DD272054A1 - DEVICE FOR VERTICALLY STACKING PREFERABLY RESEARCHED WORKPIECES - Google Patents

Abstract

The invention relates to a device for vertically stacking preferably formed workpieces, which occupy a distance from one another in the stack and are guided on the underside of the stack. At each vertical frame member at least one lifting bar is arranged vertically guided, is attached to the at least one row of the same distance from each other pivotally mounted lifting pawls on each frame member at least one row is also arranged at the same distance to each other pivotally mounted spacing pawls. The number of lifting pawls in a row corresponds to the number of distance pawl of a row and the Hubendlagen the lifting pawls are offset from the distance pawls. Fig. 1

Description

J ^: erzu 4 pages drawings

Field of application of the invention

The invention relates to a device for vertical stacking of preferably formed workpieces, which are in the stack at a distance einnehmon einnehmon and are supplied, for example, after processing in a machine tool at the bottom de ·, stack.

Characteristic of the known state of the art

In known stacking devices for the vertical stacking of workpieces with external orientation, such. B. by WerkstikkauCenform adapted stacking channels according to DD-PS 230704, the workpieces are directly adjacent to each other, so that a lateral feeds on the bottom of the stack only with suitable workpiece shapes, ie in particular flat flat workpieces, is possible. Hollow formed sheet metal workpieces are not suitable for stacking with such devices. With a device according to DD 155304 also flat and flat workpieces are stacked from bottom to top. Since each individual workpiece is pressed by a plunger perpendicular to the top of the stack, on the bottom of the stack opposite pivoting pawls are mounted on frame members that their abutment surfaces lie in an end position within the outer contour of the workpiece. This is to prevent falling back of the workpieces. The direct horizontal feeding into or out of the stack of hollow formed workpieces is not possible with this device.

Object of the invention

The aim of the invention is a rational discharge, stacking and transfer of preferably formed workpieces without manual intervention.

Explanation of the essence of the invention

The invention has for its object to provide a device for vertical stacking preferably formed workpieces in which the horizontally added and / or diverted workpieces do not touch.

The object is achieved by at least one lifting bar is arranged vertically guided on each frame element. At each lifting bar at least one row of the same distance from one another pivotally mounted lifting pawls is mounted and at each frame element at least one row is also arranged at the same distance from one another pivotally mounted spacing pawls.

The number of pawls diner series corresponds to the number of distance pawls of a row and the Hubendlagen the lifting pawls are offset from the distance pawls. In an embodiment of the invention, the lifting pawls on the lifting bar and the spacing pawls on the frame element can each be arranged alternately on parallel surfaces.

With the device according to the invention, both formed workpieces and workpieces with touch-sensitive surfaces can be stacked without touching each other.

The direct horizontal feed of formed workpieces on the underside of the stack is possible for the first time compared with the prior art. On the other hand, the workpieces can also be fed vertically from below the device. In addition to the horizontal removal of individual workpieces in any position, the device also allows the removal of several workpieces in the predetermined distance from the stacking device to each other both in the vertical and in the horizontal direction of the stack top.

The invention will be explained in more detail using the example of a device for stacking deep-drawn workpieces with a distance between them. The drawings show:

1 shows a longitudinal section through the device according to the invention for stacking Fig. 2: section A-A through the device Fig. 3: Position of the lifting pawls with the workpieces at the Vertikalbowegung up shortly before reaching the top stroke end position Fig. 4: Position of Hubklinkon with the workpieces in the upper stroke end position

Fig. 5: Position of the lifting pawls and the distance pawls mii the workpieces at the beginning of the vertical movement down Fig. 6: gripper with the held at a distance workpieces

The device according to the invention consists of a frame 1 and the frame elements 2, wherein in Fig. 1 only one Gestellelament 2 is shown. On the frame member 2 are the pivotable front and rear at equal intervals a Spacing latches 9; 10 arranged. The guided in the frame element 2 lifting bar 6 leads to the at her at equal intervals

a arranged front and rear Kubklinken 7; 8, the vertical movement for stacking the workpieces 12 from.

The pivotally mounted pawls 7 to 10 are held by springs in an end position so that their upward

arranged abutment surfaces 13 are located within the workpiece outer contour.

To remove the stacked workpieces 12, a gripper 11 Fig.6 is required, with the aid of the distance a of Workpieces 12 can be maintained during removal. For this purpose, the frame members 2 are arranged so that the Gripper 11 with workpieces 12 can pass horizontally between them. The stacking of the workpieces 12 is done in the manner described below. On a roller chain 4 drivers 5 are attached. The roller chain 4 is with the drivers 5 on a guide rail. 3

moves, 'wherein the workpieces 12 are fed from the drivers 5 of the stacking device. The roller chain 4 remains

stand when a workpiece 12 is in the stack area. In this case, the guide bar 3 with the roller chain 4 and the

Drivers 5 arranged at a height that d ^! ) Workpieces 12 are above the lowest lifting pawls 7. Due to the vertical movement of the lifting bars 6 to obon the lying on the lifting pawls 7 workpiece 12 is upwards

lifted. In this case, the workpiece 12 pivots the spacing pawls 9 out of the region of its outer contour in the direction of the other

End position (according to FIG. 3 to the left). Is the workpiece 12 passes during the vertical movement up over the distance pawls 9,

so they turn back to their original position. In the upper stroke end position is shown in FIG. 4, the lifting pawl 7 with the

Workpiece 12 on the spacer pawl 9. Now, the lifting bars 6 with the lifting pawls 7; 8 and on it Move workpieces 12 vertically down until the workpieces 12 on the abutment surfaces 13 of the spacing pawls 9; 10

rest. In the further Vertikalbr.wegung the lifting bars 6 down the lifting pawls 7; 8 when passing to the

Workpieces 12 on the Abstardsklinken 9; 10, pivoted to their other end position (as shown in FIG. 5 to the left). After this

the lifting pawls 7; After they have slipped past the works' backs 12, they swivel back to their original position.

After completion of the Vertikalbowegung the Hubleisten down the lowest distance pawl λ 9 are ready for recording

a new workpiece 12.

Claims (2)

1. An apparatus for vertically stacking preferably formed workpieces, which occupy a distance from one another in the stack and are fed to the underside of the stack, with outside of the workpiece outer contour arranged vertical frame members and pivotally mounted pawls whose abutment surfaces are in an end position within the workpiece outer contour are located, characterized in that at each frame element (2) at least one lifting bar (6) is arranged vertically guided on the at least one row of at the same distance (a) pivotally mounted to each other lifting pawls (7; 8) is attached to each frame element (2) at least one row also at the same distance (a) pivotally mounted to each other spaced latches (9; 10) is arranged, wherein the number of Hubklinken (7; 8) of a number of the number of clearance pawls (9; 10) corresponds to a row and the Hubendlagen the lifting pawls (7; 8) offset from the distance pawls (9; 10) are located. 2. Apparatus according to claim 1, characterized in that the lifting pawls (7; 8) on the lifting bar (6) and the spacing pawls (9; 10) on the frame element (2) are each mutually arranged on parallel surfaces.