Rotating shaft convenient for fixing paper drum

Abstract

The utility model relates to the field of rotating shafts, and discloses a rotating shaft convenient for fixing a paper drum, which comprises a plurality of loading and unloading holes, the plurality of loading and unloading holes are all arranged on the surface of a rotating shaft body, air bags are detachably arranged in the loading and unloading holes, flexible plates are respectively fixed on two sides of the two air bags close to each other, and the flexible plates are arranged on the surface of the rotating shaft body. An elastic plate is fixed between the two flexible plates, an air injection hole is formed in the top face of the elastic plate and communicates with the air bag, and a breather pipe is arranged in the rotating shaft body. According to the rotating shaft, when the air bag is damaged, a worker can pull out the air bag, then roll up the flexible plate connected with the bottom surface of a new air bag, plug the flexible plate into the rotating shaft body through the loading and unloading hole and unfold the flexible plate, and at the moment, the elastic plate and the ventilation pipe are mutually extruded and sealed, so that the new air bag can be mounted in the loading and unloading hole; therefore, the service life of the rotating shaft body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to a rotating shaft which is convenient for fixing a paper roll. Background Art

[0002] The paper reel is the first set of equipment after the paper machine. It relies on the weight of the paper reel and the friction of the cold cylinder to drive the paper to be wound evenly. The shaft is an important part of the paper reel. The paper reel is fixed on the shaft and the paper reel is wound or unwound by the rotation of the shaft.

[0003] According to the Chinese patent with the announcement number: CN216335604U, a fixed-limited paper reel for producing household paper includes a paper reel, which includes a mounting frame and a paper reel assembly, which is laterally mounted on the mounting frame, and the paper reel assembly includes a motor, one end of the motor is equipped with a connecting shaft, the end of the connecting shaft is equipped with a rotating roller assembly, and one end of the rotating roller assembly is equipped with a blocking device, through which the paper reel can be placed or the paper reel can be prevented from falling.

[0004] In the above scheme, a spring is used to apply force to the semi-arc block, which still has the following disadvantages: the spring may break after long-term use. After the spring breaks, the semi-arc block cannot work normally, reducing the service life of the shaft. Utility Model Content

[0005] The utility model aims to provide a rotating shaft for fixing a paper roll, so as to solve the problem that a spring may break after long-term use, and after the spring breaks, the semi-arc block cannot work normally, thus reducing the service life of the rotating shaft.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a rotating shaft for fixing a paper roll, comprising a plurality of loading and unloading holes, wherein the plurality of loading and unloading holes are all opened on the surface of the rotating shaft body, and an air bag is detachably arranged inside the loading and unloading holes, and flexible plates are respectively fixed on both sides of two air bags close to each other, and an elastic plate is fixed between the two flexible plates, and an air injection hole is opened on the top surface of the elastic plate, and the air injection hole is connected with the air bag, and a ventilation pipe is arranged inside the rotating shaft body, and a fixing pipe is fixed on the ventilation pipe, and two fixing columns are fixed on the surface of the fixing pipe, and the other end of the fixing column is fixed to the inner wall surface of the rotating shaft body.

[0007] Preferably, a fixing hole is provided on the surface of the ventilation pipe, a connecting hole is provided on the surface of the fixing pipe, an air injection pipe is fixed inside the fixing hole, the surface of the air injection pipe is fixed to the inner wall surface of the connecting hole, an air nozzle is fixed to one end of the air injection pipe, and two mounting holes are provided on the surface of the rotating shaft body, and the inner wall surface of the mounting hole is fixed to the air nozzle.

[0008] Preferably, both ends of the rotating shaft body are respectively provided with fixing grooves, a rotating column is rotatably arranged inside the fixing groove, and a rotating plate is fixed to one end of the rotating column.

[0009] Preferably, an extrusion plate is slidably provided on one side of the rotating plate, a limiting opening is provided on one side of the extrusion plate, a sliding plate is fixed on one side of the rotating plate, and the limiting opening and the sliding plate are slidably provided.

[0010] Preferably, two sliding holes are opened on one side of the extrusion plate, and two sliding rods are fixed on one side of the rotating plate. The sliding rods are slidably inserted into the sliding holes, and a spring is surrounded by the surface of the sliding rods. One end of the spring is fixed to one side of the rotating plate, and the other end of the spring is fixed to one side of the extrusion plate.

[0011] Preferably, a measuring plate is fixed on the surface of the rotating shaft body, and a plurality of scale bars are evenly distributed on one side of the measuring plate.

[0012] Compared with the prior art, the rotating shaft for fixing the paper roll using the above technical solution has the following beneficial effects:

[0013] 1. After the staff puts the paper roll on the shaft body, they will continuously inject gas into the inside of the ventilation tube through the air nozzle and the air injection tube. The gas will enter the inside of the airbag through the air injection hole, which can inflate the airbag and squeeze it on the inner wall of the paper roll, increase the friction between the paper roll and the shaft body, and fix the paper roll on the shaft body. When the airbag is damaged, the staff can pull out the airbag, then roll up the flexible plate connected to the bottom of the new airbag and insert it into the inside of the shaft body through the loading and unloading hole and unfold it. At this time, the elastic plate and the ventilation tube squeeze and seal each other, and the new airbag can be installed into the inside of the loading and unloading hole, so that the damaged airbag can be replenished at any time, which increases the service life of the shaft body.

[0014] 2. When installing the shaft body on the equipment, the staff will first apply force to the two extrusion plates in the direction of the shaft body and squeeze the spring to contract. Then the staff will install the shaft body on the equipment and insert the output shaft of the driving device into the limiting port through the limiting port. Then, the force applied to the extrusion plate is removed. The compressed spring is restored to push the limiting port to slide on the output shaft of the driving device, and the installation of the shaft body is completed, which increases the convenience when loading and unloading the shaft body.

[0015] 3. Before installing the paper roll on the shaft body, the staff will first measure the length of the paper roll according to the measuring plate, and compare the result with the length of the shaft body, so that the paper roll and the shaft body of corresponding length can be installed together, which increases the matching degree between the shaft body and the fixed paper roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is an exploded perspective schematic diagram of an embodiment.

[0018] Figure 3 It is a schematic diagram of the explosion of the flexible plate and the fixed tube in the embodiment.

[0019] Figure 4 It is a schematic diagram of the explosion of the rotating plate and the extrusion plate in the embodiment.

[0020] In the figure: 1. shaft body; 2. loading and unloading hole; 3. air bag; 4. flexible plate; 5. elastic plate; 6. air injection hole; 7. ventilation pipe; 8. fixing pipe; 9. fixing column; 10. fixing hole; 11. connecting hole; 12. air injection pipe; 13. mounting hole; 14. air nozzle; 15. fixing groove; 16. rotating plate; 17. extrusion plate; 18. limit opening; 19. sliding plate; 20. sliding rod; 21. sliding hole; 22. spring; 23. measuring plate; 24. rotating column. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 3 As shown, a rotating shaft for fixing a paper roll comprises a plurality of loading and unloading holes 2, which are all provided on the surface of a rotating shaft body 1, an air bag 3 is detachably provided inside the loading and unloading holes 2, flexible plates 4 are fixed on both sides of two air bags 3 close to each other, an elastic plate 5 is fixed between the two flexible plates 4, an air injection hole 6 is provided on the top surface of the elastic plate 5, the air injection hole 6 is communicated with the air bag 3, a vent pipe 7 is provided inside the rotating shaft body 1, a fixing pipe 8 is fixed on the vent pipe 7, two fixing columns 9 are fixed on the surface of the fixing pipe 8, the other end of the fixing column 9 is fixed to the inner wall surface of the rotating shaft body 1, a fixing hole 10 is provided on the surface of the vent pipe 7, a connecting hole 11 is provided on the surface of the fixing pipe 8, an air injection pipe 12 is fixed inside the fixing hole 10, the surface of the air injection pipe 12 is fixed to the inner wall surface of the connecting hole 11, an air nozzle 14 is fixed to one end of the air injection pipe 12, and two mounting holes 13 are provided on the surface of the rotating shaft body 1, and the inner wall surface of the mounting hole 13 is fixed to the air nozzle 14.

[0023] During use, after the staff puts the paper roll on the shaft body 1, they will continuously inject gas into the interior of the ventilation tube 7 through the air nozzle 14 and the air injection tube 12. The gas will enter the interior of the airbag 3 through the air injection hole 6, which can inflate the airbag 3 and squeeze it on the inner wall of the paper roll, thereby increasing the friction between the paper roll and the shaft body 1, and fixing the paper roll on the shaft body 1. When the airbag 3 is damaged, the staff can pull out the airbag 3, and then roll up the flexible plate 4 connected to the bottom surface of the new airbag 3 and insert it into the interior of the shaft body 1 through the loading and unloading hole 2 and unfold it. At this time, the elastic plate 5 and the ventilation tube 7 are squeezed and sealed against each other, and a new airbag 3 can be installed into the interior of the loading and unloading hole 2, so that the damaged airbag 3 can be replenished at any time, thereby increasing the service life of the shaft body 1.

[0024] like Figure 2 and Figure 4 As shown, fixing grooves 15 are respectively provided at both ends of the rotating shaft body 1, and a rotating column 24 is rotatably arranged inside the fixing groove 15. A rotating plate 16 is fixed to one end of the rotating column 24, and an extrusion plate 17 is slidably arranged on one side of the rotating plate 16. A limiting opening 18 is provided on one side of the extrusion plate 17, and a sliding plate 19 is fixed to one side of the rotating plate 16. The limiting opening 18 and the sliding plate 19 are slidably arranged, and two sliding holes 21 are provided on one side of the extrusion plate 17. Two sliding rods 20 are fixed to one side of the rotating plate 16, and the sliding rods 20 are slidably inserted into the sliding holes 21. A spring 22 is surrounded on the surface of the sliding rod 20, and one end of the spring 22 is fixed to one side of the rotating plate 16, and the other end of the spring 22 is fixed to one side of the extrusion plate 17.

[0025] During use, when the shaft body 1 is installed on the equipment, the staff will first apply force towards the shaft body 1 with the two extrusion plates 17, and squeeze the spring 22 to contract. Then the staff will install the shaft body 1 on the equipment, and insert the output shaft of the driving device into the interior of the limit opening 18 through the limit opening 18. Then, the force applied to the extrusion plate 17 is removed, and the compressed spring 22 is restored to push the limit opening 18 to slide on the output shaft of the driving device, thereby completing the installation of the shaft body 1, which increases the convenience when loading and unloading the shaft body 1.

[0026] like Figure 2 As shown, a measuring plate 23 is fixed to the surface of the rotating shaft body 1 , and a plurality of scale bars are evenly distributed on one side of the measuring plate 23 .

[0027] During use, before installing the paper roll on the shaft body 1, the staff will first measure the length of the paper roll according to the measuring plate 23, and compare the result with the length of the shaft body 1, and then the paper roll and the shaft body 1 of corresponding length can be installed together, thereby increasing the matching degree between the shaft body 1 and the fixed paper roll.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rotating shaft for fixing a paper roll, comprising a plurality of loading and unloading holes (2), wherein the plurality of loading and unloading holes (2) are all formed on the surface of a rotating shaft body (1), characterized in that: An airbag (3) is detachably arranged inside the loading and unloading hole (2); flexible plates (4) are respectively fixed on two sides of the two airbags (3) close to each other; an elastic plate (5) is fixed between the two flexible plates (4); an air injection hole (6) is opened on the top surface of the elastic plate (5); the air injection hole (6) is connected to the airbag (3); a vent pipe (7) is arranged inside the rotating shaft body (1); a fixing pipe (8) is fixed on the vent pipe (7); two fixing columns (9) are fixed on the surface of the fixing pipe (8); the other end of the fixing column (9) is fixed to the inner wall surface of the rotating shaft body (1).

2. The rotating shaft for fixing a paper roll according to claim 1, characterized in that: The surface of the ventilation pipe (7) is provided with a fixing hole (10), the surface of the fixing pipe (8) is provided with a connecting hole (11), an air injection pipe (12) is fixed inside the fixing hole (10), the surface of the air injection pipe (12) is fixed to the inner wall surface of the connecting hole (11), an air nozzle (14) is fixed to one end of the air injection pipe (12), and the surface of the rotating shaft body (1) is provided with two mounting holes (13), the inner wall surface of the mounting hole (13) is fixed to the air nozzle (14).

3. The rotating shaft for fixing a paper roll according to claim 1, characterized in that: Both ends of the rotating shaft body (1) are respectively provided with fixing grooves (15), a rotating column (24) is rotatably arranged inside the fixing groove (15), and a rotating plate (16) is fixed to one end of the rotating column (24).

4. The rotating shaft for fixing a paper roll according to claim 3, characterized in that: A pressing plate (17) is slidably arranged on one side of the rotating plate (16), a limiting opening (18) is provided on one side of the pressing plate (17), a sliding plate (19) is fixed on one side of the rotating plate (16), and the limiting opening (18) and the sliding plate (19) are slidably arranged.

5. The rotating shaft for fixing a paper roll according to claim 4, characterized in that: Two sliding holes (21) are provided on one side of the extrusion plate (17), and two sliding rods (20) are fixed on one side of the rotating plate (16). The sliding rods (20) are slidably inserted into the sliding holes (21), and a spring (22) is surrounded on the surface of the sliding rod (20). One end of the spring (22) is fixed to one side of the rotating plate (16), and the other end of the spring (22) is fixed to one side of the extrusion plate (17).

6. The rotating shaft for fixing a paper roll according to claim 1, characterized in that: A measuring plate (23) is fixed on the surface of the rotating shaft body (1), and a plurality of scale bars are evenly distributed on one side of the measuring plate (23).

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