Automatic cutter head for shaping the edge of fabric - has mechanism to form curved shapes and sensors to ensure accurate patterns, while allowing for irregularities in the fabric

A cutter head has (a) means for severing the fabric, (b) a frame and (c) drive to direct the cutter head. In the head are optoelectric sensors to direct the cutter along a curve. The sensors utilise two sources of light, which project at different angles to a position relative to the cutting point,...

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Bibliographische Detailangaben
1. Verfasser:	BIEGGER, ROLAND, 86663 ASBACH-BAEUMENHEIM, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAUNDERING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS METAL-WORKING NOT OTHERWISE PROVIDED FOR MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS REGULATING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	A cutter head has (a) means for severing the fabric, (b) a frame and (c) drive to direct the cutter head. In the head are optoelectric sensors to direct the cutter along a curve. The sensors utilise two sources of light, which project at different angles to a position relative to the cutting point, and the direction of movement of the head is controlled by the coordinates of the fabric and the time of forward movement in conjunction with the sensors. The fabric is pref. usually curtain material (TB), which requires a shaped pattern (LS) along one side. The fabric pref. moves automatically along a table in direction (LR), and is cut by a hot wire element, or a laser, so that the section (12) is cut away from the body (11). The cutter head (10) is pref. mounted on an arm (8), which moves back and forward under control of the parallelogram (5, 6) and cross bar (7), connected to the base (2), in which a step motor (3) can actuate the required movement. The head (10) is pref. in two parts, with a top and bottom disc, holding optoelectric sensors and projectors, which are LEDs and lenses, projecting crosswise, so that one is under the edge of the fabric, and is not activated, whilst the other is in the gap behind the cutter and so is activated. At each step along the fabric as it progresses, along with the relative signals from the sensors, the steop motor is driven in the required direction to form a shape of a curve at the edge of the fabric. The loose edge (12) of the fabric cut away, is directed by the bar connecting the top disc to the bottom disc, to form a gap (LS) through which the light can project to the sensor. The distances between the position of light projectio and the cutter element takes into consideration any irregularities in the fabric, so that the curved pattern is of the correct shape. ADVANTAGE - The design of the cutter head is arranged to take into consideration the uneveness of the fabric which moves automatically forward along a table, so that the curves formed are regular.