Steel wire ring positioning device and method for automatic joint of spinning frame

Abstract

The invention provides a steel wire ring positioning device and method for automatic joint of a spinning frame. The bead ring positioning device comprises a Z-axis displacement mechanism, a Y-axis displacement mechanism, a base, a guide structure, a transmission ring body, a bead ring shifting block and a driving mechanism, a first opening part is formed in the foremost end of the guide structure in the Y-axis direction, and a second opening part is formed in the transmission ring body. And when the second opening part and the first opening part are completely overlapped or partially overlapped, a space is provided for the transmission ring body to horizontally penetrate through the spindle. The opening part is arranged on the guide structure at the head of the base and the transmission ring body, so that the device can conveniently, directly and horizontally penetrate through a spindle to reach the position of a steel collar, the action of firstly moving upwards to the position above the spindle and then moving downwards to the position of the steel collar is avoided, and the response speed of steel wire ring positioning is increased; interference with other devices such as a yarn guide hook of the spinning frame is avoided, smoothness and reliability of automatic jointing of the spinning frame are guaranteed, unnecessary downtime is shortened, and production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a wire ring positioning device and method for automatic jointing of a spinning frame. Background Art

[0002] In the automatic piecing process of ring spinning, the automatic positioning of the wire ring is a key link. The current mainstream technologies include electromagnetic adsorption, air blowing and mechanical toggle.

[0003] For the electromagnetic adsorption type, since the wire ring slides quickly on the steel collar, the friction coefficient between them is required to be low. The use of electromagnetic adsorption will produce magnetization, which will affect its sliding.

[0004] For the air-blowing type, for example, the patent document with publication number CN 113279093B discloses an automatic threading method and threading device for a ring spinning machine wire ring. The control requirements for the angle of the air nozzle and the air output are high, and because the steel collar plate itself moves up and down continuously, the wire ring positioning mechanism must maintain accurate alignment distance and angle during the following process, which is even more difficult.

[0005] For the mechanical toggle type, for example, the patent document with publication number CN115369531B discloses a wire ring finding device for ring spinning joints. In order to avoid the spindle, before the wire ring is pulled, the device needs to be raised above the top of the spindle, so that a yarn guide hook lifting device needs to be added. This scheme has a complex structure. Not only is the action complicated and time-consuming, but it also increases the coupling between the device and the spinning machine equipment, which is easy to cause damage to another device due to the failure of one device. Summary of the invention

[0006] In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a wire ring positioning device and method for automatic splicing of a spinning frame.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problem is: a wire ring positioning device for automatic splicing of a spinning frame, comprising: a base, which is set horizontally; A Y-axis displacement mechanism, which is used to drive the base to move horizontally in a direction perpendicular to the length direction of the ring plate of the spinning frame; A Z-axis shifting mechanism, which is used to drive the Y-axis shifting mechanism and the base to move up and down; A guide structure, which is located at the front end of the base, the guide path of the guide structure is circular, and the front end of the guide structure along the Y-axis direction is provided with a first opening, and the first opening provides space for the guide structure to pass through the spindle horizontally; The driving ring body is matched with the guiding structure. A second opening is provided on the driving ring body. When the second opening and the first opening completely coincide or partially overlap, the second opening provides space for the driving ring body to horizontally pass through the spindle. The traveller pusher is connected to the driving ring body and extends downward from the driving ring body. The driving mechanism drives the driving ring body to rotate around its own axis through the transmission mechanism. At the same time, the trajectory formed by the rotation of the traveller pusher along with the driving ring body is a circular ring with a diameter equivalent to the ring diameter.

[0008] In the present invention, by providing openings on the guiding structure at the head of the base and the driving ring body, it is possible to conveniently and directly horizontally pass through the spindle to reach the ring rail position, eliminating the need to first move up above the spindle and then move down to the ring rail position, improving the response speed of traveller positioning, not interfering with other devices such as the yarn guide hook of the spinning frame, ensuring the smoothness and reliability of the automatic joint of the spinning frame, reducing unnecessary downtime, and improving production efficiency.

[0009] Further, the guiding structure is a guiding ring. The guiding ring is fixed on the base. The first opening is arranged at the front end of the guiding ring. The driving ring body is matched with the guiding ring.

[0010] Adopting the above preferred scheme facilitates the replacement and maintenance of the guiding structure and the driving ring body.

[0011] Further, the central angle corresponding to the first opening on the guiding ring is 30° - 45°; the central angle corresponding to the second opening on the driving ring body is 30° - 45°.

[0012] Adopting the above preferred scheme facilitates the unobstructed and smooth passing of the guiding structure and the driving ring body through the spindle, and at the same time ensures that the driving ring body can continuously run along the guiding structure.

[0013] Further, the central angle corresponding to the first opening on the guiding ring is 38°, and the central angle corresponding to the second opening on the driving ring body is 38°.

[0014] Adopting the above preferred scheme maximizes the structural compactness of the device on the basis of ensuring functional reliability.

[0015] Further, the traveller pusher is a rectangular sheet.

[0016] Adopting the above preferred scheme can tolerate deviations on the Z-axis and the X-axis / Y-axis to a certain extent, ensuring that the traveller is smoothly pushed to the set position.

[0017] Further, the material of the traveller pusher is rubber or silicone rubber.

[0018] With the above - mentioned preferred solution, damage to the traveler and ring during toggling can be prevented.

[0019] Furthermore, a magnetic body for adsorbing the traveler or an air - pipe nozzle for adsorbing the traveler is provided on the traveler toggle head.

[0020] With the above - mentioned preferred solution, when toggling the traveler, the traveler can be made to lean against the traveler toggle head, and when the traveler toggle head separates from the traveler, the position of the traveler on the circumference of the ring will not be affected, improving the accuracy of the toggling position of the traveler.

[0021] Furthermore, a position - in - place sensor for detecting the angular position of the transmission ring body is provided on the base.

[0022] With the above - mentioned preferred solution, it is convenient to accurately control the docking position of the traveler toggle head.

[0023] Furthermore, an external tooth shape is provided on the outer circumference of the transmission ring body. The transmission mechanism includes a main synchronous pulley, an idler synchronous pulley, and a gear set. The main synchronous pulley is connected to the output shaft of the driving mechanism. The main synchronous pulley and the idler synchronous pulley are connected by a synchronous belt. The idler synchronous pulley drives the gear set to transmit power. Two gears in the gear set are engaged with the external tooth shape of the transmission ring body. The central angle formed by the two gears in the gear set that are engaged with the external tooth shape of the transmission ring body and the center of the transmission ring body is greater than the central angle formed by the second opening part on the transmission ring body.

[0024] With the above - mentioned preferred solution, the transmission structure is simple and reliable, ensuring the continuous operation of the open - loop transmission ring body in the circumferential direction.

[0025] A method for positioning a traveler for automatic yarn splicing in a spinning frame includes the following steps: Step 1: After a yarn break occurs in the spinning frame, the traveler stops at a random position on the circular track of the ring. Step 2: The Z - axis displacement mechanism drives the base to move above the ring rail, so that the lower edge height of the traveler toggle head is slightly higher than the upper edge height of the ring. Step 3: The Y - axis displacement mechanism drives the base to move horizontally along the direction perpendicular to the length of the ring rail of the spinning frame, so that the transmission ring body horizontally passes through the spindle, and the axis of the transmission ring body coincides with the rotation axis of the spindle. Step 4: The driving mechanism drives the traveler toggle head to rotate and stop at a set angular position. Step 5: The Z - axis displacement mechanism drives the base to move upward so that the lower edge height of the traveler toggle head is slightly higher than the upper edge height of the traveler. Then the driving mechanism drives the transmission ring body to rotate, so that the second opening part of the transmission ring body and the first opening part of the guiding structure overlap. Finally, the Y - axis displacement mechanism drives the base to horizontally retreat from above the ring rail.

[0026] The present invention directly and horizontally crosses the spindle to reach the steel ring position, eliminating the action of first moving up to the top of the spindle and then moving down to the steel ring position, improving the response speed of the steel ring positioning, and will not interfere with other devices such as the yarn guide hook of the spinning frame, thereby ensuring the smoothness and reliability of the automatic joint of the spinning frame, reducing unnecessary downtime, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural diagram of the spindle of a spinning frame.

[0029] Figure 2 It is a structural schematic diagram of the wire ring positioning device of the present invention.

[0030] Figure 3 It is a partial enlarged view of the head of the wire ring positioning device of the present invention.

[0031] Figure 4 It is a structural schematic diagram of an implementation method of a guide structure.

[0032] Figure 5 It is a structural schematic diagram of an implementation method of a transmission ring body.

[0033] Figure 6 It is a schematic diagram of the initial position of the transmission ring after passing through the spindle.

[0034] Figure 7 It is a schematic diagram of the position when the transmission ring moves the wire ring to the set position.

[0035] The numbers and letters in the figure represent the names of the corresponding parts: 10- Y-axis shifting mechanism; 11- Z-axis shifting mechanism; 12- driving mechanism; 20- main wheel of synchronous wheel; 21- idler wheel of synchronous wheel; 22- gear set; 23- transmission ring body; 231- second opening; 30- guide structure; 31- first opening; 40- spindle; 41- collar plate; 42- collar; 43- wire ring; 50- wire ring shifting head; 60- base; 61- in-position sensor. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figure 1 shown, it is a schematic structural diagram at the spindle of a flyer frame. A plurality of rings 42 are arranged at intervals in the length direction of the ring rail 41 of the flyer frame. A traveller 43 that can move along the circumference of the ring 42 is installed on the ring 42. When the flyer frame is working, the yarn passes through the traveller 43, and the traveller 43 rotates around the ring 42 along with the yarn. When the yarn breaks, the traveller 43 will randomly stop at any position on the ring. When it is necessary to automatically re-thread the yarn to the traveller 43, the traveller needs to be moved to a specified position to facilitate the automatic splicing operation.

[0038] As Figures 2 - 7 shown, an embodiment of the present invention is: a traveller positioning device for automatic splicing of a flyer frame, including: A base 60, which is horizontally arranged; A Y-axis displacement mechanism 10, which is used to drive the base 60 to move horizontally along a direction perpendicular to the length direction of the ring rail of the flyer frame; A Z-axis displacement mechanism 11, which is used to drive the Y-axis displacement mechanism 10 and the base 60 to move up and down; A guiding structure 30, which is located at the front end of the base 60. The guiding path of the guiding structure 30 is circular, and a first opening 31 is provided at the frontmost end of the guiding structure 30 in the Y-axis direction. The first opening 31 provides space for the guiding structure 30 to horizontally pass through the spindle; A transmission ring body 23, which is matched with the guiding structure 30. A second opening 231 is provided on the transmission ring body 23. When the second opening 231 and the first opening 31 completely coincide or partially overlap, the second opening 231 provides space for the transmission ring body 23 to horizontally pass through the spindle 40; A traveller pusher 50, which is connected to the transmission ring body 23 and extends downward from the transmission ring body; A driving mechanism 12, which drives the transmission ring body 23 to rotate around its own axis through a transmission mechanism. At the same time, the trajectory formed by the rotation of the traveller pusher 50 along with the transmission ring body 23 is a ring with a diameter equivalent to the diameter of the ring 42.

[0039] The beneficial effects of adopting the above technical solution are as follows: By providing an opening in the guiding structure at the head of the base and the transmission ring body, it is convenient to directly pass horizontally through the spindle to reach the position of the ring, eliminating the need to first move up above the spindle and then move down to the position of the ring. This improves the response speed of the traveler positioning, does not interfere with other devices such as the yarn guide hook of the spinning frame, ensures the smoothness and reliability of the automatic joint of the spinning frame, reduces unnecessary downtime, and improves production efficiency.

[0040] In the present invention, the specific structural forms of the Y-axis displacement mechanism and the Z-axis displacement mechanism are not limited and can be selected from the prior art, such as a lead screw mechanism, a linear electric cylinder, or a synchronous belt displacement mechanism.

[0041] In the present invention, the specific structural form of the guiding structure is not limited and can be selected from the prior art, such as a guiding groove directly opened on the base. The following provides a preferred embodiment. The guiding structure 30 is a guiding ring, which is fixed on the base 60. The front end of the guiding ring is provided with a first opening 31, and the transmission ring body 23 is matched with the guiding ring. The beneficial effects of adopting the above technical solution are as follows: It is convenient for the replacement and maintenance of the guiding structure and the transmission ring body.

[0042] In some other embodiments of the present invention, the central angle corresponding to the first opening 31 on the guiding ring is 30° - 45°; the central angle corresponding to the second opening 231 on the transmission ring body 23 is 30° - 45°. The beneficial effects of adopting the above technical solution are as follows: It is convenient for the guiding structure and the transmission ring body to smoothly pass through the spindle without obstruction, and at the same time ensures that the transmission ring body can continuously run along the guiding structure.

[0043] In some other embodiments of the present invention, the central angle corresponding to the first opening 31 on the guiding ring is 38°, and the central angle corresponding to the second opening 231 on the transmission ring body 23 is 38°. The beneficial effects of adopting the above technical solution are as follows: On the basis of meeting the functional reliability, the structural compactness of the device is maximally improved.

[0044] In some other embodiments of the present invention, the traveler pusher 50 is a rectangular sheet. The beneficial effects of adopting the above technical solution are as follows: It can tolerate deviations on the Z-axis and the X-axis / Y-axis to a certain extent, ensuring that the traveler can be smoothly pushed to the set position.

[0045] In some other embodiments of the present invention, the material of the traveler pusher 50 is rubber or silicone rubber. The beneficial effects of adopting the above technical solution are as follows: It prevents damage to the traveler and the ring during pushing.

[0046] In some other embodiments of the present invention, a magnetic body for adsorbing the traveler or an air pipe nozzle for adsorbing the traveler is provided on the traveler pusher 50. The beneficial effect of adopting the above technical solution is that when the traveler is pushed, the traveler can be made to lean against the traveler pusher, and when the traveler pusher is separated from the traveler, it will not affect the position of the traveler on the circumference of the ring, thereby improving the accuracy of the position where the traveler is pushed.

[0047] In some other embodiments of the present invention, a position-in-place sensor 61 for detecting the angular position of the transmission ring body is provided on the base 60. The beneficial effect of adopting the above technical solution is that it is convenient to accurately control the docking position of the traveler pusher.

[0048] In the present invention, the structural form of the transmission mechanism is not limited and can be selected from the prior art, such as a synchronous belt transmission form. The following provides a preferred embodiment. An external tooth shape is provided on the outer circumference of the transmission ring body 23. The transmission mechanism includes a main synchronous wheel 20, an idler synchronous wheel 21, and a gear set 22. The main synchronous wheel 20 is connected to the output shaft of the drive mechanism 12. The main synchronous wheel 20 and the idler synchronous wheel 21 are connected by a synchronous belt. The idler synchronous wheel 21 drives the gear set 22 to operate. Two gears in the gear set 22 are engaged with the external tooth shape of the transmission ring body 23. The central angle formed by the two gears in the gear set 22 that are engaged with the external tooth shape of the transmission ring body 23 and the center of the transmission ring body is greater than the central angle formed by the second opening 231 on the transmission ring body. The beneficial effect of adopting the above technical solution is that the transmission structure is simple and reliable, ensuring the continuous operation of the open-loop transmission ring body in the circumferential direction.

[0049] A method for positioning a traveler for automatic splicing of a spinning frame includes the following steps: Step 1, after a yarn break occurs in the spinning frame, the traveler stops at a random position on the circular track of the ring. Step 2, the Z-axis displacement mechanism drives the base to move above the ring rail, so that the lower edge height of the traveler pusher is slightly higher than the upper edge height of the ring. Step 3, the Y-axis displacement mechanism drives the base to move horizontally along the direction perpendicular to the length of the ring rail of the spinning frame, so that the transmission ring body horizontally passes through the spindle, and the axis of the transmission ring body coincides with the rotation axis of the spindle. Step 4, the drive mechanism drives the traveler pusher to rotate and stops at a set angular position. Step 5, the Z-axis displacement mechanism drives the base to move upward so that the lower edge height of the traveler pusher is slightly higher than the upper edge height of the traveler. Then the drive mechanism drives the transmission ring body to rotate, so that the second opening of the transmission ring body and the first opening of the guiding structure overlap. Finally, the Y-axis displacement mechanism drives the base to horizontally retreat from above the ring rail.

[0050] The present invention directly horizontally passes through the spindle to reach the ring traveler position, eliminating the movement of first moving up above the spindle and then moving down to the ring traveler position, improving the response speed of the traveler positioning, not interfering with other devices such as the yarn guide hook of the spinning frame, ensuring the smoothness and reliability of the automatic joint of the spinning frame, reducing unnecessary downtime, and improving production efficiency.

[0051] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those of ordinary skill in the art to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A traveller positioning device for automatic jointing of ring spinning frames, characterized in that, Comprising: A base, which is horizontally arranged; A Y-axis displacement mechanism, which is used to drive the base to horizontally move along a direction perpendicular to the length direction of the ring rail of the spinning frame; A Z-axis displacement mechanism, which is used to drive the Y-axis displacement mechanism and the base to move up and down; A guiding structure, which is located at the front end of the base. The guiding path of the guiding structure is circular, and a first opening is provided at the frontmost end along the Y-axis direction of the guiding structure. The first opening provides space for the guiding structure to horizontally pass through the spindle; A transmission ring body, which is matched with the guiding structure. A second opening is provided on the transmission ring body. When the second opening and the first opening completely coincide or partially overlap, the second opening provides space for the transmission ring body to horizontally pass through the spindle; A traveller pick-up, which is connected to the transmission ring body and extends downward from the transmission ring body; A driving mechanism, which drives the transmission ring body to rotate around its own axis through a transmission mechanism. At the same time, the trajectory formed by the rotation of the traveller pick-up along with the transmission ring body is a circular ring with a diameter equivalent to the ring diameter; 2. The traveller positioning device for automatic joint of ring spinning frame according to claim 1, wherein The guiding structure is a guiding ring, which is fixed on the base. The front end of the guiding ring is configured with the first opening, and the transmission ring body is matched with the guiding ring; 3. The traveller positioning device for automatic joint of ring spinning frame according to claim 2, characterized in that, The central angle corresponding to the first opening on the guiding ring is 30° - 45°; the central angle corresponding to the second opening on the transmission ring body is 30° - 45°; 4. The traveller positioning device for automatic jointing of the ring spinning frame according to claim 3, wherein, The central angle corresponding to the first opening on the guiding ring is 38°, and the central angle corresponding to the second opening on the transmission ring body is 38°; 5. The traveller positioning device for automatic joint of ring spinning frame according to claim 1, characterized in that, The traveller pick-up is a rectangular sheet; 6. The traveller positioning device for automatic yarn splicing of a ring spinning frame according to claim 5, characterized in that, The material of the traveller pick-up is rubber or silicone rubber; 7. The traveller positioning device for automatic joint of ring spinning frame according to claim 5, wherein, A magnetic body for adsorbing the traveller is arranged on the traveller pick-up or an air pipe nozzle for adsorbing the traveller is arranged; 8. The traveller positioning device for automatic yarn splicing of a ring spinning frame according to claim 1, wherein, A position sensor for detecting the angular position of the transmission ring body is arranged on the base; 9. The traveller positioning device for automatic joint of ring spinning frame according to claim 1, wherein, External teeth are provided on the outer periphery of the transmission ring body. The transmission mechanism includes a main synchronous pulley, an idler synchronous pulley, and a gear set. The main synchronous pulley is connected to the output shaft of the driving mechanism. The main synchronous pulley and the idler synchronous pulley are connected by a synchronous belt. The idler synchronous pulley drives the gear set to transmit. Two gears in the gear set are engaged with the external teeth of the transmission ring body. The central angle formed by the two gears in the gear set engaged with the external teeth of the transmission ring body and the center of the transmission ring body is greater than the central angle formed by the second opening on the transmission ring body; 10. A method for positioning a traveler for automatic splicing of a ring spinning frame, characterized in that, Based on the traveller positioning device for automatic joint of spinning frame as described in any one of claims 1 - 9, the following steps are included: Step 1, after a yarn break occurs in the spinning frame, the traveller stops at a random position on the circular track of the ring; Step 2, the Z-axis displacement mechanism drives the base to move above the ring rail, so that the lower edge height of the traveller pick-up is slightly higher than the upper edge height of the ring; Step 3, the Y-axis displacement mechanism drives the base to horizontally move along a direction perpendicular to the length direction of the ring rail of the spinning frame, so that the transmission ring body horizontally passes through the spindle, and the axis of the transmission ring body coincides with the rotation axis of the spindle; Step 4, the driving mechanism drives the traveller pick-up to rotate and stops at a set angular position; Step 5, the Z-axis displacement mechanism drives the base to move upward so that the lower edge height of the bead flipper is slightly higher than the upper edge height of the bead, then the driving mechanism drives the transmission ring body to rotate to overlap the second opening of the transmission ring body and the first opening of the guiding structure, and finally the Y-axis displacement mechanism drives the base to horizontally retract from above the ring rail.

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