JPH10140436A - Movement of loom harness guide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the movement of loom harness guides and to make capable of moving and positioning harness guides with easy operations without charging too much burden to operators in changing a harness. SOLUTION: This movement of loom harness guides is obtained by fixing each supporting shaft 21 of a pair of harness guides 20 on each of right and left loom frames 10, 10, by fitting at east one shaft 1 so as to be capable of two position movement between guiding and shunting positions of the harness and by being equipped with both a positioning component 40 which is fixed in the fitted side of the movable shaft 21 and has a dent extending in the rectangular direction to the moving one of the shaft 21, and a lever component 50 so as to rotate in the circumferential direction around the shaft 21 and to be fitted in the position where the component 50 can fit to the dent of the component 40 in an advanced state of the shaft 21 into the guiding position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for moving a heald frame guide in a loom, and more particularly, to a heald frame guide supported on each of left and right frames of a loom via a shaft having at least one of the frames movable forward and backward. The present invention relates to improvement of workability at the time of heald frame replacement in a loom having a moving mechanism of (1).

[0002]

2. Description of the Related Art Generally, when a machine is changed due to exhaustion of a prepared warp or a change in a warp used for weaving, the working time is shortened and the operation rate of a loom is increased. In a preparatory stage, a warp wound around a loom beam is passed through a dropper, heald, reed, or the like, and these are collectively mounted on the loom.

A heald frame which is connected to an opening device such as a cam, a crank, or a dobby machine during weaving and is driven up and down is slidably engaged with a heald frame guide supported on the frame of the loom on both sides thereof. The heald frame does not rattle during vertical drive. In such a case, when performing the above machine changing operation, the heald frame must be removed or inserted from above the heald frame guide disposed at a high place. Therefore, there is a problem that the work becomes very troublesome and a long working time is required. As means for solving such a problem, at least one of the pair of heald frame guides can be advanced and retracted in the width direction of the loom, and the interval between the two heald frame guides is made wider than the left and right width of the heald frame. Things have been proposed in the past.

An example of such a prior art is described in Japanese Utility Model Publication No. 6-34379. In the technique proposed here, the heald frame guide is assembled to a loom via a slide mechanism having an actuator, and the heald frame guide is moved in the width direction of the loom by driving the actuator.

Another conventional technique for moving the heald frame guide is disclosed in Japanese Patent Application Laid-Open No. Hei 7-138636. In the technique proposed here, a spindle supporting a heald frame guide is inserted into a cylindrical holder fixed to a frame of a loom, and is urged in a direction away from the heald frame by a compression spring. Further, the positioning of the support shaft at a position for guiding the heald frame is performed by engaging a locking piece urged toward the support shaft by a spring provided on the holder with an engagement surface formed on the support shaft. By doing that. Therefore, at the guide position of the heald frame, the support shaft is locked and positioned by the locking piece. When the locking piece is lifted, the support shaft moves by the force of the compression spring, and the heald frame guide is separated from the heald frame. Is what you do.

[0006]

In the prior art described above, Japanese Utility Model Publication No. Hei 6-34379 uses an actuator, which requires a large-scale structure. I can't say. Further, Japanese Patent Application Laid-Open No. 7-138636 has a complicated structure and requires that the support shaft be moved against the force of the compression spring when the heald frame guide is moved to the guide position. Will be a heavy burden. Moreover, when the locking piece is removed from the support shaft to separate the heald frame guide from the heald frame, the heald frame guide suddenly moves due to the spring force, which is extremely dangerous.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple structure, and does not impose a burden on an operator when replacing a heald frame. The purpose of the present invention is to improve the operability of the machine change work by performing the movement and positioning of the machine.

[0008]

Therefore, the moving mechanism of the heald frame guide according to the present invention has a pair of heald frame guide supporting shafts which are non-rotatably supported by the left and right frames of the loom, respectively. At least one of the support shafts is removably mounted between two positions of a guide position and a retreat position of the heald frame. Further, the support shaft is fixed to a frame of a loom on a side where the support shaft is removably mounted. A positioning member having a concave portion extending in a direction perpendicular to the direction of movement of the shaft, and engaging with the concave portion so as to be rotatable in the circumferential direction with respect to the support shaft and the support shaft has advanced to the guide position. And a lever member attached at a possible position.

Further, the positioning member of the present invention may have a guide portion which is continuous with the open end of the recess formed in the positioning member and extends in the retreating direction of the shaft.

Further, the lever member of the present invention has a large-diameter portion straddling the concave portion and a screw portion screwed to the shaft, and the screw portion and the large-diameter portion hold the position with respect to the positioning member. It is preferable to have a function of

[0011]

In order to remove the heald frame from the loom when replacing the heald frame, first, the lever member is rotated to disengage the positioning member from the recess, and the heald frame is moved in the width direction of the loom. I do. In this state, the lever member is moved in a direction away from the heald frame, and the heald frame guide together with the support shaft is moved to the retracted position. As a result, the interval between the two heald frame guides is wider than the left and right width of the heald frame, and the heald frame is removed in this state. On the other hand, in order to attach the heald frame to the loom, in a state where the space between the two heald frame guides is wider than the left and right width of the heald frame, the heald frame is disposed between the heald frame guides, and then the lever member is moved to the guide position of the heald frame. Move to. In this state, the heald frame is held at the guide position by rotating the lever member to engage with the concave portion of the positioning member.

Further, by forming the guide portion extending in the retreating direction of the support shaft on the positioning member as described above, the lever member is guided by the guide portion when the heald frame guide is moved. The guide can be easily moved.

Further, as described above, the lever member has the large-diameter portion straddling the concave portion and the screw portion screwed to the support shaft, so that the tightening force of the screw is reduced by the large-diameter portion and the support shaft. This acts as a force for tightening the positioning member, thereby preventing rattling of the shaft during weaving and holding the lever member in a non-rotatable state.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIGS. 1 and 2, a shaft bracket 12 is erected and fixed inside a frame 10 of the loom, and a support shaft on which a heald frame guide 20 is fixedly supported is mounted on the shaft bracket 12. 21 is reciprocally fitted and supported. As shown in FIG. 4, a slide key 27 is attached to the support shaft 21 and a key groove 13 is formed in the shaft bracket 21.
3, the support shaft 21 cannot rotate.
Although only one heald frame guide is shown in the drawing for convenience, the other heald frame guide is similarly supported by the frame via a support shaft. In this case, the support shaft may be fixed to the frame of the loom, or may be supported so as to be able to reciprocate similarly to the illustrated one.
(Hereinafter, the other heald frame guide will be described as being fixed.)

The heald frame guide 20 includes a guide holder 22
And a guide member 23 fixed to the upper and lower ends of the guide holder 22. The guide member 23
A plurality of vertically extending notches (not shown) are provided in a comb shape, and each of the notches engages with a side stay 31 of a plurality of heald frames 30 arranged in the longitudinal direction of the loom to guide the heald frames 30. ing.

A side stand 11 is fixed upright on the frame 10 of the loom, and a support shaft 21 extends through the side stand 11. A cylinder 40, which is a positioning member of the present invention, is fixed to the side stand 11 at a position where the support shaft 21 penetrates, and the support shaft 21 is fitted into the cylinder 40.

As shown in FIG. 4, the cylinder 40 is a cylindrical member having a flange, and has a support shaft 2 inside.
1 has a hole into which it is inserted. Also, in the cylinder 40,
A concave portion extending in the circumferential direction, that is, a concave groove 41;
A guide hole 42 continuous with the open end of the concave groove 41 and extending in the retreating direction of the support shaft 21 is formed.

As shown in FIG. 2 to FIG.
A small-diameter portion 24 is formed at one end of the cylinder 40 side. A collar 25 is rotatably fitted into the small diameter portion 24, and a stopper 26 for preventing the collar 25 from moving in the axial direction is fixed by a set screw.
A female thread portion 29 is formed on the collar 25,
With the support shaft 21 fitted in the cylinder 40,
An operation lever 50 as a lever member is attached to the female screw portion 29 through the guide hole 42.

The operation lever 50 has a male screw portion 52 screwed to the female screw portion 29 at the tip thereof, and has a disk-shaped head 53 which is manually operated by an operator and a cylinder 40. And a flange 51 that is in contact with a large diameter portion.
In the illustrated state, the lever member 50 is engaged with the concave groove 41 of the cylinder 40 to prevent the support shaft 21 from moving in the axial direction, and the lever member 50 is screwed in.
The support shaft 21 is held in the cylinder 40 by the tightening force between the collar 25 and the flange 51.

When replacing the heald frame 30 in accordance with the machine change, first, the heald frame 30 is held by a transport device (not shown), the tightening force of the lever member 50 is loosened, and the lever member 50 rotates together with the collar 25. Make it possible.
In this state, the lever member 50 is rotated to the position of the guide hole 42, and then the lever member 50 is moved along the guide hole 42 in the retreating direction of the support shaft 21. Accordingly, the support shaft 21 is moved to the retracted position, and the heald frame guide 20 is separated from the heald frame 30 accordingly. Therefore, the interval between the pair of heald frame guides 20 that support the heald frame 30 on both sides is wider than the left and right widths of the heald frame 30, and the heald frame 30
Without any further lifting. Thereafter, the connection between the heald frame 30 and the opening device is disconnected, and the heald frame 30 is detached from the loom, whereby the removal of the heald frame 30 is completed.

In order to mount the newly prepared heald frame 30 on the loom, the heald frame 3 is set in a state where the interval between the pair of heald frame guides 20 is wider than the left and right width of the heald frame 30 as described above.
0 is placed between both heald frame guides. Next, the heald frame 30 is engaged with the guide member of the fixed heald frame guide. Thereafter, the lever member 50 is moved in the direction of the heald frame 30, and the heald frame guide 20 is moved together with the support shaft 21 to the guide position of the heald frame 30, contrary to the above procedure. The mounting position of the lever member 50 with respect to the support shaft 21 is such that the heald frame guide 20 is disposed at the guide position when the lever member 50 reaches the heald frame side end of the guide hole 42, that is, the position of the concave groove 41. Is set to
Therefore, the position of the heald frame guide 20 is determined only by moving the lever member 50 to the end on the heald frame side in the guide hole 42.

Thereafter, the position of the support shaft 21 and the heald frame guide 20 in the advancing / retreating direction is maintained by rotating the lever member 50 to engage with the concave groove 41. Further, by screwing the lever member 50 into the collar 25, a tightening force acts between the collar 25 and the flange 51 of the lever member 50, and the support shaft 21 is held by the cylinder 40, and the backlash of the support shaft 21 is reduced. At the same time, the lever member 50 cannot rotate and does not come off the concave groove 41 due to vibration or the like.

In the above description, the positioning member 40 has a cylindrical shape over the entire axial direction. Instead, the positioning member 40 may have a shape as shown in FIG. That is, the guide portion of the positioning member 40 does not necessarily have to be the elongated hole shape as described above, and may have only the guide surface 73 that guides the movement of the lever member. Further, the positioning member does not necessarily need to include the guide portion, and may have a configuration in which only the concave portion in which the guide portion is omitted is provided. Further, the movement of the lever member may be guided by a member provided separately from the positioning member.

In the above description, the bracket for supporting the support shaft and the positioning member of the present invention are separate members and are fixed at different positions. However, the positioning member may be fixed to the bracket. Alternatively, the bracket and the positioning member may be integrally formed.

Further, in the above description, the threaded portion and the large diameter portion are provided on the lever member so as to exert a tightening force on the positioning member.
As shown in the above, when the lever member is engaged with the concave groove, the axis of the lever member is located below a horizontal plane passing through the center of the support shaft, and the position is held by the weight of the lever member. If so, it is not always necessary to provide them.

[0027]

According to the present invention, the heald frame guide can be moved and positioned in accordance with the change of the machine with the simple structure as described above and with the simple operation of the lever member. Simplification and time reduction can be achieved.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a heddle frame guide moving mechanism of the present invention.

FIG. 2 is a partial cross-sectional side view showing a main part of a heddle frame guide moving mechanism of the present invention.

FIG. 3 is a sectional view taken along a cutting line AA in FIG. 2;

FIG. 4 is a perspective view showing a positioning member of a heddle frame guide moving mechanism according to the present invention.

FIG. 5 is a perspective view showing another example of the positioning member of the moving mechanism of the heald frame guide of the present invention.

[Explanation of symbols]

 Reference Signs List 10 loom frame 20 heald frame guide 21 support shaft 30 heald frame 40 cylinder 41 concave groove 42 guide hole 50 lever member 51 flange 52 screw part

Claims (3)

[Claims] A support shaft for a pair of heald frame guides is non-rotatably supported on each of the left and right frames of the loom, and at least one of the support shafts is located between a guide position and a retreat position of the heald frame. A recessed part fixed to the frame of the loom on the side where the support shaft is provided so as to be capable of moving forward and backward between the positions, and extending in a direction perpendicular to the direction of movement of the support shaft. A positioning member is formed, and a lever member is attached to the support shaft so as to be rotatable in a circumferential direction and to be engaged with the recess when the support shaft is advanced to the guide position. A heddle frame guide moving mechanism in a loom, characterized in that: 2. The heald frame guide according to claim 1, wherein said positioning member has a guide portion which is continuous with a release end of said concave portion and extends in a retreating direction of said support shaft. Moving mechanism. 3. The lever member has a large-diameter portion straddling the concave portion and a screw portion screwed to the support shaft.
3. The mechanism for moving a heald frame guide according to claim 1, further comprising a function of maintaining a position with respect to a positioning member by cooperation of the screw portion and the large diameter portion.