JPH0748701Y2 - Held play amount adjustment structure in the heald frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> This invention relates to a structure for adjusting a heald play amount in a heald frame, and more specifically, it is installed between a pair of left and right side stays and an end portion of the side stays. The present invention relates to the improvement of the heald play amount adjusting technology in the heald frame of the type in which Steve is fitted to the inward projection of the side stay and is vertically adjustable in position with respect to the side stay. is there.

<< Prior Art and Its Problems >> Recently, high-speed operation of jet loom has become common, and along with this, the wear between the carrier rod attached to the heald frame and the heald is premature. The gap between the carrier rod and the heald is called heald play. This heald play is initially set to a predetermined small amount, but it wears as the loom continues to operate, gradually increases, and the heald movement amount also increases accordingly. Then, the impact force when the heald hits the carrier rod also increases, resulting in faster wear. Then, the runout of the heald during the operation of the loom becomes large, and the heald comes into contact with the adjacent yarn, which causes the generation of fluff, resulting in deterioration of the fabric quality.

Further, when the amount of heald play becomes large in this way, the weft becomes narrower, which causes poor opening and deteriorates the weavability.

As described above, changing the amount of heald play is an important problem in maintenance of the loom.

As a mechanism for adjusting the amount of heald play in the heald frame, for example, there is one disclosed in Japanese Utility Model Publication No. 63-8780. In this conventional technique, a locking groove of a middle hook hanger that engages with a middle hook is formed obliquely, and a plurality of locking means are provided in this locking groove to adjust the heald play amount stepwise. It has become.

By the way, the middle hook is a heald frame 1 with a weaving width of 150 cm.
There are about 20 pieces above and below. Therefore, if there are four heald frames, the number of middle hooks will be about 80. Therefore, when changing the amount of heald play, it is necessary to change over all of the middle hooks from about 80 pieces, which inevitably complicates the work. Moreover, with this conventional technique, the amount of heald play can be adjusted only stepwise, and it is often impossible to perform optimum adjustment.

<Purpose of the Invention> The present invention has been proposed in view of the drawbacks of the adjustment of the heald play amount in the above-mentioned conventional technology, and it is an object of the present invention to provide a structure capable of extremely simply and quickly adjusting the heald play amount in a stepless manner. To aim.

<Basic Configuration of Device> For this reason, in this device, the protrusion into which Steve is fitted is formed on at least one of the upper and lower sides of the side stay, and the position adjusting member for determining the position of the side stay and Steve via the protrusion. And a position fixing member that cooperates with the position adjusting member via the protrusion to apply up and down opposing forces to Steve.

<< Example >> As shown in FIGS. 1A and 1B, the heald frame 1
Is a pair of side stays 10 extending in the vertical direction (only one of which is shown in the figure) and a pair of steaves 20 bridging both side stays 10 at their upper and lower ends (only the upper one). (Illustration).

A protrusion 11 is formed at the upper end of the side stay 10 so as to project in the horizontal direction and in the extending direction of the Steve 20. A screw hole 13 is formed at a predetermined position of the protrusion 11 so as to extend vertically.

The Steve 20 is divided into a first space 21 and a second space 22 in the vertical direction, and a block 30 is fitted on the end side of the first space 21 so as not to move in the vertical direction. The projection 11 of the side stay 10 is accommodated in the second space 22 so as to be vertically movable relative to each other. A screw hole 31 is formed through the block 30 in the vertical direction. Steve 20 has screw holes formed on the protrusion 11 and the block 30.
Through holes 27 and 25 are formed at positions corresponding to 13 and 31, respectively.

A fixing bolt 51, which is a position fixing member, is inserted from the first through hole 25 of the Steve 20.
Reference numeral 51 is screwed into the screw hole 31 of the block 30, and its tip penetrates the block 30 and abuts against the upper surface of the protrusion 11.

An adjusting bolt 52, which is a position adjusting member, is inserted from the second through hole 27 of the Steve 20, and the adjusting bolt 52, which is the position adjusting member, is screwed into the screw hole 13 of the protrusion 11. In addition, the tip of the second space 22 penetrates the protrusion 11
Is abutted against the upper surface of the block 40 provided on the lower wall surface of the. In the figure, 61 and 62 are lock nuts for the bolts 51 and 52.

The operation of this embodiment will be described below. First, both bolts 51, 52
Loosen the lock nuts 61 and 62 of. Next, the fixing bolt 51 is loosened so that it is separated from the protrusion 11. After that, if you rotate the adjustment bolt 52, Steve 20
According to the rotating direction of the adjusting bolt 52 screwed with the screw 11, it moves vertically with respect to the protrusion 11.

When the proper position of Steve 20 is determined, the fixing bolt 51 is tightened to fix the position of Steve 20. As a fixing procedure, first, the fixing bolt 51 is tightened and the tip thereof is abutted against the protrusion 11. By further tightening the fixing bolt 51 from this state, a downward force is applied to the protrusion 11.

As a result, a downward force is also applied to the adjusting bolt 52 screwed to the protruding portion 11 via the protruding portion 11, and as a result, the adjusting bolt 52 is steered via the block 40 on which the adjusting bolt 52 abuts.
A downward force will be applied to the bottom of 20.

Further, by applying a downward force to the protrusion 11 by the fixing bolt 51, an upward force is applied to the fixing bolt 51 by a reaction with this. Therefore, an upward force is also applied to the block 30 to which the fixing bolt 51 is screwed, and as a result, an upward force is applied to the upper surface of the Steve 20. The force of the up and down opposite directions from the inside via the protruding portion 11 ensures the fixed state of the Steve 20. After this fixing operation, the lock nuts 61 and 62 are tightened to complete the operation of adjusting the heald play amount.

If this adjustment work is performed on both left and right sides of the heald frame, the adjustment of the heald play amount for all healds is completed at once.

In the above description, the bolts 51 and 52 are used for fixing and adjusting, respectively. However, depending on the work procedure, it is possible to adjust the position by the bolt 51 and fix it by the bolt 52, conversely. Neither of the two bolts is limited to fixing or adjusting.

In the embodiment shown in FIG. 2, the lower surface side of the protruding portion of the side stay 70 is formed into an inclined surface which is lowered toward the outside of the heald frame. Steve 80 is partitioned to form a first space 81 and a second space 82, as in the previous embodiment. At the end of the first space 81, the block 30 in which the screw hole 31 is formed is fitted in the same as in the previous embodiment. A fixing bolt 91 is screwed from a through hole 83 formed in Steve 80 toward a screw hole 31 of the block 30, and the tip of this bolt 91 is a protrusion through a block piece 94.
It is struck against the upper surface of 71.

A wedge-shaped block 95 having an inclined surface corresponding to the inclined surface of the protruding portion 71 is provided between the lower inclined surface of the protruding portion 71 and the bottom plate 84 of the second space 82.

The wedge-shaped block 95 has a screw hole 97 formed in the extending direction of the Steve 80, and the screw hole 97 has an adjusting hole inserted through a through hole 75 formed on a side surface of the side stay 70. Bolt 98 is screwed.

The operation of this embodiment will be described. After loosening the fixing bolt 91, by rotating the adjusting bolt 98 to move the wedge-shaped block 95 in the extending direction of the Steve 80, the Steve 80 moves vertically with respect to the side stay 70,
You can change the amount of heald play.

The position adjusting member and the position fixing member in this invention are
The present invention is not limited to the above embodiment. Anything having a position adjusting or position fixing function in the present invention falls within the technical concept of the present invention.

Further, in the above description, the position fixing member and the position adjusting member are clearly distinguished, but in the present invention, they may not always be clearly distinguished. For example, the adjusting bolt 98 in the embodiment shown in FIG. 2 not only functions as a position adjusting member, but also has a function as a position fixing member. Further, in the case of the example shown in FIG. 3, both bolts 101 and 102 have a function as a position fixing member and a function as a position adjusting member.

<Effect of device> According to this device, since the Steve is attached to the side stays so as to be vertically adjustable, the heald play amount of all healds can be adjusted in a short time and steplessly only by changing the mounting position of the Steve. It becomes possible to do.

Further, in this invention, the position fixing member of the Steve with respect to the side stay is designed to exert a fixing force in the vertical direction, and the position adjusting member is brought into contact with the horizontal surface. Therefore, there is no gap in the fixed state, and rattling is completely eliminated. As a result, even when the heald frame repeatedly violently moves up and down during high-speed operation of the loom, it can sufficiently withstand this and maintain the fixed state. In addition, the fixing force acting on the side stay from the position fixing member and the force by the position adjusting member are directed in opposite directions with the side stay serving as a fulcrum, so that the fixing state becomes more reliable.

[Brief description of drawings]

1 is a front sectional view showing a first embodiment of the present invention, FIG. 2 is a front sectional view showing a second embodiment of the present invention, and FIG. 3 is a third embodiment of the present invention. It is a front sectional view. 1 …… Held frame 10, 70, 100 …… Side stays 20, 80, 110 …… Steve 51, 52, 91, 98 …… Adjustment bolts

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right side stays (10, 70) and a Steve (20, erected between the upper and lower ends of the side stays).
And a position adjusting member for determining the position of the side stay and the Steve through the protrusion, the protrusion being formed on at least one of the upper and lower sides of the side stay, and into which the Steve is fitted. A heald play amount adjusting structure in a heald frame, comprising: a position fixing member that cooperates with a position adjusting member via a portion to apply up and down opposing forces to Steve.