Emergency automatic processing device and method for broken yarns in spinning production

Abstract

The invention relates to a broken yarn emergency automatic treatment device and method in spinning production. The broken yarn emergency automatic treatment device in the spinning production process comprises a broken yarn detection system, a control system, an automatic yarn breaking device and a waste yarn collecting device. The broken yarn detection system is used for detecting whether broken yarns occur in the spinning production process and detecting spinning positions and procedures where the broken yarns occur. The control system is connected with the broken wire detection system and used for receiving a broken wire signal sent by the broken wire detection system. The control system is connected with the automatic yarn breaking device and used for sending a yarn breaking signal to the automatic yarn breaking device, so that the automatic yarn breaking device cuts off running tows in the spinning position where yarn breaking occurs at the upstream position of the procedure where yarn breaking occurs. The control system is connected with the waste silk collecting device and used for sending a signal to the waste silk collecting device so that the waste silk collecting device can collect the cut waste silk. According to the method, the risk of roller winding and even production stagnation caused by abnormal wire breakage can be well avoided.

Description

Technical Field

[0001] The invention relates to the technical field of polyacrylonitrile-based carbon fibers, and in particular to an emergency automatic processing device and method for broken fibers in spinning production. Background Art

[0002] In the production process of polyacrylonitrile-based carbon fiber precursor, broken wires are inevitable. Broken wires will interfere with other normal spinning positions, and broken wire heads may be drawn into the transmission rollers, causing serious roller entanglement or even causing the transmission to stop, thereby stopping the production line. For spinning production lines with high production speeds and many spinning positions, how to quickly respond to and handle broken wires is a difficult problem.

[0003] At present, in the actual production process, special staff are required to monitor and there are generally two ways to deal with broken wires: one is to cut the wire bundle and perform artificial long-term wire drawing when the wire bundle in the previous process of the broken wire runs slowly; the other is to directly stop the production of the spinning position and shut down the metering pump. However, these two treatment methods have at least the following problems:

[0004] (1) Due to the long response time of manual monitoring, broken silk heads are easily involved in normal production spinning positions or winding rollers, and risks cannot be effectively avoided.

[0005] (2) When manually cutting the yarn bundle, it is necessary to check the spinning position of the broken yarn clearly. It is easy to cut the wrong yarn bundle, resulting in the inability to produce the normal spinning position and the expansion of the problem.

[0006] (3) Artificial long-term wire drawing is prone to fatigue and the wire bundle may be entangled.

[0007] (4) After stopping production, the spinning position needs to be opened and the relevant spinning set needs to be replaced, which brings more workload. Summary of the invention

[0008] In view of this, the present invention provides an automatic emergency processing device and method for broken yarns in spinning production, the main purpose of which is to automatically perform emergency processing when broken yarns occur in spinning production to effectively avoid risks.

[0009] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0010] On the one hand, an embodiment of the present invention provides an automatic emergency processing device for broken wires in spinning production, wherein the automatic emergency processing device for broken wires in spinning production comprises:

[0011] Broken wire detection system: The broken wire detection system is used to detect whether broken wire occurs during the spinning production process, as well as the spinning position and process where the broken wire occurs;

[0012] A control system, the control system being connected to the broken wire detection system and being used for receiving a broken wire signal sent by the broken wire detection system;

[0013] An automatic wire-breaking device, wherein the control system is connected to the automatic wire-breaking device and is used to send a wire-breaking signal to the automatic wire-breaking device so that the automatic wire-breaking device cuts off the running wire bundle in the spinning position where the wire breaking occurs at an upstream of the process where the wire breaking occurs;

[0014] The waste silk collecting device is connected to the control system and is used to send a signal to the waste silk collecting device so that the waste silk collecting device collects the cut waste silk.

[0015] Preferably, the spinning production line is a production line for polyacrylonitrile-based carbon fiber precursor.

[0016] Preferably, the automatic emergency processing device for broken silk in the spinning production process further includes:

[0017] Broken wire signal display system: the control system is connected to the broken wire signal display system and is used to send a signal to the broken wire signal display system so that the broken wire signal display system displays the spinning position and process where the broken wire occurs and sends an alarm signal to remind the supervisor.

[0018] Preferably, the broken wire detection system comprises:

[0019] An optical signal broken wire detection system, wherein the optical signal broken wire detection system is used to detect whether the running wire bundles of multiple spinning positions are broken in the first process group;

[0020] Preferably, the first process group includes a plurality of processes; further preferably, the first process group includes: a water washing process, a hot water drawing process, and an oiling process;

[0021] Preferably, the optical signal broken wire detection system includes multiple optical signal broken wire detection devices; wherein, the optical signal broken wire detection devices are consistent with the number of processes in the first process group and correspond one to one, so as to detect whether the yarn bundles at multiple spinning positions are broken in the corresponding processes.

[0022] Preferably, the optical signal broken wire detection device comprises: an optical signal transmitter and a reflective plate; wherein the optical signal transmitter is located on one side of the running wire bundle, and the reflective plate is located on the other side of the running wire bundle; wherein the optical signal transmitter and the reflective plate are arranged relative to each other; preferably, when the wire bundle is running normally, the light emitted by the optical signal transmitter passes through the bottom of the running wire bundle, hits the reflective plate, and is reflected back to the optical signal transmitter through the reflective plate; when the wire breaks, the broken wire will block the light under the action of gravity; preferably, the optical signal reflector will judge whether the wire is broken and the spinning position of the broken wire according to the length of time it receives the reflected light.

[0023] Preferably, the broken wire detection system comprises:

[0024] Wire collecting machines, the number of which is consistent with the number of spinning positions and corresponds one to one; the wire collecting machines are used to detect whether the running wire bundles at the corresponding spinning positions are broken in the second process group;

[0025] Preferably, the second process group includes a drying and densification process and a steam drawing process.

[0026] Preferably, the automatic wire-breaking device is used to cut off the running wire bundle in the spinning position where the wire breakage occurs at a position before the process where the wire breakage occurs starts and after the process before the process where the wire breakage occurs ends; preferably, an automatic wire-breaking device is installed at a position between each two adjacent processes in the coagulation molding process, the water washing process, the hot water drawing process, the oiling process, the drying and densification process, and the steam drawing process.

[0027] Preferably, the automatic wire-breaking device comprises a first automatic wire-breaking device; wherein the first automatic wire-breaking device comprises:

[0028] A support, the support being located above the running tow;

[0029] A laser emitter, wherein the laser emitter is mounted on the bracket and can move horizontally relative to the bracket;

[0030] A broken wire driving mechanism, the broken wire driving mechanism is drivingly connected to the laser emitter and is used to drive the laser emitter to move horizontally on the bracket;

[0031] The control system is connected with the broken wire driving mechanism and the laser emitter, and is used to control the broken wire driving mechanism to drive the laser emitter to move horizontally to a set position, and control the laser emitter to emit laser to the running wire bundle at the spinning position where the broken wire occurs, so as to cut it off;

[0032] Preferably, the bracket includes a horizontally arranged slide bar; the housing of the laser transmitter is sleeved on the slide bar and can move horizontally on the slide bar;

[0033] Preferably, the broken wire driving mechanism comprises: a motor and a threaded rod; wherein the motor drives the threaded rod to rotate; one end of the laser emitter is slidably connected to the threaded rod, so that the laser emitter can move horizontally relative to the bracket under the rotation of the threaded rod;

[0034] Preferably, a first automatic wire breaking device is installed between each two adjacent processes in the solidification and molding process, the water washing process, the hot water drawing process, and the oiling process;

[0035] Preferably, the bracket is located above the transmission roller of the running tow; further preferably, one end of the bracket is connected to the fixed bracket of the transmission roller;

[0036] Preferably, a laser wire breaking signal detector is also installed on the fixed bracket of the driving roller, which is used to detect whether the first automatic wire breaking device effectively breaks the wire; if so, a signal is sent to the control system, and the control system controls the laser emitter to stop emitting laser after receiving the signal.

[0037] Preferably, the automatic wire-breaking device comprises a second automatic wire-breaking device; wherein the second automatic wire-breaking device comprises:

[0038] A cylinder, wherein the cylinder is connected to a first compressed air delivery pipeline; wherein a first solenoid valve is provided on the first compressed air delivery pipeline;

[0039] A wire cutting knife, the cylinder is drivingly connected to the wire cutting knife;

[0040] Wherein, the first solenoid valve is connected to the control system, and is used to control the first compressed air delivery pipeline to deliver compressed air to the cylinder according to the broken wire signal sent by the control system, so that the cylinder drives the broken wire knife to run along the first direction to cut off the wire bundle running on the spinning position of the broken wire;

[0041] Preferably, the first direction is at a set angle to the direction in which the tow runs, and the set angle is greater than 120° and less than or equal to 150°;

[0042] Preferably, the width of the wire-breaking knife is related to the spacing between the spinning positions; further preferably, the blade width of the wire-breaking knife = the spacing between the spinning positions - 10 mm;

[0043] Preferably, a second automatic wire-breaking device is installed between any two adjacent processes among the oiling process, the drying and densification process, and the steam drawing process; preferably, each spinning position is equipped with a second automatic wire-breaking device.

[0044] Preferably, the waste silk collecting device comprises a first waste silk collecting device; wherein the first waste silk collecting device comprises:

[0045] Wire collection drive mechanism;

[0046] A threaded rod, the threaded rod being drivingly connected to the wire collection drive mechanism;

[0047] A wire suction tube, wherein the wire suction tube is connected to the threaded rod via a sliding structure so that the wire suction tube moves relative to the threaded rod; a wire bundle suction port is provided at one end of the wire suction tube;

[0048] Wherein, the wire suction tube is connected to a second compressed air delivery pipeline; wherein, a second solenoid valve is provided on the second compressed air delivery pipeline;

[0049] The wire collection drive mechanism and the second solenoid valve are both connected to the control system, and are used to control the wire suction pipe to run to the vicinity of the cut wire bundle according to the wire breaking signal sent by the control system, and open the second compressed air pipeline through the second solenoid valve, so that the suction pipe sucks the wire bundle under the action of compressed air;

[0050] Preferably, the wire collecting drive mechanism uses a motor;

[0051] Preferably, when the automatic wire-breaking device comprises a second automatic wire-breaking device, a first waste wire collecting device is installed near the second automatic wire-breaking device.

[0052] Preferably, the waste wire collecting device includes a second waste wire collecting device; wherein, the second waste wire collecting device includes a rotating drum structure; preferably, the drum surface of the rotating drum structure is made of rubber material with grooves; preferably, the rotating drum structure is driven to rotate by a motor; preferably, when the automatic wire breaking device includes a first automatic wire breaking device, a second waste wire collecting device is installed near the first automatic wire breaking device.

[0053] On the other hand, an embodiment of the present invention provides a method for emergency automatic processing of broken wires in spinning production, characterized in that the emergency automatic processing device for broken wires in spinning production described in any one of the above items is used to perform emergency automatic processing of broken wires in spinning production;

[0054] Preferably, the method for automatically handling broken silk in spinning production comprises the following steps:

[0055] Broken wire detection step: using the broken wire detection system to detect whether broken wires occur during the spinning production process, as well as the spinning position and process where broken wires occur, and feeding back broken wire signals to the control system;

[0056] Automatic cutting step: the control system sends a wire breaking signal to the automatic wire breaking device, so that the automatic wire breaking device cuts off the running wire bundle in the spinning position where the wire breaking occurs at the upstream of the process where the wire breaking occurs;

[0057] Waste silk collecting step: the control system sends a signal to the waste silk collecting device, so that the waste silk collecting device collects the cut waste silk;

[0058] Preferably, the method for automatically handling broken silk in spinning production also includes:

[0059] Broken wire signal display step: the control system sends a broken wire signal to the broken wire signal display system, so that the broken wire signal display system displays the spinning position and process where the broken wire occurs, and sends out an alarm signal to remind the supervisor;

[0060] Preferably, for the coagulation molding process, the water washing process, the hot water drawing process, and the oiling process, an optical signal broken wire detection system is used to detect whether broken wires occur during the spinning production process, as well as the spinning position and process where broken wires occur, and the broken wire signal is fed back to the control system; the control system sends a broken wire signal to the first automatic wire breaking device, so that the first automatic wire breaking device cuts off the running wire bundle in the spinning position where the broken wire occurs at the upstream of the process where the broken wire occurs; the control system sends a signal to the second waste wire collecting device, so that the waste wire collecting device operates to collect the cut waste wires;

[0061] Preferably, for the drying and densification process and the steam drawing process, a wire collecting machine is used to detect whether wire breakage occurs during the spinning production process, as well as the spinning position and process where the wire breakage occurs, and the wire breakage signal is fed back to the control system; the control system sends a wire breakage signal to the second automatic wire breaking device and the first waste wire collecting device, so that the wire suction tube of the first waste wire collecting device will suck the running wire bundle in the spinning position where the wire breakage occurs at the upstream position of the wire breakage process, and control the second automatic wire breaking device to cut it off, and then the first waste wire collecting device collects the cut waste wire.

[0062] Compared with the prior art, the device and method for emergency automatic processing of broken wires in spinning production of the present invention have at least the following beneficial effects:

[0063] On the one hand, an embodiment of the present invention provides an automatic emergency treatment device for broken wires in spinning production, by designing a broken wire detection system, a control system, an automatic broken wire device, and a waste wire collection device, wherein the broken wire detection system is used to detect whether broken wires occur during the spinning production process, as well as the spinning position and process where broken wires occur. The control system is connected to the broken wire detection system, and is used to receive the broken wire signal sent by the broken wire detection system. The control system is connected to the automatic broken wire device, and is used to send a broken wire signal to the automatic broken wire device, so that the automatic broken wire device cuts off the running wire bundle in the spinning position where the broken wire occurs at the upstream of the process where the broken wire occurs. The control system is connected to the waste wire collection device, and is used to send a signal to the waste wire collection device, so that the waste wire collection device collects the cut waste wire. Here, when broken wires occur in spinning production, the above-designed automatic emergency treatment device for broken wires can handle them by itself in an emergency, thereby improving the stability of production and effectively avoiding production accidents caused by broken wires.

[0064] Furthermore, the automatic emergency processing device for broken wires in the spinning production process provided by the embodiment of the present invention can not only remind the supervisory personnel by setting up a broken wire signal display system, but also can intuitively display the spinning position and process where the broken wires occur, thereby facilitating the supervisory personnel to monitor the automatic emergency processing device for broken wires, and after the automatic emergency processing device for broken wires has processed the broken wires, the yarn bundles at the broken spinning position can be put back on the shelves.

[0065] Furthermore, the automatic emergency handling device for broken wires in the spinning production process provided by the embodiment of the present invention adopts an optical signal broken wire detection device in the process section where the speed of the yarn bundle is relatively slow (such as the water washing process, the hot water drawing process, and the oiling process), so as to realize the broken wire detection of multiple spinning positions in each process. In the process section where the yarn bundle runs at a relatively fast speed (such as the drying and densification process and the steam drawing process), a wire collecting machine is used to detect whether the running yarn bundle corresponding to the spinning position is broken in the second process group. Here, the automatic emergency handling device for broken wires in the spinning production process of the present invention is configured with different broken wire detection systems according to the speed of the yarn bundle to improve the detection accuracy of broken wires.

[0066] Furthermore, the embodiment of the present invention provides an automatic emergency treatment device for broken wires in the spinning production process, so that the automatic broken wire device includes a first automatic broken wire device and a second automatic broken wire device; wherein the first automatic broken wire device is mainly for the process section where the tow runs slowly, and uses a laser to cut the running tow of the broken wire spinning position in the running tow of the broken wire process; the second automatic broken wire device is mainly for the process section where the tow runs quickly, and uses a compressed air cylinder to drive the blade to cut the running tow of the broken wire spinning position in the running tow of the broken wire process. It should be noted here that: the tow in the process section with slow running speed is not fully stretched, the diameter of the tow is large, and it is difficult to cut it with the cylinder-driven blade; and because it is not effectively stretched, the width of the tow varies greatly, the bundling is poor, and the mechanical blade is prone to the situation that the edge wire is not cut, so it is suitable for laser wire breaking. In the process section with fast running speed, the tow is fully dried, and there is a safety hazard of fire when using laser to break the wire, so it is suitable for mechanical blade to break the wire.

[0067] Furthermore, the embodiment of the present invention provides an automatic emergency treatment device for broken wires in the spinning production process. In the process section where the tow runs faster, compressed air is used to drive the wire suction pipe to collect the broken wires. Here, the suction pipe can also absorb the tow to be cut so that it can be cut in time (due to the fast running speed of the tow, timely cutting makes the length of the cut waste wire short, thereby avoiding waste). In the process section where the tow runs slower, a rotating drum structure is used to collect the broken wires. Due to the slow running speed of the tow, after the broken wires are cut, only the wire head needs to be manually rolled into the drum for broken wire collection.

[0068] On the other hand, an embodiment of the present invention provides a method for automatic emergency handling of broken wires in a spinning production process, which mainly adopts any of the above-mentioned automatic emergency handling devices for broken wires in spinning production to perform automatic emergency handling of broken wires in spinning production. Therefore, it has any of the beneficial effects described above and will not be repeated here.

[0069] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a schematic structural diagram of an automatic emergency treatment device for broken yarns in spinning production provided by an embodiment of the present invention;

[0071] Figure 2 is a schematic diagram of a local production line in a spinning production provided by an embodiment of the present invention;

[0072] Figure 3 is a schematic structural diagram of a first automatic wire breaking device provided by an embodiment of the present invention;

[0073] Figure 4 is a structural schematic diagram of a second automatic wire cutting device provided by an embodiment of the present invention;

[0074] Figure 5 is a schematic structural diagram of a first waste silk collecting device provided by an embodiment of the present invention;

[0075] Figure 6 It is a schematic diagram of the structure of the optical signal broken wire detection device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0076] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0077] Example 1

[0078] This embodiment provides an automatic emergency treatment device for broken silk in spinning production, wherein, Figure 1As shown, the automatic emergency processing device for broken wires in the spinning production process includes: a broken wire detection system 1, a control system 2, an automatic broken wire device 3, and a waste wire collection device 4. Among them, the broken wire detection system 1 is used to detect whether the broken wire occurs in the spinning production process, as well as the spinning position and process where the broken wire occurs. The control system 2 is connected to the broken wire detection system 1, and is used to receive the broken wire signal sent by the broken wire detection system. The control system 2 is connected to the automatic broken wire device 3, and is used to send a broken wire signal to the automatic broken wire device 3, so that the automatic broken wire device 3 will cut off the running wire bundle in the spinning position where the broken wire occurs at the upstream of the process where the broken wire occurs. The control system 2 is connected to the waste wire collection device 4, and is used to send a signal to the waste wire collection device 4, so that the waste wire collection device 4 collects the cut waste wire.

[0079] Here, the automatic emergency processing device for broken wires in spinning production provided in this embodiment, by designing a broken wire detection system 1, a control system 2, an automatic broken wire device 3, and a waste wire collection device 4, can automatically handle emergencies when broken wires occur, thereby improving production stability and effectively avoiding production accidents caused by broken wires.

[0080] Preferably, the spinning production line targeted in this embodiment and the following embodiments is mainly a production line for polyacrylonitrile-based carbon fiber precursor.

[0081] Example 2

[0082] Preferably, this embodiment provides an automatic emergency treatment device for broken silk in a spinning production process, such as Figure 1 As shown, the automatic emergency processing device for broken silk in the spinning production process of this embodiment also includes a broken silk signal display system 5. Among them, the control system 2 is connected to the broken silk signal display system 5, and is used to send a signal to the broken silk signal display system 5, so that the broken silk signal display system 5 displays the spinning position and process where the broken silk occurs, and sends an alarm signal to remind the supervisor.

[0083] The automatic emergency processing device for broken silk in the spinning production process provided in the present embodiment can not only remind the supervisory personnel by setting up the broken silk signal display system 5, but also can intuitively display the spinning position and process where the broken silk occurs, so as to facilitate the supervisory personnel to monitor the automatic emergency processing device for broken silk, and put the silk bundles at the broken spinning position back on the shelves after the automatic emergency processing device for broken silk has processed them.

[0084] Preferably, the broken wire signal display system 5 includes a display screen, and a corresponding display screen is provided in each process. When a broken wire occurs, the spinning position where the broken wire occurs is displayed on the display screen of the process where the broken wire occurs. Preferably, the broken wire signal display system 5 also includes a signal light or a buzzer, and a signal light is provided in each process. When a broken wire occurs, the signal light of the process where the broken wire occurs flashes or the buzzer sounds, thereby sending an alarm signal to remind the supervisor.

[0085] Example 3

[0086] Preferably, this embodiment provides an automatic emergency treatment device for broken silk in a spinning production process, such as Figure 1 and Figure 2 As shown, in this embodiment, the broken wire detection system 1 is designed as follows:

[0087] The broken wire detection system includes an optical signal broken wire detection system, which is used to detect whether the running wire bundles of multiple spinning positions are broken in the first process group. The first process group includes multiple processes; preferably, the first process group includes three processes, namely: a water washing process, a hot water drawing process, and an oiling process.

[0088] The optical signal broken wire detection system includes a plurality of optical signal broken wire detection devices 11; the optical signal broken wire detection devices 11 are consistent with the number of processes in the first process group and correspond one to one to detect whether the yarn bundles at a plurality of spinning positions are broken in the corresponding processes.

[0089] For example, the first process group has three processes, namely, a water washing process, a hot water drawing process, and an oiling process; accordingly, the optical signal broken wire detection system includes three optical signal broken wire detection devices 11, so as to respectively detect whether the running yarn bundles of multiple spinning positions are broken in the corresponding processes.

[0090] like Figure 6 As shown, the optical signal broken wire detection device includes: an optical signal transmitter 111 and a reflecting plate 112; wherein the optical signal transmitter 111 is located on one side of the running wire bundle 114, and the reflecting plate 112 is located on the other side of the running wire bundle 114; wherein the optical signal transmitter 111 and the reflecting plate 112 are arranged relative to each other; preferably, when the wire bundle runs normally, the light 113 emitted by the optical signal transmitter 111 passes through the bottom of the running wire bundle 114, hits the reflecting plate 112, and is reflected back to the optical signal transmitter 111 through the reflecting plate 112; when the wire breaks, the broken wire will block the light under the action of gravity; preferably, the optical signal reflector 111 will judge whether the wire is broken and the spinning position of the broken wire according to the length of time of receiving the reflected light.

[0091] It should be noted here that in the oiling process and the previous processes, the optical signal broken wire detection device is set to more accurately determine the broken wire position and avoid roller entanglement (the wire collecting machine can also send out a signal, but it cannot determine the process segment where the wire breakage occurs in the oiling process and the previous processes).

[0092] Example 4

[0093] Preferably, this embodiment provides an automatic emergency treatment device for broken silk in a spinning production process, such as Figure 1 and Figure 2As shown, this embodiment also designs the broken wire detection system 1 as follows:

[0094] The broken wire detection system includes a wire collector 12, wherein the number of the wire collectors is consistent with the number of spinning positions and corresponds to each other, and the wire collectors are used to detect whether the running wire bundles corresponding to the spinning positions are broken in the second process group. The second process group includes a drying and densification process and a steam drawing process.

[0095] It should be noted here that each wire collecting machine has a tension wheel (the yarn bundle will pass around the tension wheel, the tension wheel will be connected to the electrical signal, and the running tension of the yarn bundle will be fed back). When the wire breaks, the tension wheel detects a sudden drop in tension and sends a signal, which is collected and processed by the control system.

[0096] After the oiling process, a wire collecting machine is used to detect broken wires. On the one hand, the wire collecting machine is located at the very end of the yarn bundle, and a signal will be sent out if the wire is broken anywhere after the oiling process; on the other hand, after the wire collecting machine detects broken wires, it can record the winding length when the wire is broken at that spinning position, which is convenient for production statistics.

[0097] Here, the embodiment of the present invention utilizes a wire collecting machine to detect whether wire breakage occurs in the drying and densification process and the steam drawing process.

[0098] Example 5

[0099] Preferably, this embodiment provides an automatic emergency treatment device for broken wires in a spinning production process. This embodiment further designs the automatic broken wire device as follows:

[0100] The automatic wire-breaking device is used to cut off the running wire bundle in the spinning position where the wire breaks before the process where the wire breaks start and after the process before the process where the wire breaks end (it can be understood as: cutting at the position before the process where the wire breaks start, or cutting at the position after the process before the process where the wire breaks end). Preferably, the automatic wire-breaking device is installed at the position between each two adjacent processes in the coagulation process, the water washing process, the hot water drawing process, the oiling process, the drying and densification process, and the steam drawing process. For example, if the wire breaks in the water washing process, it is only necessary to cut off the running wire bundle in the spinning position where the wire breaks after the coagulation process ends and before the water washing process starts.

[0101] Example 6

[0102] Preferably, this embodiment provides an automatic emergency treatment device for broken wires in a spinning production process. This embodiment further designs the automatic broken wire device as follows:

[0103] like Figure 1 , Figure 2 and Figure 3As shown, the automatic wire-breaking device 3 includes a first automatic wire-breaking device 31; wherein the first automatic wire-breaking device 31 includes: a bracket 311, a laser emitter 312, and a wire-breaking driving mechanism. wherein the bracket 311 is located above the running wire bundle. The laser emitter 312 is mounted on the bracket 311, and the laser emitter 312 can move horizontally relative to the bracket 311; the wire-breaking driving mechanism is connected to the laser emitter 312 for driving the laser emitter 312 to move horizontally on the bracket 311. wherein the control system is connected to the wire-breaking driving mechanism and the laser emitter 312, for sending a wire-breaking signal to the wire-breaking driving mechanism and the laser emitter 312, so that the wire-breaking driving mechanism drives the laser emitter 312 to move horizontally to a set position (the set position here refers to; the position corresponding to the wire bundle running at the wire-breaking spinning position), so that the laser emitter 312 emits a laser to the running wire bundle at the spinning position where the wire is broken, and cuts it off.

[0104] Preferably, the bracket 311 includes a horizontally arranged sliding rod 3111 ; the housing of the laser emitter 312 is sleeved on the sliding rod 31111 and can move horizontally on the sliding rod 31111 .

[0105] Preferably, the broken wire driving mechanism includes: a motor 313 and a threaded rod 314; wherein the motor 313 drives the threaded rod 314 to rotate; one end of the laser emitter 312 is slidably connected to the threaded rod 314, so that when the threaded rod 314 rotates, the laser emitter 312 can move horizontally relative to the bracket 311.

[0106] Preferably, the bracket 311 is located above the transmission roller 7 of the running tow; further preferably, one end of the bracket 311 is connected to the fixed bracket 71 of the transmission roller 7. Preferably, a laser wire breaking signal detector 315 is also installed on the fixed bracket 71 of the transmission roller 7 to detect whether the first automatic wire breaking device 31 is effectively broken; if so, a signal is sent to the control system to control the laser emitter to stop emitting laser.

[0107] It should be noted that the laser wire breakage signal detector 315 sends out an electromagnetic signal, which passes through the running wire bundle and hits the reflector to detect the strength of the electromagnetic signal. If the wire bundle is effectively cut off, the signal will be strengthened accordingly.

[0108] Preferably, a first automatic wire breaking device 31 is installed between each two adjacent steps of the solidification and molding step, the water washing step, the hot water drawing step, and the oiling step.

[0109] It should be noted that the first automatic wire cutting device is a laser automatic wire cutting device, which is mainly used in a process section where the wire bundle runs slowly, and uses a laser to cut the running wire bundle.

[0110] Example 7

[0111] Preferably, this embodiment provides an automatic emergency treatment device for broken wires in a spinning production process. This embodiment further designs the automatic broken wire device as follows:

[0112] like Figure 2 and Figure 4 As shown, the automatic wire-breaking device of this embodiment includes a second automatic wire-breaking device 32; wherein, the second automatic wire-breaking device includes a cylinder 322 and a wire-breaking knife 321. wherein, the cylinder 322 is connected to the first compressed air delivery pipeline; wherein, a first solenoid valve is arranged on the first compressed air delivery pipeline. The first solenoid valve is connected to the control system, and is used to control the first compressed air delivery pipeline to deliver compressed air to the cylinder 322 according to the wire-breaking signal sent by the control system, so that the cylinder 322 drives the wire-breaking knife 321 to run along the first direction, and cuts off the wire bundle running on the spinning position of the broken wire. Preferably, the first direction is 150° with the direction in which the wire bundle runs; preferably, the width of the wire-breaking knife 321 is related to the spacing between the spinning positions. For the second automatic wire-breaking device, when the wire is automatically broken, the pressure of the compressed air is ≥0.6Mpa.

[0113] Among them, a second automatic wire-breaking device is installed between any two adjacent processes in the oiling process, drying and densification, and steam drawing process. Specifically, each spinning position is equipped with a separate cylinder and a wire-breaking knife. When the controller receives a wire-breaking signal, it controls the solenoid valve of the spinning position to open, and compressed air is passed into the cylinder to drive the wire-breaking knife to handle the wire breaking.

[0114] It should be noted that the second automatic wire-breaking device is a pneumatic mechanical automatic wire-breaking device, which is mainly used in process sections where the wire bundle runs at a faster speed.

[0115] Example 8

[0116] Preferably, this embodiment provides an automatic emergency treatment device for broken silk in a spinning production process, and this embodiment further designs the waste silk collection device as follows:

[0117] like Figure 2 and Figure 5As shown, the waste silk collection device of this embodiment includes a first waste silk collection device 41; wherein the first waste silk collection device 41 includes: a wire collection drive mechanism 411, a threaded rod 412, and a wire suction tube 413. wherein the threaded rod 412 is connected to the wire collection drive mechanism 411 by driving; the wire suction tube 412 is connected to the threaded rod 412 by a sliding structure 416, so that the wire suction tube 413 moves relative to the threaded rod 412; and a wire suction port is provided at one end of the wire suction tube 413. The wire suction tube 413 is connected to the second compressed air delivery pipeline 414; wherein the second compressed air delivery pipeline 414 is provided with a second solenoid valve. wherein the wire collection drive mechanism 411 and the second solenoid valve are both connected to the control system, and are used to control the wire suction tube 423 to run to the vicinity of the cut wire bundle according to the wire breaking signal sent by the control system, and open the second compressed air pipeline through the second solenoid valve, so that the suction tube 413 sucks the wire bundle 415 under the action of compressed air. For the first waste silk collection device, the pressure of the compressed air introduced into the suction pipe is ≥0.8Mpa. It should be noted here that there is an air flow channel inside the suction pipe. When the compressed air enters, negative pressure (high flow rate, low pressure) will be formed to suck the silk bundle at the pipe mouth. The higher the pressure of the compressed gas used, the stronger the suction force.

[0118] Preferably, the wire collecting drive mechanism 411 is a motor.

[0119] Preferably, the first waste silk collecting device of the present embodiment is mainly used to collect broken silk in the process section where the silk bundle runs at a faster speed.

[0120] When the automatic wire-breaking device includes a second automatic wire-breaking device, a first waste wire collecting device is installed near the second automatic wire-breaking device (i.e., the first waste wire collecting device is installed between any two adjacent processes in the oiling process, the drying and densification process, and the steam drawing process). It should be noted that the second automatic wire-breaking device is mainly suitable for process sections where the tow runs at a fast speed. Due to the fast running speed of the tow, when the tow is cut, the tow at the broken spinning position can be sucked by the wire suction tube of the first waste wire collecting device.

[0121] Example 9

[0122] Preferably, this embodiment provides an automatic emergency treatment device for broken silk in a spinning production process, and this embodiment further designs the waste silk collection device as follows:

[0123] like Figure 2As shown, the waste silk collection device includes a second waste silk collection device 42; wherein the second waste silk collection device includes a rotating drum structure (wherein the rotating drum structure is driven to rotate by a motor) to wind and collect the broken silk. The drum surface of the rotating drum structure is a rubber material with grooves. Preferably, when collecting waste silk, the running line speed of the rotating drum structure is equivalent to the running speed of the silk bundle, and the running line speed of the rotating drum structure is ≤50m / min.

[0124] Preferably, when the automatic wire-breaking device comprises a first automatic wire-breaking device, a second waste wire collecting device is installed near the first automatic wire-breaking device.

[0125] The second waste silk collection device 42 of this embodiment is mainly used in the process section where the tow runs slowly (the second waste silk collection device is installed between each two adjacent processes in the coagulation and molding process, the water washing process, the hot water drawing process, and the oiling process). Since the tow runs slowly, after cutting off the broken silk, it is only necessary to manually roll the silk head into the drum for broken silk collection.

[0126] Example 10

[0127] Preferably, this embodiment provides an automatic emergency processing device for broken wires in a spinning production process. This embodiment further designs the control system as follows:

[0128] like Figure 2 As shown, the control system includes a first control system and a second control system; wherein the first control system is used to control the automatic emergency wire breaking processing device (e.g., optical signal wire breaking detection device 11, first automatic wire breaking device 31, first waste wire collecting device 41, wire breaking signal display system 5) of the process section (e.g., oiling process, water washing process, hot water drawing process) where the wire bundle runs at a relatively slow speed. The second control system is used to control the automatic emergency wire breaking processing device (e.g., wire collecting machine, second automatic wire breaking device 32, second waste wire collecting device, wire breaking signal display system 5) of the process section (e.g., drying and densification process and steam drawing process) where the wire bundle runs at a relatively fast speed.

[0129] Embodiment 11

[0130] On the other hand, the present embodiment provides a method for automatically handling emergency breakage in spinning production, characterized in that the automatic emergency breakage handling device in spinning production described in any of the above embodiments is used to automatically handle emergency breakage in spinning production.

[0131] Preferably, the method for automatically handling broken yarns in spinning production comprises the following steps:

[0132] Broken wire detection step: using the broken wire detection system to detect whether broken wires occur during the spinning production process, as well as the spinning position and process where broken wires occur, and feeding back broken wire signals to the control system;

[0133] Automatic cutting step: the control system sends a wire breaking signal to the automatic wire breaking device, so that the automatic wire breaking device cuts off the running wire bundle in the spinning position where the wire breaking occurs at the upstream of the process where the wire breaking occurs;

[0134] Waste silk collecting step: the control system sends a signal to the waste silk collecting device, so that the waste silk collecting device collects the cut waste silk;

[0135] Preferably, the method for automatically handling broken yarns in spinning production also includes:

[0136] Broken wire signal display step: the control system sends a broken wire signal to the broken wire signal display system, so that the broken wire signal display system displays the spinning position and process where the broken wire occurs, and sends out an alarm signal to remind the supervisor;

[0137] Preferably, for the coagulation molding process, the water washing process, the hot water drawing process, and the oiling process, an optical signal broken wire detection system is used to detect whether broken wires occur during the spinning production process, as well as the spinning position and process where broken wires occur, and the broken wire signal is fed back to the control system; the control system sends a broken wire signal to the first automatic wire breaking device, so that the first automatic wire breaking device cuts off the running wire bundle in the spinning position where the broken wire occurs at the upstream of the process where the broken wire occurs; the control system sends a signal to the second waste wire collecting device, so that the waste wire collecting device operates to collect the cut waste wires;

[0138] Preferably, for the drying and densification process and the steam drawing process, a wire collecting machine is used to detect whether wire breakage occurs during the spinning production process, as well as the spinning position and process where the wire breakage occurs, and the wire breakage signal is fed back to the control system; the control system sends a wire breakage signal to the second automatic wire breaking device and the first waste wire collecting device, so that the wire suction tube of the first waste wire collecting device will suck the running wire bundle in the spinning position where the wire breakage occurs at the upstream position of the wire breakage process, and control the second automatic wire breaking device to cut it off, and then the first waste wire collecting device collects the cut waste wire.

[0139] In addition, if multiple spinning position abnormalities occur simultaneously in the same process, the yarn bundles adjacent to the automatic yarn breaking device are processed first, until the yarn bundles at all abnormal spinning positions are broken and collected.

[0140] The present invention is further described below by specific experimental examples:

[0141] Experimental Example 1

[0142] The spinning production of polyacrylonitrile-based carbon fiber precursor includes the following steps: spinning step, coagulation molding step, water washing step, hot water drawing step, oiling step, drying and densification, and steam drawing process. There are 30 spinning positions in total.

[0143] Among them, during the spinning production process, broken wires occurred in the steam drawing process section. The wire collecting machine detected the broken wires and fed back to the control system. The control system controlled the display screen in the steam drawing process section to display the broken wire spinning position (15#) and issued an alarm. The inspection personnel can check the abnormal situation of the spinning position. At this time, the second automatic wire breaking device and the first waste wire collection device located before the steam drawing process and after the drying and densification process received a signal to cut off the running wire bundles at the broken wire spinning position before the steam drawing process and collect them. Among them, the wire suction tube in the first waste collection device is pushed to the 15# spinning position by the motor, and the second solenoid valve opens the compressed air, so that the abnormal spinning position tow at this position is sucked by the wire suction tube. Then the first solenoid valve in the second automatic wire breaking device is opened, and the cylinder pushes the wire breaking knife to cut the 15# spinning position tow, and then the cut waste wire is sucked into the wire suction tube, and then the wire suction tube moves to the original position to avoid affecting the normal running tow.

[0144] Among them, during the spinning production process, broken wires occurred in the oiling process section. The optical signal broken wire detection device detected the broken wire situation and fed back to the control system. The control system controlled the display screen in the oiling process section to display the broken wire spinning position (13#) and issued an alarm. The first automatic wire breaking device and the second waste wire collection device located before the oiling process receive signals to cut off and collect the running wire bundles at the broken wire spinning position before the oiling process. Among them, the first automatic wire breaking device controls the laser to cut the wire bundles where the broken wire spinning position (13#) occurs. Because the running speed of the wire bundle is low, the operator manually rolls the cut waste wire into the second waste wire collection device and manually turns on the switch of the winding drum structure.

[0145] Obviously, after abnormal wire breakage occurs in the spinning production line, the above-mentioned device and method of the embodiment of the present invention can complete the emergency work of wire breakage processing within 20 seconds, which effectively avoids the risk of roller entanglement or even production stagnation caused by abnormal wire breakage.

[0146] Comparative Example 1

[0147] Comparative Example 1 uses a traditional method to carry out emergency treatment of broken wires.

[0148] In the spinning production of polyacrylonitrile-based carbon fiber precursor, operators monitor. When a broken wire is found, the spinning position of the broken wire is determined and confirmed. Then, the operator uses scissors to confirm the spinning position in the previous process, cuts the filament bundle, and manually draws the wire. The emergency response time exceeds 1 minute. Moreover, operators are prone to misoperation in a short period of time, with a high risk of roller entanglement. Long-term manual drawing can easily lead to fatigue, and even the spinning position needs to be shut down.

[0149] In summary, an embodiment of the present invention provides an automatic emergency processing method and device for broken wires in spinning production, which mainly forms a set of emergency processing solutions for broken wires through the combined use of broken wire inspection in each process section, an automatic broken wire device, broken wire collection, and broken wire signal display. It can effectively avoid the risk of roller entanglement and even production stagnation caused by abnormal broken wires. For operating staff, it also provides great convenience for the operation of re-shelving the broken wires, and there is no need to re-replace the spinning set with wires.

[0150] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic emergency treatment device for broken silk in spinning production, characterized in that: The automatic emergency treatment device for broken silk in the spinning production process comprises: Broken wire detection system: The broken wire detection system is used to detect whether broken wire occurs during the spinning production process, as well as the spinning position and process where the broken wire occurs; A control system, the control system being connected to the broken wire detection system and being used for receiving a broken wire signal sent by the broken wire detection system; An automatic wire-breaking device, wherein the control system is connected to the automatic wire-breaking device and is used to send a wire-breaking signal to the automatic wire-breaking device so that the automatic wire-breaking device cuts off the running wire bundle in the spinning position where the wire breaking occurs at an upstream of the process where the wire breaking occurs; A waste silk collecting device, wherein the control system is connected to the waste silk collecting device and is used to send a signal to the waste silk collecting device so that the waste silk collecting device collects the cut waste silk; Preferably, the spinning production line is a production line for polyacrylonitrile-based carbon fiber precursor.

2. The automatic emergency treatment device for broken yarns in spinning production according to claim 1 is characterized in that: The device for automatically handling broken silk in an emergency during the spinning production process further comprises: Broken wire signal display system: the control system is connected to the broken wire signal display system and is used to send a signal to the broken wire signal display system so that the broken wire signal display system displays the spinning position and process where the broken wire occurs and sends an alarm signal to remind the supervisor.

3. The method for automatically handling broken yarns in spinning production according to claim 1 or 2, characterized in that: The broken wire detection system comprises: An optical signal broken wire detection system, wherein the optical signal broken wire detection system is used to detect whether the running wire bundles of multiple spinning positions are broken in the first process group; Preferably, the first process group includes a plurality of processes; further preferably, the first process group includes: a water washing process, a hot water drawing process, and an oiling process; Preferably, the optical signal broken wire detection system comprises a plurality of optical signal broken wire detection devices; wherein the optical signal broken wire detection devices are consistent with the number of processes in the first process group and correspond one to one, so as to detect whether the tows at a plurality of spinning positions are broken in the processes corresponding thereto; Preferably, the optical signal broken wire detection device comprises: an optical signal transmitter and a reflector; wherein the optical signal transmitter is located on one side of the running wire bundle, and the reflector is located on the other side of the running wire bundle; wherein the optical signal transmitter and the reflector are arranged opposite to each other; Preferably, when the yarn bundle runs normally, the light emitted by the optical signal transmitter passes through the bottom of the running yarn bundle, hits the reflective plate, and is reflected back to the optical signal transmitter by the reflective plate; when the yarn is broken, the broken yarn will block the light under the action of gravity; Preferably, the optical signal reflector determines whether the yarn is broken and the spinning position where the yarn breakage occurs according to the length of time for receiving the reflected light.

4. The automatic emergency treatment device for broken yarns in spinning production according to any one of claims 1 to 3, characterized in that: The broken wire detection system comprises: Wire collecting machines, the number of which is consistent with the number of spinning positions and corresponds one to one; the wire collecting machines are used to detect whether the running wire bundles at the corresponding spinning positions are broken in the second process group; Preferably, the second process group includes a drying and densification process and a steam drawing process.

5. The automatic emergency treatment device for broken yarn in spinning production according to any one of claims 1 to 4, characterized in that: The automatic wire-breaking device is used to cut off the running wire bundle in the spinning position where the wire breakage occurs at a position before the process where the wire breakage occurs starts and after the process before the process where the wire breakage occurs ends; Preferably, an automatic wire breaking device is installed between each two adjacent steps of the coagulation and molding step, the water washing step, the hot water drawing step, the oiling step, the drying and densification step, and the steam drawing step.

6. The automatic emergency treatment device for broken yarns in spinning production according to any one of claims 1 to 5, characterized in that: The automatic wire-breaking device comprises a first automatic wire-breaking device; wherein the first automatic wire-breaking device comprises: A support, the support being located above the running tow; A laser emitter, wherein the laser emitter is mounted on the bracket and can move horizontally relative to the bracket; A broken wire driving mechanism, the broken wire driving mechanism is drivingly connected to the laser emitter and is used to drive the laser emitter to move horizontally on the bracket; The control system is connected with the broken wire driving mechanism and the laser emitter, and is used to control the broken wire driving mechanism to drive the laser emitter to move horizontally to a set position, and control the laser emitter to emit laser to the running wire bundle at the spinning position where the broken wire occurs, so as to cut it off; Preferably, the bracket includes a horizontally arranged slide bar; the housing of the laser transmitter is sleeved on the slide bar and can move horizontally on the slide bar; Preferably, the broken wire driving mechanism comprises: a motor and a threaded rod; wherein the motor drives the threaded rod to rotate; one end of the laser emitter is slidably connected to the threaded rod, so that the laser emitter can move horizontally relative to the bracket under the rotation of the threaded rod; Preferably, a first automatic wire breaking device is installed between each two adjacent processes in the solidification and molding process, the water washing process, the hot water drawing process, and the oiling process; Preferably, the bracket is located above the transmission roller of the running tow; further preferably, one end of the bracket is connected to the fixed bracket of the transmission roller; Preferably, a laser wire breaking signal detector is also installed on the fixed bracket of the driving roller, which is used to detect whether the first automatic wire breaking device effectively breaks the wire; if so, a signal is sent to the control system, and the control system controls the laser emitter to stop emitting laser after receiving the signal.

7. The automatic emergency treatment device for broken yarns in spinning production according to any one of claims 1 to 6, characterized in that: The automatic wire-breaking device comprises a second automatic wire-breaking device; wherein the second automatic wire-breaking device comprises: A cylinder, wherein the cylinder is connected to a first compressed air delivery pipeline; wherein a first solenoid valve is provided on the first compressed air delivery pipeline; A wire cutting knife, the cylinder is drivingly connected to the wire cutting knife; Wherein, the first solenoid valve is connected to the control system, and is used to control the first compressed air delivery pipeline to deliver compressed air to the cylinder according to the broken wire signal sent by the control system, so that the cylinder drives the broken wire knife to run along the first direction to cut off the wire bundle running on the spinning position of the broken wire; Preferably, the first direction is at a set angle to the direction in which the tow runs, and the set angle is greater than 120° and less than or equal to 150°; Preferably, the width of the wire-breaking knife is related to the spacing between the spinning positions; further preferably, the blade width of the wire-breaking knife = the spacing between the spinning positions - 10 mm; Preferably, a second automatic wire-breaking device is installed between any two adjacent processes among the oiling process, the drying and densification process, and the steam drawing process; preferably, each spinning position is equipped with a second automatic wire-breaking device.

8. The automatic emergency treatment device for broken yarns in spinning production according to any one of claims 1 to 7, characterized in that: The waste wire collecting device comprises a first waste wire collecting device; wherein the first waste wire collecting device comprises: Wire collection drive mechanism; A threaded rod, the threaded rod being drivingly connected to the wire collection drive mechanism; A wire suction tube, wherein the wire suction tube is connected to the threaded rod via a sliding structure so that the wire suction tube moves relative to the threaded rod; a wire bundle suction port is provided at one end of the wire suction tube; Wherein, the wire suction tube is connected to a second compressed air delivery pipeline; wherein, a second solenoid valve is provided on the second compressed air delivery pipeline; The wire collection drive mechanism and the second solenoid valve are both connected to the control system, and are used to control the wire suction pipe to run to the vicinity of the cut wire bundle according to the wire breaking signal sent by the control system, and open the second compressed air pipeline through the second solenoid valve, so that the suction pipe sucks the wire bundle under the action of compressed air; Preferably, the wire collecting drive mechanism uses a motor; Preferably, when the automatic wire-breaking device comprises a second automatic wire-breaking device, a first waste wire collecting device is installed near the second automatic wire-breaking device.

9. The automatic emergency treatment device for broken yarns in spinning production according to any one of claims 1 to 8, characterized in that: The waste silk collecting device comprises a second waste silk collecting device; wherein the second waste silk collecting device comprises a rotating drum structure; Preferably, the drum surface of the rotating drum structure is made of rubber material with grooves; Preferably, the rotating drum structure is driven to rotate by a motor; Preferably, when the automatic wire-breaking device comprises a first automatic wire-breaking device, a second waste wire collecting device is installed near the first automatic wire-breaking device.

10. An automatic emergency treatment method for broken yarns in spinning production, characterized in that: The device for automatically handling broken yarns in spinning production according to any one of claims 1 to 9 is used to automatically handle broken yarns in spinning production; Preferably, the method for automatically handling broken silk in spinning production comprises the following steps: Broken wire detection step: using the broken wire detection system to detect whether broken wires occur during the spinning production process, as well as the spinning position and process where broken wires occur, and feeding back broken wire signals to the control system; Automatic cutting step: the control system sends a wire breaking signal to the automatic wire breaking device, so that the automatic wire breaking device cuts off the running wire bundle in the spinning position where the wire breaking occurs at the upstream of the process where the wire breaking occurs; Waste silk collecting step: the control system sends a signal to the waste silk collecting device, so that the waste silk collecting device collects the cut waste silk; Preferably, the method for automatically handling broken silk in spinning production also includes: Broken wire signal display step: the control system sends a broken wire signal to the broken wire signal display system, so that the broken wire signal display system displays the spinning position and process where the broken wire occurs, and sends out an alarm signal to remind the supervisor; Preferably, for the coagulation molding process, the water washing process, the hot water drawing process, and the oiling process, an optical signal broken wire detection system is used to detect whether broken wires occur during the spinning production process, as well as the spinning position and process where broken wires occur, and the broken wire signal is fed back to the control system; the control system sends a broken wire signal to the first automatic wire breaking device, so that the first automatic wire breaking device cuts off the running wire bundle in the spinning position where the broken wire occurs at the upstream of the process where the broken wire occurs; the control system sends a signal to the second waste wire collecting device, so that the waste wire collecting device operates to collect the cut waste wires; Preferably, for the drying and densification process and the steam drawing process, a wire collecting machine is used to detect whether wire breakage occurs during the spinning production process, as well as the spinning position and process where the wire breakage occurs, and the wire breakage signal is fed back to the control system; the control system sends a wire breakage signal to the second automatic wire breaking device and the first waste wire collecting device, so that the wire suction tube of the first waste wire collecting device will suck the running wire bundle in the spinning position where the wire breakage occurs at the upstream position of the wire breakage process, and control the second automatic wire breaking device to cut it off, and then the first waste wire collecting device collects the cut waste wire.

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