SU1449202A1 - Arrangement for forming parts from elongated material - Google Patents

Abstract

The invention relates to cold metal forming and can be used to feed a long material into a die mounted on a press. The purpose of the invention is to increase the reliability of work. Parts are stamped from a strip or tape material in the stamp. The die matrix is fixed in the working area of the press. The material is fed into the die by a pushing pair of feed rolls. The top feed roll of this pair is associated with a lifting drive. A first material presence sensor is mounted behind the pushing pair of feed rolls and is electrically connected to the lift drive of the push roll. For the working area of the stamp in the course of the feed material has a second sensor of the material, electrically connected to the drive of the press. The second sensor is installed from the working area of the stamp in the course of feeding the material at a distance that is a multiple of the feeding step, and is additionally electrically connected to the drive of rotation of the lower feed rolls. For the press in the course of supplying the material is mounted on a pair of feed rolls. Behind it is installed a third material presence sensor, electrically connected to the lifting drives of the upper feed roll of the carrying pair and the pushing pair. A fourth sensor is installed in front of the machining area, connected to a rotational drive and a mechanism for feeding the material into the pushing pair of feed rolls. A fifth sensor connected to the rotation drive, 1 slug, is connected with the crank shaft to the press frame with the crank shaft. with in (L O GO o to

Description

The invention of oioids for cold metal processing with pressure and can be used for stamping parts from strip and band material.

The purpose of the invention is to improve reliability.

The drawing shows a device for stamping parts from a long material.

The device contains a press 1, having a crank shaft 2, a cutting die containing the lower section 4 mounted on the table 5 of the press 1, a cutting punch 6 mounted on the slider 3, the die 7 mounted on. 4, the puller 8 mounted on matrix 7. Material 9 (strip or tape) is fed into the gap between

the puller 8 and the die 7. On the bed 10 of the press 1, a sensor II is mounted, which interacts with a flag 12 fixed on the crank shaft 2. Before the press 1 during the feed of the material 9, the pushing feed rollers 13 are fitted with a drive

14 lifting the upper feed roll

15 and clamping it to the lower feed roll 16. For the press 1, as the material is being fed 9, there are installed lean feed rolls 17 equipped with a drive 18 for lifting the upper feed roll 19 and pressing it to the lower feed roll 20, Lower feed rolls 16 and 20 The drives are rotationally driven (not shown).

Behind the pusher-feed rollers 13 and t, the needy feed rollers 17 during the material feed 9 are located sensors 21 and 22 of material availability, respectively.

The puller 8 is fixed to a sensor 23 located in front of the working area of the stamp formed by the cutting hole 24 made in the matrix 7 and behind the pushing feed rollers 13 and the sensor 25. The latter is located behind the working area of the stamp in the course of feeding the material 9 formed by the cutting hole 24 matrix 7 at a distance that is a multiple of the feed pitch from the die working zone.

The sensor 23 is located on the sensor. 25 at a distance equal to the sum of the feed pitch and the magnitude of the remainder of dividing the length L of the material 9 by the number n cut of the parts 26, i.e. a distance equal to the sum

feed step, the sum of the length (width) of the jumpers 27 between the cut parts 26 n of the maximum tolerance for the size along the length L of the feed material, measured in the direction opposite to the feed direction.

The sensor 21 is connected to a lift drive 14, a sensor 11 is connected to a rotation drive (not shown), a sensor 23 is connected to a rotation drive, and a material feed mechanism (not shown) to the rolls 15 and 16. The sensor 25 is connected to a press drive (not shown) and with rotational drive. The sensor 22 is connected to the actuators 18 and 14 lifting.

The device works as follows.

The feed mechanism feeds material 9 into the gap between the vagina 15 and 16. Material 9 acts on sensor 21, which sends a signal to lift drive 14 on onycKaime roll 15. Material 9 is fed and stamped to sensor 25, which gives a signal to turn on press drive 1 and stopping the feed o After cutting a part (not shown) from material 9, flag 12 acts on sensor 11, which gives a signal to feed the material. When the strip is moved, the jumper after the cut part comes to sensor 25, the material acts on the last one, which gives the command press Su to cut the next part, and the cycle repeats.

When approaching the beginning of the strip to the sensor 22 and the effect of the material on the sensor, it gives the command to turn on the pull rolls 17 and turn off the push rolls 13.

When the end of the strip leaves the zone of influence of the material on the sensor 23, it gives a command to remove the waste mesh (not shown) from the pulling rolls 17 and feed the subsequent strip to the pushing rolls, 13,

Claims (1)

Invention Formula A device for stamping parts from a long material containing a press, a stamp mounted on a press, pushing and pulling a pair of feed rolls located on both sides of the press, drive —turning of the lower feed rolls and lifting drives of the upper feed rolls Tol1B