Automatic rewinding and cutting integrated machine for disposable humidification paper of artificial nose

Abstract

The application belongs to the technical field of medical consumable processing equipment, and particularly relates to an automatic rewinding and cutting integrated machine for wetting paper for disposable artificial nose, which comprises a rack, a table plate fixedly installed at the top of the rack, a tensioning mechanism arranged on one side of the rack, a unwinding mechanism, a feeding mechanism, a winding and discharging mechanism and a shearing mechanism installed at the top of the table plate. The application realizes full-process automatic processing, and each process is compactly arranged and cooperates with automatic discharging of the discharging port, so that manual transfer is not needed and pollution risk is reduced. The tensioning mechanism realizes constant tension control through counterweight ball gravity cooperation and sensor closed-loop feedback, so that the wetting paper strip is prevented from being deformed. The feeding mechanism ensures that the feeding position is accurate and consistent. The dispensing head is used for fixed-point and fixed-quantity glue coating, and the glue is uniformly sealed through extrusion of the inner wall of the circular pipe. The shearing mechanism is used for cutting in the clamped state, so that the cut is smooth and the end part is clamped to facilitate continuous operation. When the product is discharged, the annular block stably pushes the product out for automatic discharge. The equipment is reliable in operation and convenient in maintenance.

Description

Technical Field

[0001] This invention relates to the field of medical consumables processing equipment technology, and in particular to an automatic rewinding and cutting machine for disposable artificial nose wetted paper. Background Technology

[0002] In clinical medicine, disposable artificial noses (also known as heat and moisture exchangers) are used to warm and humidify inhaled air, replacing the upper respiratory tract. Their core functional component is the humidifying paper. The humidifying paper is typically assembled in rolls within the artificial nose shell. The paper must possess uniform hygroscopicity and breathability, and the tightness of the winding, the adhesion between layers, and the neatness of the cuts directly affect the performance of the artificial nose. Currently, the rewinding and cutting of the humidifying paper mostly employs separate equipment. This involves a separate rewinding machine first slitting and rewinding the large rolls of humidifying paper strips, followed by manual or semi-automatic cutting to a fixed length. This process relies on manual transfer, resulting in low production efficiency.

[0003] Furthermore, in existing processing methods, the rewound wetted paper rolls are mostly sealed manually using tape or hot melt adhesive. The sealing position and amount of adhesive are difficult to control precisely, easily leading to problems such as insecure sealing or adhesive overflow contaminating the effective area of ​​the paper. During cutting, the paper ends lack effective clamping, easily resulting in rough edges, wrinkles, or loose ends, affecting subsequent assembly accuracy. Simultaneously, the paper is repeatedly exposed to the manual operating environment throughout the entire processing, increasing the risk of contamination and failing to meet the increasingly stringent clean production requirements for medical consumables. Therefore, there is an urgent need to develop an integrated processing equipment capable of automatically unwinding wetted paper, constant tension conveying, precise adhesive sealing, fixed-length cutting, and automatic unloading to improve production efficiency and product quality consistency. To this end, this application proposes an automatic rewinding and cutting integrated machine for disposable artificial nose wetted paper. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this invention proposes an automatic rewinding and cutting machine for disposable artificial nose wetted paper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic rewinding and cutting integrated machine for disposable artificial nose wettable paper, comprising a frame, a table plate fixedly installed on the top of the frame, a tensioning mechanism provided on one side of the frame, an unwinding mechanism, a feeding mechanism, a winding and unloading mechanism and a shearing mechanism installed on the top of the table plate, an adhesive dispensing mechanism installed on the winding and unloading mechanism, a feeding port opened on the table plate, and a feeding hopper connected to the feeding port fixedly installed at the bottom of the table plate, the feeding hopper penetrating the frame and fixedly connected to the frame; The unwinding mechanism is located directly above the tensioning mechanism. The unwinding mechanism is used to unwind the wetted paper strip. The feeding mechanism is used to clamp the wetted paper strip and transport it to the winding and unloading mechanism for winding and wrapping. The glue dispensing mechanism is used to apply glue to the wetted paper strip. The shearing mechanism is used to cut the wetted paper strip. After the wetted paper strip is entangled and stuck to the winding part in the winding and unloading mechanism, it is pushed into the unloading hopper by the winding and unloading mechanism for discharge.

[0006] Preferably, the unwinding mechanism includes a mounting frame fixed to the top of the platform, a positioning plate rotatably mounted on the front side of the mounting frame, a motor fixedly mounted on the rear side of the mounting frame, the output shaft of the motor rotatably passing through the mounting frame and fixedly connected to the center of the rotating disk, and a positioning plate detachably mounted on the side of the rotating disk away from the mounting frame.

[0007] Preferably, the tensioning mechanism includes two transparent plates fixed to the side of the platform, two guide bars fixedly installed between the two transparent plates, the two guide bars being arranged in a Y shape, a detection element fixedly installed at the bottom end of each of the two guide bars, a guide wheel rotatably installed between the two transparent plates, and a counterweight bead movably installed between the two transparent plates, the counterweight bead being located between the two guide bars.

[0008] Preferably, the discharge port has a slot on the side near the tensioning mechanism, and the two side walls of the slot are coplanar with the inner side surfaces of the two transparent plates, respectively. The feeding mechanism includes an electric linear module fixed on the platform. A mounting plate is fixedly installed on the slider of the electric linear module. The mounting plate is slidably installed on the top of the platform. Two finger cylinders are fixedly installed on the mounting plate. The two finger cylinders are fixedly installed on the gripper below with the same base. The two finger cylinders are fixedly installed on the gripper above with the same pressure strip. The top of the base has a rectangular groove that matches the pressure strip.

[0009] Preferably, the winding and unloading mechanism includes a support fixed to the top of the platform, a circular tube fixedly installed through the support, a rectangular opening on the circular tube, a cylinder rotatably installed inside the circular tube, a shaft fixedly installed at the center of the end of the cylinder near the rectangular opening, two winding rods fixedly installed on the side of the shaft away from the cylinder, a pulley two fixedly installed at the end of the cylinder away from the shaft, a motor two fixedly installed through the support, a pulley one fixedly installed on the output shaft of the motor two, and a synchronous belt sleeved on the motor two and the pulley one.

[0010] Preferably, a mounting base is fixedly installed on the side of the support away from the second motor, and a single-shaft cylinder is fixedly installed on the side of the mounting base away from the support. A rotating seat is rotatably installed on the piston rod of the single-shaft cylinder. Two push-pull rods are fixedly installed on the side of the rotating seat away from the single-shaft cylinder. Both push-pull rods pass through a cylinder and are slidably connected to the cylinder. The same annular block is fixedly installed at the end of the two push-pull rods away from the rotating seat. The annular block is movably sleeved on the shaft.

[0011] Preferably, the dispensing mechanism includes a dual-axis cylinder fixed on a support, and a dispensing head is fixedly mounted on the piston rod of the dual-axis cylinder.

[0012] Preferably, the shearing mechanism includes a dual-axis cylinder two fixed to the top of the platform, and pneumatic shears are fixedly mounted on the piston rod of the dual-axis cylinder two.

[0013] Preferably, the positioning plate is detachably connected to the rotating plate by bolts or quick-release buckles, and anti-slip rubber pads are provided on the sides of the rotating plate and the positioning plate that are close to each other.

[0014] Preferably, the two detection elements are through-beam photoelectric sensors, the distance between the two detection elements is greater than the diameter of the counterweight bead, the counterweight bead is located between the two guide strips and can slide up and down along the extension direction of the guide strips, the counterweight bead is used to press down the wetted paper strip by its own weight during the unwinding process to keep the wetted paper strip taut.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves fully automated processing through integrated structural design. The frame and table form a stable installation foundation. The unwinding mechanism, feeding mechanism, rewinding and unloading mechanism, dispensing mechanism and shearing mechanism are compactly arranged along the process sequence. They work together with the unloading port and unloading hopper to complete automatic material discharge. No manual transfer operation is required, which effectively reduces the risk of contact contamination in the production process of medical consumables and improves the cleanliness of the products.

[0016] In terms of tension control and conveying accuracy, the tensioning mechanism adopts a closed-loop feedback structure with counterweight beads and through-beam detectors. The counterweight beads apply a constant tension to the wetted paper strip using their own weight, and the detectors monitor the position of the counterweight beads in real time to control the start and stop of the unwinding mechanism's motor. This achieves automatic matching of unwinding and rewinding speeds, effectively preventing tensile deformation or breakage of the wetted paper strip due to sudden tension changes during high-speed processing. Simultaneously, the electric linear module of the feeding mechanism, combined with the base and pressure bar driven by a finger cylinder, uses a rectangular slot fitting structure to achieve precise clamping and spaced feeding of the wetted paper strip's end, ensuring consistent feeding position each time and providing a precise positioning basis for subsequent rewinding and cutting.

[0017] Regarding the quality of winding, sealing, and cutting, in the winding and unloading mechanism, motor two drives the cylinder and winding rod to rotate and wind the material via a pulley set. In the dispensing mechanism, the dual-axis cylinder one drives the dispensing head to apply glue to the wetted paper strip at a fixed point and in a fixed quantity at the moment the winding is completed. During the subsequent winding process, the glue is evenly applied due to the radial pressure of the inner wall of the tube, achieving a strong and reliable sealing adhesion, replacing the manual tape sealing method, and ensuring good sealing quality consistency. In the shearing mechanism, the dual-axis cylinder two pushes the pneumatic scissors to perform cutting while the wetted paper strip is clamped. The cut is flat and without burrs, and the end of the wetted paper strip always remains within the gripping range of the jaws after cutting, facilitating direct feeding in the next cycle without the need for manual re-feeding of paper, greatly improving the continuity of processing.

[0018] In terms of ease of unloading and maintenance, the single-axis cylinder in the winding and unloading mechanism drives the annular block to slide axially along the shaft through a rotating seat and push-pull rod, smoothly pushing the finished small rolls out from the two winding rods and dropping them into the unloading hopper through the unloading port, achieving fully automatic unloading. The detachable connection structure between the positioning plate and the rotating plate, combined with anti-slip rubber gaskets, facilitates the quick assembly and disassembly of the large rolls of wetted paper tape and stable unwinding; the transparent plate allows operators to observe the movement of the counterweight beads and the operation of the wetted paper tape in real time, facilitating equipment debugging and troubleshooting. The overall equipment is reliable in operation and easy to maintain. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic rewinding and cutting machine for disposable artificial nose wettable paper proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of an automatic rewinding and cutting machine for disposable artificial nose wettable paper proposed in this invention. Figure 2 ; Figure 3 This is a three-dimensional side sectional view of the tensioning mechanism in an automatic rewinding and cutting machine for disposable artificial nose wettable paper proposed in this invention. Figure 4 This is a partial structural diagram of an automatic rewinding and cutting integrated machine for disposable artificial nose wetted paper proposed in this invention. Figure 5 This is a schematic diagram of part of the feeding mechanism in an automatic rewinding and cutting integrated machine for disposable artificial nose wetted paper proposed in this invention. Figure 6 This is a schematic diagram of the winding and feeding mechanism and the glue dispensing mechanism in an automatic rewinding and cutting integrated machine for disposable artificial nose wetted paper proposed in this invention. Figure 7 This is a schematic diagram of the winding and unloading mechanism in an automatic rewinding and cutting integrated machine for disposable artificial nose wetted paper proposed in this invention; Figure 8This is a three-dimensional side sectional view of the winding and unloading mechanism in an automatic rewinding and cutting integrated machine for disposable artificial nose wetted paper proposed in this invention. Figure 9 for Figure 8 Enlarged diagram of part A in the middle.

[0020] In the diagram: 1. Frame; 2. Table; 3. Unwinding mechanism; 4. Tensioning mechanism; 5. Feeding mechanism; 6. Rewinding and unloading mechanism; 7. Glue dispensing mechanism; 8. Shearing mechanism; 9. Feeding hopper; 21. Feeding port; 22. Groove; 31. Mounting bracket; 32. Rotary disc; 33. Positioning disc; 34. Motor 1; 41. Transparent plate; 42. Guide bar; 43. Detection piece; 44. Counterweight ball; 45. Guide wheel; 51. Electric linear module; 52. Mounting plate; 53. Finger cylinder; 54. Base; 541. Rectangular groove; 55. Pressure strip; 61. Support; 62. Mounting base; 63. Round tube; 631. Rectangular opening; 64. Cylindrical cylinder; 65. Single-shaft cylinder; 66. Rotating seat; 67. Push-pull rod; 68. Annular block; 69. Shaft; 610. Winding rod; 611. Motor II; 612. Pulley I; 613. Pulley II; 71. Dual-axis cylinder one; 72. Dispensing head; 81. Dual-axis cylinder two; 82. Pneumatic scissors. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described 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.

[0022] Please refer to Figures 1-9 The present invention provides a technical solution: an automatic rewinding and cutting integrated machine for disposable artificial nose wet paper, including a frame 1, a table plate 2 fixedly installed on the top of the frame 1, a tensioning mechanism 4 provided on one side of the frame 1, an unwinding mechanism 3, a feeding mechanism 5, a winding and unloading mechanism 6 and a shearing mechanism 8 installed on the top of the table plate 2, an adhesive dispensing mechanism 7 installed on the winding and unloading mechanism 6, a feeding port 21 opened on the table plate 2, and a feeding hopper 9 connected to the feeding port 21 fixedly installed at the bottom of the table plate 2, the feeding hopper 9 passing through the frame 1 and fixedly connected to the frame 1; The unwinding mechanism 3 is located directly above the tensioning mechanism 4. The unwinding mechanism 3 is used to unwind the wet paper strip. The feeding mechanism 5 is used to clamp the wet paper strip and transport it to the winding and unloading mechanism 6 for winding and wrapping. The glue dispensing mechanism 7 is used to dispense glue onto the wet paper strip. The shearing mechanism 8 is used to cut the wet paper strip. After the wetted paper tape is coated with adhesive and becomes entangled and adhered by the winding part in the winding and unloading mechanism 6, it is pushed by the winding and unloading mechanism 6 into the unloading hopper 9 for discharge.

[0023] The unwinding mechanism 3 includes a mounting frame 31 fixed to the top of the table 2. A positioning plate 33 is rotatably mounted on the front side of the mounting frame 31. A motor 34 is fixedly mounted on the rear side of the mounting frame 31. The output shaft of the motor 34 rotatably passes through the mounting frame 31 and is fixedly connected to the center of the rotating disk 32. The positioning plate 33 is detachably mounted on the side of the rotating disk 32 away from the mounting frame 31.

[0024] Furthermore, when the rotating disk 32 rotates under the drive of motor 34, it drives the positioning disk 33 and the large roll of wetted paper strip held between them to rotate synchronously, realizing active unwinding. The detachable design of the positioning disk 33 facilitates quick replacement of the large roll of wetted paper strip. The center alignment structure of the rotating disk 32 and the positioning disk 33 ensures the dynamic balance of the wetted paper strip roll during rotation, reduces vibration during high-speed unwinding, and improves feeding stability. At the same time, motor 34 adopts a servo motor, and its speed is adjusted in real time by the PLC control system according to the position feedback signal of the counterweight bead 44, realizing automatic matching of unwinding speed and winding speed, and avoiding tensile deformation or breakage of the wetted paper strip due to sudden tension changes.

[0025] The tensioning mechanism 4 includes two transparent plates 41 fixed to the side of the frame 1, two guide bars 42 fixedly installed between the two transparent plates 41, the two guide bars 42 are arranged in a Y shape, a detection element 43 is fixedly installed at the bottom of each of the two guide bars 42, a guide wheel 45 is rotatably installed between the two transparent plates 41, and a counterweight ball 44 is movably installed between the two transparent plates 41, the counterweight ball 44 is located between the two guide bars 42.

[0026] Furthermore, the guide wheel 45 serves as a steering guide element to change the direction of the wetted paper strip, allowing it to smoothly transition from the tensioning area of ​​the counterweight bead 44 in the tensioning mechanism 4 to the feeding mechanism 5. This reduces the frictional resistance and surface scratches of the wetted paper strip during the steering and conveying process, and maintains the smoothness of the wetted paper strip's operation in the tensioning mechanism 4.

[0027] Furthermore, the two Y-shaped guide bars 42 form a guide channel that is wider at the top and narrower at the bottom. This guides the counterweight bead 44 to slide smoothly along its extension direction and restricts its horizontal deviation, ensuring that it can only move up and down. This accurately converts gravity into a constant tension force on the wetted paper strip. The mass of the counterweight bead 44 is selected according to the material and thickness of the wetted paper strip. By replacing the counterweight bead 44, the tension force can be quickly adjusted to meet the production needs of different specifications of wetted paper strip. At the same time, the counterweight bead 44 is located between two transparent plates 41. Operators can observe the movement status of the counterweight bead 44 and the operation of the wetted paper strip in real time through the transparent plates 41, which facilitates equipment debugging and troubleshooting.

[0028] The discharge port 21 has a slot 22 on the side near the tensioning mechanism 4, and the two side walls of the slot 22 are coplanar with the inner side surfaces of the two transparent plates 41 respectively. The feeding mechanism 5 includes an electric linear module 51 fixed on the platform 2. An mounting plate 52 is fixedly installed on the slider of the electric linear module 51. The mounting plate 52 is slidably installed on the top of the platform 2. Two finger cylinders 53 are fixedly installed on the mounting plate 52. The two finger cylinders 53 are fixedly installed on the gripper below and on the gripper above. The two finger cylinders 53 are fixedly installed on the gripper above. A rectangular groove 541 adapted to the pressure strip 55 is opened on the top of the base 54.

[0029] Furthermore, the slot 22 provides clearance for the wetted paper strip leading from the tensioning mechanism 4, preventing friction and scratches between the wetted paper strip and the edge of the table 2 when it enters the clamping area of ​​the feeding mechanism 5; the two finger cylinders 53 synchronously drive the base 54 and the pressure bar 55 to move towards each other, and the interlocking structure of the rectangular slot 541 and the pressure bar 55 forms multi-point pressing when clamping the wetted paper strip, increasing the clamping friction and preventing the wetted paper strip from slipping during high-speed feeding, while ensuring uniform clamping force and avoiding localized damage to the wetted paper strip. The electric linear module 51 is driven by a servo motor, and its stroke and movement speed are preset by the PLC control system to ensure that the end of the wetted paper strip can be accurately inserted into the predetermined depth in the rectangular opening 631 each time it is fed, so as to achieve precise control of the feeding position. When the base 54 and the pressure bar 55 clamp the wetted paper strip, the gap between the bottom surface of the rectangular groove 541 and the lower surface of the pressure bar 55 is equal to the thickness of the wetted paper strip, so that the wetted paper strip remains flat in the clamping state and avoids folding or wrinkling into the winding area.

[0030] The winding and unloading mechanism 6 includes a support 61 fixed to the top of the platform 2. A circular tube 63 is fixedly installed through the support 61. A rectangular opening 631 is opened on the circular tube 63. A cylinder 64 is rotatably installed inside the circular tube 63. A shaft 69 is fixedly installed at the center of one end of the cylinder 64 near the rectangular opening 631. Two winding rods 610 are fixedly installed on the side of the shaft 69 away from the cylinder 64. The end of the cylinder 64 away from the shaft 69 extends to the outside of the circular tube 63 and is fixedly installed with a second pulley 613. A second motor 611 is fixedly installed through the support 61. A first pulley 612 is fixedly installed on the output shaft of the second motor 611. A synchronous belt is sleeved on the second motor 611 and the first pulley 612.

[0031] Furthermore, the rectangular opening 631 provides a radial entrance for the feeding mechanism 5 to clamp the end of the wetted paper strip into the round tube 63. Its width is adapted to the width of the wetted paper strip to ensure that the wetted paper strip enters smoothly without folding. The two winding rods 610 are symmetrically distributed on both sides of the shaft 69 to form an open winding skeleton, which not only facilitates the fixation of the end of the wetted paper strip during the initial winding, but also provides an axial exit channel for the subsequent ring block 68 to push out the finished roll, avoiding the finished product from getting stuck.

[0032] A mounting base 62 is fixedly installed on the side of the support 61 away from the motor 611. A single-shaft cylinder 65 is fixedly installed on the side of the mounting base 62 away from the support 61. A rotating seat 66 is rotatably installed on the piston rod of the single-shaft cylinder 65. Two push-pull rods 67 are fixedly installed on the side of the rotating seat 66 away from the single-shaft cylinder 65. Both push-pull rods 67 pass through the cylinder 64 and are slidably connected to the cylinder 64. The same annular block 68 is fixedly installed on the end of the two push-pull rods 67 away from the rotating seat 66. The annular block 68 is movably sleeved on the shaft 69.

[0033] Furthermore, the rotating connection structure between the rotating seat 66 and the piston rod of the single-axis cylinder 65 allows the piston rod of the single-axis cylinder 65 to rotate without following the rotation of the push-pull rod 67 with the cylinder 64, thus avoiding the cylinder piston bearing torque. The annular block 68 is slidably sleeved on the shaft 69, and its inner diameter is clearance-fitted with the outer diameter of the shaft 69. When the finished small roll is pushed out, the annular end face of the annular block 68 pushes the end of the small roll evenly, so that it slides smoothly out along the two winding rods 610, preventing the small roll from tilting or getting stuck on the winding rods 610.

[0034] The dispensing mechanism 7 includes a dual-axis cylinder 71 fixed on a support 61, and a dispensing head 72 is fixedly mounted on the piston rod of the dual-axis cylinder 71.

[0035] Furthermore, the dual-axis cylinder 71 provides vertical linear motion, driving the dispensing head 72 to precisely descend to the preset dispensing position on the surface of the wetted paper strip on the winding rod 610. Its dual-axis guiding structure ensures that the dispensing head 72 does not deflect during the lifting and lowering process, guaranteeing the repeatability of the dispensing position. The glue output of the dispensing head 72 is linked to the rotation pause signal of the winding rod 610 to achieve fixed-point and quantitative glue application, avoiding glue waste or uneven coating. The dispensing head 72 is connected to an external glue supply device through a pipeline. The dispensing pressure and time of the glue supply device are preset by the PLC control system, which automatically adjusts the single dispensing amount according to the material of the wetted paper strip and the diameter of the finished roll, ensuring that the glue coating amount always matches the number of winding layers and achieves a good bonding effect. After the dispensing head 72 descends to the position, the vertical distance between its glue outlet and the surface of the wetted paper strip on the winding rod 610 remains constant. This distance is determined by the stroke limit of the dual-axis cylinder 71, ensuring the high consistency of the dispensing position.

[0036] The shearing mechanism 8 includes a dual-axis cylinder 81 fixed to the top of the platform 2, and a pneumatic shear 82 is fixedly mounted on the piston rod of the dual-axis cylinder 81.

[0037] Furthermore, the dual-axis cylinder 81 pushes the pneumatic shears 82 forward onto the path of the wetted paper strip. Its dual-axis guidance ensures that the shear blade is parallel to the width direction of the wetted paper strip, guaranteeing a clean cut. The shearing action of the pneumatic shears 82 is synchronized with the clamping action of the feeding mechanism 5 on the wetted paper strip; that is, shearing is performed only after clamping, preventing the end of the wetted paper strip from springing back and shifting after cutting, thus providing a neat end for the next feeding. The shearing position of the pneumatic shears 82 is located between the clamping point of the feeding mechanism 5 and the winding unwinding machine. Between the rectangular openings 631 of the structure 6, the cut end of the wetted paper strip is always kept within the clamping range of the base 54 and the pressure bar 55, so that the electric linear module 51 can directly drive the clamped end of the wetted paper strip to feed the material in the next cycle without the need for manual paper feeding; the stroke of the dual-axis cylinder 81 is controlled by the limiting device to ensure that when the pneumatic scissors 82 advances to the cutting position, the scissor blade is completely aligned with the width direction of the wetted paper strip, avoiding burrs on the cut or inconsistent width of the wetted paper strip caused by skewed cutting.

[0038] The positioning plate 33 is detachably connected to the rotating plate 32 by bolts or quick-release buckles. Both the rotating plate 32 and the positioning plate 33 are provided with anti-slip rubber pads on the sides that are close to each other.

[0039] Furthermore, the anti-slip rubber gasket undergoes elastic deformation when the positioning plate 33 and the rotating plate 32 clamp the wetted paper strip core, increasing the friction of the contact surface and effectively preventing the large roll of wetted paper strip from sliding relative to the rotating plate 32 due to inertia during unwinding, ensuring precise correspondence between the unwinding linear speed and the speed of the motor 34; the quick-release buckle method enables rapid loading and unloading of the wetted paper strip roll, reducing downtime for material changes and improving the continuous operation efficiency of the equipment.

[0040] The two detection elements 43 are through-beam photoelectric sensors. The distance between the two detection elements 43 is greater than the diameter of the counterweight bead 44. The counterweight bead 44 is located between the two guide bars 42 and can slide up and down along the extension direction of the guide bars 42. The counterweight bead 44 is used to press down the wetted paper strip by its own weight during the unwinding process to keep the wetted paper strip taut.

[0041] Furthermore, the distance between the two through-beam photoelectric sensors is greater than the diameter of the counterweight bead 44, ensuring that the counterweight bead 44 simultaneously blocks the light path of both detection elements 43 when it descends to its final position, thus preventing false triggering of the detection elements 43 due to positional deviation of the counterweight bead 44. The counterweight bead 44 presses down on the wetted paper strip under its own weight, and its weight is selected according to the tension requirements of the wetted paper strip material. By replacing the counterweight bead 44 with different weights, the tension can be quickly adjusted without changing the equipment structure, improving adaptability to different specifications of wetted paper strips. The detection of the two through-beam photoelectric detection elements 43... The signals are connected to two input ports of the PLC control system. The PLC control system only determines that the counterweight bead 44 has descended to the correct position when both detection elements 43 are blocked at the same time. When only one detection element 43 is blocked, the current unwinding state is maintained to avoid unwinding errors caused by a single triggering of the detection element 43 due to slight shaking of the counterweight bead 44 or unevenness of the wetted paper strip surface. At the same time, a buffer pad is provided at the bottom of the guide bar 42. When the counterweight bead 44 descends to the lowest position, it contacts the buffer pad to avoid rigid collision between the counterweight bead 44 and the bottom of the guide bar 42, which would damage the detection element 43.

[0042] In this embodiment: After the equipment is started, the large roll of wetted paper strip is first installed between the rotating disk 32 and the positioning disk 33, and clamped and positioned by anti-slip rubber washers to complete the quick clamping of the wetted paper strip roll. Then, the end of the wetted paper strip is successively passed under the guide wheel 45 and between the two transparent plates 41 of the tensioning mechanism 4, so that the wetted paper strip catches the counterweight bead 44, and the wetted paper strip is pre-placed between the base 54 and the pressure strip 55 of the feeding mechanism 5. Next, the electric linear module 51 drives the two finger cylinders 53, the base 54, and the pressure bar 55 to move synchronously to the wetted paper strip. The two finger cylinders 53 drive the base 54 and the pressure bar 55 to move towards each other. The wetted paper strip is clamped by the interlocking structure of the rectangular groove 541 and the pressure bar 55, and its end is exposed. Then, the electric linear module 51 drives the whole unit to move, and the end of the wetted paper strip is accurately inserted into the rectangular opening 631 of the round tube 63, so that it is between the two winding rods 610, completing the fully automatic feeding action. No manual intervention is required in the whole process, avoiding contact contamination.

[0043] During unwinding, motor 34 drives rotating disk 32 and positioning disk 33 to actively rotate and unwind the large roll of wetted paper strip. After being drawn out from unwinding mechanism 3, the wetted paper strip passes through tensioning mechanism 4 and catches counterweight bead 44. Counterweight bead 44 applies continuous downward pressure on the wetted paper strip using its own weight, directly converting gravitational potential energy into constant tension force, thus achieving passive constant tension control of the wetted paper strip. At the same time, two Y-shaped guide bars 42 restrict the counterweight bead 44 to slide only in the vertical direction, ensuring a constant tension direction. The counterweight bead 44 and two through-beam photoelectric detectors 43 form a closed-loop feedback circuit: when rewinding is paused, causing the wetted paper strip to slack, the counterweight bead 44 slides down to block the light path of the two detectors 43, and motor 34 immediately stops unwinding; when rewinding pulls the wetted paper strip, causing the counterweight bead 44 to move upward and the light path of the detectors 43 to be re-connected, motor 34 immediately restarts unwinding. Through this gravity-photoelectric feedback mechanism, the unwinding and rewinding speeds are automatically matched, forming multi-segment tension gradient control, which effectively prevents paper breakage and tensile deformation of the wetted paper strip.

[0044] After the material is threaded, motor 611 drives cylinder 64 to rotate via pulley 612, synchronous belt, and pulley 613. Cylinder 64 drives two winding rods 610 to rotate via shaft 69, continuously winding the wetted paper strip onto the winding rods 610. At this time, base 54 and pressure bar 55 release their grip on the wetted paper strip. After the winding rods 610 have completed the preset number of turns, the PLC control system sends a command to stop motor 611 from rotating. Dual-axis cylinder 71 drives dispensing head 72 to precisely descend to the preset dispensing position on the surface of the wetted paper strip on the winding rods 610. The glue output of dispensing head 72 is linked with the rotation stop signal of winding rod 610 to achieve fixed-point and quantitative glue application. After the adhesive is applied, the base 54 and the pressure strip 55 clamp the wetted paper strip again. The dual-axis cylinder 81 pushes the pneumatic scissors 82 forward to the path of the wetted paper strip to perform the cutting operation. The cutting action and the clamping action are linked in sequence, that is, the cutting is performed while the strip is clamped to prevent the end of the wetted paper strip from springing back and shifting after cutting. After cutting, the winding rod 610 continues to rotate, rewinding the cut portion of the wetted paper strip to form a small roll of wetted paper strip. After the end of the wetted paper strip with adhesive enters the round tube 63, it is radially constrained by the inner wall of the tube 63 and is tightly pressed against the outer surface of the formed small roll, so that the adhesive is evenly applied and firmly bonded, completing the sealing process of the finished small roll.

[0045] After winding is completed, the winding rod 610 stops rotating, the single-axis cylinder 65 extends, and drives the annular block 68 to slide axially along the shaft 69 through the rotating seat 66 and two push-pull rods 67. The annular end face of the annular block 68 pushes the end of the finished small roll evenly, smoothly pushing out the wetted paper strip small roll wound on the two winding rods 610, and continues to push it out from the port of the round tube 63. The finished small roll falls into the discharge hopper 9 through the discharge port 21 and is discharged, realizing fully automatic unloading without manual material handling, reducing the risk of contamination.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic rewinding and cutting machine for disposable artificial nose wettable paper, comprising a frame (1), wherein a table plate (2) is fixedly installed on the top of the frame (1), characterized in that: The frame (1) is provided with a tensioning mechanism (4) on one side. The top of the platform (2) is provided with an unwinding mechanism (3), a feeding mechanism (5), a winding and unloading mechanism (6) and a shearing mechanism (8). The winding and unloading mechanism (6) is provided with a glue dispensing mechanism (7). The platform (2) is provided with a discharge port (21). The bottom of the platform (2) is fixedly provided with a discharge hopper (9) that communicates with the discharge port (21). The discharge hopper (9) passes through the frame (1) and is fixedly connected to the frame (1). The unwinding mechanism (3) is located directly above the tensioning mechanism (4). The unwinding mechanism (3) is used to unwind the wetted paper strip. The feeding mechanism (5) is used to clamp the wetted paper strip and transport it to the winding and unloading mechanism (6) for winding and wrapping. The glue dispensing mechanism (7) is used to dispense glue onto the wetted paper strip. The shearing mechanism (8) is used to cut the wetted paper strip. After the wetted paper tape is coated with glue and is wrapped and adhered by the winding part in the winding and unloading mechanism (6), it is pushed by the winding and unloading mechanism (6) into the unloading hopper (9) for discharge; The tensioning mechanism (4) includes two transparent plates (41) fixed to the side of the frame (1), two guide bars (42) fixedly installed between the two transparent plates (41), the two guide bars (42) are arranged in a Y shape, a detection element (43) is fixedly installed at the bottom of each of the two guide bars (42), a guide wheel (45) is rotatably installed between the two transparent plates (41), and a counterweight bead (44) is movably installed between the two transparent plates (41), the counterweight bead (44) is located between the two guide bars (42); The two detection elements (43) are through-beam photoelectric sensors. The distance between the two detection elements (43) is greater than the diameter of the counterweight bead (44). The counterweight bead (44) is located between the two guide strips (42) and can slide up and down along the extension direction of the guide strips (42). The counterweight bead (44) is used to press down the wetted paper strip by its own weight during the unwinding process to keep the wetted paper strip taut.

2. The automatic rewinding and cutting integrated machine for disposable artificial nose wettable paper according to claim 1, characterized in that: The unwinding mechanism (3) includes a mounting frame (31) fixed to the top of the platform (2). A positioning plate (33) is rotatably mounted on the front side of the mounting frame (31). A motor (34) is fixedly mounted on the rear side of the mounting frame (31). The output shaft of the motor (34) rotatably passes through the mounting frame (31) and is fixedly connected to the center of the rotating disk (32). The positioning plate (33) is detachably mounted on the side of the rotating disk (32) away from the mounting frame (31).

3. The automatic rewinding and cutting machine for disposable artificial nose wettable paper according to claim 1, characterized in that: The discharge port (21) has a slot (22) on the side near the tensioning mechanism (4), and the two side walls of the slot (22) are coplanar with the inner side surfaces of the two transparent plates (41); The feeding mechanism (5) includes an electric linear module (51) fixed on the platform (2). An mounting plate (52) is fixedly installed on the slider of the electric linear module (51). The mounting plate (52) is slidably installed on the top of the platform (2). Two finger cylinders (53) are fixedly installed on the mounting plate (52). The two finger cylinders (53) are fixedly installed on the gripper below and on the gripper above. The two finger cylinders (53) are fixedly installed on the gripper above. A rectangular groove (541) adapted to the pressure strip (55) is opened on the top of the base (54).

4. The automatic rewinding and cutting integrated machine for disposable artificial nose wettable paper according to claim 1, characterized in that: The winding and unloading mechanism (6) includes a support (61) fixed to the top of the platform (2). A round tube (63) is fixedly installed through the support (61). A rectangular opening (631) is opened on the round tube (63). A cylinder (64) is rotatably installed inside the round tube (63). A shaft (69) is fixedly installed at the center of one end of the cylinder (64) near the rectangular opening (631). Two winding rods (610) are fixedly installed on the side of the shaft (69) away from the cylinder (64). A pulley (613) is fixedly installed at the end of the cylinder (64) away from the shaft (69). A motor (611) is fixedly installed through the support (61). A pulley (612) is fixedly installed on the output shaft of the motor (611). A synchronous belt is fitted on the motor (611) and the pulley (612).

5. The automatic rewinding and cutting integrated machine for disposable artificial nose wettable paper according to claim 4, characterized in that: A mounting base (62) is fixedly installed on the side of the support (61) away from the motor (611). A single-shaft cylinder (65) is fixedly installed on the side of the mounting base (62) away from the support (61). A rotating seat (66) is rotatably installed on the piston rod of the single-shaft cylinder (65). Two push-pull rods (67) are fixedly installed on the side of the rotating seat (66) away from the single-shaft cylinder (65). Both push-pull rods (67) pass through the cylinder (64) and are slidably connected to the cylinder (64). The same annular block (68) is fixedly installed on the end of the two push-pull rods (67) away from the rotating seat (66). The annular block (68) is movably sleeved on the shaft (69).

6. The automatic rewinding and cutting integrated machine for disposable artificial nose wettable paper according to claim 4, characterized in that: The dispensing mechanism (7) includes a biaxial cylinder (71) fixed on a support (61), and a dispensing head (72) is fixedly installed on the piston rod of the biaxial cylinder (71).

7. The automatic rewinding and cutting machine for disposable artificial nose wettable paper according to claim 1, characterized in that: The shearing mechanism (8) includes a dual-axis cylinder (81) fixed on the top of the platform (2), and a pneumatic shear (82) is fixedly installed on the piston rod of the dual-axis cylinder (81).

8. The automatic rewinding and cutting machine for disposable artificial nose wettable paper according to claim 2, characterized in that: The positioning plate (33) is detachably connected to the rotating plate (32) by bolts or quick-release buckles. Both the rotating plate (32) and the positioning plate (33) are provided with anti-slip rubber pads on the side that is close to each other.

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