CN105133178A - Rail for knitting machine spindle for strip-shaped two-dimensional fabrics - Google Patents

Abstract

A track for the spindle of a ribbon-shaped two-dimensional fabric braiding machine, comprising two semicircular arc-shaped tracks I with a radius of R and at least one X-shaped track, the X-shaped track is arranged between two symmetrically arranged tracks I, and the track The two ends of I are respectively connected tangentially to the corresponding ends on the X-shaped track. The X-shaped track includes a pair of compound arc tracks arranged crosswise. The compound arc track includes a 1/4 arc-shaped track with a radius of R1 The track II and the 1/4 arc-shaped track III whose radius is R2 are connected tangentially at one end of the track II and the track III. The present invention cancels the transition of the straight line section of the track panel of the traditional weaving machine, and optimizes the form of the spindle movement track curve as a tangent arc compared with the traditional inner common tangent form, with faster speed, less wear and lower noise.

Description

A track for the spindle of the braiding machine of a strip-shaped two-dimensional fabric

technical field

The invention relates to a track device of a weaving machine, in particular to a track used for a belt-shaped two-dimensional fabric weaving machine spindle.

Background technique

Braided hemp rope, electrical shrinkage tape, twill, etc. are usually woven on a weaving machine with polyester yarn and cotton thread. The running track of the spindle of the traditional belt-shaped two-dimensional braiding machine consists of multiple equal circles arranged at equal intervals along a straight line, and the adjacent circles are connected by common tangent lines. The spindle moves in a circular motion at a uniform speed driven by a single dial, and when it is passed to the next dial, it needs to move in a straight line. The invention refers to the research method of the movement law of the follower of the cam mechanism, and regards the movement of the spindle as the movement of the follower of the cam mechanism along the cam profile. It is found that the quasi-velocity, quasi-acceleration and quasi-jump of the spindle have changed greatly when the spindle rotates at high speed. The wear between the track and the guide block is intensified, and metal impact noise is also generated. In view of this, if the transition of the straight line section can be canceled, the stability of the spindle motion will be greatly improved.

In view of the above analysis, the present invention designs a more reasonable scheme after the kinematics and dynamics analysis of the spindle system.

Contents of the invention

The object of the present invention is to provide a track for the spindle of the braiding machine of a strip-shaped two-dimensional fabric to solve the problem that the track of the existing ribbon is easy to rub against the guide block when the braiding machine is working.

The present invention is for solving the deficiencies of the above-mentioned technical problems, and the technical scheme adopted is:

A track for the spindle of a ribbon-shaped two-dimensional fabric braiding machine, comprising two semicircular arc-shaped tracks I with a radius of R and at least one X-shaped track, the X-shaped track is arranged between two symmetrically arranged tracks I, and the track The two ends of I are respectively connected tangentially to the corresponding ends on the X-shaped track. The X-shaped track includes a pair of compound arc tracks arranged crosswise. The compound arc track includes a 1/4 arc-shaped track with a radius of R1 The track II and the 1/4 arc-shaped track III with a radius of R2, one end of the track II and the track III are connected together tangentially, and the center of the arc where the track II is located and the center of the arc where the track III is located are respectively located at the tangent of the two. On both sides of the point, track II in the compound track in the same X-shaped track intersects together, and the center of track II in one compound track is collinear with the center of track III in the other compound track.

The radius R1 is greater than the radius R2.

The radius R is half of the sum of the radius R1 and the radius R2.

A spindle running track of a braiding machine, the two ends of the track are transitional semicircular arcs connected to each other with 1/4 arcs (radius R1, R2 respectively) and the radius is R (the average value of R1, R2); the middle is composed of The shown semicircle arcs with radii R1 and R2 are alternately connected in turn; the centers of the two arcs with radii R1 and R2 convex in different directions are on the same straight line, and the arcs with the same radius are on the same straight line. Side; the center of the arcs with different radii on both sides of the straight line coincides; the center of the arc with the radius R at both ends is offset by an appropriate distance H from the straight line where the circle point is located to the side of the large-radius arc (half the difference between R1 and R2) ;The connection point of adjacent arcs is the tangent point of two arcs.

The beneficial effects of the present invention are: the present invention cancels the transition of the straight line section of the track panel of the traditional weaving machine, so that the form of the spindle motion track curve is a tangent circular arc, which is optimized compared with the traditional internal common tangent form, and the speed is faster and wear-resistant Smaller and less noisy.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Icon marks: 1, track I; 2, X-shaped track; 201, track II; 202, track III.

Detailed ways

As shown in Figure 1, the specific implementation is as follows:

A belt-shaped two-dimensional fabric weaving machine spindle track, including two semi-arc-shaped track I1 with a radius of R and at least one X-shaped track 2, the X-shaped track 2 is arranged between two symmetrically arranged tracks I1 , the two ends of the track I1 are respectively connected tangentially to the corresponding ends on the X-shaped track. The X-shaped track includes a pair of compound arc tracks arranged crosswise, and the compound arc track includes a 1/4 arc with a radius of R1 The orbit II201 of orbit II201 and the orbit III202 of 1/4 arc shape with a radius of R2, one end of orbit II201 and orbit III202 are connected together tangentially, and the center of the arc where orbit II201 is located and the center of the arc where orbit III202 is located are respectively located at two On both sides of the tangent point, the track II201 in the compound track in the same X-shaped track 2 intersects together, and the center of track II201 in one compound track is collinear with the center of track III202 in the other compound track.

The radius R1 is greater than the radius R2.

The radius R is half of the sum of the radius R1 and the radius R2.

A spindle running track of a braiding machine, the two ends of the track are transitional semicircular arcs connected to each other with 1/4 arcs (radius R1, R2 respectively) and the radius is R (the average value of R1, R2); the middle is composed of The shown semicircle arcs with radii R1 and R2 are alternately connected in sequence; the centers of the two arcs with radii R1 and R2 convex in different directions are on the same straight line, and the arcs with the same radius are on the same straight line. Side; the center of the arcs with different radii on both sides of the straight line coincides; the center of the arc with the radius R at both ends is offset from the straight line where the point is located to the side of the large radius arc by an appropriate distance H (half of the difference between R1 and R2) ;The connecting point of adjacent arcs is the tangent point of two arcs.

The technical solutions and implementation methods listed in the invention are not limiting, and solutions that are equivalent to or have the same effect as the technical solutions and implementation methods listed in the present invention are within the protection scope of the present invention.

Claims (3)

1. the track of the braiding machine spindle of a banded two-dimensional fabric, it is characterized in that: comprise the track I(1 that two radiuses are the semicircle arcuation of R) and at least one X-type track (2), X-type track (2) is arranged on two symmetrically arranged track I(1) between, track I(1) two ends respectively with on X-type track, corresponding end is tangent links together, described X-type track comprises the compound circular arc track that pair of cross is arranged, compound circular arc track comprises the track II(201 that radius is 1/4 arc-shaped of R1) and radius be the track III(202 of 1/4 arc-shaped of R2), track II(201) and track III(202) one end tangently to link together, track II(201) center of circle of place circular arc and track III(202) center of circle of place circular arc lays respectively at the both sides at both point of contacts, track II(201 in composite orbit in same X-type track (2)) intersect together, and the track II(201 of one of them composite orbit) the center of circle and another composite orbit middle orbit III(202) center of circle conllinear.

2. the track of the braiding machine spindle of a kind of banded two-dimensional fabric according to claim 1, is characterized in that: described radius R 1 is greater than radius R 2.

3. the track of the braiding machine spindle of a kind of banded two-dimensional fabric according to claim 1, is characterized in that: described radius R is the half of radius R 1 and radius R 2 summation.