CS243907B1 - Clipping Stacking Equipment - Google Patents

Abstract

The invention relates to a device for stacking blanks, mainly rotor and stator sheets, and solves a method of stacking blanks without using a conveyor slide. This is achieved by stacking blanks over split pins on spring-loaded rails that are above the conveyor level and when the lower parts of the pins are sucked out of the packages, they are pulled below the conveyor level before the lower position of the distal parts of the pins, so that the packages land on the conveyor that takes them out of the stacking space. Further use of the device is possible a) for stacking other blanks, for example transformer sheets, or other blanks of mass production.

Description

(54) Stacking equipment

2

The present invention relates to a device for stacking blanks, mainly rotor and stator sheets, and to a method for stacking blanks without the use of a transport slider.

This is accomplished by stacking the blanks through the split mandrels onto the suspension rails which are above the conveyor level and, when vacuuming the lower portions of the mandrels from the packets, are lowered below the conveyor level by the position of the distal portions of the mandrels. .

Further use of the device is also possible for stacking other clippings, for example transformer sheets, or other clippings of mass production.

BACKGROUND OF THE INVENTION The present invention relates to a device for stacking blanks, in particular rotor and stator skins, manufactured in a progressive manner, wherein the blanks are stacked on stacking mandrels and carried out of the stacking space by a conveyor.

A similar device is known from DE 26 05 983. B2, where the clippings are stacked on a stacking table by means of vertical split mandrels and after the desired height of the distal part of the mandrels has fallen below the tunnel level, and the sewn clippings are pushed onto the conveyor by means of a transport slider. After the slider has been moved back to its starting position and the lower parts of the mandrels are extended.

The disadvantage of this solution is that the cycle time of returning the lower parts of the mandrels to the upper position is prolonged and at the same time a transport slider is required. Such a device is relatively complex and thus expensive in production.

The above drawbacks are overcome by the inventive stacking punching device of the invention, which comprises rails positioned above the level of a conveyor overlapping the working space of the machine, the rails being mounted on rods movable vertically in the rack, sprung springs and provided with stops which are in the lower dead position of the mandrel holder in contact with the stops on the mandrel holder, whereby the strips are kept below the conveyor level during removal of the stitched rotor and stator peelings from the stacking space, and.

This solution shortens the cycle time of the lower parts of the mandrels to the upper position, while at the same time eliminating the need to use a transport slider. This simplifies the entire device.

An example of an embodiment of the device according to the invention is shown in the attached figure, which represents an axial section of the cutting table and a view of the stacking device.

The stand 1 of the stacking device is slidably mounted on a frame 2 on which the conveyor 3 is supported. In the stand 1 is a sliding support 4 of the spindles which is connected to the hydraulic cylinder 5 in a vertical direction. 7. On the stand 1, retaining strips 9 are mounted on the springs 8.

The stacker operates as follows:

In the upper position of the mandrel holder 4, the lower portions of the stacking mandrels 6, 7 are connected to the upper portions of the contraction mandrels 10, 11.

The sheared rotor plates 12 and stator plates 13 fall over the stacking pins onto the bars 9. When the desired packet height has been reached, the upper parts of the pins 10, 11 are captured by catchers 14 and lowered parts of the pins 6 are triggered by a hydraulic cylinder 5. and the stator plates 13 are held by rails 9 above the level of the conveyor 3. Before reaching the lower dead position, the mandrel holder 4 pushes the stops 15a and the pull rods 15 downwards, thereby pulling the rails 9 below the conveyor level 3.

As a result, the packets of the rotor blades 12 and the stator blades 13 engage the conveyor 3 which takes them out of the stacking space. Upon leaving the stacking space, the mandrel holder 4 with the lower portions of the mandrels 6, 7 is raised and joined, the upper portions of the mandrels 10, 11 and the bars 9 are lifted by means of springs inwards at the conveyor level. 11, the rotor skins 12 and the stator skins 13 are stacked onto the bars 9.

The apparatus according to the invention can also be used for stacking other clippings, for example transformer peelings or other sheet metal parts of mass production.

Claims (1)

SUBJECT A device for stacking scraps, in particular rotor and stator peelings, comprising in the stand displaceably disposed upper parts of the spindles and lower parts of the spindles to which the gripper is attached, and a spindle holder, above it is a chain conveyor for removing characterized in that on the stand (1), there are mounted RESTRAINTS (9) located above the level of the conveyor (3), the position of which overlaps the working space, the strips (9) being mounted on draw bars (15) sliding vertically in the stand ( 1), sprung by springs (8) and provided with stops (15a) which are in contact with the stops (4a) in the lower dead position of the mandrel holder (4).