JPH0849140A - Loom and its slay sword - Google Patents

Abstract

PURPOSE:To coincide the center of gravity of whole reed driving part with the center of reed driving part without increasing assembling manhour in assembling a reed driving part to a rocking shaft to which a slay sword is directly fixed. CONSTITUTION:This slay sword is integrally formed and equipped with an attaching part 2a having an inserting hole 4 capable of inserting a cylindrical rocking shaft 1, an arm part 2b extending from the attaching part 2a to the upper part and a spindle part 2c formed so as to bulge from the attaching part 2a on the side opposite to the arm part 2b. The shape and weight of the spindle part 2c of the slay sword 2 is set so that the center of gravity of a reed driving part constituted by fixing the slay sword 2 assembling each member 6 to 9, etc., to the arm part 2b is set so as to coincide with the axial center of the rocking shaft 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loom and a slate thereof.

[0002]

2. Description of the Related Art In general, while a loom is in operation, a sley is moved back and forth at high speed to beat a weft yarn into which a weft has been inserted, whereby a woven fabric is woven. The sled supporting the reed is fixed to the rocking shaft via the sled sword, and the rocking shaft reciprocally rotates at a predetermined rotation angle at a high speed to perform the back-and-forth motion of the sled.

An arm portion (lever portion) extending upward is formed on the sley sword fixed to the rocking shaft, and the sley is fixed to the upper end surface of the arm portion.
A reed is erected on the sley, and other assembling parts such as a sub-nozzle are attached. As a result, a larger weight is applied to the sley side (upper side) of the rocking shaft, and the center of gravity of the entire reed drive unit composed of the sleigh sword and sley assembled to the rocking shaft deviates from the axis of the rocking shaft. It will be in a state of being.

When the center of gravity of the entire reed drive portion is deviated from the axis of the rocking shaft as described above, the inertial force applied to the center of gravity causes a force deviated from the axis of the rocking shaft to act upon reversing the rocking shaft. A phenomenon occurs in which the rocking shaft swings back and forth each time it is inverted. Therefore, vibration and noise generated from the loom base during its operation become severe.

In recent years, when the loom speed has increased and the machine stand has been operated at a high rotation speed (for example, 1000 rpm or more), the vibration and noise generated from the machine stand increase with the increase in the machine operation rotation speed. , That measure is becoming a problem. For example, in order to prevent the rocking shaft from swinging, measures have been taken to thicken the rocking shaft to increase its strength or to support the rocking shaft at a plurality of points by bearing members.

On the other hand, the reed drive unit is weight-balanced with respect to the axis of the rocking shaft so that the center of gravity of the whole reed drive unit coincides with the axis of the rocking shaft, and the above-mentioned problem is suppressed. There is also a method. For example, according to Japanese Patent Application Laid-Open No. 4-214445, a rocking shaft (sley shaft) with a sley sword or the like fixed.
The center of gravity of the rocking shaft itself is eccentrically formed from the axis of the rocking shaft so that its center of gravity coincides with the axis of the rocking shaft.

Further, in Japanese Utility Model Laid-Open No. 56-107885, the locking is performed by fixing the lower end of each slate sword to a shaft and connecting the shaft to a rocking shaft (reed shaft) via a connecting member. A mechanism is used in which the lower end of the sley sword is swung through the shaft by the reciprocating rotation of the shaft to move the sley back and forth. By setting the weight of the shaft portion fixed to the lower end portion of the slate sword so as to balance the weight, the shaft portion has a function as a balance weight.

[0008]

However, Japanese Unexamined Patent Publication (Kokai) No. 4-2.
According to the configuration of Japanese Patent No. 14445, it is necessary to form the center of gravity of the locking shaft in advance so that the center of gravity of the locking shaft is displaced from the axial center of the locking shaft, which makes molding of the locking shaft considerably difficult. Further, when assembling the slate sword, etc., it is necessary to determine the sley sword's mounting position while considering the position of the center of gravity of the rocking shaft, and the mounting position requires a certain degree of accuracy. Further, according to the construction of Japanese Utility Model Laid-Open No. 56-107885, since the sley sword is not directly fixed to the rocking shaft, the number of parts is increased due to the connecting member and the shaft portion, and the assembling man-hour is also the rocking shaft of the sleet Compared to the structure that is fixed directly to the.

The present invention has been made to solve the above problems, and its object is to increase the number of assembling steps only by fixing the sley sword to the rocking shaft when assembling the reed drive unit to the rocking shaft. It is an object of the present invention to provide a loom and a slate sword of the loom that can substantially match the center of gravity of the reed drive unit with the rotation center of the rocking shaft.

[0010]

In order to solve the above problems, in the invention described in claim 1, an attachment portion for fixing to the locking shaft and an extension portion for supporting the sley extending from the attachment portion are provided. A sley is fixed to an upper end portion of the extension support portion on a side opposite to the extension support portion with respect to the extension support portion and the rocking shaft fixed by the attachment portion, and the reed is placed on the sley. With the assembling parts such as, etc. assembled, the weight of the reed drive unit that rotates integrally with the locking shaft is balanced with the weight unit such that the center of gravity of the entire reed drive unit substantially coincides with the rotation center of the locking shaft. Formed.

According to a second aspect of the invention, the weight portion of the sled sword is provided with a weight adjusting means for fine adjustment capable of changing the weight on the weight portion side with respect to the rotation center of the locking shaft.

According to a third aspect of the present invention, a plurality of sley swords according to the first aspect are fixed to the rocking shaft at predetermined intervals on a loom, and the sley that supports a reed is the extended support of each sley sword. The reed driving unit is supported at a plurality of locations.

[0013]

According to the invention described in claim 1, with the above construction, the sled sword is integrally formed with a weight portion for balancing the weight so that the center of gravity of the whole reed drive portion substantially coincides with the rotation center of the rocking shaft. Therefore, it is not necessary to assemble another member for weight balance when assembling the sley sword to the rocking shaft, and the number of assembling steps can be reduced.

According to the second aspect of the present invention, the weight adjusting means adjusts the weight on the weight side with respect to the center of rotation of the rocking shaft, thereby enabling fine adjustment of the center of gravity of the reed drive section. Become.

According to the third aspect of the present invention, the center of gravity of the entire reed drive unit in which the sled is supported by the extending support of the sley sword at a plurality of points substantially coincides with the rotation center of the rocking shaft, so that the loom is loomed. Vibration and noise generated during operation of the platform can be suppressed.

[0016]

【Example】

(First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

As shown in FIG. 2, the cylindrical rocking shaft 1 rotatably supported by the loom base is provided with a plurality (in this embodiment, 5 to 6 in the present embodiment) at predetermined intervals along the longitudinal direction thereof.
The sled sword 2 (about one piece) is fastened and fixed by the bolt 3. The slate sword 2 is integrally molded, and has a mounting portion 2a having an insertion hole 4 through which the locking shaft 1 can be inserted, an arm portion 2b extending upward from the mounting portion 2a in FIGS. 1 and 2, and an insertion hole. The mounting portion 2 is provided on the side opposite to the arm portion 2b with respect to the locking shaft 1 inserted in
and a weight portion 2c bulging from a.

As shown in FIG. 1, a bolt insertion hole 2d penetrating the insertion hole 4 is formed in each shoulder of the slate sword 2. Further, the rocking shaft 1 is formed with bolt holes 1a corresponding to the bolt insertion holes 2d at the fixing positions of the sley swords 2. Each sled sword 2 is fastened and fixed to the locking shaft 1 by the bolt 3 through the bolt insertion hole 2d and the bolt hole 1a in a state where the locking shaft 1 is inserted into the insertion hole 4. Further, the insertion hole 4 is formed with a cross-sectional area slightly larger than the outer peripheral shape of the locking shaft 1, so that the locking shaft 1 can be inserted into the insertion hole 4 relatively easily.

A mounting surface 5 is formed on the upper end of the arm portion 2b of each sled sword 2. The sley 6 is mounted on each mounting surface 5 and fixed by bolts (not shown), and is supported at a plurality of positions via the sley swords 2.

A support groove 6a extending along the longitudinal direction is formed in the upper part of the sley 6, and a deformed reed 7 is fixed in the support groove 6a in an upright state by a tightening action of a wedge member 8. Further, an assembling groove 6b is formed in the front portion (the left side portion in FIG. 2) of the sley 6 along the longitudinal direction thereof, and a plurality of sub-nozzles 9 are bolted at predetermined intervals via the assembling groove 6b. It is fastened and fixed by (not shown). Further, an assembling component such as a feeler (not shown) for detecting the completion of weft insertion of the weft is also fastened and fixed by a bolt through the assembling groove 6b. By assembling the members 6 to 9 and the like to the arm portion 2b of each sled sword 2 fixed to the locking shaft 1 in this manner, a reed driving unit 10 that reciprocally rotates integrally with the locking shaft 1 is configured.

The shape and weight of the weight portion 2c of the slate sword 2 are set so that the center of gravity of the reed drive portion 10 substantially coincides with the axis center of the locking shaft 1. In this embodiment, the rocking shaft 1 is 1000
It is designed to be reciprocally rotated at a high speed of rpm or more.

Next, the operation of the sword sword 2 constructed as described above will be described. When assembling the reed drive unit 10 to the rocking shaft 1, first, each sley sword 2 is passed through the rocking shaft 1 through its insertion hole 4, and each sley sword 2 is bolted through the bolts 3 at predetermined positions at substantially equal intervals. And, it is fastened and fixed to the rocking shaft 1 through the bolt holes 1a. At this time, since the insertion hole 4 is formed to have a cross-sectional area slightly larger than the outer peripheral shape of the locking shaft 1, the locking shaft 1 can be relatively easily passed through the insertion hole 4.

Next, the sled 6 is mounted on the mounting portion 5 at the upper end of the arm portion 2b of each sled sword 2 and is fastened and fixed by bolts in that state. Then, the deformed reed 7 is fixed in the standing state by the tightening action of the wedge member 8 in the support groove 6a of the sley 6. Further, a plurality of sub-nozzles 9 are fastened and fixed to the front side portion of the sley 6 at predetermined intervals with bolts through the assembling grooves 6b. Further, assembling parts such as feelers are similarly bolted through the assembling grooves 6b. Fasten and fasten.

In this way, the reed drive unit 10 is assembled to the rocking shaft 1, and in this state, the center of gravity of the reed drive unit 10 is substantially aligned with the axis of the rocking shaft 1. Since the weight portion 2c for weight balance is formed integrally with the slate sword 2 in this manner, it is not necessary to assemble another member for weight balance. And Slate Sword 2
Since a plurality of (5 to 6 in this embodiment) are assembled to one loom, the number of man-hours to be assembled per loom is larger than that in the case where weight balance is performed by assembling different members. Quite simplified.

During operation of the loom of this embodiment, the rocking shaft 1 reciprocally rotates at a predetermined angle at a high speed of 1000 rpm or more. However, the center of gravity of the reed drive unit 10 that rotates integrally with the rocking shaft 1 and the rocking shaft 1
Since the axis of the rocking shaft 1 substantially coincides with that of the rocking shaft 1, the rocking shaft 1 does not swing when it is reversed. for that reason,
Even when the loom is operated at a high speed, the vibration and noise generated from the machine base can be suppressed to be smaller than those of the loom machine machine in which the center of gravity of the reed drive unit deviates from the axis of the rocking shaft.

As described in detail above, according to the sled sword 2 of this embodiment, the weight portion 2c for weight balance is attached to the mounting portion 2a.
Since it is integrally formed on the side opposite to the arm portion 2b,
Each sled sword 2 is locked to the rocking shaft 1 without assembling another member with the sled sword for weight balance.
All you need to do is assemble it by fixing it to. Therefore, the center of gravity of the reed drive unit 10 can be made substantially coincident with the axial center of the rocking shaft 1 without increasing the man-hours for assembling the reed drive unit 10 assembled to the rocking shaft 1.

Further, since the rocking of the rocking shaft 1 is suppressed, it is not necessary to make the rocking shaft thick to increase its strength, or to take measures for supporting the rocking shaft at a plurality of places by bearing members. Further, according to the loom including the reed driving unit 10 having the sword 2 of the present embodiment as a component, even if the loom is driven at a high speed at 1000 rpm or more, the center of gravity of the reed driving unit is not affected by vibration and noise generated from the machine base. It can be kept small compared to a loom base that is offset from the axis of the rocking shaft. (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. Since only the configuration of the sword sword 2 is different from that of the first embodiment, only the different points will be described.

As shown in FIG. 3, the slate sword 2 is integrally molded and has a mounting portion 2a having a fitting recess 11 into which the locking shaft 1 can be fitted, and the mounting portion 2a extending upward from FIG. The protruding arm portion 2b and the weight portion 2 bulgingly formed on the opposite side of the fitting recess 11 from the arm portion 2b.
and c. The mounting portion 2a is the opening 1 of the fitting recess 11.
A pair of seat portions 12 is formed to extend outward (leftward in FIG. 3) from a position corresponding to 1a. The seat 12 is formed with a bolt insertion hole 12a and a bolt hole 12b.

The weight and shape of the weight portion 2c of the sley sword 2 are the same as those in the first embodiment. The sword sword 2 for supporting the members 6 to 9 and the like by the arm portion 2b is fixed to the rocking shaft 1. The center of gravity of the drive unit 10 is set so as to substantially coincide with the axis of the locking shaft 1.

When the sley sword 2 of this embodiment is fixed to the locking shaft 1, the locking shaft 1 is passed through the fitting recess 11 of the sley sword 2, and the bolt is inserted into the seat 12 through the bolt insertion holes 12a and the bolt holes 12b. Conclude 3. Since the locking shaft 1 is tightened in the fitting recess 11 by fastening the bolt 3, and the contact area of the locking recess 1 with the fitting recess 11 is relatively wide, the sley sword 2 is firmly gripped by the locking shaft 1. It can be fixed by force. Moreover, since the number of bolts 3 is only two for one slate sword 2, the assembling work becomes easier. Besides, the same effects as those of the first embodiment can be obtained. (Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. Since only the configuration of the sword sword 2 is different from that of the first embodiment, only the different points will be described.

As shown in FIG. 4, the slate sword 2 has substantially the same shape as that of the first embodiment, and the bulging degree of the weight portion 2c is slightly smaller than that of the first embodiment. The weight portion 2c is formed with a bolt hole 13 that connects the bottom portion of the weight portion 2c with the insertion hole 4. A plurality of (three in the figure) weight plates 14 are fastened and fixed to the bottom of the weight portion 2c by bolts 15 through a bolt insertion hole 14a formed in the center thereof and a bolt hole 13 of the weight portion 2c. . The number of the weight plates 14 can be replaced by removing the fastening of the bolts 15. The weight plate 14 is for fine adjustment, and the weight plate 1 fixed to the bottom of the weight portion 2c is used.
It is possible to finely adjust the position of the center of gravity of the reed drive unit 10 by changing the number of sheets of No. 4.

Therefore, by properly changing the number of the weight plates 14, the center of gravity can be set at a position where vibration and noise are minimized. In addition, the first
The same effect as the embodiment can be obtained.

The present invention is not limited to the above-described embodiments, but may be configured as follows, for example, within the scope of the invention. (1) As shown in FIG. 5, the mounting portion 2a of the slate sword 2
A bolt insertion hole 2d penetrating from the bottom to the insertion hole 4 is formed in the weight portion 2c protruding downward from the bolt 3
May be fastened from below the sled sword 2 through the bolt insertion hole 2d and the bolt hole 1a. Also, the insertion hole 4 may be formed in a circular shape having a cross-sectional area slightly larger than the outer diameter of the locking shaft 1 like the sled sword 2.

(2) As shown in FIG. 6, a shaft portion 16 extending vertically downward is fixed to the bottom portion of the weight portion 2c, and a weight plate 17 for fine adjustment is attached to the shaft portion 16 through its insertion hole 17a. While being inserted, the weight plate 17 is fixed to a predetermined position of the shaft portion 16 by the bolt 18 via the bolt hole 17b. Then, the weight plate 17 is attached to the shaft portion 1.
A configuration may be adopted in which the fixed position is changed by sliding in the vertical direction along 6 to adjust the position of the center of gravity of the reed driving unit 10. According to this structure, by sliding the weight plate 17 along the shaft portion 16, the fine adjustment range becomes continuous as compared with the sword sword 2 of FIG. 4 described in the third embodiment, and the center of gravity is more finely tuned. The position can be adjusted.

(3) In the third embodiment, the weight plate 14 for fine adjustment may be detachably fixed to the side portion of the weight portion 2c. Further, the weight plate 14 may be configured by a combination of various weight plates 14 having different weights so that the fine adjustment width can be set finely.

(4) The sword 2 shown in FIGS. 3 and 5 may be provided with weight plates 14 and 18 as weight adjusting means as shown in FIGS. 4 and 6. (5) A fitting recess having a large opening into which the locking shaft 1 can be fitted from the side (for example, the left-right direction side in FIG. 1) is formed in the mounting portion 2a of the slate sword 2, and the weight portion 2c is cantilevered from the mounting portion 2a. The structure may be integrally formed in a state of being supported by. According to this structure, the locking shaft 1 can be fitted into the fitting recess from the side of the sley sword 2, so that it is not necessary to pass the sley sword 2 from the end of the locking shaft 1 one by one. As a result, the mounting of the slate sword 2 on the locking shaft 1 can be further simplified.

The invention grasped from the above embodiment and not described in the scope of the claims will be described below together with the effect thereof. (1) In claim 2, the weight adjusting means comprises a plurality of weight members detachably fixed to the weight portion. According to this configuration, the same effect as that of the invention described in claim 2 can be obtained.

(2) In claim 2, the weight adjusting means has a shaft portion fixed so as to extend from the weight portion to the side opposite to the extending support portion, and a weight which can be fixed to the shaft portion and is slidable. It is composed of a member. According to this configuration, the same effect as that of the invention described in claim 2 can be obtained.

[0039]

As described in detail above, according to the invention of claim 1, since the weight portion is integrally formed with the slate sword,
When the reed drive unit is assembled to the rocking shaft, the center of gravity of the entire reed drive unit can be made to substantially coincide with the rotation center of the rocking shaft without increasing the number of assembling steps.

According to the second aspect of the present invention, the weight adjusting means adjusts the weight on the weight side with respect to the rotation center of the rocking shaft, so that the center of gravity of the entire reed drive section is adjusted to the rotation center of the rocking shaft. There is an excellent effect that the fine adjustment can be made to an appropriate position that substantially coincides with.

According to the third aspect of the invention, the center of gravity of the entire reed drive unit assembled to the rocking shaft substantially coincides with the center of rotation of the rocking shaft, so vibrations generated during operation of the loom base and It has an excellent effect of suppressing noise.

[Brief description of drawings]

FIG. 1 is a side view of a reed drive unit of a loom according to a first embodiment of the present invention.

FIG. 2 is a partial perspective view of a reed driving unit according to the first embodiment.

FIG. 3 is a side view of a reed drive unit according to a second embodiment.

FIG. 4 is a side view of a reed driving unit according to a third embodiment.

FIG. 5 is a side view of a reed driving unit according to another example.

FIG. 6 is a side view of a reed driving unit according to another example different from FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rocking shaft, 2 ... Sleigh sword, 2a ... Attachment part, 2b ... Arm part as an extension support part, 2c ... Weight part, 6 ... Sley, 7 ... Deformed reed as a reed, 8 ... Wedge as an assembly part Member, 9 ... Sub-nozzle as assembly part, 1
0 ... Reed drive part, 14, 17 ... Weight plate constituting weight adjusting means, 15 ... Bolt constituting weight adjusting means, 16 ... Shaft portion constituting weight adjusting means, 18 ... Bolt constituting weight adjusting means.

Claims (3)

[Claims] 1. A mounting portion for fixing to a rocking shaft, an extension support portion for supporting a sley extending from the mounting portion, and the locking shaft fixed to the mounting portion with respect to the locking shaft. On the side opposite to the extension support part, the sley is fixed to the upper end part of the extension support part, and integrally mounted with the rocking shaft in a state in which an assembly component such as a reed is assembled on the sley. A sword sword of a loom integrally formed with a weight portion for weight-balancing so that the center of gravity of the entire reed driving portion substantially coincides with the rotation center of the rocking shaft. 2. The weight portion of the sled sword is provided with a weight adjusting means for fine adjustment capable of changing the weight of the weight portion with respect to the center of rotation of the rocking shaft.
The sword of the loom described in. 3. The sled sword according to claim 1,
A loom comprising a plurality of reed drive units fixed to the rocking shaft at predetermined intervals and supporting the reeds at a plurality of positions by the extended support portions of the respective sley swords.