CN113896053B

CN113896053B - Multiple looping device

Info

Publication number: CN113896053B
Application number: CN202010573314.6A
Authority: CN
Inventors: 冯培; 刘大双; 蓝嘉豪; 张俊平; 杨崇倡
Original assignee: Donghua University
Current assignee: Donghua University
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2023-04-18
Anticipated expiration: 2040-06-22
Also published as: CN113896053A

Abstract

The invention discloses a multiple looping device, which is a knotter for knotting silk threads, and comprises: a frame; the thread feeding mechanism is used for stabilizing the silk thread at a preset position; a transmission mechanism for performing transmission of force in the multiple looping device; the looping mechanism is arranged on the transmission mechanism and is used for hooking the silk thread for multiple times to loop; and the driving mechanism is arranged on the rack and drives the wire feeding mechanism and the looping mechanism. According to the multiple looping device provided by the invention, the problems of low manual knotting efficiency and multiple uncontrollable factors are solved, and the production efficiency of a factory is improved.

Description

Multiple looping device

Technical Field

The invention relates to the field of spinning cake processing, in particular to a multiple-looping device.

Background

In the textile field, the processes of heading, stripping, knotting and the like of spinning cakes are generally performed manually at present. However, there are many inconveniences, for example, some thread turning carts are as high as one meter and seven, and a shorter operator is very inconvenient to perform the operations of thread cake stripping, knotting, broken thread inspection and the like at the uppermost layer. The precision of manual operation by an operator varies from person to person, and very high precision cannot be guaranteed. In particular, when an elderly operator is not sufficient in physical strength, the accuracy further decreases.

After the package silk is stripped, the package silk needs to be sent to a warehouse for storage so as to be packaged or sent to the next procedure for continuous processing. If the yarn ends of the rolled spinning cakes are not fixed, the yarn ends can be scattered in the transportation process. The scattered yarn ends are easy to wind on other objects, and the wound yarn ends are messy, so that the influence of inconvenient operation on the next procedure is caused, and knotting is an essential part in the spinning process.

In the textile industry, currently, a knotless air twister is mainly used for silk thread knotting, and a self-tightening knotter is also used for silk thread knotting. However, the knotting of single silk threads in factories is still manually completed at present, and no equipment for automatically knotting the single silk threads exists. The steps of artificial knotting are as follows:

1. one end of the silk thread is lifted by the left hand, the distance between the held position and the thread end is 20-30mm, and the height is flush with the knotted end face.

2. And the right hand rotates for a circle along the lifted coil to lift the coil for a circle, the lifted coil is in an inverted V shape, the distance between the lifted coil and the knotted end face is 10-15mm, and the opening direction of the lifted coil is parallel to the knotted end face.

3. The right hand rotates 270 degrees to form a loop, and the opening direction of the loop is vertical to the knotting end.

4. The left hand penetrates the pinched silk thread through the rotary formed coil, the right hand is drawn out of the rotary formed coil, then the silk thread fed in by the left hand is hooked, and meanwhile, the silk thread is drawn in the direction of the left hand feeding to form a plus formed coil 1.

5. And the right hand hooks the silk thread pulled by the left hand again, and the silk thread passes through the coil 1 to form a coil 2, wherein the coils 1 and 2 are crossed.

6. And (4) tightening by the left hand, hooking the coil 2 by the index finger of the right hand, and continuously pulling the coil 2 by the middle finger and the ring finger of the right hand so as to tighten the silk thread towards the direction of the silk head.

7. And finishing knotting until the knotted end face is formed with knots.

The method has the advantages that the manual knotting step is complex, the labor intensity is high, the labor efficiency is low, the quality is difficult to guarantee, the knotted knots are uncertain, and in the subsequent weighing and appearance detection links, loose knots are easy to scatter, so that certain influence is caused on appearance detection.

Therefore, the single silk thread knotting is urgently needed from manual to automatic conversion, the automatic knotting machine simulates manual multiple-looping process when realizing automatic knotting of the silk thread, whether the process is based on the defects in the prior art or not is provided with the improved multiple-looping device, manual multiple-looping can be replaced, high stability is guaranteed in the looping process, smooth knotting is guaranteed, and the technical problem to be solved urgently by technical staff in the field is solved.

Disclosure of Invention

In order to solve the defects of the prior art, the invention mainly aims to provide a multiple looping device, which solves the problems that the subsequent appearance detection process is influenced, the production efficiency is low and the like due to uneven manual knotting quality and unstable loop size.

In order to achieve the above object, a first embodiment of the present invention is as follows:

looping device many times for carry out the knotter of knoing to the silk thread, this automatic characteristic of locking knot includes:

a frame;

the wire feeding mechanism is used for stabilizing the silk thread at a preset position;

a transmission mechanism for transmitting force in the multiple looping device;

the looping mechanism is arranged on the transmission mechanism and is used for hooking the silk thread for multiple times to loop;

and the driving mechanism is arranged on the rack and drives the wire feeding mechanism and the looping mechanism.

According to the multiple-looping device provided by the invention, the labor cost is reduced, the production efficiency and the automatic production are improved, and the economic benefit is quite large.

Drawings

FIG. 1 is a schematic view of a multiple looping apparatus of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic view at the wire feeding mechanism in fig. 1.

Fig. 4 is a schematic view of the completion of looping.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the multiple looping device of the first embodiment is used for a knotter that knots a thread on a cake, and includes: a frame 1, a wire feeding mechanism 2, a transmission mechanism (not shown), a looping mechanism, and a driving mechanism (not shown). In addition, in the present embodiment, the case of secondary knitting is shown, but the present invention is not limited to this, and the knitting method of the multi-stitch forming device of the present embodiment may be not secondary knitting but tertiary knitting, quaternary knitting, or the like. The thread feeding mechanism 2 stabilizes the thread at a predetermined position. As shown in fig. 3, the thread feeding mechanism 2 is provided with a first thread feeding rod 21 and a second thread feeding rod 22 (if the number of looping times is more, more thread feeding rods are provided), the first thread feeding rod 21 and the second thread feeding rod 22 are used for finding ends of the threads, and the threads need to slide back and forth among a plurality of mechanisms, so that knotting failure caused by the fact that the threads slide off from the mechanisms is avoided, and the thread feeding mechanism 2 is further provided with a thread fixing rod 23 for preventing the threads from sliding off. The transmission mechanism performs force transmission in the multiple looping device, and realizes the force transmission between the driving source and the execution element. The looping mechanism is arranged on the transmission mechanism and hooks the silk thread for looping for many times. A first fork rod 3 and a second fork rod 4 (more fork rods are arranged if the number of times of loop formation is more) are arranged on the loop forming mechanism, the first fork rod 3 performs the first loop formation to form a first coil, the second fork rod 4 performs the second loop formation to form a second coil, and the first coil and the second coil are crossed. As shown in fig. 2, the second fork 4 is provided with a groove (and the same applies to the first fork 3) to catch the thread and control the size of the looping mechanism, thus reducing the effective working stroke of the thread during looping and further reducing the possibility of the thread slipping. And the driving mechanism is arranged on the rack and drives the wire feeding mechanism 2 and the looping mechanism, namely, the lower component is driven to complete wire feeding and looping.

The specific looping process is that the first fork rod 3 hooks the yarn to advance to form a first coil, namely the coil 1, and then the second fork rod 4 pushes the yarn into the coil 1 from the right side of the first fork rod 3 in an inclined direction (for example, inclined by about 30 degrees) to form a second coil, namely the coil 2, wherein the coils 1 and 2 are in a cross shape, so that the subsequent tensioning and knot formation are convenient, and fig. 4 is a schematic diagram of the completion of looping.

As the mechanism can generate certain motion precision errors in the working process, the thread feeding mechanism 2 is difficult to feed the thread to a theoretical position. The actual position of the thread deviates from the theoretical position, which may result in that the first fork lever 3 and the second fork lever 4 cannot catch the thread. To avoid this problem, the front openings of the first fork rod 3 and the second fork rod 4 are reserved with enough space, and if the silk thread is higher or lower than the theoretical position, the first fork rod 3 and the second fork rod 4 can still hook the silk thread. Meanwhile, the opening is an inclined plane with a certain taper, so that the silk thread can smoothly slide into the groove in order to avoid deviating from the theoretical position, the friction between the silk thread and the surfaces of the first fork rod 3 and the second fork rod 4 is reduced, and the possibility that the silk thread is broken by pulling is reduced.

As shown in fig. 3, which is a schematic view of a thread feeding position, the thread feeding rod 1 has upper and lower end surfaces, the silk thread is clamped on the upper and lower end surfaces and then is fed to the front of the fork rod 1, and the center of the silk thread is overlapped with the center of the opening of the fork rod 1, so that the error of a thread hooking position is reduced; the thread fixing rod 3 props against the thread on the thread feeding rod 1 to prevent the thread feeding rod 2 from deviating the thread belt on the thread feeding rod 1; then the thread feeding rod 2 hooks the thread at the upper end of the thread feeding rod 1 and feeds the thread to the position right in front of the fork rod 2, and the center of the thread is coincided with the center of the fork rod 2. Since the friction of the yarn on the yarn feeding mechanism 2 may cause the yarn to break during the yarn feeding process, the yarn feeding mechanism 2 is provided with a guide roller having a smooth surface.

As described above, according to the multiple looping device of the first embodiment, compared with the prior art, the multiple looping device can replace manual knotting, so that the feasibility of knotting is improved, and the problems of low efficiency and many uncontrollable factors of manual knotting are solved. In the process of artificial knotting, the actions required by the human hand include lifting, lowering, stretching, rotating and the like, and the action of the human hand is referred to, a multi-degree-of-freedom split opening tensioning mechanism is adopted, so that the complex action of the human hand can be realized, and the artificial knotting machine is more excellent than the human hand in the aspects of quality, speed, stability and the like. Based on the requirement of silk thread looping, the silk thread is sent to a designated position by adopting the thread feeding mechanism, and meanwhile, the stability of the silk thread on the thread feeding mechanism is ensured by the thread fixing rod, so that the silk thread can be hooked by a plurality of subsequent fork rod fork rods, and the looping is finished. The silk thread slides when sending line mechanism, looping mechanism, easily because silk thread surface is smooth and mechanism motion accuracy's error, causes the silk thread landing or splits, and this device all adds auxiliary design at sending line mechanism, looping mechanism, guarantees that the tension and the frictional force that the silk thread receives are in reasonable range. This device improves on this basis according to the artifical problem that many times looping exists, and the quality of knoing is neat, the coil size is stable, improved the efficiency of knoing, realizes the automated processing to the spinning cake, reduces the human cost, improves production efficiency and automated production, realizes the intelligent processing to the spinning cake.

It should be noted that, each unit mentioned in each device embodiment of the present invention is a logical unit, and physically, one logical unit may be one physical unit, or may be a part of one physical unit, or may be implemented by a combination of multiple physical units, and the physical implementation manner of these logical units itself is not the most important, and the combination of the functions implemented by these logical units is the key to solve the technical problem provided by the present invention. In addition, in order to highlight the innovative part of the present invention, the above-mentioned embodiments of the apparatus of the present invention do not introduce elements that are not so closely related to solve the technical problems proposed by the present invention, which does not indicate that there are no other elements in the above-mentioned embodiments of the apparatus.

It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A multiple looping device for a knotter which knots a single thread, characterized in that it comprises:

a frame;

a transmission mechanism for performing transmission of force in the multiple looping device;

the driving mechanism is arranged on the rack and drives the wire feeding mechanism and the looping mechanism;

a first wire feeding rod and a second wire feeding rod are arranged on the wire feeding mechanism,

the first thread feeding rod and the second thread feeding rod are used for finding the ends of the silk threads;

the thread feeding mechanism is also provided with a thread fixing rod for preventing the silk thread from sliding off;

a first fork arm and a second fork arm are arranged on the looping mechanism,

the first yoke is used to form a first looping of the first loop,

the second crossbar is used to form a second loop of the second coil,

the secondary looping mode is as follows: the first fork rod hooks the silk thread to advance to form a first coil, then the second fork rod pushes the silk thread into the first coil from the right side of the first fork rod in the inclined direction to form a second coil, and the first coil and the second coil are crossed;

more fork rods and wire feeding rods are needed when the number of times of loop formation is more.

2. Multiple looping device according to claim 1,

grooves are arranged on the first fork rod and the second fork rod.

3. Multiple looping device according to claim 1,

the front end of the wire feeding mechanism is a guide wheel.