JPH0740651U - 2 blanks feeding separation line - Google Patents

Abstract

(57) [Summary] [Purpose] If two blanks to be supplied to a press machine, etc. are detected during feeding, it is possible to supply them separately. [Structure] A slide table (7) that enters and retracts from a transfer position (B) to a destack position (A) below a blank material (4) taken out by a destack cylinder (2) of a blank material supply device (1). ) Is provided, the slide table (7) is mounted with the blank material (4), and the number detector (8) is provided on the way back, and the destack cylinder (2) and the slide table (7) are detected when two sheets are detected. While resting for one cycle, the electromagnetic magnet (9) provided on the lower surface of the slide table (7) is excited, and two sheets are separated by the transport operation of the transport robot (11). When two sheets fail to be separated and both are picked up by the transfer robot (11),
A blank material presence / absence detector (10) provided on the lower surface of the slide table (7) detects and stops the line.

Description

[Detailed description of the device]

[0001]

[Industrial application] Blanks piled up in a press etc. should be supplied one by one. When two or more blanks were supplied at one time due to defective separation of blanks, the blanks detected were two or more blanks. The present invention relates to a two-sheet blank feed / separation line capable of efficiently processing materials.

[0002]

2. Description of the Related Art Conventionally, in a line in which stacked blanks are supplied to a processing machine such as a press machine to perform work, when it is detected that two blanks are simultaneously fed by a device for supplying blanks, (1 ) It is known that the line is stopped by this detection signal and the operator intervenes to process it, and (2) this signal discharges the two blanks fed and the processing machine such as a press machine stops for one cycle. Has been.

[0003]

The above-mentioned conventional device (1) stops the entire line every time it detects the feeding of two sheets (including the case of two or more sheets). There is a lot of waste, and productivity drops significantly. When the device of (2) detects two sheets, the blank material is discharged at the next stage, the processing machine such as the press machine is stopped for one cycle, and the blank material supply device supplies the next blank material. Get up and running. Although it is slightly improved compared to the device of (1), it requires a stage for discharging the blank material, and also requires man-hours for processing the discharged blank material, which cannot be reused due to scratches on the blank material generated during discharge. There are cases.

The object of the present invention is to eliminate these drawbacks, and it is possible to separate and supply the two blank materials detected, without stopping the line temporarily, and for one cycle of a processing machine such as a press machine. The purpose is to provide a blank material feeder that can improve the operation rate without any interruption.

[0005]

The structure of the present invention is such that the blank material is placed on the upper surface between the stack position of the blank material supply device and the delivery position for supplying the blank material to the press machine, etc. It consists of a blank material supply device with a slide table and a blank material conveyor device for processing machines such as press machines. A number detector that is fixed between the destacking position and the passing position of the blank material feeding device and that detects the number of blank materials placed on the slide table and sent. It is equipped with an electromagnetic magnet that attracts the blank material placed on the table by the signal of the two-sheet detection of the sheet number detector, and a blank material presence / absence detector that is fixed to the slide table and that detects the presence or absence of the blank material on the upper surface. The sheet number detector suspends the operation of the blank material feeding device by the occasional two-sheet detection signal, and also attracts the blank material by the electromagnetic magnet, and the blank material transporting device of the processing machine such as the press machine adsorbs the blank material. Take one blank material into the processing machine, check the blank material "existence" signal with the blank material presence detector, and work. Then, the electromagnetic magnet is cut off, and the remaining blank material is taken into the processing machine by the blank material conveying device, and at the same time, the blank material feeding device is restarted to perform the linked operation. When the signal for the blank material is "Yes", the line is stopped and the operator intervenes for processing. Similarly, when three or more sheets, which are rarely detected by the sheet number detector, are detected, the operator intervenes and processes them.

[0006]

[Function] When the two-sheet number detector detects two sheets, the electromagnetic magnet is excited to adsorb the blank material on the slide table, and when the blank material is delivered to the next press machine side, etc., the two sheets are separated and the upper one Even if two sheets are detected, the destack cylinder and slide table are paused for one cycle, and the next blank sheet is passed, so that the line is not stopped even when two sheets are detected. Also, if two blanks are unsuccessfully separated when handing over the blanks, and if two blanks are passed together, the blank material presence / absence detector detects "nothing" in the blanks and stops the line, preventing processing failures on the line. it can.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention is shown in FIGS. As shown in FIG. 1, the blank material supply device (1) is provided with a destack cylinder (2) in the upper portion, and the blank material (4) loaded on the carriage (3) is loaded in the lower portion. The blank material (4) on the carriage (3) is pushed up by a lifter (not shown) to a fixed height between the upper separation floaters (5). The magnetically separated blank material (4) of the separation floater (5) is adsorbed by the adsorbing tool (6) that moves up and down by the piston rod of the destack cylinder (2), and is taken out one by one from the top to the upper limit. Be lifted. The figure shows that state. Between the blank material (4) sucked by the suction tool (6) at the upper limit and the separation floater (5), there is provided a slide table (7) which enters and retracts in the feeding direction. When the slide table (7) enters the lower position of the destack cylinder (2), that is, the destack position (A), the suction tool (6) releases the blank material (4) by suction and the blank material (4). On the slide table (7). The slide table (7) on which the blank material (4) is placed is retracted to the delivery position (B) by the driving means described later.

The number of blanks (4) placed on the slide table (7) is detected above the middle portion of the slide table (7) from the destack position (A) to the transfer position (B). A detector (8) is provided. The number detector (8) is, for example, an actuating pressure transformer, which outputs the ascending / descending displacement of the detector as an ascending / descending voltage, and the blank material (4 2) detection signal and 3 detection signal can be transmitted. If necessary, a four-sheet detection signal can be transmitted. The voltage level can be adjusted according to the thickness of the blank (4) to accommodate blanks (4) of different thickness. On the back surface of the slide table (7), an electromagnetic magnet (9) that can be excited and attracted when there are two or more blank materials (4) placed on the surface, or in some cases, open on the front surface side, ON, A vacuum cup that can be turned off, that is, a suction device is provided, and a blank material presence / absence detector (10), for example, a limit switch is provided.

The blank material presence / absence detector (10) is excited when the sheet number detector (8) detects that there are two blank materials (4) on the slide table (7), and the two blanks are not present at the same time. A line stop signal is sent when it becomes. When the two-sheet detection signal is transmitted, the number-of-sheets detector (8) pauses the destack cylinder (2) for descending and raising and the slide table (7) for entering and retracting for one cycle. The line is stopped when the sheet detection signal is transmitted. The line continues to operate with the single-sheet detection signal. The blank material (4) on the slide table (7) that has returned to the delivery position (B) is adsorbed by the transfer robot (11) that transfers the blank material (4) to a press machine or the like. At this time, when the number of blank materials (4) is two, they are separated by the attraction of the electromagnetic magnet (9) and the transfer robot (11), and they are transferred one by one from the top. When the separation fails and the transfer robot (11) makes a suction error, the transfer robot (11) sends a suction error signal and the line stops.

As shown in FIGS. 2 and 3, the slide table (7) is guided on both sides in the feeding direction by rollers (14) sandwiching a guide bar (12) on one side and a guide plate (13) on the other side from above and below. It is movable in the feed direction. The piston rod of the drive cylinder (15) provided with the feed direction parallel to the guide bar (12) is connected to the slide table (7), and the slide table (7) is received at the destack position (A). Move forward and backward with the transfer position (B).

[0011]

As is apparent from the above description, the present invention has the following effects. 1) Even when two blanks are fed, the line processing continues and the line operating rate improves. 2) The two blanks fed have an electromagnetic magnet on the slide table, so the two can be separated using the operation of the transfer robot, and the structure can be simplified. 3) Since the slide table is equipped with a blank material presence / absence detector, the line can be stopped even if it fails to separate the two pieces on the slide table, and a processing error occurs in the line. There is no. 4) In the case of detecting three plates, it is possible to separate three plates and supply blanks one by one to the line by developing the idea of the present invention as necessary.

[Brief description of drawings]

FIG. 1 shows a blank material feeding device according to an embodiment of FIG.
Front view of the main part along the line

FIG. 2 is a plan view of a main part of a blank material feeder according to an embodiment.

3 is an arrow view of FIG.

[Explanation of symbols]

1 is a blank material feeder, 2 is a destack cylinder,
3 is a dolly, 4 is a blank material, 5 is a separating floater, 6 is a suction tool, 7 is a slide table, 8 is a sheet number detector, 9 is an electromagnetic magnet, 10 is a blank material presence / absence detector, 11 is a transfer robot, and 12 is A guide bar, 13 is a guide plate, 14 is a roller, 15 is a drive cylinder, A is a destack position, and B is a delivery position.

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location B65H 3/08 348 8712-3F 3/46 Z 8712-3F 3/60 310 8712-3F

Claims (2)

[Scope of utility model registration request] 1. At a destack position of a blank material supply device, the stacked blank materials are taken out one by one by a vacuum cup of a destack cylinder and lifted to advance to a destack position to receive the blank material on the upper surface of a slide table and press it. In a blank material feeding device having the slide table retracted to a position for delivering a blank material to a transporting device such as a machine, the blank material provided on the upper surface of the slide table is provided between the destack position and the delivery position. A sheet number detector for detecting the number of sheets, a blank material attracting electromagnetic magnet provided on the slide table and excited by two or more detection signals of the sheet number detector, and a contact provided on the back surface of the slide table. Make it appear on the upper surface of the slide table,
A blank material two-sheet feeding separation line, comprising a blank material presence / absence detector for detecting the presence / absence of a blank material, and delivering the blank material to the conveying device. 2. The blank material supply device and the processing machine such as a press machine are stopped by one cycle of the blank material supply device by one cycle of the two material detection signals of the number of paper detectors. The method according to claim 1, wherein the operation is stopped.
2 blanks feeding separation line described.