Yarn stranding device

Abstract

The utility model relates to a yarn plying device which comprises a doubling mechanism, a winding mechanism and a lifting mechanism, the doubling mechanism is used for combining multiple strands of yarn together, the winding mechanism and the lifting mechanism are matched to wind the combined multiple strands of yarn on a bobbin, the lower portion of the bobbin is cylindrical, and the upper end of the bobbin is in an inverted cone shape. The winding mechanism comprises a vertically arranged spindle, a rotating mechanism for driving the spindle to rotate and a steel collar plate arranged outside the spindle, an avoiding hole is formed in the middle of the steel collar plate, an annular limiting plate is arranged at the edge of the avoiding hole, a nylon hook capable of rotating along the limiting plate is arranged on the limiting plate, and the steel collar plate is connected with the lifting mechanism; a yarn guide porcelain cup is arranged right above the spindle; a bobbin is fixedly arranged on the spindle; the upper reversing switch and the lower reversing switch are used for controlling the steel collar plate to reverse at the upper end and the lower end of the bobbin. The yarn plying device enables the steel collar plate to achieve automatic reversing, yarn accumulation is avoided, bobbins are formed fully, the product quality is improved, and knocking-over is avoided during yarn reeling.

Description

TECHNICAL FIELD

[0001] The utility model relates to textile technology field, concretely relates to a yarn plying device. BACKGROUND

[0002] The existing plying machine uses cam control to lift the steel ring plate, which has two shortcomings: 1. After the cam wears out, the steel ring plate cannot be lifted to the right position, and the reversing is not timely, and it is easy to stop in the middle, causing poor plying formation. 2. The top of the plying yarn tube has an inverted taper chamfer, and the yarn cannot fill the chamfer, causing the yarn to easily come off the ring when shaking. Therefore, it is necessary to reform the forming mechanism of the plying machine for the above two problems. The reform goal is: 1. The steel ring plate can quickly reverse when moving to the highest and lowest positions to avoid yarn accumulation; 2. The steel ring plate can fill the chamfer of the yarn tube when moving to the highest position, making the formation full and not coming off the ring when shaking. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a yarn plying device, which can automatically reverse the steel ring plate, avoid yarn accumulation, make the yarn tube form full, improve product quality, and not come off the ring when shaking.

[0004] To solve the above problems, the technical scheme adopted by the utility model is:

[0005] A yarn plying device, which comprises a doubling mechanism, a winding mechanism and a lifting mechanism, the doubling mechanism is used to combine multiple yarns together, the winding mechanism and the lifting mechanism cooperate to wind the combined multiple yarns on a yarn tube, the lower part of the yarn tube is cylindrical, and the upper end is inverted taper; the winding mechanism comprises a spindle arranged vertically, a rotating mechanism for driving the spindle to rotate, and a steel ring plate arranged outside the spindle, the middle part of the steel ring plate is provided with a clearance hole, the edge of the clearance hole is provided with an annular limiting plate, the limiting plate is provided with a nylon hook that can rotate along the limiting plate, and the steel ring plate is connected with the lifting mechanism; a guide yarn porcelain cup is arranged directly above the spindle;

[0006] The yarn tube is fixedly arranged on the spindle; the upper reversing switch and the lower reversing switch are further arranged to control the reversing of the steel ring plate at the upper end and the lower end of the yarn tube.

[0007] As an embodiment of the utility model, the upper reversing switch and the lower reversing switch are proximity switches arranged on the upper and lower end sides of the yarn tube, which are used to detect the position of the steel ring plate.

[0008] As an embodiment of the utility model, the steel ring plate is connected with the connecting plate, a plurality of winding mechanisms are uniformly arranged along the horizontal direction, the connecting plates of the plurality of winding mechanisms are connected with the same lifting plate, and the lifting mechanism is used to drive the lifting plate to move up and down.

[0009] As an embodiment of the utility model, the lifting mechanism includes driving sprocket, steering sprocket, driven sprocket, double sprocket and transmission sprocket, the double sprocket is arranged on the first distribution shaft, the first distribution shaft is installed with driven sprocket on the end close to steering sprocket, the transmission sprocket is arranged on the second distribution shaft, the driving sprocket is installed on the output shaft of servo motor, the first chain is fixed on the driving sprocket, the other end of first chain is fixed together with driven sprocket after passing through steering sprocket, the double sprocket is fixed with load bearing chain, the lower end of load bearing chain is connected with counterweight, the double sprocket is fixed with lifting chain, the lifting chain is connected with lifting plate after passing through transmission sprocket, a plurality of guide holes are arranged on the lifting plate, and guide rod is vertically arranged in the guide hole.

[0010] As an embodiment of the utility model, the doubling mechanism and winding mechanism are symmetrically provided with two rows, the lifting mechanism is arranged between the two rows of winding mechanisms, the double sprocket and transmission sprocket are each provided with two, two double sprockets are arranged at the two ends of the first distribution shaft, two transmission sprockets are arranged at the two ends of the second distribution shaft, one load bearing chain is fixed on each of the two double sprockets, one lifting chain is fixed on each of the two double sprockets, and two lifting chains are connected with two lifting plates in the two rows of winding mechanisms arranged symmetrically.

[0011] As an embodiment of the utility model, the upper and lower reversing switches are proximity switches arranged on the side of the lifting plate, which are used to detect the position of the lifting plate, or,

[0012] The output shaft of the servo motor is coaxially fixed with an extension shaft, the extension shaft is provided with a detection block, the upper and lower reversing switches are limit switches arranged around the extension shaft to sense the position of the detection block, which are used to control the forward and reverse directions and angles of the output shaft.

[0013] As an embodiment of the utility model, the doubling mechanism includes a plurality of first mounting plates uniformly arranged along the vertical direction and a yarn inserting seat arranged on the first mounting plate, the yarn inserting seat is used to mount the tube yarn, a second mounting plate is arranged below the first mounting plate, a C-shaped or L-shaped fifth mounting frame is mounted on the second mounting plate, a guide rod is arranged on the fifth mounting frame in one-to-one correspondence with the yarn inserting seat, and a spiral part is arranged at the lower end of the guide rod, a fourth mounting frame is arranged below the second mounting plate, three broken yarn self-stoppers are horizontally arranged on the fourth mounting frame, a comb plate is arranged at the front of the broken yarn self-stopper, two extrusion rollers are arranged below the comb plate and abut against each other, one of the extrusion rollers abuts against the driving roller, and the rotating shaft of the driving roller is connected with the rotating mechanism.

[0014] As an embodiment of the utility model, the third mounting frame is arranged below the fifth mounting frame on the second mounting plate, the third mounting frame is arranged above the broken line self-stopping device, and two rollers are arranged on the third mounting frame.

[0015] As an embodiment of the utility model, the steel ring plate is vertically provided with a baffle on the left and right sides, the baffle is provided with a guide groove in the vertical direction, and a limiting block that can slide up and down along the guide groove is fixed to the left or right side of the steel ring plate.

[0016] As an embodiment of the utility model, the upper stop switch and the lower stop switch are further arranged to limit the limit position of the up-down movement of the steel ring plate.

[0017] The beneficial effects of the above technical scheme are as follows.

[0018] The yarn plying device provided by the utility model can make the multiple yarns pass through the doubling mechanism, be wound on the yarn tube after passing through the nylon hooks on the steel ring plate, and be wound on the yarn tube by the up-down movement of the steel ring plate and the rotation of the yarn tube.

[0019] When the yarn is wound by the winding mechanism, the rotation mechanism in the winding mechanism is controlled to rotate the yarn tube, the steel ring plate is first controlled to move downward to the lowest position by the lifting mechanism, the lower reversing switch is triggered, the lower reversing switch sends a signal to the central control PLC, the lifting mechanism controls the steel ring plate to reverse and move upward, until the upper reversing switch detects the steel ring plate, the upper reversing switch sends a signal to the central control PLC, the steel ring plate moves downward, the central control PLC records this cycle and the maximum displacement of the upward movement of the steel ring plate in this cycle, the diameter of the yarn is L, in the next cycle, the maximum displacement of the upward movement of the steel ring plate is reduced by L millimeters, and in each cycle, the maximum displacement of the upward movement of the steel ring plate is reduced by L millimeters than that in the previous cycle, until the steel ring plate moves upward to the maximum displacement and is just located at the junction of the cylindrical part and the conical part of the yarn tube, the height of the conical part is H millimeters, at this time, the cycle number of the movement is H / L, and the H / L cycle numbers are called a large cycle; in the next cycle, the maximum displacement of the upward movement of the steel ring plate is increased by L millimeters than that in the previous cycle, until the upper reversing switch can detect the steel ring plate again, at this time, the cycle number of the movement is 2H / L, and the H / L cycle numbers are also called a large cycle, after a plurality of large cycles, the yarn wound on the cylindrical part of the lower part of the yarn tube is in a normal cylindrical shape, the outer contour of the yarn wound on the conical part of the upper part of the yarn tube is also in a conical or cylindrical shape, the chamfer of the upper part of the yarn tube is filled, the formed yarn is full, and the yarn does not come off during shaking.

[0020] After the modification, the servo motor runs smoothly, the commutation is accurate and timely, the yarn is regular and full, the bobbin has no big head or big bottom, and the yarn weight is increased by 10%, which reduces the joint, improves the product quality, reduces the labor intensity of workers, and avoids unnecessary waste caused by the big head or big bottom in the shaking process. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the utility model.

[0022] Figure 2 is another angle structural schematic diagram of the utility model.

[0023] Figure 3 is a structural schematic diagram of the lifting mechanism in the utility model.

[0024] Figure 4 is another angle structural schematic diagram of the lifting mechanism in the utility model.

[0025] Figure 5 is a structural schematic diagram of the doubling mechanism and the winding mechanism in the utility model.

[0026] Figure 6 is a structural schematic diagram of a group of doubling mechanism and winding mechanism in the utility model.

[0027] Figure 7 is another angle structural schematic diagram of a group of doubling mechanism and winding mechanism in the utility model.

[0028] Figure 8 is still another angle structural schematic diagram of a group of doubling mechanism and winding mechanism in the utility model.

[0029] Figure 9 is a structural schematic diagram of the winding mechanism in the utility model.

[0030] Figure 10 is a structural schematic diagram of the bobbin in the utility model.

[0031] Wherein: 1 wallboard, 2 through the channel, 3 first mounting bracket, 4 steering sprocket, 5 second mounting bracket, 6 drive sprocket, 7 servo motor, 8 extension shaft, 9 limit switch, 901 installation frame, 10 first chain, 11 first distribution shaft, 1101 driven sprocket, 12 double sprocket, 13 bearing chain, 14 counterweight, 15 second distribution shaft, 16 transmission sprocket, 17 lifting chain, 18 first mounting plate, 19 insertion seat, 20 tube yarn, 21 second mounting plate, 22 fifth mounting bracket, 23 guide rod, 2301 spiral part, 24 roller, 25 third mounting bracket, 26 self-stop needle, 27 comb plate, 28 cross bar, 29 extrusion roller, 30 fourth mounting bracket, 31 drive roller, 32 rotating shaft, 33 guide ceramic cup, 34 third mounting plate, 35 baffle, 36 guide slot, 37 steel ring plate, 3701 avoiding hole, 38 limit block, 39 guide ring, 40 limit plate, 41 nylon hook, 42 spindle, 43 yarn tube, 4301 cylindrical part, 4302 conical part, 44 placing table, 45 rotating mechanism, 46 connecting plate, 47 lifting plate, 48 guide rod. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described clearly and completely below in combination with specific embodiments.

[0033] As shown in Figure 1 , Figure 2 and Figures 5-10 A yarn plying device, which comprises a doubling mechanism, a winding mechanism and a lifting mechanism, the doubling mechanism is used for combining multiple yarns together, the winding mechanism and the lifting mechanism cooperate to wind the combined multiple yarns on a yarn tube 43, the lower part of the yarn tube 43 is cylindrical, and the upper end is inverted conical; the winding mechanism comprises a spindle 42 arranged vertically, a rotating mechanism for driving the spindle 42 to rotate, and a steel ring plate 37 arranged outside the spindle 42, the middle part of the steel ring plate 37 is provided with an avoiding hole 3701, the edge of the avoiding hole 3701 is provided with an annular limit plate 40, the limit plate 40 is provided with a nylon hook 41 which can rotate along the limit plate 40, and the steel ring plate 37 is connected with the lifting mechanism; a guide ceramic cup 33 is arranged above the spindle 42 to guide the yarn;

[0034] The spindle 42 is fixedly provided with the yarn tube 43; the device further comprises an upper reversing switch and a lower reversing switch for controlling the reversing of the steel ring plate 37 at the upper end and the lower end of the yarn tube 43.

[0035] The yarn plying device provided by the utility model, after the multiple yarns are plied through the plying mechanism, the yarns are wound on the yarn tube 43 after winding around the nylon hook 41 on the ring plate 37, and the yarns are wound on the yarn tube 43 by the cooperation of the up-and-down movement of the ring plate 37 and the rotation of the yarn tube 43. The ring plate 37 can quickly change direction when moving to the highest and lowest positions, thereby avoiding the accumulation of the yarns.

[0036] After the modification, the servo motor 7 runs stably, changes direction accurately and timely, the yarns are regular and full, the yarn tube 43 has no big head or big bottom, and the yarn weight is increased by 10%, thereby reducing the joint, improving the product quality, reducing the labor intensity of workers, and avoiding unnecessary waste caused by the disengagement of the big head or big bottom during the yarn shaking process.

[0037] As shown in Figure 5 The ring plate 37 is connected with the connecting plate 46, a plurality of winding mechanisms are uniformly arranged along the horizontal direction, the connecting plates 46 of the plurality of winding mechanisms are connected with the same lifting plate 47, and the lifting mechanism is used to drive the up-and-down movement of the lifting plate 47.

[0038] As shown in Figure 3 and Figure 4 The lifting mechanism comprises a driving sprocket 6, a steering sprocket 4, a driven sprocket 1101, a double sprocket 12 and a transmission sprocket 16, the double sprocket 12 is arranged on a first distribution shaft 11, the driven sprocket 1101 is installed on one end of the first distribution shaft 11 close to the steering sprocket 4, and the transmission sprocket 16 is arranged on a second distribution shaft 15; the driving sprocket 6 is installed on the output shaft of the servo motor 7, a first chain 10 is fixedly arranged on the driving sprocket 6, one end of the first chain 10 is fixedly connected with the driven sprocket 1101 after winding around the steering sprocket 4; the double sprocket 12 is fixedly connected with a load-bearing chain 13, and the lower end of the load-bearing chain 13 is connected with a counterweight 14; the double sprocket 12 is fixedly connected with a lifting chain 17, and the lifting chain 17 is connected with the lifting plate 47 after winding around the transmission sprocket 16; a plurality of guide holes are arranged on the lifting plate 47, and a guide rod 48 is vertically arranged in the guide hole and used for guiding the lifting plate 47 to move in the vertical direction. The servo motor 7 is fixedly arranged on the vertically arranged wall plate 1 through the second mounting frame 5, a through groove 2 is formed in the wall plate 1 above the servo motor 7, the steering sprocket 4 is installed at the through groove 2 through the first mounting frame 3, and the first distribution shaft 11 and the second distribution shaft 15 are installed on the rack and located on the two sides of the wall plate 1 respectively.

[0039] In the embodiment, the line combining mechanism and the winding mechanism are symmetrically provided with two rows, the lifting mechanism is arranged between the two rows of winding mechanisms; the double sprocket 12 and the transmission sprocket 16 are each provided with two, two double sprockets 12 are arranged at both ends of the first distribution shaft 11, two transmission sprockets 16 are arranged at both ends of the second distribution shaft 15, one load-bearing chain 13 is fixedly connected to each of the two double sprockets 12, and two lifting chains 17 are fixedly connected to each of the two double sprockets 12. The two lifting chains are respectively connected to the two lifting plates 47 in the two rows of winding mechanisms arranged symmetrically. Because the steel ring plate 37, the connecting plate 46 and the lifting plate 47 are heavy, the counterweight 14 can balance the stress of the forward and reverse rotation of the servo motor 7. A set of lifting mechanisms drives the lifting plate 47 in the two rows of winding mechanisms to lift, the structure design is reasonable, and the occupied space is saved. In actual work, the number of rotations of the output shaft of the servo motor 7 is less than one revolution, generally half a revolution and half a revolution, to realize the lifting of the lifting plate 47, the radius of the double sprocket 12 is greater than the radius of the driven sprocket 1101, and the radius ratio of the driven sprocket 1101 and the double sprocket 12 is used to realize the displacement amplification of the lifting chain 17.

[0040] In the embodiment, the upper and lower reversing switches are two limit switches 9, the output shaft of the servo motor 7 is coaxially fixedly connected with an extension shaft 8, a detection block is arranged on the extension shaft 8, an installation frame 901 is arranged around the extension shaft 8, and the installation frame 901 is provided with two limit switches 9 for sensing the position of the detection block, so as to control the forward and reverse directions and angles of the output shaft. In addition, two limit switches 9 are further arranged on the installation frame 901 as upper and lower stop switches, the limit positions of the upward and downward movements of the steel ring plate 37 are limited, the overhanging of the steel ring plate 37 caused by the fault of the central control PLC is prevented, the machine is stopped, and the overhanging of the steel ring plate 37 is prevented.

[0041] As a further optimization, the steel ring plate 37 is vertically provided with a baffle 35 on the left and right sides, a guide groove 36 is formed on the baffle 35 along the vertical direction, and a limit block 38 is fixedly connected to the left or right side of the steel ring plate 37 and can slide up and down along the guide groove 36. The upper and lower reversing switches can also be proximity switches arranged on the upper and lower ends of the yarn pipe 43 and installed on the baffle 35 to detect the position of the steel ring plate 3. Alternatively, the upper and lower reversing switches are proximity switches arranged on the side of the lifting plate 47 to detect the position of the lifting plate 47. For the above two setting modes of the reversing switches, the upper and lower stop switches can be arranged on the upper side of the upper proximity switch and the lower side of the lower proximity switch respectively to limit the limit positions of the upward and downward movements of the steel ring plate 37.

[0042] The lifting mechanism can also use an electric screw or a telescopic oil cylinder to directly control the lifting of the lifting plate 47.

[0043] As shown in Figures 6-8 the line mechanism includes a plurality of first mounting plates 18 arranged uniformly along the vertical direction and a plurality of yarn insertion seats 19 arranged on the first mounting plates 18, the yarn insertion seats 19 are used to install the tubes 20, a second mounting plate 21 is arranged below the first mounting plate 18, a fifth mounting frame 22 in the shape of C or L is mounted on the second mounting plate 21, the horizontal part of the fifth mounting frame 22 is fixedly connected with the second mounting plate 21, a guide rod 23 is arranged on the vertical part of the fifth mounting frame 22 corresponding to the yarn insertion seat 19, the upper end of the guide rod 23 is fixed on the vertical part, and the lower end is provided with a spiral part 2301, so that the yarn is wound around the spiral part 2301, preventing the yarn from knotting, and the yarn can be wound around the guide rod 23 several times before being wound around the spiral part 2301, preventing the yarn from loosening and jumping; a fourth mounting frame 30 is arranged below the second mounting plate 21, three broken-end automatic stoppers are horizontally arranged on the fourth mounting frame 30, a comb plate 27 is arranged at the front of the broken-end automatic stopper, a plurality of combs are uniformly arranged on the top of the comb plate 27, and two extrusion rollers 29 are arranged below the comb plate 27 and abut against each other, one of the extrusion rollers 29 abuts against a driving roller 31, and the rotating shaft 32 of the driving roller 31 is connected with a rotating mechanism. The comb plate 27 and the extrusion rollers 29 are arranged on the fourth mounting frame 30.

[0044] As a further optimization, a third mounting frame 25 is mounted on the second mounting plate 21 below the fifth mounting frame 22, the third mounting frame 25 is located above the broken-end automatic stopper, two roller cylinders 24 are mounted on the third mounting frame 25, the upper roller cylinder 24 is located at the rear side of the lower roller cylinder 24, the yarn is wound around the rear side of the upper roller cylinder 24 and then wound around the front side of the lower roller cylinder 24, so that the yarn can be smoothly conveyed and prevent the yarn from loosening and jumping; a horizontal rod 28 is horizontally arranged at the front of the broken-end automatic stopper on the fourth mounting frame 30, so that the yarn is wound around the upper side of the horizontal rod 28 after passing through the comb plate 17, and then is wound around the front side of the upper extrusion roller 29, the rear side of the lower extrusion roller 29 and the front side of the driving roller 31. The horizontal rod 28 is not necessarily arranged, the lower extrusion roller 29 abuts against the driving roller 31, and preferably, the two upper extrusion rollers 29 and the axis of the driving roller 31 are located on the same vertical plane. A driving mechanism is arranged on the fourth mounting frame 30, so that the extrusion rollers 29 and the driving roller 31 on the fourth mounting frame 30 can be separated, which is a conventional technical means and will not be described in detail here.

[0045] The broken yarn automatic stopper is a common mechanism in the spinning field, which stops the yarn conveying when the yarn is used up or broken. As an embodiment, the broken yarn automatic stopper comprises a self-stop needle 26 with a ring-shaped upper end, which is lifted by the yarn during spinning, and falls down naturally when the yarn is used up or broken, and is pushed by a beater on the self-stop shaft, thereby pulling the clutch in the spindle 42 through a connecting rod to stop the rotation of the bobbin 43, and tilting the fourth mounting frame 30 through a driving mechanism to separate the pressing roller 29 from the driving roller 31 to stop the yarn running.

[0046] The bottom of the spindle 42 is fixed with a placing table 44, the bottom of the bobbin 43 is provided with a key groove, and the top of the placing table 44 is provided with a key corresponding to the key groove, so that after the bobbin 43 is sleeved on the spindle 42, the key groove and the key are engaged together, and the bobbin 43 can rotate with the spindle 42. The spindle 42 is composed of an outer spindle tube and an inner spindle core, and the clutch is arranged in the placing table 44. During spinning, the spindle tube and the spindle core are combined together under the action of the clutch to drive the bobbin 43 to rotate, and after the yarn is used up or broken, the clutch separates the spindle tube and the spindle core, and only the spindle core rotates. The above is the basic principle of the spindle 42, which is a conventional technical means in the art and will not be described in detail here.

[0047] The rotating mechanism 45 comprises a spindle disc connected to the bottom of the spindle core, which is coaxially connected to the spindle core and supported by the bearing in the spindle leg at the bottom, and connected to the main shaft under the action of the spindle belt. The two spindles on each side of the lifting mechanism are a group, and the four spindles 42 rotate under the driving of the main shaft. The rotating mechanism 45 is a conventional technical means, which will not be described in detail here.

[0048] The nylon hook 41 is made of nylon material, which is hung on the limiting plate 40 through the open hook. The nylon hook 41 can be rotated around the limiting plate 40 on the steel ring plate 37 by being pulled, and there is a friction force between them. The friction force is generated by the friction between the nylon hook 41 and the steel ring plate 37, and the friction force is closely related to the weight of the nylon hook 41 itself and the tension of the yarn on the nylon hook 41. If the nylon hook 41 is not suitable, the speed of the spindle 42 is not reasonable, the contact position of the nylon hook 41 and the steel ring plate 37 will not be ideal, and the friction force will not be suitable. The nylon hook 41 should be selected according to the thickness of the yarn and the speed of the spindle 42 to ensure the size of the friction force between the nylon hook 41 and the steel ring plate 37. According to the thickness of the yarn and the speed of the spindle 42, different types of weights are used to ensure that the nylon hook 41 and the limiting plate 40 have a suitable friction force. If the yarn is thick, the centrifugal force generated during rotation is large, so a heavier nylon hook is used to ensure the friction force; if the twist is small and the spindle 42 rotates slowly, the yarn must have enough dragging force to be wound on the bobbin, so a heavier nylon hook 41 is needed to increase the friction force.

[0049] The working principle of the plying machine is that the rollers (extrusion roller 29 and driving roller 31) control the yarn movement, and the yarn moves about 30 meters per minute, the spindle rotates at 2000-4000 revolutions per minute (specifically according to the twist setting), and drives the yarn to rotate. Since the yarn at the upper end of the spindle 42 is controlled by the rollers and does not rotate, the twist is increased, and the multiple yarns are twisted together. The speed of the nylon hook 41 around the limiting plate 40 is lower than that of the bobbin 43, and the yarn is wound on the bobbin 43, thereby realizing the twisting and winding of the yarn at the same time. Among them, the twist of the yarn is determined by the process and cannot be changed, and the only variable is the speed of the car (the speed of the spindle 42), and the overall lifting speed of the steel ring plate 37 is also adjustable, generally not adjusted. Because the lifting speed of the steel ring plate 37 and the twist degree are related, the smaller the twist, the faster the lifting speed, which meets the requirements of winding. Unless the number of plied yarns is too many or too few, the lifting speed should be adjusted appropriately.

[0050] Specific working mode:

[0051] First, the yarns on the three bobbins 20 in the plying mechanism pass through the spiral part 2301 of the guide rod 23, then pass through the two roller cylinders 24, then pass through the broken yarn self-stopper, then pass through the gap between the same adjacent teeth of the comb plate 27, then pass through the two driving rollers 29 and the driving roller 31 from above the cross rod 28, then pass through the guide porcelain cup 33 of the winding mechanism, and finally pass through the nylon hook 41, and then move up and down with the lifting plate 37, and are wound on the rotating bobbin 43.

[0052] In order to realize the regular and full formation of the yarn on the bobbin 43, improve the yarn weight, improve the quality, and prevent the yarn from falling off during shaking, the yarn is wound in the following way:

[0053] When winding by the winding mechanism, the yarn pipe 43 is controlled to rotate by the rotating mechanism 45 in the winding mechanism. First, the ring plate 37 is controlled to move downward to the lowest by the lifting mechanism, the lower reversing switch sends a signal to the central control PLC, the lifting mechanism controls the ring plate 37 to reverse and move upward until the upper ring switch detects the ring plate 37, the upper reversing switch sends a signal to the central control PLC, the ring plate 37 is controlled to move downward next time, which is a small cycle. The central control PLC records this cycle and the maximum displacement of the ring plate 37 moving upward in this cycle. Assuming that the yarn diameter is L, in the next cycle, the maximum displacement of the ring plate 37 moving upward is reduced by L millimeters. In each cycle, the maximum displacement of the ring plate 37 moving upward is reduced by L millimeters than the previous cycle until the ring plate 37 moves upward to the maximum displacement and is just located at the junction of the cylindrical part 4301 and the conical part 4302 of the yarn pipe 43. Assuming that the height of the conical part 4302 is H millimeters, the cycle number of this time is H / L, which is called a large cycle. In the next cycle, the maximum displacement of the ring plate 37 moving upward is increased by L millimeters than the previous cycle until the upper reversing switch can detect the ring plate 37 again. The cycle number of this time is H / L, which is also called a large cycle. After several large cycles, the yarn on the cylindrical part 4301 of the lower part of the yarn pipe 43 is wound into a normal cylindrical shape, the yarn on the conical part 4302 of the upper part of the yarn pipe 43 is wound into a conical or cylindrical shape, and the chamfer of the upper part of the yarn pipe 43 is filled to make the shape full and not to be off the ring when shaking the yarn.

[0054] The conical part 4302 is actually a reversed conical frustum, and the taper = (upper base diameter - lower base diameter) ÷ height. Taking the circular cone angle = 90 degrees, i.e. the taper = 2 as an example, assuming that the height of the conical part 4302 is 10 mm and the diameter of the doubled yarn is 1 mm, the maximum displacement of the upper part of the ring plate 37 changes by 1 mm in each cycle. One large cycle, i.e. 10 cycles, can make the yarn on the whole yarn pipe 43 be wound, in which the yarn outline on the conical part 4302 of the upper end is conical and the yarn outline on the cylindrical part 4301 of the lower end is cylindrical. If the taper of the conical part 4302 = 4, the yarn outline on the conical part can be cylindrical, and the yarn outline on the whole yarn pipe 43 can be cylindrical. The premise of the above example is that the yarn pipe 43 rotates one circle when the ring plate 37 moves 1 mm. If the yarn pipe 43 rotates half a circle when the ring plate 37 moves 1 mm, the taper of the conical part 4302 = 2 when one large cycle can make the conical part 4302 have a cylindrical outline. In the example, the spindle 42 rotates 3-5 circles and the nylon hook 41 rotates 2-4 circles during the lifting of the ring plate 37 by 1 mm. The speed difference between the spindle 42 and the nylon hook 41 makes the yarn be wound one circle on the yarn pipe 43.

[0055] Therefore, by adjusting the rotating speed of the yarn tube 43, the yarn outer profile on the conical part 4302 can be adjusted. In specific operation, according to the matching between the taper size of the upper conical part 4302 of the yarn tube 43 and the rotating speed of the rotating mechanism 45, the chamfer of the upper part of the yarn tube 43 is filled, so that the formed rule is full. The faster the yarn tube 43 rotates, the more the yarn wound on the conical part 4302 tends to be a positive cone, and vice versa. In order to make the yarn wound on the conical part 4302 regular and full, the rotating speed of the yarn tube 43 is adjusted, so that the yarn wound on the conical part 4302 tends to be a cylinder.

[0056] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A yarn doubling device characterized by: It includes the mechanism, the mechanism and the mechanism of winding yarn and lifting mechanism, and the mechanism is used for merging together the multiple yarns, the winding mechanism and the lifting mechanism cooperate to wind the multiple yarns after merging on the yarn tube (43), the lower part of the yarn tube (43) is cylindrical, and the upper end is inverted conical; The winding mechanism includes a spindle (42) arranged vertically, a rotating mechanism for driving the spindle (42) to rotate, and a ring plate (37) arranged outside the spindle (42), the middle part of the ring plate (37) is provided with an avoiding hole (3701), the edge of the avoiding hole (3701) is provided with an annular limiting plate (40), the limiting plate (40) is provided with a nylon hook (41) which can rotate along the limiting plate (40), and the ring plate (37) is connected with the lifting mechanism; The spindle (42) is provided with a guide yarn porcelain cup (33) above; The spindle (42) is fixed with the yarn tube (43); it also includes an upper reversing switch and a lower reversing switch for reversing the ring plate (37) on the upper end and the lower end of the yarn tube (43).

2. A yarn doubling device according to claim 1, characterized in that: The upper reversing switch and the lower reversing switch are proximity switches arranged on the upper and lower end sides of the yarn tube (43), which are used to detect the position of the ring plate (37).

3. A yarn doubling device according to claim 1, characterized in that: The ring plate (37) is connected with the connecting plate (46), the winding mechanism is uniformly arranged in the horizontal direction, the connecting plates (46) of the multiple winding mechanisms are connected with the same lifting plate (47), and the lifting mechanism is used to drive the lifting plate (47) to move up and down.

4. A yarn doubling device according to claim 3, characterised in that: The lifting mechanism includes a driving sprocket (6), a steering sprocket (4), a driven sprocket (1101), a double sprocket (12) and a transmission sprocket (16), the double sprocket (12) is arranged on the first distribution shaft (11), one end of the first distribution shaft (11) near the steering sprocket (4) is provided with the driven sprocket (1101), and the transmission sprocket (16) is arranged on the second distribution shaft (15); The driving sprocket (6) is installed on the output shaft of the servo motor (7), the first chain (10) is fixedly arranged on the driving sprocket (6), the other end of the first chain (10) is connected with the driven sprocket (1101) after passing through the steering sprocket (4); The double sprocket (12) is fixedly connected with a bearing chain (13), the lower end of the bearing chain (13) is connected with a counterweight (14); The double sprocket (12) is fixedly connected with a lifting chain (17), the lifting chain (17) is connected with the lifting plate (47) after passing through the transmission sprocket (16), the lifting plate (47) is provided with a plurality of guide holes, and a guide rod (48) is vertically arranged in the guide hole.

5. A yarn doubling device according to claim 4, characterised in that: The doubling mechanism and the winding mechanism are symmetrically arranged in two rows, and the lifting mechanism is arranged between the two rows of winding mechanisms; two double sprockets (12) and two transmission sprockets (16) are arranged respectively, the two double sprockets (12) are arranged at the two ends of the first distribution shaft (11), the two transmission sprockets (16) are arranged at the two ends of the second distribution shaft (15), one bearing chain (13) is fixedly connected to each of the two double sprockets (12), and two lifting chains (17) are fixedly connected to the two double sprockets (12) respectively, and the two lifting chains are connected to two lifting plates (47) in the two rows of winding mechanisms arranged symmetrically.

6. A yarn doubling device according to claim 5, characterised in that: The upper and lower reversing switches are proximity switches arranged on the side of the lifting plate (47) and used to detect the position of the lifting plate (47), or The output shaft of the servo motor (7) is coaxially fixedly connected with an extension shaft (8), the extension shaft (8) is provided with a detection block, and the upper and lower reversing switches are limit switches (9) arranged around the extension shaft (8) and used to sense the position of the detection block and control the forward and reverse directions and angles of the output shaft.

7. A yarn doubling device according to claim 1, characterized in that: The doubling mechanism comprises a plurality of first mounting plates (18) arranged uniformly along the vertical direction and a yarn inserting seat (19) arranged on the first mounting plate (18), the yarn inserting seat (19) is used for mounting a cheese (20), a second mounting plate (21) is arranged below the first mounting plate (18), a C-shaped or L-shaped fifth mounting frame (22) is mounted on the second mounting plate (21), a guide rod (23) is arranged on the fifth mounting frame (22) in one-to-one correspondence with the yarn inserting seat (19), and a spiral portion (2301) is arranged at the lower end of the guide rod (23); a fourth mounting frame (30) is arranged below the second mounting plate (21), three broken yarn self-stoppers are horizontally arranged on the fourth mounting frame (30), a comb plate (27) is arranged at the front of the broken yarn self-stoppers, two extrusion rollers (29) are arranged below the comb plate (27) and abut against each other, one of the extrusion rollers (29) abuts against a driving roller (31), and the rotating shaft (32) of the driving roller (31) is connected with a rotating mechanism.

8. A yarn doubling device according to claim 7, characterised in that: A third mounting frame (25) is mounted on the second mounting plate (21) below the fifth mounting frame (22), the third mounting frame (25) is located above the broken yarn self-stoppers, and two roller cylinders (24) are mounted on the third mounting frame (25); a horizontal rod (28) is arranged at the front of the broken yarn self-stoppers on the fourth mounting frame (30).

9. A yarn doubling device according to claim 1, characterized in that: The steel ring plate (37) is vertically provided with a baffle (35) on the left and right sides, a guide groove (36) is formed in the baffle (35) along the vertical direction, and a limiting block (38) that can slide up and down along the guide groove (36) is fixedly connected to the left or right side of the steel ring plate (37).

10. A yarn doubling device according to claim 1, characterized in that: An upper stop switch and a lower stop switch are further arranged to limit the limit positions of the upward and downward movements of the steel ring plate (37). An upper stop switch and a lower stop switch are further arranged to limit the limit positions of the upward and downward movements of the steel ring plate (37).

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