JP2539524Y2 - Conveyor height automatic adjustment device in deburring device - Google Patents

Description

[Detailed description of the invention]

[0001]

Industrial Applicability The present invention is mounted on a deburring device for removing burrs generated on a plate material by press working or the like, and can automatically adjust a conveyor height according to a plate material having a different thickness. The present invention relates to an automatic conveyor height adjusting device in a deburring device.

[0002]

2. Description of the Related Art Conventionally, for removing burrs generated on a plate material, a deburring device provided with a deburring wheel which rotates around an axis perpendicular to a feeding direction of the plate material has been used. Each time the thickness of the plate material changes, the operator operates the manual handle to raise and lower the conveyor, monitors the current value flowing to the drive motor of the deburring wheel, and determines the degree of deburring according to the thickness of the plate material. It was adjusted to the optimal conveyor height.

[0003]

By the way, such adjustment of the height of the conveyor relies on many years of experience and experience of the operator. Further, every time the sheet thickness of the product is different, it is necessary to readjust the height of the conveyor, and there is a problem that the adjustment time is too long and the actual working time is reduced. In addition, since the conveyor is manually moved up and down by a handle, there is a problem that it takes too much time to move the conveyor largely for replacement of a deburring wheel or the like.

An object of the present invention is to solve the above problems by automatically adjusting the height of the conveyor, requiring no skill, making the handling operation easy, and increasing the efficiency of wheel replacement and deburring. It is an object of the present invention to provide an automatic conveyor height adjusting device for a deburring device.

[0005]

SUMMARY OF THE INVENTION In view of the foregoing problems, the present invention provides a deburring wheel rotatably supported on an upper frame provided above a lower frame.
A deburring device comprising: a table supported by the lower frame so as to be vertically adjustable at a position below the deburring wheel; and a conveyor provided on the table for moving a plate material to a lower side of the deburring wheel. A conveyor height adjusting device for automatically moving the table up and down in a device for automatically adjusting the height of the table, and a plate material detecting device for detecting whether or not there is a plate material on the conveyor corresponding to the deburring wheel; A sensor, a conveyor lowering circuit for lowering the table once when a start switch is turned on, and raising the table on condition that the table is lowered once and the plate material detection sensor is in an ON state. Conveyor lifting circuit for detecting the current value of the motor driving the deburring wheel A relay for opening operation of the conveyor lifter circuit upon reaching a value is made comprises a.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view of a deburring apparatus according to the present invention. The deburring apparatus 1 includes a cylindrical deburring wheel 7 formed of an elastic member or the like and rotatably supported by the upper frame 5 of the C-shaped frame 3 and having an appropriate length and width, and a C-shaped frame. 3 lower frame 9
A belt conveyor 15 for transferring a plate material provided on a table 13 supported thereon via a conveyor elevating device 11, and a plate material pressing device for pressing the plate material transferred by the belt conveyor 15 from above ( (Not shown).

The conveyor height adjusting device of the present invention is mainly composed of plate detecting sensors 17A and 17B embedded in the table 13 for detecting the presence or absence of a plate, and a conveyor elevating motor 47 for driving the conveyor elevating device 11 up and down.
(FIG. 4) and two timers T1 and T2 housed in a meter relay 59 of an operation panel 49 (FIG. 5) and an electric box (not shown).

The plate detecting sensor, in this embodiment, the proximity switches 17A and 17B are provided with a deburring wheel 7 in FIG.
Are detected on the left and right sides of the table 13 one by one embedded on the table 13 and transported on the belt conveyor 15.

As shown in FIGS. 2 to 4, the conveyor lifting / lowering device 11 rotates sprockets 21 arranged at four target positions in front, rear, left and right directions of a table support 19 provided on the lower frame 9. The sprocket 21 is provided freely, and a chain 23 is hung around the sprocket 21, and guide nuts 25 each having an internal thread are provided, and the adjusting screw 27 is engaged.

The adjusting screw 27 has its lower end supported by the lower frame 9 so as to be vertically movable, and has its upper end detachably attached to the table 13 by means of a bolt 31 via a spacer 29. A worm wheel 35 is fixed to the outer periphery of a guide nut 33 that engages with one of the right and left front positions of the four adjusting screws 27.
A worm 39 provided on a worm shaft 37 which is rotatably supported by the worm shaft 37 is engaged. A sprocket 41 is fixed to the tip of the worm shaft 37 and is connected via a chain 43 to a sprocket 45 of a conveyor elevating motor 47 as a conveyor elevating device.

Therefore, by the rotation of the conveyor lifting motor 47, the worm 39 is rotated via the worm shaft 37,
The worm wheel 35 engaged with the worm 39 rotates. By the rotation of the worm wheel 35, the guide nut 33 and the sprocket 21 rotate integrally, and the other three sprockets 21 rotate at a constant speed via the chain 23. The screw 27 moves up and down in synchronization, and the table 13 can be raised or lowered in a horizontal state, and the belt conveyor 15 can be raised or lowered via the table 13.

As shown in FIG. 5, the operation panel 49 includes a start switch 51 for operating the deburring apparatus 1 and
Operation circuit switch 53, conveyor lifting lever switch 5
5, a total stop push button switch 57, a meter relay 59 which detects a current value of the wheel drive motor and cuts off the circuit when the current value reaches a set value, a conveyor speed setting device 61 and a display switch PL1 of a start switch 51, a conveyor up / down display lamp PL2. PL3, two plate material detection lamps PL4, PL5, etc., by the plate material detection sensors 17A and 17B are mounted. Further, a timer T1 for setting a descent time at the time of detecting the plate thickness and a timer T2 for holding a fixed time for detecting the plate thickness are mounted in an electric box (not shown).

FIG. 6 shows a sequence diagram of the automatic conveyor height adjusting device of the deburring device of the present embodiment, and the function of the circuit is shown on the right side. When the plate is placed at the designated position on the belt conveyor 15 and the start switch 51 of the start circuit is pressed to start the operation, if the plate detection sensors 17A and 17B on the table 13 do not detect the plate within a predetermined time, The automatic detection operation is invalid.

When the start switch 51 of the start circuit is pressed in the initial state, the belt conveyor 15 is moved in order to prevent the plate material from being carried in a state where the gap between the deburring wheel 7 and the belt conveyor 15 is equal to or less than the plate thickness. Supplies power to the conveyor lowering circuit for the time set by the timer T1 of the processing preparation setting circuit, and once lowers the table 13 to stop. Next, the lamp PL1 of the start switch 51 is turned on, and the driving of the belt conveyor 15 is started.

At this time, the plate material detecting sensors 17A, 17B
The presence of a sheet material is detected by this, the conveyor lifting circuit is energized, the belt conveyor 15 is raised by the conveyor elevating device 11, and when the deburring wheel 7 starts deburring the sheet material, a load is applied to a deburring drive motor (not shown). And the current value starts to rise. When the current value reaches the current value set by the meter relay 59, the current is supplied to the ascending stop circuit to stop the ascending of the belt conveyor 15.

In this manner, the optimal height of the belt conveyor 15 for deburring is set, and in this state, the deburring operation of the plate material is continuously performed. However, the height of the belt conveyor 15 is maintained unless the deburring of the second and subsequent sheets is reset by pressing the start switch 51.

During the detection of the conveyor height, the lever switch 55
Is activated, the automatic adjustment operation becomes invalid, and the automatic adjustment device 1 does not operate unless the deburring wheel 7 rotates.

The present invention is not limited to the above-described embodiment, but can be implemented in other embodiments by making appropriate design changes. For example, the plate detecting sensor may be mounted on a deburring wheel. On the other hand, the number of attachments may be increased so that detection is possible not only at the designated position on the belt conveyor 15 but also as a whole and anywhere.

[0020]

As can be understood from the above description of the embodiment, in short, the present invention provides a deburring wheel (8) rotatably supported by an upper frame (5) provided above a lower frame (9). 7), a table (13) supported by the lower frame (9) so as to be vertically adjustable at a position below the deburring wheel (7), and a plate material moved to a lower side of the deburring wheel (7). A conveyor elevating and lowering device for automatically moving the table (13) up and down in a deburring apparatus comprising a conveyor (15) provided on the table (13). A plate detection sensor (17A) for detecting whether or not a plate is present on the conveyor (15) corresponding to the deburring wheel (7); and a start switch (51). A conveyor lowering circuit for temporarily lowering the table (13) when the table is turned on; and a table lowering the table (13) once and the plate material detection sensor (17A) being in an ON state. (13) a conveyor raising circuit for raising the motor; and a relay (59) for detecting a current value of a motor driving the deburring wheel (7) and opening the conveyor raising circuit when the current reaches a set value. And is provided.

As is apparent from the above configuration, in the present invention, when the start switch 51 is turned ON, the table 13 provided with the conveyor 15 is lowered once, and then the table 13 is lowered and the sheet material detection sensor 17A The table 13 is raised under the condition that the table 13 is in the ON state, and the rise of the table 13 is stopped when the current value of the motor driving the deburring wheel 7 is detected and reaches a set value. is there.

That is, according to the present invention, when the start switch 51 is turned on, the table 13 is lowered and the gap between the deburring wheel 7 and the conveyor 15 is enlarged, so that when the gap is smaller than the thickness of the plate material. Therefore, the plate material is not forcibly sent, and safety can be improved.

Since the table 13 is raised on the condition that the table 13 is lowered and the plate material detection sensor 17A is in the ON state, the deburring wheel 7 may directly contact the conveyor 15. Table 13 is stopped when the detected value of the current value of the motor for driving the deburring wheel 7 reaches a set value, so that the clearance between the deburring wheel 7 and the conveyor 15 is increased. It can be automatically adjusted according to the thickness of the plate material, and the height of the conveyor is automatically adjusted.

[Brief description of the drawings]

FIG. 1 is a front view of a deburring apparatus in which the present invention is implemented.

FIG. 2 is a front view of the conveyor elevating device of FIG. 1;

FIG. 3 is a plan view of the conveyor elevating device of FIG. 1;

FIG. 4 is a side view of the conveyor elevating device of FIG. 1;

FIG. 5 is a front view of the operation panel of FIG. 1;

FIG. 6 is a sequence diagram of the automatic conveyor height adjusting device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deburring device 7 Deburring wheel 11 Conveyor elevating device 13 Table 15 Belt conveyor 17A, 17B Plate detection sensor 19 Table support table 47 Conveyor elevating motor 49 Operation panel 59 Relay

Claims (1)

(57) [Scope of request for utility model registration] 1. A deburring wheel (7) rotatably supported by an upper frame (5) provided above a lower frame (9), and the lower frame (7) at a position below the deburring wheel (7). 9) a table (13) supported so that the vertical position can be adjusted, and the table (13) for moving a plate material to a lower side of the deburring wheel (7).
In the automatic conveyor height adjusting device of the deburring device provided with the conveyor (15) provided in the conveyor, a conveyor lifting / lowering operating device for automatically moving the table (13) up and down, and the deburring wheel ( 7) a plate detection sensor (17A) for detecting whether or not there is a plate on the conveyor (15); and a start switch (5).
A conveyor lowering circuit for lowering the table (13) once when the table (1) is turned on;
3) is once lowered and the plate material detection sensor (1)
7A) when the current value of the motor for driving the deburring wheel (7) and the conveyor raising circuit for raising the table (13) are detected on condition that the ON state of the table (13) is reached. And a relay (59) for opening the conveyor lifting circuit.