PUMPING DEVICE AND METHOD FOR CONVEYING VISCOUS MEDIA, IN PARTICULAR ADHESIVES

摘要

The invention includes a pumping device (1, 1a) and a method for conveying a viscous medium, in particular adhesives. The pumping device (1, 1a) has a cylinder unit (20) as well as a piston unit (22), which is at least partially contained within the cylinder unit (20), with the cylinder unit (20) and the piston unit (22) together forming a conveying means (2), which operates according to the reciprocating piston principle. The pumping device (1, 1a) further has at least one drive shaft (7) communicating with a motor, via which drive shaft (7) the cylinder unit (20) and the piston unit (22) are rotationally movable about a common axis, and the pumping device (1, 1a) also has a forced guide being mechanically coupled with the conveying means (2), by means of which forced guide the rotating movement of the conveying means (2) is convertible into an alternating forward and return stroke of the piston unit (22) for the purpose of pumping the respective viscous medium.

主权项

1. A pumping device (1, 1a) for conveying a viscous medium, the pumping device comprising
a cylinder unit (20) and a piston unit (22), which is at least partially contained within the cylinder unit (20), wherein the cylinder unit (20) and the piston unit (22) together form a conveying means (2), which operates according to the reciprocating piston principle; at least one drive shaft (7) being in communication with a motor (50), wherein the cylinder unit (20) and the piston unit (22) are rotationally movable about a common axis via the drive shaft (7); and force guide (38) being mechanically coupled to the conveying means (2), which force guide (38) converts the rotating movement of the conveying means (2) into an alternating forward and return stroke of the piston unit (22) for the purpose of pumping a viscous medium, wherein the piston unit (22) and at least one connecting rod unit (19) are directly mechanically coupled with each other via a bearing journal connection (17), and wherein the forward and return strokes of the piston unit (22) are effectable via the connecting rod unit (19), which is eccentrically movable via an adjustment mechanism (30) and which has a mechanical coupling to the conveying means (2).