CN111593444A

CN111593444A - Two-for-one twister with broken string detects function

Info

Publication number: CN111593444A
Application number: CN202010486793.8A
Authority: CN
Inventors: 宋良亮
Original assignee: Individual
Current assignee: Ye Dejiang
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-08-28
Anticipated expiration: 2040-06-01
Also published as: CN111593444B

Abstract

The invention relates to the technical field of spinning. The double twister with the broken thread detection function is capable of accurately detecting the broken thread condition and has a simple structure, and comprises a broken thread detection device; the broken wire detection device comprises two horizontally arranged T-shaped fixed battens which are parallel to each other, a first wire guide wheel and a second wire guide wheel are arranged between T-shaped heads of the two fixed battens, the first wire guide wheel is positioned and installed between the lower ends of the T-shaped heads of the fixed battens, vertical strip-shaped holes are formed in the T-shaped heads of the fixed battens, shaft levers at two ends of the second wire guide wheel are matched with the strip-shaped holes, and the shaft lever of the second wire guide wheel is installed in the strip-shaped holes and can freely slide in the strip-shaped holes; and a third wire guide wheel is arranged between the overhanging ends of the T-shaped rod parts of the fixed strips. The invention can quickly and accurately detect whether the two-for-one twister is broken or not, and has simple structure.

Description

Two-for-one twister with broken string detects function

Technical Field

The invention relates to the technical field of spinning, in particular to a two-for-one twister with a broken yarn detection function.

Background

The twisting machine is a textile device which is applied to the textile industry and is used for twisting yarns so as to improve the detailed performance of the yarns and the appearance of the yarns. The double twister is an improved device for twisting yarns in multiples as the name implies, the double twister performs secondary twisting on the yarns through the rotation of the hollow rotating rod of the twisting spindle and the twisting disc, and compared with the traditional twisting machine, the double twister has higher twisting speed and greatly improves the production efficiency of the yarns. The traditional two-for-one twister mainly comprises a two-for-one twisting device and a winding device, wherein the two-for-one twisting device carries out secondary twisting on yarns through a rotating rod and a twisting disc, the twisted yarns are wound and stored through the winding device, and the yarns are made into cloth through subsequent spinning procedures. In recent years, with the increasing demand of the market for high-quality textiles, the demand for the capacity of the two-for-one twister is also higher, and the defects exposed by the traditional two-for-one twister in the using process are also more and more, which mainly include the following aspects:

firstly, the yarn is influenced by factors such as raw material quality and mechanical stability in the twisting process, the yarn breakage condition can be inevitably caused, when the yarn breakage occurs, the conventional mode is to inspect equipment manually, and the equipment is actively shut down to prevent the problem of yarn breakage. However, this method occupies a large amount of human resources, and has poor stability and persistence, which increases risks in the working process of the two-for-one twister, and although some broken thread detection devices capable of detecting broken threads appear on the market at present, these devices have poor stability and single function.

And secondly, the two-for-one twister should be stopped in time after detecting the broken yarn so as to avoid the more serious equipment damage caused by the winding of the broken yarn in the equipment. However, if the two-for-one twisting device is directly braked and stopped, a great burden is caused to driving devices such as a driving motor and a transmission gear, frequent maintenance is required, and even more, the driving devices are directly damaged, so that the service life of the equipment is seriously influenced. Therefore, the two requirements of the broken wire sudden stop and the slow stop are mutually contradictory on the two-for-one twister, particularly on the high-speed two-for-one twister. Therefore, how to reduce the load of the driving device as much as possible while rapidly stopping the machine is a big problem in the field of two-for-one twisters.

Third, it is well known to those in the textile industry that: in the high-speed two-for-one twisting process, a section of yarn from a side hole of a rolling disc to a yarn collector is guided out, in the high-speed rotating process of a two-for-one twisting device, a balloon can be formed by large air resistance, the balloon shape has large influence on the two-for-one twisting quality, the two-for-one twisting speed, the hairiness shape of a product, the twisting uniformity of the product and the like, the traditional two-for-one twisting machine mainly comprises a tension adjusting ball arranged inside a hollow rotating rod, the yarn is rubbed by the tension adjusting ball, the tension of the yarn is stable, and the balloon is maintained in a stable shape. However, the balloon formed in this way is only stable in shape, but is often large, which results in large overall energy consumption and serious noise of the twisting device in the operation process, and meanwhile, the tension adjusting ball causes much hairiness and high yarn breakage risk of the product due to large abrasion to the yarn.

Disclosure of Invention

The invention aims to provide a two-for-one twister which can accurately detect the broken yarn condition and has a simple structure and a broken yarn detection function.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a two-for-one twister with a broken wire detection function comprises a winding device, a broken wire detection device, a wire collector and a twisting device which are sequentially arranged on a rack from top to bottom; the yarn sequentially passes through the twisting device, the yarn collector and the broken yarn detection device and then is wound on the winding device;

the broken wire detection device comprises two horizontally arranged T-shaped fixed battens which are parallel to each other, a first yarn guide wheel and a second yarn guide wheel are arranged between T-shaped heads of the two fixed battens, the first yarn guide wheel is positioned and installed between the lower ends of the T-shaped heads of the fixed battens, vertical strip-shaped holes are formed in the T-shaped heads of the fixed battens, shaft levers at two ends of the second yarn guide wheel are matched with the strip-shaped holes, and the shaft lever of the second yarn guide wheel is installed in the strip-shaped holes and can freely slide in the strip-shaped holes; a third wire guide wheel is arranged between the overhanging ends of the T-shaped rod parts of the fixed battens; the broken wire detection device also comprises a detection assembly for detecting the position of the second godet wheel in the strip-shaped hole; the yarn orderly rounds a first godet wheel, a second godet wheel and a third godet wheel in a zigzag shape.

Preferably, the T-shaped rod part of the fixed slat is composed of a fixed section and a sliding section, a sliding groove matched with the sliding section is formed in the inner surface of the fixed section, and the sliding section is located in the sliding groove and is locked with the sliding groove through a locking assembly; the third godet wheel is mounted between the ends of the sliding section.

Preferably, the locking assembly comprises a sliding hole which is arranged on the fixed section and extends along the length direction of the fixed section, and a threaded column which is fixedly arranged on the outer surface of one end of the sliding section far away from the third godet wheel, and the end part of the threaded column is matched with a locking nut; the threaded column of the sliding section is arranged in the sliding hole in a penetrating mode and locked with the fixing section through a locking nut.

Preferably, the detection assembly comprises an L-shaped crank arm fixedly arranged at the end part of the second guide wire wheel shaft and a supporting plate arranged at the lower end, close to the T-shaped head part, of the fixed strip plate; the alarm is characterized in that a first electrode and a second electrode are respectively arranged on the crank arm and the supporting plate, the first electrode and the second electrode are opposite in position and are respectively electrically connected with the alarm through a wire, and a power supply is connected in series on the wire between the alarm and the second electrode.

Preferably, the detection assembly comprises a proximity sensor mounted at the lower end of the T-shaped head of the fixed slat, and a proximity body mounted at the end of the second guide roller shaft and located opposite to the proximity sensor.

Preferably, a reinforcing connecting rod is further arranged between the two fixing laths.

Preferably, the twisting device comprises a twisting mechanism and a driving mechanism for driving the twisting mechanism to act; the driving mechanism is in transmission connection with a first transmission rod on the twisting mechanism;

the driving mechanism comprises a second transmission rod positioned on one side of the first transmission rod, and the second transmission rod is arranged on the rack through a second bearing; the first transmission rod and the second transmission rod are respectively provided with a first gear and a second gear, and the first gear and the second gear are meshed with each other;

the lower end of the second transmission rod is in transmission connection with a rotating shaft of the twisting motor through a magnetic clutch transmission assembly; the magnetic clutch transmission assembly comprises a first connector and a second connector which are respectively fixed on the second transmission rod and the rotating shaft of the twisting motor, the first connector and the second connector are mutually matched, the first connector and the second connector are respectively cylindrical and cylindrical, and the first connector is sleeved outside the second connector; the inner side wall of the first connector is embedded with a first bar-shaped magnet, the outer side wall of the second connector is embedded with a second bar-shaped magnet, the first bar-shaped magnet and the second bar-shaped magnet are in one-to-one correspondence, and connecting lines of two poles are positioned on the same straight line; an included angle a between a connecting line of two poles of the first bar magnet and the second bar magnet and a radial line of the first connecting head is between 40 and 80 degrees; the opposite two poles of the first bar magnet and the second bar magnet are the same in magnetism; the second connector on the rotating shaft of the twisting motor can be withdrawn or extend into the first connector under the driving of the lifting assembly.

Preferably, a circle of annular shoulder is further arranged on the circumferential surface of the bottom of the first connecting head, a cylindrical connecting sleeve is arranged on the upper surface of the outer edge of the shoulder, and the connecting sleeve is sleeved outside the first connecting head; a plurality of third bar magnets are embedded on the inner side wall of the connecting sleeve, the third bar magnets correspond to the first bar magnets one by one, and the connecting lines of the two stages are positioned on the same straight line; and the third bar magnet and the first bar magnet have opposite polarities.

Preferably, a center hole vertically penetrating through the second gear, the second transmission rod and the first connecting joint is formed in the center of the second gear; a matched pull rod penetrates through the central hole, the lower end of the pull rod is fixedly connected with the second connector, and the upper end of the pull rod is connected with the brake block through a rotary connector; still be provided with the pole setting in the frame of second gear one side, the pole setting is provided with vertical guide slot towards the side of second gear, one side of brake block is provided with the slider with guide slot matched with, the slider is installed in the guide slot.

Preferably, the top surface of the second gear is provided with a circular truncated cone-shaped contact part, and the lower surface of the brake block is provided with a groove matched with the contact part.

The beneficial effects of the invention are concentrated and expressed as follows: whether the two-for-one twister breaks can be detected quickly and accurately, and the structure is simple. Specifically, in the use process of the yarn breakage detection device, the yarn sequentially passes through the first godet wheel, the third godet wheel and the second godet wheel in a normal state, and at the moment, the second godet wheel is in a high position state because the yarn has enough tension and has a supporting function on the second godet wheel. When the yarn is broken, the tension of the yarn is reduced, the yarn loses the supporting effect on the second godet wheel, the second godet wheel slides downwards along the strip-shaped hole, the detection assembly detects the position change of the second godet wheel, and then the yarn breaking condition is fed back to a general control system of the two-for-one twister. The invention realizes the real-time online detection of the yarn breaking condition of the two-for-one twister through a simple structure, saves a large amount of labor cost generated by manpower inspection, and has good accuracy and strong detection continuity.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the disconnection detecting device;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic structural view of the twisting device;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic structural view of the yarn guide tube in the structure shown in FIG. 5 when the yarn guide tube is extended;

FIG. 7 is a schematic view of a connection structure of the first connector and the second connector;

FIG. 8 is a schematic diagram of a preferred embodiment of the structure shown in FIG. 7;

fig. 9 is a schematic structural view of the yarn guide tube.

Detailed Description

As shown in fig. 1 to 9, a two-for-one twister with a broken thread detecting function, similar to a conventional two-for-one twister, includes a winding device 2, a broken thread detecting device 3, a filament collector 4 and a twisting device 5, which are sequentially arranged on a frame 1 from top to bottom. The yarn sequentially passes through the twisting device 5, the silk collector 4 and the broken yarn detection device 3 and then is wound on the winding device 2. The winding device 2 is used for winding and collecting the double-twisted yarns, the broken yarn detection device 3 is used for detecting whether the yarns on the double-twisting machine are broken or not, the yarn collector 4 is used for guiding and gathering the yarns, and the twisting device 5 is used for twisting the yarns so as to improve the qualities of the yarns, such as toughness, appearance, strength and the like. Of course, besides the above-mentioned devices, the present invention can also be added with other two-for-one twisting related devices such as overfeeding device.

Compared with the traditional two-for-one twister, the invention mainly has the following advantages:

the yarn breakage detection method has the advantages that the yarn breakage condition of the yarn can be quickly and accurately detected, the machine is convenient to shut down and detect in time, and further upgrading of accidents is prevented.

As shown in fig. 2 and 3, the thread breakage detecting device 3 includes two parallel, horizontally disposed, T-shaped fixing strips 6, the two fixing strips 6 are disposed side by side, and a reinforcing link 23 is further disposed between the two fixing strips 6 to improve the structural stability between the two fixing strips 6. A first godet wheel 7 and a second godet wheel 8 are arranged between the T-shaped heads of the two fixed strips 6 and are used for allowing yarns to pass around, the first godet wheel 7 is installed in a positioned mode, the second godet wheel 8 is installed in a sliding mode, specifically, the first godet wheel 7 is installed between the lower ends of the T-shaped heads of the fixed strips 6 in a positioned mode, and vertical strip-shaped holes 9 are formed in the T-shaped heads of the fixed strips 6. The axostylus axostyle at 8 both ends of second godet wheel cooperatees with bar hole 9, and the axostylus axostyle of second godet wheel 8 is installed in bar hole 9 to can freely slide in bar hole 9. And a third wire guide wheel 10 is arranged between the overhanging ends of the T-shaped rod parts of the fixed strips 6. The yarn passes in a zigzag pattern around a first godet wheel 7, a second godet wheel 8 and a third godet wheel 10.

In addition, the thread breakage detecting device 3 further includes a detecting component for detecting the position of the second godet wheel 8 in the strip hole 9, and in a normal state, the yarn sequentially bypasses the first godet wheel 7, the third godet wheel 10 and the second godet wheel 8, and at this time, the second godet wheel 8 is in a high state because the yarn has sufficient tension and has a supporting effect on the second godet wheel 8. When the yarn is broken, the yarn tension is reduced, the yarn loses the supporting effect on the second godet wheel 8, the second godet wheel 8 slides downwards along the strip-shaped hole 9, the detection assembly detects the position change of the second godet wheel 8, and then the yarn breaking condition is fed back to a general control system of the two-for-one twister. The invention realizes the real-time online detection of the yarn breaking condition of the two-for-one twister through a simple structure, saves a large amount of labor cost generated by manpower inspection, and has good accuracy and strong detection continuity.

The detection assembly has more specific structures, for example: (1) the detection assembly comprises a proximity sensor and a proximity body, the proximity sensor is arranged at the lower end of the T-shaped head of the fixed strip plate 6, the proximity body is arranged at the end part of the shaft rod of the second godet wheel 8, and the position of the proximity body is opposite to that of the proximity sensor. When the yarn breaks, lose the bearing effect to second godet roller 8, second godet roller 8 slides down along bar hole 9 this moment, drives and approaches the body and moves down, but when approaching the body and being close to proximity sensor, proximity sensor is triggered to with information feedback to total control system, total control system is promoted to hold tightly. (2) As also shown in fig. 2, the sensing assembly includes an L-shaped crank arm 17 fixedly disposed at the end of the shaft of the second godet wheel 8 and a blade 18 disposed at the lower end of the T-shaped head of the fixed slat 6. The alarm is characterized in that a first electrode 19 and a second electrode 20 are respectively arranged on the crank arm 17 and the supporting plate 18, the positions of the first electrode 19 and the second electrode 20 are opposite, the first electrode 19 and the second electrode 20 are respectively electrically connected with an alarm 21 through wires, and a power supply 22 is connected in series on the wires between the alarm 21 and the second electrode 20. The action mechanism of the front section is equivalent to that of the structure, the second godet roller 8 slides downwards, but the difference lies in that the shaft lever of the second godet roller 8 directly drives the crank arm 17 to slide downwards, the first electrode 19 on the crank arm 17 descends to be in contact with the second electrode 20, the circuit is conducted, and the alarm 21 gives an alarm directly at the moment. Of course, a current sensor can be arranged on the circuit to realize signal feedback to the overall control system. The structure has the advantages of high corresponding speed, simplicity, easy processing and low equipment cost.

In addition, in order to realize the yarn tension adjustment, the invention may be better implemented by that, as shown in fig. 3, the T-shaped rod part of the fixed strip 6 is composed of a fixed section 11 and a sliding section 12, a sliding slot 13 matched with the sliding section 12 is arranged on the inner surface of the fixed section 11, and the sliding section 12 is positioned in the sliding slot 13 and is locked with the sliding slot 13 through a locking component. The third godet wheel 10 is mounted between the ends of the sliding section 12. After the method is adopted, the length of one section of the T-shaped rod part of the fixed strip plate 6 can be adjusted, so that the distance between the third godet wheel 10 and the first godet wheel 7 and the second godet wheel 8 is changed, and finally, the function of tension adjustment is realized.

The sliding section 12 has a large number of specific driving and locking structures, and in the simplest manner, as shown in fig. 2, the locking assembly includes a sliding hole 14 provided in the fixed section 11 and extending along the length of the fixed section 11, and a threaded post 15 fixedly provided on the outer surface of the sliding section 12 at an end thereof remote from the third godet wheel 10, and a locking nut 16 is fitted to an end of the threaded post 15. The threaded column 15 of the sliding section 12 is arranged in the sliding hole 14 in a penetrating manner and locked with the fixing section 11 through the locking nut 16, and the mode is simple in structure and convenient to implement, but the tension of the threaded column can be adjusted before starting up, and cannot be adjusted in a continuous working state of starting up. For this reason, the present invention may also employ a motor, an electric push rod, or other prime mover to effect displacement of the sliding section 12.

The invention can realize the quick power separation of the driving mechanism and the twisting mechanism, and provides a foundation for the emergency braking of the twisting mechanism on the premise of protecting the driving mechanism.

The twisting device 5 comprises a twisting mechanism and a driving mechanism for driving the twisting mechanism to act, wherein the driving mechanism is in transmission connection with a first transmission rod 24 on the twisting mechanism, and outputs power to the twisting mechanism through the first transmission rod 24.

In particular, as shown in fig. 4, 5, 7 and 8, the driving mechanism includes a second transmission rod 25 located on one side of the first transmission rod 24, and the second transmission rod 25 is mounted on the frame 1 through a second bearing. The first transmission rod 24 and the second transmission rod 25 are respectively provided with a first gear 26 and a second gear 27, and the first gear 26 and the second gear 27 are meshed with each other. The first gear 26 and the second gear 27 can be made of ceramic, and are wear-resistant and lighter in weight.

The lower end of the second transmission rod 25 is in transmission connection with a rotating shaft 29 of the twisting motor 28 through a magnetic clutch transmission component. As shown in fig. 5, the magnetic clutch transmission assembly includes a first connector 30 and a second connector 31 respectively fixed on the second transmission rod 25 and the rotating shaft 29 of the twisting motor 28, the first connector 30 and the second connector 31 are mutually matched, the first connector 30 and the second connector 31 are respectively cylindrical and cylindrical, and the first connector 30 is sleeved outside the second connector 31.

The magnetic clutch transmission assembly adopted by the invention is different from the traditional spline tooth meshing transmission mode, and the first connector 30 and the second connector 31 do not need to be in direct contact. Instead, as shown in fig. 7, a first bar magnet 32 is embedded on the inner side wall of the first connector 30, a second bar magnet 33 is embedded on the outer side wall of the second connector 31, the first bar magnet 32 and the second bar magnet 33 are in one-to-one correspondence, and the connection lines of the two poles are located on the same straight line. The included angle a between the connection line of the two poles of the first bar magnet 32 and the second bar magnet 33 and the radial line of the first connector 30 is between 40 and 80 degrees, theoretically, the larger the included angle between the two is, the better the transmission effect of the torque is, but considering the problem of the lifting combination of the second connector 31 and the first connector 30, the second connector 31 should be stably inserted into the first connector 31 in any lifting state, so a certain gap should be provided between the two to ensure the mutual interference of the lifting movement tracks. Because the first bar magnet 32 is located at the outer ring, the second bar magnet 33 is located at the inner ring, and the second bar magnet 33 is driven by the second connector 31 to rotate actively, the magnetic properties of the two opposite poles of the first bar magnet 32 and the second bar magnet 33 are set to be the same. The second connector 31 on the rotating shaft 29 of the twisting motor 28 can be driven by the lifting assembly to withdraw or extend into the first connector 30.

In the use process of the driving mechanism of the present invention, the twisting motor 28 drives the second connector 31 to rotate, the second connector 31 drives the first connector 30 to rotate, and further drives the second transmission rod 25 to rotate, the second transmission rod 25 transmits power to the first transmission rod 24 through the first gear 26 and the second gear 27, and finally drives the twisting mechanism to work. Because the first connector 30 and the second connector 31 are indirectly driven by the magnetic force between the bar magnets, and because no direct rigid contact exists between the parts, the abrasion rate and the heat generation rate are greatly reduced, lubrication is not needed, and the service life of the first connector 30 and the second connector 31 is greatly prolonged. When emergency conditions such as wire breakage, danger to personnel and the like occur, the lifting assembly can quickly drive the second connector 31 on the rotating shaft 29 of the twisting motor to quickly withdraw from the first connector 30 on the second transmission rod 25, so that the power transmission is released. Under the condition that the power is tripped, even if the twisting mechanism is rapidly and emergently braked and stopped, the twisting motor is not influenced. Therefore, the specially designed driving mechanism lays a solid foundation for the emergency braking of the twisting motor, and is particularly suitable for being popularized and applied to high-speed two-for-one twisters.

In addition, in order to further improve the transmission performance of the torque between the first connection head 30 and the second connection head 31, as shown in fig. 5 and 8, a ring of annular shoulder 34 is further disposed on the circumferential surface of the bottom of the first connection head 30, a cylindrical connection sleeve 35 is disposed on the upper surface of the outer edge of the shoulder 34, and the connection sleeve 35 is sleeved outside the first connection head 30. That is, the connecting sleeve 35 and the main body portion of the second connecting head 31 are arranged inside and outside, and the hole of the first connecting head 30 is clamped between the two. A plurality of third bar magnets 36 are embedded on the inner side wall of the connecting sleeve 35, the third bar magnets 36 correspond to the first bar magnets 32 one by one, and the connecting lines of the two stages are located on the same straight line. Because the first bar magnet 32 is located at the inner ring, the third bar magnet 36 is located at the outer ring, and the third bar magnet 36 is driven by the second connector 31 to rotate actively, two opposite poles of the third bar magnet 36 and the first bar magnet 32 are set to be opposite in magnetism, and more efficient power transmission is realized through a push-pull mode.

The specific structural form of the lifting component on the driving mechanism of the invention is more, for example: as shown in fig. 4, the lifting assembly includes an electric push rod 37 fixedly provided on the frame 1. The telescopic end of the electric push rod 37 faces downwards and is fixedly connected with an L-shaped mounting plate 38, and the twisting motor 28 is fixedly arranged on the mounting plate 38. The electric push rod 37 drives the mounting plate 38 to move, and further drives the twisting motor 28 to move up and down, and finally drives the second connector 31 to move up and down. Of course, in consideration of the structural strength of the mounting plate 38, triangular reinforcing plates 42 may be disposed between two sides of the mounting plate 38 and between one side of the mounting plate 38 and the connecting portion 39. Considering the stability of the lifting of the mounting plate 38, one end of the mounting plate 38 above the mounting plate is bent to form a connecting portion 39, a vertical guide rod 40 is arranged on the connecting portion 39, the guide rod 40 penetrates through a guide pipe 41 on the rack 1 and forms a sliding fit with the guide pipe 41, and the lifting of the mounting plate 38 is more stable and reliable through the cooperation of the guide rod 40 and the guide pipe 41. Of course, it is also possible to use a prime mover such as a lead screw-nut pair or an air cylinder as a driving member to drive the mounting plate 38 to move up and down, or to directly drive the twisting motor 28 to move up and down.

In conjunction with the aforementioned drive mechanism, the present invention can be provided with a brake assembly directly on the first drive rod 24 of the twisting mechanism, the twisting disc being braked directly by the brake. However, it is preferable that the center of the second gear 27 is provided with a center hole vertically penetrating through the second gear 27, the second transmission rod 25 and the first connecting head 30. A matched pull rod 43 penetrates through the central hole, the lower end of the pull rod 43 is fixedly connected with the second connector 31, and the upper end of the pull rod 43 is connected with a brake block 44 through a rotary connector. When the second connector 31 descends, it can drive the brake block 44 to descend together through the pull rod 43, and the brake is realized through the contact of the brake block 44 and the disk surface of the second gear 27. Of course, a vertical rod 45 is further disposed on the frame 1 on one side of the second gear 27, a vertical guide groove 46 is disposed on one side of the vertical rod 45 facing the second gear 27, a sliding block 47 matched with the guide groove 46 is disposed on one side of the brake block 44, and the sliding block 47 is installed in the guide groove 46. The design of the sliding block 47 and the guiding groove 46 ensures the stability of the lifting of the brake block 44, and simultaneously prevents the brake block from being driven to rotate by the second connecting head 31.

In order to improve the braking effect of the brake pad 44 on the second gear 27, the top surface of the second gear 27 is provided with a truncated cone-shaped contact portion 48, and the lower surface of the brake pad 44 is provided with a groove which is matched with the contact portion 48. To further increase the friction, the top surface of the contact portion 48 and the bottom surface of the brake block 44 are each provided with a rubber layer.

Third, the invention can make the balloon form reach the real-time best working condition through the extension and retraction of the yarn guide tube 56, improve the quality of the twisted product and reduce the power consumption.

Specifically, as shown in fig. 5 and 6, the twisting mechanism of the present invention also includes a twisting disk 49, a hollow twisting rod 50 is vertically disposed at the center of the top of the twisting disk 49, a first transmission rod 24 is vertically disposed at the center of the bottom of the twisting disk 49, and the first transmission rod 24 is mounted on the frame 1 through a first bearing. A side hole 51 penetrating through the side wall of the twisting disk 49 and the inner hole of the twisting rod 50 is radially arranged in the twisting disk 49, and the side hole 51 and the inner hole of the twisting rod 50 are in arc transition. A supporting platform 53 for placing the yarn barrel 52 is arranged above the twisting disk 49, and the supporting platform 53 is preferably in a frustum shape, so that the adaptability is better. The yarn of the invention is led out from a yarn barrel 52, an inner hole of a twisting rod 50 and a side hole 51 of a twisting disc 49 in sequence and then is guided to a silk collector 4, and the invention is characterized in that: a yarn guide tube 56 is arranged in the side hole 51 of the twisting disk 49, and the yarn guide tube 56 can be retracted into the side hole 51 or extended out of the side hole 51 under the driving of the telescopic driving assembly.

In the use process of the two-for-one twisting mechanism, the yarn barrel 52 is placed on the supporting table 53, the driving mechanism is started to drive the first transmission rod 24 to rotate, and then the twisting disc 49 and the twisting rod 50 are driven to rotate, so that the twisting of the yarn is realized. In the twisting process, the length of the yarn guide tube 56 extending out of the side hole 51 can be changed, and the yarn is guided to the yarn collector from the outer end of the yarn guide tube 56, so that the telescopic length of the yarn guide tube 56 can be reasonably adjusted according to the real-time condition of the yarn under the premise of not influencing the normal unwinding of the yarn bobbin 52, and further the balloon reaches the real-time optimal size, and compared with the traditional twisting mechanism, the invention has the advantages of lower energy consumption, lower noise and higher quality of the produced product.

As to how the yarn guide tube 56 is driven, the present invention may take many specific forms, for example: the telescopic driving assembly comprises a micro hydraulic push rod 54 fixed on the bottom surface of the twisting disc 49 corresponding to the yarn guide tube 56, the telescopic direction of the telescopic end of the micro hydraulic push rod 54 is consistent with the radial direction of the twisting disc 49, and the telescopic end of the micro hydraulic push rod 54 is fixedly connected with the outer end of the yarn guide tube 56 through a short rod 55. By the extension and contraction of the micro hydraulic push rod 54, the short rod 55 drives the yarn guide tube 56 to move in the side hole 51. Because the twisting disk 49 is in a high-speed rotating state, the oil path communication mode of the micro hydraulic push rod 54 can be as follows: as shown in fig. 5, an oil passing hole 57 is provided inside the first transmission lever 24, and the oil passing hole 57 communicates with the hydraulic oil path of the micro hydraulic push rod 54. The lower end of the first transmission rod 24 is communicated with the pumping and discharging pipeline 58 through a rotary joint. Of course, the micro hydraulic push rod 54 may be replaced by a micro electric push rod or the like, but is not well suited for being arranged on the high-speed rotating twisting disk 49 due to its relatively complicated circuit layout.

As the length of the yarn guide tube 56 extending out of the side hole 51 increases, it inevitably experiences a certain wind resistance during the high-speed rotation by the twisting disk 49. In order to reduce the influence of the wind resistance, as shown in fig. 9, a wind resistance buffering sleeve 59 is sleeved on the circumferential surface of the yarn guide tube 56, and the wind resistance buffering sleeve 59 and the yarn guide tube 56 form a rotating fit. In order to prevent the wind resistance buffer sleeve 59 from moving, the circumferential surfaces of the two ends of the yarn guide tube 56 are provided with limit rings 60, and the wind resistance buffer sleeve 59 is positioned between the limit rings 60. Through the wind resistance buffer sleeve 59, part of wind resistance can be converted into the rotary driving force of the wind resistance buffer sleeve 59, and further the wind resistance influence is reduced.

Further, when the yarn passes out of the outer end of the yarn guide tube 56, a friction force exists between the yarn and the end of the yarn guide tube 56, and the occurrence of the friction force increases the risk of yarn breakage, so the yarn guide device is better in the invention that the outer end of the yarn guide tube 56 is also provided with the rotating tube 61, the rotating tube 61 and the yarn guide tube 56 form rotating fit, friction force is converted into rotating force of the rotating tube 61 through the rotating tube 61, further the friction force is released, the yarn is prevented from being damaged, and the rotating tube 61 can be made of ceramic in order to improve the wear resistance of the rotating tube 61. On this basis, the border of the overhanging end of the rotating pipe 61 can also be provided with a circle of contact ring 62 with a circular cross section, and the smooth transition of the contact ring 62 enables the yarn to be conveyed more smoothly and the tension to be more stable, thereby further reducing the risk of yarn breakage.

Claims

1. A two-for-one twister with a broken wire detection function comprises a winding device (2), a broken wire detection device (3), a silk collector (4) and a twisting device (5) which are sequentially arranged on a rack (1) from top to bottom; the yarn sequentially passes through the twisting device (5), the silk collector (4) and the broken line detection device (3) and then is wound on the winding device (2);

the method is characterized in that: the broken line detection device (3) comprises two T-shaped fixed battens (6) which are parallel to each other and horizontally arranged, a first yarn guide wheel (7) and a second yarn guide wheel (8) are arranged between T-shaped heads of the two fixed battens (6), the first yarn guide wheel (7) is positioned and installed between the lower ends of the T-shaped heads of the fixed battens (6), vertical strip-shaped holes (9) are formed in the T-shaped heads of the fixed battens (6), shaft levers at two ends of the second yarn guide wheel (8) are matched with the strip-shaped holes (9), and a shaft lever of the second yarn guide wheel (8) is installed in the strip-shaped holes (9) and can freely slide in the strip-shaped holes (9); a third godet wheel (10) is arranged between the overhanging ends of the T-shaped rod parts of the fixed strip plates (6); the broken wire detection device (3) further comprises a detection assembly for detecting the position of the second godet wheel (8) in the strip-shaped hole (9); the yarn orderly rounds a first godet wheel (7), a second godet wheel (8) and a third godet wheel (10) in a zigzag shape.

2. The two-for-one twister with broken string detection function according to claim 1, wherein: the T-shaped rod part of the fixed batten (6) consists of a fixed section (11) and a sliding section (12), a sliding groove (13) matched with the sliding section (12) is formed in the inner surface of the fixed section (11), and the sliding section (12) is located in the sliding groove (13) and is locked with the sliding groove (13) through a locking assembly; the third godet wheel (10) is mounted between the ends of the sliding section (12).

3. The two-for-one twister with broken string detection function according to claim 2, wherein: the locking assembly comprises a sliding hole (14) which is arranged on the fixed section (11) and extends along the length direction of the fixed section (11), and a threaded column (15) which is fixedly arranged on the outer surface of one end, far away from the third godet wheel (10), of the sliding section (12), wherein the end part of the threaded column (15) is matched with a locking nut (16); the threaded column (15) of the sliding section (12) penetrates through the sliding hole (14) and is locked with the fixed section (11) through a locking nut (16).

4. The two-for-one twister with broken string detection function of claim 3, characterized in that: the detection assembly comprises an L-shaped crank arm (17) fixedly arranged at the end part of a shaft of the second godet wheel (8) and a supporting plate (18) arranged at the lower end of the T-shaped head part of the fixed slat (6) close to the lower end; be provided with first electrode (19) and second electrode (20) on crank arm (17) and layer board (18) respectively, first electrode (19) and second electrode (20) position are relative, and pass through wire and alarm (21) electric connection respectively, power (22) have concatenated on the wire between alarm (21) and second electrode (20).

5. The two-for-one twister with broken string detection function of claim 3, characterized in that: the detection assembly comprises a proximity sensor and a proximity body, the proximity sensor is arranged at the lower end of a T-shaped head of the fixed strip plate (6), the proximity body is arranged at the end of a shaft rod of the second godet wheel (8), and the position of the proximity body is opposite to that of the proximity sensor.

6. The two-for-one twister with broken string detection function according to claim 4, wherein: a reinforcing connecting rod (23) is also arranged between the two fixed laths (6).

7. The two-for-one twister with broken string detection function according to claim 6, wherein: the twisting device (5) comprises a twisting mechanism and a driving mechanism for driving the twisting mechanism to act; the driving mechanism is in transmission connection with a first transmission rod (24) on the twisting mechanism;

the driving mechanism comprises a second transmission rod (25) positioned on one side of the first transmission rod (24), and the second transmission rod (25) is installed on the rack (1) through a second bearing; the first transmission rod (24) and the second transmission rod (25) are respectively provided with a first gear (26) and a second gear (27), and the first gear (26) and the second gear (27) are meshed with each other;

the lower end of the second transmission rod (25) is in transmission connection with a rotating shaft (29) of a twisting motor (28) through a magnetic clutch transmission component; the magnetic clutch transmission assembly comprises a first connector (30) and a second connector (31) which are respectively fixed on a second transmission rod (25) and a rotating shaft (29) of the twisting motor (28), the first connector (30) and the second connector (31) are mutually matched, the first connector (30) and the second connector (31) are respectively cylindrical and cylindrical, and the first connector (30) is sleeved outside the second connector (31); a first bar magnet (32) is embedded in the inner side wall of the first connector (30), a second bar magnet (33) is embedded in the outer side wall of the second connector (31), the first bar magnet (32) and the second bar magnet (33) correspond to each other one by one, and connecting lines of two poles are located on the same straight line; the included angle a between the connecting line of the two poles of the first bar magnet (32) and the second bar magnet (33) and the radial line of the first connector (30) is between 40 and 80 degrees; the two opposite poles of the first bar magnet (32) and the second bar magnet (33) have the same magnetism; the second connector (31) on the rotating shaft (29) of the twisting motor (28) can be driven by the lifting assembly to withdraw or extend into the first connector (30).

8. The two-for-one twister with broken string detection function according to claim 7, wherein: a circle of annular shoulder (34) is further arranged on the circumferential surface of the bottom of the first connecting head (30), a cylindrical connecting sleeve (35) is arranged on the upper surface of the outer edge of the shoulder (34), and the connecting sleeve (35) is sleeved outside the first connecting head (30); a plurality of third bar magnets (36) are embedded on the inner side wall of the connecting sleeve (35), the third bar magnets (36) correspond to the first bar magnets (32) one by one, and two-stage connecting lines are positioned on the same straight line; the third bar magnet (36) has opposite poles to the first bar magnet (32).

9. The two-for-one twister with broken string detection function according to claim 8, wherein: a central hole which vertically penetrates through the second gear (27), the second transmission rod (25) and the first connecting head (30) is formed in the center of the second gear (27); a matched pull rod (43) penetrates through the central hole, the lower end of the pull rod (43) is fixedly connected with the second connector (31), and the upper end of the pull rod (43) is connected with a brake block (44) through a rotary joint; still be provided with pole setting (45) on frame (1) of second gear (27) one side, pole setting (45) are provided with vertical guide slot (46) towards a side of second gear (27), one side of brake block (44) is provided with and guide slot (46) matched with slider (47), slider (47) are installed in guide slot (46).

10. The two-for-one twister with broken string detection function of claim 9, wherein: the top surface of the second gear (27) is provided with a circular truncated cone-shaped contact part (48), and the lower surface of the brake block (44) is provided with a groove matched with the contact part (48).