JPH0814051B2 - Dobby machine controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Field of Application> The present invention comprises a selection lever disposed adjacent to a knife portion or a hook portion of a dobby machine, and a swinging means of the selection lever. Control of a passive double-acting dobby machine having a pressing portion, and by swinging the selection lever by the swinging means, one of the knife portion and the hook portion is pushed by the pressing portion to a position where it can be engaged with the other The present invention relates to improvement of a device (hereinafter abbreviated as “control device”).

In this specification, the knife portion means a pair of members that are rocked to pull the heddle frame and engage with the hook portion.

Further, the hook part means one that engages with the knife part.

<Prior Art> An example of a conventional control device 1 is shown in FIG. The control device 1 comprises a pair of selection levers 3, 13 and a swinging means 20 for the selection levers 3, 13 and a locking mechanism 30.

The selection levers 3 and 13 include bases 4 and 14, pressing portions 5 and 15, and engaged arms 6 and 16. Bases 4 and 14 are spindles 7 and 17, respectively.
Be pivoted to. Then, the pressing portion 5, which is in the shape of a dogleg to the left in the figure,
15 is formed, and the engaged arms 6 and 16 are formed on the right side.
A compression coil spring 10 is installed between the engaged arms 6 and 16 to move the selection lever 3 clockwise and the selection lever 13
Is urged in the counterclockwise direction. In addition, reference numerals 8 and 18 in the figure
Is a stopper.

The swinging means 20 comprises a pusher lever 21 and a cam device 23 for swinging the pusher lever 21. A push head 25 is provided at the free end of the pusher lever 21.

The lock mechanism 30 includes an L-shaped lock lever 31 and a solenoid (electromagnetic actuator) 33. Lock lever 31
Is pivotally attached to a support shaft 35 and is biased counterclockwise by a tension coil spring 37. Further, at a portion facing the selection levers 3 and 13, an engagement step portion 39 capable of engaging with the engaged arms 6 and 16 is provided.
Are formed.

In the figure, reference numerals 2 and 12 are knife portions, reference numerals 9 and 19 are hook portions, and reference numeral 26 is a jack lever.

The pusher lever 21 presses the selection levers 3 and 13 in accordance with the shape of the cam 23 (the concave portion and the convex portion are formed at positions shifted by 180 degrees) to swing them. This allows
The knife portions 2 and 12 are pressed by the pressing portions 5 and 15 to a position where they can be engaged with the hook portions 9 and 19. The pressing time of the pusher lever 21 is determined by the shape of the cam 23, and is instantaneous in the example shown in the figure. Then, the engagement between the knife portions 2 and 12 and the hook portions 9 and 19,
It is controlled by the lock mechanism 30. That is, the knife part 2,12
When the hooks 9 and 19 are not engaged with the solenoid,
At 33, the lock lever 31 is rotated in the clockwise direction, and the engagement step portion 39 is engaged with the engaged arms 6 and 16 of the selection levers 3 and 13 which are swung by the pusher lever 21. Then, the urging force of the spring 10 maintains the engagement state between the two, and the selection levers 3 and 13 are pressed by the pressing portions 5 and 15 of the knife portion 2,
It is fixed in the state of pressing 12. This allows the knife section
The hook portions 9 and 19 cannot be engaged with the hook portions 2 and 12.

On the other hand, when engaging the hook portions 2 and 12 with the knife portions 9 and 19, the engagement step portion 39 of the lock lever 31 is connected to the selection levers 3 and 13.
The engaged arms 6 and 16 are prevented from engaging (the solenoid 33 is not operated). Then, pusher lever 21
As a result, the selection levers 3, 13 that have once swung to engage the knife portions 2, 12 with the hook portions 9, 19 are returned to their original positions by the spring 10. Therefore, the knife portion 212 and the hook portions 9 and 19 can be engaged with each other (see Japanese Patent Laid-Open No. 58-70732).

Further, as a technique related to the present invention, Japanese Patent Laid-Open No. 59-19
See 9833, 61-225343, etc.

<Problems to be Solved by the Invention> However, the control device 1 having the above configuration has the following problems.

That is, the elongated lock lever 31 is required to directly control the operation of the selection levers 3 and 13. Since the lock lever 31 has a large rotational moment, the solenoid 33
A large output is required. Then, the solenoid 33 becomes large in size and cannot fit in the dobby machine in which a plurality of knife parts and hook parts are arranged in parallel.

Further, when a large output is required for the solenoid 33, its durability is apt to deteriorate and maintenance becomes troublesome.

<Means for Solving the Problems> As a result of intensive studies to solve the above problems, the present inventor has come up with a control device for a dobby machine having the following configuration.

That is, it comprises a selection lever adjacent to each of the pair of knife parts or the pair of hook parts of the dobby machine, and a swinging means of the selection lever, and the selection lever comprises a pressing part and is pivoted to the spindle. In a control device for a passive double-acting dobby machine, the pressing member pushes one of the knife portion and the hook portion to a position at which the pressing member is engaged with the other by swinging the selection lever by the swinging means. A strip plate having two engaged parts is connected to each selection lever, and a pulling knife, an engaging member, and an electromagnetic actuator having the following constituent elements are arranged near each strip plate. The control device for the dobby machine, wherein the pulling knife vibrates in synchronization with the knife portion, engages with one engaged portion of the strip, and engages with the other engaged portion. The strip plate is vibrated so that it is close to and separated from the mating member. When the other engaged portion approaches the engaging member, the actuator tilts the strip and engages the engaged portion with the engaging member to temporarily stop the vibration of the strip. It is a thing.

Further, in the control device having the above configuration, a connecting member may be provided to the selection lever, a substantially central portion of the two-arm lever may be pivotally attached thereto, and the strip plate may be connected to both ends of the two-arm lever. .

<Examples> Hereinafter, the present invention will be described in more detail with reference to Examples.

First Embodiment A control device 40 of the first embodiment includes a pair of selection levers 41 and 51,
It consists of rocking means 60.

Each selection lever 41, 51 is composed of a base portion 43, 53 and a pressing portion 45, 55. The bases 43 and 53 are pivotally attached to the support shafts 42 and 52, and the pressing portions 45 and 55 are made of leaf springs and fixed to the bases 43 and 53.

In the figure, reference numeral 47 is a tension coil spring, and reference numerals 48 and 58 are stoppers. Further, connecting arms 49 and 59 as connecting members are bulged from the bases 43 and 53.

The swinging means 60 comprises two-arm levers 62, 72, strips a, b, c, d, engaging members 64, 74, electromagnets 65, 75 and pulling knives A, B, C, D.

The two arms levers 62 and 72 have connection arms 49 and 59 at the substantially center thereof.
Is pivotally attached to the tip of. And each two-armed lever 62, 72
Spring steel strips a, b, c, d are connected to both ends of the strip. The strips a, b, c, d are linear as shown in FIG. 3 in the unloaded state. These strips a, b, c, d,
First engaged portions 67a, 67b, 77c, 77d and second engaged portions 68a, 68b, 7
8c and 78d are provided. The first engaged parts 67a, 67b are fixed to the facing surfaces of the strips a, b so as to face each other. Similarly, the first engaged portions 77c and 77d are fixed to the facing surfaces of the strips c and d so as to face each other. The second engaged portions 68a, 68b, 78c, 78d are, as shown in FIGS.
The peripheral edges of the through holes formed at the tips of b, c, and d are in charge.
Then, as shown in FIG. 2, when the strips a and b are inclined, the respective second engaged portions 68a and 68b can be engaged with the engaging member 64.

The pulling knives A, B, C, D are oscillating in the left-right direction in the figure in synchronization with the swing of the knife parts 101, 103.

The electromagnets 65, 75 are arranged between the facing surfaces of the strip plates a, b, c, d, respectively. The electromagnets 65, 75 are actuators for inclining the strips a, b, c, d, and are controlled by the CPU based on a memory that stores pattern information corresponding to the woven pattern of the woven cloth.

The electromagnets 65 and 75 can also be incorporated into the engagement members 64 and 74 described later. Further, electromagnets can be individually arranged for the strips a, b, c, d.

The engaging members 64 and 74 are arranged on the right side of the electromagnets 65 and 75. Each engaging member 64, 74 has a second engaged portion 68.
Claws 69a, 69b, 79c, 7 that engage with a, 68b, 78c, 78d, respectively
9d is protruding.

Reference numerals 61 and 71 in the figure are guide members. The guide members 61, 71, the engaging members 64, 74 and the electromagnets 65, 75 are held by a retainer (not shown).

Explaining the knife parts 101, 103, etc., the knife parts 101, 103 are pivotally attached to both ends of the swing rod 105. In the unloaded state, the tension coil springs 102 and 104 do not engage the hook portion 109 like the knife portion 103 shown by the solid line. The swing rod 105 swings in synchronization with the timing of the loom. Reference numerals 107 and 109 are hook portions, and are pivotally attached to both ends of the connecting rod 111. A jack lever 113 is connected to the substantially center of the connecting rod 111.

Next, the operation of the control device 40 of the embodiment will be described with reference to the timing chart shown in FIG.

5 and 6 are schematic views showing the states of the control device 40 at 0 ° and 180 ° of the chart.

It is assumed that the knife portions 101, 103 and the hook portions 107, 109 are not engaged with each other before 0 degree. Then, since the electromagnet 65 is turned on immediately before 0 degree,
The strips a and b are adsorbed and inclined as shown in FIG.
The strip a located at the right dead center with the pulling knife A
The second engaged portion 68a is engaged with the pawl portion 69a of the engaging member 64. Even if the electromagnet 65 is switched from ON to OFF, this engagement causes the pulling knives A and B to move next due to the bias of the tension coil spring 47, and the pulling knife A causes the first engaged member 6 to move.
It is maintained until it engages with 7a again.

(0 degree state) At this time, the pulling knife A moves to the left side even though the electromagnet 65 is on, so that the pulling knife A moves to the first position.
It is separated from the engaged member 67a. On the other hand, the strip b that has reached the left dead center before 0 degree moves to the right as the pulling knife B moves to the right. Therefore, the two-arm lever 62 is
It rotates counterclockwise around the upper end (the portion where the strip plate a is connected). As a result, the selection lever 41 rotates clockwise. Therefore, the knife portion 101 pushed by the selection lever 41 rotates clockwise and engages with the hook portion 107. Then, the hook portion 107 moves to the right along with the rightward movement of the knife portion 101, so that the heald frame (not shown) is pulled through the jack lever 113.

The electromagnet 65 is turned off at P degrees. Then, the strip plate a tries to return to the straight state by its own spring elastic force, but the fixing of the strip plate a by the engaging member 64 is continuously maintained by the tension force of the tension coil spring 47. Therefore, the pressing of the knife portion 101 is held by the selection lever 41. As a result, the engagement between the knife portion 101 and the hook portion 107 will not be disengaged.

(180 degree state) At this time, since the electromagnet 65 is off, the tension of the tension coil spring 47 holds the engagement of the second engaged member 68a of the strip a with the engaging member 64. However, the strip b is linear and the second engaged member 68b thereof is not engaged with the engaging member 64. Therefore, the first engaged member 67a does not engage with the pulling knife A, and the first engaged member 67b engages with each pulling knife B. Since the lifting knife B is at the right dead center and the lifting knife A is at the left dead center, the two-arm lever 62 is
Is most counterclockwise tilted. In this state, the selection lever 41 does not press the knife portion 101.

On the other hand, immediately before 180 degrees, since the electromagnet 75 is turned on, the strips c and d are attracted and inclined as shown in FIG. The second engaged portion 78c of the strip c located at the right dead center with the pulling knife C is engaged with the pawl 79c of the engaging member 74. At this time, the pulling knife C moves to the left side even though the electromagnet 75 is turned on, so that the pulling knife C is separated from the first engaged member 77c. On the other hand, the strip d that reached the left dead center before 180 degrees d
Moves to the right as the lifting knife D moves to the right. Therefore, the two-arm lever 72 rotates counterclockwise around the upper end (the portion where the strip plate c is connected). As a result, the selection lever 51 rotates counterclockwise.
Therefore, the knife portion 103 pushed by the selection lever 51 rotates counterclockwise and engages with the hook portion 109.

The electromagnets 65 and 75 can be turned on and off as shown by the chain double-dashed line in FIG.

Further, as shown in FIG. 7, the cycle of each of the pulling knives A, B, C, D can be made the same as the cycle of the knife parts 101, 103 (in the type of FIG. 4, the cycle of the pulling knives is that of the knife part). That's twice as much as that.).

According to this, each of the lifting knives A, B, C, D and the knife section 10
The interlocking mechanism with 1,103 becomes simple.

Hereinafter, with reference to the drawings (eighth to twelfth to twelve) regarding a modified embodiment of this embodiment,
It will be described with reference to FIG.

8 is a perspective view showing the positional relationship between the strip plate d, the engaging member 74 and the electromagnet 75 in FIG.

FIG. 9 shows a solenoid 75s in place of the electromagnet 75 in the structure shown in FIG. As a result, the strip d
Can be formed of a non-magnetic material (plastic or the like).

FIG. 10 shows a pair of solenoids 75s arranged at positions facing each other with the strip plate d interposed therebetween. According to this,
Since the engagement between the second engaged portion 78d and the pawl portion 79d is controlled by the pair of solenoids 75a, the strip plate d does not require spring elasticity. Of course, the solenoid 75a may be the electromagnet 75 (see FIG. 11), and in this case, it is preferable to provide the hinge 73 in the middle of the strip plate d. Further, a pair of electromagnetic actuators arranged via the strip plate d are respectively connected to the electromagnets 75.
And solenoid 75s can also be.

FIG. 12 is characterized in that the band plate d is provided with a protrusion 78e (second engaged portion), and the engaging member 74 is provided with an engaging groove 79e.

FIG. 13 shows the controller 40 of the first embodiment applied to another type of dobby machine. This dobby machine has a knife part 10
1a, 103a and hooks 107a, 109a, and selection levers 41, 51
The hook portions 107a and 109a are operated by the.

Further, FIG. 14 also shows that the control device 40 of the first embodiment is applied to another type of dobby machine. This dobby machine has knife parts 101b, 103b and hook parts 107b, 109b, and a selection lever.
The hook portions 107b and 109b are operated by 41 and 51. The knife portions 101b and 103b are respectively provided with swing shafts 113 and 115.
And engaging arms 117 and 119.

(Second Embodiment) FIG. 15 shows a control device 80 of this embodiment. The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be partially omitted.

This control device 80 includes each selection lever 41, 51 and two-arm lever 6
The connecting members 81 and 91 that connect the two 72 are characterized.

The connecting members 81, 91 include connecting arms 82, 92 and connecting rods 83, 9
3, equipped with bell crank levers 85, 95.

The connecting arms 82 and 92 are extended from the bases 43 and 53 of the selection levers 41 and 51 in the directions in which they approach each other. And, one end of the connecting rods 83, 93 is pivotally attached to each tip. Bell crank levers 85,95 are pivotally attached to shafts 86,96. The other ends of the connecting rods 83, 93 are connected to the arm protruding downward. The arms of the bell crank levers 85 and 95 protruding to the left side are pivotally attached to substantially the centers of the two-arm levers 62 and 72.

By doing this, each strip a, b, c, d, with respect to the floor surface,
Since it is in a substantially straight direction, gravity does not affect the inclination of each strip a, b, c, d.

From the standpoint of reducing the number of man-hours for assembling the device and maintaining it, it is preferable that the connecting rods 83, 93 are detachable between the connecting arms 82, 92 and the bell crank levers 85, 95.

(Third Embodiment; FIG. 16) The control device 90 of the third embodiment is the same as the control device 80 of the second embodiment.
2, a part of the swinging means 60 composed of the connecting arm 83 or the strips a, b, etc. is omitted (swinging means 60a), and the connecting rod 93
The connecting arms 82 and 92 of the selection levers 41 and 51 are pivotally attached.

(Fourth Embodiment; FIG. 17) The control device 120 of this embodiment is the control device 90 of the third embodiment.
Is a modified mode of each of the selection levers 41, 51, the connecting means 121,
It consists of a two-arm lever 125 and a swing means 60b. A bell crank lever 95 is interposed between the two-arm lever 123 and the strips c and d.

The connecting member 121 is composed of connecting arms 122 and 132 extending from the respective selection levers 41 and 51 and connecting rods 123 and 133. The two-arm lever 125 is a triangular plate material.

(Fifth Embodiment; FIG. 18) A control device 140 of this embodiment is composed of respective selection levers 41, 51, connecting arms 49, 59 and swinging means 141. In addition,
The same members as those described in the first embodiment are designated by the same reference numerals, and the description thereof will be partially omitted.

This control device 140 omits the two-arm lever in the control device 40 of the first embodiment, and directly connects the strips to the connecting arms 49 and 59.
It is a combination of a and b. According to the control device 140 having such a configuration, the number of parts is reduced as compared with that of the first embodiment. Therefore, the cost and size of the device can be reduced.

The timing chart of this controller 140 is shown in FIG.

(Sixth Embodiment; FIG. 20) FIG. 20 shows a controller 200 of another type of dobby machine.

The control device 200 includes foot lifters 203 and 213, connecting members 206 and 216, levers 202 and 212, and swinging means 220. The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be partially omitted.

Further, the dobby machine shown in FIG. 20 is a positive type. The controller 200 controls the engagement between the knife portions 241 and 243 and the hook portions 247 and 249. In the figure, reference numerals 251 and 253 are return knives, reference numeral 255 is a vertical lever, reference numeral 257 is a jack lever, reference numerals 259 and 261 are hook-stoppers, and reference numerals 263 and 265.
Is the stopper for the vertical lever 255.

The foot lifters 203 and 213 are attached to the hook portions 247 and 249, respectively. Rod-shaped connecting members 206 and 216 are connected to the upper edges of the foot lifters 203 and 213, respectively.
The upper end of 16 is pivotally attached to one end of levers 202,212. Each lever 202, 212 is pivotally attached at its center to a support shaft 207, 217. The strips a and b are connected to the other ends of the levers 202 and 212. An engaging member 225 having electromagnets 221 and 223 installed therein is arranged between the strips a and b. Reference numerals 227 and 229 in the figure denote claw portions, and reference numerals 231 and 233 denote tension coil springs.

The controller 200 having such a configuration is the controller 1 of the fifth embodiment.
Has the same effect as 40. That is, the strips a and b are the engagement members 225.
When engaged with, each foot lifter 203, 213 descends,
The hook portions 247 and 249 and the knife portions 241 and 243 cannot engage with each other. On the other hand, if the strips a and b do not engage the engaging member 225, the spring
The foot lifters 203, 213 are lifted by the urging force of 231, 233, and the hook portions 247, 249 and the knife portions 241, 243 are engaged with each other.

<Operation and Effect of the Invention> As described above, the control device of the present invention is provided with a selection lever disposed adjacent to each of the pair of knife portions or the pair of hook portions of the dobby machine, and the swinging means of the selection lever. The selection lever is provided with a pressing portion and is pivotally attached to the shaft support. By swinging the selection lever by the swinging means,
A control device for a depolarizing double-acting dobby machine, in which a pressing part presses one of a knife part and a hook part to a position where it can be engaged with the other, and each selection lever has two controlled parts. The strip plates are connected to each other, and a pulling knife, an engaging member, and an electromagnetic actuator having the following constitutional requirements are arranged in the vicinity of each strip plate. , Vibrates in synchronization with the knife portion, engages with one engaged portion of the strip plate, and vibrates the strip plate so that the other engaged portion comes close to and away from the engaging member, The electromagnetic actuator temporarily suspends the vibration of the strip by tilting the strip and engaging the engaged portion with the engaging member when the other engaged portion approaches the engaging member. It is a configuration that allows it.

Further, in the control device having the above configuration, the selection lever is provided with a connecting member, the approximately central portion of the two-arm lever is pivotally attached thereto, and the strip plate is connected to both ends of the two-arm lever.

According to the control device having such a configuration, the power required for the electromagnetic actuator is merely to incline the strip plate. Therefore, a large output is not required for the electromagnetic actuator. Therefore, the electromagnetic actuator can be miniaturized. This has the effect of increasing the design freedom of the Dobby machine.

Further, when the output required of the electromagnetic actuator becomes small, the durability thereof increases, and maintenance becomes less troublesome.

[Brief description of drawings]

FIG. 1 is a block diagram of the control device 40 of the first embodiment, FIGS. 2 and 3 are partially enlarged sectional views of FIG. 1, FIG. 4 is a timing graph of the control device 40, and FIGS. FIG. 7 is another timing graph of the control device 40, FIG. 8 is a perspective view showing the positional relationship between the strip plate d and the engaging member 74, and FIGS. Figures 13 and 14 are configuration diagrams showing an example in which the control device 40 is applied to another type of dobby machine, FIG. 15 is a configuration diagram of the control device 80 of the second embodiment, and FIG. 17 is a block diagram of the control device 90 of the fourth embodiment, FIG. 17 is a block diagram of the control device 100 of the fourth embodiment, FIG. 18 is a block diagram of the control device 140 of the fifth embodiment, and FIG. Timing graph, FIG. 20 is a block diagram of the control device 200 of the sixth embodiment, and FIG. 21 is a block diagram of the control device 1 of the conventional example. 1,40,80,100,140,200 …… Control means, 2,101,101a, 101b, 103,103a, 103b, 241,243 …… Knife part, 3,41,51 …… Selector lever, 4,14,43,53 …… Base part, 5,15 , 45,55 …… Pressing part, 7,17,42,52 …… Spindle, 9,19,107,107a, 107b, 109,109a, 109b, 247,249 …… Hook part, 20,60,60a, 60b …… Swing Means, 49,59 ... Linking member (linking arm), 81,91,121,206 ... Linking member, 62,72 ... Two-arm lever, 64,74 ... Engaging member, 65,75 ... Electromagnetic actuator (electromagnet) , 65a, 75a ... electromagnetic actuator (solenoid), 67a, 67b, 77c, 77d ... first engaged member, 68a, 68b, 78c, 78d, 78e ... second engaged member, a, b, c, d …… Strips, A, B, C, D …… Lifting knives.

Claims (2)

[Claims] 1. A selection lever, which is provided adjacent to each of a pair of knife portions or a pair of hook portions of a dobby machine, and a swinging means of the selection lever, wherein the selection lever includes a pressing portion. A depolarizing compound having a structure in which the pressing member presses one of the knife portion and the hook portion to a position at which the other can be engaged with the other by being pivotally attached to a support shaft and swinging the selection lever by the swinging means. A control device for a dynamic dobby machine, wherein each of the selection levers is connected to a strip plate having two engaged parts, and a pulling knife having the following constituents is provided in the vicinity of each strip plate. A control device for a dobby machine, in which an engagement member and an electromagnetic actuator are provided; the pulling knife vibrates in synchronization with the knife portion,
The electromagnetic actuator is configured to vibrate the strip plate so that the one engaged portion of the strip plate engages with the other engaged portion of the strip plate so as to approach and separate from the engagement member. When the other engaged portion approaches the engaging member, the strip plate is tilted to engage the other engaged portion with the engaging member, thereby vibrating the strip plate. Pause. 2. A selection lever provided adjacent to each of a pair of knife sections or a pair of hook sections of a dobby machine, and a swinging means of the selection lever, wherein the selection lever includes a pressing section. A depolarizing compound having a structure in which the pressing member presses one of the knife portion and the hook portion to a position at which the other can be engaged with the other by being pivotally attached to a support shaft and swinging the selection lever by the swinging means. A control device for a dynamic dobby machine, wherein a connecting member is arranged on each of the selection levers, and a substantially central portion of a two-arm lever is pivotally attached to the connecting member, and both ends of the two-arm lever are respectively attached. A strip plate having two engaged parts is connected, and a pulling knife, an engaging member, and an electromagnetic actuator having the following constitutional requirements are arranged in the vicinity of each strip plate. Control device for dobby machine; said lifting knife Vibrates in synchronization with the knife part,
The electromagnetic actuator is configured to vibrate the strip plate so that the one engaged portion of the strip plate engages with the other engaged portion of the strip plate so as to approach and separate from the engagement member. When the other engaged portion approaches the engaging member, the strip plate is tilted to engage the other engaged portion with the engaging member, thereby vibrating the strip plate. Pause.