Tightening device of rewinding machine

Abstract

The utility model relates to the technical field of rewinding machines, and discloses a rewinding machine tightening device which comprises a top transverse plate and an arranged hydraulic rod, a storage box is installed on the top of the top transverse plate, and suction fans are communicated with the two sides of the storage box. The end part of the rotating shaft is connected with a bearing seat, and a driving motor is mounted at the outer end of the bearing seat; a connecting seat is connected to the top of the conical scraping plate, material guiding barrels are additionally arranged on the front face and the back face of the connecting seat, material suction holes are evenly formed in the bottoms of the material guiding barrels, and elastic guide pipes are communicated between the material guiding barrels and the suction fan. According to the rewinding machine tightening device, when a rotating shaft is attached to a conical scraping plate, a driving motor drives the rotating shaft to rotate, the conical scraping plate scrapes the surface of the rotating shaft, a suction fan enables a suction hole to generate suction force through an elastic guide pipe, scraped dust particles and the like are sucked in and conveyed into a storage box to be stored. And therefore, the dust particles drifting around after being scraped are collected.

Description

Technical Field

[0001] The utility model relates to the technical field of rewinding machines, in particular to a tightening device for a rewinding machine. Background Art

[0002] A rewinder is a device used to wind roll materials such as paper and plastic film. Its primary function is to cut continuous material into defined lengths and then wind it into rolls for subsequent processing, packaging, storage, and transportation. Rewinders are essential equipment widely used in industries such as printing, papermaking, rewinding, and packaging. During the rewinding process, the material must maintain a certain tension to ensure smoothness and winding quality. A take-up device adjusts the tension to maintain a stable tension during the winding process, preventing problems such as loosening or breakage caused by insufficient or excessive tension.

[0003] A typical rewinder take-up device typically consists of a drive motor, reducer, tension sensor, tension regulator, reel, tensioning device, pressure roller, spring, and a guide and positioning system. The drive motor and reducer work together to reduce the speed. The tension sensor, tension regulator, spring, and pressure roller tighten the wound material, ensuring a tight fit between the material and the reel. The guide and positioning system directs the material's travel direction during the winding process, ensuring it remains in the correct position.

[0004] Traditional rewinder tightening devices can use hydraulic equipment to drive the shaft down, thereby applying pressure to the wound material. Since the overall structure of the device is usually exposed to the outside world during use, after long-term use, dust particles in the air will adhere to the surface of the shaft. When the shaft is tightly fitted to the wound material, not only will the contact surface with the wound material become uneven, affecting the winding quality of the material, but it will also cause scratches and damage to the wound material. To solve the above problems, some rewinder tightening devices are equipped with fans and nozzles. The fans draw in external air and transport it into the nozzles, which then spray the air onto the surface of the shaft, thereby cleaning the dust particles on the surface of the shaft. However, this method causes dust particles to float in all directions, which not only pollutes the equipment and the wound material, but also fails to effectively remove tightly connected dust particles. For this reason, a rewinder tightening device is proposed. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present invention provides a rewinder tightening device to solve the above-mentioned technical problems of not only causing pollution to the equipment and the winding material, but also failing to effectively remove tightly connected dust particles.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rewinding machine tightening device, comprising:

[0009] A top horizontal plate, and side frame plates arranged on both sides of the top horizontal plate, with hydraulic rods installed on the top of the side frame plates, and a storage box installed on the top of the top horizontal plate, and suction fans are connected on both sides of the storage box. An electric push rod is also added to the top of the top horizontal plate;

[0010] The rotating shaft is arranged just below the bottom of the top horizontal plate, and a bearing seat is connected to the end of the rotating shaft, and the bearing seat is connected to the hydraulic rod, and a driving motor is installed on the outer end of the bearing seat;

[0011] The conical scraper is mounted on top of the rotating shaft, and is connected to a connecting seat. The connecting seat is connected to an electric push rod, and a material guide barrel is added to the front and back of the connecting seat. The bottom of the material guide barrel is evenly provided with suction holes. An elastic conduit connects the material guide barrel and the suction fan. A hydraulic rod drives the bearing seat and the rotating shaft downward on the top horizontal plate, so that the rotating shaft applies pressure to the winding material to ensure that the material can be tightly and orderly wound on the reel of the reel. After the hydraulic rod drives the rotating shaft to reset, the rotating shaft and the conical scraper are tightly fitted. The drive motor drives the rotating shaft to rotate on the bearing seat, so that the conical scraper comprehensively scrapes dust particles and the like on the surface of the rotating shaft. The suction fan generates suction in the suction holes of the material guide barrel through the elastic conduit, sucking in the scraped dust particles and the like, and transporting them to the storage box for storage. On the one hand, it can not only collect dust particles floating around to avoid pollution to the equipment and winding materials, but also effectively remove tightly connected dust particles; on the other hand, the electric push rod can drive the conical scraper to descend through the connecting seat, and the guide barrel moves in the same direction as the connecting seat. At the same time, the elastic guide tube can be extended, so that the rotating shaft can be scraped in real time during operation, thereby ensuring the safety and quality of the winding material.

[0012] Preferably, separation mesh plates are provided at both sides of the air outlet at the top of the storage box, and the separation mesh plates are annular in design. The air injected into the storage box by the suction fan is discharged outward through the separation mesh plates, thereby preventing the air from carrying dust particles out of the storage box.

[0013] Preferably, a sliding groove is provided at the center of the outer side of the side frame plate, and the sliding groove is slidably connected to the bearing seat. Limiting grooves are provided on both sides of the inner wall of the sliding groove, and positioning sliders are installed on both sides of the bearing seat. The bearing seat and the positioning slider can move up and down along the sliding groove and the limiting groove, thereby preventing the bearing seat and the rotating shaft from deviating during the lifting process.

[0014] Preferably, a rotating handle is rotatably connected to both sides and the center of the top of the connecting base, and a positioning hole is formed in the center of the top of the rotating handle. Fixed rods are inserted on both sides of the rotating handle, and a fixed socket is formed on the outer side of the rotating handle. The positioning holes can be connected to corresponding structures, and the rotating handle can drive the corresponding structure to rotate. At the same time, when the rotating handle is rotated and adjusted, the fixed rod is inserted into the fixed socket through the rotating handle, thereby ensuring the stability of the rotating handle after rotation.

[0015] Preferably, hollow cylinders are installed on both sides and in the center of the top of the conical scraper, and a positioning turret is connected to the top of the hollow cylinder, and the positioning turret corresponds to the shape and position of the positioning hole. A rotating rod is added to the inner cavity of the hollow cylinder, and the rotating rod is connected to the positioning turret, and an arc-shaped rotating plate is installed on the surface of the rotating rod. When connecting the conical scraper to the connecting base, the hollow cylinder is first inserted into the inner cavity of the connecting base, and the positioning turret is inserted into the interior of the positioning hole for connection, so that the rotating handle drives the rotating rod and the arc-shaped rotating plate to rotate through the positioning turret and adjust the direction.

[0016] Preferably, the inner cavity of the hollow cylinder is provided with curved side plates on both sides, and tapered rods are connected to the outer sides of the curved side plates. The outer ends of the tapered rods extend outward through the inner wall of the hollow cylinder and are inserted into the connecting seat. A return spring is provided between the curved side plates and the tapered rods. When the rotating rod drives the curved rotating plates to rotate, the curved rotating plates drive the curved side plates outward, allowing the tapered rods to be inserted into the inner cavity of the connecting seat. When the curved rotating plates separate from the curved side plates, the return springs cause the tapered rods to separate from the connecting seat and return to the inner cavity of the hollow cylinder. This not only ensures the stability of the connection between the connecting seat and the tapered scraper, but also facilitates assembly and disassembly between the connecting seat and the tapered scraper, making it suitable for replacing the tapered scraper after it has worn to a certain extent.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a rewinding machine tightening device with the following beneficial effects:

[0019] This rewinder tightening device uses a hydraulic lever on the top horizontal plate to drive the bearing seat and rotating shaft downward, causing the rotating shaft to apply pressure to the winding material, ensuring that the material is tightly and orderly wound on the rewinder's reel. After the hydraulic lever drives the rotating shaft back to its original position, the rotating shaft and the conical scraper are tightly fitted together. The drive motor drives the rotating shaft on the bearing seat to rotate, causing the conical scraper to comprehensively scrape dust particles and other particles from the rotating shaft surface. The suction fan generates suction through the suction hole of the material guide barrel through the elastic duct, sucking in the scraped dust particles and transporting them to the storage box for storage. On the one hand, it not only collects dust particles that are floating around, preventing contamination of the equipment and the wound material, but also effectively removes dust particles that are tightly connected. On the other hand, the electric push rod can drive the conical scraper downward through the connecting seat, while the material guide barrel moves in the same direction as the connecting seat. At the same time, the elastic duct can be extended, allowing the rotating shaft to be scraped in real time during operation, thus ensuring the safety and quality of the wound material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the rotating shaft and its connection structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the storage box and its connection structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the sectional structure of the utility model with the connecting seat and the conical scraper separated.

[0024] In the figure: 1. Top horizontal plate; 2. Side frame plate; 3. Rotating shaft; 4. Bearing seat; 5. Positioning slider; 6. Driving motor; 7. Hydraulic rod; 8. Storage box; 9. Separation screen; 10. Suction fan; 11. Elastic conduit; 12. Material guide cylinder; 13. Suction hole; 14. Electric push rod; 15. Connecting seat; 16. Conical scraper; 17. Slide; 18. Limiting groove; 19. Rotating handle; 20. Positioning hole; 21. Fixed socket; 22. Fixed plug rod; 23. Hollow cylinder; 24. Positioning rotary head; 25. Rotating rod; 26. Arc rotating plate; 27. Arc side plate; 28. Conical plug rod; 29. ​​Return spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The utility model provides a technical solution, a rewinding machine tightening device, including: Figure 1 , a top transverse plate 1, and side frame plates 2 arranged on both sides of the top transverse plate 1, and a hydraulic rod 7 is installed on the top of the side frame plate 2, and a storage box 8 is installed on the top of the top transverse plate 1, and both sides of the storage box 8 are connected to a suction fan 10, and an electric push rod 14 is also provided on the top of the top transverse plate 1;

[0027] See also Figure 2 , the rotating shaft 3 is arranged just below the bottom of the top horizontal plate 1, and a bearing seat 4 is connected to the end of the rotating shaft 3, and the bearing seat 4 is connected to the hydraulic rod 7, and a drive motor 6 is installed at the outer end of the bearing seat 4;

[0028] See also Figure 3 A conical scraper 16 is arranged at the top of the rotating shaft 3, and the top of the conical scraper 16 is connected to a connecting seat 15, the connecting seat 15 is connected to the electric push rod 14, and a material guide cylinder 12 is added to the front and back of the connecting seat 15, and suction holes 13 are evenly opened at the bottom of the material guide cylinder 12, and an elastic duct 11 is connected between the material guide cylinder 12 and the suction fan 10. The hydraulic rod 7 drives the bearing seat 4 and the rotating shaft 3 on the top horizontal plate 1 to descend, so that the rotating shaft 3 applies pressure to the winding material to ensure that the material can be tightly and orderly wound on the reel of the rewinder. After the hydraulic rod 7 drives the rotating shaft 3 to reset, the rotating shaft 3 and the conical scraper 16 are tightly fitted, and the driving motor 6 drives the rotating shaft 3 to rotate on the bearing seat 4, so that the conical scraper 16 comprehensively scrapes away dust particles and the like on the surface of the rotating shaft 3. The suction fan 10 generates suction in the suction hole 13 of the guide barrel 12 through the elastic conduit 11, sucks in the scraped dust particles and the like, and transports them to the inside of the storage box 8 for storage. On the one hand, it can not only collect dust particles floating around to avoid pollution to the equipment and winding materials, but also effectively remove tightly connected dust particles; on the other hand, the electric push rod 14 can drive the conical scraper 16 to descend through the connecting seat 15, and the guide barrel 12 moves in the same direction as the connecting seat 15. At the same time, the elastic guide tube 11 can be extended, so that the rotating shaft 3 can be scraped in real time during operation, thereby ensuring the safety and quality of the winding material.

[0029] See also Figure 3 Separation screens 9 are installed on both sides of the air outlet of the top of the storage box 8, and the separation screens 9 are annular in design. The air injected into the storage box 8 by the suction fan 10 is discharged outward through the separation screens 9, preventing the air from carrying dust particles out of the storage box 8.

[0030] See also Figure 1A chute 17 is provided at the center of the outer side of the side frame plate 2, and is slidably connected to the bearing seat 4. Limiting grooves 18 are provided on both sides of the inner wall of the chute 17, and positioning sliders 5 are installed on both sides of the bearing seat 4. The bearing seat 4 and the positioning sliders 5 can move up and down along the chute 17 and the limiting grooves 18, thereby preventing the bearing seat 4 and the rotating shaft 3 from deviating during the lifting process.

[0031] See also Figure 4 A rotating handle 19 is rotatably connected to the top sides and center of the connecting seat 15. A positioning hole 20 is opened in the top center of the rotating handle 19, and fixed rods 22 are inserted on both sides of the rotating handle 19. A fixed socket 21 is opened on the outside of the rotating handle 19. The positioning hole 20 can be connected to a corresponding structure, and the rotating handle 19 can drive the corresponding structure to rotate. At the same time, when the rotating handle 19 is rotated and adjusted, the fixed rod 22 is inserted into the interior of the fixed socket 21 through the rotating handle 19, thereby ensuring the stability of the rotating handle 19 after rotation. A hollow cylinder 23 is installed on the top sides and center of the conical scraper 16, and a positioning turret 24 is connected to the top of the hollow cylinder 23. The positioning turret 24 corresponds to the shape and position of the positioning hole 20. A rotating rod 25 is added to the inner cavity of the hollow cylinder 23, and the rotating rod 25 is connected to the positioning turret 24. An arc-shaped rotating plate 26 is installed on the surface of the rotating rod 25. When connecting the conical scraper 16 to the connecting base 15, the hollow cylinder 23 first enters the inner cavity of the connecting base 15, and the positioning rotary head 24 is inserted into the interior of the positioning hole 20 to connect. The rotating handle 19 drives the rotating rod 25 and the curved rotating plate 26 to rotate and adjust the direction of rotation through the positioning rotary head 24. Curved side plates 27 are added to both sides of the inner cavity of the hollow cylinder 23, and conical plug rods 28 are connected to the outer sides of the curved side plates 27. The outer ends of the conical plug rods 28 extend outward through the inner wall of the hollow cylinder 23 to be inserted and connected to the connecting base 15. A return spring 29 is installed between the curved side plates 27 and the conical plug rod 28. When the rotating rod 25 drives the curved rotating plate 26 to rotate, the curved rotating plate 26 drives the curved side plates 27 to move outward, allowing the tapered insert rod 28 to be inserted into the inner cavity of the connecting seat 15. When the curved rotating plate 26 and the curved side plates 27 are separated, the tapered insert rod 28 is separated from the connecting seat 15 and reset to the inner cavity of the hollow cylinder 23 under the action of the return spring 29. This not only ensures the stability of the connection between the connecting seat 15 and the tapered scraper 16, but also facilitates the disassembly and assembly between the connecting seat 15 and the tapered scraper 16, thereby being suitable for replacing the tapered scraper 16 after it has worn to a certain extent.

[0032] This solution: The bearing seat 4 and the rotating shaft 3 are driven down on the top horizontal plate 1 by the hydraulic rod 7, and the bearing seat 4 and the positioning slider 5 can be raised and lowered along the slide groove 17 and the limit groove 18, so that the rotating shaft 3 applies pressure to the winding material to ensure that the material can be tightly and orderly wound on the reel of the rewinder. After the hydraulic rod 7 drives the rotating shaft 3 to reset, the rotating shaft 3 and the conical scraper 16 are tightly fitted, and the driving motor 6 drives the rotating shaft 3 to rotate on the bearing seat 4, so that the conical scraper 16 comprehensively scrapes away the dust particles on the surface of the rotating shaft 3. The suction fan 10 generates suction in the suction hole 13 of the guide barrel 12 through the elastic conduit 11, sucks in the scraped dust particles, and transports them to the inside of the storage box 8 for storage. The air injected into the storage box 8 by the suction fan 10 is discharged outward through the separation mesh plate 9. When connecting the conical scraper 16 to the connecting seat 15, the hollow cylinder 23 first enters the inner cavity of the connecting seat 15, and the positioning turntable 24 is inserted into the interior of the positioning hole 20 for connection, so that the rotating handle 19 drives the rotating rod 25 and the arc-shaped rotating plate 26 to rotate through the positioning turntable 24. When the rotating rod 25 drives the arc-shaped rotating plate 26 to rotate, the arc-shaped rotating plate 26 drives the arc-shaped side plate 27 to move outward, so that the conical insertion rod 28 is inserted into the inner cavity of the connecting seat 15. When the arc-shaped rotating plate 26 is separated from the arc-shaped side plate 27, under the action of the reset spring 29, the conical insertion rod 28 is separated from the connecting seat 15 and reset to the inner cavity of the hollow cylinder 23. When the rotation and adjustment of the rotating handle 19 is completed, the fixed insertion rod 22 is inserted into the interior of the fixed insertion hole 21 through the rotating handle 19.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rewinding machine tightening device, characterized in that: include: A top transverse plate (1), and side frame plates (2) arranged on both sides of the top transverse plate (1), wherein a hydraulic rod (7) is installed on the top of the side frame plates (2), and a storage box (8) is installed on the top of the top transverse plate (1), and both sides of the storage box (8) are connected to a suction fan (10), and an electric push rod (14) is also added to the top of the top transverse plate (1); A rotating shaft (3) is arranged just below the bottom of the top horizontal plate (1), and a bearing seat (4) is connected to the end of the rotating shaft (3), and the bearing seat (4) is connected to the hydraulic rod (7), and a driving motor (6) is installed at the outer end of the bearing seat (4); A conical scraper (16) is arranged on the top of the rotating shaft (3), and the top of the conical scraper (16) is connected to a connecting seat (15), the connecting seat (15) is connected to the electric push rod (14), and a material guide cylinder (12) is added on the front and back of the connecting seat (15), and suction holes (13) are evenly opened at the bottom of the material guide cylinder (12), and an elastic conduit (11) is connected between the material guide cylinder (12) and the suction fan (10).

2. The rewinding machine tightening device according to claim 1, characterized in that: Separation mesh plates (9) are provided at both sides of the air outlet ends at the top of the storage box (8), and the separation mesh plates (9) are designed to be annular as a whole.

3. The rewinding machine tightening device according to claim 1, characterized in that: A sliding groove (17) is provided at the center position of the outer side of the side frame plate (2), and the sliding groove (17) is slidably connected to the bearing seat (4), and limiting grooves (18) are provided on both sides of the inner wall of the sliding groove (17), and positioning sliders (5) are installed on both sides of the bearing seat (4).

4. The rewinding machine tightening device according to claim 1, characterized in that: The top two sides and the center of the connecting seat (15) are rotatably connected to a rotating handle (19), and a positioning hole (20) is provided at the top center of the rotating handle (19). Fixed insertion rods (22) are inserted on both sides of the rotating handle (19), and a fixed insertion hole (21) is provided on the outer side of the rotating handle (19).

5. The rewinding machine tightening device according to claim 4, characterized in that: Hollow cylinders (23) are installed on both sides and the center of the top of the conical scraper (16), and a positioning rotary head (24) is connected to the top of the hollow cylinder (23). The shape and position relationship of the positioning rotary head (24) and the positioning hole (20) correspond. A rotating rod (25) is added to the inner cavity of the hollow cylinder (23), and the rotating rod (25) is connected to the positioning rotary head (24). An arc-shaped rotating plate (26) is installed on the surface of the rotating rod (25).

6. The rewinding machine tightening device according to claim 5, characterized in that: Arc-shaped side plates (27) are provided on both sides of the inner cavity of the hollow cylinder (23), and a conical plug rod (28) is connected to the outer side of the arc-shaped side plates (27). The outer end of the conical plug rod (28) passes through the inner wall of the hollow cylinder (23) and extends outward to be connected with the connecting seat (15). A return spring (29) is provided between the arc-shaped side plates (27) and the conical plug rod (28).

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