A ring spinning machine steel band collective doffing bobbin conveying device and a method of using the same

Abstract

The application provides a ring spinning machine steel belt type collective doffing bobbin conveying device and a use method thereof, and belongs to the technical field of ring spinning machines. The ring spinning machine steel belt type collective doffing bobbin conveying device comprises a rack, and further comprises: an upper guide rail, which is fixedly arranged on the upper side of the rack and is provided with a plurality of upper trays driven by a steel belt, and full bobbins are arranged on the upper trays; a lower guide rail, which is fixedly arranged on the lower side of the rack and is provided with a plurality of lower trays driven by a steel belt, and empty bobbins are arranged on the lower trays; and a material taking and reversing mechanism, which is used for transferring the full bobbins on the upper trays to the lower trays and transferring the empty bobbins on the lower trays to the upper trays. The material taking and reversing mechanism is arranged, synchronous grabbing and exchanging of the full bobbins and the empty bobbins are realized, the doffing time is significantly shortened, the production efficiency is improved, and the device is especially suitable for long car, multi-spindle high-efficiency production requirements.

Description

Technical Field

[0001] This invention relates to the field of ring spinning machine technology, specifically to a steel belt type collective doffing bobbin conveyor for ring spinning machines and its usage method. Background Technology

[0002] The spinning machine is a crucial piece of equipment in the textile industry's production process, affecting a large number of processes. Its performance directly impacts yarn quality, economic benefits, and other aspects. Currently, the more advanced collective doffing bobbin conveying devices mainly consist of guide rails, trays, levers, steel belts, and drive units, including steps such as yarn pulling, bobbin insertion, and bobbin feeding. Yarn pulling and bobbin insertion are primarily accomplished by the yarn gripping cups mounted on the crossbeam that runs through the entire machine. The crossbeam moves up and down and back and forth as needed. The inner layer of each yarn gripping cup has a rubber bag, which, after inflation, can grip the yarn bobbin and empty bobbin for yarn pulling or bobbin insertion.

[0003] However, the existing collective doffing bobbin conveying device does not perform yarn pulling and bobbin insertion simultaneously; the workflow strictly requires pulling first and then inserting. During operation, a full yarn bobbin is placed on the upper guide rail, and an empty bobbin is placed on the lower guide rail. A preparation station is set up between the upper and lower guide rails. First, the crossbeam, in conjunction with the yarn gripper, transfers the empty bobbin on the lower guide rail spindle to the preparation station. Then, the crossbeam, in conjunction with the yarn gripper, inserts the full yarn bobbin on the upper guide rail spindle into the empty spindle on the lower guide rail. Finally, the crossbeam, in conjunction with the yarn gripper, inserts the empty bobbin on the preparation station into the empty spindle on the upper guide rail, thus completing the full yarn process on the empty bobbin. The entire operation is quite cumbersome, which means the production efficiency of the device needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art, and to propose a steel belt type collective doffing bobbin conveying device for a spinning machine and its usage method.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A steel belt type collective doffing bobbin conveyor for a spinning frame includes a frame and further includes: The upper guide rail is fixed on the upper side of the frame. Several upper trays driven by steel belts are provided on the upper guide rail, and full yarn tubes are sleeved on the upper trays. The lower guide rail is fixed to the lower side of the frame. Several lower trays driven by steel belts are provided on the lower guide rail, and empty tubes are sleeved on the lower trays. The material handling and reversing mechanism is used to transfer the full yarn tubes at the upper tray to the lower tray and to transfer the empty tubes at the lower tray to the upper tray. The material handling and reversing mechanism includes a repositioning component for adjusting the positions of empty tubes and full yarn tubes, and a displacement component for driving the repositioning component to move.

[0006] Preferably, the displacement assembly includes a fixed plate fixed to the lower side of the frame, a rotating rod rotatably connected to the fixed plate, a first motor fixed to the fixed plate and used to drive the rotating rod to rotate, a first elastic telescopic rod fixedly connected to the rotating rod, and a swing frame connected to the end of the first elastic telescopic rod away from the rotating rod.

[0007] Preferably, the swing frame includes a swing rod rotatably connected to the frame via a rotating rod, a swing seat fixedly connected to the swing rod, an abutment plate fixed on the swing seat and movably abutting against the upper and lower guide rails, a second elastic telescopic rod fixed on the upper and lower sides of the swing seat, and a slider disposed between the two second elastic telescopic rods. The slider is slidably disposed with the swing seat and movably connected to the first elastic telescopic rod.

[0008] Preferably, the switching assembly includes a connecting seat fixedly connected to the slider, two lead screws rotatably connected to the connecting seat, a second motor fixedly mounted on the connecting seat and used to drive the lead screws to rotate, a sleeve threadedly connected to each lead screw, and a first material picking assembly and a second material picking assembly respectively mounted on the two sleeves.

[0009] Preferably, the first material handling assembly includes a straight rod fixedly connected to one of the sleeves, a connecting plate fixedly connected to the straight rod, and a first yarn-holding cup equidistantly disposed on the connecting plate.

[0010] Preferably, the second material handling assembly includes a telescopic tube fixedly connected to another sleeve, a connecting rod fixedly connected to the movable end of the telescopic tube, and a second yarn-holding cup equidistantly arranged on the connecting rod. The connecting seat is provided with a track groove for the movement of the connecting rod.

[0011] Preferably, the track groove includes two side grooves, a clearance groove disposed in the middle of the two side grooves, and an inclined guide groove for connecting the end of the clearance groove and the end of the side groove.

[0012] Preferably, the first and second yarn-holding cups have the same structure, both including a fixing ring, a clamping airbag fixed in the fixing ring, and a top plate fixed on the top of the fixing ring. A third elastic telescopic rod is provided between the top plate and the fixing ring, and an air supply device connected to the clamping airbag is provided on the connecting seat.

[0013] Preferably, a support plate is fixedly connected to both the connecting plate and the connecting rod, and a pneumatic telescopic plate is fixedly installed on the support plate. The end of the pneumatic telescopic plate away from the support plate moves against the bottom of the full yarn tube or empty tube. The pneumatic telescopic plate is connected to the air supply equipment through an air pipe.

[0014] This invention also discloses a method for using a steel belt type collective doffing bobbin conveyor for a spinning frame, comprising the following steps: S1: The upper guide rail tray is filled with yarn tubes, and the lower guide rail tray is filled with empty tubes. The displacement component drives the transposition component to move. Control the operation of the first motor so that the output shaft of the first motor drives the rotating rod to rotate clockwise. The rotating rod drives the first elastic telescopic rod to rotate, so that the first elastic telescopic rod pushes the swing frame to flip around the rotating rod as the center through the slider, so that the abutment plate on the swing frame abuts and fits against the upper and lower guide rails. As the rotating rod continues to rotate, the first elastic telescopic rod applies a force to the slider, and the slider slides down along the swing seat. The first elastic telescopic rod is compressed, causing the slider to drive the connecting seat to move down. The first and second material picking components on the connecting seat move down at the same time. Align the first or second yarn gripping cup on the upper side with the full yarn tube, and align the second or first yarn gripping cup on the lower side with the empty tube. S2: The air supply device inflates the clamping airbag and pneumatic telescopic plate of the yarn-holding cup. The clamping airbag expands and grips the upper end of the tube, and the pneumatic telescopic plate extends to support the bottom of the tube. S3: Subsequently, the displacement component moves, the first motor controls the rotating rod to rotate in the opposite direction, the first elastic telescopic rod and the second elastic telescopic rod return to their original positions, and the connecting seat and the entire shifting component are lifted by the slider, so that the full yarn tube and the empty tube are removed from their respective trays simultaneously. S4: After grabbing the tube, as the rotating rod continues to rotate in the opposite direction, the swing frame swings outward to make room for the exchange. Then the second motor drives the lead screw to rotate, so that the two sleeves move towards each other with the tubes they have grabbed through the material picking assembly, directly completing the position exchange between the full yarn tube and the empty tube. S5: After the position exchange is completed, the first motor controls the rotating rod to rotate clockwise again, the displacement component drives the swing frame to approach and fit the frame, and causes the shifting component to descend, inserting the empty tube into the upper tray spindle and the full yarn tube into the lower tray spindle. Then the pneumatic system depressurizes, the yarn cup releases the tube, and the pneumatic telescopic plate no longer supports the bottom of the tube. S6: After the tube is inserted, the steel belt drive system starts, transporting the tray full of yarn tubes on the lower guide rail to the collection point, and transporting the new empty tube to the standby position to prepare for the next doffing cycle.

[0015] As can be seen from the above technical solutions, the present invention has the following beneficial effects: 1. In this invention, by setting up a material picking and reversing mechanism, the synchronous picking and exchanging of full yarn tubes and empty tubes is realized. The synchronous operation and high degree of automation greatly reduce the single yarn doffing time, improve equipment operating efficiency, and effectively save labor. It is especially suitable for the high-efficiency production needs of long machines and multi-spindle positions. 2. In this invention, by controlling the operation of the first motor, the output shaft of the first motor drives the rotating rod to rotate, and the rotating rod drives the first elastic telescopic rod to rotate. The first elastic telescopic rod pushes the swing frame to rotate around the rotating rod through the slider, so that the abutment plate on the swing frame abuts and fits against the upper guide rail and the lower guide rail. This places the first material picking component and the second material picking component on the upper side of the full yarn tube or the empty tube, respectively, so that the material picking component is aligned and matched with the full yarn tube and the empty tube, preparing for the subsequent replacement of the full yarn tube and the empty tube. 3. In this invention, after the swing plate abuts against the guide rail via the abutment plate, as the rotating rod continues to rotate, the first elastic telescopic rod applies a force to the slider, the slider slides down along the swing seat, the first elastic telescopic rod is compressed, causing the slider to drive the connecting seat to move down, and the first and second material picking components on the connecting seat move down at the same time, so that the yarn holding cup of the material picking component is sleeved on the full yarn tube and the empty tube. Only the first motor needs to be driven to run to realize the displacement of the yarn holding cup and the sleeve of the tube body, which is simple and quick to operate; 4. In this invention, after the yarn-holding cup is fitted onto the upper end of the tube, the air supply device is controlled to operate, causing the clamping airbag to expand and grip the upper end of the tube. The pneumatic telescopic plate extends to support the bottom of the tube. The dual mechanism of upper gripping and lower lifting ensures that the tube remains vertically stable during lifting and transportation, avoiding loosening or slippage that may occur with single-point gripping, ensuring the stability of the exchange between full and empty tubes, and reducing the failure rate. 5. In this invention, after the full yarn tube and the empty tube are moved out, the displacement component drives the switching component to rotate around the rotating rod, so that the swing frame moves away from the machine frame, making room for the subsequent switching component and avoiding collision with the machine frame when the tube moves. After the swing frame is reset, the second motor on the connecting seat is controlled to run, so that the lead screw rotates and the two sleeves move axially along the lead screws connected by their respective threads. The first picking component and the second picking component move relative to each other, so that the empty tube originally placed on the lower side moves up to the upper guide rail with one of the picking components, and the full yarn tube originally placed on the lower side moves down to the lower guide rail with the other picking component, thus completing the position exchange of the full yarn tube and the empty tube. This changes the traditional sequential operation mode, improves the operating efficiency of the equipment, and effectively saves labor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 The right view; Figure 3 This is a schematic diagram of the material handling and reversing mechanism of the present invention; Figure 4 This is a schematic diagram of the external structure of the swing frame of the present invention. Figure 1 ; Figure 5 For the present invention Figure 4 Enlarged structural diagram of section A in the middle; Figure 6 This is a schematic diagram of the external structure of the swing frame of the present invention. Figure 2 ; Figure 7 For the present invention Figure 6 Enlarged structural diagram of section B; Figure 8 This is a schematic diagram of the external structure of the upper guide rail of the present invention; Figure 9 This is a schematic diagram of the external structure of the connector of the present invention; Figure 10 This is a schematic diagram of the external structure of the swing seat of the present invention; Figure 11 This is a schematic cross-sectional view of the first yarn-holding cup of the present invention.

[0017] In the diagram: 1. Frame; 2. Upper guide rail; 201. Upper tray; 3. Full yarn tube; 4. Lower guide rail; 401. Lower tray; 5. Empty tube; 6. Fixing plate; 601. Rotating rod; 602. First motor; 603. First elastic telescopic rod; 604. Swing frame; 6041. Swing rod; 6042. Swing seat; 6043. Abutment plate; 6044. Second elastic telescopic rod; 6045. Slider; 6046. Rotating rod; 7. Connecting seat; 70 1. Lead screw; 702. Second motor; 703. Sleeve; 8. Straight rod; 801. Connecting plate; 802. First yarn gripper; 9. Telescopic tube; 901. Connecting rod; 902. Second yarn gripper; 10. Track groove; 1001. Side groove; 1002. Clearance groove; 1003. Inclined guide groove; 11. Fixing ring; 111. Clamping airbag; 112. Top plate; 113. Third elastic telescopic rod; 12. Support plate; 121. Pneumatic telescopic plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 This embodiment provides a steel belt type collective doffing bobbin conveying device for a spinning frame, including a frame 1, an upper guide rail 2, a lower guide rail 4, and a material picking and reversing mechanism; the upper guide rail 2 is fixed to the upper side of the frame 1, and a plurality of upper trays 201 driven by a steel belt are arranged on the upper guide rail 2, with full yarn tubes 3 sleeved on the upper trays 201; the lower guide rail 4 is fixed to the lower side of the frame 1, and a plurality of lower trays 401 driven by a steel belt are arranged on the lower guide rail 4, with empty tubes 5 sleeved on the lower trays 401; the material picking and reversing mechanism is used to pick up the full yarn at the upper trays 201. The tube 3 is transferred to the lower tray 401, and the empty tube 5 at the lower tray 401 is transferred to the upper tray 201; the steel belt is driven by a drive device, which is existing technology and will not be described in detail here. The upper tray 201 and the lower tray 401 are straddled on the guide rail by sliding seats at their bottoms, which ensures stability and straightness during movement and effectively prevents the problem of trays easily rotating or tipping over in traditional designs; the material picking and reversing mechanism includes a repositioning component for adjusting the position of the empty tube 5 and the full yarn tube 3, and a displacement component for driving the displacement of the repositioning component; Specifically, a fully spun yarn tube 3 is placed on the upper tray 201 of the upper guide rail 2, and an empty tube 5 is placed on the lower tray 401 of the lower guide rail 4. The material handling and reversing mechanism is in the initial standby position. The displacement component is activated, driving the reversing component to flip and descend, so that the reversing component simultaneously grabs the fully spun yarn tube 3 on the upper side and the empty tube 5 on the lower side. Subsequently, the displacement component lifts and flips the reversing component. When the reversing component is lifted, the tubes of the fully spun yarn tube 3 and the empty tube 5 are disengaged from the tray. After the reversing component is flipped away from the frame 1 under the drive of the displacement component, the fully spun yarn tube 3 and the empty tube 5 are placed on the tray. The positions are swapped; then the displacement component drives the switching component to approach and descend towards the frame 1, inserting the original empty tube 5 into the spindle position of the upper guide rail 2, and placing the original full yarn tube 3 onto the spindle of the lower tray 401, completing the exchange of full yarn tube 3 and empty tube 5; it realizes the synchronous gripping and direct exchange of full yarn tube 3 and empty tube 5, eliminating the cumbersome process of moving the empty tube 5 to the intermediate storage station and then operating in steps in the traditional method, greatly improving the doffing efficiency, effectively saving labor, and is especially suitable for the high-efficiency production needs of long machines and multiple spindles.

[0022] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 8 and Figure 10 As a preferred technical solution in this embodiment, the displacement assembly includes a fixed plate 6 fixed to the lower side of the frame 1, a rotating rod 601 rotatably connected to the fixed plate 6, a first motor 602 fixed to the fixed plate 6 and used to drive the rotating rod 601 to rotate, a first elastic telescopic rod 603 fixedly connected to the rotating rod 601, and a swing frame 604 connected to the end of the first elastic telescopic rod 603 away from the rotating rod 601. Furthermore, the swing frame 604 includes a swing rod 6041 rotatably connected to the frame 1 via a rotating rod 6046, a swing seat 6042 fixedly connected to the swing rod 6041, an abutment plate 6043 fixed on the swing seat 6042 and movably abutting against the upper guide rail 2 and the lower guide rail 4, a second elastic telescopic rod 6044 fixed on the upper and lower sides of the swing seat 6042, and a slider 6045 disposed between the two second elastic telescopic rods 6044. The slider 6045 is slidably disposed with the swing seat 6042 and movably connected to the first elastic telescopic rod 603. Specifically, when the displacement component is working, it controls the operation of the first motor 602, causing the output shaft of the first motor 602 to drive the rotating rod 601 to rotate. The rotating rod 601 drives the first elastic telescopic rod 603 to rotate, causing the first elastic telescopic rod 603 to push the swing frame 604 to rotate around the rotating rod 6046 via the slider 6045. This causes the abutment plate 6043 on the swing frame 604 to abut and fit against the upper guide rail 2 and the lower guide rail 4, providing a solid positioning reference for the entire insertion and removal of the tube, ensuring that the yarn cup can be accurately aligned. The spindle center effectively solves the problem of swaying that may occur in traditional mechanisms due to excessively long cantilever arms. As the rotating rod 601 continues to rotate, the first elastic telescopic rod 603 applies a force to the slider 6045, causing the slider 6045 to slide down along the swing seat 6042. The first elastic telescopic rod 603 is compressed, while the second elastic telescopic rod 6044 extends and retracts freely, causing the slider 6045 to drive the shifting component to move downward. The shifting component is directly fitted onto the upper end of the tubes of the full yarn tube 3 and the empty tube 5, preparing for the subsequent shifting work of the full yarn tube 3 and the empty tube 5.

[0023] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10 As a preferred technical solution in this embodiment, the first material taking component includes a straight rod 8 fixedly connected to one of the sleeves 703, a connecting plate 801 fixedly connected to the straight rod 8, and a first yarn holding cup 802 equidistantly arranged on the connecting plate 801. Furthermore, the second material handling assembly includes a telescopic tube 9 fixedly connected to another sleeve 703, a connecting rod 901 fixedly connected to the movable end of the telescopic tube 9, and a second yarn-holding cup 902 equidistantly arranged on the connecting rod 901. The connecting seat 7 is provided with a track groove 10 for the movement of the connecting rod 901. Furthermore, the track groove 10 includes two side grooves 1001, a clearance groove 1002 disposed in the middle of the two side grooves 1001, and an inclined guide groove 1003 for connecting the end of the clearance groove 1002 with the end of the side groove 1001; the design of the clearance groove 1002 solves the mechanical collision problem that may occur during the repositioning of the two rows of yarn gripping cups, and provides forced guidance for the movement of the second material picking component, making its movement trajectory precise and controllable; Specifically, after the abutment plate 6043 on the swing frame 604 abuts and fits against the upper guide rail 2 and the lower guide rail 4, the first or second material picking component on the upper side is positioned above the full yarn tube 3, and the second or first material picking component on the lower side is positioned above the empty tube 5. As the slider 6045 slides down along the swing seat 6042, the slider 6045 drives the shifting component to move down, and the first and second material picking components on the connecting seat 7 move down simultaneously, so that the first and second material picking components are both sleeved on the upper end of the tube body of the full yarn tube 3 or the empty tube 5. By controlling the operation of the first yarn gripping cup 802 and the second yarn gripping cup 902, the yarn gripping cups clamp the upper end of the tube body. Then, the displacement component drives the shifting component to move. The shifting component first moves with the slider 6042. 45. Move upward along the swing seat 6042 to separate the full yarn tube 3 and the empty tube 5 from the tray spindle. Then, the connecting seat 7 rotates with the swing seat 6042 around the rotating rod 6046, so that the swing seat 6042 drives the shifting component away from the frame 1, avoiding collision between the shifting component and the frame 1 when shifting the full yarn tube 3 and the empty tube 5. After the shifting component moves away from the frame 1, control the second motor 702 on the connecting seat 7 to run, so that the lead screw 701 rotates. The two sleeves 703 move axially along the lead screw 701 connected to their respective threads. The first picking component and the second picking component move relative to each other, so that the empty tube 5, which was originally placed on the lower side, moves upward to the upper guide rail 2 with one of the picking components, and the full yarn tube 3, which was originally placed on the upper side, moves downward to the lower guide rail 4 with the other picking component. The shifting component is controlled again to move closer to the frame 1. After the abutment plate 6043 abuts against the guide rail, the shifting component moves downward relative to the swing seat 6042, inserting the empty tube 5 into the upper tray 201 spindle and the full yarn tube 3 into the lower tray 401 spindle. This achieves synchronous gripping and exchange of the full yarn tube 3 and the empty tube 5. The synchronous operation and high degree of automation greatly reduce the single yarn doffing time and improve the operating efficiency of the equipment.

[0024] Reference Figure 11As a preferred technical solution in this embodiment, the first yarn-holding cup 802 and the second yarn-holding cup 902 have the same structure, both including a fixing ring 11, a clamping airbag 111 fixed in the fixing ring 11, and a top plate 112 fixed on the top of the fixing ring 11. A third elastic telescopic rod 113 is provided between the top plate 112 and the fixing ring 11. When the yarn tube 3 or empty tube 5 is placed under the yarn-holding cup, the top plate 112 at the top of the fixing ring 11 can effectively press the tube body down onto the spindle. The setting of the third elastic telescopic rod 113 can prevent the top plate 112 from excessively squeezing the tube body. An air supply device connected to the clamping airbag 111 is provided on the connecting seat 7. The fixing ring 11 is usually fixed to the connecting plate 8 by means of threads or buckles. On 01 or connecting rod 901, the main function is to provide stable support and accommodate the clamping airbag 111. When the air supply device on the connecting seat 7 fills it with compressed air, the clamping airbag 111 will expand outward evenly, opening from the inside and gripping the inner wall of the yarn tube. When release is required, simply depressurize, and the clamping airbag 111 will contract and return to its original position. This pneumatic clamping method can provide uniform gripping force and effectively avoid hard scratches on the yarn tube wall. The air supply device is the core system that provides stable and clean compressed air to the pneumatic components (such as the clamping airbag 111 holding the yarn cup) in the collective doffing device of the spinning machine. This is existing technology, and an air compressor or other equipment that can supply air to the clamping airbag 111 can be used.

[0025] Reference Figure 6 and Figure 7 As a preferred technical solution in this embodiment, a support plate 12 is fixedly connected to both the connecting plate 801 and the connecting rod 901. A pneumatic telescopic plate 121 is fixedly installed on the support plate 12. The end of the pneumatic telescopic plate 121 away from the support plate 12 is in motion abutting against the bottom of the full yarn tube 3 or the empty tube 5. The pneumatic telescopic plate 121 is connected to the air supply equipment through an air pipe. Specifically, the pneumatic telescopic plate 121 is a pneumatic actuator integrated into the material handling assembly. It can be equipped with a piston and a reset spring. Essentially, it is a bottom lifting device that works in conjunction with the top gripping yarn cup. Its power source and the clamping airbag 111 of the yarn cup come from the same air supply equipment and are connected through an air pipe. The control system commands the inflation and deflation of the airbag. The dual mechanism of upper gripping and lower lifting ensures that the tube remains vertically stable during lifting and transportation, avoiding loosening or slippage that may occur with single-point gripping. This ensures the stability of the exchange between the full yarn tube 3 and the empty tube 5 and reduces the failure rate.

[0026] This invention also discloses a method for using a steel belt type collective doffing bobbin conveyor for a spinning frame, comprising the following steps: S1: The tray of the upper guide rail 2 is filled with yarn tubes 3, and the tray of the lower guide rail 4 is filled with empty tubes 5. The displacement component drives the transposition component to move. Control the first motor 602 to run, so that the output shaft of the first motor 602 drives the rotating rod 601 to rotate clockwise. The rotating rod 601 drives the first elastic telescopic rod 603 to rotate, so that the first elastic telescopic rod 603 pushes the swing frame 604 to flip around the rotating rod 6046 through the slider 6045, so that the abutting plate 6043 on the swing frame 604 abuts and fits against the upper guide rail 2 and the lower guide rail 4. As the rotating rod 601 continues to rotate, the first elastic telescopic rod 603 applies a force to the slider 6045, and the slider 6045 slides down along the swing seat 6042. The first elastic telescopic rod 603 is compressed, causing the slider 6045 to drive the connecting seat 7 to move down. The first material picking component and the second material picking component on the connecting seat 7 move down at the same time. Align the first yarn gripping cup 802 or the second yarn gripping cup 902 on the upper side with the full yarn tube 3, and align the second yarn gripping cup 902 or the first yarn gripping cup 802 on the lower side with the empty tube 5. S2: The air supply device inflates the clamping airbag 111 and the pneumatic telescopic plate 121 of the yarn cup. The clamping airbag 111 expands and grips the upper end of the tube body, and the pneumatic telescopic plate 121 extends to support the bottom of the tube body. S3: Subsequently, the displacement component moves, the first motor 602 controls the rotating rod 601 to rotate in the opposite direction, the first elastic telescopic rod 603 and the second elastic telescopic rod 6044 return to their original positions, and the connecting seat 7 and the entire shifting component are driven to rise through the slider 6045, so that the full yarn tube 3 and the empty tube 5 are simultaneously removed from their respective trays. S4: After grabbing the tube body, as the rotating rod 601 continues to rotate in the opposite direction, the swing frame 604 swings outward to make room for the exchange. Then the second motor 702 drives the lead screw 701 to rotate, so that the two sleeves 703 move towards each other with the tube bodies they have grabbed through the material picking component, directly completing the position exchange between the full yarn tube 3 and the empty tube 5. S5: After the position exchange is completed, the first motor 602 controls the rotating rod 601 to rotate clockwise again, the displacement component drives the swing frame 604 to approach and fit against the frame 1, and causes the position exchange component to descend, inserting the empty tube 5 into the upper tray 201 spindle and the full yarn tube 3 into the lower tray 401 spindle. Then the pneumatic system is depressurized, the yarn cup is released from the tube body, and the pneumatic telescopic plate 121 no longer supports the bottom of the tube body. S6: After the tube is inserted, the steel belt drive system starts, transporting the tray full of yarn tubes 3 on the lower guide rail 4 to the collection point, and transporting the new empty tube 5 to the standby position to prepare for the next doffing cycle.

[0027] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0028] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A steel belt type collective doffing bobbin conveying device for a spinning frame, comprising a frame (1), characterized in that, Also includes: Upper guide rail (2), the upper guide rail (2) is fixed on the upper side of the frame (1), and the upper guide rail (2) is provided with a number of upper trays (201) driven by steel belts, and the upper trays (201) are fitted with full yarn tubes (3). The lower guide rail (4) is fixed on the lower side of the frame (1). The lower guide rail (4) is provided with a number of lower trays (401) driven by steel belts. The lower trays (401) are fitted with empty tubes (5). And a material picking and reversing mechanism, which is used to transfer the full yarn tube (3) at the upper tray (201) to the lower tray (401) and to transfer the empty tube (5) at the lower tray (401) to the upper tray (201); The material handling and reversing mechanism includes a reversing component for adjusting the position of the empty tube (5) and the full yarn tube (3) and a displacement component for driving the displacement of the reversing component. The displacement assembly includes a fixed plate (6) fixed to the lower side of the frame (1), a rotating rod (601) rotatably connected to the fixed plate (6), a first motor (602) fixed to the fixed plate (6) and used to drive the rotating rod (601) to rotate, a first elastic telescopic rod (603) fixedly connected to the rotating rod (601), and a swing frame (604) connected to the end of the first elastic telescopic rod (603) away from the rotating rod (601). The swing frame (604) includes a swing rod (6041) rotatably connected to the frame (1) via a rotating rod (6046), a swing seat (6042) fixedly connected to the swing rod (6041), an abutment plate (6043) fixed on the swing seat (6042) and movably abutting against the upper guide rail (2) and the lower guide rail (4), a second elastic telescopic rod (6044) fixed on the upper and lower sides of the swing seat (6042), and a slider (6045) disposed between the two second elastic telescopic rods (6044). The slider (6045) is slidably disposed with the swing seat (6042) and movably connected to the first elastic telescopic rod (603). The shifting assembly includes a connecting seat (7) fixedly connected to the slider (6045), two lead screws (701) rotatably connected to the connecting seat (7), a second motor (702) fixedly mounted on the connecting seat (7) and used to drive the lead screws (701) to rotate, a sleeve (703) threadedly connected to each of the lead screws (701), and a first material picking assembly and a second material picking assembly respectively mounted on the two sleeves (703); The first material handling assembly includes a straight rod (8) fixedly connected to one of the sleeves (703), a connecting plate (801) fixedly connected to the straight rod (8), and a first yarn-holding cup (802) equidistantly arranged on the connecting plate (801).

2. The steel belt type collective doffing bobbin conveyor device for a spinning frame according to claim 1, characterized in that, The second material handling assembly includes a telescopic tube (9) fixedly connected to another sleeve (703), a connecting rod (901) fixedly connected to the movable end of the telescopic tube (9), and a second yarn-holding cup (902) equidistantly arranged on the connecting rod (901). The connecting seat (7) is provided with a track groove (10) for the movement of the connecting rod (901).

3. The steel belt type collective doffing bobbin conveyor for a spinning frame according to claim 2, characterized in that, The track groove (10) includes two side grooves (1001), a clearance groove (1002) disposed in the middle of the two side grooves (1001), and an inclined guide groove (1003) for connecting the end of the clearance groove (1002) and the end of the side groove (1001).

4. The steel belt type collective doffing bobbin conveyor for a spinning frame according to claim 3, characterized in that, The first yarn gripping cup (802) and the second yarn gripping cup (902) have the same structure, both including a fixing ring (11), a clamping airbag (111) fixed in the fixing ring (11), and a top plate (112) fixed on the top of the fixing ring (11). A third elastic telescopic rod (113) is provided between the top plate (112) and the fixing ring (11). An air supply device connected to the clamping airbag (111) is provided on the connecting seat (7).

5. The steel belt type collective doffing bobbin conveyor for a spinning frame according to claim 4, characterized in that, A support plate (12) is fixedly connected to both the connecting plate (801) and the connecting rod (901). A pneumatic telescopic plate (121) is fixedly installed on the support plate (12). The end of the pneumatic telescopic plate (121) away from the support plate (12) is in contact with the bottom of the full yarn tube (3) or the empty tube (5). The pneumatic telescopic plate (121) is connected to the air supply equipment through an air pipe.

6. A method of using the steel belt type collective doffing bobbin conveyor device for a spinning frame according to claim 5, characterized in that, Includes the following steps: S1: The tray of the upper guide rail (2) is filled with yarn tubes (3), and the tray of the lower guide rail (4) is filled with empty tubes (5). The displacement component drives the shifting component to move. Control the first motor (602) to run, so that the output shaft of the first motor (602) drives the rotating rod (601) to rotate clockwise. The rotating rod (601) drives the first elastic telescopic rod (603) to rotate, so that the first elastic telescopic rod (603) pushes the swing frame (604) to flip around the rotating rod (6046) through the slider (6045), so that the abutment plate (6043) on the swing frame (604) abuts and fits against the upper guide rail (2) and the lower guide rail (4); As the rotating rod (601) continues to rotate, the first elastic telescopic rod (603) applies a force to the slider (6045), and the slider (6045) slides down along the swing seat (6042). The first elastic telescopic rod (603) is compressed, causing the slider (6045) to drive the connecting seat (7) to move down. The first material picking component and the second material picking component on the connecting seat (7) move down at the same time. Align the first yarn grip cup (802) or the second yarn grip cup (902) on the upper side with the full yarn tube (3), and align the second yarn grip cup (902) or the first yarn grip cup (802) on the lower side with the empty tube (5). S2: The air supply device inflates the clamping airbag (111) and the pneumatic telescopic plate (121) of the yarn cup. The clamping airbag (111) expands and grips the upper end of the tube body, and the pneumatic telescopic plate (121) extends to support the bottom of the tube body. S3: Subsequently, the displacement component moves, the first motor (602) controls the rotating rod (601) to rotate in the opposite direction, the first elastic telescopic rod (603) and the second elastic telescopic rod (6044) return to their original positions, and the connecting seat (7) and the entire shifting component are driven to rise through the slider (6045), so that the full yarn tube (3) and the empty tube (5) are simultaneously removed from their respective trays. S4: After grabbing the tube body, as the rotating rod (601) continues to rotate in the opposite direction, the swing frame (604) swings outward to make room for the exchange. Then the second motor (702) drives the lead screw (701) to rotate, so that the two sleeves (703) move towards each other with the tube body they grabbed through the material picking assembly, directly completing the position exchange between the full yarn tube (3) and the empty tube (5). S5: After the position exchange is completed, the first motor (602) controls the rotating rod (601) to rotate clockwise again, the displacement component drives the swing frame (604) to approach and fit against the frame (1), and causes the position exchange component to descend, inserting the empty tube (5) into the upper tray (201) spindle and the full yarn tube (3) into the lower tray (401) spindle. Then the pneumatic system depressurizes, the yarn cup releases the tube body, and the pneumatic telescopic plate (121) no longer supports the bottom of the tube body. S6: After the tube is inserted, the steel belt drive system starts, transports the tray full of yarn tubes (3) on the lower guide rail (4) to the collection point, and transports the new empty tube (5) to the standby position to prepare for the next doffing cycle.

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