Suspension flyer roving frame with collective doffing

Abstract

This invention relates to the field of suspended roving frame technology and discloses a suspended roving frame capable of collective doffing. The frame includes a suspended roving frame body, a doffing frame on the inner wall near the top, an auxiliary electric telescopic rod inside the doffing frame, a top clamping cylinder at the bottom of the auxiliary electric telescopic rod, a base plate on the inner wall near the bottom of the suspended roving frame body, a fixed cylinder on the top of the base plate, a buffer cylinder slidably fitted onto the inner wall of the fixed cylinder, a rotating frame installed near the outer edge of the buffer cylinder near the top, and a rotating rod rotatably fitted onto the inner wall of the rotating frame. Through the coordinated use of the adjusting rod and the inclined plate, synchronous control of the top clamping and bottom clamping cylinder release is achieved. With the drive of the lifting frame and the auxiliary electric telescopic rod, the entire process of full bobbin grabbing, transfer, and empty bobbin setting requires no manual intervention, improving doffing efficiency. Furthermore, in the event of a single spindle malfunction, an alarm can be triggered and the operation can be skipped without affecting the overall machine operation.

Description

Technical Field

[0001] This invention relates to the field of suspended roving frame technology, specifically to a suspended roving frame capable of collective doffing. Background Technology

[0002] The suspended spindle roving frame is a type of roving frame commonly used in the modern textile industry. In a suspended spindle roving frame, the spindle is supported by a bearing seat fixed to the upper spindle, and the spindle wings are also suspended. This structure separates the spinning part from the winding part.

[0003] Traditional collective doffing systems for suspended spindle roving frames face numerous technical bottlenecks in practical applications, making it difficult to balance doffing efficiency, bobbin stability, and automation adaptability. Traditional doffing systems often have independently driven top and bottom grippers, lacking a mechanical linkage structure. This results in a choppy connection between clamping a full yarn bobbin and releasing an empty yarn bobbin, requiring complex electronic control logic for coordination, which can easily lead to malfunctions. Traditional equipment often uses a single spring for buffering, which cannot effectively absorb the impact energy when the yarn bobbin falls, easily leading to deformation of the yarn bobbin opening and loosening of the roving. In addition, it lacks an adaptive clamping and limiting structure, making it unable to adapt to the buffering needs of yarn bobbins of different diameters. Traditional equipment relies on a single sensor to detect the clamping status, lacking the coordination of pressure feedback and infrared verification, which easily leads to problems such as "false clamping" and "over-clamping". In addition, the entire machine needs to be shut down when a single spindle fails, and there is no local fault tolerance and alarm mechanism. The adjustment of the gripper opening relies on manual intervention and cannot adapt to different yarn bobbins through mechanical structure. Furthermore, the guide and limiting structure of the gripping components is imperfect, which causes the gripper to tilt or jam, affecting the continuity of yarn doffing. Summary of the Invention

[0004] The present invention provides a suspended roving frame that enables collective doffing, thereby solving the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a suspended roving frame capable of collective doffing, comprising a suspended roving frame body, a doffing frame provided on the inner wall near the top of the suspended roving frame body, an auxiliary electric telescopic rod provided inside the doffing frame, a top clamping cylinder fitted at the bottom of the auxiliary electric telescopic rod, a bottom plate provided on the inner wall near the bottom of the suspended roving frame body, a fixed cylinder installed on the top of the bottom plate, a buffer cylinder slidably sleeved on the inner wall of the fixed cylinder, a rotating frame installed on the outer edge near the top of the buffer cylinder, a rotating rod rotatably sleeved on the inner wall of the rotating frame, an elastic pad sleeved on the outer edge of the rotating rod, a foam buffer pad installed on the side of the elastic pad, an inner rod fitted on the bottom of the inner wall of the fixed cylinder, a bottom clamping cylinder installed on the top of the inner rod, a round rod rotatably connected to the inner wall of the bottom clamping cylinder, an inclined plate sleeved on the outer edge of the round rod, an electric push rod installed on the outer edge of the inclined plate, and an adjusting rod provided on the inner wall of the bottom clamping cylinder.

[0006] As a preferred embodiment of the present invention, a guide groove is provided on the inner wall of the bottom clamp near the bottom. An adjustable electric telescopic rod is installed at the bottom of the inner wall of the guide groove. A guide block is assembled at the output end of the adjustable electric telescopic rod, and the side of the guide block is slidably connected to the inner wall of the guide groove. The inner wall of the guide block is sleeved with the outer edge of the adjusting rod.

[0007] As a preferred embodiment of the present invention, a limiting cylinder is fitted on the side of the inclined plate, a limiting rod is slidably sleeved on the inner wall of the limiting cylinder, a side plate is welded to the side of the limiting rod, a friction plate is installed on the side of the side plate, a pressure sensor is installed on the inner wall of the friction plate, and a wear-resistant conductive rubber layer is installed on the side of the pressure sensor.

[0008] As a preferred embodiment of the present invention, side cylinders are mounted on both sides of the rotating frame, and the inner walls of the two side cylinders are rotatably connected to the side of the rotating rod. A torsion spring is movably sleeved on the rotating rod, one end of the torsion spring is connected to the outer edge of the rotating rod, and the end of the torsion spring away from the rotating rod is connected to the inner wall of the side cylinder.

[0009] As a preferred embodiment of the present invention, a torsion spring II is movably sleeved on the outer edge of the round rod, one end of the torsion spring II is connected to the outer edge of the round rod, and the other end of the torsion spring II is connected to the inner wall of the bottom clamp.

[0010] As a preferred embodiment of the present invention, the inner wall of the inclined plate is equipped with a magnetic plate, the inner wall of the bottom clamp is equipped with an electromagnet sheet, and the electromagnet sheet is attracted to the side adjacent to the magnetic plate. A contact sensor is equipped at the top of the inclined plate near the center of the inner cavity of the bottom clamp, and the contact sensor is electrically connected to the electromagnet sheet.

[0011] As a preferred embodiment of the present invention, the buffer cylinder is fitted with a magnetic ring, the inner wall of the fixed cylinder is fitted with a coil, and the inner wall of the coil is slidably fitted with the outer edge of the magnetic ring. The bottom of the buffer cylinder is fixedly connected with a spring, and the bottom of the spring is connected to the bottom of the inner wall of the fixed cylinder.

[0012] As a preferred embodiment of the present invention, an infrared sensor is installed on the outer edge of the top clamping cylinder near the top, and an inclined plate two is provided on the inner wall of the top clamping cylinder. The connection structure between the inclined plate two and the top clamping cylinder is completely consistent with the connection structure between the inclined plate one and the bottom clamping cylinder. The pressure sensor and the infrared sensor in the inclined plate two are electrically connected to the auxiliary electric telescopic rod.

[0013] As a preferred embodiment of the present invention, the inner rod has a built-in signal conditioning module and a PLC controller, and both the signal conditioning module and the PLC controller are electrically connected to the coil and the electric push rod.

[0014] As a preferred embodiment of the present invention, a lifting frame is installed on the top of the suspended roving frame body, and the output end of the lifting frame is connected to the top of the doffing frame. An audible and visual alarm is installed on the top of the suspended roving frame body.

[0015] The present invention has the following beneficial effects: 1. This suspended spindle roving frame, which can realize collective doffing, achieves synchronous control of the top clamping and bottom clamping by using the adjustment rod and the inclined plate. With the drive of the lifting frame and the auxiliary electric telescopic rod, the entire process of full yarn bobbin grabbing, transfer and empty yarn bobbin setting does not require manual intervention, thus improving doffing efficiency. In addition, when a single spindle fails, it can mark the alarm and skip the operation without affecting the operation of the whole machine.

[0016] 2. This suspended spindle roving frame, which can realize collective doffing, has a four-level buffer structure consisting of springs, electromagnetic damping, elastic pads, and foam buffer pads. After the impact energy of the yarn bobbin falling is absorbed by multiple layers, the impact force is small. Combined with the adaptive clamping limit driven by the torsion spring, it can be adapted to yarn bobbins of different diameters and reduce the yarn bobbin damage rate.

[0017] 3. This suspended spindle roving frame, which can realize collective doffing, integrates infrared and pressure sensors in the top clamp and is equipped with contact sensors and pressure feedback components in the bottom clamp, forming a triple judgment mechanism of infrared verification, pressure detection and contact confirmation. This reduces clamping force deviation, improves the stable clamping rate of yarn bobbins, and completely eliminates the risk of detachment or deformation caused by false clamping or over-clamping.

[0018] 4. This suspended spindle roving frame, which can achieve collective doffing, uses an electric telescopic rod to drive the guide block and raise and lower the adjusting rod, thereby achieving mechanical adaptive adjustment of the gripper opening. With the guide and limiting of the limit rod and limit cylinder, the coaxiality deviation of the gripper movement is reduced, eliminating tilting and jamming problems. Furthermore, the adsorption and fixing structure of the electromagnet plate and the magnetic plate further improves the operational stability of the clamping components, adapting to the doffing requirements of different yarn bobbins. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the top clamping structure of the present invention; Figure 3 This is a schematic diagram of the bottom clamping structure of the present invention; Figure 4 This is a schematic cross-sectional view of the buffer cylinder structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the guide block structure of the present invention; Figure 7 This is a schematic diagram of the foam cushioning pad structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B; Figure 9 This is a schematic diagram of the inclined plate structure of the present invention; Figure 10 This is a schematic diagram of the adjusting rod structure of the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram at point C.

[0020] In the diagram: 1. Main body of the suspended spindle roving frame; 2. Doffing frame; 3. Auxiliary electric telescopic rod; 4. Top clamp; 5. Base plate; 6. Fixed cylinder; 7. Buffer cylinder; 8. Coil; 9. Magnetic ring; 10. Spring; 11. Inner rod; 12. Bottom clamp; 13. Inclined plate one; 14. Round rod; 15. Electric push rod; 16. Side plate; 17. Limiting rod; 18. Limiting cylinder; 19. Friction plate; 20. Wear-resistant conductive rubber layer; 21. 1. Pressure sensor; 22. Adjustable electric telescopic rod; 23. Guide block; 24. Guide groove; 25. Adjusting rod; 26. Rotating frame; 27. Side cylinder; 28. Rotating rod; 29. ​​Torsion spring one; 30. Elastic pad; 31. Foam cushioning pad; 32. Infrared sensor; 33. Inclined plate two; 34. Magnetic plate; 35. Electromagnetic sheet; 36. Contact sensor; 37. Lifting frame; 38. Audible and visual alarm; 39. Torsion spring two. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-11A suspended roving frame capable of collective doffing includes a suspended roving frame body 1. A doffing frame 2 is located on the inner wall near the top of the suspended roving frame body 1. An auxiliary electric telescopic rod 3 is located inside the doffing frame 2. A top clamp 4 is fitted at the bottom of the auxiliary electric telescopic rod 3. A base plate 5 is located on the inner wall near the bottom of the suspended roving frame body 1. A fixed cylinder 6 is installed at the top of the base plate 5. A buffer cylinder 7 is slidably sleeved on the inner wall of the fixed cylinder 6. A rotating frame 26 is installed near the outer edge of the buffer cylinder 7 near the top. A rotating rod 28 is rotatably sleeved on the inner wall of the rotating frame 26. An elastic pad 30 is sleeved on the outer edge of the rotating rod 28. A foam buffer pad 31 is installed on the side of the elastic pad 30. An inner rod 11 is fitted at the bottom of the inner wall of the fixed cylinder 6. A bottom clamp 12 is installed at the top of the inner rod 11. A round rod 14 is rotatably connected to the inner wall of the bottom clamp 12. An inclined plate 13 is sleeved on the outer edge of the round rod 14. An electric push rod 15 is installed on the outer edge of the inclined plate 13. The bottom clamp... The inner wall of 12 is equipped with an adjusting rod 25. The doffing frame 2 is made of aluminum alloy profile welded and is rigidly connected to the top inner wall of the suspended spindle roving frame body 1 by bolts. An installation chamber is reserved inside for fixing the auxiliary electric telescopic rod 3. The auxiliary electric telescopic rod 3 is a servo electric push rod 15 to ensure the lifting accuracy of the top clamping cylinder 4. The bottom plate 5 is a steel plate stamping part with rust prevention treatment. It is fixed to the equipment frame by expansion bolts to provide stable support for the fixed cylinder 6. The fit gap between the buffer cylinder 7 and the fixed cylinder 6 is small to ensure smooth sliding without jamming. The elastic pad 30 is made of silicone material with a Shore hardness of 60D, and the foam buffer pad 31 is made of high-density polyurethane material. The two are combined to form a double-layer elastic buffer structure, which can adapt to the curvature of the bottom of the yarn bobbin. The inner rod 11 has a reserved wiring channel to facilitate the arrangement of signal cables and power lines. The inner wall of the bottom clamping cylinder 12 is processed with a smooth wear-resistant coating to reduce friction loss when the inclined plate 13 rotates.

[0023] In a preferred embodiment, a guide groove 24 is provided on the inner wall of the bottom clamp 12 near the bottom. An adjustable electric telescopic rod 22 is installed at the bottom of the inner wall of the guide groove 24. A guide block 23 is assembled at the output end of the adjustable electric telescopic rod 22, and the side of the guide block 23 is slidably connected to the inner wall of the guide groove 24. The inner wall of the guide block 23 is sleeved with the outer edge of the adjusting rod 25. The guide groove 24 is a rectangular groove structure, and the inner wall is precision ground to ensure that the guide block 23 slides without jamming. The adjustable electric telescopic rod 22 is a miniature DC electric push rod 15. Its bottom is fixed to the inner wall of the guide groove 24 through a flange, and its output end is connected to the guide block 23 through a thread. A wear-resistant slider is provided on the side of the guide block 23, which fits against the inner wall of the guide groove 24. The guide block 23 drives the adjusting rod 25 to move up and down synchronously, which facilitates smooth connection with the bottom of the inclined plate 13 and transmission of thrust.

[0024] In a preferred embodiment, a limiting cylinder 18 is fitted to the side of the inclined plate 13. A limiting rod 17 is slidably sleeved on the inner wall of the limiting cylinder 18. A side plate 16 is welded to the side of the limiting rod 17. A friction plate 19 is installed on the side of the side plate 16. A pressure sensor 21 is installed on the inner wall of the friction plate 19, and a wear-resistant conductive rubber layer 20 is installed on the side of the pressure sensor 21. The inclined plate 13 is a bent steel plate with a rust-proof paint coating. A rolling bearing is installed at its connection with the round rod 14 to reduce rotational resistance. The limiting cylinder 18 and the limiting rod 17 are clearance-fitted. The two components together form a guide and limiting structure to ensure that the side plate 16 remains horizontal during movement and avoids tilting. The side plate 16 has an arc-shaped structure that matches the curvature of the inner wall of the yarn tube. The friction plate 19 is made of wear-resistant nylon material with anti-slip texture on the inner side to increase the friction with the inner wall of the yarn tube. The pressure sensor 21 is a miniature thin-film pressure sensor 21, which is embedded in the preset groove of the friction plate 19. The surface of the wear-resistant conductive rubber layer 20 is flush with the friction plate 19, which not only protects the pressure sensor 21 from wear but also conducts electrical signals and enhances the tightness of the fit with the inner wall of the yarn tube.

[0025] In a preferred embodiment, side cylinders 27 are mounted on both sides of the rotating frame 26. The inner walls of the two side cylinders 27 are rotatably connected to the sides of the rotating rod 28. A torsion spring 29 is movably sleeved on the rotating rod 28. One end of the torsion spring 29 is connected to the outer edge of the rotating rod 28, and the end of the torsion spring 29 away from the rotating rod 28 is connected to the inner wall of the side cylinder 27. The rotating frame 26 has a U-shaped structure and is fixed to the outer edge of the buffer cylinder 7 by bolts. The side cylinder 27 has a cylindrical hollow structure, and the inner wall is fitted with... The rotating rod 28 is equipped with a copper sleeve to reduce friction when it rotates. The rotating rod 28 is a steel machined part with chrome plating for rust prevention. The connection between the rotating rod 28 and the elastic pad 30 is an interference fit to ensure that the elastic pad 30 rotates synchronously with the rotating rod 28. The torsion spring 29 is a cylindrical torsion spring. When the yarn bobbin pushes the elastic pad 30 to rotate, the torsion spring 29 is twisted and stores force to generate a reverse elastic force, which not only helps to absorb impact energy, but also drives the elastic pad 30 and the foam buffer pad 31 to stick tightly to the outer wall of the yarn bobbin, so as to achieve self-adaptive clamping and limiting.

[0026] In a preferred embodiment, a torsion spring 39 is movably sleeved on the outer edge of the round rod 14. One end of the torsion spring 39 is connected to the outer edge of the round rod 14, and the other end of the torsion spring 39 is connected to the inner wall of the bottom clamping cylinder 12. The round rod 14 is a solid optical shaft, and its two ends are connected to the inner wall of the bottom clamping cylinder 12 through bearings to ensure smooth rotation. When the adjusting rod 25 pushes the inclined plate 13 to rotate around the round rod 14, the torsion spring 39 is compressed and stores force. When the adjusting rod 25 is reset, the torsion spring 39 releases its elastic force, driving the inclined plate 13 to quickly return to its original position, ensuring that the bottom clamping cylinder 12 promptly returns to the clamping state. The surface of the torsion spring 39 is coated with anti-rust lubricant to extend its service life.

[0027] In a preferred embodiment, a magnet plate 34 is fitted to the inner wall of the inclined plate 13, and an electromagnet sheet 35 is fitted to the inner wall of the bottom clamp 12. The electromagnet sheet 35 is attracted to the adjacent side of the magnet plate 34. A contact sensor 36 is fitted to the top of the inclined plate 13 near the center of the inner cavity of the bottom clamp 12, and the contact sensor 36 is electrically connected to the electromagnet sheet 35. The magnet plate 34 is a neodymium iron boron strong magnet, which is fixed in the groove of the inner wall of the inclined plate 13 by adhesive. When the electromagnet sheet 35 is energized, it generates... A strong magnetic field is used to attract and fix the inclined plate 34, ensuring that the inclined plate 13 remains stably open when not in operation. The contact sensor 36 is a miniature limit switch with its trigger end protruding from the top surface of the inclined plate 13. When the adjusting rod 25 moves up and contacts the contact sensor 36, the sensor outputs a high-level signal, controlling the electromagnet 35 to be energized and attracted. When the adjusting rod 25 moves down and loses contact, the sensor outputs a low-level signal, the electromagnet 35 is de-energized, the attraction force disappears, and the inclined plate 13 can be rotated and unlocked.

[0028] In a preferred embodiment, a magnetic ring 9 is sleeved on the buffer cylinder 7, and a coil 8 is sleeved on the inner wall of the fixed cylinder 6. The inner wall of the coil 8 is slidably sleeved with the outer edge of the magnetic ring 9. A spring 10 is fixedly connected to the bottom of the buffer cylinder 7, and the bottom of the spring 10 is connected to the bottom of the inner wall of the fixed cylinder 6. The magnetic ring 9 is a neodymium iron boron strong magnetic ring to ensure no friction and good magnetic field coupling during sliding. The coil 8 is made of enameled copper wire and encapsulated. It is fixed to the inner wall of the fixed cylinder 6 and generates a stable magnetic field after being energized. The spring 10 is a cylindrical helical compression spring 10 made of spring steel and galvanized for rust prevention. Its upper and lower ends are welded and fixed to the bottom of the buffer cylinder 7 and the bottom of the inner wall of the fixed cylinder 6, respectively. Together with the electromagnetic damping, it forms a double buffer structure to effectively absorb the impact energy of the yarn bobbin falling.

[0029] In a preferred embodiment, an infrared sensor 32 is installed near the outer edge of the top clamping cylinder 4. The inner wall of the top clamping cylinder 4 is provided with a second inclined plate 33, and the connection structure between the second inclined plate 33 and the top clamping cylinder 4 is completely consistent with the connection structure between the first inclined plate 13 and the bottom clamping cylinder 12. The pressure sensor 21 and the infrared sensor 32 inside the second inclined plate 33 are electrically connected to the auxiliary electric telescopic rod 3. The infrared sensor 32 is a reflective infrared sensor 32, which is symmetrically installed on the outer edge of the top clamping cylinder 4 through a bracket to detect whether the yarn bobbin is fully inserted into the top clamping cylinder 4. The connection structure between the second inclined plate 33 and the top clamping cylinder 4 is exactly the same as that of the first inclined plate 13, ensuring the consistency and interchangeability of the top clamping and the bottom clamping. The signal output terminals of the pressure sensor 21 and the infrared sensor 32 are connected to the PLC controller through shielded cables. When the infrared sensor 32 detects that the yarn bobbin is not fully inserted, or the pressure sensor 21 detects that the clamping pressure is not up to standard, the PLC controller outputs a command to control the extension and retraction of the auxiliary electric telescopic rod 3 to adjust the position of the top clamping cylinder 4 until the clamping requirements are met.

[0030] In a preferred embodiment, the inner rod 11 has a built-in signal conditioning module and a PLC controller, both of which are electrically connected to the coil 8 and the electric push rod 15. The inner rod 11 has a reserved installation chamber, in which the signal conditioning module and the PLC controller are fixed. The signal conditioning module has a built-in operational amplifier, an RC low-pass filter, and a voltage comparator, which are used to amplify the mV-level induction signal generated by the coil 8 to a 0-5V standard voltage signal and filter out electromagnetic interference. The PLC controller is a small programmable logic controller with a built-in control program. It receives signals from the signal conditioning module, pressure sensor 21, infrared sensor 32, and other components, and outputs drive instructions according to preset logic to control the actions of the electric push rod 15, the adjusting electric telescopic rod 22, the auxiliary electric telescopic rod 3, and other actuators to achieve automated control of collective doffing.

[0031] In a preferred embodiment, a lifting frame 37 is installed on the top of the suspended roving frame body 1, and the output end of the lifting frame 37 is connected to the top of the doffing frame 2. An audible and visual alarm 38 is installed on the top of the suspended roving frame body 1. The lifting frame 37 adopts a ball screw type lifting mechanism, driven by a servo motor, to drive the doffing frame 2 and the top clamp 4 to achieve vertical translation, and complete the gripping and transfer of the full yarn bobbin. The audible and visual alarm 38 adopts an industrial-grade audible and visual alarm device, which is installed in a conspicuous position on the top of the suspended roving frame body 1. When a clamping failure occurs in a certain spindle position, the PLC controller triggers the audible and visual alarm 38 to start, and at the same time marks the faulty spindle position, which is convenient for operators to quickly troubleshoot. Moreover, the faulty spindle position does not affect the normal doffing operation of other spindle positions.

[0032] Working principle: I. Initial Standby State Before the main body 1 of the suspended spindle roving frame is operated, the doffing frame 2 is located at the top of the equipment in the standby position, the top clamp 4 is in the retracted state, the inclined plate 13 inside the bottom clamp 12 is kept in the open state under the attraction of the electromagnet plate 35 and the magnet plate 34, the friction plate 19 is in close contact with the inner wall of the empty yarn tube, and the pressure sensor 21 monitors the clamping pressure in real time to ensure stable winding of the empty yarn tube. The buffer cylinder 7 is in the initial position at the top of the fixed cylinder 6 under the support of the spring 10, the magnet ring 9 is aligned with the upper end of the coil 8, and the elastic pad 30 and the foam buffer pad 31 are in close contact with the inner wall of the empty yarn cylinder under the action of the torsion spring 29. II. Full Yarn Detection and Doffing Start When the roving is wound to the set length, the full yarn detection sensor sends a signal, and the PLC controller triggers the collective doffing process: the spinning mechanism stops operating, the palm is lifted to release the roving tension, and the lifting frame 37 drives the doffing frame 2 to move the top clamp 4 down along the inner wall of the equipment until the top clamp 4 is fitted inside the top of the full yarn cylinder. III. Bottom clamp 12 releases the full yarn cylinder The PLC controller starts the adjustment electric telescopic rod 22, and its output end drives the guide block 23 to move down along the inner wall of the guide groove 24. The guide block 23 drives the adjustment rod 25 to move down synchronously. The bottom of the adjusting rod 25 contacts the contact sensor 36, and the contact sensor 36 sends a signal to de-energize the electromagnet 35, causing the attraction between the electromagnet 35 and the magnet plate 34 to disappear. As the adjusting rod 25 continues to move downward, it pushes the inclined plate 13 to rotate, the torsion spring 39 is compressed, and the inclined plate 13 drives the electric push rod 15 and the side plate 16 to move away from the full yarn tube. The friction plate 19 separates from the inner wall of the full yarn tube, and the bottom clamp 12 releases the full yarn tube. IV. Top clamp 4 holds the full yarn tube. After the top clamping cylinder 4 is filled with yarn bobbin, the infrared sensor 32 starts to detect. If it is detected that the yarn bobbin is not fully clamped, when the lifting frame 37 drives the yarn doffing frame 2 to move upward, the PLC controller drives the auxiliary electric telescopic rod 3 to extend, assisting the top clamping cylinder 4 to stay until the inclined plate 2 33 is in contact with the inner wall of the full yarn bobbin. The pressure sensor 21 inside the inclined plate 33 detects the clamping pressure in real time. When the pressure value reaches the predetermined value, it is determined that the clamping is stable. If the pressure is adjusted to the upper limit multiple times but still does not meet the standard, the auxiliary electric telescopic rod 3 drives the top clamping cylinder 4 to move up and reset quickly to avoid conflict with the subsequent operation process of the device. The audible and visual alarm 38 is activated to mark the spindle position as faulty. The subsequent doffing process skips this position until it is manually checked and repaired.

[0033] After the clamping is stable, the lifting frame 37 drives the doffing frame 2 to move the top clamping cylinder 4 and the full yarn cylinder upward synchronously, detaching from the area of ​​the bottom clamping cylinder 12 and moving to the designated full yarn storage position. V. Empty yarn bobbin falling and cushioning After the full yarn bobbin is transferred, the output end of the adjusting electric telescopic rod 22 in the bottom clamp 12 moves upward. The output end of the adjusting electric telescopic rod 22 drives the guide block 23 and the adjusting rod 25 to move upward. The adjusting rod 25 separates from the inclined plate 13. The torsion spring 39 resets and pushes the inclined plate 13 back to its original position. The electromagnet 35 is re-energized and attracts the magnet plate 34. The inclined plate 13 remains open. The empty yarn bobbin falls from the doffing frame 2 into the buffer cylinder 7. The bottom inner wall of the empty yarn bobbin contacts the elastic pad 30 and the foam buffer pad 31, pushing the elastic pad 30 to rotate around the rotating rod 28. The torsion spring 29 is compressed and generates a reverse elastic force, which, together with the elastic deformation of the foam buffer pad 31, absorbs the initial impact. The weight of the yarn bobbin causes the buffer cylinder 7 to move down along the inner wall of the fixed cylinder 6, and the spring 10 is compressed to further absorb the impact energy. At the same time, the buffer cylinder 7 causes the magnetic ring 9 to slide on the inner wall of the coil 8, cutting the magnetic field lines to generate an induced voltage and generate electromagnetic damping, which further reduces the shock of the empty yarn bobbin. The induced voltage is amplified, filtered, and compared by the signal conditioning module built into the inner rod 11, and then transmitted to the PLC controller. The PLC controller drives the electric push rod 15 to move the side plate 16. The limit rod 17 slides along the inner wall of the limit cylinder 18 for auxiliary guidance. The friction plate 19 is in close contact with the inner wall of the empty yarn tube. After the pressure sensor 21 reports that the pressure has reached the standard, the electric push rod 15 stops moving, thus completing the limit fixation of the empty yarn tube.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A suspended roving frame capable of collective doffing, comprising a suspended roving frame body (1), characterized in that: The suspended roving frame body (1) has a doffing frame (2) on its inner wall near the top. The doffing frame (2) has an auxiliary electric telescopic rod (3) inside. The bottom of the auxiliary electric telescopic rod (3) is fitted with a top clamp (4). The suspended roving frame body (1) has a base plate (5) on its inner wall near the bottom. The top of the base plate (5) is fitted with a fixed cylinder (6). The inner wall of the fixed cylinder (6) is slidably fitted with a buffer cylinder (7). The outer edge of the buffer cylinder (7) near the top is fitted with a rotating frame (26). The inner wall of the rotating frame (26) is rotatably fitted with a rotating rod. (28), an elastic pad (30) is sleeved on the outer edge of the rotating rod (28), a foam buffer pad (31) is installed on the side of the elastic pad (30), an inner rod (11) is assembled at the bottom of the inner wall of the fixed cylinder (6), a bottom clamp (12) is installed at the top of the inner rod (11), a round rod (14) is rotatably connected to the inner wall of the bottom clamp (12), an inclined plate (13) is sleeved on the outer edge of the round rod (14), an electric push rod (15) is installed on the outer edge of the inclined plate (13), and an adjusting rod (25) is provided on the inner wall of the bottom clamp (12).

2. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: The bottom clamp (12) has a guide groove (24) on its inner wall near the bottom. An adjustable electric telescopic rod (22) is installed at the bottom of the inner wall of the guide groove (24). A guide block (23) is assembled at the output end of the adjustable electric telescopic rod (22). The side of the guide block (23) is slidably connected to the inner wall of the guide groove (24). The inner wall of the guide block (23) is sleeved with the outer edge of the adjusting rod (25).

3. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: The side of the inclined plate (13) is fitted with a limiting cylinder (18), and the inner wall of the limiting cylinder (18) is slidably sleeved with a limiting rod (17). The side of the limiting rod (17) is welded with a side plate (16), and the side of the side plate (16) is fitted with a friction plate (19). The inner wall of the friction plate (19) is fitted with a pressure sensor (21), and the side of the pressure sensor (21) is fitted with a wear-resistant conductive rubber layer (20).

4. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: Both sides of the rotating frame (26) are equipped with side cylinders (27). The inner walls of the two side cylinders (27) are rotatably connected to the side of the rotating rod (28). The rotating rod (28) is movably sleeved with a torsion spring (29). One end of the torsion spring (29) is connected to the outer edge of the rotating rod (28), and the end of the torsion spring (29) away from the rotating rod (28) is connected to the inner wall of the side cylinder (27).

5. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: A torsion spring (39) is movably sleeved on the outer edge of the round rod (14). One end of the torsion spring (39) is connected to the outer edge of the round rod (14), and the other end of the torsion spring (39) is connected to the inner wall of the bottom clamp (12).

6. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: The inner wall of the inclined plate (13) is equipped with a magnet plate (34), and the inner wall of the bottom clamp (12) is equipped with an electromagnet plate (35). The electromagnet plate (35) is attracted to the side of the magnet plate (34) adjacent to it. The top of the inclined plate (13) near the center of the inner cavity of the bottom clamp (12) is equipped with a contact sensor (36), and the contact sensor (36) is electrically connected to the electromagnet plate (35).

7. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: The buffer cylinder (7) is fitted with a magnet ring (9), and the inner wall of the fixed cylinder (6) is fitted with a coil (8), and the inner wall of the coil (8) is slidably fitted with the outer edge of the magnet ring (9). The bottom of the buffer cylinder (7) is fixedly connected with a spring (10), and the bottom of the spring (10) is connected to the bottom of the inner wall of the fixed cylinder (6).

8. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: An infrared sensor (32) is installed near the outer edge of the top of the top clamp (4). The inner wall of the top clamp (4) is provided with a second inclined plate (33). The connection structure between the second inclined plate (33) and the top clamp (4) is completely consistent with the connection structure between the first inclined plate (13) and the bottom clamp (12). The pressure sensor (21) and the infrared sensor (32) inside the second inclined plate (33) are both electrically connected to the auxiliary electric telescopic rod (3).

9. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: The inner rod (11) has a built-in signal conditioning module and a PLC controller, and both the signal conditioning module and the PLC controller are electrically connected to the coil (8) and the electric push rod (15).

10. The suspended spindle roving frame capable of collective doffing according to claim 1, characterized in that: The top of the suspended roving frame body (1) is equipped with a lifting frame (37), and the output end of the lifting frame (37) is connected to the top of the doffing frame (2). The top of the suspended roving frame body (1) is equipped with an audible and visual alarm (38).

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