CN87202104U - Electronic digital fabric tensiometer - Google Patents
Electronic digital fabric tensiometer Download PDFInfo
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- CN87202104U CN87202104U CN 87202104 CN87202104U CN87202104U CN 87202104 U CN87202104 U CN 87202104U CN 87202104 CN87202104 CN 87202104 CN 87202104 U CN87202104 U CN 87202104U CN 87202104 U CN87202104 U CN 87202104U
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- force
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Abstract
The utility model relates to an electronic digital tension tester which is provided with a fixed value mechanism fixedly operating the subsidiary force by fixed value, a force reducing lever, a data retaining circuit, an analog-digital conversion circuit, a decoding circuit, a driving circuit and a digitron display. The utility model has higher measuring accuracy and precision and has a data retaining function to be convenient for reading and recording. The utility model is suitable for measuring the sizes of the tension on the unit width of the fabrics in the weaving process of the fabrics of various piece goods, reconstructed paper shaping nets, dry nets, etc., and under the tensioning state during working.
Description
The utility model relates to a kind of electronic digital type fabric tension tester.
At present, the tensiometer that uses mainly contains two classes both at home and abroad, is mechanical pointer and electronic pointer type.The mechanical pointer tensiometer is more original, and dial plate is non-homogeneous scale, and the contact area of chassis and screen cloth reaches 140cm, and big to fabric abrasion when measuring the motion fabric, its precision is low, only is suitable for measuring the fabric of static or low-speed motion.
Electronic pointer type tensiometer (as the ELEMETRON board) has used pressure transducer, has amplifying circuit and magneto-electric gauge outfit.The stressed roller of its front and back deflector roll and middle part is all rotatable, during use and the fricton-tight friction of motion screen cloth.Can be used for testing the fabric of high-speed motion.
More than two kinds of tensiometers be all hand-held, even the time spent is held the handle of testing jig, this is easy to screen cloth is caused a kind of " additional force ", and increases the error in actual the use greatly, the operator also needs certain using skill.
Above in addition two kinds of tensiometers all do not have data to keep function, and pointer returned zero immediately when its testing jig left screen cloth, caused certain difficulty to reading.Because the two all is a pointer-type, when using, be difficult for seeing clearly reading than the workshop of low-light (level) is on-the-spot.
The purpose of this utility model is to design a kind of have constant operation additional force fits automatically and data maintenance function, the electronic digital type fabric tension meter that measuring accuracy is high.
The utility model is realized with the following methods, by the front and back deflector roll, tension force is gathered roller, can transmit linearly with power is gathered in conversion and subtract the power lever, the collection transmission and the mapping device of the power that the definite value mechanism of definite value fixing operation additional force forms, it gets off the tension force of fabric " acceptance ", and carry out the conversion of power/electricity through subtracting power lever transmission to pressure transducer, the electric signal of pressure transducer output is delivered to direct current amplifier, deliver to analog to digital conversion and decoding and driving circuit again through amplifying signal, show the data of surveying by nixie display at last.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the theory diagram of electronic digital type fabric tension tester.
Fig. 2 is the testing jig scheme of erection of electronic digital type fabric tension tester.
Fig. 3 is the electrical schematic diagram of electronic digital type fabric tension tester.
In Fig. 1, this device is by the collection transmission and the mapping device (a) of power, micro pressure sensor (b), and direct current amplifier (c), value data keeps (e).A/D conversion and decoding and driving circuit (d), nixie display, power supply (f) is formed.
Collection transmission and mapping device (a) by power get off the tension force of fabric " acceptance ", and reach pressure transducer (b) and carry out the conversion of power/electricity through subtracting the power lever, the output electric signal of pressure transducer is delivered to direct current amplifier (c), deliver to A/D conversion and decoding again and promote circuit through the electric signal that amplifies, show the data of surveying by nixie display at last.Power unit (f) is specialized in pressure transducer constant current source that uses and the stabilized voltage supply of supplying with all other each several parts and is formed by packed cell.
In Fig. 2 testing jig scheme of erection, entire mechanism is installed on the frame (1), comprises preceding guide roller set (3), back guide roller set (4), the pony roll of the garden post that it is 25mm that every group of deflector roll has three diameters, on the two-parallel axis, the distance between the two-parallel axis is 190mm before and after being contained in.It is 20mm that tension force is gathered roller (5) diameter, and long is 20mm.Its plain line of next bar give prominence to 1.2-2.0mm in a plane of a plain line decision bottom than two groups of deflector rolls, optimum value is 1.5mm.
Subtracting power lever (6) is fixed on the supporter (8) by axle (7), tension force is gathered roller (5) and is fixed on lever (6) middle part by axle (18), at lever (6) one ends effect screw (9) to the sensor sensing head is housed, revolves and stick with glue the agent cementation after this screw makes lever (6) level.Locating to be equipped with the screw (10) that sensor is played the machine overload protection effect near effect screw (9), cementing on the lever (6) make the space (can not contact) of its top and sensor marginal portion maintenance 0.1mm through adjustment after.The other end at lever (6) is equipped with balancing spring (11), adjusts it and can make lever be in the static equilibrium state, and this can make does not increase error when measuring non-horizontal screen cloth.
The axle (18) that tension force is gathered roller (5) to the active force arm of force of lever fulcrum shaft with act on screw (9) to lever fulcrum shaft be 1.3-1.6 by the two ratio of the power arm of force, the best is 1.5.The general above-mentioned active force arm of force is 12mm, is 60mm by the power arm of force.
The definite value mechanism of definite value fixing operation additional force is by spring (13).Handle jacket (14), and microswitch K4 composition, spring (13) is enclosed within on the garden pillar buoy of frame (1) top, and handle jacket (14) is enclosed within on the spring (13), the button of handle jacket (14) aligned beneath definite value K switch 4.
The relative frame of handle jacket is moved downward holding the elastic force that handle jacket (14) will overcome spring (13) downwards firmly the time, touch microswitch K4 until handle jacket (14), and make it action.Pressing force when obviously at every turn testing to K switch 4 actions equates, promptly plays the effect of definite value fixing operation additional force.
Among Fig. 2, (12) are fixed cover, and (15) are five core electric fences, and (16) are five pole sockets.
Fig. 3 is an electrical schematic diagram of the present utility model, and pressure transducer adopts solid-state pressure drag load sensor among the figure, and it is converted to the electric signal that is directly proportional with it with the concentrated force that is subjected on its " sensing head ".This device only uses 1/5th of sensor gamut, and the displacement of sensor full and down is 0.1mm.
The electric signal of pressure transducer output reaches direct current amplifier, and direct current amplifier adopts single source integrated operational amplifier IC4.R20, R21, R22 is the input zero-regulator resistor, can add at the sensor stack of different " zero-bit outputs " owing to " operation additional force " total balance that is adjusted to behind the additional electrical signal that causes on the sensor.
R16 is that range is adjusted potentiometer, have adjustment on the spot on the fabric of accurate tension force after complete machine installs.
When R18, R19 switched to the K2-2 position in power check K switch 2, charactron showed cell voltage, if should change battery when being lower than 4.5V.
The voltage dividing potential drop that R23 will be lower than the zero potential reference point be the 0-number millivolt to offset IC4 transport and placing device " offset voltage ", make when amplifier is input as zero that final numeral shows null value.
The output of direct current amplifier is delivered to A/D conversion and decoding and is promoted circuit, and it can adopt large scale integrated circuit IC1, also can adopt discrete component to form.This device is to adopt large scale integrated circuit IC1 and integrated circuit (IC) 2.Resistance R 2-R9, capacitor C 1-C7, diode D1, D2, stabilivolt D3, and field effect transistor BG1 forms.
IC1 comprises the double integrator analog to digital converter, and BGD seven-segment decoder and display driver, and clock and reference source have automatic zero set (AZS) and automatic performance of deciding polarity.It becomes numeral output to the DC voltage of input, through deciphering direct driving display.
IC2 and D1, D2, C1, C2 produce 26 pin that a negative voltage about 4V is supplied with IC1 jointly.
Field effect transistor BG1 provides a steady current to voltage stabilizing diode D3, and to produce a burning voltage, this voltage is reduced to 100mv by R4, and 36 pin that supply IC1 are as reference voltage.
When the fabric tension value changed 0.04kg/cm during IC1 input variation ± 0.4mv, numeral changed ± 1 word.
The data holding circuit of this device is by two-way integrated analog switch IC3, definite value K switch 4, and reset switch K3, light emitting diode D5 forms.
The 7 pin ground connection of IC3,14 pin meet V+.All the other 12 pin are divided into four tunnel identical switches.13.5.6.12 pin is respectively 1 and 2 pin, 3 and 4 pin, 8 and 9 pin, the control end of 10 and 11 pin.When 13 pin are high level, 1 and 2 pin conductings, when 13 pin were low level, 1 and 2 pin ended.Other three-way switch situation is identical.
First via switch (13.1.2 pin) is connected into the self-supporting switch.Its 1 pin is just connecing power supply, and control end 13 pin are connected to 2 ends through R28, again through R26 ground connection.When energized K switch 1 just or when clicking reset switch K3, electronegative potential appears earlier in 13 pin, makes 1 and 2 pin be the high resistant cut-off state, and no current passes through among the R26, and 2 pin are electronegative potential.This electronegative potential reaches 13 pin through R28 again still makes 1 and 2 pin end, and is stabilized in cut-off state.Because the second the tunnel (5,3,4 pin) with the four the tunnel (12,10,11 pin) control end of switch is in parallel with 12 pin with 5 pin and be connected to 2 pin through R27, the electronegative potential of 2 pin makes this double switch end simultaneously, and wherein 11 pin of four-way switch (being connected with 40 pin of IC1) and not conducting of 10 pin (ground connection) are in the measurement state that resets so the A/D conversion is carried out as usual; Correspondingly, not yet not luminous because of second way switch of light emitting diode by (3 and 4 pin end).
Jacket casing outside handle (14) is pressed, and during Push switch K4,13 pin of first via switch are directly connected noble potential and made 1 and 2 pin conductings, produce electric current among the R26.2 pin uprise current potential and through R28, make 13 pin keep noble potential, thereby 1 and 2 pin keep conducting.The delay circuit that 2 pin noble potentials are formed through R27 and C9 again makes the four, the second way switch conducting, 10 pin of four-way switch and 11 pin conductings, with 40 pin of IC1 with " " connect, cause A/D to change and stop, keeping former display digit; 3 and 4 pin were lighted light emitting diode D5 when second way switch was connected, to show at readable number state.
R27 and C9 form delay circuit among Fig. 3, make the second, and four-way switch is than about 1 second of the late action of first via switch, to adapt to " sluggishness " of sensor and A/D converter.
When row is measured again behind the reading, only need click reset switch K3 and get final product.
The digital demonstration adopted 3 1/2 figure place sign indicating number displays.
Power supply 9V packed cell, the constant current source that the confession sensor is used is by BG4, and R10 forms, and BG4 is a field effect transistor.
Stabilized voltage supply is by BG2, BG3, stabilivolt D4 and R29, and R23 forms.
Entire circuit part of the present utility model (except that sensor and K switch 4) is contained in the casing of 150 * 95 * 30mm, is connected with five pole sockets (16) with electric fence.In addition, also can be fitted together the testing jig of foregoing circuit part with Fig. 2, type becomes one.
The utility model has the advantages that and have constant operation additional force fits automatically and data maintenance function, can make the operation additional force is a fixed value, this certain value additional force can be by adjusting the resistance R 20 among Fig. 3, the resistance of R22 is come " deduction " thus fixedly additional force and signal of telecommunication of producing, thereby eliminated the impact of additional force, improved the degree of accuracy of measuring. This device can also be kept the data of surveying get off by data holding circuit simultaneously, is convenient to reading. Again owing to subtract power Lever is linear to transmission and the conversion of power, and this device only uses 1/5th of sensor gamut, so that certainty of measurement improves greatly. It has adopted the charactron demonstration, and illumination is lower more clear like this. It is applicable to all kinds of cloth and at wire-cloth. In the weaving process of all fabrics such as universe net and in the use procedure of tensioning state, measure the size of the tension force on the fabric unit width. Reading unit is kg/cm.
Claims (6)
1, a kind of electronic digital type fabric tension tester, it comprises pressure transducer.The front and back deflector roll.Tension force is gathered roller.Direct current amplifier is characterized in that it also comprises transmitting linearly with power is gathered in conversion and subtracts power lever [6], the definite value mechanism of definite value fixing operation additional force, data holding circuit.Analog to digital conversion and decoding and driving circuit, nixie display.
2; tension tester according to claim 1; it is characterized in that lever (6) is fixed on the supporter (8) by axle (7); tension force is gathered roller (5) and is fixed on lever (6) middle part by axle (18); at lever one end effect screw (9) to the sensor sensing head is housed; locating to be equipped with the screw (10) that sensor is played the machine overload protection effect near effect screw (9); the other end at lever (6) is equipped with balancing spring (11); the axle (18) that tension force is gathered roller (5) to the active force arm of force of lever fulcrum shaft with act on screw (9) to lever fulcrum shaft be 1:3-1:6 by the two ratio of the power arm of force, the best is 1:5.
3, tension tester according to claim 1, the definite value mechanism that it is characterized in that definite value fixing operation additional force is by spring (13), handle jacket (14) and microswitch K4 form, spring (13) is enclosed within on the garden pillar buoy of frame (1) top, handle jacket (14) is enclosed within on the spring (13), the button of handle jacket (14) aligned beneath definite value K switch 4.
4, tension tester according to claim 1, it is characterized in that tension force gather roller the plain line of next bar give prominence to 1.2-2.0mm in a plane of a plain line decision bottom than two groups of deflector rolls, optimum value is 1.5mm.
5, tension tester according to claim 1 is characterized in that data holding circuit by two-way integrated analog switch IC3, definite value K switch 4, and reset switch K3, light emitting diode D5 forms.
6, tension tester according to claim 1 is characterized in that analog to digital conversion and decoding and driving circuit can adopt large scale integrated circuit IC1, also can adopt discrete component to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202104 CN87202104U (en) | 1987-02-18 | 1987-02-18 | Electronic digital fabric tensiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202104 CN87202104U (en) | 1987-02-18 | 1987-02-18 | Electronic digital fabric tensiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87202104U true CN87202104U (en) | 1988-01-27 |
Family
ID=4818300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87202104 Ceased CN87202104U (en) | 1987-02-18 | 1987-02-18 | Electronic digital fabric tensiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87202104U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545600C (en) * | 2008-02-21 | 2009-09-30 | 江苏万工科技集团有限公司 | Weft tension sensor |
| CN102914400A (en) * | 2012-10-22 | 2013-02-06 | 江苏万工科技集团有限公司 | Measuring device for fabric tensile force close to cloth fell |
| CN104483057A (en) * | 2015-01-06 | 2015-04-01 | 武汉纺织大学 | Measuring instrument for clothing pressure |
| CN109967809A (en) * | 2019-04-09 | 2019-07-05 | 南京航空航天大学 | A kind of detection of Wire EDM wire electrode tension and LCD image display device |
| CN112082686A (en) * | 2020-10-15 | 2020-12-15 | 深圳市鑫精诚科技有限公司 | Cantilevered tension sensor with overload protection |
| CN113167667A (en) * | 2018-12-13 | 2021-07-23 | 三菱电机株式会社 | Traction detection device and mobile body system provided with same |
-
1987
- 1987-02-18 CN CN 87202104 patent/CN87202104U/en not_active Ceased
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545600C (en) * | 2008-02-21 | 2009-09-30 | 江苏万工科技集团有限公司 | Weft tension sensor |
| CN102914400A (en) * | 2012-10-22 | 2013-02-06 | 江苏万工科技集团有限公司 | Measuring device for fabric tensile force close to cloth fell |
| CN102914400B (en) * | 2012-10-22 | 2015-02-25 | 江苏万工科技集团有限公司 | Measuring device for fabric tensile force close to cloth fell |
| CN104483057A (en) * | 2015-01-06 | 2015-04-01 | 武汉纺织大学 | Measuring instrument for clothing pressure |
| CN113167667A (en) * | 2018-12-13 | 2021-07-23 | 三菱电机株式会社 | Traction detection device and mobile body system provided with same |
| CN109967809A (en) * | 2019-04-09 | 2019-07-05 | 南京航空航天大学 | A kind of detection of Wire EDM wire electrode tension and LCD image display device |
| CN109967809B (en) * | 2019-04-09 | 2020-12-11 | 南京航空航天大学 | Wire cut electrical discharge machining electrode wire tension detection and LCD image display device |
| CN112082686A (en) * | 2020-10-15 | 2020-12-15 | 深圳市鑫精诚科技有限公司 | Cantilevered tension sensor with overload protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |