CN106917169B - A kind of avoiding-type spinning end breaking detection device and the ring throstle using the device - Google Patents

Abstract

The invention relates to a spun yarn breakage detection device and its application technology, in particular to an avoidance-type spun yarn breakage detection device and a ring spinning machine using the device. The avoidance-type spun-end break detection device is installed on the ring spinning frame and moves along the length direction of its guide rail to detect the spun-end breakage occurring in the spinning process during the moving process. When the spinning frame is doffing, the avoidance-type spun yarn The broken end detection device automatically avoids to prevent the spun yarn broken end detection device from affecting the collective doffing or the work of the doffing trolley; Spinning breakage in the spinning process, and automatically send the information of the spindle position where the spinning breakage occurs to the upper computer.

Description

An avoidance type spinning end detection device and a ring spinning frame using the device

technical field

The invention relates to a spun yarn breakage detection device and its application technology, in particular to an avoidance-type spun yarn breakage detection device and a ring spinning frame using the device. The avoidance-type spun yarn breakage detection device is installed on the ring spinning frame and moves along the length direction of its guide rail. During the movement, it detects the spun yarn breakage that occurs during the spinning process, and uses wireless communication for the specific spindle position information where the breakage occurs. sent out, when the spinning frame is doffing, the avoidance-type spun-end breakage detection device will automatically avoid to prevent the spun-end breakage detection device from affecting the collective doffing or the work of the doffing trolley; the ring spinning frame using the device is installed The avoidance-type spun-end breakage detecting device can automatically detect the spun-end breakage in the spinning process, and automatically send the spindle location information where the spun-end breakage occurs to the upper computer.

Background technique

Among the various spinning processes, the spinning process consumes the most labor. The main responsibility of the spinning machine operator is to check and deal with broken ends, and among them, it takes up a lot of working time to find broken ends on tour. In order to reduce the labor intensity of the spun yarn operator and reduce the amount of labor, it is necessary to automatically detect the broken end of the spun yarn and notify the operator of the detection result for processing.

The utility model patent "yarn breakage detection device" (application number 02265359.7) detects whether the breakage occurs by installing a thermal sensor on each spindle to detect the friction between the yarn and the yarn guide hook and the frictional heat generation between the ring and the traveler. Larger investment. The utility model patent "yarn break detection device" (application number 200520080973.7) installs photoelectric sensors at both ends of the roller seat. The impact of flying flowers in the environment, and it is impossible to judge the spindle position of the broken end. The utility model patent "spinning yarn guide with yarn break detection device" (application number 200520045862.2) uses a special yarn guide hook to detect yarn breakage. This method needs to install a detection element for each spindle position, and the cost is relatively high. The utility model patent "A device for automatic detection of yarn breakage and automatic jointing" (application number 201220009611.9) adds a guide rail and a moving trolley beside the steel ring plate. The moving trolley reciprocates on the guide rail, and uses an inductance probe to detect the steel wire during the reciprocating movement. To measure the broken end of the spun yarn, the requirements for the installation position of the sensor are relatively high, which increases the uncertainty of the detection. Invention patent "Detection method for yarn twisting end breakage on spinning frame" (application number 201210009964.3) installs a photoelectric sensor or pressure sensor at each spindle position on the ring plate to detect the signal generated by the movement of the traveler to detect end breakage, and the cost is relatively high . Invention patent application "A method for detecting broken end" (application number 200910221019.8) installs a friction body on the surface of the pickup, and detects the presence or absence of the friction sound generated by the cotton sliver through the pickup, which is not only costly, but also difficult to imagine. The invention can be used for end-break detection of ring spinning frame. The utility model patent "Yarn Breakage Detection Mechanism for Counter-injection Pneumatic Spinning Frame" (Application No. 201220014294.X) and the utility model patent "Yarn Breakage Detection Mechanism for Reflective Pneumatic Spinning Frame" (Application No. 201220014311.X) are in each An air pipe nozzle and a pressure sensor are installed near each steel ring to detect yarn breakage. The utility model patent "Yarn Breakage Detection Mechanism for Photoelectric Reflective Spinning Frame" (application number 201220014375.X) and the utility model patent "Yarn Breakage Detection Mechanism for Optoelectronic Spinning Frame" (application number 201220014683.2) are in each steel A pair of light sources and photoelectric sensors are installed near the collar to detect yarn breakage. They are also costly. Invention patent application "A spun yarn breakage detection method and a spun yarn breakage detection device using the method" (application number 201210451800.6) uses sound detection and analysis to detect spun yarn breakage, which is also easily affected by workshop noise and yarn breakage The effect of head rotation. Invention patent application "A device for detecting and processing broken ends of spinning yarn and ring spinning frame using the device (application number 201410160157.0)" uses a mobile monitoring car to detect and process broken ends, but its guide rail and overall structure design are not conducive to stability It is not economical or even possible to adjust the position of the yarn detection rod accurately, and the first (second) swing arm motor needs a large torque, which is uneconomical or even impossible. If the reducer is used, the gap between the forward and reverse rotation of the reducer is not easy to control, resulting in the yarn detection rod The position is not easy to determine. Due to the influence of the primary swing arm on the secondary swing arm, the position of the secondary swing arm is more difficult to control. At the same time, this solution cannot make full use of the guide rails on the existing ring spinning frame, and the installation cost is high. It is not easy to determine the structural size of the primary swing arm and yarn probe assembly design of the spinning frame.

Contents of the invention

For the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of avoidance type spun yarn breakage detection device and the ring spinning frame using the device. The avoidance type spun yarn break detection device has the advantages of simple structure, low cost, reliable operation, convenient maintenance, and low requirements on the accuracy of sensor installation position; the ring spinning machine using this device can automatically detect spun yarn breakage in the spinning process and Spindle position information of spun yarn breakage is sent to the host computer by wireless communication.

The solution of the present invention to solve the technical problem of the avoidance-type spun-end breakage detection device is to design an avoidance-type spun-end-breakage detection device, which is characterized in that it mainly includes a moving trolley, a spindle sensor assembly, and a spun yarn probe assembly , Inclination adjustment device, power supply device and control device;

The mobile trolley includes a vertical pole, a spun yarn probe assembly mounting plate, a spindle sensor assembly mounting plate, a battery bearing plate, a supporting wheel, a driving wheel, a driving device and a righting wheel; the vertical pole is two The slender part; the spun yarn probe assembly mounting plate is a vertical flat plate installed on the upper part of the vertical pole and connected to the two vertical poles; the ingot sensor assembly mounting plate is installed in the middle of the vertical pole and connected to the two vertical The vertical direction flat plate of the rod; the battery bearing plate is vertical to the vertical rod, installed on the lower part of the vertical rod and connected to the two vertical rods; the supporting wheel and the driving wheel are installed on the vertical rod through bearings, bearing seats and mounting plates In the middle part, the driving wheel and the supporting wheel are located on the same side of the plane formed by the vertical rod along the moving direction of the mobile trolley, and the lower part of the outer circle of the driving wheel and the supporting wheel is at the same height from the lower end of the vertical rod. The driving device is installed on the driving device mounting plate and passed through The shaft coupling is connected with the shaft end of the driving wheel, and the centering wheel is a roller mounted on the vertical pole, the shaft center is parallel to the vertical pole, and the supporting wheel is located on the same side of the vertical pole.

The ingot sensor assembly includes an ingot sensor, an ingot sensor mounting plate and an ingot sensor swing mechanism;

The ingot sensor mounting plate is installed on the ingot sensor assembly mounting plate through the ingot sensor swing mechanism; The spindle core swings between two positions, and the spindle core sensor mounting plate is in the shape of a bent slat. The bending size and swing position should ensure that the avoidance type spun yarn breakage detection device does not interfere with Spinning frame interference;

The oscillating mechanism of the ingot sensor includes the rotating shaft of the ingot sensor installation plate, the sensor swing push rod and the sensor oscillating bearing seat. The ingot sensor installation plate rotating shaft is installed on the ingot sensor assembly mounting plate through the sensor oscillating bearing seat, The gall sensor mounting plate is installed on the rotating shaft of the ingot sensor mounting plate, and the sensor swing push rod is installed on the rotating shaft of the ingot sensor mounting plate.

The spun yarn detection rod assembly is composed of a yarn detection rod mounting plate rotating shaft, a yarn detection rod bearing seat, a yarn detection rod swing plate, a yarn detection rod installation plate, a yarn detection rod swing push rod, a yarn detection rod seat, a yarn detection rod, a blocking Rod, movable block and block electromagnet; the yarn detecting rod bearing seat is installed on the installation plate of the spinning detection rod assembly, and the rotating shaft of the yarn detecting rod mounting plate is installed on the spinning detection rod assembly through the yarn detecting rod bearing seat. On the board, the yarn detecting rod swinging plate is a long strip with one end cantilevered on the rotating shaft of the yarn detecting rod mounting plate, and the other end of the yarn detecting rod swinging plate is installed with a yarn detecting rod mounting plate. In the vertical plane perpendicular to the plane where the root pole is located, the yarn detecting rod swing push rod is a rod installed on the rotating shaft of the yarn detecting rod mounting plate, and the yarn detecting rod seat is an eccentric block, which is vertically installed on the yarn detecting rod through bolts and bearings. The mounting plate can rotate around its axis. The inner ring of the bearing is connected to the yarn detecting rod base through bolts and nuts. The outer ring of the bearing meshes with the inner side of the hole on the yarn detecting rod mounting plate. The yarn detecting rod is a thin rod-shaped component. The yarn detection rod is installed on the heavier end of the yarn detection rod seat, and the yarn detection rod is located in the plane determined by the center of gravity of the yarn detection rod seat and the axis of rotation, and has the ability to rotate in a plane parallel to the yarn detection rod mounting plate. degree of freedom, the blocking rod is a slender rod coaxially installed on the other side of the yarn detecting rod base, and located between the rotation axis of the yarn detecting rod base and the yarn detecting rod swing plate on the yarn detecting rod mounting plate There is a hole in the hole, and the movable block perpendicular to the yarn detecting rod mounting plate passes through the hole. One end of the movable blocking plate is connected with the movable rod of the blocking plate electromagnet at the lower part of the yarn detecting rod mounting plate, and the other end extends upwards to detect Yarn rod installation plate; by the structure, the yarn detection rod swings with the swing of the yarn detection rod swing plate, so that the yarn detection rod installation plate can be in two positions (the working position close to the spinning frame and the withdrawal position away from the spinning frame ) swing between.

The inclination adjustment device comprises a connecting rod, an inclination power device, a transmission device and a limit device; the connecting rod is a connecting rod connecting the swing push rod of the yarn detection rod and the swing push rod of the sensor, so that they (the swing push rod of the yarn detection rod) , sensor swing push rod, connecting rod and trolley) constitute a four-bar linkage mechanism; the rotation of the inclination power device is transmitted to the fixed shaft of the four-bar linkage mechanism through the transmission device (rotating shaft of the spindle sensor mounting plate or the rotating shaft of the yarn detecting rod mounting plate fixed end), the rotation of the power device controls the position of the four-bar linkage mechanism, thereby changing the rotation position of the spindle sensor mounting plate and the yarn detection rod mounting plate, the input side and the output measuring position of the transmission device are not in one-to-one correspondence, they A certain amount of activity is reserved between them, that is, when the rotating shaft of the inclination power device is not rotating, the rotating shaft of the spindle sensor mounting plate or the yarn detecting rod mounting plate can rotate at a certain angle, and the limit device is installed on the spindle sensor assembly mounting plate And the bolt on the mounting plate of the spun yarn probe rod assembly, the spindle sensor mounting plate or the yarn detecting rod swing plate contacts the limit device during the swing process of the spindle sensor to limit the limit position of the spindle sensor and the yarn detecting rod swing. When the spindle sensor and the yarn detection rod are at their two limit positions, the center of gravity of all components that swing together with the spindle sensor and the yarn detection rod is the same as the rotation axis of the spindle sensor installation plate and the rotation axis of the yarn detection rod installation plate. The positional relationship between the rotary axes can ensure that the yarn detecting rod and the spindle sensor stay at their two limit positions, that is, when the spindle sensor is located close to the limit position of the spinning frame, it will swing together with the spindle sensor and the spindle sensor. The center of gravity of all components is located closer to the spinning frame than the center of rotation of the shaft of the spindle sensor mounting plate. The center of gravity is located farther from the spinning machine than the center of rotation of the shaft of the spindle sensor mounting plate.

Described power supply device is the battery that is placed on the battery carrying plate and the current collector that links to each other with battery terminal.

The control device includes a control cabinet, a controller circuit board, a sensor, a man-machine interface, an output drive circuit and a wireless communication module. It is a circuit board developed by an MCU such as a single-chip microcomputer or an embedded controller, and is installed in a control cabinet to control the avoidance type spinning end detection device. The sensor mainly includes an end detection sensor, a core sensor, and a core sensor. The plate swing position sensor, the shutter electromagnet state sensor and the yarn detection rod swing position sensor, the sensor is a photoelectric switch or a proximity switch, and the end detection sensor is installed on the vertical pole of the mobile trolley to face the guide rail with a perforated plate. At the position of the front mark and the rear mark at the end of the stroke of the marking trolley, the ingot sensor is a proximity switch installed on the ingot sensor mounting plate, and the swing position sensor of the ingot sensor mounting plate is perpendicular to the swing surface of the ingot sensor mounting plate Proximity switch installed facing the middle of the swing angle of the spindle sensor mounting plate, the yarn detecting rod swing position sensor is installed on the yarn detecting rod mounting plate adjacent to the movable block and on both sides where the blocking rod rotates. position, the state sensor of the shutter electromagnet is a proximity switch whose sensitive area is facing the moving rod of the shutter electromagnet, and the output of the sensor is connected to the controller circuit board, and the man-machine interface is a dial installed on the controller circuit board Code switch, keyboard and display screen, the output drive circuit is a stepper motor, electromagnet, clutch drive control circuit installed in the control cabinet, the wireless communication module is a ZigBee module installed on the controller circuit board, but It does not exclude the use of other Wi-Fi networking technologies, and the antenna of the wireless communication module is installed outside the control cabinet. The human-machine interface includes a dial switch for inputting the information of the spinning machine platform used by the avoidance-type spinning broken end detection device and the information on which side of the spinning frame it is installed on, but it does not exclude the use of keyboards and screens to input relevant information. The output circuit includes control circuits for moving parts such as an electromagnet drive circuit and a motor drive circuit, and the wireless communication module is a ZigBee wireless communication module, but it does not exclude the use of other Wi-Fi networking technologies for sending the detection results of spun yarn breakage go out.

The technical scheme of the present invention to solve the above-mentioned ring spinning frame using the avoidance type spinning end detection device is to design a ring spinning frame, which is characterized in that guide rails are installed on both sides of the ring spinning frame, and the guide rails include upper guide rails And the lower guide rail, the length of one side guide rail reaches the end of the front of the car, and the length of the other side guide rail reaches the end of the rear of the car. Conductive sliding contact wires are installed on the guide rail, and at least one of the present invention is placed on each side guide rail. Avoidance-type yarn breakage detection device, the supporting wheel and driving wheel of the mobile trolley are placed on the upper guide rail, and the centering wheel leans against the outer side of the lower guide rail. The avoidance-type yarn breakage detection device can be driven by the driving device along the The length direction of the vehicle body moves, and the front and rear signs are installed on the guide rails. The front and rear signs are components installed on the upper guide rail (not excluded on the lower guide rail). The installation position of the front sign must be ensured. When the avoidance-type spun yarn breakage detection device moves from the rear of the vehicle to the front of the vehicle, the end detection sensor can detect the front of the vehicle after the yarn detecting rod leaves the last spindle, and the installation position of the rear of the vehicle should ensure that the When the avoidance-type spun yarn breakage detection device moves from the front to the rear, the end detection sensor can detect the tail mark after the yarn detection rod leaves the last spindle, and the installation height of the head mark and the tail mark corresponds to The height of the end detection sensor.

For the spinning frame equipped with collective doffing device, the upper guide rail is installed on the collective doffing device at the same height as the air frame of the collective doffing device and is horizontal to the program plate. The upper guide rail is installed on the rotating shaft of the air frame through a vertical bracket. On the reinforced connecting rod outside the center, the support bracket of the upper guide rail is parallel to the plane where the herringbone arm of the collective doffing device is located. On the outer side of the reinforced connecting rod.

The upper guide rail is insulated from the guide rail support bracket, and the joints of the adjacent independent upper guide rails are connected with wires. A single-phase conductive sliding contact line is installed on the independent lower guide rail, and the independent upper guide rail and single-phase conductive sliding contact wire are respectively connected to the charging circuit. The positive and negative electrodes of the output, the collector carbon brush installed on the moving trolley are in contact with the outside of the support wheel and the centering wheel.

When multiple avoidance-type yarn breakage detection devices are installed on each side of the spinning frame, the head mark and the tail mark are located at the end of the operating range of each avoidance-type yarn breakage detection device, and the head mark between adjacent ranges There is a slight difference in the installation height of the tail mark and the tail mark, and the installation height of the end detection sensor of the avoidance type spun yarn breakage detection device installed in the adjacent section is also slightly different correspondingly.

Compared with the prior art, the avoidance type spinning end detection device of the present invention has the characteristics of simple structure, reliable operation, easy maintenance, low cost and easy implementation; the ring spinning frame of the present invention is equipped with the avoidance type The spun yarn breakage detection device can not only automatically detect the spun yarn breakage that occurs during the spinning process of the spinning frame, and send the information of the broken spindle position to the upper computer through wireless communication, but also when doffing is required, the inclination power device makes the spindle Both the bile sensor and the yarn detecting rod leave the working position, so that the avoidance type spinning end detection device can move to the front or rear position along the guide rail on the spinning frame (for the spinning frame equipped with a collective doffing device, the avoidance type spinning The head detection device does not need to move to the front or rear of the car to wait, it only needs to make the spindle sensor and the yarn detection rod leave the working position), which can avoid the interference between the spindle sensor and the yarn detection rod and the spinning frame during the movement, And it does not affect the use of the doffing trolley during doffing, and it is not necessary to remove the avoidance-type spun end-break detection device from the guide rail of the spinning frame, which reduces the labor load. Compared with the ring spinning frame of this device (application number 201410160157.0), the avoidance type spun yarn breakage detection device has a simple structure, low manufacturing cost, does not interfere with spinning frame components (including blowing and suction devices), and is convenient for spinning On-board installation and commissioning reduce installation costs.

Description of drawings

Fig. 1 is a schematic front view of the structure and installation of the avoidance-type spun-end break detection device of the present invention.

Fig. 2 is a schematic side view of the structure and installation of the avoidance-type spun end break detection device of the present invention.

Fig. 3 is another structural schematic diagram of the avoidance-type spun broken end detection device of the present invention.

Fig. 4 is a schematic diagram of the breakage detection principle of the avoidance-type spun end breakage detection device of the present invention.

Figure 5 is a schematic diagram of the installation of the upper guide rail when the avoidance-type spinning broken end detection device of the present invention is installed on the spinning frame equipped with the collective doffing device.

In the figure: 1. Mobile trolley 11. Pole 12. Spinning probe rod assembly mounting plate 13. Spindle sensor assembly mounting plate 14. Battery bearing plate 15. Support wheel 16. Driving wheel 17. Driving device 171. Driving device Mounting plate 172. Coupling 18. Righting wheel 2. Ingot sensor assembly 21. Ingot sensor 22. Ingot sensor installation plate 23. Ingot sensor swing mechanism 231. Ingot sensor installation plate shaft 232. Sensor swing push Rod 233. Sensor swing bearing seat 3. Spinning probe rod assembly 31. Yarn detection rod mounting plate rotating shaft 32. Yarn detection rod bearing seat 33. Yarn detection rod swing plate 34. Yarn detection rod installation plate 35. Yarn detection rod swing push Rod 36. Yarn detection rod seat 37. Yarn detection rod 38. Blocking rod 39. Movable block 391. Magnetic steel 30. Block electromagnet 4. Inclination adjustment device 41. Connecting rod 42. Inclination power device 43. Transmission device 44 .Limiting device 5. Power supply device 51. Carbon brush 52. Carbon brush holder 6. Control device 61. Control cabinet 62. Sensor 621. End detection sensor 623. Ingot sensor mounting plate swing position sensor 624. Block electromagnet status Sensor 625. Yarn detection rod swing position sensor 7. Track 71. Upper guide rail 711. Upper guide rail support 712. Independent upper guide rail 72. Lower guide rail 73. Spinning frame channel steel 8. Collective doffing device 81. Collective doffing device air frame 9. Angle steel 91. Independent upper guide rail support bracket 92. Air frame rotation axis 93. Reinforced connecting rod 94. Herringbone arm of collective doffing device 95. Yarn guide hook 96. Front roller 99. Spinning yarn

Detailed ways

Further describe the present invention below in conjunction with embodiment and accompanying drawing thereof, the specific embodiment of the avoidance type spun broken end detecting device of the present invention that provides below is only illustration to the present invention, does not constitute the restriction to the claims of the present invention, the present invention What is not mentioned is applicable to the prior art.

Embodiment 1 of the avoidance-type spun yarn breakage detection device of the present invention (see Figures 1-2):

The avoidance type spinning end detection device mainly includes a mobile trolley 1, a spindle sensor assembly 2, a spinning probe rod assembly 3, an inclination adjustment device 4, a power supply device 5 and a control device 6.

The mobile trolley 1 includes a vertical pole 11, a spinning probe rod assembly mounting plate 12, a spindle sensor assembly mounting plate 13, a battery bearing plate 14, a supporting wheel 15, a driving wheel 16, a driving device 17 and a centering wheel 18; The vertical rod 11 is two flat tubes in the vertical direction (the use of square tubes, profiles and round pipes, etc. is not excluded); the spun yarn probe rod assembly mounting plate 12 is installed on the top of the vertical rod 11 and connected to the Vertical flat plate; the ingot sensor assembly mounting plate 13 is a vertical flat plate installed in the middle of the vertical pole 11 and connected to two vertical poles; the battery carrying plate 14 is installed on the bottom of the vertical pole and connected to the two vertical poles The "L" type plate (not excluding the use of flat and frame structures); the supporting wheel 15 and the driving wheel 16 are installed in the middle of the vertical pole through the bearing, the bearing seat and the mounting plate, and the driving wheel 16 and the supporting wheel 15 are located on the two vertical poles On the same side of the plane, and the driving wheel 16 is the same height as the lower part of the support wheel 15 outer circle from the lower end of the pole, the driving device 17 is a stepper motor or a DC geared motor, and the driving device 17 is installed on the driving device mounting plate 171 And be connected with the drive wheel axle end by shaft coupling 172, drive device mounting plate 171 is installed on the mounting plate of installing drive wheel 16, and described righting wheel 18 is that two are installed on the vertical pole, and axis center is parallel with vertical pole, Two rollers or roller bearings on the same side of the plane where the two vertical bars are located with the support wheel 15.

Described ingot sensor assembly 2 comprises ingot sensor 21, ingot sensor mounting plate 22 and ingot sensor swing mechanism 23;

The ingot sensor mounting plate 22 is installed on the ingot sensor assembly mounting plate 13 through the ingot sensor swing mechanism 23; the ingot sensor 21 is installed on the ingot sensor mounting plate 22, so that the ingot sensor 21 together with the ingot sensor mounting plate 22 swings between two positions close to the spindle and away from the spindle. The spindle sensor mounting plate 22 is in the shape of a bent slat. It does not interfere with the spinning frame when moving along the guide rail, and the length direction of the spindle sensor mounting plate 22 is located in the vertical plane perpendicular to the moving direction of the moving trolley;

The ingot sensor swinging mechanism 23 includes an ingot sensor mounting plate rotating shaft 231, a sensor swinging push rod 232 and a sensor swinging bearing seat 233. The ingot sensor mounting plate rotating shaft 231 is a cross-section whose outer peripheral surface is milled flat by one side. It is a "D" shaped shaft, the ingot sensor mounting plate rotating shaft 231 is installed on the ingot sensor assembly mounting plate 13 through the bearing and the sensor swing bearing seat 233, and the ingot sensor mounting plate 22 is installed on the ingot sensor mounting plate rotating shaft 231 On the flat milling plane above, the sensor swing push rod 232 is installed on the shaft 231 of the ingot sensor mounting plate, a rod-shaped part or a fish-eye bearing perpendicular to the ingot sensor mounting plate 22, and the ingot sensor mounting plate 22 The length direction is located in a plane perpendicular to the moving direction of the mobile trolley, and has the degree of freedom to rotate in the plane.

The spun yarn probe assembly 3 is composed of a yarn probe mounting plate rotating shaft 31, a yarn probe bearing seat 32, a yarn probe swing plate 33, a yarn probe mounting plate 34, a yarn probe swing push rod 35, a yarn probe seat 36. It consists of a yarn detecting rod 37, a blocking rod 38, a movable stopper 39 and a stopper electromagnet 30; the rotating shaft 31 of the yarn detecting rod mounting plate is flattened by one side of the outer peripheral surface and has a “D” shape in section Shaft, the yarn detecting rod mounting plate rotating shaft 31 is supported and installed on the spun yarn detecting rod assembly mounting plate 12 through the bearing and the yarn detecting rod bearing seat 32, and the yarn detecting rod swinging plate 33 is installed on the yarn detecting rod mounting plate rotating shaft 31 as a cantilever at one end. The long strip plate on the flat surface, the other end of the yarn detection rod swing plate 33 is vertically installed with the yarn detection rod installation plate 34, and the length direction of the yarn detection rod swing plate 33 and the yarn detection rod installation plate 34 is located on the spindle sensor installation plate 22 In the vertical plane where it is located and has the degree of freedom to rotate in this plane, the yarn detecting rod swing push rod 35 is a rod-shaped part perpendicular to the yarn detecting rod swing plate 33 and installed on the rotating shaft 31 of the yarn detecting rod mounting plate. Said yarn detecting rod base 36 is an eccentric block, which is vertically installed in the hole on the yarn detecting rod mounting plate 34 through a shaft and a bearing and can rotate around its axis, and the yarn detecting rod base 36 is installed on the top of the yarn detecting rod mounting plate 34 , the yarn detection rod 37 is a thin rod-shaped part, and the yarn detection rod 37 is installed on the heavier end of the yarn detection rod seat 36, and the yarn detection rod is located in the plane determined by the center of gravity line of the yarn detection rod seat and its rotational axis, and There is a degree of freedom to rotate in a plane parallel to the yarn detection rod mounting plate 34, and the blocking rod 38 is a slender rod coaxially installed on the other side of the yarn detection rod seat 36 with the yarn detection rod. Have a rectangular hole 341 between the axis of rotation of the yarn detection rod seat 36 and the yarn detection rod swinging plate 33 on the plate 34, and pass through the movable block 39 perpendicular to the yarn detection rod mounting plate 34 in the hole (do not exclude the following: Round hole replaces rectangular hole 341, replaces movable catch 39) with round bar, movable catch 39 one end is connected with the movable bar of catch electromagnet 30 at the bottom of yarn detecting rod mounting plate 34, and the other end stretches out yarn detecting rod upwards Mounting plate 34, the stopper electromagnet is installed on the bottom of the yarn detection rod installation plate 34, and the moving direction of its movable rod is perpendicular to the yarn detection rod installation plate 34, and the movable stopper 39 is downward when the stopper electromagnet 30 is energized and attracted Move to a height lower than the rotation plane of the blocking rod 38. When the electromagnet is powered off, the electromagnet is reset by the spring action of the electromagnet so that the movable catch 39 moves upward to a height higher than the rotation plane of the blocking rod 38, which can prevent the blocking rod from rotating. Through the position where the movable block is located, the block electromagnet is installed on the bottom of the yarn detecting rod mounting plate 34, the yarn detecting rod is installed on the top of the yarn detecting rod mounting plate 34 and the blocking plate electromagnet is installed on the yarn detecting rod mounting plate 34 Compared with the upper part of the yarn detection rod installed on the bottom of the yarn detection rod mounting plate 34, the avoidance type spinning end detection device has no other parts on the upper part of the yarn detection rod, so that the yarn detection rod can be closer to the front roller 96 of the spinning machine, and more It is beneficial to adjust the position of the avoidance-type spinning end detection device when it is installed, because the closer the yarn detection rod is to the front roller in the vertical direction, the The shorter the distance of the yarn contacted by the yarn detection rod caused by the up and down movement of the yarn guide hook 95 swings along the length direction of the yarn detection rod, the easier it is to adjust the installation position of the avoidance-type spinning broken end detection device, especially for compact spinning frames. , can effectively prevent the blocker electromagnet from interfering with the spinning frame components, and at the same time, it is not excluded to install the blocker electromagnet on the opposite side of the yarn detection rod swing plate 33 and the yarn detection rod installation plate 34, so that the movable rod The direction of motion is the same as the length direction of the yarn detection rod mounting plate; by the structure, the yarn detection rod 37 swings with the swing of the yarn detection rod swing plate 33, so that the yarn detection rod 37 can be in two positions (close to the working position of the spinning frame) position and the withdrawal position away from the spinning frame), when the swing plate of the yarn detection rod is deflected from the retracted position to the working position, the yarn detection rod located on the side of the center of gravity of the yarn detection rod seat points to the direction of the spinning machine due to gravity (at this time balance position), the installation position of the yarn detection rod should ensure that the yarn detection rod is located between the yarn guide hook and the front roller when the yarn detection rod swing plate swings to the spinning frame, and when the moving trolley moves along the guide rail, the end of the yarn detection rod It is in approximately vertical contact with the spun yarn 99 located between the yarn guide hook and the front roller, and is swung by the spun yarn. After the moving trolley moves to a distance less than the spindle gauge, the end of the yarn detection rod leaves the spun yarn and swings back to the initial balance position by gravity.

The inclination adjustment device 4 comprises a connecting rod 41, an inclination power device 42, a transmission device 43 and a limit device 44; , make them constitute the four-bar linkage (the swinging push rod 35 of the yarn detection rod, the sensor swing push rod 232 are the connecting rods of the four-bar linkage, the connecting rod 41 is the connecting rod of the four-bar linkage, and the mobile dolly is a four-bar linkage frame of the mechanism); transmission device 43 is to remove the quincunx coupling of buffer block, and inclination power device 42 is a stepper motor or DC geared motor, and the rotation of inclination power device 42 is transmitted to the four-bar linkage by transmission device 43 At the fixed shaft (in this embodiment, the inclination power device 42 is installed on the spindle sensor assembly mounting plate, and its power is transmitted to the fixed end of the spindle sensor mounting plate rotating shaft 231, but it does not exclude transmission to the yarn feeler rod mounting plate rotating shaft 31 fixed end), the forward and reverse rotation of the inclination power device 42 controls the position of the four-bar linkage mechanism, thereby changing the positions of the spindle sensor 21 and the yarn detection rod 37, and the limit device 44 is installed on the spindle sensor assembly. 2 bolts on the plate 13, the spindle sensor 21 in the swing process, the spindle sensor mounting plate 22 contacts the screw end of the limit device, and limits the limit position of the spindle sensor 21 and the yarn detection rod 37 swing (also can simultaneously The limiting device is installed on the spinning probe rod assembly mounting plate 12, so that it limits the swing range of the yarn probe rod swing plate 33). When the spindle sensor and the yarn detection rod are in their two limit positions, the center of gravity of all parts that swing together with the spindle sensor and the yarn detection rod is the same as the rotation axis of the spindle sensor installation plate rotating shaft 231 and the yarn detection rod installation plate rotation axis The positional relationship between the rotary axes of 31 can ensure that the yarn detection rod and the spindle sensor stay at their two limit positions. Driven by the device, in order to facilitate control, the positions of the input side and the output side of the transmission device 43 are not in one-to-one correspondence, and a certain (larger than the circumferential gap of the general coupling) rotation gap should be reserved between them, that is, the inclination power device When the rotating shaft of 42 is not rotating, the rotating shaft of the spindle sensor mounting plate or the rotating shaft of the yarn detecting rod mounting plate can rotate at a certain (for example, not less than 5°) angle. For this reason, the buffer block of the plum blossom coupling is removed as the transmission device 43 , but does not exclude the use of flexible shafts and elastic couplings as transmissions.

The power supply device 5 is a battery placed on the battery carrying plate 14 .

The control device 6 includes a control cabinet 61, a controller circuit board, a sensor 62, a man-machine interface, an output drive circuit and a wireless communication module. The controller circuit board is a circuit board developed by an MCU such as a single-chip microcomputer or an embedded controller, and is installed in the control cabinet for controlling the avoidance type spun yarn breakage detection device. The sensor mainly includes an end detection sensor 621, a spindle sensor 21 , the swing position sensor 623 of the spindle sensor mounting plate, the block plate electromagnet state sensor 624 and the swing position sensor 625 of the yarn detection rod, the sensor is a photoelectric switch or a proximity switch, and the end detection sensor is installed on a plate with a hole 621 The pole of the mobile trolley is facing the position of the head and tail marks on the guide rail to mark the end of the trolley stroke, and is used to detect whether the mobile trolley has moved to the end of the guide rail. The ingot sensor is installed on the ingot sensor mounting plate The proximity switch of the ingot sensor mounting plate swing position sensor is a proximity switch installed perpendicular to the swing surface of the ingot sensor mounting plate and facing the middle of the swing range (angle) of the ingot sensor mounting plate. When the ingot sensor mounting plate is in the When swinging between the two limit positions, first approach the swing position sensor of the ingot sensor mounting plate, and then move away from the swing position sensor of the ingot sensor mounting plate. By detecting the signal of the swing position sensor of the ingot sensor mounting plate, the ingot sensor mounting plate can be known. The swing position of the detection rod, the swing position sensor of the detection rod is installed on the installation plate of the detection rod, which is adjacent to the movable stopper and the two sides where the blocking rod rotates. The state sensor of the stopper electromagnet is the sensitive area facing the block The proximity switch on the moving rod of the electromagnet and the opposite end of the movable shutter is used to detect whether the electromagnet of the shutter is in the state of attraction or release. The output of the sensor is connected to the controller circuit board. The man-machine interface is installed The dial switch, keyboard and display screen on the controller circuit board, the output drive circuit is a stepper motor, electromagnet, clutch drive control circuit installed in the control cabinet, the wireless communication module is installed in the controller The ZigBee module on the circuit board does not exclude the use of other Wi-Fi networking technologies, and the antenna of the wireless communication module is installed outside the control cabinet. The human-machine interface includes a dial switch for inputting the information of the spinning machine platform used by the avoidance-type spinning broken end detection device and the information on which side of the spinning frame it is installed on, but it does not exclude the use of keyboards and screens to input relevant information. The output circuit includes control circuits for moving parts such as electromagnets and motor drive circuits.

The principle of the avoidance-type spun-end breakage detection device for detecting spun-end breakage is as follows (see FIG. 4 ): when the moving trolley moves to a spindle position, the yarn probe 37 contacts the spun yarn 99 and is swung. Before arriving at the next spindle position, it is detected that the blocking rod 38 is deflected by the yarn detecting rod swing position sensor 625, which means that the spun yarn at the current spindle position is not broken, otherwise the spun yarn at the current spindle position is broken.

Embodiment 2 of the avoidance-type spun yarn breakage detection device of the present invention (see Figures 1 to 4):

When the avoidance-type spinning broken end detection device is used in the spinning frame, it is placed on the track 7 of the spinning frame. The spinning frame track includes an upper guide rail 71 and a lower guide rail 72. Because the installation methods of the upper guide rail 71 of different types of spinning frames are different, as shown in Fig. 1 and Fig. 2, the bracket 711 of the upper guide rail 71 of the spinning frame is installed on the lower part of the channel steel 73 of the spinning frame. The upper part of 71 swings close to the spindle, but the support of the guide rail on the spinning frame of some models is installed on the top of the channel steel 73 of the spinning frame (as shown in Figure 3). In this case, in order to prevent the spindle sensor from interfering with the guide rail support, The ingot sensor can only swing close to the ingot at the bottom of the upper guide rail.

Since the ingot sensor mounting plate in this embodiment can not interfere with the mounting plate installing the driving device during the swing process, only one column of the mobile trolley can be used, and the supporting wheel 15, the driving wheel 16 and the driving device 17 can be Be installed on the ingot sensor assembly mounting plate 13, at this moment, the ingot sensor assembly mounting plate 13 is as the mounting plate of driving device and driving wheel, and in this case, only one is installed in the righting wheel.

In order to avoid the inconvenience caused by frequent charging, a current collector is installed on the pole of the moving trolley in this embodiment. The collector contacts the conductive trolley line installed on the spinning frame during the movement of the moving trolley to take power, and the lead wire of the current collector is connected to Terminals of the battery.

In order to quickly reset the yarn detection rod and replace the movable stopper to prevent the continuous swing of the blocking rod, a magnetic steel 391 facing the movable stopper and the blocking rod is installed on the yarn detection rod swing plate close to the yarn detection rod installation plate. The steel can attract the blocking rod, and the size of the magnetic steel and the distance between the magnetic steel and the end of the blocking rod can be adjusted to prevent the yarn detecting rod from swinging too much, and prevent the yarn detecting rod from interrupting the spun yarn.

Example 1 of the avoidance-type spinning end-breakage detection device of the present invention applied to a ring spinning frame (see Figures 1-4):

The technical scheme of the present invention to solve the above-mentioned ring spinning frame using an avoidance-type spinning broken end detection device is to design a ring spinning frame, which is characterized in that guide rails 7 are installed on both sides of the ring spinning frame, and the guide rails include the upper Guide rail 71 and lower guide rail 72, the length of one side guide rail reaches the end of the front of the car, and the length of the other side guide rail reaches the end of the rear of the car. Conductive sliding contact lines are installed on the guide rails, and at least one of the present invention is placed on each side guide rail. In the avoidance-type spun-end breakage detection device, the supporting wheels and driving wheels of the mobile trolley are placed on the upper guide rail 71, and the centering wheel leans against the lower guide rail 72, and the avoidance-type spun-end breakage detection device is driven by the driving device. The bottom can move along the body length direction of the spinning frame, and the front and rear signs are installed on the guide rail. The front and rear signs are bolts (not excluded on the guide rail) installed on the upper guide rail (not excluded) Install magnetic steel or metal plate, etc.), the installation position of the head mark should ensure that the avoidance type spinning end detection device moves from the rear to the front, when the yarn detection rod leaves the last spindle, the end detection sensor The head mark can be detected, and the installation position of the tail mark should ensure that the avoidance type spun yarn breakage detection device moves from the head to the tail, and the end detection sensor can be used when the yarn probe leaves the last spindle. When the tail mark is detected, the installation height of the head mark and the tail mark corresponds to the height of the end detection sensor 621 .

There are two standard guide rails on the spinning frame without collective doffing device. The guide rail with the same height as the spindle is the upper guide rail, and the round tube or flat tube guide rail closer to the ground is used as the lower guide rail. If the standard guide rail is The length is only the length of the car surface, and the guide rail on one side is extended to the end of the car head, and the other side guide rail is extended to the end of the car rear, so that the avoidance type spun yarn breakage detection device can be moved close to the end of the car front or car rear to prevent its Affect the use of doffing trolley for doffing, hang the support wheel 15 and driving wheel 16 of the avoidance type spun end breakage detection device on the upper guide rail, and put the centering wheel against the side of the lower guide rail to detect the avoidance type spun end breakage. The device is installed on the spinning frame.

The avoidance-type spun-end breakage detection device can move along the upper and lower guide rails, and by adjusting the positions of the support theory, the driving wheel, the centering wheel and the limit device 44, the components of the avoidance-type spun-end breakage detection device can move along the guide rails. Does not interfere with the various components of the spinning frame; when the spindle sensor of the avoidance-type spinning broken end detection device swings to the limit position close to the spinning frame, the distance between the sensitive part and the spindle is guaranteed to be less than its effective measurement range and not Interfering with the spindle, the avoidance-type spinning broken end detection device moves on the guide rail until its control device detects the spindle by the spindle sensor, and the spinning probe rod is in the direction of the length of the spinning frame corresponding to the guide of the spindle. Yarn hook position.

The avoidance-type spun yarn breakage detection device moves on the guide rail until its control device detects the head mark or the tail mark and reverses the movement. After the reverse movement, the stopper electromagnet is energized and pulls down the stopper to prevent the The moving yarn detection rod bends the movable block or breaks the spun yarn because the movable block hinders the rotation of the blocking rod. Combining the detection of the front and rear of the car with the detection of the spindle, the position number of the detected spindle position can also be judged, that is, the active The first spindle position detected after the trolley changes direction from the front is No. 1, and so on.

In order to facilitate the power supply of the avoidance-type yarn breakage detection device, a conductive sliding contact line is installed on the guide rail (upper guide rail or lower guide rail), and the end of the conductive sliding contact wire is connected to the output of the battery charger. Electric appliances, the output of the current collector are connected to the storage battery terminal of the avoidance-type spun yarn breakage detection device, and the current technology is applicable to the conductive trolley line, the charger and the current collector.

The working state of the avoidance type spinning end detection device refers to that the avoidance type spinning end detection device moves on the guide rail and detects the end break during the spinning process of the spinning frame. position, and when the moving trolley moves along the guide rail, the end of the yarn detecting rod can be in contact with the spun yarn located between the yarn guide hook and the front roller and is swung by the spun yarn, and the moving trolley continues from the position where the yarn detecting rod contacts the spun yarn After moving a distance smaller than the spindle gauge of the spinning frame, the end of the yarn detection rod leaves the spinning, and the yarn detection rod swings back to the position where the blocking rod is blocked by the movable block by gravity; the waiting state refers to the yarn detection rod and the spindle sensor moving away After the spinning frame swings to the limit position that does not affect the doffing, the moving trolley moves to the head (or tail) position of the spinning frame and waits for the restart to enter the working state.

Embodiment 2 of the avoidance-type spun broken end detection device of the present invention when used on a ring spinning frame (see Figure 5):

For spinning frames equipped with collective doffing devices, an angle steel 9 (or elongated rods such as steel pipes, profiles, etc.) that is equivalent in height to the air frame 81 of the collective doffing device and level with the program plate is installed on the collective doffing device 8 As the independent upper guide rail 712, the independent upper guide rail is only used for the avoidance-type spun yarn breakage detection device, not for the suspended doffing trolley. The independent upper guide rail is installed on the air frame rotating shaft through the independent upper guide rail support bracket 91 in the vertical direction. On the tubular (usually square tube or round tube) reinforced connecting rod 93 outside the center 92 that swings with the air frame during collective doffing, the plane where the independent upper rail support bracket 91 and the herringbone arm 94 of the collective doffing device are located Parallel, the installed independent upper guide rail 712 swings together with the air frame during collective doffing, and the supporting wheel 15 and driving wheel 16 of the avoidance-type spinning broken end detection device are suspended on the installed independent upper guide rail, and the righting The wheel leans against the outer surface of the reinforcing connecting rod (as an independent lower guide rail), and the avoidance type spinning end detection device can be installed on the spinning frame.

The independent upper guide rail and the independent upper guide rail support bracket are insulated with insulating pads and fixed with insulating bolts. The joints of adjacent independent upper guide rails are connected with wires. Single-phase conductive sliding contact lines are installed on the independent lower guide rail. The independent upper guide rail and The single-phase conductive trolley line is respectively connected to the positive and negative poles of the charging circuit output, and the carbon brush 51 and the carbon brush holder 52 above the supporting wheel and the centering wheel are installed on the mobile trolley as collectors, and the carbon brushes, the support wheel and the centering wheel are connected to each other. It is not ruled out to install the carbon brush at the position where it is in contact with the side of the supporting wheel (or driving wheel), and connect the output wire of the carbon brush to the terminal of the battery. The supporting wheel (or driving wheel), centering wheel, and carbon brush charge the battery, which can reduce installation costs, make full use of the guide rail, and will not damage the charging circuit due to the use of doffing trolleys, because spinning frames equipped with collective doffing devices Doffing trolleys are not used.

For the spinning frame long car, in order to shorten the reciprocating time of the avoidance-type yarn breakage detection device, install multiple avoidance-type yarn breakage detection devices on each side of the spinning frame, and each avoidance-type yarn breakage detection device The device only detects the broken end condition of a section of spinning frame. At this time, the head mark and the tail mark are located at the end of the operating range of the avoidance type spinning end detection device for each section, and the installation height of the head mark and the tail mark between adjacent sections There is a slight difference, and the installation heights of the end detection sensors of the avoidance-type spun-end detection devices installed in adjacent sections are also slightly different, so that each avoidance-type spun-end detection device can only detect the head mark corresponding to its running section and Rear sign.

For the sake of clarity, the bolts used to connect the various parts are not drawn in the accompanying drawings of the present invention.

The invention is not limited to the embodiments discussed above, but a person skilled in the art can deduce other variants based on the invention, which also belong to the subject of the invention.

Claims (10)

1. An avoidance-type spun yarn breakage detection device is characterized in that it mainly includes a mobile trolley, a spindle sensor assembly, a spun yarn probe assembly, an inclination adjustment device, a power supply device and a control device; The mobile trolley includes a vertical pole, a spun yarn probe assembly mounting plate, a spindle sensor assembly mounting plate, a battery bearing plate, a supporting wheel, a driving wheel, a driving device and a centering wheel. Long parts, the spun yarn probe assembly mounting plate is a vertical flat plate installed on the upper part of the vertical pole, the ingot sensor assembly mounting plate is a vertical flat plate installed in the middle of the vertical pole, and the battery carrying plate It is a plate perpendicular to the pole and installed on the lower part of the pole. The supporting wheel and driving wheel are installed in the middle of the pole through bearings, bearing seats and mounting plates. on the same side of the plane, and the driving wheel and the lower part of the outer circular surface of the supporting wheel are at the same height from the lower end of the vertical pole. The driving device is installed on the driving device mounting plate and connected with the driving wheel through a coupling. Upper, the roller whose axis is parallel to the pole and located on the same side of the pole as the supporting wheel; The ingot sensor assembly includes an ingot sensor, an ingot sensor mounting plate and an ingot sensor swing mechanism, the ingot sensor mounting plate is installed on the ingot sensor assembly mounting plate through the ingot sensor swing mechanism, and the ingot sensor is installed On the ingot sensor mounting plate, the ingot sensor mounting plate is a bent slat, and the ingot sensor swing mechanism includes the ingot sensor mounting plate rotating shaft, the sensor swing push rod and the sensor swing bearing seat, and the ingot sensor The mounting plate rotating shaft is installed on the ingot sensor assembly mounting plate through the sensor swing bearing seat, the ingot sensor mounting plate is installed on the ingot sensor mounting plate rotating shaft, and the sensor swing push rod is installed on the ingot sensor mounting plate rotating shaft, The length direction of the ingot sensor mounting plate is located in a plane perpendicular to the moving direction of the mobile trolley, and has the degree of freedom to rotate in the plane; The spun yarn detection rod assembly is composed of a yarn detection rod mounting plate rotating shaft, a yarn detection rod bearing seat, a yarn detection rod swing plate, a yarn detection rod installation plate, a yarn detection rod swing push rod, a yarn detection rod seat, and a yarn detection rod. The rotating shaft of the yarn detecting rod mounting plate is installed on the spun yarn detecting rod assembly mounting plate through the yarn detecting rod bearing seat, and the yarn detecting rod swing plate is a long strip with one end cantilevered on the rotating shaft of the yarn detecting rod mounting plate, and the yarn detecting rod The other end of the oscillating plate is installed with a yarn detecting rod mounting plate, which has the degree of freedom to rotate in a plane perpendicular to the moving direction of the moving trolley, and the yarn detecting rod swing push rod is a rod installed on the rotating shaft of the yarn detecting rod mounting plate , the yarn detecting rod base is an eccentric block, which is vertically installed on the yarn detecting rod mounting plate through bolts and bearings and can rotate around its axis. Components, the yarn detection rod is located in the plane determined by the center of gravity of the yarn detection rod seat and the axis of rotation, and has the degree of freedom to rotate in a plane parallel to the yarn detection rod mounting plate; The inclination adjustment device includes a connecting rod, an inclination power device, a transmission device and a limit device; the connecting rod is a connecting rod connecting the swing push rod of the yarn detection rod and the sensor swing push rod, and the rotation of the inclination power device is controlled by the transmission device. It is driven to the swing push rod of the yarn detection rod and the swing push rod of the sensor. The input side and output measurement position of the transmission device are not in one-to-one correspondence. The limit device is installed on the mounting plate of the spindle sensor assembly and the mounting plate of the spinning probe rod assembly. When the spindle sensor is located close to the limit position of the spinning frame, the center of gravity of all components that swing together with the spindle sensor and the yarn detection rod is located closer to the spinning frame than the rotary axis of the spindle sensor mounting plate. , when the spindle sensor is located at the extreme position away from the spinning frame, the center of gravity of all components that swing together with the spindle sensor and the yarn detection rod is located at a position farther away from the spinning frame than the rotary axis of the spindle sensor mounting plate rotation axis; The power supply device is a battery placed on the battery carrying plate. 2. The avoidance-type spun yarn breakage detection device according to claim 1, characterized in that the spun yarn probe assembly is equipped with a blocking rod, a movable stopper and a stopper electromagnet, and the stopper rod is connected to the yarn detection rod The slender rod coaxially installed on the other side of the yarn detection rod base, the yarn detection rod base is installed above the yarn detection rod mounting plate, and the yarn detection rod mounting plate is located on the rotation axis of the yarn detection rod base and the yarn detection rod swings There is a hole between the plates, and the movable block perpendicular to the yarn detecting rod mounting plate passes through the hole. One end of the movable blocking plate is connected with the movable rod of the blocking plate electromagnet at the lower part of the yarn detecting rod mounting plate, and the other end extends upwards. Out of the yarn detecting rod mounting plate, the two positions of the movable catch are the positions where the upper end is higher than and lower than the rotation plane of the blocking rod. 3. The avoidance-type spun yarn breakage detection device according to claim 1, characterized in that a magnetic steel facing the movable block and the blocking rod is installed on the yarn detecting rod swing plate close to the yarn detecting rod mounting plate. 4. The avoidance type spun yarn breakage detection device according to claim 1, characterized in that the control device includes a control cabinet, a controller circuit board, a sensor, a man-machine interface, an output drive circuit and a wireless communication module, and the control device The cabinet is a cuboid box installed on the vertical plate of the trolley. The controller circuit board is a circuit board developed by MCU installed in the control cabinet. The sensor includes an end detection sensor, an ingot sensor, and an ingot sensor. A plate swing position sensor, a shutter electromagnet state sensor and a yarn detection rod swing position sensor are all connected to the controller circuit board. 5. The avoidance-type spun yarn breakage detection device according to claim 1, characterized in that the mobile trolley is equipped with a collector connected with the lead wire of the carbon brush and the terminal of the battery, and the carbon brush of the collector is in contact with the outside of the driving wheel. 6. A ring spinning frame, characterized in that guide rails are installed on both sides of the ring spinning frame, the guide rails include an upper guide rail and a lower guide rail, the length of one side of the guide rail reaches the end of the front of the car, and the length of the other side of the guide rail reaches the rear of the car At the end of the guide rail, a conductive trolley line is installed on the guide rail, and at least one avoidance-type spun yarn breakage detection device according to claims 1 to 5 is placed on each side of the guide rail, and the supporting wheels and driving wheels of the mobile trolley are placed on On the upper guide rail, the centering wheel leans against the outer side of the lower guide rail. 7. The ring spinning frame according to claim 6, wherein a head mark and a tail mark are installed on the guide rail, and the installation position of the head mark is to ensure that the avoidance-type spinning broken end detection device In the process of moving to the front of the car, when the yarn probe leaves the last spindle, the end detection sensor can detect the head mark. During the movement, the end detection sensor can detect the tail mark when the yarn feeler leaves the last spindle. 8. The ring spinning frame according to claim 6, characterized in that it is equipped with a collective doffing device, on which is installed an independent upper guide rail which is equivalent in height to the air frame of the collective doffing device and is horizontal to the program board , the independent upper guide rail is installed on the reinforced connecting rod outside the rotation axis of the air frame through the upper guide rail support bracket in the vertical direction. The supporting wheel and driving wheel of the head detection device are suspended on the upper guide rail, and the centering wheel is leaned against the outer surface of the reinforcing connecting rod. 9. The ring spinning frame according to claim 8, the upper guide rail is insulated from the support bracket of the upper guide rail, the adjacent independent upper guide rail joints are connected by wires, and a single-phase conductive sliding contact line is installed on the independent lower guide rail, The independent upper guide rail and the single-phase conductive trolley line are respectively connected to the positive and negative poles of the charging circuit output, and the collector carbon brush installed on the mobile trolley is in contact with the support wheel and the centering wheel. 10. The ring spinning frame according to claim 6, when multiple avoidance-type yarn breakage detection devices are installed on each side of the spinning frame, the head mark and the tail mark are located on each avoidance-type yarn breakage detection device At the end of the operating range, and the installation heights of the head mark and the tail mark are slightly different between adjacent ranges, the installation heights of the end detection sensors of the avoidance type spun yarn breakage detection device installed in adjacent sections are also slightly different.