CN220602809U

CN220602809U - Calibration equipment of online tension sensor

Info

Publication number: CN220602809U
Application number: CN202322117747.2U
Authority: CN
Inventors: 潘志讯
Original assignee: Jiangyin Efron Electronic Technology Co ltd
Current assignee: Jiangyin Efron Electronic Technology Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-03-15
Anticipated expiration: 2033-08-08

Abstract

The utility model relates to a calibration device of an online tension sensor, which comprises a case, wherein a driving wheel and a driven wheel are arranged on the front surface of the case, silk threads are wound on the driving wheel and the driven wheel, the silk threads are paid off by the driven wheel, firstly pass through a wire guide below the driven wheel, bypass a fixed wire guide wheel, then bypass a wire guide wheel which is arranged in a suspended manner right below, upwards bypass a rocker wire guide wheel from the wire guide wheel and then are sent to the driving wheel, a lifting lug is arranged at the bottom of the wire guide wheel, a weight is hung below the lifting lug, a sensor base is fixed between the wire guide wheel and the rocker wire guide wheel, and a tension sensor is arranged on the sensor base. The calibration equipment of the online tension sensor can help to check and adjust the online tension sensor under the condition of very low cost, has higher precision when calibrating the tension sensor for the silk thread in a motion state, and has the advantages of simple structure, convenient use, easy manufacture and low cost.

Description

Calibration equipment of online tension sensor

Technical Field

The utility model relates to a calibration device for an online tension sensor.

Background

In the textile industry, the yarn is being drawn by the guide wire wheel, and therefore tension sensors are required to be placed at various locations to detect the tension of the yarn. After the tension sensor works for a period of time, the tension sensor probe is subjected to metal fatigue due to long-time pressure and vibration, so that the precision of the tension sensor is reduced, the error is increased, the tension of the silk thread cannot be accurately measured, and therefore, a calibration instrument is needed to calibrate the tension sensor at intervals.

At present, common tension sensor calibration equipment is only suitable for the static state of a silk thread, and verification equipment is complex, expensive and common. The tension sensor will only rest the instrument on the yarn when needed to measure the current yarn tension, and the measured data is discrete, coarse, discontinuous, and can only be used as a reference. The online tension sensor is used for continuously obtaining tension data in the yarn production process, is a continuous curve, and can record all tension fluctuation of the yarn in the yarn production process. Because the on-line tension sensor measures the tension of the yarn moving up to 1200 meters/minute on the winding device, the corresponding calibration device also needs to move the yarn at high speed to simulate the environment of use on an actual textile machine, and the tension measured by a conventional static tension calibration device can have a large deviation. The calibration error of the tension sensor for the yarn in a motion state is extremely large and the precision is not high.

Disclosure of Invention

The utility model provides a calibrating device for an online tension sensor, which can calibrate the tension sensor when a silk thread moves and has higher precision.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a calibration equipment of online tension sensor, it includes the quick-witted case, the front of machine case is provided with action wheel and follows the driving wheel, and the action wheel and follow the winding has the silk thread on the driving wheel, and the silk thread is unwrapped from the driving wheel, passes the wire ware from the driving wheel below earlier, bypasses fixed wire wheel, and walks under to a unsettled wire wheel that sets up again, upwards bypasses a rocking arm wire wheel from the wire wheel and send to the action wheel on, and the bottom of wire wheel is equipped with the lug, and the lug below hangs has a weight, rocking arm wire wheel comprises rocking arm and movable wire wheel, and movable wire wheel is fixed in the one end of rocking arm, and the other end and the pivot of rocking arm are articulated, and both sides of rocking arm are provided with a stopper respectively, be fixed with a sensor base between wire wheel and the rocking arm wire wheel, set up tension sensor on the sensor base, the front of tension sensor is seted up the recess, a plurality of porcelain bars from the top to bottom in the recess, the inner wall that leaves the porcelain bar and recess, the silk thread passes from bottom to the top in the clearance to tightly paste the porcelain bar, the silk thread exerts pressure for the porcelain bar.

Preferably, the tension sensor is a potential type sensor, and a potentiometer is arranged in the tension sensor.

Preferably, a reference voltage adjusting potentiometer and a magnification adjusting potentiometer are arranged in the tension sensor.

Preferably, the protruding wires in the housing are connected to the power input and voltage signal output of the sensor PCB.

Preferably, the wire guide and the fixed wire guide wheel are fixed on the front surface of the case, the wire guide wheel is suspended, and the wire guide wheel is suspended by the wire.

Preferably, the driving wheel and the driven wheel are sleeved on a rotating shaft, and the rotating shaft is arranged in the case.

Preferably, the rotating shaft of the rocker arm is arranged in the case, and the tail end of the rotating shaft extends out of the case.

Preferably, the driving wheel, the driven wheel, the fixed guide wheel, the wire guide wheel and the movable wire guide wheel are all made of aluminum alloy.

Preferably, the side of the box body is provided with a voltage indicator.

The utility model has the beneficial effects that:

the calibration equipment of the online tension sensor can help to check and adjust the online tension sensor under the condition of very low cost, has higher precision when calibrating the tension sensor for the silk thread in a motion state, and has the advantages of simple structure, convenient use, easy manufacture and low cost.

Drawings

Fig. 1 is a schematic structural diagram of an on-line tension sensor calibration apparatus according to the present utility model.

Fig. 2 is a schematic structural diagram of the tension sensor in fig. 1.

Wherein: the machine case 1, the driving wheel 2, the driven wheel 3, the silk thread 4, the wire guide 5, the fixed guide wheel 6, the wire guide wheel 7, the lifting lug 8, the weight 9, the rocker arm 10, the movable wire guide wheel 11, the limiting block 12, the sensor base 13, the tension sensor 14, the groove 15 and the porcelain rod 16.

Detailed Description

Referring to fig. 1 and 2, the utility model relates to a calibration device of an online tension sensor, which comprises a case 1, wherein a driving wheel 2 and a driven wheel 3 are arranged on the front surface of the case 1, the driving wheel 2 and the driven wheel 3 are sleeved on a rotating shaft, the rotating shaft is arranged in the case 1, the rotating shaft of the driving wheel 2 is driven to rotate by a motor, and a wire 4 is wound on the driving wheel 2 and the driven wheel 3. The silk thread 4 is paid off by the driven wheel 4, firstly passes through the wire guide 5 below the driven wheel 3, bypasses the fixed wire guide wheel 6, then bypasses a wire guide wheel 7 which is arranged in a suspending way right below, upwards bypasses a rocker wire guide wheel 8 from the wire guide wheel 7 and then is sent to the driving wheel 2.

The wire guide 5 and the fixed wire guide wheel 6 are fixed on the front surface of the chassis 1, the wire guide wheel 7 is suspended, the wire guide wheel is lifted by the wire 4, a lifting lug 8 is arranged at the bottom of the wire guide wheel 7, a weight 9 is suspended below the lifting lug 8, and the weight of the weight 9 is 50g. The rocker arm wire guide wheel 8 consists of a rocker arm 10 and a movable wire guide wheel 11, the movable wire guide wheel 11 is fixed at one end of the rocker arm 10, the other end of the rocker arm 10 is hinged with a rotating shaft, the rotating shaft is arranged in the case 1, the tail end of the rotating shaft extends out of the case 1, the rocker arm 10 can rotate with the rocker arm wire guide wheel 8, the left side and the right side of the rocker arm 10 are respectively provided with a limiting block 12, and the limiting blocks 12 limit the rotating range of the rocker arm 10.

The driving wheel 2, the driven wheel 3, the fixed guide wheel 6, the wire guide wheel 7 and the movable wire guide wheel 11 are all made of aluminum alloy.

A sensor base 13 is fixed between the wire guide wheel 7 and the rocker arm wire guide wheel 8, a clamping device is arranged on the sensor base 13, and a tension sensor 14 is clamped on the sensor base 13 through the clamping device. The tension sensor 14 is a potential sensor, a potentiometer is arranged in the tension sensor, a groove 15 is formed in the front face of the tension sensor 14, a plurality of porcelain bars 16 are arranged in the groove 15 from top to bottom, gaps are reserved between the porcelain bars 16 and the inner walls of the groove 15, the silk thread 4 passes through the gaps from bottom to top and is tightly attached to the porcelain bars 16, and the silk thread 4 applies pressure to the porcelain bars 16. The tension sensor 14 is provided with a reference voltage adjusting potentiometer and a magnification adjusting potentiometer. The potentiometer is regulated by the reference voltage to enable the output voltage to be as close to 1V as possible, and the potentiometer does not need to be hung on a calibrator; after 50g weights are mounted on the amplification factor adjusting potentiometer, the output voltage is as close to 6V as possible, and the potentiometer is required to be hung on a calibrator for adjustment. The power input of the lead wire extending out of the box body 1 and the sensor PCB is connected with the voltage signal output, the side surface of the box body 1 is provided with a voltage indicator for displaying the output voltage of the tension sensor detected by the calibrator, the voltage is adjusted according to the signal voltage, and when a 50g weight is hung, the output voltage is adjusted to 6V, so that the calibration and adjustment can be completed.

The working process of the calibration equipment of the online tension sensor is as follows:

a weight of 50g is hung on a wire guide wheel serving as a pulley, one end of a rope for pulling the pulley extends to a driven wheel through the fixed wire guide wheel, the other end of the rope extends to a driving wheel through the wire guide wheel fixed on a rocker arm, and an operator pulls the rocker arm to enable yarns to be loaded on a sensor or separated from the sensor.

In the moving state, the yarn slides over the friction surface of the sensor at a high speed, and the yarn moving speed has a significant effect on the tension, and the larger the speed, the larger the effect. When the yarns are loaded on the sensor (in a static state), the two yarns have upward pulling force which is 25g which is half of the weight gravity and is equal to 9.8 x 25 g/1000=24.5 centinewtons, so that the tension of the yarns mounted on the sensor at the moment is 24.5 centinewtons, and the corresponding output voltage is 6V. If the output voltage measured on the tension sensor is not 6V, the amplification factor adjusting potentiometer is required to be hung on the calibrator for adjustment.

Claims

1. An on-line tension sensor calibration device, characterized by: the wire feeding device comprises a machine case, wherein a driving wheel and a driven wheel are arranged on the front surface of the machine case, wires are wound on the driving wheel and the driven wheel, the wires firstly pass through a wire guide below the driven wheel and bypass a fixed wire guide wheel, then bypass a wire guide wheel which is arranged in a suspending manner right below the wire guide wheel, the wires upwards bypass a rocker wire guide wheel and then are sent to the driving wheel, a lifting lug is arranged at the bottom of the wire guide wheel, a weight is hung below the lifting lug, the rocker wire guide wheel consists of a rocker and a movable wire guide wheel, the movable wire guide wheel is fixed at one end of the rocker, the other end of the rocker is hinged with a rotating shaft, two sides of the rocker are respectively provided with a limiting block, a sensor base is fixed between the wire guide wheel and the rocker wire guide wheel, a tension sensor is arranged on the sensor base, a groove is formed in the front surface of the tension sensor, a plurality of porcelain bars are arranged from top to bottom in the groove, gaps are reserved between the porcelain bars and the inner walls of the groove, the wires pass through the gap from bottom to top, and are tightly attached to the porcelain bars, and the wires exert pressure on the porcelain bars.

2. The apparatus for calibrating an on-line tension sensor as recited in claim 1, wherein: the tension sensor is a potential sensor, and a potentiometer is arranged in the tension sensor.

3. The apparatus for calibrating an on-line tension sensor as recited in claim 2, wherein: the tension sensor is provided with a reference voltage adjusting potentiometer and a magnification adjusting potentiometer.

4. A calibration device for an on-line tension sensor as recited in claim 3, wherein: and the power input and the voltage signal output of the lead wires extending out of the box body are connected with the power input and the voltage signal output of the sensor PCB.

5. The apparatus for calibrating an on-line tension sensor as recited in claim 1, wherein: the wire guide and the fixed wire guide wheel are fixed on the front surface of the case, the wire guide wheel is suspended, and the wire guide wheel is suspended by the wire.

6. The apparatus for calibrating an on-line tension sensor as recited in claim 1, wherein: the driving wheel and the driven wheel are sleeved on a rotating shaft, and the rotating shaft is arranged in the case.

7. The apparatus for calibrating an on-line tension sensor as recited in claim 1, wherein: the rotating shaft of the rocker arm is arranged in the case, and the tail end of the rotating shaft extends out of the case.

8. The apparatus for calibrating an on-line tension sensor as recited in claim 1, wherein: the driving wheel, the driven wheel, the fixed guide wheel, the wire guide wheel and the movable wire guide wheel are all made of aluminum alloy.

9. The apparatus for calibrating an on-line tension sensor as recited in claim 1, wherein: the side of the box body is provided with a voltage indicator.