Conveying device for use in the field of plastics

A conveying device for use in the field of plastics, the conveying device comprising:

• a frame;
• a weighing cell connected to the frame;
• a separating unit suspended from the weighing cell;
• a first coupling connected to the frame and configured to connect a vacuum source to the separating unit;
• a second coupling connected to the frame and configured to connect a conveying line for goods to be conveyed to the separating unit;
• wherein at least one of the first coupling and the second coupling comprises a first coupling part connected to the separating unit and a second coupling part connected to the frame, wherein the first and the second coupling parts do not contact each other in a region of no contact;
• at least one sealing element configured to seal the region of no contact between the first and the second coupling parts;
• wherein the at least one sealing element comprises a radial inner rim and the radial inner rim engages an annular groove provided at the first coupling part or at the second coupling part.

A conveying device for use in the field of plastics, the conveying device comprising:

• a frame;
• a weighing cell connected to the frame;
• a separating unit suspended from the weighing cell;
• a first coupling connected to the frame and configured to connect a vacuum source to the separating unit;
• a second coupling connected to the frame and configured to connect a conveying line for goods to be conveyed to the separating unit;
• wherein at least one of the first coupling and the second coupling comprises a first coupling part connected to the separating unit and a second coupling part connected to the frame, wherein the first and the second coupling parts do not contact each other in a region of no contact;
• at least one sealing element configured to seal the region of no contact between the first and the second coupling parts;
• wherein the first and the second coupling parts are axially spaced apart at a distance and wherein the distance is bridged by a bushing provided on at least one of the first and second coupling parts, wherein the at least one sealing element comprises a radial inner rim and the radial inner rim engages an annular groove provided at an outer side of the bushing.

A conveying device for use in the field of plastics, the conveying device comprising:

• a frame;
• a weighing cell connected to the frame;
• a separating unit suspended from the weighing cell;
• a first coupling connected to the frame and configured to connect a vacuum source to the separating unit;
• a second coupling connected to the frame and configured to connect a conveying line for goods to be conveyed to the separating unit;
• wherein at least one of the first coupling and the second coupling comprises a first coupling part connected to the separating unit and a second coupling part connected to the frame, wherein the first and the second coupling parts do not contact each other in a region of no contact;
• at least one sealing element configured to seal the region of no contact between the first and the second coupling parts;
• wherein the at least one sealing element is positioned in a radial plane of the first coupling part or of the second coupling part.

A conveying device for use in the field of plastics, the conveying device comprising:

• a frame;
• a weighing cell connected to the frame;
• a separating unit suspended from the weighing cell;
• a first coupling connected to the frame and configured to connect a vacuum source to the separating unit;
• a second coupling connected to the frame and configured to connect a conveying line for goods to be conveyed to the separating unit;
• wherein at least one of the first coupling and the second coupling comprises a first coupling part connected to the separating unit and a second coupling part connected to the frame, wherein the first and the second coupling parts do not contact each other in a region of no contact;
• at least one sealing element configured to seal the region of no contact between the first and the second coupling parts;
• wherein the at least one sealing element comprises a release or rest position and is spaced apart in the release or rest position at a distance from a sealing surface.