Roving frame and method for improving doffing mode

Abstract

According to the roving frame with the improved doffing mode and the working method of the roving frame, the swing claw structure, the dragging mechanism and the yarn hanging platform are additionally arranged on an existing old-fashioned roving frame so that the automatic doffing process can be achieved; the lower keel ascends after being full of yarns, and a full-yarn bobbin temporarily stays on a flyer and a spindle blade and is temporarily fixed through a swing claw structure; a full-yarn bobbin on a flyer and a spindle blade is borne through a yarn supporting platform, and after the full-yarn bobbin moves forwards, the full-yarn bobbin is taken away through a yarn hanging platform; besides, through reverse operation, the empty bobbins are placed on the yarn supporting platform through the yarn hanging platform, the yarn supporting platform moves towards the rear side, the empty bobbins temporarily stay on the flyer and the spindle blade, the yarn supporting platform is moved away, and the empty bobbins are borne after the lower keel ascends; therefore, the automatic doffing process is achieved. The yarn hanging platform can exchange empty bobbins carried by the yarn hanging platform with full-yarn bobbins on the yarn supporting platform moving towards the outer side, so that the dragging mechanism works reversely, and the empty bobbins are placed on the lower keel.

Description

Technical Field

[0001] The present invention relates to a roving frame with an improved doffing method, and more particularly to a technology for realizing automatic doffing by improving an old roving frame. Background Art

[0002] The later processes of the roving frame equipment include the processes of yarn spitting and winding, that is, continuously spitting out the yarn and winding it on the yarn tube. In the prior art, the old roving frame is still used during spinning, and the yarn tubes used on the old roving frame need to be taken down one by one manually for replacement, that is, the process of automatic doffing (including removing the full yarn tubes and placing empty yarn tubes) cannot be realized.

[0003] As Figure 1 and Figure 2 shown, it is an existing old roving frame, which has a main frame body 01, a flyer 02, a lower dragon beam 03 and an upper dragon beam 05. The lower dragon beam 03 is arranged on the main frame body 01 in a liftable manner. The upper dragon beam 05 is arranged at the upper end of the main frame body 01. There is a flyer 02 below the upper dragon beam 05. The lower dragon beam 03 is used to place the yarn tube 04, and the flyer 02 is used to spin yarn onto the yarn tube 04; both the equipment and the working process belong to the prior art and will not be elaborated here.

[0004] However, for the existing old roving frame, when the spinning is completed, when doffing the full yarn (removing the full yarn tubes and placing empty yarn tubes), it is necessary to manually remove the yarn tubes one by one from the lower dragon beam of the spinning machine, which is very troublesome. Similarly, when loading the empty tubes onto the lower dragon beam, they also need to be placed manually one by one; the lower dragon beam of this traditional old roving frame only has a lifting function and cannot move horizontally away from the main frame body, so it is very difficult to realize automatic doffing from the upper position. Summary of the Invention

[0005] To solve the problems existing in the above technologies, the present invention provides a technology for realizing automatic doffing from the lower dragon beam by improving the old equipment.

[0006] An improved roving frame with an improved doffing method provided by the present invention includes:

[0007] A main frame body, a liftable lower dragon beam is arranged at the lower end of the main frame body, a driving plate is arranged on the lower dragon beam, an upper dragon beam is arranged at the upper end of the main frame body, N flyers are arranged on the upper dragon beam, and the flyer has a flyer spindle;

[0008] A swing claw structure, the swing claw structure is arranged on the bottom surface of the upper dragon beam, and the swing claw structure is used to clamp and fix the yarn tube on the flyer spindle;

[0009] Drag mechanism, the drag mechanism is arranged on the lower side of the main frame body, the drag mechanism includes a yarn supporting platform, a lateral moving guide rail and a vertical guide post, the lateral moving guide rail is used to drive the yarn supporting platform to move laterally, and the side of the yarn supporting platform has a passive plate; the driving plate can cooperate with the passive plate to drive the yarn supporting platform to lift along the vertical guide post; the vertical guide post is provided with a telescopic platform positioning and moving rod;

[0010] Yarn hanging platform, the yarn hanging platform is arranged at the outer upper position of the main frame body, and the yarn hanging platform is used to exchange empty yarn tubes and full yarn tubes with the drag mechanism.

[0011] Preferably, the top of the yarn hanging platform is connected to the lower part of the main frame body through a lifting rope, and the side of the yarn hanging platform is slidably arranged in the sliding groove of the main frame body through a guiding pulley; the yarn hanging platform has a rotating wheel disc, empty spindles and a spindle driving steel belt, the spindle driving steel belt is sleeved on the rotating wheel disc, and multiple groups of empty spindles are arranged on the spindle driving steel belt.

[0012] Preferably, it further includes a yarn hanging platform, the yarn hanging platform is arranged at the outer upper position of the main frame body, and the yarn hanging platform is used to remove the yarn tubes on the drag mechanism.

[0013] Preferably, the drag mechanism includes a yarn supporting platform, a lateral moving guide rail, a passive plate and a platform positioning and moving rod, the vertical guide post is arranged on the lateral moving guide rail, and the platform positioning and moving rod is arranged on the vertical guide post;

[0014] The yarn supporting platform is used to hold the yarn tubes on the spindle arms of the spindles, the passive plate is arranged on the yarn supporting platform, the passive plate cooperates with the driving plate, the lateral moving guide rail is used to drive the yarn supporting platform to move laterally, and the platform positioning and moving rod is used to support the yarn supporting platform.

[0015] Preferably, there are multiple spindles, the swing claw structure includes a fixed plate, a moving plate, a swing claw and a telescopic member, the fixed plate is connected to the upper dragon rib, the inner end of the swing claw is rotatably connected to the moving plate, the middle part of the swing claw is rotatably connected to the fixed plate, the outer end of the swing claw is used to clamp the yarn tube, the telescopic member is used to drive the moving plate to move, and each swing claw corresponds to a spindle;

[0016] The swing claw includes a rotating plate and a U-shaped plate, the inner end of the rotating plate is rotatably connected to the moving plate, the middle part of the rotating plate is rotatably connected to the fixed plate, the U-shaped plate is arranged at the outer end of the rotating plate, the upper end of the U-shaped plate is an arc-shaped plate, and ear plates are arranged at the lower ends of the two vertical rods of the U-shaped plate.

[0017] Preferably, there are a plurality of the transverse movement guide rails. The plurality of the transverse movement guide rails include fixed blocks, driving gears, toothed plates, moving plates and vertical guide columns. The fixed blocks are arranged on the ground. The moving plates are movably arranged on the fixed blocks through recessed grooves. The vertical guide columns are arranged on the upper sides of the outer ends of the moving plates. The toothed plates are arranged on one sides of the moving plates. The driving gears are meshed and connected with the toothed plates.

[0018] Preferably, the platform positioning moving rods are telescopically arranged on the vertical guide columns. The platform positioning moving rods at multiple positions are connected with the horizontal movement rods through connecting plates.

[0019] Preferably, the yarn supporting platform includes a plate body, a plurality of yarn supporting plates and receiving columns. The plate body is slidably arranged on the vertical guide columns through driving cards. The plurality of the yarn supporting plates are respectively arranged at the inner ends of the plate body. The receiving columns are respectively arranged in each of the yarn supporting plates.

[0020] The working method of the roving frame with the improved doffing method provided by the present invention includes the following steps:

[0021] Place the yarn tube on the lower dragon beam. As the lower dragon beam continuously rises, the spindle wing spins yarn onto the yarn tube to complete spinning on the yarn tube.

[0022] After spinning is completed on the yarn tube, drive the lower dragon beam to move upward so that the spindle rod of the spindle wing enters the middle of the yarn tube; the transverse movement guide rail drives the yarn supporting platform to move towards the outside of the main frame body.

[0023] Operate through the swinging claw structure. At this time, the swinging claw structure clamps and fixes the yarn tube on which spinning is completed on the spindle rod of the spindle wing, and then the lower dragon beam descends.

[0024] The transverse movement guide rail drives the yarn supporting platform to move towards the inside of the main frame body, so that the projection of the passive plate is located above the driving plate; at this time, the lower dragon beam rises, and the driving plate on the lower dragon beam will contact the passive plate and drive the yarn supporting platform to move upward. When the yarn supporting platform moves up to the first height position; at this time, the platform positioning moving rod extends to support the yarn supporting platform to prevent the yarn supporting platform from moving downward; at this time, the whole yarn supporting platform is still located below the lower dragon beam.

[0025] Subsequently, the transverse movement guide rail drives the yarn supporting platform to move forward again, and the lower dragon beam moves downward; then the transverse movement guide rail drives the yarn supporting platform to move backward, and the yarn supporting platform is moved to the upper side of the lower dragon beam; the lower dragon beam rises again, and the upper end of the lower dragon beam will contact the lower end of the yarn supporting platform and drive the yarn supporting platform to move upward again until the yarn supporting platform receives the yarn tube on the spindle rod of the spindle wing, and at the same time the swinging claw structure loses the clamping of the yarn tube, so that the yarn tubes uniformly fall onto the yarn supporting platform.

[0026] At this time, the lower dragon tendon moves downward, driving the yarn support platform that holds the yarn bobbin to move downward. When the yarn support platform descends to the first height position, it is supported again by the platform positioning and moving rod.

[0027] The horizontal movement guide rail drives the yarn support platform to move forward, so that the yarn bobbins held on the yarn support platform are moved out. In this way, all the yarn bobbins can be taken away from the lower dragon tendon at one time, replacing the manual tube placing process and realizing automatic operation.

[0028] The working method of the roving frame with the improved doffing method provided by the present invention includes the following steps:

[0029] After the spinning is full of yarn, the following operations are performed:

[0030] Step 1: The lower dragon tendon drives the full yarn to rise to the yarn grabbing position, and the swinging claw structure extends to grab the yarn.

[0031] Step 2: The lower dragon tendon descends to the hanging position.

[0032] Step 3: The dragging mechanism moves backward from the spinning position to the doffing position; the driving plate and the passive plate of the lower dragon tendon overlap up and down.

[0033] Step 4: The lower dragon tendon drives the yarn support platform to rise to the middle pin position, and the platform positioning and moving rod extends.

[0034] Step 5: The lower dragon tendon descends to the middle dragging position, the passive plate of the yarn support platform separates from the driving plate of the lower dragon tendon, the dragging mechanism moves forward from the doffing position to the yarn changing position, and the yarn support platform leaves directly below the lower dragon tendon.

[0035] Step 6: The lower dragon tendon descends to the ultra-lowering position, lower than the yarn support platform, the dragging mechanism moves backward to the doffing position, and the yarn support platform is placed above the lower dragon tendon.

[0036] Step 7: The lower dragon tendon pushes the yarn support platform to rise to the yarn taking position, the swinging claw structure retracts, and the full yarn is placed on the yarn support platform.

[0037] Step 8: The dragging mechanism follows the lower dragon tendon to descend to the ultra-lowering position, the doffing platform and the lower dragon tendon are separated up and down, and the dragging mechanism moves forward from the doffing position to the yarn changing position.

[0038] Step 9: The yarn hanging platform descends, the empty spindles on the yarn hanging platform grab the full yarn, the yarn hanging platform lifts the full yarn on the yarn support platform and rises to a certain height. The internal spindle drive steel belt of the yarn hanging platform rotates a distance of one spindle pitch, so that the empty yarn bobbins on the yarn hanging platform are aligned with the receiving posts on the yarn support platform. The yarn hanging platform descends, places the empty yarn bobbins on the yarn hanging platform on the yarn support platform, and the yarn hanging platform rises to the original position.

[0039] Step 10: The dragging platform moves backward to the doffing position, the lower dragon tendon rises to the tube grabbing position, and the swinging claw structure extends to grab the yarn tube.

[0040] Step 11: The lower dragon tendon descends to the ultra-lowering position, and the dragging mechanism moves forward to the yarn-changing position;

[0041] Step 12: The lower dragon tendon ascends to the middle-dragging position, and the dragging mechanism moves backward to the doffing position;

[0042] Step 13: The lower dragon tendon ascends to the middle-pin position, and the platform positioning moving rod retracts;

[0043] Step 14: The lower dragon tendon descends to the mounting position, and the dragging mechanism moves forward to the spinning position;

[0044] Step 15: The lower dragon tendon ascends to the tube-taking position, and the swinging claw structure retracts to scatter the tube;

[0045] Step 16: The lower dragon tendon descends to the spinning starting position to start automatic yarn threading and start spinning, completing the entire process of automatic doffing.

[0046] Note: The above steps are only sorted and described step by step to clarify the doffing process. In actual operation, in order to save time, some step-by-step actions are actually carried out simultaneously, and some positions can also be combined. For example, the yarn-gripping position / tube-gripping position can be combined with the yarn-taking position / tube-taking position.

[0047] Preferably, at this time, the telescopic member extends, driving the moving plate to move. The movement of the moving plate drives the plurality of rotating plates to rotate respectively towards the spindle rods of the plurality of spindle wings, so that the two ear plates at the lower end of the U-shaped plate clamp the protrusions or grooves at the upper end of the yarn tube. And through the setting of the arc-shaped plate, it will not affect the rotation of the rotating plate driving the U-shaped plate. When the telescopic member contracts, the clamping effect on the yarn tube is successively lost.

[0048] Preferably, when the yarn tube rises along the spindle rod of the spindle wing to the designated position and the spindle wing arm swings to the designated angle, the telescopic member works again. The spindle wing arm of the roving frame has a rotating function, so it rotates to a suitable angle to avoid affecting the swinging claw structure.

[0049] Preferably, when the yarn tube receiving platform moves up to receive the yarn tube, the receiving column will enter the lower end of the yarn tube. At the same time, the swinging claw structure loses the clamping of the protrusions or grooves at the upper end of the yarn tube. At this time, the yarn tube receiving platform moves down, driving the yarn tube to move down. When the yarn tube receiving platform moves down to the middle position, it is supported by the platform positioning moving rod. At this time, the moving plate block moves forward along the fixed block through the concave groove, driving the yarn tube receiving platform to move forward, and then taking away multiple yarn tubes at one time.

[0050] The above beneficial effects are as follows: on the existing old-fashioned roving frame, a swinging claw structure, a dragging mechanism and a yarn hanging platform are newly added to realize the automatic doffing process; after the lower dragon beam is full of yarn, it rises, and the full yarn bobbin temporarily stays on the spindle of the flyer, and is temporarily fixed by the swinging claw structure; the full yarn bobbin on the spindle of the flyer is received by the yarn supporting platform, and after moving forward, the yarn hanging platform takes away the full yarn bobbin; in addition, through reverse operation, the empty bobbin is placed on the yarn supporting platform by the yarn hanging platform, the yarn supporting platform moves backward, the empty bobbin is temporarily stayed on the spindle of the flyer, the yarn supporting platform is removed, and after the lower dragon beam rises, it receives the empty bobbin; thus, the automatic doffing process is realized; the production efficiency is improved, and no major changes need to be made to the existing equipment, which has strong practicability.

[0051] The yarn hanging platform can exchange the empty bobbins it carries with the full yarn bobbins on the laterally moving yarn supporting platform, so that the dragging mechanism works in reverse to place the empty bobbins on the lower dragon beam. And reset the swinging claw mechanism, the dragging mechanism and the yarn hanging platform to their original states to ensure that the mainframe of the roving frame can start spinning normally and the doffing system is in a standby state for the next doffing cycle.

[0052] The lower dragon beam drives the bobbin to move up. When the bobbin rises along the spindle of the flyer to the specified position and the flyer arm swings to the specified angle, at this time the swinging claw structure clamps the bobbin and clamps and fixes the bobbin on the spindle of the flyer. Subsequently, the lower dragon beam descends, and the driving plate on one side of the lower dragon beam cooperates with the passive plate, and the lower dragon beam drives the yarn supporting platform to rise. When the yarn supporting platform rises to the middle position, it is supported by the platform positioning moving rod. Subsequently, the lateral moving guide rail drives the yarn supporting platform to move forward. At this time, the lower dragon beam descends to the lower side position of the yarn supporting platform. Subsequently, the lateral moving guide rail drives the yarn supporting platform to move backward, so that the yarn supporting platform is located on the upper side of the lower dragon beam. At this time, the upper end of the lower dragon beam contacts the lower end of the yarn supporting platform and drives the yarn supporting platform to rise. The yarn supporting platform receives the bobbin on the yarn tube receiving column, and the swinging claw structure loses the clamping of the bobbin. The lower dragon beam drives the yarn supporting platform to descend to the middle position, and the platform positioning moving rod supports it. The lateral moving guide rail drives the yarn supporting platform to move forward and can take away the bobbin, thus realizing the process of automatic bobbin removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a schematic structural diagram of the existing old-fashioned spinning frame;

[0054] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0055] Figure 3 is a schematic structural diagram and a partial enlarged view of a roving frame with an improved doffing method of the present invention;

[0056] Figure 4 is Figure 3Structural schematic diagram and partial enlarged view from another perspective;

[0057] Figure 5 is Figure 3 Side structural schematic diagram of

[0058] Figure 6 Structural schematic diagram of the driving mechanism of a roving frame with an improved doffing method according to the present invention;

[0059] Figure 7 is Figure 6 Structural schematic diagram from another perspective of

[0060] Figure 8 Partial enlarged schematic diagram of the swinging claw structure for improving manual tube lowering according to the present invention;

[0061] Figure 9 Partial enlarged schematic diagram of the swinging claw structure for improving manual tube lowering according to the present invention;

[0062] Figure 10 Partial enlarged schematic diagram of the swinging claw structure for improving manual tube lowering according to the present invention;

[0063] Figure 11 Enlarged schematic diagram of a roving frame with an improved doffing method and a yarn hanging platform according to the present invention.

[0064] Figure 12 Partial enlarged schematic diagram of the swinging claw structure for improving manual tube lowering according to the present invention;

[0065] Figure 13 Side schematic diagram of the cooperation between the lower dragon tendon and the driving mechanism of a roving frame with an improved doffing method according to the present invention.

[0066] Figure 14 Structural schematic diagram of the first state of the cooperation between the lower dragon tendon and the driving mechanism of a roving frame with an improved doffing method according to the present invention;

[0067] Figure 15 Structural schematic diagram of the second state of the cooperation between the lower dragon tendon and the driving mechanism of a roving frame with an improved doffing method according to the present invention;

[0068] Figure 16 Structural schematic diagram of the third state of the cooperation between the lower dragon tendon and the driving mechanism of a roving frame with an improved doffing method according to the present invention;

[0069] Figure 17 Structural schematic diagram of the fourth state of the cooperation between the lower dragon tendon and the driving mechanism of a roving frame with an improved doffing method according to the present invention;

[0070] Figure 18 Structural schematic diagram of the fifth state of the cooperation between the lower dragon tendon and the driving mechanism of a roving frame with an improved doffing method according to the present invention.

[0071] Figure 19 It is a schematic structural diagram of the sixth state of the cooperation between the lower dragon tendon and the driving mechanism of a roving frame with an improved doffing method according to the present invention.

[0072] Figure 20 They are several stopping positions when the lower dragon tendon and the yarn supporting platform of the present invention move in the vertical direction.

[0073] Figure 21 They are several stopping positions when the yarn supporting platform of the present invention moves in the horizontal direction. Specific embodiments

[0074] The first embodiment:

[0075] As Figures 3 to 11 shown, a roving frame with an improved doffing method provided by the present invention includes a main frame body 10, a swinging claw structure 20, a driving mechanism 30, and a yarn hanging platform 90;

[0076] A liftable lower dragon tendon 110 is provided at the lower end of the main frame body 10. The lifting system of the lower dragon tendon 110 belongs to the inherent technology of this equipment and will not be elaborated here. A driving plate 111 is provided on the lower dragon tendon 110. An upper dragon tendon 130 is provided at the upper end of the main frame body 10. N spindle wings 120 are provided on the upper dragon tendon 130, and the spindle wings 120 have spindle wing spindles 19;

[0077] The swinging claw structure 20 is provided on the bottom surface 131 of the upper dragon tendon 130, and the swinging claw structure 20 is used to clamp and fix the yarn tube 04 on the spindle wing spindle 19;

[0078] The driving mechanism 30 is provided on the lower side of the main frame body 10. The driving mechanism 30 includes a yarn supporting platform 40, a transverse moving guide rail 50, and a vertical guide post 55. The transverse moving guide rail 50 is used to drive the yarn supporting platform 40 and the vertical guide post 55 to move horizontally. A passive plate 31 is provided on the side of the yarn supporting platform 40, and the passive plate 31 is preferably an L-shaped structure; the driving plate 111 can cooperate with the passive plate 31 to drive the yarn supporting platform 40 to lift along the vertical guide post 55; a telescopic platform positioning and moving rod 32 is provided on the vertical guide post 55.

[0079] The yarn hanging platform 90 is provided at an outer upper position of the main frame body 10. The yarn hanging platform 90 is used to exchange empty yarn tubes and full yarn tubes with the driving mechanism 30. An empty yarn tube refers to a yarn tube without yarn, and a full yarn tube refers to a yarn tube that has completed spinning; the empty yarn tubes can be loaded and placed on the driving mechanism 30 on the yarn hanging platform 90, and the full yarn tubes on the driving mechanism 30 can be taken away.

[0080] Preferably, Figure 11In the figure, the top of the yarn hanging platform 90 is connected below the main frame body 10 through a lifting rope 91, and the side of the yarn hanging platform 90 is slidably arranged in the sliding groove 101 of the main frame body 10 through a guiding pulley 92; the yarn hanging platform 90 is provided with a rotating wheel disc 93, empty spindles 94 and a spindle transmission steel belt 95. The spindle transmission steel belt 95 is sleeved on the rotating wheel disc 93, and multiple groups of empty spindles 94 are arranged on the spindle transmission steel belt 95. The rotating wheel disc 93 rotates to make the spindle transmission steel belt 95 move, so that the empty spindles 94 rotate. Each empty spindle 94 is a gripper for gripping and fixing a yarn tube. Through the lifting action of the lifting rope 91, the yarn hanging platform 90 can drive the empty spindles 94 to descend to the position of the yarn dragging platform 40, so that the action of grasping and taking away the full yarn tube can be completed, and the action of placing an empty yarn tube can also be completed. The lifting rope 91 can also be a lifting rod. This kind of lifting action adopts the existing technology and will not be elaborated here.

[0081] As Figures 12 to 21 shown, the process of the device in this embodiment in specific application is as follows:

[0082] After the spinning is full of yarn, the following actions are carried out:

[0083] Step 1: The lower dragon beam 110 drives the full yarn (the state of the full yarn tube) to rise to the yarn grasping position, and the swinging claw structure 20 extends to grasp the yarn;

[0084] Step 2: The lower dragon beam 110 descends to the mounting position; in the height direction, the several positions where the lower dragon beam 110 stays from bottom to top are: the ultra-lowering position, the mounting position, the middle dragging position, the middle pinning position and the yarn grasping position (yarn taking position). The ultra-lowering position is the lowest position where the lower dragon beam 110 descends. The mounting position is the position where the driving plate 111 of the lower dragon beam 110 drives the passive plate 31 on the side of the yarn dragging platform 40 to rise; the middle dragging position is a position where the lower dragon beam 110 temporarily stays; the middle pinning position refers to the position where the platform positioning moving rod 32 supports the yarn dragging platform 40.

[0085] Step 3: The dragging mechanism 30 moves backward from the spinning position to the doffing position; the driving plate 111 of the lower dragon beam 110 and the passive plate 31 overlap up and down;

[0086] Step 4: The lower dragon beam 110 drives the yarn dragging platform 40 to rise to the middle pinning position, and the platform positioning moving rod 32 extends;

[0087] Step 5: The lower dragon beam 110 descends to the middle dragging position, the passive plate of the yarn dragging platform 40 is separated from the driving plate of the lower dragon beam 110, the dragging mechanism 30 moves forward from the doffing position to the yarn changing position, and the yarn dragging platform 40 leaves directly below the lower dragon beam 110;

[0088] Step 6: The lower dragon beam 110 descends to the ultra-lowering position, lower than the yarn dragging platform 40, the dragging mechanism 30 moves backward to the doffing position, and the yarn dragging platform 40 is placed above the lower dragon beam 110;

[0089] Step 7: The lower cross rail 110 pushes the yarn supporting platform 40 to rise to the yarn taking position, the swing claw structure 20 retracts, and the full package of yarn is placed on the yarn supporting platform 40.

[0090] Step 8: The dragging mechanism 30 follows the lower cross rail 110 to descend to the ultra-lowering position, the doffing platform 40 is separated from the lower cross rail 110 vertically, and the dragging mechanism 30 moves forward from the doffing position to the yarn changing position.

[0091] Step 9: The yarn hanging platform 90 descends, the empty spindles 91 on the yarn hanging platform 90 grab the full package of yarn tubes on the dragging mechanism 30, the yarn hanging platform 90 hoists the full package of yarn on the yarn supporting platform 40 and rises to a certain height, the internal spindle driving steel belt 92 of the yarn hanging platform 90 rotates a distance of one spindle pitch, so that the empty yarn tubes on the yarn hanging platform 90 are aligned with the receiving posts on the yarn supporting platform 40, the yarn hanging platform 90 descends, places the empty yarn tubes on the yarn hanging platform 90 on the yarn supporting platform 40, and the yarn hanging platform 90 rises to the original position.

[0092] Step 10: The dragging platform 40 moves backward to the doffing position, the lower cross rail 110 rises to the tube grasping position, and the swing claw structure 20 extends to grasp the empty yarn tubes on the dragging platform 40.

[0093] Step 11: The lower cross rail 110 descends to the ultra-lowering position, and the dragging mechanism 30 moves forward to the yarn changing position.

[0094] Step 12: The lower cross rail 110 rises to the middle dragging position, and the dragging mechanism 30 moves backward to the doffing position.

[0095] Step 13: The lower cross rail 110 rises to the middle pin position, and the platform positioning moving rod 32 retracts.

[0096] Step 14: The lower cross rail 110 descends to the mounting position, and the dragging mechanism 30 moves forward to the spinning position.

[0097] Step 15: The lower cross rail 110 rises to the tube taking position, the swing claw structure 20 retracts to release the tubes, and the empty yarn tubes are transferred to the lower cross rail 110.

[0098] Step 16: The lower cross rail 110 descends to the spinning starting position to start automatic end feeding and start spinning, completing the whole process of automatic doffing.

[0099] Note: The above steps are sorted and described step by step only to clarify the doffing process. In actual operation, in order to save time, some of the step-by-step actions are actually carried out simultaneously, and some positions can also be combined. For example, the yarn grasping position / tube grasping position can be combined with the yarn taking position / tube taking position.

[0100] In the existing old-fashioned roving frame of the present invention, a swinging claw structure, a dragging mechanism and a yarn hanging platform are newly added to realize the automatic doffing process; after the lower dragon beam is full of yarn, it rises, and the full yarn bobbin temporarily stays on the spindle of the flyer, and is temporarily fixed by the swinging claw structure; the full yarn bobbin on the spindle of the flyer is received by the yarn supporting platform and then moved forward, and then the yarn hanging platform takes away the full yarn bobbin; in addition, through reverse operation, the empty bobbin is placed on the yarn supporting platform by the yarn hanging platform, the yarn supporting platform moves backward, the empty bobbin is temporarily stayed on the spindle of the flyer, the yarn supporting platform is removed, and after the lower dragon beam rises, it receives the empty bobbin; thus, the automatic doffing process is realized; the production efficiency is improved, and there is no need to make major changes to the existing equipment, which has strong practicability.

[0101] In addition, through the cooperation of the swinging claw structure 20 and the spindle 19 of the flyer, the spun bobbin 04 can stay briefly on the upper spindle 19 of the flyer, and then falls onto the yarn supporting platform 40 after losing the clamping later.

[0102] Second embodiment;

[0103] In this embodiment, the lower dragon beam 110 is provided with a plurality of placing posts 115, and the bobbin 04 is placed on the upper ends of the plurality of placing posts 115; during the existing spinning process, the lower dragon beam 110 and the flyer 120 cooperate to complete spinning; the lower dragon beam 110 rises, the spindle 19 of the flyer 120 will enter into the bobbin 04, and then the bobbin 04 is clamped on the spindle 19 of the flyer by the swinging claw structure 20.

[0104] It should be noted that the spinning process completed by the lower dragon beam 110 through the flyer 120 belongs to the conventional technology of this kind of existing roving frame equipment and will not be described in detail here.

[0105] Third embodiment;

[0106] As Figures 8 to 10As shown, there are multiple spindle wings 120, and the multiple spindle wings 120 form two rows. Each spindle wing 120 corresponds to a placement post 115. The swing claw structure 20 is arranged between the two rows of spindle wings 120 at the upper end of the main frame body 10. The swing claw structure 20 includes a fixed plate 21, a moving plate 22, swing claws 210 and a telescopic member 23. The fixed plate 21 is connected to the upper dragon tendon 130. There are multiple swing claws 210, and the multiple swing claws 210 are respectively rotatably arranged on the side of the moving plate 22. The inner end of the swing claw 210 is rotatably connected to the moving plate 22, the middle part 201 of the swing claw 210 is rotatably connected to the fixed plate 21, and the outer end of the swing claw 210 is used to clamp the yarn tube 04. The telescopic member 23 is used to drive the moving plate 22 to move. Each swing claw 210 corresponds to a spindle wing 120. The swing claw 210 includes a rotating plate 211 and a U-shaped plate 212. The inner end of the rotating plate 211 is rotatably connected to the moving plate 22, the middle part of the rotating plate 211 is rotatably connected to the fixed plate 21, the U-shaped plate 212 is arranged at the outer end of the rotating plate 211, the upper end of the U-shaped plate 212 is an arc-shaped plate 213, and ear plates 215 are arranged at the lower ends of the two vertical rods 214 of the U-shaped plate 212.

[0107] After the spindle wing spindle rod 19 enters into the yarn tube 04, at this time the telescopic member 23 extends, driving the moving plate 22 to move. The movement of the moving plate 22 drives the multiple rotating plates 211 to rotate respectively towards the spindle wing spindle rod 19 of the multiple spindle wings 120, so that the two ear plates 215 at the lower end of the U-shaped plate 212 clamp the protrusion 05 or groove at the upper end of the yarn tube 04, and due to the arrangement of the arc-shaped plate 213, it will not affect the rotation of the rotating plate 211 driving the U-shaped plate 212. When the telescopic member 23 contracts, the clamping effect on the yarn tube 04 is successively lost.

[0108] Preferably, when the yarn tube 04 rises along the spindle wing spindle rod 19 to a specified position and the spindle wing arm swings to a specified angle, at this time the telescopic member 23 works again. The spindle wing arm 18 of the roving frame has a rotating function, which is an original built-in function of the roving frame and will not be elaborated here. The spindle wing arm 18 rotates to a suitable angle to avoid affecting the clamping action of the swing claw.

[0109] Further preferably, the telescopic member 23 is, for example, a cylinder structure or an electric telescopic rod.

[0110] Fourth embodiment;

[0111] As Figures 4 to 7As shown, there are multiple lateral movement guide rails 50. The multiple lateral movement guide rails 50 include fixed blocks 51, drive gears 52, toothed plates 53, moving plates 54, and vertical guide posts 55. The fixed blocks 51 are arranged on the ground. The moving plates 54 are movably arranged on the guide blocks 511 of the fixed blocks 51 through recessed grooves 56. The vertical guide posts 55 are arranged on the upper side of the outer ends of the moving plates 54. The toothed plates 53 are arranged on one side of the moving plates 54. The drive gears 52 are meshed and connected with the toothed plates 53. Driven wheels 58 are arranged on the rotating rod bodies 57. The driven wheels 58 are connected with drive wheels 59 through belts 61. The motor drives the drive wheels 59 to move. Through the belts 61, the driven wheels 58 and the rotating rod bodies 57 rotate. The rotating rod bodies 57 drive the drive gears 52 to move at multiple positions, thereby driving the toothed plates 53 to move horizontally.

[0112] There are multiple platform positioning and moving rods 32. The multiple platform positioning and moving rods 32 are telescopically arranged on the vertical guide posts 55. The multiple platform positioning and moving rods 32 are connected with horizontal movement rods 34 through connecting plates 33. The horizontal movement rods 34 are controlled by telescopic cylinders 35 or electric telescopic rods. That is, when the telescopic cylinders 35 drive the horizontal movement rods 34 to move horizontally, the connecting plates 33 will drive the platform positioning and moving rods 32 to move at multiple positions, that is, the platform positioning and moving rods 32 will extend out of or retract from the vertical guide posts 55. After extending out, they can be used to position and support the yarn-supporting platform 40.

[0113] Furthermore, there are slidable driving cards 551 on the vertical guide posts 55. The driving cards 551 are connected with the yarn-supporting platform 40. Both sides of the driving cards 551 are clamped by sliding wheels 552 and are slidably arranged on the guide protrusions 553 of the vertical guide posts 55. As Figure 7 shown, after the platform positioning and moving rods 32 extend out of the vertical guide posts 55 and when the yarn-supporting platform 40 rises, the platform positioning and moving rods 32 can be used to support and fix the driving cards 551, thereby forming the support for the yarn-supporting platform 40.

[0114] By the extension of the telescopic cylinder 42, the platform positioning moving rod 32 moves forward, so that the platform positioning moving rod 32 supports the yarn supporting platform 40. Subsequently, the driving wheel 59 is driven to rotate by the motor structure, the driven wheel 58 is driven to rotate by the belt 61, the rotating rod body 57 is driven to rotate by the driven wheel 58, the driving gear 52 is driven to rotate by the rotating rod body 57, the driving gear 52 drives the moving plate 54 to move through the action of the toothed plate 53, the moving plate 54 moves along the fixed block 51 through the concave groove 56, so that the vertical guide post 55 drives the yarn supporting platform 40 to move forward. When the driving motor reverses, the yarn supporting platform 40 will move towards the main frame body 10, and the telescopic cylinder 42 contracts, so that the platform positioning moving rod 32 loses the support for the yarn supporting platform 40. At this time, the yarn supporting platform 40 will move down to the lowest position through the cooperation of the passive plate 31 and the driving plate 111.

[0115] In another movement process: after the yarn bobbin 04 is full of yarn, the lower dragon beam 110 moves upward so that the spindle of the flyer 19 enters the middle part of the yarn bobbin 04; the transverse moving guide rail 50 drives the yarn supporting platform 40 to move towards the outer side of the main frame body 10;

[0116] It is operated through the swinging claw structure 20. At this time, the swinging claw structure 20 clamps and fixes the spun yarn bobbin 04 on the spindle of the flyer 19. Subsequently, the lower dragon beam 110 descends, that is, it reaches the state as Figure 15 shown.

[0117] The transverse moving guide rail 50 drives the yarn supporting platform 40 to move towards the inner side of the main frame body 10, so that the projection of the passive plate 31 is located above the driving plate 111; at this time, the lower dragon beam 110 rises, the driving plate 111 on the lower dragon beam 110 will contact the passive plate 31, and drive the yarn supporting platform 40 to move upward. When the yarn supporting platform 40 moves up to the middle pin position; at this time, the platform positioning moving rod 32 extends to support the yarn supporting platform 40 to prevent the yarn supporting platform 40 from moving down; at this time, the whole yarn supporting platform 40 is still located below the lower dragon beam 110, that is, it reaches the state as Figure 16 and Figure 17 shown;

[0118] The transverse moving guide rail 50 drives the yarn supporting platform 40 to move forward again, and the lower dragon beam 110 moves down, that is, it reaches the state as Figure 18 shown; then the transverse moving guide rail 50 drives the yarn supporting platform 40 to move backward, and the yarn supporting platform 40 is moved to the upper side of the lower dragon beam 110, that is, it reaches the state as Figure 19 shown; the lower dragon beam 110 rises again, the upper end of the lower dragon beam 110 will contact the lower end of the yarn supporting platform 40, and drive the yarn supporting platform 40 to move up again until the yarn supporting platform 40 receives the yarn bobbin 04 on the spindle of the flyer 19, and at the same time, the swinging claw structure 20 loses the clamping of the yarn bobbin, so that the yarn bobbins 04 uniformly fall onto the yarn supporting platform 40;

[0119] At this time, the lower dragon tendon 110 moves downward, driving the yarn supporting platform 40 that holds the yarn bobbin 04 to move downward. When the yarn supporting platform 40 descends to the first height position, it is supported again by the platform positioning and moving rod 32.

[0120] The horizontal moving guide rail 50 drives the yarn supporting platform 40 to move forward, causing the yarn bobbin 04 held on the yarn supporting platform 40 to move outwards. In this way, the process of automatically removing all the yarn bobbins 04 from the lower dragon tendon 110 is realized, replacing the process of manually placing the bobbins and achieving automated operation.

[0121] In addition, it also includes the step of empty bobbin loading:

[0122] The horizontal moving guide rail 50 drives the yarn supporting platform 40 to move outwards, loading empty yarn bobbins onto the yarn supporting platform 40.

[0123] The horizontal moving guide rail 50 drives the yarn supporting platform 40 to move inwards and to the upper side of the lower dragon tendon 110.

[0124] The lower dragon tendon 110 moves upward and contacts the bottom of the yarn supporting platform 40, then drives the yarn supporting platform 40 to move upward until the empty yarn bobbin on the yarn supporting platform 40 enters onto the spindle rod 19 of the top flyer.

[0125] The swing claw structure 20 switches positions to clamp and fix the yarn bobbin on the spindle rod 19 of the flyer.

[0126] The lower dragon tendon 110 moves downward, and the yarn supporting platform 40 follows and descends. At the first height position, i.e., the middle pin position, it is supported by the extended platform positioning and moving rod 32 so that the yarn supporting platform 40 stays at the first height position.

[0127] The lower dragon tendon 110 moves downward, and the horizontal moving guide rail 50 drives the yarn supporting platform 40 to move outwards again, and makes the projection of the L-shaped passive plate 31 located above the driving plate 111.

[0128] The lower dragon tendon 110 rises again until the driving plate 111 touches the L-shaped passive plate 31, and the platform positioning and moving rod 32 loses support.

[0129] The lower dragon tendon 110 descends again, and the L-shaped passive plate 31 and the yarn supporting platform 40 descend accordingly to the lowest position.

[0130] The horizontal moving guide rail 50 drives the yarn supporting platform 40 to move outwards again, so that the projection of the L-shaped passive plate 31 is not above the driving plate 111.

[0131] The lower dragon tendon 110 moves upward until it receives the empty yarn bobbin on the spindle rod 19 of the top flyer, and the swing claw structure 20 switches positions and loses the clamping of the yarn bobbin on the spindle rod 19 of the flyer.

[0132] The empty bobbins are transferred to the lower creel 110.

[0133] The fifth embodiment;

[0134] As Figure 8 shown, the yarn supporting platform 40 includes a plate body 45, a plurality of yarn supporting plates 46, and receiving columns 47. The plate body 45 is slidably arranged on the vertical guide posts 55 by driving cards 551. A plurality of the yarn supporting plates 46 are respectively arranged at the inner ends of the plate body 45, and the receiving columns 47 are respectively arranged inside each of the yarn supporting plates 46.

[0135] When the yarn supporting platform 40 moves upward to receive the bobbins, the receiving columns 47 will enter the lower ends of the bobbins. At the same time, the swinging claw structure 20 loses the clamping of the upper protrusion 05 or groove of the bobbin 04. At this time, the yarn supporting platform 40 moves downward, driving the bobbin to move downward. When the yarn supporting platform 40 moves downward to the middle position, it is supported by the platform positioning and moving rod 32. At this time, the moving plate 54 moves forward along the fixed block 51 through the recessed groove 56, driving the yarn supporting platform 40 to move forward, and multiple bobbins can be taken away at one time.

[0136] Referring Figure 5 , in addition, an elevating yarn hanging platform structure 90 is arranged above the dragging mechanism 30. The yarn hanging platform 90 is arranged at the outer upper position of the main frame body 10. The yarn hanging platform structure 90 is used to lift away all the bobbins received by the yarn supporting platform 40. The function of the yarn hanging platform structure 90 is to lift away the bobbins 04 on the dragging mechanism 30 at one time, thereby further realizing the automation process of bobbin transfer. Preferably, the yarn hanging platform structure 90 has a gripper structure that can be lifted and lowered. The gripper after descending can take away or place the bobbins 04 from the dragging mechanism 30.

[0137] In other embodiments, it is also possible not to drive the yarn supporting platform 40 to lift and lower through the lower creel 110. At this time, a lifting driving member can be separately arranged on the dragging mechanism 30, and the driving plate and the driven plate can be omitted. That is, directly driving the yarn supporting platform 40 to perform lifting and lowering movement by the lifting driving member can also complete the process of receiving the bobbins. However, in this embodiment, the cost will increase.

Claims

1. A roving frame with an improved doffing method, characterized in that, Including: A main frame body, a liftable lower dragon tendon is arranged at the lower end of the main frame body, an upper dragon tendon is arranged at the upper end of the main frame body, N spindle wings are arranged on the upper dragon tendon, and the spindle wings have spindle wing spindles; A swinging claw structure, the swinging claw structure is arranged on the bottom surface of the upper dragon tendon, and the swinging claw structure is used to clamp and fix the yarn tube on the spindle wing spindle; A dragging mechanism, the dragging mechanism is arranged on the lower side of the main frame body, and the dragging mechanism includes a yarn supporting platform; A yarn hanging platform, the yarn hanging platform is arranged at the upper outer position of the main frame body, and the yarn hanging platform is used to exchange empty yarn tubes and full yarn tubes with the dragging mechanism.

2. The roving frame with an improved doffing method according to claim 1, wherein, The top of the yarn hanging platform is connected to the lower part of the main frame body through a lifting rope, and the side part of the yarn hanging platform is slidably arranged in the sliding groove of the main frame body through a guiding pulley; the yarn hanging platform has a rotating wheel disc, empty spindles and a spindle transmission steel belt, the spindle transmission steel belt is sleeved on the rotating wheel disc, and multiple groups of empty spindles are arranged on the spindle transmission steel belt.

3. The roving frame with an improved doffing method according to claim 1, characterized in that The dragging mechanism includes a yarn supporting platform, a transverse moving guide rail, a vertical guide post, a passive plate and a platform positioning moving rod, and a telescopic platform positioning moving rod is arranged on the vertical guide post; A driving plate is arranged on the lower dragon tendon, and the side part of the yarn supporting platform has a passive plate; the driving plate can cooperate with the passive plate to drive the yarn supporting platform to lift along the vertical guide post; The yarn supporting platform is used to receive the yarn tube on the spindle wing spindle, the transverse moving guide rail is used to drive the yarn supporting platform and the vertical guide post to move horizontally, and the platform positioning moving rod is used to support the yarn supporting platform.

4. The roving frame with an improved doffing method according to claim 3, wherein, There are multiple spindle wings, the swinging claw structure includes a fixed plate, a moving plate, a swinging claw and a telescopic member, the fixed plate is connected to the upper dragon tendon, the inner end of the swinging claw is rotatably connected to the moving plate, the middle part of the swinging claw is rotatably connected to the fixed plate, the outer end of the swinging claw is used to clamp the yarn tube, and the telescopic member is used to drive the moving plate to move, and each swinging claw corresponds to a spindle wing; The swinging claw includes a rotating plate and a U-shaped plate, the inner end of the rotating plate is rotatably connected to the moving plate, the middle part of the rotating plate is rotatably connected to the fixed plate, the U-shaped plate is arranged at the outer end of the rotating plate, the upper end of the U-shaped plate is an arc plate, and ear plates are arranged at the lower ends of the two vertical rods of the U-shaped plate.

5. The roving frame with an improved doffing method according to claim 3, characterized in that There are multiple transverse moving guide rails, and the multiple transverse moving guide rails include a fixed block, a driving gear, a toothed plate, a moving plate block and a vertical guide post. The fixed block is arranged on the ground, the moving plate block is movably arranged on the fixed block through a concave groove, the vertical guide post is arranged on the upper side of the outer end of the moving plate block, the toothed plate is arranged on one side of the moving plate block, and the driving gear is meshed with the toothed plate.

6. The roving frame with an improved doffing method according to claim 5, characterized in that The platform positioning moving rod is telescopically arranged on the vertical guide post, and the platform positioning moving rods at multiple positions are connected to the horizontal moving rod through a connecting plate; The yarn supporting platform includes a plate body, a plurality of yarn supporting plates, and receiving columns. The plate body is slidably arranged on the vertical guide posts through driving cards. The plurality of yarn supporting plates are respectively arranged at the inner end of the plate body, and the receiving columns are respectively arranged inside each yarn supporting plate.

7. The working method of the roving frame with an improved doffing method according to any one of claims 1 to 6, characterized in that, After the lower dragon tendon is full of yarn, it rises. The full yarn bobbin temporarily stays on the spindle of the flyer and is temporarily fixed through the swinging claw structure. The full yarn bobbin on the spindle of the flyer is received by the yarn supporting platform. After moving forward, the yarn hanging platform takes away the full yarn bobbin. In addition, through reverse operation, the empty bobbin is placed on the yarn supporting platform through the yarn hanging platform. The yarn supporting platform moves backward, temporarily stops the empty bobbin on the spindle of the flyer, removes the yarn supporting platform, and after the lower dragon tendon rises, it receives the empty bobbin. Thus, the automatic doffing process is realized.

8. The working method of the roving frame with an improved doffing method according to claim 7, characterized in that, It includes the following steps: After the spinning is full of yarn, the following actions are carried out: Step 1: The lower dragon tendon drives the full yarn to rise to the yarn grasping position, and the swinging claw structure extends to grasp the yarn. Step 2: The lower dragon tendon descends to the mounting position. Step 3: The dragging mechanism moves backward from the spinning position to the doffing position; the driving plate and the passive plate of the lower dragon tendon overlap up and down. Step 4: The lower dragon tendon drives the yarn supporting platform to rise to the middle pin position, and the platform positioning moving rod extends. Step 5: The lower dragon tendon descends to the middle dragging position, the passive plate of the yarn supporting platform is separated from the driving plate of the lower dragon tendon, the dragging mechanism moves forward from the doffing position to the yarn changing position, and the yarn supporting platform leaves directly below the lower dragon tendon. Step 6: The lower dragon tendon descends to the ultra-lowering position, lower than the yarn supporting platform, the dragging mechanism moves backward to the doffing position, and the yarn supporting platform is placed above the lower dragon tendon. Step 7: The lower dragon tendon pushes the yarn supporting platform to rise to the yarn taking position, the swinging claw structure retracts, and the full yarn is placed on the yarn supporting platform. Step 8: The dragging mechanism follows the lower dragon tendon to descend to the ultra-lowering position, the doffing platform is separated from the lower dragon tendon up and down, and the dragging mechanism moves forward from the doffing position to the yarn changing position. Step 9: The yarn hanging platform descends, the empty hanging spindle on the yarn hanging platform grabs the full yarn, the yarn hanging platform hoists the full yarn on the yarn supporting platform, rises a certain height, the driving steel belt of the hanging spindle inside the yarn hanging platform rotates a distance of one spindle pitch, so that the empty bobbin on the yarn hanging platform is aligned with the receiving column on the yarn supporting platform, the yarn hanging platform descends, places the empty bobbin on the yarn hanging platform on the yarn supporting platform, and the yarn hanging platform rises to the original position. Step 10: The dragging platform moves backward to the doffing position, the lower dragon tendon rises to the tube grasping position, and the swinging claw structure extends to grasp the bobbin. Step 11: The lower dragon tendon descends to the ultra-lowering position, and the dragging mechanism moves forward to the yarn changing position. Step 12: The lower dragon tendon rises to the middle dragging position, and the dragging mechanism moves backward to the doffing position. Step 13: The lower dragon tendon rises to the middle pin position, and the platform positioning moving rod retracts. Step 14: The lower dragon tendon descends to the mounting position, and the dragging mechanism moves forward to the spinning position. Step 15: The lower dragon tendon rises to the tube taking position, and the swinging claw structure retracts to release the tube. Step 16: The lower dragon tendon descends to the spinning starting position to start automatic end feeding and start spinning, completing the whole process of automatic doffing.

9. The working method of the roving frame with an improved doffing method according to claim 8, characterized in that, It includes the following steps: When the bobbin rises to the specified position along the flyer spindle rod and the flyer arm swings to the specified angle, the telescopic part extends, driving the movable plate to move. The movement of the movable plate drives multiple rotating plates to rotate toward the flyer spindle rods of multiple flyers respectively, so that the two ear plates at the lower end of the U-shaped plate clamp the protrusion or groove at the upper end of the bobbin, and through the setting of the arc plate, it will not affect the rotation of the U-shaped plate. When the telescopic part contracts, the clamping effect on the bobbin is lost one after another.

10. The working method of the roving frame with an improved doffing method according to claim 9, characterized in that, The following steps are involved: When the yarn supporting platform moves up to receive the yarn tube, the receiving column will enter the lower end of the yarn tube, and the swing claw structure will lose its grip on the protrusion or groove on the upper end of the yarn tube. At this time, the yarn supporting platform moves down, driving the yarn tube down. When the yarn supporting platform moves down to the middle position, it is supported by the platform positioning moving rod. At this time, the moving plate moves forward along the fixed block through the recessed groove, driving the yarn supporting platform forward, and subsequently removing multiple yarn tubes at one time.

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