Twisting process and twisting device using twisting process

Abstract

A twisting process and a twisting device using the twisting process. In the twisting process, a raw yarn is enabled to first pass through one twisting stopping part and then sequentially pass through a first twisting part and a second twisting part to undergo two stages of twisting. The twisting device is provided with the twisting stopping part and the subsequent two twisting parts; the two twisting parts can be configured to perform two false-twisting operations in a same direction on the raw yarn and the second twisting part performs the false-twisting operation at a higher rotational speed than the first twisting part, so that false-twists of a feeding end and a discharging end of the first twisting part will be neutralized to zero and false-twists of a feeding end of the second twisting part are only partially neutralized, and thus a finished yarn at a discharging end of the second twisting part has partially effective twists. The twisting device using the twisting process can implement one-stop production from a raw yarn bobbin supplying the raw yarn to a finished yarn bobbin wound with the finished yarn having effective twists.

Description

A twisting process and a twisting device using the same TECHNICAL FIELD

[0001] The present application belongs to the field of textile processing, and particularly relates to a twisting process of raw yarn and a twisting device manufactured using the same. BACKGROUND

[0002] The textile industry usually needs to twist raw yarn before weaving using raw yarn including chemical fiber or natural fiber. Twisting refers to twisting or winding fibers such as slivers, yarns, threads, and filaments around their axes to obtain twist or wrapping. Twisting can make fibers and filaments not to be loose or slip and have certain physical and mechanical properties (such as strength, elongation, elasticity, etc.) and appearance characteristics (such as luster, hairiness, and hand feeling, etc.). The main twisting devices currently mainly include a doubling twisting machine and a ring spinning machine. A common defect of the two traditional twisting devices is that both need two separate processes, that is, the raw yarn from the raw yarn drum needs to be first processed into a parallel yarn raw yarn drum for the next twisting process, and then the parallel yarn raw yarn drum is transported to the twisting process for twisting operation and winding into a finished yarn drum. The separate processes mean different sites, production equipment, and energy consumption of two sites. If the finished twisted yarn drum can be directly produced from the raw yarn in one integrated station, the equipment and site can be saved, thereby reducing energy consumption and labor cost, improving product quality, increasing economic benefits. TECHNICAL PROBLEM

[0003] In order to solve the defects of the traditional twisting devices including the doubling twisting machine and the ring spinning machine as pointed out in the background section, the present application provides a twisting process. The twisting device manufactured and configured based on the twisting process can combine the two separate processes of the traditional doubling twisting machine and the ring spinning machine into one, directly producing a finished yarn drum from raw yarn, thereby greatly saving the site occupation, power consumption, and labor cost of the parallel yarn and twisting production processes. TECHNICAL SOLUTION

[0004] Specifically, the present application provides a twisting process for twisting raw yarn to produce finished yarn. The twisting process comprises the following steps:

[0005] (Step one); the raw yarn is first passed through a twist stopper, and the raw yarn after passing through the twist stopper will proceed to the subsequent twisting member, and the twist stopper can prevent the twisting effect generated by the subsequent twisting member from being conducted to the raw yarn that has not passed through the twist stopper. The twist stopper can prevent the twist return generated by the raw yarn from interfering with the normal unwinding and traction of the raw yarn and the process requirements. The twist stopper can be conveniently used in the current market when it is implemented.

[0006] (Step two); the raw yarn passing through the twist stopper will continuously pass through two twisting processes, and the two twisting processes are respectively completed by the first twisting member and the second twisting member which implement rotational twisting on the raw yarn. The two twisting processes can be in the same direction, that is, the rotational twisting direction of the first twisting member and the second twisting member is consistent, so that the front and rear two twisting processes can effectively ensure the twisting effect of the finished yarn produced by the twisting process. In addition, for the twisting process provided by the present application, the rotational speed of the rotational twisting of the first twisting member and the second twisting member can be dynamically adjusted respectively at the same time, so that the mutual cooperation between the two twisting processes can be well coordinated to ensure that the twisting degree of the finished yarn always meets the relevant process requirements during the production of the finished yarn.

[0007] (Step three): the finished yarn produced by the raw yarn passing through the twist stopper and being twisted by the first twisting member and the second twisting member is collected. This step of collecting the finished yarn is a necessary final step required by the twisting device of the twisting process provided by the present application, that is, the finished yarn after the rotational twisting operation of the front and rear two twisting processes is wound into a finished yarn drum. In specific implementation, a single roller is generally used to rotate the twisted finished yarn into a finished yarn drum, or a double roller is used to clamp and pull the finished yarn to collect the finished yarn. Of course, there are other collection methods. All kinds of collection operations actually directly or indirectly provide power for unwinding the raw yarn from the raw yarn drum and pulling through the twist stopper and the front and rear two twisting members. The figure 1 in the specification shows the flow of the twisting process provided by the present application, that is, as shown in figure 1, the raw yarn will be sequentially collected from the "raw yarn input" shown in figure 1, through the "first twisting" and "second twisting" processes shown in figure 1 to become finished yarn, and then to the "finished yarn collection" process shown in figure 1. The twisting process indicated by the flow corresponds to the twisting equipment, which includes the "twist stopper", "first twisting member" and "second twisting member" shown in figure 1.

[0008] As a preferred embodiment of the above twisting process, in specific implementation, both the first twisting component and the second twisting component can be set as twisting components that perform false twist operation on the raw yarn, in this embodiment, the false twist operation performed by the first twisting component and the second twisting component on the raw yarn can be in the same direction, that is, as shown in the left and right views separated by a dotted line in FIG. 2 of the drawings, the two twisting processes correspond to two twisting components that perform false twist operation on the raw yarn, and the twist generated by the raw yarn at the input end and the output end of the twisting component is consistent, either both are front S twist direction and back Z twist direction, or both are front Z twist direction and back S twist direction. FIG. 2 of the drawings shows this preferred embodiment of the twisting process of the present application. In this preferred embodiment, the rotational speed of the rotational twist of the second twisting component can be set to be higher than the rotational speed of the rotational twist of the first twisting component. In order to facilitate the explanation of the twisting principle of the twisting process proposed by the present application when the two front false twist operations are performed, the scene shown in FIG. 2 is set as the false twist operation of the first twisting component and the second twisting component on the raw yarn not only in the same direction but also "the rotational speed of the rotational twist of the second twisting component performing false twist operation on the raw yarn" is higher than "the rotational speed of the rotational twist of the first twisting component performing false twist operation on the raw yarn", that is, in unit time, the second twisting component generates more false twist corresponding to the twist of the raw yarn than the first twisting component. The left and right views of FIG. 2 show two possible "same direction false twist" operation conditions of the first twisting component and the second twisting component on the raw yarn, and these two operation conditions are all possible operation conditions of the preferred embodiment of the twisting process proposed by the present application. As shown in the left and right views separated by a dotted line in FIG. 2, one possible same direction false twist operation condition is shown in the left view of FIG. 2, that is, the first twisting component and the second twisting component both generate front S back Z type twist direction, where "front" refers to the input end of the raw yarn of the twisting component, and "back" refers to the output end of the raw yarn; it is noted that the black arrows in FIG. 2 not only indicate the sequence of the processes included in the twisting process, but also indicate the sequence and direction of the raw yarn in the twisting equipment using the twisting process. Another "same direction false twist" operation condition is shown in the right view of FIG. 2, that is, the first twisting component and the second twisting component both generate front Z back S type twist direction.In actual implementation, the "finished yarn collection" process and its supporting finished yarn collection components will continuously pull the raw yarn through the first twisting component and the second twisting component in the direction indicated by the black arrow in FIG. 2. Therefore, the twist generated by the false twisting operation of the first twisting component before the first twisting component will be continuously pulled to the space between the first twisting component and the second twisting component as the raw yarn travels, and will neutralize the twist generated by the false twisting operation of the first twisting component on the raw yarn after the first twisting component and between the second twisting component and the first twisting component, thereby completely canceling out all the twists generated by the false twisting operation of the first twisting component. In addition, the inventors have found that in actual implementation, the twist generated by the false twisting operation of the first twisting component on the raw yarn between the second twisting component and the first twisting component can also neutralize the twist generated by the false twisting operation of the second twisting component on the raw yarn before the second twisting component and between the second twisting component and the first twisting component. In other words, as described above, in actual implementation of the optimization scheme, regardless of the two aforementioned "same direction false twisting" operation conditions, the twist generated by the first twisting component at the output end of the first twisting component between the second twisting component and the first twisting component can neutralize the twist generated by the first twisting component at the input end of the first twisting component and the twist generated by the second twisting component at the input end of the second twisting component. When the rotational speed of the false twisting operation of the second twisting component is set to be higher than the rotational speed of the false twisting operation of the first twisting component, the twist generated by the second twisting component at the input end of the second twisting component neutralized by the twist generated by the first twisting component at the output end of the first twisting component will of course leave a difference in the number of twists, because the number of twists generated by the false twisting operation of the second twisting component at the input end of the second twisting component will be more than the number of twists generated by the false twisting operation of the first twisting component at the output end of the first twisting component due to the higher rotational speed. The number of these remaining false twisting twists will certainly be less than the number of false twisting twists at the output end of the second twisting component, so that as the raw yarn passes through the second twisting component, the false twisting twists at the output end of the second twisting component will eventually leave a part of effective twisting twists even if they are neutralized by a part of the reversed false twisting twists at the input end of the second twisting component. Therefore, the finished yarn collected by the finished yarn collection process will have effective twists. This is the principle of the twisting process proposed by the present application, which can obtain finished yarn with effective twists even if both the first twisting process and the second twisting process are false twisting operations.

[0009] The present application also provides a twisting device for implementing a twisting operation on a raw yarn to produce a finished yarn, which is a twisting device that adopts the above-mentioned twisting process. Beneficial effects

[0010] In summary, as shown in FIG. 1 and FIG. 2, based on the twisting process provided by the present application, the twisting equipment manufactured by the twisting process can conveniently integrate the two separate processes required by the traditional double twisting machine and ring spinning machine into one twisting equipment, so as to complete the production from the raw yarn cylinder to the finished yarn cylinder in one integrated station, that is, the production target of the two separate processes required by the traditional double twisting machine and ring spinning machine can be achieved by a single twisting equipment, which saves the space, and saves the consumption of power energy and the corresponding labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0011] FIG. 1 is a schematic diagram of the twisting principle of the twisting process provided by the present application. The rounded rectangle in FIG. 1 indicates each step of the twisting process, that is, each process; the oblique line filled ellipse in the figure indicates each component corresponding to the corresponding step; the straight line connecting the processes indicated by the rounded rectangle and the components indicated by the oblique line filled ellipse in FIG. 1 refers to the raw yarn and the finished yarn processed by the twisting process and the corresponding twisting equipment, and the black arrow in FIG. 1 indicates the advancing direction of the raw yarn and the finished yarn and the sequence of each process. It should be pointed out that in actual implementation, the present application, like the various twisting processes and corresponding twisting equipment disclosed in the prior art, the "raw yarn input" process can also use a raw yarn cylinder as the raw material source of the raw yarn, and the "finished yarn collection" process can also produce a finished yarn cylinder as the final product.

[0012] Fig. 2 is a schematic diagram of the twisting principle of the twisting process provided by the present application using the twisting components for implementing false twist operation. Fig. 2 is divided into two sub-views by a vertical dotted line in the middle, which covers all two operation conditions of how the twisting process provided by the present application effectively twists the raw yarn in the scenario of using two false twist operations. Each of the left and right views respectively shows one of the two operation conditions. Like Fig. 1, the straight lines connecting the respective rounded rectangles and the oblique-filled ellipses in Fig. 2 refer to the raw yarn and the finished yarn processed by the twisting process and the corresponding twisting equipment. The black arrows in Fig. 2, like the arrows in Fig. 1, indicate the traveling direction of the raw yarn and the finished yarn and the sequence of the respective processes. It is pointed out that in order to facilitate the explanation of the twisting principle of the twisting process provided by the present application when implementing the two false twist operations in the same direction, the scenario shown in Fig. 2 is set as the false twist operations of the first twisting component and the second twisting component on the raw yarn not only are in the same direction but also the rotational speed of the rotational twisting of the false twist operation of the second twisting component on the raw yarn is higher than the rotational speed of the rotational twisting of the false twist operation of the first twisting component on the raw yarn, i.e., the second twisting component produces more corresponding twist turns of the false twist of the raw yarn than the first twisting component in unit time. This is reflected in Fig. 2 as the font of the “Z twist direction” and “S twist direction” marked before and after the false twist of the second twisting component is larger than the font of the “Z twist direction” and “S twist direction” marked before and after the false twist of the first twisting component. At the same time, in order to further distinguish the false twist turns before and after the false twist of the first and second twisting components, the “Z twist direction” and “S twist direction” marked before and after the first twisting component are highlighted with a gray background to distinguish from the second twisting component. As shown in Fig. 2, since the finished yarn collecting process continuously pulls the finished yarn when working and the raw yarn travels from the raw yarn input process to the finished yarn collecting process, the false twist turns marked with a gray background at the input end before the first twisting component will continuously pass through the first twisting component to the output end after the first twisting component between the first twisting component and the second twisting component, and neutralize with the false twist turns of the output end of the first twisting component. In specific implementation, the inventors found that the false twist turns of the output end of the first twisting component not only can neutralize the false twist turns formed by the input end of the first twisting component passing through the first twisting component to the output end of the first twisting component, but also can simultaneously neutralize the false twist turns formed at the input end of the second twisting component as shown by the bidirectional wavy arc arrows in Fig. 2, i.e., the false twist turns formed at the output end of the first twisting component can simultaneously neutralize the “false twist turns of the input end of the first twisting component that cross the first twisting component” and the “false twist turns of the input end of the second twisting component” at both ends.Since the rotation speed of the second twisting component is set to be higher than the first twisting component in the specific implementation, the false twist twist turns of the second twisting component input end are neutralized by the twist direction neutralization indicated by the bidirectional wavy arc arrow in Fig. 2, so that the false twist twist turns of the second twisting component input end are less than the false twist twist turns of the second twisting component output end in quantity. The false twist twist turns of the second twisting component input end formed at the second twisting component input end and neutralized by the twist direction neutralization indicated by the bidirectional wavy arc arrow in Fig. 2 are less than the false twist twist turns originally formed at the second twisting component output end. Therefore, even if the false twist twist turns of the second twisting component output end are neutralized by the false twist twist turns formed at the second twisting component input end of the second twisting component, the false twist twist turns of the second twisting component output end still have some effective twist turns. Therefore, in the preferred embodiment of the twisting process of the present application, even if the two twisting processes are both false twist operations, the finished yarn collected in the finished yarn collecting process still has effective twist turns. Thus, the production from the raw yarn to the finished yarn is realized in one step, and the purpose of the twisting process of the present application is achieved. Embodiment of the present application

[0013] The above summary is described in detail below in combination with the contents of the foregoing "BACKGROUND" and "BRIEF DESCRIPTION OF DRAWINGS".

[0014] Specifically, as mentioned before, when the twist process proposed in the present application includes two twist processes in front and back of the raw material yarn, both of which are not false twist operation but effective twist operation in the same direction, the effective twist turns generated by the two twist processes in front and back of the raw material yarn can be superimposed without any neutralization and offset of the twist turns, so that it can be completely ensured that the finished yarn collecting process can obtain the finished yarn with effective twist turns that meets the corresponding process requirements. Here, another preferred embodiment of the twist process proposed in the present application is mainly described in detail, that is, as mentioned before, both the two twist processes in front and back are false twist operation on the raw material yarn in the same direction. As mentioned before, Fig. 2 has included all two possible operation conditions of two false twist operations in the same direction in the form of left and right views, and the two possible operation conditions will be described in detail respectively. As mentioned before, in order to facilitate the description, the scene shown in Fig. 2 is set as the false twist operation of the first twist component and the second twist component on the raw material yarn not only in the same direction but also "the rotation speed of the rotation twist of the false twist operation of the second twist component on the raw material yarn" is higher than "the rotation speed of the rotation twist of the false twist operation of the first twist component on the raw material yarn", that is, the second twist component generates more false twist turns of the raw material yarn than the first twist component in unit time, which is reflected in Fig. 2 that the font of "Z twist direction" and "S twist direction" marked in front and back of the second twist component is larger than the font of "Z twist direction" and "S twist direction" marked in front and back of the first twist component in Fig. 2, and the larger font indicates more false twist turns.

[0015] As shown in the left view of FIG. 2, one of the two possible operating conditions of the preferred embodiment of the present application with two front and back false twist operations is that the "front and back twist back pairs" generated by the first and second twisting components are both S-Z, as shown in FIG. 2, the directions of the two twist back pairs of S-Z twist back pairs located before and after each twisting component are opposite and consistent in number, the "S twist direction twist back generated by the first twisting component before the input end of the first twisting component" is marked with a gray background in the left view of FIG. 2, when the raw yarn is stationary and does not move, the S twist direction twist back will not cross the first twisting component to reach the output end of the first twisting component and neutralize the "Z twist direction twist back generated by the first twisting component at the output end of the first twisting component located at the output end of the first twisting component", and once the raw yarn is continuously pulled through the first twisting component towards the second twisting component by the finished yarn collection process, the "S twist direction twist back generated by the first twisting component before the input end of the first twisting component" will cross the first twisting component to reach the output end after the first twisting component, that is, the S twist direction twist back indicated by the gray background in the left view of FIG. 2 will pass through the first twisting component to reach the output end of the first twisting component, at which time the "Z twist direction twist back generated by the first twisting component at the output end of the first twisting component located at the output end of the first twisting component" is found by the inventor during implementation to neutralize and cancel the S twist direction twist back on both sides at the same time; that is, as indicated by the bidirectional wavy arc-shaped arrow in the left view of FIG. 2, when the raw yarn continuously moves, the "Z twist direction twist back generated by the first twisting component at the output end of the first twisting component located between the first and second twisting components" can simultaneously neutralize and cancel the "S twist direction twist back generated by the first twisting component before the input end of the first twisting component" and the "S twist direction twist back generated by the second twisting component before the input end of the second twisting component".As the left view of the whole figure 2 represents the optimization scheme of the present application, when the second twisting component is set to implement the false twist operation at a higher rotational speed than the first twisting component, the inventor finds that the twist direction neutralization of the S-Z-S three-section twist back indicated by the bidirectional wavy arrow in figure 2 before the second twisting component will clear the two-section reverse twist back indicated by the small font gray background in figure 2, which is actually the reverse false twist twist back of the S twist direction and Z twist direction indicated by the small font gray background at the input end and output end of the first twisting component, while the S twist direction twist back at the input end of the second twisting component indicated by the large font is more than the number of false twist twist back generated by the first twisting component, so even if twist direction neutralization occurs, there will still be some S twist direction twist back left over, and the number of these remaining S twist direction twist back is definitely less than the Z twist direction false twist twist back at the output end of the second twisting component. Thus, when the remaining S twist direction twist back reaches the output end of the second twisting component with the raw material yarn passing through the second twisting component and neutralizes with the Z twist direction false twist twist back at the output end, the Z twist direction false twist twist back at the output end will not be completely neutralized by the S twist direction twist back, so that the raw material yarn reaching the finished yarn collection process will have some Z twist direction effective twist back at the output end of the second twisting component, that is, it will become a finished yarn with effective Z twist direction twist back, thus achieving the one-process requirement of the present application from the raw material yarn to the effectively twisted finished yarn. As a specific example, as shown in the left view of figure 2, for example, the first twisting component implements false twist operation on the raw material yarn to generate the first 100 S twist direction twist back and the last 100 Z twist direction twist back, while the second twisting component generates the first 200 S twist direction twist back and the last 200 Z twist direction twist back due to its higher speed than the first twisting component. The 100 S twist direction twist back at the input end of the first twisting component will reach the output end of the first twisting component through the first twisting component as described above, as shown by the bidirectional wavy arrow in the left view of figure 2. The inventor finds that the 100 Z twist direction twist back at the output end of the first twisting component indicated by the gray background can simultaneously neutralize the "100 S twist direction twist back formed at the input end of the first twisting component and passing through the first twisting component" and "100 S twist direction twist back generated by the second twisting component at the input end of the second twisting component".Since the second twisting member generates more than 100 of 200 S twist direction twist turns at its input end due to high rotation speed, even if 100 of the 200 S twist direction twist turns generated at the input end of the second twisting member are neutralized, there are still 100 S twist direction twist turns left, and the number of these remaining 100 S twist direction twist turns is definitely lower than the 200 Z twist direction twist turns at the output end of the second twisting member. Thus, when these remaining 100 S twist direction twist turns pass through the second twisting member to reach the output end of the second twisting member, neutralization with the 200 Z twist direction twist turns will leave 100 effective Z twist direction twist turns. The finished yarn collected by the finished yarn collecting procedure thus has at least 100 effective Z twist direction twist turns. The right view of FIG. 2 shows the other of the two possible working conditions in the optimization scheme, i.e., the "front-back twist turn pair" generated by the first and second twisting members is Z-S. The front-back twist turns generated by each procedure in this working condition are actually just the opposite of the front-back twist turns generated by the corresponding procedures in the foregoing working condition, and this working condition can also achieve the one-process technological requirement of the present application from the raw yarn to the effectively twisted finished yarn.

[0016] As shown in the right view of Fig. 2, another possible operating condition of the preferred embodiment of the present application with two front and back false twist operations is that the "front and back twist back pairs" generated by the first and second twist members are both Z-S, as shown in Fig. 2, the directions of the two twist backs of the Z-S twist back pairs located before and after each twist member are opposite and consistent in number, the "Z twist direction twist back before the first twist member generated by the first twist member" is marked with a gray hatching in the right view of Fig. 2, when the raw yarn is stationary and does not move, the Z twist direction twist back does not cross the first twist member to reach the output end of the first twist member and neutralize the "S twist direction twist back at the output end of the first twist member generated by the first twist member at the output end", while once the raw yarn is continuously pulled through the first twist member towards the second twist member by the finished yarn collection process, the "Z twist direction twist back before the first twist member generated by the first twist member" located at the input end of the first twist member will cross the first twist member to reach the output end after the first twist member, that is, the Z twist direction twist back indicated by the gray hatching in the right view of Fig. 2 will pass through the first twist member to reach the output end of the first twist member, at which time the "S twist direction twist back at the output end of the first twist member generated by the first twist member at the output end" shown in the right view of Fig. 2 can be found to neutralize and cancel the Z twist direction twist back on both sides at the same time when the inventors implement it; that is, as indicated by the bidirectional wavy arc-shaped arrow in the right view of Fig. 2, when the raw yarn continuously moves, the "S twist direction twist back at the output end of the first twist member generated by the first twist member at the output end to implement false twist operation" located between the first and second twist members can simultaneously neutralize the "Z twist direction twist back before the first twist member generated by the first twist member to implement false twist operation" and the "Z twist direction twist back before the second twist member generated by the second twist member to implement false twist operation".As the right view of the whole figure 2 represents the optimization scheme of the present application, when the second twisting component is set to implement the false twist operation at a higher rotational speed than the first twisting component, the inventor finds that the twist direction neutralization of the Z-S-Z three-section twist back indicated by the bidirectional wavy arrow in figure 2 before the second twisting component will clear the two-section reverse twist back indicated by the small font gray background in figure 2, which is actually the reverse false twist twist back of the Z twist direction and S twist direction indicated by the small font gray background at the input end and output end of the first twisting component respectively, while the Z twist direction twist back at the input end of the second twisting component indicated by the large font is more than the number of false twist twist back generated by the first twisting component, so even if twist direction neutralization occurs, there will still be some Z twist direction twist back left over, and the number of these remaining Z twist direction twist back is definitely less than the S twist direction false twist twist back at the output end of the second twisting component. Therefore, when the remaining Z twist direction twist back reaches the output end of the second twisting component with the raw material yarn passing through the second twisting component, the S twist direction false twist twist back at the output end will not be completely neutralized by the Z twist direction twist back, so that the raw material yarn reaching the finished yarn collection process will have a part of the S twist direction effective twist back at the output end of the second twisting component, that is, it becomes a finished yarn with effective S twist direction twist back, thus achieving the one-process requirement of the present application from the raw material yarn to the effectively twisted finished yarn. As a specific example, as shown in the right view of figure 2, for example, the first twisting component implements false twist operation on the raw material yarn to generate the first 100 Z twist direction twist back and the last 100 S twist direction twist back, while the second twisting component generates the first 200 Z twist direction twist back and the last 200 S twist direction twist back due to its higher speed than the first twisting component. The 100 Z twist direction twist back at the input end of the first twisting component will reach the output end of the first twisting component through the first twisting component as described above, as shown by the bidirectional wavy arrow in the right view of figure 2. The inventor finds that the 100 S twist direction twist back at the output end of the first twisting component indicated by the gray background can simultaneously neutralize the "100 Z twist direction twist back at the input end of the first twisting component indicated by the gray background, which is formed and passes through the first twisting component" and "100 Z twist direction twist back at the input end of the second twisting component generated by the false twist operation of the second twisting component".Since the second twisting component generates more than 100 of 200 Z-twist twists at its input end due to the high rotational speed, even if 100 of the 200 Z-twist twists generated at the input end of the second twisting component are neutralized, there are still 100 Z-twist twists left, and the number of the remaining 100 Z-twist twists is certainly lower than the 200 S-twist twists at the output end of the second twisting component. Thus, when the remaining 100 Z-twist twists reach the output end of the second twisting component, they will neutralize the 200 S-twist twists and leave 100 effective S-twist twists. In this way, the finished yarn collected by the finished yarn collecting procedure has at least 100 effective S-twist twists.

[0017] When the optimization embodiment is implemented, as shown in FIG. 2, the two same-direction false twist operations before and after can be adjusted by adjusting the rotational speeds of the first and second twisting components to adjust the degree of neutralization of the twist turns between the first and second twisting components, thereby adjusting the final twisting degree of the finished yarn to meet the corresponding twisting process requirements. Industrial applicability

[0018] In summary, with reference to FIGS. 1 and 2, the twisting device manufactured based on the twisting process provided by the present application can produce the finished yarn barrel that needs two processes of the traditional double-twisting machine and the ring spinning machine in a single process by properly configuring the process parameters such as the rotational speed of the rotational twisting.

[0019] It should be noted that the above description of the specific embodiments is not intended to limit the embodiments of the present application, and the present application certainly has various possible implementations and various optimizations and improvements in the specific implementation. Any modification, replacement, and conventional improvement made within the technical principles of the present application, as long as it is based on the technical principles of the present application, is included in the scope of the patent protection of the patentee declared in the claims of the present application.

Claims

1. A twisting process for twisting a raw yarn to produce a finished yarn, the twisting process characterized by comprising the following steps: (Step one) passing the raw yarn through a twist stopping component first, the raw yarn passing through the twist stopping component will then proceed to a subsequent twisting component, the twist stopping component can prevent the twisting effect generated by the subsequent twisting component from being conducted to the raw yarn that has not yet passed through the twist stopping component; (Step two) the raw yarn passing through the twist stopping component will successively pass through two twisting processes, the two twisting processes are respectively completed by a first twisting component and a second twisting component that perform rotational twisting on the raw yarn; the two twisting processes can be in the same direction, that is, the rotational twisting direction of the first twisting component and the second twisting component is consistent; the rotational speed of the rotational twisting of the first twisting component and the second twisting component can be dynamically adjusted simultaneously and separately; (Step three) collecting the finished yarn produced by the raw yarn that has passed through the twist stopping component and has been successively twisted by the first twisting component and the second twisting component.

2. The twisting process according to claim 1, characterized in that: the first twisting component and the second twisting component are both twisting components that perform false twisting on the raw yarn, the false twisting performed by the first twisting component and the second twisting component on the raw yarn can be in the same direction, and the rotational speed of the rotational twisting of the second twisting component can be set to be higher than the rotational speed of the rotational twisting of the first twisting component.

3. A twisting device for twisting raw yarn to produce finished yarn, characterized in that: the twisting device adopts the twisting process according to claim 1.

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