JPH05118399A - Double stroke device - Google Patents

Abstract

PURPOSE:To prevent interference with work by movably forming also a frame itself arranged with a slider so that its moving distance is set to a stroke almost double the length of the frame, and further by retracting the frame from a work position or the like. CONSTITUTION:A frame 1 is movably arranged to reciprocate on a base 2, and pulleys 3, 4 are rotatably supported with both end parts in the frame 1. A drive wheel 5 connected to the one pulley 3 can be turned through a transmitting belt 6 by a motor 7. A linked running belt 8 fixed to the base 2 is mounted between these pulleys 3, 4, and when the pulley 3 is driven and rotated by the motor 7, the frame 1 is reciprocated relatively to the base 2 along the belt 8 by running opposite to each other of the pulleys 3, 4 and the linked running belt 8. A slider 9 is movably arranged on an upper surface of the frame 1 and secured to the belt 8, and at the time of moving the frame 1, the slider 9 is moved by a stroke double the moving distance of the frame 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stroke device that reciprocates between two set positions, and more particularly to a double stroke device that can reciprocate a stroke approximately twice that of a moving frame.

[0002]

2. Description of the Related Art Conventionally, two positions such as a processing position and a position at which an article such as a product or material is sent to a processing place such as a workstation, or sent out or taken out for taking out A stroke device that reciprocates between is used.

In a conventionally known stroke device, a fixed frame having a length corresponding to the distance between the two positions is arranged between the two positions, and the slider is reciprocally movable along the longitudinal direction in the fixed frame. There is known a mechanism in which the slider is moved by a winding traveling means or a screw means arranged in a fixed frame. An article to be conveyed is placed on the slider, and is moved between two positions. Can be moved.

In such a conventionally known stroke device, the stroke of reciprocation of the slider is limited within the range of the length of the frame, and the frame is fixedly arranged between two positions. Therefore, for example, one end of the frame is adjacent to the processing position, which may interfere with the processing work.

[0005]

SUMMARY OF THE INVENTION According to the present invention, the moving distance of the slider can be substantially doubled by moving the frame itself in which the slider is arranged. At the same time, by moving the frame, the frame is retracted from the processing position and the like so as not to interfere with the work, and the frame and the slider can be moved by a single motor.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, a means adopted by the present invention comprises a frame having a desired length which is arranged so as to be reciprocally movable in a longitudinal direction with respect to a fixed base. A slider disposed on the frame and movable in the longitudinal direction of the frame in the same direction as the moving direction of the frame, a driving means attached to the frame, and the frame driven by the driving means relative to the base. It is characterized in that the frame and the slider are moved by traveling of the traveling means by the driving means.

[0007]

[Operation] At the same time as the frame (1) moves forward and backward, the slider (9) placed on the frame (1) moves
Move forward and backward in the same direction as (1). Thus, the slider (9) on which the desired article or tool is placed or supported is advanced to the processing position, or while it is retracted, the frame (1) supporting the slider (9) is also advanced to the processing position. Or it can be retracted.

The slider (9) can be moved at a stroke and a speed twice as long as the moving distance of the frame (1).

[0009]

According to the present invention, the frame (1) can be reciprocated together with the reciprocating movement of the slider (9), and the frame (1) can be retracted from, for example, the processing position.

[0010]

The drawings show a preferred embodiment of the invention,
1 to 4 show a first embodiment, and FIGS. 5 to 10 show a second embodiment. In the figure, (1) is a frame, which is arranged so as to be reciprocally movable in the longitudinal direction with respect to the base (2).

Pulleys (3) and (4) are axially supported in the frame (1) so as to face both ends thereof. A drive wheel (5) is coaxially connected to one of the pulleys (3), and the drive wheel (5) is
Is connected to the motor (7) via a conductive belt (6). The motor (7) is a motor of an appropriate type such as a servo motor or a step motor, and is provided on the frame (1).

Two pulleys arranged in the frame (1)
Between (3) and (4), a winding traveling belt (8), such as a timing belt, which provides accurate traveling is mounted. The winding traveling belt (8) is fixed to the base (2) and the traveling is stopped.

Therefore, when the pulley (3) is driven and rotated by the motor (7), the pulleys (3) and (4) and the running belt (8) are wound around.
The frame (1) reciprocates relative to the base (2) along the winding traveling belt (8) by traveling in a reciprocal manner.

Reference numeral (9) is a slider arranged on the upper surface of the frame (1) so as to be movable along the longitudinal direction thereof, and is fixed to the winding traveling belt (8). Base (2)
The fixed position between the belt and the running belt (8) and the fixed position between the belt (8) and the slider (9) are located opposite to both ends of the frame (1).

The pulley (3) is driven and rotated to rotate the frame (1).
When the slider moves relative to the base (2), the sliders (9) move to the frame due to reciprocal running of the pulleys (3) (4) and the winding running belt (8) as shown in FIG. It moves relative to the frame (1) in the same direction as the moving direction of (1). Thus, the slider (9) moves substantially twice the stroke of the moving distance of the frame (1), and the moving speed thereof also becomes double the moving speed of the frame (1).

As shown in FIG. 4, by rotating the motor (7) in the direction opposite to that in FIG. 3, the frame (1) moves in the direction opposite to that in FIG. 3, and at the same time, the slider (9) also moves in the opposite direction. To do. In other words, the motor (7) rotates in the normal and reverse directions, so that the frame
(1) and the slider (9) reciprocate.

FIGS. 5 to 10 show a second embodiment of the present invention. Instead of the winding traveling belt (8) of the first embodiment shown in FIGS. 1 to 4, two screw rods (10) ( 11) is used. Screw rod
(10) and (11) are rotatably supported at both ends in the frame (1), and drive wheels (5) and (5 ') are respectively provided at one end.
Is fixed, and the drive wheel (5) is connected to the motor (7) arranged on the frame (1) via the conductive belt (6). The two screw rods (10) (11) are arranged in parallel at a vertical interval, and the lower screw rods (10) are screw holes (12) of the base (2).
The upper screw rod (11) is screwed into the screw hole (13) of the slider (9). Two screw rods (10) and (11) are formed with screws in opposite directions.

When the motor (7) is activated, the two screw rods (10) (1
Rotate 1) and screw holes in the lower screw rod (10) and base (2)
The threaded rod (10) is the base (2) due to the relative rotation with the (12).
Relative to, and as a result, the frame (1) pivotally supporting the screw rod (10) moves.

Further, the slider (9) moves relative to the frame (1) by the relative screw rotation of the upper screw rod (11) and the screw hole (13) of the slider (9). Two screw rods
Since (10) and (11) have screws formed in opposite directions,
Both the frame (1) and the slider (9) move in the same direction. As a result, as in the first embodiment, the slider
(9) has a stroke twice as long as the moving distance of the frame (1), and when the screw pitches of the two screw rods (10) and (11) are the same, it moves at double speed.

As described above, according to the double stroke device of the present invention, the frame (1) moves forward and backward, and at the same time, the slider (9) arranged on the frame (1) moves the frame (1). Move forward and backward in the same direction. Thus, the frame supporting the slider (9) while advancing or retracting the slider (9) on which the desired article or tool is placed or supported to the processing position.
(1) can also be moved forward or backward to the processing position, and there is no possibility of disturbing the work as in the conventional stroke device in which the frame (1) is fixedly arranged.

[Brief description of drawings]

 FIG. 1 External perspective view of the first embodiment FIG. 2 Cross-sectional view of the same main portion FIG. 3 Same operation diagram FIG. 4 Same operation diagram FIG. 5 External perspective view of the second embodiment FIG. 6 Cross-sectional view of the same main portion FIG. Fig. 8 Same operation diagram Fig. 9 Same operation diagram Fig. 10 Same operation diagram

[Explanation of symbols]

 (1) Frame (2) Base (3) Pulley (4) Pulley (5) Drive wheel (6) Conductive belt (7) Motor (8) Winding belt (9) Slider (10) Screw rod (11) Screw Rod (12) Screw hole (13) Screw hole

Claims (3)

[Claims] 1. A frame having a desired length, which is reciprocally movable in a longitudinal direction with respect to a fixed base,
A slider arranged on the frame and movable in the longitudinal direction of the frame in the same direction as the moving direction of the frame, a drive means attached to the frame, and the frame driven by the drive means to move relative to the base. A double-stroke device, characterized in that the frame and the slider are moved by the traveling of the traveling means by the driving means. 2. A frame having a desired length, which is reciprocally movable in a longitudinal direction with respect to a fixed base,
A slider arranged on the frame and movable in the longitudinal direction of the frame in the same direction as the moving direction of the frame; a motor attached to the frame; and a winding conductive belt mounted on a pulley arranged in the frame, A double-stroke apparatus comprising: a means for connecting a motor and a winding conduction belt, wherein the winding conduction belt is fixed to the base and a slider is fixed to the winding conduction belt. 3. A frame having a desired length, which is reciprocally movable in the longitudinal direction with respect to a fixed base,
A slider arranged on the frame and movable in the same direction as the frame in the longitudinal direction of the frame, a motor mounted on the frame, and two screws arranged in the frame and having screws in opposite directions formed therein. Consisting of a threaded rod
A double-stroke device in which both screw rods are connected to the motor, one screw rod is screwed into the base, and the other screw rod is screwed into a slider.