JPH0533213Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Industrial field of application) The present invention relates to a sheet material accumulation device for a shearing machine, and more specifically, it relates to a conveyor that conveys sheet materials in the rear direction and a sheet material accumulation device for a shearing machine. The present invention relates to a board stacking device that prevents contact with a lifter table.

(Prior Art) Conventionally, a plate material sheared and separated by a shearing machine is conveyed backward by a belt conveyor placed on the rear side of the shearing machine, and a lifter placed on the rear side of this belt conveyor. It is configured to be dropped and accumulated on a table (for example, Jikosho
60-1936).

(Problem to be solved by the invention) In the conventional configuration, when stacking strip-shaped plates transported by a belt conveyor and dropped on a lifter table, the plates are stacked in multiple rows in the front and back direction on the lifter table. are accumulated in

Therefore, at first, the lifter table is introduced to the underside of the belt conveyor and raised to a predetermined position, and then the lifter table is gradually lowered as the plates are stacked one by one to stack the first row.
After the lifter table is moved backward by an amount corresponding to the width of the next row, it is raised again to a predetermined position to stack the plates of the next row.

As described above, if the lifter table is moved up under the belt conveyor and then raised, the lifter table may come into contact with the belt conveyor and be damaged.

[Structure of the invention] (Means for solving the problems) In view of the conventional problems mentioned above, the present invention has the following features:
A lifter for accumulating the plate materials is provided on the rear side of the conveyor that conveys the plate materials sheared and separated by the shearing machine in the rear direction, and is movable back and forth, and a lifter table equipped with this lifter is placed below the conveyor. The plate accumulating device for a shearing machine is provided so as to be freely accessible to the side and movable up and down. A sensor is provided for detecting that the lifter table has risen to the predetermined height position in order to stop the lifter table from rising when the lifter table has risen.

(Function) In the above configuration, when the lifter table is raised after entering the lower side of the transport conveyor, the sensor provided on the transport conveyor detects that the lifter table has risen to a predetermined height position, and the lifter table is raised. Since the lifter table is stopped from rising, there is no possibility that the lifter table will come into contact with the conveyor.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Referring to FIG. 2, a fixed lower blade 7 is attached to a support frame 5 attached to a lower frame 3 of the shearing machine 1. In contrast to the fixed lower blade 7, there is a movable upper blade 1 at the bottom of a ram 11 that can move up and down and is guided by a guide roller attached to a part of the upper frame 9.
3 is installed.

The vertical movement of the ram 11 is performed by the vertical movement of a connecting rod 17 attached to the lower part of the ram 11 via a shaft 15. That is, one end of the connecting rod 17, which is part of the driving device for the ram 11, is attached to the ram 11 via the shaft 15, and the connecting rod 17
The other end is rotatably eccentrically supported on a shaft 19, and one pulley 21 is attached to the shaft 19.

On the other hand, a drive motor (not shown) is attached to the upper frame 9, and the other pulley 23 is attached to the drive motor. A belt 25 such as a timing belt is wound around one pulley 21 and the other pulley 23.

With the above configuration, when the drive motor (not shown) is driven, the shaft 19 is rotated via the pulley 23, belt 25, and pulley 21. By rotating the shaft 19, the connecting rod 17 moves up and down, and the ram 11 moves up and down.
The movable upper blade 13 moves up and down as the ram 11 moves up and down,
Shearing is performed on the plate material W placed and pressed on the fixed lower blade 7.

In the shearing machine 1, a work table 27 on which a plate material W is placed is located before and after the processing position where the fixed lower blade 7 and the movable upper blade 13 cooperate to perform shearing processing.
and a workpiece transport device 2 that transports the plate material W after shearing it.
9 is provided. A plurality of rollers 31 are provided on the work table 27 so as to be able to roll freely in the front and rear directions, making it easy to carry in the plate material W.

The workpiece conveyance device 29 includes a plurality of rollers 33A, 3
3B, 33C and their respective rollers 33A, 33B,
It consists of a belt conveyor 35 as a conveyor wound around 33C. That is, a movable conveyor frame 37 is arranged at the rear lower part of the shearing machine 1, and a bracket 3 is installed at the right end of the conveyor frame 37.
9 is installed. The roller 33 is connected to the bracket 39 via a rotatable shaft 41.
B is supported.

With the above configuration, the roller 33B is rotated by driving, for example, the shaft 41 by a drive motor (not shown), and the rollers 33A, 3
The belt conveyor 35 wound around 3B and 33C moves as shown by the arrow. As the belt conveyor 35 moves, the sheared plate material W is placed on the belt conveyor 35 and moved from the left side to the right side. In addition, the workpiece conveyance device 29
consists of an electromagnetic belt conveyor, for example.
A support frame 43 equipped with a plurality of electromagnets is located below the belt conveyor 35 that conveys the plate material W.
are provided extending in the left-right direction in FIG. 2, and the plate material W is attracted to the belt conveyor 35 by an electromagnet and conveyed.

On the right side in FIG. 2 behind the processing position,
A back gauge device 45 is provided, which is movable in the left and right directions in the conveying direction of the plate material W in FIG.
The edge of the plate W to be sheared is brought into contact with an abutting member 47 attached to the tip of the back gauge device 45 to position the plate W.

At the front left side of the ram 11 in FIG.
A workpiece holding device 49 is provided to press down the workpiece before starting shearing.

At the upper right end in FIG. 2 of the conveyor frame 37 on the rear end side of the belt conveyor 35, a guide rail 51 extending in a direction perpendicular to the plane of the paper is attached. The guide rail 5
1 is engaged with a movable guide member 53 that is guided in a direction perpendicular to the plane of the paper. The guide member 53 holds the plate material W on the conveyor 3.
A front stopper 59 is integrally attached to the lifter table 57 of the lifter 55 serving as a stacking section. A rear stopper 61 extending in the vertical direction is attached to the right side of the lifter 55 in FIG.

FIG. 1 shows a state in which the lifter 55 is inserted into the lower part of the conveyor frame 37.
In FIG. 1, a sensor such as a ribbon switch 63 for stopping the rise of the lifter is attached to the lower part of the front stopper 59 or the guide member 53.

This ribbon switch 63 is a band-shaped switch made of conductive rubber or the like, and is a switch in which the pressed part becomes energized, and is a common switch.

With the above configuration, when the lifter 55 is raised, the upper surface of the lifter table 57 comes into contact with the ribbon switch 63 for stopping lifter elevation, and as a result, the ribbon switch 63 is turned on and the lifter 55 is stopped. When the lifter 55 stops, a buzzer sounds to alert the worker, thereby ensuring the safety of the machine and the worker.

Although an example is shown in which the ribbon switch 63 is used as the sensor, other high frequency proximity switches or the like may be used to detect the raised position of the lifter 55 so as to be able to stop it at a certain predetermined height position. Further, although the sensor is installed at the lower part of the front stopper 59 or the guide member 53, it may be installed at the lower part of the conveyor frame 37, etc.

Note that the present invention is not limited to the embodiments described above, but can be implemented in other forms by making appropriate changes.

[Effects of the invention] As can be understood from the above description of the embodiments, in short, the present invention has the following advantages: A lifter 55 for accumulating the plate materials is provided so as to be movable back and forth, and this lifter 55
The lifter table 57 is installed on the rear side of the transport conveyor 35 in a board stacking device for a shearing machine, which is provided with a lifter table 57 that can freely enter the lower side of the transport conveyor 35 and can move up and down. A sensor is provided for detecting that the lifter table 57 has risen to the predetermined height position in order to stop the lifter table 57 from rising when the lifter table 57 has risen to a predetermined height while entering the lower side of the conveyor 35. It is what it is.

As is clear from the above configuration, in the present invention, a sensor 63 is provided on the rear side of the conveyor 35 to detect when the lifter table 57 has risen to a predetermined height. Therefore, when a part of the lifter table 57 is moved under the transport conveyor 35 and raised in order to accumulate the plate materials transported backward by the transport conveyor 35, the lifter table 57 The table 57 is the conveyor 3
5 etc., the sensor 63 detects that the lifter table 57 has risen to a predetermined height position and stops the lifter table 57 from rising, thus preventing the lifter table 57 from coming into contact with the conveyor 35. It is possible.

[Brief explanation of the drawing]

FIG. 1 shows the main parts of an embodiment of the present invention, and is an enlarged side view of the arrow I in FIG. 2 and a side explanatory view showing the relationship between the lifter and the lifter. FIG. 2 is an explanatory side view showing a sheet material accumulating device of a shearing machine according to an embodiment of the present invention. 1... Shearing machine, 7... Fixed lower blade,
11... Ram, 13... Movable upper blade, 35... Belt conveyor, 37... Conveyor frame, 53...
... Guide member, 55 ... Lifter, 57 ... Lifter table, 63 ... Ribbon switch.

Claims (1)

[Scope of utility model registration request] A lifter 55 for accumulating the plate materials is provided on the rear side of the transport conveyor 35 that transports the plate materials sheared and separated by the shearing machine 1 in the rear direction, and is movable back and forth. A sheet material accumulating device for a shearing machine, which is provided so as to be able to freely enter the lower side of the conveyor 35 and to be movable up and down.
The lifter table 57 is placed at the predetermined height position on the rear side of the transport conveyor 35 so as to stop the lifter table 57 from rising when the lifter table 57 has entered the lower side of the transport conveyor 35 and has risen to a predetermined height. Sensor 6 detects that the
3. A plate material accumulating device for a shearing machine, characterized by comprising: 3.