CN110631917A - Weaving product strength detecting system - Google Patents
Weaving product strength detecting system Download PDFInfo
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- CN110631917A CN110631917A CN201911102788.6A CN201911102788A CN110631917A CN 110631917 A CN110631917 A CN 110631917A CN 201911102788 A CN201911102788 A CN 201911102788A CN 110631917 A CN110631917 A CN 110631917A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
Abstract
The invention provides a strength detection system for a woven product, which comprises a locking block, a lifting rod, a cross rod, a spring, a force sensor, a woven product to be detected, a limiting rod, a sleeve, a slide rail, a slide block, a ball screw, a screw nut, a coupler, a screw fixing seat, a speed reducer, a stepping motor, an input device, a signal processing circuit, an AD converter, a central processing device, a display device and a storage device.
Description
Technical Field
The invention relates to the field of woven product testing, in particular to a woven product strength detection system.
Background
The manual industry in China has a long development history, the manual industry is rich in types, and the products are various. Among them, the weaving industry is the main handwork industry in China. With the development of the weaving industry, the testing of woven products is carried out.
In the prior art, when the strength of a woven product is tested, a standard force output device is often adopted to generate pulling force so as to test the strength of the woven product, but the standard force output device generates a pulling force signal with specific frequency and amplitude according to the requirement of a user, the generated pulling force signal has low precision, in the later period, a force value input by the user is often used as an actual pulling force signal of the standard force output device so as to determine the strength of the woven product, and the method is often low in test precision and easy to cause errors.
Disclosure of Invention
Therefore, in order to overcome the above problems, the present invention provides a strength detecting system for a woven product, which comprises a locking block, a lifting rod, a cross rod, a spring, a force sensor, a woven product to be tested, a limiting rod, a sleeve, a slide rail, a slide block, a ball screw, a screw nut, a coupling, a screw fixing seat, a speed reducer, a stepping motor, an input device, a signal processing circuit, an AD converter, a central processing device, a display device and a storage device, wherein the stepping motor drives the ball screw to rotate through the speed reducer, the rotation of the ball screw is converted into linear displacement of the screw nut, therefore, the weaving product to be tested is under downward tension, the force sensor is installed by adjusting the lifting rod, and the force sensor is used for collecting tension signals of the weaving product to be tested (the tension value measured by the force sensor minus the gravity value of the force sensor is the tension value of the weaving product to be tested).
The strength detection system for the weaving product comprises a locking block, a lifting rod, a cross rod, a spring, a force sensor, the weaving product to be detected, a limiting rod, a sleeve, a sliding rail, a sliding block, a ball screw, a screw nut, a coupling, a screw fixing seat, a speed reducer, a stepping motor, an input device, a signal processing circuit, an AD converter, a central processing device, a display device and a storage device.
Wherein, the output end of the stepping motor is connected with the input end of the reducer, the reducer is fixed on the cross bar through screws, the reducer is connected with the lead screw fixing seat through a coupling, the lead screw fixing seat is connected with the ball screw, a lead screw nut is sleeved outside the ball screw, the slide block is arranged on the slide rail, the stepping motor provides power through the reducer to drive the slide block to move on the slide rail, the limiting rod is arranged at one end of the slide rail and is used for limiting the displacement of the slide block within a preset range, the slide block is connected with one end of the sleeve, the other end of the sleeve passes through the limiting rod and is connected with one end of a weaving product to be tested, the other end of the weaving product to be tested is connected with the lower end of the force sensor, the other end of the force sensor is connected with the lower end of the spring, the cross bar is fixed through a bracket; step motor passes through the reduction gear and drives the ball rotation, and the rotation conversion of ball is the linear displacement of screw nut to make the weaving product that awaits measuring receive decurrent pulling force, through adjusting the installation that lifter realized force sensor, lifter, spring, force sensor, the weaving product that awaits measuring, sleeve, slider, ball, screw nut, shaft coupling, lead screw fixing base, the output shaft of reduction gear and step motor's drive shaft all are in same central line.
The force sensor is used for detecting tension signals borne by a weaving product to be detected, the output end of the force sensor is connected with the input end of the signal processing circuit, the output end of the signal processing circuit is connected with the input end of the AD converter, the output end of the AD converter is connected with the input end of the central processing device, the input device is used for inputting rotating speed instructions of the stepping motor, the output end of the input device is connected with the input end of the central processing device, the central processing device transmits the received rotating speed instructions of the stepping motor to the stepping motor, the stepping motor operates according to the received rotating speed instructions, the output end of the central processing device is connected with the input end of the display device, the output end of the central processing device is connected with the input end of the storage device, the central processing device transmits the received rotating speed instructions and the received tension signals to the display device for display, and the central processing device transmits the.
Preferably, the storage device further comprises a data reading interface, and the peripheral reads the rotating speed command and the tension signal stored in the storage device according to the storage time through the data reading interface.
Preferably, the force sensor is used for detecting tension signals borne by a woven product to be detected, the collected tension signals are converted into voltage signals V0, the voltage signals V0 are transmitted to the signal processing circuit, V1 is the voltage signals processed by the signal processing circuit, the signal processing circuit comprises a signal amplification unit and a signal filtering unit, the output end of the force sensor is connected with the input end of the signal amplification unit, the output end of the signal amplification unit is connected with the input end of the signal filtering unit, and the output end of the signal filtering unit is connected with the input end of the AD converter.
Preferably, the signal amplifying unit includes an operational amplifier A1, capacitors C1-C3, and resistors R1-R7.
Wherein, the output end of the force sensor is connected with one end of a resistor R1, the other end of a resistor R1 is grounded, one end of a resistor R1 is further connected with one end of a capacitor C1, one end of a resistor R3 is grounded, the other end of a resistor R3 is connected with the other end of a capacitor C1, one end of a resistor R2 is connected with the non-inverting input end of an operational amplifier A1, one end of a resistor R2 is further connected with the other end of a resistor R3, the other end of a resistor R2 is connected with a DC power supply Vcc, the V + end of an operational amplifier A1 is connected with a DC power supply Vcc, the V-end of an operational amplifier A1 is grounded, one end of a capacitor C2 is grounded, the other end of a capacitor C2 is connected with one end of a resistor 686R 9, the other end of a resistor R4 is connected with the inverting input end of an operational amplifier A1, the other end of a resistor R4 is connected with one end of a resistor R5, the other end of a resistor, the other end of the capacitor C3 is connected with one end of the resistor R6, one end of the resistor R7 is grounded, the other end of the resistor R7 is connected with the other end of the resistor R6, and the other end of the resistor R6 is connected with the input end of the signal filtering unit.
Preferably, the signal filtering unit includes resistors R8-R11, capacitors C4-C7, and an operational amplifier A2.
Wherein, the output end of the signal amplifying unit is connected with one end of a capacitor C4, the other end of the capacitor C4 is connected with one end of a resistor R8, the other end of a resistor R8 is connected with a DC power supply Vcc, one end of a resistor R9 is grounded, the other end of a resistor R9 is connected with the other end of a capacitor C4, the other end of a resistor R9 is connected with one end of a resistor R10, one end of a resistor R10 is connected with one end of a resistor R11, the other end of a resistor R10 is connected with one end of a capacitor C5, the other end of a capacitor C5 is connected with the inverting input end of an operational amplifier A2, the other end of a capacitor C5 is further connected with the output end of an operational amplifier A2, the V + end of an operational amplifier A2 is connected with the DC power supply Vcc, the V-end of an operational amplifier A2 is grounded, one end of a capacitor C9 is grounded, the other end of a capacitor C6 is connected with the non-, one end of the capacitor C7 is connected with the output end of the operational amplifier a2, the other end of the capacitor C7 is connected with the input end of the AD converter, and the signal filtering unit transmits the voltage signal V1 to the AD converter.
Preferably, the central processing unit is a C8051F single chip microcomputer.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention provides a strength detection system for a weaving product, which comprises a locking block, a lifting rod, a cross rod, a spring, a force sensor, a weaving product to be detected, a limiting rod, a sleeve, a slide rail, a slide block, a ball screw, a screw nut, a coupler, a screw fixing seat, a speed reducer, a stepping motor, an input device, a signal processing circuit, an AD converter, a central processing device, a display device and a storage device.
(2) The invention also provides a weaving product strength detection system, which is characterized in that the signal acquired by the force sensor is a weak voltage signal, so that the signal amplification unit amplifies the voltage V0 output by the force sensor through an operational amplifier A1, capacitors C1-C3 and resistors R1-R7, and the signal amplification unit consisting of the operational amplifier A1, the capacitors C1-C3 and the resistors R1-R7 only has drift of 1.45 muV/DEG C, offset within 2 muV, 100pA bias current and noise of 2.45nV within a 0.1Hz to 10Hz broadband. The signal filtering unit uses the resistors R8-R11, the capacitors C4-C7 and the operational amplifier A2 to filter the amplified electric signals, so that the precision of tension detection is improved.
Drawings
FIG. 1 is a block diagram of a woven product strength detection system of the present invention;
FIG. 2 is a schematic view of a woven product strength detection system of the present invention;
FIG. 3 is a waveform of signals collected by the force sensor of the present invention;
fig. 4 is a circuit diagram of a signal processing circuit of the present invention.
Reference numerals:
1-a locking block; 2-a lifting rod; 3-a cross bar; 4-a spring; 5-a force sensor; 6-weaving products to be tested; 7-a limiting rod; 8-a sleeve; 9-a slide rail; 10-a slide block; 11-ball screw; 12-a lead screw nut; 13-a coupler; 14-lead screw fixing seat; 15-a reducer; 16-step motor.
Detailed Description
The strength detection system for woven products according to the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-2, the strength detection system for a woven product provided by the invention comprises a locking block 1, a lifting rod 2, a cross rod 3, a spring 4, a force sensor 5, a woven product 6 to be detected, a limiting rod 7, a sleeve 8, a slide rail 9, a slide block 10, a ball screw 11, a screw nut 12, a coupling 13, a screw fixing seat 14, a speed reducer 15, a stepping motor 16, an input device, a signal processing circuit, an AD converter, a central processing device, a display device and a storage device.
Wherein, the output end of a stepping motor 16 is connected with the input end of a speed reducer 15, the speed reducer 15 is fixed on a cross bar through a screw, the speed reducer 15 is connected with a lead screw fixing seat 14 through a coupling 13, the lead screw fixing seat 14 is connected with a ball screw 11, a lead screw nut 12 is sleeved outside the ball screw 11, a slider 10 is arranged on a slide rail 9, the stepping motor 16 provides power through the speed reducer 15 to drive the slider 10 to move on the slide rail 9, a limit rod 7 is arranged at one end of the slide rail 9, the limit rod 7 is used for limiting the displacement of the slider 10 within a preset range, the slider 10 is connected with one end of a sleeve 8, the other end of the sleeve 8 passes through the limit rod 7 and then is connected with one end of a to-be-tested weaving product 6, the other end of the to-be-tested weaving product 6 is connected with the lower end of a force sensor, the lifting rod 2 penetrates through the cross rod 3 and is fixedly arranged on the cross rod 3 through the locking block 1, and the cross rod 3 is fixed through the bracket; step motor 16 drives ball 11 through reduction gear 15 and rotates, ball 11's rotation converts the linear displacement of lead screw nut 12 into, thereby make the weaving product 6 that awaits measuring receive decurrent pulling force, realize force sensor's 5 installation through adjusting lifter 2, spring 4, force sensor 5, the weaving product 6 that awaits measuring, sleeve 8, slider 10, ball 11, lead screw nut 12, shaft coupling 13, lead screw fixing base 14, the output shaft of reduction gear 15 and step motor 16's drive shaft all are in same central line.
Wherein, the force sensor 5 is used for detecting the tension signal borne by the weaving product 6 to be detected, the output end of the force sensor 5 is connected with the input end of the signal processing circuit, the output end of the signal processing circuit is connected with the input end of the AD converter, the output end of the AD converter is connected with the input end of the central processing device, the input device is used for inputting the rotating speed instruction of the stepping motor 16, the output end of the input device is connected with the input end of the central processing device, the central processing device transmits the received rotating speed instruction of the stepping motor 16 to the stepping motor 16, the stepping motor 16 operates according to the received rotating speed instruction, the output end of the central processing device is connected with the input end of the display device, the output end of the central processing device is connected with the input end of the storage device, the central processing device transmits the received, and the central processing device transmits the received rotating speed instruction and the received tension signal to the storage device for storage.
In the above embodiment, the strength detecting system for a woven product provided by the invention comprises a locking block, a lifting rod, a cross rod, a spring, a force sensor, a woven product to be detected, a limiting rod, a sleeve, a slide rail, a slide block, a ball screw, a screw nut, a coupler, a screw fixing seat, a speed reducer, a stepping motor, an input device, a signal processing circuit, an AD converter, a central processing device, a display device and a storage device, wherein the stepping motor drives the ball screw to rotate through the speed reducer, the rotation of the ball screw is converted into linear displacement of the screw nut, so that the woven product to be detected is subjected to downward tension, the force sensor is installed by adjusting the lifting rod, the force sensor is used for collecting tension signals applied to the woven product to be detected (the tension value applied to the woven product to be detected minus the gravity value of the force sensor is, the waveform of the tension signal collected by the force sensor 5 is shown in fig. 3.
Specifically, the storage device further comprises a data reading interface, and the peripheral reads the rotating speed instruction and the tension signal which are stored in the storage device according to the storage time through the data reading interface.
Specifically, force sensor 5 is used for detecting the pulling force signal that weaving product 6 that awaits measuring receives, the pulling force signal conversion that will gather is voltage signal V0, and transmit voltage signal V0 to signal processing circuit, V1 is the voltage signal after signal processing circuit handles, signal processing circuit includes signal amplification unit and signal filtering unit, force sensor 5's output is connected with signal amplification unit's input, signal amplification unit's output is connected with signal filtering unit's input, signal filtering unit's output is connected with AD converter's input.
As shown in fig. 4, the signal amplifying unit includes an operational amplifier a1, capacitors C1-C3, and resistors R1-R7.
Wherein, the output end of the force sensor 5 is connected with one end of a resistor R1, the other end of a resistor R1 is grounded, one end of a resistor R1 is further connected with one end of a capacitor C1, one end of a resistor R3 is grounded, the other end of a resistor R3 is connected with the other end of a capacitor C1, one end of a resistor R2 is connected with the non-inverting input end of an operational amplifier a1, one end of a resistor R2 is further connected with the other end of a resistor R3, the other end of a resistor R2 is connected with a dc power supply Vcc, the V + end of an operational amplifier a1 is connected with a dc power supply Vcc, the V-end of an operational amplifier a1 is grounded, one end of a capacitor C2 is grounded, the other end of a capacitor C2 is connected with one end of a resistor 686r 9, the other end of a resistor R4 is connected with the inverting input end of an operational amplifier a1, the other end of a resistor R4 is connected with one end of a resistor R5, the other end of a resistor R86, the other end of the capacitor C3 is connected with one end of the resistor R6, one end of the resistor R7 is grounded, the other end of the resistor R7 is connected with the other end of the resistor R6, and the other end of the resistor R6 is connected with the input end of the signal filtering unit.
Specifically, the signal filtering unit comprises resistors R8-R11, capacitors C4-C7 and an operational amplifier A2.
Wherein, the output end of the signal amplifying unit is connected with one end of a capacitor C4, the other end of the capacitor C4 is connected with one end of a resistor R8, the other end of a resistor R8 is connected with a DC power supply Vcc, one end of a resistor R9 is grounded, the other end of a resistor R9 is connected with the other end of a capacitor C4, the other end of a resistor R9 is connected with one end of a resistor R10, one end of a resistor R10 is connected with one end of a resistor R11, the other end of a resistor R10 is connected with one end of a capacitor C5, the other end of a capacitor C5 is connected with the inverting input end of an operational amplifier A2, the other end of a capacitor C5 is further connected with the output end of an operational amplifier A2, the V + end of an operational amplifier A2 is connected with the DC power supply Vcc, the V-end of an operational amplifier A2 is grounded, one end of a capacitor C9 is grounded, the other end of a capacitor C6 is connected with the non-, one end of the capacitor C7 is connected with the output end of the operational amplifier a2, the other end of the capacitor C7 is connected with the input end of the AD converter, and the signal filtering unit transmits the voltage signal V1 to the AD converter.
In the above embodiment, the noise of the signal processing circuit is within 2.45nV, the drift is 1.45 μ V/° c, the model of the operational amplifier a1 is LT1012, and the model of the operational amplifier a2 is LT 1192.
In the signal amplifying unit, the resistance of the resistor R1 is 50 Ω, the resistance of the resistor R2 is 50 Ω, the resistance of the resistor R3 is 100 Ω, the resistance of the resistor R4 is 10 Ω, the resistance of the resistor R5 is 1k Ω, the resistance of the resistor R6 is 50 Ω, the resistance of the resistor R7 is 50 Ω, the capacitance of the capacitor C1 is 0.01 μ F, the capacitance of the capacitor C2 is 0.01 μ F, and the capacitance of the capacitor C3 is 0.1 μ F.
The signal amplifying unit is an in-phase amplifying circuit, the signal amplifying unit provided by the invention has higher input impedance, the gain of the signal amplifying unit is set by using a feedback resistor R5 and a gain resistor R4, and the signal amplifying unit comprises the following components:
given the circuit gain, there are:
in a specific test, the gain of the signal amplification unit was set to not less than 1/2 (-6 dB), and the unity gain of the operational amplifier a1 was stable.
The signal amplification unit generates a virtual ground with a pair of voltage dividing resistors R6 and R7 after the coupling capacitor C1 at the non-inverting input of the operational amplifier a1 to raise the operating point of the operational amplifier a1 between ground and the voltage of the dc power supply Vcc.
Coupling capacitors C1 and C3 are used in the signal amplification unit to isolate the front stage and the rear stage of an operational amplifier A1, the virtual ground of a gain resistor R4 and the real ground are also isolated by using a coupling capacitor C2, the coupling capacitors C1-C3 have low impedance at the working frequency, and the capacities of the coupling capacitors C1-C3 cannot be so small as to directly influence the gain of the operational amplifier A1 during specific tests.
In the signal filtering unit, the resistance of the resistor R8 is 100k Ω, the resistance of the resistor R9 is 100k Ω, the resistance of the resistor R10 is 1k Ω, the resistance of the resistor R11 is 1k Ω, the capacitance of the capacitor C4 is 1 μ F, the capacitance of the capacitor C5 is 0.002 μ F, the capacitance of the capacitor C6 is 0.001 μ F, the capacitance of the capacitor C7 is 0.01 μ F, and the capacitance of the capacitor C8 is 1 μ F
Wherein C2= C1 × 2, and has:
wherein f is the working frequency of the signal filtering unit.
Further, C4= C8=1000 × C6.
Because the signal collected by the force sensor 5 is a weak voltage signal, the signal amplification unit amplifies the voltage V0 output by the force sensor 5 through the operational amplifier A1, the capacitors C1-C3 and the resistors R1-R7, and the signal amplification unit consisting of the operational amplifier A1, the capacitors C1-C3 and the resistors R1-R7 has drift of 1.45 muV/DEG C, offset within 2 muV, bias current of 100pA and noise of 2.45nV within a broadband of 0.1Hz to 10 Hz. The signal filtering unit uses the resistors R8-R11, the capacitors C4-C7 and the operational amplifier A2 to filter the amplified electric signals, so that the precision of tension detection is improved.
Specifically, the force sensor 5 is a high-precision tension and pressure sensor, the bearing load range is-500N =500N, the sensor can bear tension and pressure, and only tension is applied in the invention. Furthermore, a strain gauge type load sensor is adopted, 4 strain resistors inside the strain gauge type load sensor form a bridge, and when the sensor bears load, the resistance of a bridge arm can change. The sensor requires an external excitation to operate with a sensitivity of 3.08589mV/V, the voltage output produced by a single excitation voltage under full load conditions.
Specifically, the central processing unit is a C8051F single chip microcomputer.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The strength detection system for the weaving products is characterized by comprising a locking block (1), a lifting rod (2), a cross rod (3), a spring (4), a force sensor (5), the weaving products to be detected (6), a limiting rod (7), a sleeve (8), a sliding rail (9), a sliding block (10), a ball screw (11), a screw nut (12), a coupler (13), a screw fixing seat (14), a speed reducer (15), a stepping motor (16), an input device, a signal processing circuit, an AD converter, a central processing device, a display device and a storage device;
wherein, the output end of the stepping motor (16) is connected with the input end of the speed reducer (15), the speed reducer (15) is fixed on a cross rod through a screw, the speed reducer (15) is connected with the lead screw fixing seat (14) through the coupler (13), the lead screw fixing seat (14) is connected with the ball screw (11), the lead screw nut (12) is sleeved outside the ball screw (11), the sliding block (10) is arranged on the sliding rail (9), the stepping motor (16) provides power through the speed reducer (15) to drive the sliding block (10) to move on the sliding rail (9), the limiting rod (7) is arranged at one end of the sliding rail (9), the limiting rod (7) is used for limiting the displacement of the sliding block (10) within a preset range, and the sliding block (10) is connected with one end of the sleeve (8), the other end of the sleeve (8) penetrates through the limiting rod (7) and then is connected with one end of a woven product (6) to be detected, the other end of the woven product (6) to be detected is connected with the lower end of the force sensor (5), the other end of the force sensor (5) is connected with the lower end of the spring (4), the other end of the spring (4) is fixedly arranged at the lower end of the lifting rod (2), the lifting rod (2) penetrates through the cross rod (3) and then is fixedly arranged on the cross rod (3) through the locking block (1), and the cross rod (3) is fixed through a support; the stepping motor (16) drives the ball screw (11) to rotate through the speed reducer (15), the rotation of the ball screw (11) is converted into linear displacement of the screw nut (12), so that the to-be-tested woven product (6) is subjected to downward tension, the force sensor (5) is installed by adjusting the lifting rod (2), and the lifting rod (2), the spring (4), the force sensor (5), the to-be-tested woven product (6), the sleeve (8), the sliding block (10), the ball screw (11), the screw nut (12), the coupler (13), the screw fixing seat (14), an output shaft of the speed reducer (15) and a driving shaft of the stepping motor (16) are all located on the same central line;
wherein, the force sensor (5) is used for detecting a tension signal borne by the weaving product (6) to be detected, the output end of the force sensor (5) is connected with the input end of the signal processing circuit, the output end of the signal processing circuit is connected with the input end of the AD converter, the output end of the AD converter is connected with the input end of the central processing device, the input device is used for inputting a rotating speed instruction of the stepping motor (16), the output end of the input device is connected with the input end of the central processing device, the central processing device transmits the received rotating speed instruction of the stepping motor (16) to the stepping motor (16), the stepping motor (16) operates according to the received rotating speed instruction, the output end of the central processing device is connected with the input end of the display device, and the output end of the central processing device is connected with the input end of the storage device, the central processing device transmits the received rotating speed instruction and the received tension signal to the display device for displaying, and the central processing device transmits the received rotating speed instruction and the received tension signal to the storage device for storing.
2. The system of claim 1, wherein the storage device further comprises a data reading interface, and the peripheral device reads the stored rotation speed command and the stored tension signal stored in the storage device according to the storage time through the data reading interface.
3. The system for detecting the strength of the woven product according to claim 1, wherein the force sensor (5) is configured to detect a tension signal applied to the woven product (6) to be detected, convert the collected tension signal into a voltage signal V0, and transmit a voltage signal V0 to the signal processing circuit, V1 is the voltage signal processed by the signal processing circuit, the signal processing circuit includes a signal amplification unit and a signal filtering unit, an output end of the force sensor (5) is connected to an input end of the signal amplification unit, an output end of the signal amplification unit is connected to an input end of the signal filtering unit, and an output end of the signal filtering unit is connected to an input end of the AD converter.
4. The woven product strength detection system of claim 3, wherein the signal amplification unit comprises an operational amplifier A1, capacitors C1-C3, and resistors R1-R7;
wherein, the output end of the force sensor (5) is connected with one end of a resistor R1, the other end of the resistor R1 is grounded, one end of a resistor R1 is also connected with one end of a capacitor C1, one end of a resistor R3 is grounded, the other end of a resistor R3 is connected with the other end of a capacitor C1, one end of a resistor R2 is connected with the non-inverting input end of an operational amplifier A1, one end of a resistor R2 is also connected with the other end of a resistor R3, the other end of a resistor R2 is connected with a direct current power supply Vcc, the V + end of an operational amplifier A1 is connected with the direct current power supply Vcc, the V-end of an operational amplifier A1 is grounded, one end of a capacitor C2 is grounded, the other end of a capacitor C2 is connected with one end of a resistor R4, the other end of a resistor R4 is connected with the inverting input end of an operational amplifier A1, the other end of a resistor R4 is, one end of a capacitor C3 is connected with the output end of the operational amplifier A1, the other end of a capacitor C3 is connected with one end of a resistor R6, one end of the resistor R7 is grounded, the other end of a resistor R7 is connected with the other end of a resistor R6, and the other end of the resistor R6 is connected with the input end of the signal filtering unit.
5. The woven product strength detection system of claim 4, wherein the signal filtering unit comprises resistors R8-R11, capacitors C4-C7, and an operational amplifier A2;
wherein, the output end of the signal amplifying unit is connected with one end of a capacitor C4, the other end of the capacitor C4 is connected with one end of a resistor R8, the other end of a resistor R8 is connected with a DC power supply Vcc, one end of a resistor R9 is grounded, the other end of a resistor R9 is connected with the other end of a capacitor C4, the other end of a resistor R9 is connected with one end of a resistor R10, one end of a resistor R10 is connected with one end of a resistor R11, the other end of a resistor R10 is connected with one end of a capacitor C5, the other end of a capacitor C5 is connected with the inverting input end of an operational amplifier A2, the other end of a capacitor C5 is further connected with the output end of an operational amplifier A2, the V + end of an operational amplifier A2 is connected with the DC power supply Vcc, the V-end of an operational amplifier A2 is grounded, one end of a capacitor C9 is grounded, the other end of a capacitor C6 is connected with the non-inverting, one end of the capacitor C7 is connected with the output end of the operational amplifier a2, the other end of the capacitor C7 is connected with the input end of the AD converter, and the signal filtering unit transmits the voltage signal V1 to the AD converter.
6. The system for detecting the strength of a woven product according to any one of claims 1 to 5, wherein the central processing unit is a C8051F single-chip microcomputer.
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