JPH0530876Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention moves in conjunction with the raising and lowering of the slide of a press machine, thereby removing the hand of a worker who has entered the danger limit of the press machine. Concerning a hand-operated press safety device that eliminates the air.

BACKGROUND TECHNOLOGY Conventional hand-operated press safety devices have only one dispensing arm.

Problems that the invention aims to solve: Therefore, when a worker handles a workpiece with both hands, if the worker's hands are within the danger limit, the worker's malfunction or the press machine malfunctions and the machine slides. When the machine is lowered, the sweeper arm sweeps one hand but not the other, and this unswept hand can be damaged by the press machine, which is a serious drawback.

Specifically, for example, a worker sets a workpiece into a press machine with his right hand, and after the press process is finished,
When carrying out work such as taking out a workpiece from a press machine with the left hand, and when the sweep arm moves from right to left when the slide descends, the worker's both hands must be within the danger limits of the press machine. When the slide of the press machine was lowered while the machine was in use, the right hand was swept away by the sweep arm and removed out of the danger limit, but the left hand was not swept away by the sweep arm and could be damaged by the press machine (such accidents This is particularly likely to occur when the stroke of the slide, and by extension the stroke of the sweep arm, becomes small).

Purpose of the invention The present invention was made in order to solve the above-mentioned conventional problems, and is to remove both hands of a worker who has entered the danger limit of a press machine out of the danger limit. The purpose is to provide a hand-operated press safety device.

Means for Solving the Problems The manual press safety device according to the present invention is linked to a slide of a press machine, and moves in conjunction with the raising and lowering of the slide, so that the press machine In the manual press safety device, the manual press safety device includes a sweep arm that sweeps the hand of a worker who has entered the danger limit and removes the worker's hand outside the danger limit, wherein the first sweep arm moves in the same direction during the slide lowering process. and a second sweeping arm, the first sweeping arm is located in front of the second sweeping arm with respect to the direction of movement of both arms during the slide lowering process, and when the slide is rising, the operator: One hand is passed between the first sweep arm and the second sweep arm to enter the danger limit, and the other hand is passed in front of the first sweep arm with respect to the direction of movement. The device is arranged so that it can be entered into the danger limit.

Function According to the present invention, when an operator handles a workpiece with both hands, one hand passes between the two sweeping arms and handles the workpiece within the danger limit, and the other hand If the workpiece is handled by passing it in front of the first sweeping arm and entering the danger limit, the operator may malfunction or the press machine may malfunction while both hands are within the danger limit of the press machine. Even if the slide is lowered by this, the one hand is swept away by the first sweeping arm and the other hand is swept away by the second sweeping arm, and both of them are removed outside the danger limit.

Embodiments Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

1 and 2 are front views showing an embodiment of the manual press safety device according to the present invention.
In this embodiment, an upper end of a first sweep arm 3 and an adjustment plate 4 are rotatably supported on a base plate 1 fixed to a fixed part (not shown) of a press machine about a bolt 2. ing. The adjustment plate 4 is provided with an appropriate number of screw holes 4a,
A bolt 5 inserted through the first brushing arm 3 is screwed into one of these screw holes. The first sweeping arm 3 and the adjusting plate 4 are thus connected by the bolts 2 and 5, and thus are integrated with each other. However, the relative angle between the first sweeping arm 3 and the adjusting plate 4 can be adjusted by changing the screw hole 4a through which the bolt 5 is inserted.

An adjusting member 3a is fixed near the upper end of the first sweeping arm 3, and the adjusting member 3a includes:
A suitable number of screw holes 3b are provided. Further, near the lower end of the first sweeping arm 3, a cushioning material 6 made of rubber or the like is attached to reduce the impact exerted on the hand when the arm 3 sweeps the hand.

7 is a second sweeping arm, and this arm 7 is provided with a slot 8 along its length. This second sweeping arm 7 is connected to the slot 8
The bolt 9 inserted into the slot 8 is inserted into the first sweeping arm 3, and the bolt 20, which is also inserted through the slot 8, is screwed into one of the screw holes 3b. In turn, it is fixed to the adjustment plate 4. In addition, the first pay arm 3
The mounting angle of the second blowing arm 7 relative to the second brushing arm 7 can be adjusted by changing the screw hole 3a through which the bolt 20 is inserted. A buffer material 10 and a protection plate 11 are attached near the tip of the second sweeping arm 7.

An adjustment rod 12 is rotatably coupled to the tip of the adjustment plate 4 via an adjustment shaft 13. The lower end of the adjustment rod 12 is rotatably connected to the slide 15 of the press machine via a bolt 14.

Next, the operation of this embodiment will be explained.

When the slide 15 is at the top dead center, the device is in the state shown in FIG. As the slide 15 descends, this movement is transmitted to the adjustment plate 4 via the adjustment rod 12, and as shown in FIG. rotates integrally around the bolt 2 in the counterclockwise direction in the figure. Further, as the slide 15 moves upward after reaching the bottom dead center, the adjustment plate 4, the first sweep arm 3, and the second sweep arm 7 rotate clockwise in the figure. When the slide 15 reaches the top dead center, it returns to the state shown in FIG.

Therefore, for example, when an operator sets a workpiece (not shown) in a press machine with the right hand 16 and takes out the workpiece with the left hand 17 after the press work is completed, the workpiece shown in the figure is As shown, the right hand 16 is the first sweep arm 3 and the second sweep arm 7.
The workpiece is set by passing between the
If the left hand 17 is passed to the left of the first sweeping arm 3 to take out the workpiece, there is no possibility of operator malfunction with the right hand 16 and the left hand 17 within the danger limits of the press machine. Or even if the slide 15 descends due to a malfunction of the press machine, the right hand 16 is swept away by the second sweeping arm 7 and the left hand 17 is swept away by the first sweeping arm 3, as shown in FIG. Excluded outside the danger limits.

Therefore, it is possible to reliably prevent the occurrence of an accident in which one hand (the left hand 17 in the above example) is not swept away by the sweeping arm and is damaged by the press machine as in the conventional case.

In addition, in the present invention, it is not necessarily necessary to move the sweeper arm by a link mechanism as in the above embodiment, but for example, the sweeper arm may be moved in conjunction with the slide by some other mechanism such as a cam mechanism or a mechanism using a spring. You can.

Further, in the embodiment described above, the two sweeping arms move integrally, but these two arms may move while moving relative to each other. Further, in the above embodiment, the two sweeping arms move from the right side to the left side, but it is of course possible to move the sweeping arms from the left side to the right side depending on the situation.

Effects of the invention As described above, the manual press safety device according to the invention has the advantage of being able to reliably sweep both hands of a worker who has come within the danger limits of the press machine to remove them outside the danger limits. It is possible to obtain the desired effect.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the manual press safety device according to the present invention, and FIG. 2 is a front view showing the embodiment in a different operating position from FIG. 3...First sweep arm, 4...Adjustment plate (member that rotates in conjunction with the rise and fall of the slide), 7...Second sweep arm, 15...Slide, 16...Right hand, 17... left hand.

Claims (1)

[Claims for Utility Model Registration] 1. The utility model is connected to a slide of a press machine, and moves in conjunction with the raising and lowering of the slide, so that a worker who falls within the danger limit of the press machine during the lowering process of the slide can In a manual press safety device having a sweep arm that sweeps the hand out of the danger limit, the first sweep arm and the second sweep arm move in the same direction during the slide lowering process,
With respect to the direction of movement of both arms during the slide lowering process, the first sweeping arm is located in front of the second sweeping arm, and when the slide is rising, the operator uses one hand to move the first sweeping arm. passing between the arm and the second sweeping arm to enter the danger limit, and passing the other hand in front of the first sweep arm in the direction of movement to enter the danger limit. A hand-operated press safety device characterized in that it is arranged so that it can be operated. 2. It has a member that is connected to the slide of the press machine and rotates in conjunction with the raising and lowering of the slide, and a first and second sweeping arm that are fixed to this member, and Utility model registration claim 1, in which a space is provided between the lower end sides of the sweeper arm and the lower end side of the second sweeper arm.
Hand-operated press safety device as described in section.