Application of winding torsion testing machine

Please carefully read the relevant product standards before operating the winding torsion testing machine.

1. Winding test (can refer to standards such as GB/T4909.7-2009, GB/T3428-2002, etc.):

After connecting the power supply, turn on the power switch and the red indicator light will turn on to indicate that the power supply is normal.

Rotate the black handle with a disc next to the right gripper to separate it from the travel switch. Ensure that the machine is powered on.

1.1 Sample length: Cut two samples from the surface inspection qualified samples, and the sample length should meet the specified number of winding turns. (Refer to GB/T3428-2002, 10.3, c and GB/T4907.7-2009,5.4, which generally have 8 turns)

1.2 Selection of winding rod: Select the winding core rod according to the standard specified winding diameter (refer to Table 3, Table 4, Table 5 in GB/T3428-2002), use a wrench to open the left clamp (three jaw chuck) to clamp the left end of the core rod, rotate the circular small knob on the side of the right clamp to allow the right clamp to rotate freely, and adjust the distance of the right clamp to clamp the right end of the core rod. Thread the wire from the wire plate and tighten the left clamp wedge pressure head to press one end of the wire, manually wrap half a circle on the core rod, and clamp the other end with the wire plate to keep the sample in a tight state.

1.3 Speed adjustment: Open the "forward" button and adjust the speed (refer to GB/T4909.7-2009, 5.4 for speed not exceeding 10 times/minute, refer to GB/T3428-2002,10.3, C for speed not exceeding 15 times/minute). The machine rotates counterclockwise to evenly arrange the wires on the core rod in a spring shape as the effective sample. After the number of turns of the wires reaches the standard, press the "stop" button to stop the machine from winding.

1.4 Winding and twisting test machine test completed: Open the left and right grippers, remove the core rod, retract the wire, and disconnect the power supply.

1.5 Determination of test results:

1.5.1 Test results: Check the surface of the test part of the specimen with normal vision and record it.

1.5.2 Evaluation: If the test results of each sample comply with the relevant product standards, it is judged as qualified.

Operation instructions for winding and twisting testing machine:

After connecting the power supply, turn on the power switch and the red indicator light will turn on to indicate that the power supply is normal. Rotate the black handle with a disc next to the right gripper to separate it from the travel switch. Ensure that the machine is powered on. 1. Sample length: Cut two samples from the surface inspection qualified sample, and the sample length should meet the specified number of winding turns. (Refer to GB/T3428-2002, 10.3, c and GB/T4907.7-2009,5.4, which generally have 8 turns) 2. Selection of winding rod: Select the winding rod according to the standard specified winding diameter (refer to Tables 3, 4, and 5 in GB/T3428-2002), use a wrench to open the left clamp (three jaw chuck) to clamp the left end of the core rod, rotate the circular small knob on the side of the right clamp to allow the right clamp to rotate freely, and adjust the distance of the right clamp to clamp the right end of the core rod. Thread the wire through the wire board and tighten the wedge-shaped pressure head of the left clamp to clamp one end of the wire. Manually wrap half a circle on the core rod, and clamp the other end with the wire board to make it rotate freely. The sample is in a taut state. 3. Speed adjustment: Open the "forward" button and adjust the speed (refer to GB/T4909.7-2009, 5.4 for speed not exceeding 10 times/minute, refer to GB/T3428-2002,10.3, C for speed not exceeding 15 times/minute). The machine rotates counterclockwise to evenly arrange the wires on the core rod in a spring shape as the effective sample. After the number of turns of the wires reaches the standard, press the "stop" button to stop the machine from winding. 4. Test completed: Open the left and right clamps, remove the core rod, retract the wire, and disconnect the power supply. Winding and twisting testing machine