JPS5840985Y2 - Blank supply line - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a blank supply line in a transfer press.

Conventionally, in transfer presses, blanks were only fed intermittently in accordance with the transfer motion, but if a continuously driven device was installed in the feed line, blanks could not be fed. In the case of a feed line that feeds blanks intermittently, if the press is operated at high speed, the stop time at both ends of the intermittent feed motion will be shortened, making the delivery of blanks unstable, so the press will have to run at a low speed. Productivity was poor because only continuous or intermittent operation could be performed.

The present invention aims to eliminate this drawback and provide a blank material supply line that can continuously supply blanks in a material supply device of a transfer press in accordance with the transfer motion of the press.

To explain the line drawing of one embodiment of the present invention,
As shown in Figure 1, this line consists of a vacuum pickup section 1, a group of magnetic rollers 3 for putting the material into the blank cleaning and oiling device 2, and a press 1 that conveys the material coming out of the blank cleaning and oiling device 2. It consists of a group 4 of magnetic rollers for the purpose of

The magnetic roller used for the inland water line is as shown in Figures 1 and 1c, the magnetic roller 5 is rotatably fitted onto a shaft 6, and guided on both sides by steel plate rings 7 fixed to the shaft 6 with keys 8. The shaft 6 is restrained from moving in the axial direction by being attracted to the shaft 6 by the magnetic force of the magnet roller 5.
It is designed to rotate with the

Therefore, when the magnet roller 5 rotates and feeds the blank material 10 attracted to its outer periphery, if the blank material 10 comes into contact with, for example, the stopper 9 and stops, the shaft 6 will stop while slipping between the shaft 6 and the magnet roller 5. It continues to rotate without any problems.

The vacuum pickup section 1 uses a conventional vacuum pickup, 2-station blank loading, and an automatic reciprocating trolley type, and picks up the material one by one according to the SPM of the press and adsorbs it to the group of magnetic rollers 3 at the top. .

The groups of magnet rollers 3 and 4 before and after the blank cleaning and oiling device 2 are driven by a motor (
(not shown) is driven by a chain.

This motor is electrically linked to the main motor of the press machine and drives the line by continuous rotation in accordance with the operating speed of the press machine.

Also, the blanks coming out of the blank cleaning and oiling device 2 are
A two-sheet detection device 11 (FIG. 2 a, b) at the entrance of the rear magnet roller group 4 detects whether there is only one blank.

The blank material, which has been confirmed to be one sheet, is carried to the press center C21 by the magnetic rollers of the magnetic roller group 4 and hits the fixed position stopper 12 (Fig. 3 a).This is confirmed by the fixed position stopper 12. A detection switch 13 is installed to detect the blank material, and the blank material that has hit the fixed position stopper 12 is released from the magnetic roller by the material push-off cylinder 14 (Fig. 4 a, b, c) and placed at the bottom. Material pedestal 1
5 (Figure 1) Fall while being guided upwards.

As shown in FIG. 5, the fixed position stopper 12 can be adjusted in position in the feeding direction according to the shape of the blank material.

The feed bar 17 of the press picks up the material on the material pedestal 15 and feeds it into the press.

In addition, when the two-sheet detection device 11 detects that there is not one blank, the signal causes the fixed position stopper 1 to be activated.
2. By raising the blank material to the material holder 1 in the fixed position
5, but is carried as it is on the rear side 1 and stacked as a button on a pedestal 16 (FIG. 5) at the end of the line.

To give an example of the case of this line and explain it according to the press timing, as shown in Figure 1, there are 32
The number of strokes per minute (hereinafter referred to as SPM) of the 05m press machine is 15 to 30, and the size of the blank is 300 to 650 stations in width in the feed direction.

There are three timings of the press machine as shown in FIG.

Since the maximum press SPM is 30, it makes one revolution in 2 seconds.

32051 from vacuum center to press center l
Since there is 1 Ijl, if four blanks are inserted during this time, the blanks will be transported 3205 m in 6 seconds, so the feeding speed will be 32.05 m/wheel.

At this feeding speed, it moves 1068 m in 2 seconds until the second sheet of material is sucked up.

``Then, in the case of the maximum blank, the distance between the first and second blank materials will be 4 i 8 m.

When the line feed speed is set to 33rn7yxin and linked with the main motor of the press, when the vacuum feeder is set at a crank angle of 2400 to 300 degrees, the press machine starts from the 3rd stroke and then the 4th stroke. Sometimes the blank material has a crank angle of 240° to 300°.
It is dropped onto the fixed position pedestal 15 between 1 and 2 degrees, and then advanced to press work.

In addition, when the press machine is stopped, the line does not stop, and the three blanks inserted between the lines are transported by the rear housing by moving the fixed position stopper 12 in the same way as when two sheets are detected. 1.

According to the present invention, the feed line of the transfer press could only perform intermittent feeding in the past, but in the present invention, the blank material can be fed continuously, but even if the blank material is temporarily stopped at any arbitrary point, there will be no problem. Since it uses a magnetic roll feeding mechanism that is unlike any other, it is possible to perform continuous operation and intermittent feeding operation in accordance with the transfer motion.

Since the blanks are not sent one by one, the SPM of the press machine is improved and productivity is increased.

[Brief explanation of the drawing]

Figure 1a is an explanatory diagram of the line of one embodiment of the present invention;
The figure is an explanatory diagram of the magnetic roller used in the present invention, Figure 1C is a side view of the first figure, and Figure 2a is the 2nd view of the device.
Detailed view of the sheet detection device, Fig. 2 is a view taken from arrow A in Fig. 2a,
Figure 3a is I of Figure 5 showing the fixed position stopper of the device.
-1 sectional view, Figure 3 is a BB sectional view of Figure 3a, Figure 4
Figure a is a sectional view taken along the line IV-■ in Figure 5 showing the material thrusting cylinder of this device, Figure 4 is a view taken along arrow C in Figure 4 a, and
Figure C is a sectional view taken along line DD in Figure 4a, Figure 5 is an enlarged plan view of the rear magnet roller group, Figure 6 is a view taken in the direction of arrow E in Figure 5, and Figure 7 is a timing diagram of the press. It is. 1 is a vacuum pickup section, 2 is a blank cleaning and oiling device, 3 is a group of magnetic rollers, 4 is a group of magnetic rollers, 5 is a magnetic roller 6 is a shaft, 7 is a steel plate ring, 8 is a key, 9 is a stopper, 10 is a blank Material, 1
1 is a two-sheet detection device, 12 is a fixed position stopper, 13 is a fixed position stop confirmation detection switch, 14 is a material push-off cylinder, 15 is a material receiving stand, 16 is a receiving stand, 17 is a feed bar, and 18 is a press.

Claims (1)

[Scope of utility model registration request] In the blank material supply line that is attached to the transfer press and supplies blank materials to the feed bar, a vacuum pickup section that synchronizes with the movement of the feed bar is installed at the entrance of the line. A group of magnet rollers that are continuously rotated are provided at the side surface 1 of the roller group, and a two-sheet detection device is provided to detect when two blanks are sent to a midway position of the group of rollers. When the two-sheet detection device detects the position where the blank material is passed to the feed bar, a fixed position stopper that is submerged from the blank material feed line of the group of rollers and normally projects on the feed line, and the fixed position stopper are stopped. A material drop-off cylinder for dropping the dropped blank material, and a material holder for receiving the blank material dropped by the cylinder and passing it to a feed bar, and the magnetic roller is rotatably attached to the shaft thereof, and A blank material supply line O characterized in that the blank material supply line O is characterized in that it fits while being restrained in the direction and is attracted to the shaft by its magnetic force and generates rotational force.