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    How To Solve The Problem Of Non Stop Sewing Machine

    2012/9/22 9:22:00 266

    Nailing MachineNon-StopStop Lever


    Heavy machine 373 Button sewing machine The following parts can be adjusted correctly without stopping the machine after fastening.



    (1) Belt pressing adjustment of drive pulley: unscrew the fixing nut ① of the drive belt pressing plate, and adjust the pressing plate clearance to 0.2~0.3mm with the screw in depth of the adjusting screw ②. If the adjustment gap is too large, the parking sound will be too loud, and even out of control parking will occur in serious cases.


    (2) Adjustment of stop cam and stop rod: the clearance between stop cam and stop rod is 2.4mm when the machine is running or 3~4 stitches from the stop position. If the clearance is greater than 2.4mm, it will cause instability when stopping. If the clearance is less than 2.4mm, it will cause the stop rod and stop cam to collide or fail to start when running. Adjustment method: Use a 2.4mm shim or a 3mm Allen wrench to make a plane positioning, pad it between the stop cam and the stop rod, and then tighten the fixing screw of the needle adjustment crank.


    Note: Adjust when the needle number adjusting crank does not enter the concave part of the needle number adjusting cam No parking Fault.


    In addition, the clearance between the stop rod and the stop frame is 8.5 mm. If it is greater than or less than 8.5 mm, the parking will be affected and the parking will be unstable. It can be adjusted by the adjusting nut ② of the stop spring.


    (3) Adjustment of needle number adjustment cam: when the machine is in the stop state, the gap between the roller sleeve and the cam groove is 0.8mm. The upper axis 9 of the pendulum needle can swing up and down. If there is no movement, it means that the clamping screw of the crank 8 in the pendulum needle fixed on the upper axis 9 of the pendulum needle is loose. We should tighten the clamping screw of the crank 8 in the pendulum needle.


    When the machine is in the stop state, loosen the fixing screw a of the needle number adjustment cam, and rotate the cam in its rotation direction for adjustment.


    Stop cam Stop lever When the cushion and the cushion are not worn too seriously, make the machine have a stable start and stop position through the above adjustment, and check whether the hook hook of the shuttle is too early. Adjustment method: when the needle bar is at the bottom dead center, the left side of the shuttle tip and the needle centerline should be 3mm. When the needle is lifted 2.5mm, it is believed that the machine can operate normally.

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