JPH07268750A - Braider - Google Patents

Abstract

PURPOSE:To avoid the rubbing of yarns in crossing, prevent the damages such as fluffing and breakage and improve the quality of braided product by applying a difference of level between yarns drawn from a bobbin carrier and transported to a mandrel. CONSTITUTION:This braider is provided with a wavy cam (k) having repeated valley part (k1') and a hill part (k1'') corresponding to a slit-crossing part (b1') and the outermost circumferential part (b1'') along the outer contour of a plain orbit (k1') of a continuous 8 figure-formed slit for guiding a bobbin carrier C. When the running bobbin carrier C is directed from the slit-crossing part (b1') outward, it is guided from the valley part (k1') to the hill part (k1'') of the wavy cam (k) to lift the post Cjj of the bobbin carrier C. Accordingly, the drawn yarn (y) is positioned above a yarn (y') drawn from a bobbin carrier C running on the inside plain orbit (b1) to avoid the rubbing of both yarns (y) and (y') moving toward the mandrel at the crossing point. The level difference may be applied between the inner and outer upper plates placed along the plain orbit (b1) in place of the wavy cam (k).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a plurality of yarns or fiber bundles (hereinafter, simply referred to as "yarns") interlaced,
The present invention relates to a braider that forms a composition around a mandrel.

[0002]

2. Description of the Related Art Conventionally, for example, two groups of bobbin carriers are made to run in opposite directions along a plane trajectory in which eight-shaped slits are continuous, and the position and attitude of a mandrel are appropriately controlled. There is known a braider that forms a composition by interlacing threads around a mandrel.

[0003]

In the above-mentioned conventional braider, the yarn drawn from the bobbin mounted on the bobbin carrier that runs in opposite directions along the plane track is fed to the mandrel. To cross each other while rubbing against each other,
There are problems that the yarns are fluffed, the fibers forming the yarns are broken, and the yarns are damaged such as cut.

An object of the present invention is to solve the above-mentioned problems of the conventional braider and to provide a braider having improved productivity capable of forming a composition having improved quality.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention is first of all drawn from a bobbin carrier which runs along a planar track and is located outside the mandrel. The yarn is located above the yarn drawn from the bobbin carrier located inside the mandrel, and secondly, for the mandrel traveling along the plane trajectory. By lifting the bobbin carrier located on the outside by the cam arranged along the outer contour of the plane track,
The yarn drawn from the bobbin carrier is located above the yarn drawn from the bobbin carrier located inside the mandrel. Thirdly, the yarn is drawn from the mandrel. The upper plate along the planar track located on the outer side of the mandrel is made higher than the upper plate along the planar track located on the inner side of the mandrel so that the upper plate is pulled out from the bobbin carrier located on the outer side of the mandrel. The yarn is located above the yarn drawn from the bobbin carrier located inside the mandrel.

[0006]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

FIG. 1 is a schematic perspective view of a braider B as an example of the present invention, where b1 is a plane orbit having a shape such as a series of eights arranged on an upper plate b3 of a machine stand b2. Yes, C is a bobbin carrier on which a bobbin around which a yarn Y running along a plane track b1 is placed.
m is a mandrel around which the composition W is formed, and the mandrel m is a mandrel support arm b5 of a mandrel controller b4 that controls the position and posture of the mandrel m.
It is held by a mandrel support member b6 arranged at the tip of the. Although only two bobbin carriers C are illustrated in FIG. 1 by way of example, a large number of bobbin carriers C are arranged so as to travel along a plane trajectory b1.
Half of the bobbin carriers C are configured to run in the clockwise direction, and the remaining half of the bobbin carriers C are configured to run in the counterclockwise direction. A large number of bobbin carriers C are made to travel along the plane trajectory b1 to intersect the yarns Y to form the composition W around the mandrel m.

2, which is a perspective view of the bobbin carrier C and the like traveling along the plane trajectory b1, and a front view including a partial cross section of FIG. 2, and along line I--I in FIG. An embodiment of the present invention will be described with reference to FIG. 4, which is a sectional view.

In FIG. 4, b7 is a gear forming a gear train in which adjacent gears driven by a driving device such as a motor (not shown) are screwed together, and a shaft b8 of the gear b7. Has an appropriate number of recesses b on the outer circumference.
An impeller b9 having holes 9'and b9 "is attached so as to be located above the gear b7.

C1 is an engaging shaft of the bobbin carrier C that engages with the recess b9 'of the impeller b9, and c2 and c3 are
A guide shaft c guided on a plane track b1 coaxial with the engagement shaft c1.
4 are upper and lower flanges, which are substantially disc-shaped and are arranged vertically so as to sandwich the upper plate b3. c
Reference numeral 5 denotes a support shaft that is erected substantially vertically on the upper flange c2, and the support shaft c5 is inserted into a vertical hole c7 'formed in a spindle c7 into which the bobbin c6 is inserted. c8
And c9 have a predetermined clearance c1 at the lower end of the spindle c7.
Disk-shaped upper guide plate and lower guide plate which are arranged at 0, and a gap c1 between the upper guide plate c8 and the lower guide plate c9.
0 is configured so that a cam surface k1 of a substantially donut-shaped wavy cam K arranged along an outer contour of a plane trajectory b1 described later is inserted.

Numeral c11 is a column vertically installed on a horizontal plate c12 attached on the upper guide plate c8. The column c11 has a yarn which is laterally drawn out from the bobbin c6, that is, a laterally taken line. A vertical hole c14 is formed to vertically guide a weight member c13 provided with a guide roller c13 'for guiding Y in a substantially vertical direction. Also, the column c11
A yarn guide hole c15 is bored at the upper end of the. The yarn Y is taken over from the bobbin c6 placed on the bobbin carrier C, and then the guide roller c of the weight member c13.
13 'is guided substantially vertically upwards, and then through a yarn guide hole c15 bored at the upper end of the column c11,
As shown in FIG. 4, the mandrel m is pulled out in a substantially horizontal direction. The pull-out tension of the yarn Y is controlled by vertically moving the weight member c13 along the vertical hole c14 formed in the support column c11.

By rotating a gear b7 that constitutes a gear train by a drive device (not shown), an impeller b9 attached to a shaft b8 of the gear b7 is rotated to rotate the impeller b7.
The engaging shaft c1 of the bobbin carrier C engaged with the recess b9 ′ of the bobbin 9 is moved to move the bobbin carrier C into the plane trajectory b.
1 is configured so that the vehicle can be driven. On the other hand, the engagement shaft c1 ′ of the bobbin carrier C ′ located on the right side in FIG. 4 is engaged with the recess b9 ″ located on the opposite side of the recess b9 ′ of the impeller b9, and thus the impeller b9 has Due to the rotation, the bobbin carrier C located on the left side and the bobbin carrier C ′ located on the right side in FIG.
Are configured to travel in the opposite direction on the plane trajectory b1.

Next, mainly using FIGS. 2 and 3,
The substantially donut-shaped wavy cam K arranged along the outer contour of the plane trajectory b1 will be described. The wavy cam K is attached to a suitable support frame k2 that is erected on the upper plate b3, and has an inner contour k3 similar to the outer contour of the plane track b1 formed by a series of eight-shaped slits. have.
Further, the cam surface k1 of the wavy cam K is provided at the intersection b1 ′ of the slits of the figure 8 forming the plane trajectory b1 with the tip having substantially the same plane as the plane trajectory b1 protruding toward the intersection b1 ′. The outermost peripheral portion b1 ″ (located between the intersecting portions b1 ′ and the outermost portion with respect to the mandrel m) located in the center between the intersecting valley portion k1 ′ and the intersecting portion b1 ′ of the 8-shaped slit. In the outer contour of the plane trajectory b1), the peak portion k1 ″ is located at the highest position. Therefore, in the wavy cam K, the valley portion k1 ′ and the peak portion k1 ″ respectively form the plane trajectory b1. Crossing part b1 ′ of the figure 8 shaped slit
And a donut-shaped wavy cam that is repeated corresponding to the outermost peripheral portion b1 ″.

As described above, the cam surface k1 of the wavy cam K is inserted into the gap c10 between the upper guide plate c8 and the lower guide plate c9 of the bobbin carrier C traveling along the outer planar track b1. Therefore, the upper guide plate c of the bobbin carrier C on which the bobbin c6 and the support column c11 are placed.
Reference numeral 8 denotes a valley portion k1 ′ and a mountain portion k of the cam surface k1 of the wavy cam K.
According to the ups and downs of 1 ″, it moves up and down in a wave shape along the support shaft c5 which is erected substantially vertically on the upper flange c2.

That is, the bobbin carrier C has a plane trajectory b.
From the crossing portion b1 ′ of the 8-shaped slit that constitutes 1
At the time of transition to the flat track b1 located on the outer side, the valley portion k1 ′ of the cam surface k1 of the wavy cam K is inserted into the gap c10 between the upper guide plate c8 and the lower guide plate c9 of the bobbin carrier C, By being guided from the portion k1 ′ to the mountain portion k1 ″, the bobbin c6 and the support column c11 of the bobbin carrier C placed on the upper guide plate c8 are lifted upward along the support shaft c5, and The yarn Y drawn out from the bobbin c6 placed on the bobbin carrier C traveling along the plane trajectory b1 located on the outer side is formed in the gap c10 'between the upper guide plate c8' and the lower guide plate c9 '. Located above the yarn Y'pulled out from the bobbin c6 'placed on the bobbin carrier C'running along the plane trajectory b1 located on the inner side where the cam surface k1 of the wavy cam K is not inserted. Do Therefore, the yarn Y drawn from the bobbin c6 mounted on the bobbin carrier C traveling along the outer plane trajectory b1 toward the mandrel m and the inner plane trajectory b1 The yarn Y ′ drawn from the bobbin c6 ′ placed on the traveling bobbin carrier C ′ and heading toward the mandrel m does not rub against each other when crossing.

Next, instead of the embodiment in which the above-mentioned wavy cam K is arranged, the upper plate b3 along the outer contour of the plane track b1.
FIG. 6 is a front view of FIGS. 5 and 5, which is a perspective view of the bobbin carrier C and the like traveling along the plane trajectory b1 in an embodiment in which the portion b10 on the plane trajectory b1 side of FIG. This will be described with reference to FIG. 7, which is a cross-sectional view taken along line I-I in FIGS. 6 and 5.

In this embodiment, as shown in FIG. 7, the upper guide plate c8 and the lower guide plate c9 of the above-mentioned embodiment are omitted, and the guide shaft c4 guided on the plane track b1 is omitted. The upper and lower flanges c2 and c, which are substantially disc-shaped and are arranged vertically so as to sandwich the upper plate b3 therebetween.
Similar to the above-mentioned wavy cam K, the upper plate b along the outer contour of the wavy flat track b1 is provided in the gap c16 between the three.
The flat track b1 side part b10 of 3 is inserted. The engagement shaft c1 of the bobbin carrier C that engages with the recess b9 ′ of the impeller b9 extends through the lower flange c3 to the guide shaft c4, and is a vertical hole c7 formed in the spindle c7 described above. It is inserted vertically into a vertical hole c4 'similar to that of'.

Therefore, a portion b10 on the plane trajectory b1 side of the upper plate b3 along the outer contour of the wavy plane trajectory b1.
, The upper flange c2 and the lower flange c3 of the bobbin carrier C traveling along the plane track b1 located outside.
The bobbin c6 mounted on the bobbin carrier C traveling along the plane trajectory b1 located outside by being inserted into the gap c16 between the troughs provided on the plane b1 side portion b10 of the upper plate b3. The bobbin c mounted on the bobbin carrier C which is moved upward by the b10 ′ and the mountain portion b10 ″ and travels along the plane trajectory b1 located outside.
The yarn Y drawn out from No. 6 is arranged above the yarn Y 'drawn out from the bobbin c6' placed on the bobbin carrier C'running along the inner plane trajectory b1. Has been done. The configurations other than those described above, for example, the gear b7, the impeller b9, the column c11, the weight member c13, and the like are the same, and thus the description thereof will be omitted.

In the above-described embodiment, the present invention has been described by using the braider B which uses the so-called horizontal take-up type bobbin carrier C in which the yarn Y is drawn out from the bobbin c6 in the lateral direction. Is bobbin c
Needless to say, the present invention can also be applied to a braider B that uses a so-called vertical take-up type bobbin carrier C in which the yarn Y is pulled out from the upper part.

[0020]

Since the present invention is configured as described above, it has the following effects.

Since the yarns drawn from the bobbins mounted on the bobbin carriers traveling in opposite directions along the plane trajectory do not rub each other when the yarns cross each other on the way to the mandrel. It is possible to prevent fluffing of the yarn, breakage of fibers constituting the yarn, or damage such as cutting of the yarn caused by rubbing of the yarn.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a braider as an example of the present invention.

FIG. 2 is a perspective view of a bobbin carrier or the like traveling along a plane track.

FIG. 3 is a front view including a partial cross section of a bobbin carrier and the like traveling along the plane track shown in FIG.

4 is a cross-sectional view taken along the line I-I in FIG.

FIG. 5 is a perspective view of a bobbin carrier or the like that travels along a plane trajectory similar to FIG.

6 is a front view of a bobbin carrier or the like traveling along the plane track shown in FIG.

7 is a cross-sectional view taken along the line I-I in FIG.

[Explanation of symbols]

 B: Braider C: Bobbin carrier K: Wavy cam W: Composition Body b1 ・ ・ ・ ・ ・ ・ Flat orbit b3 ・ ・ ・ ・ ・ ・ ・ ・ Upper plate b9 ・ ・ ・ ・ ・ ・ ・ Imperial c1 ・ ・ ・ ・ ・ ・ ・ ・ Engagement shaft c5 ・ ・ ・ ・ ・ ・ Support shaft c6 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Bobbin m ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Mandrel

Claims (3)

[Claims] 1. A yarn, which runs along a plane track and is drawn from a bobbin carrier located outside the mandrel, from a yarn drawn from a bobbin carrier located inside the mandrel. , A braider characterized by being positioned above. 2. A bobbin carrier, which runs along a plane track and is located outside the mandrel, is pulled out of the bobbin carrier by lifting it by means of a cam arranged along the outer contour of the plane track. A braider characterized in that the existing thread is located above the thread drawn from a bobbin carrier located inside the mandrel. 3. The outer plate with respect to the mandrel is made higher by making the upper plate along the plane track located outside the mandrel higher than the upper plate along the plane track located inside the mandrel. A braider characterized in that the yarn drawn from the bobbin carrier is located above the yarn drawn from the bobbin carrier located inside the mandrel.