JP3316976B2 - Spin plate ring plate support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ring plate supporting structure for a spinning machine such as a ring spinning machine and a ring twisting machine.

[0002]

2. Description of the Related Art In a spinning machine of this kind, a large number of spinning spindles are provided at predetermined intervals over the entire length of the machine base. On the other hand, what is called a long machine base has 400 weights or about 500 weights on one side, which is a very long machine base. For this purpose, a number of intermediate frames called spring pieces are provided between the gear end and the out end, and are connected by a plurality of spindle rails and roller beams to form a machine frame.

[0003] The ring plate is supported by pillars and moves up and down during operation of the spinning machine stand, so that it is supported at at least two places. In that case, if two pillars are provided for each ring plate, the number of pillars increases. The number of parts associated therewith also increases. Therefore, as shown in FIG. 4, a method is adopted in which both ends of an adjacent ring plate 31 are supported by one pillar 33 via one support member 32, respectively. As shown in FIG. 5, the support member 32 is formed symmetrically in the plane and has a pillar insertion hole 34 at its base end.
Are formed. A pair of bolt insertion holes 35 and 36 are formed in the support member 32 at positions corresponding to both sides of the ring plate 31 in the width direction, respectively.
An arc-shaped concave portion 3 corresponding to the ring insertion hole of the ring plate 31 is provided on both left and right sides of the intermediate portion sandwiched between the formation positions of the circular plate 36.
2a is formed.

[0004]

In order for spinning of each weight to be performed under the same stable conditions, it is necessary that the maximum amount of deflection of the ring plate 31 be within a predetermined range. In the configuration in which the ring plate 31 is supported only at both ends, the distance between the support portions is long, and the ring plate 31 is easily bent. Therefore, in order to suppress the bending of the ring plate 31, the cross-sectional shape of the ring plate 31 is changed to a special shape having a large second moment of area, or the thickness of the ring plate 31 is increased. However, in this case, the weight of the ring plate 31 increases, and the weight of the support member 32 increases in order to increase the strength of the support member 32 that supports it. As a result, there is a problem that power consumption for raising and lowering the ring plate increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to reduce the weight of a ring plate when the adjacent ring plate is supported by a single pillar at a connecting portion of a spinning machine stand. Another object of the present invention is to provide a ring plate support structure of a spinning machine that can reduce a load applied to a support portion and a power consumption for driving the ring plate up and down.

[0006]

In order to achieve the above object, according to the present invention, a mounting portion for a pillar is provided at a distance of two pitches of a ring mounting hole of a ring plate from a support portion formed substantially at the center. Two adjacent ring plates are supported by a supporting member provided with a pair of extending supporting arms.

[0007]

In the present invention, the ring plate is supported via a support member fixed to a pillar disposed at a position corresponding to a boundary between adjacent ring plates. A pair of support arms of the support member support each ring plate one pitch inward of the spindle from its end. Then, the distance between the support points of one ring plate is smaller than when the ring plate is supported at its end, and if the ring plate has the same second moment of area, the amount of deflection is smaller. Therefore, if the same amount of deflection is allowed, the second moment of area of the ring plate can be reduced, that is, the weight of the ring plate can be reduced. The load applied to each support arm is a value corresponding to half of the ring plate.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG.
Are formed substantially symmetrically in a plane. The support member 1 includes a support portion 3 extending in the longitudinal direction of the ring plate 2 and a pair of support arms 4 and 5 formed integrally with the support portion 3 and extending from both ends of the support portion 3 in the width direction of the ring plate 2. It is configured. A hole 3a as a mounting portion to the pillar is formed at substantially the center of the base end of the support portion 3. The two support arms 4 and 5 are connected to the two ring mounting holes 6 of the ring plate 2.
They are formed so as to extend substantially parallel to each other at intervals of the pitch. Bolt insertion holes 7 and 8 are formed at the distal end and the proximal end of the support arms 4 and 5, respectively.

As shown in FIG. 2, the support member 1 is tightened and fixed by screws (not shown) with the top of the pillar 9 inserted into the hole 3a. The pillar 9 is provided behind the spindle rail 10 (right side in FIG. 2), and is moved up and down by a not-shown elevating device. The ring plate 2 is placed on the upper surface of the support member 1, is inserted through the bolt insertion holes 7 and 8, and the head of the hexagon socket head cap screw 12 fixed by the nut 11 is positioned by the hole 2 a of the ring plate 2. I have. As shown in FIG. 1, the support member 1 is disposed at a position corresponding to the boundary between the adjacent ring plates 2, and both support arms 4, 5 support the ring plate 2 one pitch inside the spindle 16 from the end thereof. I do.

A ring 13 is inserted into the ring mounting hole 6 and is fixed by a clip 14. The rear side of the ring plate 2 is bent upward at a right angle to form a mounting portion 2b. A balloon control ring 15 is fixed to the mounting portion 2b with a screw 17 corresponding to each spindle 16.

During operation of the spinning machine, the pillar 9 is moved up and down, and the ring plate 2 is moved up and down as a unit.
A yarn (not shown) is wound around the bobbin B via a traveler that moves on the ring 13 with the rotation of the yarn 13 to form a tube yarn. If the deflection of the ring plate 2 is large, the winding of the yarn is hindered.

The deflection of the ring plate 2 can be approximated as the deflection of a beam supported at both ends. As shown in FIG. 3, when an equal load w is applied to a beam whose both ends are supported, the amount of deflection v at the center of the beam is represented by L: distance between support points, E: longitudinal elastic modulus of the beam, I: Is the second moment of area of the beam.

V = (5wL ⁴ ) / (384EI) Therefore, the ring plate 2 having the same material and the same sectional shape
Then, the shorter the distance between the support positions, the smaller the amount of deflection. For example, the distance L ₁ between the support points in the case of a conventional ring plate support structure for supporting the ring plate 1780mm in support 1 of this embodiment, the distance L ₂ between the support points becomes 1670Mm. The conventional bending amount v ₁ and the bending amount v ₂ of this embodiment are represented by the following equations.

[0014] was ^{_{v 1 = (5wL 1 4)}} / (384EI 1) ... v 2 = (5wL 2 4) / (384EI 2) ... a deflection amount v ₂ of this embodiment same as the conventional deflection amount v ₁ In this case, the second moment of area I ₂ is given by I ₂
= (L ₂ / L ₁ ) ⁴ × I ₁ ≒ 0.77 × I ₁ The amount of bending in the equation is a value ignoring the load acting outside the support point, and the amount of bending in consideration of this load is v
Smaller than ₂ . Therefore, in the case of the support structure of this embodiment, the second moment of area of the ring plate 2 can be reduced by 20% or more as compared with the related art, and the weight of the ring plate 2 can be correspondingly reduced. And the support member 1
, And the weight of the support member 1 itself can be reduced. As a result, power consumption required for raising and lowering the ring plate 2 is reduced.

Further, since the supporting member 1 supports half of the weight of both the adjacent ring plates 2 and the parts attached thereto, as a result, the weight of one ring plate and all the parts attached thereto is supported. . However, the support member 1 is provided with two support arms 4,5, each of which supports half the weight of the ring plate 2 and the components attached thereto.
The width W of the support arms 4 and 5 cannot be made too large due to the presence of the ring mounting hole 6. That is, the value of the minimum width of the conventional support member is the same as the value of the minimum width of the support arms 4 and 5 of this embodiment. That is, in the support member 1 of this embodiment, a half of the load of the conventional support member is applied to the same width portion, and the durability is improved.

The present invention is not limited to the above embodiment. For example, instead of performing the positioning support of the ring plate 2 with respect to the support member 1 by using the nut 11 and the hexagon socket head bolt 12, the support member 1 The protrusion may be provided on the upper surface, and the protrusion may be fitted to the hole 2 a of the ring plate 2. Further, the bent shape of the support member 1 may be changed, or the support arms 4 and 5 may be used instead of two.
One support arm may also be provided at the center of the frame. Further, the shape of the ring plate 2 may be different from that of the embodiment, such as shortening the mounting portion 2b of the ring plate 2 to lengthen the front side or further bending the mounting portion 2b.

[0017]

As described above in detail, according to the present invention, when the adjacent ring plates are supported by one pillar at the connecting portion of the spinning frame, the weight of the ring plate can be reduced and the load applied to the supporting portion can be reduced. In addition, power consumption for raising and lowering the ring plate can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of a support member.

FIG. 2 is a sectional view corresponding to a section taken along line II-II of FIG.

FIG. 3 is a schematic view showing a deflection of a ring plate.

FIG. 4 is a schematic front view of a conventional device.

FIG. 5 is a plan view of a support member of the conventional device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Support member, 2 ... Ring plate, 3 ... Support part, 3a
... holes as attachment parts, 4, 5 ... support arms, 6 ... ring mounting holes, 9 ... pillars.

Claims (1)

(57) [Claims] 1. A support member having a pair of support arms provided with a pair of support arms extending from a support portion whose attachment portion to a pillar is formed substantially in the center at an interval of two pitches of a ring mounting hole of a ring plate. The ring plate support structure of the spinning machine that supports the ring plate.