摘要:
This invention relates to a device for forming the shed in a weaving loom, wherein the elements which constitute the system for lifting the warp yarns are, from top to bottom, an electro-magnet, two blades, two mobile hooks and a lifting beam. These elements are disposed one below the other between two vertical separating partitions constituting an assembly. A certain number of assemblies are assembled in a row so as to form a module which may be selectively inserted within the loom frame.
摘要:
An assembly for controlling the reciprocating movement of the upper and lower frames of a shed-forming device of a weaving loom wherein on the chassis on either side of the shed-forming device two cams are provided which are each in engagement with the end of an offset lever fitted on a shaft to which is connected a balance beam. The ends of the balance beam are connected to the first ends of two connecting rods which have their other ends articulated to first and second rocking levers. The first rocking lever is split having oppositely oriented spaced arms which are separated by the second rocking lever. The first rocking lever is fitted on a pin pivoting in a bearing on the chassis. The second rocking lever is mounted to rotate about the pin of the first rocking lever and the first and second rocking levers are connected to the upper and lower frames by short and long articulated levers.
摘要:
A three-position weaving mechanism for a weaving loom which includes a plurality of shed-forming devices having tackle assemblies disposed in side by side relationship and wherein the lower pulleys of adjacent tackle assemblies are joined by a cord which passes over such pulleys and an intermediate idler pulley which is secured to the frame of the weaving loom.
摘要:
This invention relates to the shed forming devices in weaving looms wherein each of the retaining hooks is in the form of an element which is pivotable about a horizontal pin with each element provided with a tail portion which is subjected to the reaction of a compression spring so that the head portion thereof lies in a rest position above the toe of a corresponding mobile hook. When the mobile hook causes a retaining hook to pivot so that its nose or head is in an outer position with respect to the toe, an electromagnet of the device may be selectively activated to retain the retaining hook in this outer position to thereby prevent the mobile hook from being restrained by the retaining hook.
摘要:
This invention is directed to improved mobile hooks for the shed forming device of weaving looms wherein the mobile hooks are disposed at each of the ends of a funicular element. Each hook includes a web bordered by a vertical heel disposed in a slideway formed by grooves made in two opposing separating partitions with the web including a toe adapted to be hooked by the curved ends of a conventional blade element which is utilized to maintain the hooks in their uppermost elevated position. The hooks further include portions which are adapted to be gripped by conventional knives as the knives are moved vertically in reciprocating motion and also a push element adapted to displace the hook retaining blade against the core of an electromagnet which is used to selectively urge the retaining hook into engagement with the mobile hook when the electromagnet is activated.
摘要:
A lifting beam for the shed forming device in a weaving loom which includes a fork joint made in the form of two cheeks or pairs of opposing flanges having aligned openings formed therein through which the stub shaft of two pulleys are rotatably mounted. The pulleys are made of an appropriate plastic material which is overmolded over the metal pins or shafts with opposing grooves provided in the interfaces of the cheeks to facilitate positioning of the pins in the openings.
摘要:
A shed-forming device for a weaving loom of the jacquard type in which a reciprocating vertical movement of two series of knives is effected from an input drive shaft which is drivingly connected through a cam mechanism to two longitudinal shafts disposed concentrically with respect to one another inside a rigid tube mounted between plates for supporting the shafts and wherein the cam mechanism transmits a reciprocating rotary movement from the input drive shaft to the two longitudinal shafts.
摘要:
An articulated structure for a multi-axis robot includes a base having an arm hinged to the base about a first axis and a forearm hinged to the arm about a second axis parallel to the first axis, and wherein the forearm forms a deformable parallelogram structure which includes two connecting rods that are hinged to two plates about respective axes that are perpendicular to the first and second axes. The structure also includes a first electric actuator controlling pivoting of the arm about the first axis, a second electric actuator controlling pivoting of the forearm about the second axis, and a third electric actuator mounted directly on one of the base and the arm for controlling pivoting of one of the connecting rods relative to the plates about the axes that are perpendicular to the first and second axes.
摘要:
A robot structure that has a base, at least a first arm that moves with respect to the base both in translation and in rotation, a movement mechanism for moving the first arm with respect to the base, a member for accepting a tool, and a power supply assembly. The movement mechanism includes a hollow member which moves in translation with respect to one of either the base or the first arm, while being incapable of translational movement independently of the other of the base or the first arm, and the hollow member being movable in rotation with respect to one of either the base or the first arm, while at the same time being incapable of rotational movement independently of the other of the base or the first arm.
摘要:
A yarn carrier structure upon which yarn is wound to form a yarn package includes an axially extended body having a cylindrical exterior surface formed about an axis and a through opening having at least first and second opposed surfaces for engagement by the fingers of a yarn package manipulating machine. Yarn entry ports are provided at one end of the yarn carrier structure and lead to internal passages for accepting and accommodating the leading and transfer tails of the yarn wound upon the yarn carrier structure. First and second slots are provided in the yarn carrier structure to facilitate mounting of the carrier on a utilizing machine. The position of the engagement and mounting surfaces relative to the yarn entry ports are known to provide a yarn carrier structure well suited for automatic machine manipulation.