JPH01271374A - Hoop material transferring device - Google Patents

Abstract

PURPOSE:To automatically adjust the stroke distance of a movable clamp by detecting the adjusting distance in response to the back-and-forth movement of a stroke restricting member with a detecting means and driving the restricting member so as to match with the preset adjusting distance set value. CONSTITUTION:The movement of a movable clamp 6 is restricted by the back- and-forth movement of a stopper 11 via the rotation of an adjusting screw 9. The rotation of the movable clamp 6 is controlled by a driving motor 17 controlled by a control means 18. A linear potentiometer 12 is adjacently arranged along a stopper bar 10, its sliding piece 13 is connected to the stopper 11, the position of the stopper 11 is detected and inputted to the control means 18. The adjusting distance set value set by a setter 19 in advance is inputted to the control means 18, this preset value and the adjusting distance signal shown by the potentiometer 12 are compared, the motor 17 is rotated until they coincide. The position of the movable clamp 6 is automatically adjusted to the preset position.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a hoop material transfer device,
In particular, the present invention relates to a hoop material transfer device that includes a fixed clamp and a movable clamp and intermittently transfers the hoop material by reciprocating the movable clamp over the hoop material gripped by the fixed clamp.

<Prior Art> As a hoop material transfer device, there is a device that is equipped with a fixed clamp and a movable clamp and transfers the hoop material by reciprocating the movable clamp with respect to the fixed clamp. An overview of its configuration is shown.

In the figure, a fixed clamp 4 is fixedly attached to the left end of a guide 3 attached to a mounting frame 2 on a base 1, while a slide block 5 is attached so as to be slidable left and right. A movable clamp 6 is mounted on the slide block 5. And slide block 5
The piston rod 8 of the drive cylinder 7 is attached to the hanging piece 5a.
The slide block 5 and movable clamp 6 are integrally driven by the cylinder 7 to slide on the guide 3 and reciprocate with respect to the fixed clamp 4. Note that the right end of the guide 3 and the drive cylinder 7 are attached to a right mounting frame (not shown).

On the other hand, an adjustment screw 9 is rotatably screwed onto the mounting frame 2 and constitutes a stroke distance regulating member that regulates the stroke distance of the movable clamp 6. That is, the adjustment screw 9 is made to protrude and extend by an appropriate distance toward the hanging piece 5a of the slide block 5 to which the movable clamp 6 is attached, and the piston rod 8 that extends when the drive cylinder 7 is driven forward. The driven hanging piece 5a comes into contact with the tip of the adjustment screw 9 to regulate the stroke end of the piston rod, and by adjusting the protrusion amount of the adjustment screw 9, the stroke distance of the movable clamp 6 can be adjusted. Can be regulated. Note that the regulation of the stroke end on the right side of the movable clamp 6 may be ensured by completely recessing the piston rod 8 into the drive cylinder 7, or by inserting the slide block 5 into a fixed regulation piece (not shown). It may be ensured by contact between the two.

To transfer the hoop material M with the above configuration, the hoop material M is gripped by the fixed clamp 4, the piston rod 8 is extended by the forward drive of the drive cylinder 7, and the movable clamp 6 in the open state is moved to the left side in the figure, i.e. , when the movable clamp 6 moves forward toward the fixed clamp 4 side and reaches the end of the stroke where the hanging piece 5a of the slide block 5 comes into contact with the YJ trimming screw 9, closes the clamp 6 and grips the hoop material M, Next, the fixed clamp 4 is released, and then the piston rod 8 is contracted by the backward drive of the drive cylinder 7, and the movable clamp 6 in the gripping state is moved back to the right in the figure to transfer the hoop material M by a predetermined amount. It is done by doing.

<Problems to be Solved by the Invention> In the above-mentioned conventional technology, the adjustment screw, which is a stroke distance regulating member that regulates the stroke distance of the movable clamp, is manually rotated and the protrusion amount is measured using a scale. , since the adjustment distance is set, manual operation is required each time the stroke is adjusted, which is not only very complicated, but also takes a lot of time to set the stroke, and it also depends on the scale. There was a problem in that it involved a large amount of error because it was a visual measurement.

Means for Solving the Problems In view of the problems such as the complexity of the stroke distance setting work due to the structural limitations of the hoop material transfer device based on the above-mentioned conventional technology, we have developed a method that responds to the forward and backward movement of the stroke distance regulating member. A stroke distance regulating member drive that outputs an adjustment distance signal representing the adjustment distance from the adjustment distance detection means and drives the stroke distance restriction member forward and backward so that the adjustment distance represented by the signal matches a predetermined adjustment distance setting value. The above-mentioned problem is solved by providing means to automatically set the stroke distance of the movable clamp.

Function> The configuration of the present invention is such that when setting the stroke distance of the movable clamp, the stroke distance regulating member is moved forward or backward, the amount of movement thereof is detected by the adjustment distance detection means, and an adjustment distance signal representing the adjustment distance is generated. The adjustment distance is compared with a preset adjustment distance setting value, and the stroke distance regulating member is driven to move forward or backward until they match, and when they match, it is stopped and the stroke of the drive cylinder is adjusted. That is, it functions to automatically adjust the stroke distance of the movable clamp.

<Example> Next, an example of the present invention will be described below based on the drawings from FIG. 2 onwards.

In FIG. 2, a stopper bar 10 is slidably attached to the mounting frame 2, and a stopper 11 is attached to the tip of the stopper bar 10, and the hanging piece 5a of the slide block 5 is attached to the stopper 11. The stroke of the drive cylinder 7 is regulated by the contact. As is more clearly seen in FIG.
3 is connected to the stopper 11, and the stopper 11
The linear potentiometer 12 constitutes adjustment distance detection means.

On the other hand, a timing belt pulley 15 is fixed to the rear end of the stroke distance regulating member, that is, the adjustment screw 9, and is connected to a drive motor 17 via a timing belt 16, as shown in FIG. There is. The tip of the adjustment screw 9 is rotatably connected to a stopper 11.

As shown in FIG.
is electrically connected to the control means 18, and a setting device 19 is electrically connected to the control means 18,
An output line of the control means 18 is connected to the drive motor 17, and the control means 18 and the drive motor 17 constitute a stroke distance regulating member drive means 20.

Note that the other components are the same as those indicated by the same reference numerals in FIG.

In the above configuration, when setting the stroke of the drive cylinder 7, that is, the stroke distance of the movable clamp 6, the motor 17 is driven and the adjusting screw 9 is set via the belt 16.
rotate it to move it forward or backward relative to the mounting frame 2,
The stopper 11 at the tip is moved forward or backward. At this time, the amount of movement of the stopper 11 is detected by the linear potentiometer 12, and an adjustment distance signal S representing the adjustment distance is supplied to the control means 18. The control means 18 compares a predetermined adjustment distance set value predetermined by the setting device 19 with the adjustment distance represented by the adjustment distance signal S, and continues to rotate the drive motor 17 until they match. By executing the normal list price control, the adjustment screw 9 is driven until the adjustment distance matches the adjustment distance setting value and then stopped. The position of the stopper 11 automatically controlled in this way regulates the new stroke end of the piston rod 8 of the drive cylinder 7, and determines the new transfer stroke of the hoop material M.

In addition, in the above embodiment, the adjustment screw constituting the stroke distance regulating member was explained as being driven by a timing belt, but the invention is not limited to this, and it may be driven by a chain wheel or gears. Of course.

Effect> As described above, according to the present invention, the transfer stroke of the hoop material is regulated by bringing the tip of the stroke distance regulating member that can move forward and backward toward the movable clamp into contact with the movable clamp. In the hoop material transfer device, the adjustment distance detection means detects the movement distance of the stroke distance regulating member, that is, the adjustment distance, and the adjustment distance detected there is compared with a preset adjustment distance setting value, and the adjustment distance detection means detects the adjustment distance. By providing a stroke distance regulating member driving means for moving the stroke distance regulating member forward and backward so that the stroke distance regulating member matches the set value, the stroke distance of the movable clamp is automatically adjusted to match the set value. It has the advantage of eliminating the need for complicated manual operations and reducing the amount of time required for adjustment.
Furthermore, there is the advantage that the stroke adjustment is carried out very precisely.

[Brief explanation of the drawing]

Fig. 1 is a side view of the prior art, Fig. 2 and the following show embodiments of the present invention, Fig. 2 is a side view, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is a sectional view taken along line A-A in Fig. 2. Similarly, BB sectional view in Figure 2,
FIG. 5 is an overall explanatory schematic diagram. 1... Base 2... Mounting frame 4... Fixed clamp 5... Slide block 5a...
Hanging piece 6...Movable clamp 7...Drive cylinder 9...Stroke distance regulating member (adjustment screw) 11...
・Stopper 12... Adjustment distance detection means (linear potentiometer) 13... Slider 17... Drive motor 1
8... Control means 18... Setting device 20...
・Stroke distance regulating member driving means M...hoop material

Claims (1)

[Scope of Claims] A fixed clamp 4 that is immovable with respect to the base 1 and capable of gripping and releasing the hoop material M; and a fixed clamp 4 that is disposed opposite to the fixed clamp 4 at a predetermined distance and is capable of reciprocating with respect to the fixed clamp. A movable clamp 6 that can grip and release the hoop material, and a movable clamp 6 that extends from the fixed clamp 4 side toward the movable clamp 6 by an adjustable distance so as to be able to move forward and backward, and its tip abuts the movable clamp 6 that moves back, A stroke distance regulating member 9 that regulates the stroke distance of the movable clamp 6 resulting from the backward movement; and a hoop material transfer device comprising: a stroke distance regulating member 9 that regulates the stroke distance of the movable clamp 6 resulting from the backward movement; an adjustment distance detection means 12 that outputs an adjustment distance signal S representing the adjustment distance; and a stroke that drives the stroke distance regulating member 9 forward and backward so that the adjustment distance represented by the adjustment distance signal S matches a preset adjustment distance setting value. A hoop material transfer device including a distance regulating member driving means 20.