Tensioner for unwinding steel belt

Abstract

The utility model discloses a tensioner for unwinding a steel belt, which relates to the technical field of corrugated pipe production and processing and comprises a positioning shaft and extension plates rotationally penetrating through the front side and the rear side of a supporting table. One ends of the two rotating arms are rotatably arranged at the two ends of the positioning shaft respectively; rotating shafts at the two ends of the second tensioning roller are rotationally connected with the two ends of the rotating arm; the third tensioning roller is located between the two rotating arms, and sliding holes distributed along the third tensioning roller are formed in the positions, corresponding to the third tensioning roller, of the rotating arms; the two threaded columns penetrate through the sliding holes of the two third tensioning rollers in a sliding mode respectively, and the two threaded columns are rotationally connected with the rotating shafts of the third tensioning rollers at the corresponding positions respectively; the two threaded sleeves are arranged on the two threaded columns through threaded sleeves respectively and used for locking the positions of the threaded columns on the rotating arm; the adjusting device has the advantages of convenience in use, large adjusting range and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipe production and processing, in particular to a tensioner for unwinding a steel belt. Background Art

[0002] The corrugated pipe is mainly made of steel strips welded into a barrel shape, and then pressurized by a mold to form a corrugated pipe. The steel strips are packaged and transported in rolls, so they need to be unrolled when used. During the unrolling process, in order to ensure the tension of the steel strip, the tensioner will be used to control the tension of the steel strip.

[0003] For example, patent application number CN202321678410.2 discloses a self-tensioning steel strip cleaning device, in which the tensioning part 300 at the top of the cleaning tank 100 includes a tensioning roller 310, the vertical height of the tensioning roller 310 is less than the vertical height of the support part 200, and the tensioning roller 310 is inclined to both sides of the cleaning tank 100, and the tensioning roller 310 can always push the steel strip downward to tension the steel strip. The tensioning roller 310 can tension the steel strip, and when cleaning the steel strip, it is avoided that the steel strip will be bent or wrinkled, resulting in a dead angle that cannot be cleaned, thereby improving the cleaning quality. After cleaning, it is transported to the support part 200 above;

[0004] This patent in the prior art mainly uses a tensioning roller to push the steel belt to tension the steel belt, but the existing tensioning method mainly presses the steel belt into the cleaning tank, and this adjustment method only relies on the rotation of the adjusting roller to achieve the position change of the tensioning roller. It can only adjust the position of the tensioning roller and the adjusting roller, but cannot adjust the distance between the two. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a tensioner for steel strip unwinding, so as to solve the problem of low adjustment functionality of the tension roller for steel strip unwinding in the prior art described in the background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a steel strip unwinding tensioner, comprising

[0007] A support platform, fixedly connected to the support frame;

[0008] Two positioning rollers are located on a support platform, and the support platform has two first support plates corresponding to the position of each positioning roller, and the two first support plates are rotatably connected to the rotating shafts at both ends of the positioning roller;

[0009] The positioning shaft rotates the extension plates that pass through the front and rear sides of the support platform;

[0010] Two rotating arms, one end of which is rotatably arranged at two ends of the positioning shaft;

[0011] The second tensioning roller has rotating shafts at both ends rotatably connected to the two ends of the rotating arm;

[0012] A third tensioning roller is located between the two rotating arms, and a position on the rotating arm corresponding to the third tensioning roller has a sliding hole distributed along the third tensioning roller;

[0013] Two threaded columns are respectively slidably passed through the sliding holes of the two third tensioning rollers, and the two threaded columns are respectively rotatably connected to the rotating shafts of the third tensioning rollers at corresponding positions;

[0014] Two threaded sleeves are respectively arranged on the two threaded columns through threaded sleeves, and are used to lock the positions of the threaded columns on the rotating arm.

[0015] Preferably: a rotating cylinder is rotatably arranged at a position corresponding to each rotating arm on the support frame, and an output end of the rotating cylinder is rotatably connected to a rotating shaft of the rotating arm.

[0016] Preferably: the support platform is also fixedly connected to two second support plates, and the two second support plates are respectively provided with lifting plates which can be raised and lowered, and a first tensioning roller is arranged between the two lifting plates, and the two rotating shafts of the first tensioning roller rotate and pass through the lifting plates at corresponding positions.

[0017] Preferably, the second support plate has a vertical lifting hole, the lifting plate is I-shaped, and the grooves on both sides of the lifting plate are respectively slidably sleeved on the vertical side walls of the lifting hole.

[0018] Preferably, a threaded rod is threadedly connected to the second support plate, one end of the threaded rod extending into the lifting hole is rotatably connected to the pressing plate, and the pressing plate is connected to the lifting plate via a spring.

[0019] Preferably, both ends of the positioning shaft have external threads, nuts are connected to the external threads, and the nuts cooperate with the extension plate of the support platform to limit the position of the rotating arm.

[0020] The beneficial effects of adopting the above technical solution are:

[0021] The present application can clamp the fibers of the steel belt by setting up the second tensioning roller and the third tensioning roller, and can also adjust the tension of the steel belt by adjusting the distance between the third tensioning roller and the second tensioning roller. At the same time, the rotating arm can rotate to adjust the tensioning force, and the first tensioning roller can move vertically to adjust the tension of the steel belt. Therefore, compared with the existing steel belt tensioning method, the present application is more flexible and has a larger adjustment range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a front view of a tensioner for unwinding a steel belt.

[0023] Figure 2 The utility model is a top view of a tensioner for unwinding a steel belt.

[0024] Figure 3 It is a top view of the lifting plate of the utility model.

[0025] Among them: support frame 10, support platform 20, extension plate 21, positioning roller 30, first support plate 31, first tensioning roller 40, first rotating shaft 41, lifting plate 50, spring 51, pressure plate 52, threaded rod 53, second support plate 54, lifting hole 55, rotating arm 60, positioning shaft 61, nut 62, rotating cylinder 63, second tensioning roller 70, third tensioning roller 80, threaded column 81, threaded sleeve 82, sliding hole 83. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-3 In the first embodiment, a steel strip unwinding tensioner includes:

[0028] The support platform 20 is fixedly connected to the support frame 10;

[0029] Two positioning rollers 30 are located on the support platform 10. The support platform 10 has two first support plates 31 corresponding to the positions of each positioning roller 30. The two first support plates 31 are rotatably connected to the rotating shafts at both ends of the positioning roller 30.

[0030] The positioning shaft 61 rotates the extension plate 21 passing through the front and rear sides of the support platform 20;

[0031] Two rotating arms 60, one end of which is rotatably disposed at two ends of the positioning shaft 61;

[0032] The second tensioning roller 70 has rotating shafts at both ends thereof rotatably connected to both ends of the rotating arm 60;

[0033] A third tensioning roller 80 is located between the two rotating arms 60 , and a position on the rotating arm 60 corresponding to the third tensioning roller 80 has a sliding hole 83 distributed along the third tensioning roller 80 ;

[0034] Two threaded columns 81 slide through the sliding holes 83 of the two third tensioning rollers 80, respectively, and the two threaded columns 81 are rotatably connected to the rotating shafts of the third tensioning rollers 80 at corresponding positions;

[0035] The two threaded sleeves 82 are respectively threadedly mounted on the two threaded posts 81 to lock the positions of the threaded posts 81 on the rotating arm 60 .

[0036] This embodiment is implemented as follows:

[0037] When the present application is in use, the rotating arm 60 can rotate on the positioning shaft 61, so as to adjust the positions of the second tensioning roller 70 and the third tensioning roller 80, and the threaded column 81 on the third tensioning roller 80 can move in the sliding hole 83, so that the threaded column 83 can drive the rotating shaft of the third tensioning roller 80 to move, and then adjust the distance between the third tensioning roller 80 and the second tensioning roller 70, so as to adjust the tension of the steel belt, which makes the adjustment range of the tension of the steel belt in the present application larger.

[0038] The advantages of the present application over the prior art are that it is more flexible and has a larger adjustable range of tension.

[0039] See also Figure 1 A rotating cylinder 63 is rotatably provided at a position corresponding to each rotating arm 60 on the support frame 10, and an output end of the rotating cylinder 63 is rotatably connected to a rotating shaft of the rotating arm 60;

[0040] The rotating arm 60 is driven to rotate by a rotating cylinder 63 disposed on the support frame 10 .

[0041] See also Figure 1 , 2 The support platform 20 is also fixedly connected to two second support plates 54, and the two second support plates 54 are respectively provided with lifting plates 50 which can be lifted and lowered. A first tensioning roller 40 is arranged between the two lifting plates 50, and two rotating shafts of the first tensioning roller 40 rotate and penetrate the lifting plates 50 at corresponding positions;

[0042] The height of the first tensioning roller 40 connected thereto can be adjusted by means of the lifting plate 50 disposed on the second supporting plate 54 .

[0043] See also Figure 1 , 2 3. A vertical lifting hole 55 is provided on the second support plate 54. The lifting plate 50 is I-shaped. The grooves on both sides of the lifting plate 50 are slidably sleeved on the vertical side walls of the lifting hole 55;

[0044] In order to improve the stability of the lifting plate moving on the second support plate 54, the lifting plate 50 is set to an I-shape, and the two grooves of the lifting plate 50 are slidably mounted on the two vertical side walls of the lifting hole 55, so that the lifting plate 50 can slide vertically in the groove.

[0045] See also Figure 1 , 2 The second support plate 54 is connected with a threaded rod 53 by a thread, one end of the threaded rod 53 extending into the lifting hole 55 is rotatably connected to the pressing plate 52, and the pressing plate 52 is connected to the lifting plate 50 by a spring 51;

[0046] By rotating the threaded rod 53, the threaded rod 53 can be moved vertically in the lifting hole 55, so that the threaded rod 53 drives the pressure plate 52 to move vertically, and the pressure plate 52 can drive the lifting plate 50 to move vertically through the spring 51, so that the lifting plate 50 of the present application can move elastically in the lifting hole 55, so that the first tensioning roller 40 can achieve indirect elastic movement.

[0047] See also Figure 1 , 2 , both ends of the positioning shaft 61 have external threads, and nuts 62 are connected to the external threads. The nuts 62 cooperate with the extension plate 21 of the support platform 20 to limit the position of the rotating arm 60;

[0048] The nut 62 provided in the present application can be connected with the external thread on the positioning shaft 61 , so that the nut 62 and the extension plate 21 can limit the position of the rotating arm 60 .

[0049] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A tensioner for unwinding a steel strip, characterized in that: include A support platform, fixedly connected to the support frame; Two positioning rollers are located on a support platform, and the support platform has two first support plates corresponding to the position of each positioning roller, and the two first support plates are rotatably connected to the rotating shafts at both ends of the positioning roller; The positioning shaft rotates the extension plates that pass through the front and rear sides of the support platform; Two rotating arms, one end of which is rotatably arranged at two ends of the positioning shaft; The second tensioning roller has rotating shafts at both ends rotatably connected to the two ends of the rotating arm; A third tensioning roller is located between the two rotating arms, and a position on the rotating arm corresponding to the third tensioning roller has a sliding hole distributed along the third tensioning roller; Two threaded columns are respectively slidably passed through the sliding holes of the two third tensioning rollers, and the two threaded columns are respectively rotatably connected to the rotating shafts of the third tensioning rollers at corresponding positions; Two threaded sleeves are respectively arranged on the two threaded columns through threaded sleeves, and are used to lock the positions of the threaded columns on the rotating arm.

2. A steel strip unwinding tensioner according to claim 1, characterized in that: A rotating cylinder is rotatably arranged on the support frame corresponding to the position of each rotating arm, and the output end of the rotating cylinder is rotatably connected to the rotating shaft of the rotating arm.

3. A steel strip unwinding tensioner according to claim 1, characterized in that: The support platform is also fixedly connected to two second support plates, and the two second support plates are respectively provided with lifting plates which can be raised and lowered. A first tensioning roller is arranged between the two lifting plates, and the two rotating shafts of the first tensioning roller rotate and penetrate the lifting plates at corresponding positions.

4. A steel strip unwinding tensioner according to claim 3, characterized in that: The second support plate is provided with a vertical lifting hole. The lifting plate is I-shaped. The grooves on both sides of the lifting plate are respectively slidably sleeved on the vertical side walls of the lifting hole.

5. A steel strip unwinding tensioner according to claim 3, characterized in that: A threaded rod is connected to the second support plate through threads, one end of the threaded rod extending into the lifting hole is rotatably connected to the pressing plate, and the pressing plate is connected to the lifting plate through a spring.

6. A steel strip unwinding tensioner according to claim 1, characterized in that: Both ends of the positioning shaft are provided with external threads, and nuts are connected to the external threads. The nuts cooperate with the extension plate of the support platform to limit the position of the rotating arm.

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