JPH055877U - Dobby machine - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to visually observe the adsorption part of the electromagnetic solenoid. [Structure] Holding hooks 1a and 1b that are held at operating / non-operating positions to determine the up / down movement of the heald frame, and action levers 12a and 12b for rotating the holding hooks 1a and 1b to operating / non-operating positions. And an auxiliary cam 15 for rotating the action levers 12a and 12b, and a suction lever portion 17 of the action levers 12a and 12b.
electromagnetic solenoids 18a for magnetically attracting and holding a and 17b,
In the dobby machine provided with 18b, the holding hooks 1 are provided with electromagnetic solenoids 18a and 18b that magnetically attract and hold the attraction lever portions 17a and 17b of the action levers 12a and 12b so that the attraction portions 19a and 19b can be visually observed.
It is characterized in that it is arranged on the side of a and 1b.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a dobby machine that determines up and down of a heald frame of a loom by an electromagnetic solenoid, and more particularly to a dobby machine in which a suction portion of the electromagnetic solenoid can be visually checked.

[0002]

[Prior Art]

 In a loom having a heald frame, the dobbing machine raises and lowers the heald frame.

The applicant previously proposed an electronic type Dobby machine (Japanese Patent Application No. 63-78152, etc.) that determines the elevation of the heald frame by using an electromagnetic solenoid in place of the conventional card type Dobby machine. ..

This dobby machine will be described with reference to FIGS. 3 and 4.

First, in the main body 22 of the dobby machine, a jack lever 24 for connecting the end portion 23 a of the wire 23 and for pulling the wire 23 is provided rotatably around a fixed shaft 25. When the jack lever 24 is not rotated at the position shown in the figure, the above-mentioned heald frame is held in the lowered (or raised) position, and when the jack lever 24 is rotated, the heald frame is moved via the wire 23. It is raised (or lowered).

A V-shaped lever 27 is connected to the jack lever 24 via a lever ratio adjusting arm 26, and the V-shaped lever 27 is rotatably provided around a fixed shaft 28. The v-shaped lever 27 is connected to the vaux plate 2 having movable hooks 3a and 3b at both ends by a pin 29.

On the other hand, a reciprocating lever 32 that engages with the cam shaft 30a of the cam 30 and reciprocates in the direction of the arrow 31 shown in the figure by the rotation of the cam 30 is provided, and a pin 33 is driven at the tip of the reciprocating lever 32. The lever 34 is connected. Although not shown, the drive lever 34 is rotatably fixed to the main body 22 of the dobby machine at the same position as the position of the pin 29 of the substantially dog-legged lever 27, and the pressing pieces 34a and 34b at both ends thereof are attached to the balk plate 2 respectively. The movable hooks 3a and 3b are provided so as to come into contact with the back surface on the opposite side.

In the dobby machine body 22, a pair of upper and lower holding hooks 36a and 36b having hook portions 35a and 35b that engage with the movable hooks 3a and 3b of the balk plate 2 are respectively rotated by fixed shafts 37a and 37b. It is provided freely (the lower holding hook 36b is not shown).

A spring 38 is provided between the hooks 35a and 35b, and the hooks 35a and 35b are constantly urged to rotate to a non-acting position where they come into contact with the stoppers 39a and 39b. Action levers 41a and 41b are engaged with the holding hooks 36a and 36b via movable portions 40a and 40b that rotate the hook portions 35a and 35b to the operating position and the non-operating position.

The action levers 41 a and 41 b include engagement lever portions 42 a and 42 b engaged with the movable portions 40 a and 40 b, driven lever portions 44 a and 44 b operated by the auxiliary cam 43, and action levers 41 a and 41 b. It is composed of attraction lever portions 45a and 45b made of a magnetic material for rotating to the action / non-action position. Electromagnetic solenoids 46a and 46b are arranged facing the suction lever portions 45a and 45b, respectively.

Next, the case of raising and lowering the heald frame in the dobby machine of this prior application will be described.

First, as the auxiliary cam 43 rotates, the suction lever portions 45a and 45b alternately move toward and away from the corresponding electromagnetic solenoids 46a and 46b, and the holding hooks 36a and 36b move toward the movable hooks 3a and 3b. It rotates to the non-acting position where it is disengaged from the action position where it engages with. At this time, if the electromagnetic solenoids 46a, 46b are energized, the hook portions 35a, 35b of the holding hooks 36a, 36b are held in the operating position, and if not energized, they are in the non-operating position.

The rotation of the jack lever 24 when the upper holding hook 36a shown in the figure is in the operating position will now be described.

When the reciprocating lever 32 is reciprocated in the direction of the arrow 31 shown by the cam 43, the drive lever 34 is rotated. At this time, when the drive lever 34 is rotated counterclockwise from the illustrated state, the hook portion 35a of the upper holding hook 36a and the movable hook 3a of the balk plate 2 are engaged with each other, so that the balk plate 2 of the balk plate 2 is engaged. The pin 2a connecting the movable hook 3a is fixed, so that the turning force of the drive lever 34 is transmitted from the pressing piece 34b to the balk plate 2, and the balk plate 2 is rotated counterclockwise about the pin 2a. Accordingly, the dog-legged lever 27 connected by the pin 29 is rotated in the clockwise direction, and the jack lever 24 is pulled in the clockwise direction via the lever ratio adjusting arm 26. It will be lowered.

Next, when the reciprocating lever 32 moves in the direction opposite to that described above, the lower movable hook 3b of the balk plate 2 has a holding hook 36b (not shown) therebelow, which is the same as the above when the holding hook 36b is in the operating position. Similarly, when the jack lever 24 is rotated and is in the non-acting position, the jack lever 24 is not rotated.

That is, when the electromagnetic solenoids 46a and 46b are energized, the holding hooks 36a and 36b are in the operating position, and when the jack lever 24 is not energized, the holding hooks 36a and 36b are in the non-operating position, and the jack lever 24 is not rotated. It will be.

[0017]

[Problems to be solved by the device]

 By the way, to visually observe the suction part of the electromagnetic solenoid that holds the suction lever, you can see the suction part of the upper electromagnetic solenoid by removing the upper lid of the dobby machine, but The attraction part of the electromagnetic solenoid is a blind spot for observation and cannot be visually observed.

Therefore, the present invention has been made in view of such circumstances, and an object thereof is to provide a dobby machine capable of visually observing the attracting portion of the electromagnetic solenoid. ..

[0019]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a holding hook that is held in an operating / non-operating position to determine whether the heald frame moves up and down, and an action for rotating the holding hook to the operating / non-operating position. In a dobby machine equipped with a lever, an auxiliary cam that rotates the action lever, and an electromagnetic solenoid that magnetically attracts and holds the attraction lever portion of the action lever, the attraction lever portion of the action lever is attracted and held magnetically. An electromagnetic solenoid is arranged on the side of the holding hook so that the adsorption part can be seen.

[0020]

[Action]

 By arranging an electromagnetic solenoid that holds the attraction lever of the action lever by magnetic attraction on the holding hook side so that the attraction can be viewed, you can visually observe the attraction of both the upper and lower electromagnetic solenoids from behind. Is possible.

[0021]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, the structure of the jack lever 24, the lever ratio adjusting arm 26, the doglegged lever 27, the swing lever 34, and the reciprocating lever 32 driven by the cam 30 that swings the swing lever 34 is shown in FIG. Although not shown, it is as described in FIGS. 3 and 4, and the same components as those in FIGS. 3 and 4 are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 1, reference numerals 1a and 1b denote holding hooks, and hook portions 4a and 4b that engage with the movable hooks 3a and 3b of the balk plate 2 and the hook portions 4a and 4b are set at the operating position and the non-operating position. It is composed of movable parts 5a and 5b which rotate to their operating positions, and these are rotatably provided on fixed shafts 6a and 6b, respectively. The movable parts 5a, 5b are provided with springs 8a, 8b between them and the fixed parts 7a, 7b, and the hook parts 4a, 4b are always in contact with the stopper pieces 9a, 9b of the movable parts 5a, 5b to be integrally formed. It is designed to rotate. The movable parts 5a, 5b are provided with slide parts 10a, 10b, and the slide parts 10a, 10b are provided on the fixed shaft 11 so that the action levers 12a, 12b have engaging grooves 13a, 13b for engaging with them. It is slidably engaged with 14a and 14b.

The action levers 12 a and 12 b have driven lever portions 16 a and 16 b that face the engagement lever portions 13 a and 13 b and are rotated by the auxiliary cam 15, and also have suction levers that extend rearward from the fixed shaft 11. It has parts 17a and 17b.

The attraction lever portions 17a, 17b are provided on the action levers 12a, 12b so that the attraction sides of the electromagnetic solenoids 18a, 18b face the holding hooks 1a, 1b, and face the attraction lever portions 17a, 17b. Electromagnetic solenoids 18a and 18b for attracting and holding the attraction lever portions 17a and 17b by magnetic force to attract and hold them and to hold the action levers 12a and 12b in the operating position are provided. That is, the electromagnetic solenoids 18a, 18b are arranged on the holding hooks 1a, 1b side of the suction lever portions 17a, 17b, the suction portions 19a, 19b are directed rearward, and the suction lever portions 17a, 17b are arranged. The electromagnetic solenoids 18a and 18b are provided on the action levers 12a and 12b so as not to interfere with the action levers 12a and 12b.

The electromagnetic solenoids 18a, 18b are formed by attaching coils 21a, 21b to cores 20a, 20b.

The attraction portions 19a and 19b that attract and hold the attraction lever portions 17a and 17b of the electromagnetic solenoids 18a and 18b can be seen through a peep window (not shown) provided at the rear of the main body 22 of the dobby machine. There is.

Next, the operation of this embodiment will be described.

As described above, the rotation of the auxiliary cam 15 causes the driven lever portions 16a, 16b of the action levers 12a, 12b to alternately swing, and at the same time, the holding hooks 1a, 1b via the engaging lever portions 13a, 13b. Is alternately rotated to an operating position where it engages with the movable hooks 3a and 3b of the poke plate 2 and a non-operating position where it becomes a non-engaged state. Further, the suction lever portions 17a and 17b of the action levers 12a and 12b also reciprocate between the working and non-working positions. When the action levers 12a and 12b rotate near the operating position, for example, when the upper action lever 12a rotates from the non-acting position of the solid line position to the operating position of the chain double-dashed line position as shown in FIG. When the electromagnetic solenoids 18a, 18b are excited, the electromagnetic solenoids 18a, 18b attract the attraction lever portion 17a by a magnetic force to attract and hold it. As a result, the holding hooks 1a and 1b are held in the working position, engage with the movable hooks 3a and 3b of the poke plate 2, and raise (or lower) the above-mentioned hold frame.

Since the electromagnetic solenoids 18a, 18b are arranged on the holding hooks 1a, 1b side of the suction lever portions 17a, 17b, the suction portions 19a, 19b are directed rearward. Therefore, since there is no obstacle behind it, if a viewing window is provided at the rear of the main body 22 of the dobby machine, the suction portions 19a, 19b of the upper and lower electromagnetic solenoids 18a, 18b can be visually observed. be able to. Therefore, it is possible to confirm the suction state of the electromagnetic solenoids 18a and 18b.

[0031]

[Effect of the device]

 In short, according to the present invention, since the electromagnetic solenoid is arranged on the holding hook side so that the attracting portion can be visually observed, it is possible to visually observe the attracting portion of the electromagnetic solenoid from the rear.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing details of a part of FIG.

FIG. 3 is a schematic view showing an example of a device of the prior application.

FIG. 4 is a diagram showing details of a part of FIG. 3;

[Explanation of symbols]

 1a, 1b Holding hook 12a, 12b Action lever 15 Auxiliary cam 17a, 17b Adsorption lever part 18a, 18b Electromagnetic solenoid 19a, 19b Adsorption part

Claims (1)

[Claims for utility model registration] [Claim 1] A holding hook that is held in a working / non-working position to determine whether to lift or lower the heald frame, and an action for rotating the holding hook to the working / non-working position. A lever and an auxiliary cam that rotates the action lever,
In a dobby machine equipped with an electromagnetic solenoid that magnetically attracts and holds the attraction lever portion of the action lever, an electromagnetic solenoid that magnetically attracts and holds the attraction lever portion of the action lever is arranged on the holding hook side so that the attraction portion can be viewed. A dobby machine characterized by being installed.