JP2895638B2 - Arbitrary dimension positioning method for incoming work - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for positioning a work such as a box product in the left-right direction and centering the work on, for example, a bottom plate dimension of a box. The present invention relates to a method for positioning an arbitrary size of a carry-in work to be carried out in accordance with the above.

[0002]

2. Description of the Related Art Conventionally, a plate-like work, which has been carried in for the purpose of processing a box product or the like, is centered by determining a horizontal position while being carried out by a roller conveyor on a table and folding the next plate material. As a method of unloading according to the origin setting center of the front table of the bending machine, side gauges and pushers are provided on both sides of the work that are movable in the direction perpendicular to the transport direction, that is, in the left and right directions, and the position of the side gauge is first determined. After that, a method is known in which the work is pressed and clamped from both sides by a pusher to perform positioning in the left-right direction. Note that the positioning of the side gauge was performed based on the outer shape center of the work.

[0003]

The origin of a work is set in a front table of a plate material processing machine such as an ironing bending machine. Recently, a gauge is applied to a notch portion of a box work to improve accuracy. I have to.

For this reason, it has become necessary to carry in the work to the front table on the basis of the center with respect to the size of the bottom plate of the box.

[0005] However, the centering performed in the prior art has a problem that the work is slipped due to slippage when the work is conveyed by a roller conveyor because the work is sandwiched and pressed by a side gauge and a pusher. Was.

When centering is performed on the basis of the outer dimensions, if the developed work shape before bending for a box product is not symmetrical with respect to the bottom plate size of the box, the bottom plate size reference is used. There was a problem that centering was not possible.

In view of the above problems, an object of the present invention is to provide
For example, it is an object of the present invention to provide a method for positioning an incoming work at an arbitrary size that can perform centering based on an accurate box bottom size and does not cause difficulty in carrying.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a sheet processing machine which performs positioning of a carried plate-like work in a horizontal direction such as centering while carrying and unloading the work by a conveyor on a table. A method of carrying out to a front table, wherein one of guide members independently provided so as to be able to advance and retreat on both sides in the direction orthogonal to the traveling direction of the work is calculated based on the work size. When the work is pushed forward by the other guide member of the guide member, the other guide member is stopped by the work stop sensor so that the work is conveyed while leaving a slight side gap. ,
This is a method for positioning the incoming work with arbitrary dimensions.

[0009]

By adopting the method for positioning an incoming work at an arbitrary size according to the present invention, when a work is first loaded on a conveyor on a table and is carried in, the center of the bottom plate dimension is determined based on a pre-input, for example, a developed size of a box work. The side gauge (one guide member) moves from the standby position and stops by an amount calculated to match the centering center line of the table.

[0010] During this time, the work is conveyed to the rear of the table by a conveyor. When the rear end of the work (the front end in the transport direction) reaches near the rear end of the table, the work is decelerated and stopped by the conveyor.

Then, the pusher (the other guide member) pushes the work and moves in the direction of the side gauge. When the work reaches the sensitivity of the work stop sensor provided in the side gauge, the pusher is decelerated and stopped.

At this time, the position of the work stop sensor with respect to the guide surface is adjusted so that a slight side gap remains between the guide surface of the side gauge and the side of the work.

Next, the conveyor is operated, and the work is carried out to the front table of the plate processing machine in the next process.
At this time, the work is sandwiched between the side gauge and the pusher, but has a slight side gap as described above, so that it can be easily conveyed without any resistance.

Also, since the centering center line of the table is previously set to the center of the origin set of the front table of the sheet processing machine, the work is carried out by aligning the center line of the bottom plate with the center of the origin set of the front table of the plate processing machine. .

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

First, in FIG. 6, a known single-sheet pick-up device 3 is disposed in front of a table 1 for centering a work W according to the present embodiment. That is, the notched box developing material punched by the punch press is lifted one by one by a suction pad, and the work is conveyed to the table 1 using the built-in slat conveyor.

An apparatus and an operation method for operating the work W carried on the table 1 will be described later in detail, and here, the work W is simply centered with respect to the centering center line 5 of the table 1 based on the box bottom dimension. Then, it is carried out to the front table 9 of the ironing / bending machine (plate processing machine) 7 which is the next step.

In the front table 7, after the center of the box bottom dimension of the work W is centered on the center line 5, the center line 5 is changed to the origin setting center line 1 of the folding machine 7.
The work W is brought into the front table 9 while being adjusted to 1 and the work W can be easily and accurately set with the origin.

The work W is gripped by the clamper 13 and positioned by the manipulator 15, further conveyed to a known ironing and bending machine 7, and clamped by a top die on a bottom die to perform an iron bending. Thereafter, the work W is again gripped by the clamper 13 and returned by the manipulator 15 and then moved on the front table 9 to the next product accumulation device 17.
Conveyed to and carried out.

A product accumulating device 17 is also known, and its structure is similar to that of the above-described single-sheet collecting device 3, and the operation is reversed. That is, the work W (box product) that has been carried in is transported onto the apparatus by a slat conveyor, and then lifted by a suction pad.
Furthermore, they are stacked on the lower lifter.

As described above, the table 1 according to the present embodiment,
Since the consistent movement of the work W has been described through the single-sheet pick-up device 3 in the pre-process and the front table 9, the ironing and folding machine 7 and the product accumulating device 17 in the post-process, the table 1 of the present embodiment is The purpose is easy to understand.

Next, the structure of the table 1 will be described with reference to FIGS. 1, 2, 3 and 4.

First, in FIGS. 1 and 2, upper frames 21a and 21b provided on the upper left and right of the frame 19 of the table 1 assembled on the floor are arranged in the front-rear direction, respectively. Roller shafts 25a provided at left and right ends of a plurality of pipe rollers 23 extended in the left and right direction,
25b is rotatably supported.

An appropriate number of pressing idlers 27 are provided between the right roller shafts 25b so as to press a belt 35 described below against the right end of the pipe roller 23 from below. Further, as shown in FIG. 2, a belt 35 is wound together with a motor pulley 31 of a geared motor 29 mounted on the frame 19 and an appropriate number of deflection idlers 33 provided at appropriate positions. Note that a surface that horizontally connects the upper ends of the plurality of pipe rollers 23 arranged front and rear is a pass line P that conveys the work W.

According to the above configuration, when the gear motor 29 is rotated, the motor pulley 31 becomes a starting pulley and the belt 35 circulates. Therefore, the plurality of pipe rollers 23 are rotated via the diverting idler 33 and the pressing idler 27. Therefore, the work W placed on the pass line P is transported.

Next, a side gauge (one guide member)
The 37 and the pusher (the other guide member) 39 will be described. First, in FIG. 2, a horizontal frame 43 (43a, 43b) extending in the left-right direction is provided on an intermediate frame 41 fixed to the rear of the frame 19.

On the front and rear of the horizontal frame 43, two rails 45 extending in the left-right direction are provided. An LM guide (linear motion guide) 47 is provided on each of the two rails 45 so as to be slidable in the left-right direction, and is fixed to a beam member 49 extending in the front-rear direction. ing. However, the above L
The M guide 47 and the beam member 49 are configured to slide only in the left half range of the two rails 45 (the right half is a sliding range of a pusher described later).

A column-type bracket 51 is fixed to the front and rear of the beam member 49, and furthermore, an L-shaped guide 53 extending in the front-rear direction over the column-type bracket 51, and fixed to the L-type guide 53. A gauge plate 55 for slidingly guiding the work W back and forth is mounted so as to be adjustable in the left-right direction by bolts 57 as shown in FIGS. The gauge plate 55 has an L-shaped reinforcing agent 59
And the LM guide 47.

Now, in order to slide the side gauge 37 in the left-right direction, a geared servo mounted to be suspended substantially below the center of the front beam 43a running left and right of the horizontal frame 43 as shown in FIG. Motor pulley 6 of motor 61
3 and three idler pulleys 65 provided at appropriate positions of the front beam 43a.
Is wound.

A part of the timing belt 67 is connected to the beam member 49 via a connecting bracket 69. A rotary encoder 71 is mounted on the shaft of the idler pulley 65 located above the motor pulley 63.
Is installed.

With the above configuration, the geared servo motor 6
1 is rotated forward, the rotation is transmitted to the motor pulley 63 and the timing belt 67, and further the idler pulley 6
5. Since the rotation is transmitted to the beam member 49 via the connection bracket 69 while rotating the rotary encoder 71, the side gauge 37 is guided by the LM guide 47 and the two rails 45 to the direction of the centering center line 5 of the table 1. Moved to At this time, since the rotary encoder 71 is also rotating, the side gauge 37 can be accurately stopped at a desired position calculated by the control device.

Next, with respect to the structure and the driving device of the pusher 39, the only difference is that the mounting location is opposite to the side gauge 37, the type of driving electric power is different, and the rotary encoder 71 is not mounted. And since the other parts are exactly the same, parts of the same shape that perform the same function,
The description will be simplified using the same names as the side gauge 37 and its driving device.

That is, an LM guide 47 is provided on each of the two rails 45 so as to be slidable in the left-right direction, and is fixed to a beam member 73 extending in the front-rear direction. However, the LM guide 47 and the beam member 7
Numeral 3 slides only in the right half range of the two rails 45.

The column type bracket 51 is fixed before and after the beam member 73.
7, the description is omitted, except that the L-shaped guide 75 is used.
It is different from the pusher plate 77 that guides the work W while being fixed to the L-shaped reinforcing material 79. Then, the above-described component LM guide 47, beam member 7
3. The pusher 39 is composed of the column-type bracket 51, the L-shaped guide 75, the pusher plate 77, and the L-shaped reinforcing member 79.

In order to drive the pusher 39 to slide in the left-right direction, a brake attached to the rear frame 43b which runs right and left of the horizontal frame 43 in FIG. 1, FIG. 2 and FIG. A timing belt 67 is wound between a motor pulley 63 of the geared motor 81 and three idler pulleys 65 provided at appropriate positions on the rear beam 43b. A part of the timing belt 67 is connected to the beam member 77 via the connection bracket 69.

With the above configuration, when the geared motor 81 is rotated forward, the pusher 39 is guided by the LM guide 47 and the two rails 45 in the same manner as when the side gauge 37 is driven, so that the centering center line 5 of the table 1 is moved. Moved in the direction. Then, the work W is sandwiched between the gauge plate 55 of the side gauge 37 and the pusher plate 77 of the pusher 39 stopped at a desired position earlier and stopped with a small gap, for example, 2-3 mm. There is
This will be described later in connection with the sensor.

Next, the necessary control sensors will be described while explaining the operation from the time when the work W is carried into the table 1 until the work W is carried out.

First, in FIG. 1 and FIG. 2, the right end face of the work W has a pusher plate 77 of the pusher 39 at the standby position.
It is carried in along a loading reference line L slightly closer to the centering center line 5. In order to detect this carry-in, two carry-in photoelectric switches 83 are moved to the right side of the front of the table 1 via the sensor bracket to the upper right frame 21.
(In order to increase the reliability of the operation, two control sensors for the same purpose are all provided in each table 2).

As described in FIG. 5, when the photoelectric switch 83 detects the carry-in of the work W, all the pipe rollers 23 are rotated by the gear motor 29, and the work W
Is transported backward along the pass line P on the table 1. At the same time, the side gauge 37 is moved from the standby position to a desired position. Since the distance M from the left end of the work W to the center line of the box bottom is previously input to the control operation box 85 provided on the upper right rear end of the table 1, the movement distance D is calculated and determined there.

That is, the distance C between the gauge plate 55 of the side gauge 37 and the centering center line 5 of the table 1 is known, and the work W is sandwiched between the pusher plate 77 of the pusher 39 and the gauge plate 55. The small gap δ (for example, 2-3 mm) is also known.
It is calculated as D = C- (M + δ). Also, the box bottom width is B,
If the left notch width is H, the calculation can be performed as M = 1 / 2B + H. The calculated value is obtained from Table 1
Control relay box 8 provided below the left front of frame 19
7 is transmitted. The control relay box 87 controls a motor or the like related to high power.

Next, when the work W moves from the position (1) to the position (2) in FIG. 5, the upper right frame 21b
The work W is first decelerated by the rotation of the pipe roller 23 and then stopped by the two deceleration photoelectric switches 89 and the two stop photoelectric switches 91 mounted via the sensor bracket at the rear of the work W.

Since the gear motor 81 is normally rotated by this stop signal, the work W is pushed leftward by the pusher 39 and approaches the side gauge 37. Then, as shown in FIG. 4, the side gauge 37 is connected to a rear cantilever bracket fixed to the rear column type bracket 51 by a sensor bracket that can be adjusted in the left-right direction with a bolt and a long hole. Since the two deceleration photoelectric switches 93 arranged in front and rear are mounted, when the work W is sensed to move leftward, the leftward speed of the pusher 39 is reduced.

Further, the L-shaped guide 53 of the side gauge 37 is provided with two optical fiber type analog sensors (work stop sensors) 95 for stopping which are also arranged in the front-rear direction. The reflector 9 used in combination with this
7 are also provided above the L-shaped reinforcing member 59 at corresponding positions above the optical fiber type analog sensor via a sensor bracket. Therefore, when the work W reaches between the optical fiber type analog sensor 95 and the reflection plate 97, the pusher 39 is stopped by a slight deceleration. At this time, a slight gap δ is left between the left end of the work W and the gauge plate 55. The center line 5 of the box bottom dimension of the work W coincides with the centering center line of the table 1.

Next, when the stop of the pusher 39 is detected, the pipe roller 23 is rotated again.
Is conveyed and carried out with the center line of the bottom of the box aligned with the center line 11 of the origin setting of the front table 9 of the ironing folding machine 7.

At this time, since there is a small gap δ between the left end of the work W and the gauge plate 55, the work W
Is carried out smoothly without resistance.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.

For example, since the side gauges are calculated and calculated from the dimension data of the work W input in advance, not only the purpose of centering the box bottom dimension center line of the work W as in this embodiment, but also Obviously, any other lateral positioning can be accommodated.

[0048]

As will be understood from the above description of the embodiment, the amount of advance of one guide member (side gauge) from the standby position to the positioning position is calculated from the work dimensions inputted in advance. Even if the center line of the work to be centered is eccentric with respect to the outer shape, not only centering but also arbitrary positioning in the direction perpendicular to the work traveling direction is possible.

Further, the other guide member (pusher) is stopped by a work stop sensor provided on the one guide member while leaving a slight side gap, so that the centered work can be removed from the plate processing machine. When transported and unloaded to the front table by the conveyor, the transport and unloading is smoothly performed without resistance.

[Brief description of the drawings]

FIG. 1 is a plan view of a table according to an embodiment of the present invention.

FIG. 2 is a right side view showing a partial cross section in FIG. 1;

FIG. 3 is a view taken along an arrow line III-III in FIG. 1;

FIG. 4 is an arrow view along the line IV-IV in FIG. 1;

FIG. 5 is an operation explanatory diagram according to the present embodiment.

FIG. 6 is an explanatory diagram showing a relationship between the table and devices before and after the table according to the embodiment.

[Explanation of symbols]

Reference Signs List 1 Table 5 Centering center line 7 Ironing and bending machine (plate processing machine) 9 Front table 37 Side gauge (one guide member) 39 Pusher (the other guide member) 95 Optical fiber type analog sensor (work stop sensor) δ Slight Side gap

Claims (1)

(57) [Claims] 1. A method in which a carried plate-like work is positioned in a horizontal direction such as centering while being carried and carried out by a conveyor on a table, and a plate material is carried out to a front table of a processing machine. Of the guide members independently provided so as to be able to advance and retreat on both sides in the direction orthogonal to the direction,
When one guide member provided with a work stop sensor is advanced by a desired amount calculated from the work size, and the other guide member of the guide member pushes and holds the work, the other guide member is moved to the work position. A method for positioning an incoming work to an arbitrary size, wherein the work is stopped by a stop sensor and conveyed while leaving a slight side gap.