Covering yarn detection mechanism and system thereof

Abstract

The invention relates to a covering yarn detection mechanism and a system thereof. Comprising a creel, a filament roll, a filament lifting mechanism, a ring spinning mechanism, a covering yarn detection mechanism, a roving feeding stopping mechanism and a spindle, when a broken end monitoring sensor monitors that roving broken ends or filament broken ends exist in a cotton suction flute pipe, roving is braked, filament feeding is stopped, and a steel collar stops spun yarn winding; when the broken yarn monitoring sensor monitors the broken end of the spun yarn, the roving is braked, the filament feeding is stopped, and the steel collar stops the spun yarn winding; in the utility model, rough yarn broken ends or filament broken ends existing in the cotton suction flute pipe can be monitored through the broken end monitoring sensor, so that no matter the rough yarn is broken or the filament is broken, filament feeding stopping and rough yarn braking can be realized through the yarn lifting mechanism and the rough yarn feeding stopping mechanism, and spun yarn winding is stopped; the problem that the spun yarn broken end monitoring sensor at the steel collar plate cannot monitor roving missing is solved, the situation that spun yarn wrapped on a bobbin only contains filaments but does not contain roving is avoided, and the quality of finished spun yarn is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of spinning, and in particular to a core-spun yarn detection mechanism and a system thereof. Background Art

[0002] Core-spun yarn is also called composite yarn or covered yarn. It is a new type of yarn composed of two or more fibers. Core-spun yarn is generally made of synthetic fiber filaments with good strength and elasticity as the core yarn, and short fibers such as cotton, wool, and viscose are twisted together to form yarn.

[0003] The existing patent CN118547406A provides a single-spindle filament core-spun yarn automation device, which is arranged on each spindle position of the ring spinning machine, and is individually controlled by the main control center arranged on the ring spinning machine, and shares a speed encoder that is connected to the main control center for communication, which includes a filament creel, a filament feeding clutch located below the roving, a functionalized guide wheel located on the cradle of the ring spinning mechanism, a filament break monitoring sensor, a spun yarn break monitoring sensor and a spun yarn brake device; the ring spinning mechanism includes a front roller, a rear roller and a steel collar plate. This application performs real-time linkage monitoring and control of the filament and spun yarn status of each spindle position, effectively monitors the breakage phenomenon of filament and spun yarn, and performs data storage and analysis to ensure the uniformity and consistency of the quality of the ring-spun filament core-spun yarn.

[0004] However, the above technology still has the following defects: In the above technology, if the coarse yarn breaks in the ring spinning mechanism or near the ring spinning mechanism, since only the filament breakage monitoring sensor is arranged above the ring spinning mechanism, the breakage of the coarse yarn cannot be detected, and there is a fine yarn breakage monitoring sensor at the guide plate, and the fine yarn breakage monitoring sensor can detect the existence of filaments but cannot detect the lack of coarse yarn. Then the yarn will continue to be wrapped on the yarn tube at the guide plate, so that the yarn wrapped on the yarn tube only has filaments but no coarse yarn, resulting in that the quality of the finished fine yarn cannot be guaranteed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a core-spun yarn detection mechanism and a system thereof.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a core-spun yarn system, the innovation of which is: comprising A cotton suction flute, which sucks the broken ends of the roving or filament into the cotton suction flute by negative pressure; A broken end monitoring sensor is installed on the cotton suction flute.

[0007] Furthermore, the core-spun yarn detection mechanism also includes a connecting tube, an air duct and a clamping seat; The cotton suction flute tube is made of a transparent material and is connected to the air duct via the connecting pipe. The clamping seat is movably mounted on a clamping seat, and the clamping seat is clamped at the bottom of the outer wall of the cotton suction flute tube. The broken end monitoring sensor is installed in the clamping seat on both sides of the entrance section of the cotton suction flute tube.

[0008] Furthermore, the clamping seat includes a clamping body, and a clamping groove is provided on the top of the clamping body to just accommodate the cotton suction flute tube. The clamping body includes a tail clamping block, a middle clamping block and a head clamping block which are arranged in sequence from the tail of the cotton suction flute tube to the entrance of the cotton suction flute tube. The middle clamping block is provided with an installation groove on one side close to the head clamping block, and the broken end monitoring sensor is installed in the installation groove, and the transmitting end and the receiving end of the broken end monitoring sensor are respectively located on both sides of the entrance of the cotton suction flute tube.

[0009] Furthermore, the clamping body is also made of a transparent material; The tail clamping block is close to one end of the middle clamping block and is provided with a plurality of clamping limit grooves on the peripheral side of the clamping slot; A clamping protrusion is provided at the peripheral side of one end of the middle clamping block close to the tail clamping block, which is just clamped into the clamping limit groove; The other end of the head block is threadedly connected to the middle block, the transmitting end and the receiving end of the broken end monitoring sensor are not lower than the horizontal plane of the top inner wall of the inlet end of the cotton suction flute tube, and the bottom of the clamping body is provided with a wiring channel connected to the installation groove.

[0010] A core-spun yarn system using the core-spun yarn detection mechanism, the innovation of which is: A roving frame, on which a plurality of roving tubes are arranged; a filament roll disposed below the creel; A wire lifting mechanism, wherein the wire lifting mechanism is arranged below the filament roll and stops unwinding the filament roll by lifting the filament roll; A ring spinning mechanism, wherein the ring spinning mechanism comprises a front roller, a rear roller and a ring, and the roving and the filament are twisted to form a spun yarn after passing through the ring spinning mechanism; The core-spun yarn detection mechanism is arranged near the front roller, and includes a cotton suction flute and a broken end monitoring sensor, and sucks the broken ends of the roving or filament into the cotton suction flute through negative pressure; A roving stop feeding mechanism, wherein the roving stop feeding mechanism is arranged near the rear roller; A spindle, wherein a bobbin is provided on the spindle, and the spun yarn is guided by a yarn guide hook plate, passes through a wire ring located on a steel collar plate, and is wound on the bobbin, and a yarn break monitoring sensor is provided on the yarn guide hook plate; When the broken end monitoring sensor detects that the roving or filament is broken in the cotton suction flute, the roving is braked, the filament is stopped from feeding, and the spun yarn is stopped from winding; When the yarn breakage monitoring sensor detects that the yarn is broken, the roving is stopped, the filament feeding is stopped, and the winding of the yarn is stopped; The broken end monitoring sensor, the broken yarn monitoring sensor, the wire lifting mechanism, and the roving stop feeding mechanism are all arranged in linkage.

[0011] Further, the wire lifting mechanism includes a wire lifting plate; Two horizontal core-wrapped rollers are arranged at intervals below the roving frame, the filament roll is arranged at the top of the core-wrapped roller and is located between the two core-wrapped rollers, and the long axis direction of the filament roll is parallel to the long axis direction of the core-wrapped roller, and the filament roll is unwound through the core-wrapped roller; The wire lifting plate can be raised and lowered between the two core-wrapped rollers and is located below the filament roll. By lifting the wire lifting plate, the filament roll is separated from the core-wrapped roller to stop feeding the filament.

[0012] Furthermore, the wire lifting plate includes a body, which is a U-shaped structure, including a first vertical plate, a second vertical plate and a horizontal plate, and the top surfaces of the first vertical plate and the second vertical plate are both concave arc surfaces; The filament roll comprises a cylinder and a wire body wrapped in the middle of the circumference of the cylinder; The first vertical plate and the second vertical plate are respectively arranged below the cylinder exposed at both sides of the wire body.

[0013] Furthermore, a lifting assembly is provided at the bottom of the wire lifting plate; The lifting assembly includes a lifting motor, a gear and a rack. The lifting motor is arranged below the wire lifting plate, and its output end is horizontally arranged and installed with a gear. The rack is vertically arranged and meshed with the gear, and the top end of the rack is connected to the bottom end of the wire lifting plate.

[0014] Furthermore, a fixed plate is installed horizontally below the core-wrapped roller, and the bottom end of the rack, the gear and the lifting motor are installed on the fixed plate through a box body, so as to realize the position positioning of the lifting motor. The box body is provided with a lifting guide groove that just accommodates the rack to pass through.

[0015] Furthermore, two symmetrically arranged vertical plates are installed at the bottom end of the wire lifting plate, and a groove is opened on one side of the two vertical plates, so that the grooves of the two vertical plates form a clamping groove, and a clamping plate is fixed to the top of the rack, and the rack and the wire lifting plate are clamped with the clamping groove through the clamping plate, so that the lifting component can be quickly assembled, thereby improving the user experience.

[0016] The advantages of the present invention are: In this patent, the broken ends of roving or filaments in the cotton suction flute can be detected by the broken ends monitoring sensor. No matter whether the roving or filaments are broken, the filament feeding and roving braking can be achieved through the wire lifting mechanism and the roving stop feeding mechanism, and the roving winding can be stopped, thereby avoiding the problem that the roving broken ends monitoring sensor at the program board cannot detect the missing roving, and avoiding the situation that there are only filaments but no roving in the spun yarn wrapped on the yarn tube, thereby ensuring the quality of the finished spun yarn.

[0017] 2. The broken end monitoring sensor is installed on the cotton suction flute, and the cotton suction flute and the middle block are made of transparent materials, and the transmitting end and the receiving end of the broken end monitoring sensor are not lower than the horizontal plane of the top inner wall of the inlet end of the cotton suction flute. This ensures that the broken end monitoring sensor can successfully detect the presence of roving broken ends or filament broken ends in the cotton suction flute, further improving the quality of the finished spun yarn.

[0018] 3. The wire lifting plate can be raised and lowered and is arranged below the filament roll. When the filament roll breaks, the wire lifting plate is lifted by the lifting assembly, thereby lifting the filament roll, so that the filament roll is completely separated from the core-wrapped roller, which is convenient for subsequent timely processing of the spandex yarn on the broken filament roll, avoiding possible mechanical friction or pulling, facilitating joint processing, ensuring joint quality, avoiding long downtime caused by yarn quality problems, and ultimately improving production efficiency.

[0019] The wire lifting plate includes a main body, which is a U-shaped structure, including a first vertical plate, a second vertical plate and a horizontal plate, and the top surfaces of the first vertical plate and the second vertical plate are both concave arc surfaces, which are used to fit the outer wall of the filament roll, so as to facilitate the subsequent stable lifting of the filament roll.

[0020] 5. A lifting assembly is provided at the bottom of the wire lifting plate, and the filament roll is lifted by the lifting assembly; 6. A fixed plate is also installed horizontally below the core-wrapped roller. The bottom end of the rack, the gear and the lifting motor are installed on the fixed plate through a box body, so as to realize the position positioning of the lifting motor.

[0021] 7. Two symmetrically arranged vertical plates are installed at the bottom end of the wire lifting plate. A groove is provided on one side of the two vertical plates, and the grooves of the two vertical plates form a snap-in groove. A snap-in plate is fixed to the top of the rack. The rack and the wire lifting plate are snap-connected with the snap-in groove through the snap-in plate, so that the lifting component can be quickly assembled, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view of the present invention.

[0023] Figure 2 Part of the structure of the present invention Figure 1 .

[0024] Figure 3 Part of the structure of the present invention Figure 2 . DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] like Figure 3 As shown, the core-spun yarn detection mechanism 5 includes a cotton suction flute 51, a broken end monitoring sensor 52, a connecting tube 53, an air duct 54 and a clamping seat 55, and the broken ends of the roving or filament are sucked into the cotton suction flute 51 through negative pressure.

[0027] The cotton suction flute 51 is made of a transparent material, which is connected to the air duct 54 through a connecting tube 53. The clamping seat 55 can be movably installed on a clamping seat, which is fixedly installed on the main bracket and located between the ring spinning mechanism 4 and the yarn guide hook plate 9. The clamping seat 55 is clamped at the bottom of the outer wall of the cotton suction flute 51, and the broken end monitoring sensor 52 is installed in the clamping seat 55 on both sides of the entrance section near the cotton suction flute 51.

[0028] The clamping seat 55 includes a clamping body, and a clamping groove 551 is provided on the top of the clamping body to just accommodate the cotton suction flute 51. The clamping body includes a tail clamping block 552, a middle clamping block 553 and a head clamping block 554 which are arranged in sequence from the tail of the cotton suction flute 51 to the entrance of the cotton suction flute 51. The middle clamping block 553 is provided with an installation groove on one side close to the head clamping block 554, and a broken end monitoring sensor 52 is installed in the installation groove, and the transmitting end and the receiving end of the broken end monitoring sensor 52 are respectively located on both sides of the entrance of the cotton suction flute 51.

[0029] The card connection body is also made of transparent material.

[0030] A plurality of clamping limit grooves 555 are formed at one end of the tail clamping block 552 close to the middle clamping block 553 and around the clamping slot 551 .

[0031] A clamping protrusion is provided on the peripheral side of one end of the middle clamping block 553 close to the tail clamping block 552 and is just clamped into the clamping limit groove 555 .

[0032] The head block 554 is threadedly connected to the other end of the middle block 553. The transmitting end and the receiving end of the broken end monitoring sensor 52 are not lower than the horizontal plane of the top inner wall of the inlet end of the cotton suction flute 51. The bottom of the clamping body is located below the broken end monitoring sensor 52 and is provided with a wiring channel 556 connected to the installation groove.

[0033] The broken end monitoring sensor 52 is installed on the cotton suction flute 51, and the cotton suction flute 51 and the middle block 553 are both made of transparent material, and the transmitting end and the receiving end of the broken end monitoring sensor 52 are not lower than the horizontal plane of the top inner wall of the inlet end of the cotton suction flute 51, which can ensure that the broken end monitoring sensor 52 can successfully detect the existence of coarse yarn broken ends or filament broken ends in the cotton suction flute 51, thereby further improving the quality of the finished spun yarn.

[0034] In this patent, the broken ends monitoring sensor 52 can monitor the broken ends of the coarse yarn or the filaments in the cotton suction flute 51. No matter whether the coarse yarn or the filaments are broken, the filament feeding and the coarse yarn stopping can be stopped by the wire lifting mechanism 3 and the coarse yarn stopping mechanism 6, and the spun yarn winding can be stopped, thereby avoiding the problem that the spun yarn broken end monitoring sensor 52 at the program board 44 cannot monitor the missing spun yarn, and avoiding the situation that there are only filaments but no coarse yarn in the spun yarn wrapped on the yarn tube, thereby ensuring the quality of the finished spun yarn.

[0035] like Figure 1 A core-spun yarn system is shown, comprising a main support, a roving frame 1, a filament roll 2, a wire lifting mechanism 3, a ring spinning mechanism 4, a roving stop feeding mechanism 6, and a spindle 7, and the roving frame 1, the filament roll 2, the wire lifting mechanism 3, the ring spinning mechanism 4, the core-spun yarn detection mechanism 5, and the spindle 7 are arranged on the main support in sequence from top to bottom.

[0036] The roving frame 1 is arranged horizontally, and a plurality of roving tubes are arranged on the roving frame 1 .

[0037] The filament roll 2 is arranged below the creel 1 .

[0038] The wire lifting mechanism 3 is arranged below the filament roll 2 , and stops unwinding the filament roll 2 by lifting the filament roll 2 .

[0039] The ring spinning mechanism 4 comprises a front roller 41, a middle roller 42, a rear roller 43 and a ring 44. The roving and the filament are twisted to form spun yarn after passing through the ring spinning mechanism 4.

[0040] The core-spun yarn detection mechanism 5 is arranged near the front roller 41 .

[0041] The roving stop feeding mechanism 6 is arranged near the rear roller 43 .

[0042] The ring spinning mechanism 4 and the roving stop feeding mechanism 6 are both prior art and will not be described in detail in this embodiment.

[0043] The spindle 7 is provided with a bobbin. The spun yarn is guided by a yarn guide hook plate 9, passes through a wire ring on a steel collar plate, and is wound on the bobbin. A yarn break monitoring sensor is provided on the yarn guide hook plate 9.

[0044] When the broken end monitoring sensor 52 detects that the roving or filament is broken in the cotton suction flute 51, the roving is braked, the filament is stopped from being fed, and the program 44 stops the spun yarn winding.

[0045] When the yarn breakage monitoring sensor detects that the yarn is broken, the roving is stopped, the filament feeding is stopped, and the program 44 stops the yarn winding.

[0046] The broken yarn monitoring sensor 52, the broken yarn monitoring sensor, the wire lifting mechanism 3, and the roving stop feeding mechanism 6 are all arranged in linkage.

[0047] like Figure 2 As shown, the wire lifting mechanism 3 includes a wire lifting plate 31 .

[0048] Two horizontal core rollers 8 are arranged at intervals below the coarse yarn frame 1, and the filament roll 2 is arranged at the top of the core rollers 8 and is located between the two core rollers 8, and the long axis direction of the filament roll 2 is parallel to the long axis direction of the core rollers 8, so the filament roll 2 is unwound through the core rollers 8.

[0049] A fixed plate 32 is also installed horizontally below the core-wrapped roller 8. The bottom end of the rack 333, the gear 332 and the lifting motor 331 are mounted on the fixed plate 32 through a box body 35, so as to realize the position positioning of the lifting motor 331.

[0050] The filament roll 2 is arranged at the top of the core-wrapped roller 8 and is located between the two core-wrapped rollers 8, and the long axis direction of the filament roll 2 is parallel to the long axis direction of the core-wrapped roller 8. In this embodiment, two filament rolls 2 are provided, and each filament roll 2 corresponds to a wire lifting plate 31.

[0051] The filament roll 2 includes a cylinder 21 and a thread body 22 wrapped around the middle of the cylinder 21 .

[0052] The wire lifting plate 31 can be raised and lowered and is disposed between the two core-wrapped rollers 8 and is located below the filament roll 2 . The filament roll 2 can be lifted by lifting the wire lifting plate 31 .

[0053] The wire lifting plate 31 includes a main body, which is a U-shaped structure, including a first vertical plate, a second vertical plate and a horizontal plate, and the top surfaces of the first vertical plate and the second vertical plate are both concave arc surfaces consistent with the curvature of the outer wall of the cylinder 21 of the filament roll 2, which are used to fit the outer wall of the filament roll 2 to facilitate the subsequent stable lifting of the filament roll 2.

[0054] The first vertical plate and the second vertical plate are respectively disposed below the cylinder 21 exposed at both sides of the linear body.

[0055] A lifting assembly 33 is provided at the bottom of the wire lifting plate 31 , and the filament roll 2 is lifted by the lifting assembly 33 .

[0056] The lifting assembly 33 includes a lifting motor 331, a gear 332 and a rack 333. The lifting motor 331 is arranged below the wire lifting plate 31, and its output end is horizontally arranged and equipped with a gear 332. The rack 333 is vertically arranged and meshed with the gear 332, and the top end of the rack 333 is connected to the bottom end of the wire lifting plate 31.

[0057] A guide block 34 is fixed to a side of the rack 333 away from the gear 332 , and the guide block 34 is slidably connected to the lifting guide groove.

[0058] The box body 35 is provided with a lifting guide groove which can just accommodate the rack 333 and the guide block 34 to pass through.

[0059] Two symmetrically arranged vertical plates 36 are installed at the bottom end of the wire lifting plate 31. A groove is provided on one side of the two vertical plates 36, and the grooves of the two vertical plates form a snap-in groove. A snap-in plate 37 is fixed to the top of the rack 333. The rack 333 and the wire lifting plate 31 are snap-connected with the snap-in groove through the snap-in plate 37, so that the lifting component 33 can be quickly assembled, thereby improving the user experience.

[0060] In the present structure, the wire lifting plate 31 can be raised and lowered and arranged below the filament roll 2. When the filament roll 2 breaks, the wire lifting plate 31 is lifted by the lifting assembly 33, thereby lifting the filament roll 2, so that the filament roll 2 is completely separated from the core-wrapped roller 8, which is convenient for the subsequent timely processing of the broken spandex yarn on the filament roll 2, avoiding possible mechanical friction or pulling, facilitating the joint processing, ensuring the joint quality, avoiding the problem of long downtime due to yarn quality problems, and ultimately achieving improved production efficiency.

[0061] When the spandex yarn breaks, the lifting motor 331 is started to drive the gear 332 to rotate, driving the rack 333 to rise, and the wire lifting plate 31 rises synchronously to fit the outer wall of the cylinder 21 of the spandex yarn. The lifting motor 331 continues to operate, so that the wire lifting plate 31 lifts the spandex yarn until it is completely separated from the core roller 8, completing the wire lifting, and then carrying out subsequent processing.

[0062] Working principle: The roving and the filaments are both fed into the ring spinning mechanism 4. If the roving or the filaments are broken, the broken ends of the roving or the filaments are sucked in through the cotton suction flute 51.

[0063] As long as the broken end monitoring sensor 52 detects the broken ends of the roving or the filaments in the cotton suction flute 51, the roving will be stopped by the roving stop feeding mechanism 6, the filament will be stopped by lifting the filament roll by the wire lifting mechanism 3, and the spun yarn winding will be stopped at the program 44.

[0064] As long as the yarn breakage monitoring sensor detects that the spun yarn is broken, the roving is stopped by the roving stop feeding mechanism 6, the filament is stopped by lifting the filament reel by the filament lifting mechanism 3, and the spun yarn winding is stopped at the program 44; Only when neither the broken end monitoring sensor 52 nor the broken yarn monitoring sensor detects broken ends or broken yarns, the finished spun yarn obtained by twisting the ring spinning mechanism 4 passes through the yarn guide hook plate 9 and the guide 44 and is wound onto the bobbin on the spindle to obtain the finished bobbin yarn.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A core-spun yarn detection mechanism, characterized in that: include A cotton suction flute, which sucks the broken ends of the roving or filament into the cotton suction flute by negative pressure; A broken end monitoring sensor is installed on the cotton suction flute.

2. A core-spun yarn detection mechanism according to claim 1, characterized in that: It also includes a connecting pipe, an air duct and a card connector; The cotton suction flute tube is made of a transparent material and is connected to the air duct via the connecting pipe. The clamping seat is movably mounted on a clamping seat, and the clamping seat is clamped at the bottom of the outer wall of the cotton suction flute tube. The broken end monitoring sensor is installed in the clamping seat on both sides of the entrance section of the cotton suction flute tube.

3. A core-spun yarn detection mechanism according to claim 2, characterized in that: The clamping seat includes a clamping body, and a clamping groove is provided on the top of the clamping body to just accommodate the cotton suction flute tube. The clamping body includes a tail clamping block, a middle clamping block and a head clamping block which are arranged in sequence from the tail of the cotton suction flute tube to the entrance of the cotton suction flute tube. A mounting groove is provided on the side of the middle clamping block close to the head clamping block, and the broken end monitoring sensor is installed in the mounting groove, and the transmitting end and the receiving end of the broken end monitoring sensor are respectively located on both sides of the entrance of the cotton suction flute tube.

4. A core-spun yarn detection mechanism according to claim 3, characterized in that: The clamping body is also made of transparent material; The tail clamping block is close to one end of the middle clamping block and is located on the periphery of the clamping slot and has a plurality of clamping limit grooves; A clamping protrusion is provided at the peripheral side of one end of the middle clamping block close to the tail clamping block, which is just clamped into the clamping limit groove; The other end of the head block is threadedly connected to the middle block, the transmitting end and the receiving end of the broken end monitoring sensor are not lower than the horizontal plane of the top inner wall of the inlet end of the cotton suction flute tube, and the bottom of the clamping body is provided with a wiring channel connected to the installation groove.

5. A core-spun yarn system using the core-spun yarn detection mechanism according to any one of claims 1 to 4, characterized in that: include A roving frame, on which a plurality of roving tubes are arranged; a filament roll disposed below the creel; A wire lifting mechanism, the wire lifting mechanism is arranged below the filament roll, and stops unwinding the filament roll by lifting the filament roll; A ring spinning mechanism, wherein the ring spinning mechanism comprises a front roller, a rear roller and a ring, and the roving and the filament are twisted to form a spun yarn after passing through the ring spinning mechanism; The core-spun yarn detection mechanism is arranged near the front roller, and includes a cotton suction flute and a broken yarn monitoring sensor; A roving stop feeding mechanism, wherein the roving stop feeding mechanism is arranged near the rear roller; A spindle, wherein a bobbin is provided on the spindle, and the spun yarn is guided by a yarn guide hook plate, passes through a wire ring located on a steel collar plate, and is wound on the bobbin, and a yarn break monitoring sensor is provided on the yarn guide hook plate; When the broken end monitoring sensor detects that the roving or filament is broken in the cotton suction flute, the roving is braked, the filament is stopped from feeding, and the spun yarn is stopped from winding; When the yarn breakage monitoring sensor detects that the yarn is broken, the roving is stopped, the filament feeding is stopped, and the yarn winding is stopped; The broken end monitoring sensor, the broken yarn monitoring sensor, the wire lifting mechanism, and the roving stop feeding mechanism are all arranged in linkage.

6. A core-spun yarn system according to claim 5, characterized in that: The wire lifting mechanism comprises a wire lifting plate; Two horizontal core-wrapped rollers are arranged at intervals below the roving frame, the filament roll is arranged at the top of the core-wrapped roller and is located between the two core-wrapped rollers, and the long axis direction of the filament roll is parallel to the long axis direction of the core-wrapped roller, and the filament roll is unwound through the core-wrapped roller; The wire lifting plate can be raised and lowered between the two core-wrapped rollers and is located below the filament roll. By lifting the wire lifting plate, the filament roll is separated from the core-wrapped roller to stop feeding the filament.

7. A core-spun yarn system according to claim 6, characterized in that: The wire lifting plate includes a body, which is a U-shaped structure, including a first vertical plate, a second vertical plate and a horizontal plate, and the top surfaces of the first vertical plate and the second vertical plate are both concave arc surfaces; The filament roll comprises a cylinder and a wire body wrapped in the middle of the circumference of the cylinder; The first vertical plate and the second vertical plate are respectively arranged below the cylinder exposed at both sides of the wire body.

8. A core-spun yarn system according to claim 6, characterized in that: A lifting assembly is provided at the bottom of the wire lifting plate; The lifting assembly includes a lifting motor, a gear and a rack. The lifting motor is arranged below the wire lifting plate, and its output end is horizontally arranged and installed with a gear. The rack is vertically arranged and meshed with the gear, and the top end of the rack is connected to the bottom end of the wire lifting plate.

9. A core-spun yarn system according to claim 6, characterized in that: A fixed plate is also installed horizontally below the core-wrapped roller, and the bottom end of the rack, the gear and the lifting motor are installed on the fixed plate through a box body. The box body is provided with a lifting guide groove that just accommodates the rack to pass through.

10. A core-spun yarn system according to claim 6, characterized in that: Two symmetrically arranged vertical plates are installed at the bottom end of the wire lifting plate, and a groove is opened on one side of the two vertical plates, so that the grooves of the two vertical plates form a clamping groove, and a clamping plate is fixed on the top of the rack, and the rack and the wire lifting plate are clamped with the clamping groove through the clamping plate.

Images