CN210066013U

CN210066013U - Drawing frame for textile

Info

Publication number: CN210066013U
Application number: CN201920418812.6U
Authority: CN
Inventors: 顾金华
Original assignee: Changzhou Hongda Intelligent Equipment Industry Development Research Institute Co Ltd
Current assignee: Changzhou Hongda Intelligent Equipment Industry Development Research Institute Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-02-14
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses a drawing frame is used in weaving, drawing frame include the cotton feeding roller, are equipped with one at the palpus strip import side of cotton feeding roller and carry out the even processing and will handle the output palpus strip after and regard as the independent auto-leveling device of the palpus strip of cotton feeding roller feeding, send into the palpus strip of feeding for the cotton roller and export after the draft is only made in the draft zone. The independent auto-leveling device comprises a strip entering detection mechanism, a back roller leveling mechanism, a front roller leveling mechanism, a strip outlet detection mechanism and an electric controller; 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; the output sliver detecting mechanism detects the parameters of output sliver and the cotton feeding roller has speed sensor. The utility model discloses do not change traditional drawing frame transmission system, realized good palpus strip auto-leveling function.

Description

Drawing frame for textile

Technical Field

The utility model relates to a drawing frame of textile industry belongs to spinning machine technical field.

Background

Drawing is an important process of spinning and plays a decisive role in improving and improving spinning quality. In the working process of a traditional drawing frame, the interaction of a roller and a leather roller in a drafting zone is utilized to combine and draft the dispersed strands such as cotton slivers, when the thickness and the density of the strands fed into the drawing frame are changed, uneven weight and deviation of the drawn strands can occur, the indexes such as uneven rate CV% of the drawn strands are influenced, and the quality of finished yarns is reduced; furthermore, the drawing action of the traditional drawing frame can also produce uneven drafting on the strands, and the problems can not be solved by the traditional drawing frame.

Chinese utility model patent ZL201520515712.7 discloses a drawing frame digit leveling control system, and it is connected and receives the output signal of leveling controller through servo motor controller and leveling controller electricity, and servo motor controller is connected with the servo motor electricity of control draft roller, reaches the neat and orderly effect of palpus strip that stability is good, the accuracy is high. However, the leveling control system needs to change the transmission system of the drawing frame on site, which not only wastes time and has large change workload, but also destroys the quality precision and the original process of the drawing frame equipment, reduces the reliability and the stability of the equipment and increases the maintenance cost of the drawing frame.

The Chinese utility model patent ZL02257171.X discloses a short segment drawing auto-leveling control device, and its leveling execution part includes brake band-type brake circuit, servo mechanism and leveling differential case. In the self-leveling control device, a fixed transmission connection is arranged at the front and the rear of a speed changing area, a fixed speed is input into a speed changing part, the speed changing part is provided with the speed changing of a servo motor, and the two speeds are combined through a mechanical leveling differential box to fulfill the leveling purpose. However, in the actual use process, the mechanical inertia of the mechanical leveling differential case is large, and the response time is long, so that the good strand leveling effect is difficult to realize.

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 under the condition that does not change traditional drawing frame transmission system, realizes good palpus strip auto-leveling function, practices thrift the drawing frame for weaving of a large amount of transformation costs.

In order to solve the technical problem, the utility model discloses a such drawing frame is used in weaving, the drawing frame is including giving the cotton roller of draft zone feeding whisker the whisker import side of giving cotton roller is equipped with one and carries out the even processing and will handle the output whisker after as the independent auto-adjustment even device of cotton roller feeding whisker, the output after the whisker of cotton roller with the feeding is sent into the draft zone and only is done the draft to the whisker of drawing frame.

As a preferred embodiment of the present invention, the independent auto-leveling device comprises a sliver feeding detection mechanism, a back roller leveling mechanism, a front roller leveling mechanism, a sliver discharging detection mechanism and an independently arranged or drawing frame electric controller, which are arranged in sequence along the running direction of the slivers; the device comprises a strip feeding detection mechanism, a back roller leveling mechanism, a back roller servo motor and a back roller speed sensor, wherein the strip feeding detection mechanism is used for carrying out parameter detection on input strands, and the back roller leveling mechanism comprises an upper back roller and a lower back roller which are arranged oppositely up and down, a back roller servo motor for driving the lower back roller to rotate and the back roller speed sensor arranged on the lower back roller; the front roller leveling mechanism comprises an upper front roller and a lower front roller which are opposite up and down, a front roller servo motor for driving the lower front roller to rotate and a front roller speed sensor arranged on the lower front roller; go out strip detection mechanism and carry out the parameter detection to the output whisker strip after back roller leveling mechanism, the leveling mechanism of front roller are handled the last cotton feeding roller speed sensor that installs of cotton feeding roller, go into strip detection mechanism, back roller servo motor, back roller speed sensor, front roller servo motor, front roller speed sensor, cotton feeding roller speed sensor and go out strip detection mechanism respectively with the electric controller of independent setting or drawing frame is connected.

As a preferred embodiment of the present invention, the strip feeding detection mechanism comprises a concave-convex roller detection mechanism and a displacement sensor, the concave-convex roller detection mechanism comprises a concave roller and a convex roller which are vertically or horizontally arranged, and the displacement sensor is installed on the convex roller; the strip discharging detection mechanism comprises a tension detection roller and an eddy current sensor, and the displacement sensor and the eddy current sensor are respectively connected with the independently arranged or electric controller of the drawing frame.

As an optimal implementation scheme of the utility model the palpus strip output side of drawing frame still is equipped with the output palpus strip detection mechanism that carries out the parameter detection to the output palpus strip, output palpus strip detection mechanism with the electric controller of independent setting or drawing frame is connected.

As a preferred embodiment of the present invention, the electric controller of the independent setting or drawing frame is a DDC digital controller or an ARM embedded industrial controller or an industrial personal computer or a PLC programmable controller with a human-machine interface.

After the structure is adopted, the utility model discloses following beneficial effect has:

the utility model discloses do not change the former transmission system and the equipment technology structure of not taking the autolevelling tradition drawing frame, also do not destroy the quality precision and the original technology of former equipment, guarantee the reliability and the stability of former equipment, do not influence the maintenance of former equipment.

The utility model discloses must strip import side with independent autoleveller setting at the cotton feeding roller of traditional drawing frame, utilize the utility model discloses a full servo evener before the cotton feeding roller of must strip feeding traditional drawing frame, realizes must strip autoleveller function earlier, has saved a large amount of transformation costs to former equipment.

The utility model discloses simple structure, it is easy and simple to handle, improved the product percent of pass.

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 view of the drawing frame for textile use of the present invention.

Detailed Description

Referring to the drawing frame for textile shown in fig. 1, the drawing frame I comprises a feeding roller 1 for feeding strands into a drafting zone, an independent auto-leveling device II for leveling the strands and taking the processed output strands as the feeding strands of the feeding roller 1 is arranged at the inlet side of the strands of the feeding roller 1, and the feeding roller 1 of the drawing frame I sends the fed strands into the drafting zone for drafting only and outputting.

As a preferred embodiment of the present invention, as shown in fig. 1, the independent auto-leveling device ii includes a sliver feeding detection mechanism a, a back roller leveling mechanism B, a front roller leveling mechanism C, a sliver discharging detection mechanism D, and an electric controller E of the independent setting or drawing frame i, which are sequentially arranged along the running direction of the sliver 2; the input sliver detecting mechanism A detects parameters of the input sliver 2, wherein the parameters comprise input sliver spinning varieties, spinning number, fiber length, linear density, volume and the like; the back roller leveling mechanism B comprises an upper back roller 3 and a lower back roller 4 which are opposite up and down, a back roller servo motor 5 for driving the lower back roller 4 to rotate and a back roller speed sensor arranged on the lower back roller 4, the upper back roller 3 is preferably a leather roller, when the back roller leveling mechanism B works, the upper back roller 3 is abutted against the lower back roller 4, and the fiber strands 2 pass through between the upper back roller 3 and the lower back roller 4; the front roller leveling mechanism C comprises an upper front roller 6 and a lower front roller 7 which are opposite up and down, a front roller servo motor 8 for driving the lower front roller 7 to rotate and a front roller speed sensor arranged on the lower front roller 7, the upper front roller 6 is preferably a leather roller, when the front roller leveling mechanism C works, the upper front roller 6 is abutted against the lower front roller 7, and the fiber strands 2 pass through between the upper front roller 6 and the lower front roller 7; the strip discharging detection mechanism D detects parameters of the output strands processed by the rear roller leveling mechanism B and the front roller leveling mechanism C, wherein the parameters comprise weight unevenness, evenness unevenness and the like of the output strands; a cotton feeding roller speed sensor is installed on the cotton feeding roller 1, and the strip entering detection mechanism A, the rear roller servo motor 5, the rear roller speed sensor, the front roller servo motor 8, the front roller speed sensor, the cotton feeding roller speed sensor and the strip outlet detection mechanism D are respectively connected with the electric controller E of the independent setting or drawing frame I. 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, etc. having the human-machine interface 15.

As a preferred embodiment of the present invention, as shown in fig. 1, the entry detecting mechanism a can adopt an entry detecting mechanism of a traditional drawing frame, which includes a concave-convex roller detecting mechanism and a displacement sensor, the concave-convex roller detecting mechanism includes a concave roller 9 and a convex roller 10 that are vertically or horizontally disposed, the displacement sensor is installed on the convex roller 10, and the displacement sensor is connected with the electric controller E, not shown in the figure; when the device works, a plurality of, for example, 6 to 8 beard strips are input into a concave-convex roller detection mechanism through a beard collector 16, a concave roller 9 and a convex roller 10 rotate, the convex roller 10 is pressed against the concave roller 9 through pneumatic pressure, the concave roller and the convex roller form a measuring jaw, the position of the convex roller 10 is correspondingly changed due to the thickness change of the input beard strips 2 in the jaw, the displacement of the convex roller 10 is transmitted to a displacement sensor through a connecting rod mechanism, the displacement sensor generates voltage signals related to the thickness of the beard strips 2, an electric controller E compares the signals with a set standard value, calculates a difference value and stores the difference value, when the fed beard strips corresponding to the signals reach a beard strip speed change point of a draft area, namely, between a rear roller leveling mechanism B and a front roller leveling mechanism C, an electric controller E sends out signals, the rotating speed of a rear roller servo motor 5 is changed, namely, the rotating speed of a lower rear roller 4 is changed, thereby changing the rotating speed ratio of the lower back roller 4 and the lower front roller 7, namely changing the drafting multiple of the independent auto-leveling device II, correcting the deviation of the feeding strand 2 and enabling the feeding strand 2 to be leveled. The sliver outlet detection mechanism D can adopt a sliver outlet detection mechanism of a traditional drawing frame, and comprises a tension detection roller 11 and an eddy current sensor 12, wherein the eddy current sensor 12 is connected with the electric controller E. During operation, the strip output data is detected by the tension detection roller 11, the detection data is transmitted to the electric controller E by the eddy current sensor 12, and the quality indexes of the fiber strand are output by the electric controller E, wherein the quality indexes comprise the quality indexes such as the Uster evenness CV value of the fiber strand, the weight difference A of the fiber strand in a unit length such as 5m section, the weight unevenness H% of the fiber strand in a unit length such as 5m section, the spectrum circumference and the like.

As a preferred embodiment of the present invention, as shown in fig. 1, the beard strip output end of the drawing frame i is further provided with an output beard strip detection mechanism F for performing parameter detection on the output beard strip, and the output beard strip detection mechanism F is connected to the electric controller E. The output strand detection mechanism F comprises a tension detection roller 13 and an eddy current sensor 14, when the output strand detection mechanism F works, the output strand data is detected by the tension detection roller 13, the detection data is transmitted to an electric controller E by the eddy current sensor 14, the strand quality index is output by the electric controller E, and the qualified strand is output to a bobbin (not shown).

The utility model can accurately detect the uneven fragment in the feeding fiber strip, such as a cotton sliver, realize the rapid evenness of the fiber strip deviation by using the rapid response full-digital AC servo system, adopt the evenness mode of fixed length detection and fixed length control, can detect and control the shortest fragment of more than 1mm in the feeding fiber strip, and keep the stability of the drafting ratio under the condition that the uneven rate of the fiber strip meets the requirement; the utility model discloses control stability is good, and the degree of accuracy is high.

Claims

1. A drawing frame for textile use, said drawing frame (I) comprising a feed roller (1) for feeding slivers to a drafting zone, characterized in that: an independent auto-leveling device (II) for leveling the strands and feeding the processed output strands as the feeding strands to the cotton feeding roller (1) is arranged at the inlet side of the strands of the cotton feeding roller (1), and the feeding roller (1) of the drawing frame (I) sends the fed strands into a drafting zone for drafting only and then outputs the drawn strands.

2. A textile draw frame according to claim 1, wherein: the independent auto-leveling device (II) comprises a sliver inlet detection mechanism (A), a back roller leveling mechanism (B), a front roller leveling mechanism (C), a sliver outlet detection mechanism (D) and an electric controller (E) which is independently arranged or is arranged on the drawing frame (I) in sequence along the running direction of the strands (2); the device comprises a strip feeding detection mechanism (A) and a back roller leveling mechanism (B), wherein the strip feeding detection mechanism (A) is used for carrying out parameter detection on an input sliver (2), and the back roller leveling mechanism (B) comprises an upper back roller (3) and a lower back roller (4) which are opposite up and down, a back roller servo motor (5) for driving the lower back roller (4) to rotate and a back roller speed sensor arranged on the lower back roller (4); the front roller leveling mechanism (C) comprises an upper front roller (6) and a lower front roller (7) which are opposite up and down, a front roller servo motor (8) for driving the lower front roller (7) to rotate and a front roller speed sensor arranged on the lower front roller (7); go out strip detection mechanism (D) and carry out the parameter detection to the output whisker after back roller leveling mechanism (B), front roller leveling mechanism (C) are handled give and install cotton roller speed sensor on cotton roller (1), go into strip detection mechanism (A), back roller servo motor (5), back roller speed sensor, front roller servo motor (8), front roller speed sensor, give cotton roller speed sensor and go out strip detection mechanism (D) respectively with electric controller (E) of independent setting or drawing frame (I) are connected.

3. A textile draw frame according to claim 2, wherein: the strip feeding detection mechanism (A) comprises a concave-convex roller detection mechanism and a displacement sensor, the concave-convex roller detection mechanism comprises a concave roller (9) and a convex roller (10) which are arranged up and down or horizontally, and the displacement sensor is arranged on the convex roller (10); the strip discharging detection mechanism (D) comprises a tension detection roller (11) and an eddy current sensor (12), and the displacement sensor and the eddy current sensor (12) are respectively connected with the electric controller (E) of the independent setting or drawing frame (I).

4. A textile draw frame according to claim 2, wherein: an output sliver detection mechanism (F) for performing parameter detection on the output slivers is further arranged on the sliver output side of the drawing frame (I), and the output sliver detection mechanism (F) is connected with the independently arranged or electric controller (E) of the drawing frame (I).

5. A textile draw frame according to any one of claims 2 to 4, wherein: the electric controller (E) is a DDC digital controller with a man-machine operation interface, or an ARM embedded industrial controller, or an industrial personal computer or a PLC programmable controller.