JPH0621389B2 - Doby machine control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a dobby machine, and more specifically, a command is given by a solenoid that can be selectively excited to open an opening knife. The present invention relates to a control device for a double-acting dobby machine in which hooks are controlled to perform an opening operation.

<Prior Art> Conventionally, punch cards, peg cards, etc. have been used as means for giving commands to a dobby machine. Become.

b) A special mechanism such as a card guide is required.

Since there are problems such as the above, it has been attempted to solve the above problems by using a solenoid (Japanese Patent Laid-Open No. Sho 5).
8-4842 gazette).

However, the size of the solenoid that can be used is naturally restricted by the size of the dobby machine itself, and the hook is controlled by the suction force or repulsive force of the normal solenoid, and it swings according to the loom. In the case of the type that is attached to the knife, the load on the solenoid is too large, and the durability of the solenoid has a problem.

To solve this problem, for example, a separate control mechanism is provided in addition to the solenoid to reduce the load on the solenoid, which is disclosed in Japanese Patent Publication No. 59-8052 (see FIG. 3). ). In the figure, 213 is a support plate,
211 is a solenoid, 227 is an armature, 225 is a reciprocating member, 200 is a cam, 205 is a control mechanism, 215
And 216 are springs.

<Problems to be Solved by the Invention> The above invention achieves the object thereof, but since the separate control mechanism 205, the cam 200 and the like are provided, the dobby machine itself becomes complicated and the manufacturing cost increases. However, there were problems such as difficulty in maintenance.

An object of the present invention is to solve the above problems and provide a control device for a dobby machine that has a simple mechanism and reduces the load on the solenoid.

<Means for Solving Problems> The present invention has been made to achieve the above object, and a command is given by a solenoid that can be selectively excited to cause an opening hook to be opened to an opening knife. In a double-acting dobby machine that performs a controlled opening operation, a holding member and a support groove with the following configuration are provided below the solenoid, and (a) the holding member engages with an engagement hook formed on the support groove. A two-armed lever with a hook arm that can hold the support rod in the upper position and a contact piece made of a magnetic material that is interposed between the upper end of the support rod and the solenoid. Is pivotally supported.

(b) The support wings are provided with engaging hooks that engage with the hook arms of the holding member, and are connected to the opening hook control means.When the support wings reach the upper position, the support hooks are The holding arm is in the engagement position with the hook arm. At this time, when the solenoid is excited, the hook arm engages with the engagement hook, and the support wings are held in the upper position, thereby controlling the opening hook. It is a control device for a dobby machine, which is configured as described above.

<Embodiment> An embodiment of the control device for a dobby machine according to the present invention will be described with reference to the drawings (FIGS. 1 and 2).

FIG. 1 is a schematic mechanism diagram of the present embodiment, and FIG. 2 is a timing graph showing the operation of each component constituting the control device and the heald frame. In addition, "a" is attached to a member for controlling the upper opening hook 27a, and "b" is attached to a member for controlling the lower opening hook 27b. The hook 27b also has an opening hook 2
7b.

The configuration of the control device 1 of this embodiment will be described below. Since the control device 1 is applied to a double-acting dobby machine, a mechanism for controlling the opening hooks 27a and the opening hooks 27b is independently arranged. In this specification, "a" and "b" are omitted for the same member of both mechanisms, and when the solenoid 11 is used, for example, both the solenoid 11a and the solenoid 11b are represented.

The configuration of the control device 1 will be described separately for each part. A two-arm lever-shaped holding member 5, which is pivotally supported by the fixed shaft 3 and in which the contact piece 7 made of a magnetic material and the hook arm 9 form an acute angle, The contact piece 7 is disposed below the support plate 13 on which the solenoid 11 is disposed so as to be substantially horizontal. A spring 15 is interposed between the holding member 5 and the support member 13, and the holding member 5 is rotated so that the abutting piece 7 is rotated about the fixed shaft 3 in the direction away from the abutment with the solenoid 11. I am biased. Therefore, when the solenoid 11 is not excited, like the holding member 5b in FIG. 1, the hook arm 9 is apart from the support wings 17 and is in a position where it does not engage with the engaging hook 19. On the other hand, when the solenoid 11 is shown as an example and the hook arm 9 and the engagement hook 19 are engaged (see the holding member 5a in FIG. 1), the support blade 17 is lifted by the lifting knife 29 again. , Solenoid 11
Even when the excitation is released, the engagement between the two does not disengage, and the support rod 17 is held in the upper position. Then, the push-up hook 21 is placed at a position where it can come into contact with the push-up knife 29 that moves up and down in synchronism with the swing of the opening knives 25a and 25b of the dobby machine, and the engagement hook at a position where it can be engaged with the hook arm 9. The support rods 17 provided with the respective 19 are provided by a guide member (not shown) so as to be movable in the vertical direction in the drawing. The engaging hook 19 is provided with an inclined engaging surface with the hook arm 9 so as not to be disengaged by the urging force of the spring 15 when engaging with the hook arm 9. Then, the lifting member 2 of the opening hook 27a having a through hole 24a through which the opening hook 27a penetrates is formed at the lower end of one of the support wings 17a.
3b is provided, and the opening hook 27a is passed through the lower end of the other support groove 17b, and the opening hook 27a and the through hole 24b for preventing the lower side from contacting the opening hook 27a even when being hung up are passed through the opening hook 27b. Through hole 24c
The lifting member 23b of the opening hook 27b having the opening is provided.

Both opening hooks 27a and 27b are connected to the heddle frame via a normal balance pestle 28, a jack lever 31, a connecting pestle 33 and the like. Further, the opening knife 25 that swings in synchronization with the vertical movement of the lifting knife 29 rolls when it swings to the engaging position (the period of the horizontal line in the timing graph diagram), and during the rolling of the opening knife 25. Then, the lifting and lowering of the push-up knife 29 and the on / off of the solenoid 11 are completed. The opening hooks 27 are respectively the lifting members 2
The opening knife 25 is engageable with the opening hook 27 when it is not lifted by means of 3.

Next, the operation of each component constituting the control device 1 of the present embodiment will be described with reference to FIG. 2 together with the opening movement of the heald frame.

First, when the state of the control device 1 in FIG.
When it is ゜. In the state of FIG. 1, the engaging hook 19a of the support rod 17a and the hook arm of the holding member 5a are produced by the concert of the lifting knife 29a and the solenoid 11a before appearing in FIG. 2 (for example, at -180 °). 9a and the support rod 17a is held in the upper position. At this time, the opening hook 27a is lifted up and is not engaged with the opening knife 25a in the separated position, so that the jack lever 31 is not operated and the heddle frame is not opened.

On the other hand, the support wings 17b are connected to the hook arm 9
b and the lifting knife 29b are not acted upon, the opening hook 27b is not lifted by the lifting member 23b, and the opening hook 25b is in the engaging position.
It has a positional relationship with which it can be engaged.

Next, it is assumed that the control device 1 operates as shown in FIG.

By engaging the hook arm 9a with the engaging hook 19a,
The opening hook 27a is in a suspended state as shown in FIG.

On the other hand, immediately before the operation of the dobby machine 0 °, the opening knife 25b
Is in the engagement position with the opening hook 27b, and
Start rolling. After that, when the push-up knife 29b is raised and engaged with the push-up hook 21b to push up the support rod 17b, the holding member 5b moves to the contact piece 7b.
Is pushed from below by the upper end of the support rod 17b and rotated counterclockwise. However, the solenoid 11b
Is not excited (shown as OFF in FIG. 2), the contact piece 7 is not attracted to the solenoid 11b, and the holding member 5b is rotated clockwise by the urging force of the spring 15b. The engagement hook 19b and the hook arm 9b cannot engage with each other. Therefore, the support blade 17b descends simultaneously with the lifting knife 29b. Opening hook 27
b engages the opening knife 25b in the engagement position (rolling of the opening knife 25b ends), and the opening knife 25b
Rocks to the separated position, the jack lever 31 is pulled, and the heddle frame also opens.

--When the dobby machine is operating 180 DEG --- Immediately before the operation of the dobby machine 180 DEG, the opening knife 25a is in the engagement position with the opening hook 27b and starts rolling. After that, the push-up knife 29a rises and engages with the push-up hook 21a to push up the support rod 17a, so that the engagement hook 19a and the hook arm 9a are disengaged. At this time, since the solenoid 11a is not excited, the holding member 5a is rotated counterclockwise by the spring 15a, and the hook arm 9 is rotated.
Since a cannot engage with the engaging hook 19a, the support blade 17a descends together with the lifting knife 29a. Therefore, the opening hook 27a engages with the opening knife 25a at the engaging position (rolling of the opening knife 25 ends), and the opening knife 25a swings to the separated position and maintains the opening of the heald frame. Become.

On the other hand, the opening hook 27b is in a state of being engaged with the opening knife 25b, and is in the separated position together with the opening knife 25b. At this time, the solenoid 11b and the lifting knife 29
b does not work.

--When the operation of the dobby machine is 360 DEG --- The opening hook 27a is in the state of being engaged with the opening knife 25a, and is in the separated position together with the opening knife 25a. At this time, the solenoid 11a and the lifting knife 29a do not operate.

On the other hand, immediately before the dobby machine is operated 360 °, the opening knife 25b is in the engagement position with the opening hook 27b and is rolling. After that, the push-up knife 29b rises, engages with the push-up hook 21b, and pushes up the support rod 17b to lift the opening hook 27b. Therefore, the opening hook 27b and the opening knife 25b which are in the engaged state even when the operation of the dobby machine is 0 ° are disengaged. And support 17
The upper end portion of b presses the contact piece 7b of the holding member 5b from below to rotate the holding member 5b counterclockwise, and the support piece 7b and the solenoid 11b sandwich the contact piece 7b (third part). "A" state). At this time, since the solenoid 11b is excited (turned on), the contact piece 7b of the holding member 5b is attracted to the solenoid 11b, and the upper surface of the contact piece 7b of the holding member 5b is placed on the solenoid 11b.
The state of contact with b is maintained even after the support rod 17b is lowered.

The engaging hook 19b of the support blade 17b slightly lowered together with the lifting knife 29b and the hook arm 9b are engaged with each other, and the support blade 17b is kept in the upper position even after the excitation of the solenoid 11b is released. Becomes Therefore, the opening hook 27b is lifted by the lifting member 23b and cannot engage with the opening knife 25b.

Therefore, when the operation of the dobby machine exceeds 360 °, the heald frame is closed with the aid of the opening knife 25a.

Second Embodiment (FIGS. 3 and 4) FIG. 3 is a view showing a schematic mechanism of the control device of the present embodiment, and the same members as those of the control device of the first embodiment are designated by the same reference numerals and described. Is omitted.

The control device 101 of the present embodiment is the control device 1 of the first embodiment.
In, the support rod 17 and the lifting member 23
The rocking lever 103 is disposed between and. A support rod 17 is pivotally attached to one end of the rocking lever 103, and a connecting rod 109 connected to the lifting member 23 is pivotally attached to the other end. In addition, 107 is a spring,
Normally, the end of the swing lever 103, to which the connecting rod 109 is pivotally attached, is urged upward so that the opening hook 27 is lifted and is not engaged with the opening knife.

In the control device 101 of this embodiment, when the solenoid 11 is excited, the support rod 17 is held in the upper position in the same manner as in the first embodiment, but the swing lever 103 swings counterclockwise. Therefore, the opening hook 27 is lowered to a position where it can be engaged with the opening knife 25.

Next, the operation of each component constituting the control device 101 of the present embodiment will be described with reference to FIG. 4 together with the opening movement of the heald frame. In addition, the lifting knife 29, the support blade 1
Since the operations of 7, the holding member 5, and the solenoid 11 are the same as those of the first embodiment, detailed description thereof will be omitted.

--When the dobby machine is operating at 0 DEG (Fig. 3)-just before 0 DEG, the opening knife 25a is in the engagement position with the opening hook 27a and rolls. afterwards,
Since the push-up knife 29a rises and engages the push-up hook 21a to push up the support rods 17a, the swing lever 103a swings counterclockwise and the spring 107a.
Lower the connecting rod pivot end against. Therefore, the opening hook 27a is not lifted by the lifting member 23a but engages with the opening knife 25a (opening knife 25a.
Rolling ends).

When the control device 101 is operated as shown in FIG. 4, after the operation of the dobby machine has passed a little from 0 °, the support knife 17a is lowered as the push-up knife 29a is lowered.
Also falls. However, since the solenoid 11a attracts the contact piece 7a, the holding member 5a is maintained in the state shown in FIG. Therefore, the engaging hook 19a and the hook arm 9a
Are engaged with each other, and even after the excitation of the solenoid 11a is turned off, the engagement between the engagement hook 19a and the hook arm 9a is not disengaged (the state is "a" in FIG. 1). Therefore, the support blade 17a is held at the upper position, the engagement state between the opening hook 27a and the opening knife 25a is maintained, and the heddle frame opens as the opening knife 25a swings to the separated position. Becomes

On the other hand, since the opening hook 27b is suspended by the spring 107b and is not engaged with the opening knife 25b in the separated position, the jack lever 31 does not operate,
Therefore, the heddle frame is not open either.

--When the operation of the dobby machine is 180 DEG --- The opening hook 27a is engaged with the opening knife 25a and is in the separated position together with the opening knife 25a. At this time, the solenoid 11a and the lifting knife 29a do not operate.

On the other hand, immediately before the dobby machine is operated 180 °, the opening knife 25b is in the engagement position with the opening hook 27b and starts rolling. After that, the lifting knife 29b
Rises, and in concert with the solenoid 11b, the engaging hooks 19 and the hook arms 9b are brought into the engaged state in the same manner as "a" in the case of 0 °, and the support blades 17b are held in the upper position. Therefore, the swing lever 103b swings counterclockwise, the opening hook 27b descends, and engages with the opening knife 25b (rolling of the opening knife 25b ends). Then, the opening of the heddle frame is continued.

--When the dobby machine is operated at 360 DEG --- Just before the dobby machine is operated at 360 DEG, the opening knife 25a is opened.
Has reached the engagement position with the opening hook 25a and is rolling. After that, the lifting knife 29a rises,
Supporting rod 1 is engaged with push-up hook 21a.
Since 7a is pushed up, the engagement hook 19a and the hook arm 9a are disengaged. At this time, since the solenoid 11a is not excited, the holding member 5a is rotated counterclockwise by the biasing force of the spring 15a. Therefore, the support blade 17a is pushed by the lifting knife 29a.
When descending together, the engagement hook 19a and the hook arm 9a cannot engage with each other. Therefore, the swinging lever 103a swings clockwise by the upward biasing force of the spring 107a to lift the opening hook 27a to a position where it cannot engage with the opening knife 25a.

On the other hand, the opening hook 27b is in a state of being engaged with the opening knife 25b, and is in the separated position together with the opening knife 25b.

Therefore, when the operation of the dobby machine exceeds 360 °, the heald frame is closed as the opening knife 25b swings.

In each of the above embodiments, the excitation of the solenoid 11 is turned on,
To switch off, match the fabric and when on,
It is controlled by an ordinary electronic control circuit so that it is in an excited state at least when the operation of the lifting knife 29 is completed.

Further, the spring 15 may not be arranged between the holding member 5 and the support plate 13, but may be installed between other portions and the holding member 5.
The strength of the spring 15 may be such that the contact piece 7 of the holding member 5 can be rotated away from the solenoid 11 when the solenoid 11 is not excited.

<Effects of the Invention> As described above, in the control device of the present invention, the contact arm of the holding member is attracted to the solenoid so that the hook arm and the engaging hook of the support rod are engaged with each other to open the opening. It controls hooks. Yotsutte
Not only is the load applied to the solenoid reduced,
Since the holding member has a simple structure in which the abutment piece and the hook arm are two-arm levers, there are effects such as a reduction in the manufacturing cost of the holding member, an improvement in the assembly of the entire control device, and an easy maintenance. is there.

[Brief description of drawings]

1 to 4 show an embodiment of the control device of the present invention, FIG. 1 is a schematic mechanism diagram showing the configuration of the control device 1 of the first embodiment, and FIG. 2 is the movement of each component and heald frame. The timing graph shown in FIG. 3, FIG. 3 is a schematic mechanism diagram showing the configuration of the control device 101 of the second embodiment, FIG. 4 is a timing graph showing the movement of each component and the heald frame, and FIG. 5 is the control device of the conventional example. 2 is a schematic mechanism diagram showing the configuration of FIG. 1, 101 ... Control device, 3 ... Fixed shaft, 5 (a, b) ... Holding member, 7 (a, b) ... Contact piece, 9 (a, b) ... Hook arm, 11 (a , B) ... Solenoid, 13 ... Support plate, 15 (a, b) ... Spring, 17 (a, b) ... Supporting groove, 19 (a, b) ... Engagement hook, 21 (a , B) ... Lifting hook, 23 (a, b) ... Lifting member, 24 (a, b, c) ... Through hole, 25 (a, b) ... Opening knife, 27 (a, b) …… Opening hook, 29 (a, b) …… Lifting knife,

Claims (1)

[Claims] 1. A double-acting dobby machine in which a command is given by a solenoid which can be selectively excited to control an opening hook with respect to an opening knife to perform an opening operation. (A) the holding member engages with an engaging hook formed on the support rod, and a hook arm capable of holding the support rod in an upper position; and the support rod. A two-arm lever provided with an abutment piece made of a magnetic material interposed between the upper end of the stud and the solenoid, and is rotatably supported by a fixed shaft. (B) The support rod is provided with the holding member. An engaging hook that engages with a hook arm of the member is provided, and the engaging hook is connected to the control means of the opening hook. When the support blade reaches the upper position, the engaging hook is engaged. The hook arm of the holding member of the hook is in an engaging position, and when the solenoid is excited at this time, the hook arm and the engaging hook engage with each other, and the support blade is held in the upper position. A control device for a dobby machine, which is configured to control the opening hook.