摘要:
The method involves depositing a portion of plastic raw material on a holder having a small support surface at a spacing from a compression molding tool (1), where the raw material portion is not directly delivered to the compression molding tool before molding process. The holder is formed in pincer-shape and located at a side wall of the compression molding tool. The holder is rotated sideways around a rotation axis after releasing the portion and rotated back again after a molding is finished. The holder is moved in controlled manner. An independent claim is also included for a device for shaping thermoplastic material.
摘要:
Längsnahtschweissmaschinen der bekannten Ausgestaltung umfassen Transportbänder, deren Synchronlauf für die Erzeugung fehlerfreier Nähte unabdingbar ist. Der Wärmeeintrag in die Bänder führt zu Verzerrungen der Bänder, so dass der Synchronlauf nicht in geforderter Präzision gewährleistet ist. Die Ueberwachung und die Einhaltung des Synchronlaufes ist ein die Fertigungsgeschwindigkeit limitierender Faktor. Die Erfindung schlägt eine Längsnahtschweissmaschine vor, die die Synchronlaufproblematik durch Elimination der Transportbänder und durch eine neue Aufheizeinrichtung hoher Energiedichte beseitigt.
摘要:
The invention relates to a method for producing tubular bodies (1) which have an inner circumferential surface (8) and an outer circumferential surface (7) for packaging tubes, consisting of a strip-shaped film substrate (2) which has at least one weldable plastic layer (3) or consists of said plastic layer and which comprises a first edge face (5) that extends in the longitudinal direction of the film substrate (2) and a second edge face (6) that is spaced from the first edge face (5) by the width of the film substrate (2). The first edge face (5) runs at a first angle (α) with respect to a first thickness extension direction at a first radially innermost border (9) of the first edge face (5), and the second edge face (6) runs at a second angle (β) with respect to a second thickness extension direction at a second radially outermost border of the second edge face (6). The first and second edge faces (6) are arranged opposite each other and are connected under the effect of heat. According to the invention, the first angle (α) and the second angle (β) are different sizes such that the first angle (α) is selected so as to be smaller than the second angle (β) by an angular difference between 3° and 70°, and the edge faces (5, 6) are arranged such that a longitudinal gap (11) that opens outwards is delimited by the first and second edge faces (5, 6).
摘要:
The invention relates to a device for manufacturing circumferentially closed tubular tube bodies, comprising conveying means for conveying the substrate (10) in a conveying direction, and also comprising tube-forming means (12) which are designed to form a web-like substrate (10), which has a first and a second longitudinal edge (18, 19), into a tubular form (13) in which, in the circumferential direction, the first and the second longitudinal edge (18, 19) form or delimit a contact region (20), in particular abutting or overlapping region, which extends in the conveying direction, wherein the tube-forming means effect the shaping of the substrate (10) into the tubular form (13) in a shaping region (21) and comprise welding means (22) for welding the tubular form (13) at a weld circumferential position, first sensor means (27), which are upstream of the shaping region (21) in the conveying direction, for detecting the position of the substrate web (10), setting means (26) for setting the position of the substrate web transversely with respect to the conveying direction, and first control means (31) which are designed to actuate the setting means (26), taking into consideration the measurement values from the first sensor means (27), such that the web-like substrate (10) is held in a setpoint position transversely with respect to the conveying direction or such that the web-like substrate (10) is adjusted in the direction of the setpoint position.
摘要:
The invention relates to a transfer apparatus (1) with a clocked, rotatably drivable carousel (3) comprising a plurality of workpiece carriers arranged next to one another in the circumferential direction, with a transport apparatus (6) which is arranged adjacent to the carousel (3) and comprises a transport element (7) in the form of a band, belt, cable or chain, and with a manipulation unit (5) for removing workpieces (21) from the carousel (3), transferring the workpieces (21) to the transport element (7) and discharging the workpieces (21) on the transport element (7). According to the invention, the transport element (7) is driven at an at least approximately constant speed during the removal, the transfer and the discharging of the workpieces (21) by means of the manipulation unit (5). Furthermore, the invention relates to a printing apparatus (2) and to a method for operating a transfer apparatus (1).
摘要:
Ein erstes Formpresswerkzeug (1), welches die Matrize (2) bildet, weist einen Halter (8) auf. Auf diesem Halter (8) wird eine Portion einer zu verpressenden Rohmasse in einem Abstand zum Formpresswerkzeug (1) deponiert. Vor bzw. bei Beginn des Pressvorgangs wird der Halter (8) im ersten Formpresswerkzeug (1) versenkt und gibt die Portion für den Formpressvorgang frei.
摘要:
A device for severing an endless tube made from a flexible material, the endless tube being conveyed in a transport direction, in order to obtain tube bodies for packaging tubes, comprises a guide element (110) for the endless tube, the guide element (110) having a substantially cylindrical inner surface (140) for guiding the outer surface of the endless tube. The device further comprises a cutting element (150) for cutting the endless tube along a substantially azimuthal cutting line, the cutting element (150) being arranged adjacent to the guide element (110) in the transport direction. At least in a region neighbouring the cutting element (150), the inner surface of the guide element comprises a plurality of gas delivery orifices (126). Using the gas delivery orifices (126) a gas cushion may be created between the inner surface (140) of the guide element (110) and the outer surface of the endless tube, thereby avoiding physical contact between these two surfaces and therefore reducing or eliminating abrasion of the tube material. Therefore, a high throughput is achievable and the tube bodies have a smooth outer surface and are free from contamination.