Vertical tension roller structure

Abstract

The utility model relates to the technical field of tension rollers, in particular to a vertical tension roller structure which comprises a vertical frame and a tension roller arranged in front of the vertical frame. A mounting plate is arranged above the tensioning roller, a pressing plate is arranged between the mounting plate and the tensioning roller, an electric cylinder and at least two telescopic shafts are connected between the pressing plate and the mounting plate, a concave frame is arranged between the tensioning roller and the pressing plate, a pressure sensing switch and at least two spring telescopic rods are connected between the concave frame and the pressing plate, and the tensioning roller is rotationally connected with the concave frame; according to the tension roller structure, through the cooperation of the pressure sensing switch and the alarm, when the tension roller is loosened in the tensioning process, the alarm gives out an alarm sound, so that a worker can be reminded in time that the tensioning force of the tension roller structure is greatly loosened, the worker can maintain the tension roller structure in time, and the working efficiency is improved. The situation that normal tensioning work is affected due to insufficient tensioning force is avoided, and work errors are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tension rollers, in particular to a vertical tension roller structure. Background Art

[0002] The tension roller is used to convert the torque of the driving device on it into the tension of the strip through the friction between the roller surface and the strip. The number and arrangement of the tension rollers depend on the maximum tensile force required by the strip and the site conditions. The tension roller group is generally divided into an inlet tension roller group and an outlet tension roller group. Furthermore, they can be driven by an electric motor or a hydraulic motor alone or interconnected by a gear differential device. However, no matter how different the driving device is, its fundamental purpose is to create a speed difference between the inlet belt and the outlet belt, thereby generating the required tension for driving.

[0003] In the Chinese patent authorization announcement number CN 213054640 U, ​​a tension roller structure that is easy to disassemble is disclosed, including a tension roller, the tension roller is a cylindrical structure, and a cylindrical hole that passes through the tension roller is opened in the tension roller, and the two side walls of the tension roller are opened with a threaded hole 1, and the threaded holes 1 are arranged in multiples and arranged at equal intervals, and the two side walls of the tension roller are provided with side discs, each of the side discs is opened with a threaded hole 2, and the number of the threaded holes 2 and the threaded holes 1 are equal and the positions are corresponding, and the threaded holes 2 and the threaded holes 1 are connected by bolts, and the opposite sides of the two side discs are installed with cylindrical rods, and each of the opposite sides of the cylindrical rods is opened with a threaded hole 4. In short, the technical solution of the application uses a coherent and compact structure to solve the problem that the traditional tension roller and the equipment are mostly integrated devices, which are not easy to disassemble when a fault occurs, or it is troublesome to replace tension rollers of different sizes and models.

[0004] By reviewing the above comparative documents, it can be seen that the prior art still has the following deficiencies. Since tension is often used to tension cloth or belts and other structures, once the tensioning force is significantly relaxed, if there is a lack of early warning measures on the tension roller structure, it is difficult for the staff to know in time that the tensioning force is significantly relaxed, and it is impossible to discover and maintain it in time, which will affect the normal tensioning work. In addition, the tension roller structure can generally only perform tensioning work in a fixed direction. Since it is difficult to change other tensioning directions, the existing tension roller structure has poor applicability. Utility Model Content

[0005] The utility model provides a vertical tension roller structure, which is helpful for timely discovering whether the tensioning force of the tension roller structure is relaxed, and is helpful for effectively improving the applicability of the tension roller structure.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A vertical tension roller structure comprises a vertical frame and a tension roller, wherein the tension roller is arranged in front of the vertical frame;

[0008] A mounting plate is provided above the stretching roller, a pressing plate is provided between the mounting plate and the stretching roller, an electric cylinder and at least two telescopic shafts are connected between the pressing plate and the mounting plate, a concave frame is provided between the stretching roller and the pressing plate, a pressure sensing switch and at least two spring telescopic rods are connected between the concave frame and the pressing plate, the stretching roller is rotatably connected to the concave frame, and an alarm is installed at the lower end of the mounting plate;

[0009] The upper end of the mounting plate is rotatably connected with a positioning plate, the upper end of the positioning plate is fixed with an adjustment plate, a first positioning assembly is arranged above the mounting plate, and a second positioning assembly is arranged at the front end of the vertical frame.

[0010] Furthermore, the first positioning assembly includes a first limit plate, a first threaded positioning rod, a first externally threaded sleeve, a first spring return rod and a first clamping ball, the first limit plate is arranged between the mounting plate and the positioning plate, the first threaded positioning rod is fixed to the upper end of the first limit plate, and the first threaded positioning rod is threaded upward through the positioning plate.

[0011] Furthermore, first threaded holes are formed around the upper end of the mounting plate, the first external threaded sleeve is fixed to the lower end of the first limiting plate, and the first external threaded sleeve is threadably matched with the first threaded hole.

[0012] Furthermore, the first spring return rod is fixed in the first external threaded sleeve, the first clamping ball is connected to the end of the first spring return rod, and the arc surface of the first clamping ball extends out of the first external threaded sleeve.

[0013] Furthermore, the second positioning assembly includes a fixed plate, a second limiting plate, a second threaded positioning rod, a second externally threaded sleeve, a second spring return rod and a second clamping ball, the fixed plate is fixed to the front end of the vertical frame, the adjustment plate is rotatably connected to the front end of the fixed plate, and the second limiting plate is arranged between the adjustment plate and the fixed plate.

[0014] Furthermore, the second threaded positioning rod is fixed at the front end of the second limiting plate, and the second threaded positioning rod is threaded forward through the adjustment plate, second threaded holes are opened around the front end of the fixing plate, the second externally threaded sleeve is fixed to the rear end of the second limiting plate, and the second externally threaded sleeve is threadedly matched with the second threaded hole, the second spring return rod is fixed in the second externally threaded sleeve, the second clamping ball is connected to the end of the second spring return rod, and the arc surface of the second clamping ball extends out of the second externally threaded sleeve.

[0015] Beneficial effects of the utility model:

[0016] 1. When tensioning fabrics or belts through tensioning rollers, the pressure sensing switch and alarm are in normal state. Once the tensioning force of the tensioning roller decreases and exceeds the preset value, the pressure sensing switch will control the alarm to sound an alarm, which is helpful to promptly remind the staff that the tensioning force of the tension roller structure has been greatly relaxed. Therefore, the staff can promptly maintain the tension roller structure to avoid the situation where the tensioning force is insufficient and affects the normal tensioning work, effectively reducing work errors;

[0017] 2. By rotating the mounting plate, the tensioning position of the tensioning roller after rotation can be conveniently changed, and by rotating the adjusting plate, the tensioning direction of the tensioning roller can be conveniently changed. This facilitates tensioning work in multiple directions through the tension roller structure, effectively improving the applicability of the tension roller structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the mounting plate structure of the utility model;

[0020] Figure 3 A is a schematic diagram of the enlarged structure of the local area of ​​the utility model;

[0021] Figure 4 This is a schematic diagram of the top view structure of the mounting plate of the utility model;

[0022] Figure 5 This is a side structural diagram of the adjustment plate of the utility model;

[0023] Figure 6 It is a schematic diagram of the enlarged structure of the B part of the utility model;

[0024] Figure 7 It is a schematic diagram of the overall working external structure of the utility model.

[0025] Description of reference numerals:

[0026] Vertical frame 1, tensioning roller 2, mounting plate 3, fixing plate 4, adjusting plate 5, positioning plate 6, pressing plate 7, spring telescopic rod 8, concave frame 9, pressure sensing switch 10, electric cylinder 11, telescopic shaft 12, alarm 13, first threaded positioning rod 14, first threaded hole 15, first limiting plate 16, first externally threaded sleeve 17, first spring return rod 18, first clamping ball 19, second threaded positioning rod 20, second threaded hole 21, second limiting plate 22, second externally threaded sleeve 23, second spring return rod 24, second clamping ball 25. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0028] like Figure 1-2 As shown, in this embodiment, it includes a vertical frame 1 and a stretching roller 2, the stretching roller 2 is arranged in front of the vertical frame 1, a mounting plate 3 is arranged above the stretching roller 2, a pressure plate 7 is arranged between the mounting plate 3 and the stretching roller 2, an electric cylinder 11 and at least two telescopic shafts 12 are connected between the pressure plate 7 and the mounting plate 3, a concave frame 9 is arranged between the stretching roller 2 and the pressure plate 7, a pressure sensing switch 10 and at least two spring telescopic rods 8 are connected between the concave frame 9 and the pressure plate 7, the stretching roller 2 is rotatably connected to the concave frame 9, and an alarm 13 is installed at the lower end of the mounting plate 3.

[0029] When tensioning is performed through the vertical tension roller structure, especially when tensioning structures such as cloth or belts, the extension of the electric cylinder 11 drives the pressure plate 7, the pressure sensing switch 10, the spring telescopic rod 8, the concave frame 9 and the tensioning roller 2 to move, and the pressure plate 7 stretches the telescopic shaft 12 until the tensioning roller 2 tensions the cloth or belt. At this time, since the cloth or belt will apply a reaction force to the tensioning roller 2, the reaction force will be applied to the pressure sensing switch 10 through the concave frame 9. The pressure sensing switch 10 is set to be connected in series with the alarm 13, and a pre-start value is set for the pressure sensing switch 10, such as The pre-start value of the pressure sensing switch 10 is set at a pressure value less than 1N (the specific pre-start value of the pressure sensing switch 10 depends on the specific situation), so the pressure sensing switch 10 will start when the pressure value is less than 1N, which means that the tensioning force of the tension roller 2 is in a loose warning state. Therefore, the pressure sensing switch 10 will control the alarm 13 to sound an alarm, which is conducive to timely reminding the staff that the tensioning force of the tension roller structure has been greatly relaxed, so the staff can maintain the tension roller structure in time to avoid the situation where the tensioning force is insufficient and affects the normal tensioning work, thereby effectively reducing work errors.

[0030] like Figure 1-4As shown, in this embodiment, the upper end of the mounting plate 3 is rotatably connected to a positioning plate 6, and an adjusting plate 5 is fixed to the upper end of the positioning plate 6. A first positioning assembly is provided above the mounting plate 3, and the first positioning assembly includes a first limiting plate 16, a first threaded positioning rod 14, a first externally threaded sleeve 17, a first spring return rod 18 and a first clamping ball 19. The first limiting plate 16 is arranged between the mounting plate 3 and the positioning plate 6, the first threaded positioning rod 14 is fixed to the upper end of the first limiting plate 16, and the first threaded positioning rod 14 is threadedly penetrated through the positioning plate 6 upward, and first threaded holes 15 are opened around the upper end of the mounting plate 3, the first externally threaded sleeve 17 is fixed to the lower end of the first limiting plate 16, and the first externally threaded sleeve 17 is threadedly matched with the first threaded hole 15, the first spring return rod 18 is fixed in the first externally threaded sleeve 17, the first clamping ball 19 is connected to the end of the first spring return rod 18, and the arc surface of the first clamping ball 19 extends out of the first externally threaded sleeve 17.

[0031] When it is necessary to adjust the tensioning position of the tensioning roller 2, under the premise that the first externally threaded sleeve 17 is tightened in the first threaded hole 15, the first threaded positioning rod 14 is screwed to drive the first limiting plate 16 and the first externally threaded sleeve 17 to rotate until the first externally threaded sleeve 17 moves out of the first threaded hole 15. At this time, the first limiting plate 16 supports the positioning plate 6 to prevent the first threaded positioning rod 14 from accidentally falling off, and can also prevent the first clamping ball 19 from directly moving out of the first threaded hole 17. At this time, the extended part of the first clamping ball 19 is just located in the first threaded hole 15. Then the mounting plate 3 is rotated again to make the opening of the first threaded hole 15 slide along the arc surface of the first clamping ball 19, so that the first clamping ball 19 will compress the first spring return rod 18. Until the first clamping ball 19 moves out of the first threaded hole 15, the mounting plate 3 continues to rotate to drive the tensioning roller 2 together Rotation, when the position of the tensioning roller 2 is adjusted, the first clamping ball 19 will be aligned with the corresponding first threaded hole 15, and then the first spring return rod 18 will drive the first clamping ball 19 to be stuck in the corresponding first threaded hole 15, so that the mounting plate 3 has a sense of frustration when driving the tensioning roller 2 to rotate. Through the sense of frustration, it can be accurately judged that the first external threaded sleeve 17 is aligned with the corresponding first threaded hole 15. Therefore, turning the first threaded positioning rod 14 can conveniently drive the first external threaded sleeve 17 to be threadedly matched to the first threaded hole 15 to prevent the tensioning roller 2 from loosening after the position is adjusted, thereby completing the stable adjustment and positioning of the tensioning position of the tensioning roller 2, so that the tensioning position of the tensioning roller 2 after rotation can be conveniently changed, which is beneficial to tensioning work in multiple directions through the tension roller structure, and effectively improves the applicability of the tension roller structure.

[0032] like Figure 5-7As shown, in this embodiment, the front end of the vertical frame 1 is provided with a second positioning component, the second positioning component includes a fixed plate 4, a second limiting plate 22, a second threaded positioning rod 20, a second externally threaded sleeve 23, a second spring return rod 24 and a second clamping ball 25, the fixed plate 4 is fixed to the front end of the vertical frame 1, the adjusting plate 5 is rotatably connected to the front end of the fixed plate 4, the second limiting plate 22 is arranged between the adjusting plate 5 and the fixed plate 4, the second threaded positioning rod 20 is fixed to the front end of the second limiting plate 22, and the second threaded positioning rod 20 is threadedly passed through the adjusting plate 5 forward, the front end of the fixed plate 4 is provided with second threaded holes 21 all around, the second externally threaded sleeve 23 is fixed to the rear end of the second limiting plate 22, and the second externally threaded sleeve 23 is threadedly matched with the second threaded hole 21, the second spring return rod 24 is fixed in the second externally threaded sleeve 23, the second clamping ball 25 is connected to the end of the second spring return rod 24, and the arc surface of the second clamping ball 25 extends out of the second externally threaded sleeve 23.

[0033] When it is necessary to continue to change the tensioning position of the tensioning roller 2, under the premise that the second externally threaded sleeve 23 is tightened in the second threaded hole 21, the second threaded positioning rod 20 is screwed and the second limiting plate 22 and the second externally threaded sleeve 23 are driven to rotate until the second externally threaded sleeve 23 moves out of the second threaded hole 21. At this time, the second limiting plate 22 supports the adjusting plate 5 to prevent the second threaded positioning rod 20 from accidentally falling off, and can also prevent the second clamping ball 25 from directly moving out of the second threaded hole 21. At this time, the extending part of the second clamping ball 25 is just located in the second threaded hole 21. Then the adjusting plate 5 is rotated again and the opening of the second threaded hole 21 is made to slide along the arc surface of the second clamping ball 25, so that the second clamping ball 25 compresses the second spring return rod 24. Until the second clamping ball 25 moves out of the second threaded hole 21, the adjusting plate 5 continues to rotate to drive the mounting plate 3 and the tensioning roller. 2 rotates together. When the position of the tensioning roller 2 is adjusted, the second clamping ball 25 will be aligned with the corresponding second threaded hole 21, and then the second clamping ball 25 will be driven to be clamped into the corresponding second threaded hole 21 through the rebound force of the second spring return rod 24, so that there is a sense of frustration when the adjustment plate 5 drives the tensioning roller 2 to rotate. Through the sense of frustration, it can be accurately judged that the second external threaded sleeve 23 is aligned with the corresponding second threaded hole 21. Therefore, turning the second threaded positioning rod 20 can conveniently drive the second external threaded sleeve 23 to be threadedly matched into the second threaded hole 21 to prevent the tensioning roller 2 from loosening after the position adjustment. In this way, the stable adjustment and positioning of the tensioning position of the tensioning roller 2 is completed, so that the tensioning direction and position of the tensioning roller 2 can be conveniently changed. In summary, it is beneficial to perform tensioning work in multiple directions through the tension roller structure, and the applicability of the tension roller structure is effectively improved.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A vertical tension roller structure, comprising a vertical frame (1) and a tension roller (2), wherein the tension roller (2) is arranged in front of the vertical frame (1), and is characterized in that: A mounting plate (3) is provided above the stretching roller (2), a pressing plate (7) is provided between the mounting plate (3) and the stretching roller (2), an electric cylinder (11) and at least two telescopic shafts (12) are connected between the pressing plate (7) and the mounting plate (3), a concave frame (9) is provided between the stretching roller (2) and the pressing plate (7), a pressure sensing switch (10) and at least two spring telescopic rods (8) are connected between the concave frame (9) and the pressing plate (7), the stretching roller (2) is rotatably connected to the concave frame (9), and an alarm (13) is installed at the lower end of the mounting plate (3); The upper end of the mounting plate (3) is rotatably connected to a positioning plate (6), the upper end of the positioning plate (6) is fixed with an adjustment plate (5), a first positioning component is provided above the mounting plate (3), and a second positioning component is provided at the front end of the vertical frame (1).

2. A vertical tension roller structure according to claim 1, characterized in that: The first positioning assembly comprises a first limiting plate (16), a first threaded positioning rod (14), a first externally threaded sleeve (17), a first spring return rod (18) and a first clamping ball (19); the first limiting plate (16) is arranged between the mounting plate (3) and the positioning plate (6); the first threaded positioning rod (14) is fixed to the upper end of the first limiting plate (16), and the first threaded positioning rod (14) is threadedly passed through the positioning plate (6) upward.

3. A vertical tension roller structure as claimed in claim 2, characterized in that: The upper end of the mounting plate (3) is provided with first threaded holes (15) on all sides thereof, the first external threaded sleeve (17) is fixed to the lower end of the first limiting plate (16), and the first external threaded sleeve (17) is threadably matched with the first threaded hole (15).

4. A vertical tension roller structure as claimed in claim 3, characterized in that: The first spring return rod (18) is fixed in the first external thread sleeve (17), the first clamping ball (19) is connected to the end of the first spring return rod (18), and the arc surface of the first clamping ball (19) extends out of the first external thread sleeve (17).

5. A vertical tension roller structure according to claim 1, characterized in that: The second positioning assembly comprises a fixing plate (4), a second limiting plate (22), a second threaded positioning rod (20), a second externally threaded sleeve (23), a second spring return rod (24) and a second clamping ball (25); the fixing plate (4) is fixed to the front end of the vertical frame (1); the adjusting plate (5) is rotatably connected to the front end of the fixing plate (4); and the second limiting plate (22) is arranged between the adjusting plate (5) and the fixing plate (4).

6. A vertical tension roller structure as claimed in claim 5, characterized in that: The second threaded positioning rod (20) is fixed to the front end of the second limiting plate (22), and the second threaded positioning rod (20) is threadedly passed through the adjustment plate (5) in a forward direction. Second threaded holes (21) are opened around the front end of the fixing plate (4). The second externally threaded sleeve (23) is fixed to the rear end of the second limiting plate (22), and the second externally threaded sleeve (23) is threadedly matched with the second threaded hole (21). The second spring return rod (24) is fixed in the second externally threaded sleeve (23). The second clamping ball (25) is connected to the end of the second spring return rod (24), and the arc surface of the second clamping ball (25) extends out of the second externally threaded sleeve (23).

Images