JPH10158950A - Middle hook attaching/detaching device for heald frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the attaching/detaching operation for the middle hooks in a loom to be made in a short time at the time of looming change operation without the need of substantial equipment revision. SOLUTION: In a heald frame designed to mutually connect a middle hook hanger 5 to be mounted thereon and a heald bar 4 holding both ends of a heald through a middle hook 3, there are provided the body proper 2a and a holding section set up on the body proper 2a and disposed at a position against the plural heald frames 1. In this case, the body proper 2a is constructed in a nearly box-shaped fashion having a pair of plate-like members 22, 23 provided with an open section 21 to be collectively threaded with the middle hooks 3, and the holding section is made up of the above pair of platelike members 22, 23 and a holding guide 25 disposed in between the plate-like members so as to alignedly and collectively hold the respective middle hooks 3. Furthermore, the above pair of plate-like members 22, 23 is provided with a through groove 24 into which the heald bars 4 connected to the respective middle hooks 3 are insertable via the open section 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a middle hook attaching / detaching apparatus for replacing a heald at the time of machine change, and to an apparatus for facilitating the attaching / detaching operation and shortening the operation time.

[0002]

2. Description of the Related Art Conventionally, as a technique for facilitating the work of attaching and detaching a middle hook, for example, Japanese Unexamined Utility Model Publication No. 1-141782 is known. This is described with reference to FIG.
Denotes a heald frame, which indicates an upper frame member. Reference numeral 3 denotes a middle hook, and 4 denotes a heald bar (carrier rod) which is inserted through and held by the middle hook 3, and an upper end of a heald (not shown) into which the warp is inserted is locked.
Reference numeral 5 denotes a middle hook hanger which is attached to the fitting groove 11 of the heald frame 1. A mounting portion 6 which fits into the fitting groove 11 of the heald frame 1 is formed above the middle hook hanger 5, and a lower portion thereof. Is formed with a middle hook mounting portion 7 having an engaging groove 71 with which the hook head 31 of the middle hook 3 is engaged. Here, in the middle hook mounting portion 7, of the front wall 72 and the rear wall 73, the rear wall 7
3 is extended toward the middle hook insertion side to form a guide wall 74 projecting from the front wall 72.

[0003] In a machine change operation, the middle hook 3 is detached from the middle hook hanger 5, the middle hook 3 is detached from the heald bar 4, and the heald bar 4 and the heald are taken out integrally. Then, the middle hook 3 is attached to the heald bar 4 that holds the heald through which the warp from the warp beam (not shown) is passed, and then the middle hook 3 is attached to the middle hook hanger 5.
At this time, the middle hook 3 is pressed against the guide wall 74 of the middle hook hanger 5 and moved in the direction of arrow A, whereby the middle hook 3 can be easily inserted into the engagement groove 71.

[0004]

However, in the above-mentioned prior art, although the workability when attaching the middle hooks during the machine changing operation is improved, the middle hooks are detached one by one for each heald frame. Therefore, it takes a lot of time to remove and attach all the middle hooks. That is, four to eight heald frames are usually used per loom, and about 16 heald frames may be used depending on the type of cloth. The middle hook hanger 5 has 10 to 15
The heald bars 4 are firmly fixed to the heald frame 1 by providing them at equal intervals. Therefore, for example, even when four heald frames are used and ten middle hook hangers 5 are provided above and below the heald frame 1, a total of 80 upper and lower heald frames need to be attached and detached. In the case of the conventional technique in which the individual parts are detached one by one, it takes a lot of time. For this reason, it is also known that the heald frames are replaced for each heald frame without attaching and detaching the middle hooks. It is necessary to newly install a large-scale preparation device for performing preparatory work, such as bringing in, and it is difficult to adopt it because it requires enormous costs such as equipment changes.

The present invention has been made in view of such a conventional problem, and makes it possible to extremely quickly remove and attach a middle hook of a loom at the time of a machine change operation or the like without performing a major equipment change. The purpose is to be able to do it in time.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention provides a first method.
In a heald frame in which both a middle hook hanger attached to the heald frame and a heald bar holding both ends of the heald are connected by middle hooks,
A middle hook holding portion is provided on the main body and is disposed at a position facing the plurality of heald frames.

Second, the main body is formed in a substantially box shape having a pair of plate-like members provided with an opening through which the middle hooks mounted on the plurality of heald frames can be inserted one by one. Is constituted by the pair of plate-shaped members and a holding guide arranged between the plate-shaped members so as to be able to collectively hold the middle hooks. A through-groove is provided, through which the heald bar connected to each middle hook can be inserted from the opening when the middle hook is inserted.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. In addition, the same reference numerals are given to the same members described as the related art, and the description is omitted. 1 to 4 show an embodiment of the present invention. First, the configuration will be described with reference to FIGS. FIG. 1 is a perspective view of a middle hook attaching / detaching device according to one embodiment of the present invention and its related components, FIG. 2 is an explanatory diagram showing a procedure for attaching / detaching a middle hook during a machine change operation, and FIG. FIG. Since the heald frame 1 is vertically symmetrical, only the upper portion will be described.

Referring to FIG. 1, reference numeral 2a denotes a main body of a middle hook attaching / detaching device 2, which has a length bridging a plurality of heald frames 1 (four in this example) arranged at intervals. The portions A and B are formed symmetrically with respect to the center 2b. The main body 2a is formed in a substantially box-like shape by a pair of plate-like members 22 and 23 facing each other.
Opening portions 21 into which the number of middle hooks 3 (equivalent to four heald frames 1) in the longitudinal direction of the main body portion 2a can be inserted at both sides A and B, respectively, of the pair of plates. A holding guide 2 composed of a plurality of pins, for example, five pins, on both side portions A and B between the shape members 22 and 23, respectively.
5 is attached. These paired plate members 22,
The middle hook 3 and the holding guide 25 constitute a holding portion of the middle hook 3 for holding the middle hooks 3 mounted on the plurality of heald frames one by one. The holding guides 25 are provided at four locations on both sides A and B of the main body 2a, and the interval between the four holding guides 25 is the same as the interval between the plurality of heald frames 1; The holding guide 25 is located at a position opposed to the middle hook 3. At this position, the middle hook 3 is held on the inner side surfaces of the pair of plate members 22 and 23 facing the holding guide 25.

The middle hook 3 is generally formed of an elastic resin material. In the present embodiment, when the holding guide 25 holds the middle hook 3,
Is slightly press-fitted, the dimensions of the holding guide 25 are determined, whereby the middle hook 3 is firmly held,
The middle hook 3 does not fall even when the main body 2a faces downward. The holding guide 25 is located below the upper part 4a of the heald bar 4 inserted into the middle hook 3, as shown by the two-dot chain line in FIG.
Thus, when the heald bar 4 is detached from the middle hook 3, the hook head 31 side is sufficiently elastically deformed, and the middle hook 3 is firmly restrained by the holding guide 25.
The heald bar 4 can be easily taken out. Furthermore, the pair of plate members 22 and 23 have both side portions A and B respectively.
There are provided through grooves 24 through which the heald bars 4 connected to the middle hooks 3 for the number of the heald frames can be inserted from the opening 21. As described above, the main body portion 2a can simultaneously hold the middle hooks 3 corresponding to the number of heald frames at both sides A and B at once, so that
Desorption work can be performed for a row of locations.

Next, as an operation of the above-described embodiment, a procedure for attaching and detaching the middle hook at the time of changing the machine will be described with reference to FIGS.
This will be described with reference to FIGS. FIG. 3 (a)
FIG. 2A is an explanatory view of a main part of FIG.
3 shows a cross section cut along a plane parallel to both (an upright plane). FIG. 3B is a plan view showing the main body 2a side of FIG. 3A, and partially shows a cross section obtained by cutting a dashed line C along a horizontal plane. Here, when performing the work of unloading, FIG.
(A) is grasped on the right side portion B of the main body portion 2a shown in the figure, and the left side portion A of the main body portion 2a is brought in so as to bridge the lower side of the upper part of the plurality of heald frames 1 shown in the drawing, and the holding guide 25 is connected to each heald. The heald frames 1 are positioned so as to face each other, that is, directly below the middle hooks 3 of each heald frame 1. At this time, the middle hook 3 and the holding guide 25 are in the state shown in FIG. Next, as shown in FIG. 2 (b), the middle hook 3 is inserted from the opening portion 21 and held in a line in the longitudinal direction of the main body 2a.
2 and 23 are passed through the through grooves 24. At this time,
The holding guide 25 is in a state shown by a two-dot chain line in FIG.

Thereafter, as shown in FIG. 2C, the main body 2a is moved in the direction indicated by the arrow X, and the middle hook 3 is disengaged from the middle hook hanger 5. Then, FIG.
As shown in (2), the body hook 2a is rotated clockwise to remove the middle hook 3 from the heald bar-4. Then, the middle hook 3 is inserted into the middle hook hanger -5 during
However, since the operation may be performed in a completely reverse order to the above-described operation, the description is omitted.

Although the middle hook hanger 5 is shown only at one location above one heald frame 1, the heald frame 1
In the longitudinal direction (woven width direction), 10
Since about 15 parts are provided at equal intervals, the parts other than the parts shown in the above embodiment are switched to the left part A of the main body 2a while holding the middle hook 3, and the right part B is used. The middle hook 3 is held. Further, in order to remove the middle hook 3 at another place, the middle hook 3 held at both sides A and B may be taken out and used again, but it is preferable that another middle hook detaching device be used without taking out the middle hook 3. It is better to use 2. In this case, the mounting operation from FIG. 2D to FIG. 2A can be performed while holding the middle hooks 3 on both side portions A and B even during the hanging operation. The detachability can be performed without touching the middle hook 3, and the workability is extremely good.

In the main body 2a of the above embodiment, both sides A and B are provided around the center 2b, and a plurality of heald frames 1 are provided.
Although the middle hooks 3 of the number of the middle hooks 3 can be detached and attached in two places, the side parts A and B may be divided at the center part 2b. At this time, for example, if the number of heald frames is eight,
When the number of the middle hooks 3 increases, for example, four rows of the middle hooks 3 are detached and attached, and the main body 2a is small at that time, so that the workability is good. Further, if the same shape as the both side parts A and B provided on the main body 2a of the above embodiment is symmetrically provided on the upper and lower sides of the main body 2a, the detaching work is performed in a total of four places on the left, right, upper and lower sides. It is possible,
Thereby, the number of the middle hook attaching / detaching devices 2 can be further reduced.

FIGS. 4A to 4C show another embodiment of the present invention. In the above embodiment, the case where the holding guide 25 is constituted by a plurality of pins is shown. Then, the holding guide 35 formed with the concave portion 35a for holding the middle hook 3
Is integrally formed between a pair of plate-like members 22 and 23. If this is integrally formed of a resin material, the work of assembling the holding guide 35 and the like becomes unnecessary and the weight is low because the The work of attaching and detaching the hook 3 is also improved. In addition, between the concave portions 35a above the holding guide 35, U as an elastic member is provided.
When the middle hook 3 is inserted and held in the concave portion 35a, the leaf spring 50 acts so as to clamp the middle hook 3 by the urging force, so that the holding state is improved. Thus, even if the main body 2a is turned upside down, the middle hook 3 can be reliably prevented from dropping.

FIG. 4B shows a holding guide 45 having a concave portion 45a for holding the middle hook 3 as in FIG. 4A.
Is formed integrally between the pair of plate-like members 22 and 23, and an enlarged portion 45a is formed on the open side of the concave portion 45a so that the middle hook 3 can be easily inserted into the concave portion 45a. A highly flexible resin material such as urethane 51 is adhered to the concave portion 45a, so that the urethane 51 adheres to the middle hook 3 while being deformed following the shape of the middle hook 3, and the elastic force and the frictional force cause the urethane 51 to adhere. 3 can be reliably held. Note that rubber or the like may be used instead of the urethane 51 as the resin material having high flexibility. FIG.
As shown in the figure, a holding guide 25 composed of a plurality of pins
It is needless to say that a leaf spring or a highly flexible resin material may be attached to the holding guide 25 even when the holding guide 25 is provided. FIG. 4C shows a case in which the handle 52 is provided below the main body 2a. With this, when the main body 2a is rotated clockwise in FIG. 2D, the handle 52 is grasped. Thereby, workability is improved.

[0017]

As described above, according to the present invention, a plurality of middle hooks are provided by a middle hook attaching / detaching device having a middle hook holding portion provided at a position opposed to a plurality of heald frames. Can be detached while holding them all at once, so that when replacing the heald at the time of the machine change operation, the time for the middle hook attaching and detaching operation can be shortened.

Further, the main body is formed in a substantially box shape having a pair of plate-like members provided with an opening into which the middle hooks are inserted one by one, and the holding portions are arranged such that the middle hooks are held at regular intervals. The pair of plate-shaped members, and a holding guide arranged between the plate-shaped members, and a pair of plate-shaped members is provided with a through groove through which a heald bar connected to each middle hook can be inserted from the opening. According to this configuration, the middle hook can be easily and reliably attached to and detached from the middle hook hanger and the heald bar at the time of attaching / detaching the middle hook while the structure is simple.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view showing one embodiment of the present invention.

FIG. 2 is a perspective explanatory view showing a middle hook attaching / detaching operation procedure of the apparatus shown in FIG. 1;

FIG. 3 is an explanatory view of a main part of FIG. 2;

FIG. 4 is an explanatory view showing another embodiment of the present invention.

FIG. 5 is a perspective explanatory view showing a conventional apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heald frame 2 Middle hook attachment / detachment device 2a Main body part 3 Middle hook 4 Herd bar 5 Middle hook hanger 21 Opening part 22 Plate member (holding part) 23 Plate member (holding part) 24 Through groove 25 Holding guide (holding part) ) 35 Holding guide (holding part) 45 Holding guide (holding part)

Claims (2)

[Claims] 1. A heald frame in which a middle hook hanger attached to the heald frame and a heald bar for holding both ends of the heald are connected by middle hooks. A middle hook attaching / detaching device for a heald frame, comprising a holding portion for a middle hook disposed at a position opposed to the plurality of heald frames. 2. The main body portion is formed in a substantially box shape having a pair of plate-like members having an opening portion into which a plurality of middle hooks mounted on a plurality of heald frames can be inserted at once. The pair of plate-shaped members and a holding guide disposed between the plate-shaped members so as to be able to hold the hooks all at once, and each middle hook is inserted into the pair of plate-shaped members from the open portion. 2. The device according to claim 1, wherein a through groove is provided for inserting a heald bar connected to each of the middle hooks from the opening.