A bad tube detection and alarm device for a ring spinning frame

Abstract

The present invention relates to the field of broken tube alarm devices for spinning frames, and discloses a broken tube detection and alarm device for a spinning frame, which includes a motor, a partition board, and a wire loop installed on the spinning frame. A winding yarn tube for winding yarn is installed on the output shaft of the motor. The partition boards are symmetrically installed on both sides of the winding yarn tube. A wire loop is arranged between every two adjacent partition boards. The yarn passes through the wire loop and winds on the surface of the winding yarn tube. A Hall sensor is arranged near the connecting shaft of the motor, and an induction magnetic sheet is arranged inside the output shaft of the motor. In the present invention, through the design of the overload protection part and the secondary alarm part, a mechanical protection and alarm mechanism is provided for the yarn tube. When the force on the yarn tube is abnormal, a sound alarm can be issued in time to remind the staff to take measures to avoid the yarn tube from breaking or being damaged due to continuous overload. At the same time, the overload protection part can buffer and disperse the abnormal tension to a certain extent, reduce the damage degree of the yarn tube, and extend the service life of the yarn tube.

Description

Technical Field

[0001] The present invention relates to the field of bad tube alarm devices for spinning frames, and specifically to a bad tube detection and alarm device for spinning frames. Background Art

[0002] The spinning frame is a key device in textile production for drafting, twisting, and winding roving or sliver into fine yarn tube yarns. In modern textile production, the efficient operation of the spinning frame is crucial for improving production efficiency and ensuring product quality. However, various faults are likely to occur during the operation of the spinning frame, and among them, the damage of the yarn tube (such as yarn tube breakage, deformation, or blockage) is one of the common problems. The damage of the yarn tube not only causes the yarn to break, but may also lead to equipment failures and even affect the operation efficiency of the entire production line.

[0003] Traditional fault detection of spinning frames mainly relies on manual inspections and simple mechanical detection devices. For example, by installing a yarn break detection mechanism and an alarm on each spindle, an alarm is issued when the yarn is too tight and breaks. However, the mechanical detection device can only detect obvious yarn breaks, and the alarm device cannot slow down the rotation speed of the yarn tube or has a force unloading component, making the yarn tube too tight and breaking during continuous rotation. Summary of the Invention

[0004] The present invention provides a bad tube detection and alarm device for a spinning frame, which overcomes the deficiencies described in the background art.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0006] A bad tube detection and alarm device for a spinning frame includes a motor, a partition board, and a wire loop installed on the spinning frame. A winding yarn tube for winding yarn is installed on the output shaft of the motor. The partition boards are symmetrically installed on both sides of the winding yarn tube. A wire loop is provided between every two adjacent partition boards. The yarn passes through the wire loop and winds around the surface of the winding yarn tube. A Hall sensor is provided near the connecting shaft of the motor. An induction magnetic sheet is provided inside the output shaft of the motor. An induction part for inducing the induction magnetic sheet is provided at the corresponding position inside the Hall sensor. When the induction magnetic sheet rotates to be close to the induction part, the rotation speed of the output shaft of the motor is determined by inducing the induction magnetic sheet through the induction part;

[0007] The output shaft of the motor is provided with a minimum rotation speed threshold. When the rotation speed of the output shaft of the motor is lower than the minimum rotation speed threshold, the Hall sensor emits an alarm signal;

[0008] The winding yarn tube includes a yarn tube, a sleeve, an overload protection part, and a secondary alarm part. The overload protection part is connected to the output shaft of the motor. The yarn tube is sleeved outside the sleeve. The overload protection part is inserted into the sleeve from the lower side. The overload protection part abuts against the sleeve through the secondary alarm part provided at its upper end;

[0009] The secondary alarm component includes a force - releasing alarm wheel composed of a rotary cap, a connecting button, and a tightening component. The force - releasing alarm wheel is arranged at the upper end of the overload protection component. The rotary cap is sleeved outside the connecting button, and the rotary cap and the connecting button are connected by the tightening component. The rotary cap is internally arrayed with first inclined blocks, and the connecting button is internally arrayed with second inclined blocks. The first inclined blocks and the second inclined blocks face in opposite directions. When the tightening component tightens, the rotary cap and the connecting button approach each other. When the rotary cap is forced to rotate, the inclined surfaces of the first inclined blocks and the second inclined blocks are squeezed, and the rotary cap and the connecting button are forced to move away from each other.

[0010] When the rotary cap rotates to a position where the first inclined blocks do not abut against the second inclined blocks, the rotary cap and the connecting button will approach each other and produce an impact to make a sound for alarm.

[0011] In a preferred technical solution, a first clamping groove is provided inside the yarn bobbin tube, and a first protruding strip that fits into the first clamping groove is provided on the sleeve. An outward - protruding second protruding strip is provided at the upper end inside the sleeve. A second clamping groove corresponding to the second protruding strip is provided on the surface of the force - releasing alarm wheel. When the sleeve is sleeved outside the overload protection component, the second protruding strip fits into the second clamping groove.

[0012] Both the first inclined blocks and the second inclined blocks are made of metal, and their adjacent surfaces are both flat - shaped structures. The inclined surface of the second inclined block faces in a direction opposite to the direction of yarn winding of the yarn bobbin tube. When the sleeve installed on the output shaft of the motor drives the connecting button to rotate, the second inclined block can push the rotary cap and the yarn bobbin tube sleeved outside the rotary cap to rotate and wind the yarn through the first inclined block.

[0013] In a preferred technical solution, the tightening component includes a spring and bead balls symmetrically arranged at the upper and lower ends of the spring. Spherical grooves are provided on the adjacent surfaces of the rotary cap and the connecting button, and both bead balls are embedded in the spherical grooves adjacent to them.

[0014] The inner diameter of the port of the spherical groove is smaller than the outer diameter of the bead ball. The bead balls are movably installed in the spherical grooves, and both bead balls are connected to the spring. When the spring contracts, the rotary cap and the connecting button are pulled by the bead balls on both sides, and an impact is generated after the rotary cap and the connecting button gradually approach each other, making a sound for alarm.

[0015] In a preferred technical solution, the overload protection component includes force - releasing torsion strips arranged in an array. The force - releasing torsion strip includes a rubber sheet. The rubber sheet is respectively connected to the output shaft of the motor and the force - releasing alarm wheel through connecting pieces provided at both ends of it. The thickness of the connecting piece is greater than the thickness of the rubber sheet, and a plurality of force - receiving strip - shaped grooves are arrayed on the surface of the rubber sheet.

[0016] The force - releasing torsion strips are not connected to each other, and there is an included angle between two adjacent force - releasing torsion strips.

[0017] When the rotational speed of the force - releasing alarm wheel is not equal to the rotational speed of the output shaft of the motor, the overload protection component will twist in the opposite direction of the force.

[0018] Compared with the prior art, the present technical solution has the following advantages:

[0019] In the present invention, through the design of the overload protection member and the secondary alarm member, a mechanical protection and alarm mechanism is provided for the yarn bobbin. When the yarn bobbin is under abnormal stress, a sound alarm can be issued in a timely manner to remind the staff to take measures to avoid the yarn bobbin from breaking or being damaged due to continuous overload. At the same time, the overload protection member can buffer and disperse the abnormal tension to a certain extent, reduce the damage degree of the yarn bobbin, and extend the service life of the yarn bobbin. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the drawings and embodiments.

[0021] Figure 1 It is the overall view of the present invention.

[0022] Figure 2 It is Figure 1 a perspective view.

[0023] Figure 3 It is a half-sectional schematic view of the winding yarn bobbin and the partition plate.

[0024] Figure 4 It is a structural schematic view of the motor and the Hall sensor.

[0025] Figure 5 It is a half-sectional schematic view of the winding yarn bobbin.

[0026] Figure 6 It is Figure 5 an enlarged schematic view at a.

[0027] Figure 7 It is a half-sectional structural schematic view of the sleeve.

[0028] Figure 8 It is a structural schematic view of the overload protection member.

[0029] Figure 9 It is a half-sectional schematic view of the force-relieving alarm wheel.

[0030] Figure 10 It is Figure 9 an explosion schematic view.

[0031] Figure 11 It is a schematic view of the tightening member.

[0032] Figure 12 It is Figure 10 an enlarged schematic view at b.

[0033] In the figure: winding bobbin 1, yarn bobbin 11, slot 1 111, sleeve 12, convex strip 1 121, convex strip 2 122, overload protection member 13, force unloading alarm wheel 131, rotary cover 1311, inclined block 1 3111, slot 2 3112, connecting button 1312, inclined block 2 3121, tightening member 1313, spring 3131, card bead 3132, force unloading twist strip 132, connecting sheet 1321, rubber sheet 1322, force strip groove 1323, spherical groove 101;

[0034] Motor 2, induction magnetic sheet 21;

[0035] Partition 3;

[0036] Wire loop 4;

[0037] Hall sensor 5 and sensing unit 51 . DETAILED DESCRIPTION

[0038] like Figures 1 to 12 As shown, the present invention proposes a spinning frame broken tube detection alarm device, comprising a motor 2, a partition 3 and a wire ring 4 installed on the spinning frame, a winding tube 1 for winding yarn is installed on the output shaft of the motor 2, the partition 3 is symmetrically installed on both sides of the winding tube 1, a wire ring 4 is arranged between every two adjacent partitions 3, the yarn passes through the wire ring 4 and is wound on the surface of the winding tube 1, a Hall sensor 5 is arranged near the connecting shaft of the motor 2, an induction magnetic sheet 21 is arranged in the output shaft of the motor 2, and a corresponding position of the Hall sensor 5 and the induction magnetic sheet 21 is arranged. The sensing portion 51 is used to sense the induction magnetic sheet 21. When the induction magnetic sheet 21 rotates close to the sensing portion 51, the rotation speed of the output shaft of the motor 2 is determined by sensing the induction magnetic sheet 21 through the sensing portion 51. The output shaft of the motor 2 is provided with a minimum rotation speed threshold. When the rotation speed of the output shaft of the motor 2 is lower than the minimum rotation speed threshold, the Hall sensor 5 sends an alarm signal. When the output shaft of the motor rotates, the induction magnetic sheet 21 rotates accordingly. When it is close to the sensing portion 51, the Hall sensor 5 senses the change in the magnetic field of the induction magnetic sheet 21 through the sensing portion 51, thereby determining the rotation speed of the output shaft of the motor.

[0039] The output shaft of the motor is provided with a minimum rotation speed threshold. Since the rotation speed of the output shaft of the motor 2 is fixed, when the yarn wound around the yarn tube 11 is tightened or has abnormal tension due to objective reasons, after the output shaft of the motor 2 is stressed, the load of its rotation will increase, thereby reducing the rotation speed of the output shaft of the motor 2. When the rotation speed is lower than this threshold, it indicates that the yarn tube may be abnormal, such as being blocked, broken, etc. The Hall sensor 5 will immediately send out an alarm signal to remind the staff to deal with it in time. This technical solution can monitor the rotation speed of the output shaft of the motor in real time, thereby indirectly reflecting the operating state of the yarn tube. By setting the minimum rotation speed threshold, abnormal conditions of the yarn tube can be detected in time, avoiding problems such as yarn breakage and equipment failure caused by damaged yarn tubes, reducing downtime, and improving production efficiency and product quality.

[0040] Among them, the winding yarn tube 1 includes a yarn tube 11, a sleeve 12, an overload protection member 13 and a secondary alarm member. The overload protection member 13 is connected to the output shaft of the motor 2. The yarn tube 11 is sleeved outside the sleeve 12. The overload protection member 13 is inserted into the sleeve 12 from the lower side. The overload protection member 13 abuts against the sleeve 12 through the secondary alarm member provided at its upper end. The secondary alarm member includes a force-relieving alarm wheel 131 composed of a rotary cap 1311, a connecting button 1312 and a tightening member 1313. The force-relieving alarm wheel 131 is arranged at the upper end of the overload protection member 13. The rotary cap 1311 is sleeved outside the connecting button 1312. The rotary cap 1311 and the connecting button 1312 are connected by the tightening member 1313. The rotary cap 1311 is internally provided with a first inclined surface block 3111 in an array. The connecting button 1312 is internally provided with a second inclined surface block 3121 in an array. The first inclined surface block 3111 and the second inclined surface block 3121 face in opposite directions. When the tightening member 1313 is tightened, the rotary cap 1311 and the connecting button 1312 approach each other. When the rotary cap 1311 is stressed and rotates, the inclined surfaces of the first inclined surface block 3111 and the second inclined surface block 3121 are squeezed, and the rotary cap 1311 and the connecting button 1312 are forced to move away from each other. When the rotary cap 1311 rotates to a position where the first inclined surface block 3111 does not abut against the second inclined surface block 3121, the rotary cap 1311 and the connecting button 1312 will approach each other and produce an impact to make a sound for alarm;

[0041] When the bobbin is running normally, the screw cap 1311 and the connection button 1312 are kept tightly connected by the tightening member 1313. If the bobbin is subjected to abnormal tension or overload, the screw cap 1311 rotates under force, and the inclined surface of the first inclined surface block 3111 inside it is squeezed against the inclined surface of the second inclined surface block 3121 inside the connection button 1312, causing the screw cap 1311 and the connection button 1312 to move away from each other under force. When the screw cap 1311 rotates to the point where the first inclined surface block 3111 no longer abuts against the second inclined surface block 3121, the two approach each other again and collide, emitting an audible alarm to remind the staff that the bobbin may be overloaded or damaged. This technical solution provides a mechanical protection and alarm mechanism for the bobbin through the design of the overload protection member and the secondary alarm member. When the bobbin is subjected to abnormal force, it can emit an audible alarm in a timely manner to remind the staff to take measures to prevent the bobbin from breaking or being damaged due to continuous overload. At the same time, the overload protection member can buffer and disperse the abnormal tension to a certain extent, reduce the damage degree of the bobbin, extend the service life of the bobbin, and reduce production costs. In addition, this mechanical alarm device has a simple structure, high reliability, is not easily affected by external interference, and is suitable for various complex production environments.

[0042] In a preferred technical solution, a first clamping groove 111 is provided inside the yarn tube 11, and a first rib 121 that fits into the first clamping groove 111 is provided on the sleeve 12. An outwardly protruding second rib 122 is provided at the upper end inside the sleeve 12. A second clamping groove 3112 corresponding to the second rib 122 is provided on the surface of the unloading alarm wheel 131. When the sleeve 12 is sleeved outside the overload protection member 13, the second rib 122 fits into the second clamping groove 3112. This cooperation between the clamping groove and the rib makes the sleeve 12 and the yarn tube 11 tightly connected, effectively preventing relative displacement between the two during operation. At the same time, the second rib 122 at the upper end inside the sleeve 12 corresponds to the second clamping groove 3112 on the surface of the unloading alarm wheel 131. When the sleeve 12 is sleeved outside the overload protection member 13, the second rib 122 fits into the second clamping groove 3112, further enhancing the structural stability of the entire device. This structural design ensures that during the yarn winding process, all components can cooperate closely, reducing faults caused by component loosening or falling off.

[0043] The inclined plane block 1 (3111) and the inclined plane block 2 (3121) are both made of metal, and their adjacent surfaces are both flat structures. The inclined surface of the inclined plane block 2 (3121) faces in the direction opposite to the direction of the yarn winding of the yarn tube 11. When the connecting button 1312 is driven to rotate by the sleeve 12 installed on the output shaft of the motor 2, the inclined plane block 2 (3121) can push the rotary cap 1311 and the yarn tube 11 sleeved outside the rotary cap 1311 to rotate and wind the yarn through the inclined plane block 1 (3111). When the sleeve 12 rotates driven by the motor 2, the inclined plane block 2 (3121) pushes the rotary cap 1311 and the yarn tube 11 sleeved outside the rotary cap 1311 to rotate through the inclined plane block 1 (3111), thereby realizing the winding of the yarn. This design utilizes the mechanical principle of the inclined plane. During normal operation, the interaction between the inclined plane blocks can efficiently transmit power to ensure the smooth winding of the yarn. At the same time, when the yarn tube 11 is subjected to abnormal tension, the interaction between the inclined plane blocks will trigger the protection mechanism of the unloading alarm wheel 131 to prevent the yarn tube from being damaged due to overload.

[0044] Further, the tightening member 1313 includes a spring 3131 and bead 3132 symmetrically arranged at the upper and lower ends of the spring 3131. Spherical grooves 101 are provided on the adjacent surfaces of the rotary cap 1311 and the connecting button 1312, and the two beads 3132 are both embedded in the adjacent spherical grooves 101.

[0045] The inner diameter of the port of the spherical groove 101 is smaller than the outer diameter of the bead 3132. The bead 3132 is movably installed in the spherical groove 101, and the two beads 3132 are both connected to the spring 3131. When the spring 3131 contracts, the rotary cap 1311 and the connecting button 1312 are pulled by the beads 3132 on both sides, and a collision occurs after the rotary cap 1311 and the connecting button 1312 gradually approach, emitting a sound for alarm. This technical solution realizes a rapid response to the overload state of the yarn tube through the structural design of the spring 3131 and the bead 3132. When the yarn tube or the yarn is subjected to abnormal tension, the interaction of the inclined plane blocks and the release of the elastic potential energy of the spring can quickly trigger an alarm to remind the operator to handle it in time. This design can immediately issue an alarm when the yarn or the yarn tube appears abnormal, avoiding damage to the yarn tube, breakage of the yarn or equipment failure caused by overload, reducing downtime and maintenance costs. At the same time, the buffering effect of the spring and the bead can effectively protect the equipment and extend the service life of the equipment. This technical solution adopts the mechanical structure of the spring and the bead to realize the overload protection and alarm functions through simple physical principles. The design of the spherical groove 101 ensures the stable embedding and movement of the bead 3132, while the spring 3131 provides reliable elastic buffering.

[0046] A preferred technical solution is that the overload protection member 13 includes force-relieving torsion strips 132 arranged in an array. The force-relieving torsion strips 132 include rubber sheets 1322. The rubber sheets 1322 are respectively connected to the output shaft of the motor 2 and the force-relieving alarm wheel 131 through connecting pieces 1321 provided at both ends thereof. The thickness of the connecting piece 1321 is greater than that of the rubber sheet 1322. And a plurality of force-bearing strip-shaped grooves 1323 are arrayed on the surface of the rubber sheet 1322. The force-relieving torsion strips 132 are not connected to each other, and there is a gap between two adjacent force-relieving torsion strips 132. When the rotational speed of the force-relieving alarm wheel 131 is not equal to the rotational speed of the output shaft of the motor 2, the overload protection member 13 will twist in the opposite direction of the force. During normal operation, the output shaft of the motor 2 drives the force-relieving alarm wheel 131 to rotate. The force-relieving torsion strips 132 rotate synchronously with the output shaft of the motor and the force-relieving alarm wheel 131 through the connecting pieces 1321. The elastic characteristics of the rubber sheet 1322 ensure the smoothness of the transmission. At the same time, the force-bearing strip-shaped grooves 1323 can effectively disperse the force and reduce local stress concentration. When an abnormality occurs in the bobbin or yarn, resulting in the rotational speed of the force-relieving alarm wheel 131 not being equal to the rotational speed of the output shaft of the motor 2, the force-relieving torsion strips 132 will be subjected to an additional torque. Due to the elastic characteristics of the rubber sheet 1322, the force-relieving torsion strips 132 will twist and deform in the opposite direction of the force, thereby buffering the overload force and protecting the bobbin and the equipment from damage. The force-relieving torsion strips 132 are not connected to each other and there is an included angle, so that each torsion strip can be stressed and deformed independently. When an abnormal force acts on a certain torsion strip, it will not affect the normal operation of other torsion strips.

[0047] The above is only a preferred embodiment of the present invention, and thus the scope of implementation of the present invention cannot be limited thereby. That is, equivalent changes and modifications made according to the scope of the present invention patent and the content of the specification should still fall within the scope covered by the present invention.

Claims

1. A spinning frame broken tube detection and alarm device, comprising a motor, a partition and a wire ring installed on the spinning frame, a winding tube for winding yarn is installed on the output shaft of the motor, the partition is symmetrically installed on both sides of the winding tube, a wire ring is arranged between every two adjacent partitions, and the yarn passes through the wire ring and is wound on the surface of the winding tube, characterized in that: A Hall sensor is arranged near the connecting shaft of the motor, an inductive magnetic sheet is arranged in the output shaft of the motor, and a sensing part for sensing the inductive magnetic sheet is arranged in the Hall sensor at a position corresponding to the inductive magnetic sheet. When the inductive magnetic sheet rotates to a position close to the sensing part, the speed of the output shaft of the motor is determined by sensing the inductive magnetic sheet through the sensing part. The motor output shaft is provided with a minimum speed threshold, and when the speed of the motor output shaft is lower than the minimum speed threshold, the Hall sensor sends an alarm signal; The winding bobbin comprises a yarn tube, a sleeve, an overload protection member and an auxiliary alarm member, the overload protection member is connected to the output shaft of the motor, the yarn tube is sleeved outside the sleeve, the overload protection member is inserted into the sleeve from the bottom, and the overload protection member abuts against the sleeve through the auxiliary alarm member arranged at the upper end thereof; The auxiliary alarm component includes a force-unloading alarm wheel composed of a rotary cover, a connecting button and a tightening member, wherein the force-unloading alarm wheel is arranged at the upper end of the overload protection member, the rotary cover is sleeved outside the connecting button, the rotary cover and the connecting button are connected through the tightening member, the rotary cover has an array of inclined plane blocks 1, and the connecting button has an array of inclined plane blocks 2, the inclined plane blocks 1 and the inclined plane blocks 2 are in opposite directions, when the tightening member is tightened, the rotary cover and the connecting button are approached, when the rotary cover is rotated under force, the inclined plane blocks 1 and the inclined plane blocks 2 are squeezed, and the rotary cover and the connecting button are forced to be separated; When the cover is rotated until the inclined surface block 1 does not abut against the inclined surface block 2, the cover and the connecting button will approach each other and produce a collision sound to give an alarm.

2. A spinning frame broken tube detection and alarm device according to claim 1, characterized in that: A first card slot is provided on the inner side of the yarn tube, a first convex strip is provided on the sleeve and is embedded in the first card slot, a second convex strip is provided on the inner upper end of the sleeve and is protruding outward, a second card slot corresponding to the second convex strip is provided on the surface of the unloading alarm wheel, and when the sleeve is sleeved outside the overload protection component, the second convex strip is embedded in the second card slot; The inclined plane block 1 and the inclined plane block 2 are both made of metal material, and the adjacent surfaces of the two are straight structures. The inclined plane of the surface of the inclined plane block 2 is opposite to the direction in which the yarn tube winds up the yarn. When the connecting button is driven to rotate through the sleeve installed on the output shaft of the motor, the inclined plane block 2 can push the rotary cover and the yarn tube sleeved outside the rotary cover to rotate and wind up the yarn through the inclined plane block 1.

3. A spinning frame broken tube detection and alarm device according to claim 2, characterized in that: The tightening member includes a spring and clamping beads symmetrically arranged at the upper and lower ends of the spring, and the adjacent surfaces of the rotary cover and the connecting button are both provided with spherical grooves, and the two clamping beads are both embedded in the adjacent spherical grooves; The inner diameter of the port of the spherical groove is smaller than the outer diameter of the card bead, the card bead is movably installed in the spherical groove, and the two card beads are connected to the spring. When the spring contracts, the card beads on both sides pull the rotary cover and the connecting button, and when the rotary cover and the connecting button gradually approach each other, a collision is generated, and a sound is issued to alarm.

4. A spinning frame broken tube detection alarm device according to claim 3, characterized in that: The overload protection member includes unloading twist bars arranged in an array, the unloading twist bars include rubber sheets, the rubber sheets are respectively connected to the output shaft of the motor and the unloading alarm wheel through connecting sheets arranged at both ends of the rubber sheets, the thickness of the connecting sheets is greater than the thickness of the rubber sheets, and the surface of the rubber sheets is arrayed with a plurality of stress strip grooves; The unloading twist bars are not connected to each other, and there is an angle between two adjacent unloading twist bars; When the rotation speed of the unloading alarm wheel is not equal to the rotation speed of the output shaft of the motor, the overload protection component will twist in the opposite direction of the force.

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