Ring spinning yarn joint device

Abstract

The present invention relates to a technology related to joints in a spinning process of a roving machine, and specifically to a ring spinning roving jointing device, the ring spinning roving jointing device comprising a first movable platform, a yarn discharging device, a yarn winding device, a yarn lifting and guiding hook device, a yarn pressing device and a spindle brake device, the ring spinning roving jointing device winds one end of an elastic jointing yarn around the outside of a hollow structure winding yarn retaining frame to form a polygonal or circular yarn loop, after the jointing yarn passes through a steel wire ring, the yarn loop is sleeved on the outside of a tube yarn by means of a winding yarn retaining frame, and then the jointing yarn is passed through a yarn guide hook and then "wrapped around a leather roller" for jointing. Compared with the prior art, the ring spinning roving jointing device of the present invention winds the jointing yarn around the winding yarn retaining frame in advance before the jointing, which is beneficial to shortening the jointing time, and due to the use of an elastic jointing yarn joint, the yarn loop elastically shrinks and is wrapped around the tube yarn, which is convenient for realizing jointing automation, and can also be used for growing a head when the head retention is unsuccessful.

Description

Technical Field

[0001] The present invention relates to a technology related to joints in a spinning process of a roving machine, and specifically to a ring spinning roving jointing device, the ring spinning roving jointing device comprising a first movable platform, a yarn discharging device, a yarn winding device, a yarn lifting and guiding hook device, a yarn pressing device and a spindle brake device, the ring spinning roving jointing device winds one end of an elastic jointing yarn around the outside of a hollow structure winding yarn retaining frame to form a polygonal or circular yarn loop, after the jointing yarn passes through a steel wire ring, the yarn loop is sleeved on the outside of a tube yarn by means of a winding yarn retaining frame, and then the jointing yarn is passed through a yarn guide hook and then "wrapped around a leather roller" for jointing. Compared with the prior art, the ring spinning roving jointing device of the present invention winds the jointing yarn around the winding yarn retaining frame in advance before the jointing, which is beneficial to shortening the jointing time, and due to the use of an elastic jointing yarn joint, the yarn loop elastically shrinks and is wrapped around the tube yarn, which is convenient for realizing jointing automation, and can also be used for growing a head when the head retention is unsuccessful. Background Art

[0002] In the textile industry, ring spinning frames are one of the most important production equipment. When the spinning frame breaks yarn, the operator is generally required to pull the bobbin yarn off the spindle, find the yarn head on the bobbin yarn, pass the yarn head through the wire ring, insert the bobbin yarn onto the spindle, and pass the yarn through the yarn guide hook and twist it to the whisker output by the front roller. In this way, no matter how many joints there are in a bobbin yarn, it is a continuous yarn. This jointing process is relatively complicated, especially the twisted joint is difficult to automate the jointing process.

[0003] Since the 1970s, the automatic jointing technology of ring spinning has begun to appear, but the technology at that time was not perfect and it was difficult to promote and utilize in factory production. In the 1970s and 1980s, there were the Swiss Hespan automatic jointing device, the German Qingze FIL-A-MAT automatic jointing device, and the Italian Came Filasol automatic jointing device. Among them, Qingze's FIL-A-MAT automatic jointing device is developed based on the Qingze 320 spinning frame. This jointing device is equipped with a U-shaped track, which surrounds the outer ring of the spinning machine. The jointing device automatically moves forward on the track. When the spindle is found to be broken, the jointing device will stop in front of the corresponding spindle, fixed on the steel collar plate, and extend the bracket for jointing operation. First, find the broken end on the bobbin. The steel ring is fixed in a certain position by a positioning system. The yarn is guided through each position by a swing rod, and finally the yarn is introduced into the output roller to complete the joint. After the joint is completed, the photoelectric detection device will again determine whether the joint is successful. The Filasol automatic jointing device can automatically check the joint, stop the relevant spindles, find the broken ends from the bobbin, pass the wire ring and the yarn guide hook, and complete the joint in front of the jaws of the front roller. The Hispan type automatic jointing device first brakes the spindle, then pulls out the bobbin, holds the yarn head after finding it, reinserts the bobbin, passes the wire ring, the balloon ring, and the yarn guide hook. In 2019, the Swiss RIETER company launched the ROBOspin automatic jointing robot for the G38 ring spinning machine. The robot arm first removes the broken ends from the bobbin, then passes the wire ring and the yarn guide hook in turn, and finally introduces the yarn into the jaws of the front roller to complete the joint. The Spanish Pint Company and the Indian Longway Company have both launched broken end jointing equipment.

[0004] Although an automatic jointing device for ring spinning machines has been developed, which can complete the automatic jointing of ring spinning yarn, and there are some related patents for automatic jointing of ring spinning at home and abroad, there are still obvious problems in actual feasibility and operation success rate. On the one hand, the success rate of automatic jointing is not high enough, and the jointing takes a long time, especially the success rate of finding the broken ends on the bobbin after the yarn breaks. As a result, the jointing success rate of automatic jointing technology with a head-finding link is low. On the other hand, the jointing device has a complex structure and is expensive, and is not suitable for large-scale promotion and application. In recent years, the fine winding connection technology and the automatic tube feeding, tube arrangement, spinning and feeding technologies of the automatic winding machine have gradually matured and have been widely promoted and applied. Assuming that a bobbin contains multiple discontinuous sections of fine yarn, during the winding process, the last section of fine yarn on the bobbin is first wound onto the bobbin yarn, and then the bobbin is discharged by the winder and transported to the automatic spinning position by the automatic conveying system of the winder to re-spin, and then enter the doffing station again to re-wind, and wind the second section of fine yarn onto the bobbin. This process is repeated until all the fine yarn on the bobbin is wound. In other words, the automatic identification and sorting of empty bobbins, automatic bobbin conveying, automatic spinning of bobbins and automatic feeding of bobbins of the automatic winding machine are capable of automatically processing the fine yarn bobbins spun in sections.

[0005] In view of the above problems and background, the present invention discloses a ring spinning yarn jointing device. When the ring spinning yarn breaks, the ring spinning yarn jointing device uses a section of elastic joint yarn to joint. First, the middle position of the elastic joint yarn is hung into the wire ring, and one end of the elastic joint yarn is wrapped onto the tube yarn according to the twist direction of the spinning. The other end of the elastic joint yarn is quickly passed upward through the yarn guide hook and then wound between the front roller and the leather roller to achieve the joint and continue spinning. Compared with the existing ring spinning yarn jointing technology, the ring spinning yarn jointing device of the present invention reduces the complexity of the jointing operation, does not need to pull the tube, find the yarn head and other operations, works more stably and reliably, is conducive to the automatic jointing of the ring spinning yarn after the breakage, and can also be used for the yarn spinning when the head is not successfully retained after the yarn is dropped. Summary of the invention

[0006] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a ring spinning yarn jointing device, and its solution is:

[0007] A ring spinning yarn joint device comprises a first moving platform, a yarn discharging device, a yarn winding device, a yarn lifting and guiding hook device, a yarn pressing device and a spindle brake device.

[0008] The first movable platform has at least the freedom to move horizontally along the length direction of the spinning frame, and is the installation base component of the ring spinning yarn joint device, and is used to carry other parts of the ring spinning yarn joint device;

[0009] The yarn outlet device comprises a yarn guide port, a yarn guide port motion device and a yarn holding device; the yarn guide port is an annular component with an opening for yarn to enter and exit, and the yarn guide port is installed on the first movable platform through the yarn guide port motion device; the yarn guide port motion device drives the yarn guide port to have the freedom to move in three orthogonal directions relative to the first movable platform and one swinging freedom or the freedom to move in the vertical direction relative to the yarn holding device. The three orthogonal movement directions of the yarn guide port relative to the first movable platform are the vertical direction, the horizontal direction parallel to the length direction of the spinning frame, and the horizontal direction perpendicular to the length direction of the spinning frame. The dynamic freedom is preferably swinging around the horizontal axis in the length direction of the spinning machine; 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 fitting and separation movements, the yarn holding drive component drives the yarn holding component to perform relative fitting and separation movements to hold and release the joint yarn passing therethrough, the yarn holding guide component guides the movement of the yarn holding component, the yarn holding device is installed on the first movable platform adjacent to the yarn guide port through a yarn guide port movement device, the yarn holding device is adjacent to the yarn guide port, and the joint yarn passes through the yarn holding device and then passes through the yarn guide port.

[0010] When the yarn holding device holds the joint yarn and is pulled off by the roller and the leather roller, the remaining length of the joint yarn at the yarn holding device is uncertain, which is not conducive to improving the reliability of the joint. In order to control the remaining length of the joint yarn at the yarn holding device, a yarn cutting device is arranged between the yarn guide port of the yarn outlet device and the yarn holding device. The yarn cutting device comprises a yarn cutting tool and a cutting drive device. The cutting drive device drives the cutting tool to cut the joint yarn. The yarn cutting device is installed adjacent to the yarn guide port on the first moving platform through a yarn guide port moving device; the yarn guide port, the yarn cutting device and the yarn holding device are installed adjacent to each other, and the joint yarn passes through the yarn holding device and the yarn cutting device in turn and then passes through the yarn guide port. The yarn guide port moving device drives the yarn guide port, the yarn cutting device and the yarn holding device to move relative to the first moving platform in the vertical direction, the horizontal direction parallel to the length direction of the spinning frame, and the horizontal direction perpendicular to the length direction of the spinning frame.

[0011] The yarn winding device includes a yarn winding holding device and a yarn winding moving device. The yarn winding holding device is installed on the first moving platform through the yarn winding moving device. The yarn winding moving device drives the yarn winding holding device to have the freedom to move relative to the first moving platform in the vertical direction, in the horizontal direction parallel to the length direction of the spinning frame, and in the horizontal direction perpendicular to the length direction of the spinning frame.

[0012] The yarn winding holding device comprises a yarn winding holding frame and a yarn picking ring component, the yarn winding holding frame is a hollow component of a claw-type structure or a cylindrical structure that can be sleeved on the outside of the tube yarn, the claw-type structure means that the yarn winding holding frame has at least three rod-shaped components arranged in parallel and connected together at the top, and when viewed in a direction parallel to the rod-shaped components (the length direction of the rod-shaped components), the rod-shaped components are located on a circle equivalent to the diameter of the steel collar, the cylindrical structure means that the yarn winding holding frame is a cylindrical component equivalent to the diameter of the steel collar, the yarn winding holding frame has a yarn head clamping structure that can clamp the joint yarn, the yarn head clamping structure clamps the end of the joint yarn and then winds the subsequent joint yarn to the outside of the yarn winding holding frame, the yarn head clamping structure that can clamp the joint yarn preferably adopts the opening and closing movement of two components to clamp the joint yarn or adopts an elastic structure to clamp the joint yarn;

[0013] The yarn picking ring component is a component with a positioning joint yarn structure installed on the yarn winding holder. The yarn picking ring component with a positioning joint yarn structure means that the yarn picking ring component has a hook-shaped structure or a clamping structure that can hold the yarn, which is used to keep the joint yarn passing through the yarn picking ring component in the positioning joint yarn structure when needed. The yarn picking ring component is preferably located at a position closer to the spinning frame than the joint yarn ring on the yarn winding holder. For a claw-type structure yarn winding holder, from the length direction of the three rod-shaped components, the yarn picking ring component is preferably located at a position closer to the spinning frame on the tangent of the circle where the three rod-shaped components of the claw-type structure yarn winding holder are located; for a cylindrical structure yarn winding holder, from the direction of the cylindrical axis, the yarn picking ring component is preferably located at a position closer to the spinning frame on the tangent of the round structure;

[0014] The yarn pressing device comprises a yarn pressing component and a yarn pressing component moving device, and the yarn pressing component is installed on the first moving platform or on the yarn winding retaining frame through the yarn pressing component moving device. When the yarn pressing component is installed on the yarn winding retaining frame, the yarn pressing component has at least a vertical movement freedom relative to the yarn winding retaining frame, and when the yarn pressing component moves vertically downward to its extreme position, the yarn ring on the yarn winding retaining frame is pushed off the yarn winding retaining frame; when the yarn pressing component is installed on the first moving platform, the yarn pressing component moving device drives the yarn pressing component to have at least a horizontal movement freedom relative to the first moving platform, which is perpendicular to the length direction of the spinning frame. When the yarn pressing component moves in the horizontal direction to its extreme position close to the spinning frame, it can press the joint yarn on the yarn winding retaining frame outside the tube yarn, and the material of the part of the yarn pressing component that contacts the joint yarn is preferably an elastic material, and the friction coefficient between the material of the part of the yarn pressing component that contacts the joint yarn and the joint yarn is greater than the friction coefficient between the joint yarn and the yarn winding retaining frame.

[0015] The spindle brake device includes a spindle brake pressure device component and a spindle brake driving device. The spindle brake pressure device component is a rod-shaped or plate-shaped component installed on the first movable platform through the spindle brake driving device. The spindle brake driving device drives the spindle brake pressure device component to have at least the freedom of movement in the spindle brake direction relative to the first movable platform. The spindle brake direction is the direction in which force needs to be applied to the spindle brake handle when the spindle brake is used. The spindle brake direction depends on the type of spindle brake equipped with the spindle of the ring spinning frame. If lifting the spindle brake handle is a spindle brake, the spindle brake driving device drives the spindle brake pressure device component to lift the spindle brake handle below the spindle brake handle to brake the spindle. Conversely, if pressing the spindle brake handle down is a spindle brake, the spindle brake driving device drives the spindle brake pressure device component to press the spindle brake handle down above the spindle brake handle to brake the spindle. In addition, if pressing the spindle brake handle toward the inside of the spinning frame is a spindle brake, the spindle brake driving device drives the spindle brake pressure device component to press the spindle brake handle toward the inside of the spinning frame from the outside of the spindle brake handle.

[0016] New ring spinning frames are basically equipped with a single spindle break detection system. A magnet is generally installed at the end of the single spindle break detection sensor near the steel collar. When the ring spinning yarn breaks, the magnet on the single spindle break detection sensor can capture the rotating steel ring and make it stay on the side of the steel collar away from the spinning frame. For ring spinning frames that do not have a single spindle break detection sensor installed, a magnet for capturing the steel ring can be installed on the outer side of the steel collar plate near the side of the steel collar away from the spinning frame to capture the steel ring after breakage, so as to facilitate the ring spinning yarn joint device to hang the steel ring.

[0017] In order to enable the ring spinning joint device to be used on a ring spinning frame without a wire ring catching magnet, the ring spinning joint device contains a wire ring finding device, the wire ring finding device includes a wire ring grabber, a wire ring grabber driving device and a wire ring positioning component, the wire ring grabber is installed on the first movable platform through the wire ring grabber driving device, the wire ring grabber driving device drives the wire ring grabber to have the freedom of horizontal movement along the vertical direction and perpendicular to the length direction of the spinning frame relative to the first movable platform, and at the same time has the freedom of rotation around the vertical axis, the wire ring grabber rotation freedom is added to the horizontal movement freedom in the vertical direction and perpendicular to the length direction of the spinning frame;

[0018] The wire ring gripper is a hollow cylindrical component or a rod-shaped component that can be sleeved on the outside of the bobbin. The trajectory formed by the rotation of the wire ring gripper is a cylinder with a diameter equivalent to that of the steel ring. During the rotation of the wire ring gripper, the wire ring is positioned on the side of the steel ring away from the spinning frame by its proximity to the top surface of the steel ring. The material of the cylindrical wire ring gripper in contact with the steel ring is preferably a flexible material, and the rod-shaped wire ring gripper contains a magnetic steel at one end close to the top surface of the wire ring.

[0019] The wire ring positioning component is a wire ring blocking component or a wire ring detection component, and the wire ring blocking component is a rod-shaped component installed on the wire ring gripper driving device, located outside the wire ring gripper and away from the spinning frame on the side in the vertical direction;

[0020] The wire ring detection component is a wire ring detection sensor installed on the wire ring gripper driving device to directly or indirectly detect whether the wire ring moves to the side of the steel collar away from the spinning frame. The wire ring detection sensor detects the moving position of the wire ring during the rotation of the wire ring gripper. When the wire ring moves to the required position, the wire ring gripper stops rotating. When the wire ring gripper is a rod-shaped component, the wire ring detection component can also be a sensor installed on the wire ring gripper driving device to detect the rotation position of the wire ring gripper, and the position of the wire ring is indirectly detected by detecting the rotation position of the wire ring gripper.

[0021] If the yarn lifting hook device is installed on the yarn winding retainer of the yarn winding device, the yarn lifting hook device also needs to be installed on the wire ring driving device on which the wire ring grabber is installed. The yarn lifting hook device is the same as the yarn lifting hook device installed on the yarn winding retainer, and is used to lift the yarn guide hook when the wire ring grabber is put into the tube yarn.

[0022] If the gap between the yarn guide hook and the top end of the tube yarn cannot pass through the yarn winding device or the wire ring finding device, the yarn guide hook needs to be lifted when the yarn winding device or the wire ring finding device is put on the outside of the tube yarn to avoid interference with the yarn winding device or the wire ring finding device. In this case, the ring spinning yarn joint device is equipped with a yarn guide hook lifting device, and the yarn guide hook lifting device includes a yarn guide hook lifting component and a yarn guide hook lifting driving mechanism. The yarn guide hook lifting component is a rod-shaped or plate-shaped component that can extend under the yarn guide hook to lift the yarn guide hook. The yarn guide hook lifting component is installed on the first movable platform through the yarn guide hook lifting driving mechanism. The yarn guide hook lifting driving mechanism drives the yarn guide hook lifting component to have at least two orthogonal degrees of freedom of movement in the vertical direction and the horizontal direction perpendicular to the length direction of the spinning frame relative to the first movable platform.

[0023] In order to simplify the driving guide mechanism, the yarn winding moving device can be used as a part of the yarn lifting hook driving mechanism, and the yarn lifting hook device can be installed on the yarn winding holder of the yarn winding device. In addition to the movement freedom of the yarn lifting hook component, the yarn lifting hook component has the movement freedom in the horizontal direction perpendicular to the length of the spinning frame relative to the yarn winding holder; after the yarn winding holder is withdrawn upward from the joint yarn ring, it moves away from the spinning frame to withdraw from the spinning area where the spindle is located. In order to prevent the yarn lifting hook component from interfering with the tube yarn, the end of the yarn lifting hook component includes a rotating cross bar along the length direction of the spinning frame, and the rotating cross bar has the freedom to swing around the vertical axis. The rotating cross bar is in an extreme position parallel to the length direction of the spinning frame by elastic force, and the end of the rotating cross bar away from the swing axis can swing toward the direction close to the spinning frame. When the rotating cross bar is subjected to a force in the direction close to the spinning frame, it will swing around its rotation axis. When the rotating cross bar is subjected to a force in the direction away from the spinning frame, it will remain in the extreme position parallel to the length direction of the spinning frame.

[0024] In order to more accurately determine the height position of the steel ring plate relative to the first moving platform in the vertical direction, so as to improve the reliability of the piecing operation, a steel ring plate detection device is provided for the ring spinning piecing device. The steel ring plate detection device is a steel ring plate detection sensor for detecting the relative position in the vertical direction between the steel ring plate and the first moving platform or between the follower component moving up and down with the steel ring plate and the first moving platform.

[0025] The following component is a rod-shaped component installed on the first moving platform through a following component driving device, and the following component driving device drives the following component to have at least a vertical degree of freedom of movement relative to the first moving platform, and the collar plate detection sensor is installed on the first moving platform or on the following component.

[0026] The follower component driving device only has the function of lifting the follower component in the vertical direction. The follower component descends by its own weight. When the follower component begins to descend from the highest limit position above the steel collar plate in the vertical direction, the follower component may rest on the steel collar plate during the descent process. The steel collar plate supports the follower component so that it follows the steel collar plate to perform step-up movement. When a single spindle break detection sensor is installed on the steel collar plate, the follower component may rest on the single spindle break detection sensor.

[0027] By means of the above mechanism and device, the working principle of the ring spinning yarn joint device is as follows:

[0028] The tube yarn or cone yarn wound with elastic spun yarn is placed on the first moving platform, the elastic joint yarn is unwound from the tube yarn or cone yarn and passes into a yarn guide tube, which is guided to the entrance position of the yarn holding device of the yarn outlet device through the yarn guide tube. The joint yarn passes through the yarn guide tube to prevent the joint yarn from rubbing against other components during movement and affecting the movement of the joint yarn, and the joint yarn is pulled out of the yarn guide tube, passes through the yarn holding device, the yarn cutting device and the yarn guide port in sequence, and the cutting drive device drives the yarn cutting tool to move to the position of shearing the joint yarn, and the joint yarn is cut at the position of the yarn cutting device. If the ring spinning yarn jointing device is not equipped with a yarn cutting device, no yarn cutting action is required. After the joint yarn is held by the yarn holding device, the joint yarn can be pulled off. At this time, the yarn holding device holds the end of the unwound joint yarn, and this state is the initial state. The ring spinning yarn jointing device starts from this state for each joint, and will also return to this state after one joint is completed.

[0029] The yarn moving device of the yarn winding device drives the yarn winding holder of the yarn winding device to move between the yarn holding device of the yarn outlet device and the yarn guide tube, and utilizes the yarn head clamping structure on the yarn winding holder to hold the joint yarn between the yarn guide tube outlet and the yarn holding device, and the yarn holding driving component drives the yarn holding component to release the joint yarn. If there is a yarn cutting tool, the cutting driving device drives the yarn cutting tool to separate to a position where the yarn is not cut, and the yarn moving device drives the yarn winding holder of the yarn winding device to pull the joint yarn through the yarn cutting device and then pass through (wind into) the yarn guide port, and the yarn winding holder continues to pull the joint yarn After leading out a section, the yarn guide mouth movement device drives the yarn guide mouth to swing to the vertical upward direction or move upward in the plumb direction to pick up the joint yarn, and the yarn outlet device and the yarn winding device cooperate with relative movement to pull the joint yarn out of the yarn guide mouth and wind it on the yarn winding holder. During the yarn winding process, the joint yarn is continuously pulled out from the yarn guide tube. After the yarn winding is completed, the yarn guide mouth drives the joint yarn to pass through the positioning joint yarn structure of the yarn picking ring component outside the yarn winding holder. The positioning joint yarn structure of the yarn picking ring component positions or holds the joint yarn, and the elastic joint yarn between the yarn guide mouth and the yarn picking ring component is used to wear the wire ring in the subsequent jointing process. At this point, the preparation of the joint yarn is completed.

[0030] When the ring spinning process breaks the yarn, the first movable platform is moved to a position corresponding to the broken spindle position and stops. The wire ring is positioned on the side of the ring away from the spinning frame through a single spindle break detection sensor, a magnetic steel installed on the ring plate, or a wire ring finding device.

[0031] The yarn pick-up ring component and the yarn guide mouth follow the movement of the steel collar plate in the vertical direction and stretch the elastic joint yarn therebetween into a straight line segment approximately the same size as the diameter of the steel collar and hang it into the steel ring. The joint yarn is hung into the steel ring by the coordinated movement of the yarn pick-up ring component and the yarn guide mouth to move the joint yarn therebetween from bottom to top along the outer edge of the steel collar away from the spinning frame, and the joint yarn is then hung into the steel ring. If the ring spinning joint device is equipped with a steel collar plate detection device for detecting the height position of the collar plate, the position of the steel collar plate is detected by the steel collar plate detection device when the joint yarn is hung into the steel ring. If the ring spinning joint device is not equipped with a steel collar plate detection device, a sensor for detecting the position of the steel collar plate can be installed on the spinning frame and the position information of the steel collar plate can be transmitted to the ring spinning joint device. It is very easy to detect the position of the steel collar plate on the spinning frame.

[0032] If the spinning frame is equipped with a balloon ring, the yarn pick-up ring component on the winding holder winds the joint yarn between the wire ring and the winding holder into the balloon ring.

[0033] The yarn guide hook lifting component of the yarn guide hook lifting device moves to a height slightly higher than the top end of the yarn tube, is inserted under the yarn guide hook and then rises to lift the yarn guide hook, the yarn winding holder moves until the center of the yarn loop formed by the joint yarn wound thereon is located directly above the yarn tube and then descends, the yarn winding holder is sleeved on the outside of the tube yarn, and the yarn winding holder descends to a height position adjacent to the steel collar.

[0034] The spindle brake driving device drives the spindle brake pressing device component to press the spindle brake device handle to brake the spindle.

[0035] The yarn winding device moves horizontally away from the spinning frame until it does not affect the subsequent jointing and spinning position. When the yarn pressing component is installed on the yarn winding holder, the yarn pressing component pushes the joint yarn loop on the yarn winding holder downward from the top of the loop until the loop is separated from the yarn winding holder and sleeved on the outside of the tube yarn.

[0036] If the spinning frame is equipped with a balloon ring, the yarn guide port on the yarn outlet device pulls the piecing yarn to wind the piecing yarn section between the wire ring and the yarn guide port into the balloon ring.

[0037] The yarn guide port is driven by the yarn guide port motion device to wind the joint yarn into the yarn guide hook. The brake spindle pressing component releases the brake spindle, and the yarn guide port of the yarn discharging device continues to pull the joint yarn to the roller and leather roller position to feed the elastic joint yarn between the front roller and the leather roller. The yarn holding device of the yarn discharging device holds the joint yarn, and the joint yarn is pulled off by the roller and the leather roller, or the yarn holding device holds the joint yarn, and the yarn cutting device cuts off the elastic joint yarn. The end of the broken joint yarn close to the yarn guide port is pulled away by the roller and the leather roller for spinning, and the end close to the yarn holding device is held by the yarn holding device, and the yarn guide port position is reset to its initial position.

[0038] The above process completes the entire splicing process and reserves the yarn head of the clampable splicing yarn for the next splicing. Before the next splicing, the yarn winding holder of the yarn winding device moves to between the yarn holding device of the yarn output device and the yarn guide tube, and the yarn head clamping structure of the yarn winding holder is used to hold the splicing yarn between the yarn guide tube and the holding device, and the splicing yarn is passed through the yarn guide port and then wound onto the yarn winding holder again.

[0039] Winding the joint yarn on the yarn holder in advance before jointing is beneficial to shorten the jointing time and can also joint the spindles without the raw yarn on the yarn tube due to the failure of the initial spinning. Since the elastic joint yarn is used, even if the diameter of the yarn loop wound outside the yarn holder is larger than the diameter of the tube yarn, the yarn loop will be wrapped on the tube yarn due to the elastic contraction of the joint yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the ring spinning yarn jointing device of the present invention.

[0041] Figure 2 It is a schematic diagram of the positional relationship between the overall ring spinning yarn joint device and the spinning frame of the present invention.

[0042] Figure 3 The schematic diagram of the position relationship between the ring spinning yarn joint device and the spinning frame of the present invention is shown in FIG. Figure 2 . .

[0043] Figure 4 It is a schematic diagram of the structure of the first movable platform and the above parts of the ring spinning yarn joint device of the present invention.

[0044] Figure 5 It is a schematic front view of the first movable platform and the structure above of the ring spinning yarn joint device of the present invention.

[0045] Figure 6 It is a schematic diagram of the structure of the yarn discharging device of the ring spinning yarn jointing device of the present invention.

[0046] Figure 7 It is a schematic diagram of the yarn guide port, yarn holding device and yarn cutting device of the ring spinning yarn joint device of the present invention.

[0047] Figure 8 It is a schematic diagram of the structure of the yarn winding device of the ring spinning yarn joint device of the present invention.

[0048] Fig. 9 The present invention is a schematic diagram of the structural relationship between the yarn winding device and the yarn pressing device of the ring spinning yarn joint device.

[0049] Fig.10 The present invention is a schematic structural diagram of a ring spinning yarn joint device for finding a wire ring.

[0050] Fig.11 Schematic diagram of the yarn end removal of the ring spinning yarn jointing device of the present invention Figure 1 .

[0051] Fig.12 Schematic diagram of the yarn end removal of the ring spinning yarn jointing device of the present invention Figure 2 .

[0052] Fig.13 Schematic diagram of the yarn end removal of the ring spinning yarn jointing device of the present invention Figure 3 .

[0053] Fig.14 The present invention is a schematic diagram of the ring spinning yarn jointing device after the yarn ends are taken out.

[0054] Fig.15 It is a schematic diagram of the state of the ring spinning yarn joint device after winding the yarn according to the present invention.

[0055] Fig.16 The working state of the yarn pick-up ring component of the ring spinning yarn joint device of the present invention is shown in FIG. Figure 1 .

[0056] Fig.17 The working state of the yarn pick-up ring component of the ring spinning yarn joint device of the present invention is shown in FIG. Figure 2 .

[0057] Fig.18 It is a schematic diagram of threading a wire ring in a ring spinning yarn jointing device according to the present invention.

[0058] Fig.19 It is a schematic diagram of the yarn guide hook being lifted when the ring spinning yarn jointing device of the present invention begins to be used.

[0059] Fig. 20 It is a schematic diagram of the yarn pressing and spindle braking of the ring spinning yarn jointing device of the present invention.

[0060] Fig.21 It is a bottom view schematic diagram of the yarn pressing state of the ring spinning yarn jointing device of the present invention.

[0061] Fig. 22 It is a schematic diagram of the yarn guide hook of the ring spinning yarn joint device of the present invention.

[0062] Fig.23 It is a schematic diagram of the leather roller of the ring spinning yarn joint device of the present invention.

[0063] Fig.24 It is a schematic diagram of the state in which the ring spinning yarn jointing device of the present invention has been wound around the leather roller.

[0064] Fig.25 It is a partial schematic diagram of yarn holding and cutting of the ring spinning yarn jointing device of the present invention.

[0065] Fig.26 The present invention is a schematic diagram of the working principle of a wire ring finding device for a ring spinning yarn joint device.

[0066] Fig. 27 The present invention is a schematic diagram of the working principle of another yarn pressing component of the ring spinning yarn jointing device.

[0067] Fig.28 The present invention is a schematic diagram of the working principle of another wire ring finding device of the ring spinning yarn joint device.

[0068] In the figure: 111. Yarn pressing component 112. Yarn pressing component limit bracket 1131. Yarn pressing Y-axis cylinder 1132. Yarn pressing Y-axis guide rail 1141. Yarn pressing Z-axis motor 1142. Yarn pressing Z-axis screw rod 1143. Yarn pressing Z-axis screw rod nut 1144. Yarn pressing Z-axis guide rail 1145. Yarn pressing Z-axis slider 1146. Yarn pressing Z-axis platform 1211. Yarn guide tube 1212. Yarn guide port support 1213. Holding and cutting cylinder 1214. Holding and cutting movable support 1215. Elastic joint yarn 1216. Yarn guide port 1217. Cutting tool 1218. Yarn holding block 1219. Yarn holding pressure plate 1221. Yarn guide Y-axis motor 1222. Yarn guide Y-axis screw rod 1223. Yarn guide Y-axis screw rod nut 1224. Yarn guide Y Axis guide rail 1225. Yarn guide Y-axis slider 1226. Yarn guide Y-axis platform 1231. Yarn guide Z-axis motor 1232. Yarn guide Z-axis lead screw 1233. Yarn guide Z-axis lead screw nut 1234. Yarn guide Z-axis guide rail 1235. Yarn guide Z-axis slider 1236. Yarn guide Z-axis platform 1241. Yarn guide X-axis motor 1242. Yarn guide X-axis lead screw 1243. Yarn guide X-axis lead screw nut 1244. Yarn guide X-axis guide rail 1245. Yarn guide X-axis slider 1246. Yarn guide X-axis platform 1251. Yarn guide opening swing motor 1252. Yarn guide opening swing transmission gear 1253. Yarn guide opening swing reduction worm gear 1234. 11. Yarn winding Z axis motor 1312. Yarn winding Z axis lead screw 1313. Yarn winding Z axis lead screw nut 1314. Yarn winding Z axis guide rail 1315. Yarn winding Z axis slider 1316. Yarn winding Z axis platform 1317. Yarn winding Z axis lifting cylinder 1321. Yarn winding X axis motor 1322. Yarn winding X axis lead screw 1323. Yarn winding X axis lead screw nut 1324. Yarn winding X axis guide rail 1325. Yarn winding X axis slider 1326. Yarn winding X axis platform 1331. Yarn winding Y-axis motor 1332. Yarn winding Y-axis lead screw 1333. Yarn winding Y-axis lead screw nut 1334. Yarn winding Y-axis guide rail 1335. Yarn winding Y-axis slider 1336. Yarn winding Y-axis platform 134. Yarn winding holder 1341. Cantilever rod 1351. Yarn loop clamping cylinder 1352. Yarn loop clamping outer cavity 1353. Yarn loop clamping cylinder rod 1354. Yarn loop clamping chuck 1361. Yarn head clamping cylinder 1362. Yarn head clamping outer cavity 1363. Yarn head clamping Cylinder rod 1364. Yarn head clamping chuck 1371. Rotating crossbar 1372. Crossbar rotating machine base 1373. Cylinder guide rail 1374. Yarn lifting hook cylinder machine base 1375. Yarn lifting hook cylinder 1411. Z-axis motor for finding wire ring 1412. Z-axis screw rod for finding wire ring 1413. Z-axis screw rod nut for finding wire ring 1414. Z-axis guide rail for finding wire ring 1415. Z-axis slider for finding wire ring 1416. Z-axis platform for finding wire ring 1421.Y-axis motor for finding wire ring 1422. Y-axis screw rod for finding wire ring 1423. Y-axis screw rod nut for finding wire ring 1424. Y-axis guide rail for finding wire ring 1425. Y-axis slider for finding wire ring 1426. Y-axis platform for finding wire ring 1431. Stepper motor for gripper rotation 1432. Timing belt for gripper rotation transmission 1433. Rotating positioning bearing for gripper 1434. Positioning rod for wire ring 144. Gripper for wire ring 1440. Rod-shaped gripper for wire ring 151. Yarn withdrawal ring component 20. Box base 21. Collar plate detection bracket 211. Gripper lifting cylinder 212. Gripper lifting guide rail 213. Gripper lifting slider 214. Follow-up collar plate gripper 215. Collar plate detection sensor 22. First moving platform 291. Brake spindle component 292. Brake spindle Z-axis slider 293. Brake spindle Z-axis guide rail 294. Brake spindle Z-axis driving cylinder 41. Collar plate 42. Collar 43. Wire ring 44. Bobbin 45. Yarn guide hook 46. Front roller 47. Leather roller 48. Brake spindle. DETAILED DESCRIPTION

[0069] Several specific embodiments of a ring spinning yarn joint device of the present invention are given below in conjunction with the illustrations. These embodiments are merely illustrative of the present invention and do not constitute limitations on the claims of the present invention. Matters not described in the present invention are applicable to the prior art.

[0070] Embodiment 1 of a ring spinning yarn joint device of the present invention (see Figure 1 to Figure 25 ):

[0071] A ring spinning yarn joint device comprises a first moving platform 22, a yarn discharging device, a yarn winding device, a yarn lifting and guiding hook device, a yarn pressing device, and a spindle brake device, such as Figure 1 to Figure 5 shown.

[0072] The first movable platform 22 is a double-layer plate-shaped component, which does not exclude the use of single-layer plate-shaped, frame-shaped or box-shaped components, and is used to carry other parts of the ring spinning joint device. The first movable platform has the freedom to move along the length direction of the spinning frame.

[0073] The yarn discharging device comprises a yarn guide port 1216, a yarn guide port movement device, a yarn holding device and a yarn cutting device. Figure 5 to Figure 17 As shown,

[0074] The yarn guide opening 1216 is a ring-shaped component with an opening through which the yarn can enter and exit, similar to the yarn guide hook of a ring spinning machine;

[0075] The yarn guide port motion device includes three orthogonal direction yarn guide port translation devices and a yarn guide port swing device, and the three orthogonal direction yarn guide port translation devices include a yarn guide Z-axis movement device, a yarn guide X-axis movement device and a yarn guide Y-axis movement device; Figure 5 As shown, the yarn-guiding Z-axis moving device includes a yarn-guiding Z-axis guiding component, a yarn-guiding Z-axis driving component and a yarn-guiding Z-axis platform 1236, the yarn-guiding Z-axis guiding component includes a yarn-guiding Z-axis guide rail 1234 installed on the first moving platform 22 in the vertical direction, and a yarn-guiding Z-axis slider 1235 slidably configured along the yarn-guiding Z-axis guide rail 1234, the yarn-guiding Z-axis driving component includes a yarn-guiding Z-axis motor 1231 installed on the first moving platform 22 and a yarn-guiding Z-axis lead screw 1232 connected to the yarn-guiding Z-axis motor shaft, the yarn-guiding Z-axis platform 1236 is installed on the yarn-guiding Z-axis slider 1235, and the yarn-guiding Z-axis lead screw nut 1233 is installed on the yarn-guiding Z-axis platform 1236, and the yarn-guiding Z-axis motor 1231 drives the yarn-guiding Z-axis platform 1236 to reciprocate along the vertical direction through the yarn-guiding Z-axis lead screw 1232 and the yarn-guiding Z-axis lead screw nut 1233;

[0076] The yarn guide X-axis moving device includes a yarn guide X-axis guide component, a yarn guide X-axis driving component and a yarn guide X-axis platform 1246. The yarn guide X-axis guide component includes a yarn guide X-axis slider 1245 horizontally installed on the yarn guide Z-axis platform 1236 parallel to the length direction of the spinning frame, and a yarn guide X-axis guide rail 1244 sliding in the slider. The yarn guide X-axis driving component includes a yarn guide X-axis motor 1241 installed on the yarn guide X-axis guide rail 1244 and a yarn guide X-axis lead screw 1242 connected to the yarn guide X-axis motor shaft. The yarn guide X-axis platform 1246 is installed on the yarn guide X-axis guide rail 1244, and the yarn guide X-axis lead screw nut 1243 is installed on the yarn guide Z-axis platform 1236. The yarn guide X-axis motor 1241 drives the yarn guide X-axis platform 1246 to reciprocate horizontally along the length direction of the spinning frame through the yarn guide X-axis lead screw 1242 and the yarn guide X-axis lead screw nut 1243.

[0077] like Figure 6As shown, the yarn-guiding Y-axis moving device includes a yarn-guiding Y-axis guiding component, a yarn-guiding Y-axis driving component and a yarn-guiding Y-axis platform 1226, the yarn-guiding Y-axis guiding component includes a yarn-guiding Y-axis guide rail 1224 horizontally installed on a yarn-guiding X-axis platform 1246 in a direction perpendicular to the length direction of the spinning frame, and a yarn-guiding Y-axis slider 1225 slidably configured along the yarn-guiding Y-axis guide rail 1224, the yarn-guiding Y-axis driving component includes a yarn-guiding Y-axis motor 1221 installed on the yarn-guiding X-axis platform 1246 and a yarn-guiding Y-axis lead screw 1222 connected to the yarn-guiding Y-axis motor shaft, the yarn-guiding Y-axis platform 1226 is installed on the yarn-guiding Y-axis slider 1225, and the yarn-guiding Y-axis lead screw nut 1223 is installed on the yarn-guiding Y-axis platform 1226, and the yarn-guiding Y-axis motor 1221 drives the yarn-guiding Y-axis platform 1226 to reciprocate horizontally in a direction perpendicular to the length direction of the spinning frame through the yarn-guiding Y-axis lead screw 1222 and the yarn-guiding Y-axis lead screw nut 1223;

[0078] The yarn guide mouth swinging device includes a yarn guide mouth swinging guide component, a yarn guide mouth swinging driving component and a yarn guide mouth support 1212, the yarn guide mouth 1216 is installed on the yarn guide mouth support 1212, the yarn guide mouth support 1212 is hinged on the yarn guide Y-axis platform 1226, the hinged component is the yarn guide mouth 1216 swinging guide component, the yarn guide mouth swinging driving component is the yarn guide mouth swinging motor 1251 installed on the yarn guide Y-axis platform 1226, the yarn guide mouth swinging motor drives the yarn guide mouth support 1212 and the yarn guide mouth 1216 installed thereon to swing through the yarn guide mouth swinging transmission gear 1252 and the yarn guide mouth swing reduction worm gear 1253.

[0079] like Figure 7 As shown, 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 1214, a yarn holding block 1218 and a yarn holding pressure plate 1219. The yarn holding drive component is a holding and cutting cylinder 1213 installed on the yarn guide port support 1212. The yarn holding guide component includes two guide rods with one end fixedly installed on the holding and cutting movable support 1214 and the other end sliding in the yarn guide port support 1212. The cylinder rod of the cutting cylinder 1213 is connected to the holding and cutting movable bracket 1214, the yarn holding pressure plate 1219 is installed on the holding and cutting movable support 1214, the yarn holding block 1218 is an elastic body, the yarn holding block 1218 is aligned with the yarn holding pressure plate 1219 and is installed on the yarn guide port support 1212, when the cylinder rod of the holding and cutting cylinder 1213 is extended, it pushes the holding and cutting movable support 1214 to drive the yarn holding pressure plate 1219 to move and hold the end of the spliced ​​yarn cut therebetween with the yarn holding block 1218;

[0080] The yarn cutting device includes a yarn cutting tool 1217 and a cutting drive device. The cutting tool 1217 is installed adjacent to the yarn holding pressure plate 1219 on the holding and cutting movable support 1214. When the cylinder rod of the holding and cutting cylinder 1213 (which also serves as a cutting drive device) is extended, it pushes the holding and cutting movable support 1214 to drive the yarn holding pressure plate 1219 and the cutting tool 1217 to move. The cutting tool 1217 and the yarn guide port support 1212 cut the joint yarn. At the same time, the yarn holding pressure plate 1219 and the yarn holding block 1218 hold the cut end of the joint yarn. Since the yarn holding device can be pulled off by the roller and the leather roller after holding the joint yarn, the yarn output device does not necessarily include the yarn cutting device. The yarn cutting device is more conducive to accurately controlling the remaining length of the joint yarn than not including the yarn cutting device.

[0081] Whether it is a yarn holding device or a yarn cutting device, both use two relatively moving parts to hold or cut the yarn. For example, the yarn holding pressure plate 1219 and the cutting tool 1219 are installed on one side of the yarn holding block 1218, and the yarn holding block is installed on the holding and cutting movable support 1214. The purpose of holding and cutting can also be achieved. Even swing holding, cross shearing, etc. can be adopted, all of which use relative motion to achieve the relevant holding and cutting functions.

[0082] The yarn winding device comprises a yarn winding holding device and a yarn winding moving device. Figure 5 , 8 , as shown in Figure 9.

[0083] The yarn holding device comprises a yarn holding frame and a yarn picking ring component. The yarn holding frame 134 comprises three cantilever rods 1341 connected together at the ends, parallel to each other and distributed in a triangle. The three cantilever rods 1341 extend in the same direction and play the role of yarn support. The yarn holding frame contains a yarn head clamping structure, such as Figure 8 , Figures 11 to 17 As shown, the yarn head clamping structure is arranged on the inner side of the area surrounded by the three cantilever rods 1341, adjacent to one cantilever rod 1341, and the yarn head clamping structure comprises a yarn head clamping cylinder 1361, a yarn head clamping outer cavity 1362, a yarn head clamping cylinder rod 1363, and a yarn head clamping chuck 1364; when the cylinder rod of the yarn head clamping cylinder rod 1363 is extended, the yarn head clamping outer cavity 1362 is separated from the yarn head clamping chuck 1364 to form a yarn clamping cavity, and after the yarn is placed in the yarn clamping cavity position, the cylinder rod of the yarn head clamping cylinder rod 1363 is retracted, so that the yarn head can be clamped.

[0084] Although the present embodiment separately sets a yarn head clamping structure on the inner side of the three cantilever rods 1341 on the yarn winding holder 134, it is not excluded that the yarn head clamping structure is directly used to replace the cantilever rods 1341 of the yarn winding holder. For example, removing a cantilever rod 1341 on the yarn winding holder adjacent to the yarn head clamping structure is equivalent to the yarn head clamping structure playing the role of holding and fixing the end of the joint yarn and supporting the yarn loop of the joint yarn. In addition to using a clamping structure composed of two relatively opening and closing moving parts, the yarn head clamping structure can also be a cantilever rod with a "V"-shaped groove structure or a hook-shaped structure at the end of the yarn winding holder 134. When taking the yarn head, the yarn head enters the "V"-shaped groove at the end of the cantilever rod, and the yarn head is held by relying on the friction force of the inner wall of the "V"-shaped groove on the yarn, thereby realizing the function of taking the yarn head. When the yarn loop needs to be detached from the yarn holder 134 so as to wrap around the surface of the yarn tube 44, the yarn loop is pressed by the yarn pressing component, and the yarn holder 134 moves upward at this time. Since the force direction of the yarn changes, it can be detached from the "V"-shaped groove. The yarn end clamping structure is not limited to the scheme described in the embodiment. Any scheme that can clamp the end of the spliced ​​yarn can be used in the yarn end clamping structure, such as the commonly used V-shaped elastic clamping structure, the clamping structure composed of two relatively open and close moving parts, and the swing clamping structure similar to a crochet needle. The yarn picking circle component includes a yarn ring clamping cylinder 1351, a yarn ring clamping outer cavity 1352, a yarn ring clamping cylinder rod 1353, and a yarn ring clamping chuck 1354. The yarn head clamping structure and the yarn picking circle component are parallel to the three cantilever rods of the yarn winding holder 134. The yarn head clamping structure is located on the inner side of the three cantilever rods of the yarn winding holder 134, and the yarn picking circle component is located on the outer side of the three cantilever rods of the yarn winding holder 134. From the length direction of the three parallel cantilever rods on the yarn winding holder, the yarn picking circle component is located on the tangent of the circle where the three cantilever rods are located, which is closer to the spinning frame than the three cantilever rods on the yarn winding holder 134. The yarn picking circle component is closer to the spinning frame to ensure that the yarn winding holder does not interfere with the tube yarn when cooperating with the yarn guide port to hang the wire ring. The yarn picking ring component adopts the same structure as the yarn head clamping structure as the positioning joint yarn structure, but it does not rule out the use of other structures that can clamp the yarn as the positioning joint yarn structure. For example, a controlled hook structure can be set on the outside of the rod-shaped yarn picking ring component as the positioning joint yarn structure. The purpose is to wind the joint yarn around the outside of the yarn winding retaining frame. When the joint yarn passes through the positioning joint yarn structure position of the yarn picking ring component, the joint yarn can be limited by the positioning joint yarn structure to prevent the joint yarn from being uncontrolled during the subsequent threading of the wire ring and the process from threading the wire ring to being put on the outside of the tube yarn. The joint yarn is ensured to move with the yarn picking ring component of the yarn winding device during the process of threading the wire ring and the process from threading the wire ring to being put on the outside of the tube yarn. Therefore, as long as the clamping or limiting structure can meet the function of positioning the joint yarn, it can be used as the positioning joint yarn structure.

[0085] Although the yarn picking ring component in this embodiment is an independent component, it does not rule out the use of the cantilever rod on the yarn winding holder as the yarn picking ring component. For example, a yarn head clamping structure is provided on one of the three cantilever rods on the yarn winding holder that is away from the spinning frame, and a positioning joint yarn structure is provided at the ends of the two cantilever rods close to the spinning frame. After the yarn is wound and the yarn ring is wound, the joint yarn passes around the positioning joint yarn structure at the ends of the two cantilever rods close to the spinning frame, and the joint yarn between the two cantilever rods with the positioning joint yarn structure is used to hang a wire ring. The cantilever rod component of the yarn winding holder can also play the role of the yarn picking ring component.

[0086] In this embodiment, the yarn winding holder 134 uses three parallel rod-shaped components distributed in a triangular shape to form a triangular holder, but the cantilever rod-shaped components on the yarn winding holder that support the joint yarn loop are not limited to a triangular distribution. For example, polygonal, circular, or even elliptical or other irregular distributions can be used, or a cylindrical holder can be used. For the cylindrical structure yarn winding holder, viewed from the direction of the cylindrical axis, the yarn picking loop component is preferably located on the tangent of the cylindrical structure closer to the spinning machine.

[0087] The yarn winding moving device comprises three moving devices in orthogonal directions: a yarn winding Z-axis moving device, a yarn winding X-axis moving device and a yarn winding Y-axis moving device; Figure 5 , 8 As shown in Figure 9, the yarn winding Z-axis moving device includes a yarn winding Z-axis guiding component, a yarn winding Z-axis driving component and a yarn winding Z-axis platform 1316. The yarn winding Z-axis guiding component includes a yarn winding Z-axis guide rail 1314 installed on the first moving platform 22 in the vertical direction, and a yarn winding Z-axis slider 1315 slidingly configured along the yarn winding Z-axis guide rail. The yarn winding Z-axis driving component includes a yarn winding Z-axis lifting cylinder 1317 installed on the first moving platform 22, a yarn winding Z-axis motor 1311 and a yarn winding Z-axis motor shaft connected to the yarn winding Z-axis motor shaft. The yarn winding Z-axis screw rod 1312, the yarn winding Z-axis platform 1316 is on the yarn winding Z-axis slider 1315, the yarn winding Z-axis screw rod nut 1313 is installed on the yarn winding Z-axis platform 1316, and the yarn winding Z-axis motor 1311 drives the yarn winding Z-axis platform 1316 to reciprocate in the vertical direction through the yarn winding Z-axis screw rod 1312 and the yarn winding Z-axis screw rod nut 1313; the yarn winding Z-axis lifting cylinder 1317 pushes the yarn winding Z-axis platform 1316 to reciprocate rapidly in the vertical direction through the extension and retraction of the cylinder rod. In this embodiment, the yarn winding Z-axis driving component adopts two driving modes of the yarn winding Z-axis lifting cylinder 1317 and the yarn winding Z-axis motor 1311, so as to quickly withdraw the yarn winding holder from the joint yarn ring through the cylinder 1317, and does not exclude the mode of only using the Z-axis motor 1311 to drive.

[0088] The yarn winding X-axis moving device includes a yarn winding X-axis guiding component, a yarn winding X-axis driving component and a yarn winding X-axis platform 1326. The yarn winding X-axis guiding component includes a yarn winding X-axis guide rail 1324 horizontally installed on the yarn winding Z-axis platform 1326 parallel to the length direction of the spinning frame and a yarn winding X-axis slider 1325 matched with the guide rail. The yarn winding X-axis driving component includes a yarn winding X-axis motor 1321 installed on the yarn winding X-axis guide rail 1324 and a yarn winding X-axis lead screw 1322 connected to the yarn winding X-axis motor shaft. The yarn winding X-axis guide rail 1324 is installed on the yarn winding Z-axis platform 1316, and the yarn winding X-axis lead screw nut 1323 is installed on the yarn winding X-axis platform 1326. The yarn winding X-axis motor 1321 drives the yarn winding X-axis platform 1326 to move horizontally back and forth along the length direction of the spinning frame through the yarn winding Z-axis lead screw 1322 and the yarn winding X-axis lead screw nut 1323.

[0089] The yarn winding Y-axis moving device includes a yarn winding Y-axis guiding component, a yarn winding Y-axis driving component and a yarn winding Y-axis platform 1336. The yarn winding Y-axis guiding component includes a yarn winding Y-axis guide rail 1334 horizontally installed on the yarn winding X-axis platform 1326 in a direction perpendicular to the length direction of the spinning frame, and a yarn winding Y-axis slider 1335 slidably configured along the yarn winding Y-axis guide rail. The yarn winding Y-axis driving component includes a yarn winding Y-axis motor 1331 installed on the yarn winding X-axis platform 1326 and a yarn winding Y-axis lead screw 1332 connected to the yarn winding Y-axis motor shaft. The yarn winding Y-axis platform 1336 is installed on the yarn winding Y-axis slider 1335, and the yarn winding Y-axis lead screw nut 1333 is installed on the yarn winding Y-axis platform. The yarn winding Y-axis motor 1331 drives the yarn winding Y-axis platform 1336 to reciprocate horizontally in a direction perpendicular to the length direction of the spinning frame through the yarn winding Y-axis lead screw 1332 and the yarn winding Y-axis lead screw nut 1333.

[0090] The yarn guide hook lifting device comprises a lifting component and a yarn guide hook Y-axis propulsion device, such as Fig.19 As shown, the lifting component is used as the yarn guide hook lifting component, and the yarn guide hook Y-axis propulsion device is used as the yarn guide hook lifting driving mechanism.

[0091] The Y-axis propulsion device for lifting the yarn hook includes a lifting yarn hook cylinder base 1374, a lifting yarn hook cylinder 1375, and a cylinder guide rail 1373. The yarn hook cylinder base 1374 is fixed on the yarn winding holder 134, and the yarn hook cylinder 1375 is fixed in the lifting yarn hook cylinder base 1374. The cylinder guide rail 1373 is parallel to the cylinder rod, and the lifting component is pushed to reciprocate horizontally in a direction perpendicular to the length direction of the spinning frame by extending and retracting the cylinder rod.

[0092] The lifting component includes a rotating cross bar 1371, a cross bar rotating base 1372 and a reset spring connecting the rotating cross bar 1371 and the lifting guide hook cylinder base 1374. The rotating cross bar 1371 and the cross bar rotating base 1372 are connected by a hinge, and the two can achieve a relative rotation of 90 degrees. The reset spring makes the rotating cross bar 1371 in the extreme position where the length direction remains parallel to the X-axis. When the yarn tube 44 applies a force to the rotating cross bar 1371 along the positive direction of the Y-axis (towards the direction approaching the spinning frame), the rotating cross bar 1371 can be rotated to be parallel to the Y-axis in the length direction (the end of the swing of the rotating cross bar 1371 swings toward the direction approaching the spinning frame). When the force applied by the yarn tube 44 to the rotating cross bar 1371 is removed, the reset spring restores the rotating cross bar 1371 to be parallel to the X-axis in the length direction.

[0093] The yarn guide hook lifting device is used to lift the yarn guide hook when the yarn winding device is put from the top end of the tube yarn to the outside of the tube yarn to prevent the yarn guide hook from interfering with the yarn winding device. If the length of the three cantilever rods 1341 on the yarn winding holder 134 is relatively short, even if the yarn guide hook is not lifted, the space between the yarn guide hook and the top end of the yarn tube can also pass through the yarn winding holder, and there is no need to install the yarn guide hook lifting device on the yarn winding device.

[0094] The yarn pressing device comprises a yarn pressing component 111 and a yarn pressing component moving device. Figure 5 , 9 , 21,

[0095] The yarn pressing component 111 is a "Y"-shaped open curved surface structure (a yarn pressing component with a planar structure is not excluded), and the inner surface of the yarn pressing component 111 can be in contact with the outer surface of the yarn tube 44 and the outer surfaces of the three cantilever rods of the yarn winding holder 134;

[0096] like Figure 5 As shown, the yarn pressing component moving device includes a yarn pressing Z-axis moving device and a yarn pressing Y-axis moving device, the yarn pressing Z-axis moving device includes a yarn pressing Z-axis guiding component, a yarn pressing Z-axis driving component and a yarn pressing Z-axis platform 1146, the yarn pressing Z-axis guiding component includes a yarn pressing Z-axis guide rail 1144 installed on the first moving platform 22 in the vertical direction, and a yarn pressing Z-axis slider 1145 slidably configured along the yarn pressing Z-axis guide rail, the yarn pressing Z-axis driving component includes a yarn pressing Z-axis motor 1141 installed on the first moving platform 22 and a yarn pressing Z-axis lead screw 1142 connected to the yarn pressing Z-axis motor shaft, the yarn pressing Z-axis platform 1146 is installed on the yarn pressing Z-axis slider 1145, the yarn pressing Z-axis lead screw nut 1143 is installed on the yarn pressing Z-axis platform 1146, and the yarn pressing Z-axis stepping motor 1141 drives the yarn pressing Z-axis platform 1146 to reciprocate along the vertical direction through the yarn pressing Z-axis lead screw 1142 and the yarn pressing Z-axis lead screw nut 1143;

[0097] like Fig. 9As shown, the yarn pressing Y-axis moving device includes a yarn pressing Y-axis guiding component and a yarn pressing Y-axis driving component. The yarn pressing Y-axis guiding component includes a yarn pressing Y-axis guide rail 1132 horizontally installed on a yarn pressing Z-axis platform 1146 perpendicular to the length direction of the spinning frame. The yarn pressing Y-axis driving component is a yarn pressing Y-axis cylinder 1131 installed on the yarn pressing Z-axis platform 1146, which pushes the yarn pressing component 111 to reciprocate horizontally in a direction perpendicular to the length of the spinning frame by extending and retracting the cylinder rod.

[0098] The brake device includes a brake device component 291 and a brake device Z-axis moving device. Figure 3 As shown,

[0099] The brake spindle component 291 is of a "Z"-shaped structure, which does not rule out the possibility of using other structural forms to meet the needs of brake spindles. The lower end is connected to the brake spindle Z-axis slider 292 and the brake spindle Z-axis driving cylinder 294 in the brake spindle Z-axis moving device, and the upper end extends toward the spinning frame. The brake spindle Z-axis moving device (as a brake spindle driving device) includes a brake spindle Z-axis guiding component and a brake spindle Z-axis driving component. The brake spindle Z-axis guiding component includes a brake spindle Z-axis guide rail 293 installed on the box machine base 20 in the vertical direction, and a brake spindle Z-axis slider 292 slidingly configured along the brake spindle Z-axis guide rail. The brake spindle Z-axis driving component is a brake spindle Z-axis driving cylinder 294 installed on the box machine base 20, which pushes the brake spindle component 291 to reciprocate in the vertical direction by extending and retracting the cylinder rod. The box body base 20 is a box body fixedly installed below the first moving platform 22, and is used to install the brake ingot pressing device components and also to carry the first moving platform.

[0100] When the ring spinning yarn jointing device only has the freedom of movement along the length direction of the spinning frame, when the ring spinning yarn jointing device moves to the front or rear of the spinning frame, the brake spindle pressure component will interfere with the front or rear of the spinning frame. For this reason, it is necessary to increase the freedom of the brake spindle pressure component in the horizontal direction perpendicular to the length of the spinning frame, and drive the brake spindle pressure component 291 away from the spinning frame when the brake spindle is not needed to prevent the brake spindle pressure component from interfering with the front or rear of the spinning frame when the ring spinning yarn jointing device moves to the front or rear of the spinning frame. When the brake spindle is needed, it is moved to a position close to the spinning frame where the brake spindle can be pressed.

[0101] By means of the above mechanism and device, the working process of the ring spinning yarn joint device is as follows:

[0102] The elastic joint yarn 1215 is unwound from the tube yarn or the cone yarn and then inserted into the yarn guide tube. The elastic joint yarn is a fine yarn with elasticity. In this embodiment, it is a spandex core-spun yarn. It is not excluded that a strong twist yarn or other fine yarn with good elasticity is used as the joint yarn. The end of the joint yarn coming out of the yarn guide tube is held by the yarn holding device, and the yarn head clamping structure of the yarn winding holding device moves to between the yarn guide port support 1212 of the yarn holding device and the yarn guide tube 1211 to clamp and fix the joint yarn. Figure 11 to Figure 13 As shown, the yarn end clamping structure is used to pull the elastic joint yarn 1215 out of the yarn guide tube 1211, and the elastic joint yarn 1215 is hung into the yarn guide port 1216 under the cooperation of the yarn outlet device and the yarn winding device. In this embodiment, the yarn guide port 1216 is in a spiral curve shape, similar to the yarn guide hook of the ring spinning machine. Then, the yarn guide port swing motor 1251 drives the yarn guide port 1216 to be in an upright state to prepare for yarn winding, as shown in FIG. Fig.14 As shown. Under the coordination of the movement of the yarn discharging device and the yarn winding device, the elastic joint yarn 1215 is wound into a yarn loop (as shown) on the outer side of the three cantilever rods 1341 of the yarn winding holder 134. Fig.15 The number of yarn circles should be greater than one circle to ensure that the middle section of the elastic joint yarn 1215 will press the yarn head clamped by the yarn head clamping structure. After the yarn winding is completed, the tail end of the elastic joint yarn 1215 of this section is held by the yarn picking ring component (as shown in FIG. Figures 15 to 17 Shown), to keep the yarn circle shape that this section elasticity piecing yarn 1215 is wound into constant. So far, the piecing yarn preparation before the joint has been completed.

[0103] When a spindle breaks, the ring spinning joint device moves to the broken spindle position along the length direction of the spinning frame, and uses a steel collar plate detection device installed on the spinning frame to detect the position of the steel collar plate. According to the position of the steel collar plate detected by the steel collar plate detection device, the yarn picking ring component and the yarn guide port 1216 follow the steel collar plate 41 to make a step-by-step movement up and down, and stretch a section of elastic joint yarn 1215 between the yarn picking ring component and the yarn guide port 1216 into a straight line segment with a diameter approximately the same as the steel collar 42 (as shown in Figure 18), and then the straight line segment elastic joint yarn 1215 is hung into the steel wire ring 43 by the coordinated movement of the yarn winding moving device and the yarn guide port moving device. In this embodiment, the steel wire ring 43 is attracted by the steel wire ring positioning magnet installed on the steel collar plate of the spinning frame and has stayed on the side of the steel collar 42 away from the spinning frame.

[0104] After the wire ring 43 is hung, the yarn winding device moves forward along the Z axis to a position where the rotating cross bar 1371 is slightly higher than the top of the yarn tube 44 (such as Fig.19As shown in the figure, the cylinder rod of the yarn hook lifting cylinder 1375 in the yarn hook lifting device extends, pushing the lifting component to move toward the spinning frame to insert the rotating cross bar 1371 under the yarn hook 45, and the yarn winding moving device drives the yarn winding device to move in the positive direction of the Z axis and the positive direction of the Y axis at the same time to lift the yarn hook until the yarn loop formed by the elastic joint yarn 1215 on the yarn winding holder 134 is sent to the top of the bobbin 44. The yarn winding Z axis moving device drives the yarn winding holder 134 to a height position close to the upper surface of the steel collar 42 (as shown in the figure). Fig. 20 The yarn pressing component 111 is driven by the yarn pressing Z-axis moving device to move to the yarn pressing position, and the yarn pressing Y-axis moving device quickly presses the yarn pressing component 111 on the surface of the three cantilever rods of the yarn tube 44 and the yarn winding holder 134 (as shown in FIG. Figure 20-21 The yarn ring is pressed and fixed, the yarn ring clamping cylinder 1351 in the yarn ring picking component and the yarn head clamping cylinder 1361 in the yarn head clamping structure are opened at the same time, and the yarn head of this section of elastic joint yarn 1215 and the tail end of the yarn ring are released. At this time, the cylinder rod of the yarn winding Z-axis lifting cylinder 1317 extends to drive the yarn winding holder 134 to move rapidly in the positive direction of the Z axis (vertical upward direction), and the yarn ring formed by the elastic joint yarn 1215 is pressed by the yarn pressing component 111 and will not move with the yarn winding holder 134 The elastic joint yarn 1215 moves upward to wrap the yarn loop formed by the elastic joint yarn 1215 on the surface of the yarn tube 44, and the yarn head part of the elastic joint yarn 1215 and the broken end of the original yarn are wrapped inside the yarn loop to ensure that the normal spinning is not affected by the centrifugal force of the yarn being thrown out during spinning. Whether the elastic joint yarn 1215 is put on the yarn tube or the cop yarn depends on the height of the steel collar 42. Due to the step-by-step movement of the steel collar plate 41, if the joint is not made in time after the broken end, the elastic joint yarn may be put on the yarn tube 44 instead of the cop yarn.

[0105] For the claw-type yarn winding holder 134, since there is a gap between the two rod-shaped parts connected on the side closer to the spinning frame, and there is a gap between the two rod-shaped parts, and there is a gap between the two rod-shaped parts, and the yarn lifting hook device is provided with a rotating cross bar 1371, after the joint yarn loop on the yarn winding holder is separated from the yarn winding holder, the yarn pressing part 111 and the yarn winding holder 134 are withdrawn from the spinning area away from the spinning frame to avoid affecting the subsequent joint operation. If the yarn lifting hook device is not provided with a rotating cross bar 1371, the yarn lifting hook part must be raised to a height higher than the yarn tube before the yarn winding holder is withdrawn away from the spinning frame. Otherwise, the yarn lifting hook part will interfere with the yarn tube during the withdrawal of the yarn winding holder away from the spinning frame. Similarly, if the yarn winding holder is a cylindrical structure, the yarn winding holder must be raised to a height where the yarn winding holder does not interfere with the yarn tube before it can be withdrawn horizontally away from the spinning frame.

[0106] At this point, the elastic joint yarn 1215 is hung into the wire ring 43 and one end is stably wound around the yarn tube 44.

[0107] The yarn guide port 1216 of the yarn outlet device pulls the joint yarn to continue to move to a height position near the yarn guide hook 45, and the elastic joint yarn 1215 is wound into the yarn guide hook 45 (such as Fig. 22 As shown in FIG. 1 ). Since the collar plate detection device can detect the height position of the collar plate, the yarn guide hook only fluctuates within a small height difference range relative to the collar plate. Therefore, the piecing yarn can be wound into the yarn guide hook according to the detected height position of the collar plate.

[0108] Then, the elastic splice yarn 1215 is pulled to the position of the front roller 46 by the yarn discharging device, and the brake spindle component 291 releases the brake spindle 48 to make the bobbin 44 rotate again, and the elastic splice yarn 1215 is fed between the front roller 46 and the leather roller 47 while the leather roller 47 rotates (such as Figure 23-24 The elastic joint yarn 1215 is cut off by the yarn holding device and the yarn cutting device and the raw yarn is held again (as shown in FIG. Fig.25 As shown in the figure, the yarn on one side of the yarn guide opening of the yarn holding device is pulled away by the rollers and the leather rollers, and the cut joint yarn is held by the yarn holding device; another way is that the yarn holding device holds and presses the elastic joint yarn 1215, and the elastic joint yarn 1215 held by the yarn holding device is pulled off under the traction of the front roller 46 and the leather roller 47. This method does not require a yarn cutting device. This "winding around the leather roller" jointing method is well known in the spinning industry. The spun yarn will cause thick sections in some yarn introduction sections. The thick sections will be automatically removed in the automatic winding stage and will not affect the quality of the spun yarn after winding. When the ring spinning frame is a compact spinning frame, and the elastic joint yarn 1215 is hung by the "winding around the leather roller" method, the elastic joint yarn 1215 can be wound in front of the front roller 46 and the front roller leather roller 47, or it can be wound around the leather roller matching the grid circle.

[0109] The above process completes the entire splicing process of this embodiment and retains the yarn end of the clampable elastic splicing yarn 1215 for the next splicing.

[0110] like Figure 2As shown, a track parallel to the length direction of the ring spinning frame is installed on the ground outside the ring spinning frame, with the outer side of the steel collar plate as the reference, and the ring spinning joint device is installed on the track, so that the ring spinning joint device moves along the predetermined track. When the yarn breaks during the spinning process, the ring spinning joint device moves to the corresponding spindle position joint according to the yarn break alarm signal, and the distance between the guide rail and the spinning frame is suitable for the joint action of the ring spinning joint device, ensuring that each device such as the yarn output device, the yarn winding device, the yarn lifting and guide hook device, and the yarn pressing device can cover the movement range required for the joint within the range of their respective degrees of freedom. Of course, it is not ruled out that the first mobile platform 22 is installed on an automatic guided transport platform (such as AGV, AMR and other mobile platforms), which can realize the flexible movement of the ring spinning joint device and improve the maneuverability of the ring spinning joint device for automatic jointing. At this time, the first mobile platform will increase the freedom of horizontal movement perpendicular to the length of the spinning frame. When a broken yarn alarm signal is received, the automatic guided transport platform relies on the navigation system to move to the position of the broken yarn spindle. Due to uneven ground and other reasons, a posture adjustment system is also required between the ring spinning joint device and the automatic guided transport platform to accurately adjust the relative position between the ring spinning joint device and the spinning frame. It is also necessary to increase the swinging freedom of the first mobile platform to ensure the reliability of the joint. For this purpose, it is also necessary to configure a sensor for detecting the relative position of the ring spinning joint device and the spinning frame. Of course, these do not belong to the ring spinning joint device, but to the matching movement and adjustment system.

[0111] Embodiment 2 of a ring spinning yarn joint device of the present invention (see Figure 1 to Figure 26 ):

[0112] The difference between this embodiment and the ring spinning yarn joint device embodiment 1 is that:

[0113] The ring spinning yarn break detection device of this embodiment adds a wire ring finding device (such as Figure 4 , Fig.10 shown).

[0114] The wire ring finding device comprises a wire ring gripper 144, a wire ring gripper driving device and a wire ring positioning component. The wire ring gripper 144 is a hollow cylindrical component that can be sleeved on the outside of the bobbin. The diameter of the lower edge of the wire ring gripper is equivalent to the diameter of the steel collar 42. The lower edge of the wire ring gripper can press the wire ring 43 on the steel collar.

[0115] The wire ring gripper driving device comprises a wire ring gripper rotating device, a wire ring searching Z-axis moving device, and a wire ring searching Y-axis moving device. The wire ring gripper rotating device comprises a gripper rotating stepping motor 1431, a gripper rotating transmission synchronous belt 1432, and a gripper rotating positioning bearing 1433; the wire ring searching Z-axis moving device comprises a wire ring searching Z-axis guiding component, a wire ring searching Z-axis driving component, and a wire ring searching Z-axis platform 1416. The wire ring searching Z-axis guiding component comprises a wire ring searching Z-axis guide rail 1414 installed on the first moving platform 22 in the vertical direction, and a wire ring searching Z-axis slider 1415 slidingly configured along the wire ring searching Z-axis guide rail. The wire ring searching Z-axis driving component comprises a wire ring searching Z-axis motor 1411 installed on the first moving platform 22 and a wire ring searching Z-axis screw rod 1412 connected to the wire ring searching Z-axis motor shaft. The wire ring searching Z-axis platform 1416 is installed on the wire ring searching Z The wire ring Z-axis slider 1415 is mounted on the wire ring Z-axis screw nut 1413, which is mounted on the wire ring Z-axis platform 1416. The wire ring Z-axis motor 1411 drives the wire ring Z-axis platform 1416 to reciprocate along the vertical direction through the wire ring Z-axis screw 1412 and the wire ring Z-axis screw nut 1413. The wire ring Y-axis moving device comprises a wire ring Y-axis guide component, a wire ring Y-axis driving component and a wire ring Y-axis platform 1426. The wire ring Y-axis guide component comprises a wire ring Y-axis guide rail 1424 mounted horizontally on the wire ring Z-axis platform 1416 in a direction perpendicular to the length direction of the spinning frame, and a wire ring Y-axis slider 1425 configured to slide along the wire ring Y-axis guide rail. The wire ring Y-axis driving component comprises a wire ring Y-axis guide rail mounted on the wire ring Z-axis platform 1416. The Y-axis motor 1421 and the Y-axis wire ring-finding screw rod 1422 connected to the Y-axis wire ring-finding motor shaft, the Y-axis wire ring-finding platform 1426 is installed on the Y-axis wire ring-finding slider 1425, and the Y-axis wire ring-finding screw nut 1423 is installed on the Y-axis wire ring-finding platform 1426. The Y-axis wire ring-finding motor 1421 drives the Y-axis wire ring-finding platform 1426 to move horizontally back and forth along the direction perpendicular to the length of the spinning frame through the Y-axis wire ring-finding screw rod 1422 and the Y-axis wire ring-finding screw nut 1423.

[0116] The wire ring positioning component is a component that can block the wire ring, such as Fig.10 As shown, the wire ring stop rod 1434 (as a wire ring positioning component) is a rod-shaped component installed on a fixed cantilever adjacent to the wire ring gripper 144 below the wire ring Y-axis platform 1426. The distance between the wire ring stop rod 1434 and the rotation center of the wire ring gripper 144 is equivalent to the diameter of the steel collar. When the wire ring gripper 144 drives the wire ring 43 to rotate, the rod-shaped wire ring positioning component blocks and stops the wire ring on the side of the steel collar away from the spinning frame.

[0117] When it is necessary to find and locate the wire ring, the Z-axis moving device for finding the wire ring and the Y-axis moving device for finding the wire ring cooperate to move the wire ring gripper 144 to the top of the yarn tube 44 and to the same axial position as the yarn tube. Fig.10 As shown. The lower end of the wire ring gripper 144 is a cone section and the size of the end portion is close to or slightly smaller than the inner diameter of the steel collar 42. The surface of the cone section is attached with an elastic filler with a large friction coefficient, such as silicone. The wire ring gripper 144 is driven by the wire ring Z-axis moving device to press from top to bottom on the inner side of the upper end of the steel collar 42 to ensure that the wire ring 43 is pressed and the outer side is tilted. The tilted outer side facilitates the hanging of the elastic joint yarn 1215. The gripper rotation stepper motor 1431 drives the wire ring gripper 144 to rotate and drive the wire ring 43 to rotate along the steel collar by friction. The wire ring stop rod 1434 blocks and stops the wire ring 43 on the side of the steel collar away from the spinning frame (such as Fig.26 shown).

[0118] In addition to using a blocking component as a wire ring positioning component, a wire ring detection sensor can also be used as a wire ring positioning component. For example, a wire ring detection sensor installed on the wire ring search Y-axis platform 1426 directly or indirectly detects whether the wire ring moves to the side of the steel collar 42 away from the spinning frame as a wire ring positioning component. The wire ring detection sensor can be divided into contact type and non-contact type. The wire ring detection sensor that can detect the wire ring has mature and extensive applications in the broken end detection system. The non-contact type mainly includes photoelectric, inductive, Hall type and other sensors, or uses an image sensor combined with image processing to detect the position of the wire ring; the contact wire ring detection sensor is mechanically triggered when the wire ring 43 moves. The wire ring detection sensor detects the moving position of the wire ring 43 during the rotation of the wire ring gripper. When the wire ring moves to the side of the steel collar away from the spinning frame, the wire ring gripper 144 stops rotating; then the wire ring hanging process is carried out.

[0119] If the yarn guide hook device is installed on the yarn winding holder of the yarn winding device, the yarn guide hook device also needs to be installed on the wire ring Y-axis platform 1426. The yarn guide hook device is the same as the yarn guide hook device installed on the yarn winding holder 134, and is used to lift the yarn guide hook when the wire ring is caught and put into the bobbin yarn. If the yarn guide hook device is installed on the first movable platform 22, the yarn guide hook device does not need to be installed separately on the wire ring finding device.

[0120] Embodiment 3 of a ring spinning yarn joint device of the present invention (see Figure 1 to Figure 28 ):

[0121] The difference between this embodiment and the ring spinning yarn joint device embodiment 2 is that in this embodiment, the cylindrical wire ring gripper 144 is replaced by a rod-shaped wire ring gripper 1440 (such as Fig.28As shown in the figure, the rotation trajectory of the rod-shaped wire ring gripper 1440 is cylindrical and the diameter of the lower end is roughly the same as the diameter of the steel collar, which is equivalent to cutting off most of the wire ring gripper 144 in the circumferential direction and leaving only a longitudinal rod. The process of using the rod-shaped wire ring gripper 1440 to find the wire ring is similar to that of using the cylindrical wire ring gripper 144. After the rotation center of the rod-shaped wire ring gripper 1440 is aligned with the center of the yarn tube, it descends to the height of the lower end of the rod-shaped wire ring gripper 1440 close to the top surface of the steel collar, and the rod-shaped wire ring gripper 1440 starts to rotate. During the rotation, the end of the rod-shaped wire ring gripper 1440 pushes the wire ring to move along the steel collar. When the wire ring rotates to contact the wire ring stop rod 1434, it is blocked and stops moving, and then the joint yarn is hung into the wire ring.

[0122] In order to improve reliability, a magnet is installed at the lower end of the rod-shaped wire ring gripper 1440 close to the steel collar. During the rotation of the rod-shaped wire ring gripper 1440, the magnet at the end of the rod-shaped wire ring gripper 1440 captures the wire ring and drags the wire ring along the steel collar. In order to prevent the yarn head from pushing the wire ring to slide on the steel collar when the bobbin yarn rotates and causing the wire ring to be unable to be found, the rotation direction of the rod-shaped wire ring gripper is opposite to the rotation direction of the bobbin yarn. In this way, even if the yarn head of the bobbin yarn swings and causes the wire ring to slide on the steel collar, the rod-shaped wire ring gripper can find the wire ring as long as it rotates one circle.

[0123] In addition to directly using the wire ring block as the wire ring positioning component, when the rod-shaped wire ring gripper 1440 is used, a sensor installed on the wire ring search Y-axis platform 1426 to detect the rotation position of the rod-shaped wire ring gripper 1440 can be used as the wire ring positioning component. When it is detected that the rod-shaped wire ring gripper 1440 rotates a full circle and returns to the side of the steel collar away from the spinning frame, it is considered that the wire ring has reached the position of the steel collar away from the spinning frame. The position of the wire ring is indirectly detected by detecting the rotation position of the rod-shaped wire ring gripper 1440, and even an angle sensor such as an encoder installed on the gripper rotating stepping motor 1431 can be used as a wire ring detection sensor. It is not ruled out that the lower end of the rod-shaped wire ring gripper is not equipped with a magnetic steel, but a section of flexible material is installed, and the wire ring is found by contacting the top surface of the steel collar. It is also not ruled out that the rod-shaped wire ring gripper uses a triangular joint with a wide upper door and a lower pick to increase its stability and rigidity.

[0124] The lowest position of the yarn guide hook 45 is higher than the top of the yarn tube 44. Since the rod-shaped wire ring gripper 1440 in the present embodiment is rod-shaped and not closed in the circumferential direction, it is assumed that the initial position of its rotation is at the position where the steel collar is farthest from the spinning frame, and it returns to the initial position after rotating one circle. In this way, during the movement of the wire ring finding device from the position away from the spinning frame to the direction close to the spinning frame, as long as the wire ring finding Y-axis platform 1426 and the gripper rotation positioning bearing 1433 can pass through a position higher than the top of the yarn tube and do not interfere with the yarn guide hook, the rod-shaped wire ring gripper 1440 will not interfere with the tube yarn. In this case, there is no need to install a yarn guide hook lifting device on the wire ring finding device. The wire ring grabber 144 is only required to be of a very short height. In this case, if the wire ring grabber can be put outside the yarn tube without lifting the yarn guide hook, there is no need to lift the yarn guide hook device to lift the yarn guide hook.

[0125] In the ring spinning yarn joint device embodiments 1 and 2, the yarn guide opening swinging device drives the yarn guide opening 1216 to swing in a certain position. Fig.11 The horizontal state or Fig.14 The yarn guide is in the vertical state. Fig.11 When the yarn guide port 1216, the yarn holding device and the yarn guide tube 1211 are in a straight line, it is convenient for the yarn end clamping structure to clamp the joint yarn and wind the joint yarn into the yarn guide port 1216. Fig.14 When the yarn guide port 1216 is in the vertical state, it is convenient to cooperate with the yarn winding holder 134 to wind the joint yarn onto the yarn winding holder 134. In addition, when the wire ring is inserted and the leather roller is wound, the yarn guide port needs to be swung to an angle downwardly inclined than the horizontal. When the yarn guide port 1216 swings, the yarn holding device and the yarn cutting device swing together. However, the yarn holding device and the yarn cutting device can also be fixedly installed on the yarn guide Y-axis platform 1226 so that the yarn holding device and the yarn cutting device are connected to the yarn guide Y-axis platform 1226. Fig.11 The position of the yarn guide port is consistent with that of the yarn guide port, but it does not swing with the yarn guide port, and only the freedom of the yarn guide port to swing is retained. Although the freedom of the yarn guide port to swing is preferably to swing around the horizontal axis in the length direction of the spinning frame, it does not exclude swinging around axes in other directions. In addition to swinging, the freedom in the vertical direction can also be used to replace the freedom of the swing of the yarn guide port, and the function of the yarn guide port can also be realized.

[0126] In this embodiment, the yarn holding device and the yarn cutting device are fixedly mounted on the yarn guide Y-axis platform 1226 so that the yarn holding device and the yarn cutting device are connected to the yarn guide Y-axis platform 1226. Fig.11 The position of the yarn guide port is consistent with that of the yarn guide port, and it does not swing with the yarn guide port. At the same time, the swing freedom of the yarn guide port is replaced by the freedom of movement of the yarn guide port in the vertical direction relative to the yarn holding device; specifically, the yarn guide port only retains the open ring-shaped part at the end, and the yarn guide port is driven to move up and down in the vertical direction relative to the yarn cutting device near the exit position of the yarn cutting device through the vertical direction driving device installed on the yarn guide Y-axis platform 1226; when the vertical direction of the yarn guide port is at the same height as the yarn holding device, the yarn cutting device, and the yarn guide tube 1211, it is convenient to take the yarn head clamping structure to clamp the end of the joint yarn and wind the joint yarn into the yarn guide port; when the vertical direction of the yarn guide port rises to a level higher than the yarn holding device, the joint yarn can be pulled to wind onto the yarn winding holder; the yarn guide port can also be lowered to a position lower than the yarn holding device to pass the wire ring and the leather roller. The driving device installed on the yarn guide Y-axis platform 1226 to drive the vertical direction movement of the yarn guide port can adopt a linear motion mechanism or device such as a reciprocating belt, a micro linear motor, and a cylinder.

[0127] Embodiment 4 of a ring spinning yarn joining device of the present invention:

[0128] Since the lowest position of the yarn guide hook must be higher than the top surface of the yarn tube, and the highest position of the yarn guide hook is also determined, therefore, in this embodiment, the yarn guide hook lifting device is installed on the first movable platform 22, and the yarn guide hook lifting component is a rod-shaped or plate-shaped component that can be inserted under the yarn guide hook to lift the yarn guide hook. The yarn guide hook lifting driving mechanism drives the yarn guide hook lifting component to have the freedom of horizontal movement in the vertical direction and perpendicular to the length direction of the spinning frame. When the yarn guide hook needs to be lifted, the yarn guide hook lifting driving mechanism drives the yarn guide hook lifting component to rise to a height that can be inserted between the yarn guide hook and the top surface of the yarn tube, and then drives the yarn guide hook lifting component to move horizontally to the direction close to the spinning frame to the bottom of the yarn guide hook. The yarn guide hook lifting driving mechanism drives the yarn guide hook lifting component to continue to rise until the yarn guide hook is lifted to a position that does not affect the winding retainer being put on the outside of the yarn tube and the wire ring finding device being put on the outside of the yarn tube. This scheme independently configures the yarn guide hook lifting device, and the yarn winding device and the wire ring finding device no longer need to be separately configured with a yarn guide hook lifting device.

[0129] Embodiment 5 of a ring spinning yarn joint device of the present invention (see Figure 1 to Figure 27 ):

[0130] like Fig. 27As shown, in this embodiment, the yarn pressing component 111 in the second embodiment of the ring spinning joint device is replaced by a yarn withdrawal ring component 151. The yarn withdrawal ring component 151 is a "Y"-shaped rod structure, which is installed on the first moving platform through a double-rod cylinder and has the freedom to move in the horizontal direction perpendicular to the length of the spinning frame relative to the first moving platform. When it is necessary to withdraw the joint yarn ring wound on the outside of the winding holder, the cylinder drives the yarn withdrawal ring component 151 to move in the horizontal direction close to the spinning frame to the position of the winding holder. The yarn withdrawal ring component 151 is located on the upper part of the joint yarn ring on the outside of the winding holder. When the winding holder 134 moves upward, the yarn withdrawal ring component 151 blocks the ring. In this case, the yarn withdrawal ring component 151 only needs to have one degree of freedom of horizontal movement perpendicular to the length direction of the spinning frame; or the yarn withdrawal ring component 151 can also actively move downward in the vertical direction to push the ring off the winding holder. In this case, the yarn withdrawal ring component 151 also needs to have the degree of freedom in the vertical direction.

[0131] In addition to being installed on the first movable platform, the yarn withdrawal ring component can also be installed on the yarn winding holder 134, specifically: a yarn ring pusher is installed on the yarn winding holder as the yarn withdrawal ring component, the yarn ring pusher is a horseshoe-shaped component with three holes, the three holes on the yarn ring pusher are respectively mounted on the three cantilever rods 1341 on the yarn winding holder that support the joint yarn ring, the yarn ring pusher is guided by the three cantilever rods on the yarn winding holder, and is pushed by the cylinder installed on the yarn winding holder in the vertical direction to reciprocate along the length direction (vertical direction) of the three cantilever rod components, and when the yarn ring pusher moves downward to its extreme position, it pushes the yarn ring on the yarn winding holder off the yarn winding holder. The yarn ring pusher is not limited to the horseshoe shape, as long as it can push the joint yarn ring off the yarn winding holder when moving downward.

[0132] Embodiment 6 of a ring spinning yarn joint device of the present invention (see Figure 1 to Figure 25 ):

[0133] When inserting the joint yarn into the wire ring and withdrawing the joint yarn loop wound on the outer side of the winding holder, in order to achieve these actions more stably, it is better to know the position of the steel collar plate relative to the first movable platform 22 in the vertical direction more accurately. For this reason, the present embodiment is provided with a steel collar plate detection device for the ring spinning joint device, so that when inserting the steel ring, the yarn ring picking component and the yarn guide port 1216 can follow the steel collar plate 41 to make a step-up movement up and down according to the position of the steel collar plate detected by the steel collar plate detection device, and insert the joint yarn into the wire ring. In addition, when withdrawing the joint yarn loop from the winding holder and winding the yarn guide hook, it can be carried out according to the position of the steel collar plate detected by the steel collar plate detection device.

[0134] The collar plate detection device may adopt one of the following solutions.

[0135] The first one, such as Figure 1 , 2 As shown, the collar plate detection device includes a follower collar plate gripper 214 (as a follower component), a follower component driving device, and a collar plate detection component;

[0136] The follower steel collar gripper 214 is a rod-shaped component installed on the first moving platform through a follower component driving device. The follower steel collar gripper 214 is a "Z"-shaped structural component, with a front end extending toward the spinning frame, a middle part connected to the gripper lifting slider 213, and a rear end being a horizontal surface that is easy to detect;

[0137] The following component driving device drives the following component to have a vertical degree of freedom of movement relative to the first moving platform; the following component driving device includes a gripper lifting cylinder 211, a gripper lifting guide rail 212, and a gripper lifting slider 213. The gripper lifting cylinder 211 and the gripper lifting guide rail 212 are vertically fixedly installed on the box body base 20 and the cylinder rod can extend upward. The cylinder rod end of the gripper lifting cylinder 211 is pressed against the lower surface of the tail end of the following steel collar plate gripper 214, but the cylinder rod of the gripper lifting cylinder 211 is not connected to the following steel collar plate gripper 214. The gripper lifting slider 213 is connected to the following steel collar plate gripper 214 and is installed on the gripper lifting guide rail 212 and can be moved along The gripper lifting cylinder 211 is free to move in the vertical direction. As a follower component driving device, it only has the function of lifting the follower collar plate gripper 214 (as a follower component) in the vertical direction. The follower collar plate gripper 214 descends by its own weight. When the follower collar plate gripper 214 starts to descend from the highest limit position higher than the collar plate in the vertical direction, the follower collar plate gripper 214 can be placed on the collar plate 41 during the process of descending by its own weight. The collar plate 41 holds the follower collar plate gripper 214 so that it follows the lifting movement of the collar plate 41. When a single spindle break detection sensor is installed on the collar plate 41, the follower collar plate gripper 214 may be placed on the single spindle break detection sensor.

[0138] The collar plate detection component is a collar plate detection sensor 215 installed on the gripper lifting guide rail 212. The collar plate detection sensor 215 of this embodiment is an ultrasonic distance sensor, which is used to detect the distance between the horizontal surface of the rear end of the follow-up collar plate gripper 214 and it, so as to detect the relative position in the vertical direction between the follow-up component that moves up and down with the collar plate and the first moving platform. Of course, the collar plate detection sensor 215 can also be installed on the horizontal surface of the rear end of the follow-up collar plate gripper 214 to detect the distance between the horizontal surface of the rear end of the follow-up collar plate gripper 214 and the first moving platform.

[0139] When the spindle breaks, after the first movable platform 22 moves to the corresponding spindle position along the length direction of the spinning frame, the cylinder rod of the gripper lifting cylinder 211 extends upward to send the follow-up steel collar plate gripper 214 to the highest position (higher than the highest position of the steel collar plate 41), and then the first movable platform 22 moves toward the spinning frame and gets close to the spinning frame, the cylinder rod of the gripper lifting cylinder 211 retracts, and the follow-up steel collar plate gripper 214 descends in the vertical direction by its own weight until it is placed on the steel collar plate 41, and follows the steel collar plate 41 to make a step-up movement, and the steel collar plate detection sensor 215 determines the relative position between the steel collar plate and the first movable platform by detecting the distance between the follow-up steel collar plate gripper 214 and the first movable platform, which is used for operations such as hanging wire rings.

[0140] If the first movable platform 22 does not have the freedom to move horizontally in a direction perpendicular to the length of the spinning frame, the follower component driving device needs to be set with the freedom to move horizontally in a direction perpendicular to the length of the spinning frame, so as to drive the follower steel ring plate gripper 214 away from and close to the spinning frame, so as to avoid the follower steel ring plate gripper 214 from interfering with the spinning frame when the ring spinning spinning joint device moves to the head and tail of the spinning frame along the length of the spinning frame.

[0141] The collar plate detection component can adopt contact or non-contact sensors. Common contact sensors include sliding arm resistance displacement sensors, wire displacement sensors, grating rulers, etc. When contact sensors are used, the active parts and sensor structures of the contact sensors are respectively installed on the first moving platform and the follower components; common non-contact sensors include ultrasonic displacement sensors, laser displacement sensors, etc. The non-contact sensors can be installed on the first moving platform or the follower components.

[0142] Secondly, in addition to the method of detecting the distance between the collar plate follower and the first mobile platform, a sensor installed on the first mobile platform can also be used to directly detect the position of the collar plate, such as Figure 3 As shown, the collar plate detection sensor 215 is fixedly installed on the first mobile platform 22 through the collar plate detection bracket 21. The collar plate detection sensor 215 is a laser distance sensor, which detects the relative position of the collar plate relative to the first mobile platform. Alternatively, an image sensor (camera) installed on the first mobile platform can be used as the collar plate detection device. The positional relationship between the collar plate and the camera is detected by analyzing the image collected by the image sensor (camera). Since the positional relationship between the camera and the first mobile platform is known, the positional relationship between the collar plate and the first mobile platform can be determined.

[0143] The coordinate system in the attached drawings of the ring spinning yarn joint device of the present invention adopts a right-handed Cartesian coordinate system. The driving devices in all embodiments can be replaced by common components and mechanisms with the same functions. For example, the movement driven by the cylinder can be changed to a linear motor, a rotary motor plus a screw, a motor plus a cam push rod, an electromagnet, etc., and the guide can be an optical axis, a slider or a linear guide, etc. These are all common sense in the field and will not be repeated. The present invention is not limited to the embodiments discussed above. Those skilled in the art can infer other variant forms based on the present invention, and these variant forms also belong to the subject matter of the present invention.

Claims

1. A ring spinning yarn jointing device, characterized in that It includes a first moving platform, a yarn discharging device, a yarn winding device, a yarn pressing device and a spindle braking device. The first movable platform has at least the freedom to move horizontally along the length direction of the spinning frame; The yarn outlet device comprises a yarn guide port, a yarn guide port motion device and a yarn holding device, wherein the yarn guide port and the yarn holding device are mounted on a first movable platform through the yarn guide port motion device, and the yarn guide port motion device drives the yarn guide port and the yarn holding device to have the freedom to move in a vertical direction, a horizontal direction parallel to the length direction of the spinning frame and a horizontal direction perpendicular to the length direction of the spinning frame relative to the first movable platform, and the yarn guide port also has a swinging degree of freedom or a degree of freedom to move in the vertical direction relative to the yarn holding device; The yarn winding device comprises a yarn winding holding device and a yarn winding moving device, the yarn winding holding device is installed on the first moving platform through the yarn winding moving device, the yarn winding moving device drives the yarn winding holding device to have the freedom to move in the vertical direction, the horizontal direction parallel to the length direction of the spinning frame and the horizontal direction perpendicular to the length direction of the spinning frame relative to the first moving platform, and the yarn winding holding device comprises a yarn winding holding frame and a yarn picking ring component; The yarn pressing device comprises a yarn pressing component and a yarn pressing component moving device, and the yarn pressing component is installed on the first moving platform or the yarn winding holder through the yarn pressing component moving device; The brake spindle device includes a brake spindle pressing device component and a brake spindle driving device. The brake spindle pressing device component is installed on the first movable platform through the brake spindle driving device. The brake spindle driving device drives the brake spindle pressing device component to have at least the freedom of movement in the brake spindle direction relative to the first movable platform.

2. The ring spinning yarn jointing device according to claim 1 is characterized in that The yarn guide port is an open annular component through which the yarn can enter and exit. The yarn holding device comprises a yarn holding component, a yarn holding driving component and a yarn holding guiding component, wherein the yarn holding driving component drives the yarn holding component to perform relative opening and closing movements, and the yarn holding guiding component guides the opening and closing movements of the yarn holding component. The yarn winding holder is a claw-shaped or cylindrical hollow component that can be sleeved on the outside of the tube yarn, and the yarn picking ring component is a component installed on the yarn winding holder and has a positioning joint yarn structure. When the yarn pressing component is mounted on the yarn winding holder, the yarn pressing component has at least a degree of freedom of movement in the vertical direction relative to the yarn winding holder; when the yarn pressing component is mounted on the first movable platform, the yarn pressing component has at least a degree of freedom of horizontal movement perpendicular to the length direction of the spinning frame relative to the first movable platform. The brake spindle direction is the direction in which the brake spindle pressing device component needs to apply force on the brake spindle handle when braking the spindle.

3. The ring spinning yarn jointing device according to claim 2 is characterized in that The claw-type structure of the yarn winding holder means that the yarn winding holder has at least three rod-shaped parts arranged in parallel and connected at the top. When viewed in the parallel direction of the rod-shaped parts, the rod-shaped parts are located on a circle equivalent to the diameter of the steel collar. The cylindrical structure of the yarn winding holder means that the yarn winding holder is a cylindrical part equivalent to the diameter of the steel collar. The yarn pick-up ring component having a positioning joint yarn structure means that the yarn pick-up ring component has a hook-shaped structure or a clamping structure capable of holding the yarn.

4. The ring spinning yarn jointing device according to claim 2 is characterized in that The yarn winding holder is provided with a yarn head clamping structure capable of clamping the joint yarn, and the yarn head clamping structure clamps the joint yarn by opening and closing movement of two parts or an elastic clamping structure. The yarn pick-up ring component is closer to the spinning frame than the joint yarn wound on the yarn winding holder.

5. The ring spinning yarn jointing device according to claim 1 is characterized in that A yarn cutting device is arranged between the yarn guide port and the yarn holding device, and the yarn cutting device comprises a yarn cutting tool and a cutting driving device. The swing freedom of the yarn guide port is the swing around the horizontal axis in the length direction of the spinning frame. The ring spinning yarn joint device comprises a wire ring finding device.

6. The ring spinning yarn jointing device according to claim 5 is characterized in that The wire ring finding device includes a wire ring grabber, a wire ring grabber driving device and a wire ring positioning component. The wire ring grabber is a rotatable hollow cylindrical component or a rod-shaped component that can be sleeved on the outside of the tube yarn. The wire ring grabber is installed on the first movable platform through the wire ring grabber driving device. The wire ring grabber driving device drives the wire ring grabber to have horizontal movement freedom along the vertical direction relative to the first movable platform and perpendicular to the length direction of the spinning frame, and at the same time has the freedom to rotate around the vertical axis. The wire ring positioning component is a wire ring blocking component or a wire ring detection component.

7. The ring spinning yarn joining device according to claim 6 is characterized in that The trajectory formed by the rotation of the wire ring gripper is a tube with a diameter equivalent to that of the steel collar. The rotation direction of the wire ring gripper is opposite to the rotation direction of the yarn tube. The wire ring blocking component is a rod-shaped component installed on the wire ring gripper driving device. The wire ring detection component is a wire ring detection sensor installed on the wire ring gripper driving device to directly or indirectly detect whether the wire ring moves to the side of the steel collar away from the spinning frame.

8. The ring spinning yarn joining device according to claim 1, characterized in that: The ring spinning yarn joint device comprises a steel collar plate detection device and a yarn lifting and guiding hook device. The collar plate detection device is a collar plate detection sensor for detecting the relative position between the collar plate and the first moving platform or between a follower component moving up and down with the collar plate and the first moving platform in the vertical direction. The follower component is a rod-shaped component installed on the first moving platform by a follower component driving device. The follower component driving device drives the follower component to have at least a degree of freedom of movement in the vertical direction relative to the first moving platform. The yarn guide hook lifting device includes a yarn guide hook lifting component and a yarn guide hook lifting driving mechanism. The yarn guide hook lifting component is a component that can extend under the yarn guide hook to lift the yarn guide hook. The yarn guide hook lifting component is installed on the first moving platform or the yarn winding holding device through the yarn guide hook lifting driving mechanism.

9. The ring spinning yarn joining device according to claim 8, characterized in that The collar plate detection sensor is installed on the first moving platform or on the follower component. The follower component driving device has the function of lifting the follower component in the vertical direction, and the follower component descends by its own weight. When the yarn lifting hook component is installed on the first movable platform, the yarn lifting hook component has at least two degrees of freedom of movement along the vertical direction and the horizontal direction perpendicular to the length direction of the spinning frame relative to the first movable platform. When the yarn lifting hook component is installed on the yarn winding holder, the yarn lifting hook component has horizontal freedom of movement along the length direction perpendicular to the spinning frame relative to the yarn winding holder. The end of the yarn lifting hook component includes a rotating cross bar along the length direction of the spinning frame. The rotating cross bar has the freedom to swing around the vertical axis. The rotating cross bar is in an extreme position parallel to the length direction of the spinning frame due to elastic force, and the end of the rotating cross bar away from the swing axis can swing toward the direction close to the spinning frame.

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