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Plastic pulling machine

Source: Yangzhou jingzhuo experimental Machinery Factory Time of publication: Release time: June 14, 2013 Reading times: 812 times

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Jzl-d type Plastic pulling machine

It can be used to test the mechanical properties of materials, such as materials, materials and materials.
This machine is a new economic material testing machine, stepless speed regulation, equipped with force sensor and automatic elongation tracking device. During the test process, the microcomputer continuously collects the signals of force sensor and elongation automatic tracking device, and processes the formatted data according to the test requirements. It is characterized by simple use, stable performance, advanced technology, high automation level and high test precision
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1 Plastic pulling machine Main technical indicators
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1.1 range: 10N, 20n, 30n, 50N, 100N, 200N, 300N, 500N, 1kn, 2Kn, 3kn, 5kn. The maximum range of this machine is not more than 5000n.
1.2 accuracy of force value: ± 0.5% of indication value.
1.3 test speed: 10 mm / min ~ 500 mm / min
Effective distance: 9001.4 mm. (without fixture) (Standard Specification)
1.5 displacement measurement accuracy: ± 0.5% of indication value.
1.6 power supply: AC220 V ± 5% 50 Hz
Machine size: about 640 × 720 × 2000 mm, length × width × height. ?????????????????????????????????????????????????????
Machine weight: about 280 kg.
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2、 Operating environment and working conditions
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2.1 the temperature is in the range of 0 ~ 40 ℃;
2.2 the relative temperature is lower than 80%;
2.3. Independent grounding wire;
2.4 in the environment without impact and vibration;
2.5 in the environment without obvious electromagnetic field;
2.6 there should be no less than 0.7m space around the testing machine, and its working environment should be clean and free of dust;
2.7 the levelness of base and frame shall not exceed 0.2/1000.
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3、 System composition, working principle and testable items
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3.1 the system consists of three parts: host, electrical control system and digital control system.
3.2 working principle
3.2.1 mechanical transmission principle
3.4 general test items: (general display value and calculated value)
Tensile stress ● tensile strength
Tensile strength ● elongation at break
Constant stress ● constant stress elongation
● constant stress value ● tear strength
● force at any point ● elongation at any point
Pull out force ● adhesion force and peak value calculation value

The main machine of Jiangdu jingzhuo tensile machine is composed of motor and controller, ball screw, guide pillar, moving beam and limit device. The mechanical transmission sequence is as follows:
Motor synchronous pulley lead screw test bench
4.2.2 force measuring system: a tension sensor is installed on the moving beam of the host, and the lower end of the sensor is connected with the upper holder. During the test, the force of the sample is changed into electrical signal by the force sensor and input to the microcomputer acquisition and control system.
4.2.3 automatic elongation tracking device: this device is used to measure the deformation of the sample. It is clamped on the sample by two tracking clamps with minimal resistance. As the sample is deformed under tension, the distance between the two tracking clamps is also increased correspondingly. The tracking clamp changes the linear motion into rotary motion through the wire rope and pulley, and converts the displacement into electrical signal through the tracking encoder, which is input into the microcomputer acquisition and control Control system.
4.3 limit protection device and fixture
4.3.1 limit protection device
Limit protection device is an important part of the machine. The limiting rod is fixed on the main engine, and there are two upper and lower adjustable retaining rings on the limit rod. During the test, when the stop and the retaining ring touch each other, it will drive the limit rod to move and make the limit device
Cut off the path in this direction, the main engine stops running, at this time, it runs in the opposite direction, and the testing machine can work normally. By adjusting the position of the retaining ring on the limiting rod, the travel of the moving beam can be limited, which provides a greater convenience, safety and reliable protection for the test.
4.3.2 fixture
The company has a variety of general and special fixtures for holding samples, such as wedge-shaped jaw clamp, winding metal wire clamp, film tension clamp, paper tension clamp, etc., which can meet the requirements of metal and non-metallic sheet, strip, foil, strip, line, fiber, plate, bar, block, rope, cloth, net and other material performance test, and can be selected according to user requirements.
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5. Installation and commissioning
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5.1 mechanical installation
Move the host vertically to the place of use, adjust the anchor screw at the bottom of the host, and check the level of the worktable with a level gauge (the horizontal and vertical levelness is 0.2/1000).
5.2 electrical installation
5.2.1 plug the force sensor plug into the force sensor interface and the displacement sensor plug into the displacement sensor interface.
5.2.2 after the above work is completed, the system can be powered on. There is a boat shaped switch on the back panel of the microcomputer acquisition system. Put the switch in the on position, and then the power is connected.
5.2.3 turn on the power of the host and rotate the power switch.
5.2.4 the microcomputer system must be preheated for 20min before it can work normally.
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6. Use and operation of instrument
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6.1 first of all, check and confirm that the connecting cable of the testing machine host and microcomputer control system is correct.
Press the "emergency shutdown" button ("shut down" button) or "shut down" button. Turn on the power supply of microcomputer control system.
7. Annex
7.1 one year warranty and one Chinese operation manual for tensile testing machine.
7.2 a set of standard tensile testing machine fixture will be presented randomly (other fixtures can be purchased).
7.3 a special test software for tensile testing machine.
4. One set of brand color computer printer
8. Precautions
8.1 before starting the machine, it is necessary to check whether the connecting wire, plug, socket, power plug and socket between the CNC system and the host machine are correct or loose, and the machine can be started only after confirming the correctness (for example, if the grounding wire under the power socket in the controller of the numerical control system is loose, the host will lose control). Please keep in mind the start-up sequence, first turn on the power supply of the testing machine host, and then turn on the power supply of the numerical control system. When shutting down, turn off the power supply of the main machine of the testing machine first, and then turn off the power supply of the numerical control system.
8.2 it is very important to check the position of the upper and lower limit retaining rings. A certain distance should be kept between the two clamps to avoid damage to parts, especially sensors, due to misoperation or out of control of the host.
8.3 during the test, please do not press the key on the microcomputer control system.
8.4 select the fixture according to the specific conditions of the test to avoid damaging the fixture.
8.5 in case of sudden power failure, please turn off all power supply immediately and start the machine in sequence after confirming that the power supply is stable. Frequent interruption of power supply can easily damage microcomputer control system and motor speed regulation system.
8.6 the tester should not stay away from the machine when the main engine is running.
8.7 the input tensile speed value must be equal to the actual tensile speed of testing machine, especially in tearing and peeling.
8.8 when the maximum fracture force of the specimen is not clear, the tensile test is not allowed, otherwise the sensor will be damaged due to overload.

9、 Test software description
9.1 the test software under the Windows XP operating system can realize the control modes of fixed load, fixed position and fixed time to meet different test requirements.

9.2 the test software can switch between simplified Chinese, traditional Chinese, English and other languages randomly.

9.3 the units of force and displacement can be switched freely.

9.4 during the test, the load time, load displacement, displacement time, stress-strain and load two-point extension display can be switched immediately.

9.5 the current value and maximum value of load and displacement displayed in the test process can automatically calculate the tensile strength, compressive strength, elongation, tear strength, peel strength, bond strength and other parameters of the material when inputting area and gauge data.

9.6 multiple material tests can be used for curve overlap comparison, and the maximum value, minimum value and average value of test results can be displayed.

9.7 the test results can be saved automatically and saved manually.

9.8 after the test, the data and graphic report of batch sample and single sample can be printed.

9.9 the software can easily reserve the function of adding special function module for customers

9. Enjoy lifelong service and free upgrade.
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10. Instrument maintenance and repair
10.1 add lubricating oil to the sliding parts, apply anti rust oil to the easily rusty parts, and clean and oil the lead screw and guide pillar once every three months. When refueling, loosen the folding cloth on the upper part of the moving beam and use high-grade grease or hyperbolic gear oil.
10.2 prevent high temperature, excessive humidity, dust, corrosive media, water and other intrusion into the instrument.
10.3 always keep clean and prevent corrosion.
10.4 check regularly to keep the integrity of its parts.
10.5 conduct periodic verification once a year.
10.6 record the usage.

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