Broken yarn detection device of ring spinning machine

Abstract

The invention belongs to the technical field of textile auxiliary devices, and particularly relates to a broken yarn detection device of a ring spinner, which comprises a drafting machine body, a support rod arranged on the end face of the drafting machine body, a mounting shell arranged on the end face of the support rod, detection shells arranged on two sides of the mounting shell, and detection rollers slidably arranged in the detection shells. The detection roller can detect the occurrence condition of yarn breakage, a yarn breakage protection mechanism is arranged at the position, below the detection roller, of the inner bottom of the detection shell, tensioning rollers are slidably arranged at the positions, inside the detection shell, of the two sides of the detection roller, the tensioning rollers can tension roving, and braking shells are arranged at the two ends of the detection shell. By arranging the structures such as the detection roller and the clamping blocks, the polymerization roller can be braked at the first time, the polymerization roller is prevented from continuously rotating to convey the yarn, redundant yarn is prevented from being accumulated in the detection device, and the safety and stability of the device are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of textile auxiliary devices, and in particular relates to a yarn break detection device for a ring spinning machine. Background Art

[0002] Ring spinning machine is one of the most widely used spinning equipment in the textile industry. It is mainly used to make coarse yarn into fine yarn through twisting and winding processes. During twisting, the coarse yarn will break due to the stretching of the drafting structure. Yarn breakage will cause equipment shutdown, and the staff will also need to spend a lot of energy to reconnect the wires, which is time-consuming and labor-intensive. Therefore, it is necessary to detect yarn breakage during twisting.

[0003] Patent No. CN210826589U discloses a yarn break detection device, including a mounting connection frame, a connecting plate fixedly mounted on the top of the mounting connection frame, a control device fixedly mounted on the front of the connecting plate, an alarm device fixedly mounted on the front of the connecting plate located on the right side of the control device, a placement box fixedly mounted on the top of the connecting plate, a support spring fixedly mounted on the bottom of the inner cavity of the placement box, and a connecting seat fixedly mounted on the top of the support spring. The yarn break detection device, by placing the yarn between two supporting yarn rollers and arranging an infrared detection device above, makes the yarn detection range relatively large, thereby ensuring the detection accuracy, and by arranging the movable support plate, the pressure detector and the first tension spring, the change in pressure when the yarn breaks can detect the breakage, thereby ensuring that the yarn break detection can be carried out in conjunction with the infrared detection device.

[0004] In the prior art, the yarn can be detected by setting a movable support plate and an infrared detection device, but the overall use still has the following problems: First, in the prior art, when the drafting device is drafting the roving, the roving is relatively rough and has uneven thickness in some places. Therefore, when the drafting pressure is too large, the roving is easy to break in the drafting device. The broken roving is suddenly released due to the tensile force of the drafting, resulting in the broken ends being loose and rebounding. The existing device cannot fix the broken roving, resulting in the yarn being scattered due to airflow, equipment vibration or mechanical movement, and being easily involved in the leather rollers, roller rods and other components in the drafting area, thus affecting the service life of the device. Secondly, when the existing device stretches the roving, the fiber lengths in the roving are not completely consistent, and the fibers produce short fibers due to mechanical friction, excessive stretching or static electricity. The short fibers will reduce the connection strength of the yarn and increase the yarn breakage rate. The existing device does not clean the short fibers generated during the drafting process. The fine short fibers will not only affect the strength of the yarn, but also be adsorbed inside the detection device, affecting the accuracy of the yarn break detection device. Finally, when the existing drafting device drafts the roving, the roving is prone to lateral diffusion in the drafting zone, and even the phenomenon of fluffy sliver occurs, which affects the efficiency and strength of twisting. Moreover, due to the uneven distribution of the stage thickness of the roving, the drawn lengths of the roving in different stages are different, resulting in the overlong roving after drafting being wound around the outer surfaces of the roller rod and the top roller, affecting the service life of the device. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a broken yarn detection device for a ring spinning frame. By setting structures such as a detection roller and clamping blocks, the present invention can, in the event of a yarn break, brake the polymerization roller immediately to prevent the polymerization roller from continuing to rotate and convey the yarn, preventing excess yarn from accumulating inside the detection device, and improving the safety and stability of the device; by setting structures such as a contact suction block and a sticky roller, the inside of the detection housing can be cleaned, preventing short fluff generated on the surface of the yarn from hindering the transportation of the yarn and affecting the quality of the yarn during the conveyance of the yarn. By setting a cleaning housing and a sticky roller, the short fluff can be adsorbed and cleaned, thereby improving the quality of the yarn.

[0006] In order to achieve the above object, the present invention provides the following technical solution: A broken yarn detection device for a ring spinning frame, including a drafting body, on the end surface of the drafting body, a plurality of support rods are provided, on the end surfaces of the plurality of support rods, mounting shells are provided, on both sides of the plurality of mounting shells, detection housings are provided, inside both of the detection housings, a detection roller is slidably provided, the detection roller can detect the occurrence of a broken yarn, and below the detection roller, a broken yarn protection mechanism is provided at the inner bottom of the detection housing; On both sides of the detection roller, two tension rollers are slidably provided inside the detection housing, and the two tension rollers can tension the roving; At both ends of the two detection housings, brake housings are provided, between the plurality of brake housings and the mounting shells, polymerization rollers capable of emergency stopping are rotatably provided, on one side of the polymerization roller, a pressing block capable of mutual contact is slidably provided, and on the bottom end surface of the pressing block, a contact suction block is provided, and the contact suction block can adsorb and clean the fluff and dirt on the surface of the roving.

[0007] By setting the detection roller, the broken yarn protection structure can be triggered immediately when a broken yarn phenomenon occurs, so that the broken yarn is fixed on the outer circumference of the polymerization roller, and the polymerization roller is stopped. This not only prevents the polymerization roller from transporting the broken yarn and prevents the yarn from accumulating inside the detection housing, improving the service life of the device, but also can fix the yarn, facilitating the staff to find the yarn break and reconnect the yarn, improving the work efficiency. Preferably, a detachable cleaning housing is provided on the end surface of each of the plurality of detection housings. A sticky roller is rotatably provided inside each of the plurality of cleaning housings. The bottom end surface of the cleaning housing is open. An air pump is provided on the end surface of the two mounting housings. The air pump is communicated with the inside of the cleaning housing through a hose.

[0008] By providing the cleaning housing and the sticky roller, the air inside the cleaning housing can be pumped by the air pump, and the short fluff inside the detection housing can be adsorbed through the cleaning housing, preventing the short fluff from being adsorbed on the surface of the yarn again, improving the drafting quality of the yarn. At the same time, by providing a rotating sticky roller, the short fluff can be evenly adhered to the outer surface of the sticky roller, improving the utilization efficiency of the sticky roller.

[0009] Preferably, a brake wheel is provided inside the brake housing on one side of the polymerization roller. Clamping blocks are slidably provided inside the brake housing on both sides of the brake wheel. The two clamping blocks can prevent the brake wheel from rotating. Compressed second springs are provided between the two clamping blocks and the inner wall of the brake housing.

[0010] By providing the second spring and the clamping blocks, when a yarn breakage occurs, the elastic potential energy of the second clamping block can be used to push the two clamping blocks to move relatively, thereby stopping the brake wheel and preventing the polymerization roller from continuing to rotate and transport the yarn.

[0011] Preferably, drive plates are provided on the outer surfaces of the two clamping blocks. An elliptical block is rotatably provided between the two drive plates. The elliptical block rotates and abuts against the outer surfaces of the two drive plates. A rotating shaft is provided inside the elliptical block.

[0012] By providing the elliptical block, when the device is operating normally, the long axis of the elliptical block can be used to block the two drive plates from approaching each other. When a yarn breakage occurs, the elliptical block will rotate, enabling the two clamping blocks to approach each other, so that the two clamping blocks can stop the brake wheel. After the yarn breakage repair is completed, the elliptical block can be rotated to push the two drive blocks back to their original positions for the next use, improving the maintenance efficiency.

[0013] Preferably, a cross-shaped stopper is provided on the outside of the rotating shaft. A latch is slidably provided at the bottom of the brake housing below the cross-shaped stopper. The latch abuts against one side of the cross-shaped stopper. The latch will quickly bounce downward and disengage from the cross-shaped stopper when the roving breaks.

[0014] By providing the cross-shaped stopper, the rotation of the elliptical block can be blocked. When a yarn breakage occurs, the latch bounces downward, releasing the cross-shaped stopper, allowing the elliptical block to rotate, thereby driving the clamping blocks to stop the brake wheel.

[0015] Preferably, the yarn breakage protection mechanism includes a protection housing disposed inside the detection housing. A trigger detector is provided on the end face of the protection housing. An ejector is disposed inside the protection housing on one side of the trigger detector. The output end of the ejector extends outwards from the detection housing. A driving link is provided at the output end of the ejector, and the driving link is fixedly connected to two clamping blocks.

[0016] By providing the trigger detector and the ejector, when a yarn breakage occurs, the detection roller that loses support slides downwards under its own gravity, presses the trigger detector and activates the ejector, causing the ejector to push the driving link downwards, thereby driving the clamping block to move, so that the cross-shaped stopper on the top of the clamping block rotates, driving the clamping block to stop the brake wheel.

[0017] Preferably, fourth slide rails are provided inside both of the brake housings. A slide rod is slidably fitted inside the fourth slide rails. Driving rollers are rotatably provided on both sides of the slide rod. Extrusion blocks are provided outside both of the driving rollers. The two extrusion blocks are respectively fixedly connected to the two clamping blocks. The slide rod is fixedly connected to the pressing block.

[0018] By providing the extrusion blocks, it is possible to drive the pressing block to move downwards through the driving rollers while stopping the brake wheel, thereby driving the pressing block to move downwards, so as to fix the yarn at the bottom of the pressing block on the surface of the polymerization roller, preventing the broken end from rebounding.

[0019] Preferably, an air chamber is provided inside the pressing block. One end of the air chamber is communicated with an air extraction pump through a hose. The bottom of the air chamber is communicated with a contact suction block. The bottom of the contact suction block is open, and a filter screen plate is slidably provided inside the opening. A plurality of rubber particles are provided on the end face of the bottom of the contact suction block on both sides of the filter screen plate.

[0020] By providing the filter screen plate and the air chamber, when the pressing block is above the yarn, it is possible to extract the fine fluff on the surface of the yarn through the air pump and adsorb the fine fluff on the surface of the filter screen plate, thereby improving the connection strength of the yarn.

[0021] Preferably, a fixed housing is provided on the outside of the brake housing on one side of the rotating shaft. A torsion spring is provided inside the fixed housing. The torsion spring is connected to the rotating shaft. A knob is provided at one end of the rotating shaft.

[0022] By providing the torsion spring and the rotating shaft, the torsion spring is in a wound state. When the clamping block disengages from one side of the cross-shaped stopper, the torsion spring will recover due to elastic potential energy and drive the rotating shaft to rotate, causing the elliptical block at one end of the rotating shaft to rotate.

[0023] Preferably, a plurality of anti-slip strips are provided on the outside of the plurality of brake wheels. The outside of the clamping block is provided with an anti-slip rough surface, and the anti-slip rough surface is correspondingly arranged with the anti-slip strips.

[0024] By providing the anti-skid groove surface and the anti-skid strip, the friction between the clamping block and the brake wheel can be increased, thereby improving the braking effect.

[0025] In summary, compared with the prior art, the beneficial effects of this solution are: (1) The present invention provides a detection roller, a protective housing, a driving connecting rod, a clamping block and other structures, so that when a yarn is interrupted, the detection roller that has lost its support can slide downward and trigger the yarn-breaking protection structure, thereby braking the aggregation roller immediately to prevent the aggregation roller from continuing to rotate and transport the yarn, thereby preventing the interrupted yarn from accumulating inside the detection structure, thereby improving the safety and stability of the device; (2) The present invention provides a knob and a pressing block as well as a clamping block and a non-slip rough surface, so that after the yarn is interrupted, the brake wheel can be braked by the clamping block immediately, and the yarn can be fixed on the outer surface of the aggregation roller by the downward sliding pressing block, so that the staff can easily find the yarn for connection, thereby improving the work efficiency; (3) The present invention can clean the interior of the detection housing by providing structures such as an abutting dust suction block and a filter screen plate, a cleaning housing and a sticky roller. During the conveying of yarn, short fluff generated on the surface of the yarn will hinder the transportation of the yarn and affect the quality of the yarn. By providing a cleaning housing and a sticky roller, the short fluff can be adsorbed and cleaned, thereby improving the quality of the yarn; (4) The present invention can tension the loose yarn by arranging structures such as a tensioning roller, a first spring, and a supporting roller, so that the yarn is in a taut state, thereby improving the accuracy of detection. At the same time, the taut yarn can restrain the movement of the fiber during the drafting transportation, avoid accidental stretching due to shaking or tension, avoid local thinning or breakage, and improve the overall quality of the yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 for Figure 2 Plane section view at AA in the middle; Figure 4 for Figure 3 A partial enlarged view of point B in the middle; Figure 5 It is a schematic diagram of the structure of the detection shell parts; Figure 6 Schematic diagram of the internal structure of the shell parts for testing; Figure 7 for Figure 6 A partial enlarged view of point C in the middle; Figure 8 forFigure 6 Partial enlarged view at D in Figure 9 is Figure 6 Partial enlarged view at E in Figure 10 Structural schematic diagram of the brake housing part; Figure 11 is Figure 5 Partial enlarged view at F in In the figure: drafting body 10, support rod 11, top roller 12, roller rod 13, mounting shell 14, detection housing 15, brake housing 16, cleaning housing 17, sticky roller 18, air extraction pump 20, first slide rail 21, first slider 22, first spring 23, tensioning roller 24, second slide rail 25, support roller 26, detection roller 27, protection housing 28, polymerization roller 29, pressing block 30, clamping block 31, third slide rail 32, second spring 33, driving plate 34, elliptical block 35, cross-shaped stop block 36, clamping block 37, driving connecting rod 38, trigger detector 39, ejector 40, rotating shaft 41, torsion spring 42, knob 43, extrusion block 44, sliding rod 45, fourth slide rail 46, driving roller 47, brake wheel 48, abutting dust suction block 49, filter screen plate 50, rubber particles 51, air cavity 52, anti-slip strip 53, anti-slip rough surface 54, fixed housing 55, inclined part 56, horizontal strip 57. Specific implementation mode

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Embodiment 1: Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a broken yarn detection device for a ring spinning machine includes a drafting body 10. A support rod 11 is arranged on the end face of the drafting body 10. A top roller 12 is rotatably arranged at the bottom of the support rod 11. A plurality of roller rods 13 are rotatably arranged on the end face of the drafting body 10 at the bottom of the top roller 12. It should be noted here that the support rod 11, the top roller 12 and the roller rod 13 are not the innovative content of the present invention, and the whole is conventional prior art. Here, a certain stroke structure in the drafting device of the ring spinning machine is selected. This stroke structure is a section with a relatively high probability of medium roving breakage in the existing technology. Selecting this section is only for better demonstration, but it does not mean that it cannot be used in other stroke positions. The present solution is not limited. Therefore, regarding the conveying method of the top roller 12 and the roller rod 13, the specific structure (signal transmission method, cooperation between various components), etc., the present solution will not be elaborated too much; The main body of the detection device is a mounting shell 14 installed on the outside of the support rod 11, and detection shells 15 are arranged on both sides of the mounting shell 14. In this scheme, one detection shell 15 represents the detection of a strand of coarse yarn. The specific number and arrangement of the detection shells 15 are not limited. Two groups of symmetrically arranged first slide rails 21 are arranged inside each detection shell 15, and first sliders 22 are slidingly arranged outside the two first slide rails 21. A first spring 23 is connected between the first slider 22 and the bottom end surface of the detection shell 15. The multiple first sliders 22 are grouped in pairs, and each group of first sliders 22 is symmetrically arranged. A tensioning roller 24 is rotatably arranged between each group of two first sliders 22.

[0029] For further reference, Figure 1 , Figure 2 , Figure 3 and Figure 4 A second slide rail 25 is disposed between the two tension rollers 24, a detection roller 27 is slidably disposed inside the second slide rail 25, and support rollers 26 are rotatably disposed on both sides of the second slide rail 25. For a specific winding method, refer to the attached Figure 4 The yarn passes through the outer cylindrical surface of the bottom of the tension roller 24, and then winds around the upper surface of the support roller 26. Then, the yarn passes through the outer cylindrical surface of the bottom of the detection roller 27, and then passes through the upper surface of another support roller 26. Finally, the yarn passes through the lower surface of another tension roller 24 and passes out from the inside of the detection housing 15. During the yarn drafting process, since the yarn will be stretched outwards, the tensile force at one end will keep the yarn in a tensioned state. The present invention utilizes this tension pressure to lift the tension roller 24 upwards through the tight force, causing the first slider 22 to move upwards and pulling the first spring 23 between the bottom end face of the first slider 22 and the detection housing 15. The purpose of this setting is that when the drafted yarn is too long and the roving becomes loose as a whole, the upward lifting force on the tension roller 24 will decrease. At this time, the first spring 23 shortens due to elastic potential energy and pulls the first slider 22 downwards, causing the two first sliders 22 to pull the tension roller 24 downwards, and the tension roller 24 to pull both ends of the yarn downwards. The middle section of the yarn is supported by the two support rollers 26, causing the yarn between the two support rollers 26 to be tightened, thereby lifting the detection roller 27 and supporting the detection roller 27 so that the detection roller 27 can detect the yarn. By setting the tension roller 24 and the support rollers 26, the sliding tension roller 24 can pull the overly long yarn, increasing the folding path of the yarn. When the yarn is too long, the travel of the yarn inside the detection housing 15 can be increased, and the yarn between the two supports 26 can be kept in a tightened state, thereby adjusting the length of the yarn and preventing the overly long and loose yarn from accumulating inside the detection housing 15, which may affect the operation of the detection device, thus improving the stability of the device. The tightened yarn can improve the twisting quality of the device, thereby improving the processing effect. At the same time, the tightened yarn can support the detection roller 27, thereby improving the detection accuracy of the device; Further, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4The upper end surface of the detection shell 15 is provided with a detachable cleaning shell 17. The disassembly method is a prior art and will not be elaborated in this article. By disassembling the cleaning shell 17, it is convenient to install and repair the internal structure of the detection shell 15, which improves the installation efficiency and can also facilitate the yarn to pass through the interior of the detection shell 15, thereby improving the traction efficiency of the yarn. A sticky roller 18 is rotatably arranged inside the cleaning shell 17. The surface of the sticky roller 18 can absorb and adhere to short fluff. The upper end surface of the cleaning shell 17 can be disassembled so that the sticky roller 18 can be replaced. This arrangement can improve the cleaning efficiency of the sticky roller 18. A hose is arranged on the upper end surface of the cleaning shell 17, and one end of the hose is arranged on the end surface of the mounting shell 14. The vacuum pump 20 can extract the air inside the cleaning shell 17 through the hose, so that negative pressure is generated inside the cleaning shell 17, thereby adsorbing the inside of the detection shell 15 through the through hole 19. During the transportation process of the yarn transported inside the detection shell 15, the short fluff on the surface will be adsorbed into the inside of the cleaning shell 17 by the through hole 19 and adhere to the surface of the sticky roller 18, thereby improving the processing quality of the yarn. A driving motor is provided on one side of the sticky roller 18 and the outside of 17. The output shaft of the driving motor is transmission-connected to the sticky roller 18. The output shaft of the driving motor drives the sticky roller 18 to rotate at a uniform speed, so that the short fluff is evenly adsorbed on the outer surface of the sticky roller 18, thereby improving the utilization efficiency of the sticky roller 18.

[0030] For further reference, Figure 6 , Figure 9 and Figure 10 , a brake housing 16 is provided on both sides of the detection housing 15, two third slide rails 32 are provided inside the brake housing 16, two clamping blocks 31 are slidably provided on the surfaces of the two third slide rails 32, an arc surface is provided on one side adjacent to the two clamping blocks 31, a second spring 33 is provided between the two clamping blocks 31 and the inner wall of the brake housing 16, and the plurality of second springs 33 are in a compressed state, a brake wheel 48 is provided between the two clamping blocks 31, the brake wheel 48 is circular as a whole, and the brake wheel 48 is fixedly connected to one side of the aggregation roller 29; On the outside of both clamping blocks 31, there are driving plates 34 provided. An elliptical block 35 is rotatably arranged between the two driving plates 34. The elliptical block 35 is overall elliptical in shape. The long-axis ends of the elliptical block 35 abut against the outer surfaces of the two driving plates 34. On one side of the elliptical block 35, there is a rotating shaft 41. The rotating shaft 41 extends outside the braking housing 16. On the outside of the braking housing 16, there is a fixed housing 55. Inside the fixed housing 55, there is a wound-up spiral spring 42. One end of the spiral spring 42 is fixedly connected to the rotating shaft 41. On the outer circular surface of the rotating shaft 41, there is a cross-shaped stopper 36 fixedly arranged. Below the cross-shaped stopper 36, a latch 37 is slidably arranged on the bottom end face of the braking housing 16. The latch 37 is overall L-shaped. On the top end face of the latch 37, there is a protrusion. The protrusion is hooked on one side of the cross-shaped stopper 36, which can prevent the cross-shaped stopper 36 from rotating, thereby preventing the rotating shaft 41 from rotating. On the outside of the fixed housing 55, there is a knob 43. The knob 43 is fixedly connected to the rotating shaft 41.

[0031] Further, referring to Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , inside the detection housing 15, below the detection roller 27, there is a protective housing 28 provided. Inside the protective housing 28, there is a trigger detector 39 arranged. On one side of the trigger detector 39, there is an ejector 40 arranged inside the protective housing 28. The output end of the ejector 40 extends out of the inside of the detection housing 15. The output end of the ejector 40 is provided with a driving connecting rod 38. The driving connecting rod 38 is fixedly connected to the two latches 37. During the conveying process of the yarn, due to the tension of the tensioning roller 24, the yarn is in a taut state and supports the detection roller 27 through the taut yarn. When the yarn breaks, the detection roller 27 at the top of the yarn loses support and will quickly slide down along the second slide rail 25, causing the detection roller 27 to press the trigger detector 39. The trigger detector 39 starts the ejector 40 through electrical connection, causing the output end of the ejector 40 to eject and push the driving connecting rod 38. The driving connecting rod 38 drives the two latches 37 to move downward. The two latches 37 disengage from one side of the cross-shaped stopper 36, enabling the rotating shaft 41 inside the cross-shaped stopper 36 to rotate. At this time, the wound-up spiral spring 42 releases its elastic potential energy and will drive the rotating shaft 41 to rotate, causing the rotating shaft 41 to drive the elliptical block 35 to rotate; After the elliptical block 35 rotates, the major axis of the elliptical block 35 changes from a horizontal state to a vertical state. The two driving plates 34 are supported by the minor axis instead of the major axis, enabling the two clamping blocks 31 to slide relative to each other. At this time, the compressed second spring 33 elongates due to its elastic potential energy and pushes the two clamping blocks 31 to move relatively, causing the two clamping blocks 31 to slide along the third slide rail 32 and clamp the brake wheel 48, braking the brake wheel 48 to prevent it from continuing to rotate, thereby preventing the yarn on the end face of the polymerization roller 29 from being transported continuously. Through this setting, the polymerization roller 29 can be braked immediately when the yarn breaks, preventing the polymerization roller 29 from continuing to transport the yarn after the yarn breaks and avoiding the yarn from winding around the inside of the detection device and the outer surface of the existing conveying device, which affects the service life of the equipment. Finally, the operator needs to connect the broken yarn. After the connection is completed, by rotating the knob 43, the knob 43 drives the rotating shaft 41 to rotate and applies pressure to wind up the torsion spring 42. When the rotating shaft 41 rotates, it drives the elliptical block 35 at one end to rotate, and the outer edge passed by the elliptical block 35 when it rotates pushes the two driving plates 34 to separate, thereby releasing the braking of the brake wheel 48 for the next use.

[0032] Further, referring to Figure 6 and Figure 9 , a return spring is provided between the bottom end face of the clamping block 37 and the inner bottom of the brake housing 16. By providing the return spring, the clamping block 37 can slide downward to compress the return spring and be reset by the elastic potential energy of the return spring at the end of the maintenance for the next use, improving the maintenance efficiency of the device.

[0033] Further, referring to Figure 6 , Figure 9 and Figure 10 A fourth slide rail 46 is provided inside the brake housing 16. A slide bar 45 is slidably fitted inside the fourth slide rail 46. Driving rollers 47 are provided on both sides of the slide bar 45. Extrusion blocks 44 are provided on both sides of the driving rollers 47. The two extrusion blocks 44 are fixedly connected to the top end faces of the clamping blocks 31 respectively. Bevels are provided on the outsides of the two extrusion blocks 44, and the bevels abut against the outer circumferential surfaces of the driving rollers 47. When the two extrusion blocks 44 move towards each other, they will squeeze the driving rollers 47, causing the driving rollers 47 to move downward along the bevels and driving the slide bar 45 to slide downward along the fourth slide rail 46.

[0034] Further, referring to Figure 6 , Figure 9 and Figure 10A lower pressing block 30 is provided at one end of the slide bar 45, and the lower pressing block 30 is located just above the aggregation roller 29. An abutting dust suction block 49 is provided at the bottom of the lower pressing block 30. When the slide bar 45 slides downward, it drives the lower pressing block 30 to slide downward, so that the lower pressing block 30 drives the abutting dust suction block 49 to slide downward. The abutting dust suction block 49 sliding downward can abut the yarn against the outer circumferential surface of the aggregation roller 29. Through this arrangement, the position of the yarn can be fixed, which is convenient for subsequent staff to connect the yarn, thereby improving work efficiency. When the roving breaks, The continuous output of the rollers and the tension of twisting and winding are suddenly released, and the yarn at the broken end may rebound or spread out. If it is not fixed, the yarn will float due to airflow, equipment vibration or mechanical movement, and it is easy to be rolled into the leather rollers, roller rods and other components in the drafting area, which will affect the service life of the device and waste cleaning time. The downward sliding abutment dust suction block 49 can fix the yarn on the outer cylindrical surface of the aggregation roller 29 to prevent the yarn from being wound around the outer surface of the device by the continuously rotating roller rod 13, thereby improving the safety of the device.

[0035] For further reference, Figure 2 , Figure 3 , Figure 4 and Figure 10 The lower pressing block 30 is provided with an air cavity 52 inside, and a hose is provided on the top end surface of the lower pressing block 30. The hose is connected to the vacuum pump 20, and a plurality of rubber particles 51 are provided on the bottom end surface of the dust collecting block 49. A filter screen 50 is provided between the plurality of rubber particles 51 for sliding. When the yarn is transported, the air inside the lower pressing block 30 can be extracted by starting the vacuum pump 20, so that negative pressure is generated inside the lower pressing block 30, and the fine fluff adhering to the surface of the aggregation roller 29 is extracted through the filter screen 50, and the surface of the aggregation roller 29 is cleaned to prevent the fine fluff from adhering to the surface of the aggregation roller 29 for the second time. Attached to the surface of the transported yarn, it affects the processing quality of the yarn. By setting the rubber particles 51, the elastic rubber particles 51 can be elastically deformed due to the downward pressure of the abutting dust suction block 49 when clamping the spun yarn, thereby preventing the abutting dust suction block 49 from damaging the outer surface of the aggregation roller 29 and improving the service life of the aggregation roller 29. At the same time, the rubber particles 51 can increase the roughness of the bottom end surface of the abutting dust suction block 49, thereby improving the clamping and fixing effect of the spun yarn, preventing the yarn from detaching from the surface of the aggregation roller 29, and facilitating the staff to find the yarn for connection.

[0036] Embodiment 2: refer to Figure 10, A yarn breakage detection device for a ring spinning machine. A plurality of anti-slip strips 53 are provided on the outer surface of the brake wheel 48, and a plurality of anti-slip rough surfaces 54 are provided on the arc surfaces of the two clamping blocks 31. The anti-slip rough surfaces 54 are arranged corresponding to the anti-slip strips 53. When the two clamping blocks 31 brake the brake wheel 48, through the anti-slip strips 53 and the anti-slip rough surfaces 54, the anti-slip strips 53 can be engaged into the interior of the anti-slip rough surfaces 54, improving the braking effect and thus enhancing the stability of the device.

[0037] Embodiment Three: Reference Figure 5 and Figure 11 , A yarn breakage detection device for a ring spinning machine. The polymerizing roller 29 is integrally in the shape of an hourglass with a thinner middle section and thicker ends. Two inclined portions 56 are provided on the outer surface of the polymerizing roller 29, and a plurality of cross bars 57 are provided between the two inclined portions 56. By providing the inclined portions 56, the yarn being transported can be gathered towards the middle section of the polymerizing roller 29 through the inclined surfaces of the inclined portions 56. The gathered yarn is more conducive to twisting, thereby improving the twisting efficiency and processing quality. By providing a plurality of cross bars 57, the roughness of the surface of the polymerizing roller 29 can be increased, thereby increasing the friction between the polymerizing roller 29 and the yarn. When the yarn breaks, the downward-sliding pressing block 30 will press the abutting dust-absorbing block 49 against the outer circular surface of the polymerizing roller 29, and the plurality of cross bars 57 will abut against the bottom end surface of the abutting dust-absorbing block 49, thereby fixing the yarn on the outer surface of the polymerizing roller 29. By providing a plurality of cross bars 57, the friction between the polymerizing roller 29 and the abutting dust-absorbing block 49 can be increased, preventing the yarn from detaching from the polymerizing roller, and thus improving the fixing effect.

[0038] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but rather use the difference in functions of the components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0039] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.

[0040] The foregoing description has shown and described several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope of the application concept described herein through the above teachings or the techniques or knowledge in the relevant field. Any changes and variations made by those skilled in the art without departing from the spirit and scope of the present application shall fall within the protection scope of the appended claims of the present application.

Claims

1. A yarn breakage detection device for a ring spinning machine, comprising a drafting machine body (10), characterized in that: A plurality of support rods (11) are arranged on the end surface of the drafting machine body (10), a mounting shell (14) is arranged on the end surface of each of the plurality of support rods (11), a detection shell (15) is arranged on both sides of each of the plurality of mounting shells (14), a detection roller (27) is slidably arranged inside each of the two detection shells (15), the detection roller (27) is capable of detecting the occurrence of yarn breakage, and a yarn breakage protection mechanism is arranged below the detection roller (27) at the inner bottom of the detection shell (15); Two tensioning rollers (24) are slidably arranged on both sides of the detection roller (27) inside the detection housing (15), and the two tensioning rollers (24) can tension the roving; Both ends of the two detection shells (15) are provided with brake shells (16), and a plurality of aggregate rollers (29) capable of emergency braking are rotatably provided between the brake shells (16) and the mounting shells (14). A lower pressing block (30) that can abut against each other is slidably provided on one side of the aggregate roller (29), and an abutting dust suction block (49) is provided on the bottom end face of the lower pressing block (30), and the abutting dust suction block (49) can absorb and clean the fluff and dirt on the surface of the coarse yarn.

2. A yarn breakage detection device for a ring spinning machine according to claim 1, characterized in that: A detachable cleaning shell (17) is arranged on the end surface of each of the detection shells (15), and a sticky roller (18) is rotatably arranged inside each of the cleaning shells (17). The bottom end surface of the cleaning shell (17) is open, and an air pump (20) is arranged on the end surface of the two mounting shells (14), and the air pump (20) is connected to the inside of the cleaning shell (17) through a hose.

3. The yarn breakage detection device for a ring spinning machine according to claim 1, characterized in that: A brake wheel (48) is arranged on one side of the convergent roller (29) inside the brake housing (16), and clamping blocks (31) are arranged on both sides of the brake wheel (48) so as to slide inside the brake housing (16). The two clamping blocks (31) can prevent the brake wheel (48) from rotating, and a second spring (33) in a compressed state is arranged between the two clamping blocks (31) and the inner wall of the brake housing (16).

4. The yarn breakage detection device for a ring spinning machine according to claim 3, characterized in that: The outer surfaces of the two clamping blocks (31) are both provided with a driving plate (34), an elliptical block (35) is rotatably provided between the two driving plates (34), the elliptical block (35) rotatably abuts against the outer surfaces of the two driving plates (34), and a rotating shaft (41) is provided inside the elliptical block (35).

5. The yarn breakage detection device for a ring spinning machine according to claim 4, characterized in that: A cross stopper (36) is arranged outside the rotating shaft (41), and a clamping block (37) is slidably arranged below the cross stopper (36) at the bottom of the brake housing (16). The clamping block (37) abuts against one side of the cross stopper (36). When the coarse yarn breaks, the clamping block (37) will quickly bounce downward and disengage from the cross stopper (36).

6. The yarn breakage detection device for a ring spinning machine according to claim 1, characterized in that: The yarn break protection mechanism comprises a protection shell (28) arranged inside the detection shell (15), a trigger detector (39) is arranged on the end surface of the protection shell (28), an ejector (40) is arranged inside the protection shell (28) on one side of the trigger detector (39), the output end of the ejector (40) extends to the outside of the detection shell (15), and a driving connecting rod (38) is arranged at the output end of the ejector (40), and the driving connecting rod (38) is fixedly connected to two clamping blocks (37).

7. The yarn breakage detection device for a ring spinning machine according to claim 3, characterized in that: The inside of the two brake housings (16) is provided with a fourth slide rail (46), the inside of the fourth slide rail (46) is slidably matched with a slide rod (45), both sides of the slide rod (45) are rotatably provided with drive rollers (47), the outside of the two drive rollers (47) are provided with an extrusion block (44), the two extrusion blocks (44) are respectively fixedly connected to the two clamping blocks (31), and the slide rod (45) is fixedly connected to the lower pressing block (30).

8. The yarn breakage detection device for a ring spinning machine according to claim 1, characterized in that: An air cavity (52) is arranged inside the lower pressing block (30), one end of the air cavity (52) is connected to the vacuum pump (20) through a hose, the bottom of the air cavity (52) is connected to the abutting dust suction block (49), the bottom of the abutting dust suction block (49) is open, and a filter screen (50) is slidably arranged in the opening, and a plurality of rubber particles (51) are arranged on both sides of the filter screen (50) at the bottom end surface of the abutting dust suction block (49).

9. The yarn breakage detection device for a ring spinning machine according to claim 5, characterized in that: A fixed shell (55) is provided on one side of the rotating shaft (41) and outside the brake housing (16), a coil spring (42) is provided inside the fixed shell (55), the coil spring (42) is connected to the rotating shaft (41), and a knob (43) is provided at one end of the rotating shaft (41).

10. The yarn breakage detection device for a ring spinning machine according to claim 1, characterized in that: The exterior of the plurality of brake wheels (48) is provided with a plurality of anti-skid strips (53), the exterior of the clamping block (31) is provided with an anti-skid rough surface (54), and the anti-skid rough surface (54) is provided corresponding to the anti-skid strips (53).

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