Two-for-one twister broken line detection device and automatic wiring mechanism

Abstract

The invention relates to the technical field of two-for-one twister production, in particular to a two-for-one twister broken yarn detection device and an automatic yarn connection mechanism, the two-for-one twister broken yarn detection device comprises a two-for-one twister rack and a yarn guide mechanism, and the two-for-one twister rack is provided with a pay-off cylinder and a twisting cylinder. Through the arrangement of the yarn guide mechanism, the guide wheel and the tensioning piece can keep tensioning acting force on the yarn when the two-for-one twister is in a normal state, and through the cooperation of the arrangement of the extrusion piece, once the yarn is broken, the yarn breaking condition can be rapidly detected through the tensioning change of the elastic abutting piece; a horizontal shuttle guiding mechanism and a yarn guiding mechanism are combined, a broken yarn clamping assembly is rapidly started, broken yarn is rapidly clamped, and through cooperation of an air injection assembly, surface dust removal of the yarn in the normal state can be achieved, broken yarn sections can be continuously blown, the situation that the yarn ends are curled in a conical barrel is avoided, and the yarn quality is improved. The wire end can be conveniently exposed, and the automatic wiring efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of doubling machine production, and specifically relates to a yarn breakage detection device and an automatic wire connection mechanism for a doubling machine. Background Art

[0002] The doubling machine is an important part of textile equipment and is used for twisting yarn. During the operation of the doubling machine, the yarn is touched and worn by multiple components and is affected by its own tension, and yarn breakage often occurs. After the yarn breakage occurs, it is necessary to stop the equipment in time and reconnect the yarn to ensure the normal progress of subsequent textile operations. Traditional yarn breakage detection devices for doubling machines often only have the function of detecting yarn breakage. When yarn breakage is detected, a stop signal will be triggered, but the broken wire position cannot be fixed in time. This causes operators to spend a lot of time looking for the thread end after the yarn breaks, reducing the textile efficiency.

[0003] In the prior art, such as a wire connection device for a doubling machine with a publication number of CN212895174U, which includes a slide rail. The outer side wall of the slide rail is movably sleeved with a slider. The top end surface of the slider is fixedly installed with a pneumatic push rod. The output end of the pneumatic push rod is fixedly installed with a splicer. The right end of the bottom end surface of the splicer is communicated with a connecting pipe. One end of the connecting pipe away from the splicer is connected with a hose. One end of the hose away from the connecting pipe is connected with a joint assembly. An air supply main pipeline and an air compressor are arranged behind the slide rail. The air supply main pipeline and the air compressor are communicated. Thus, when the wire on the doubling machine breaks, the splicer is pulled to move along the slide rail to the doubling machine where the wire breaks, and the air of the nearby plug assembly is introduced into the splicer, and then the broken yarn is re-twisted. This not only saves the resources of idle splicers, but also prevents the time for re-twisting the yarn from being too long and affecting the production progress.

[0004] However, in the actual use process, the broken wire is quickly twisted by means of a splicer. However, in the actual use process, once the yarn breaks, the broken wire cannot be quickly detected, resulting in the rapid relaxation of the broken yarn in the broken state and relatively fast curling, making it difficult for the operator to find the broken wire segment for splicing, affecting the efficiency of wire connection and the production benefit of doubling.

[0005] Therefore, the present invention proposes a yarn breakage detection device and an automatic wire connection mechanism for a doubling machine to solve the problem that the prior art cannot achieve rapid detection of broken wires, resulting in the rapid relaxation of the broken yarn in the broken state and relatively fast curling, making it difficult for the operator to find the broken wire segment for splicing and affecting the efficiency of wire connection. It can be combined with the yarn breakage detection device, and the broken wire clamping assembly responds quickly and cooperates with the air jet assembly. It can not only achieve surface dust removal of the yarn in the normal state, but also blow the broken wire segment to avoid the curling of the thread end, facilitate the exposure of the thread end, and accelerate the efficiency of automatic wire connection. Summary of the Invention

[0006] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a broken yarn detection device and an automatic wire connection mechanism for a doubling twisting machine, so as to solve the problems proposed in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A broken yarn detection device for a doubling twisting machine, including a doubling twisting machine frame and a yarn guiding mechanism. An unwinding bobbin and a twisting bobbin are arranged on the doubling twisting machine frame. A support partition is arranged between the unwinding bobbin and the twisting bobbin. The yarn guiding mechanism includes a rotating rod, and the rotating rod is rotatably installed inside the doubling twisting machine frame. A limiting component and a tension sensing component are arranged outside the rotating rod. The limiting component includes a limiting cylinder, a guiding wheel and an extrusion piece. The guiding wheel is fixedly connected to the limiting cylinder, and an induction ring is arranged on the outer surface of the guiding wheel. The tension sensing component includes an inner wheel plate and a tensioning piece. The limiting cylinder and the inner wheel plate are fixedly installed outside the rotating rod.

[0008] Preferably, a limiting groove is opened on the central outer peripheral surface of the inner wheel plate, and movable grooves are opened through both sides of the limiting groove. The tensioning piece is arranged inside the limiting groove. The tensioning piece includes a yarn contact roller and a movable block. The movable block is slidably installed inside the movable groove, and an elastic abutting piece is fixedly connected to the lower end of the movable block.

[0009] Preferably, the elastic abutting piece includes a fixed sleeve and a movable abutting rod. The fixed sleeve is fixedly installed on the inner wall of the inner wheel plate. A spring wire is fixedly installed on the bottom surface of the inner cavity of the fixed sleeve. The upper end of the spring wire is fixedly connected to the bottom surface of the movable abutting rod. The outer surface of the end of the movable abutting rod away from the spring wire is fixedly connected to the lower surface of the movable block.

[0010] Preferably, the extrusion piece includes an induction sleeve ring and a pressure block. The induction sleeve ring is in a ring-shaped block structure. The induction sleeve ring is fixedly installed on the outer surface of the inner wheel plate. The pressure block is fixedly installed on the outer ring surface of the induction sleeve ring. There are multiple groups of pressure blocks and they are circularly arranged in an array about the central axis of the inner wheel plate. The upper surface of the pressure block is in movable contact with the lower surface of the movable block and corresponds one by one. The induction sleeve ring is electrically connected to the induction ring.

[0011] An automatic wire connection mechanism is applicable to a broken wire detection device of a doubling twisting machine. The automatic wire connection mechanism includes a horizontal shuttle guiding mechanism, and the horizontal shuttle guiding mechanism includes a horizontal cross bar, a splicer and a broken wire limiting member. The broken wire limiting member is composed of a connecting ring one, a connecting ring two and a conical cylinder. The connecting ring one, the connecting ring two and the conical cylinder are fixedly connected by bolts. A broken wire clamping assembly is arranged on the inner side of the connecting ring one, and a toothed support member, a docking conical cover and a dust accumulating member are arranged on the inner side of the connecting ring two. The dust accumulating member is distributed between the outer side of the docking conical cover and the inner side of the conical cylinder. A jetting assembly is arranged on the connecting ring two. The jetting assembly includes an air storage cover, the air storage cover is sleeved and installed on the outer surface of the connecting ring two, the input end of the air storage cover is fixedly connected with a micro air pump, and the output end of the air storage cover is hermetically connected with a jetting pipe penetrating into the inner side of the toothed support member.

[0012] Preferably, the broken wire clamping assembly includes a limiting ring plate, the limiting ring plate is fixedly installed on the inner circumferential surface of the connecting ring one, a motor is fixedly installed on the outer surface of one side of the limiting ring plate, a toothed piece one is fixedly connected to the output shaft of the motor, a toothed ring is meshed and rotated on the outer surface of the toothed piece one, a rotating ring is fixedly connected to one side surface of the toothed ring, the outer surface of the rotating ring is rotationally connected with the inner wall of the limiting ring plate, a toothed piece two is meshed and rotated inside the toothed ring, the toothed piece two is rotatably installed on the outer surface of the limiting ring plate, a swinging arm is fixedly connected to the toothed piece two, a wire clamping roller is rotatably connected to the other end of the swinging arm, and the motor is electrically connected with an induction ring.

[0013] Preferably, the toothed support member is integrally formed by a circular ring piece and toothed pieces. The outer circumferential surface of the circular ring piece is fixedly connected with the inner circumferential surface of the limiting ring plate, and one end of the motor is fixedly installed on the outer surface of the circular ring piece. The motor and the limiting ring plate are coaxially distributed.

[0014] Preferably, the dust accumulating member includes a retention folding plate. The two ends of the retention folding plate are respectively fixedly connected with a fixing ring one and a fixing ring two. A connecting wing plate is fixedly connected to the outer circumferential surface of the fixing ring one. There are two groups of connecting wing plates and they are mirror-symmetrically distributed about the central axis of the retention folding plate.

[0015] Preferably, an embedding groove is formed on the inner wall of the connecting wing plate, an embedding block is movably embedded on the inner surface of the embedding groove, and the embedding block is fixedly installed on the outer surface of the toothed support member.

[0016] Preferably, a narrowing cover is fixedly installed on the inner surface of the conical cylinder. One end of the narrowing cover is adaptively docked with the output end of the docking conical cover, and through grooves are uniformly formed on the inner wall of the narrowing cover.

[0017] Compared with the prior art, the beneficial effects of the present invention are: A double-twisting machine wire break detection device and an automatic wire connection mechanism proposed by the present invention can, through the setting of a yarn guiding mechanism, enable the guide wheel and the tensioning member to maintain a tensioning force on the yarn in the normal state of the double-twisting machine. With the setting of the pressing member, once the yarn breaks, the wire break situation can be quickly detected through the tension change of the elastic abutting member; and by combining the horizontal shuttle guiding mechanism with the yarn guiding mechanism, the wire break clamping assembly is quickly activated to quickly clamp the broken wire, and through the cooperation of the air jet assembly, it can not only achieve surface dust removal of the yarn in the normal state, but also continuously blow the broken wire segment to prevent the wire head from curling inside the conical tube, facilitating the exposure of the wire head and accelerating the efficiency of automatic wire connection, further improving the sensitivity of wire break detection of the double-twisting machine and the efficiency of automatic wire connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the double-twisting machine of the present invention; Figure 2 is of the present invention Figure 1 magnified structural schematic diagram at A; Figure 3 is a disassembled structural schematic diagram of the yarn guiding mechanism of the present invention; Figure 4 is a partial half-sectional structural schematic diagram of the yarn guiding mechanism of the present invention; Figure 5 is of the present invention Figure 4 magnified structural schematic diagram at B; Figure 6 is a disassembled structural schematic diagram of the splicer and the wire break limiting member of the present invention; Figure 7 is a half-sectional structural schematic diagram of the wire break limiting member of the present invention; Figure 8 is of the present invention ​ magnified structural schematic diagram at C; ​ is of the present invention ​ magnified structural schematic diagram at D; ​ is a disassembled structural schematic of the wire break limiting member of the present invention ​ ; ​ is a disassembled structural schematic of the wire break limiting member of the present invention ​ ; ​ is a structural schematic of the connecting ring one and the wire break clamping assembly of the present invention ​ ; ​ is a structural schematic of the connecting ring one and the wire break clamping assembly of the present invention ​ ; ​Schematic exploded view of the first connecting ring of the present invention and the dust accumulation member; ​ Schematic side view of the connection between the first connecting ring of the present invention and the dust accumulation member.

[0019] In the figure: 1, doubling machine frame; 11, wire pay-off bobbin; 12, twisting bobbin; 13, support partition; 2, yarn guiding mechanism; 21, rotating rod; 22, limiting cylinder; 221, guiding wheel; 23, inner wheel plate; 230, limiting groove; 2300, movable groove; 231, yarn contact roller; 2311, movable block; 232, fixed sleeve; 2321, elastic wire; 2322, movable abutting rod; 233, induction collar; 2331, pressure block; 3, horizontal shuttle guiding mechanism; 31, horizontal cross bar; 32, splicer; 33, broken wire limiting member; 331, first connecting ring; 3311, limiting ring plate; 3312, motor; 3313, first tooth piece; 3314, tooth ring; 3315, second tooth piece; 3316, swing arm; 33161, wire clamping roller; 332, second connecting ring; 3321, tooth-shaped support member; 3322, docking cone cover; 3323, retention flap; 33231, first fixing ring; 33232, second fixing ring; 33233, connecting wing plate; 33234, insert block; 333, conical cylinder; 3331, narrowing cover; 334, air storage cover; 3341, air injection pipe. Detailed implementation manners

[0020] In order to clearly and completely describe the purpose, technical solution of the present invention and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0021] Embodiment 1, please refer to ​ , the present invention provides a technical solution: a doubling machine broken wire detection device, including a doubling machine frame 1 and a yarn guiding mechanism 2. A wire pay-off bobbin 11 and a twisting bobbin 12 are arranged on the doubling machine frame 1, and a support partition 13 is arranged between the wire pay-off bobbin 11 and the twisting bobbin 12. The yarn guiding mechanism 2 includes a rotating rod 21, the rotating rod 21 is rotatably installed inside the doubling machine frame 1, and a limiting assembly and a tension sensing assembly are arranged outside the rotating rod 21. The limiting assembly includes a limiting cylinder 22, a guiding wheel 221 and an extrusion member. The guiding wheel 221 is fixedly connected to the limiting cylinder 22, and an induction ring is arranged on the outer surface of the guiding wheel 221. The tension sensing assembly includes an inner wheel plate 23 and a tensioning member. The limiting cylinder 22 and the inner wheel plate 23 are fixedly installed outside the rotating rod 21; In this embodiment, the limiting cylinder 22 and the guide wheel 221 are fixedly connected to each other to support, install and protect the tension sensing assembly as a whole. When the rotating rod 21 rotates under the driving force, the limiting assembly and the tension sensing assembly rotate synchronously. The yarn is pulled out from the unwinding cylinder 11 and passes through the yarn guiding mechanism 2 as a whole as the guiding structure through which the yarn passes, so as to realize the tension detection of the yarn. It should be noted that when the doubling and twisting machine is working normally, the yarn bypasses the surface of the tensioning member. At this time, the tension sensing assembly is affected by the yarn tension. When the yarn breaks, the tension disappears, and multiple tensioning members release the extrusion restriction on the extrusion member. At this time, the induction ring senses the change of pressure, so as to judge the yarn breakage condition of the doubling and twisting machine and make a quick response to the horizontal shuttle guiding mechanism 3.

[0022] Embodiment 2. Refer to the attached ​ , on the basis of Embodiment 1, in order to quickly judge the yarn breakage condition: a limiting groove 230 is formed on the central outer peripheral surface of the inner wheel plate 23, and movable grooves 2300 are formed through both sides of the limiting groove 230. The tensioning member is arranged inside the limiting groove 230. The tensioning member includes a yarn contact roller 231 and a movable block 2311. The movable block 2311 is slidably installed inside the movable groove 2300, and an elastic abutting member is fixedly connected to the lower end of the movable block 2311; The elastic abutting member includes a fixed sleeve 232 and a movable abutting rod 2322. The fixed sleeve 232 is fixedly installed on the inner wall of the inner wheel plate 23. A spring wire 2321 is fixedly installed on the bottom surface of the inner cavity of the fixed sleeve 232. The upper end of the spring wire 2321 is fixedly connected to the bottom surface of the movable abutting rod 2322. The outer surface of the end of the movable abutting rod 2322 away from the spring wire 2321 is fixedly connected to the lower surface of the movable block 2311; The extrusion member includes an induction collar 233 and a pressure block 2331. The induction collar 233 is in a ring-shaped block structure. The induction collar 233 is fixedly installed on the outer surface of the inner wheel plate 23. The pressure block 2331 is fixedly installed on the outer ring surface of the induction collar 233. Multiple pressure blocks 2331 are arranged in a circular array about the central axis of the inner wheel plate 23. The upper surface of the pressure block 2331 is movably abutted against the lower surface of the movable block 2311 and corresponds one by one; In this embodiment, through the overall special shape design of the inner wheel plate 23, a modular design is formed with the guide wheel 221, and the two constitute a lip-shaped structure, which can ensure the sealing of the overall structure of the yarn guiding mechanism 2. When the doubling and twisting machine is in normal working condition, the yarn winds around the surfaces of multiple yarn contact rollers 231 to guide the yarn. During normal twisting operation, the yarn contact roller 231 is pulled by the yarn to drive the elastic abutting member inside to undergo elastic deformation. At this time, the movable block 2311 slides inside the movable groove 2300 and squeezes the movable abutting rod 2322 inward, causing the movable abutting rod 2322 to press down on the elastic wire 2321. The elastic wire 2321 is compressed, and at this time, the movable block 2311 correspondingly squeezes the pressure block 2331. Once the yarn breaks, the yarn contact roller 231 no longer receives the pressure from the yarn, the elastic wire 2321 is released, and at this time, the pressure block 2331 is no longer squeezed. The induction collar 233 is electrically connected to the induction ring on the outer side of the guide wheel 221, emits a control signal, judges the yarn breakage situation, and issues an alarm, enabling the operator to quickly perform subsequent wiring operations; it should be noted that the elastic abutting member can not only serve as the structural support of the yarn contact roller 231, but also provide a tension force to the yarn to keep the yarn under appropriate tension during the twisting process.

[0023] Embodiment 3. Referring to the attached ​ Figure, on the basis of Embodiment 2, the present invention further provides a technical solution: an automatic wiring mechanism applicable to a doubling and twisting machine yarn breakage detection device. The automatic wiring mechanism includes a horizontal shuttle guiding mechanism 3. The horizontal shuttle guiding mechanism 3 includes a horizontal crossbar 31, a splicer 32, and a yarn breakage limiting member 33. The yarn breakage limiting member 33 is composed of a connecting ring one 331, a connecting ring two 332, and a tapered cylinder 333. The connecting ring one 331, the connecting ring two 332, and the tapered cylinder 333 are fixedly connected by bolts. A yarn breakage clamping assembly is arranged inside the connecting ring one 331. A toothed support member 3321, a butt joint cone cover 3322, and a dust accumulation member are arranged inside the connecting ring two 332. The dust accumulation member is distributed between the outer side of the butt joint cone cover 3322 and the inner side of the tapered cylinder 333. A jetting assembly is arranged on the connecting ring two 332. The jetting assembly includes an air storage cover 334. The air storage cover 334 is sleeved and installed on the outer surface of the connecting ring two 332. The input end of the air storage cover 334 is fixedly connected with a micro air pump, and the output end of the air storage cover 334 is hermetically connected with a jetting pipe 3341 penetrating into the inner side of the toothed support member 3321; a narrowing cover 3331 is fixedly installed on the inner surface of the tapered cylinder 333. One end of the narrowing cover 3331 is adaptively butted with the output end of the butt joint cone cover 3322. Through grooves are uniformly opened on the inner wall of the narrowing cover 3331; In this embodiment, a broken wire limiting member 33 is designed at the front end of the splicing device 32. When the broken wire detection device of the doubling machine detects a broken wire, the induction ring emits a broken wire signal, and the equipment stops. At the same time, the broken wire clamping assembly responds quickly to quickly clamp the broken wire to prevent the broken wire from being recovered under the rotational inertia of the twisting bobbin 12. And when the broken wire clamping assembly is in the starting state, the air jet assembly remains working to blow the yarn in the center. Refer to ​ As shown, the air jet assembly provides a high-speed air flow to the yarn to prevent the yarn from curling. It should be noted that when the doubling machine is in the normal working state, the air jet assembly can also work continuously, which can blow the dust on the surface of the continuously spliced yarn. In cooperation with the dust accumulating member and the narrowing cover 3331, the dust can enter the inner cavity of the conical cylinder 333 for collection, further improving the splicing efficiency and the twisting quality of the doubling machine.

[0024] Embodiment 4. Refer to the appendix ​ , on the basis of Embodiment 3, in order to realize the clamping of the broken wire: the broken wire clamping assembly includes a limiting ring plate 3311, the limiting ring plate 3311 is fixedly installed on the inner ring surface of the connecting ring 1 331, and a motor 3312 is fixedly installed on the outer surface of one side of the limiting ring plate 3311. A first toothed piece 3313 is fixedly connected to the output shaft of the motor 3312. A toothed ring 3314 is meshed and rotated on the outer surface of the first toothed piece 3313. A rotating ring is fixedly connected to one side surface of the toothed ring 3314. The outer surface of the rotating ring is rotatably connected to the inner wall of the limiting ring plate 3311. A second toothed piece 3315 is meshed and rotated inside the toothed ring 3314. The second toothed piece 3315 is rotatably installed on the outer surface of the limiting ring plate 3311. A swing arm 3316 is fixedly connected to the second toothed piece 3315. The other end of the swing arm 3316 is rotatably connected to a wire clamping roller 33161; In this embodiment, when the yarn breaks, the motor 3312 is electrically connected to the induction ring. After detecting the broken wire, the motor 3312 is quickly driven, and its output shaft rotates to drive the first toothed piece 3313 to rotate. At this time, the toothed ring 3314 rotates, and the internal teeth are engaged with the second toothed piece 3315, so as to drive the swing arm 3316 to swing, so as to realize the quick clamping of the central yarn by multiple groups of wire clamping rollers 33161. It should be noted that the motor 3312 can also be driven independently, which can drive multiple groups of swing arms 3316 to swing synchronously, so that the wire clamping rollers 33161 here act as elements for shaking the yarn, accelerating the dust on the surface of the yarn, and can also provide a certain degree of tension for the spliced yarn.

[0025] Embodiment 5. Refer to the appendix ​, on the basis of Embodiment 4, in order to achieve the auxiliary accumulation of dust on the surface of the yarn: the toothed support member 3321 is integrally formed by a circular ring plate and a toothed plate. The outer ring surface of the circular ring plate is fixedly connected to the inner ring surface of the limiting ring plate 3311. One end of the motor 3312 is fixedly installed on the outer surface of the circular ring plate, and the motor 3312 and the limiting ring plate 3311 are coaxially distributed; the dust accumulation member includes a retention folding plate 3323. Both ends of the retention folding plate 3323 are respectively fixedly connected with a first fixing ring 33231 and a second fixing ring 33232. The outer ring surface of the first fixing ring 33231 is fixedly connected with a connecting wing plate 33233. There are two groups of connecting wing plates 33233 and they are mirror-symmetrically distributed about the central axis of the retention folding plate 3323; an embedding groove is formed on the inner wall of the connecting wing plate 33233, and an embedding block 33234 is movably embedded on the inner surface of the embedding groove. The embedding block 33234 is fixedly installed on the outer surface of the toothed support member 3321; In this embodiment, in the driving state of the jet component, the gas source is ejected through two groups of oppositely distributed jet pipes 3341, and the high-speed air flow converges towards the center. At this time, the central yarn is affected by the high-speed air flow to avoid the situation of inward curling. And in the normal splicing working state of the yarn, the floating dust on the surface of the yarn is blown by the air flow. With the array arrangement of the through grooves on the surface of the narrowing cover 3331 connected to the output end of the conical cylinder 333, it can be ensured that the floating dust converges here, and part of the floating dust enters the inner cavity of the conical cylinder 333 and is stored on the surface of the dust accumulation member; and it should be noted that the toothed support member 3321 here is integrally formed by a circular ring plate and a toothed plate, which can not only provide structural support for the installation of the docking conical cover 3322, but also limit the installation of the dust accumulation member; and it is worth noting that when the dust accumulation member is assembled, the first fixing ring 33231 and the second fixing ring 33232, as the connecting members of the retention folding plate 3323, snap the two connecting wing plates 33233 into the inner side of the first connecting ring 331. At this time, the embedding groove and the embedding block 33234 are adaptively clamped, so as to realize the rapid positioning of the dust accumulation member and facilitate disassembly and cleaning.

[0026] Embodiment 6, referring to the attached ​ , on the basis of Embodiment 5, the present invention also provides a method for using a double-twisting machine yarn breakage detection device and an automatic wiring mechanism, including the following steps: Step 1. When the double-twisting machine is working normally, the yarn bypasses the surface of the tension sensing assembly. The tension sensing assembly is affected by the tension of the yarn. When the yarn breaks, the tension disappears, and multiple tension members release the extrusion restriction on the extrusion member. At this time, the change in pressure is sensed through the sensing ring, so as to judge the breakage situation of the double-twisting machine yarn and make a quick response to the horizontal shuttle guiding mechanism 3, and the equipment stops running; Step 2: When the doubling twister is working normally, the jet component works continuously to provide high-speed airflow to the yarn, prevent the yarn from curling, and blow the dust on the surface of the continuously spliced yarn. In cooperation with the mutual cooperation of the dust accumulation part and the through groove, the dust enters the collection cavity for collection; Step 3: When the yarn breakage detection device of the doubling twister detects a yarn break and sends a yarn break signal, the yarn break clamping component responds quickly, drives the swing arm 3316 to swing through the driving motor 3312, and realizes the rapid clamping of the yarn break to prevent the yarn break from being recovered under the rotational inertia; Step 4: After the yarn break is clamped, the operator can start the horizontal shuttle guiding mechanism 3 for wiring operation. At the same time, the jet component continues to work to provide a certain degree of tension for the spliced yarn and accelerate the dust shedding on the yarn surface. After the wiring is completed, the dust accumulation part can be disassembled for cleaning to ensure the clean and efficient operation of the equipment.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A broken yarn detection device for a doubling twisting machine, comprising a doubling twisting machine frame (1) and a yarn guiding mechanism (2). A yarn unwinding bobbin (11) and a twisting bobbin (12) are arranged on the doubling twisting machine frame (1). A support partition plate (13) is arranged between the yarn unwinding bobbin (11) and the twisting bobbin (12). It is characterized in that: The yarn guiding mechanism (2) includes a rotating rod (21), the rotating rod (21) is rotatably installed inside the double-twisting machine frame (1), a limiting component and a tension sensing component are arranged outside the rotating rod (21), the limiting component includes a limiting cylinder (22), a guiding wheel (221) and an extrusion piece, the guiding wheel (221) is fixedly connected with the limiting cylinder (22), an induction ring is arranged on the outer side surface of the guiding wheel (221), the tension sensing component includes an inner wheel plate (23) and a tensioning piece, and the limiting cylinder (22) and the inner wheel plate (23) are fixedly installed outside the rotating rod (21).

2. The doubling twisting machine broken wire detection device according to claim 1, characterized in that: A limiting groove (230) is formed in the central outer peripheral surface of the inner wheel plate (23), movable grooves (2300) are formed through both sides of the limiting groove (230), the tensioning piece is arranged inside the limiting groove (230), the tensioning piece includes a yarn contact roller (231) and a movable block (2311), the movable block (2311) is slidably installed inside the movable groove (2300), and an elastic abutting piece is fixedly connected to the lower end of the movable block (2311).

3. The double-twisting machine thread breakage detection device according to claim 2, characterized in that: The elastic abutting piece includes a fixed sleeve (232) and a movable abutting rod (2322), the fixed sleeve (232) is fixedly installed on the inner wall of the inner wheel plate (23), a spring wire (2321) is fixedly installed on the bottom surface of the inner cavity of the fixed sleeve (232), the upper end of the spring wire (2321) is fixedly connected to the bottom surface of the movable abutting rod (2322), and the outer surface of the end of the movable abutting rod (2322) away from the spring wire (2321) is fixedly connected to the lower surface of the movable block (2311).

4. The double twisting machine thread breakage detection device according to claim 3, characterized in that: The extrusion piece includes an induction collar (233) and a pressure block (2331), the induction collar (233) is in an annular block structure, the induction collar (233) is fixedly installed on the outer surface of the inner wheel plate (23), the pressure block (2331) is fixedly installed on the outer ring surface of the induction collar (233), a plurality of groups of the pressure blocks (2331) are arranged in a circular array about the central axis of the inner wheel plate (23), and the upper surface of the pressure block (2331) is in movable contact with the lower surface of the movable block (2311) and corresponds one by one.

5. An automatic wire connection mechanism, applicable to the broken wire detection device of a doubling twisting machine according to claim 4, characterized in that: The automatic wire connection mechanism includes a horizontal shuttle guiding mechanism (3). The horizontal shuttle guiding mechanism (3) includes a horizontal cross bar (31), a splicer (32) and a wire break limiting member (33). The wire break limiting member (33) is composed of a first connecting ring (331), a second connecting ring (332) and a conical cylinder (333). The first connecting ring (331), the second connecting ring (332) and the conical cylinder (333) are fixedly connected by bolts. A wire break clamping assembly is arranged on the inner side of the first connecting ring (331). A toothed support member (3321), a docking conical cover (3322) and a dust accumulation member are arranged on the inner side of the second connecting ring (332). The dust accumulation member is distributed between the outer side of the docking conical cover (3322) and the inner side of the conical cylinder (333). An air jet assembly is arranged on the second connecting ring (332). The air jet assembly includes an air storage cover (334). The air storage cover (334) is sleeved and installed on the outer surface of the second connecting ring (332). The input end of the air storage cover (334) is fixedly connected with a micro air pump. The output end of the air storage cover (334) is hermetically connected with an air jet pipe (3341) penetrating into the inner side of the toothed support member (3321).

6. The automatic wiring mechanism according to claim 5, wherein: The wire break clamping assembly includes a limiting ring plate (3311). The limiting ring plate (3311) is fixedly installed on the inner circumferential surface of the first connecting ring (331). A motor (3312) is fixedly installed on the outer surface of one side of the limiting ring plate (3311). A first toothed piece (3313) is fixedly connected to the output shaft of the motor (3312). A toothed ring (3314) meshes and rotates on the outer surface of the first toothed piece (3313). A rotating ring is fixedly connected to one side surface of the toothed ring (3314). The outer surface of the rotating ring is rotationally connected with the inner wall of the limiting ring plate (3311). A second toothed piece (3315) meshes and rotates inside the toothed ring (3314). The second toothed piece (3315) is rotatably installed on the outer surface of the limiting ring plate (3311). A swing arm (3316) is fixedly connected to the second toothed piece (3315). The other end of the swing arm (3316) is rotationally connected with a wire clamping roller (33161).

7. The automatic wiring mechanism according to claim 6, wherein: The toothed support member (3321) is integrally formed by a circular ring piece and toothed pieces. The outer circumferential surface of the circular ring piece is fixedly connected with the inner circumferential surface of the limiting ring plate (3311). One end of the motor (3312) is fixedly installed on the outer surface of the circular ring piece. The motor (3312) and the limiting ring plate (3311) are coaxially distributed.

8. An automatic wiring mechanism according to claim 5, characterized in that: The dust accumulation member includes a retention folding plate (3323). The two ends of the retention folding plate (3323) are respectively fixedly connected with a first fixing ring (33231) and a second fixing ring (33232). A connecting wing plate (33233) is fixedly connected to the outer circumferential surface of the first fixing ring (33231). There are two groups of the connecting wing plates (33233) and they are mirror-symmetrically distributed about the central axis of the retention folding plate (3323).

9. An automatic wiring mechanism according to claim 8, characterized in that: An embedding groove is formed on the inner wall of the connecting wing plate (33233), and an embedding block (33234) is movably embedded on the inner surface of the embedding groove. The embedding block (33234) is fixedly installed on the outer surface of the toothed support member (3321).

10. An automatic wiring mechanism according to claim 5, characterized in that: A narrowing cover (3331) is fixedly installed on the inner side surface of the conical cylinder (333). One end of the narrowing cover (3331) is adaptively docked with the output end of the docking conical cover (3322), and through grooves are evenly formed on the inner wall of the narrowing cover (3331).

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