JP3240665B2 - Heald frame support device for loom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting a heald frame in a loom, and more particularly to a pair of first ropes for transmitting a driving force and a spring for resisting the driving force for opening a warp. The present invention relates to a device for supporting a heald frame in a loom having a heald frame supported by a pair of second ropes.

[0002]

2. Description of the Related Art Conventionally, in order to open a warp, a heddle frame supported by a pair of first ropes transmitting a driving force and a pair of second ropes transmitting an action of a spring against the driving force is provided. In a heald frame support device of a loom, each rope is repeatedly subjected to a load, and each rope is bent and guided by a guide roller. In addition, the height of the heald frame was changed and the height of the heald frame was changed, so that a regular opening could not be performed, which had a defect that the weft insertion was adversely affected. In particular, as the loom speed has been increased recently, the rope tends to stretch due to an increase in its inertia force, and a difference tends to occur between the actual opening amount and the set opening amount. This has led to an increase in mistakes.

Therefore, conventionally, in such a device for supporting a heald frame in a loom, it is essential to adjust the height position of the heald frame, and hooks provided on the extension portions of the side stays on both sides of the heald frame. The first and second ropes are engaged with the part, and a turnbuckle is interposed in the middle of the first rope,
Adjust the height of the heald frame by adjusting the length of the rope (for example, Japanese Utility Model Application Laid-Open No. 62-203277), or insert an adjustment bolt through the connecting body attached to the outer surface of the side stay. A nut locked to the upper surface of the connecting body is screwed to one end of the adjustment bolt, a first rope connected to the other end of the adjustment bolt is connected, and the nut is rotated to rotate the nut to the adjustment bolt. The height position of the heald frame is adjusted by changing the screwing position (see Japanese Utility Model Application Laid-Open No. 61-187384).

[0004]

However, the operation of the turnbuckle interposed in the middle of the first rope is extremely poor in workability, and the operation disclosed in Japanese Utility Model Laid-Open Publication No. 61-187384 is not sufficient. , The bolt is screwed from the side stay to the connecting body, and both are tightened and fixed,
There is a problem that it is inconvenient to attach / detach the heald frame at the time of passing through.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem of the conventional heald frame connecting device in a loom, in which the heald frame can be easily attached and detached, and the height position of the heald frame can be adjusted. It is an object of the present invention to provide a heald frame support device for a simple loom.

[0006] To achieve the above object, the present invention provides:
A connecting device for a heald frame in a loom having a heald frame supported by a pair of first ropes transmitting a driving force and a pair of second ropes transmitting an action of a spring against the driving force,
A block having a first support portion constituting a holding means for holding the first rope in an adjustable manner, a block having a second support portion to which the second rope is fixed, and a side stay of this block and a heald frame are fastened. consists of a clamp, said the side stay protruding portion is provided, on the block, its
Extends has an open end downwardly to the upper end of the one in which a groove-shaped recess that engages the projection portion is provided.

[0007]

A block having a first supporting portion constituting a holding means for holding the first rope in an adjustable manner, a block having a second supporting portion to which the second rope is fixed, and a side stay of the block and the heald frame are formed. consists of a clamp tightened, the side stays provided projections, the block has at its upper end
Since a groove-shaped concave portion having an open end and extending downward and engaging with the protrusion is provided , it is possible to loosen the tightening screw and remove the clamp from the block toward the second rope (heald). The same applies to the supporting device on the opposite side of the frame.), The heald frame can be removed from the block by lifting the heald frame to cause the protrusion of the side stay to escape from the groove-shaped recess, that is, to remove the heald frame from the loom. can be removed from, also, Sai
If the heddle frame is dropped with the protrusion of the stay facing the open end of the recess at the upper end of the block , the heald frame can be engaged with the block, and the heald frame can be easily attached by tightening with a clamp. .

In order to mount the heald frame, the side stays on both sides of the heald frame are respectively made to face the block, and one of the side stays of the heald frame and the block is engaged with the other projection. Then, the clamp is lowered to the tightening position, and the side stay and the block are integrally tightened by the tightening screw. Then, the working length of the first rope can be adjusted by the holding means constituted by the first support portion, whereby the height position of the heald frame can be adjusted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a device for supporting a heald frame in a loom shown in the drawings.

In FIG. 1, reference numeral 1 denotes a cam which rotates in synchronization with the rotation of the machine base. One end of a pair of first ropes 4, 4 is fixed to one end of a cam lever 2 which is swung by the cam 1, The other ends of the first ropes 4, 4 are connected to the heald frame 3 via the supporting devices 5, 5 according to the present invention. On the other hand, one end of the second ropes 6, 6 is fixed to the support devices 5, 5, and the other end of the second ropes 6, 6 can swing on the frame 8 of the machine through the support shafts 7, 7. And is fixed to jack levers 10, 10 urged in the rotating direction by springs 9, 9. In addition, 11 and 11 are guide rollers of the first ropes 4 and 4, respectively.

Therefore, when the machine is operated, the cam 1 rotates and the cam lever 2 swings, so that the first ropes 4, 4 connected to one end of the cam 1 rotate the guide roller 1.
Driving force is transmitted to the heald frame 3 via 1 and 11, and the heald frame 3 is lowered in accordance with the swing of the cam lever 2. On the other hand, a spring 9, which is fixed to the supporting device 5, 5 and resists the driving force,
The second ropes 6, 6 for transmitting the operation of No. 9 are for returning the heald frame 3 quickly, that is, for raising the heald frame 3.

FIG. 2 shows a supporting device 5, 5 according to the invention.
Is shown on only one side, but the supporting device 5 is symmetrical as shown in FIG. 1 and is only one side to avoid duplication of description. The side stay 3a of the heald frame 3 has an extended portion 3b.
protrusion 3c protruding outward of b is, F-shape forming block of the support apparatus 5 for supporting the heald frames 3 (hereinafter, referred to as "F-shaped block".) open end 12 the upper end of
The heald frame 3 is inserted into the groove-shaped recess 13 extending downward with 13 a, and the heald frame 3 is supported by the support device 5. The F-shaped block 12 has holding means 15 projecting outward at the top and fixing outwardly at the center and holding the first rope 4 in an adjustable manner, like the second support portion 14 for fixing the second rope 6. The first supporting portion 16 to be constituted is formed.

The holding means 15 has a bolt 18 which is screwed into a female screw provided on the top 17a of a metal fitting 17 fixed to the end of the first rope 4.
8a is locked to the first support portion 16, and its screw portion is passed through a through hole of the first support portion 16 and screwed into the female screw of the top portion 17a of the metal fitting 17. Therefore,
The working length of the first rope 4 is adjusted by the degree of screwing between the bolt 18 and the metal fitting 17. The height position of the heald frame 3 is determined by the working length of the first rope 4, so that the adjustment of the height position of the heald frame 3 is achieved by turning the bolt 18.

[0014] 19 is a clamp, is intended to tighten together the extension 3 b and F-shaped block 12 of the heald frame 3. Reference numeral 21 denotes a washer. The clamp 19 accompanies the adjustment of the height position of the bracket 17 (first rope) by the rotation of the bolt 18 by the tightening force of the tightening screws 20 and 20 of the clamp 19. Screw 2
It is interposed between 0, 20 and the metal fitting 17. Further, a projection 22 is provided on the upper surface of the second support portion 14, and when the clamp screws 19 are loosened to remove the clamp 19 upward, the detached clamp 19 is a so-called retracted position. This is for supporting between the projection 22 and the second rope 6.

Now, in order to remove the heald frame 3 from the machine base, first, the tightening screws 20, 20 are loosened, the clamp 19 is removed from the F-shaped block 12 toward the second rope 6, and the protrusion 22 and the second Lock between rope 6. Next, when the heald frame 3 is lifted, the heald frame 3 can be easily removed from the machine base because the projection 3c of the side stay 3a comes out of the concave portion 13 of the F-shaped block 12.

In order to mount the heald frame 3, the projections 3c of the side stays 3a on both sides of the heald frame 3 face the open end 13a of the concave portion 13 of the F-shaped block 12, and the heald frame 3
Into the recess 13, supported by its closed end 13 b, the clamp 19 is lowered from the locking position, the extension 3 b of the side stay 3 a of the heald frame 3 and the F-shaped block 12 are fastened by the fastening screws 20, 20. Together. Then, the first support portion 16 constituting the holding means 15 is used to secure the bolt 1
By rotating the head 18a of the heald frame 8, the length of the first rope 4 can be adjusted, whereby the height position of the heald frame 3 can be adjusted. The height position of the heald frame 3 is determined by attaching the scale to the machine base or by setting one side of the right-angled ruler to the upper surface of the second support portion of the F-shaped block 12 (there is no set bolt as in the conventional device). )).

The holding means 15 is configured such that a bolt 18 is fixed to a metal fitting 17 at one end of the first rope 4, a screw portion of the bolt 18 is passed through a through hole of the first support portion 16, and a nut is screwed. Can also be configured.

[0018]

According to the present invention, since the heald frame can be easily attached and detached, the work involving the attachment and detachment of the heald frame such as warp replacement can be performed quickly, and the height position of the heald frame can be easily adjusted. Therefore, it is possible to prevent the occurrence of a weft insertion error based on the abnormality of the heald frame position caused by the elongation of the rope.

[Brief description of the drawings]

FIG. 1 is a schematic view of a heald frame support device in a loom showing an embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of a heald frame support device in the loom of FIG. 1;

[Explanation of symbols]

 Reference Signs List 3 heald frame 3a side stay 3b extension 3c projection 4 first rope 5 support device 6 second rope 12 block 13 recess 14 second support 15 holding means 16 first support 17 metal fitting 18 bolt 19 clamp 20 tightening screw 21 Washer 22 Projection

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 61-187384 (JP, U) JP-A 3-120586 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) D03C 13/00

Claims (1)

(57) [Claims] An apparatus for supporting a heald frame in a loom having a heald frame supported by a pair of first ropes transmitting a driving force and a pair of second ropes transmitting a spring action against the driving force, A block having a first support portion constituting a holding means for holding the first rope in an adjustable manner, a block having a second support portion to which the second rope is fixed, and a side stay of this block and a heald frame are fastened. consists of a clamp, the protrusion is provided on the side stay, the blanking
The lock has an open end at its upper end and extends downward,
A device for supporting a heald frame in a loom, wherein a groove-shaped concave portion is provided for engaging with the protrusion.