Gear transmission constant tension mechanism

Abstract

The utility model relates to the technical field of ribbon looms, in particular to a gear transmission constant tension mechanism which comprises a machine frame, a pan head arranged on the machine frame in a rotating mode, a gear driving device used for driving the pan head to rotate and a tension control device used for detecting warp tension. The gear driving device comprises a mounting plate arranged on the rack, a speed reducer arranged on the mounting plate, a servo motor in driving connection with the speed reducer, a driving gear connected with the output end of the speed reducer and a driven gear arranged on the pan head, and the driving gear and the driven gear are in meshing transmission. The conveying speed of warp is accurately controlled in a double-gear meshing transmission mode, the tension of the warp is intelligently adjusted in cooperation with the tension control device, and the adjusting precision and the transmission efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ribbon looms, in particular to a gear transmission 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 method is to wrap the brake rope around the disk head and apply brake damping to the disk head, one end of the brake rope is connected to the frame, and the other end of the brake rope is connected to the lever, and a weight of a specific weight is pressed on the lever. The staff relies on work experience to increase or decrease the weight of the weight to adjust the warp yarn tension. However, as the warp yarn is continuously transported, the number of warp yarns decreases and the overall weight of the disk head is reduced, thereby speeding up the rotation speed of the disk head and affecting the transport speed of the warp yarn. The tension of the warp yarn will also change accordingly, so the tension of the warp yarn cannot be adjusted in time, resulting in the warp yarn tension being unable to be maintained within a suitable range, and the adjustment accuracy is poor. Utility Model Content

[0003] The purpose of the utility model is to provide a gear transmission constant tension mechanism to address the deficiencies in the prior art, to accurately control the warp conveying speed through a double gear meshing transmission mode, to cooperate with a tension control device to intelligently adjust the warp tension, and to improve the adjustment accuracy and transmission efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides a gear-driven constant tension mechanism, comprising a frame, a disc head rotatably arranged on the frame, a gear 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 gear driving device, and the gear driving device comprises a mounting plate arranged on the frame, a reducer arranged on the mounting plate, a servo motor drivingly connected to the reducer, a driving gear connected to the output end of the reducer, and a driven gear arranged on the disc head, wherein the driving gear is meshed with the driven gear for transmission.

[0005] Preferably, an assembly disk is provided on the outer side of the disk head, the assembly disk is provided with a first assembly hole, the driven gear is provided with a second assembly hole used in conjunction with the first assembly hole, a positioning boss is convexly provided on a side of the assembly disk close to the disk head, a positioning groove is concavely provided on the outer wall of the disk head, the positioning boss protrudes into the positioning groove, the assembly disk is concavely provided with a magnet assembly groove, the magnet assembly groove is provided with a magnet block, the outer wall of the disk head is concavely provided with a accommodating groove, and the magnet block protrudes into the accommodating groove.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] The beneficial effects of the utility model are as follows: the conveying speed of the warp yarn is accurately controlled by the double gear meshing transmission mode, and the tension of the warp yarn is intelligently adjusted in coordination with the tension control device, thereby improving the adjustment accuracy and transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0012] Figure 2 It is a schematic diagram of the exploded structure of the gear drive device of the present utility model.

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

[0014] Figure 4 It is a schematic diagram of the assembly disk structure of the utility model.

[0015] Reference numerals include:

[0016] 1——Rack

[0017] 2——Pan head 21——Positioning groove 22——Accommodating groove

[0018] 3——Gear drive device 31——Mounting plate 32——Reducer

[0019] 33——Servo motor 34——Driving gear 35——Driven gear

[0020] 36——Second assembly hole

[0021] 4——Tension control device 41——Mounting seat 42——Tension sensor

[0022] 43——first yarn passing roller 44——second yarn passing roller 45——detection roller

[0023] 46——connecting plate 47——through groove 48——first rod body

[0024] 49——first bearing 410——first connecting piece 411——first connecting hole

[0025] 412——first U-shaped groove 413——first mounting hole 414——second rod

[0026] 415——Second bearing 416——Second connecting piece 417——Second connecting hole

[0027] 418——Second U-shaped groove 419——Second mounting hole 420——Third rod

[0028] 421——third bearing 422——third connecting hole

[0029] 5——Assembly plate 51——First assembly hole 52——Positioning boss

[0030] 53——magnet assembly groove 54——magnet block. DETAILED DESCRIPTION

[0031] The utility model is described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 4As shown, a gear transmission constant tension mechanism of the utility model comprises a frame 1, a disc head 2 rotatably arranged on the frame 1, a gear driving device 3 for driving the disc head 2 to rotate, and a tension control device for detecting the warp tension, wherein the tension control device is used in conjunction with the gear driving device 3, and the gear driving device 3 comprises 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 driving gear 34 connected to the output end of the reducer 32, and a driven gear 35 arranged on the disc head 2, wherein the driving gear 34 is meshed with the driven gear 35 for transmission.

[0033] During operation, the operator inputs corresponding working parameters into the control box according to the actual weaving work requirements and starts the work. The control box is electrically connected to the tension control device and the gear drive device 3. The servo motor 33 drives the driving gear 34 to rotate through the reducer 32. Since the driving gear 34 is meshed with the driven gear 35, the driven gear 35 is driven to rotate, and the disk head 2 connected to the driven gear 35 is further driven to rotate. The disk head 2 is wound with warp yarn, and the rotating disk head 2 is used to automatically transport the warp yarn. The warp yarn passes through and triggers the tension control device. The tension control device detects and obtains the actual tension value of the warp yarn in real time, and sends the obtained data information to the control box for further analysis and processing, and compares the actual tension value with the pre-set standard tension value. When the actual tension value differs greatly from the standard tension value, the control box generates a control instruction after calculation and processing and sends the control instruction to the gear drive device 3, thereby controlling the gear drive device 3 to switch forward or reverse, so as to ensure that the actual tension value of the warp yarn is accurately adjusted to be within the standard range. Compared with other transmission modes, such as belt transmission or chain transmission, the meshing between the driving gear 34 and the driven gear 35 transmits power, which has high transmission efficiency and small energy loss, avoiding accidental slippage. Since the meshing between the driving gear 34 and the driven gear 35 has a small gap, the gear transmission can achieve accurate speed ratio and rotation ratio, and has high transmission accuracy. The utility model accurately controls the conveying speed of the warp yarn through the double gear meshing transmission mode, cooperates with the tension control device to intelligently adjust the tension of the warp yarn, and improves the adjustment accuracy and transmission efficiency.

[0034] An assembly disk 5 is provided on the outer side of the pan head 2 of the present embodiment, and the assembly disk 5 is provided with a first assembly hole 51, and the driven gear 35 is provided with a second assembly hole 36 used in conjunction with the first assembly hole 51. A positioning boss 52 is convexly provided on a side of the assembly disk 5 close to the pan head 2, and a positioning groove 21 is concavely provided on the outer wall of the pan head 2, and the positioning boss 52 protrudes into the positioning groove 21, and a magnet assembly groove 53 is concavely provided on the assembly disk 5, and a magnet block 54 is provided on the magnet assembly groove 53, and a receiving groove 22 is concavely provided on the outer wall of the pan head 2, and the magnet block 54 protrudes into the receiving groove 22. Specifically, the driven gear 35 fits against the outside of the assembly disk 5, so that the second assembly hole 36 is aligned with the position of the first assembly hole 51, and then a screw from the outside is used to pass through the second assembly hole 36 and connect and fix it to the first assembly hole 51, so as to realize the assembly and fixation of the driven gear 35 on the assembly disk 5. The assembly disk 5 is respectively inserted and fixed in the two positioning grooves 21 through two positioning bosses 52, and the two magnet blocks 54 are correspondingly installed in the two magnet assembly grooves 53, and the inner groove wall of the magnet assembly groove 53 is used to contact the outer wall of the clamping magnet block 54, and then cooperate with the outside The magnet block 54 is assembled and fixed in the magnet assembly groove 53 by the fastener. Preferably, the magnet block 54 is made of neodymium iron boron magnet. As the strongest permanent magnet currently available, the neodymium iron boron magnet has an extremely high magnetic field strength. The magnet block 54 protrudes into and is magnetically fixed in the accommodating groove 22, and then is fixed in the locating groove 21 by the positioning boss 52, and the magnet block 54 is fixed in the accommodating groove 22, thereby increasing the contact area and improving the connection stability between the assembly disk 5 and the disk head 2, so that the driven gear 35 can drive the entire disk head 2 to rotate smoothly with the help of the assembly disk 5.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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 gear transmission constant tension mechanism, characterized in that: It includes a frame, a disk head rotatably arranged on the frame, a gear 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 gear driving device. The gear driving 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 driving gear connected to the output end of the reducer, and a driven gear arranged on the disk head. The driving gear is meshed with the driven gear for transmission.

2. A gear transmission constant tension mechanism according to claim 1, characterized in that: An assembly disk is arranged on the outer side of the disk head, the assembly disk is provided with a first assembly hole, the driven gear is provided with a second assembly hole used in conjunction with the first assembly hole, a positioning boss is convexly arranged on a side of the assembly disk close to the disk head, a positioning groove is concavely arranged on the outer wall of the disk head, the positioning boss protrudes into the positioning groove, the assembly disk is concavely arranged with a magnet assembly groove, the magnet assembly groove is provided with a magnet block, the outer wall of the disk head is concavely arranged with a receiving groove, the magnet block protrudes into the receiving groove.

3. A gear transmission constant tension mechanism according to claim 1, characterized in that: 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.

4. A gear transmission constant tension mechanism according to claim 3, 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.

5. The gear transmission constant tension mechanism according to claim 3, 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.

6. A gear transmission constant tension mechanism according to claim 3, 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.

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