CN107675299B

CN107675299B - J-shaped fiber strip overturning and storing device

Info

Publication number: CN107675299B
Application number: CN201711119780.1A
Authority: CN
Inventors: 杨华明; 李界宏; 陈朝龙; 倪远; 铃木雅博; 金宏健; 赵云波; 杜培清; 贾坤
Original assignee: Jingwei Textile Machinery Co Ltd
Current assignee: Jingwei Textile Machinery Co Ltd
Priority date: 2017-11-14
Filing date: 2017-11-14
Publication date: 2023-05-09
Anticipated expiration: 2037-11-14
Also published as: CN107675299A

Abstract

The invention provides a J-shaped fiber strip overturning and storing device, which comprises a coiler, a J-shaped fiber strip overturning and storing device, a base and a storage quantity sensor, wherein the coiler is positioned at the inlet side of the J-shaped fiber strip overturning and storing device, the J-shaped fiber strip overturning and storing device is arranged on the base, and the storage quantity sensor is arranged at the outlet side of the J-shaped fiber strip overturning and storing device; the outlet side of the J-shaped fiber strip overturning storage device is lower than the inlet side and is not higher than the arc center line of the J-shaped bottom. By adopting the technical scheme, the fiber strips produced by the carding machine are directly conveyed to a drawing frame for production by the fiber strip conveying device after being turned over and stored by the device. So that the automatic connection of a plurality of carding machines and a drawing frame and the continuous production are possible.

Description

J-shaped fiber strip overturning and storing device

Technical Field

The invention relates to a J-shaped fiber strip overturning and storing device used in cotton spinning engineering and used for realizing automatic connection of a plurality of carding machines and a drawing frame and continuous production.

Background

In the existing cotton and cotton type chemical fiber spinning engineering, cotton slivers produced by carding machines are continuously and orderly looped in a bottomed cylindrical (or rectangular) raw sliver can. After one of the raw sliver cans is filled with fiber sliver, the carding machine is replaced by another sliver can for continuous production. The sliver cans filled with fiber sliver produced by the plurality of carding machines are transported to a sliver storage area. In the case of the drawing frame, the raw sliver cans filled with fiber sliver produced by different carding machines are transported to the drawing frame. And then processing by a drawing frame. The production process has the following characteristics: 1. the fiber strips produced by the carding machine are stored in the raw strip barrel in a segmented mode. 2. The cans filled with raw strips are transported to a drawing frame by manual or transportation equipment and then processed. 3. The sliver is first loaded into sliver can by carding machine and then drawn and processed on drawing frame. The production process not only occupies factory space, but also needs to be provided with a plurality of raw strip cans for storage and turnover. Moreover, the labor quantity and the labor intensity of operators are increased. In addition, operators can use the barrel at will to dope the barrel and other artificial factors, which brings difficulty to production management.

In order to realize continuous and automatic production from cotton carding process to drawing process. Many studies have been made by various textile machine technicians. Such as: at the end of the last eighties of the century in japan, continuous and automatic production from the carding process to the drawing process has been achieved. The fiber strip storage device used by the device does not need to finish orderly winding and overturning of the fiber strips. However, the output speed of the carding machine and the drawing frame produced at present is far higher than the level before thirty years, so that the sequential winding and turning of the fiber strips are finished, and the fiber strips are a necessary condition for being smoothly extracted by a conveying device. Therefore, the technology used by it cannot be fully applied to the existing equipment. At the beginning of this century, domestic textile machine technicians disclosed methods and apparatus for combining carding or combing with drawing processes (publication No. 1510183); methods and devices for dynamic storage of tampons based on the use of such coupling methods are also disclosed (publication number 1609291). In this design, a technical path for continuous and automated production from the carding process to the drawing process is indicated. However, the domestic design scheme is not applied because the sliver storage device cannot realize the overturning of the fiber sliver and other factors.

In recent years, the problem of labor is more and more prominent. The cotton spinning enterprises are more urgent in demands for continuous and automatic production from cotton carding to drawing. Continuous and automatic production from cotton carding to drawing is realized. The sliver produced by the carding machine is properly stored and turned over, so that the sliver is a key step for realizing continuous and automatic production from a carding process to a drawing process. However, in the prior art, there has not been a successful device for inverting and storing fiber strands.

In publication No. 1609291, method and device for dynamic storage of silver, the disclosed technical scheme is as follows: the cotton sliver output by the carding machine or the combing machine is fully placed in a cotton sliver reversing and dynamic storage device with the cross section matched with the outline of the laminated cotton sliver in a circumferential or long circular lamination mode by a coiling component, the longitudinal section of the cotton sliver reversing and dynamic storage device is a U-shaped pipeline, the cotton sliver is dynamically stored in the cotton sliver reversing and dynamic storage device after being reversed by 180 degrees in the U-shaped pipeline, and the head end of the coiled laminated cotton sliver can be led out of the cotton sliver dynamic storage device without interruption. "

One of the matching forms is as follows: the automatic sliver reversing and dynamic storing device comprises a self-rotating coiler (the upper part of the common coiler) and a sliver reversing and dynamic storing device with an oblong cross section and a U-shaped longitudinal cross section, wherein the sliver reversing and dynamic storing device is arranged on a bottom reciprocating motion structure, and the reciprocating motion mechanism enables the sliver reversing and dynamic storing device to be matched with the self-rotating coiler, so that long-round stacked sliver reversing, reversing and dynamic storing are completed. "

In three embodiments described in publication 1609291, "method and apparatus for dynamic storage of tampons," U "shaped tubing is characterized by: the outlet side is higher than the inlet side.

When the fiber strips are stored and turned in this way, a situation different from the original idea occurs. That is: the storage device only reciprocates in the transverse direction (i.e., X direction). This forms the closest point of the fiber ribbon column near the inner and outer walls of the "U" shaped tube, with the center of the fiber ribbon column being relatively empty. When the stacked loops are placed in the fiber strand columns in the "U" shaped tube, a "collapse" occurs due to gravity and pressure when the bottom of the "U" shaped tube is turned over. In addition, friction exists between the bottom of the U-shaped pipeline and the fiber strip, and when the fiber strip column is overturned and pushed to the outlet. A significant amount of pressure needs to be applied at the inlet of the device. Therefore, the fiber strip cannot smoothly finish turning in the U-shaped pipeline.

Disclosure of Invention

The invention provides a J-shaped fiber strip overturning and storing device, which enables raw strips produced by a carding machine to be overturned and stored in proper quantity by the device. The technical scheme is as follows:

the 'J' -shaped fiber strip overturning storage device comprises a coiler, a 'J' -shaped fiber strip overturning storage device, a base and a storage quantity sensor, wherein the coiler is positioned at the inlet side of the 'J' -shaped fiber strip overturning storage device, the 'J' -shaped fiber strip overturning storage device is arranged on the base, and the storage quantity sensor is arranged at the outlet side of the 'J' -shaped fiber strip overturning storage device; the outlet side of the J-shaped fiber strip overturning storage device is lower than the inlet side and is not higher than the arc center line of the J-shaped bottom.

The base is provided with a transverse moving device and a longitudinal moving device, and the base drives the mounting base to move transversely and longitudinally.

The storage quantity sensor comprises an upper storage quantity limit sensor and a lower storage quantity limit sensor, wherein the storage quantity sensor is arranged on the outlet side of the J-shaped fiber strip overturning storage device, and the position of the upper storage quantity limit sensor is higher than that of the lower storage quantity limit sensor.

The moving process is a circulating motion, taking a first layer as an example for encircling three layers of fiber strips, taking a second layer as an example for encircling three layers of fiber strips, taking a third layer as an example for encircling three layers of fiber strips, assuming that a starting point is positioned at the upper right corner, moving leftwards as the positive direction of the X direction and expressed by x+, otherwise, moving rightwards as the reverse direction of the X direction and expressed by X-; the downward movement is the positive direction of the Y direction, denoted by y+, whereas the upward movement is the negative direction of the Y direction, denoted by Y-; the motion trail of one cycle is as follows:

a (x+) -a 1 (x+, y+) -b (x-) -b 1 (x-, y+) -c (x+) -c 1 (x+, y-) -b ((x-) -b 2 (x-, y-)) returning to the starting point, wherein the "J" -shaped storage device moves in the x+ direction when the layer a is looped, and the "J" -shaped fiber strip overturning storage device moves in the y+ direction once when the fiber strip looped by the coiler is almost tangent to the lateral inner wall of one side of the "J" -shaped fiber strip overturning storage device, forming an oblique path a1, the directions of a1 and b2 are the same, and the directions of b1 and c1 are the same.

The fiber strips produced by the carding machine are directly conveyed to a drawing frame for production by the fiber strip conveying device after being turned over and stored by the device. Thereby changing the current situation that the raw sliver can is required to be used as an intermediate storage tool in the production process from the cotton carding process to the drawing process. So that the automatic connection of a plurality of carding machines and a drawing frame and the continuous production are possible.

Drawings

FIG. 1 is a schematic diagram of the working principle of the present invention;

FIG. 2 is a schematic longitudinal cross-sectional view of a "J" shaped fibrid flip storage device;

FIG. 3 is a top view of the ring-down molding;

FIG. 4 is a schematic view of the distribution of longitudinal section fiber sliver layers in a "J" shaped pipe;

FIG. 5 is a schematic illustration of the relationship of cross misalignment between fiber strands;

FIG. 6 is a schematic view of the trajectory of movement relative to the center of rotation of the coiler;

FIG. 7 is a schematic diagram of a motion cycle path sequence;

FIG. 8 is a schematic representation of the distribution of longitudinal section fiber sliver layers in a "U" shaped tube.

1-a coiler;

2- "J" shape fiber strip turns over the storage device;

21-inlet; 22-outlet; 23-bottom arc center line;

3-fiber strand entering the storage device;

31-a sliver layer that can be drawn at the outlet of the storage device;

4-a base;

5-storage amount sensor;

51. 52-storage amount upper limit sensor; 53. 54-storage lower limit sensor.

Detailed Description

In the technical scheme, the method and the device for dynamic storage of cotton sliver are improved, wherein the publication number of the method and the device is 1609291. The improvement points are that: the cross section of the fiber strip overturning and storing device is an oblong pipeline, and the longitudinal section of the fiber strip overturning and storing device is a J-shaped pipeline. The outlet side is positioned lower than the inlet side and not higher than the bottom arc center line. The purpose is that: the pressure applied when the fiber column turns is reduced.

The fiber strip overturning and storing device with the J-shaped longitudinal section not only needs to do transverse (namely, X direction) reciprocating motion, but also needs to do longitudinal (namely, Y direction) reciprocating motion. The purpose of the longitudinal reciprocation is: so that each layer of fiber strips form a crossed dislocation relationship. This cross-misalignment results in a more uniform density of the fiber rod columns. When the stacked loops are placed in the fiber strand column in the "J" shaped duct, the bottom of the "J" shaped duct is inverted. Even if the fiber rod is under the action of gravity and pressure, the fiber rod is supported strongly, and the influence caused by collapse of the fiber rod is reduced.

At least two pairs of sensors are arranged in the device and are used for monitoring the storage quantity of the fiber strips which are turned over. Both pairs of storage volume sensors are mounted near the outlet of the "J" shaped tubular passage.

And controlling the production speed of the carding machine according to the signals output by the two pairs of storage quantity sensors.

As shown in fig. 1, the coiler 1 is rotatably mounted on a fixed frame. The fiber strips output by the carding machine are coiled and put into a J-shaped fiber strip overturning and storing device 2 with an oblong cross section and a J-shaped longitudinal section through a common coiler 1. The "J" shaped fibrids turn over the longitudinal section of the storage device 2 as shown in figure 2. The method is characterized in that: the outlet position is lower than the inlet position and is arranged at a position not higher than the arc center line of the bottom. The J-shaped fiber strip overturning and storing device is arranged on a base 4 which can do transverse (X direction) reciprocating motion and longitudinal (Y direction) reciprocating motion.

The working method is as follows: the coiler 1 makes X-direction movement of the J-shaped fiber strip overturning storage device when placing fiber strip coils into the J-shaped fiber strip overturning storage device 2; when the fiber strips 3 coiled by the coiler 1 are tangent to the transverse inner wall 24 at one side of the J-shaped fiber strip overturning and storing device 2, the J-shaped fiber strip overturning and storing device moves in the Y direction once; thereafter, the "J" -shaped fibrid turning storage device 2 moves in the opposite direction to the just lateral movement; when the fiber strip 3 coiled by the coiler 1 is tangent to the transverse inner wall 24 on the other side of the J-shaped fiber strip overturning storage device 2, the J-shaped fiber strip overturning storage device 2 moves longitudinally again. After such combined movement, the fiber strips 3 enclosed in the J-shaped fiber strip overturning storage device have a cross dislocation relationship between each layer. As shown in fig. 3, the longitudinal width of the inlet of the "J" shaped sliver turning storage device is determined by the winding diameter of the coiler, the sliver width and the number of interlaces.

The sliver 3, when being looped into the "J" shaped sliver turning storage device 2, is turned over while moving to the bottom in the "J" shaped sliver turning storage device 2. Moving again to the vicinity of the outlet of the "J" shaped sliver inverting storage device 2, a sliver layer 31 is formed which can be drawn at the outlet of the storage device, continuously drawn and fed to the drawing frame of the next process.

As shown in fig. 1, the storage amount of the sliver of the "J" shaped sliver turning storage device 2 is monitored by two pairs of

storage amount sensors

51, 52 and 53, 54 installed near the outlet of the "J" shaped sliver turning storage device 2. Wherein: 51. 52 is a fiber storage amount upper limit sensor, and 53, 54 are fiber storage amount lower limit sensors. When the flipped sliver take-off point is completed, between the two pairs of sensors, the carding machine is run at the original speed. When the storage of the sliver in the device reaches the upper limit, the carding machine starts to run at a lower speed. When the storage of the sliver in the device reaches a lower limit, the carding machine starts to run at a higher speed. The drawing point of the fiber strip on the fiber strip storage and turning device depends on a carding machine to automatically adjust the production speed. The lower running speed and the higher running speed of the carding machine are within +/-10 percent. The carding machine makes such a change in speed that, in existing production practice, it has proved that it does not have a significant effect on the quality of the output sliver.

As shown in fig. 4, the provision of the "J" shaped sliver turning storage device of the present application has the following two effects on the reduction of the "collapse".

First, by lowering the sliver extracting point of the storage device, the pressure exerted by the sliver column on the bottom of the "J" shaped sliver flipping storage device is reduced. FIG. 8 is a schematic diagram showing the distribution of fiber strand layers in a U-shaped pipeline. As can be seen from a comparison of fig. 4 with fig. 8. When the J-shaped device is used, the extraction surface of the fiber strip is below the bottom circular arc center line; the fiber strip extraction surface of the U-shaped device is positioned at a place which is higher than the center line of the bottom circular arc. Comparing the sliver extraction faces of the two devices, it can be clearly concluded that: the "U" shaped device is intended to effect the inversion of the sliver and the pressure applied to the sliver column at the inlet is much greater than the "J" shaped device. As the pressure to which the sliver column is subjected at the bottom of the inverted storage device is reduced. The collapse phenomenon of the fiber column is greatly improved. And, the "J" shaped device does not require the fiber rod column to be completely flipped over. As shown in fig. 4, after the fiber layer reaches the lowest point n distance at the bottom of the "J" shaped pipe, the fiber rod layer begins to flip upward. When the sliver layer is turned up to an angle (beta is greater than about 20 deg.), the sliver can be extracted by the sliver conveying device.

The second measure is to increase the "Y" direction movement, which results in the "cross-dislocation relationship between each layer". As shown in fig. 5, after the Y-direction movement device is added in the present application, the density distribution state in the fiber column is changed, and the density difference between the upper and lower edges and the middle is reduced in the overturning process. And, because the fiber strips are staggered from layer to layer. Thus, the fiber strands at the bottom of the "J" shaped conduit are relatively reliably supported from each other. Also taking the example of winding three layers of fiber strips, the cross dislocation relationship is formed. FIG. 6 is a diagram of the motion profile of the "J" shaped storage device described herein with respect to the center of rotation of the coiler. When the first layer (a layer) is put around, the J-shaped storage device moves along the path a in the X direction (the movement direction is assumed to be the positive direction of the X direction and is denoted by x+. When the fiber strips coiled by the coiler are almost tangent to the transverse inner wall 24 on one side of the J-shaped fiber strip overturning storage device, the J-shaped fiber strip overturning storage device moves in the Y direction once (assuming that the movement direction is the positive direction of the Y direction and is denoted by y+); the motion trajectory a1 of this process is a combined motion in the X direction and the Y direction (the motion direction is indicated by x+, y+. The "J" shaped storage device then moves in the X direction along path b (in which case the direction of movement is opposite to path a, indicated by X "). … … the motion cycle path sequence is shown in fig. 7.

Therefore, the fiber strips produced by the carding machine are directly conveyed to a drawing frame for production by the fiber strip conveying device after being turned over and stored by the device. Thereby changing the current situation that the raw sliver can is required to be used as an intermediate storage tool in the production process from the cotton carding process to the drawing process. So that the automatic connection of a plurality of carding machines and a drawing frame and the continuous production are possible.

Claims

1. The utility model provides a "J" shape fibrid upset storage device which characterized in that: the device comprises a coiler, a J-shaped fiber strip overturning and storing device, a base and a storage quantity sensor, wherein the coiler is positioned at the inlet side of the J-shaped fiber strip overturning and storing device, the J-shaped fiber strip overturning and storing device is arranged on the base, and the storage quantity sensor is arranged at the outlet side of the J-shaped fiber strip overturning and storing device; the outlet side of the J-shaped fiber strip overturning storage device is lower than the inlet side and is not higher than the arc center line of the J-shaped bottom.

2. The "J" shaped fiber strip inversion storage device of claim 1 wherein: the base is provided with a transverse moving device and a longitudinal moving device, and the base drives the mounting base to move transversely and longitudinally.

3. The "J" shaped fiber strip inversion storage device of claim 1 wherein: the storage quantity sensor comprises an upper storage quantity limit sensor and a lower storage quantity limit sensor, wherein the storage quantity sensor is arranged on the outlet side of the J-shaped fiber strip overturning storage device, and the position of the upper storage quantity limit sensor is higher than that of the lower storage quantity limit sensor.

4. The "J" shaped fiber strip inversion storage device of claim 2 wherein: the moving process is a cyclic motion, a first layer is a layer, a second layer is a layer b, a third layer is a layer c, a starting point is positioned at the upper right corner, the left motion is a positive direction of an X direction and is represented by x+, otherwise, the right motion is a reverse direction of the X direction and is represented by X-; the downward movement is the positive direction of the Y direction, denoted by y+, whereas the upward movement is the negative direction of the Y direction, denoted by Y-; the motion trail of one cycle is as follows: a (x+) -a 1 (x+, y+) -b (x-) -b 1 (x-, y+) -c (x+) -c 1 (x+, y-) -b (x-) -b 2 (x-, y-); and returning to the starting point, wherein when the layer a is coiled, the J-shaped storage device moves in the x+ direction, and when the fiber strip coiled by the coiler is almost tangent to the transverse inner wall of one side of the J-shaped fiber strip overturning storage device, the J-shaped fiber strip overturning storage device moves in the y+ direction once to form an inclined path a1, the directions of a1 and b2 are the same, and the directions of b1 and c1 are the same.