A carrier (1) for the simultaneous measurement of sealing temperature, sealing time and sealing force in a primary packaging line for ophthalmic lenses comprises a temperature sensing plate (2), a force sensing plate (3), and a supporting plate (4). Temperature sensing plate (2) is arranged atop force sensing plate (3), which is arranged atop supporting plate (4).

The invention relates to a method for testing the function of a tubular bag machine, the tubular bag machine comprising a drive control system and multiple electronic drive units which are controlled independently of each other by the drive control system and which drive different functional elements of the packing machine in a cycle time-synchronous manner as they are going through predefined motion sequences, and one drive unit being realized in the manner of a transverse sealing unit, and the transverse sealing unit comprising at least one drive motor (02) and two transverse sealing jaws (13a, 13b) which are driven relative to each other by the drive motor (02) and by means of which a film tube (09) is sealed transversely to the conveying direction (21), and the drive torque (M) of the drive motor (02) being measured directly or indirectly using a drive controller, and the position () of the drive motor (02) being measured directly or indirectly using a position sensor, the method comprising the following steps: a) removing the film tube (09) from the sealing zone between the transverse sealing jaws (13a, 13b); b) closing the transverse sealing jaws (13a, 13b) according to a predefined target torque stored in the drive control system; c) measuring the actual position of the drive motor (02) once the target torque has been reached; d) comparing the measured actual position to a target position stored in the drive control system and associated with the predefined target torque.

The invention relates to a method for producing strapping. A strapping band (4) is first guided about at least one packaging piece, tightened, and equipped with a closure at band ends (4a, 4b) to be connected in a closure unit (1). Furthermore, at least one sensor (7) connected to a control unit (8) is provided in the closure unit (1). One or more closure parameters are detected by means of the control unit (8) using the sensor (7), and the closure unit (1) is correspondingly actuated. According to the invention, the sensor (7) is designed as a load cell (7) which is let into a compression ram (6a, 6b) of the closure unit (1).

An assembly to connect together first and second sheet members. The assembly includes a pressure device that applies pressure to the sheet members while the sheet members are in an overlapping arrangement and positioned on a support platform. A sensing system that includes one or more thin film pressure sensors detects the positions of the leading and trailing edges. A connection device connects the members together in an overlapping arrangement.

The present disclosure can provide for an ultrasonic welding method for a pair of workpieces. The method can include first pressing an ultrasonic welding stack against a first workpiece in the pair so that the first workpiece comes into contact with a second workpiece in the pair. The method can then provide for initiating a weld phase by outputting energy from the ultrasonic welding stack to the first workpiece. The method can provide for monitoring, with at least one sensor, a sensed parameter. The sensed parameter can be, for example, weld force and/or weld force rate of change. The method can provide for determining whether the sensed parameter has reached a predetermined level. Based on determining that the sensed parameter has reached the predetermined level, the method can provide for ending the weld phase.

One fusion machine can butt or socket fuse polyolefin pipes and fittings in straight alignment or at inwardly or outwardly mitered universal angles from 0 to 45 for butt fusion and from 0 to 10 for socket fusion. The machine is manually driven, hydraulically monitored and operated in all configurations from one side of the machine.

One fusion machine can butt or socket fuse polyolefin pipes and fittings in straight alignment or at inwardly or outwardly mitered universal angles from 0 to 45 for butt fusion and from 0 to 10 for socket fusion. The machine is manually driven, hydraulically monitored and operated in all configurations from one side of the machine.

A first aspect of the invention provides a method of joining a part to a composite component, the composite component comprising fibres impregnated with a matrix material, and the part comprising a plurality of projections, the method comprising: inserting the projections into the composite component; and pre-heating the projections before they are inserted into the composite component, so that the projections are at a higher temperature than the composite component as they are inserted into the composite component. The projections locally heat the matrix material of the composite component as they are pushed into the composite component. Increased temperature during insertion is advantageous as the reduced matrix viscosity, due to the increased temperature of the matrix, results in better consolidation of the fibres around the projections and minimises the distortion of the fibres. The composite component is only heated locally where heating is required, which removes the need to heat the entire composite component.

The present disclosure can provide for an ultrasonic welding method for a pair of workpieces. The method can include first pressing an ultrasonic welding stack against a first workpiece in the pair so that the first workpiece comes into contact with a second workpiece in the pair. The method can then provide for initiating a weld phase by outputting energy from the ultrasonic welding stack to the first workpiece. The method can provide for monitoring, with at least one sensor, a sensed parameter. The sensed parameter can be, for example, weld force and/or weld force rate of change. The method can provide for determining whether the sensed parameter has reached a predetermined level. Based on determining that the sensed parameter has reached the predetermined level, the method can provide for ending the weld phase.

A thermoplastic plastic nut includes a nut main section having a second thread to screw a first thread of a bolt; and a thin wall section weldable to the first thread and disposed to protrude upwardly from the nut main section. A material of the nut main section contains a thermoplastic resin and a material of the thin wall section contains the thermoplastic resin. Thus, a thermoplastic plastic nut, a nut welding device and a nut welding method are provided to make it possible to easily prevent the loosening of the nut.