Strip tension device

Abstract

The utility model discloses a strip tension device which comprises an upper roller set, a lower roller set, a detection assembly and a belt arranged on the outer sides of the roller sets in a sleeving mode. The upper roller set and the lower roller set each comprise an installation frame and a pair of tensioning rollers, the tensioning rollers are sleeved with the belt, and the installation frames abut against a supporting table on the inner side of the belt. The tensioning roller comprises a supporting shaft, a plurality of arc-shaped plates and an adjusting mechanism arranged between the supporting shaft and the arc-shaped plates, and the adjusting mechanism is used for adjusting the arc-shaped plates to move in the circumferential direction and adjusting the diameter of the tensioning roller. The detection assembly is used for detecting the tension of the belt in real time. According to the tensioning roller, the arc-shaped plates are controlled to be opened outwards or closed inwards in the radial direction through the adjusting mechanism, the diameter of the tensioning roller and the belt tensioning degree are controlled and adjusted in real time in cooperation with the detection assembly, the belt tensioning state can be accurately and flexibly controlled, and tension is stably provided for a belt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal material processing equipment, in particular to a strip tension device. BACKGROUND

[0002] The strip needs to be cut before use, and then wound into several narrow steel coils by a winding device. The counter-tension during winding plays a crucial role in the winding neatness of the strip and the side edge quality of the steel coil.

[0003] The existing tension generating device, such as the belt tensioner with publication number CN102049431A, adjusts the adjusting nuts on the upper adjusting device and the lower adjusting device to make the belt pass through the upper seat and the lower seat and be in a taut state. However, independent adjusting devices need to be set, and it is difficult to accurately control the tension force of the belt. If the tension is too small, the belt is difficult to tighten, which affects the quality of providing tension to the strip. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a strip tension device to solve the above-mentioned problems in the prior art, which adopts the following technical solutions:

[0005] The strip tension device comprises an upper roller set and a lower roller set, and a belt sleeved outside the roller sets;

[0006] The upper roller set and the lower roller set each comprise a mounting frame and a pair of tension rollers, the belt is sleeved outside the tension rollers, and a support table abutting the inner side of the belt is arranged on the mounting frame;

[0007] The tension roller comprises a support shaft and a plurality of arc-shaped plates, and an adjusting mechanism arranged between the support shaft and the arc-shaped plates for adjusting the arc-shaped plates to move in the circumferential direction and adjusting the diameter of the tension roller;

[0008] A detection assembly is arranged for real-time detection of the belt tension.

[0009] Preferably, the adjusting mechanism comprises a slider movable in the axial direction, the slider is sleeved outside the support shaft, a plurality of first inclined blocks are arranged on the arc-shaped plate, and a second inclined block closely matched with the first inclined blocks is arranged on the slider.

[0010] Preferably, the adjusting mechanism comprises an air bag, the air bag is sleeved outside the support shaft and connected with the arc-shaped plate, and the diameter of the tension roller is controlled by inflating or deflating the air bag.

[0011] Further preferably, a plurality of reset components are further arranged, the reset components are connected with the support shaft and the arc-shaped plate.

[0012] Preferably, the support shaft is provided with a baffle limiting both ends of the arc-shaped plate, the baffle is provided with a guide groove, and both ends of the arc-shaped plate are provided with protrusions sliding in the guide groove.

[0013] Preferably, the support table is located between the tensioning rollers, and the support table is provided with a heat dissipation structure for dissipating heat of the belt.

[0014] Further preferably, the heat dissipation structure comprises a heat dissipation channel and a cooling pipe, the cooling pipe is placed in the heat dissipation channel, a cooling medium flows in the cooling pipe, and the inlet and outlet of the cooling pipe are located on the same side of the heat dissipation channel.

[0015] Further preferably, the heat dissipation channel is provided with a heat conduction sheet for transferring heat of the support table, the cooling pipe is in a serpentine structure, the cooling pipe forms alternating first gaps and second gaps, and the heat conduction sheet is clamped in the first gaps.

[0016] Preferably, the drive component is further provided for driving the upper roller set and the lower roller set to move closer to or away from each other.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] (1) The tensioning roller of the application controls the arc-shaped plate to open outward or contract inward along the radial direction through the adjusting mechanism, cooperates with the detection assembly, and controls the diameter of the tensioning roller and the belt tension in real time. When the diameter of the tensioning roller increases, the belt is tensioned, and when the diameter decreases, the belt is loosened, thereby ensuring the belt tension state to stabilize the tension provided for the strip.

[0019] (2) The support table is provided with a heat dissipation structure, the cooling pipe arranged in the heat dissipation channel exchanges heat with the support table, the temperature of the support table is reduced, and the belt is cooled, thereby avoiding premature aging and scrapping of the belt, and avoiding corrosion of the cooling liquid to the support table.

[0020] (3) The cooling pipe is arranged in the heat dissipation channel in a serpentine structure, the heat conduction sheet is clamped in the first gaps between the cooling pipes, and the cooling pipe is convenient to pull out or install, thereby facilitating replacement and installation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the application;

[0022] Figure 2 is a structural schematic diagram of the tensioning roller of an embodiment of the application;

[0023] Figure 3 is a structural schematic diagram of the tensioning roller of another embodiment of the application;

[0024] Figure 4 is a schematic diagram of the tension roller structure of the present application;

[0025] Figure 5 is a schematic diagram of the heat dissipation structure of the present application;

[0026] Figure 6 is a schematic diagram of the cooling pipe structure of the present application.

[0027] in the figure:

[0028] 10, upper roller set, 20, lower roller set, 30, belt;

[0029] 40, tension roller, 300, support shaft, 310, sliding block, 320, arc plate, 330, adjusting mechanism, 3310, first inclined block, 3320, second inclined block, 340, baffle;

[0030] 50, mounting frame, 60, detection assembly, 70, support table, 80, cooling pipe, 810, first gap, 820, second gap, 90, heat conduction sheet, 100, heat dissipation channel. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the present application. Obviously, the embodiments described in the present application are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] participate Figures 1 to 6 , the present application is further illustrated:

[0033] combined Figure 1 , the strip tension device comprises an upper roller set 10 and a lower roller set 20, and a belt 30 sleeved outside the roller sets; the strip passes through between the belts 30.

[0034] combined Figure 2 and Figure 4 , the upper roller set 10 and the lower roller set 20 each comprise a mounting frame 50 and a pair of tension rollers 40, the belt 30 is sleeved outside the tension rollers 40, the tension rollers 40 comprise a support shaft 300 and a plurality of arc plates 320, and an adjusting mechanism 330 is arranged between the support shaft 300 and the arc plates 320, for adjusting the arc plates 320 to move in the radial direction, thereby adjusting the diameter of the tension roller 40, to realize tensioning of the belt 30.

[0035] Specifically, the arc-shaped plates 320 are coaxially arranged around the support shaft 300 and wrap the support shaft 300, and the belt 30 is sleeved outside the arc-shaped plates 320.

[0036] In combination Figure 1 The support table 70 is arranged between the tensioning rollers 40 and is installed on the mounting frame 50 to abut the inner side of the belt 30. The support table 70 is internally provided with a heat dissipation structure for dissipating heat of the belt 30. When the tensioning rollers 40 tension the belt 30, the belt 30 is lifted by increasing the distance between the tensioning rollers 40, so that the bottom of the support table 70 abuts the inner side of the belt 30, thereby realizing tensioning of the belt 30.

[0037] In combination Figure 1 In the embodiment, the detection assembly 60 is further included for real-time detection of the tension of the belt 30. The detection assembly 60 can be a detection roller cooperating with a pressure sensor to detect the tension of the belt 30, so that the belt 30 can be accurately tensioned, and the belt 30 is not damaged due to excessive tension or the belt 30 is difficult to provide tension due to insufficient tension.

[0038] Compared with the prior art, the arc-shaped plates 320 are pushed to move in the radial direction by the adjusting mechanism 330, and the belt 30 sleeved outside the arc-shaped plates 320 is lifted, so that an independent adjusting device is not required outside, and the belt 30 can be accurately and flexibly tensioned by cooperating with the detection assembly 60, and the belt 30 can be more accurately and conveniently adjusted.

[0039] In combination Figure 2 In the embodiment, the adjusting mechanism 330 includes a slider 310 that can move in the axial direction, and the slider 310 is sleeved outside the support shaft 300. The slider 310 can be driven by a gas cylinder or a hydraulic cylinder to slide along the support shaft 300 in the axial direction.

[0040] The arc-shaped plates 320 are provided with a plurality of first inclined blocks 3310, and the slider 310 is provided with a second inclined block 3320 that tightly cooperates with the first inclined blocks 3310 to slide. The first inclined blocks 3310 are provided with guide blocks, and the second inclined block 3320 is provided with sliding grooves for placing the guide blocks. The guide blocks and the sliding grooves are both "T"-shaped to realize tight cooperation and sliding therebetween. When the slider 310 moves to the left in the axial direction, the arc-shaped plates 320 are synchronously moved outward in the radial direction by cooperation of the second inclined block 3320 and the first inclined blocks 3310, so that the belt 30 is lifted. When the slider 310 moves to the right, the arc-shaped plates 320 are folded inward in the radial direction, and the belt 30 is loosened.

[0041] Combination Figure 3 In some embodiments, the adjusting mechanism 330 includes an air bladder and several reset components (not shown). The reset components are used to connect each of the arc-shaped plates 320 to the support shaft 300. The air bladder is sleeved on the outside of the support shaft 300, and the diameter of the tension roller 40 is controlled by inflating and deflating the air bladder. The reset components are used to pull the arc-shaped plates 320 to their reset positions. The air bladder can be supplied with or vented by an air supply device in conjunction with a reversing valve. Alternatively, each of the arc-shaped plates 320 can be connected to the outside of the air bladder.

[0042] In some embodiments, a driving component is further included, the driving component being used to drive the upper roller group 10 and the lower roller group 20 closer to or further apart from each other. Figure 1 (Moves up and down); the driving component can be a cylinder or a hydraulic cylinder, etc., which can drive the upper roller group 10 and the lower roller group 20 to abut against the strip or release the strip.

[0043] In this embodiment, a guide structure is also included. The support shaft 300 is provided with baffles 340 that restrict the two ends of the arc-shaped plate 320. The guide structure includes guide grooves provided on the baffles 340 and protrusions provided at both ends of the arc-shaped plate 320 that slide along the guide grooves. When the arc-shaped plate 320 moves in the radial direction, the protrusions slide along the guide grooves, ensuring the direction of movement of the arc-shaped plate 320.

[0044] Combination Figure 5 In this embodiment, the heat dissipation structure includes a heat dissipation channel 100 and a cooling pipe 80. The cooling pipe 80 is placed inside the heat dissipation channel 100, and a cooling medium flows inside the cooling pipe 80. The inlet and outlet of the cooling pipe 80 are both located on the same side of the heat dissipation channel 100.

[0045] Combination Figure 6 The heat dissipation channel 100 is provided with a heat-conducting plate 90 for transferring heat from the support platform 70. The cooling pipe 80 has a serpentine structure and includes alternating first gaps 810 and second gaps 820. The heat-conducting plate 90 is snapped into the first gap 810 so that the cooling pipe 80 can be pulled out of the heat dissipation channel 100. Figure 5 (The middle is the front side), which also improves the cooling effect. Compared with the existing method of opening cooling water circulation holes for heat dissipation, this application uses cooling pipe 80 in conjunction with heat conduction plate 90 to dissipate heat on support platform 70, which can avoid corrosion of support platform 70 by cooling medium; and the cooling pipe 80 can be pulled out of the heat dissipation channel 100 for easy replacement or cleaning.

Claims

1. Strip tension device, characterized in that: The upper roller set and the lower roller set are provided, and a belt is sleeved outside the roller sets; The upper roller set and the lower roller set each comprise a mounting frame and a pair of tension rollers, the belt is sleeved outside the tension rollers, and a support table on the mounting frame abuts against the inner side of the belt; The tension roller comprises a support shaft and a plurality of arc-shaped plates, and an adjusting mechanism is arranged between the support shaft and the arc-shaped plates, used for adjusting the arc-shaped plates to move in the circumferential direction, so as to adjust the diameter of the tension roller; A detection assembly is arranged for real-time detection of the belt tension.

2. The strip tension device of claim 1, wherein: The adjusting mechanism comprises a slider which can move in the axial direction and is sleeved outside the support shaft; the arc-shaped plate is provided with a plurality of first inclined blocks, and the slider is provided with a second inclined block which closely cooperates with the first inclined block to slide.

3. The strip tension device of claim 1, wherein: The adjusting mechanism comprises an air bag which is sleeved outside the support shaft and connected with the arc-shaped plate, and the diameter of the tension roller is controlled by inflating or deflating the air bag.

4. The strip tension device of claim 3, wherein: A plurality of reset components are further arranged, which are connected with the support shaft and the arc-shaped plate.

5. Strip tension device according to any one of claims 1 to 4, characterized in that: The support shaft is provided with a baffle which limits both ends of the arc-shaped plate, the baffle is provided with a guide groove, and both ends of the arc-shaped plate are provided with a protrusion which slides in the guide groove.

6. The strip tension device of claim 1, wherein: The support table is located between the tension rollers, and the support table is provided with a heat dissipation structure for heat dissipation of the belt.

7. The strip tension device of claim 6, wherein: The heat dissipation structure comprises a heat dissipation channel and a cooling pipe, the cooling pipe is placed in the heat dissipation channel, a cooling medium flows in the cooling pipe, and the inlet and outlet of the cooling pipe are arranged on the same side of the heat dissipation channel.

8. The strip tension device of claim 7, wherein: The heat dissipation channel is provided with a heat conduction sheet for transferring the heat of the support table, the cooling pipe is in a serpentine structure, the cooling pipe forms alternating first gaps and second gaps, and the heat conduction sheet is clamped in the first gap.

9. The strip tension device of claim 1, wherein: A driving component is further arranged, which is used for driving the upper roller set and the lower roller set to move close to or away from each other.

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