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[av_heading heading=’How to adjust the oil amount of the computer sewing machine？’ tag=’h2′ style=’blockquote modern-quote modern-centered’ subheading_active=” show_icon=” icon=’ue800′ font=’entypo-fontello’ size=” av-medium-font-size-title=” av-small-font-size-title=” av-mini-font-size-title=” subheading_size=” av-medium-font-size=” av-small-font-size=” av-mini-font-size=” icon_size=” av-medium-font-size-1=” av-small-font-size-1=” av-mini-font-size-1=” color=” custom_font=” subheading_color=” seperator_color=” icon_color=” margin=” margin_sync=’true’ padding=’10’ icon_padding=’10’ headline_padding=” headline_padding_sync=’true’ link=” link_target=” id=” custom_class=” template_class=” element_template=” one_element_template=” av_uid=’av-l4xi559j’ sc_version=’1.0′ admin_preview_bg=”][/av_heading]
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Except that the rotary hook needs to control the oil supply to avoid contaminating the clothes, it is not necessary to control the oil supply of each part. When the capacity of the oil pump at the needle bar is limited, the oil amount can be adjusted to a small amount by screwing the adjusting screw on the left end of the upper shaft by an appropriate amount. If the amount of oil in the hook is too large, turn the adjusting screw out.
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The sewing machine can sew cotton, linen, silk, wool, man-made fibers and other fabrics and leather, plastic, paper and other products. And derived from it, hand-pushed embroidery computer embroidery and other art forms.
Sewing machine classification:
General sewing machines: Industrial lockstitch machines include: ordinary lockstitch machines, medium and high-speed lockstitch machines, high-speed lockstitch machines, semi-automatic lockstitch machines, and fully automatic lockstitch machines. Overlock sewing machines include: two-thread overlock sewing machine, three-thread overlock sewing machine, four-thread overlock sewing machine, and five-thread overlock sewing machine.
Special sewing machine. Buttonhole machines can be divided into: flat-head buttonhole machines and round-head buttonhole machines, among which flat-head buttonhole machines can be divided into ordinary flat-head buttonhole machines, medium and high-speed flat-head buttonhole machines, high-speed flat-head buttonhole machines, and automatic continuous flat-head locks eye machine.
A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material so that one or more layers of sewing material are interlaced or sewn together. The sewing machine can sew cotton, linen, silk, wool, man-made fibers and other fabrics and leather, plastic, paper and other products. The sewing machine is generally composed of four parts: the feeding device, the base, the transmission and the accessories. Through the reasonable coordination of the movement of each mechanism, the cyclic work is performed to sew the sewing materials together.
The sewing machine needs to use lubricating oil and lubricating mechanism to lubricate and cool it during the working process. The liquid lubricating oil reduces frictional resistance, reduces mechanical wear, reduces temperature, prevents rust, reduces vibration, and washes the friction surface. The lubricating oil is mainly supplied by the oil pump, and the power source of the oil pump comes from the vertical shaft of the sewing machine. When the speed of the oil pump is too high or too low, the oil supply of the sewing machine also changes with it, and cannot reach a stable value.
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If the rotation speed of the vertical axis is too high, the oil supply will be large during the sewing process, and oil leakage and oil leakage will often occur during the sewing process; if the rotation speed is too low, the oil pump will not work effectively, the oil supply will be reduced, and the machine cannot be effectively lubricated. In addition, there are higher requirements for the lubrication of lubricating oil in special processes. For example, the machine only performs the working condition of W seam, and the start and stop time of the machine is short, so that the lubricating oil cannot reach the lubricating position, which leads to the hot situation of the rotary hook.
The oil volume adjustment method of the traditional sewing machine is manually adjusted by the oil volume adjustment screw. Affected by the machining accuracy, the oil volume adjustment screw needs to be adjusted according to the oil volume, and the oil volume cannot be adjusted automatically. The production cost, on the other hand, also reduces the competitiveness of the sewing equipment itself. In the above-mentioned patent documents, two oil pumps are used for oil supply, and the amount of oil in the lubricating structure is determined by the rotation speed of the sewing machine. Adjustment, the oil supply stability is still poor.
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Open the sewing machine, at 5CM on the right side of the shuttle bed, there is a 0.8CM slotted screw on the main bearing, which is marked with a plus sign and a minus sign, indicating the size of the oil intake. The plus sign is to increase the size of the sewing machine. First of all, we check whether the needle is installed correctly. It is best to replace it with a new needle.
If it still does not work, we then open the needle plate, turn the needle to the lowest position, and see that the distance between the hook tip and the needle is about 8mm. If it is, then raise the needle by about 2.3mm, and then check whether the tip of the hook is coincident with the center of the needle. At this time, the needle and the hook tip should not be too tight, and there should be a gap of 0.1.
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