CN113122975A

CN113122975A - Automatic fiber strand jointing device and method

Info

Publication number: CN113122975A
Application number: CN202010028627.3A
Authority: CN
Inventors: 邱丽遐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2021-07-16

Abstract

The invention provides an automatic jointing device and a jointing method for a fiber strand. It is composed of a beard strip tail clamping component, a beard strip joint component and an electric control unit. The sliver piecing device is located above the horizontal plane of the top end of the sliver can and is applied to drawing frames, sliver-lap combining machines and roving frames. The automatic joint device comprises the following joint method: when the beard strip is broken or the new strip can is replaced, the beard strip tail holding component of the connector device can be used for holding upper and lower beard strip tails, and transferring them into connector component so as to form the connector whose thickness is identical to that of original beard strip on the connector component. The invention realizes the automatic fiber strand splicing device and the method, does not need manual operation, and improves the automation degree, the production efficiency and the yarn quality. For operators, the workload is reduced, the stand amount is increased, and a more comfortable working environment is provided; for the investors of spinning mills, the labor is reduced, the automatic joint of the fiber strands is realized, and the foundation is laid for further realizing unmanned factories.

Description

Automatic fiber strand jointing device and method

Technical Field

The invention relates to the field of textile machinery, in particular to a drawing frame, a sliver lap combination machine and a roving frame, and particularly relates to an automatic sliver jointing device and a jointing method.

Background

The drawing frame draws 4 to 8 beard strips out of the can, under the guide of the guide frame, enters the drafting system for stretching, paralleling, impurity removing and mixing, and then turns into a single beard strip ring to be placed in the can. It is known that when the strand of a strand bobbin of a strand guide is used up or the strand is accidentally broken, in actual production, an operator must manually twist the strand tail at one end of the strand with the strand tail at the other end of the strand, or manually twist the strand tail of the strand that is about to be used up with the strand tail of a new bobbin to form a joint for continuous production.

The roving frame is used for forming coarse slivers suitable for a spinning frame by respectively drafting the slivers of up to 252 sliver cans. It is known that the process of breaking the strand inside the sliver cans or using up the sliver cans and filling the strand joints of the sliver cans with new strand cans is manually completed by an operator: when the head is broken, an operator needs to manually twist the beard strip tail (upper beard strip tail) at one end of the beard strip and the beard strip tail (lower beard strip tail) at the other end of the beard strip together; when the bobbin is replaced, the strand tails of the upper bobbin (the upper strand tails) and the new bobbin (the lower strand tails) are manually twisted together to form a joint.

The lap winder is a process used between the drawing frame and the combing machine. Up to 32 slivers are drawn from the can by the guide frame and drafted to form a sliver lap which can be used by the combing machine. It is known that the accidental breakage of the beard strips in the sliver cans and the connection of the beard strips during the replacement of the sliver cans are manually completed by an operator, and the beard strip tail at one end and the beard strip tail at the other end are twisted together by the operator to form the connection.

The work is very large in workload, an operator needs to inspect the machine in real time, manual beard and strip connectors are used, the quality of the connectors is good or bad according to proficiency and skill of the operator, a uniform connector quality standard is not provided, a new quality problem of the next procedure is caused, and the production efficiency is reduced. With the increasing labor cost of spinning mills, skilled spinning workers are more and more difficult to attract, the intelligent automation becomes the trend of spinning mills, and the joint serving as the fiber strand is still completed by operators, which becomes a bottleneck. Up to now, the respective textile machine manufacturers have focused on yarn splicing and splicing quality, and no automatic splicing method and device for a sliver has been proposed or applied in the actual production of spinning mills. Patent No. ZL03807827.9 describes a method and apparatus for splicing strands, but the purpose of the apparatus is to splice strands when they are broken in the drafting zone of ring spinning. Patent No. CN105648588B refers to a yarn splicing method and apparatus, but the object of the invention is to provide a method and apparatus for splicing broken ends of yarns (not fiber strands) produced by vortex spinning during vortex spinning.

Disclosure of Invention

In order to break through the bottleneck and realize automatic beard strip joint, the invention provides an automatic beard strip joint method and a joint device. The joint device can automatically joint the broken ends of the fiber strands of the same can, or joint the fiber strand tail of the previous can with the fiber strand tail of the new can. Thereby removing artifical beard strip and connecting, promote beard strip and connect the quality, provide a prerequisite for realizing intelligent and automatic spinning mill.

The terms described in the present invention:

the 'fiber strand' is a fiber strand arranged in a can, and is also called as a 'cotton sliver' or a 'sliver' in a factory; the fiber material can be cotton, viscose, chemical fiber, wool or the mixed fiber thereof.

The 'beard strip tail' refers to the tail end of the broken beard strip, and the 'upper beard strip tail' refers to the tail end of the section of the beard strip connected with the guide strip frame or the beard strip tail in the sliver can to be spun; the 'lower strand tail' refers to the tail end of the strand connected with the can, or the tail end of a newly replaced can.

"Joint component" means a functional component having a function of twisting the tails of the upper and lower strands together to form a joint as thick as an original strand. The 'upper beard strip tail clamping component' is a functional component for finding and holding the upper beard strip tail. The 'lower beard strip tail clamping component' is a functional component for finding and holding the lower beard strip tail. Reference is made to the labels in the figures.

The technical scheme adopted by the invention for solving the technical problem is as follows: an automatic beard strip jointing device and a method thereof are provided with a beard strip tail clamping component, a beard strip jointing component and an electric control unit; the automatic jointing method comprises the following steps: when the beard strip is broken, a beard strip tail clamping component of the automatic joint device clamps the tail of the upper beard strip and the tail of the lower beard strip, the upper beard strip and the tail of the lower beard strip are conveyed to a joint component, and the beard strip joint is completed on the joint component to form a joint as thick as the original beard strip; when the beard strip can is replaced, the upper beard strip tail clamping component and the lower beard strip tail clamping component of the joint device respectively find and clamp the upper beard strip tail (the beard strip tail of the beard strip can which is about to be used up) and the lower beard strip tail (the beard strip tail of a new beard strip can), and the upper beard strip tail and the lower beard strip tail are conveyed to the joint component to complete the joint, so that the joint with the thickness as thick as the beard strip is formed.

The automatic beard strip jointing device is designed above the horizontal plane at the top end of the beard strip can, so that the transportation of the can is not hindered, the possibility that the high-speed extracted beard strips touch the jointing device is avoided, and the movement route of the beard strips of the machine is not influenced.

For the drawing frame, all cans can share one joint device, and each can also correspond to one joint device; for the roving frame, the sliver cans preferably share one or more splicing devices; for a combined ribbon and lap machine, the cans preferably share 1 or 2 splice devices.

As a preferred embodiment of the present invention, the automatic beard string splicing device comprises an upper beard string tail holding part, a lower beard string holding part, a splicing part, a pulley part driven by a motor, a beard string sensor and an electric control unit; the automatic piecing device is mounted in the area above the top end of the can and is movable over the can by means of one or more rails. When the beard strip joint is needed, the joint device obtains a command of a machine, the motor drives the joint device to move to the position above the strip cylinder, correct positioning is carried out through the sensor, and the electric control unit commands the upper beard strip tail clamping component to find and clamp the upper beard strip tail, cuts off redundant beard strips, conveys the upper beard strip tail clamping component to the joint component, conveys the lower beard strip tail clamping component to find and clamp the lower beard strip tail, cuts off redundant beard strips and conveys the lower beard strip tail to the joint component. In the joint part, the upper and lower beard strip tails are processed into proper length and fineness, and are twisted to form a beard strip with the original thickness. After the splicing is completed, the engaged upper and lower slivers are released by the splicing device, and the automatic sliver splicing device moves to the next can or is in a standby state.

In a preferred embodiment of the invention, the automatic fiber strand splicing device comprises a fiber strand tail clamping part, a splicing part, a fiber strand sensor and an electric control unit. The automatic piecing device is fixedly mounted in the area above the top end of the can. Corresponding automatic joint devices are respectively arranged corresponding to each can of the guide strip frame. Before splicing, the strand tail of a newly full strand bobbin is placed in the splice part in advance, waiting for splicing. When the beard strip sensor detects that the beard strip in the beard strip cylinder is about to run out, the electric control unit sends an instruction to control the upper beard strip clamping component to find and clamp the tail of the upper beard strip and convey the tail of the upper beard strip into the joint component, wherein the tail of the upper beard strip and the tail of the lower beard strip which is placed before complete joint to form a joint with the thickness as the original beard strip.

As a preferred embodiment of the present invention: the beard strip connector device is arranged in the upper area of the horizontal plane of the top end of the sliver can.

In a preferred embodiment of the present invention, the fiber strand sensor of the fiber strand connector device may be a grating sensor or an image recognition sensor. It detects the imminent exhaustion of the strand in the can, and issues a command to inform the splicing device to prepare for the splicing process.

The invention has the beneficial effects that: the invention realizes the automatic joint of the fiber strand without manual operation, and improves the automation degree, the production efficiency and the yarn quality. For operators, the workload is reduced, the stand amount is increased, and a more comfortable working environment is provided; for the investors of spinning mills, the labor is reduced, the automatic joint of the fiber strands is realized, and the foundation is laid for further realizing unmanned factories. The invention can be used for the strand connector of the guide frame part of the drawing frame; the yarn splicing device can also be used for the yarn splicing joint of the yarn guide frame part of a combing process; the yarn guide frame can also be used for the yarn guide frame part of the roving frame. The invention can realize an unmanned spinning factory in a real sense by combining the automatic transport of the sliver can by the AGV trolley.

Drawings

The invention is further illustrated with reference to the following figures and examples. The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate patent, and not limit the patent.

FIG. 1 is a schematic view of the feeding of the fiber strands and the sliver cans of the current drawing frame

FIG. 2 is a schematic view of feeding a strand and a bobbin of a spindle of a roving frame

FIG. 3 is a schematic view of the feeding of the fiber strand and the can of the present ribbon lap combining machine

FIG. 4 is a schematic view of a preferred embodiment of the present invention

FIG. 5 is a schematic view of another preferred embodiment of the present invention

FIG. 6 is a flow chart of a splice of a preferred embodiment of the present invention

FIG. 7 is a flow chart of a splice according to another preferred embodiment of the present invention

In the drawing, 1, a can, 2, a feed roller, 3, a sliver, 4, a roving sliver, 5, sliver lap, 6, a can to be spun, 7, a lower sliver tail, 8, an upper sliver tail, 9, a lower sliver tail clamping part, 10, an upper sliver tail clamping part, 11, a joint part, 12, an electric control unit, 13, a sliver sensor, 14, a pulley, 15, a motor, a drawing frame drafting part, b, a roving frame drafting part, c, a sliver lap combination drafting part, D, a splicing device according to an embodiment of the present invention, D', a splicing device according to another embodiment of the present invention, l, a can top end level.

Detailed Description

In fig. 1, a schematic drawing of the strand feeding and drawing of a typical drawing frame is shown. The sliver 3, which is usually contained in 4 to 8 cans 1, is fed to the drafting section a via the feed rollers 2, and the drafted and mixed sliver 3 is fed to the cans 1 of the sliver discharging section.

In fig. 2, a schematic diagram of a single spindle of a typical roving frame is shown. A sliver 3 in a sliver can 1 is fed to a drafting section B through a feed roller 2, and the drafted sliver 3 is wound on a roving bobbin to form a roving sliver 4. For the next spinning frame.

In fig. 3, there is shown a schematic view of a typical ribbon lap machine. The sliver 3, which is usually contained in 16 to 32 cans 1, is fed through the feed roller 2 into the drafting section C and then wound into a sliver and packaged 5 for the next process for use in the combing machine.

In fig. 4, a preferred embodiment of the present invention is shown. The joint device D' is arranged above the horizontal plane L of the top end of the can. When the spinning of the strands in the can 6 is about to be completed, the strand sensor 13 detects that the strand of the can 6 is about to be completed, and then the strand sensor 13 sends a signal to be transmitted to the electronic control unit 12. The electronic control unit 12 commands the motor 15 to start driving the pulley 14, moving the joint device D and positioning it above the cans 1 and 6, i.e. above the can top level L. The upper beard strip tail clamping part 10 starts to clamp the upper beard strip tail 8, cuts off redundant beard strips and conveys the beard strips to the joint part 11; the lower beard strip tail clamping part 9 clamps the lower beard strip tail 7, cuts off redundant beard strips and conveys the cut redundant beard strips to the joint part 11; under the control of the electric control unit 12, the joining unit 11 completes the joining of the upper and lower beard tails 8, 7. After the jointing is finished, the jointing device D moves to the next working position or is in a standby state under the driving of the motor 15 and the pulley 14.

In fig. 5, another preferred embodiment of the present invention is shown. The joint device D' is arranged above the horizontal plane L of the top end of the can. In actual production, before the splicing, the operator places a full sliver can 1 near the sliver can 6 on the sliver guide and places the tail of the sliver can 1 in the splice part 11 as a splice preparation. When the strand in the can 6 is about to be used up, the strand sensor 13 is activated, and the signal of the strand sensor 13 is transmitted to the electronic control unit 12; the electric control unit 12 drives the upper strand tail holding part 10 to find and hold the upper strand tail 8, cut off the excess strand and then feed it into the joint part 11. The operation of the joining of the upper strand tail 8 and the lower strand tail 7, which has been placed beforehand, is carried out at the joining part 11, and the required joining quality is ensured. After the end of the splice, the operator removes the empty can 6 and the full can 1 is moved to the original position of the can 6.

In fig. 6 is a flow chart of a joint according to a preferred embodiment of the present invention (shown in fig. 4). It describes the whole joint procedure: when the connector starts, the beard strip sensor 13 detects that the upper beard strip 8 is about to be spun, the connector device D is positioned above the sliver can 6, the upper beard strip clamping part 10 finds the upper beard strip tail, the lower beard strip tail clamping part 9 finds the lower beard strip tail 7, the upper beard strip tail and the lower beard strip tail (7 and 8) finish the connector in the connector part 11, the connector device D stands by or moves to the next working position, and the connector is finished.

In fig. 7 is a flow chart of a joint according to another preferred embodiment of the present invention (shown in fig. 5). It describes the whole joint procedure: when the splicing is started, the upper beard strip sensor 13 detects that the upper beard strip 8 is about to be spun, the upper beard strip tail clamping part 10 finds the upper beard strip tail 8, and then the upper beard strip tail 8 is conveyed into the splicing part 11, wherein the splicing is completed together with the lower beard strip tail 7 which is placed in advance; and (5) finishing the joint.

The preferred embodiment (fig. 4) of the invention is a full-automatic beard sliver jointing device and jointing method, which are matched with an AGV trolley and can realize full-automatic unmanned sliver can transportation and jointing process; another preferred embodiment (fig. 5) of the present invention is a semi-automatic sliver piecing apparatus and piecing method that allows for an economical and simple piecing procedure by an operator transporting a sliver can and pre-positioning the tail of the sliver.

Various modifications or additions may be made or equivalents may be substituted for those skilled in the art without departing from the spirit and scope of the invention as defined in the claims.

Claims

1. An automatic sliver piecing device and method, having a sliver tail holding part (9, 10), a sliver piecing part (11) and an electric control unit (12), for the sliver piecing of a drawing frame, sliver lap combining machine or roving frame, characterized in that: the automatic sliver piecing device (D, D') is located above the top horizontal plane L of the sliver can and has at least one piecing part (11).

2. The automatic joining device and method of a bundle of fibers according to claim 1, wherein: the automatic beard string splicing device (D, D') has an upper beard string tail holding member (10) and a lower beard string tail holding member (9).

3. The device and method for automatically splicing a bundle of fibers according to claims 1 and 2, wherein: when the beard strip (8) is broken or the beard strip of the strip barrel (6) is replaced, an automatic joint device (D, D') is positioned above the strip barrel, an upper beard strip tail clamping component (10) searches and clamps an upper beard strip tail (8), a lower beard strip tail clamping component (9) searches and clamps a lower beard strip tail (7), and the lower beard strip tail is conveyed to a joint component (11) to complete the joint.

4. The automatic joining device and method of a bundle of fibers according to claim 1, wherein: the automatic whisker band splicing device (D, D') has an upper whisker band tail holding member (10).

5. The device and method for automatically splicing a bundle of fibers according to claims 1 and 4, wherein: when the fiber strand of the strand tube (6) is replaced, the upper fiber strand tail clamping part (10) searches for and clamps the upper fiber strand tail (8), the upper fiber strand tail is conveyed to the joint part (11), and the upper fiber strand tail and the lower fiber strand tail (7) which is placed on the joint part (11) in advance are twisted to form the joint.

6. The device and method for automatically splicing a bundle of fibers according to claims 1 to 5, wherein: the automatic sliver piecing device (D, D ') is used for a drawing frame, a sliver lap combination machine and a roving frame, the slivers (6) fed with slivers can share one or more piecing devices (D, D '), and each sliver can (6) can correspond to one piecing device (D, D ').