What Are The Adjusting Techniques Of The Claw Front Gear?

How to adjust the front gear? Front gear It is the most common equipment in shoe machine. It is convenient, quick, simple and efficient. However, because of the high cost of intelligent computer control before automatic gluing, many shoe factories have chosen two times the price. Claw front gear 。 The claw front gear machine also causes many shoe factory teachers to have a headache on the problem of adjusting the machine. Next, Xiaobian shares the adjustment technology of the claw front gear.

First is the paw adjustment (position, angle, radian, pressure): first, adjust the claw plate to the middle position and adjust the position of the paw with the middle last; two, the balance distance of the paw can be lifted to 5mm after the three or four claw is arranged; three, the center line of the middle claw arc has 7 to 10mm clearance to the center line of the inner supporting platform, the middle claw from the supporting platform, and the clearance is easy to sweep the middle bottom; four, adjust the position of the left 234 paw with the left foot last head, and adjust the position of the right 234 paw with the right foot last. Each claw is arranged according to the figure of the last one. Five, do not touch each claw, but the smaller the gap, the better. The height of each claw is about 2mm away from the sweeping knives. Six, the paw pressure is the principle of holding the upper shoe not slippage, causing injury to the vamp in the general assembly, and breaking up in the rising process.

Next is the adjustment time of the front gear movement (paw release time, the time of supporting platform fall down, the pressing time of the pressing head, the time of repressing the bunch holder, the action time and the reduction time of the head holder): first, the selection of the cutter head is slightly larger than that of the last one; the two is that the claw begins to release when the sweep is swept around 1 ~ 2mm; three, the support platform will be lowered before 2mm; four, the pressure head two times will be pressed at the finish of the sweeping tool or the forward point action, and the two pressure opening will be advantageous to the thicker shoe upper, but it will damage the thin shoe upper.

Then the adjustment of the front support platform (the upper limit, the lower limit, the elevation angle, the position, the rising speed, the rising speed of the supporting platform, and the angle of the supporting frame) should be adjusted. Shoe upper 。 The inner supporting table angle matches the bottom of the shoe last with the sweeping knife. Two, the external support platform will automatically stop when touching the shoe last, and the external support platform should be slower than the inner support platform. The pressure of the external support platform should not be too big, so as not to hold the two support. Three, the starting height of the inner supporting platform rises and adjusted after the upper support table is lower, easy to put the last but easy to break the vamp. Four, when the cutter is near (about 3mm), it should start lowering the external support platform, too early to fall down and affect the stability of the bond, so that it can sweep the middle bottom easily. The internal support table will drop too early, which will cause too much friction between the sweep and vamp, causing the shoe to pull into too many complex or broken. Five, the angle between the inner supporting platform and the cutting tool is parallel, and the height of the 2mm is higher than that of the high cutting tool (that is, vamp and middle bottom).

The tightener adjustment (tightener pressure, speed, tightener position and height): first, the beam polymer in the shoe last at the same time the shoe last, the shoe upper is fixed to the shoe last, the beam thicker over the general assembly causes the shoe to sprain, the bottom of the outsole; two, the beam distance scavenging force is usually around l0mm, both sides should be consistent, so as to avoid eccentricity to remove the last.

Finally, the front press head adjustment (pressure head, secondary pressure, pressure head position): first, the pressure head is located above the shoe last foot, and the forward movement can increase the effect of the shoe tip; two, the pressure head should increase pressure and pressure when the shoe upper material is hard and not easy to form. When the pressure is higher, the thickness of the upper shoe is easier to knot. Three, the pressure sub pressure is usually 0 to 2.5KG, that is, no pressure or just the pressure head action can be done. Over the conference, the sweeping knife will drag the upper part to sweep the middle sole. Four, the pressure two times pressure is usually 20-30KG pressure, the effect is good, but the thin shoe upper is easy to sweep to the bottom.

Heel adjustment (height, angle, position, speed of advancement): first, the speed of the heel is not easy to go too fast, the pressure is too high, the impact on the last head is caused by the pressure, and the front end moves forward; two, the heel height should be matched with the center of the shoe last, and the angle matches the curve of the shoe last heel.

Large seat, knife holder and sweeping knife adjustment (location, angle, speed, lower location of cutter seat, speed of cutting knife, lower limit action time): first, the knife seat should be leveled or slightly 3-5mm up with the middle claw in the lower limit position. For sharp nose, the lower limit of the big seat should be raised, the cutting stroke should be raised, and the sweep toe should be avoided. Two, the big seat, the sweeping knife, the middle jaw, the supporting platform, and the heel in a straight line; three, the sweeping knife can move behind the knife seat in the rear, and the sweeping knife should change with the shape of the toe cap, and the effect of the binding will be good.