A feeding device and a feeding method for packaging carton production and processing

Abstract

The application discloses a feeding device and method for packaging carton production and processing, and relates to the technical field of packaging feeding mechanical arms. The feeding device comprises a mechanical arm for feeding and conveying a carton packaging machine. Through the cooperative linkage of the turnover assembly, the lifting assembly, the center positioning assembly, the pressure supply assembly, the transmission assembly and the adjusting assembly, the technical defects of poor positioning accuracy, easy extrusion deformation of the carton, easy scattering during turnover, feeding jam and the inability to adapt to the stack height self-adaptive pressure regulation of the traditional carton feeding equipment are solved. Through transmission, continuous feeding of the packaging paper is realized, the stack height is reduced, the lateral extrusion force of the two sides of the center positioning is automatically reduced, the equipment has enough positioning clamping force to ensure the regularity in the full stack state, and the pressure is automatically released in the less material state, so that the paperboard is prevented from being extruded, wrinkled, deformed or torn, the lateral friction resistance of the paperboard is reduced, and continuous and stable single feeding, smooth feeding and no jam are ensured.

Description

Technical Field

[0001] This invention relates to the field of packaging feeding robotic arms, specifically to a feeding device and feeding method for packaging paper box production and processing. Background Technology

[0002] Packaging cartons are widely used in food, daily necessities, express delivery, and other fields. In the automated production process of cartons, the feeding device is a key piece of equipment connecting the stacking of cardboard with subsequent processing steps such as printing, die-cutting, and gluing. Its operational stability and feeding accuracy directly determine the processing efficiency and finished product quality of the entire production line. Currently, the industry commonly uses a flip-up mechanical support arm structure to complete the cardboard feeding operation. First, the stacked packaging cardboard is placed on the support structure, then the mechanical arm flips and connects to the conveyor line. With the help of positioning components, the cardboard is aligned in the center, and finally, the drive mechanism pushes the cardboard to the conveyor belt to achieve continuous feeding.

[0003] While existing flip-over mechanical support arms can perform basic actions such as cardboard loading, flipping, and centering, they still have significant shortcomings in actual production. Traditional devices often use a constant clamping force design for their centering components. During operation, they rely on positioning plates on both sides to laterally limit and center the cardboard stack. When the cardboard stack on the support plate is high and there are many stacks, the cardboard pieces abut against each other to form an overall support structure. The constant clamping force can ensure that the entire stack of cardboard is centered and neat, preventing displacement or tipping during flipping and transfer. However, as the cardboard is continuously conveyed and the stack height decreases, the number of cardboard stacks decreases, and the interlayer support gradually disappears. The remaining cardboard can no longer distribute the lateral pressure. If the positioning components maintain the original clamping force, it is very easy to cause the cardboard edges to be squeezed, wrinkled, deformed, or even torn, which seriously affects the appearance quality of the cardboard box and the accuracy of subsequent processing. Therefore, we propose a feeding device and feeding method for packaging cardboard box production and processing. Summary of the Invention

[0004] The purpose of this invention is to provide a feeding device and feeding method for the production and processing of packaging paper boxes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for the production and processing of paper boxes, comprising a robotic arm for feeding and conveying materials to a paper box packaging machine, the robotic arm including a lateral positioning frame, a feeding plate and a bearing plate being disposed on the lateral positioning frame, the feeding plate being fixed on the lateral positioning frame, the paper box packaging machine including a packaging machine body and a feeding frame disposed on one side of the packaging machine body, the feeding frame being provided with multiple sets of conveyor belts, and further comprising: A flipping component is installed between the robotic arm and the feeding rack to flip the robotic arm to different angles for loading and feeding at different positions. The feeding plate is equipped with a feeding component for driving the feeding after flipping. The lifting assembly is located between the support plate and the side positioning frame. It is used to lift the support plate after the packaging paper is fed, so that the packaged paper is pressed between the feeding plate and the support plate. In addition, a centering positioning component is provided on the support plate for centering the packaging paper during the feeding process. The support plate is provided with an adjustment component for adjusting and controlling the centering pressure of the packaging paper during the centering positioning process. The support plate is provided with a pressure supply component for supplying pressure to the stacked packaging paper during the feeding process after flipping. A transmission component is provided between the pressure supply component and the adjustment component for assisting in the transmission of the adjustment component. Under the interaction of the feeding drive component, the flipping component, the adjustment component, the pressure supply component and the transmission component, when the robotic arm flips and feeds, as the height of the packaging paper stack decreases, the pressure for centering the packaging paper is reduced synchronously.

[0006] Preferably, the centering positioning component includes side plates disposed on both sides of the support plate, and two sets of T-shaped rods are slidably connected on the side plates in a symmetrical state. One end of each T-shaped rod is fixed to one side of the support plate. The opposite sides of the two sets of side plates are connected to a centering positioning plate through an elastic component. The centering positioning plate is provided with an inclined surface for abutting against the side of the pushed-in packaging paper. The elastic component includes multiple sets of sleeves fixed to the central positioning plate, with a sliding rod slidably connected to each sleeve. One end of the sliding rod is fixed to a side plate, and a spring is sleeved on the outside of each sleeve.

[0007] Preferably, the adjustment assembly includes a mounting bracket fixed to the upper end of the support plate, a double-threaded tube rotatably connected to the mounting bracket, and the threads at both ends of the double-threaded tube are arranged in opposite directions. The two ends of the double-threaded tube are threadedly connected to threaded rods, and one end of each of the two sets of threaded rods is fixed to two sets of side plates respectively.

[0008] Preferably, the pressure supply component includes a pressure plate disposed between the support plate and the feed plate. When the robotic arm rotates away from the feed rack under the action of the flipping component, the pressure plate abuts against the support plate under the action of gravity. At this time, the pressure plate and the support plate support and lift the packaging paper after it has been stacked. After the feeding is completed, when the robotic arm moves towards the feed rack under the action of the flipping component, the pressure plate is at the top of the packaging paper and maintains abutment and compression against the stacked packaging paper under the action of gravity. Two sets of mounting blocks are fixed symmetrically on one side of the pressure plate. Mounting rods are slidably connected to the two sets of mounting blocks. The mounting rods are fixed to the lateral positioning frame. The opposite side of the pressure plate and the feed plate is rotatably connected to ball bearings for abutting and compressing against the packaging paper through multiple sets of spherical grooves.

[0009] Preferably, the transmission assembly is arranged in two sets symmetrically between the pressure plate and the double-ended threaded tube. The transmission assembly includes a winding wheel fixed on the double-ended threaded tube, a pull rope wound on the winding wheel, a through hole on the bearing plate, one end of the pull rope passing through the through hole and fixed to the pressure plate, and a reset assembly for assisting the reset after transmission is provided between the mounting bracket and the double-ended threaded tube.

[0010] Preferably, the reset assembly includes a retaining ring fixed to a double-ended threaded tube, and a torsion spring is sleeved on the outer side of the double-ended threaded tube, with both ends of the torsion spring connected to the retaining ring and the mounting bracket, respectively.

[0011] Preferably, the lifting assembly includes a lifting plate fixed to one side of the bearing plate, two sets of fixing plates fixed on the lateral positioning frame, the lifting plate being located between the two sets of fixing plates, a threaded sleeve fixed on the lifting plate, a lead screw threadedly connected to the threaded sleeve, the lead screw being rotatably connected between the two sets of fixing plates, a motor for driving the lead screw being mounted on the fixing plate, and two sets of guide rods slidably connected on the lifting plate in a symmetrical state, the guide rods being fixed between the two sets of fixing plates.

[0012] Preferably, the flipping assembly includes a fixed frame fixed to both sides of the feed rack, a connecting plate fixed on the lateral positioning frame, a mounting shaft fixed on the connecting plate, the mounting shaft being rotatably connected between the two sets of fixed frames, and a drive motor for driving the mounting shaft being installed on the fixed frame.

[0013] Preferably, the feeding assembly includes multiple sets of slots formed on the feeding plate, and the inside of each slot is rotatably connected to a pressing wheel for pressing against the packaging paper. A connecting shaft is rotatably connected to the feeding plate, and each set of pressing wheels is fixed on the connecting shaft. An operating motor for driving the connecting shaft is installed on the feeding plate.

[0014] A feeding method for manufacturing and processing packaging paper boxes includes the following steps: S1: Start the flipping assembly, drive the motor to drive the mounting shaft to rotate, causing the connecting plate and the side positioning frame to flip around the mounting shaft, so that the entire robotic arm flips to the vertical feeding state where the bearing plate is below the feeding plate. At this time, the pressure plate slides down along the mounting rod under the action of gravity and abuts against the upper surface of the bearing plate to form a horizontal lifting platform, providing stable support for the stacking of packaging paper. S2: After the flipping is completed, the stack of packaging paper is pushed into the lateral positioning frame and supported by the pressure plate. During the pushing process, the two sides of the packaging paper first abut against the inclined surfaces of the two sets of centering positioning plates. As the packaging paper continues to be pushed in, the inclined surfaces are subjected to lateral extrusion force, which pushes the two sets of centering positioning plates to move to both sides. During the movement, the slide rod slides in the sleeve and compresses the spring in the elastic component, so that the spring generates elastic force. Under the action of the spring's reverse elastic force, the two sets of centering positioning plates are pushed to always apply symmetrical lateral extrusion force to the packaging paper, automatically adjusting the stack of packaging paper to the center position of the support plate, thus completing the centering positioning. S3: After positioning is completed, start the lifting assembly and install the motor to drive the lead screw to rotate. During the rotation of the lead screw, the lifting plate is driven to slide upward along the guide rod through the mutual meshing transmission between the lead screw and the threaded sleeve. During the movement of the lifting plate, the bearing plate and the pressure plate are pushed to lift synchronously. During the lifting process, the packaging paper stack above the pressure plate moves upward and is finally pressed between the pressure plate and the feeding plate. Through the bidirectional pressing action of the feeding plate and the pressure plate, the packaging paper stack is kept in a tense state to prevent the packaging paper from scattering or slipping during the subsequent flipping process. At this time, each set of extrusion rollers is in a state of contact with the packaging paper. S4: Start the flipping component to rotate in reverse. The drive motor drives the side positioning frame to rotate around the mounting shaft, so that the robotic arm rotates from the vertical bearing position to the horizontal feeding state where the feeding plate and the conveyor belt on the feeding frame are connected. At this time, the pressure plate flips to the top of the packaging paper stack and slides down along the mounting rod under the action of gravity, always keeping in contact with the top packaging paper of the packaging paper stack. At the same time, the ball bearings on the pressure plate contact the surface of the packaging paper, reducing the frictional resistance during the pushing process. S5: After the flipping is completed, start the feeding component, operate the motor to drive the connecting shaft to rotate, and drive multiple sets of extrusion rollers on the feeding plate to rotate synchronously. Because the extrusion rollers are in contact with the surface of the bottom packaging paper, the friction drives the packaging paper to be conveyed one sheet at a time, and then sent into the packaging machine body by the conveyor belt on the feeding rack to realize continuous feeding operation. S6: As the feeding process continues, the height of the packaging paper stack gradually decreases. Under the action of gravity, the pressure plate slides down along the mounting rod to maintain downward support for the packaging paper stack and prevent it from loosening and shifting. At the same time, the downward displacement of the pressure plate drives the adjustment component to move through the transmission component. When the pressure plate moves down, it pulls the pull rope. The pull rope passes through the perforation through the bearing plate and drives the winding wheel to rotate. The winding wheel is fixed on the double-threaded tube, so it drives the double-threaded tube to rotate synchronously. Since the threads at both ends of the double-threaded tube turn in opposite directions, the rotation drives the two sets of threaded rods to move outward synchronously, thereby pushing the side plate to slide to both sides along the T-shaped rod. S7: When the side plate moves outward, the spring compression in the centering positioning component is reduced, and the lateral extrusion pressure between the centering positioning plate and the packaging paper is reduced simultaneously. This achieves adaptive adjustment where the higher the stack of packaging paper, the greater the centering extrusion pressure, and the less the stack, the smaller the centering extrusion pressure. This prevents the remaining small amount of packaging paper from being excessively squeezed, deformed, or torn, while also reducing the frictional resistance between the packaging paper and the centering positioning plate, ensuring a smooth and uninterrupted feeding process. S8: When the pressure plate is reset, the spring force of the torsion spring drives the double-headed threaded tube to rotate in the opposite direction, the winding wheel winds up the rope, and drives the side plate to reset, preparing for the centering and positioning of the next batch of packaging paper.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This device adopts a symmetrically arranged centering positioning plate on both sides in combination with an inclined guide structure. During the feeding and pushing process, it can automatically center and correct the stacked packaging paper. Combined with the spring force for flexible clamping and positioning, it can adapt to paper box materials with different stacking states, ensuring that each stack of packaging paper can be accurately centered and arranged. It completely solves the problems of manual alignment deviation, unilateral offset, and inconsistent feeding position of traditional equipment, and ensures the feeding accuracy and consistency of subsequent conveying and processing processes from the source. 2. This invention is equipped with a lifting component and a gravity-feeding pressure plate structure. After the material is positioned, the carrying plate is lifted to press the packaging paper stack between the feeding plate and the pressure plate, forming a two-way clamping limit on the material. During the switching between the vertical feeding station and the horizontal feeding station of the robotic arm, it can effectively avoid the packaging paper stack from becoming loose, misaligned, or slipping. It solves the defects of poor station switching stability and easy jamming of traditional flip-type feeding devices, and greatly improves the operational reliability of the equipment when switching operating conditions. 3. This invention relies on the adaptive downward movement of the pressure plate as the material rises, combined with a pull rope drive and a double-headed reverse threaded tube linkage structure, to achieve a purely mechanical adaptive pressure adjustment function. When the stack is full, it maintains a large lateral clamping force to ensure the material is neatly positioned. As feeding continues and the stack height decreases, it automatically reduces the centering pressure, effectively preventing a small number of cartons from developing wrinkles, deformation, tearing, or other quality problems due to excessive pressure. It precisely adapts to the material protection needs throughout the entire feeding cycle, significantly improving the yield rate of carton production. 4. The overall adaptive pressure adjustment, positioning, and clamping functions of this invention are all achieved through mechanical structure linkage, without the need to add additional electrical components such as electronic control sensors and intelligent adjustment modules. The structure is simple, the failure rate is low, the response is sensitive, and the maintenance is convenient. At the same time, it can adapt to the feeding and processing needs of different specifications of packaging boxes and is suitable for large-scale automated production. It effectively reduces equipment modification costs and operation and maintenance costs, and has higher versatility and practical value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic diagram of the flipping component structure of the present invention; Figure 3 This is a schematic diagram of the robotic arm structure of the present invention; Figure 4 This is a schematic diagram showing the state of the packaging paper after it has been stacked and compressed on a robotic arm according to the present invention. Figure 5 This is a schematic diagram of the feeding assembly structure of the present invention; Figure 6 This is a schematic diagram showing the positional relationship between the pressure plate and the robotic arm in this invention; Figure 7 This is a schematic diagram of the state of the robotic arm during loading according to the present invention; Figure 8 This is a schematic diagram of the lifting component structure of the present invention; Figure 9 This is a schematic diagram of the centering positioning component, elastic component, and pressure supply component of the present invention; Figure 10 This is a schematic diagram of the adjustment component, reset component, and transmission component of the present invention; Figure 11 This is a schematic diagram of the state of the robotic arm during the flipping and feeding process of the present invention; Figure 12 This is a schematic diagram showing the transmission direction of the transmission component and the adjustment component during the feeding process of the present invention; Figure 13 This is a schematic diagram of the centering and positioning transmission during feeding according to the present invention; Figure 14 This is a schematic diagram of the state of the robotic arm during loading after it flips over according to the present invention; Figure 15 This is a schematic diagram of the state of the robotic arm during feeding after it flips over, according to the present invention.

[0017] In the diagram: 101-Packaging machine body; 102-Feeding rack; 103-Conveyor belt; 201-Side positioning frame; 202-Feeding plate; 203-Bearing plate; 301-Fixing frame; 302-Connecting plate; 303-Mounting shaft; 304-Drive motor; 401-Slotted; 402-Extrusion roller; 403-Connecting shaft; 404-Operating motor; 501-Side plate; 502-Centering positioning plate; 503-Sloping surface; 504-T-shaped rod; 601-Set Pipe; 602-Slide rod; 603-Spring; 701-Mounting bracket; 702-Double-ended threaded pipe; 703-Threaded rod; 801-Fixing ring; 802-Torsion spring; 901-Pressure plate; 902-Mounting block; 903-Mounting rod; 1001-Rewinding wheel; 1002-Pull rope; 11-Ball bearing; 1201-Lifting plate; 1202-Fixing plate; 1203-Threaded sleeve; 1204-Lead screw; 1205-Mounting motor; 1206-Guide rod. Detailed Implementation

[0018] 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.

[0019] Example 1 Please see Figures 1-15 The figure shows a feeding device for producing and processing paper boxes, including a robotic arm for feeding and conveying paper box packaging machines. The robotic arm includes a side positioning frame 201, on which a feeding plate 202 and a bearing plate 203 are provided. The feeding plate 202 is fixed on the side positioning frame 201. The paper box packaging machine includes a packaging machine body 101 and a feeding frame 102 provided on one side of the packaging machine body 101. Multiple sets of conveyor belts 103 are provided on the feeding frame 102. It should be noted that the packaging machine body 101, the feeding rack 102 and the conveyor belt 103 are conventional components in this application, and their working principles and control methods are well-known technologies, so they will not be described in detail here.

[0020] Also includes: A flipping component is set between the robotic arm and the feeding rack 102 to flip the robotic arm to different angles for loading and feeding at different positions. The feeding plate 202 is equipped with a feeding component for feeding drive after flipping. The lifting assembly is located between the support plate 203 and the side positioning frame 201. It is used to lift the support plate 203 after the packaging paper is fed, so that the packaged paper after feeding is pressed between the feeding plate 202 and the support plate 203. In addition, a centering positioning component is provided on the support plate 203 for centering the packaging paper during the feeding process. An adjustment component is provided on the support plate 203 for adjusting and controlling the centering pressure of the packaging paper during the centering positioning process. A pressure supply component is provided on the support plate 203 for supplying pressure to the stacked packaging paper during the feeding process after flipping. A transmission component is provided between the pressure supply component and the adjustment component for assisting the transmission of the adjustment component. Under the interaction of the feeding drive component, the flipping component, the adjustment component, the pressure supply component and the transmission component, when the robotic arm flips and feeds, as the height of the packaging paper stack decreases, the pressure for centering the packaging paper is reduced simultaneously. It should be noted that the coordinated operation of the flipping component, lifting component, centering positioning component, pressure supply component, transmission component, and adjustment component effectively solves the technical defects of traditional cardboard feeding equipment, such as poor positioning accuracy, easy compression and deformation of cardboard boxes, easy scattering during flipping, feeding jamming, and inability to adapt to the stacking height for adaptive pressure adjustment. Furthermore, through the transmission, as the packaging paper is continuously fed and the stacking height decreases, the lateral compression force of the centering positioning on both sides is automatically reduced. This ensures that the equipment has sufficient positioning and clamping force to maintain regularity when the stack is full, and automatically releases pressure when there is less material, preventing a small amount of cardboard from being squeezed, wrinkled, deformed, or torn. At the same time, it reduces the lateral frictional resistance of the cardboard, ensuring continuous and stable single-sheet feeding and smooth feeding without jamming.

[0021] Preferably, the centering positioning component includes side plates 501 disposed on both sides of the support plate 203. Two sets of T-shaped rods 504 are slidably connected to the side plates 501 in a symmetrical state. One end of the T-shaped rods 504 is fixed to one side of the support plate 203. The opposite side of the two sets of side plates 501 is connected to a centering positioning plate 502 through an elastic component. The centering positioning plate 502 has an inclined surface 503 for abutting against the side of the pushed-in packaging paper. The elastic component includes multiple sets of sleeves 601 fixed to the centering positioning plate 502. A sliding rod 602 is slidably connected to the sleeve 601. One end of the sliding rod 602 is fixed to the side plate 501. A spring 603 is sleeved on the outside of the sleeve 601. It should be noted that: when the stacked packaging paper is pushed into the lateral positioning frame 201 and supported by the pressure plate 901, the two sides of the packaging paper first abut against the inclined surfaces 503 of the two sets of centering positioning plates 502 during the pushing process. As the packaging paper continues to be pushed in, the inclined surfaces 503 are subjected to lateral extrusion force, which pushes the two sets of centering positioning plates 502 to move to both sides. During the movement, the slide rod 602 slides in the sleeve 601 and compresses the spring 603 in the elastic component, so that the spring 603 generates elastic force. Under the action of the reverse elastic force of the spring 603, the two sets of centering positioning plates 502 are pushed to always apply symmetrical lateral extrusion force to the packaging paper, automatically adjusting the stack of packaging paper to the center position of the support plate 203, thus completing the centering positioning.

[0022] Preferably, the adjustment assembly includes a mounting bracket 701 fixed to the upper end of the support plate 203. A double-threaded tube 702 is rotatably connected to the mounting bracket 701, and the threads at both ends of the double-threaded tube 702 are arranged in opposite directions. Threaded rods 703 are threadedly engaged at both ends of the double-threaded tube 702, and one end of each of the two sets of threaded rods 703 is fixed to one of the two sets of side plates 501. It should be noted here that: through transmission, the double-threaded tube 702 is driven to rotate synchronously. Since the threads at both ends of the double-threaded tube 702 turn in opposite directions, when rotating, the two sets of threaded rods 703 move outward synchronously, thereby pushing the side plate 501 to slide closer or further away from each other along the T-shaped rod 504. Through the sliding action, the compression of the spring 603 is adjusted, thereby achieving the purpose of adjusting the central extrusion pressure.

[0023] Preferably, the pressure supply component includes a pressure plate 901 disposed between the support plate 203 and the feed plate 202. When the robotic arm is rotated away from the feed rack 102 under the action of the flipping component, the pressure plate 901 abuts against the support plate 203 under the action of gravity. At this time, the pressure plate 901 and the support plate 203 support and lift the packaging paper after it has been stacked. After the feeding is completed, when the robotic arm is rotated towards the feed rack 102 under the action of the flipping component, the pressure plate 901 is at the top of the packaging paper and maintains abutment and compression against the stacked packaging paper under the action of gravity. Two sets of mounting blocks 902 are fixed symmetrically on one side of the pressure plate 901. Mounting rods 903 are slidably connected to the two sets of mounting blocks 902. The mounting rods 903 are fixed on the lateral positioning frame 201. The opposite side of the pressure plate 901 and the feed plate 202 is rotatably connected to multiple sets of spherical grooves for abutting and compression against the packaging paper. It should be noted here that: when the flipping component is started to rotate in reverse, the drive motor 304 drives the lateral positioning frame 201 to rotate around the mounting shaft 303, so that the robotic arm is flipped from the vertical bearing position to the horizontal feeding state where the feeding plate 202 and the conveyor belt 103 on the feeding frame 102 are connected. At this time, the pressure plate 901 slides down along the mounting rod 903 under the action of gravity, maintaining downward pressure support on the packaging paper stack and preventing it from loosening and shifting.

[0024] Preferably, two sets of transmission components are symmetrically arranged between the pressure plate 901 and the double-ended threaded tube 702. The transmission components include a winding wheel 1001 fixed on the double-ended threaded tube 702, a pull rope 1002 wound on the winding wheel 1001, a through hole on the bearing plate 203, one end of the pull rope 1002 passing through the through hole and fixed to the pressure plate 901, and a reset component for assisting the reset after transmission is provided between the mounting bracket 701 and the double-ended threaded tube 702. It should be noted here that as the feeding process continues, the height of the packaging paper stack gradually decreases. Under the action of gravity, the pressure plate 901 continues to slide downward along the mounting rod 903, maintaining downward pressure support on the packaging paper stack and preventing it from loosening and shifting. At the same time, the downward displacement of the pressure plate 901 drives the adjustment component to move through the transmission component. When the pressure plate 901 moves downward, it pulls the pull rope 1002. The pull rope 1002 passes through the perforation through the bearing plate 203, driving the winding wheel 1001 to rotate. The winding wheel 1001 is fixed on the double-threaded tube 702, thus driving the double-threaded tube 702 to rotate synchronously.

[0025] Preferably, the reset assembly includes a retaining ring 801 fixed on the double-threaded tube 702, and a torsion spring 802 is sleeved on the outside of the double-threaded tube 702. The two ends of the torsion spring 802 are respectively connected to the retaining ring 801 and the mounting bracket 701. It should be noted that during the rotation of the double-ended threaded tube 702, the torsion spring 802 is deformed by the fixing ring 801 to generate elastic force. When the pressure plate 901 is reset, the elastic force of the torsion spring 802 causes the double-ended threaded tube 702 to rotate in the opposite direction. The winding wheel 1001 winds up the pull rope 1002, which drives the side plate 501 to reset, preparing for the centering and positioning of the next batch of packaging paper.

[0026] Preferably, the lifting assembly includes a lifting plate 1201 fixed to one side of the bearing plate 203, two sets of fixing plates 1202 fixed on the lateral positioning frame 201, the lifting plate 1201 located between the two sets of fixing plates 1202, a threaded sleeve 1203 fixed on the lifting plate 1201, a lead screw 1204 threadedly connected to the threaded sleeve 1203, the lead screw 1204 rotatably connected between the two sets of fixing plates 1202, a mounting motor 1205 for driving the lead screw 1204 installed on the fixing plate 1202, and two sets of guide rods 1206 slidably connected to the lifting plate 1201, the guide rods 1206 fixed between the two sets of fixing plates 1202; It should be noted here that: after positioning is completed, the lifting assembly is started, and the motor 1205 drives the lead screw 1204 to rotate. During the rotation of the lead screw 1204, the lifting plate 1201 is driven to slide upward along the guide rod 1206 through the mutual meshing transmission between the lead screw 1204 and the threaded sleeve 1203. During the movement of the lifting plate 1201, the bearing plate 203 and the pressure plate 901 are pushed to lift synchronously. During the lifting process, the packaging paper stack above the pressure plate 901 moves upward and is finally pressed between the pressure plate 901 and the feeding plate 202. Through the bidirectional pressing action of the feeding plate 202 and the pressure plate 901, the packaging paper stack is kept in a taut state to prevent the packaging paper from scattering or slipping during the subsequent flipping process. At this time, each set of extrusion rollers 402 is in a state of contact with the packaging paper. In addition, the motor 1205 is installed as a conventional drive component, and its working principle and control method will not be described in detail here.

[0027] Preferably, the flipping assembly includes a fixed frame 301 fixed on both sides of the feed rack 102, a connecting plate 302 fixed on the lateral positioning frame 201, a mounting shaft 303 fixed on the connecting plate 302, the mounting shaft 303 being rotatably connected between the two sets of fixed frames 301, and a drive motor 304 for driving the mounting shaft 303 is mounted on the fixed frame 301. It should be noted here that: the drive motor 304 drives the mounting shaft 303 to rotate, which in turn causes the connecting plate 302 and the lateral positioning frame 201 to rotate around the mounting shaft 303; In addition, the working principle and control method of the drive motor 304, as a conventional drive component, will not be elaborated on here.

[0028] Preferably, the feeding assembly includes multiple sets of slots 401 formed on the feeding plate 202, and extrusion rollers 402 for pressing against and squeezing the packaging paper are rotatably connected inside the slots 401. A connecting shaft 403 is rotatably connected to the feeding plate 202, and each set of extrusion rollers 402 is fixed on the connecting shaft 403. An operating motor 404 for driving the connecting shaft 403 is installed on the feeding plate 202. It should be noted here that after the flipping is completed, the feeding component is started, and the motor 404 drives the connecting shaft 403 to rotate, which drives the multiple sets of extrusion rollers 402 on the feeding plate 202 to rotate synchronously. Because the extrusion rollers 402 are in contact with the surface of the bottom packaging paper, the packaging paper is conveyed one sheet at a time through friction and sent into the packaging machine body 101 via the conveyor belt 103 on the feeding rack 102, so as to realize continuous feeding operation. In addition, the working principle and control method of the operating motor 404, as a conventional driving component, will not be elaborated on here.

[0029] This solution provides a feeding method for the production and processing of packaging paper boxes, comprising the following steps: S1: Activate the flipping assembly, drive motor 304 to drive mounting shaft 303 to rotate, causing connecting plate 302 and lateral positioning frame 201 to flip around mounting shaft 303, so that the entire robotic arm flips to a vertical feeding state where the bearing plate 203 is below the feeding plate 202 (see...). Figure 14 In this state, the pressure plate 901 slides down along the mounting rod 903 under the action of gravity and abuts against the upper surface of the bearing plate 203 to form a horizontal lifting platform, providing stable support for the stacking of packaging paper; S2: After the flipping is completed, the stack of packaging paper is pushed into the lateral positioning frame 201 and supported by the pressure plate 901. During the pushing process, the two sides of the packaging paper first abut against the inclined surfaces 503 of the two sets of centering positioning plates 502. As the packaging paper continues to be pushed in, the inclined surfaces 503 are subjected to lateral extrusion force, which pushes the two sets of centering positioning plates 502 to move to both sides. During the movement, the slide rod 602 slides in the sleeve 601 and compresses the spring 603 in the elastic component, so that the spring 603 generates elastic force. Under the action of the reverse elastic force of the spring 603, the two sets of centering positioning plates 502 are pushed to always apply symmetrical lateral extrusion force to the packaging paper, automatically adjusting the stack of packaging paper to the center position of the support plate 203, and completing the centering positioning. S3: After positioning is completed, start the lifting assembly, install motor 1205 to drive lead screw 1204 to rotate. During the rotation of lead screw 1204, through the mutual meshing transmission between lead screw 1204 and threaded sleeve 1203, the lifting plate 1201 is driven to slide upward along guide rod 1206. During the movement of lifting plate 1201, the bearing plate 203 and pressure plate 901 are pushed to lift synchronously. During the lifting process, the packaging paper stack above pressure plate 901 moves upward and is finally pressed between pressure plate 901 and feed plate 202. Through the bidirectional pressing action of feed plate 202 and pressure plate 901, the packaging paper stack is kept in a taut state to prevent the packaging paper from scattering or slipping during the subsequent flipping process. At this time, each set of extrusion rollers 402 is in a state of contact with the packaging paper. S4: Start the reverse rotation of the flipping assembly. The drive motor 304 drives the lateral positioning frame 201 to flip around the mounting shaft 303, causing the robotic arm to flip from the vertical bearing position to the horizontal feeding state where the feed plate 202 and the conveyor belt 103 on the feed rack 102 are connected (see...). Figure 15 In this state, the pressure plate 901 flips over to the top of the packaging paper stack and slides down along the mounting rod 903 under the action of gravity, always keeping in contact with the top packaging paper of the packaging paper stack. At the same time, the ball bearings 11 on the pressure plate 901 contact the surface of the packaging paper, reducing the frictional resistance during the pushing process. S5: After the flipping is completed, start the feeding component, operate the motor 404 to drive the connecting shaft 403 to rotate, drive the multiple sets of extrusion rollers 402 on the feeding plate 202 to rotate synchronously. Because the extrusion rollers 402 are in contact with the surface of the bottom packaging paper, the packaging paper is conveyed one sheet by friction and sent into the packaging machine body 101 via the conveyor belt 103 on the feeding rack 102 to realize continuous feeding operation. S6: As the feeding process continues, the height of the packaging paper stack gradually decreases. Under the action of gravity, the pressure plate 901 slides down along the mounting rod 903 to maintain downward support for the packaging paper stack and prevent it from loosening and shifting. At the same time, the downward displacement of the pressure plate 901 drives the adjustment component to move through the transmission component. When the pressure plate 901 moves down, it pulls the pull rope 1002. The pull rope 1002 passes through the bearing plate 203 through the perforation and drives the winding wheel 1001 to rotate. The winding wheel 1001 is fixed on the double-threaded tube 702, so it drives the double-threaded tube 702 to rotate synchronously. Since the threads at both ends of the double-threaded tube 702 turn in opposite directions, when rotating, it drives the two sets of threaded rods 703 to move outward synchronously, thereby pushing the side plate 501 to slide to both sides along the T-shaped rod 504. S7: When the side plate 501 moves outward, the compression of the spring 603 in the centering positioning component is reduced, and the lateral extrusion pressure between the centering positioning plate 502 and the packaging paper is reduced simultaneously. This achieves adaptive adjustment where the higher the stack of packaging paper, the greater the centering extrusion pressure, and the less the stack of material, the smaller the centering extrusion pressure. This prevents the remaining small amount of packaging paper from being excessively squeezed, deformed, or torn, while also reducing the frictional resistance between the packaging paper and the centering positioning plate 502, ensuring a smooth and uninterrupted feeding process. S8: When the pressure plate 901 is reset, the elastic force of the torsion spring 802 drives the double-headed threaded tube 702 to rotate in the opposite direction, the winding wheel 1001 winds up the pull rope 1002, and drives the side plate 501 to reset, preparing for the centering and positioning of the next batch of packaging paper.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for the production and processing of packaging paper boxes, comprising: A robotic arm for feeding and conveying materials to a paper box packaging machine. The robotic arm includes a lateral positioning frame (201), on which a feeding plate (202) and a bearing plate (203) are provided. The feeding plate (202) is fixed on the lateral positioning frame (201). The paper box packaging machine includes a packaging machine body (101) and a feeding frame (102) located on one side of the packaging machine body (101). Multiple sets of conveyor belts (103) are provided on the feeding frame (102). Its characteristic is that it further includes: A flipping component is set between the robotic arm and the feeding rack (102) to flip the robotic arm to different angles for loading and feeding at different positions. The feeding plate (202) is provided with a feeding component for feeding drive after flipping. The lifting assembly is located between the support plate (203) and the side positioning frame (201) and is used to lift the support plate (203) after the packaging paper is fed, so that the packaged paper after feeding is pressed between the feeding plate (202) and the support plate (203); In addition, a centering positioning component is provided on the support plate (203) for centering the packaging paper during the feeding process. The support plate (203) is provided with an adjustment component for adjusting and controlling the centering pressure of the packaging paper during the centering positioning process. The support plate (203) is provided with a pressure supply component for supplying pressure to the stacked packaging paper during the feeding process after flipping. A transmission component is provided between the pressure supply component and the adjustment component for assisting the transmission of the adjustment component. Under the interaction of the feeding drive component, the flipping component, the adjustment component, the pressure supply component and the transmission component, when the robotic arm flips and feeds, as the height of the packaging paper stack decreases, the pressure for centering the packaging paper is reduced synchronously.

2. The feeding device for producing and processing packaging paper boxes according to claim 1, characterized in that: The centering positioning component includes side plates (501) disposed on both sides of the support plate (203). Two sets of T-shaped rods (504) are slidably connected on the side plates (501). One end of the T-shaped rods (504) is fixed to one side of the support plate (203). The opposite sides of the two sets of side plates (501) are connected to a centering positioning plate (502) through an elastic component. The centering positioning plate (502) has an inclined surface (503) for abutting against the side of the pushed-in packaging paper. The elastic component includes multiple sets of sleeves (601) fixed on the centering positioning plate (502). A slide rod (602) is slidably connected to the sleeve (601). One end of the slide rod (602) is fixed to the side plate (501). A spring (603) is sleeved on the outside of the sleeve (601).

3. The feeding device for producing and processing packaging paper boxes according to claim 2, characterized in that: The adjustment assembly includes a mounting bracket (701) fixed to the upper end of the support plate (203). A double-threaded tube (702) is rotatably connected to the mounting bracket (701), and the threads at both ends of the double-threaded tube (702) are arranged in opposite directions. The two ends of the double-threaded tube (702) are threadedly connected to threaded rods (703), and one end of each of the two sets of threaded rods (703) is fixed to one of the two sets of side plates (501).

4. The feeding device for producing and processing packaging paper boxes according to claim 3, characterized in that: The pressure supply assembly includes a pressure plate (901) disposed between the support plate (203) and the feed plate (202). When the robotic arm rotates away from the feed rack (102) under the action of the flipping assembly, the pressure plate (901) abuts against the support plate (203) under the action of gravity. At this time, the pressure plate (901) and the support plate (203) support and lift the packaging paper after it has entered the stack. After the feeding is completed, when the robotic arm rotates towards the feed rack (102) under the action of the flipping assembly, the pressure plate (901) is... At the top of the packaging paper, the stacked packaging paper is pressed against each other under the action of gravity. Two sets of mounting blocks (902) are fixed symmetrically on one side of the pressure plate (901). Mounting rods (903) are slidably connected to the two sets of mounting blocks (902). The mounting rods (903) are fixed on the lateral positioning frame (201). The opposite side of the pressure plate (901) and the feed plate (202) is rotatably connected to ball bearings (11) for pressing against the packaging paper through multiple sets of spherical grooves.

5. The feeding device for producing and processing packaging paper boxes according to claim 4, characterized in that: The transmission assembly is arranged in two sets symmetrically between the pressure plate (901) and the double-ended threaded tube (702). The transmission assembly includes a winding wheel (1001) fixed on the double-ended threaded tube (702), and a pull rope (1002) is wound on the winding wheel (1001). A through hole is opened on the bearing plate (203). One end of the pull rope (1002) passes through the through hole and is fixed to the pressure plate (901). A reset assembly for assisting the reset after transmission is provided between the mounting bracket (701) and the double-ended threaded tube (702).

6. The feeding device for producing and processing packaging paper boxes according to claim 5, characterized in that: The reset assembly includes a retaining ring (801) fixed on a double-threaded tube (702), and a torsion spring (802) is sleeved on the outside of the double-threaded tube (702). The two ends of the torsion spring (802) are respectively connected to the retaining ring (801) and the mounting bracket (701).

7. The feeding device for producing and processing packaging paper boxes according to claim 1, characterized in that: The lifting assembly includes a lifting plate (1201) fixed to one side of the bearing plate (203). Two sets of fixing plates (1202) are fixed on the lateral positioning frame (201). The lifting plate (1201) is located between the two sets of fixing plates (1202). A threaded sleeve (1203) is fixed on the lifting plate (1201). A lead screw (1204) is threadedly connected to the threaded sleeve (1203). The lead screw (1204) is rotatably connected between the two sets of fixing plates (1202). A motor (1205) for driving the lead screw (1204) is installed on the fixing plate (1202). Two sets of guide rods (1206) are symmetrically slidably connected on the lifting plate (1201). The guide rods (1206) are fixed between the two sets of fixing plates (1202).

8. The feeding device for producing and processing packaging paper boxes according to claim 1, characterized in that: The flipping assembly includes a fixed frame (301) fixed on both sides of the feed rack (102), a connecting plate (302) fixed on the lateral positioning frame (201), a mounting shaft (303) fixed on the connecting plate (302), the mounting shaft (303) being rotatably connected between the two sets of fixed frames (301), and a drive motor (304) for driving the mounting shaft (303) mounted on the fixed frame (301).

9. The feeding device for producing and processing packaging paper boxes according to claim 1, characterized in that: The feeding assembly includes multiple slots (401) formed on the feeding plate (202). The slots (401) are rotatably connected to extrusion rollers (402) for pressing against the packaging paper. A connecting shaft (403) is rotatably connected to the feeding plate (202). Each set of extrusion rollers (402) is fixed on the connecting shaft (403). An operating motor (404) for driving the connecting shaft (403) is installed on the feeding plate (202).

10. A feeding method for manufacturing and processing packaging paper boxes, comprising a feeding device for manufacturing and processing packaging paper boxes according to any one of claims 1-9, characterized in that, Includes the following steps: S1: Start the flipping assembly, drive the motor (304) to drive the mounting shaft (303) to rotate, causing the connecting plate (302) and the side positioning frame (201) to flip around the mounting shaft (303), so that the entire robotic arm flips to the vertical feeding state where the bearing plate (203) is below the feeding plate (202). At this time, the pressure plate (901) slides down along the mounting rod (903) under the action of gravity and abuts against the upper surface of the bearing plate (203) to form a horizontal lifting platform, providing stable support for the stacking of packaging paper; S2: After the flipping is completed, the stack of packaging paper is pushed into the side positioning frame (201) and supported by the pressure plate (901). During the pushing process, the two sides of the packaging paper first abut against the inclined surface (503) of the two sets of center positioning plates (502). As the packaging paper continues to be pushed in, the inclined surface (503) is subjected to lateral extrusion force, which pushes the two sets of center positioning plates (502) to move to both sides. During the movement, the slide bar (602) slides in the sleeve (601) and compresses the spring (603) in the elastic component, so that the spring (603) generates elastic force. Under the action of the reverse elastic force of the spring (603), the two sets of center positioning plates (502) are pushed to always apply symmetrical lateral extrusion force to the packaging paper, and automatically adjust the stack of packaging paper to the center position of the support plate (203) to complete the center positioning. S3: After positioning is completed, start the lifting assembly and install the motor (1205) to drive the lead screw (1204) to rotate. During the rotation of the lead screw (1204), the mutual meshing transmission between the lead screw (1204) and the threaded sleeve (1203) drives the lifting plate (1201) to slide upward along the guide rod (1206). During the movement of the lifting plate (1201), the bearing plate (203) and the pressure plate (901) are pushed to lift synchronously. During the lifting process, the packaging paper stack above the pressure plate (901) moves upward and is finally pressed between the pressure plate (901) and the feeding plate (202). Through the bidirectional pressing action of the feeding plate (202) and the pressure plate (901), the packaging paper stack is kept in a tense state to prevent the packaging paper from scattering or slipping during the subsequent flipping process. At this time, each set of extrusion wheels (402) is in a state of contact with the packaging paper. S4: Start the flipping component to rotate in reverse. Drive the motor (304) to drive the side positioning frame (201) to rotate around the mounting shaft (303), so that the robotic arm is flipped from the vertical bearing position to the horizontal feeding state where the feeding plate (202) and the conveyor belt (103) on the feeding frame (102) are connected. At this time, the pressure plate (901) flips to the top of the packaging paper stack and slides down along the mounting rod (903) under the action of gravity, always keeping in contact with the top packaging paper of the packaging paper stack. At the same time, the ball (11) on the pressure plate (901) contacts the surface of the packaging paper, reducing the frictional resistance during the pushing process. S5: After the flipping is completed, start the feeding assembly, operate the motor (404) to drive the connecting shaft (403) to rotate, drive the multiple sets of extrusion rollers (402) on the feeding plate (202) to rotate synchronously. Because the extrusion rollers (402) are in contact with the bottom packaging paper surface, the packaging paper is conveyed one sheet by friction and sent into the packaging machine body (101) via the conveyor belt (103) on the feeding rack (102) to realize continuous feeding operation; S6: As the feeding process continues, the height of the packaging paper stack gradually decreases. The pressure plate (901) slides down along the mounting rod (903) under the action of gravity, maintaining downward support for the packaging paper stack and preventing it from loosening and shifting. At the same time, the downward displacement of the pressure plate (901) drives the adjustment component to move through the transmission component. When the pressure plate (901) moves down, it pulls the pull rope (1002). The pull rope (1002) passes through the bearing plate (203) through the perforation, driving the winding wheel (1001) to rotate. The winding wheel (1001) is fixed on the double-threaded tube (702), thus driving the double-threaded tube (702) to rotate synchronously. Since the threads at both ends of the double-threaded tube (702) rotate in opposite directions, when rotating, it drives the two sets of threaded rods (703) to move outward synchronously, thereby pushing the side plate (501) to slide along the T-shaped rod (504) to both sides. S7: When the side plate (501) moves outward, the compression of the spring (603) in the centering positioning component is reduced, and the lateral extrusion pressure between the centering positioning plate (502) and the packaging paper is reduced simultaneously. This achieves adaptive adjustment where the higher the packaging paper stack, the greater the centering extrusion pressure, and the less the stack, the smaller the centering extrusion pressure. This avoids the remaining small amount of packaging paper being excessively squeezed, deformed, or torn. At the same time, it reduces the frictional resistance between the packaging paper and the centering positioning plate (502), ensuring a smooth and uninterrupted feeding process. S8: When the pressure plate (901) is reset, the elastic force of the torsion spring (802) drives the double-headed threaded tube (702) to rotate in the opposite direction, the winding wheel (1001) winds up the pull rope (1002), and drives the side plate (501) to reset, preparing for the centering positioning of the next batch of packaging paper.

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