CN204780135U - Spindle and track panel components that braider was used - Google Patents

Abstract

A spindle and track panel assembly for a braiding machine, comprising a disc-shaped track panel and a spindle, the spindle being installed on the track panel, and two tracks are provided on the track panel, and the two tracks are respectively track 1 and track II, the spindle includes a spindle body, a spindle base and a guide block, the spindle base is fixed on the bottom of the spindle body, the guide block is installed on the spindle base, and the guide block is set away from the center of the spindle base, and the spindle body is locked by the guide block in orbit. The utility model cancels the straight line section conversion block of the track panel of the traditional weaving machine, and simplifies the structure. The spindle motion trajectory curve is in the form of circular tangency, which is optimized compared with the traditional internal tangent form, with faster speed, less wear and lower noise.

Description

Spindle and track panel assembly for a braiding machine

technical field

The utility model relates to a device for a braiding machine, in particular to a spindle and track panel assembly for a braiding machine.

Background technique

Cables, high-pressure gas pipelines, oil pipelines, and water pipelines usually have a layer of sheath tube braided with metal wire or polyester wire, cotton thread, etc. This kind of sleeve braiding machine has a complex structure and high precision requirements. There are multiple spindles on the panel. run in S-shaped grooves. Each spindle carries a bobbin on which the yarn is wound. Divide these spindles equally into two groups, all the yarns in one group move forward or reverse in the same direction, and the yarns in the other group move reverse or forward in the opposite direction to the yarns in the previous group. To ensure that the two sets of yarns interweave, some of the yarns move towards the center of the tube. The rest of the yarn runs towards the outer edge of the tube. At the same time, the yarn not only moves inward and outward along the radial direction of the circular tube, but also moves along the circumferential direction of the circular tube. Multiple spindles move in the track for a long time, resulting in increased wear of the guide block and the track, affecting the stability of the spindle operation, resulting in the inability to continue weaving. Therefore, frequent maintenance is required.

In summary, the traditional weaving machine track panel still needs to be improved. The track of the traditional braiding machine is formed by a plurality of equal circles evenly distributed, 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 utility model 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, and the spindle only performs a uniform circular motion before being passed to the next dial, the stability of the spindle movement will be greatly improved.

In view of the above analysis, the utility model has designed a more reasonable scheme after the kinematics and dynamics analysis of the spindle system.

Utility model content

The purpose of the utility model is to provide a spindle and track panel assembly for a knitting machine to solve problems such as unstable running of the spindle, severe collision with the track, and high noise caused by the unreasonable structure of the track disc.

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

A spindle and track panel assembly for a braiding machine, comprising a disc-shaped track panel and a spindle, the spindle being installed on the track panel, and two tracks are provided on the track panel, and the two tracks are respectively track 1 and track II, the track I and the track II are composed of a plurality of S-shaped arcs connected end to end, and the S-shaped arcs include a large-radius arc segment and a small-radius arc segment, and the large-radius arc segment It is tangentially connected with the small radius arc segment, the centers of the large radius arc segment and the small radius arc segment are respectively located on both sides of the common tangent line of the large radius arc segment and the small radius arc segment, and the large radius arc segment The convex direction of the small-radius arc segment is opposite, and the center of the large-radius arc segment of track I coincides with the center of the small-radius arc segment of track II, and the center of the small-radius arc segment of track I coincides with the large radius of track II The centers of the arc segments coincide, the spindle includes a spindle body, a spindle seat and a guide block, the spindle seat is fixed on the bottom of the spindle body, the guide block is installed on the spindle seat, and the guide block is set away from the center of the spindle seat, the spindle body It is fixed in the track through the guide block.

There are at least two spindles, namely a clockwise spindle and a counterclockwise spindle.

The distance between the guide block and the center of the spindle seat is half of the radius difference between the large radius arc segment and the small radius arc segment.

The large-radius arc segments in the track I and track II protrude toward the edge of the track panel, and the small-radius arc segments protrude toward the center of the track panel.

The small-radius arc segments in the track I and track II protrude toward the edge of the track panel, and the large-radius arc segments protrude toward the center of the track panel.

The line connecting the centers of the two arc segments whose centers coincide in the track I and track II passes through the center of the track panel.

The line connecting the centers of the two arc segments whose centers coincide in the track I and track II passes through the centers of the two arc segments.

The beneficial effect of the utility model is: the utility model cancels the straight line section conversion block of the track panel of the traditional weaving machine, and simplifies the structure. The spindle motion trajectory curve is in the form of circular tangency, which is optimized compared with the traditional internal tangent form, with faster speed, less wear and lower noise. 1. The spindle seat still runs along the track of equal circle and tangent, and the running speed is faster; 2. The intersection point of the track is far away from the position transmitted by the adjacent dial, that is, the inertia force reversal of the spindle when running to the track intersection point is avoided; 3. When the spindle passes the position of the track intersection, it rotates with the dial at a constant angular velocity, the inertial force remains unchanged, and the direction does not change suddenly; Larger and larger, the larger the included angle, the less likely the track will be damaged, which improves the wear resistance and impact resistance of the track disc; 5 improves the service life of the track disc, and reduces the cost caused by maintenance and replacement of the track disc.

Description of drawings

Fig. 1 is a schematic diagram of the track panel structure in the utility model.

Fig. 2 is a schematic diagram of the running track of the spindle in the utility model.

Fig. 3 is a schematic diagram of the running track of the guide block of the spindle seat in the utility model.

Fig. 4 is a schematic diagram of the design principle of the track disk panel in the utility model.

Figure 5 is the bottom view of the assembly of the spindle seat in the utility model.

Figure 6 is a three-dimensional view of the assembly of the spindle seat and the guide block in the utility model.

Fig. 7 is an assembly perspective view of the spindle seat with the guide block and the track panel in the utility model.

Fig. 8 is a schematic diagram of track design in the utility model.

Fig. 9 is a functional relationship diagram between the sharp angle included angle and the offset amount in the present invention.

Icon marks: 1. Orbit I, 2, Orbit II, 3, Orbit panel; 4, Arc inwardly offset by H, 5, Clockwise spindle, 6, Counterclockwise spindle, 7 Outwardly offset by H 8, the spindle trajectory tangential to the circle, 9, the clockwise rotation of the spindle seat guide block, 10, the clockwise rotation of the spindle seat guide block, 11, the spindle seat, 12, the guide block.

Detailed ways

Shown in Fig. 1-Fig. 7, the specific implementation method is as follows:

A spindle and track panel assembly for a braiding machine, including a disc-shaped track panel 3 and a spindle, the spindle is installed on the track panel 3, and two tracks are opened on the track panel 3, and the two tracks are respectively track I1 and track II2, the track I1 and the track II2 are composed of a plurality of S-shaped arcs connected end to end, the S-shaped arcs include a large radius arc segment and a small radius arc segment, the large radius The circular arc segment and the small radius circular arc segment are connected together tangentially, the centers of the large radius circular arc segment and the small radius circular arc segment are respectively located on both sides of the common tangent line of the large radius circular arc segment and the small radius circular arc segment, and the large radius The arc segment and the small radius arc segment are convex in opposite directions, and the center of the large radius arc segment of track I1 coincides with the center of the small radius arc segment of track II2, and the center of the small radius arc segment of track I1 coincides with that of track II2 The center of circle of the large-radius arc section coincides, and the described spindle includes a spindle body, a spindle seat 11 and a guide block 12, the spindle seat 11 is fixed on the bottom of the spindle body, the guide block 12 is installed on the spindle seat 11, and the guide block 12 Deviated from the center of the spindle seat 11, the spindle body is locked in the track through the guide block 12.

There are at least two spindles, which are clockwise spindle 5 and counterclockwise spindle 6 respectively.

The distance between the guide block 12 and the center of the spindle seat 11 is half of the radius difference between the large radius arc segment and the small radius arc segment.

The large-radius arc segments in the track I1 and track II2 protrude toward the edge of the track panel 3 , and the small-radius arc segments protrude toward the center of the track panel 3 .

The small-radius arc segments in the track I1 and track II2 protrude toward the edge of the track panel 3 , and the large-radius arc segments protrude toward the center of the track panel 3 .

The line connecting the centers of the two arc segments whose centers coincide in the track I1 and the track II2 passes through the center of the track panel 3 .

The line connecting the centers of the two arc segments whose centers coincide in the track I1 and track II2 passes through the centers of the two arc segments.

The structure of a track panel of a weaving machine is shown in Fig. 1, 12 large-radius arc tracks and 12 small-radius arc tracks interconnected in a circular array on the panel. Adjacent large-radius arc tracks and small-radius arc tracks form an approximate S shape, and in this embodiment, there are 6 S-shaped cycles and 6 reverse S-shaped cycles intersecting each other.

All the S-shaped tracks are connected to each other, and all the anti-S-shaped tracks are connected to each other. The guide blocks on the base of the 12 clockwise rotating spindles can advance along the S-shaped track in a serpentine shape, and the guide blocks on the base of the 12 counterclockwise spindles It can advance serpentine along the reverse S-shaped track.

An S-shaped track entrance communicated with the S-shaped track is also arranged on the panel, and an anti-S-shaped track entrance communicated with the reverse S-shaped track is provided. It facilitates the entry and exit of the guide block when installing the spindle.

The assembly of the guide block and the spindle base is shown in Figure 6, and the assembly of the two and the track is shown in Figure 7.

Since the orbits are made up of circular arcs of different radii, their intersections move up. That is to say, the position of the spindle is not at the intersection of the tracks at the moment when the two dials transfer the spindle, which effectively avoids the problem of the spindle going off the track. When the spindle passes the intersection, the spindle is controlled by a dial, that is, the centrifugal force on the spindle at the intersection of the tracks does not change, and the operation is stable.

The utility model uses circular arc intersecting rails with different curvature radii and a spindle base structure with the offset installation position of the spindle guide block, which solves the problem of the spindle diverging during the transfer process, and greatly reduces the centrifugal acceleration of the spindle when it is reversed. Impact damage to the track.

The track design principle is shown in Figure 8:

Set radial displacement Rotation angle with spindle The functional relationship is:

then the additional load

From this, the radial displacement can be obtained with rotation angle The change of determines the additional load the size of. If the radial displacement with angle The amount of change is zero, that is, its radial displacement do not follow change, which is always , then the spindle always moves in a circular motion with constant angular velocity with the guide disc, without additional load generation. Therefore, it can be obtained that the trajectory curve of the circle and the circle tangent runs most stably.

The spindle is subjected to a constant centrifugal force :

In the formula is the angular velocity of the spindle rotating with the dial, The radius of curvature is the distance from the center of mass of the spindle to the center of rotation.

See attached picture 9 for sharp corner angle with offset The functional relationship of:

Visible corners With offset increases with the increase. Angle The thicker the track entity at the larger sharp corner, the stronger the wear resistance and impact ability.

The technical solutions and implementations listed in the utility model are not limiting, and the solutions that are equivalent to or have the same effect as the technical solutions and implementations listed in the utility model are all within the protection scope of the utility model.

Claims (7)

1. A spindle and track panel assembly for a braiding machine, comprising a disc-shaped track panel (3) and a spindle, the spindle is installed on the track panel (3), characterized in that: the track panel (3) There are two tracks, the two tracks are track I (1) and track II (2), and the track I (1) and track II (2) are composed of a plurality of S-shaped arcs connected end to end. The S-shaped arc includes a large-radius arc segment and a small-radius arc segment, the large-radius arc segment and the small-radius arc segment are connected together tangentially, and the large-radius arc segment and the small-radius arc segment The center of the circle is located on both sides of the common tangent of the large-radius arc segment and the small-radius arc segment, and the convex direction of the large-radius arc segment and the small-radius arc segment are opposite, and the large-radius arc segment of orbit I(1) The center of the circle coincides with the center of the small-radius arc section of track II (2) and the center of the small-radius arc section of track I (1) coincides with the center of the large-radius arc section of track II (2), the spindle Including the spindle body, spindle base (11) and guide block (12), the spindle base (11) is fixed on the bottom of the spindle body, the guide block (12) is installed on the spindle base (11), and the guide block (12) deviates from the spindle The center of circle of the seat (11) is set, and the spindle body is clamped in the track by the guide block (12). 2. A spindle and track panel assembly for a braiding machine according to claim 1, characterized in that: there are at least two spindles, clockwise spindles (5) and counterclockwise spindles (6) . 3. A spindle and track panel assembly for a braiding machine according to claim 1, characterized in that: the distance between the guide block (12) and the center of the spindle seat (11) is a large radius arc segment and a small radius Radius Half of the radius difference of the arc segment. 4. A spindle and track panel assembly for a braiding machine according to claim 1, characterized in that: the large-radius arc segments in the track I (1) and track II (2) protrude toward the track panel The edge of (3), the small-radius arc segment protrudes to the center of the track panel (3). 5. A spindle and track panel assembly for a braiding machine according to claim 1, characterized in that: the small-radius arc segments in the track I (1) and track II (2) protrude toward the track panel The edge of (3), the large-radius arc segment protrudes to the center of the track panel (3). 6. A spindle and track panel assembly for a braiding machine according to claim 1, characterized in that: the center of the two arc segments whose centers coincide in the track I (1) and track II (2) Wire through the center of the track panel (3). 7. A spindle and track panel assembly for a braiding machine according to claim 1, characterized in that: the center of the two arc segments whose centers coincide in the track I (1) and track II (2) The connecting line passes through the centers of the two arc segments.