CN109763219B - Independent even drawing frame for whisker - Google Patents
Independent even drawing frame for whisker Download PDFInfo
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- CN109763219B CN109763219B CN201910250918.4A CN201910250918A CN109763219B CN 109763219 B CN109763219 B CN 109763219B CN 201910250918 A CN201910250918 A CN 201910250918A CN 109763219 B CN109763219 B CN 109763219B
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- 230000007246 mechanism Effects 0.000 claims abstract description 114
- 239000000835 fiber Substances 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 229920000742 Cotton Polymers 0.000 claims abstract description 31
- 238000003825 pressing Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000009987 spinning Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000265 homogenisation Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses an independent leveling drawing frame for fiber strips, which comprises a fiber strip collector and a cotton feeding roller, wherein a plurality of self-leveling devices are arranged at the inlet side of the fiber strip collector, each self-leveling device is used for leveling one fiber strip, and the fiber strips are respectively leveled by the plurality of self-leveling devices and then are collected by the fiber strip collector and fed into the cotton feeding roller. The self-leveling device comprises a frame, a strip entering detection mechanism, a rear roller leveling mechanism, a front roller leveling mechanism and an electric controller; the strip entering detection mechanism detects parameters of a single strip; the back roller leveling mechanism comprises an upper back roller, a lower back roller, a back roller servo motor and a speed sensor, the front roller leveling mechanism comprises an upper front roller, a lower front roller, a front roller servo motor and a speed sensor, and the self-leveling device further comprises an upper roller pressure and upper roller gauge automatic adjusting device. The invention has high leveling precision, can ensure the integrity of single fiber, and has high leveling speed and high working efficiency.
Description
Technical Field
The invention relates to a drawing frame in the textile industry, and belongs to the technical field of textile machinery.
Background
Drawing is an important process of spinning and plays a decisive role in improving and improving spinning quality. The traditional drawing frame comprises a strand collector and a cotton feeding roller, wherein a plurality of strands are gathered by the strand collector and then fed into the cotton feeding roller, the cotton feeding roller sends the gathered bunched strands into a drafting zone, and the bunched strands are subjected to leveling treatment by utilizing the interaction of the rollers and leather rollers of the drafting zone. However, this conventional drawing frame has several disadvantages in operation: (1) Because the bundling strand is thicker, the inside and outside of the strand are not uniform in the leveling process, the leveling precision is low, and the leveling effect is poor; (2) Because the bundling fiber is thicker, the adjusting force is large in the leveling process, so that the fiber of the fiber is damaged greatly, the fiber is easy to break, and the integrity of the fiber is damaged; (3) Because the bundling strand is thicker, the speed is low in leveling and the working efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing the independent leveling drawing frame for the whisker strips, which has the advantages of high leveling precision, good leveling effect, small adjusting force during leveling, capability of ensuring the integrity of single fibers, high leveling speed and high working efficiency.
In order to solve the technical problems, the independent leveling drawing frame for the fiber strips comprises a fiber strip collector and a cotton feeding roller, wherein a plurality of fiber strips are collected by the fiber strip collector and then fed into the cotton feeding roller, a plurality of self-leveling devices are arranged at the fiber strip inlet side of the fiber strip collector, each self-leveling device is used for leveling one fiber strip, and the fiber strips are collected by the fiber strip collector and then fed into the cotton feeding roller after being respectively leveled by the plurality of self-leveling devices.
As a preferred embodiment of the present invention, the autoleveling device includes a frame, and a strip entering detecting mechanism, a rear roller leveling mechanism, a front roller leveling mechanism and an electric controller which are sequentially arranged along the running direction of the single strip; the strip entering detection mechanism detects parameters of single strips; the back roller leveling mechanism comprises an upper back roller, a lower back roller, a back roller servo motor and a back roller speed sensor, wherein the upper back roller and the lower back roller are opposite up and down, the back roller servo motor drives the lower back roller to rotate, the back roller speed sensor is arranged on the lower back roller, the upper back roller is propped against the lower back roller and can be arranged on the rack in a vertical movement manner, and the lower back roller is rotatably arranged on the rack; the front roller leveling mechanism comprises an upper front roller, a lower front roller, a front roller servo motor and a front roller speed sensor, wherein the upper front roller, the lower front roller, the front roller servo motor and the front roller speed sensor are arranged on the lower front roller, the upper front roller and the lower front roller are opposite up and down, the front roller is arranged on the frame in a propping manner and can move up and down, and the lower front roller is arranged on the frame in a rotating manner; the self-leveling device also comprises an upper roller pressure automatic adjusting device which is used for pressing the upper rear roller and the upper front roller downwards and can automatically adjust the pressure value, and an upper roller gauge automatic adjusting device which is used for automatically adjusting the distance between the upper rear roller and the upper front roller, wherein the strip entering detection mechanism, the rear roller servo motor, the rear roller speed sensor, the front roller servo motor, the front roller speed sensor, the upper roller pressure automatic adjusting device and the upper roller gauge automatic adjusting device are respectively and electrically connected with the electric controller.
As a preferred embodiment of the present invention, the autoleveling device further includes a strip-out detection mechanism disposed at a front side of the front roller leveling mechanism, the strip-out detection mechanism detecting parameters of the output strands processed by the rear roller leveling mechanism and the front roller leveling mechanism; the strip entering and exiting detection mechanism comprises a cotton guide, a supporting plate, a movable block and a force sensor; the cotton guide device comprises a support plate, an electric controller, a movable block, a force sensor, a movable block, a support plate and an electric controller.
As a preferred embodiment of the present invention, the automatic pressure adjusting device for the top roller includes a compression bar, a spring, a support, and a pressing mechanism, wherein the upper end of the compression bar and the spring are disposed in the support, the lower end of the compression bar extends out of the support and is propped against the shaft head of the top rear roller or the shaft head of the top front roller, a guide plate is fixedly mounted at the lower end of the support, the shaft head of the top rear roller or the shaft head of the top front roller is slidingly connected with the guide plate in the vertical direction, the support is fixedly mounted on the frame or is slidably mounted on the frame in the horizontal direction, and the pressing mechanism includes a push rod, a pressure sensor, and a driving mechanism; the lower end of the push rod and the pressure sensor are arranged in the support, the pressure sensor is positioned between the push rod and the spring, or the pressure sensor is positioned between the push rod and the spring, the driving mechanism drives the push rod to do linear motion in the support, and the driving mechanism and the pressure sensor are electrically connected with the electric controller.
As a preferred embodiment of the invention, the driving mechanism comprises a first motor and a first screw nut linear motion mechanism which is vertically arranged and driven by the first motor, the first motor is fixedly arranged on a roller bracket, the roller bracket is fixedly connected with the support, a push plate is fixedly arranged on a first nut in the first screw nut linear motion mechanism, the upper end of the push plate is fixedly connected with the push plate, and the first motor is electrically connected with the electric controller.
As a preferable implementation mode of the invention, the automatic top roller gauge adjusting device comprises a transverse moving plate and a transverse moving driving mechanism for driving the transverse moving plate to move transversely, wherein the transverse moving plate is fixedly connected with the support, and the transverse moving driving mechanism is electrically connected with the electric controller.
As a preferred embodiment of the present invention, the traverse driving mechanism includes a second motor and a second screw-nut linear motion mechanism horizontally arranged driven by the second motor, the second screw-nut linear motion mechanism includes a second screw and a second nut mounted on the second screw, the traverse plate is fixedly connected with the second nut, the second motor is fixedly mounted on the frame, and the second motor is electrically connected with the electric controller.
As a preferred embodiment of the invention, a guide bar frame is further arranged at the rear side of the strip entering detection mechanism, the guide bar frame comprises at least two pairs of roller groups which are arranged at intervals, each pair of roller groups consists of a guide bar roller and a pressing roller which is positioned above the guide bar roller and is abutted against the guide bar roller, the guide bar roller is rotatably arranged on the frame and is driven to rotate by a third motor, a single strip passes between the guide bar roller and the pressing roller, a tension detection mechanism for detecting the tension of the strip is arranged at the single strip position between the roller groups, and the third motor and the tension detection mechanism are electrically connected with the electric controller.
As a preferred embodiment of the present invention, the tension detecting mechanism includes an infrared emitter and an infrared receiver arranged in a horizontal direction, the infrared emitter and the infrared receiver are respectively installed at both sides of a single whisker, and the infrared emitter and the infrared receiver are electrically connected with the electric controller.
As a preferred embodiment of the present invention, the electric controller is a DDC digital controller or an ARM embedded industrial controller or an industrial personal computer or a PLC programmable controller having a man-machine operation interface.
After the technical scheme is adopted, the invention has the following beneficial effects:
According to the invention, each strand at the inlet side of the strand collector is independently homogenized by adopting an autoleveling device, and as the diameter of a single strand is small, the inside and outside of the strand can be ensured to be uniform during homogenization, the homogenization precision is high, the homogenization effect is good, the homogenization strength is low, the required adjustment force during homogenization is small, the strand fibers are not damaged, and the integrity of the single fibers is ensured; in addition, the single whisker has small diameter and is easy to be uniform, so that the uniformity speed is high, and the working efficiency is greatly improved.
The invention adopts an independent full-servo autoleveling device, and before the fiber strip is fed into the cotton roller, the fiber strip autoleveling function is realized, and a great amount of reconstruction cost of the traditional drawing frame is saved.
The invention does not change the original structure of the traditional drawing frame, does not damage the quality precision and the original process of the traditional drawing frame, ensures the reliability and the stability of the traditional drawing frame, and does not affect the maintenance of the traditional drawing frame.
The strip entering and exiting detection mechanism has high response speed and high detection precision, and the electric signals obtained by the force sensor are input into the electric controller for data processing, so that the quick and automatic leveling process can be conveniently realized.
The invention adopts electric control digitization to automatically adjust the pressure and the gauge of the upper roller, does not need to stop, ensures that the whisker strips do not generate stop defects, and ensures the continuity of equipment production.
The pressure value and the gauge value of the upper roller can be directly read on a human-machine operation interface, the pressure value and the gauge value of the upper roller can be observed and regulated in real time, the variation coefficient value of the evenness is reduced, the quality of the evenness is improved, and the defects that the traditional mode needs to adopt special tools for measurement and complex operation are overcome.
The intelligent control method is high in intelligent degree, simple and convenient to operate and capable of improving the product qualification rate.
The invention avoids the problems of uneven weight and uneven evenness, too large tension draft and too high breakage rate caused by long holding distance between the sliver inlet detection mechanism and the sliver guide roller and easy extra drafting of the sliver, greatly improves the production efficiency, greatly reduces sliver joints and further ensures the quality of finished yarns.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 is a schematic diagram of a single strand leveling drawing frame of the present invention.
Fig. 2 is a schematic structural view of the auto-leveling device according to the present invention.
Fig. 3 is a schematic structural diagram of a strip-in and strip-out detecting mechanism in the present invention.
Fig. 4 is a schematic diagram of a detection state of the strip-in and strip-out detection mechanism in the present invention.
Fig. 5 is a schematic structural view of an automatic pressure adjusting device for top rollers in the present invention.
FIG. 6 is a schematic view of a compression bar according to the present invention.
Fig. 7 is a schematic view of a structure of the support of the present invention.
Fig. 8 is a schematic structural view of the push rod according to the present invention.
FIG. 9 is a schematic diagram of a pressure sensor according to the present invention.
Fig. 10 is a schematic front view of a guide plate according to the present invention.
Fig. 11 is a schematic side view of a guide plate in the present invention.
Fig. 12 is a schematic structural view of an automatic gauge length adjusting device for top rollers according to the present invention.
Fig. 13 is a schematic top view of the top roller gauge automatic adjusting device of the present invention.
Fig. 14 is a schematic view of an installation structure of the guide bar frame and the tension detecting mechanism in the present invention.
Detailed Description
Referring to fig. 1 to 14, an individual filament leveling drawing frame includes a filament collector 22 and a cotton feeding roller 31, a plurality of filaments 8 are collected by the filament collector 22 and fed to the cotton feeding roller 31, a plurality of auto-leveling devices i are disposed at the filament inlet side of the filament collector 22, each auto-leveling device i performs leveling treatment on one filament 8, and the plurality of filaments 8 are collected by the filament collector 22 and fed to the cotton feeding roller 31 after being respectively leveled by the plurality of auto-leveling devices i.
As a preferred embodiment of the present invention, as shown in fig. 2 to 14, the auto-leveling device i includes a frame 7, and a strip-entering detecting mechanism a, a rear roller leveling mechanism B, a front roller leveling mechanism C, and an electric controller E, which are sequentially disposed along the running direction of the single strip 8; the sliver-in detection mechanism A detects parameters of the single sliver 8, wherein the parameters comprise spinning varieties, spinning numbers, fiber lengths, linear density, volume and the like of the single sliver 8; the back roller leveling mechanism B comprises an upper back roller 1, a lower back roller 2, a back roller servo motor 3 for driving the lower back roller 2 to rotate and a back roller speed sensor arranged on the lower back roller 2, wherein the upper back roller 1 is propped against the lower back roller 2 and is arranged on the frame 7 in a manner of moving up and down, and the lower back roller 2 is arranged on the frame 7 in a manner of rotating through a bearing seat; the front roller leveling mechanism C comprises an upper front roller 4, a lower front roller 5, a front roller servo motor 6 for driving the lower front roller 5 to rotate and a front roller speed sensor arranged on the lower front roller 5, wherein the upper front roller 4 is propped against the lower front roller 5 and is arranged on the frame 7 in a manner of moving up and down, and the lower front roller 5 is arranged on the frame 7 in a manner of rotating through a bearing seat; the lower back roller 2 and the lower front roller 5 are parallel to each other and are arranged at intervals, the autoleveller I also comprises an upper roller pressure automatic regulating device which is used for downwards pressing the upper back roller 1 and the upper front roller 4 and can automatically regulate the pressure value, and an upper roller gauge automatic regulating device which is used for automatically regulating the distance between the upper back roller 1 and the upper front roller 4, and the strip entering detection mechanism A, the back roller servo motor 3, the back roller speed sensor, the front roller servo motor 6, the front roller speed sensor, the upper roller pressure automatic regulating device and the upper roller gauge automatic regulating device are respectively electrically connected with the electric controller E, wherein the back roller speed sensor and the front roller speed sensor are not shown in the figure. In the present invention, the frame 7 may be a frame of a drawing frame.
In the present invention, the electric controller E is preferably a DDC digital controller or an ARM embedded industrial controller or an industrial personal computer or a PLC programmable controller having a man-machine operation interface 27, but other types of controllers may be used.
As a preferred embodiment of the present invention, as shown in fig. 2, 3 and 4, the autoleveling device i further includes a strip-out detecting mechanism D disposed at the front side of the front roller leveling mechanism C, the strip-out detecting mechanism D detecting parameters of the output strands processed by the rear roller leveling mechanism B and the front roller leveling mechanism C, the parameters including weight unevenness, evenness, etc. of the output strands; the strip entering and exiting detection mechanism A and D comprises a cotton guide 9, a supporting plate 10, a movable block 11 and a force sensor 12; the bottom of the cotton guide 9 is provided with a whisker channel 9-1, the supporting plate 10 is fixedly connected with the frame 7 through bolts or welding, the cotton guide 9 is fixedly arranged above the supporting plate 10, in the invention, the cotton guide 9 can be fixedly connected with the supporting plate 10 through connecting pieces such as angle irons and the like and arranged above the supporting plate 10, the angle irons are not shown in the figure, and the cotton guide 9 can also be fixedly arranged on the frame 7; the supporting plate 10 is provided with a through hole 10a, the through hole 10a and the movable block 11 are positioned below the strand passage 9-1, the movable block 11 can preferably pass through the through hole 10a, the movable block 11 is not contacted with the supporting plate 10, the force sensor 12 is fixedly connected with the frame 7 through bolts, the force sensor 12 is positioned below the movable block 11, the inductive head 12a of the force sensor 12 is abutted against the movable block 11, and the force sensor 12 is electrically connected with the electric controller E. In operation, when the single fiber 8 passes through the fiber channel 9-1 of the cotton guide 9, the cotton guide 9 tightens the single fiber 8, the single fiber 8 is gathered in the fiber channel 9-1, the thickness of the single fiber 8 can squeeze the movable block 11, the movable block 11 moves up and down to transmit the pressure to the force sensor 12, and the force sensor 12 converts the force signal into an electric signal to be transmitted to the electric controller E.
In the present invention, the strip-in and strip-out detecting mechanisms a and D may also have other structures, for example, a cotton guide, a supporting plate and a force sensor, which are sequentially arranged from top to bottom, where the supporting plate is slidably connected to the frame 7, and an inductive head of the force sensor abuts against the supporting plate, which is not shown in the figure.
As a preferred embodiment of the present invention, as shown in fig. 5 to 11, the automatic pressure adjusting device for the top roller includes a pressing rod 13, a spring 14, a support 15, and a pressing mechanism 16, where the support 15 may be a rectangular support with a through hole 15a in the center, or may be a cylindrical support with a through hole 15a in the center, or may be other shapes, not shown in the drawings, the upper end of the pressing rod 13 and the spring 14 are disposed in the support 15, the lower end of the pressing rod 13 extends out of the support 15 and abuts against the head 1a of the top rear roller 1 or the head 4a of the top front roller 4, a guide plate 17 is fixedly mounted at the lower end of the support 15, the head 1a of the top rear roller 1 or the head 4a of the top front roller 4 is slidably connected with the guide plate 17 in the vertical direction, in the present invention, the guide plate 17 is preferably in an angle-shaped shape, the lower end of the support 15 is fixedly connected with the bottom plate of the guide plate 17 by a screw, a through hole 17a through which the pressing rod 13 passes is disposed on the bottom plate of the guide plate 17, a rectangular head 17b is disposed on the guide plate 17, and the rectangular head 1 b is disposed in the vertical direction of the rectangular head 1 b is connected with the rectangular head 1 b of the front roller 17 b; the support 15 is fixedly mounted on the frame 7 through bolts or welding or is slidably mounted on the frame 7 in the horizontal direction through a conventional sliding block chute or sliding block guide rail mechanism, in the invention, when the support 15 of the upper rear roller 1 is fixedly mounted on the frame 7, the support 15 of the upper front roller 4 is slidably mounted on the frame 7 in the horizontal direction, and vice versa, of course, the supports 15 of the upper rear roller 1 and the upper front roller 4 can be simultaneously slidably mounted on the frame 7 in the horizontal direction, and the pressurizing mechanism 16 comprises a push rod 16-1, a pressure sensor 16-2 and a driving mechanism; the lower end of the push rod 16-1 and the pressure sensor 16-2 are arranged in the support 15, the pressure sensor 16-2 is positioned between the push rod 16-1 and the spring 14, or the pressure sensor 16-2 is positioned between the push rod 13 and the spring 14, the driving mechanism drives the push rod 16-1 to do linear motion in the support 15, and the driving mechanism and the pressure sensor 16-2 are electrically connected with the electric controller E.
In the present invention, as shown in fig. 5, the driving mechanism preferably includes a first motor 16-3 and a first screw nut linear motion mechanism vertically arranged and driven by the first motor 16-3, the first motor 16-3 is fixedly mounted on a roller bracket 18 through a mounting plate 18a, the roller bracket 18 is fixedly connected with the support 15 through bolts or welding, the first screw nut linear motion mechanism includes a first screw 16-6 and a first nut 16-4, in operation, the first screw 16-6 is driven to rotate by the first motor 16-3 through a speed reducer, a push plate 16-5 is welded or otherwise fixed on the first nut 16-4 in the first screw nut linear motion mechanism, the upper end of the push plate 16-1 is fixedly connected with the push plate 16-5 through bolts, and the first motor 16-3 is electrically connected with the electric controller E. When the device works, the first motor 16-3 is started by the electric controller E so as to drive the first screw rod 16-6 to rotate, the first nut 16-4 and the push plate 16-5 move linearly, the push rod 16-1 and the pressure sensor 16-2 are pushed to compress or relax the spring 14, the elastic force generated by the spring 14 is added to the shaft head 1a of the upper rear roller 1 or the shaft head 4a of the upper front roller 4 through the pressure rod 13, so that the pressure adjustment is carried out on the upper rear roller 1 and the upper front roller 4, the compression amount of the spring 14 is in direct proportion to the elastic force, the magnitude of the elastic force is converted into an electric signal by the pressure sensor 16-2 to be transmitted to the electric controller E, and the electric controller E displays the pressure values of the upper rear roller 1 and the upper front roller 4 on the operation interface 27.
As a preferred embodiment of the present invention, as shown in fig. 12 and 13, the automatic top roller gauge adjusting device includes a traversing plate 19 and a traversing driving mechanism for driving the traversing plate 19 to make a traversing motion, the traversing plate 19 is fixedly connected to the support 15 by bolts or welding, and the traversing driving mechanism is electrically connected to the electric controller E.
In the present invention, as shown in fig. 13, the traversing driving mechanism preferably includes a second motor 20 and a second screw nut linear motion mechanism horizontally arranged driven by the second motor 20, the second screw nut linear motion mechanism includes a second screw 21-1 and a second nut 21-2 mounted on the second screw 21-1, in operation, the second screw 21-1 is driven to rotate by the second motor 20 via a speed reducer, the traversing plate 19 is fixedly connected with the second nut 21-2 by welding or other means, the second motor 20 is fixedly mounted on the frame 7, and the second motor 20 is electrically connected with the electric controller E. When the device works, the second motor 20 is started by the electric controller E so as to drive the second screw rod 21-1 to rotate, so that the second nut 21-2 and the traversing plate 19 do horizontal traversing motion, thereby pushing the upper rear roller 1 and/or the upper front roller 4 to traverse, and the distance value between the upper rear roller 1 and the upper front roller 4 is displayed on the operation interface 27 by the electric controller E. In the present invention, it is preferable to mount the displacement sensor 28 on the roller frame 18 or the frame 7, and the displacement sensor 28 is electrically connected to the electric controller E, so that the gauge value between the upper rear roller 1 and the upper front roller 4 can be directly obtained, or the displacement sensor is not mounted, and the electric controller E can obtain the gauge value through calculation.
In the present invention, the traversing driving mechanism preferably further comprises a horizontal guide rail 29 and a sliding block 30, wherein the horizontal guide rail 29 is preferably fixedly installed on the frame 7, the sliding block 30 is fixedly installed on the traversing plate 19, and the sliding block 30 is slidably connected with the horizontal guide rail 29.
As a preferred embodiment of the present invention, as shown in fig. 2 and 14, a sliver rack is further disposed at the rear side of the sliver detecting mechanism a, the sliver rack includes at least two pairs of roller sets disposed at intervals, each pair of roller sets is composed of a sliver roller 23 and a pressing roller 24 disposed above the sliver roller 23 and abutted against the sliver roller, the sliver roller 23 is rotatably mounted on the frame 7 and is driven to rotate by a third motor, a single sliver 8 passes between the sliver roller 23 and the pressing roller 24, a tension detecting mechanism for detecting sliver tension is disposed at the single sliver 8 between the roller sets, and the third motor and the tension detecting mechanism are electrically connected with the electric controller E.
In the present invention, as shown in fig. 14, the tension detecting mechanism preferably includes an infrared emitter 25 and an infrared receiver 26 arranged in a horizontal direction, the infrared emitter 25 and the infrared receiver 26 being respectively installed at both sides of the single strand 8, and the infrared emitter 25 and the infrared receiver 26 being electrically connected to the electric controller E. When the tension of the single fiber 8 is normal, the single fiber 8 continuously passes through the area between the optical paths of the infrared emitter 25 and the infrared receiver 26, the signal sent by the infrared emitter 25 is blocked by the single fiber 8, the infrared receiver 26 cannot receive the signal, and only when the tension of the single fiber 8 is increased, the single fiber 8 is reduced in arc, the infrared receiver 26 receives the signal sent by the infrared emitter 25 because the signal is not blocked by the single fiber 8, so that the detection and judgment of the tension of the single fiber 8 are realized, and at the moment, the electric controller E accelerates the rotation speed of the guide roller 23 through a third motor, and maintains the normal arc, namely, the normal tension is maintained.
The method for autoleveling individual fibers 8 by the autoleveling device I of the invention comprises the following steps: (1) Inputting process preset parameters of the single fiber sliver 8 to be homogenized into an operation interface 27 of the electric controller E, wherein the parameters comprise spinning varieties, spinning numbers, fiber lengths, linear densities, volumes and the like of the single fiber sliver 8, and the electric controller E automatically adjusts the pressurizing pressure values of the upper rear roller 1 and the upper front roller 4 and the interval distance between the upper rear roller 1 and the upper front roller 4 according to the process preset parameters of the single fiber sliver 8; in the step, the electric controller E automatically adjusts the pressurizing pressure values of the upper rear roller 1 and the upper front roller 4 according to the linear density or the volume parameter of the single fiber strand 8, wherein the pressurizing pressure values are in direct proportion to the linear density or the volume; the electric controller E automatically adjusts the interval distance between the upper rear roller 1 and the upper front roller 4 according to the fiber length parameter of the single fiber strand 8, so that the interval distance between the upper rear roller 1 and the upper front roller 4 is slightly larger than or equal to the fiber length; (2) The electric controller E controls the strip feeding detection mechanism A to detect the fixed-length linear density and/or the volume of the single fiber strip 8, and transmits detection data to the electric controller E, the electric controller E compares the detected fixed-length linear density and/or the volume data of the single fiber strip 8 with the linear density and/or the volume data preset by the process and calculates the difference delta between the fixed-length linear density and/or the volume data, if the difference delta is larger than zero, when the single fiber strip 8 corresponding to the detection data reaches between the rear roller leveling mechanism B and the front roller leveling mechanism C, the electric controller E controls the rotation speed ratio between the lower rear roller 2 and the lower front roller 5 by controlling the rotation speeds of the rear roller servo motor 3 and the front roller servo motor 6; if the difference delta is smaller than zero, when the single fiber strand 8 corresponding to the detection data reaches the position between the rear roller leveling mechanism B and the front roller leveling mechanism C, the electric controller E controls and reduces the rotation speed ratio between the lower rear roller 2 and the lower front roller 5 by controlling the rotation speeds of the rear roller servo motor 3 and the front roller servo motor 6, so that the single fiber strand 8 is leveled.
After being respectively homogenized by the plurality of self-leveling devices I, the strands 8 are collected by the strand collector 22 and then fed into the cotton feeding roller 31, and the cotton feeding roller 31 sends the collected and bundled and homogenized strands into the drafting zone F and then outputs the strands.
Through trial, the invention has high leveling precision and good leveling effect, can ensure the integrity of single fibers, has high leveling speed and high working efficiency, and achieves good effect.
Claims (10)
1. The utility model provides a single even drawing frame of whisker, includes whisker collector (22) and gives cotton roller (31), a plurality of whisker (8) are through after whisker collector (22) gathers feeding cotton roller (31), its characterized in that: a plurality of autoleveling devices (I) are arranged at the strand inlet side of the strand collector (22), each autoleveling device (I) performs leveling treatment on one strand (8), and the strands (8) are respectively subjected to leveling treatment by the autoleveling devices (I) and then are gathered by the strand collector (22) and fed into the cotton feeding roller (31).
2. The individual filament leveling drawing frame of claim 1, wherein: the self-leveling device (I) comprises a frame (7), a strip entering detection mechanism (A), a rear roller leveling mechanism (B), a front roller leveling mechanism (C) and an electric controller (E), wherein the strip entering detection mechanism (A), the rear roller leveling mechanism (B), the front roller leveling mechanism (C) and the electric controller (E) are sequentially arranged along the running direction of a single strip (8); the strip entering detection mechanism (A) detects parameters of the single fiber strip (8); the rear roller leveling mechanism (B) comprises an upper rear roller (1), a lower rear roller (2) which are opposite up and down, a rear roller servo motor (3) which drives the lower rear roller (2) to rotate, and a rear roller speed sensor which is arranged on the lower rear roller (2), wherein the upper rear roller (1) props against the lower rear roller (2) and can be arranged on the frame (7) in an up-and-down moving way, and the lower rear roller (2) is arranged on the frame (7) in a rotating way; the front roller leveling mechanism (C) comprises an upper front roller (4), a lower front roller (5), a front roller servo motor (6) for driving the lower front roller (5) to rotate and a front roller speed sensor arranged on the lower front roller (5), wherein the upper front roller (4) is propped against the lower front roller (5) and is arranged on the frame (7) in a manner of moving up and down, and the lower front roller (5) is arranged on the frame (7) in a manner of rotating; the lower back roller (2) and the lower front roller (5) are parallel to each other and are arranged at intervals, the self-leveling device (I) further comprises an upper roller pressure automatic adjusting device which is used for pressing the upper back roller (1) and the upper front roller (4) downwards and can automatically adjust the pressure value, and an upper roller gauge automatic adjusting device which is used for automatically adjusting the distance between the upper back roller (1) and the upper front roller (4), and the strip entering detection mechanism (A), the back roller servo motor (3), the back roller speed sensor, the front roller servo motor (6), the front roller speed sensor, the upper roller pressure automatic adjusting device and the upper roller gauge automatic adjusting device are respectively electrically connected with the electric controller (E).
3. The individual filament leveling drawing frame of claim 2, wherein: the self-leveling device (I) further comprises a strip outlet detection mechanism (D) arranged on the front side of the front roller leveling mechanism (C), and the strip outlet detection mechanism (D) detects parameters of the output strips processed by the rear roller leveling mechanism (B) and the front roller leveling mechanism (C); the strip entering and exiting detection mechanisms (A, D) comprise a cotton guide (9), a supporting plate (10), a movable block (11) and a force sensor (12); the cotton guide device is characterized in that a whisker channel (9-1) is arranged at the bottom of the cotton guide device (9), the supporting plate (10) is fixedly connected with the frame (7), the cotton guide device (9) is fixedly installed above the supporting plate (10), a through hole (10 a) is formed in the supporting plate (10), the through hole (10 a) and the movable block (11) are located below the whisker channel (9-1), the force sensor (12) is fixedly connected with the frame (7), the force sensor (12) is arranged below the movable block (11), a sensing head (12 a) of the force sensor (12) abuts against the movable block (11), and the force sensor (12) is electrically connected with the electric controller (E).
4. The individual filament leveling drawing frame of claim 2, wherein: the automatic pressure adjusting device for the upper roller comprises a pressing rod (13), a spring (14), a support (15) and a pressurizing mechanism (16), wherein the upper end of the pressing rod (13) and the spring (14) are arranged in the support (15), the lower end of the pressing rod (13) extends out of the support (15) to be propped against a shaft head (1 a) of an upper rear roller (1) or a shaft head (4 a) of an upper front roller (4), a guide plate (17) is fixedly arranged at the lower end of the support (15), the shaft head (1 a) of the upper rear roller (1) or the shaft head (4 a) of the upper front roller (4) is in sliding connection with the guide plate (17) in the vertical direction, the support (15) is fixedly arranged on a frame (7) or is slidably arranged on the frame (7) in the horizontal direction, and the pressurizing mechanism (16) comprises a push rod (16-1), a pressure sensor (16-2) and a driving mechanism; the lower end of the push rod (16-1) and the pressure sensor (16-2) are arranged in the support (15), the pressure sensor (16-2) is positioned between the push rod (16-1) and the spring (14), or the pressure sensor (16-2) is positioned between the push rod (13) and the spring (14), the driving mechanism drives the push rod (16-1) to do linear motion in the support (15), and the driving mechanism and the pressure sensor (16-2) are electrically connected with the electric controller (E).
5. The individual filament arrangement drawing frame of claim 4, wherein: the driving mechanism comprises a first motor (16-3) and a first screw nut linear motion mechanism which is vertically arranged and driven by the first motor (16-3), the first motor (16-3) is fixedly arranged on a roller support (18), the roller support (18) is fixedly connected with a support (15), a push plate (16-5) is fixed on a first nut (16-4) in the first screw nut linear motion mechanism, the upper end of the push plate (16-1) is fixedly connected with the push plate (16-5), and the first motor (16-3) is electrically connected with an electric controller (E).
6. The individual filament arrangement drawing frame of claim 4, wherein: the automatic upper roller gauge adjusting device comprises a transverse moving plate (19) and a transverse moving driving mechanism for driving the transverse moving plate (19) to move transversely, wherein the transverse moving plate (19) is fixedly connected with the support (15), and the transverse moving driving mechanism is electrically connected with the electric controller (E).
7. The individual filament leveling drawing frame of claim 6, wherein: the transverse moving driving mechanism comprises a second motor (20) and a second screw-nut linear motion mechanism which is horizontally arranged by the second motor (20), the second screw-nut linear motion mechanism comprises a second screw (21-1) and a second nut (21-2) arranged on the second screw (21-1), the transverse moving plate (19) is fixedly connected with the second nut (21-2), the second motor (20) is fixedly arranged on the frame (7), and the second motor (20) is electrically connected with the electric controller (E).
8. The individual filament leveling drawing frame of claim 2, wherein: the strip feeding detection mechanism is characterized in that a strip guide frame is further arranged at the rear side of the strip feeding detection mechanism (A), the strip guide frame comprises at least two pairs of roller groups which are arranged at intervals, each pair of roller groups consists of a strip guide roller (23) and a pressing roller (24) which is positioned above the strip guide roller (23) and is abutted against the strip guide roller, the strip guide roller (23) is rotatably arranged on the frame (7) and is driven to rotate by a third motor, a single strip (8) passes between the strip guide roller (23) and the pressing roller (24), a tension detection mechanism for detecting the tension of the strip is arranged at the single strip (8) between the roller groups, and the third motor and the tension detection mechanism are electrically connected with the electric controller (E).
9. The individual filament leveling drawing frame of claim 8, wherein: the tension detection mechanism comprises an infrared emitter (25) and an infrared receiver (26) which are arranged in the horizontal direction, wherein the infrared emitter (25) and the infrared receiver (26) are respectively arranged on two sides of a single whisker (8), and the infrared emitter (25) and the infrared receiver (26) are electrically connected with the electric controller (E).
10. A whisker individual leveling drawing frame according to any one of claims 2 to 9, wherein: the electric controller (E) is a DDC digital controller with a man-machine operation interface (27), an ARM embedded industrial controller, an industrial personal computer or a PLC programmable controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910250918.4A CN109763219B (en) | 2019-03-29 | 2019-03-29 | Independent even drawing frame for whisker |
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| CN201910250918.4A CN109763219B (en) | 2019-03-29 | 2019-03-29 | Independent even drawing frame for whisker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113913978B (en) * | 2021-11-15 | 2023-01-31 | 常州宏大智能装备产业发展研究院有限公司 | Device and method for automatically adjusting and leveling strands |
| CN114351302A (en) * | 2021-12-31 | 2022-04-15 | 浙江新景和纺织科技有限公司 | Intelligent yarn auto-leveling device and operation method |
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