Abstract:
In an arrangement for applying substances to a web of material (4), a doctor blade (9, 13) is pressed magnetically against the material or a stencil (5) by means of a working magnet and rests in the working position against a profiled strip (6). A least one retaining magnet (7) arranged in the profiled strip (6) maintains the doctor blade (9, 13) in rolling or sliding contact with the profiled strip (6) when the working magnet is switched off and raises the profiled strip (6) from the surface of the web (4, 5) or the stencil.
Abstract:
A device (1) is disclosed for supplying a pourable, paste-like and/or gaseous substance (9) to an application site which extends in the longitudinal direction of the device and for applying the substance, in particular by means of a doctoring element (91, 92, 93), to an application surface (81) which extends over a large width along the application site. The flow of substance is supplied in three steps. In the first step (I), a connection duct (5) designed as a pipe, hose or the like gathers the substance, forms a centralised flow of substance and supplies it to the device. In a second step (II), the flow of substance is subdivided by a substance flow subdividing arrangement into a plurality of flowpaths uniformly distributed over the width of the application site. In a third step (III), a layer of substance having a homogeneous surface and a uniform thickness over the whole width of application is spread on the application surface.
Abstract:
The invention relates to a welding system (1) having a current source (3) for producing the electrical energy for a welding process, and having a communication system (29) for producing a wireless communication connection between system components (2, 6). The communication system (29) has a first signal transmission device (30) for a transmission of reference data, which first signal transmission device (30) has a sending and/or a receiving device (31, 32) assigned to a stationary component (2) and a sending and/or a receiving device (31, 32) assigned to a portable component (6). According to the invention, the communication system (29) has an additional signal transmission device (33), particularly an RFID element, which has at least one identification means (34) arranged in a first sending and/or receiving device (36) of the stationary component (2), and one identifier (35) arranged in an additional sending and/or receiving device (37) of the portable component (6). The first sending and/or receiving device (36) assigned to the stationary component (2) forms within the range thereof a calling area (46) of which the spread is smaller than the range of the first signal transmission device (30).
Abstract:
An applicator (5), in particular for textile screen printing machines, is designed in such a way that it may be selectively cleaned both in the assembled state on the production installation and in a separate washing installation. In particular, the distance between the axes of the outlets is independent from the length of the applicator (19) and varies between 5 and 20 mm, preferably between 5 and 15 mm. The total cross-sectional surface of all outlets is at least twice as large as the cross-section of the inlet in the tubular body.
Abstract:
A device (1) for delivering a substance to an application site comprises a substance flow division arrangement (3) having ducts which increase in number continuously to form a plurality of substance outlet mouths (600) distributed over the application area. The distance (A) between two adjacent outlets ranges from 3 to 20 mm, and the outlet openings (60) are arranged at a distance from the operating site (8) such that they open out into an empty space between themselves and the operating site (8). A method of delivering a substance and cleaning the device (1) is characterized in that the substance to be applied is delivered to the operating site (8) with a distance between the outlet mouths (600) and the operating site (8) of 1 to 100 mm, and the dividing arrangement (3) extracts the substance during the cleaning operation, the distance between the operating site (8) and outlet mouths (600) being selected in a range from 1 to 10 mm.