JP3717948B2 - Weft measurement and storage device in jet loom - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to measuring and storing weft yarns and drawing out the weft yarns from the yarn winding surface by engaging and disengaging the yarn winding surface formed by a plurality of yarn winding surface forming pieces arranged in an annular shape and the weft locking body. The present invention relates to a weft length measuring storage device in a jet loom to be controlled.
[0002]
[Prior art]
The storage posture of the weft yarn wound and stored on the yarn winding surface, that is, the arrangement posture of the winding yarn affects the quality of the weft insertion state. Since the orientation of the wound yarn is affected by the type of weft yarn, the oil agent adhering to the weft yarn, etc., it is necessary to select a yarn winding surface forming piece suitable for the weft used.
[0003]
Japanese Utility Model Laid-Open No. 58-124481 and Japanese Utility Model Laid-Open No. 59-113371 disclose a weft length measuring device in which a member forming a thread winding surface can be replaced. In the conventional apparatus disclosed in Japanese Utility Model Laid-Open No. 58-124481, the member forming the bobbin winding surface has a rod shape, and the rod-shaped member is supported by screws. In the conventional apparatus disclosed in Japanese Utility Model Laid-Open No. 59-113371, a magnet is attached to a member that forms the thread winding surface, and the member that forms the thread winding surface is supported by the fixing plate by the attraction force of the magnet. ing.
[0004]
[Problems to be solved by the invention]
However, the screw-fastening support structure disclosed in Japanese Utility Model Laid-Open No. 58-124481 requires troublesome manual tightening and loosening.
[0005]
In the support structure using the magnetic force disclosed in Japanese Utility Model Laid-Open No. 59-113371, it is easy to replace the member forming the thread winding surface. However, since the intense vibration peculiar to the loom is transmitted to the weft length measuring and storing device, it is difficult to prevent the member forming the yarn winding surface and the fixing plate from slipping out or falling off by the magnetic force adsorption support method.
[0006]
An object of the present invention is to provide a weft length measuring and storing device that can easily replace a member that forms a thread winding surface and that can reliably support a member that forms a thread winding surface.
[0007]
[Means for Solving the Problems]
In the present invention Therefore, with the support base side for supporting the yarn winding surface formed piece provided clamping support portion, wherein the one piece of the yarn winding surface forming members for forming a yarn winding surface, the other An elastic deformation body is fixed to the piece to form an elastic deformation portion, and the yarn winding surface forming piece is formed in a U-shape as a whole, and the yarn winding surface forming piece has a narrow pressure applied to the yarn winding surface. The pinching support portion and the elastic deformation portion are inserted into the narrow pressure support portion so as to be in contact with the outer peripheral surface of the support portion and the elastic deformation portion is located in contact with the inner peripheral surface of the narrow pressure support portion. The elastically deforming portion was elastically deformed by the pinching action between the two, and the thread winding surface forming piece was supported on the support base.
[0008]
[Action]
The elastic deformation portion is elastically deformed and joined to the clamping support portion on the support base side. The yarn winding surface forming piece is supported by the substrate by the elastic restoring force of the elastically deforming elastically deformed portion.
[0009]
The wound-winding surface forming piece constituted by the length measurement wire and the rubber elastic deformation portion sandwiches the supporting base between the length measurement wire and the rubber elastic deformation portion. This pinching structure is the simplest as a structure for supporting the thread winding surface forming piece on the support base.
[0010]
【Example】
A first embodiment embodying the present invention will be described below with reference to FIGS.
Reference numeral 1 denotes a motor built-in portion, and the thread winding tube 2 circulates around the motor built-in portion 1 by the operation of a motor (not shown) in the motor built-in portion 1. A disc-shaped substrate 3 is fixed to the front surface of the motor built-in portion 1.
[0011]
On the front surface of the substrate 3, a plurality of length measuring division bodies 4 serving as a support base are fastened and fixed by screws 5. The length measuring segment 4 is composed of a substrate portion 6 and a length measuring arc portion 7. The plurality of length measurement division bodies 4 are arranged in the circumferential direction of the substrate 3, and the length measurement arc portion 7 of each length measurement division body 4 forms a substantially circular shape. An attachment position adjusting hole 6 a is formed in the substrate portion 6 in the radial direction of the substrate 3. The screw 5 is inserted into the attachment position adjusting hole 6a and tightened. Accordingly, the position of the length measuring segment 4 can be adjusted in the radial direction of the substrate 3.
[0012]
A thread-wound surface forming piece 8 is supported on the measurement arc portion 7 of the length measurement divided body 4. The bobbin winding surface forming piece 8 includes a length-measuring wire 8a that is bent and a rubber cylindrical elastic deformable body 8b that is fixed to the base end portion thereof. The distal end side of the measuring wire 8 a is bent and inverted so as to follow the circumferential surface of the measuring arc portion 7, and the distal end side of each measuring wire 8 a forms a yarn winding surface together with the outer circumferential surface of the measuring arc portion 7. .
[0013]
An electromagnetic solenoid 9 is disposed in the vicinity of one length measurement divided body 4, and the weft locking body 9 a is driven by excitation and demagnetization of the electromagnetic solenoid 9. The weft locking body 9a is engaged with and disengaged from the thread winding surface, and the weft Y fed from the thread winding tube 2 is wound and stored on the thread winding surface by the locking action of the weft locking body 9a. Weft holding member 9a becomes possible withdrawal of winding yarn Y ₁ on the yarn winding surface when disengaged from the yarn winding surface.
[0014]
As shown by a chain line in FIG. 1, the gap between the distal end side of the length measuring wire 8a of the yarn winding surface forming piece 8 and the elastic deformable body 8b has a substantially wedge shape. Further, the length measuring arc portion 7 of the length measuring divided body 4 has a tapered shape. Therefore, if the thread winding surface forming piece 8 of FIG. 1 is moved from the chain line position to the length measuring segment 4 side, the length measuring arc portion 7 easily enters between the length measuring wire 8a and the elastic deformable body 8b. .
[0015]
In a state where the thread winding surface forming piece 8 forming the thread winding surface is supported by the length measuring arc portion 7, the elastic deformable body 8 b is elastically joined to the inner peripheral surface side of the length measuring arc portion 7. That is, the length measuring arc portion 7 is pinched by the length measuring wire 8a and the elastic deformation body 8b joined to the thread winding surface side. Part. The bobbin winding surface forming piece 8 is supported by the length measuring divided body 4 by the elastic restoring force of the elastically deformable elastic body 8b. The elastic restoring force of rubber is strong, and the pinching force of the thread winding surface forming piece 8 against the length measuring arc portion 7 also increases due to the elastic deformation of the small elastic deformation body 8b. Moreover, since the friction coefficient of rubber is large, the length measurement divided body 4 and the bobbin winding surface forming body 8 are hardly displaced. For this reason, the pinching support position between the yarn winding surface forming piece 8 and the length measurement divided body 4 is shifted due to the influence of the vibration unique to the loom, or the yarn winding surface forming piece 8 falls off from the length measurement divided body 4. Never do.
[0016]
In order to remove the thread winding surface forming piece 8 from the length measuring segment 4, the thread winding surface forming piece 8 may be pulled out toward the position indicated by the chain line in FIG. Since the length measuring arc portion 7 is tapered, it is easy to remove the thread winding surface forming piece 8 from the length measuring divided body 4. That is, the thread winding surface forming piece 8 is easily attached to and detached from the length measuring segment 4. Accordingly, if a plurality of types of thread winding surface forming pieces comprising length measuring wires and elastic deformation bodies 8b having different shapes, friction coefficients, etc. are prepared, selection exchange of the thread winding surface forming pieces suitable for the type of weft can be easily performed. .
[0017]
Of course, the present invention is not limited to the above-described embodiment. For example, the embodiments shown in FIGS. 3 and 4 are also possible. A pinching support groove 7 a is formed on the inner peripheral surface of the length measuring arc portion 7 of the length measuring segment 4, and a positioning groove 7 b is formed on the outer peripheral surface of the length measuring arc portion 7. The cross-sectional shape of the pinching support groove 7a is an arc, and the curvature of the arc is substantially the same as the curvature of the cylindrical elastic deformable body 8b. The sectional shape of the positioning groove 7b is a semicircular arc, and the curvature of the semicircular arc is substantially the same as the curvature of the circumferential surface of the length measuring wire 8a. The length measuring wire 8a of the thread winding surface forming piece 8 is fitted into the positioning groove 7b, and the elastic deformable body 8b is fitted into the pinching support groove 7a. The presence of the pinching support groove 7a and the positioning groove 7b more reliably prevents the displacement of the yarn winding surface forming piece 8 in the circumferential direction of the yarn winding surface with respect to the length measuring segment 4. Further, it is easy to specify the attachment position of the thread winding surface forming piece 8 with respect to the length measuring segment 4.
[0018]
In the embodiment shown in FIG. 5, the thread winding surface forming piece 8 is composed of a length measuring wire 8 a and an elastic deformable body 10 made of a synthetic resin, and a pinching support hole 6 b is formed in the substrate portion 6 of the length measuring divided body 4. Is formed. The elastic deformable body 10 has a plurality of elastically deformable legs 10a, the elastic deformation leg 10a is fitted to the clamping support hole 6 b. Elastically deformable leg 10a is elastically joined to its peripheral surface with a clamp support hole 6 b, yarn winding surface forming piece 8 is supported by the measurement divided body 4 by the elastic restoring force of the elastic deformation legs 10a.
[0019]
In the embodiment of FIG. 6, a rubber elastic deformable body 10 is fixed to the length measuring divided body 4, and a pinching support hole 10 a is formed in the elastic deformable body 10. A length measuring wire 11 serving as a thread winding surface forming piece is fitted into the pinching support hole 10a. The diameter of the pinching support hole 10a is smaller than the diameter of the length measuring wire 11, and the pinching support hole 10a is deformed to expand and support the length measuring wire 11 by pressure.
[0020]
In another embodiment, for example, the measurement arc part 7 in FIG. 2 is formed as a thread winding surface forming piece, and the measurement arc part 7 is sandwiched by a clamping support part on the support base side. It is also possible to form a member that is pressure-supported and to support the length measuring arc portion 7.
[0021]
【The invention's effect】
As described above in detail, in the present invention, the elastically deforming portion is elastically deformed by the pinching action between the pinching support portion on the support base side and the elastically deforming portion so as to support the thread winding surface forming piece. The bobbin winding surface forming piece can be easily replaced, and the bobbin winding surface forming piece can be reliably supported.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing an embodiment embodying the present invention.
FIG. 2 is a front view of FIG.
FIG. 3 is a side sectional view showing another example.
4 is a front view of FIG. 3. FIG.
FIG. 5 is a side sectional view of a main part of another example.
FIG. 6 is a sectional side view of a main part of another example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 4 ... Length measuring division | segmentation body used as a support base, 7 ... Length measurement circular arc part used as a pinching support part, 8 ... Thread winding surface formation piece, 8a ... Measurement wire, 8b ... Elastic deformation body, 10 ... Elastic deformation body, 11: Measuring wire.

Claims (2)

Weft measurement for controlling the measurement and storage of the weft yarn and the weft drawing from the yarn winding surface by the engagement / disengagement of the yarn winding surface formed by a plurality of yarn winding surface forming pieces arranged in an annular shape and the weft engagement body In the long storage device,
Provided clamping support portion for supporting the substrate side for supporting the yarn winding surface forming member, to form a yarn winding surface on one piece of each yarn winding surface forming piece, the other piece elastic The deformable body is fastened to form an elastically deformable portion, and the thread winding surface forming piece is configured in a U shape as a whole,
The narrow pressure support portion of the thread winding surface forming piece is positioned such that the thread winding surface is in contact with the outer peripheral surface of the narrow pressure support portion and the elastic deformation portion is in contact with the inner peripheral surface of the narrow pressure support portion. The weft length measuring storage in the jet loom is inserted into the jet base and elastically deforms the elastic deformation portion by the pinching action between the pinching support portion and the elastic deformation portion and supports the yarn winding surface forming piece on the support base. apparatus. The thread winding surface forming piece includes a length measurement wire and a rubber elastic deformation portion fixed to the base end portion, and the length measurement wire and the elastic deformation portion pinch the support base. The weft length measuring storage device in the described jet loom.

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