A yarn winding type ring spinning yarn splicing device

Abstract

This invention relates to splicing technology related to yarn breakage or unsuccessful yarn retention in ring spinning, specifically a winding-type ring spinning yarn splicing device. It includes a moving platform, a yarn guiding device, a yarn picking device, a tube pulling device, a yarn lifting hook component, and a spindle braking device. The tube pulling device includes a tube pulling grip component and a tube pulling moving device. The tube pulling grip component is mounted on the moving platform via the tube pulling moving device. The yarn guiding device includes a yarn guiding motion device and a yarn guide opening and yarn holding device mounted on the moving platform via the yarn guiding motion device. The yarn picking device includes a yarn picking moving device and a yarn picking clamping structure mounted on the moving platform via the yarn picking moving device. This winding-type ring spinning automatic splicing device winds the splicing yarn onto the yarn tube to achieve yarn retention and splices using a "hanging roller" method. Applying this invention facilitates reliable splicing when ring spinning yarn breaks or unsuccessful yarn retention occurs.

Description

Technical Field

[0001] This invention relates to splicing technology related to yarn breakage or unsuccessful yarn retention in ring spinning, specifically a winding-type ring spinning yarn splicing device. It includes a moving platform, a yarn guiding device, a yarn picking device, a tube pulling device, a yarn lifting hook component, and a spindle braking device. The tube pulling device includes a tube pulling grip component and a tube pulling moving device. The tube pulling grip component is mounted on the moving platform via the tube pulling moving device. The yarn guiding device includes a yarn guiding motion device and a yarn guide opening and yarn holding device mounted on the moving platform via the yarn guiding motion device. The yarn picking device includes a yarn picking moving device and a yarn picking clamping structure mounted on the moving platform via the yarn picking moving device. This winding-type ring spinning automatic splicing device winds the splicing yarn onto the yarn tube to achieve yarn retention and splices using a "hanging roller" method. Applying this invention facilitates reliable splicing when ring spinning yarn breaks or unsuccessful yarn retention occurs. Background Technology

[0002] In the textile industry, the ring spinning machine is one of the most important pieces of production equipment. When a yarn breaks, the operator typically needs to remove the bobbin from the spindle, locate the yarn end on the bobbin, pass the yarn end through the traveler, insert the bobbin back onto the spindle, and then twist the yarn through the guide hook onto the sliver output from the front roller. In this way, regardless of the number of splices, a bobbin of yarn remains a continuous strand. This splicing process is relatively complex and not easily automated.

[0003] When spinning a new doff after completing one doff of ring spinning, any spindles without a yarn end need to be manually started by the operator. This usually involves placing the yarn end on a traveler, wrapping one end around the bobbin (or possibly more than one turn), and then gently pulling to allow the bobbin to rotate and wind it onto the bobbin. Alternatively, the end of the yarn end can be placed close to or pressed against the surface of the bobbin, allowing the bobbin to rotate and wind the yarn onto the bobbin. Once the yarn end is effectively wound onto the bobbin, the other end must be quickly and firmly held upright and passed through the yarn guide hook. The traveler's rotation adds twist to the yarn end; the other end of the yarn end must not be kept radially in the bobbin, otherwise it will quickly wind onto the bobbin and break. This yarn end-starting operation in ring spinning is common knowledge in the industry and will not be elaborated further. However, this operation is never used for splicing yarn ends after breakage.

[0004] Although automatic splicing devices for ring spinning frames have been developed to complete automatic splicing of ring spinning yarns, and there are also some related patents on automatic splicing of ring spinning at home and abroad, there are still obvious problems in terms of actual feasibility and operation success rate. On the one hand, the success rate of automatic splicing is not high enough, and the splicing time is relatively long. Especially, the success rate of finding the broken end on the bobbin after the yarn breaks is not high enough, resulting in a lower success rate of the automatic splicing technology with the head-finding link. On the other hand, the splicing device has a complex structure and a high price, making it unsuitable for large-scale promotion and application.

[0005] In recent years, the technology of linking spinning and winding and the technologies of automatic tube feeding, tube management, yarn end feeding, and tube feeding supporting automatic winders have gradually matured and been widely promoted and applied. Assuming that a bobbin contains multiple discontinuous segments of yarn, during the winding process in the winding operation, the last spun segment of yarn on the bobbin is first wound onto the cheesed yarn, and then the bobbin is discharged by the winder and transported to the automatic yarn end feeding position by the automatic conveying system of the winder to resume yarn end feeding. After that, it re-enters the winding station to wind the second segment of yarn onto the cheesed yarn, and this process is repeated until all the yarn on the bobbin has been wound. That is to say, the current automatic empty bobbin identification and sorting, bobbin automatic conveying, bobbin automatic yarn end feeding, and bobbin automatic feeding systems supporting automatic winders are capable of automatically processing bobbin yarns spun in segments.

[0006] In view of the above problems and background, the present invention discloses a winding-type ring spinning yarn splicing device for winding the splicing yarn onto the bobbin to achieve splicing, which is beneficial to reducing the complexity of automatic splicing, eliminating operations such as finding the yarn end, and making the work more stable and reliable. It is beneficial to achieve automatic splicing after the ring spinning yarn breaks and can also be used for splicing in the case of unsuccessful yarn end retention after a full package of yarn has been spun. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a winding-type ring spinning yarn splicing device, and its solution is as follows:

[0008] A winding-type ring spinning yarn splicing device includes a moving platform, a tube pulling device, a yarn guiding device, a yarn taking device, a yarn guiding hook lifting component, and a spindle braking device.

[0009] The moving platform is a plate-shaped or frame-shaped component with at least a horizontal movement freedom degree along the length direction of the spinning frame, and it is the installation base component of the ring spinning yarn splicing device, used to carry other parts of the ring spinning yarn splicing device.

[0010] The tube pulling device includes a tube pulling gripping component and a tube pulling moving device. The tube pulling gripping component uses a claw or airbag to grip the top of the yarn tube. The tube pulling gripping component is directly or indirectly mounted on the moving platform through the tube pulling moving device. The tube pulling moving device has at least two spatial degrees of freedom relative to the moving platform: the vertical direction and the horizontal direction perpendicular to the length direction of the spinning machine.

[0011] The yarn guiding device includes a yarn guide opening, a yarn holding device, and a yarn guiding motion device. The yarn guide opening is a ring-shaped component with an opening through which fine yarn can enter and exit. The yarn guide opening is directly or indirectly mounted on the moving platform via the yarn guiding motion device.

[0012] The yarn holding device includes yarn holding components, a yarn holding drive component, and a yarn holding guide component. The yarn holding components are a pair of components with relative contact and separation movements. The yarn holding drive component drives the yarn holding components to perform relative contact and separation movements to hold and release the yarn guide passing between them. The yarn holding guide component guides the movement of the yarn holding components. The yarn holding device is directly or indirectly mounted on a moving platform adjacent to the yarn guide opening via a yarn guiding motion device. The yarn holding device is adjacent to the yarn guide opening, and the yarn guide passes through the yarn holding device and then through the yarn guide opening.

[0013] The yarn guiding motion device drives the yarn guide opening and the yarn holding device to have three degrees of freedom to move relative to the moving platform in three orthogonal directions and one degree of freedom to swing. The three orthogonal motion directions of the yarn guide opening relative to the moving platform are the vertical direction, the horizontal direction parallel to the length direction of the spinning machine, and the horizontal direction perpendicular to the length direction of the spinning machine. The swinging degree of freedom of the yarn guide opening is preferably the swinging around the horizontal axis of the length direction of the spinning machine.

[0014] When the yarn holding device holds the splice yarn and it is broken by the rollers and the slip rollers, the length of the splice yarn left at the yarn holding device is uncertain, which is not conducive to improving the reliability of the splice. In order to control the length of the splice yarn left at the yarn holding device, a yarn cutting device is set between the yarn guide opening of the yarn guiding device and the yarn holding device. The yarn cutting device includes a yarn cutting cutter and a cutting drive device. The cutting drive device drives the cutting cutter to cut the splice yarn. The yarn cutting device is directly or indirectly installed on the moving platform adjacent to the yarn guide opening through the yarn guiding motion device. The yarn guide opening, the yarn cutting device and the yarn holding device are installed adjacent to each other. The splice yarn passes through the yarn holding device and the yarn cutting device in sequence and then passes through the yarn guide opening. The yarn guiding motion device drives the yarn guide opening, the yarn cutting device and the yarn holding device to move relative to the moving platform in the vertical direction, the horizontal direction parallel to the length direction of the spinning machine and the horizontal direction perpendicular to the length direction of the spinning machine.

[0015] The yarn taking device includes a yarn taking clamping structure and a yarn taking moving device. The yarn taking clamping structure is directly or indirectly mounted on a moving platform via the yarn taking moving device. The yarn taking moving device drives the yarn taking clamping structure to have degrees of freedom of movement relative to the moving platform in the vertical direction, the horizontal direction parallel to the length direction of the spinning machine, and the horizontal direction perpendicular to the length direction of the spinning machine. The yarn taking clamping structure has a yarn taking head clamping structure capable of clamping the connecting yarn. After clamping the end of the connecting yarn, the yarn taking head clamping structure winds the subsequent connecting yarn around the outside of the yarn tube. After winding the yarn around the yarn tube, the yarn taking head clamping structure clamps the end of the connecting yarn. Preferably, the yarn taking head clamping structure capable of clamping the connecting yarn uses the opening and closing motion of two parts to clamp the connecting yarn or uses an elastic structure to clamp the connecting yarn. The yarn taking device includes a yarn blowing nozzle, which is installed adjacent to the yarn taking clamping structure. The outlet of the gas blown from the yarn blowing nozzle faces the connecting yarn clamped by the yarn taking head clamping structure.

[0016] The yarn guide hook lifting component is a component installed during the process of inserting the yarn tube after the yarn head has been completed back into the spindle to avoid interference between the yarn guide hook and the yarn tube. The yarn guide hook lifting component is a rod-shaped or plate-shaped component that can extend below the yarn guide hook to lift it. The yarn guide hook lifting component is mounted on the moving platform through a yarn guide hook lifting drive mechanism. The yarn guide hook lifting drive mechanism drives the yarn guide hook component to have at least two orthogonal degrees of freedom of movement relative to the moving platform, namely, the vertical direction and the horizontal direction perpendicular to the length direction of the spinning machine. In order to simplify the drive and guide mechanism, the yarn picking moving device can be used as all or part of the yarn guide hook lifting drive mechanism, and the yarn guide hook lifting component is mounted on the yarn picking device. The yarn guide hook lifting component has the movement degree of freedom of the yarn picking device.

[0017] The braking device includes a pressure brake component and a brake drive device. The pressure brake component is a rod-shaped or plate-shaped component mounted on a moving platform via the brake drive device. The brake drive device drives the pressure brake component to have at least one degree of freedom of movement in the braking direction relative to the moving platform. The braking direction is the direction in which force needs to be applied to the brake handle when braking with the brake. The braking direction depends on the type of brake equipped on the ring spinning machine spindle. If the brake handle is raised to brake, the brake drive device drives the pressure brake component to lift the brake handle from below the brake handle to brake. Conversely, if the brake handle is pressed down to brake, the brake drive device drives the pressure brake component to press the brake handle down above the brake handle to brake. In addition, if the brake handle is pressed towards the inside of the spinning machine to brake, the brake drive device drives the pressure brake component to press the brake handle towards the inside of the spinning machine from the outside of the brake handle to brake.

[0018] The winding ring spinning yarn splicing device includes a second moving platform, which is a plate-shaped or frame structure component movably mounted on the moving platform. The second moving platform has at least one degree of freedom to move up and down in the vertical direction relative to the moving platform. To accurately determine the vertical height of the ring bar relative to the second moving platform and improve the reliability of the splicing operation, the winding ring spinning splicing device includes a ring bar detection device. This device comprises a ring bar gripper, a ring bar gripper guide device, and a ring bar detection sensor. The ring bar gripper is a rod-shaped or plate-shaped component mounted on the second moving platform via the ring bar gripper guide device, located on the side of the second moving platform closer to the spinning machine and extending beyond the platform. The ring bar gripper has vertical freedom of movement relative to the second moving platform along the ring bar gripper guide device. The ring bar detection sensor is mounted on the second moving platform. When the ring bar gripper begins to descend vertically from a position higher than the highest limit of the ring bar, it can rest on the ring bar during the descent. The ring bar supports the ring bar gripper, causing it to follow the ring bar in a step-by-step lifting motion. The ring bar detection sensor detects the vertical relative position between the ring bar gripper and the second moving platform.

[0019] Based on the above mechanisms and devices, the working principle of the winding type ring spinning yarn splicing device is as follows:

[0020] The bobbin or cone of yarn wound with fine yarn is placed on a moving platform. The splicing yarn is unwound from the bobbin or cone and passed through a yarn guide tube. It is guided through the yarn guide tube to the inlet of the yarn holding device of the yarn guide device. The splicing yarn is pulled out from the yarn guide tube and passes through the yarn holding device, the yarn cutting device, and the yarn guide in sequence. The cutting drive device drives the yarn cutting blade to move to the position to cut the splicing yarn. The splicing yarn is cut at the position of the yarn cutting device. If the ring spinning fine yarn splicing device is not equipped with a yarn cutting device, the yarn cutting action is not required. The splicing yarn is held by the yarn holding device and then pulled off. At this time, the yarn holding device holds the end of the unwound splicing yarn. This state is the initial state. The ring spinning fine yarn splicing device starts from this state every time it splices and returns to this state after splicing once. The yarn-taking moving device in the yarn-taking device moves the yarn-taking clamping structure between the yarn guide port support and the yarn guide tube of the yarn holding device, clamping and fixing the splice yarn. The yarn holding drive component drives the yarn holding component to release the splice yarn. If there is a yarn cutting blade, the cutting drive device drives the yarn cutting blade to separate to a position where it does not cut the yarn. The yarn-taking clamping structure pulls the splice yarn out of the yarn guide tube. With the cooperation of the yarn guiding device and the yarn-taking device, the splice yarn passes through (wraps) into the yarn guide port. Then, the yarn guiding motion device drives the yarn guide port to a vertical position to prepare for yarn winding. At this point, the preparation for splice yarn is completed.

[0021] When a yarn breakage occurs during ring spinning or when re-spinning is unsuccessful and a new yarn head needs to be generated, the moving platform is moved to the position corresponding to the broken spindle location and stopped. The tube-pulling device moves the tube-pulling gripper to the upper end of the broken yarn tube on the spinning machine. After the tube-pulling gripper holds the upper end of the yarn tube, the tube-pulling device pulls the yarn tube from the spindle. The tube-pulling device then moves the yarn tube to the winding station. Driven by the yarn-guiding device, the yarn guide performs a spiral cross motion relative to the yarn tube, winding the splice yarn onto the bobbin or yarn tube. After the splice yarn has wound a certain length onto the bobbin or yarn tube, the yarn-removing clamping structure opens, releasing the yarn end from the splice yarn. The released yarn end is then wound onto the subsequent bobbin. The yarn guide is pressed down on the splice to ensure that the yarn end is not thrown out by centrifugal force during spinning, which would affect normal spinning. During the last rotation of the guide around the yarn tube, the yarn end of the splice on the bobbin passes through the clamping position of the yarn-taking clamping structure, which clamps and fixes the yarn end of the splice, thus completing the process of pulling out the broken yarn tube and rewinding the yarn. The splice between the yarn-taking clamping structure and the guide is stretched into a straight segment approximately the same as the diameter of the ring. Under the coordinated movement of the yarn-taking device and the guide device, this... The straight section of the yarn guide is hooked into the traveler, thus completing the traveler hooking process. The yarn guide hook lifting component moves to a height slightly above the top of the yarn tube, inserts itself below the yarn guide hook, and then rises to lift the yarn guide hook. The spindle brake drive device drives the spindle pressure brake component to press the spindle brake handle to brake the spindle. Then, the tube pulling device sends the yarn tube, now with the yarn head formed, back to the spindle position on the spinning frame and inserts it into the spinning frame spindle bar. The tube pulling grip device releases the yarn tube. The yarn guide opening, driven by the yarn guide motion device, winds the yarn guide hook around the yarn guide, and the spindle pressure brake component... When the brake is released, the yarn guide opening of the yarn guide device continues to pull the splice yarn to the position of the roller and the bottom roller, feeding the splice yarn between the front roller and the bottom roller. The yarn holding device of the yarn guide device holds the splice yarn, and the splice yarn is then broken by the roller and the bottom roller. Alternatively, the yarn holding device holds the splice yarn, and the yarn cutting device cuts the splice yarn. The end of the broken splice yarn near the yarn guide opening is pulled away by the roller and the bottom roller for spinning, while the end near the yarn holding device is held by the yarn holding device. The position of the yarn guide opening returns to its initial position.

[0022] The above process completes the entire splicing process and leaves a clampable yarn end for the next splicing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall installation platform structure of an embodiment 1 of the winding ring spinning fine yarn splicing device of the present invention.

[0024] Figure 2 This is a schematic diagram of the splicing mechanism of Embodiment 1 of the yarn splicing device for ring spinning of the present invention.

[0025] Figure 3 This is a schematic diagram of the yarn guiding device of a winding ring spinning fine yarn splicing device according to the present invention.

[0026] Figure 4 This is a schematic diagram of the yarn guide opening, yarn holding device, and yarn cutting device of a winding ring spinning fine yarn splicing device according to the present invention.

[0027] Figure 5 This is a schematic diagram of the yarn taking device of a winding ring spinning fine yarn splicing device according to the present invention.

[0028] Figure 6 This is a schematic diagram of the yarn guide hook component of a winding ring spinning yarn splicing device according to the present invention.

[0029] Figure 7 This is a schematic diagram of the yarn take-up head of a winding ring spinning fine yarn splicing device according to the present invention.

[0030] Figure 8 This is a schematic diagram of the yarn-taking and clamping structure of a winding-type ring spinning yarn splicing device according to the present invention. Figure 1 .

[0031] Figure 9 This is a schematic diagram of the yarn-taking and clamping structure of a winding-type ring spinning yarn splicing device according to the present invention. Figure 2 .

[0032] Figure 10 This is a schematic diagram illustrating the working state of a winding-type ring spinning yarn splicing device according to the present invention. Figure 1 .

[0033] Figure 11 This is a schematic diagram illustrating the working state of a winding-type ring spinning yarn splicing device according to the present invention. Figure 2 .

[0034] Figure 12 This is a schematic diagram illustrating the working state of a winding-type ring spinning yarn splicing device according to the present invention. Figure 3 .

[0035] Figure 13 This is a schematic diagram illustrating the working state of a winding-type ring spinning yarn splicing device according to the present invention. Figure 4 .

[0036] Figure 14 This is a schematic diagram of the braking device of a winding ring spinning fine yarn splicing device according to the present invention.

[0037] Figure 15 This is a schematic diagram of the overall structure of Embodiment 1 of the winding ring spinning fine yarn splicing device of the present invention.

[0038] In the diagram: 011. Moving platform; 012. Vertical support; 013. Lifting guide rail; 014. Lifting slider; 015. Lifting counterweight; 016. Chain; 017. Lifting motor; 018. Sprocket; 021. Second moving platform; 022. Second moving platform motion slider; 023. Second moving platform motion guide rail; 024. Second moving platform motion cylinder; 025. Lifting connecting bracket; 031. Steel collar plate gripper; 032. Gripper mounting guide rail; 033. Gripper mounting slider; 034. Steel collar plate gripper synchronous belt; 035. Detection encoder; 041. Brake inlet component; 042. Brake inlet Z-axis slider; 043. Brake inlet Z-axis guide rail; 044. Brake inlet Z-axis drive cylinder; 111. Tube puller. 112. X-axis cylinder; 113. X-axis guide rail for tube pulling; 114. X-axis slider for tube pulling; 121. X-axis platform for tube pulling; 122. Y-axis motor for tube pulling; 123. Synchronous belt for tube pulling; 124. Y-axis slider for tube pulling; 125. Y-axis guide rail for tube pulling; 131. Z-axis slider for tube pulling; 132. Z-axis guide rail for tube pulling; 133. Z-axis cylinder for tube pulling; 134. Z-axis platform for tube pulling; 135. Three-jaw cylinder for tube pulling; 211. Yarn guide tube; 212. Yarn guide port support; 213. Grip and cut cylinder; 214. Grip and cut moving support; 215. Yarn guide for splicing; 216. Yarn guide port; 217. Cutting tool; 218. Yarn holding block; 219. Yarn holding pressure plate; 221. Y-axis motor for yarn guiding; 222. 223. Yarn guide Y-axis lead screw 224. Yarn guide Y-axis lead screw nut 225. Yarn guide Y-axis guide rail 226. Yarn guide Y-axis slider 227. Yarn guide Y-axis platform 231. Yarn guide Z-axis motor 232. Yarn guide Z-axis lead screw 233. Yarn guide Z-axis lead screw nut 234. Yarn guide Z-axis guide rail 235. Yarn guide Z-axis slider 236. Yarn guide Z-axis platform 241. Yarn guide X-axis motor 242. Yarn guide X-axis lead screw 243. Yarn guide X-axis lead screw nut 244. Yarn guide X-axis guide rail 245. Yarn guide X-axis slider 246. Yarn guide X-axis platform 251. Yarn guide opening oscillation motor 252. Yarn guide opening oscillation transmission gear 253. Yarn guide opening oscillation reduction worm gear 311. Yarn take-up Z-axis motor 312. Yarn take-up Z-axis 313. Lead screw; 314. Yarn picking Z-axis lead screw nut; 315. Yarn picking Z-axis guide rail; 316. Yarn picking Z-axis slider; 321. Yarn picking Z-axis platform; 322. Yarn picking X-axis motor; 323. Yarn picking X-axis lead screw; 324. Yarn picking X-axis guide rail; 325. Yarn picking X-axis slider; 326. Yarn picking X-axis platform; 331. Yarn picking Y-axis motor; 332. Yarn picking Y-axis lead screw; 333. Yarn picking Y-axis lead screw nut; 334. Yarn picking Y-axis guide rail; 335. Yarn picking Y-axis slider; 336. Yarn picking Y-axis platform; 341. Yarn clamping cylinder; 342. Yarn clamping outer cavity; 343. Yarn clamping cylinder rod; 344. Yarn clamping chuck; 345. Yarn blowing nozzle; 351. Yarn lifting hook assembly; 41.42. Yarn tube; 43. Yarn guide hook; 44. Ring plate; 45. Ring; 46. Traveling wire; 47. Front roller; 48. Leather roller; 49. Brake. Detailed Implementation

[0039] The following examples, with reference to the figures, illustrate several specific embodiments of the present invention for a winding type ring spinning yarn splicing device. 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.

[0040] Embodiment 1 of the present invention is a winding type ring spinning yarn splicing device (see Figures 1 to 15 ):

[0041] A winding-type ring spinning yarn splicing device includes a moving platform 011, a second moving platform 021, a ring rail height detection device, a tube pulling device, a yarn guiding device, a yarn picking device, a yarn lifting hook component 351, and a spindle braking device.

[0042] The mobile platform 011 is a plate-shaped component, but it may also be a frame structure or a box-shaped component. It is used to support other parts of the ring spinning yarn splicing device. The mobile platform 011 is installed on a guide rail slider structure set along the length of the spinning machine and has the freedom to move along the length of the spinning machine.

[0043] The second moving platform 021 has a double-layer flat plate structure. The double-layer structure is adopted to facilitate the installation of other components. It is not excluded that the second moving platform 021 adopts a frame structure or a single-layer plate structure. The second moving platform 021 has the degree of freedom to move vertically relative to the moving platform 011 and the degree of freedom to move perpendicular to the length direction of the spinning machine. The second moving platform is connected to the moving platform 011 through the lifting connecting bracket 025 and the vertical lifting guide rail 013, and is suspended by the lifting motor 017 fixed at the upper end of the lifting guide rail through the sprocket 018 and the chain 016. The second moving platform 021 is driven by the lifting motor 017 to realize the vertical lifting movement. The second moving platform movement cylinder 024 is installed at the bottom of the second moving platform 021. The cylinder rod is connected to the lifting connecting bracket 025. When the cylinder rod of the second moving platform movement cylinder 024 extends and retracts, it pushes the second moving platform 021 to reciprocate horizontally in a direction perpendicular to the length direction of the spinning machine.

[0044] The ring bar height detection device is installed on the second moving platform 021 to detect the real-time height position of the ring bar 43 on the spinning machine. The detected ring bar position is fed back to the control system, which then controls the lifting motor 017 to drive the second moving platform 021 to move up and down synchronously with the ring bar 43. The ring bar height detection device includes a ring bar gripper 031, a detection encoder 035, a ring bar gripper timing belt 034, a gripper mounting slider 033, and a gripper mounting guide rail 032. The ring bar gripper 031 is installed on the gripper mounting slider 033 and can move linearly along the gripper mounting guide rail 032, which is vertically installed on the second moving platform 021. The ring bar gripper 031 is a rod-shaped component located on the side of the second moving platform 021 closer to the spinning machine and protruding from the second moving platform. Of course, a plate-shaped component can also be used. Besides installing the ring bar height detection device in the wound-type ring spinning splicing device, the ring bar height detection device can also be installed on the spinning machine. The control system of the wound-type ring spinning splicing device obtains the ring bar height information from the ring bar height detection device installed on the spinning machine via communication. Alternatively, a camera can be configured on the control system of the wound-type ring spinning splicing device to capture images of the ring bar and obtain the ring bar height information through image processing. These are all optional alternatives. That is to say, installing the ring bar height detection device on the wound-type ring spinning splicing device is the preferred solution for determining the ring bar height position, but it is not necessary to install the ring bar height detection device on the wound-type ring spinning splicing device.

[0045] The yarn guiding device includes a yarn guiding tube 211, a yarn guiding opening 216, a yarn guiding motion device, a yarn holding device, and a yarn cutting device. The yarn guiding tube 211 is a hollow tube. In this embodiment, the yarn guiding tube 211 serves as the yarn guiding inlet. The yarn guide for the connector passes through the yarn guiding tube 211, and the position of the yarn guide for the connector exiting the yarn guiding tube 211 is restricted by the yarn guiding tube 211. In addition to using the yarn guiding tube 211 to restrict the position of the yarn guide for the connector when entering the yarn guiding device for the connector of ring spinning, any structure that can limit the position of the yarn, such as a yarn guide hook, a circle, or a slit, can also be used as the yarn guiding inlet. The yarn guiding opening 216 is a ring-shaped component with an opening for the yarn to enter and exit, similar to the yarn guiding hook of a ring spinning machine.

[0046] The yarn guiding motion device includes three orthogonal direction yarn guide mouth translation devices and one yarn guide mouth swing device. The three orthogonal direction yarn guide mouth translation devices include a yarn guide Z-axis moving device, a yarn guide X-axis moving device, and a yarn guide Y-axis moving device. The yarn guide Z-axis moving device includes a yarn guide Z-axis guiding component, a yarn guide Z-axis driving component, and a yarn guide Z-axis platform 236. The yarn guide Z-axis guiding component includes a vertical yarn guide Z-axis guide rail 234, along which the yarn guide Z-axis guide rail 234 slides. The configured yarn guide Z-axis slider 235 includes a yarn guide Z-axis motor 231 and a yarn guide Z-axis lead screw 232 connected to the yarn guide Z-axis motor shaft. The yarn guide Z-axis platform 236 is mounted on the yarn guide Z-axis slider 235, and the yarn guide Z-axis lead screw nut 233 is mounted on the yarn guide Z-axis platform 236. The yarn guide Z-axis motor 231 drives the yarn guide Z-axis platform 236 to reciprocate along the vertical direction through the yarn guide Z-axis lead screw 232 and the yarn guide Z-axis lead screw nut 233.

[0047] The yarn guiding X-axis moving device includes a yarn guiding X-axis guide component, a yarn guiding X-axis drive component, and a yarn guiding X-axis platform 246. The yarn guiding X-axis guide component includes a yarn guiding X-axis slider 245 horizontally mounted on the yarn guiding Z-axis platform 236 parallel to the length direction of the spinning machine, and a yarn guiding X-axis guide rail 244 sliding in the slider. The yarn guiding X-axis drive component includes a yarn guiding X-axis motor 241 mounted on the yarn guiding X-axis guide rail 244 and a yarn guiding X-axis screw 242 connected to the shaft of the yarn guiding X-axis motor. The yarn guiding X-axis platform 246 is mounted on the yarn guiding X-axis guide rail 244, and the yarn guiding X-axis screw nut 243 is mounted on the yarn guiding Z-axis platform 236. The yarn guiding X-axis motor 241 drives the yarn guiding X-axis platform 246 to move horizontally and reciprocally along the length direction of the spinning machine through the yarn guiding X-axis screw 242 and the yarn guiding X-axis screw nut 243.

[0048] The yarn guiding Y-axis moving device includes a yarn guiding Y-axis guide component, a yarn guiding Y-axis drive component, and a yarn guiding Y-axis platform 226. The yarn guiding Y-axis guide component includes a yarn guiding Y-axis guide rail 224 horizontally mounted on the yarn guiding X-axis platform 246 in a direction perpendicular to the length direction of the spinning machine, and a yarn guiding Y-axis slider 225 slidably arranged along the yarn guiding Y-axis guide rail 224. The yarn guiding Y-axis drive component includes a yarn guiding Y-axis motor 221 mounted on the yarn guiding X-axis platform 246 and a yarn guiding Y-axis screw 222 connected to the shaft of the yarn guiding Y-axis motor. The yarn guiding Y-axis platform 226 is mounted on the yarn guiding Y-axis slider 225, and a yarn guiding Y-axis screw nut 223 is mounted on the yarn guiding Y-axis platform 226. The yarn guiding Y-axis motor 221 drives the yarn guiding Y-axis platform 226 to reciprocate horizontally in a direction perpendicular to the length direction of the spinning machine through the yarn guiding Y-axis screw 222 and the yarn guiding Y-axis screw nut 223.

[0049] The yarn guide opening swing device includes a yarn guide opening swing guide component, a yarn guide opening swing drive component, and a yarn guide opening support 212. The yarn guide opening 216 is mounted on the yarn guide opening support 212, and the yarn guide opening support 212 is hinged to the yarn guide Y-axis platform 226. The hinge component is the yarn guide opening 216 swing guide component. The yarn guide opening swing drive component is a yarn guide opening swing motor 251 mounted on the yarn guide Y-axis platform 226. The yarn guide opening swing motor drives the yarn guide opening support 212 and the yarn guide opening 216 mounted thereon to swing through the yarn guide opening swing transmission gear 252 and the yarn guide opening swing reduction worm gear 253.

[0050] The yarn holding device includes a yarn holding component, a yarn holding drive component, and a yarn holding guide component. The yarn holding component includes a holding and cutting movable support 214, a yarn holding block 218, and a yarn holding pressure plate 219. The yarn holding drive component is a holding and cutting cylinder 213 mounted on a yarn guide support 212. The yarn holding guide component includes two guide rods, one end of which is fixedly mounted on the holding and cutting movable support 214, and the other end of which slides within the yarn guide support 212. The cylinder rod of the air-cutting cylinder 213 is connected to the holding and cutting moving bracket 214. The yarn holding pressure plate 219 is installed on the holding and cutting moving bracket 214. The yarn holding block 218 is an elastic body. The yarn holding block 218 and the yarn holding pressure plate 219 are aligned and installed on the yarn guide support 212. When the cylinder rod of the holding and cutting cylinder 213 extends, it pushes the holding and cutting moving bracket 214 to drive the yarn holding pressure plate 219 to move and hold the yarn end of the cut joint between them with the yarn holding block 218.

[0051] The yarn cutting device includes a yarn cutting blade 217 and a cutting drive device. The cutting blade 217 and the yarn holding pressure plate 219 are mounted adjacent to the holding and cutting moving support 214. When the cylinder rod of the holding and cutting cylinder 213 (which also serves as the cutting drive device) extends, it pushes the holding and cutting moving support 214 to move the yarn holding pressure plate 219 and the cutting blade 217. The cutting blade 217 and the yarn guide support 212 cut the yarn at the joint. At the same time, the yarn holding pressure plate 219 and the yarn holding block 218 hold the cut end of the yarn at the joint. Since the yarn holding device can be pulled off by the roller and the skin roller after holding the yarn at the joint, the yarn guiding device does not necessarily need to include a yarn cutting device. Having a yarn cutting device is more conducive to accurately controlling the length of the yarn left at the joint than not having a yarn cutting device.

[0052] Both yarn holding devices and yarn cutting devices utilize two relatively moving components to hold or cut the yarn. For example, the yarn holding pressure plate 219 and the cutting blade 219 are installed on one side of the yarn holding block 218, and the yarn holding block is installed on the holding and cutting moving support 214. This can achieve the purpose of holding and cutting. Even swing holding and cross cutting can be used, all of which utilize relative motion to achieve the relevant holding and cutting functions.

[0053] The yarn picking device includes a yarn picking clamping structure and a yarn picking moving device. The yarn picking clamping structure includes a yarn clamping cylinder 341, a yarn clamping outer cavity 342, a yarn clamping cylinder rod 343, and a yarn clamping chuck 344. When the cylinder rod of the yarn clamping cylinder rod 343 extends, the yarn clamping outer cavity 342 separates from the yarn clamping chuck 344 to form a yarn clamping cavity. After the yarn is placed into the yarn clamping cavity, the cylinder rod of the yarn clamping cylinder rod 343 retracts, thereby achieving yarn clamping.

[0054] The yarn-picking clamping structure is not limited to the scheme described in the embodiments. In addition to the clamping structure composed of two relatively opening and closing moving parts, any scheme that can clamp the end of the yarn guide at the connector can be used in the yarn-picking clamping structure. For example, the commonly used V-shaped elastic clamping structure, the swing clamping structure similar to a hook needle, etc., can also be a cantilever rod with a "V" shaped groove structure or a hook-shaped structure at the end. When picking up the yarn, the yarn enters the "V" shaped groove at the end of the cantilever rod, and the yarn end is held by the friction of the inner wall of the "V" shaped groove, so as to realize the function of picking up the yarn.

[0055] The yarn taking moving device includes three orthogonal moving devices: a yarn taking Z-axis moving device, a yarn taking X-axis moving device, and a yarn taking Y-axis moving device. The yarn taking Z-axis moving device moves in a vertical direction, and the yarn taking X-axis moving device moves in a direction parallel to the length direction of the spinning machine. The yarn taking Z-axis moving device includes a yarn taking Z-axis guide component, a yarn taking Z-axis drive component, and a yarn taking Z-axis platform 316. The yarn taking Z-axis guide component includes a vertical yarn taking Z-axis guide rail 314 and a yarn taking Z-axis guide rail 316. The yarn-picking Z-axis slider 315 is slidably configured with a yarn Z-axis guide rail. The yarn-picking Z-axis drive component includes a yarn-picking Z-axis motor 311 and a yarn-picking Z-axis lead screw 312 connected to the shaft of the yarn-picking Z-axis motor. The yarn-picking Z-axis platform 316 is mounted on the yarn-picking Z-axis slider 315. The yarn-picking Z-axis lead screw nut 313 is mounted on the yarn-picking Z-axis platform 316. The yarn-picking Z-axis motor 311 drives the yarn-picking Z-axis platform 316 to reciprocate along the vertical direction through the yarn-picking Z-axis lead screw 312 and the yarn-picking Z-axis lead screw nut 313.

[0056] The yarn-taking X-axis moving device includes a yarn-taking X-axis guide component, a yarn-taking X-axis drive component, and a yarn-taking X-axis platform 326. The yarn-taking X-axis guide component includes a yarn-taking X-axis guide rail 324 horizontally mounted parallel to the length direction of the spinning machine on the yarn-taking Z-axis platform 316, and a yarn-taking X-axis slider 325 cooperating with the guide rail. The yarn-taking X-axis drive component includes a yarn-taking X-axis motor 321 mounted on the yarn-taking X-axis guide rail 324 and a yarn-taking X-axis lead screw 322 connected to the shaft of the yarn-taking X-axis motor. The yarn-taking X-axis guide rail 324 is mounted on the yarn-taking Z-axis platform 316, and the yarn-taking X-axis lead screw nut 323 is mounted on the yarn-taking X-axis platform 326. The yarn-taking X-axis motor 321 drives the yarn-taking X-axis platform 326 to move horizontally reciprocally along the length direction of the spinning machine through the yarn-taking Z-axis lead screw 322 and the yarn-taking X-axis lead screw nut 323.

[0057] The yarn-taking Y-axis moving device includes a yarn-taking Y-axis guide component, a yarn-taking Y-axis drive component, and a yarn-taking Y-axis platform 336. The yarn-taking Y-axis guide component includes a yarn-taking Y-axis guide rail 334 horizontally mounted on the yarn-taking X-axis platform 326 perpendicular to the length direction of the spinning machine, and a yarn-taking Y-axis slider 335 slidably configured along the yarn-taking Y-axis guide rail. The yarn-taking Y-axis drive component includes a yarn-taking Y-axis motor 331 mounted on the yarn-taking X-axis platform 326 and a yarn-taking Y-axis lead screw 332 connected to the shaft of the yarn-taking Y-axis motor. The yarn-taking Y-axis platform 336 is mounted on the yarn-taking Y-axis slider 335, and the yarn-taking Y-axis lead screw nut 333 is mounted on the yarn-taking Y-axis platform 336. The yarn-taking Y-axis motor 331 drives the yarn-taking Y-axis platform 336 to reciprocate horizontally along the length direction perpendicular to the spinning machine through the yarn-taking Y-axis lead screw 332 and the yarn-taking Y-axis lead screw nut 333.

[0058] The yarn guide hook lifting component 351 is a component installed to lift the yarn guide hook 42 and the yarn tube 41 during the process of inserting the re-grown yarn tube 41 back into the spindle, in order to prevent interference between the yarn guide hook 42 and the yarn tube 41. The yarn guide hook lifting component is installed and fixed on the yarn picking Y-axis platform 336. Figure 5 , Figure 6 As shown, it is worth noting that in this embodiment, the yarn lifting hook component is installed on the yarn picking Y-axis platform 336. During the yarn lifting hook process, the three spatial movement degrees of freedom of the yarn picking device are reused. Of course, the yarn lifting hook component can also be installed on the moving platform or the second moving platform, in which case an independent yarn lifting hook motion mechanism is needed to complete the yarn lifting hook work.

[0059] The tube-pulling device includes a three-jaw cylinder 135 for gripping the yarn tube and a tube-pulling moving device. The tube-pulling moving device includes moving devices in three orthogonal directions: an X-axis moving device, a Y-axis moving device, and a Z-axis moving device. The X-axis moving device moves in a direction parallel to the length of the spinning frame, and the Z-axis moving device moves in a vertical direction. The X-axis moving device includes an X-axis guide component, an X-axis drive component, and an X-axis platform 114. The X-axis guide component includes a horizontal X-axis guide rail 112 parallel to the length of the spinning frame and... The X-axis slider 113 of the bobbin pulling device is fitted with a guide rail. The X-axis guide rail 112 of the bobbin pulling device is installed at the top of the yarn guiding Z-axis guide rail 234 and the yarn picking Z-axis guide rail 314. The X-axis pulling device is a bobbin pulling cylinder 111 installed parallel to the X-axis guide rail 112. The X-axis pulling cylinder 111 drives the X-axis pulling platform 114 to move horizontally and reciprocally along the length of the spinning machine. The Y-axis pulling device includes a Y-axis pulling guide component, a Y-axis pulling drive component, and a Y-axis pulling platform 125. The Y-axis pulling guide component includes a Y-axis slider that is horizontally installed on the X-axis pulling platform 114 in a direction perpendicular to the length of the spinning machine. Block 123, a Y-axis guide rail 124 for tube pulling that slides along the Y-axis slider, and a Y-axis pulling drive component including a Y-axis pulling motor 121 mounted on a Y-axis pulling platform 125 and a Y-axis pulling synchronous belt 122 connected to the shaft of the Y-axis pulling motor 121 via a synchronous pulley. The Y-axis pulling platform 125 is mounted on the Y-axis guide rail 124, and the Y-axis pulling motor 121 drives the Y-axis pulling platform 125 to reciprocate horizontally along a direction perpendicular to the length of the spinning machine via the Y-axis pulling synchronous belt 122. The Z-axis pulling device includes a Z-axis pulling guide component, a Z-axis pulling drive component, and a Z-axis pulling platform 134. The tube removal Z-axis guide component includes a tube removal Z-axis slider 131 mounted vertically on a tube removal Y-axis platform 125, a tube removal Z-axis guide rail 132 slidably configured along the tube removal Z-axis slider 131, a tube removal Z-axis drive component being a tube removal Z-axis cylinder 133 mounted parallel to the tube removal Z-axis guide rail 132, a tube removal Z-axis platform 134 mounted on the tube removal Z-axis guide rail 132, and a tube removal Z-axis cylinder 133 pushing the tube removal Z-axis platform 134 to reciprocate in the vertical direction by extending and retracting the cylinder rod. A tube removal three-jaw cylinder 135 is mounted on the tube removal Z-axis platform 134 and moves together with the tube removal Z-axis platform 134 in the vertical direction.

[0060] like Figure 1 , Figure 14As shown, the brake device includes a brake press component 041 and a brake press Z-axis moving device. The brake press component 041 has a "Z"-shaped structure, although other structural forms may be used to meet the brake requirements. The lower end is connected to the brake press Z-axis slider 042 and the brake press Z-axis driving cylinder 044 in the brake press Z-axis moving device, and the upper end extends towards the spinning machine. The brake press Z-axis moving device (as a brake drive device) includes a brake press Z-axis guide component and a brake press Z-axis drive component. The brake press Z-axis guide component includes a brake press Z-axis guide rail 043 mounted vertically on the moving platform and a brake press Z-axis slider 042 slidably arranged along the brake press Z-axis guide rail 043. The brake press Z-axis drive component is a brake press Z-axis driving cylinder 044 mounted on the moving platform, which pushes the brake press component 041 to reciprocate in the vertical direction by extending and retracting the cylinder rod.

[0061] Based on the above mechanisms and devices, the working process of the aforementioned winding type ring spinning yarn splicing device is as follows:

[0062] After the yarn guide 215 is unwound from the bobbin or cone, it passes through the yarn guide tube 211. The end of the yarn guide 215 exiting the yarn guide tube 211 is held by the yarn holding device, such as... Figure 7 As shown, the yarn-taking moving device in the yarn-taking device moves the yarn-taking clamping structure between the yarn guide port support 212 and the yarn guide tube 211 of the yarn holding device to clamp and fix the joint yarn guide 215, as shown. Figures 7-9 As shown, the yarn-taking clamping structure pulls the yarn guide 215 out of the yarn guide tube 211. With the cooperation of the yarn guide device and the yarn-taking device, the yarn guide 215 is hooked into the yarn guide opening 216. In this embodiment, the yarn guide opening 216 is a spiral curve shape, similar to the yarn guide hook of the ring spinning machine. Then, the yarn guide opening swing motor 251 drives the yarn guide opening 216 to the vertical state to prepare for yarn winding.

[0063] When a ring-spun yarn spindle breaks or fails to retain a yarn head and needs to be regenerated, the splicing device moves along the length of the spinning machine to the broken spindle position. The second moving platform 021 is driven by the lifting motor 017 to rise to its highest position in the vertical direction. The cylinder rod of the second moving platform movement cylinder 024 extends and pushes the second moving platform 021 to move horizontally to the predetermined tube-pulling position closest to the spinning machine. Then, the tube-pulling moving device moves the tube-pulling three-jaw cylinder 135 to the upper end position of the broken yarn tube on the spinning machine. The moving jaws of the tube-pulling three-jaw cylinder 135 close to hold the upper end of the yarn tube 41, and then the tube-pulling Z-axis moving device vertically pulls the yarn tube 41 out of the spindle. Figure 2 The three-degree-of-freedom tube-pulling device shown moves the yarn tube 41 to the winding position, as follows: Figures 10-12As shown, the yarn guide 216, driven by the yarn guide translation device, performs a cross-spiral motion relative to the yarn tube 41 to wind the connector yarn 215 onto the yarn tube or yarn tube. After the connector yarn 215 has been wound onto the yarn tube or yarn tube for a certain length, the yarn-removing clamping structure opens to release the yarn end of the connector yarn 215. The released yarn end will stay close to the yarn tube and will be pressed down by the connector yarn 215 subsequently wound onto the yarn tube. When the yarn guide 216 makes the last circle around the yarn tube 41, the yarn end of the connector yarn 215 wound onto the yarn tube passes through the clamping position of the yarn-removing clamping structure, and the yarn end of the connector yarn 215 is clamped and fixed by the yarn-removing clamping structure. This completes the process of pulling out the broken yarn tube and winding the yarn to start a new yarn.

[0064] Driven by the lifting motor 017, the second moving platform 021 descends vertically from its highest position. During the descent of the second moving platform 021 and its supporting joint mechanism, the ring bar gripper 031 in the ring bar height detection device contacts and rests on the ring bar 43 on the spinning machine, following the ring bar 43 in a step-by-step up-and-down motion. Since the detection encoder 035 is fixedly installed on the second moving platform 021, the movement of the ring bar gripper 031 relative to the second moving platform 021 drives the detection encoder 035 to rotate via the ring bar gripper synchronous belt 034, thereby collecting the real-time height position information of the ring bar 43 and feeding it back to the control system for further control. The lifting motor 017 drives the second moving platform 021 to move up and down synchronously with the ring plate 43. At this time, the second moving platform 021 and the splicing mechanism it carries are relatively stationary with the ring 44 and the traveler 45 on the spinning machine. Then, the splice yarn 215 between the yarn taking clamping structure and the yarn guide 216 is stretched into a straight segment with a diameter of approximately the same as that of the ring 44. Under the coordinated movement of the yarn taking device and the yarn guiding device, this straight segment of the splice yarn 215 is hooked into the traveler 45. After the splice yarn 215 is hooked into the traveler 45, the yarn taking clamping structure releases the yarn tail of the splice yarn 215, thus completing the work of hooking the traveler.

[0065] After the traveler is attached, the second moving platform 021 is driven by the lifting motor 017 to rise and detach from the ring rail 43 (Note: In the existing ring spinning machine structure, the ring rail 43, ring 44, and traveler 45 move synchronously up and down, while other components such as the yarn tube 41, guide hook 42, front roller 46, leather roller 47, and brake 48 do not move synchronously with the ring rail 43). Figure 6The yarn taking device moves to send the yarn guide hook component to a position below the yarn guide hook 42. The yarn taking moving device drives the yarn taking device to move simultaneously in the positive Z-axis direction (vertically upward) and the positive Y-axis direction (pointing towards the spinning machine) to lift the yarn guide hook 42. After the yarn guide hook 42 is lifted, the cylinder rod of the pressure brake spindle in the braking device extends to push the pressure brake spindle component 041 to move in the vertical direction. The pressure brake spindle component 041 pushes the brake spindle 48 in the positive Z-axis direction to stop the spindle. Then, the tube pulling device sends the yarn tube 41, which has been generated, back to the position of the spindle on the spinning machine and inserts it into the spinning machine spindle. The tube pulling three-jaw cylinder 135 opens to release the yarn tube 41. At this point, the above process is completed. The yarn guide 215 is hooked into the steel wire ring and one end is stably wound with the yarn tube 41.

[0066] like Figure 13 As shown, the other end of the yarn guide 215 is pulled to the position of the yarn guide hook 42 by the yarn guide port 216 of the yarn guide device. Under the coordinated movement of the yarn guide Y-axis moving device, the yarn guide Z-axis moving device, and the yarn guide X-axis moving device, the yarn guide 215 is wound into the yarn guide hook 42. Then, the yarn guide 215 is pulled to the position of the front roller 46 by the yarn guide device. The pressure brake component 041 releases the brake 48, causing the yarn tube 41 to rotate again. At the same time as the leather roller 47 rotates, the yarn guide 215 is fed into the front roller 46 and the leather roller 47. Between rollers 47, the yarn holding device and the yarn cutting device cut the joint yarn 215 and re-hold the new yarn. The yarn located on the side of the yarn guide opening 216 of the yarn holding device is pulled away by the front roller 46 and the slip roller 47. The cut joint yarn 215 is held by the yarn holding device. Alternatively, the yarn holding device holds and presses the joint yarn 215, and the joint yarn 215 held by the yarn holding device is pulled off under the traction of the front roller 46 and the slip roller 47. This method does not require a yarn cutting device.

[0067] The above process completes the entire splicing process of this embodiment and preserves the yarn end of the splice guide 215 that can be clamped for the next splicing.

[0068] In this embodiment, the steel collar detection device uses an encoder to detect the positional relationship between the steel collar gripper 031 and the second moving platform 021. It is not excluded that an infrared distance sensor, laser distance sensor, rope sensor, etc. can be used instead of an encoder to detect the positional relationship between the steel collar gripper 031 and the second moving platform 021.

[0069] Embodiment 2 of the present invention: a yarn-winding ring spinning yarn splicing device.

[0070] The difference between this embodiment and Embodiment 1 is that:

[0071] First, to simplify the mechanical structure, this embodiment simplifies Embodiment 1 by removing the moving platform 011 from Embodiment 1 and directly mounting the second moving platform 021 on the guide rail slider structure set along the length of the spinning machine. This allows the second moving platform 021 to function as a moving platform, enabling it to move along the length of the spinning machine and carry the splicing device to different spindle positions. The Y-axis and Z-axis movements of the tube pulling device, the yarn guiding motion device, and the yarn taking device are no longer superimposed on the Y-axis and Z-axis movements of the second moving platform relative to the moving platform in Embodiment 1. All movements during the splicing process are independently completed by the movements of the tube pulling device, the yarn guiding motion device, and the yarn taking device in their respective axial directions.

[0072] Second, the tube pulling device uses an airbag instead of a three-jaw cylinder 135 to hold the yarn tube.

[0073] Third, in order to simplify the mechanical structure, the ring bar height detection device in Example 1 is removed, and the control system of the winding ring spinning yarn splicing device uses visual detection to determine the height of the ring bar.

[0074] Fourth, in order to prevent the braking device from interfering with the collective doffing device during doffing, the moving platform is given a degree of freedom of movement perpendicular to the length of the spinning machine. Before the collective doffing action, the moving platform moves away from the spinning machine so that the braking device does not interfere with the collective doffing components during the doffing process.

[0075] Fifth, the yarn taking device includes a yarn blowing nozzle 345, which is installed adjacent to the yarn taking clamping structure. The outlet of the yarn blowing nozzle 345 faces the connector yarn held by the yarn taking clamping structure. On the one hand, during the process of winding the connector yarn into the yarn tube, after the yarn taking clamping structure releases the connector yarn, the yarn blowing nozzle 345 blows air to make the connector yarn swing downward, which makes it easier for the subsequently wound connector yarn to better press the end of the connector yarn, preventing the end of the connector yarn from swinging during the spinning process and affecting normal spinning. On the other hand, the blowing air from the yarn blowing nozzle 345 helps to clean the yarn taking clamping structure and prevent fiber residue.

[0076] In addition to the aforementioned simplified scheme, the degree of freedom of the second moving platform to move in the horizontal direction perpendicular to the length of the spinning machine can be removed from Embodiment 1, or the degree of freedom of the second moving platform to move in the horizontal direction perpendicular to the length of the spinning machine can be transferred to the moving platform, so that the moving platform has the degree of freedom to move in the horizontal direction perpendicular to the length of the spinning machine.

[0077] In all embodiments, the driving device can be replaced with common components and mechanisms with the same function. For example, cylinder-driven movement can be replaced with linear motors, rotary motors with lead screws, motors with cam push rods, electromagnets, etc.; guidance can be achieved using optical axes, sliders, or linear guides; and movement in three orthogonal directions can be replaced by joint series or parallel structures. These are all common knowledge in the art and will not be elaborated further. 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 yarn splicing device for ring spinning, characterized in that, It includes a moving platform, a tube pulling device, a yarn guiding device, a yarn picking device, a yarn lifting hook component, and a braking device. The mobile platform is a plate-shaped or frame-shaped component with a degree of freedom to move horizontally along the length of the spinning machine. The bobbin pulling device includes a bobbin pulling gripping component and a bobbin pulling moving device. The bobbin pulling gripping component is a component that holds the top end of the yarn bobbin. The bobbin pulling gripping component is directly or indirectly mounted on a moving platform via the bobbin pulling moving device. The bobbin pulling moving device drives the bobbin pulling gripping component to have at least two degrees of spatial freedom of movement relative to the moving platform: a vertical direction and a horizontal direction perpendicular to the length direction of the spinning machine. The yarn guiding device includes a yarn guide opening, a yarn holding device, and a yarn guiding motion device. The yarn guide opening is an annular component with an opening through which fine yarn can enter and exit. The yarn holding device includes a yarn holding component, a yarn holding drive component, and a yarn holding guide component. The yarn holding component is a pair of components with relative contact and separation movements. The yarn holding drive component drives the yarn holding component to perform relative contact and separation movements. The yarn holding guide component guides the movement of the yarn holding component. The yarn guide opening and the yarn holding device are directly or indirectly mounted on the moving platform through the yarn guiding motion device. The yarn holding device is adjacent to the yarn guide opening. The yarn guiding motion device drives the yarn guide opening and the yarn holding device to have three degrees of freedom of movement relative to the moving platform in three orthogonal directions and one degree of freedom of swinging. The yarn taking device includes a yarn taking clamping structure and a yarn taking moving device. The yarn taking clamping structure has a yarn taking head clamping structure capable of clamping the joint yarn. The yarn taking clamping structure is directly or indirectly mounted on a moving platform via the yarn taking moving device. The yarn taking moving device drives the yarn taking clamping structure to have three degrees of freedom of movement relative to the moving platform in three orthogonal directions. The yarn taking head clamping structure capable of clamping the joint yarn uses the opening and closing motion of two parts to clamp the joint yarn or uses an elastic structure to clamp the joint yarn. The yarn taking device includes a yarn blowing nozzle, which is installed adjacent to the yarn taking clamping structure. The outlet of the gas blown from the yarn blowing nozzle faces the joint yarn clamped by the yarn taking head clamping structure. The yarn guide hook lifting component is a rod-shaped or plate-shaped component that can extend below the yarn guide hook to lift it up. The yarn guide hook lifting component is mounted on the moving platform via a yarn guide hook lifting drive mechanism. The yarn guide hook lifting drive mechanism drives the yarn guide hook component to have at least two orthogonal degrees of freedom of movement relative to the moving platform: the vertical direction and the horizontal direction perpendicular to the length direction of the spinning machine. The brake device includes a brake press component and a brake drive device. The brake press component is a rod-shaped or plate-shaped component mounted on a moving platform via the brake drive device. The brake drive device drives the brake press component to have at least one degree of freedom of movement in the brake direction relative to the moving platform. The brake direction is the direction in which force needs to be applied to the brake handle when braking with the brake.

2. The yarn splicing device for ring spinning according to claim 1, characterized in that, The three orthogonal directions of freedom of movement are the vertical direction, the horizontal direction parallel to the length direction of the spinning machine, and the horizontal direction perpendicular to the length direction of the spinning machine. The oscillation degree of freedom of the yarn guiding motion device is the oscillation around the horizontal axis of the length direction of the spinning machine.

3. The yarn splicing device for ring spinning according to claim 1, characterized in that, The tube-pulling gripping component uses a claw or airbag to grip the top of the yarn tube.

4. The yarn splicing device for ring spinning according to claim 1, characterized in that, A yarn cutting device is provided between the yarn guide opening of the yarn guiding device and the yarn holding device. The yarn cutting device includes a yarn cutting blade and a cutting drive device. The yarn guide opening, the yarn cutting device and the yarn holding device are installed adjacent to each other.

5. The winding-type ring spinning yarn splicing device according to claim 1, characterized in that, The yarn lifting hook component is installed on the yarn picking moving device.

6. The yarn splicing device for ring spinning according to claim 1, characterized in that, The winding ring spinning yarn splicing device includes a second moving platform, which is a plate-shaped or frame structure component movably mounted on the moving platform. The second moving platform has at least one degree of freedom to move up and down in the vertical direction relative to the moving platform.

7. The yarn splicing device for ring spinning according to claim 6, characterized in that, The second moving platform has a horizontal degree of freedom relative to the moving platform, which is perpendicular to the length direction of the spinning machine.

8. The yarn splicing device for ring spinning according to claim 1, characterized in that, The ring spinning splicing device includes a ring plate detection device, which comprises a ring plate gripper, a ring plate gripper guide device, and a ring plate detection sensor. The ring plate gripper is a rod-shaped or plate-shaped component that is mounted on the second moving platform via the ring plate gripper guide device, located on the side of the second moving platform closer to the spinning machine, and protruding from the second moving platform. The ring plate gripper has vertical freedom of movement relative to the second moving platform along the ring plate gripper guide device. The ring plate detection sensor is mounted on the second moving platform. When the ring plate gripper begins to descend vertically from a position higher than the highest limit of the ring plate, the ring plate gripper rests on the ring plate during the descent. The ring plate supports the ring plate gripper, causing it to follow the ring plate in a step-by-step lifting motion. The ring plate detection sensor detects the relative position of the ring plate gripper and the second moving platform in the vertical direction.

Images