Device and method for adjusting the work gap between the points of flat clothings and the points of the cylinder clothing of a card

Device according to one of the preceding claims, characterized in that a mechanism (163;

• 263;
• 363;
• 463;
• 563;
• 763) is provided in order to shift the parts forming the sliding guides around the axis of rotation of the drum.

Device according to one of the preceding claims, characterized in that for each sliding guide (152;

• 252;
• 352;
• 452;
• 552;
• 752) of three up to twenty, preferably three to six supporting points (157;
• 257;
• 357;
• 457;
• 557;
• 757) are provided.

Device for adjusting the work gap (A) between the points of the flat clothings (44) and the points of the cylinder clothing (68) of a card, whereby the flat bars (40) being furnished with clothings (44) are led over a partial area of the drum circumference on both sides of the card (10) on sliding surfaces which are being provided with respective convex bent sliding guides (152;

• 252, 352;
• 452;
• 552;
• 652;
• 752), whereby the flat bars are being provided with flat heads (46), furnished with sliding surfaces, which slide alongside the sliding guides, the sliding guides each are being formed by a bent part and the radial position of the sliding surfaces of the sliding guides in relation to the axis of rotation of the drum (175;
• 275;
• 375;
• 475;
• 575;
• 675;775) is changeable by changing the local position of the parts characterized in that, each part forming a sliding guide is provided in the form of two sections which follow each other around the axis of rotation of the drum, said sections being swivably linked with one another with their facing ends on a common radially adjustable support and which are supported around their far ends by respective radially adjustable supports.

Device for adjusting the work gap (A) between the points of the flat clothings (44) and the points of the cylinder clothing (68) of a card, whereby the flat bars (40) being furnished with clothings (44) are led over a partial area of the drum circumference on both sides of the card (10) on sliding surfaces which are being provided with respective convex bent sliding guides (152;

• 252, 352;
• 452;
• 552;
• 652;
• 752), whereby the flat bars are being provided with flat heads (46), furnished with sliding surfaces, which slide alongside the sliding guides, the sliding guides each are being formed by a bent part and the radial position of the sliding surfaces of the sliding guides in relation to the axis of rotation of the drum (175;
• 275;
• 375;
• 475;
• 575;
• 675;775) is changeable by changing the local position of the parts characterized in that the oblong bent parts forming the sliding guides (952) are provided each with a heating mechanism (999) which is able to warm-up the parts over their entire length, that each oblong part is fixedly connected on its two ends (953,955) and that it bends through the length variation caused by the thermal expansion and thus the radial position of the sliding surface of the respective sliding guides is alterable.

Method to adjusting the work gap (A) between the points of the flat clothings (44) and the points of the cylinder clothing (68) of a card, whereby the flat bars (40) being furnished with clothings (44) are led over a partial area of the drum circumference on both sides of the card (10) on sliding surfaces which are being provided with respective convex bent sliding guides (152;

• 252, 352;
• 452;
• 552;
• 652;
• 752), whereby the flat bars are being provided with flat heads (46), furnished with sliding surfaces, which slide alongside the sliding guides, the sliding guides each are being formed by a bent part and the radial position of the sliding surfaces of the sliding guides in relation to the axis of rotation of the drum (175;
• 275;
• 375;
• 475;
• 575;
• 675;775) is changeable by changing the local position of the parts, characterized in that the parts forming the sliding guides (152;
• 252, 352;
• 452;
• 552;
• 652;
• 752) are each supported on several discrete supporting points (157;
• 257;
• 357;
• 457;
• 557;
• 757) and are being shifted around the axis of rotation of the drum (175;
• 275;
• 375;
• 475;
• 575;
• 675;
• 775) in relation to said supporting points, in order to move the sliding surfaces of the sliding guides in radial direction for adjusting the work gap.