CN210031001U - Device for detecting quality of fiber strands of fore-spinning equipment - Google Patents
Device for detecting quality of fiber strands of fore-spinning equipment Download PDFInfo
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- CN210031001U CN210031001U CN201920585319.3U CN201920585319U CN210031001U CN 210031001 U CN210031001 U CN 210031001U CN 201920585319 U CN201920585319 U CN 201920585319U CN 210031001 U CN210031001 U CN 210031001U
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Abstract
The utility model discloses a device for detecting the quality of a fiber strand of fore-spinning equipment, which comprises a first roller, a second roller, a swing arm and an elastic connecting piece; the device comprises a front spinning device, a front spinning device frame, a first roller, a second roller, a swing arm, an elastic connecting piece, a strand channel, a force sensor and a force sensor, wherein the first roller is directly or indirectly rotatably arranged on the front spinning device frame, the second roller is rotatably arranged on the swing arm, one end of the swing arm is rotatably arranged on the front spinning device frame, the other end of the swing arm is connected with one end of the elastic connecting piece, the strand channel is arranged between the first roller and the second roller, the strand quality detection device of the front spinning device further comprises the force sensor arranged on. The first roller is driven by a first motor to rotate, the second roller is driven by a second motor to rotate, and the rotation directions of the first roller and the second roller are opposite. The utility model discloses change and the data that change along with palpus strip linear density, thickness by force sensor direct detection elastic connection spare elastic force, obtain the change data value of palpus strip linear density, thickness fast accurately, improved palpus strip quality testing precision and real-time.
Description
Technical Field
The utility model relates to a detection device that preceding equipment of spinning used especially relates to a preceding equipment of spinning like carding machine, comber and various drawing frame input or output palpus strip quality detection device, belongs to weaving equipment technical field.
Background
Modern spinning projects place higher demands on the quality of the drawing process, for which reason many enterprises use drawing frames with an auto-leveling system. The auto-leveling is to adjust the instantaneous draft multiple of the variable draft zone according to the thickness and weight of the fiber strand to improve the uniformity of the fiber strand, reduce the weight deviation and uneven yarn evenness, and finally improve the yarn quality. The key of the quality of the autolevelling effect depends on the sensitivity and the accuracy of the concave-convex roller detection device on the linear density detection of the fiber strands, the stability of data and the environmental friendliness of the device, and the sensitivity, the accuracy, the stability and the environmental friendliness of the device directly influence the spinning quality. FIG. 4 is a schematic diagram of the conventional concavo-convex roller detecting mechanism, in which a swing arm OC rotates around a point O, an acting force F1 is applied to the swing arm at a point D due to the difference in linear density of the fed beard strips, a displacement sensor detects the displacement of the swing arm at a point E, the displacement represents the immediate value of the density of the beard strips, and a spring applies an acting force F2 to the swing arm at a point C at the tail end of the swing arm to maintain the normal pressure of the concavo-convex roller on the beard strips.
The present beard strip quality detection device, for example, chinese utility model patent ZL201720763365.9 discloses a drawing frame concavo-convex roller detection device, and its theory of operation is shown in fig. 4, and concavo-convex roller detection device utilizes the spring to exert operating pressure to the beard strip in the concavo-convex roller beard strip passageway, obtains beard strip thickness signal by displacement sensor, uses gear conveyer belt transmission to decide roller gear and activity roller gear. The detection device has the following defects in the working process:
firstly, the toothed belt transmits power, so that the vibration of the concave-convex roller is easily caused, the vibration is abnormal external excitation force for a spring part in the device, the spring generates forced simple harmonic vibration, the vibration is background noise of the displacement sensor, the detection of the displacement sensor is seriously interfered, thick and thin strands of the strands are easily generated, the quality of a cloth cover and the evenness of a finished yarn are influenced, and mechanical waves are caused;
secondly, the spring stiffness and the self inertia force of the spring can cause that a displacement sensor of the concave-convex roller detection assembly cannot timely and quickly reflect the change of the density of the required lines, so that a serious hysteresis effect is generated, and the leveling effect of the auto-leveling device is influenced;
thirdly, because the density variation of the fiber strand fed into the concave-convex roller detection device is small, only when the pre-tightening force is applied by the spring to enable the concave-convex roller fiber strand channel to generate pressing force larger than 75N, the displacement sensor of the concave-convex roller detection device can obtain usable electric signals; after the strands pass through the concave-convex rollers, 75N pressing force enables the strands to enter a drafting zone through the concave-convex rollers and still not be fully stretched, so that the strands are not beneficial to self-leveling and drafting; the more disadvantageous is that in order to facilitate the sufficient spreading of the strands, the autoleveller increases the distance between the concave-convex roller and the cotton feeding roller, however, the excessive distance causes the accidental drafting of the strands after the parameters are detected and stored, which greatly reduces the autoleveller effect and affects the product quality;
fourthly, for the application of the concave-convex roller detection mechanism, the fiber strands are not incompressible bodies, the displacement of the displacement sensor of the concave-convex roller detection assembly caused by the linear density of the fiber strands at the point E also depends on the elastic coefficient of the spring, and for the same linear density, the elastic coefficient is small, the displacement of the displacement sensor is large, otherwise, the displacement of the displacement sensor is small, so that the output of the displacement sensor only indirectly reflects the linear density of the fiber strands, the measurement error is large, and the data repeatability is poor.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to overcome prior art's is not enough, provides one kind and measures accurately, can in time react the change of palpus line density, thickness fast, is favorable to the autolevelling and the draft of palpus strip, uses reliable and stable preceding equipment of spinning palpus strip quality detection device.
In order to solve the technical problem, the utility model adopts the device for detecting the quality of the fiber strands of the fore-spinning equipment, which comprises a first roller, a second roller, a swing arm and an elastic connecting piece; the device comprises a first roller, a second roller, a swing arm, an elastic connecting piece, a strand channel, a force sensor and an electric controller or an independent electric controller of the front spinning device, wherein the first roller is directly or indirectly rotatably arranged on a frame of the front spinning device, the second roller is rotatably arranged on the swing arm, one end of the swing arm is rotatably arranged on the frame of the front spinning device, the other end of the swing arm is connected with one end of the elastic connecting piece, the strand channel is arranged between the first roller and the second roller, the strand quality detection device of the front spinning device further comprises the force sensor arranged on the elastic connecting piece, and the force sensor is electrically connected with the electric controller.
As a preferred embodiment of the present invention, the first roller is driven by the first motor to rotate, the second roller is driven by the second motor to rotate, and the rotation directions of the first roller and the second roller are opposite.
As a preferred embodiment of the present invention, the first roller is driven by a first motor to rotate, and the second roller is driven by the fiber strands to rotate; or the first roller and the second roller are driven by the fiber strands to rotate.
As a preferred embodiment of the utility model, this equipment must strip quality detection device spins before still includes displacement sensor, displacement sensor's one end fixed mounting spins in the front in the frame of equipment, displacement sensor's the other end with the arm body of swing arm offsets or links to each other.
As a preferred embodiment of the utility model, this equipment of spinning before must strip quality detection device still includes lever and cylinder, force sensor's one end with elastic connection spare's the other end links to each other, the one end of lever with the output shaft of cylinder links to each other, the other end of lever with force sensor's the other end links to each other, and the pole body of lever is installed in the frame of the equipment of spinning before with rotating.
As a preferred embodiment of the present invention, the electric controller or the independent electric controller of the front spinning device is a DDC digital controller or an ARM embedded industrial controller or an industrial personal computer or a PLC programmable controller.
In the utility model, the first roller is a concave roller, and the second roller is a convex roller; or the first roller is a convex roller, and the second roller is a concave roller.
After the structure is adopted, the utility model discloses following beneficial effect has:
the utility model discloses a direct detection flexible connectors's elastic force changes data along with palpus strip linear density, thickness change, and response speed is fast and direct, can in time react the change of palpus strip linear density, thickness fast, does not have conversion error, the detected signal that other accessory subassemblies brought and have the lag scheduling problem, has increased substantially palpus strip linear density, thickness detection precision and real-time, and then has improved the neat degree of palpus strip behind the drawing.
Because the utility model discloses the elastic force of direct detection elastic connecting piece changes data, and detection resolution ratio, detection precision promote greatly, and data repeatability is good.
The concave-convex roller of the utility model is directly driven by two motors respectively, or the first roller is driven by the first motor to rotate, and the second roller is driven by the beard strips to rotate; or the first roller and the second roller are driven by the beard strips to rotate, so that the problem that abnormal external exciting force caused by the fact that the toothed belt drives the concave-convex roller in the prior art acts on the spring to interfere detection is avoided, the resolution and the precision of detection data are improved, the whole device is good in vibration resistance, reliable and stable, and the evenness of the beard strips of the auto-leveling device is improved.
The utility model discloses the toothed belt of prior art has been abandoned, and the cleaning work of unsmooth roller subassembly has been simplified greatly in no toothed belt, avoids the toothed belt to adhere to unsmooth roller subassembly detected signal instability that the wadding brought, very easily produces thick, detail and the palpus strip quality problems that causes the mechanical wave for whole mechanism long-term operation is stable, guarantees the continuity of equipment production.
The utility model discloses friendly to the environment, the adaptation cotton textile industry that can be better measures during operational environment flying cotton fibre is many, the high adverse circumstances of dust content, and the good reliability is maintained conveniently, can ensure to detect normally going on.
Drawings
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the device for detecting the quality of the fiber strand of the fore-spinning device of the present invention.
Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.
Fig. 3 is a schematic cross-sectional view taken along line B-B in fig. 2.
Fig. 4 is a schematic diagram of the operation of a concavo-convex roller detecting mechanism in the prior art.
Detailed Description
Referring to fig. 1 to 3, the device for detecting the quality of the fiber strand of the front spinning device comprises a first roller 1, a second roller 2, a swing arm 3 and an elastic connecting piece 4; the device for detecting the quality of the fiber strand of the fore spinning equipment comprises a first roller 1, a second roller 2, a fiber strand channel 6 and a force sensor 7, wherein the first roller 1 is directly or indirectly rotatably arranged on a rack 5 of the fore spinning equipment through a bearing, the second roller 2 is rotatably arranged on a swing arm 3 through a bearing, one end 3a of the swing arm 3 is rotatably arranged on the rack 5 of the fore spinning equipment through a shaft 13, the other end 3b of the swing arm 3 is connected with one end 4a of an elastic connecting piece 4, the fiber strand channel 6 is arranged between the first roller 1 and the second roller 2, the fiber strand passes through the fiber strand channel 6 during operation, the device for detecting the quality of the fiber strand of the fore spinning equipment further comprises the force sensor 7 arranged on the elastic connecting piece 4, and the force. In the present invention, the elastic connecting member 4 is preferably a metal spring, such as a tension spring, etc., but an elastic connecting element such as a gas spring, a cylinder or rubber, etc. may also be adopted; in addition, the force sensor 7 may be installed at one end of the elastic connection member 4, such as the right or left end of the metal spring, or may be installed at a middle position of the elastic connection member 4. The electric controller or the independent electric controller of the fore-spinning device is preferably a DDC digital controller or an ARM embedded industrial controller or an industrial personal computer or a PLC programmable controller, not shown in the figure.
As a preferred embodiment of the present invention, as shown in fig. 2, the first roller 1 is driven by the first motor 8 to rotate, the second roller 2 is driven by the second motor 9 to rotate, and the rotation directions of the first roller 1 and the second roller 2 are opposite. Adopt such structure, can avoid adopting the cog belt to drive the unusual outside exciting force that unsmooth roller arouses among the prior art and act on the spring and disturb the detection, the utility model provides high resolution ratio and the precision of detection data.
As a preferred embodiment of the present invention, the first roller 1 is driven by the first motor 8 to rotate, and the second roller 2 is driven by the fiber strands to rotate; or the first roller 1 and the second roller 2 are driven by the fiber strands to rotate; or the second roller 2 is driven by a motor to rotate, and the first roller 1 is driven by the fiber strands to rotate, which is not shown in the figure.
As a preferred embodiment of the present invention, as shown in fig. 1, the device for detecting the quality of the fiber strand of the front spinning device further comprises a displacement sensor 10, one end of the displacement sensor 10 is fixedly mounted on the frame 5 of the front spinning device, and the other end of the displacement sensor 10 is abutted against or connected to the arm body of the swing arm 3. With this configuration, the detection accuracy can be improved.
As a preferred embodiment of the present invention, as shown in fig. 1, the device for detecting the quality of the fiber strand of the front spinning device further comprises a lever 11 and a cylinder 12, one end of the force sensor 7 is connected to the other end 4b of the elastic connecting member 4, one end 11a of the lever 11 is connected to the output shaft of the cylinder 12, the other end 11b of the lever 11 is connected to the other end of the force sensor 7, and the shaft of the lever 11 is rotatably mounted on the frame 5 of the front spinning device through a shaft 14. The utility model discloses in, other end 4b of elastic connection 4 or the other end of force sensor 7 also can directly link to each other with frame 5, perhaps other end 4b of elastic connection 4 or the other end of force sensor 7 directly with the output shaft of cylinder 12 links to each other.
In the utility model, the first roller 1 is a concave roller, and the second roller 2 is a convex roller; or the first roller 1 is a convex roller, and the second roller 2 is a concave roller.
As an optimized working process of the present invention, see fig. 2, the electric controller drives the first roller 1 and the second roller 2 to rotate simultaneously through the first motor 8 and the second motor 9, the beard strip passes through the beard strip channel 6 between the first roller 1 and the second roller 2, the elastic force of the elastic connecting member 4 directly detected by the force sensor 7 changes along with the linear density and the thickness of the beard strip, and the changed data value of the linear density and the thickness is obtained in time, quickly and accurately, thereby improving the detection precision and the real-time performance of the quality of the beard strip.
Claims (7)
1. A device for detecting the quality of a fiber strand of fore-spinning equipment comprises a first roller (1), a second roller (2), a swing arm (3) and an elastic connecting piece (4); first roller (1) directly or indirectly rotate and install in the front on frame (5) of spinning equipment, second roller (2) rotate and install in swing arm (3) are last, the one end (3 a) of swing arm (3) rotate and install in the front on frame (5) of spinning equipment, the other end (3 b) of swing arm (3) with one end (4 a) of elastic connection spare (4) link to each other, be equipped with whisker strip passageway (6) between first roller (1) and second roller (2), its characterized in that: the device for detecting the quality of the fiber strands of the front spinning equipment further comprises a force sensor (7) arranged on the elastic connecting piece (4), and the force sensor (7) is electrically connected with an electric controller or an independent electric controller of the front spinning equipment.
2. The device for detecting the quality of the fiber strand of the fore spinning equipment as claimed in claim 1, wherein: first roller (1) is rotated by first motor (8) drive, second roller (2) is rotated by second motor (9) drive, the rotation direction of first roller (1) and second roller (2) is opposite.
3. The device for detecting the quality of the fiber strand of the fore spinning equipment as claimed in claim 1, wherein: the first roller (1) is driven to rotate by a first motor (8), and the second roller (2) is driven to rotate by the fiber strands; or the first roller (1) and the second roller (2) are driven by the fiber strands to rotate.
4. The device for detecting the quality of the fiber strand of the fore spinning equipment as claimed in claim 1, wherein: the device for detecting the quality of the fiber strands of the front spinning equipment further comprises a displacement sensor (10), one end of the displacement sensor (10) is fixedly installed on a rack (5) of the front spinning equipment, and the other end of the displacement sensor (10) is abutted against or connected with the arm body of the swing arm (3).
5. The device for detecting the quality of the fiber strand of the fore spinning equipment as claimed in claim 1, wherein: the device for detecting the quality of the fiber strands of the front spinning equipment further comprises a lever (11) and a cylinder (12), one end of the force sensor (7) is connected with the other end (4 b) of the elastic connecting piece (4), one end (11 a) of the lever (11) is connected with an output shaft of the cylinder (12), the other end (11 b) of the lever (11) is connected with the other end of the force sensor (7), and a rod body of the lever (11) is rotatably installed on a rack (5) of the front spinning equipment.
6. The device for detecting the quality of the fiber strand of the fore spinning equipment as claimed in claim 1, wherein: the electric controller or the independent electric controller of the front spinning device is a DDC digital controller or an ARM embedded industrial controller or an industrial personal computer or a PLC programmable controller.
7. The device for detecting the quality of a fiber strand of a fore spinning apparatus according to any one of claims 1 to 6, wherein: the first roller (1) is a concave roller, and the second roller (2) is a convex roller; or the first roller (1) is a convex roller, and the second roller (2) is a concave roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585319.3U CN210031001U (en) | 2019-04-26 | 2019-04-26 | Device for detecting quality of fiber strands of fore-spinning equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585319.3U CN210031001U (en) | 2019-04-26 | 2019-04-26 | Device for detecting quality of fiber strands of fore-spinning equipment |
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| CN210031001U true CN210031001U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920585319.3U Active CN210031001U (en) | 2019-04-26 | 2019-04-26 | Device for detecting quality of fiber strands of fore-spinning equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913978A (en) * | 2021-11-15 | 2022-01-11 | 常州宏大智能装备产业发展研究院有限公司 | Whisker strip auto-leveling device and method |
-
2019
- 2019-04-26 CN CN201920585319.3U patent/CN210031001U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913978A (en) * | 2021-11-15 | 2022-01-11 | 常州宏大智能装备产业发展研究院有限公司 | Whisker strip auto-leveling device and method |
| 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 |
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