摘要:
An improved apparatus for adapting speed, in particular for nippers (1) which can be made to travel along a rail arrangement (3), is distinguished by the following featuresa rotating and electrically conductive eddy-current body (17), preferably designed in the form of an eddy-current wheel or an eddy-current cylinder, is provided,the guide rail arrangement (3) runs at least over and away from a partial region of the eddy-current body (17) with a tangential component,on the carriages (1) which can be made to travel along the guide rail arrangement (3) there is provided or can be excited at least one magnet (7a, 7b), which is arranged on the side facing the eddy-current body (17) and, in the region of the eddy-current body (17), can be moved over and away from the eddy-current body (17), with an air gap being formed.
摘要:
A magnetic tenter lever actuating device includes a coupling rail, preferably designed in the form of a pole shoe rail (21), by means of which the end of a tenter lever (3) can be pivoted deliberately from its open into its closed position and vice versa by means of a coupling region (29) formed at the end. An improved magnetic tenter lever actuating device is primarily characterized by the following features: the magnetic actuating device for the tenter lever further includes a safety device for actuating the tenter lever, the safety device comprises a mechanically acting redundant system for the forcible opening and/or closing of the tenter lever in the event of the failure or ineffectiveness of the magnetic actuating device, the safety device is arranged and designed such that, when an opening and/or closing movement is to be carried out by means of the safety device, the tenter lever can be pivoted mechanically, at least in its first opening pivoting range, out of its closed position or, at least in its final pivoting range, into its closed position.
摘要:
The invention relates to an improved method for lubricating transport systems or parts thereof, especially for lubricating guideways and rails in elongating systems. The inventive method can be realized in that the lubricant film continuity comprises the equation: X=(lubricating active time/lubricating inactive time)≧100 and/or the lubricant film continuity comprises the equation: Y=(lubricating active time/(lubricating active time+lubricating inactive time))≧10%.
摘要:
An improved transport device comprises a novel guide rail (3). Carriages (5) can be moved along the guide rail (3), which carriages comprise guide elements (25a, 25b; 25c, 25d) for this purpose, which elements are supported on rail guiding surfaces (17a, 17b; 17c, 17d) of the guide rail (3). The guide rail is held in a prestressed and/or damped manner with variable guide elements (25a, 25b; 25c, 25d) comprising, for example, sliding pieces or running rollers at the respective spacing of the �sic!. As a result, the spacing distance between the rail guiding surfaces (17a, 17b; 17c, 17d) can automatically be adjusted to the variable, in each case given, spacing of the guide elements (25a, 25b; 25c, 25d).
摘要:
An improved shock absorber device including first and second shock absorbers. The spring characteristics of the shock absorbers provide a jump function. The position and size of the differential force value in the region of the spring characteristics are such that, when propulsive and shock forces occur with a force value within the differential force value, the second shock absorber is not activated and the first shock absorber has already reached its maximum shock absorbing limit.
摘要:
An improved flat-sheet die, compared with the prior art, for an extrusion system for producing flat sheets has an extremely close succession of actuators (13), by way of which at least one die lip (3,5) is adjustable with a narrow-band bending line in order to define the outlet gap (1).
摘要:
In the take-up device for web-shaped materials, especially plastic films, there is at least one bearing unit which acts between the ends of the contact roller on its peripheral compressive surface and supports the contact roller. The contact roller is made with a relatively small diameter and is made flexurally soft such that via the bearing unit(s) the bending line and the damping behavior of the contact roller between its ends can be influenced and advantageously also controlled.
摘要:
Conventional clips must be manufactured with high precision and run the risk of becoming stiff in the course of time or even to become inoperative in extreme cases due to sediments in their pivoting mechanism. In order to obtain a clip which remains operational in spite of sediments and the danger of clogging and which is furthermore easy to assemble and disassemble, the clip lever is supported with a first bearing part on another bearing part on the side of the clip body, forming a kind of rocking bearing. The rocking bearing can in particular be composed of a knife-edge or rolling bearing. This clip is particularly useful for plastics stretching machines.
摘要:
This invention relates to a transport foil/film as well as a transport system for holding and transport of at least one thin flexible substrate and a corresponding method and a use of a flexible transport foil/film for holding and for transport of at least one thin, flexible substrate, the substrates being able to be fixed or being fixed at least temporarily on the transport foil/film and the transport foil/film being drivable by driving means for transport of the substrates.