CN113896053B - Multiple looping device - Google Patents

Abstract

The invention discloses a multi-time loop forming device, which is a knotting machine for knotting silk thread. The multiple loop forming device includes: a frame; a wire feeding mechanism for stabilizing the silk thread at a predetermined position; a transmission mechanism, It is used to transmit the force in the loop forming device for multiple times; the loop forming mechanism is set on the transmission mechanism and is used to hook the silk thread for multiple times to form loops; the driving mechanism is set on the frame and controls the wire feeding mechanism and the forming mechanism. The ring mechanism is driven. According to the multi-time loop forming device provided by the invention, the problems of low manual knotting efficiency and many uncontrollable factors are solved, and the production efficiency of the factory is improved.

Description

Multiple loop forming device

technical field

The invention relates to the field of silk cake processing, in particular to a multi-time loop forming device.

Background technique

In the field of textiles, processes such as head finding, stripping and knotting of silk cakes are usually performed manually at present. However, there are many inconveniences. For example, some silk cars only have a head beam as high as 1.7 meters, and it is very difficult for operators who are slightly shorter to perform work such as stripping, knotting and inspecting wool on the uppermost floor. inconvenient. The accuracy of the manual operation of the operator varies from person to person, and very high accuracy cannot be guaranteed. Especially when older operators are physically exhausted, the accuracy is further reduced.

After the coiled wire is stripped, it needs to be sent to the warehouse for storage, so as to be packaged or sent to the next process for further processing. If the silk ends of the packaged silk cake are not fixed, the silk ends will be scattered during transportation. Scattered silk ends are easy to be entangled on other objects, and the entangled silk ends are messy, which will cause inconvenience to the next process, so knotting is an indispensable part of the spinning process.

At present, in the textile industry, knotless air splicers are mainly used for knotting silk threads, and there is also a self-tightening knotter. The knots of silk threads are composed of two incomplete knots. However, the factory currently still relies on manual knotting for single silk threads, and there is no automatic knotting equipment for single silk threads. The steps for manual knotting are as follows:

1. Pick up one end of the silk thread with your left hand, and hold the position 20-30mm away from the end of the thread, while the height is flush with the knotted end.

2. Turn your right hand along the picked-up coil for a circle and pick it up once. The picked-up coil is in an inverted V shape, 10-15mm away from the knotted end face, and the opening direction of the picked-up coil is parallel to the knotted end face.

3. Rotate the right hand 270° to form a circle, and the coil opening direction is perpendicular to the knotted end.

4. Pass the pinched silk thread with the left hand through the coil formed by the rotation, pull out the coil formed by the rotation with the right hand, then hook the silk thread sent in by the left hand, and at the same time pull the thread along the direction of the thread fed by the left hand to form a + coil 1.

5. The right hand hooks the silk thread held by the left hand again, and passes through coil 1 to form coil 2. At this time, coils 1 and 2 are in a cross shape.

6. Tighten the left hand, hook the coil 2 with the index finger of the right hand, and pull the coil 2 continuously with the middle finger and ring finger of the right hand, so that the silk thread is tightened toward the silk head.

7. Until knots are formed on the end face of the knot, the knot is completed.

It can be seen that the steps of manual knotting are complicated, labor-intensive, low-efficiency, and the quality is difficult to guarantee, and the knots are uncertain. In the subsequent weighing and appearance inspection, it is easy to cause loose knots. Opening not only has a certain impact on appearance inspection.

It can be seen that the transformation of single silk thread knotting from manual to automatic is urgently needed. While the automatic knotting machine realizes automatic knotting of silk thread, it can simulate the manual loop forming process for many times. Can it be based on the existing technology? Insufficient, providing an improved multiple loop forming device, which can replace manual multiple loop forming, and at the same time ensure that the loop forming process has high stability, and ensure the smooth completion of knotting, has become an urgent problem to be solved by those skilled in the art. technical challenge.

Contents of the invention

In order to solve the deficiencies of the prior art, the main purpose of the present invention is to provide a multiple loop forming device to overcome the problems of uneven quality of manual knotting, unstable coil size affecting the subsequent appearance inspection process, and low production efficiency. The knotting requirements of the specification yarn can be adjusted according to the difference in the number of loops, increasing or decreasing the number of loops, so as to adapt to the knotting of yarns of different specifications.

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

A multi-time loop forming device, a knotting machine for knotting silk threads, the feature of the automatic locking knotting is that it includes:

frame;

A wire feeding mechanism for stabilizing the wire at a predetermined position;

The transmission mechanism is used to transmit the force in the multiple loop forming device;

The loop forming mechanism is set on the transmission mechanism and is used to hook the silk thread multiple times to form loops;

The driving mechanism is arranged on the frame and drives the wire feeding mechanism and the loop forming mechanism.

According to the multi-time loop forming device provided by the present invention, labor costs are reduced, production efficiency is improved and automatic production is achieved, and considerable economic benefits are obtained.

Description of drawings

Fig. 1 is a schematic diagram of a multi-time knitting device of the present invention.

FIG. 2 is an enlarged view of A in FIG. 1 .

Fig. 3 is a schematic diagram of the wire feeding mechanism in Fig. 1 .

Fig. 4 is a schematic diagram of completion of loop formation.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Some, but not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figure 1, the multiple loop forming device of the first embodiment is used in a knotting machine, and the knotting machine knots the silk thread on the silk cake. The multiple loop forming device includes: a frame 1, a wire feeding mechanism 2 , a transmission mechanism (not shown), a knitting mechanism, and a driving mechanism (not shown). In addition, in this embodiment, the case of secondary knitting is shown, but the present invention is not limited thereto, and the knitting method of the multi-time knitting device of this embodiment may not be secondary knitting but tertiary knitting. circles, quadruple circles, etc. The wire feeding mechanism 2 stabilizes the wire at a predetermined position. As shown in Figure 3, the first wire feeding rod 21 and the second wire feeding rod 22 are provided on the wire feeding mechanism 2 (if the number of loops is more, more wire feeding rods will be set), the first wire feeding rod 21 and the second wire feeding rod 22 are used to find the wire thread. Since the wire thread needs to slide back and forth between multiple mechanisms, in order to prevent the wire thread from slipping from the mechanism and causing knotting failure, a wire fixing mechanism 2 is also provided on the wire feeding mechanism 2. Rod 23 to prevent the thread from slipping off. The transmission mechanism transmits the force in the loop forming device multiple times to realize the force transmission between the driving source and the actuator. The loop forming mechanism is arranged on the transmission mechanism and hooks the silk thread several times to form loops. The first fork bar 3 and the second fork bar 4 are provided on the knitting mechanism (if the number of times of knitting is more, more fork bars will be set), and the first fork bar 3 performs the first knitting to form the first fork bar. For the coil, the second fork bar 4 is looped for the second time to form a second coil, and the first coil intersects with the second coil. As shown in Figure 2, a groove is provided on the second fork bar 4 (the first fork bar 3 is also the same), thereby clamping the silk thread, while controlling the size of the knitting mechanism, reducing the number of wires in the knitting process. The effective working stroke further reduces the possibility of wire slipping. The driving mechanism is on the frame and drives the wire feeding mechanism 2 and the loop forming mechanism, that is, drives the lower components to complete the wire feeding and loop forming.

The specific loop forming process is that the first fork bar 3 hooks the wire and advances to form the first coil, that is, the coil 1, and then the second fork bar 4 pushes the wire in an oblique direction (for example, about 30°) from the right side of the first fork bar 3 Coil 1 forms the second coil, that is, coil 2. At this time, the coils 1 and 2 are in a cross shape, so as to facilitate subsequent tensioning and knotting. FIG. 4 is a schematic diagram of the completion of coiling.

Because the mechanism will produce a certain movement accuracy error during the working process, it is difficult for the wire feeding mechanism 2 to send the wire to the theoretical position. There is a certain deviation between the actual position of the silk thread and the theoretical position, which may cause the first fork lever 3 and the second fork lever 4 to fail to hook the silk thread. In order to avoid this problem, enough space is reserved at the front openings of the first fork 3 and the second fork 4. If the wire is higher or lower than the theoretical position, the first fork 3 and the second fork 4 can still be hooked. Hold the thread. At the same time, the opening is a slope with a certain taper, which is also to avoid deviation from the theoretical position, so that the silk thread can slide into the groove smoothly, reduce the friction with the surface of the first fork bar 3 and the second fork bar 4, and reduce the possibility of the thread being broken. sex.

As shown in Figure 3, it is a schematic diagram of the wire feeding position. The wire feeding rod 1 has upper and lower end faces. After the wire is stuck on the upper and lower end faces, it is sent to the front of the fork rod 1. The center of the wire coincides with the center of the opening of the fork rod 1 to reduce hooking. position error; the wire fixing rod 3 is against the silk thread on the wire feeding rod 1 to prevent the wire feeding rod 2 from biasing the silk thread on the wire feeding rod 1; The silk thread is delivered to the front of the fork bar 2, and the center of the same silk thread coincides with the center of the fork bar 2. During the wire feeding process, the frictional force of the wire on the wire feeding mechanism 2 may cause the wire to break, so the wire feeding mechanism 2 is set as a guide wheel with a smooth surface.

As mentioned above, according to the multi-time knitting device of the first embodiment, compared with the prior art, the multi-time knitting device can replace manual knotting, improve the feasibility of knotting, and solve the problem of low efficiency and impossibility of manual knotting. A problem with many controlling factors. In the process of manual knotting, from the perspective of the entire movement, the movements required by the human hand include lifting, lowering, stretching, and rotation. Referring to the movement of the human hand, a multi-degree-of-freedom split opening tensioning mechanism is adopted, which can also realize the human hand. Complicated movements, and are superior to human hands in terms of quality, speed, and stability. Based on the needs of wire looping, the wire feeding mechanism is used to send the wire to the designated position. At the same time, the wire fixing rod ensures the stability of the wire on the wire feeding mechanism, ensuring that the subsequent fork levers can hook the wire, thus completing into circles. When the silk thread slides in the thread feeding mechanism and the loop forming mechanism, it is easy to cause the thread to slip or break due to the smooth surface of the thread itself and the error of the movement accuracy of the mechanism. This device adds auxiliary design to the thread feeding mechanism and the loop forming mechanism to ensure the tension of the thread And the friction force is within a reasonable range. This device is improved on the basis of the problems existing in manual loop formation many times. The knotting quality is neat, the coil size is stable, the knotting efficiency is improved, the automatic processing of the silk cake is realized, the labor cost is reduced, and the production efficiency is improved. And automatic production, realize the intelligent processing of silk cake.

It should be noted that each unit mentioned in each device embodiment of the present invention is a logical unit. Physically, a logical unit may be a physical unit, or a part of a physical unit, or may be a plurality of physical units. The combination of units, the physical implementation of these logic units is not the most important, the combination of functions realized by these logic units is the key to solve the technical problems raised by the present invention. In addition, in order to highlight the innovative part of the present invention, the above-mentioned equipment implementations of the present invention do not introduce units that are not closely related to solving the technical problems proposed by the present invention. unit.

It should be noted that in the claims and description of this patent, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or Any such actual relationship or order between such entities or operations is implied. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Although the present invention has been illustrated 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 present invention. The spirit and scope of the invention.

Claims (3)

1. A multiple loop forming device, a knotting machine for knotting a single silk thread, the multiple loop forming device is characterized in that it includes: frame; A wire feeding mechanism for stabilizing the wire at a predetermined position; The transmission mechanism is used to transmit the force in the multiple loop forming device; The loop forming mechanism is set on the transmission mechanism and is used to hook the silk thread multiple times to form loops; The driving mechanism is arranged on the frame and drives the wire feeding mechanism and the loop forming mechanism; The wire feeding mechanism is provided with a first wire feeding rod and a second wire feeding rod, The first wire feeding rod and the second wire feeding rod are used for head finding of the wire; There is also a wire fixing rod on the wire feeding mechanism to prevent the wire from slipping; A first fork and a second fork are provided on the knitting mechanism, The first fork bar is used to form the first coiling of the first coil, The second fork bar is used to form the second coiling of the second coil, The way of forming the second loop is as follows: the first fork lever hooks the wire and advances to form the first coil, and then the second fork lever pushes the silk thread into the first coil from the oblique direction on the right side of the first fork lever to form the second coil, and the first coil crossed with the second coil; If the number of loops is more, more fork rods and wire feeding rods will be provided. 2. The multi-time knitting device according to claim 1, characterized in that, Grooves are provided on the first fork bar and the second fork bar. 3. The multi-time knitting device according to claim 1, characterized in that, The front end of the wire feeding mechanism is a guide wheel.

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