A self-circulating doffing and conveying device for roving frame

Abstract

The present application relates to the field of textile engineering and discloses a self-circulating doffing and conveying device for a roving frame, which includes a bobbin picking and placing mechanism, an empty-full converter, and an empty tube conveying mechanism. The bobbin picking and placing mechanism includes a lifting member, a doffing frame, and a grabbing member. The doffing frame is slidably connected to the roving frame, the lifting member is connected to the roving frame, the lifting member is connected to the doffing frame to drive the doffing frame to rise and fall, the grabbing member is connected to the doffing frame, the grabbing member is used to grab the full bobbin on the roving frame and insert the empty bobbin onto the roving frame; the empty tube conveying mechanism is used to convey empty and full yarns, the empty-full converter is arranged between the doffing frame and the empty tube conveying mechanism, and the empty-full converter is used to exchange the full yarn on the grabbing member with the empty tube on the empty tube conveying mechanism. The present application has the effect of realizing automatic doffing of the roving frame, reducing the workload of personnel, and improving the working efficiency of the roving frame.

Description

Technical Field

[0001] The present application relates to the field of textile engineering, and in particular to a self-circulating doffing and conveying device for a roving frame. Background Art

[0002] A roving frame is a spinning machine that turns fiber sliver into roving. It can be categorized by the number of roving spindles, such as 120, 108, and 96. The roving frame first processes the combined sliver into rovings of varying counts and twists. These rovings are then wound onto bobbins placed on the lower spindle bar. Once the bobbins are full, they are removed from the roving frame and replaced with empty bobbins to continue production.

[0003] At present, the replacement of existing bobbins is mostly done manually. After the bobbins on the roving frame are full of yarn, the staff will take out the full yarn one by one and place them in the yarn car, and then insert the empty bobbins one by one into the roving frame. The whole process of doffing yarn requires the staff to bend over to operate, which is labor-intensive and has low work efficiency. Summary of the Invention

[0004] In order to alleviate the problem of low efficiency in manually replacing bobbins on a roving frame, the present application provides a self-circulating doffing and conveying device for a roving frame.

[0005] The present application provides a self-circulating doffing and conveying device for a roving frame, which adopts the following technical solution:

[0006] A self-circulating yarn-docking and conveying device for a roving frame, comprising a bobbin picking and placing mechanism, an empty-full converter and an empty tube conveying mechanism, the bobbin picking and placing mechanism comprising a lifting member, a doffing frame and a grabbing member, the doffing frame being slidably connected to the roving frame, the lifting member being connected to the roving frame, the lifting member being connected to the doffing frame to drive the doffing frame to rise and fall, the grabbing member being connected to the doffing frame, the grabbing member being used to grab the full yarn bobbins on the roving frame and inserting the empty bobbins onto the roving frame; the empty tube conveying mechanism being used to convey empty tubes and full yarns, the empty-full converter being arranged between the doffing frame and the empty tube conveying mechanism, the empty-full converter being used to exchange the full yarn on the grabbing member with the empty tube on the empty tube conveying mechanism.

[0007] By adopting the above technical solution, when the empty tubes on the roving frame are full of yarn, the roving frame dragon bar automatically falls to the ground and moves out, and then the doffing frame is driven down by the lifting part. The grabbing part on the doffing frame grabs the full yarn and leaves the empty tube on the roving frame dragon bar, and then the dragon bar is driven back to its position and the roving frame can be put into operation immediately. After the full yarn rises under the drive of the doffing frame, it will be moved to the empty tube conveying mechanism under the action of the empty-full converter, and at the same time, the empty tube on the empty tube conveying mechanism is moved to the doffing frame, waiting for the next batch of full yarns to be doffed, thereby realizing automatic doffing of the roving frame, reducing the workload of the staff and improving the working efficiency of the roving frame.

[0008] Preferably, the grabbing member includes a rotating chain and a plurality of first hanging spindles, each of the first hanging spindles is fixedly connected to the rotating chain, the number of the first hanging spindles is twice the number of full yarns on the roving frame, and empty tubes are arranged at intervals on the plurality of first hanging spindles.

[0009] By adopting the above technical solution, empty tubes are installed at intervals on the first hanging spindle. When the doffing frame is driven to descend, the first hanging spindle without the empty tube is inserted into the full yarn to lift the full yarn, and then the rotating chain is driven to rotate to move the empty tube to the installation position of the roving frame. Then, the doffing frame is driven to move downward to insert the empty tube on the roving frame. Then, the full yarn on the roving frame can be replaced with the empty tube at one time, thereby improving the doffing efficiency of the full yarn.

[0010] Preferably, the empty tube conveying mechanism includes a bracket, a circulating track and a walking chain, the circulating track is fixedly connected to the bracket, the bracket is used to support the circulating track, the walking chain is slidably connected in the circulating track, a plurality of second hanging spindles are fixedly connected to the walking chain, and the walking chain is used to drive the full yarn tubes into the storage position.

[0011] By adopting the above technical solution, the circular track is used to guide the movement of the walking chain. After the second hanging spindle grabs the empty tube, the walking chain is controlled to move along the circular track to drive multiple empty tubes to move. After moving to a position close to the empty-full converter, the empty tube on the walking chain and the full yarn on the rotating chain are exchanged by using the empty-full converter, and then the walking chain drives the full yarn into the storage position.

[0012] Preferably, the empty-full converter includes a first motor, a first cylinder and a support seat, the first motor is fixedly connected to the coarse sand machine, the cylinder body of the first cylinder is rotatably connected to one side of the coarse yarn machine, the first motor is transmission-connected to the first cylinder to drive the first cylinder to rotate, the support seat is fixedly connected to the piston rod of the first cylinder, two support spindles are provided on the support seat, and the support seat is used to drive the two support spindles to exchange positions.

[0013] By adopting the above technical solution, one of the supporting spindles is aligned with a full yarn on the rotating chain, and the other supporting spindle is aligned with the empty tube on the walking chain. Then the first cylinder drives the supporting seat to move upward so that the two supporting spindles are inserted into the bottom of the full yarn and the empty tube respectively. The full yarn and the empty tube are removed from the first hanging spindle and the second hanging spindle respectively. Then the first motor drives the supporting seat to rotate so that the positions of the full yarn and the empty tube are exchanged. Then the full yarn is inserted into the second hanging spindle, and the empty tube is inserted into the first hanging spindle. Repeat the above process to realize the empty and full exchange.

[0014] Preferably, a plurality of storage rails are fixedly connected to the bracket, a walking chain is slidably connected to each of the storage rails, and a rail switching mechanism is provided between the plurality of storage rails and the circulation rail, and the rail switching mechanism controls the circulation rail to be connected to any one of the storage rails.

[0015] By adopting the above technical solution, a walking chain is set on each storage track. After the roving frame is full of yarn once, the track control mechanism drives one of the storage tracks to dock with the circulation track, and then the walking chain on the storage track runs on the circulation track, so that the empty tube on the walking chain is exchanged with the full yarn on the rotating chain, and then the walking chain drives the exchanged full yarn to move to the storage track for storage. The circulation track is docked with the storage track one by one, so that the full yarn produced on the roving frame can be stored.

[0016] Preferably, a material unloading track is fixedly connected to the bracket, and the track switching mechanism controls the material unloading track to be connected to any one of the storage tracks.

[0017] By adopting the above technical solution, according to production needs, when full yarn is needed in the subsequent process, the track control mechanism controls the unloading track to dock with the storage track where full yarn is stored, and then the walking chain on the storage track moves into the unloading track, and the yarn picking area is carried out along the unloading track. Then the staff picks the required full yarn and pushes the empty tube onto the chain. After picking, the walking chain moves back and transports the empty tube back to the storage track for use.

[0018] Preferably, two pressure feedback elements are provided on the supporting seat, and the two pressure feedback elements are provided in one-to-one correspondence with the two supporting spindles. The supporting spindle is fixedly connected to the pressure feedback element corresponding to itself, and the pressure feedback element is electrically connected to an external controller. An empty pipe replenishing mechanism is provided on the bracket, and the empty pipe replenishing mechanism is electrically connected to an external controller. When the pressure feedback element detects an empty pipe, the empty pipe on the empty pipe replenishing mechanism will be plugged into the corresponding supporting spindle.

[0019] By adopting the above technical solution, the pressure feedback element is used to detect the receiving pressure of the supporting spindle. When the cylinder drives the receiving plate to move up to receive the full yarn and the empty tube, if there is no empty tube hanging on the second hanging spindle at the corresponding position at this time, the pressure feedback element detects that the pressure has not changed. Then the controller can promptly control the supporting spindle on the supporting seat to rotate to the empty tube supplement position, so that the empty tube supplement mechanism can insert the empty tube it hangs on the supporting spindle, realize the supplement of the empty tube on the supporting spindle, and thus ensure the empty and full conversion on the rotating chain, and reduce the possibility of the rotating chain falling after the empty and full rotation, thereby ensuring the normal operation of the roving machine.

[0020] Preferably, the empty pipe replenishing mechanism includes a power member, a rotating disk and a plurality of third hanging bobbins, the rotating disk is rotatably connected to the bracket, the power member is connected to the bracket, the power member is connected to the rotating disk to drive the rotating disk to rotate, and the plurality of third hanging bobbins are fixedly connected to the rotating disk, and the rotating disk is used to drive the third hanging bobbins to align and position with the supporting bobbins.

[0021] By adopting the above technical solution, when driving the supporting spindle to move up to receive the empty pipe, the first motor is started again to drive the supporting spindle to rotate to the bottom of the third hanging spindle, and then the empty pipe on the third hanging spindle is received, and then the empty pipe can be inserted into the first hanging spindle on the rotating chain; utilizing the rotation setting of the rotating disk, after the empty pipe on a third hanging spindle is received by the receiving spindle, the rotating disk is driven to rotate to move the empty pipe on the next third hanging spindle to the receiving position.

[0022] Preferably, two sliding blocks are slidably connected to the support seat, a bidirectional cylinder is fixedly connected to the support seat, the two sliding blocks are respectively fixedly connected to the piston rods of the bidirectional cylinder, the two pressure feedback elements are arranged in a one-to-one correspondence with the two sliding blocks, and the pressure feedback elements are fixedly connected to their corresponding sliding blocks.

[0023] By adopting the above technical solution, the two sliding blocks are driven to slide by a bidirectional cylinder to drive the supporting spindles on the pressure feedback element to move, so that the empty tubes and full yarns on the two supporting spindles move in the direction of approaching or moving away from each other. After the empty tubes and full yarns are taken over, the bidirectional cylinder drives the empty tubes and full yarns to move in the direction of approaching each other, and then drives the supporting seat to rotate, thereby reducing the possibility of collision of the empty tubes.

[0024] In summary, this application has at least the following beneficial technical effects:

[0025] 1. When doffing the roving frame, the lifting member is used to drive the doffing frame downward, so that the grabbing member grabs the full yarn and leaves the empty tube on the roving frame rib. The rib is then driven back to its original position, and the roving frame can immediately start operation. After the full yarn is driven by the doffing frame, it will be moved to the empty tube conveying mechanism under the action of the empty-full converter. At the same time, the empty tube on the empty tube conveying mechanism is moved to the doffing frame, waiting for the next batch of full yarn to be doffed. This realizes automatic doffing of the roving frame, reduces the workload of the staff, and improves the working efficiency of the roving frame.

[0026] 2. By setting multiple circulating tracks on the bracket, after the full yarn on the roving frame is transferred to the walking chain, the walking chain drives the coarse sand back to the circulating track, and then stores it on the circulating track. When the roving is needed in the subsequent process, the roving can be moved out, thereby improving the flexibility of roving use;

[0027] 3. By setting a feeding track on the bracket, when the subsequent process needs to use full yarn, the track control mechanism controls the feeding track to dock with the storage track where full yarn is stored, and then the walking chain on the storage track moves into the feeding track, and the yarn picking area is carried out along the feeding track. Then the staff picks the full yarn required and pushes the empty tube onto the chain. After picking, the walking chain moves back and transports the empty tube back to the storage track for standby use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0029] Figure 2 This is a schematic diagram of the structure of the storage track in Example 1 of the present application;

[0030] Figure 3 This is a schematic structural diagram of the bobbin taking and placing mechanism in Example 1 of the present application;

[0031] Figure 4 This is a schematic structural diagram of the grabbing member in Example 1 of the present application;

[0032] Figure 5 This is a schematic structural diagram of the walking chain in Example 1 of the present application;

[0033] Figure 6 Schematic diagram of the structure of the empty-full converter in Example 1 of the present application;

[0034] Figure 7 is a structural diagram of the docking member in Example 1 of the present application;

[0035] Figure 8 Schematic diagram of the structure of the empty-full converter in Example 2 of the present application;

[0036] Figure 9This is a schematic structural diagram of the hollow tube replenishing mechanism in Example 2 of the present application;

[0037] Figure 10 This is a structural diagram of the bidirectional cylinder in Example 2 of the present application.

[0038] Reference numerals: 100, bobbin taking and placing mechanism; 110, doffing frame; 120, lifting member; 121, electric push cylinder; 130, grabbing member; 131, driving motor; 132, sprocket; 133, rotating chain; 134, first hanging spindle; 200, empty tube conveying mechanism; 210, circulating track; 220, walking chain; 230, second hanging spindle; 240, driving member; 241, power motor; 242, driving wheel; 300, empty and full conversion Device; 310, first motor; 320, first cylinder; 330, supporting seat; 340, supporting ingot; 350, pressure feedback element; 360, sliding block; 370, bidirectional cylinder; 400, storage track; 500, unloading track; 600, track docking mechanism; 610, docking part; 611, shift fork; 700, empty pipe replenishing mechanism; 710, power part; 711, second motor; 720, rotating disk; 730, third hanging ingot. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-10 This application is described in further detail.

[0040] The embodiment of the present application discloses a self-circulating doffing and conveying device for a roving frame.

[0041] Reference Figure 1 and Figure 2 A self-circulating doffing and conveying device for a roving frame includes a bobbin picking and placing mechanism 100, which includes a doffing frame 110 slidably connected to the roving frame. The doffing frame 110 slides in the vertical direction. A lifting member 120 is installed on the roving frame. In this embodiment, the lifting member 120 is two electric push cylinders 121. The two electric push cylinders 121 are both vertically arranged and fixedly connected to the roving frame. The two electric push cylinders 121 are respectively located near the two ends of the roving frame in the length direction. The piston rod of each electric push cylinder 121 is fixedly connected to the doffing frame 110. A grabbing member 130 is installed on the doffing frame 110.

[0042] Reference Figure 2 、 Figure 3 and Figure 4The grabbing member 130 includes a driving motor 131 fixedly connected to the doffing frame 110. The doffing frame 110 is rotatably connected to two sprockets 132. The two sprockets 132 are respectively located near the two ends of the doffing frame 110. The driving motor 131 is coaxially connected to one of the sprockets 132. A rotating chain 133 is sleeved on the outer side of the two sprockets 132. The two sprockets 132 are connected by the rotating chain 133. A plurality of first hanging spindles 134 are fixedly connected to the rotating chain 133. The plurality of first hanging spindles 134 are arranged at intervals along the length direction of the rotating chain 133. Each first hanging spindle 134 is slidably connected to the doffing frame 110. The number of first hanging spindles 134 is twice the number of full yarns on the roving frame. Empty tubes are installed on the first hanging spindles 134 at intervals. The first hanging spindles 134 without empty tubes are arranged in a one-to-one correspondence with the plurality of full yarns on the roving frame.

[0043] Reference Figure 2 and Figure 5 A blank tube conveying mechanism 200 is provided on one side of the roving frame. The blank tube conveying mechanism 200 includes a bracket (not shown in the drawings of this embodiment). The bracket is fixedly connected to the ground. A circulating track 210 is fixedly connected to the bracket. A traveling chain 220 is slidably connected within the circulating track 210. A driving member 240 is mounted on the circulating track 210. The driving member 240 is used to drive the traveling chain 220 to slide. A plurality of second hanging spindles 230 are fixedly connected to the traveling chain 220. The plurality of second hanging spindles 230 are arranged at intervals along the length of the traveling chain 220. Each second hanging spindle 230 can be inserted into a blank tube.

[0044] Reference Figure 2 、 Figure 3 and Figure 6 , an empty and full exchanger is installed on the bracket, and the empty and full converter 300 is located between the yarn-doffer 110 and the circulating track 210. The empty and full converter 300 includes a first motor 310, and a fixed connecting frame on one side of the roving frame. The first motor 310 is fixedly connected to the fixed frame. The main shaft of the first motor 310 is vertically downward, and the main shaft of the first motor 310 is coaxially fixedly connected to the first cylinder 320. The first cylinder 320 is vertically arranged, and the first cylinder 320 is rotatably connected to the bracket. The piston rod of the first cylinder 320 faces the ground, and the piston rod of the first cylinder 320 is fixedly connected to the supporting seat 330. The supporting seat 330 is horizontally arranged, and two supporting spindles 340 are fixedly connected to the supporting seat 330. The two supporting spindles 340 are located near the two ends of the supporting seat 330, and each supporting spindle 340 is vertically arranged.

[0045] When the empty tube on the roving frame is full of yarn, the roving frame dragon bar drives the full yarn to be automatically moved out, and then the two electric push cylinders 121 drive the doffing frame 110 to move up and down, so that the first hanging spindle 134 without the empty tube on the doffing frame 110 is inserted into the full yarn to grab the full yarn, and then the doffing frame 110 is lifted, and the driving motor 131 is started to drive the chain to drive multiple first hanging spindles 134 to rotate, so that the empty tube on the first hanging spindle 134 is aligned with the roving frame, and then the doffing frame 110 is moved down to insert the empty tube on the roving frame, so that the full yarn on the roving frame can be replaced with an empty tube at one time. Then start the first motor 310, and use the first motor 310 to drive the supporting seat 330 to rotate so that the full yarn on the rotating chain 133 is exchanged with the empty tubes on the walking chain 220 one by one, and then exchanged to the empty tubes on the rotating chain 133 to wait for the next yarn dropping of the roving frame, and at the same time exchanged to the full yarn on the walking chain 220 to move with the walking chain 220 for unloading.

[0046] Reference Figure 1 and Figure 2 The bracket is fixedly connected to a plurality of storage rails 400, which are arranged side by side on the same horizontal plane. One end of each storage rail 400 is connected to the circulating rail 210. A rail docking mechanism 600 is installed on the circulating rail 210. The rail docking mechanism 600 drives the circulating rail 210 to dock with any storage rail 400 according to the working conditions. The bracket is fixedly connected to a feed rail 500, one end of which is connected to the circulating rail 210, and the rail docking mechanism 600 can control the feed rail 500 to dock with the circulating rail 210.

[0047] Reference Figure 2 、 Figure 5 and Figure 7The track docking mechanism 600 includes a plurality of docking members 610. Each storage track 400 and the connecting hammer of the circulating track 210 are installed with a docking member 610. The connection between the unloading track 500 and the circulating track 210 is also installed with a docking member 610. The structure of each docking member 610 is the same. This embodiment is described in detail by taking the docking member 610 installed on the storage track 400 as an example. The docking member 610 includes a rotating cylinder fixedly connected to the storage track 400. The piston rod of the rotating cylinder is fixedly connected to a shift fork 611. The shift fork 611 is rotated to connect Connected to the storage track 400, the rotating cylinder can drive the fork 611 to rotate so that the docking point between the storage track 400 and the circulation track 210 is connected or closed. When the fork 611 closes the connection between the storage track 400 and the circulation track 210, the walking chain 220 will continue to move along the circulation track 210; when the fork 611 rotates to connect the docking point between the storage track 400 and the circulation track 210, when the walking connection moves to the docking point between the storage track 400 and the circulation track 210, the walking chain 220 will enter the storage track 400 and walk under the guidance of the fork 611. When the yarn is dropped from the roving frame, the driving member 240 first drives the walking chain 220 on one of the storage rails 400 to move, so that it enters the circulating rail 210 and exchanges with the full yarn on the rotating chain 133, and then the walking chain 220 drives the full yarn back to the storage rail 400 for storage. As the roving frame runs, the walking chain 220 on the storage rail 400 is started one by one to move and realize the dropping and storage of the full yarn. When the subsequent process needs to use the full yarn, the corresponding storage rail 400 is controlled to be connected with the unloading rail 500, and then the walking chain 220 on the storage rail 400 is moved into the unloading rail 500, and the yarn picking area is carried out along the unloading rail 500. Then the staff picks the full yarn needed and pushes the empty tube onto the chain. After picking, the walking chain 220 moves back and transports the empty tube back to the storage rail 400 for use.

[0048] Reference Figure 2 and Figure 5, a plurality of driving members 240 are provided, distributed on the circulating track 210, the unloading track 500 and the plurality of storage tracks 400. This embodiment is described in detail with the driving member 240 on the circulating track 210 as an example. The driving member 240 includes two driving wheels 242, both of which are rotatably connected to the circulating track 210. The two driving wheels 242 are respectively located on both sides of the circulating track 210. The two driving wheels 242 are used to clamp the walking chain 220. A power motor 241 is fixedly connected to the circulating track 210, and the power motor 241 is coaxially fixedly connected to one of the driving wheels 242. The two driving wheels 242 are used to clamp the walking chain 220, and the power motor 241 is started. The power motor 241 drives the driving wheels 242 to rotate, thereby pushing the walking chain 220 to move. The walking chain 220 moves to different positions and is driven by the driving member 240 at the corresponding position.

[0049] The embodiment of the present application is a self-circulating doffing and conveying device for a roving frame. The implementation principle is as follows: by setting an empty and full exchange mechanism on the rotating chain 133 and the circulating chain, when the roving frame is full of yarn, the doffing frame 110 is driven to move down to grab the full yarn, and then the doffing frame 110 is lifted, and the driving motor 131 is started to drive the chain to drive multiple first hanging spindles 134 to rotate, so that the empty tubes on the first hanging spindles 134 are aligned with the roving frame, and then the doffing frame 110 is moved down to insert the empty tubes on the roving frame, so that the roving frame can be filled with yarn at one time. The full yarn is replaced with an empty tube, and at the same time, the walking chain 220 on one of the storage tracks 400 moves, enters the circulating track 210 and walks to the empty and full exchange area, and then the first motor 310 is used to drive the supporting seat 330 to rotate so that the full yarn on the rotating chain 133 and the empty tube on the walking chain 220 are exchanged one by one, and then exchanged to the empty tube on the rotating chain 133 to wait for the next yarn dropping of the roving frame, and at the same time exchanged to the full yarn on the walking chain 220 and move with the walking chain 220 to unload the material.

[0050] Example 2

[0051] Reference Figure 8 and Figure 9, the difference between this embodiment and embodiment 1 is that: since the empty tubes on the second hanging bobbin 230 on each walking chain 220 are manually plugged in by the staff, it is inevitable that there will be a possibility of empty tubes. At the same time, there is a possibility that the empty tubes will fall during the lifting process. If the second hanging bobbin 230 falls empty, after the full-empty exchange, the roving frame will have a missing empty tube, which will affect the forming of the roving. For this reason, the supporting seat 330 is slidably connected to the sliding blocks 360 at both ends, and the supporting seat 330 is fixedly connected to the bidirectional cylinder 370. The two piston rods of the bidirectional cylinder 370 are arranged in a one-to-one correspondence with the two sliding blocks 360. The piston rods of the bidirectional cylinder 370 are fixedly connected to the corresponding sliding blocks 360. Each sliding block 360 is fixedly connected to two pressure feedback elements 350. The two pressure feedback elements 350 are arranged in a one-to-one correspondence with the two receiving ingots. The receiving ingots are fixedly connected above the pressure feedback elements 350. The pressure feedback elements 350 are used to detect the pressure on the receiving ingots. The two pressure feedback elements 350 are both electrically connected to an external controller.

[0052] Reference Figure 9 and Figure 10 An empty pipe replenishing mechanism 700 is installed on the bracket, and the empty pipe replenishing mechanism 700 includes a power part 710. In this embodiment, the power part 710 is a second motor 711. The main shaft of the second motor 711 is coaxially fixedly connected to the rotating disk 720. The rotating disk 720 is horizontally arranged. The rotating disk 720 is rotatably connected to the bracket. A plurality of third hanging ingots 730 are fixedly connected to the bottom of the rotating disk 720. The plurality of third hanging ingots 730 are arranged at intervals along the circumference of the rotating disk 720, and each third hanging ingot 730 can be aligned with one of the supporting ingots 340. When the first motor 310 drives the supporting seat 330 to rotate for empty and full exchange, when the cylinder drives the receiving plate to move up to receive the full yarn and the empty tube, if the pressure change amplitude of the pressure feedback element 350 is within the rated range, it means that the empty tube is not missing. If the pressure feedback element 350 does not receive a pressure change, it means that the empty tube on the second hanging spindle 230 is missing. Then the first motor 310 starts again to drive the supporting spindle 340 to rotate to the bottom of the third hanging spindle 730, and then pushes the first cylinder 320 to drive the supporting spindle 340 to move upward, so that the empty tube on the third hanging spindle 730 can be received, and then exchanged to the first hanging spindle 134 on the rotating chain 133, automatically forming a supplement for the missing empty tube, ensuring the continuous operation of the roving frame. At the same time, by utilizing the sliding setting of the two sliding blocks 360, after the supporting spindle 340 takes over the empty tube and the full yarn, the bidirectional cylinder 370 starts to drive the empty tube and the full yarn taken over by the supporting spindle 340 to move in the box, and then drives it to rotate, thereby reducing the possibility of the empty tube and the full yarn taken over by the supporting spindle 340 colliding with the empty tube and the full yarn hanging on the hanging spindle.

[0053] The implementation principle of the self-circulating yarn dropping and conveying device for a roving frame in an embodiment of the present application is as follows: by arranging a third hanging spindle 730 on the rotating disk 720, when exchanging full yarn and empty tube, the supporting condition of the supporting spindle 340 is detected by the pressure feedback element 350 and fed back to the controller; when the supporting spindle 340 is connected to the empty tube, the first motor 310 is started again to drive the supporting spindle 340 to rotate to the bottom of the third hanging spindle 730, and then the first cylinder 320 is pushed to drive the supporting spindle 340 to move upward, so that the empty tube on the third hanging spindle 730 can be connected, and then exchanged to the first hanging spindle 134 on the rotating chain 133, automatically forming a supplement for the missing empty tube, and ensuring the continuous operation of the roving frame.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A self-circulating doffing and conveying device for a roving frame, characterized in that: The invention comprises a bobbin taking-and-putting mechanism (100), an empty-full converter (300) and an empty-bobbin conveying mechanism (200), wherein the bobbin taking-and-putting mechanism (100) comprises a lifting member (120), a doffing frame (110) and a grabbing member (130), wherein the doffing frame (110) is slidably connected to the roving frame, the lifting member (120) is connected to the roving frame, the lifting member (120) is connected to the doffing frame (110) to drive the doffing frame (110) to move up and down, and the grabbing member (130) is connected to the doffing frame (110) to drive the doffing frame (110) to move up and down. The grabbing member (130) is connected to the doffing frame (110), and is used to grab the full yarn tubes on the roving frame and insert the empty tubes onto the roving frame; the empty tube conveying mechanism (200) is used to convey the empty tubes and full yarns; the empty-full converter (300) is arranged between the doffing frame (110) and the empty tube conveying mechanism (200); the empty-full converter (300) is used to exchange the full yarn on the grabbing member (130) with the empty tube on the empty tube conveying mechanism (200); The empty / full converter (300) includes a first motor (310), a first cylinder (320) and a supporting seat (330), wherein the first motor (310) is fixedly connected to the roving frame, the cylinder body of the first cylinder (320) is rotatably connected to one side of the roving frame, the first motor (310) is transmission-connected to the first cylinder (320) to drive the first cylinder (320) to rotate, the supporting seat (330) is fixedly connected to the piston rod of the first cylinder (320), two supporting spindles (340) are provided on the supporting seat (330), and the supporting seat (330) is used to drive the two supporting spindles (340) to exchange positions; Two pressure feedback elements (350) are provided on the support seat (330), and the two pressure feedback elements (350) are provided in a one-to-one correspondence with the two support spindles (340). The support spindles (340) are fixedly connected to the pressure feedback elements (350) corresponding to themselves, and the pressure feedback elements (350) are electrically connected to an external controller. An empty pipe replenishing mechanism (700) is provided on the bracket, and the empty pipe replenishing mechanism (700) is electrically connected to the external controller. When the pressure feedback element (350) detects an empty pipe, the empty pipe on the empty pipe replenishing mechanism (700) will be plugged into the corresponding support spindle (340); The empty tube replenishing mechanism (700) comprises a power member (710), a rotating disk (720) and a plurality of third hanging bobbins (730), wherein the rotating disk (720) is rotatably connected to the bracket, the power member (710) is connected to the bracket, the power member (710) is connected to the rotating disk (720) to drive the rotating disk (720) to rotate, and the plurality of third hanging bobbins (730) are all fixedly connected to the rotating disk (720), and the rotating disk (720) is used to drive the third hanging bobbins (730) to align and position with the supporting bobbins (340).

2. A self-circulating doffing and conveying device for a roving frame according to claim 1, characterized in that: The grabbing member (130) includes a rotating chain (133) and a plurality of first hanging spindles (134), each of the first hanging spindles (134) is fixedly connected to the rotating chain (133), the number of the first hanging spindles (134) is twice the number of full yarns on the roving frame, and empty tubes are arranged at intervals on the plurality of first hanging spindles (134).

3. The self-circulating doffing and conveying device for a roving frame according to claim 1, characterized in that: The empty tube conveying mechanism (200) comprises a bracket, a circulating track (210) and a walking chain (220), wherein the circulating track (210) is fixedly connected to the bracket, and the bracket is used to support the circulating track (210), and the walking chain (220) is slidably connected within the circulating track (210), and a plurality of second hanging spindles (230) are fixedly connected to the walking chain (220), and the walking chain (220) is used to drive the full bobbin into a storage position.

4. A self-circulating doffing and conveying device for a roving frame according to claim 3, characterized in that: A plurality of storage rails (400) are fixedly connected to the bracket, and a walking chain (220) is slidably connected to each of the storage rails (400). A rail switching mechanism is provided between the plurality of storage rails (400) and the circulation rail (210), and the rail switching mechanism controls the circulation rail (210) to be connected to any one of the storage rails (400).

5. The self-circulating doffing and conveying device for a roving frame according to claim 4, characterized in that: A material unloading track (500) is fixedly connected to the bracket, and the track switching mechanism controls the material unloading track (500) to be connected to any one of the storage tracks (400).

6. The self-circulating doffing and conveying device for a roving frame according to claim 1, characterized in that: Two sliding blocks (360) are slidably connected to the support seat (330), a bidirectional cylinder (370) is fixedly connected to the support seat (330), the two sliding blocks (360) are respectively fixedly connected to the piston rods of the bidirectional cylinder (370), the two pressure feedback elements (350) are arranged in a one-to-one correspondence with the two sliding blocks (360), and the pressure feedback elements (350) are fixedly connected to their corresponding sliding blocks (360).

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