Yarn speed measuring mechanism and yarn storage device

Abstract

The utility model discloses a yarn speed measuring mechanism and a yarn storage device, and relates to the technical field of textile equipment, the yarn speed measuring mechanism comprises a speed measuring support connected to a mounting support; the speed measuring wheel is rotatably arranged on the speed measuring support, yarn wound by the yarn storage barrel penetrates through the yarn outlet hole and is wound on the speed measuring wheel, and the speed measuring wheel is suitable for being driven by the yarn to rotate; the speed measurement detection piece is arranged on the speed measurement wheel, and the rotation axis of the speed measurement detection piece does not coincide with the rotation axis of the speed measurement wheel; and the speed measurement sensor is arranged right opposite to the speed measurement wheel, the speed measurement detection piece can rotate along with the speed measurement wheel at any time and pass through the speed measurement sensor, and the speed measurement sensor can generate a detection signal when the speed measurement detection piece passes through. The yarn speed detection device can detect the yarn speed in real time and ensure the textile quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of textile equipment, especially a yarn speed measuring mechanism and a yarn accumulator. BACKGROUND

[0002] The yarn accumulator is a device for storing and feeding yarn in a textile equipment. The yarn accumulator includes a yarn storage drum, a mounting bracket, and a driving motor. The yarn storage drum is rotatably arranged on the mounting bracket, and the yarn is wound around the periphery of the yarn storage drum. The mounting bracket is provided with a yarn outlet hole. The yarn is drawn out from the yarn storage drum, passes through the yarn outlet hole, and is connected to a loom. The driving motor is connected to the yarn storage drum and drives the yarn storage drum to rotate relative to the mounting bracket to wind the yarn for storage or feeding.

[0003] During yarn storage and feeding, the yarn moves at a certain speed relative to the yarn outlet hole. In actual production, the yarn supply speed may change, and the speed of the yarn needs to be detected. In the prior art, the yarn speed is detected by measuring the rotational speed of the yarn storage drum. However, the installation position of the measuring mechanism is limited, and since the tension of the yarn changes during movement, directly measuring the rotational speed of the yarn storage drum cannot accurately reflect the speed of the yarn, which has certain limitations. SUMMARY

[0004] The utility model aims to provide a yarn speed measuring mechanism and a yarn accumulator, which can detect the speed of the yarn in real time and ensure the quality of textile fabrics.

[0005] The above technical purpose of the utility model is achieved by the following technical solutions:

[0006] According to the first aspect of the utility model, a yarn speed measuring mechanism is provided for a yarn accumulator. The yarn accumulator includes a mounting bracket and a yarn storage drum rotatably arranged on the mounting bracket. The mounting bracket is provided with a yarn outlet hole. The yarn speed measuring mechanism includes:

[0007] A speed measuring bracket is connected to the mounting bracket.

[0008] A speed measuring wheel is rotatably arranged on the speed measuring bracket. The yarn wound on the yarn storage drum passes through the yarn outlet hole and is wound around the speed measuring wheel. The speed measuring wheel is adapted to rotate under the action of the yarn.

[0009] A speed measuring detection member is arranged on the speed measuring wheel. The rotational axis of the speed measuring wheel does not coincide with the speed measuring detection member.

[0010] A speed measuring sensor is arranged opposite to the speed measuring wheel. The speed measuring detection member can rotate with the speed measuring wheel and pass through the speed measuring sensor at any time. The speed measuring sensor can generate a detection signal when the speed measuring detection member passes through.

[0011] Further, the speed detection member comprises a magnet, and the speed sensor comprises a Hall element which generates a Hall electromotive force when the magnet rotates through.

[0012] Further, the magnet is provided in plurality, and the plurality of magnets are uniformly arranged along the circumference of the speed wheel.

[0013] Further, the speed detection member is arranged on the bottom surface of the speed wheel, and the speed sensor is arranged parallel to the bottom surface of the speed wheel.

[0014] Further, the speed support is vertically connected with a mounting plate, a threaded column is threadedly connected to the mounting plate, a bearing is arranged on the threaded column, a rotating hole is arranged in the middle of the speed wheel, and the outer ring of the bearing is matched with the rotating hole.

[0015] Further, the mounting plate is connected with a mounting seat, an avoiding slot is arranged on the mounting plate, the mounting seat is arranged on the side of the mounting plate away from the speed wheel, and the mounting seat passes through the avoiding slot; a sensor mounting slot is arranged on the mounting plate for mounting the speed sensor.

[0016] Further, a detection member mounting slot is arranged on the speed wheel, and the speed detection member is fitted and mounted in the detection member mounting slot.

[0017] Further, a yarn limiting slot is arranged on the circumferential side of the speed wheel along the circumference, and the cross section of the yarn limiting slot is in V shape.

[0018] Further, two yarn limiting members are arranged on the speed support, the yarn limiting members are provided with yarn passing holes for yarn passing, the speed wheel is arranged between the two yarn limiting members, and the distance from the yarn passing hole to the speed support is smaller than the distance from the rotating axis of the speed wheel to the speed support.

[0019] According to the second aspect of the present application, a yarn storage device is provided, which comprises a yarn storage cylinder, a driving motor, a mounting support, a controller and the yarn speed measuring mechanism, the yarn storage cylinder is rotatably arranged on the mounting support and can be driven to rotate by the driving motor, the mounting support is provided with a yarn outlet hole, the speed support of the yarn speed measuring mechanism is connected to the mounting support and located below the yarn outlet hole, and the controller is electrically connected to the driving motor and the yarn speed measuring mechanism.

[0020] In summary, the present application has the following advantages:

[0021] 1. The yarn speed measuring mechanism of the utility model, its speed measuring support is connected to the mounting support of the yarn storage device, the speed measuring wheel is rotationally arranged on the speed measuring mechanism, the yarn wound on the yarn storage drum passes the yarn outlet hole of the mounting support and then winds around the speed measuring wheel, so that the speed measuring wheel can be driven to rotate when the yarn moves, the speed measuring detecting piece is arranged on the speed measuring wheel, when the speed measuring wheel rotates, the speed measuring detecting piece can pass the speed measuring sensor arranged on the side of the speed measuring wheel, the speed measuring sensor generates a detection signal when the speed measuring detecting piece passes, the number of detection signals can be used to obtain the rotating speed of the speed measuring wheel, and then the moving speed of the yarn can be calculated in combination with the diameter of the speed measuring wheel, the installation position of the yarn speed measuring mechanism of the utility model is not limited by the yarn storage drum, the installation is convenient, and the speed of the yarn at the yarn outlet hole is measured, which can better reflect the speed of the yarn when the yarn is stored and fed, and then the user can adjust the yarn feeding speed to meet the textile needs of different fabrics, and the textile quality is ensured.

[0022] 2. The speed measuring detecting piece comprises a magnet, and the speed measuring sensor comprises a Hall element, the Hall element can generate a Hall electromotive force when the magnet passes, so that the speed measuring detecting piece is detected to pass the speed measuring sensor, and the rotating speed of the speed measuring wheel is detected.

[0023] 3. The mounting seat is installed on the side of the mounting plate away from the speed measuring wheel and passes through the avoiding slot on the mounting plate to face the speed measuring wheel, so that the installation position of the mounting seat is reasonable, and the mounting seat is not easy to interfere with the speed measuring wheel, and the sensor mounting groove on the mounting seat is convenient for the installation of the speed measuring sensor.

[0024] 4. The detecting piece mounting groove is arranged on the speed measuring wheel, the speed measuring detecting piece is fitted and installed in the detecting piece mounting groove, so that the overall mass distribution of the speed measuring wheel is uniform, the speed measuring wheel is more stable when rotating, and the connection between the speed measuring detecting piece and the speed measuring wheel is more compact and reliable.

[0025] 5. The V-shaped limiting groove is arranged on the periphery of the speed measuring wheel, so as to limit the yarn and make the yarn not easy to separate from the speed measuring wheel.

[0026] 6. The yarn limiting piece is arranged on the speed measuring support, the speed measuring wheel is located between the two yarn limiting pieces, so that the yarn moves stably along the connecting line of the two speed measuring supports and the speed measuring wheel; the distance from the yarn penetrating hole on the two yarn limiting pieces to the speed measuring support is less than the distance from the rotating axis of the speed measuring wheel to the speed measuring support, so that the yarn between the two yarn limiting pieces can be better wound outside the speed measuring wheel, and the speed measuring wheel is stably driven to rotate.

[0027] 7. The yarn storage device is driven by the driving motor to rotate on the mounting support, so as to realize the storage and feeding of the yarn; the yarn speed measuring mechanism is connected to the mounting support to measure the moving speed of the yarn at the yarn outlet hole, and the controller can control the driving motor to adjust the rotating speed according to the yarn speed measured by the yarn speed measuring mechanism, so as to adjust the speed of the yarn and meet the needs of spinning. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a three-dimensional structure schematic diagram of the yarn storage device of an embodiment of the utility model.

[0029] Figure 2 is a three-dimensional structure schematic diagram of the yarn speed measuring mechanism of an embodiment of the utility model.

[0030] Figure 3 is an exploded structure schematic diagram of the yarn speed measuring mechanism of an embodiment of the utility model.

[0031] Figure 4 is a three-dimensional structure schematic diagram of the mounting seat of an embodiment of the utility model.

[0032] Figure 5 is an exploded structure schematic diagram of the speed measuring wheel and the speed measuring detection piece of an embodiment of the utility model.

[0033] In the drawing:

[0034] 1000, yarn storage device; 100, yarn storage drum; 200, mounting bracket; 210, shell; 220, arm; 221, yarn outlet hole; 300, yarn speed measuring mechanism; 310, speed measuring bracket; 320, speed measuring wheel; 321, rotating hole; 322, detection piece mounting groove; 323, yarn limiting groove; 330, speed measuring detection piece; 340, speed measuring sensor; 350, mounting plate; 351, threaded column; 352, bearing; 353, avoiding groove; 360, mounting seat; 361, sensor mounting groove; 362, wiring hole; 370, yarn limiting piece; 371, yarn passing hole; 400, yarn tensioner. DETAILED DESCRIPTION

[0035] The utility model will be further explained in connection with the drawings below.

[0036] The embodiment discloses a kind of yarn storage device 1000, refer to Figure 1 Yarn storage device 1000 includes yarn storage drum 100, drive motor, mounting bracket 200, controller and yarn speed measuring mechanism 300.Yarn storage drum 100 is rotationally arranged in mounting bracket 200, drive motor is arranged in mounting bracket 200, and the driving shaft of drive motor is connected to yarn storage drum 100 to drive yarn storage drum 100 to rotate.Mounting bracket 200 includes shell 210 and arm 220, yarn storage drum 100 is connected to shell 210, arm 220 is connected to the end of shell 210 and is arranged with yarn storage drum 100 interval, and speed measuring mechanism is arranged on arm 220.

[0037] The yarn outlet hole 221 is formed in the part of the branch arm 220 extending to the side of the yarn storage cylinder 100 away from the housing 210, and the yarn wound on the yarn storage cylinder 100 passes through the yarn outlet hole 221 and is combined with the yarn speed measuring mechanism 300.

[0038] The controller is electrically connected to the driving motor and the yarn speed measuring mechanism 300, and is used to control the start and stop of the driving motor. The controller can control the rotating speed of the driving motor according to the yarn speed measured by the yarn speed measuring mechanism 300. For example, when the yarn speed measuring mechanism 300 detects that the yarn speed is less than the required set value, the controller controls the driving motor to increase the rotating speed, so as to speed up the yarn; or when the yarn speed measuring mechanism 300 detects that the yarn speed is greater than the required set value, the controller controls the driving motor to reduce the rotating speed, so as to slow down the yarn.

[0039] With reference to Figure 1 and Figure 2 , the yarn speed measuring mechanism 300 comprises a speed measuring support 310, a speed measuring wheel 320, a speed measuring detection piece 330 and a speed measuring sensor 340. The speed measuring support 310 is connected to the mounting support 200, and extends downward below the yarn outlet hole 221 and away from the yarn storage cylinder 100. The speed measuring wheel 320 is rotatably arranged on the speed measuring support 310, and the speed measuring detection piece 330 is arranged on the speed measuring wheel 320. The rotating axis of the speed measuring wheel 320 and the speed measuring detection piece 330 do not coincide. The speed measuring sensor 340 is arranged on the speed measuring support 310 and faces the speed measuring wheel 320.

[0040] In this embodiment, the yarn wound on the yarn storage cylinder 100 passes through the yarn outlet hole 221 and winds around the speed measuring wheel 320, so that the yarn can drive the speed measuring wheel 320 to rotate when the yarn moves. The speed measuring detection piece 330 can rotate with the speed measuring wheel 320 and pass through the speed measuring sensor 340. The speed measuring sensor 340 can generate a detection signal when the speed measuring detection piece 330 passes through. The controller can obtain the rotating speed of the speed measuring wheel 320 according to the number of detection signals generated, and then calculate the moving speed of the yarn combined with the diameter of the speed measuring wheel 320. For example, the diameter of the speed measuring wheel 320 (the diameter is twice the minimum distance from the yarn wound around the speed measuring wheel 320 to the rotating axis of the speed measuring wheel 320) is d, the speed measuring sensor 340 generates n detection signals when the speed measuring wheel 320 rotates one circle, and the speed measuring sensor 340 detects the speed measuring detection piece 330 once every time t, then the speed of the yarn is (πd / nt).

[0041] Therefore, the yarn speed measuring mechanism 300 of this embodiment is not limited by the yarn storage cylinder 100 in the installation position, and is convenient to install. The yarn speed measuring mechanism 300 measures the speed of the yarn at the yarn outlet hole 221, which can better reflect the speed of the yarn during the storage and feeding of the yarn, and then the user can adjust the yarn feeding speed to meet the textile needs of different fabrics, so as to ensure the textile quality.

[0042] In the embodiment, the speed detection member 330 comprises a magnet, and the speed sensor 340 comprises a Hall element. The magnet is fixedly arranged on the speed wheel 320. The Hall element is electrically connected to the controller, and a test current flows through the Hall element. When the magnet rotates through the Hall element, a Hall electromotive force is generated, and the controller can record the number of times and the time interval of generation of the Hall electromotive force, so as to detect that the speed detection member 330 passes through the speed sensor 340, and thus the rotation speed of the speed wheel 320 is detected.

[0043] In addition, in other embodiments, the speed detection member 330 and the speed sensor 340 can also be other suitable mechanisms. For example, in an embodiment, the speed detection member 330 can be a laser emitter, and the speed sensor 340 can be a laser receiver; in an embodiment, the speed detection member 330 can be a colored block with a color different from that of the speed wheel 320, and the speed sensor 340 can be a visual camera; in an embodiment, the speed detection member 330 can be a trigger protrusion, and the speed sensor 340 can be a micro switch.

[0044] In the embodiment, a plurality of magnets are arranged, and the plurality of magnets are uniformly and spacedly arranged along the circumference of the speed wheel 320. By arranging a plurality of magnets, the time interval of the magnet passing through the Hall element is reduced, and thus the measured yarn speed is more accurate.

[0045] With reference to Figure 2 and Figure 3 In the embodiment, the speed detection member 330 is arranged on the bottom surface of the speed wheel 320 (i.e. one of the two opposite surfaces of the speed wheel 320), and the speed sensor 340 is arranged parallel to the bottom surface of the speed wheel 320. This arrangement mode makes the speed detection member 330 not interfere with the yarn on the circumferential side of the speed wheel 320, and facilitates the installation of the speed sensor 340 and the speed detection member 330, and the structure is more reasonable. In addition, in other embodiments, the speed detection member 330 can also be arranged on the circumferential side of the speed wheel 320, and correspondingly the speed sensor 340 is arranged opposite to the circumferential side of the speed wheel 320.

[0046] The speed support 310 is a flat plate-shaped member, and the plate surface of the speed support 310 is perpendicularly connected with a mounting plate 350. A threaded column 351 is threadedly connected to the mounting plate 350, the threaded column 351 is externally sleeved with a bearing 352, a rotating hole 321 is formed in the middle of the speed wheel 320, and the outer ring of the bearing 352 is matched with the rotating hole 321, so as to realize the rotating connection between the speed wheel 320 and the speed support 310.

[0047] The mounting plate 350 is connected with a mounting seat 360. The mounting plate 350 is provided with an avoiding slot 353. The mounting seat 360 is mounted on the side of the mounting plate 350 away from the speed measuring wheel 320, and the mounting seat 360 passes through the avoiding slot 353, so that the mounting position of the mounting seat 360 is reasonable and is not easy to interfere with the speed measuring wheel 320.

[0048] With reference to Figure 3 and Figure 4 , the mounting plate 350 is provided with a sensor mounting slot 361 for mounting the speed measuring sensor 340. The opening of the sensor mounting slot 361 faces the speed measuring wheel 320. The speed measuring sensor 340 is fittedly mounted in the sensor mounting slot 361. The bottom of the sensor mounting slot 361 is provided with a wire hole 362 for the lead wire of the Hall element of the speed measuring sensor 340 to extend out.

[0049] In the embodiment, the mounting seat 360 is fixedly connected to the mounting plate 350 by bolts and nuts, so as to facilitate the mounting of the mounting seat 360 and the speed measuring sensor 340. In other embodiments, the mounting seat 360 can also be integrally formed on the mounting plate 350.

[0050] With reference to Figure 5 , in the embodiment, the speed measuring wheel 320 is provided with a detection piece mounting slot 322. A magnet is fittedly mounted in the detection piece mounting slot 322. Specifically, the detection piece mounting slot 322 is a circular blind hole. The magnet is cylindrical and has the same diameter as the circular blind hole. When the magnet is mounted in the detection piece mounting slot 322, the overall mass of the speed measuring wheel 320 is evenly distributed, the speed measuring wheel 320 is more stable when rotating, and the speed measuring detection piece 330 is more compactly and reliably connected with the speed measuring wheel 320.

[0051] With reference to Figures 2 to 5 , the circumferential side of the speed measuring wheel 320 is provided with a ring of yarn limiting slots 323 along the circumference. The yarn is limited by the limiting slots, so that the yarn on the circumferential side of the speed measuring wheel 320 is not easy to come off the speed measuring wheel 320.

[0052] In the embodiment, the cross section of the yarn limiting slot 323 is V-shaped, which is wider at the slot opening and narrower at the slot bottom, so as to facilitate the winding of the yarn on the speed measuring wheel 320. The yarn at the slot bottom is not easy to swing relative to the slot bottom, so that the yarn is more stable when storing and feeding.

[0053] With reference to Figures 1 to 3 , the speed measuring bracket 310 is provided with two yarn limiting pieces 370. The yarn limiting pieces 370 are provided with yarn passing holes 371 for the yarn to pass through. The projections of the two yarn limiting pieces 370 and the speed measuring wheel 320 on the speed measuring bracket 310 are located on the same straight line, and the speed measuring wheel 320 is arranged between the two yarn limiting pieces 370, so that the yarn moves stably along the connecting line of the two speed measuring brackets 310 and the speed measuring wheel 320.

[0054] In the embodiment, the distance from the threading hole 371 to the speed measuring support 310 is less than the distance from the rotating axis of the speed measuring wheel 320 to the speed measuring support 310, so that the yarn between the two yarn limiters 370 can be better wound around the speed measuring wheel 320, thereby stably driving the speed measuring wheel 320 to rotate.

[0055] With reference to Figure 1 The speed measuring support 310 is further provided with a yarn tensioner 400, which is arranged between the yarn outlet hole 221 and the speed measuring wheel 320. The yarn between the yarn outlet hole 221 and the speed measuring wheel 320 passes through the yarn tensioner 400, and the yarn tensioner 400 tensions the yarn between the yarn storage drum 100 and the speed measuring wheel 320.

[0056] The above is only a preferred embodiment of the present application, so equivalent changes or modifications made according to the structure, features and principles described in the patent application range of the present application are included in the patent application range of the present application.

Claims

1. A yarn speed measuring mechanism for a yarn accumulator, the yarn accumulator (1000) comprising a mounting bracket (200) and a yarn storage drum (100) rotatably arranged in the mounting bracket (200), the mounting bracket (200) being provided with a yarn outlet hole (221), characterized in that, The yarn speed measuring mechanism (300) comprises: a speed measuring support (310) connected to the mounting support (200); a speed measuring wheel (320) rotatably arranged on the speed measuring support (310), the yarn wound on the yarn storage drum (100) passing through the yarn outlet hole (221) and winding around the speed measuring wheel (320), the speed measuring wheel (320) being adapted to rotate under the driving of the yarn; a speed measuring detection piece (330) arranged on the speed measuring wheel (320), the speed measuring detection piece (330) not coinciding with the rotation axis of the speed measuring wheel (320); a speed measuring sensor (340) arranged opposite to the speed measuring wheel (320), the speed measuring detection piece (330) being able to rotate with the speed measuring wheel (320) and pass through the speed measuring sensor (340), the speed measuring sensor (340) being able to generate a detection signal when the speed measuring detection piece (330) passes through.

2. A yarn speed measuring mechanism as claimed in claim 1, characterized in that The speed measuring detection piece (330) comprises a magnet, and the speed measuring sensor (340) comprises a Hall element, the Hall element generating a Hall electromotive force when the magnet rotates and passes through.

3. A yarn speed measuring mechanism as claimed in claim 2, characterized in that The magnet is provided in plurality, and the plurality of magnets are uniformly and spacedly arranged along the circumference of the speed measuring wheel (320).

4. A yarn speed measuring mechanism as claimed in claim 1, characterized in that The speed measuring detection piece (330) is arranged on the bottom surface of the speed measuring wheel (320), and the speed measuring sensor (340) is arranged parallel to the bottom surface of the speed measuring wheel (320).

5. A yarn speed measuring mechanism as claimed in claim 1, characterized in that The speed measuring support (310) is vertically connected with a mounting plate (350), the mounting plate (350) being threadedly connected with a threaded column (351), the threaded column (351) being externally provided with a bearing (352), the speed measuring wheel (320) being provided with a rotating hole (321) in the middle portion, and the outer ring of the bearing (352) being fitted into the rotating hole (321).

6. A yarn speed measuring mechanism as claimed in claim 5, characterized in that The mounting plate (350) is connected with a mounting seat (360), the mounting plate (350) being provided with an avoiding groove (353), the mounting seat (360) being mounted on the side of the mounting plate (350) away from the speed measuring wheel (320), and the mounting seat (360) passing through the avoiding groove (353); the mounting plate (350) being provided with a sensor mounting groove (361) for mounting the speed measuring sensor (340).

7. A yarn speed measuring mechanism as claimed in claim 1, characterized in that The speed measuring wheel (320) is provided with a detection piece mounting groove (322), and the speed measuring detection piece (330) is fitted and mounted in the detection piece mounting groove (322).

8. A yarn speed measuring mechanism as claimed in claim 1, characterized in that The circumferential side of the speed measuring wheel (320) is provided with a ring of yarn limiting grooves (323) along the circumference, and the cross section of the yarn limiting groove (323) is in V shape.

9. A yarn speed measuring mechanism as claimed in claim 1, characterized in that The speed measuring support (310) is provided with two yarn limiters (370), the yarn limiters (370) are provided with yarn passing holes (371) for yarn passing; the speed measuring wheel (320) is arranged between the two yarn limiters (370), the distance from the yarn passing hole (371) to the speed measuring support (310) is less than the distance from the rotating axis of the speed measuring wheel (320) to the speed measuring support (310).

10. A yarn accumulator characterized by The yarn storage device (1000) comprises a yarn storage cylinder (100), a driving motor, a mounting support (200), a controller and the yarn speed measuring mechanism (300) according to any one of claims 1-9, the yarn storage cylinder (100) is rotationally arranged on the mounting support (200) and can be driven to rotate by the driving motor, the mounting support (200) is provided with a yarn outlet hole (221), the speed measuring support (310) of the yarn speed measuring mechanism (300) is connected to the mounting support (200) and located below the yarn outlet hole (221), and the controller is electrically connected to the driving motor and the yarn speed measuring mechanism (300).

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