Front zone drafting small-space odd-shaped cross section lower pin for ring spinning frame
A special-shaped cross-section and spinning frame technology, which is applied to spinning machines, drafting equipment, textiles and papermaking, etc., can solve the problems of unreasonable distribution of friction force circles, unfavorable effective control of fibers of different lengths, etc., and achieve the goal of ensuring yarn quality Effect
Inactive Publication Date: 2011-05-25
孟振康 +2
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Problems solved by technology
[0003] The purpose of the present invention is to solve the technical problem of the unreasonable distribution of the friction force circle existing in the existing "T-shaped" lower pin and the unfavorable effective control of fibers of different lengths, and to provide a reasonable distribution of the friction force circle that is beneficial to fibers of different lengths. Efficiently Controlled Drafting in Front Area of Ring Spinning Frame Small Gauge Irregular Cross-section Bottom Pin
Method used
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[0011] Such as figure 1 As shown, the front area of the ring spinning machine in this embodiment drafts the bottom pin with small gauge and special-shaped cross-section, wherein: the cross-sectional shape of the bottom pin is special-shaped, and the outline of the special-shaped cross-section is composed of arcs r1, r2, r3 , r4, r5, r6, r7, R1, R2, oblique line segment b with inclination angle α1, straight line segment a, oblique line segment c with inclination angle α2, oblique line segment d with inclination angle α3, bottom width m, arc r4 and circle The arc r7 height difference H2, the arc r5 and the arc r6 height difference H3 are connected smoothly and seamlessly; the total width of the special-shaped section is B, the total height is H0, and the horizontal center distance between the arc r1 and the arc R1 is L, the height difference between arc r1 and arc R1 is h, and the height of arc r1 from the bottom is H1. The radius of the above-mentioned arcs r1, r2, r4, r5, ...
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The invention relates to a front zone drafting small-space odd-shaped cross section lower pin for a ring spinning frame, which mainly solves the technical problems of the existing T-shaped lower pin of unreasonable friction field distribution and unfavorable effective control on fiber in different lengths. The invention has the technical scheme that the cross section shape of the front zone drafting small-space odd-shaped cross section lower pin for the ring spinning frame is in an odd shape, contour lines of the odd-shaped cross section consist of circular arcs r1, r2, r3, r4, r5, r6, r7, R1 and R2, an inclined line section with an inclined angle being Alpha1, a straight ling section a, an inclined line section c with an inclined angle being Alpha2, an inclined line section d with an inclined angle being Apha3 and line sections with the bottom width being m and the height differences respectively being H2 and H3 through smooth and trace-free connection, the odd-shaped cross section has the total width being B and the total height being H0, the horizontal center distance from the circular arc r1 to the circular arc R1 is L, the height difference between the circular arc r1 and the circular arc R1 is h, and the height from the circular arc r1 to the bottom surface is H1.
Description
technical field [0001] The invention relates to a lower pin with small gauge and special-shaped cross-section drafting in the front area of a ring spinning frame, which belongs to a part used in a ring spinning frame. Background technique [0002] Long and short double apron drafting is the drafting form commonly used in spinning frames at present, and reasonable friction circle design is the main content of the drafting mechanism. The main measures to obtain a reasonable friction boundary are shortening the front middle roller gauge, reducing the length of the floating zone and the distribution of the friction boundary in the middle of the double apron, and stabilizing the gap between the jaws of the apron and the size of the pressure. The function of the lower pin is mainly to support the lower apron and guide the apron to rotate stably. The distribution of the friction circle in the middle of the apron mainly depends on the upper supporting position of the lower pin. ...
Claims
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IPC IPC(8): D01H5/88
Inventor 孟政安孟德波孟德嘉孟丽君孟丽娜
Owner 孟振康