A method and components for starting a ring spinning endpiece

Abstract

The present application relates to the technology of the ring spinning yarn end breakage reconnection, specifically to a kind of head forming method and component for ring spinning yarn joint, the head forming method for ring spinning yarn joint passes through the hollow tube of tubular needle or the opening of open-hole needle, the yarn head of joint lead yarn is pierced into the yarn of tube yarn spinning section position by needle carrying joint lead yarn, when needle withdraws, the yarn head of joint lead yarn is not withdrawn by the friction force of tube yarn, the connection of joint lead yarn and tube yarn is realized;The head forming component for ring spinning yarn joint includes tubular needle or open-hole needle, also includes guide needle sleeve and telescopic driving component, compared with prior art, the head forming method and component for ring spinning yarn joint of the present application do not need to find the end breakage of original yarn on tube yarn when head forming, do not shake head after head forming, work stability, head forming efficiency is high, structure is simple.

Description

Technical Field

[0001] This invention relates to a technique for rejoining broken ends of ring-spun yarn, specifically a method and component for generating yarn ends in ring-spun yarn splicing. The method involves passing the yarn end of the yarn guide through the hollow tube of a tubular needle or through the opening of an open needle. The needle, carrying the yarn end of the yarn guide, inserts it into the yarn at the spinning section of the bobbin. When the needle is withdrawn, the yarn end of the yarn guide is prevented from retracting due to friction with the bobbin yarn, thus connecting the yarn guide to the bobbin. The generating component for ring-spun yarn splicing includes a tubular needle or an open needle, a yarn guide sleeve, and a telescopic drive component. Compared to existing technologies, the method and component for generating yarn ends in ring-spun yarn splicing of this invention do not require finding the broken end of the original yarn on the bobbin, prevent yarn slippage after generating, offer high operational stability and efficiency, and have a simple structure. Background Technology

[0002] Although automatic splicing devices for ring spinning machines have been developed, capable of automatically splicing ring-spun yarns, and some related patents exist both domestically and internationally, significant issues remain regarding practical feasibility and operational success rates. Reliable yarn-starting technology is a crucial aspect of automatic splicing technology for ring spinning. There are generally two methods for yarn-starting: one is to locate the broken yarn end on the broken yarn bobbin, and the other is to connect the splicing yarn to the broken yarn bobbin. Typically, negative pressure suction is used to locate the broken yarn end on the broken yarn bobbin, and the splicing yarn is then connected to it by winding. However, negative pressure suction for finding the yarn end has a high failure rate. Existing mechanisms for winding the splicing yarn onto the bobbin are complex, and yarn ends are easily ejected after the splicing process, causing splicing failure.

[0003] In view of these problems, the present invention discloses a method and component for generating yarn heads for ring spinning splices. A hollow tubular needle component or an open needle component with a hole at the end guides the yarn head for the splice into the spinning section of the bobbin on the spinning machine. Reliable connection between the yarn head and the original bobbin yarn head is achieved through friction. The method and component for generating yarn heads for ring spinning splices described in this invention do not require finding broken ends of the original yarn on the bobbin, thus improving the stability of the splicing process and reducing the splicing time. The structure is simple and reliable, and the yarn head is completely held in place by the bobbin, preventing it from protruding after generation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a method and components for creating a splice in ring-spun yarn. The solution is: a method for creating a splice in ring-spun yarn, characterized by...

[0005] One end of the yarn guide is passed through a tubular needle or a perforated needle. The tubular needle is a hollow tubular component with a pointed end, and the perforated needle is a sewing machine needle-like component with a hole at the pointed end. When the yarn guide is passed through the tubular needle, the free end of the yarn guide passes through the hollow tube of the tubular needle and extends out a certain length from the pointed end. When the yarn guide is passed through the perforated needle, the free end of the yarn guide passes through the hole at the pointed end of the perforated needle and extends out a certain length.

[0006] When a yarn breaks during ring spinning, the following two steps are used to regenerate the yarn:

[0007] Step 1: Insert or pierce the fine yarn on the broken yarn tube in a stationary state by inserting the tip of the tubular needle with the connector and the yarn guide.

[0008] Step 2: Pull the tubular needle or perforated needle out of the fine yarn, leaving the yarn end of the yarn guide in the tube, thus completing the yarn start-up process;

[0009] After the initial yarn is formed, the tubular needle or the perforated needle continues to move to guide the splicing yarn to complete the remaining actions required for splicing. During the process of completing the remaining actions required for splicing, the splicing yarn is pulled out from the hole of the tubular needle or the perforated needle. After completing the remaining actions required for splicing, the splicing yarn is cut off. When cutting, a length is left outside the tubular needle or the perforated needle. When the initial yarn is formed again, the first and second steps are repeated.

[0010] The length of the section is generally 5-40mm. Too short is not conducive to yarn growth, and too long can easily cause the yarn end to fly out of the bobbin after yarn growth. It is preferably 10-30mm.

[0011] When inserting or piercing the yarn on the broken yarn tube, it is preferable to insert the yarn at the height of the spinning section, which is beneficial to the formation of the yarn tube. However, it is also possible to insert or pierce the yarn at other heights of the yarn tube.

[0012] A starting component for ring-spun yarn splicing, which uses the aforementioned starting method for ring-spun yarn splicing, includes a tubular needle or an open needle.

[0013] The tubular needle is a hollow tubular component with a pointed end, which can penetrate the connector yarn guide and carry the yarn head of the connector yarn guide into the position of the spinning section of the tube yarn.

[0014] The perforated needle is a needle-like component of a sewing machine. Near the needle tip, there is an opening that allows the yarn to pass through the connector and be inserted into the spinning section of the bobbin.

[0015] Pass the free end of the yarn guide through the tubular needle or the perforated needle, so that the yarn guide extends a certain length beyond the tip of the tubular needle or the opening of the perforated needle. The extension length is generally 5-40mm. Too short is not conducive to yarn growth, and too long will easily cause the yarn end to fly out of the tube after yarn growth. 10-30mm is preferred. This state is the preparation state.

[0016] When the aforementioned yarn-generating component is used for splicing broken yarn in ring spinning, it is mounted on a moving component with at least three orthogonal degrees of freedom. During the ring spinning process, when the spindle breaks, the moving component carries the movement of a tubular needle or an open-hole needle, causing the needle to pierce or penetrate the broken yarn in a stationary state. The preferred piercing position is at the spinning section of the yarn, but it can also pierce at other heights. The needle is then pulled out of the yarn. The yarn end of the splicing guide is not pulled out along with the needle due to the squeezing and friction of the yarn in the bobbin, thus pressing the yarn end inside the bobbin yarn. This connects the yarn end to the bobbin, completing the yarn-generating process. After the needle continues to move and completes the subsequent actions required for splicing, it cuts the yarn end. During cutting, a length of the yarn end is left outside the needle. When yarn-generating is needed again, the piercing and pulling process is repeated.

[0017] After the initial yarn feeding is completed, the tubular needle or perforated needle needs to continue moving to complete the splicing actions required for the joint, such as threading the wire loop, winding the air ring, winding the guide hook, and winding the roller. During these actions, the yarn being fed out from the tip of the tubular needle or the opening of the perforated needle is pulled out. Because the direction of the yarn being fed out from the tip of the tubular needle or the opening of the perforated needle is not consistent with the direction of the opening itself, the frictional force applied to the yarn being fed out from the tip of the tubular needle or the opening of the perforated needle increases. This makes it difficult for the yarn to be pulled out from the tip of the tubular needle or the opening of the perforated needle. Therefore, the initial yarn feeding component also includes a guide needle sleeve and a telescopic drive component.

[0018] The yarn guide needle sleeve is a hollow component with open ends that is fitted over a tubular needle or a perforated needle. The yarn guide needle sleeve and the tubular needle or the perforated needle have a degree of freedom to move relative to each other along the direction of the needle tip. There are two extreme positions for the relative movement between the yarn guide needle sleeve and the tubular needle or the perforated needle. One extreme position corresponds to the tip of the tubular needle or the perforated needle being able to extend out of the yarn guide needle sleeve and pierce or penetrate the yarn tube. The other extreme position corresponds to the tip of the tubular needle or the perforated needle being completely retracted into the yarn guide needle sleeve. The end face of the yarn guide needle sleeve near the tip of the tubular needle or the perforated needle is perforated to serve as a yarn outlet guide connector to guide the yarn when the tubular needle is retracted into the yarn guide needle sleeve.

[0019] The telescopic drive component is a component that drives relative movement between the tubular needle and the yarn guide sleeve or between the perforated needle and the yarn guide sleeve. The telescopic drive component is directly or indirectly installed between the tubular needle and the yarn guide sleeve or between the perforated needle and the yarn guide sleeve. The telescopic drive component can be a return spring, a cylinder, an electromagnet, a linear motor or a linear displacement mechanism, etc. Preferably, it is a return spring installed in the annular space between the tubular needle and the yarn guide sleeve or between the perforated needle and the yarn guide sleeve. The return spring causes the tip of the tubular needle or the perforated needle to retract into the yarn guide sleeve in a natural state.

[0020] Using the above components, when the yarn-generating component is used for splicing after a breakage in ring-spun yarn, the needle (tubular needle or perforated needle) or guide needle sleeve of the yarn-generating component is mounted on a moving component with at least three orthogonal degrees of freedom. When yarn breakage occurs and yarn generation is required, the moving component carries the yarn-generating component to a position close to the spinning section of the bobbin. The yarn-generating component pierces the broken bobbin spinning section along the tip direction of the tubular needle or perforated needle. At this time, the guide needle sleeve and the tubular needle or perforated needle are relatively displaced, causing the tubular needle or perforated needle to carry the splice guide yarn and pierce or penetrate the yarn already spun on the bobbin. The yarn-generating component leaves the broken spindle along the tubular needle or perforated needle, and the telescopic drive component drives the guide needle sleeve to be positioned relative to the tubular needle or perforated needle. As the yarn guide retracts into the guide needle sleeve, the outer diameter of the opening at the end of the guide needle sleeve corresponding to the tip of the tubular or perforated needle is relatively large, and the entire circumference is flat. During the subsequent jointing actions such as threading the steel wire loop, winding the air ring, winding the guide hook, and winding the rubber roller, the yarn guide is pulled out from the opening at the end of the guide needle sleeve corresponding to the tip of the tubular or perforated needle. The additional friction force exerted by the guide needle sleeve on the joint guide is significantly less than the friction force exerted by the tubular or perforated needle on the joint guide. It also ensures that the direction of movement of the joint guide when it comes out from the tip of the tubular or perforated needle is consistent with the direction of the tip of the tubular or perforated needle, which is conducive to adding a stable friction force to the joint guide.

[0021] The present invention provides a stable and rapid yarn-generating component for ring spinning yarn splicing. It features a simple structure and reliable operation. Because the free end of the yarn guide at the splice is squeezed by the bobbin, it effectively prevents the free end of the yarn guide from being thrown out, thereby improving the splicing success rate and reducing exposed yarn ends in subsequent winding processes. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the yarn-forming method and component structure for ring-spun yarn splicing according to the present invention. Figure 1 .

[0023] Figure 2 This is a schematic diagram of the yarn-forming method and component structure for ring-spun yarn splicing according to the present invention. Figure 2 .

[0024] Figure 3 This is a schematic diagram illustrating the working principle of the yarn-forming method and components for ring spinning yarn splicing according to the present invention. Figure 1 .

[0025] Figure 4 This is a schematic diagram illustrating the working principle of the yarn-forming method and components for ring spinning yarn splicing according to the present invention. Figure 2 .

[0026] Figure 5 This is a schematic diagram of the principle of the method and components for starting a yarn splice in ring spinning according to the present invention, Example 2.

[0027] Figure 6 This is a schematic diagram of the principle of the method and components for starting up ring-spun yarn splicing according to the present invention, Example 4. Figure 1 .

[0028] Figure 7 This is a schematic diagram of the principle of the method and components for starting up ring-spun yarn splicing according to the present invention, Example 4. Figure 2 .

[0029] In the diagram: 1. Tubular needle; 11. Another type of tubular needle; 12. Another type of yarn guide needle sleeve; 2. Return spring; 3. Yarn guide needle sleeve; 4. Yarn guide connector; 5. Raw yarn; 6. Spinning section; 7. Yarn tube; 8. Hole-opening needle. Detailed Implementation

[0030] The following are several specific embodiments of the method and components for starting a ring-spun yarn splice according to the present invention, with reference to the figures. These embodiments are merely illustrative examples of the present invention and do not constitute a limitation on the claims of the present invention. Any aspects not covered in the present invention are applicable to the prior art.

[0031] Example 1 of the present invention for a method of starting a thread for splicing ring-spun fine yarn (see Figures 1-4 ):

[0032] A method for starting up the yarn splice in ring spinning, such as Figures 1-2 As shown, one end of the connector yarn 4 is passed through the tubular needle 1 and a section of yarn is left outside the tip of the tubular needle 1. The tubular needle 1 is a needle-shaped component with a hollow tip, which is the shape of a syringe needle.

[0033] When a yarn breakage occurs during ring spinning, first stop the spindle with a spindle brake, or pull the yarn bobbin off the spindle to stop its rotation, and then follow the steps below to regenerate the yarn:

[0034] Step 1: As Figure 3The tubular needle 1 with a connector yarn guide 4 inside is brought close to the bobbin 7, and then the tubular needle 1 is inserted into the bobbin 7 in a stationary state. The height position of the insertion into the bobbin 7 is preferably at the height of the spinning section 6, but it is also possible to insert it into the fine yarn at a height position lower than the height of the spinning section 6, so that the tubular needle 1 passes through several layers of original yarn 5 that have been spun on the bobbin 7. The connector yarn guide 4 and the tubular needle 1 pass through several layers of original yarn 5 together.

[0035] Step 2: As Figure 4 As shown, when the tubular needle 1 is withdrawn from the position of the spinning section 6, the splice yarn 4 will not follow the withdrawal of the tubular needle 1 due to the friction of the original yarn 5, thereby pressing the yarn end of the splice yarn 4 inside the original yarn 5, realizing the connection between the splice yarn 4 and the spinning section 6, and completing the yarn start-up.

[0036] After the yarn is formed, the tubular needle guides the yarn guide to continue moving to complete the subsequent actions required for the joint, such as threading the steel wire loop, wrapping the air ring, wrapping the guide hook, and wrapping the rubber roller. Then, the yarn guide is cut off. During these actions, the yarn guide is pulled out from the tip of the tubular needle. When it is cut, a length is left outside the tubular needle. When the yarn is formed again, the actions of steps 1 and 2 are repeated.

[0037] Figure 3 , Figure 4 The tubular needle 1 pierces part of the original yarn 5 on the bobbin. After the yarn is formed, a small part of the connector yarn 4 may be exposed outside the original yarn 5. If the tubular needle 1 does not pierce the bobbin, most of the connector yarn will be buried in the bobbin after the yarn is formed, unless the length of the connector yarn 4 outside the tip of the tubular needle 1 is too long, which may expose the end of the connector yarn 4 at the position where the tubular needle 1 pierces the bobbin.

[0038] Normally, the yarn guide 4 is unwound from the roll, but other forms of yarn guide are not excluded.

[0039] Example 2 of the present invention: A method for starting a yarn splice in ring spinning (see...) Figures 1-5 ):

[0040] The difference between this embodiment and Embodiment 1, which is a method for creating a yarn head in ring spinning, is that:

[0041] In this embodiment, the tubular needle 1 described in Embodiment 1 of the method for starting the yarn splice in ring spinning is replaced with... Figure 5The perforated needle 8 shown is a sewing machine needle-like component with a perforation at its tip. The thread guide 4 passes through the perforation at the end of the perforated needle 8, leaving a section of yarn end. When the perforated needle 8 pierces the yarn tube and is then pulled out, the thread guide 4 remains inside the yarn tube, completing the yarn start-up. The side of the perforation away from the tip of the perforated needle 8 has a groove along the needle length. When the thread guide on the side of the perforation away from the tip of the perforated needle 8 is straightened, it will be in the groove. When the perforated needle 8 is pulled out of the yarn tube, the frictional force on the thread guide on the side of the perforation tip is greater than the frictional force on the side of the perforation away from the tip, so that the thread guide remains inside the yarn tube when the perforated needle 8 is withdrawn.

[0042] Embodiment 1 of the present invention: a starting component for a ring-spun yarn splice (see Figures 1-4 ):

[0043] A starting component for ring spinning yarn splicing includes a tubular needle 1, which is a hollow tubular component with a pointed end, similar to a syringe needle. When the starting component is used for ring spinning yarn splicing, the tubular needle 1 is installed on a moving component with at least three orthogonal degrees of freedom. The free end of the splice yarn 4 unwound from the package passes through the tubular needle 1, with the end extending beyond the tip of the tubular needle 1 for a length of 5-50 mm (preferably 10-30 mm). This state is the ready state.

[0044] When a spindle breaks during ring spinning, a moving part with at least three degrees of freedom carries a tubular needle 1 and moves it along the tip of the needle so that its tip pierces or penetrates the yarn at the location of the broken section 6 of the spinning tube 7. When the tubular needle 1 is pulled out of the yarn, the yarn end of the connector yarn 4 is squeezed and rubbed by the tube yarn and will not follow the tubular needle 1 out. This causes the yarn end of the connector yarn 4 to be pressed inside the original yarn, thus connecting the connector yarn 4 to the tube yarn and completing the yarn generation. After the tubular needle 1 continues to move and completes the necessary actions for the connector, the connector yarn is cut off. When the yarn is cut off, a length is left outside the tip of the tubular needle. When yarn generation is needed again, the process of inserting and pulling out the tubular needle 1 is repeated.

[0045] Embodiment 2 of the present invention: a starting component for a ring-spun yarn splice (see Figure 5 ):

[0046] use Figure 5 The perforated needle 8 shown replaces the tubular needle 1 in Embodiment 1 of the raw needle component. The perforated needle 8 is a sewing machine needle component. Generally, machine needles have grooves. Figure 5The position indicated by "8" has a groove along the length of the needle on the back. After the yarn guide on the left side of the opening of the needle head is straightened, it will be in the groove. When the opening needle head 8 is pulled out of the bobbin, the yarn guide on the left side of the opening of the needle head 8 is in the groove, and the friction between it and the bobbin is less than the friction between the yarn guide on the right side of the opening of the needle head 8 and the bobbin. This allows the yarn guide on the right side of the opening of the needle head 8 to remain in the bobbin, thus completing the head formation.

[0047] Embodiment 3 of the present invention: a starting component for a ring-spun yarn splice (see Figures 1-4 ):

[0048] When the aforementioned yarn-forming component is used for splicing ring-spun yarn, after the yarn-forming component in Embodiment 1 has completed its formation, the tubular needle 1 needs to continue moving to complete the splicing actions required for the joint, such as threading the steel wire loop, winding the air ring, winding the guide hook, and winding the rubber roller. During these actions, the splicing yarn 4 is pulled out from the tip exit of the tubular needle. Because the direction of the splicing yarn 4 when it exits the tip exit of the tubular needle is not consistent with the direction of the tip exit of the tubular needle, the frictional force applied to the splicing yarn by the tip exit of the tubular needle 1 increases, which is not conducive to the splicing yarn being pulled out from the tip exit of the tubular needle. For example, when the direction of the splicing yarn 4 when it exits the tip exit of the tubular needle is opposite to the direction of the tip of the tubular needle, the frictional force between the splicing yarn and the tip exit of the tubular needle may increase to the point that it is easy to damage or break the yarn. The same problem exists when using the perforated needle 8, as the splicing yarn may also get caught around the perforated needle 8. Therefore, based on embodiment 1 of the yarn-growing component, a guide needle sleeve 3 and a return spring 2 as a telescopic drive component are added to the yarn-growing component, such as... Figures 1-4 As shown.

[0049] The yarn guide needle sleeve 3 is a cylindrical hollow component with openings at both ends. It can accommodate a tubular needle 1 and a return spring 2, and it limits the movement of the tubular needle 1 so that it can only move back and forth along the axial direction. Figure 1 The end face of the yarn guide sleeve 3 near the needle tip of the tubular needle 1 has an opening for guiding the yarn outlet 4 when the tubular needle 1 retracts into the yarn guide sleeve 3; the reset spring 2 is installed between the tubular needle 1 and the yarn guide sleeve 3, and in its natural state, it keeps the tubular needle 1 retracted.

[0050] When the starting component of this embodiment is applied to the ring spinning yarn splicing device, the tubular needle 1 is mounted on a moving component with at least three degrees of freedom of motion. The moving component carries the starting component near the spinning section 6 on the bobbin 7. When the tubular needle 1 moves towards its tip, the guide needle sleeve 3 first contacts the bobbin, the return spring 2 is compressed, and the tip of the tubular needle 1 extends out of the guide needle sleeve 3 and pierces into the spinning section 6. The tubular needle 1, carrying the splicing yarn guide 4, pierces through several layers of the original yarn 5 that have already been spun. When the tubular needle 1 retracts in the opposite direction of the feeding movement, the return spring 2 causes the tubular needle 1 and the guide needle sleeve 3 to move relative to each other. The tubular needle 1 retracts into the guide needle sleeve 3, and the splicing yarn guide 4, due to the interaction between it and the original yarn 5, pierces through the bobbin 7. The frictional force prevents the yarn from retracting with the tubular needle 1, thus keeping the yarn end of the yarn guide 4 at the spinning section 6 and pressed inside by several layers of original yarn 5, preventing it from easily coming out. Then, the yarn guide sleeve 3 guides the yarn guide 4 through the hole near the tip of the tubular needle to complete the subsequent ring spinning yarn splicing actions such as hanging the steel wire ring and wrapping the rubber roller. The additional frictional force exerted by the yarn guide sleeve 3 on the yarn guide is significantly less than the frictional force exerted by the tubular needle 1 on the yarn guide, and ensures that the moving direction of the yarn guide 4 when it comes out from the tip of the tubular needle 1 is consistent with the tip direction of the tubular needle. This facilitates the addition of stable frictional force on the yarn guide, and also protects the tubular needle, preventing damage to the tubular needle and reducing wear on the tip of the tubular needle.

[0051] Embodiment 4 of the present invention: a starting component for a ring-spun yarn splice (see Figures 6-7 ):

[0052] In this embodiment, the yarn guide pin sleeve is... Figure 6 , 7 Another type of yarn guide needle sleeve 12 shown has a tubular needle tip. Figure 6 , 7 The other tubular needle 11 shown in the figure does not have a return spring 2 between it and the other yarn guide needle sleeve 12. When the yarn-forming component of this embodiment is used in the ring spinning yarn splicing device, the other yarn guide needle sleeve 12 is installed on a moving component with at least three orthogonal degrees of freedom. A needle drive component (not shown in the figure) that drives the other tubular needle 11 to move along its tip direction is installed between the other tubular needle 11 and the moving component. Such as a cylinder, electromagnet, linear motor, or linear displacement mechanism, etc. The moving component carries the other yarn guide needle sleeve 12 near the spinning section 6 on the yarn tube 7. The needle drive component drives the other tubular needle 11 to move along its tip direction. Figure 6 , 7 After moving to the right, the tip of another tubular needle 11 extends out of the hole at the right end of another yarn guide needle sleeve 12 (as shown). Figure 7 The needle is inserted into the yarn tube at the middle position, and the needle drive component then drives another tubular needle 11 to retract to the middle position. Figure 6Complete the head formation at the corresponding position.

[0053] Of course, it is not excluded that another type of tubular needle 11 is installed on a moving part with at least three orthogonal degrees of freedom of movement. Another yarn guide needle sleeve 12 is installed between the moving part and a needle sleeve driving part that drives the other yarn guide needle sleeve 12 to move along the length direction of the other type of tubular needle 11. This part is used to drive the other yarn guide needle sleeve 12 to move relative to the other type of tubular needle 11, and to cooperate with the movement of the moving part to complete the insertion and withdrawal actions required for the new needle.

[0054] In embodiments 3 and 4 of the yarn guide sleeve 3 and another yarn guide sleeve 12 used for the yarn feeding component of ring spinning splicing, the yarn guide needle sleeve 3 and another yarn guide needle sleeve 12 are yarn guiding components. In embodiment 3, the yarn guide needle sleeve 3 is assembled with the tubular needle head 1 as a whole, and no other driving components are needed except for the return spring, which is simpler. In embodiment 4, the other yarn guide needle sleeve 12 can actually be changed into an independent ring-shaped yarn guiding component. As long as the tubular needle head passes through the yarn guide component and pierces the bobbin when it is fed along the tip, and the tubular needle head is pulled out and retracted until the tip is located on the side of the yarn guide component away from the bobbin, the yarn guiding component can be classified as a yarn splicing device.

[0055] This invention is not limited to the embodiments discussed above. Those skilled in the art can deduce other variations based on this invention, and these variations are also part of the subject matter of this invention.

Claims

1. A method for starting a splicing process of a ring spinning yarn, characterized in that a splicing yarn is inserted through a tubular needle or a slotted needle, the tubular needle being a hollow tubular member with a pointed tip at one end, the slotted needle being a sewing machine needle member with a hole at the pointed tip, the insertion of the splicing yarn through the tubular needle means that the free end of the splicing yarn is inserted through the hollow tube of the tubular needle and then extends out of the pointed tip of the tubular needle by a length, the insertion of the splicing yarn through the slotted needle means that the free end of the splicing yarn is inserted through the hole of the pointed tip of the slotted needle and then extends out of the hole by a length, after the yarn breaks during the ring spinning process, the starting process is carried out according to the following two steps: first step: the pointed tip of the tubular needle or the slotted needle is inserted into or through the yarn on the broken tube yarn in a stationary state; second step: the tubular needle or the slotted needle is pulled out of the yarn, the yarn end of the splicing yarn is left in the tube yarn, and the starting process is completed; after the starting process is completed, the tubular needle or the slotted needle continues to move to guide the splicing yarn to complete the remaining actions required for splicing, during the completion of the remaining actions required for splicing, the splicing yarn is pulled out of the hole of the tubular needle or the slotted needle, the splicing yarn is cut off after the completion of the remaining actions required for splicing, a length of the splicing yarn is left outside the tubular needle or the slotted needle when it is cut off, the length is 10-30 mm, and the first step and the second step are repeated when the starting process is needed again.

2. A thread-up component for a ring spinning splicer, characterized in that The method for starting a splicing process of a ring spinning yarn according to claim 1 is used to start a splicing process, and the method comprises a tubular needle or a slotted needle, the tubular needle being a hollow tubular member with a pointed tip at one end, the slotted needle being a sewing machine needle member with a hole at the pointed tip, the starting member is used in a splicing device after the yarn breaks during the ring spinning process, the starting member is installed on a moving member with at least three degrees of freedom in orthogonal directions, the free end of the splicing yarn is inserted through the tubular needle or the slotted needle, when the yarn breaks during the ring spinning process, the moving member carries the tubular needle or the slotted needle to move, the tubular needle or the slotted needle is inserted into or through the yarn on the broken tube yarn in a stationary state, the tubular needle or the slotted needle is pulled out of the yarn, the starting process is completed, the moving member carries the tubular needle or the slotted needle to continue to move to complete the subsequent actions required for splicing, and the splicing yarn is cut off when the subsequent actions required for splicing are completed, and the insertion and pulling-out process is repeated when the starting process is needed again; when the free end of the splicing yarn is inserted through the tubular needle or the slotted needle, the splicing yarn extends out of the pointed tip of the tubular needle or the hole of the slotted needle by a length, the splicing yarn is cut off after the completion of the subsequent actions required for splicing, and a length of the splicing yarn is left outside the tubular needle or the slotted needle when it is cut off, the length is 10-30 mm.

3. The starting member for a splicing process of a ring spinning yarn according to claim 2, characterized in that the starting member comprises a guide needle sleeve and an extension and retraction driving member, the guide needle sleeve is a hollow member with open ends outside the tubular needle or the slotted needle, the guide needle sleeve and the tubular needle or the slotted needle have a degree of freedom of relative movement in the direction of the pointed tip of the needle. The telescopic driving component is directly or indirectly mounted between the tubular needle and the needle guard or between the open needle and the needle guard, and drives the relative movement between the tubular needle and the needle guard or between the open needle and the needle guard.

4. The spinning-in component for the ring spinning splicing joint according to claim 3, characterized in that The relative movement between the needle guard and the tubular needle or the open needle has two limit positions, one limit position corresponds to the tip of the tubular needle or the tip of the open needle being able to extend out of the needle guard and pierce or puncture the tube yarn, and the other limit position corresponds to the tip of the tubular needle or the tip of the open needle being completely retracted into the needle guard.

5. The spinning-in component for the ring spinning splicing joint according to claim 3, characterized in that The telescopic driving component is a return spring mounted in the annular space between the tubular needle and the needle guard or between the open needle and the needle guard, and the return spring makes the tip of the tubular needle or the open needle naturally retract into the needle guard.

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