A positioning mechanism for cutting diapers

Abstract

The present invention discloses a positioning mechanism for cutting diapers. The present invention includes a frame, a single-chip microcomputer is fixedly mounted on the end face of the frame, a cloth feeding mechanism is mounted at the feed port of the frame, the rear end of the frame is connected to a tensioning frame via two symmetrically arranged tensioning adjustment assemblies, a cloth discharging mechanism is mounted between the inner surfaces of the tensioning frame, a waste cloth roller driven by a winding motor is rotatably connected to the position in front of the inner surface of the frame and adjacent to the cloth discharging mechanism, and a screw distance adjustment module is mounted in the middle of the frame. The present invention enables the device to efficiently complete the non-woven fabric positioning operation when cutting diapers through the arrangement of the cloth feeding mechanism, the cloth discharging mechanism and the longitudinal cloth pulling mechanism, and when the device performs the positioning operation on the non-woven fabric, the fabric can be simultaneously tensioned in the longitudinal and transverse directions, and the tensioning effect is achieved, thereby effectively improving the cutting efficiency and cutting accuracy of the diaper blank.

Description

Technical Field

[0001] The present invention relates to the technical field of diaper processing, in particular to a positioning mechanism for cutting diapers. Background Art

[0002] As the market continues to expand and the number of users continues to increase, people are increasingly in need of different types of diapers, and diaper production requires diapers to be cut.

[0003] In the prior art, there have been many styles of diaper cutting devices. For example, the patent document with publication number CN109049081A discloses a diaper cutting device that is convenient for cutting diapers into fixed shapes. The device is provided with a horizontal block, the upper surface of the horizontal block is a serrated structure, and the gear rotation drives the horizontal block to form a left and right sliding structure at the bottom of the horizontal plate. The left and right movement of the horizontal block drives the first cutting blade and the second cutting blade to move left and right, thereby adjusting the first cutting blade and the second cutting blade to any position in the horizontal direction of the diaper. For example, the patent document with publication number CN111558960A discloses a fast diaper external cutting fixed device. The device cuts diapers while fixing the diaper raw materials by arranging a blade on a pressing plate. Compared with the prior art, the cutting efficiency of the diaper raw materials is improved. Cutting diapers by a blade of a preset shape can improve the cutting quality of the diaper raw materials. However, the above-mentioned device cannot synchronously tension the fabric in the longitudinal and transverse directions when cutting the diaper processing fabric, so the accuracy of the fabric cutting is low, and the existing cutting positioning device cannot effectively separate the cut blanks and the cut waste materials and effectively recycle the waste materials. Based on this, the present invention provides a positioning mechanism for diaper cutting to solve the problems raised in the above-mentioned background technology. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a positioning mechanism for cutting diapers. The present invention, through the arrangement of a cloth feeding mechanism, a cloth discharging mechanism and a longitudinal cloth pulling mechanism, enables the device to efficiently complete the non-woven fabric positioning operation when cutting diapers. When the device positions the non-woven fabric, it can synchronously tension the fabric in the longitudinal and transverse directions. By achieving the tensioning effect, the cutting efficiency and cutting accuracy of the diaper blank are effectively improved.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a technical solution adopted by a positioning mechanism for cutting diapers is as follows: it includes a frame, a single-chip microcomputer is fixedly installed on the end face of the frame, a cloth feeding mechanism is installed at the position of the frame feed port, the tail end of the frame is connected to the tensioning frame through two symmetrically arranged tensioning adjustment components, a cloth discharging mechanism is installed between the inner surfaces of the tensioning frame, a waste cloth winding roller driven by a winding motor is rotatably connected in front of the inner surface of the frame and adjacent to the cloth discharging mechanism, a screw distance adjustment module is installed in the middle of the frame, and the peripheral side of the screw distance adjustment module is transmitted There are two symmetrically arranged longitudinal cloth-pulling mechanisms with adjustable spacing, and a conveyor frame is installed between the inner surfaces of the frame and at the position corresponding to the two longitudinal cloth-pulling mechanisms. A conveyor module is installed on the inner wall of the conveyor frame, and the peripheral side of the conveyor module is transmission-connected with an annular cloth-discharging belt, and a group of regularly distributed forming grooves are fixedly provided inside the annular cloth-discharging belt. A cutting mechanism cooperating with the forming grooves is fixedly installed on the top of the frame, and a drum pressure pump is fixedly installed on the side of the frame. The port of the drum pressure pump is fixedly connected to a cloth pressure pipe, and the ports of the cloth-in mechanism and the cloth-out mechanism are both fixedly connected to the cloth pressure pipe.

[0008] As a preferred solution, the cloth feeding mechanism and the cloth discharging mechanism each include a clamping roller motor, a pressure dividing tube and two conveying clamping rollers, the surfaces of the clamping roller motor and the pressure dividing tube at the cloth feeding mechanism are fixedly connected to the frame, both ends of the two conveying clamping rollers at the cloth feeding mechanism are rotatably connected to the frame, the surfaces of the clamping roller motor and the pressure dividing tube at the cloth discharging mechanism are fixedly connected to the tensioning frame, both ends of the two conveying clamping rollers at the cloth discharging mechanism are rotatably connected to the tensioning frame, the tail ends of the two conveying clamping rollers are fixedly installed with linkage gears, the two linkage gears mesh with each other, the output shaft end of the clamping roller motor is fixedly connected to one of the conveying clamping rollers, an air cavity is fixedly opened inside the conveying clamping roller, the port of the air cavity is rotatably connected to the pressure dividing tube through a rotary joint, an air pressure probe electrically connected to the single-chip microcomputer is fixedly installed inside the pressure dividing tube, the surface of the pressure dividing tube is fixedly connected to the cloth pressure tube, and a clamping bag connected to the air cavity is fixedly installed on the peripheral side of the conveying clamping roller.

[0009] As a preferred solution, a solenoid valve is fixedly installed at the connection point between the pressure-dividing tube and the cloth pressure tube, the clamping bag is made of silicone, and the peripheral side surface of the clamping bag is fixedly provided with friction lines. A group of regularly distributed air holes connected to the clamping bag are opened inside the conveying roller, and a conveying gap is fixedly provided between the relative surfaces of the two conveying rollers for the non-woven fabric for diaper processing to pass through.

[0010] As a preferred solution, the center line of the conveying gap at the cloth feeding mechanism is flush with the top surface of the annular cloth outlet belt, and the conveying gap at the cloth outlet mechanism is arranged between the annular cloth outlet belt and the waste cloth roller.

[0011] As a preferred solution, the tensioning adjustment assembly includes a pressure-adjusting frame, an active pressure seat and a group of horizontally arranged pressure-adjusting push rods. The peripheral side surfaces of a group of the pressure-adjusting push rods are fixedly connected to the frame, the movable ends of a group of the pressure-adjusting push rods are fixedly connected to the active pressure seat, the back of the pressure-adjusting frame is fixedly connected to the tensioning frame, and two horizontally arranged limiting guide rods are installed on the end surface of the active pressure seat. The peripheral side surfaces of the two limiting guide rods are slidably connected to the pressure-adjusting frame, and a pressure sensor electrically connected to the single-chip microcomputer is fixedly installed on a surface of the pressure-adjusting frame relative to the active pressure seat.

[0012] As a preferred solution, the longitudinal cloth pulling mechanism includes a moving platform and a cloth pulling platform respectively. The inner wall of the moving platform is transmission-connected to the screw pitch adjustment module. A group of horizontally arranged pulling columns are installed on the side of the moving platform. The peripheral side surfaces of a group of the pulling columns are slidingly connected to the cloth pulling platform. The peripheral side surfaces of the pulling columns and the positions corresponding to both sides of the moving platform are sleeved with limit springs. A tension sensor is installed between the relative surfaces of the cloth pulling platform and the moving platform. The port of the tension sensor is electrically connected to the single-chip microcomputer. A group of vertically arranged pressure push rods are installed on the inner wall of the cloth pulling platform. The surface of the cloth pulling platform is fixedly connected to the cloth clamping platform through a group of pressure push rods. Transmission modules are installed inside the cloth pulling platform and the cloth clamping platform. The peripheral side surfaces of the two transmission modules are transmission-connected to the annular conveying clamping belts.

[0013] As a preferred solution, the screw pitch adjustment module includes a driving motor, a transmission screw and two positioning guide rods, both ends of the two positioning guide rods are fixedly connected to the frame, both ends of the transmission screw are rotatably connected to the frame, the output shaft end of the driving motor is fixedly connected to the transmission screw, and the circumferential side surface of the transmission screw is symmetrically provided with a forward threaded portion and a reverse threaded portion, and the circumferential side surfaces of the forward threaded portion and the reverse threaded portion are respectively transmission-connected to the moving platforms in the two longitudinal cloth-pulling mechanisms, and the inner walls of the moving platforms are respectively slidably connected to the two positioning guide rods.

[0014] As a preferred solution, the cross-sections of the pulling column and the limiting guide rod are both T-shaped, the inner walls of the cloth pulling table and the cloth clamping table are fixedly installed with clamps that fit with the annular conveyor belt, and the transmission module includes a transmission motor and two transmission guide wheels, the output shaft end of the transmission motor is connected to one of the transmission guide wheels, and the circumferential side surfaces of the two transmission guide wheels are connected to the annular conveyor belt.

[0015] As a preferred solution, the cutting mechanism includes a group of vertically arranged cutting push rods and a knife seat, a group of the cutting push rods have their peripheral sides fixedly connected to the frame, a group of the cutting push rods have their bottom ends fixedly connected to the knife seat, and a cutting ring knife is fixedly installed on the bottom surface of the knife seat, and the shape of the cutting ring knife is adapted to the shape of the forming groove.

[0016] As a preferred solution, the conveying module includes a conveying motor and two conveying rollers, the surface of the conveying motor is fixedly connected to the conveying frame, both ends of the two conveying rollers are rotatably connected to the conveying frame, the circumferential side surfaces of the two conveying rollers are transmission-connected to the annular cloth output belt, and the output shaft end of the conveying motor is fixedly connected to one of the conveying rollers.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a positioning mechanism for cutting diapers, which has the following beneficial effects:

[0019] 1. The present invention provides a cloth feeding mechanism, a cloth discharging mechanism and a longitudinal cloth pulling mechanism, so that the device can efficiently complete the non-woven fabric positioning operation when cutting diapers. When positioning the non-woven fabric, the device can simultaneously tension the fabric in the longitudinal and transverse directions. By achieving the tensioning effect, the cutting efficiency and cutting accuracy of the diaper blank are effectively improved. By achieving the above-mentioned tensioning effect, the waste of blanks caused by fabric dislocation during the diaper cutting process can be effectively avoided.

[0020] 2. The present invention provides an annular cloth outlet belt and a waste cloth roller, so that the device can efficiently complete the rapid separation of the cut diaper blanks and the cut waste cloth during the diaper cutting process. By achieving the above-mentioned rapid separation effect, the versatility of the mechanism in diaper cutting is effectively improved. Moreover, by providing the waste cloth roller, the effective recycling of the cut waste can be achieved, thereby effectively improving the process integrity and process integrity of the mechanism during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a positioning mechanism for cutting diapers according to the present invention;

[0022] Figure 2 For the present invention Figure 1 Structural diagram from another perspective;

[0023] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0024] Figure 4 For the present invention Figure 2 Schematic diagram of the local enlarged structure at B in the middle;

[0025] Figure 5 For the present invention Figure 2 Schematic diagram of the cross-section structure;

[0026] Figure 6 It is a structural schematic diagram of the tensioning frame and the annular cloth outlet belt of the present invention;

[0027] Figure 7 This is a schematic diagram of the cutting push rod and cutting ring knife structure of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the annular conveying belt and the pressure push rod of the present invention;

[0029] Figure 9 For the present invention Figure 8 Schematic diagram of the structure from another angle.

[0030] Figure: 1. Frame; 2. Single-chip microcomputer; 3. Fabric feed mechanism; 4. Tensioning frame; 5. Fabric discharge mechanism; 6. Winding motor; 7. Waste fabric roller; 8. Screw pitch adjustment module; 9. Conveyor frame; 10. Conveyor module; 11. Annular fabric discharge belt; 12. Forming trough; 13. Drum pressure pump; 14. Fabric pressure pipe; 15. Pinch roller motor; 16. Pressure divider; 17. Conveyor pinch roller; 18. Air pressure probe; 19. Clamp bag. 20. Solenoid valve; 21. Active pressure seat; 22. Pressure regulating push rod; 23. Limit guide rod; 24. Pressure sensor; 25. Moving table; 26. Cloth pulling table; 27. Pull column; 28. Limit spring; 29. ​​Tension sensor; 30. Pressure push rod; 31. Cloth clamping table; 32. Transmission module; 33. Annular conveyor belt; 34. Cutting push rod; 35. Knife holder; 36. Cutting ring knife; 37. Pressure regulating frame. DETAILED DESCRIPTION

[0031] The present invention will be further described and illustrated below with reference to specific embodiments and accompanying drawings:

[0032] See also Figure 1-9 The present invention provides a positioning mechanism for cutting diapers, and the technical solution adopted is as follows: it includes a frame 1, a single-chip microcomputer 2 is fixedly mounted on the end surface of the frame 1, a cloth feeding mechanism 3 is mounted at the feed port of the frame 1, the tail end of the frame 1 is connected to a tensioning frame 4 through two symmetrically arranged tensioning adjustment assemblies, a cloth discharging mechanism 5 is mounted between the inner surfaces of the tensioning frame 4, a waste cloth reel 7 driven by a reeling motor 6 is rotatably connected to the position in front of the inner surface of the frame 1 and adjacent to the cloth discharging mechanism 5, a drum pressure pump 13 is fixedly mounted on the side of the frame 1, a port of the drum pressure pump 13 is fixedly connected to a cloth pressure pipe 14, and the ports of the cloth feeding mechanism 3 and the cloth discharging mechanism 5 are both fixedly connected to the cloth pressure pipe 14;

[0033] The tensioning adjustment assembly includes a pressure regulating frame 37, an active pressure seat 21 and a group of horizontally arranged pressure regulating push rods 22. The peripheral side surfaces of a group of pressure regulating push rods 22 are fixedly connected to the frame 1, and the movable ends of a group of pressure regulating push rods 22 are fixedly connected to the active pressure seat 21. The back of the pressure regulating frame 37 is fixedly connected to the tensioning frame 4. Two horizontally arranged limit guide rods 23 are installed on the end surface of the active pressure seat 21. The peripheral side surfaces of the two limit guide rods 23 are slidably connected to the pressure regulating frame 37. A pressure sensor 24 electrically connected to the single-chip computer 2 is fixedly installed on one surface of the pressure regulating frame 37 opposite to the active pressure seat 21. The model of the pressure sensor 24 is RP-S40-ST.

[0034] When the non-woven fabric for diaper processing is conveyed between the cloth feeding mechanism 3 and the cloth discharging mechanism 5, the single chip microcomputer 2 can adjust the distance difference between the active pressure seat 21 and the pressure regulating frame 37 by controlling a group of pressure regulating push rods 22, and then adjust the pressing degree of the active pressure seat 21 on the pressure regulating frame 37. The pressure sensor 24 is used to monitor the pressure value of the active pressure seat 21 on the pressure regulating frame 37 in real time. When the pressure sensor 24 is working, the monitored data is fed back to the single chip microcomputer 2 in real time. The single chip microcomputer 2 assists in monitoring the tension and tension of the non-woven fabric for diaper processing in the axial direction based on the data feedback of the pressure sensor 24. The larger the feedback value of the pressure sensor 24, the higher the tension and tension of the non-woven fabric for diaper processing in the axial direction. When working, the control auxiliary setting of the pressure regulating push rod 22 is used to maintain the tension and tension of the non-woven fabric for diaper processing in the axial direction within the set safety range value;

[0035] Through the arrangement of the cloth feeding mechanism 3 and the cloth discharging mechanism 5, the non-woven fabric for cutting and forming diapers can be effectively transported;

[0036] The cloth feeding mechanism 3 and the cloth discharging mechanism 5 each include a pinch roller motor 15, a voltage dividing tube 16 and two conveying pinch rollers 17. The surfaces of the pinch roller motor 15 and the voltage dividing tube 16 at the cloth feeding mechanism 3 are fixedly connected to the frame 1. Both ends of the two conveying pinch rollers 17 at the cloth feeding mechanism 3 are rotatably connected to the frame 1. The surfaces of the pinch roller motor 15 and the voltage dividing tube 16 at the cloth discharging mechanism 5 are fixedly connected to the tensioning frame 4. Both ends of the two conveying pinch rollers 17 at the cloth discharging mechanism 5 are rotatably connected to the tensioning frame 4.

[0037] The tail ends of the two conveying rollers 17 are fixedly mounted with linkage gears, which mesh with each other. The output shaft end of the roller motor 15 is fixedly connected to one of the conveying rollers 17. Through the arrangement of the two linkage gears, the two conveying rollers 17 rotate in opposite directions but at the same speed, thereby effectively clamping and conveying the non-woven fabrics for diaper processing.

[0038] An air cavity is fixedly provided inside the conveying nip roller 17, and the port of the air cavity is rotatably connected to the pressure dividing tube 16 through a rotary joint. An air pressure probe 18 electrically connected to the single-chip microcomputer 2 is fixedly installed inside the pressure dividing tube 16, and the surface of the pressure dividing tube 16 is fixedly connected to the cloth pressure tube 14. A solenoid valve 20 is fixedly provided at the connection point between the pressure dividing tube 16 and the cloth pressure tube 14. A clamping bag 19 connected to the air cavity is fixedly installed on the peripheral side of the conveying nip roller 17. The clamping bag 19 is made of silicone material, and the peripheral side of the clamping bag 19 is fixedly provided with friction lines. A group of regularly distributed air holes connected to the clamping bag 19 are provided inside the conveying nip roller 17, and a conveying gap for the non-woven fabric for diaper processing is fixedly provided between the opposing surfaces of the two conveying nip rollers 17. The center line of the conveying gap at the cloth feeding mechanism 3 is flush with the top surface of the annular cloth discharge belt 11, and the conveying gap at the cloth discharge mechanism 5 is provided between the annular cloth discharge belt 11 and the waste cloth reel 7;

[0039] By setting the position of the conveying gap at the cloth feeding mechanism 3 and the cloth discharging mechanism 5, the non-woven fabric for diaper processing can be effectively limited in position by the cloth feeding mechanism 3 and the cloth discharging mechanism 5;

[0040] When the non-woven fabric for diaper processing is being conveyed, the working state of the drum pressure pump 13 is set to adjust the air volume inside the conveying nip roller 17 according to the thickness of the non-woven fabric for diaper processing, so that the clamping bag 19 can effectively clamp and convey the non-woven fabric for diaper processing. When the conveying nip roller 17 is conveying, the air pressure probe 18 is used to monitor the air pressure data inside the air cavity in real time. The real-time data monitored by the air pressure probe 18 is fed back to the single-chip microcomputer 2 in real time. The single-chip microcomputer 2 assists in monitoring the clamping degree of the two clamping bags 19 on the non-woven fabric for diaper processing based on the data feedback of the air pressure probe 18. During the working process, the air pressure probe 18 is linked with the solenoid valve 20 and the drum pressure pump 13 to maintain the monitoring value of the air pressure probe 18 at the set threshold value;

[0041] The model of the air pressure probe 18 is MS5805-02BA01;

[0042] The model of microcontroller 2 is STM8S005K6T6C;

[0043] A screw pitch adjustment module 8 is installed in the middle of the frame 1, and the peripheral side of the screw pitch adjustment module 8 is connected to two symmetrically arranged longitudinal cloth pulling mechanisms with adjustable spacing;

[0044] The longitudinal cloth-pulling mechanism includes a movable platform 25 and a cloth-pulling platform 26. The inner wall of the movable platform 25 is in transmission connection with the screw pitch adjustment module 8. A set of horizontally arranged pull posts 27 are installed on the side of the movable platform 25. The side surfaces of the pull posts 27 are all in sliding connection with the cloth-pulling platform 26. The cross sections of the pull posts 27 and the limiting guide rod 23 are both T-shaped.

[0045] Limit springs 28 are sleeved on the circumferential side surfaces of the pulling column 27 and at positions corresponding to both sides of the movable platform 25. A tension sensor 29 is installed between the opposite surfaces of the cloth-pulling platform 26 and the movable platform 25. The port of the tension sensor 29 is electrically connected to the single-chip computer 2. A group of vertically arranged pressure push rods 30 are installed on the inner wall of the cloth-pulling platform 26. The surface of the cloth-pulling platform 26 is fixedly connected to the cloth clamping platform 31 through a group of pressure push rods 30. Transmission modules 32 are installed inside the cloth-pulling platform 26 and the cloth clamping platform 31. The circumferential side surfaces of the two transmission modules 32 are both transmission-connected to an annular conveying clamping belt 33.

[0046] The inner walls of the cloth stretching platform 26 and the cloth clamping platform 31 are fixedly mounted with clamping plates that fit in with the annular conveyor clamping belt 33;

[0047] The transmission module 32 includes a transmission motor and two transmission guide wheels. The output shaft end of the transmission motor is connected to a transmission guide wheel, and the peripheral side surfaces of the two transmission guide wheels are connected to the annular conveyor belt 33.

[0048] When working, the two transmission modules 32 at the longitudinal cloth pulling mechanism are in a constant speed working mode, and when the two transmission modules 32 are working, the rotation directions of the annular conveying belt 33 are opposite, thereby conveying the non-woven fabric for diaper processing in a specified direction;

[0049] The screw pitch adjustment module 8 includes a drive motor, a transmission screw and two positioning guide rods. Both ends of the two positioning guide rods are fixedly connected to the frame 1. Both ends of the transmission screw are rotatably connected to the frame 1. The output shaft end of the drive motor is fixedly connected to the transmission screw. The circumferential side surface of the transmission screw is symmetrically provided with a forward threaded portion and a reverse threaded portion. The circumferential side surfaces of the forward threaded portion and the reverse threaded portion are respectively transmission-connected to the two moving platforms 25 in the longitudinal cloth-drawing mechanism. The inner wall of the moving platform 25 is respectively slidably connected to the two positioning guide rods.

[0050] During use, the two movable platforms 25 can be synchronously moved closer to or farther from each other by setting the forward threaded portion and the reverse threaded portion at the screw distance adjustment module 8. The moving closer to or farther from each other changes the distance between the two movable platforms 25. The change in the distance between the two movable platforms 25 drives the two cloth-pulling platforms 26 to effectively tighten the non-woven fabric for diaper processing. When the cloth-pulling operation is performed, the non-woven fabric for diaper processing is effectively clamped between the two annular conveyor belts 33.

[0051] When the cloth is being stretched, the tension sensor 29 is used to monitor the tension of the mobile platform 25 on the cloth stretching platform 26 in real time. By monitoring the data of the tension sensor 29, the tension and tension of the non-woven fabric for diaper processing in the longitudinal direction can be monitored.

[0052] The model of the tension sensor 29 is HDWL2;

[0053] A conveyor frame 9 is installed between the inner surfaces of the frame 1 and at a position corresponding to the position between the two longitudinal cloth-pulling mechanisms. A conveyor module 10 is installed on the inner wall of the conveyor frame 9. The peripheral side of the conveyor module 10 is connected to an annular cloth-discharging belt 11 in a transmission manner. A group of regularly distributed forming grooves 12 are fixedly provided inside the annular cloth-discharging belt 11. The shape of the forming grooves 12 is adapted to the shape of the diapers, and the specific shape of the forming grooves 12 can be customized and changed according to the cutting requirements of the diapers.

[0054] The conveying module 10 includes a conveying motor and two conveying rollers. The surface of the conveying motor is fixedly connected to the conveying frame 9. Both ends of the two conveying rollers are rotatably connected to the conveying frame 9. The circumferential side surfaces of the two conveying rollers are transmission-connected to the annular cloth-discharging belt 11. The output shaft end of the conveying motor is fixedly connected to a conveying roller.

[0055] A cutting mechanism that cooperates with the forming groove 12 is fixedly installed on the top of the frame 1. The cutting mechanism includes a set of vertically arranged cutting push rods 34 and a knife seat 35. The side surfaces of a set of cutting push rods 34 are fixedly connected to the frame 1, and the bottom ends of a set of cutting push rods 34 are fixedly connected to the knife seat 35. A cutting ring 36 is fixedly installed on the bottom surface of the knife seat 35. The shape of the cutting ring 36 is adapted to the shape of the forming groove 12.

[0056] The working principle of the present invention is as follows: when diapers are cut and processed, the cloth feeding mechanism 3 is connected to the unwinding device of the non-woven fabric, and the non-woven fabric to be cut passes through the cloth feeding mechanism 3 and the cloth discharging mechanism 5 in sequence, and the tail end of the non-woven fabric is wound onto the waste cloth reel 7. Before the operation, the non-woven fabric for diaper processing is kept at a set degree of axial tension between the cloth feeding mechanism 3 and the cloth discharging mechanism 5 by controlling the pressure push rod 30 and the electrical monitoring structure setting of the pressure sensor 24 and the speed difference setting of the nip roller motor 15 at the cloth feeding mechanism 3 and the cloth discharging mechanism 5. The two sides of the non-woven fabric for diaper processing are clamped by two annular conveying clamping belts 33 in the two longitudinal cloth pulling mechanisms respectively, and the non-woven fabric for diaper processing is kept at a set tension in the longitudinal direction by controlling the screw pitch adjustment module 8. When cutting, the forming groove 12 on the annular cloth outlet belt 11 is aligned with the cutting ring knife 36. After alignment, the cutting push rod 34 drives the cutting ring knife 36 to apply pressure, and then cuts out diaper blanks with a specified shape on the non-woven fabric. The remaining non-woven fabric waste is wound up by the waste cloth roller 7, and the cut diaper blanks are sent out through the annular cloth outlet belt 11.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A positioning mechanism for cutting diapers, comprising a frame (1), wherein a single chip microcomputer (2) is fixedly mounted on the end surface of the frame (1), characterized in that: A cloth feeding mechanism (3) is installed at the feed port of the frame (1), the tail end of the frame (1) is connected to a tensioning frame (4) through two symmetrically arranged tensioning adjustment components, a cloth discharging mechanism (5) is installed between the inner surfaces of the tensioning frame (4), a waste cloth reel (7) driven by a reeling motor (6) is rotatably connected to the position of the inner surface of the frame (1) and adjacent to the cloth discharging mechanism (5), a screw distance adjustment module (8) is installed in the middle of the frame (1), and the peripheral side of the screw distance adjustment module (8) is connected to two symmetrically arranged longitudinal cloth pulling mechanisms with adjustable spacing, and the inner surface of the frame (1) and the corresponding two longitudinal cloth pulling mechanisms are connected to the inner surface of the frame (1). A conveying frame (9) is installed between the cloth pulling mechanisms, a conveying module (10) is installed on the inner wall of the conveying frame (9), the peripheral side of the conveying module (10) is connected to an annular cloth output belt (11), a group of regularly distributed forming grooves (12) are fixedly provided inside the annular cloth output belt (11), a cutting mechanism that cooperates with the forming grooves (12) is fixedly installed on the top of the frame (1), a drum pressure pump (13) is fixedly installed on the side of the frame (1), the port of the drum pressure pump (13) is fixedly connected to a cloth pressure pipe (14), and the ports of the cloth feeding mechanism (3) and the cloth output mechanism (5) are both fixedly connected to the cloth pressure pipe (14).

2. A positioning mechanism for cutting diapers according to claim 1, characterized in that: The cloth feeding mechanism (3) and the cloth discharging mechanism (5) each comprise a clamping roller motor (15), a pressure dividing tube (16) and two conveying clamping rollers (17), respectively; the surfaces of the clamping roller motor (15) and the pressure dividing tube (16) at the cloth feeding mechanism (3) are fixedly connected to the frame (1); both ends of the two conveying clamping rollers (17) at the cloth feeding mechanism (3) are rotatably connected to the frame (1); the surfaces of the clamping roller motor (15) and the pressure dividing tube (16) at the cloth discharging mechanism (5) are fixedly connected to the tensioning frame (4); both ends of the two conveying clamping rollers (17) at the cloth discharging mechanism (5) are rotatably connected to the tensioning frame (4); The tail ends of the conveying clamping rollers (17) are fixedly installed with linkage gears, and the two linkage gears are meshed with each other. The output shaft end of the clamping roller motor (15) is fixedly connected to one of the conveying clamping rollers (17). An air cavity is fixedly opened inside the conveying clamping roller (17), and the port of the air cavity is rotatably connected to the pressure dividing tube (16) through a rotary joint. An air pressure probe (18) electrically connected to the single-chip microcomputer (2) is fixedly installed inside the pressure dividing tube (16). The surface of the pressure dividing tube (16) is fixedly connected to the cloth pressure tube (14). A clamping bag (19) connected to the air cavity is fixedly installed on the peripheral side of the conveying clamping roller (17).

3. A positioning mechanism for cutting diapers according to claim 2, characterized in that: A solenoid valve (20) is fixedly provided at the connection point between the pressure dividing tube (16) and the cloth pressure tube (14); the clamping bag (19) is made of silicone material; friction lines are fixedly provided on the peripheral side surface of the clamping bag (19); a group of regularly distributed air holes connected to the clamping bag (19) are provided inside the conveying roller (17); a conveying gap is fixedly provided between the opposing surfaces of the two conveying rollers (17) for the non-woven fabric for diaper processing to pass through.

4. A positioning mechanism for cutting diapers according to claim 3, characterized in that: The center line of the conveying gap at the cloth feeding mechanism (3) is flush with the top surface of the annular cloth outlet belt (11), and the conveying gap at the cloth outlet mechanism (5) is arranged between the annular cloth outlet belt (11) and the waste cloth roller (7).

5. A positioning mechanism for cutting diapers according to claim 4, characterized in that: The tensioning adjustment assembly comprises a pressure regulating frame (37), an active pressure seat (21) and a group of horizontally arranged pressure regulating push rods (22), the peripheral side surfaces of a group of the pressure regulating push rods (22) are fixedly connected to the frame (1), the movable ends of a group of the pressure regulating push rods (22) are fixedly connected to the active pressure seat (21), the back surface of the pressure regulating frame (37) is fixedly connected to the tensioning frame (4), the end surface of the active pressure seat (21) is equipped with two horizontally arranged limiting guide rods (23), the peripheral side surfaces of the two limiting guide rods (23) are slidably connected to the pressure regulating frame (37), and a pressure sensor (24) electrically connected to the single-chip computer (2) is fixedly installed on a surface of the pressure regulating frame (37) relative to the active pressure seat (21).

6. A positioning mechanism for cutting diapers according to claim 5, characterized in that: The longitudinal cloth-pulling mechanism comprises a movable platform (25) and a cloth-pulling platform (26), the inner wall of the movable platform (25) is connected to the screw pitch adjustment module (8) by transmission, a group of horizontally arranged pulling columns (27) are installed on the side of the movable platform (25), the peripheral side surfaces of a group of the pulling columns (27) are all connected to the cloth-pulling platform (26) in a sliding manner, and the peripheral side surfaces of the pulling columns (27) and the positions corresponding to both sides of the movable platform (25) are sleeved with limit springs (28), and the relative surfaces of the cloth-pulling platform (26) and the movable platform (25) are A tension sensor (29) is installed between the cloth pulling platform (26), and the port of the tension sensor (29) is electrically connected to the single-chip computer (2). A group of vertically arranged pressure push rods (30) are installed on the inner wall of the cloth pulling platform (26). The surface of the cloth pulling platform (26) is fixedly connected to the cloth clamping platform (31) through a group of pressure push rods (30). Transmission modules (32) are installed inside the cloth pulling platform (26) and the cloth clamping platform (31), and the peripheral side surfaces of the two transmission modules (32) are both transmission-connected to an annular conveying clamping belt (33).

7. A positioning mechanism for cutting diapers according to claim 6, characterized in that: The screw pitch adjustment module (8) includes a driving motor, a transmission screw and two positioning guide rods, both ends of the two positioning guide rods are fixedly connected to the frame (1), both ends of the transmission screw rod are rotatably connected to the frame (1), the output shaft end of the driving motor is fixedly connected to the transmission screw rod, and the peripheral side surface of the transmission screw rod is symmetrically provided with a forward threaded portion and a reverse threaded portion, and the peripheral side surfaces of the forward threaded portion and the reverse threaded portion are respectively transmission-connected to the moving platforms (25) in the two longitudinal cloth-drawing mechanisms, and the inner wall of the moving platform (25) is respectively slidably connected to the two positioning guide rods.

8. A positioning mechanism for cutting diapers according to claim 7, characterized in that: The cross sections of the pulling column (27) and the limiting guide rod (23) are both T-shaped, and the inner walls of the cloth pulling platform (26) and the cloth clamping platform (31) are fixedly installed with clamping plates that fit with the annular conveying clamping belt (33), and the transmission module (32) respectively includes a transmission motor and two transmission guide wheels, the output shaft end of the transmission motor is connected to one of the transmission guide wheels, and the peripheral side surfaces of the two transmission guide wheels are connected to the annular conveying clamping belt (33).

9. The positioning mechanism for cutting diapers according to claim 1, characterized in that: The cutting mechanism comprises a group of vertically arranged cutting push rods (34) and a knife seat (35), wherein the peripheral side surfaces of a group of the cutting push rods (34) are fixedly connected to the frame (1), and the bottom ends of a group of the cutting push rods (34) are fixedly connected to the knife seat (35), and a cutting ring knife (36) is fixedly installed on the bottom surface of the knife seat (35), and the shape of the cutting ring knife (36) is adapted to the shape of the forming groove (12).

10. The positioning mechanism for cutting diapers according to claim 1, characterized in that: The conveying module (10) comprises a conveying motor and two conveying rollers, respectively. The surface of the conveying motor is fixedly connected to the conveying frame (9), both ends of the two conveying rollers are rotatably connected to the conveying frame (9), the circumferential side surfaces of the two conveying rollers are transmission-connected to the annular cloth-discharging belt (11), and the output shaft end of the conveying motor is fixedly connected to one of the conveying rollers.

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