Roving blocking device, slubbing box, spinning apparatus, and roving blocking control method

Abstract

This invention discloses a roving blocking device, a yarn cutting box, spinning equipment, and a roving blocking control method, relating to the field of spinning technology. The roving blocking device includes a first sensor and a blocking mechanism. The blocking mechanism includes a rod that partially extends between roller assemblies based on a yarn breakage signal to block the roving. The first sensor includes a photoelectric sensor that detects the movement of the rod. The rod includes a light-blocking portion and a light-transmitting portion. The rod is positioned opposite the photoelectric sensor from the light-blocking portion to the light-transmitting portion. The movement signal of the rod output by the first sensor can be used together with the yarn breakage signal as a judgment criterion, helping operators to address the two problems that reduce production efficiency: the blocking mechanism has activated even when the yarn has not broken, and the blocking mechanism has not activated even when the yarn has broken. This is beneficial for improving yarn production efficiency.

Description

Technical Field

[0001] This invention relates to the field of spinning technology, and in particular to a roving blocking device, a yarn cutting box, spinning equipment, and a roving blocking control method. Background Technology

[0002] The yarn manufacturing process involves converting roving into yarn. Typically, two roller assemblies are located between the roving and yarn layers. Each roller assembly includes a roller and a corresponding driven roller. The roving is drafted between the two roller assemblies and transformed into yarn. Spinning equipment usually includes a roving blocking device. This device uses sensors to detect yarn breakage. When a breakage occurs, the roving blocking device inserts a blocking mechanism, including a drive device such as an electromagnet and a spring, between the roller assemblies to prevent further roving feeding, thus stopping the roving from being fed in. By blocking the continued feeding of roving, it facilitates faster production recovery after maintenance and reduces waste of roving raw materials.

[0003] However, in the actual use of the roving blocking device, there are sometimes abnormal interruptions in the yarn manufacturing process, which affect the yarn production efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a roving blocking device, which aims to improve yarn production efficiency.

[0005] To achieve the above objectives, the present invention proposes a roving blocking device, comprising a first sensor and a blocking mechanism. The blocking mechanism includes a rod that extends partially between roller assemblies based on a yarn breakage signal to block the roving. The first sensor includes a photoelectric sensor that detects the movement of the rod. The rod includes a light-blocking portion and a light-transmitting portion. The rod is moved from being positioned opposite the photoelectric sensor in the light-blocking portion to being positioned opposite the photoelectric sensor in the light-transmitting portion.

[0006] Optionally, the light-transmitting portion includes a through-hole structure; the photoelectric sensor includes a light-emitting structure and a light-receiving structure, the light-receiving structure being used to receive light reflected from the light-blocking portion.

[0007] Optionally, the light emitting structure and the light receiving structure are disposed on the same side of the rod.

[0008] Optionally, the optical receiving structure includes a phototransistor, the emitter of which is grounded; the collector of which is connected to a preset voltage; a preset resistor is also provided on the collector of the phototransistor; and a level output terminal is provided between the collector of the phototransistor and the preset resistor.

[0009] Optionally, the light-transmitting portion includes a through-structure, the photoelectric sensor includes a light-emitting structure and a light-receiving structure, the light-receiving structure is used to receive light passing through the through-structure, and the light-receiving structure includes a photoresistor or a photodiode; the light-blocking portion and the light-transmitting portion are arranged along the moving direction of the rod.

[0010] The present invention also proposes a yarn cutting box, which includes the above-mentioned roving blocking device.

[0011] Optionally, the yarn cutting box further includes a reflective structure, which is disposed on the side of the rod away from the photoelectric sensor and is disposed opposite to the photoelectric sensor; the yarn cutting box is provided with a connecting through hole, the side wall of the rod is slidably connected to the connecting through hole, and the photoelectric sensor and the reflective structure are both disposed on the hole wall of the connecting through hole.

[0012] The present invention also proposes a spinning device, which includes a second sensor and further includes the aforementioned roving blocking device or the aforementioned yarn cutting box, wherein the yarn cutting box is detachably connected; the second sensor is used to detect yarn breakage.

[0013] Optionally, the spinning equipment further includes a controller, wherein the output terminals of the first sensor and the second sensor are electrically connected to the input terminal of the controller, and the controller is used to output control signals based on the yarn breakage signal and the movement signal of the rod; the spinning equipment further includes a drive device, the input terminal of which is electrically connected to the output terminal of the controller, and the drive device is drively connected to the rod; the controller is used to send a movement signal to the drive device until the rod moves when the yarn breaks and the first sensor does not detect movement of the rod; the spinning equipment further includes a prompting device, and the output terminal of the controller is electrically connected to the prompting device.

[0014] The present invention also proposes a roving blocking control method, comprising the following steps: detecting the movement of a blocking mechanism, the blocking mechanism being used to partially extend between roller assemblies to block the roving; and outputting a control signal based on a yarn breakage signal and a movement signal of the blocking mechanism.

[0015] Optionally, the step of outputting a control signal based on the yarn breakage signal and the movement signal of the blocking mechanism includes: when a yarn breakage is detected but the movement of the blocking mechanism is not detected, outputting a first control signal to move the blocking mechanism; and when a yarn breakage is not detected but the movement of the blocking mechanism is detected, outputting a second control signal to provide a reminder.

[0016] Optionally, the step of outputting a first control signal to move the blocking mechanism when a yarn breakage is detected but no movement of the blocking mechanism is detected includes: outputting a first control signal to move the blocking mechanism within a preset number of times until movement of the blocking mechanism is detected; and issuing an alarm message when the number of times the first control signal to move the blocking mechanism is output exceeds the preset number of times.

[0017] Optionally, the step of detecting the movement of the blocking mechanism includes detecting the movement of the blocking mechanism using a photoelectric sensor; the photoelectric sensor includes a light emitting structure and a light receiving structure, the light receiving structure includes a phototransistor, the emitter of the phototransistor is grounded; the collector of the phototransistor is connected to a preset voltage, a preset resistor is also provided on the collector of the phototransistor, and a level output terminal is provided between the collector of the phototransistor and the preset resistor; when the output level of the level output terminal is greater than the preset level, it is determined that the movement of the blocking mechanism has been detected; when the output level of the level output terminal is less than the preset level, it is determined that the movement of the blocking mechanism has not been detected.

[0018] The technical solution of this invention sets up a first sensor to detect the movement of the rod. The first sensor can output the movement signal of the rod, which can be used together with the yarn breakage signal as a judgment basis. This helps operators to solve two problems that reduce production efficiency as early as possible: the blocking mechanism has been activated even though the yarn has not broken, and the blocking mechanism has not been activated even though the yarn has broken. It allows operators to promptly eliminate the malfunction of the blocking mechanism, stop the machine for maintenance, or use the blocking mechanism to make up for the action of blocking the roving, which is beneficial to improving the production efficiency of yarn. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a front view (with some parts of the entity hidden) of an embodiment of the yarn cutting box and roving blocking device of the present invention.

[0021] Figure 2 This is a left view of an embodiment of the yarn cutting box and roving blocking device of the present invention.

[0022] Figure 3 This is a schematic diagram of the first sensor in one embodiment of the roving blocking device of the present invention.

[0023] Figure 4 This is a diagram showing the electrical signal levels during use of an embodiment of the roving blocking device of the present invention.

[0024] Explanation of icon numbers:

[0025] label name label name 110 rod 111 Light-blocking part 112 Transparent part 120 Reflective structure 210 photoelectric sensor 211 Light emitting structure 212 Optical receiving structure 213 Level output terminal

[0026] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] This invention proposes a roving blocking device.

[0031] Reference Figure 1 and Figure 2In one embodiment of the present invention, the roving blocking device includes a first sensor and a blocking mechanism. The blocking mechanism includes a rod 110, which is used to partially extend between the roller assemblies according to a yarn breakage signal to block the roving; in terms of movement, the rod 110 can be configured as a swing rod or a translation rod; in terms of shape and structure, the rod 110 can be configured as flat or columnar. The first sensor includes a photoelectric sensor 210, which is used to detect the movement of the rod 110; the rod 110 includes a light-blocking portion 111 and a light-transmitting portion 112, the light-blocking portion 111 being the portion that blocks light from passing through; the light-transmitting portion 112 being the portion that allows light to pass through, such as the light-transmitting portion 112 being configured to include a through structure (through hole, through notch, etc.), or the light-transmitting portion 112 being made of transparent or translucent plastic. The rod 110 is used to move from being positioned opposite the photoelectric sensor 210 at the light-blocking portion 111 to being positioned opposite the photoelectric sensor 210 at the light-transmitting portion 112. (See reference...) Figure 1 The rod 110 moves in the downward direction, thereby from Figure 1 The left-hand state in the middle moves to Figure 1 In the right-hand position, the light-blocking part 111 and the light-transmitting part 112 can be arranged along the moving direction of the rod 110, such as the light-blocking part 111 and the light-transmitting part 112 along the direction of movement of the rod 110. Figure 1 The rods are arranged vertically. The rod 110 includes a light-blocking part 111 and a light-transmitting part 112, so that the rod 110 can both partially extend into the roller assembly to block the roving and cooperate with the first sensor to detect displacement, thereby improving the overall compactness of the roving blocking device.

[0032] By setting a first sensor 210 to detect the movement of the rod 110, the first sensor 210 can output the movement signal of the rod 110. The movement signal of the rod 110 can be used together with the yarn breakage signal as a judgment basis. This helps operators to solve the two problems that reduce production efficiency as early as possible: the blocking mechanism has been activated even though the yarn has not broken, and the blocking mechanism has not been activated even though the yarn has broken. It allows operators to promptly eliminate the malfunction of the blocking mechanism, or stop the machine for maintenance in time, or use the blocking mechanism to make up for the action of blocking the roving, which is conducive to improving the production efficiency of yarn.

[0033] As a further optional implementation, the light-transmitting portion 112 is configured to include a through structure (through hole, through notch, etc.), thereby reducing the overall weight while maintaining the light-transmitting function.

[0034] As a further optional implementation, the photoelectric sensor 210 includes a light emitting structure 211 and a light receiving structure 212, the light receiving structure 212 being used to receive light reflected from the light-blocking portion 111. The light emitting structure 211 and the light receiving structure 212 are disposed on the same side of the rod 110, as shown in the figure. Figure 1 Both the light emitting structure 211 and the light receiving structure 212 are located on the rear side of the rod 110. The fact that the light emitting structure 211 and the light receiving structure 212 are located on the same side of the rod 110 makes the photoelectric sensor 210 more compact overall. The light receiving structure 212 is used to receive the light reflected from the light-blocking part 111, which reduces the propagation path of the light and improves the detection accuracy of the photoelectric sensor 210.

[0035] As an optional implementation method, refer to Figure 3 The optical receiving structure 212 includes a phototransistor, the emitter of which is grounded; the collector of which is connected to a preset voltage VCC; a preset resistor R0 is also provided on the collector of the phototransistor; and a level output terminal 213 is provided between the collector of the phototransistor and the preset resistor R0.

[0036] When the aforementioned roving blocking device is in use, because the light emitting structure 211 of the photoelectric sensor 210 illuminates different light-blocking parts 111 and light-transmitting parts 112 on the rod 110, the amount of light received by the light receiving structure 212 varies, thus enabling the detection of movement of the rod 110. When the rod 110 is not moving, the light from the light emitting structure 211 illuminates the light-blocking part 111 and is reflected back to the light receiving structure 212. At this time, due to the relatively close distance, the intensity of the reflected light is relatively high, the phototransistor is turned on, and the level Vin at the level output terminal 213 is close to zero. This level signal close to zero can correspond to the indication that no movement of the rod 110 has been detected. When the rod 110 moves, the light passes through the light-transmitting part 112, illuminates other structures, and is reflected again. Due to the relatively far distance, the intensity of the reflected light is relatively weak, the phototransistor is close to being cut off, and the level Vin at the level output terminal 213 is approximately equal to the preset voltage VCC. This level signal approximately equal to the preset voltage VCC can correspond to the indication that movement of the rod 110 has been detected. (Refer to...) Figure 4 When the output level of the level output terminal 213 is greater than the preset level V1, it is determined that the movement of the rod 110 and the blocking mechanism has been detected; when the output level of the level output terminal 213 is less than the preset level V1, it is determined that the movement of the rod 110 and the blocking mechanism has not been detected.

[0037] As an alternative implementation, the light-transmitting portion 112 includes a through structure (through hole, through notch, etc.), and the photoelectric sensor 210 includes a light-emitting structure 211 and a light-receiving structure 212. The light-receiving structure 212 is used to receive light passing through the through structure. That is, in this case, the light-emitting structure 211 and the light-receiving structure 212 are respectively arranged on opposite sides of the rod 110. Although this increases the installation operations such as alignment of the light-emitting structure 211 and the light-receiving structure 212, the light-emitting structure 211 and the light-receiving structure 212 obtain light through direct illumination, reducing light loss.

[0038] As an alternative implementation, the light receiving structure 212 includes a photoresistor or a photodiode. In this case, a corresponding level signal can be output according to the characteristics of the photoresistor or photodiode to characterize the movement of the blocking mechanism.

[0039] The present invention also proposes a yarn cutting box, as shown in the following figure. Figure 1 , Figure 2 The yarn cutting box includes the aforementioned roving blocking device, making it easy to manufacture and transport the roving blocking device as a whole along with the yarn cutting box.

[0040] As a further optional implementation, the yarn cutting box also includes a reflective structure 120, which is disposed on the side of the rod 110 opposite to the photoelectric sensor 210, and is positioned opposite to the photoelectric sensor 210. The blocking mechanism has a connecting through hole, and the side wall of the rod 110 is slidably connected to the connecting through hole. The photoelectric sensor 210 and the reflective structure are both disposed on the wall of the connecting through hole. In this case, the photoelectric sensor 210 can be disposed on a printed circuit board, and then the printed circuit board can be disposed on the wall of the connecting through hole. The connecting through hole can be configured as a square hole or a round hole. The reflective structure 120 is positioned opposite the photoelectric sensor 210. When the light-transmitting portion 112 is positioned opposite the photoelectric sensor 210, the photoelectric sensor 210 can detect a voltage level through the reflective structure 120. However, this voltage level differs from the voltage level when the light-blocking portion is positioned opposite the photoelectric sensor 210. At this time, the voltage level signal detected by the photoelectric sensor 210 through the reflective structure 120 can be used to indicate that the photoelectric sensor 210 has not suffered any abnormal damage. If this voltage level signal is not detected, it indicates that the photoelectric sensor 210 has been damaged. Therefore, the reflective structure 120 helps operators detect damage to the photoelectric sensor 210 early, preventing the roving blocking device from failing due to abnormal damage to the photoelectric sensor 210. Both the photoelectric sensor 210 and the reflective structure are mounted on the wall of the connecting through-hole, further improving the compactness of the roving blocking device.

[0041] This invention also proposes a spinning device, which includes a second sensor and the aforementioned roving blocking device or yarn cutter box. The yarn cutter box is detachably connected (i.e., the yarn cutter box can be independently disassembled from the spinning device body as a whole). The second sensor is used to detect yarn breakage. When the spinning device includes the aforementioned yarn cutter box, and the yarn cutter box is detachably connected, it is beneficial to manufacture and disassemble the yarn cutter box independently, thereby improving the overall manufacturing efficiency of the spinning device.

[0042] As a further optional implementation, the spinning equipment also includes a controller. The output terminals of the first sensor and the second sensor are both electrically connected to the input terminal of the controller. The controller is used to output control signals based on the yarn breakage signal and the movement signal of the rod 110. In this case, the output terminal of the controller can be used to trigger a reminder device or cause the blocking mechanism to activate by using different control signals (such as high-level signals and low-level signals).

[0043] The aforementioned controller can be configured as a PLC (Programmable Logic Controller). When a yarn breakage occurs (indicated by a yarn breakage signal, such as a high-level signal) and the first sensor does not detect movement of the blocking mechanism, the controller outputs a first control signal (e.g., a high-level signal) to move the blocking mechanism (including rod 110) until movement of the blocking mechanism is detected. At this point, when a yarn breakage is detected, a movement signal is sent to the blocking mechanism to prevent further feeding of roving, reducing waste of roving material and the occurrence of fly yarn. Furthermore, when the yarn has not broken (indicated by a yarn breakage signal, such as a low-level signal) and the first sensor detects movement of the blocking mechanism, the controller outputs a second control signal (e.g., a low-level signal) to provide a warning. This allows for early detection of malfunctions of the blocking mechanism by the operator through a warning device.

[0044] As a further optional implementation, the spinning equipment also includes a drive device, such as a drive motor or a drive cylinder. The input end of the drive device is electrically connected to the output end of the controller, and the drive device is connected to the rod 110 via a transmission mechanism, such as a gear and rack, linkage structure, chain drive, belt drive, or electromagnetic drive, to move the rod 110. At this time, the control device can output the aforementioned first control signal to move the rod 110 to partially extend between the roller assemblies to block the roving, thus achieving a compensatory action when the yarn breaks. Furthermore, the controller is used to send a movement signal to the drive device until the rod 110 moves when the yarn breaks and the first sensor does not detect movement of the rod 110, ensuring the execution of the compensatory action.

[0045] As an optional implementation, the spinning equipment also includes a reminder device, the output of the controller being electrically connected to the reminder device, in which case the reminder device can provide a reminder through the control signal output by the control device.

[0046] The specific structure of the roving blocking device is as described in the above embodiments. Since this yarn cutting box and spinning equipment adopt all the technical solutions of all the embodiments of the above roving blocking device, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0047] This invention also proposes a roving blocking control method, which can be used in the aforementioned roving blocking device, yarn cutting box, and spinning equipment. The roving blocking control method includes the following steps:

[0048] The movement of the blocking mechanism can be detected by the first sensor mentioned above. The blocking mechanism is used to partially extend between the roller assemblies to block the roving.

[0049] Based on the yarn breakage signal and the movement signal of the blocking mechanism, a control signal is output. The yarn breakage signal can be detected by the second sensor or input manually.

[0050] At this time, the control signal can be used to help operators resolve two problems that reduce production efficiency as early as possible: the yarn has not broken but the blocking mechanism has already activated, and the yarn has broken but the blocking mechanism has not activated. This allows operators to promptly eliminate malfunctions of the blocking mechanism or stop the machine for maintenance, which is beneficial to improving yarn production efficiency.

[0051] As a further optional implementation, the step of outputting a control signal based on the yarn breakage signal and the movement signal of the blocking mechanism includes:

[0052] When a break in the yarn is detected but no movement of the blocking mechanism is detected, a first control signal is output to move the blocking mechanism.

[0053] When no yarn breakage is detected but movement of the blocking mechanism is detected, a second control signal is output to provide an alert.

[0054] At this time, different control signals (such as a high-level first control signal and a low-level second control signal) can be used to make the prompting device issue a reminder or to make the blocking mechanism take action, such as:

[0055] If no yarn breakage is detected and movement of the blocking mechanism is detected, a warning signal is issued based on the second control signal mentioned above. Specifically, the warning can be issued through a warning device.

[0056] When a break in the yarn is detected but no movement of the blocking mechanism is detected, the driving device and the blocking structure perform the action of blocking the roving according to the first control signal.

[0057] As an optional implementation, the roving blocking control method further includes the following steps: when a yarn break is detected and no movement of the blocking mechanism is detected after a preset time interval (e.g., 10 milliseconds, 20 milliseconds, 30 milliseconds, 1 second), a movement signal is sent to the blocking mechanism.

[0058] As a further optional implementation, the step of outputting a first control signal to move the blocking mechanism when a yarn breakage is detected but no movement of the blocking mechanism is detected includes: outputting the first control signal to move the blocking mechanism within a preset number range (e.g., 10 times, 20 times, 30 times) until movement of the blocking mechanism is detected; and issuing an alarm message when the first control signal to move the blocking mechanism is output more than the preset number of times, thereby avoiding entering a dead loop and facilitating timely maintenance by reminding the operator.

[0059] As a further optional implementation, the step of detecting the movement of the blocking mechanism includes detecting the movement of the blocking mechanism by means of a photoelectric sensor 210; the photoelectric sensor 210 includes a light emitting structure 211 and a light receiving structure 212, the light receiving structure 212 includes a phototransistor, the emitter of the phototransistor is grounded; the collector of the phototransistor is connected to a preset voltage, a preset resistor R0 is also provided on the collector of the phototransistor, and a level output terminal 213 is also provided between the collector of the phototransistor and the preset resistor R0.

[0060] When the output level at the level output terminal is greater than the preset level, it is determined that the movement of the blocking mechanism has been detected;

[0061] When the output level of the level output terminal is less than the preset level, it is determined that no movement of the blocking mechanism has been detected.

[0062] Refer to the above and Figure 4 When the output level of the level output terminal 213 is greater than the preset level V1, it is determined that the movement of the blocking mechanism has been detected; when the output level of the level output terminal 213 is less than the preset level V1, it is determined that the movement of the blocking mechanism has not been detected.

[0063] As an alternative implementation method, refer to Figure 2 When the blocking mechanism includes a reflective structure 120, the reflective structure 120 is disposed on the side of the rod 110 away from the photoelectric sensor 210, and the reflective structure 120 is disposed opposite to the photoelectric sensor 210, the corresponding level signal can be detected through the reflective structure 120 when the photoelectric sensor 210 is functioning normally. Therefore, the roving blocking control method further includes: when the output level of the level output terminal is less than the preset failure level (the preset failure level is less than the aforementioned preset level V1), the photoelectric sensor 210 is determined to be faulty; at this time, the failure of the roving blocking device caused by abnormal damage to the photoelectric sensor 210 can be avoided.

[0064] The specific structure of the roving blocking device is as described in the above embodiments. Since this roving blocking control method adopts all the technical solutions of all the embodiments of the above roving blocking device, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0065] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A roving blocking device, characterized in that, include: A blocking mechanism, the blocking mechanism including a rod, the rod being used for transmission connection with a driving device; The rod is used to partially extend between the roller assemblies according to the yarn breakage signal to block the roving; The first sensor includes a photoelectric sensor, which is used to detect the movement of the rod during the use of the roving blocking device; the first sensor is used to output a movement signal of the rod, which is used together with the yarn breakage signal as a judgment basis; when the yarn breakage signal indicates that the yarn has broken and no movement of the rod is detected, the rod is used to move according to the movement signal of the driving device. When the yarn breakage signal indicates that the yarn has not broken and the movement of the rod is detected, the movement signal of the rod and the yarn breakage signal are used to form a second control signal for issuing a reminder; The rod includes a light-blocking part and a light-transmitting part; the rod is used to move from being positioned opposite the photoelectric sensor in the light-blocking part to being positioned opposite the photoelectric sensor in the light-transmitting part.

2. The roving break-out device of claim 1 wherein, The light-transmitting portion includes a through-structure; the photoelectric sensor includes a light-emitting structure and a light-receiving structure, the light-receiving structure being used to receive light reflected from the light-blocking portion.

3. The roving break-out device of claim 2 wherein, The light emitting structure and the light receiving structure are located on the same side of the rod.

4. A roving break device according to claim 2 or 3, characterised in that The optical receiving structure includes a phototransistor, the emitter of which is grounded; the collector of which is connected to a preset voltage; a preset resistor is also provided on the collector of the phototransistor; and a level output terminal is provided between the collector of the phototransistor and the preset resistor.

5. The roving break-out device of claim 1 wherein, The light-transmitting portion includes a through-structure, and the photoelectric sensor includes a light-emitting structure and a light-receiving structure. The light-receiving structure is used to receive light passing through the through-structure, and the light-receiving structure includes a photoresistor or a photodiode. The light-blocking portion and the light-transmitting portion are arranged along the moving direction of the rod.

6. A yarn cutting cassette characterized by, Includes the roving blocking device as described in any one of claims 1 to 5.

7. The yarn cutting box as described in claim 6, characterized in that, The yarn cutting box also includes a reflective structure, which is disposed on the side of the rod away from the photoelectric sensor and is disposed opposite to the photoelectric sensor; the yarn cutting box is provided with a connecting through hole, the side wall of the rod is slidably connected to the connecting through hole, and the photoelectric sensor and the reflective structure are both disposed on the hole wall of the connecting through hole.

8. Spinning apparatus, characterized in that The spinning equipment includes a second sensor, and the spinning equipment also includes a roving blocking device as described in any one of claims 1 to 5 or a yarn cutting box as described in claim 6 or 7, the yarn cutting box being detachably connected; the second sensor is used to detect yarn breakage.

9. The spinning equipment as described in claim 8, characterized in that, The spinning equipment also includes a controller, wherein the output terminals of the first sensor and the second sensor are electrically connected to the input terminal of the controller, and the controller is used to output control signals based on the yarn breakage signal and the movement signal of the rod; The spinning equipment also includes a drive device, the input end of which is electrically connected to the output end of the controller, and the drive device is connected to the rod in a transmission connection; the controller is used to send a movement signal to the drive device until the rod moves when the yarn breaks and the first sensor does not detect the movement of the rod. The spinning equipment also includes a prompting device, and the output terminal of the controller is electrically connected to the prompting device.

10. A roving break control method characterized by, The roving blocking control method is applied during the use of the roving blocking device as described in any one of claims 1 to 5, and the roving blocking control method includes the following steps: The movement of the blocking mechanism is detected; the blocking mechanism is used to partially extend between the roller assemblies to block the roving. Based on the yarn breakage signal and the movement signal of the blocking mechanism, a control signal is output.

11. The roving blocking control method according to claim 10, wherein The step of outputting a control signal based on the yarn breakage signal and the movement signal of the blocking mechanism includes: When a break in the yarn is detected and no movement of the blocking mechanism is detected, a first control signal is output to move the blocking mechanism. When no yarn breakage is detected and movement of the blocking mechanism is detected, a second control signal is output to provide a warning.

12. The roving blocking control method according to claim 11, wherein The step of outputting a first control signal to move the blocking mechanism when a yarn breakage is detected but no movement of the blocking mechanism is detected includes: Within a preset number of times, a first control signal is output to move the blocking mechanism until the movement of the blocking mechanism is detected; An alarm message is issued when the first control signal used to move the blocking mechanism is output more than a preset number of times.

13. The roving blocking control method according to claim 10, wherein The step of detecting the movement of the blocking mechanism includes detecting the movement of the blocking mechanism by a photoelectric sensor; The photoelectric sensor includes a light emitting structure and a light receiving structure. The light receiving structure includes a phototransistor, the emitter of which is grounded. The collector of the phototransistor is connected to a preset voltage. A preset resistor is also provided on the collector of the phototransistor. A level output terminal is also provided between the collector of the phototransistor and the preset resistor. When the output level of the level output terminal is greater than the preset level, it is determined that the movement of the blocking mechanism has been detected; When the output level of the level output terminal is less than the preset level, it is determined that no movement of the blocking mechanism has been detected.

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