JPH01132848A - Push-movement control apparatus - Google Patents

Abstract

PURPOSE: To make a push-movement control apparatus lightweight by connecting a shaft body providing a slant part in the center of a case and energizing to forward direction to a magnetic body supported so as to enable free advancing and retreating movement with a stretching member. CONSTITUTION: A shaft body 21 providing a slant part in the center of a case and energizing to forward direction is provided and when the shaft body 21 retreats, the slant part is guided by a guide pin 28 and moved to the upper direction and a vertical part is made to collide with a stopper pin 29 at the stage at which the tip is located on the same shaft as a transverse needle 12 to control movement to the rear side. A magnetic body 31 in rear end part of the shaft body 21 is charged into a space between supporting plates 33 and 33 and corresponds to an electromagnet 35 in the rear of the case 20 and the electromagnet 35 is connected to an electric signal-providing device 36.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention accommodates a shaft body in a housing that reciprocates with respect to a group of driven objects, and moves the shaft body toward the driven objects by excitation of an electromagnetic actuator. This relates to a control device that selectively pushes each driven body by moving the housing forward and moving the body between the active and non-active positions, and is mainly used to control the push of the horizontal hand of a Jacquard machine. It is also used in other fields such as punching holes in sheet bodies and selectively extruding and moving electronic components arranged in large numbers.

(Prior art and its problems) In the conventional Jacquard machine, a continuous pattern paper (perforated card) is hung around a rotating oscillating cylinder, and when the cylinder comes into contact with a group of horizontal needles, a hole is punched in the pattern paper. The horizontal needle corresponding to the part where no hole is provided is pushed and moved, and if a hole is drilled, the horizontal needle is not pushed through the hole to control the pushing movement of the horizontal needle. It is.

Recently, instead of the above-mentioned cylinder, a system has been developed in which a magnetic tape or the like is used as a command means, and the command electrically excites a solenoid-type electromagnetic actuator to control the pushing movement of the cross needle. There is.

As shown in Fig. 6, this device has a solenoid type electromagnetic actuator (2) (2) positioned opposite a large number of horizontal needles (9) (9) arranged vertically and horizontally at approximately 5n intervals. , after selectively switching between a position where the actuator (2) (2) can engage with the tip of the horizontal needle (9) (9) and a position where it does not engage, the device frame (1) supporting the actuator ) has a structure that moves the whole thing forward.

The two-position switching of the actuator (2) is achieved by attaching one shaft (3) for each horizontal (or vertical) row to the iron core (4) located in that row.
), an actuator (2) formed by winding a coil (5) around it is pivotally mounted, and above and below the iron core (4) (4) there are shelf-shaped magnetic frames (
6N) (6S), and the iron core (4
) is done by switching the tip of the yin and yang and swinging it toward either the top or bottom of the magnetic frame.

In this device, the output that switches the actuator between the three positions does not have the effect of pushing the cross needle, but the iron core swings between the shelf-like magnetic frames spaced about 5 cranes apart. Since the coil is wound on the outside, the iron core itself has to be made small, but this iron core collides with the horizontal needle in an inclined state and receives the impact directly, so the durability of the iron core is affected. cannot be expected.

In addition, since this iron core is all pivoted to one axis for each row, if there is a problem with one of the iron cores, the electrical signal wire must be removed and all of the rows The iron core must be removed along with the shaft to replace the defective iron core, which requires a great deal of time for repair.

(Technical Problem) The present invention houses a shaft body in a housing that reciprocates with respect to a group of driven objects, and switches the shaft body between a position corresponding to the driven body and a position not corresponding to the driven body by excitation of an electromagnetic actuator. The object of the present invention is to prevent a solenoid from receiving impact from a horizontal needle in a control device that moves the body forward and selectively pushes each driven body.

(Technical Means) The technical means to solve this technical problem are as follows: (a) A tilted part is provided at the center inside the casing, and a shaft body is biased forward, and a magnetic body is supported behind it so that it can move forward and backward. (b) When the shaft body retreats, the guide member guides the inclined part and displaces the tip end to a position facing the driven body, and the guide member restricts the retreat of the displaced shaft body. (c) An electromagnet for electromagnetically actuating each magnetic body is arranged behind the housing.

(Effect of technical means) Since the shaft body and the magnetic body are connected by a telescopic member,
When the magnetic body moves backward, the shaft body is also pulled by it and moves backward.

The shaft body is provided with an inclined part, and this is guided by a guide member protruding into the housing, and when the shaft body retreats with the movement of the magnetic body, it is placed in a position facing the driven body, and
When the magnetic body returns to its original position, the shaft moves forward and is displaced to a position where it is removed from the driven body.

The shaft body, which has been displaced to a position facing the driven body, is prevented from moving further rearward by the stopper.

The magnetic body is actuated by an electromagnet placed behind it. When the electromagnet is energized when the housing is retracted, the magnetic material becomes magnetically attached to it. When the casing moves forward in this state, the magnetic body does not change its position regardless of the movement inside the casing.
Therefore, the magnetic body relatively retreats, and the shaft body resists the biasing force and is displaced to a position facing the driven body.

If the housing is moved forward with the shaft body displaced, the shaft body will be pulled because the shaft body and the magnetic body are connected by an elastic member, but the shaft body will not be able to move back any further due to the stopper. The shaft body collides with the driven body and pushes it, and the shaft body whose connected magnetic body is not attracted to the electromagnet does not displace and therefore does not collide with the driven body.

Next, when the casing is moved back or the excitation to the electromagnet is stopped, the distance between the shaft and the magnetic body becomes smaller because they are connected by a telescopic member, and the attachment given to the shaft becomes shorter. Due to the force acting, only the shaft body moves forward within the housing, returning from the displaced position to its original position.

In this way, by selectively energizing the electromagnet placed behind the housing in synchronization with the reciprocating motion of the housing, it is possible to switch the shaft between a position facing the driven object and a position where it does not face the driven object. This means that the pushing movement can be controlled, and the impact caused by the collision of the shaft body is not transmitted to the electromagnet.

(Effects of the present invention) As a result of the shock caused by the collision of the shaft bodies not being transmitted to the electromagnet, there is no need to make the electromagnet itself strong and large, and even if the shaft bodies are arranged in parallel with small intervals vertically and horizontally, There is an advantage that the electromagnets can be arranged correspondingly, and the push control device itself can be made extremely lightweight.

This is particularly effective in a control device that requires rapid reciprocating motion, such as a Jacquard machine.

In addition, only the shaft body, the magnetic body, and the telescopic member that connects the two are housed in the housing, and because it does not have a complicated structure, there are almost no failures and there is an advantage that the operating rate can be increased.

(Embodiment) As the shaft used in this device, a thin metal rod is used. The inclined portion formed on the shaft may be formed by bending the shaft, or may be formed by protruding and fixing an inclined convex portion to the shaft.

The elastic member that connects the shaft and the magnetic material must have a contractile force that is stronger than the biasing force applied to the shaft when it is expanded, and it is preferable to use a coil spring or the like. .

(Example) Next, a specific example of the above technical means will be explained with reference to the drawings.

Figure 1 schematically shows the inside of the Jacquard machine (11), with horizontal needles (12) arranged so as to be movable in the left and right direction.
A vertical needle (13) constituted by a bent spring is held, and the vertical needle (13) swings as the horizontal needle (12) moves. In addition, in FIG. 1, only three horizontal needles are shown for convenience of explanation.

The tip of the vertical needle (13) is bent and is configured to engage with a knife (14) that normally moves up and down, and the vertical needle (13) is moved by the push of the horizontal needle (12). Knife (1
4) is moved to a position where it does not engage.

Therefore, by selecting the pushing movement of the horizontal needle (12), the vertical needle (13) is selected to rise, and the warp threads located at the lower end side of the thread thread (15) are opened.

Note that reference numerals (16) and (17) indicate support frames for penetrating and supporting the horizontal needle (12).

A housing (20) that reciprocates in the direction of the arrow (the driving means is not shown) is arranged at a position facing the horizontal needle group (12) of the Jacquard machine (1). (The casing is shown in the middle of forward movement.)

Inside the casing (20), there is a shaft (21) whose central part forms a bent part consisting of a vertical part (22) and an inclined part (23), and a pin (21) whose rear end protrudes in two stages, upper and lower. 25) and (26), and is supported by hanging the tip end side on a pin (27) which projects downward from the shaft (21).

The shaft body (21) is housed in a case (not shown) in sections, each with a vertical row of horizontal needles (12) as one unit, and the above-mentioned pins are made to protrude from the side wall of the case.

At the bent part of the shaft (21), a guide pin (28) is provided below the inclined part (23), and a stopper pin (29) is provided above it.
) are protruding from each other (see Figure 2), and the shaft (21)
When the slanted part (23) moves backward, the guide pin (28)
The tip moves upward as guided by the meter, and its tip is used for meter reading (12).
When the vertical portion (22) is positioned on the same axis as the vertical portion (22), the vertical portion (22) collides with the stopper pin (29) and its movement toward the rear side is restricted.

The shaft (21) has a stopper (30) fixed to the shaft and a bottle (
25) Return spring (2) located between (26)
4), and is configured such that the tip of the shaft (21) deviates from the axis of the horizontal needle (12) under normal conditions.

The rear end of the shaft (21) is connected via a coil spring (32) to an iron mover (31) that is movable forward and backward at the rear side of the casing (20). This coil spring (3
The elastic force of 2) is stronger than that of the return spring (24), and when the coil spring (32) is in the contracted state, the return spring (24) exerts a biasing force, but the mover retreats and the shaft The contractile force of the coil spring (32) that occurs when the distance between the return spring (21) and the mover (31) increases
The shaft (21) overcomes the pressing force of 4) and retreats.

This mover (31) is inserted between support plates (33) (33) provided on the housing in two stages, upper and lower.
In the drawing, movement is possible in the left and right directions.

At the rear of the casing (20), electromagnets (35) are arranged vertically and horizontally in correspondence with each mover (31), and these electromagnets are connected to a separately installed electrical signal giving device using a matrix circuit. (36), and the electromagnets that are excited and the electromagnets that are not excited are controlled based on the electric signal provided by this device.

When the electromagnet (35) is activated when the housing (20) is retreated, the mover (3) corresponding to the excited electromagnet (35)
1) is magnetically attached to the electromagnet (35).

When the housing (20) is moved forward in this state, the mover (31
) remains stationary, so the mover (31) and shaft (2
1), and the shaft (21) is pulled back by the coil spring (32). The shaft (21) is displaced as it retreats and is located on the same axis as the horizontal needle (12), and when the housing (20) continues to move forward, the displaced shaft (21) is aligned with the horizontal needle (12). It will collide and push this.

In the above embodiment, the shaft (21) is formed by bending, but as shown in FIG.
) is fixed by welding or the like so that the inclined side (43) follows the guide bin (28) and is configured to come into contact with the stopper (39) when displaced. can.

Note that it is desirable that the stopper of the shaft be placed as close to the tip of the shaft as possible.

When connecting the shaft (21) and the magnetic body (31) with the coil spring (32), as shown in FIG.
If the core shaft (38) is made to protrude from 1) and the coil spring (32) is positioned outside of it, the magnetic material (31)
It is possible to completely prevent malfunctions caused by bending of the spring when moving forward and backward.

In addition, in the embodiment, the shaft (21) directly pushes the horizontal needle (12), but the case (21) as shown in FIG.
20) side with the rod (46) biased toward the bushing rod (
It is also possible to push and move the horizontal needle (12) through the intervening needle (45).

[Brief explanation of the drawing]

The drawings are for explaining specific examples of the above-mentioned technical means, and FIG. 1 is a schematic front view of a Jacquard machine, and FIG.
3 is an enlarged view of the shaft in another embodiment, FIG. 4 is an enlarged view of the state in which the shaft and magnetic body are connected in another embodiment, and FIG. 5 is an enlarged view of the shaft used in the figure. The figure is a front view of the bushing rod, and FIG. 6 is a principle diagram of a conventional pushing device. (11) Jacquard machine, (12) horizontal needle, (13) vertical needle,
(21) (41) shaft, (22) (23) bent part of shaft,
(28) Guide bin, (29) (39) Stopper, (
31) Mover, (32) Coil spring, (35) Electromagnet,
(36) Electric signal giving device patent applicant: Takemura Manufacturing Co., Ltd. Figure 2, Figure 5, Figure 6

Claims (4)

[Claims] (1) The shaft body is housed in a housing that reciprocates with respect to the group of driven objects, and by excitation of the electromagnetic actuator, the shaft body is switched between a position corresponding to the driven body and a position not corresponding to the driven body, and the housing is moved forward. In a control device that selectively pushes each driven object, an elastic member is used to connect a shaft body with a tilted part at the center inside the housing and biased forward, and a magnetic body supported so as to be movable back and forth behind the shaft body. A guide member which is arranged in a connected manner and which guides the inclined part of the shaft body and displaces the tip end to a position facing the driven object when the shaft body retreats, and a stopper which restricts the retreat of the displaced shaft body are protruded, and a housing is provided. A push control device that has an electromagnet placed behind it that electromagnetically activates each magnetic body. (2) The device according to claim 1, wherein the inclined portion is formed by bending the shaft. (3) The device according to claim 1, wherein the inclined portion is formed by a convex portion fixed to the shaft body. (4) Claim 1 in which the telescoping member is a coil spring
The equipment described in section.