DE1894912U - DEVICE FOR WELDING A LID ON THE EDGE OF A PLASTIC VESSEL. - Google Patents

Description

_{2000 Hambu} , ₉ , _

Herbert Ave,
Hamburg-Stellingen, Wolffstrasse 4.

Device for welding a lid onto the hand of a plastic vessel.

The furnace relates to a device for welding on a cover made of plastic or with plastic is coated on the edge of a plastic vessel with the help of a at the lower end of a ram arranged heated welding tool, its acting as a welding jaw and corresponding to the I-shape of the vessel edge One bar presses the lid onto the edge of the vessel, which is on the hand of a recess of the vessel-accommodating [Disches der Device rests.

There are machines of this type known in which the welding tool in its uppermost position must have such a distance from the table that the vessel before welding int. the recess of the table inserted and lifted out of the recess and removed after welding can be. This distance must therefore be greater than the height of the vessel.

In one device, "in which the ram is by hand is to be served, it is very disadvantageous if "with everyone Working stroke the welding tool first has to overcome a very large idle stroke before the welding pressure is generated will,

It is therefore the task of the furnace to avoid this large idle stroke.

The innovation is that the recess is provided in a plate that can be moved in the plane of the table is mounted in or above a recess of the table, which is located below the welding tool Place of the table extends to at least one edge of the table. As a result, the plate can be moved in such a way that that the recess is no longer below the welding tool, so that the insertion of the vessel in the recess and the removal of the vessel after the welding process from the recess no longer under the Welding tool needs to be done. The stroke of the welding tool only needs to be very small.

When the recess extends to an edge of the table, the plate can be moved between two end positions, wherein in one end position the recess receiving the vessel is below the welding tool and in

the other end position near the edge of the table. Located When the plate is pulled out of the table, the recess with the closed vessel near the edge of the table, see above it is much easier to replace the closed vessel with a vessel that has to be closed than if one were to must reach far under the table to remove the vessel from the recess.

If the recess extends from one edge of the table to the other, and if there are two recesses in the top, so that in one end position there is one recess below the welding tool and the other are outside the table and vice versa in the other end position, this can be the case with every welding process previous welding process closed vessel from the removed from the recess located outside the table and exchanged for a vessel to be closed will.

The recess can also be provided in the form of a circular arc in the table and the plate to and fro about an axis perpendicular to the table and in the center of the arc be rotatable.

In the drawing, the subject of the innovation is shown as an example and schematically. Show it:

Fig. 1 is a view of the device, partially in section,

Fig. 2 is a plan view of Pig. 1,

3 shows a section along line II - II in FIG. 2,

Fig. 4- is a plan view of the table of a further embodiment the furnace,

Fig. 5 is a side view of Fig. 4,

FIG. 6 shows a section along line III - III in FIG. 7 ₅

7 is a plan view of a table with a rotatable plate.

The device consists of a table 1 with feet 2. At one end of the table 1 is a curved arm 3 provided, which extends upwards and up to about the middle of the table. The end of the arm 3 is used as a guide designed for a punch 4, which is mounted so as to be vertically displaceable and above which an eccentric disk 5 is mounted which can be rotated by a lever 6. A spring 7 presses the upper end of the stamp against the circumference of the Eccentric disc 5 · At the lower end of the punch 4- is a electrically heated welding tool 8 articulated.

From the edge of the table opposite the arm 3 1, a cutout in the table 1 extends below the welding tool 8. This recess 9 d-es table 1 has at the edge projecting edge strips on which a plate 10 rests, which is shifted in the recess 9 can be.

In the plate 10 a recess 11 is provided, which has the size of the G-efäßes to be closed and in their Edge a ring 12 is used, the inwardly projecting edge as a support for the flange of the vessel 13 serves. The position of the recess 11 in the plate 10 is in such a way that when the plate 10 is pushed in, this recess lies vertically under the welding tool 8 »

If in the position shown in FIG. 1, the lever 6 from the extended position Pivoted position into the dot-dash position, the eccentric 5 pushes the welding tool 8 downwards, so that a ring strip 14 provided on the underside of the welding tool, the edge of the lying on the vessel 13 Lid on the flange of the vessel 13 presses and him welds on. If the lever 6 is then pivoted back into the starting position, the spring 7 pulls the welding tool 8 back to the top position. The plate 10 can now be moved to the left in FIGS. 1 and 2, until the ends of a rod 16 fastened to the underside of the plate 10 strike against stops 17 on the table Recess 11 is then near the edge of the table. The closed vessel I3 can be lifted upwards from below and exchanged for a vessel to be closed. Then the plate 10 is back in the starting position pushed back, the vessel to be closed is again under the welding tool 8, so that the

Welding process can be carried out by operating the lever 6.

The embodiment of the innovation according to the Pig. 4 and 5 differs from that according to FIGS. 1 ″ to 3 essentially only in that the recess 20 in the table over the entire width of the table and the plate 21, which on the longitudinal edges of this recess 20 is stored, in one end position over one edge of the table and in the other end position over the other The edge of the table protrudes. Stops 22 secure the correct position of the plate 21 in the end position. The plate 21 has two recesses 23 and 24 to accommodate a vessel Mistake. .

In one end position (see Fig. 4) is the Recess 24 under the welding tool, so that a lid is welded onto the vessel located in this recess can be. During this time, a closed vessel can be placed in the recess 23 located outside the table can be exchanged for a vessel to be closed. Then the plate 21 is then etes in the other end position moved, in which now the recess 24 is outside the table and the recess 23 is below the Welding tool is located. The closed vessel can now be placed in the recess 24 against a vessel to be closed change.

The recess 20 is in the embodiment according to FIGS fig, 4 and 5 not open at the bottom, as in the embodiment 1 to 3 was the case. The recess 20 is rather by a cranking of the table formed downward, the through-bend must be so deep that those located in the recesses 23 and 24 Vessels in the recess 20 can be pushed back and forth unhindered together with the plate 21.

In the embodiment according to FIGS. 6 and 7, the recess 30 in the table does not extend straight across its width, but in an arc of a circle. The center of the circular arc is formed by a pin 31 ₅ attached to the table, around which the plate 32 can be pivoted. The plate 32 is in turn provided with two recesses 33 and 3 ² J-, the centers of which lie on an arc of a circle, the center of which is again at 31 and which runs in the center line of the recess 30. By rotating the plate 32 from one end position to the other, one or the other recess 33 or 34 can optionally be brought under the welding tool in order to weld the lid onto the vessel located therein.

Claims (3)

1. Device for welding on a cover made of plastic or coated with plastic, on the edge of a plastic vessel with the aid of a heated one arranged at the lower end of a press ram Welding tool, the ring bar of which acts as a welding jaw and corresponds to the shape of the vessel edge The lid presses onto the edge of the vessel, which is on the edge of a recess in the table of the device that receives the vessel rests, characterized in that the recess is provided in a plate which is displaceable in the table plane in or above a recess of the The table is supported, which extends from the point of the table below the welding tool up to extends at least one edge of the table. 2. Apparatus according to claim 1, characterized in that when the recess extends up to an edge of the Table, the plate can be moved between two end positions, with the vessel in one end position receiving recess below the welding tool and in the other end position near the edge of the table is located. 3. Apparatus according to claim 1, characterized in that / 111 when extending the recess from one edge of the table to the other in the plate two recesses curtain are and that in one end position there is one recess below the welding tool and the other Recess located outside of the table and vice versa in the other end position. 4, device according to claim 2 or 3 _? characterized in that the recess extends in the shape of a circular arc and the plate can be rotated back and forth about an axis perpendicular to the table and in the center of the circular arc.