摘要:
Steel bit bodies are manufactured in a production process that employs polystyrene patterns in a lost foam casting process. The patterns are machined to permit the formation of complex shapes that cannot be reproduced in simple patterns that are extractable from reusable, two-piece pattern molds or dies. The patterns are machined from a billet material according to a basic, programmed, five-axis machining process to form multiple copies of a reproducible complex pattern body. The process is modified to produce multiple copies of a modified design. Machining the complex patterns and producing variations by changing the machine program permit multiple bit patterns of variable forms to be produced without need for building an intermediate, reusable pattern mold that would require multiple mold pieces, thus eliminating the associated time and expense required in the creation of a new pattern mold for each variation of the bit design. The pattern is machined in a single chucking operation in a machine tool adapted for machining plastics in a three-dimensional global process. The plastic has a composition and a density that permit it to be machined into a pattern having relatively small, unsupported structural projections and smooth surface features. Bit patterns formed in the process have forward canted blades that are machined from mating planar surfaces to simplify the machining process. The edges of the forward canted blades form a spiral surface for mounting cutter elements. The forward canting makes the blades stronger and thus permits the blades to be thinner than non-canted blades to increase the clearance between blades, which improves the movement of cuttings past the bit. Recesses are machined into the gauge face of the patterns to produce a recess in the casting for receiving hardfacing. The hardfacing in the recess forms a layer that cooperates with the surrounding blade material to form a smooth transition area as the bit wears during usage.
摘要:
Provided is an automatic mattress sterilization apparatus configured to sterilize a mattress, including a frame extending in one direction and on which the mattress is placed, a sterilization part coupled to an upper portion of the frame and having an inner space through which the mattress passes, and a moving part provided in the frame and configured to move the mattress placed on the frame, and the mattress is moved from one side of the sterilization part to the other side of the sterilization part via the inner space of the sterilization part by the moving part.
摘要:
Die vorliegende Erfindung betrifft eine Vorrichtung und ein Verfahren zum automatischen Nähen von insbesondere zweilagigem Nähgut. Hierzu weist die Vorrichtung eine Nähvorrichtung zum Nähen des Nähguts, eine Klammervorrichtung (23), die das Nähgut klammert, der Nähvorrichtung (3) zuführt und das genähte Nähgut wieder abführt, und eine Nähguteinlegevorrichtung (9) auf, die das Nähgut ergreift und an die zugeordnete Klammervorrichtung (23) übergibt. Diese Vorrichtung zeichnet sich dadurch aus, daß eine Mehrzahl von Nähvorrichtungen (3), vorzugsweise bis zu sieben Nähvorrichtungen mit jeweils einer zugeordneten Klammervorrichtung (23) vorgesehen ist, wobei die Klammervorrichtungen von der einen Nähguteinlegevorrichtung bestückt werden.
摘要:
Zum Nähen von einfachen und doppelten Säumen wird vor dem Nähkopf(1) eine Führungsvorrichtung (2) angeordnet, welche den vorgefalteten Saum ohne ihn zu verziehen unter den Nähfuß (3) führt. Der Stoff wird dabei zwischen zwei gegeneinander bewegbaren Berandungsflächen (5,6) geführt. Die Bewegbarkeit ermöglicht eine dichte Führung bei einfachen Stofflagen, ohne daß dickere Stoffstellen, wie etwa Quernähte, in der Führung verklemmt werden. Bevor die dickeren Stoffstellen in die Führung eintreten, werden sie beispielsweise aufgrund einer Markierung von einem Sensor (20) erkannt, sodaß die Berandungsflächen (5,6) von einer Antriebsvorrichtung (13-16) auseinander bewegt werden können.
摘要:
A method and apparatus for the automated assembly of sleeves onto the body of the garment. In the present invention, the garment body (120) is placed on a first fixture (30) resembling a mannequin. The sleeves (130) are placed inside facing out on a second conical fixture (94). Automatically, each sleeve (130) is positioned and sewn onto the garment body (120) and the finished garment is removed from the first fixture (30). Through the use of sensors (106), each sleeve (130) is precisely and consistently sewn to the garment body (120). The result is a high quality garment produced at a lower cost.
摘要:
An automatic sewing apparatus is disclosed for sewing together a pair of first hems of overlapped two bodies by a cross seam each formed by sewing together a pair of second hems of two pieces of overlapped cloth, wherein the two bodies are layered with the margins to the seam of the second hems outward, and the apparatus being characterized by comprising a sewing device 3 for sewing the overlapped bodies together, a table 2 for laying the bodies to be sewn, and a sewn edge fold-down device 33 for folding down the margins of one of the bodies in the direction to feed the cloth, and the margins of the other body in the opposite direction before sewing the first hems.