Belt type active constant tension mechanism

Abstract

The utility model relates to the technical field of ribbon looms, in particular to a belt type active constant tension mechanism which comprises a rack, a pan head rotationally arranged on the rack, a belt driving device used for driving the pan head to rotate and a tension control device used for detecting warp tension, and the tension control device is used in cooperation with the belt driving device. The constant-tension high-efficiency warp yarn adjusting device achieves constant-tension high-efficiency warp yarn adjusting work, is high in automation degree and accurate and in-place in tension adjustment, and improves fabric quality and weaving efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of ribbon looms, in particular to a belt-type active constant tension mechanism. Background Art

[0002] With the increasing development of the textile industry, looms, as important mechanical equipment in the textile industry, have also been booming. Since the tension control of the warp yarn directly affects the fabric quality and weaving efficiency, the tension control of the warp yarn needs to be adjusted accordingly according to the different weaving speeds in actual work. The existing warp yarn tension control mainly relies on workers to touch the tension of the warp yarn by hand, and increase or decrease the number of weights on the tension adjustment frame based on work experience, and then fine-tune the tension of the warp yarn accordingly. However, this method not only requires experienced old employees to make multiple adjustments to complete, but the operation is cumbersome and time-consuming, labor-intensive, and difficult to accurately adjust, which reduces the fabric quality and weaving efficiency. Utility Model Content

[0003] The utility model aims to provide a belt-type active constant tension mechanism to address the deficiencies of the prior art, so as to realize efficient adjustment of warp yarn constant tension, have a high degree of automation, accurately adjust the tension, and improve fabric quality and weaving efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides a belt-type active constant tension mechanism, comprising a frame, a disc head rotatably arranged on the frame, a belt driving device for driving the disc head to rotate, and a tension control device for detecting the warp tension, wherein the tension control device is used in conjunction with the belt driving device.

[0005] Preferably, the tension control device includes a mounting seat, a tension sensor arranged in the mounting seat, a first yarn passing roller and a second yarn passing roller rotatably arranged on both sides of the mounting seat, and a detection roller rotatably arranged at the bottom of the mounting seat, the detection roller is located below the first yarn passing roller and the second yarn passing roller, a connecting plate is arranged at the bottom of the tension sensor, the mounting seat is provided with a through slot, the connecting plate passes through the through slot and protrudes out of the mounting seat, and the connecting plate is connected to the detection roller.

[0006] Preferably, the tension control device also includes a first rod body passing through the first yarn passing roller, a first bearing is provided at the connection between the first rod body and the first yarn passing roller, a first connecting plate is provided at one end of the first rod body close to the first bearing, first connecting holes are provided on both sides of the first connecting plate, the mounting seat is provided with a first U-shaped groove for accommodating the first rod body, and first mounting holes used in conjunction with the first connecting hole are provided on both sides of the first U-shaped groove.

[0007] Preferably, the tension control device also includes a second rod body passing through the second yarn passing roller, a second bearing is provided at the connection between the second rod body and the second yarn passing roller, a second connecting plate is provided at one end of the second rod body close to the second bearing, second connecting holes are provided on both sides of the second connecting plate, the mounting seat is provided with a second U-shaped groove for accommodating the second rod body, and second mounting holes used in conjunction with the second connecting holes are provided on both sides of the second U-shaped groove.

[0008] Preferably, the tension control device also includes a third rod body penetrating the detection roller, a third bearing is provided at the connection between the third rod body and the detection roller, the connecting plate is provided with a third connecting hole, and the third rod body protrudes out of the third bearing and is connected to the third connecting hole.

[0009] Preferably, the belt drive device includes a mounting plate arranged on the frame, a reducer arranged on the mounting plate, a servo motor drivingly connected to the reducer, a first pulley connected to the output end of the reducer, a second pulley arranged on the disc head, a transmission belt connected between the first pulley and the second pulley, a screw arranged on the mounting plate, a handwheel rotatably arranged on the screw, a nut seat threadedly sleeved on the outside of the screw, and a pressure wheel rotatably arranged on the nut seat, wherein the pressure wheel rolls against the transmission belt.

[0010] The utility model has the beneficial effects of realizing efficient adjustment of the constant tension of the warp yarn, having a high degree of automation, accurately adjusting the tension, and improving the fabric quality and weaving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 This is a schematic structural diagram of the utility model from another angle.

[0013] Figure 3 It is a schematic diagram of the exploded structure of the tension control device of the utility model.

[0014] Reference numerals include:

[0015] 1——Frame 2——Pan head

[0016] 3——Belt drive 31——Mounting plate 32——Reducer

[0017] 33——Servo motor 34——First pulley 35——Second pulley

[0018] 36——Transmission belt 37——Screw rod 38——Hand wheel

[0019] 39——Nut seat 310——Pressure wheel

[0020] 4——Tension control device 41——Mounting seat 42——Tension sensor

[0021] 43——first yarn passing roller 44——second yarn passing roller 45——detection roller

[0022] 46——connecting plate 47——through groove 48——first rod body

[0023] 49——first bearing 410——first connecting piece 411——first connecting hole

[0024] 412——first U-shaped groove 413——first mounting hole 414——second rod

[0025] 415——Second bearing 416——Second connecting piece 417——Second connecting hole

[0026] 418——Second U-shaped groove 419——Second mounting hole 420——Third rod

[0027] 421——third bearing 422——third connecting hole. DETAILED DESCRIPTION

[0028] The utility model is described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 3 As shown, a belt-type active constant tension mechanism of the utility model comprises a frame 1, a disc head 2 rotatably arranged on the frame 1, a belt driving device 3 for driving the disc head 2 to rotate, and a tension control device 4 for detecting the warp tension, wherein the tension control device 4 is used in conjunction with the belt driving device 3.

[0030] During operation, the operator inputs corresponding working parameters on the control panel according to the actual weaving work requirements and starts the work. The control panel is electrically connected to the tension control device 4 and the belt drive device 3. The belt drive device 3 drives the disk head 2 to rotate. The disk head 2 is wound with warp yarns. The rotating disk head 2 is used to automatically transport the warp yarns. The warp yarns pass through and trigger the tension control device 4. The tension control device 4 detects and obtains the actual tension value of the warp yarns in real time, and sends the obtained data information to the control panel for further analysis and processing. The actual tension value is compared with the pre-set standard tension value. When the actual tension value differs greatly from the standard tension value, the control panel generates a control instruction after calculation processing and sends the control instruction to the belt drive device 3, thereby controlling the belt drive device 3 to switch forward or reverse, ensuring that the actual tension value of the warp yarns is accurately adjusted to be within the standard range, and avoiding the situation where the actual tension value of the warp yarns is too large or too small. The utility model realizes the efficient adjustment of the constant tension of the warp yarns, has a high degree of automation, and accurately adjusts the tension, thereby improving the fabric quality and weaving efficiency.

[0031] The tension control device 4 of this embodiment includes a mounting seat 41, a tension sensor 42 arranged in the mounting seat 41, a first yarn passing roller 43 and a second yarn passing roller 44 rotatably arranged on both sides of the mounting seat 41, and a detection roller 45 rotatably arranged at the bottom of the mounting seat 41, the detection roller 45 is located below the first yarn passing roller 43 and the second yarn passing roller 44, a connecting plate 46 is arranged at the bottom of the tension sensor 42, the mounting seat 41 is provided with a through slot 47, the connecting plate 46 passes through the through slot 47 and protrudes out of the mounting seat 41, and the connecting plate 46 is connected to the detection roller 45. Specifically, a protective cover is installed on the outer side of the mounting seat 41. Since the tension sensor 42 is arranged in the mounting seat 41, the protective cover can cover and protect the tension sensor 42 to reduce the pollution or collision impact caused by the external environment. The detection roller 45 is below the first yarn passing roller 43 and the second yarn passing roller 44, so that the warp yarn first bypasses the first yarn passing roller 43, then bypasses the detection roller 45 downward, and finally goes up from the second yarn passing roller 44 to ensure that the warp yarn passes through and fully contacts the detection roller 45. Since a connecting plate 46 is provided at the bottom of the tension sensor 42, the connecting plate 46 passes through the through groove 47 and protrudes out of the bottom of the mounting seat 41, which facilitates the connection between the connecting plate 46 and the detection roller 45, so that the tension sensor 42 can accurately detect the tension changes of the warp yarn passing through the detection roller 45, and the detection accuracy is high.

[0032] The tension control device 4 of this embodiment also includes a first rod body 48 that passes through the first yarn passing roller 43, a first bearing 49 is provided at the connection between the first rod body 48 and the first yarn passing roller 43, a first connecting piece 410 is provided at one end of the first rod body 48 close to the first bearing 49, first connecting holes 411 are provided on both sides of the first connecting piece 410, the mounting seat 41 is provided with a first U-shaped groove 412 for accommodating the first rod body 48, and first mounting holes 413 that cooperate with the first connecting hole 411 are provided on both sides of the first U-shaped groove 412. Specifically, the first yarn passing roller 43 is sleeved on the outer side of the first rod body 48, and a first bearing 49 is provided at the connection between the first rod body 48 and the first yarn passing roller 43, so that the inner ring of the first bearing 49 is sleeved on the outer side of the first rod body 48, and the first yarn passing roller 43 is sleeved on the outer ring of the first bearing 49, so that the first yarn passing roller 43 can rotate relative to the first rod body 48 through the first bearing 49. One end of the first rod body 48 passes through the first bearing 49 and is connected to the first connecting piece 410, and then the first rod body 48 is placed in the first U-shaped groove 412, so that the first mounting holes 413 on both sides of the first U-shaped groove 412 are aligned with the first connecting holes 411 on both sides of the first connecting piece 410, and then external screws are used to pass through the first mounting holes 413 and connect and fix to the first connecting holes 411, so as to realize the installation of the first rod body 48 on the mounting seat 41, and the operation is simple and convenient.

[0033] The tension control device 4 of this embodiment also includes a second rod body 414 that passes through the second yarn roller 44, a second bearing 415 is provided at the connection between the second rod body 414 and the second yarn roller 44, a second connecting piece 416 is provided at one end of the second rod body 414 close to the second bearing 415, and second connecting holes 417 are provided on both sides of the second connecting piece 416, and the mounting seat 41 is provided with a second U-shaped groove 418 for accommodating the second rod body 414, and second mounting holes 419 that cooperate with the second connecting holes 417 are provided on both sides of the second U-shaped groove 418. Specifically, the second yarn passing roller 44 is sleeved on the outer side of the second rod body 414, and a second bearing 415 is provided at the connection between the second rod body 414 and the second yarn passing roller 44, so that the inner ring of the second bearing 415 is sleeved on the outer side of the second rod body 414, and the second yarn passing roller 44 is sleeved on the outer ring of the second bearing 415, so that the second yarn passing roller 44 can rotate relative to the second rod body 414 through the second bearing 415, one end of the second rod body 414 passes through the second bearing 415 and is connected to the second connecting piece 416, and then the second rod body 414 is placed in the second U-shaped groove 418, so that the second mounting holes 419 on both sides of the second U-shaped groove 418 are aligned with the second connecting holes 417 on both sides of the second connecting piece 416, and then external screws are used to pass through the second mounting holes 419 and connect and fix to the second connecting holes 417, so as to realize the installation of the second rod body 414 on the mounting seat 41, and the operation is simple and convenient.

[0034] The tension control device 4 of this embodiment further includes a third rod 420 penetrating the detection roller 45, a third bearing 421 is provided at the connection between the third rod 420 and the detection roller 45, a third connection hole 422 is provided at the connection plate 46, and the third rod 420 protrudes out of the third bearing 421 and is connected to the third connection hole 422. Specifically, the detection roller 45 is sleeved on the outer side of the third rod 420, and a third bearing 421 is provided at the connection between the third rod 420 and the detection roller 45, so that the inner ring of the third bearing 421 is sleeved on the outer side of the third rod 420, and the detection roller 45 is sleeved on the outer ring of the third bearing 421, so that the detection roller 45 rotates relative to the third rod 420 through the third bearing 421, and the third rod 420 protrudes out of the third bearing 421 and is connected to the third connection hole 422, thereby realizing the installation of the third rod 420 on the connection plate 46, which is simple and convenient to operate.

[0035] The belt drive device 3 of this embodiment includes a mounting plate 31 arranged on the frame 1, a reducer 32 arranged on the mounting plate 31, a servo motor 33 drivingly connected to the reducer 32, a first pulley 34 connected to the output end of the reducer 32, a second pulley 35 arranged on the disc head 2, a transmission belt 36 connected between the first pulley 34 and the second pulley 35, a screw rod 37 arranged on the mounting plate 31, a hand wheel 38 rotatably arranged on the screw rod 37, a nut seat 39 threadedly sleeved on the outside of the screw rod 37, and a pressure wheel 310 rotatably arranged on the nut seat 39, wherein the pressure wheel 310 rolls against the transmission belt 36. Specifically, before work, the operator turns the hand wheel 38, and the rotating hand wheel 38 drives the screw rod 37 to rotate synchronously. The rotating screw rod 37 can be threadedly connected to drive the nut seat 39 to move forward relative to the mounting plate 31, so that the pressure wheel 310 installed on the nut seat 39 is close to the transmission belt 36. When the pressure wheel 310 rolls and contacts the transmission belt 36, the transmission belt 36 reaches a suitable tension, ensuring stable transmission among the first pulley 34, the second pulley 35 and the transmission belt 36, and avoiding accidental slippage between the transmission belt 36 and the first pulley 34 and the second pulley 35. Then the servo motor 33 is started, and the servo motor 33 drives the first pulley 34 to rotate through the reducer 32. The rotating first pulley 34 drives the second pulley 35 to rotate through the transmission belt 36, so that the belt drive device 3 drives the disk head 2 to rotate, and the control panel sends corresponding work instructions to the servo motor 33, thereby controlling the servo motor 33 to rotate forward or reverse to adjust and change the warp tension delivered by the disk head 2.

[0036] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A belt-type active constant tension mechanism, characterized in that: It includes a frame, a disk head rotatably arranged on the frame, a belt driving device for driving the disk head to rotate, and a tension control device for detecting the warp tension, the tension control device is used in conjunction with the belt driving device, the tension control device includes a mounting seat, a tension sensor arranged in the mounting seat, a first yarn passing roller and a second yarn passing roller rotatably arranged on both sides of the mounting seat, and a detection roller rotatably arranged at the bottom of the mounting seat, the detection roller is located below the first yarn passing roller and the second yarn passing roller, a connecting plate is arranged at the bottom of the tension sensor, the mounting seat is provided with a through slot, the connecting plate passes through the through slot and protrudes out of the mounting seat, and the connecting plate is connected to the detection roller.

2. A belt-type active constant tension mechanism according to claim 1, characterized in that: The tension control device also includes a first rod body that passes through the first yarn passing roller, a first bearing is provided at the connection between the first rod body and the first yarn passing roller, a first connecting piece is provided at one end of the first rod body close to the first bearing, first connecting holes are provided on both sides of the first connecting piece, the mounting seat is provided with a first U-shaped groove for accommodating the first rod body, and first mounting holes that cooperate with the first connecting hole are provided on both sides of the first U-shaped groove.

3. A belt-type active constant tension mechanism according to claim 2, characterized in that: The tension control device also includes a second rod body that passes through the second yarn passing roller, a second bearing is provided at the connection between the second rod body and the second yarn passing roller, a second connecting piece is provided at one end of the second rod body close to the second bearing, second connecting holes are provided on both sides of the second connecting piece, the mounting seat is provided with a second U-shaped groove for accommodating the second rod body, and second mounting holes that cooperate with the second connecting holes are provided on both sides of the second U-shaped groove.

4. The belt-type active constant tension mechanism according to claim 1, characterized in that: The tension control device also includes a third rod body penetrating the detection roller, a third bearing is provided at the connection between the third rod body and the detection roller, a third connecting hole is provided on the connecting plate, and the third rod body protrudes out of the third bearing and is connected to the third connecting hole.

5. The belt-type active constant tension mechanism according to claim 1, characterized in that: The belt drive device includes a mounting plate arranged on the frame, a reducer arranged on the mounting plate, a servo motor drivingly connected to the reducer, a first pulley connected to the output end of the reducer, a second pulley arranged on the disc head, a transmission belt connected between the first pulley and the second pulley, a screw rod arranged on the mounting plate, a hand wheel rotatably arranged on the screw rod, a nut seat threadedly sleeved on the outside of the screw rod, and a pressure wheel rotatably arranged on the nut seat, wherein the pressure wheel rolls against the transmission belt.

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