JPS602207Y2 - Fixing device for reeds and air guides in air injection looms - Google Patents

Description

[Detailed description of the invention] Technical field This invention is an air-injection type loom that performs weft insertion by placing the weft on jet air and making it fly through the warp opening.
This invention relates to a fixing device for the reed and air guide.

PRIOR ART A conventional example of such a fixing device will be explained with reference to FIG.
A reed holder 3 for holding a reed 2 is fixed to the upper end of the swinging sled sword 1, and this reed holder 3 has a recessed mounting groove 4 formed therein.

The lower frame 2a of the reed 2, a support body 6 for fixedly supporting five rows of air guides, and a spacer 7 are fitted into the inner surface of the mounting groove 4 so as to be in contact with each other.

Both contact surfaces 7a and 4a between the spacer 7 and the mounting groove 4 are oblique to each other.

Then, by screwing the fixing screw 8 inserted from the top surface of the spacer 7 into the female threaded portion 9 at the bottom of the reed holder 3, the contact surface 7a of the spacer 7 is pressed into contact with the contact surface 4a of the mounting groove 4, and the reed The lower frame 2a of 2 and the support body 6 of the air guide 5 are fixed in position between the other side of the spacer 7 and the inner side of the mounting groove 4.

Additionally, an auxiliary nozzle 10 is provided on the upper surface of the support 6 of the air guide 5.
Several air guides are arranged facing one set of five rows of air guides, and air supply holes 11 communicating with the auxiliary nozzles 10 are formed inside the support body 6 so as to extend in the longitudinal direction of the support body 6. This air supply hole 1 is located in the center of the outer bottom surface of the support body 6.
A mounting female threaded hole 12 communicating with the mounting hole 1 is formed.

An insertion hole 14 is formed at the bottom of the reed holder 3 for inserting a tubular mounting fitting 13 for air supply.
A female mounting threaded portion 15 formed at the inner end of 3 is screwed into the female mounting hole 12.

In this way, the five rows of air guides for guiding the jet air and conveying the weft yarn move in synchronization with the reed beating, retracting from the warp W opening during reeding and entering the warp W opening when the reeding is retracted. Therefore, the reed 2 and the air guide 5 are fixed to the reed holder 3 in a co-tight state.

Therefore, if either the lower frame 2a of the reed 2 or the support body 6 of the air guide 5 is removed by loosening the fixing screw 8, the other cannot be fixed to the reed holder 3.

For example, when you want to replace the reed 2, in the conventional device described above, if you loosen the fixing screw 8, not only the lower frame 2a of the reed 2 but also the support 6 of the air guide 5 will be unrestrained, so that it will not fall. There was a risk that the air guide 5 would be damaged.

In addition, since the support body 6 of the air guide 5 is divided into several parts to more than ten pieces in length, it is difficult to accurately reattach each separate support body 6 to a predetermined position.

In particular, since the reed 2 has to be replaced frequently depending on the type of fabric, it is troublesome to attach the reed 2 and the air guide 5 each time.

Purpose The purpose of this invention is to fix only the support of the air guide independently to the reed holder by devising the configuration of the mounting bracket necessary to supply air to the air supply hole inside the support. An object of the present invention is to provide a fixing device for a reed and an air guide.

EXAMPLE Hereinafter, an example embodying this invention will be described with reference to FIGS. 2 to 4.

In this embodiment, only the points that are different from the explanation of the conventional example described above will be supplemented.

As shown in FIG. 4, the mounting bracket 13 for air supply is formed into a stepped shape by a small-diameter male mounting threaded part 15, a large-diameter fixing male threaded part 16, and a connecting part 17 between these male threaded parts 15 and 16. has been done.

Further, a concave groove 1 is formed on the outer bottom surface of the support 6 of the air guide 5.
8 is formed, and a female threaded hole 12 for mounting is formed in the center of this groove 18, and the insertion hole 14 at the bottom of the reed holder 3 corresponds to the female threaded hole 12 through this groove 18. There is.

The male threaded part 15 of the mounting bracket 13 passes through the insertion hole 14 and the groove 18 and is screwed into the female threaded hole 12, and the tightening nut screwed into the other male threaded part 16 of the mounting bracket 13. 19 is pressed against the outer bottom surface of the reed holder 3 via a washer 20.

The connecting fitting 22 of the air hose 21 is screwed onto the mounting fitting 13 attached in this manner.

As shown in FIG. 3, the auxiliary nozzle 10 on the support 6 passes through the air supply hole 11 and is locked in the groove 18 on the outer bottom surface of the support 6, and a communication hole 23 communicating with the air supply hole 11 is formed. ing.

Note that 24 and 25 are sealing plugs.

Next, installation and removal of the reed 2 will be explained.

First, when attaching the lower frame 2a of the reed 2 and the support body 6 of the air guide 5 to the reed holder 3, set the reed 2 and air guide 5 to predetermined positions, tighten the fixing screws 8, and then tighten the lower frame 2a and the air guide 5. After the support body 6 is sandwiched between the spacers 7 (fixing means for alignment), the tightening nut 19 of the mounting bracket 13 is tightened.

Also, if you want to remove only the reed 2 from this installed state,
Loosen the fixing screw 8 to free the spacer 7 and place the lower frame 2a of the reed 2 in an unrestrained state.

At this time, the support body 6 is held in a restrained state by the tightening nut 19 of the mounting fitting 13, so that the air guide 5 does not shift.

In other words, this mounting bracket 13 serves as a fixing member between the support body 6 of the air guide 5 and the reed holder 3.

In the above embodiment, the auxiliary nozzle 10 separate from the air guide 5 was provided on the support 6, but the fixing device according to this invention has an air injection port formed in the air guide 5 itself. It can also be applied to an air-injection type loom in which the auxiliary nozzle 10 has a similar role.

Effects In this invention, which has been described in detail above, the mounting bracket 13 for air supply connected to the support body 6 of the air guide 5 is inserted into the insertion hole 14 at the bottom of the reed holder 3, and the mounting bracket 13 is attached to the air guide 5.
Since the support body 6 and the reed holder 3 are fixed as a fixing member, only the support body 6 can be made independent by cleverly utilizing the mounting bracket 13 necessary for supplying air to the air supply hole 11 inside the support body 6. It can be fixed to the reed holder 3 by pressure, and when replacing the reed 2, the air Guide 5
The support body 6 is maintained in a restrained state, and there is no damage caused by the air guide 5 falling, and the work of assembling the reed 2 and the air guide 5 is simplified.

In particular, in the present invention, the mounting bracket 13 is used not only for supplying air but also for fixing the support 6 of the air guide 5, so there is no need for a separate means for fixing the support 6 independently, and the structure is It also has the effect of making it easier.

[Brief Description of the Drawings] Figure 1 is a sectional view showing a conventional fixing device, Figure 2 is an exploded perspective view showing the fixing device according to this invention, and Figures 3 and 4 are the same as shown in Figure 2. FIG. 3 is a cross-sectional view of the fixing device when it is assembled.

Claims (1)

[Scope of utility model registration request] 1. The reed holder is provided with fixing means for fastening the lower frame of the reed and the support of the air guide together to the holder, and an air supply hole is formed inside this support, and the reed is inserted into the air supply hole. A reed for an air injection loom, characterized in that a mounting bracket for air supply inserted through an insertion hole at the bottom of the holder is connected, and the mounting bracket is used as a fixing member between an air guide support and a reed holder. and air guide fixing device. 2. A male threaded part is formed on the mounting bracket, and a tightening nut that is tightened on the outer bottom surface of the reed holder is screwed into this male threaded part so that only the support of the air guide can be fixed to the reed holder under pressure. A fixing device for a reed and an air guide in an air injection loom as claimed in claim 1.