sleeve is placed in the material frame 610 and is located above the multiple lifting cloth belts 620.

[0153] The upper baffle 630 is vertically positioned directly opposite the discharge port, forming a first discharge channel with the lower baffle 611 that has an opening at the bottom. The space of the first discharge channel can only accommodate one sleeve.

[0154] The first material blocking mechanism 640 is located at the lower end of the first discharge channel. It includes a first material blocking drive mechanism 642 and a first material blocking component 641. The first material blocking component 641 is driven by the first material blocking drive mechanism 642 to reciprocate into or out of the first discharge channel, thereby blocking or allowing the sleeve to pass.

[0155] The feeding plate 650 is inclined and set below the first discharge channel;

[0156] The lower baffle 660 is positioned opposite the feeding plate 650, forming an inclined second discharge channel with the feeding plate 650. The upper end of the second discharge channel is connected to the first discharge channel.

[0157] The second material blocking mechanism 670 is located at the lower end of the second discharge channel. It includes a second material blocking drive mechanism 672 and a second material blocking component 671. The second material blocking component 671 is driven by the second material blocking drive mechanism 672 to reciprocate into or out of the second discharge channel, thereby blocking or allowing the sleeve to pass.

[0158] The side mounting plate 680 blocks the front and rear sides of the first and second discharge channels and is used to install the upper baffle 630 and the lower baffle 660.

[0159] Material sensor 601, located at the first and second discharge channels, is used to detect whether there is a sleeve.

[0160] This solution integrates a dedicated sleeve feeding mechanism 600 into the sleeve threading station. When the conveyor frame 330 moves to its furthest point, the sleeve support roller group 340 on it is positioned directly below the discharge port of the sleeve feeding mechanism 600. The feeding mechanism separates the sleeves one by one, allowing them to fall precisely onto the two rows of second support rollers, completing the automatic feeding process.

[0161] The feeding mechanism works as follows: Initially, multiple stretching fabric belts 620 support stacked sleeves within the material frame 610. When the first discharge channel is short of material, the material sensor 601 sends a signal, and the lifting mechanism 690 simultaneously winds up the multiple stretching fabric belts 620, causing the sleeves to rise as a whole. After the uppermost sleeve passes over the top of the lower baffle 611, which serves as the discharge port, it rolls into the vertical first discharge channel formed by the lower baffle 611 and the upper baffle 630. This channel only allows a single sleeve to pass through. After the material sensor 601 detects that the sleeve has reached its position, the lifting mechanism 690 unwinds appropriately, causing the remaining sleeves to descend and preventing continuous compression of the discharge port. Subsequently, the first blocking mechanism 640 releases the sleeves, which fall into the inclined second discharge channel formed by the lower plate 650 and the lower baffle 660, and are intercepted by the second blocking mechanism 670, forming a pre-stored portion. When material needs to be unloaded, the second baffle mechanism 670 releases the material, and the sleeve slides out along the inclined channel onto the conveyor frame 330 below. This solution uses a flexible lifting belt 620 instead of a rigid lifting component, avoiding scratches on the sleeve surface; the two-stage baffle channel, combined with sensor control, enables the sleeve to be separated and ready for use one by one, preventing multiple sleeves from rolling down or getting stuck at the same time; the conveyor frame 330 automatically completes the loading when it moves to the farthest end, realizing the autonomous connection of materials inside the pipe-piercing station without the need for additional robotic arms or manual intervention, thus improving the degree of automation.

[0162] In practical applications, the upper baffle 630 is provided with a first adjustment mechanism 631, which can move horizontally. The first adjustment mechanism 631 includes:

[0163] Two first slides 632 are installed at both ends of the upper baffle 630, and the first slides 632 are horizontally slidably mounted on the side mounting plate 680.

[0164] The first synchronous shaft 633 is rotatably mounted on two side mounting plates 680;

[0165] The first handwheel 634 is fixedly installed at the end of the first synchronous shaft 633;

[0166] The first synchronous shaft 633 and the first slide 632 are connected by a gear and rack transmission.

[0167] The lower baffle 660 is provided with a second adjustment mechanism 661, which is capable of moving in the inclined direction. The second adjustment mechanism 661 includes:

[0168] Two second slides 662 are installed at both ends of the lower baffle 660, and the second slides 662 are slidably mounted on the side mounting plate 680.

[0169] The second synchronous shaft 663 is rotatably mounted on two side mounting plates 680;

[0170] The second handwheel 664 is fixedly installed at the end of the second synchronous shaft 663;

[0171] The second synchronous shaft 663 and the second slide 662 are connected by a gear and rack transmission.

[0172] This design includes manual synchronous adjustment mechanisms for the upper baffle 630 and the lower baffle 660. The first adjustment mechanism 631: The operator rotates the first handwheel 634, causing the first synchronous shaft 633 to rotate. The two gears at both ends rotate synchronously, driving the two meshing racks to move horizontally. This causes the two first slides 632 at both ends of the upper baffle 630 to slide horizontally synchronously along the side mounting plate 680, changing the width of the first discharge channel between the upper baffle 630 and the lower baffle 611. The slides are in close contact with the back of the racks, eliminating transmission backlash. The second adjustment mechanism 661 works similarly: rotating the second handwheel 664 drives the two second slides 662 to slide synchronously in the inclined direction via the second synchronous shaft 663, gears, and racks, changing the inclination gap of the second discharge channel between the lower baffle 660 and the discharge plate 650. The upper baffle 630 can be adjusted horizontally to precisely change the width of the first discharge channel, ensuring that it can always accommodate only a single sleeve of the current specification, adapting to sleeves of different diameters; the lower baffle 660 can be adjusted tilting to change the gap of the second discharge channel, ensuring that sleeves of any diameter can slide smoothly down by their own weight without jumping or obstruction; the use of a synchronous shaft and gear rack transmission structure ensures complete synchronization of the adjustments at both ends, making the channel width consistent throughout its entire length and avoiding channel distortion and deformation caused by asynchronous adjustments at both ends.

[0173] In practical applications, the lifting mechanism 690 includes a winding drive mechanism 691, a winding shaft 692, a winding reel 693, a first roller 694, and a second roller 695. The first roller 694 is rotatably disposed on the upper end of the low baffle 611, and the second roller 695 is rotatably disposed below the first roller 694 and near the winding shaft 692. The winding shaft 692 is driven to rotate by the winding drive mechanism 691. Multiple winding reels 693 are mounted on the winding shaft 692. One end of the lifting fabric belt 620 is fixed to the top of the high baffle 612, and is wound sequentially from the first roller 694 and the second roller 695 and then fixed to the winding reel 693.

[0174] When the lifting mechanism 690 is working, the winding drive mechanism 691, using a motor and reducer, drives the winding shaft 692 to rotate. Multiple winding reels 693 mounted side-by-side on the winding shaft 692 rotate synchronously, winding or unwinding the lifting fabric belt 620. The path of each lifting fabric belt 620 is as follows: one end is fixed to the top of the high baffle 612, extending downwards to the first roller 694 at the upper end of the low baffle 611 for support and steering, then winding downwards to the second roller 695 for another steering, and finally winding and fixing onto the winding reel 693. During winding, the fabric belt is tightened, lifting the entire sleeve inside the material frame 610 upwards; during unwinding, the fabric belt loosens, and the sleeve descends smoothly under gravity. This solution employs multiple parallel fabric strips to provide uniform support for the long sleeve, avoiding deformation caused by single-point stress. The guiding layout of the first roller 694 and the second roller 695 ensures that the fabric strips remain smooth, without deviation or overlap during winding and unwinding. The winding drive mechanism 691 synchronously drives all winding reels 693, ensuring that the winding and unwinding speeds and lengths of the multiple fabric strips are completely consistent, ensuring that the sleeve remains horizontal and does not tilt when rising or falling. This flexible lifting method completely avoids the damage that rigid pushing or chain conveying may cause to the sleeve surface, making it particularly suitable for easily damaged sleeves such as large-diameter paper tubes.

[0175] In this solution, there are two sleeve feeding mechanisms 600 on both sides of the pipe threading device 300, which can hold two different specifications of sleeves and can be flexibly selected according to needs.

[0176] In practical applications, such as Figure 7-8 As shown, the cap screw-on mechanism 400 includes:

[0177] The first crossbeam 410 is located above the roller mill 100 at this station;

[0178] Two sets of first cross slide mechanisms 420 are symmetrically arranged at both ends of the first crossbeam 410 and can move in the horizontal and vertical directions, including a horizontal slide 421 arranged on the first crossbeam 410 and a vertical slide 422 arranged on the horizontal slide 421.

[0179] Two three-axis manipulators 430 are respectively mounted on the vertical slides 422 of two sets of first cross slide mechanisms 420 and move with them. Each three-axis manipulator 430 includes three swing arms 431 that are rotatably connected in sequence. Each swing arm 431 is driven to rotate by a set of manipulator control motors 432. The end of the three-axis manipulator 430 is equipped with a first clamping cylinder 433 and a first gripper for gripping the cover plate through multiple first elastic sleeves.

[0180] Two lifting slides 440 are respectively installed on the side of the vertical slides 422 of the two sets of first cross slide mechanisms 420, and move with them, and can be lifted vertically independently.

[0181] Two automatic screw machines 450 are installed on two lifting slides 440 respectively;

[0182] Two sets of cover plate feeding mechanisms 460 are symmetrically arranged on both sides of the roller conveyor 100 at this station for conveying cover plates;

[0183] The second crossbeam 470 and the first crossbeam 410 are arranged side by side and located above the roller mill 100 at this station. Two sets of first cross slide mechanisms 420 are symmetrically arranged on the second crossbeam 470. Each set of first cross slide mechanisms 420 has a lifting slide 440 and an automatic screw machine 450 installed on the side of the vertical slide 422.

[0184] The capping and screwing mechanism 400 adopts a dual-station design. The first station (at the first crossbeam 410) is responsible for capping and partially screwing in the screws, while the second station (at the second crossbeam 470) is responsible for securing the remaining screws.

[0185] The first workstation's workflow is as follows: The pierced sleeve is fed by the stepping feeding mechanism 200 to the roller conveyor 100 below the first crossbeam 410. The cover plate feeding mechanisms 460 on both sides transport the cover plates to the picking position. The first cross slide mechanisms 420 (horizontal slide 421 + vertical slide 422) at both ends of the first crossbeam 410 respectively drive the three-axis robot arm 430 to move to the picking position. The three swing arms 431 of the three-axis robot arm 430 are linked under the drive of their respective motors, causing the first gripper and the first clamping cylinder 433 at the end to grasp the cover plate in any posture. The first elastic sleeve provides flexible cushioning. Subsequently, the robot arm moves the cover plate to the end of the sleeve and, in conjunction with the precise movement of the cross slide, smoothly presses the cover plate into the sleeve. After pressing, the lifting slide 440 installed on the side of the vertical slide 422 descends independently, driving the automatic screw machine 450 to descend to the end face of the sleeve and lock in the first screw. The roller machine rotates 100 to a certain angle and then locks in the next screw, thus completing the installation of multiple screws.

[0186] The second workstation's workflow is as follows: The stepping feeding mechanism 200 moves the sleeve from below the first crossbeam 410 to the roller conveyor 100 below the second crossbeam 470. The two sets of first cross slide mechanisms 420 on the second crossbeam 470 (without the three-axis robot 430, resulting in a lighter structure) only carry the lifting slide 440 and the automatic screwdriver 450. The cross slide precisely aligns the automatic screwdriver 450 with the hole to be screwed, and the lifting slide 440 independently presses down to lock the screw, completing the remaining screw operation. The two workstations operate in parallel.

[0187] This solution simultaneously seals and screws at both ends, completing all end operations in a single clamping operation, doubling efficiency. The three-axis robot 430 has high degrees of freedom, flexibly adapting to different material handling positions and sealing postures, offering excellent flexibility. The first elastic sleeve provides flexible clamping, preventing damage to the cover surface. The lifting slide 440's vertical movement is independent of the main cross slide, decoupling the sealing and screwing strokes, resulting in more precise pressure and depth control. The double-beam step-by-step screwing design decouples the sealing from partial and remaining screwing processes, avoiding cycle time bottlenecks caused by a large number of screws at a single workstation, significantly improving the overall production line efficiency.

[0188] In practical applications, the horizontal slide 421 is slidably mounted on the first crossbeam 410 via a linear guide assembly. The first crossbeam 410 is also provided with a first rack. The horizontal slide 421 is equipped with a first servo motor, a first reducer, and a first gear. The first servo motor and the first reducer are connected in a transmission manner. The first gear is installed at the output end of the first reducer, and the first gear meshes with the first rack.

[0189] In this scheme, the first servo motor drives the first gear to rotate after passing through the reducer. The first gear meshes with the first rack fixed on the first crossbeam 410, thereby driving the horizontal slide table 421 to perform high-precision linear motion along the first crossbeam 410 through the linear guide assembly.

[0190] In practical applications, the vertical slide 422 is a rectangular frame slide, which is slidably mounted on the horizontal slide 421 via a linear guide assembly. A second servo motor is installed on the vertical slide 422, and the second servo motor is connected to a lead screw assembly. The lead screw nut in the lead screw assembly is fixedly installed on the horizontal slide 421.

[0191] The vertical slide 422 adopts a rectangular frame structure and is mounted on the horizontal slide 421 via a linear guide assembly. A second servo motor drives the lead screw assembly to rotate. Since the lead screw nut is fixed to the horizontal slide 421 and does not rotate, the rotational motion of the lead screw is converted into the up-and-down linear motion of the vertical slide 422. The rectangular frame slide has extremely high torsional rigidity and high load-bearing capacity, enabling it to stably support off-center load components such as the three-axis robot 430 and automatic screwdriver 450 without deformation or vibration. The lead screw drive has high positioning accuracy and repeatability, ensuring precise control of the cover plate pressing depth and alignment of the screwdriver with the small hole during screw driving.

[0192] In practical applications, an L-shaped plate 480 is provided below the vertical slide table 422. The horizontal part of the L-shaped plate 480 extends out of the vertical slide table 422 and is used to place the feeding device of the automatic screw machine 450. The vertical part of the L-shaped plate 480 is used to install the lifting slide table 440.

[0193] The L-shaped plate 480 is fixed to the bottom of the vertical slide table 422. Its vertical part serves as the mounting base for the lifting slide table 440, allowing the lifting slide table 440 to be attached to the side of the vertical slide table 422 and to move up and down together with it. Its horizontal part extends outward to form a compact support platform, specifically designed to house the pneumatic feeding device required by the automatic screw machine 450. The L-shaped plate 480 achieves an integrated layout of functional components, saving lateral space and making the whole machine more compact. The feeding device and the automatic screw machine 450 move synchronously with the vertical slide table 422, and their relative positions remain constant, avoiding the pulling of the feeding pipe due to the lifting of the slide table and preventing pipe entanglement or poor feeding. The feeding path is minimized, the screw delivery response is faster, and the reliability of screw driving is improved.

[0194] Another aspect of the present invention provides a method of operating an automated sleeve packaging production line for roll packaging, comprising the following steps:

[0195] S1. Feed the roll material onto the roller mill 100, and feed the sleeve onto the sleeve support roller group 340;

[0196] S2, the push-position trolley 310 drives the first push plate 313 to move to abut against the left end face of the roll material;

[0197] S3, the lifting mechanism 320 lifts the end of the coil material near the sleeve upwards, causing it to separate from the roller mill 100 and form a suspended inlet section;

[0198] S4. The sleeve is moved by the conveyor frame 330 so that the end of the sleeve and the end of the roll material are aligned and partially sleeved.

[0199] S5, the lifting mechanism descends and resets at 320°, and the coil falls onto the inner wall of the casing;

[0200] S6. The second push plate 352 is driven by the push tube mechanism 350 to abut against the end face of the sleeve and push the sleeve along the axial direction so that the sleeve gradually covers the entire roll material.

[0201] S7. The push-position trolley 310 and the conveyor frame 330 are reset, completing the pipe threading;

[0202] S8, the stepping feeding mechanism 200 transports the sleeve that has been threaded to the capping and screwing station, installs cover plates at both ends of the sleeve, and screws multiple times at the ends of the sleeve to fix the cover plates and the sleeve.

[0203] S9, the stepping feeding mechanism 200 transports the sleeve that has been capped and screwed to the adhesive application station, and wraps tape around the screw positions at both ends of the sleeve.

[0204] S10, the stepping feeding mechanism 200 transports the finished adhesive sleeve to the unloading station for unloading.

[0205] This working method connects each workstation in series through a stepping feeding mechanism 200 to form an assembly line. Each workstation completes its specific task within a specific cycle time. The entire line operates in a coordinated manner, realizing fully automated production of roll packaging from bulk raw materials to finished products. This greatly improves production efficiency, stabilizes product quality, and reduces labor costs.

[0206] In summary, this invention seamlessly integrates the tube insertion, capping and screwing, adhesive application and unloading stations through the stepping feeding mechanism 200. Combined with the non-interference design of the push-positioning and lifting coordination of the tube insertion station, the parallel structure of the capping and screwing dual stations, and the flexible tube-by-tube automatic feeding mechanism, it achieves fully automated, efficient and stable production of roll tube packaging, significantly improving production efficiency and packaging quality.

[0207] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments are merely illustrative of the technical concept and characteristics of the present invention, intended to enable those skilled in the art to understand and implement the invention, and should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automated sleeve packaging production line for roll packaging, characterized in that: Including those arranged sequentially along the material conveying direction: The pipe threading station is equipped with pipe threading equipment (300) for threading the roll material into the sleeve; The capping and screwing station is equipped with a capping and screwing mechanism (400) for installing end caps and tightening screws at both ends of the sleeve that has been inserted into the roll material. The adhesive application station is equipped with an adhesive application mechanism (500) for applying tape to the screw holes of the sleeve. The unloading station is equipped with an unloading mechanism to deliver the packaged finished products. as well as, Multiple roller mills (100) are respectively set at the pipe threading station, the capping and screwing station, the adhesive application station and the unloading station, for supporting the roll material or sleeve; A step-feeding mechanism (200), which connects multiple rollers (100) in series, is used to step-feed rolls or sleeves between stations. The conduit installation equipment (300) includes: Base for supporting the roller mill (100); The push-position trolley (310) is slidably mounted on the base and located on one side of the roller mill (100). It is driven to move by the trolley drive mechanism (311). A cantilever bracket (312) is installed on the push-position trolley (310). A first push plate (313) is fixedly installed at the end of the cantilever bracket (312). The size of the first push plate (313) is smaller than the inner diameter of the sleeve. A lifting mechanism (320) is installed at the end of the roller mill (100) at this station away from the push-position trolley (310). It includes a lifting head (321) that can be raised and lowered. The lifting head (321) is located between the support rollers of the roller mill (100). The lifting head (321) is spaced from the end face of the roller mill (100) at this station away from the push-position trolley (310). When the lifting head (321) is at the lowest stroke position, the lifting head (321) does not contact the roll material. When the lifting head (321) is at the highest stroke position, the lifting head (321) can lift the roll material upward. The conveyor frame (330) is slidably mounted on the base and located on the side away from the push-position trolley (310), and is driven to move by the frame drive mechanism (331); The sleeve support roller assembly (340) includes two rows of parallel second support rollers for supporting the sleeve; The tube pushing mechanism (350) includes a tube pushing slide (351) and a second push plate (352). The tube pushing slide (351) is slidably mounted on the conveyor frame (330) and is driven to move by the tube pushing drive mechanism (353). The second push plate (352) is mounted on the tube pushing slide (351) and can abut against the sleeve on the sleeve support roller group (340).

2. The automated sleeve packaging production line for roll packaging according to claim 1, characterized in that: The lifting mechanism (320) includes a servo electric cylinder (322), and the lifting head (321) is installed at the output end of the servo electric cylinder (322). The lifting head (321) is slidably installed on the inner side of the support of the roller mill (100) through a linear guide rail assembly. The highest point of the lifting head (321) is rotatably provided with a top wheel (323).

3. The automated sleeve packaging production line for roll packaging according to claim 1, characterized in that: The two rows of second support rollers of the sleeve support roller group (340) are installed by two rows of independent brackets and span across both sides of the conveyor frame (330). There is space between and below the two rows of second support rollers for the push tube mechanism (350) and the push tube drive mechanism (353) to move. The second push plate (352) extends upward from between the two rows of second support rollers.

4. An automated sleeve packaging production line for roll packaging according to claim 1, characterized in that: The tube pusher drive mechanism (353) includes a tube pusher drive motor, a tube pusher drive reducer, a tube pusher drive sprocket, and a tube pusher drive chain. The two ends of the tube pusher drive chain are respectively fixed on the tube pusher slide (351), and the tube pusher drive chain is wound around the tube pusher drive sprocket. The tube pusher drive sprocket is rotatably mounted on the conveyor frame (330). One of the tube pusher drive sprockets is connected to the output end of the tube pusher drive reducer, and the tube pusher drive motor and the tube pusher drive reducer are connected in a transmission connection.

5. An automated sleeve packaging production line for roll packaging according to claim 1, characterized in that: A sleeve feeding mechanism (600) is also provided. When the conveyor frame (330) moves to its farthest end, the conveyor frame (330) is located at the discharge port of the sleeve feeding mechanism (600). The sleeve feeding mechanism (600) includes: The material frame (610) is used to store the sleeve and includes at least a low baffle (611) and a high baffle (612) parallel to the axis of the sleeve. The top of the low baffle (611) is lower than the high baffle (612), and the top of the low baffle (611) serves as the discharge port. The lifting fabric belt (620) is provided in multiple pieces, one end of which is fixed to the top of the high baffle (612), and the other end is wound to the discharge port. The lifting mechanism (690) drives the multiple lifting fabric belts (620) to be wound or unwound simultaneously. The sleeve is placed in the material frame (610) and is located above the multiple lifting fabric belts (620). The upper baffle (630) is vertically positioned opposite the discharge port, forming a first discharge channel with the lower baffle (611) that has an opening at the lower end. The space of the first discharge channel can only accommodate one sleeve. The first material blocking mechanism (640) is located at the lower end of the first discharge channel and includes a first material blocking drive mechanism (642) and a first material blocking component (641). The first material blocking component (641) is driven by the first material blocking drive mechanism (642) to reciprocate into or out of the first discharge channel, thereby blocking or releasing the sleeve. The feeding plate (650) is inclined and positioned below the first discharge channel; The lower baffle (660) is positioned opposite the feeding plate (650) and forms an inclined second discharge channel with the feeding plate (650). The upper end of the second discharge channel is connected to the first discharge channel. The second material blocking mechanism (670) is located at the lower end of the second discharge channel. It includes a second material blocking drive mechanism (672) and a second material blocking component (671). The second material blocking component (671) is driven by the second material blocking drive mechanism (672) to reciprocate into or out of the second discharge channel, thereby blocking or releasing the sleeve. The side mounting plate (680) blocks the front and rear sides of the first and second discharge channels and is used to install the upper baffle (630) and the lower baffle (660). A material sensor (601) is located at the first discharge channel and the second discharge channel to detect whether there is a sleeve.

6. An automated sleeve packaging production line for roll packaging according to claim 5, characterized in that: The upper baffle (630) is provided with a first adjustment mechanism (631) that can move horizontally. The first adjustment mechanism (631) includes: Two first slides (632) are installed at both ends of the upper baffle (630), and the first slides (632) are horizontally slidably mounted on the side mounting plate (680); The first synchronous shaft (633) is rotatably mounted on two side mounting plates (680); The first handwheel (634) is fixedly installed at the end of the first synchronous shaft (633); The first synchronous shaft (633) and the first slide (632) are connected by a gear and rack transmission; The lower baffle (660) is provided with a second adjusting mechanism (661) that can move in the inclined direction. The second adjusting mechanism (661) includes: Two second slides (662) are installed at both ends of the lower baffle (660), and the second slides (662) are slidably mounted on the side mounting plate (680); The second synchronous shaft (663) is rotatably mounted on two side mounting plates (680); The second handwheel (664) is fixedly installed at the end of the second synchronous shaft (663); The second synchronous shaft (663) and the second slide (662) are connected by a gear and rack transmission.

7. An automated sleeve packaging production line for roll packaging according to claim 5, characterized in that: The lifting mechanism (690) includes a winding drive mechanism (691), a winding shaft (692), a winding reel (693), a first roller (694), and a second roller (695). The first roller (694) is rotatably disposed on the upper end of the low baffle (611), and the second roller (695) is rotatably disposed below the first roller (694) and located near the winding shaft (692). The winding shaft (692) is driven to rotate by the winding drive mechanism (691). Multiple winding reels (693) are installed on the winding shaft (692). One end of the lifting fabric (620) is fixed to the top of the high baffle (612), and after being wound sequentially from the first roller (694) and the second roller (695), it is fixed to the winding reel (693).

8. An automated sleeve packaging production line for roll packaging according to claim 1, characterized in that: The cap screw-on mechanism (400) includes: The first crossbeam (410) is located above the roller mill (100) at this station; Two sets of first cross slide mechanisms (420) are symmetrically arranged at both ends of the first crossbeam (410) and can move in the horizontal and vertical directions, including a horizontal slide (421) arranged on the first crossbeam (410) and a vertical slide (422) arranged on the horizontal slide (421). Two three-axis manipulators (430) are respectively mounted on the vertical slides (422) of two sets of first cross slide mechanisms (420) and move with them. The three-axis manipulators (430) include three swing arms (431) that are rotatably connected in sequence. Each swing arm (431) is driven to rotate by a set of manipulator control motors (432). The end of the three-axis manipulators (430) is equipped with a first clamping cylinder (433) and a first gripper for gripping the cover plate through multiple first elastic sleeves. Two lifting slides (440) are respectively installed on the side of the vertical slides (422) of the two sets of first cross slide mechanisms (420), and move with them, and can be lifted vertically independently; Two automatic screw-making machines (450) are respectively installed on two lifting slides (440); Two sets of cover plate feeding mechanisms (460) are symmetrically arranged on both sides of the roller conveyor (100) at this station for conveying cover plates; The second crossbeam (470) and the first crossbeam (410) are arranged side by side and located above the roller machine (100) at this station. Two sets of first cross slide mechanisms (420) are symmetrically arranged on the second crossbeam (470). Each set of first cross slide mechanisms (420) has a lifting slide (440) and an automatic screw machine (450) installed on the side of the vertical slide (422) of each set of first cross slide mechanisms (420).

9. An automated sleeve packaging production line for roll packaging according to claim 8, characterized in that: An L-shaped plate (480) is provided below the vertical slide (422). The horizontal part of the L-shaped plate (480) extends out of the vertical slide (422) and is used to place the feeding device of the automatic screw machine (450). The vertical part of the L-shaped plate (480) is used to install the lifting slide (440).

10. The working method of an automated sleeve packaging production line for roll packaging according to claim 1, characterized in that: Includes the following steps: S1. Load the roll material onto the roller mill (100) and load the sleeve onto the sleeve support roller group (340); S2, the push-position trolley (310) drives the first push plate (313) to move to abut against the left end face of the roll material; S3, the lifting mechanism (320) lifts the end of the roll material near the sleeve upward, so that it is separated from the roller mill (100) and forms a suspended inlet section; S4. The sleeve is moved by the conveyor frame (330) so that the end of the sleeve and the end of the roll are aligned and partially sleeved. S5, the lifting mechanism (320) descends and resets, and the coil falls onto the inner wall of the casing; S6. The second push plate (352) is driven by the push tube mechanism (350) to abut against the end face of the sleeve and push the sleeve along the axial direction so that the sleeve gradually covers the entire roll material. S7. The push-position trolley (310) and the conveyor frame (330) are reset to complete the pipe threading; S8, the stepping feeding mechanism (200) transports the sleeve that has been threaded to the capping and screwing station, installs the caps at both ends of the sleeve, and screws multiple screws at the ends of the sleeve to fix the caps and the sleeve. S9, The stepping feeding mechanism (200) transports the sleeve that has been capped and screwed to the adhesive application station and wraps tape around the screw positions at both ends of the sleeve. S10, the stepping feeding mechanism (200) transports the finished adhesive sleeve to the unloading station for unloading.

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