Sisal hemp yarn breakage alarm device
By designing a sisal yarn breakage alarm device, the alarm component can detect and trigger the alarm in a timely manner. The device automatically stops the conveying on the broken side when disconnected from the component, which solves the problems of untimely detection and automatic control of sisal yarn breakage in production. This improves production efficiency and safety, and reduces equipment failure and cleaning and repair difficulties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-31
AI Technical Summary
Existing technologies cannot detect sisal yarn breakage in a timely manner and lack an alarm mechanism, leading to production interruptions, equipment damage, and reduced product quality. Furthermore, the inability to automatically stop the conveyor after a breakage increases the difficulty of cleaning and repair, and may cause equipment failure.
A sisal yarn breakage alarm device was designed, comprising an alarm component and a disengagement component. The device utilizes the coordinated action of a telescopic spring, a bracket, a pulley, a guide rod, and a contact spring to promptly detect yarn breakage and trigger an alarm. Simultaneously, the disengagement component, through the coordinated action of a lever, a guide plate, a roller, and a drive wheel, automatically stops the yarn feeding on the broken side.
It enables timely alarms, avoids production delays and equipment failures, improves production efficiency and safety, reduces defective products, lowers the difficulty of cleaning and repair, and ensures the continuity and quality of production.
Smart Images
Figure CN224062203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of yarn breakage detection technology, and in particular to a sisal yarn breakage alarm device. Background Technology
[0002] Sisal yarn, as an important textile raw material, has a wide range of applications in many fields. Sisal fiber has excellent properties such as high strength, wear resistance, and corrosion resistance. Sisal yarn, processed from sisal, not only retains these properties but also has good flexibility and processability. It is often used to make ropes, fishing nets, carpet backing, canvas, and various industrial fabrics. In the production and processing of sisal yarn, continuous and stable yarn conveying is a crucial link. From the initial combing and drawing of sisal fibers to subsequent twisting and winding processes, the yarn needs to be conveyed continuously between various equipment.
[0003] Currently, there is a lack of effective methods for detecting yarn breakage during the sisal yarn conveying process. Due to the inherent properties of sisal yarn and various external forces it may experience during transport, such as friction and tension changes, yarn breakage is highly likely. However, existing technologies struggle to detect breakage promptly and accurately during this process. Breakage is often only detected later in production or during manual inspections. This not only leads to production interruptions and reduced efficiency but can also damage equipment due to delayed handling, increasing maintenance costs and downtime. Furthermore, current technologies cannot promptly issue alarm signals when yarn breaks occur, resulting in a lack of timely reporting. The lack of a proper alarm mechanism prevents operators from quickly recognizing yarn breaks and taking immediate action, hindering timely resolution of the problem. This further expands the impact of production accidents, leading to a large number of defective products and reducing overall product quality. Furthermore, existing yarn conveying systems cannot automatically stop conveying yarn on the broken side after a break. If the conveying system continues to operate, the yarn at the break point will become looser and more tangled, increasing the difficulty of subsequent cleaning and repair and potentially causing more serious equipment malfunctions, such as yarn getting tangled in transmission components and causing equipment jamming. This seriously threatens the safety and stability of production.
[0004] Furthermore, we disclose a sisal yarn breakage alarm device to solve the problems in the prior art where sisal yarn breakage cannot be detected in time during transportation, there is a lack of timely alarm mechanism, and the transportation cannot be automatically stopped after a breakage. Utility Model Content
[0005] In view of this, the purpose of this utility model is to propose a sisal yarn breakage alarm device to solve the problems in the prior art that sisal yarn breakage cannot be detected in time during transportation, lacks a timely alarm mechanism, and cannot be automatically controlled to stop transportation after a breakage.
[0006] Based on the above objectives, this utility model provides a sisal yarn breakage alarm device, including a base. Two second support seats are fixedly connected to both ends of one side of the upper surface of the base. A follower shaft is rotatably connected between the upper ends of the two second support seats. Multiple follower wheels are fixedly connected at even intervals to the outer wall of the follower shaft. A drive rod is rotatably connected to the middle of the two second support seats. Multiple drive wheels are evenly spaced on the outer wall of the drive rod, the number of drive wheels being the same as the number of follower wheels. A servo motor is located in the middle of one side of the end face of one of the second support seats. The output end of the servo motor is fixedly connected to the drive rod. The servo motor drives the drive rod to rotate, which in turn drives the drive wheel to complete the conveying of the sisal yarn. An alarm component is located in the middle of the upper surface of the base. The alarm component is used to detect whether the sisal yarn has broken and to issue an alarm in a timely manner. A disengagement component is located on one side of the alarm component. When the alarm component detects a break in the sisal yarn, it can activate the disengagement component, which is used to cancel the conveying of the sisal yarn by the drive wheel.
[0007] Preferably, the upper end face of the base is fixedly connected to two first support seats on the side away from the second support seat, and two rotating shafts are rotatably connected between the two first support seats in a vertically distributed manner. Multiple limiting wheels are fixedly connected to the outer walls of the two rotating shafts at intervals.
[0008] Preferably, the alarm component includes multiple telescopic springs fixedly connected to the middle of the upper surface of the base. The number of telescopic springs corresponds to the number of drive wheels. The upper end of each telescopic spring is fixedly connected to a bracket, and the upper end of the bracket is rotatably connected to a pulley. The upper end of the outer wall of the pulley is in contact with sisal yarn.
[0009] Preferably, a guide rod is fixedly connected to the lower middle part of the side wall of the bracket, the lower end of the guide rod passes through the base, and the outer wall of the lower end of the guide rod is provided with a conductive coating. Electrical contact springs are fixedly connected to both sides of the upper end surface of the base located on the guide rod. An alarm is provided on one side of the middle part of the upper end surface of the base, and the electrical contact spring is electrically connected to the alarm.
[0010] Preferably, the disengagement assembly includes a rotating rod that is rotatably connected to the middle of the upper surface of the base away from the alarm. The number of rotating rods is the same as the number of drive wheels. A lever is fixedly connected to the upper end of the rotating rod. A guide plate is fixedly connected to the side of the lever near the bracket. The guide plate is designed to be inclined. A first rotating wheel is rotatably connected to the lower middle of the side wall of the bracket away from the guide rod. The outer wall of the first rotating wheel is in contact with the guide plate.
[0011] Preferably, the end of the lever away from the guide plate is located on the lower side of the drive wheel, and the end of the lever away from the follower wheel is rotatably connected to a second roller, the outer wall of the second roller being in contact with the keyway.
[0012] Preferably, the outer wall of the drive rod is fixedly connected with multiple sets of spline blocks at uniform intervals, the inner wall of the drive wheel is provided with multiple keyways at uniform intervals, the spline blocks are slidably connected to the keyways, the outer wall of the drive rod is rotatably connected with multiple locking plates at uniform intervals, and the upper and lower ends of the end face of the locking plate near the drive wheel are fixedly connected with return springs, and the side of the return spring away from the locking plate is fixedly connected to the drive wheel.
[0013] The beneficial effects of this utility model are:
[0014] 1. Existing sisal yarn conveying technology suffers from the inability to detect yarn breaks in a timely manner and the lack of a timely alarm mechanism. This leads to numerous problems such as production interruptions, equipment damage, and reduced product quality. The alarm component in this device effectively solves these shortcomings. Utilizing the synergistic effect of a telescopic spring, bracket, pulley, guide rod, and contact spring, the alarm component can quickly detect and trigger an alarm when a sisal yarn breaks. It can promptly detect the breakage, allowing operators to be informed of the breakage immediately, avoiding production delays and equipment malfunctions caused by yarn breaks, thus improving production efficiency and equipment safety. At the same time, timely alarms also help reduce defective products caused by yarn breaks, ensuring the quality of sisal yarn production.
[0015] 2. Existing sisal yarn conveying technology cannot automatically stop the conveying of yarn on the broken side after a yarn breakage. This leads to further loosening and tangling of the yarn at the break point, increasing the difficulty of cleaning and repair, and may even cause more serious equipment failures. The detachment component in this device effectively solves this defect. The detachment component works closely with the alarm component. When the alarm component detects a yarn breakage, the detachment component quickly acts. Through the coordinated action of components such as the lever, guide plate, second roller, drive wheel, and spline block, the drive wheel on the broken side is disengaged from the drive rod, and the conveying of yarn on that side is stopped in time. This can prevent further deterioration of the yarn at the break point, reduce the difficulty of cleaning and repair, reduce the occurrence of equipment failures, and improve the safety and stability of sisal yarn production. At the same time, the normal conveying of the unbroken yarn also ensures the continuity and efficiency of production. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in this utility model 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a partial three-dimensional structural diagram of the present invention;
[0019] Figure 3 This is a three-dimensional structural diagram of the alarm component of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the detachable component of this utility model;
[0021] Figure 5 This is a schematic diagram of the three-dimensional internal structure of the detachable component of this utility model.
[0022] Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0023] The diagram is marked as follows:
[0024] 1. Base; 2. Alarm; 3. First support base; 4. Rotating shaft; 5. Limiting wheel; 6. Pulley; 7. Bracket; 8. Follower shaft; 9. Follower wheel; 10. Second support base; 11. Servo motor; 12. Lever; 13. Rotating rod; 14. Telescopic spring; 15. Guide rod; 16. Drive wheel; 17. Drive rod; 18. Electrical contact spring; 19. Guide plate; 20. First rotating wheel; 21. Conductive coating; 22. Clamping plate; 23. Return spring; 24. Second roller; 25. Spline block; 26. Keyway. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0027] like Figures 1 to 6 As shown, a sisal yarn breakage alarm device includes a base 1. Two second support seats 10 are fixedly connected to both ends of one side of the upper surface of the base 1. A follower shaft 8 is rotatably connected between the upper ends of the two second support seats 10. Multiple follower wheels 9 are evenly spaced and fixedly connected to the outer wall of the follower shaft 8. A drive rod 17 is rotatably connected to the middle of the two second support seats 10. Multiple drive wheels 16 are evenly spaced on the outer wall of the drive rod 17, with the number of drive wheels 16 being the same as the number of follower wheels 9. A servo motor 11 is located in the middle of one side of the second support seat 10. The output end of the servo motor 11 is fixedly connected to the drive rod 17. The servo motor 11 drives the drive rod 17 to rotate, which in turn drives the drive wheels 16 to complete the conveying of the sisal yarn. An alarm component is located in the middle of the upper surface of the base 1. The alarm component is used to detect whether the sisal yarn has broken and to issue an alarm in a timely manner. A disengagement component is located on one side of the alarm component. When the alarm component detects a break in the sisal yarn, it can activate the disengagement component to cancel the conveying of the sisal yarn by the drive wheels 16.
[0028] This device effectively solves many of the shortcomings of existing sisal yarn conveying technology. Existing sisal yarn conveying technology has problems such as the inability to detect yarn breakage in a timely manner, the lack of a timely alarm mechanism, and the inability to automatically control the conveying to stop after a yarn breakage. This can lead to production interruptions, equipment damage, reduced product quality, loose and tangled yarn at the breakage point, increased difficulty in cleaning and repair, and more serious equipment failures. The alarm component of this device utilizes the coordinated action of the telescopic spring 14, bracket 7, pulley 6, guide rod 15, and contact spring 18 to promptly detect thread breakage and trigger an alarm, allowing operators to be informed of the breakage immediately. This avoids production delays and equipment malfunctions, improves production efficiency and equipment safety, reduces defective products, and ensures production quality. The disengagement component works closely with the alarm component, rapidly activating upon detecting a thread breakage. Through the coordinated action of components such as the lever 12, guide plate 19, second roller 24, drive wheel 16, and spline block 25, it disengages the drive wheel 16 on the broken side from the drive rod 17, stopping the yarn transport on that side. This prevents yarn deterioration at the breakage point, reduces cleaning and repair difficulty, minimizes equipment malfunctions, and improves production safety and stability. Simultaneously, it ensures the normal transport of unbroken yarn, maintaining production continuity and efficiency.
[0029] Furthermore, such as Figures 1 to 2 As shown, the upper end face of the base 1 is fixedly connected to both ends of the side away from the second support seat 10. The two first support seats 3 are rotatably connected to each other in a vertically distributed manner. The outer walls of the two rotating shafts 4 are fixedly connected with multiple limiting wheels 5 at intervals.
[0030] The setting of the limiting wheel 5 can guide the conveying path of the sisal yarn. During the process of the sisal yarn being transferred from the conveying area composed of the drive wheel 16 and the follower wheel 9 to other subsequent processes, the limiting wheel 5 can ensure that the yarn runs along the predetermined trajectory, avoid the yarn from deviating or running around during the conveying process, and ensure the smoothness and stability of the yarn conveying.
[0031] Furthermore, such as Figures 1 to 3 As shown, the alarm assembly includes multiple telescopic springs 14 fixedly connected to the middle of the upper surface of the base 1. The number of telescopic springs 14 corresponds to the number of drive wheels 16. A bracket 7 is fixedly connected to the upper end of the telescopic spring 14. A pulley 6 is rotatably connected to the upper end of the bracket 7. The upper end of the outer wall of the pulley 6 is in contact with the sisal yarn. A guide rod 15 is fixedly connected to the middle of the lower end of the side wall of the bracket 7. The lower end of the guide rod 15 passes through the base 1. A conductive coating 21 is provided on the outer wall of the lower end of the guide rod 15. Electrical contact springs 18 are fixedly connected to both sides of the upper surface of the base 1 on the guide rod 15. An alarm 2 is provided on one side of the middle of the upper surface of the base 1. The electrical contact springs 18 are electrically connected to the alarm 2.
[0032] When the sisal yarn is being conveyed normally, the sisal yarn exerts a downward force on the pulley 6. This force overcomes the elasticity of the telescopic spring 14, causing the telescopic spring 14 to be in a compressed state. The bracket 7 is held in a certain position under the action of the yarn. At this time, the conductive coating 21 at the lower end of the guide rod 15 is separated from the contact spring 18 on the base 1. The alarm 2 is not connected to the circuit and does not issue an alarm signal. When the sisal yarn breaks, the downward force originally exerted by the yarn on the pulley 6 disappears. The telescopic spring 14 rebounds upward under its own elasticity, causing the bracket 7 to move upward, which in turn causes the guide rod 15 to move upward as well. The conductive coating 21 at the lower end of the guide rod 15 comes into contact with the contact spring 18, connecting the alarm 2 to the circuit. The alarm 2 immediately issues an alarm signal to remind the operator that the sisal yarn has broken.
[0033] Furthermore, such as Figures 1 to 6 As shown, the disengagement assembly includes a rotating rod 13 that is rotatably connected to the middle of the upper surface of the base 1, away from the alarm 2. The number of rotating rods 13 is the same as the number of drive wheels 16. A lever 12 is fixedly connected to the upper end of the rotating rod 13. A guide plate 19 is fixedly connected to the side of the lever 12 near the bracket 7. The guide plate 19 is designed to be inclined. A first rotating wheel 20 is rotatably connected to the lower middle of the side wall of the bracket 7 away from the guide rod 15. The outer wall of the first rotating wheel 20 is in contact with the guide plate 19. The end of the lever 12 away from the guide plate 19 is located on the lower side of the drive wheel 16, and the lever... The end of rod 12 away from follower wheel 9 is rotatably connected to a second roller 24. The outer wall of the second roller 24 contacts the keyway 26. Multiple sets of spline blocks 25 are fixedly connected to the outer wall of drive rod 17 at even intervals. Multiple keyways 26 are evenly spaced on the inner wall of drive wheel 16. The spline blocks 25 are slidably connected to the keyways 26. Multiple locking plates 22 are evenly spaced and rotatably connected to the outer wall of drive rod 17. The upper and lower ends of the locking plate 22 are fixedly connected to the side of the end face near drive wheel 16. The side of the locking plate 23 away from the locking plate 22 is fixedly connected to drive wheel 16.
[0034] During normal sisal yarn feeding, the telescopic spring 14 is compressed, the bracket 7 is fixed, the first rotating wheel 20 is in contact with the guide plate 19 but there is no relative movement, the lever 12 is in its initial position, the second roller 24 is in contact with the drive wheel 16 but does not affect the drive wheel 16 from rotating with the drive rod 17, the drive wheel 16 is slidably connected to the spline block 25 on the outer wall of the drive rod 17 through the inner wall groove, normally driving the sisal yarn feeding. When the alarm component detects a broken sisal yarn, the telescopic spring 14 rebounds upward, causing the bracket 7 to move upward, the first rotating wheel 20 rolls along the inclined guide plate 19, and the guide lever 12 rotates around the rotating rod 17. 3. Rotation of lever 12 causes the second roller 24 to apply force to the drive wheel 16, pushing the drive wheel 16 to move to one side on the drive rod 17. After the drive wheel 16 moves a certain distance, its internal groove will disengage from the spline block 25. At this time, when the drive rod 17 continues to rotate, since the drive wheel 16 has disengaged from the spline block 25, the drive wheel 16 will no longer rotate with the drive rod 17, thus canceling the conveying work of the drive wheel 16 on the broken side of the sisal yarn. The drive wheel 16 corresponding to the unbroken yarn can still carry out the conveying work through the normal connection between the spline block 25 and the drive rod 17.
[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0036] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A sisal yarn breakage alarm device characterized by: The utility model provides a sword -thorn hemp yarn conveying device, including the base (1), the upper end surface one side both ends of base (1) are fixedly connected with second support seat (10), and the upper end rotationally connected with follow -up shaft (8) between two second support seat (10), the outer wall of follow -up shaft (8) evenly spaced fixedly connected with a plurality of follow -up wheel (9), and the middle rotationally connected with drive link (17) of two second support seat (10), the outer wall of drive link (17) evenly spaced is provided with a plurality of drive wheel (16), and the number of drive wheel (16) is same with follow -up wheel (9), and one side second support seat (10) one side end surface middle part is provided with servo motor (11), and the output of servo motor (11) is fixedly connected with drive link (17), and servo motor (11) drives drive link (17) to rotate and can drive drive wheel (16) to complete the conveying work of sword -thorn hemp yarn, and the upper end surface middle part of base (1) is provided with alarm assembly, and alarm assembly is used to detect whether sword -thorn hemp yarn breaks and timely alarm work, and one side of alarm assembly is provided with the disengaging subassembly, and when alarm assembly detects that sword -thorn hemp yarn breaks, can drive disengaging subassembly, and the disengaging subassembly is used to cancel the conveying work of drive wheel (16) to sword -thorn hemp yarn.
2. A sisal yarn breakage alarm device according to claim 1, characterized in that: The upper end surface of the base (1) is fixedly connected with a first support seat (3) on both sides away from the second support seat (10), and two rotating shafts (4) are rotationally connected between the two first support seats (3) in an up-down distribution. The outer wall of the two rotating shafts (4) is fixedly connected with a plurality of limiting wheels (5) at intervals.
3. A sisal yarn breakage alarm device as claimed in claim 1, wherein: The alarm assembly includes a plurality of extension springs (14) fixedly connected to the middle part of the upper end surface of the base (1). The number of the extension springs (14) corresponds to the number of the drive wheels (16). The upper end of each extension spring (14) is fixedly connected with a bracket (7). The upper end of the bracket (7) is rotationally connected with a pulley (6). The outer wall of the pulley (6) is in contact with the sword -thorn hemp yarn at the upper end.
4. A sisal yarn breakage alarm device according to claim 3, characterized in that: The side wall of the bracket (7) is fixedly connected with a guide rod (15) at the middle part of the lower end. The lower end of the guide rod (15) penetrates the base (1). The lower end of the guide rod (15) is provided with a conductive coating (21) on the outer wall. The upper end surface of the base (1) is fixedly connected with a power contact spring (18) on both sides of the guide rod (15). The upper end surface of the base (1) is provided with an alarm (2) on one side. The power contact spring (18) is electrically connected with the alarm (2).
5. A sisal yarn breakage alarm device according to claim 4, characterised in that: The disengaging subassembly includes a rotating shaft (13) rotationally connected to the middle part of the upper end surface of the base (1) away from the alarm (2) on one side. The number of the rotating shaft (13) is the same as the number of the drive wheels (16). The upper end of the rotating shaft (13) is fixedly connected with a lever (12). The lever (12) is fixedly connected with a guide plate (19) on the side close to the bracket (7). The guide plate (19) is designed to be inclined. The side wall of the bracket (7) is rotationally connected with a first rotating wheel (20) at the middle part of the lower end away from the guide rod (15). The outer wall of the first rotating wheel (20) is in contact with the guide plate (19).
6. A sisal yarn breakage alarm device according to claim 5, characterised in that: The end of the dialing rod (12) away from the guide plate (19) is located at the side of the lower end of the driving wheel (16), and the end of the dialing rod (12) away from the follower wheel (9) is rotationally connected with a second roller (24), and the outer wall of the second roller (24) is in contact with the key groove (26).
7. A sisal yarn breakage alarm device according to claim 6, characterised in that: The outer wall of the driving rod (17) is uniformly and spacedly fixedly connected with a plurality of groups of spline blocks (25), the inner wall of the driving wheel (16) is uniformly and spacedly provided with a plurality of key grooves (26), the spline blocks (25) are in sliding connection with the key grooves (26), the outer wall of the driving rod (17) is uniformly and spacedly clampingly and rotationally connected with a plurality of clamping plates (22), the side end face of the clamping plate (22) close to the driving wheel (16) is fixedly connected with reset springs (23) at the upper end and the lower end, and the side of the reset spring (23) away from the clamping plate (22) is fixedly connected with the driving wheel (16).