SU446130A3 - Needle picker on inhole machine - Google Patents

Description

(54) DEVICE FOR SELECTING NEEDLES ON A KNITTING MACHINE

The invention relates to a knitting machine industry. A device for withdrawing needles in a valer machine is known, which contains movable hubs 1 spruce mounted in the grooves of the needle under the needles, mounted with the ability to interact with the base needles and engaged with the controls of wedges of locks, and control vibro elements for bending pushers made for example from piezoelectric material. The goal of the acquisition is to simplify the construction of ycipoHCTBa. This is due to the fact that vibroelements are reinforced in the needle bed console and located below the needle rods, and their free ends have the ability to interact with the base of the pushers. In order to prevent wear of the free ends of the air elements, the latter are provided with nredoh 11 caps. Vibration modifiers can also be operated from the bases of the pushers by means of intermediate plates mounted in needle bar positions with the possibility of radial deflection. In order to improve the quality of the O1-boron, the device has guides for limiting the movement of free 1x ends of vibroelements, electrically connected} first to a non-voltage point. FIG. 1 is a diagram of the interaction of push-offs with wedges of the castle in the process of picking needles; in fig. 2-8 - sections of the device along A-A, BB, B-B, G-D, D-D, E-B, F-F in FIG. one; in fig. 9 is an embodiment of the device lock wedges; in fig-. 1U is shown in FIG. 9; in fig. 11 - vbroelement. A device for picking needles in a swiveling machine contains stationary pushers 1 installed in the slots of the needle bed 2 and iodine needles 3, mounted with the possibility of interacting with the bases of 4 needles and the entrance is located in the rear section 5 of the head with control wedges zimkov. The pusteln 1 is spring-loaded with a spring 7, the vibro-elements 8 are fixed in the needle bed console and located across the rods of the needles 3, and their free ends 9 can interact with the bases of the push rod 1 using intermediate plates mounted in the slots of the needle bed 2 with the possibility of radial deflection. The free ends 9 of vibro elements 8 are equipped with safety caps 11. The device has guides 12 for restricting the movement of the free ends 9 of vibro elements 8. The guides 12 are electrically connected with a voltage source, which is mainly supplied at the moment the machine stops. Guides 1 serve to hold the free ends 9 vibro elements 8, when vibro elements are transferred to the selection position, and the pushers 1 have not yet come into contact with the base of the needles 3. In accordance with the second design variant (Fig. 9, U) vibro elements $ They are contacted directly from the bases of the pushers 1. At the moment of picking up, 5 pushers 1 are sent along channel 13, thereby raising the needles to a conclusion (hold up), or through channel 14, not raising the pushers and, accordingly, needles ). Channels 13 and 14 are formed by wedges 15, 16, 17. In the area of the section along the AND-I in FIG. 9, the pushers are taken into channel 13 or 14, respectively. The vibroelements 8 can consist of multilayer bimetallic, electrostrictive, magnetostrictive, natural or artificial plates. The vibrocell 8 (Fig. 11) consists of two magnetostriction plates 18 and 19, which under the action of a magnetic field formed by the coil 20, bend. In the case of using bimetallic plates, a similar effect is achieved due to the different thermal expansion of each plate. The proposed needle pickup device can be used on round and flat machines in needle machines with individually movable needles. According to the program, the vibrocell 8 is energized, as a result of which it bends and rests on the guides 12 The periodic change of the poles causes the vibrocell 8 to oscillate. The weave 5 leaves the control slot of the wedge 6 and the plunger 1 does not lift the needle 3 to the confinement position. In the case when the vibrocell 8; is pressed upwards, its free end 9 abuts against the lower part of the plate 1O; : not allowing the pusher 1 to turn (Fig. 7). The pusher 5 pusher 1 does not (LEAVE from the channel in the locks, and the pusher rises up, in turn, raises; a variant with direct contact of vibroelements with needle bases without intermediate pushers (Fig. 9, 10). Pushers 1 are installed with the possibility of reciprocating movement. P ry 5 lifts up the wedge 16, in the area of selection the vibro 8 is bent or remains just by basing the pusher 1. In the first case, pt 5 will go through channel 14 and will not be in the low, in the second case, 5 pusher will go on channel 13, lifting the needle to the conclusion. Wedge 17 serves to raise the n 5. To accelerate the lowering of the current 5 in the zone (a spring can be installed between the elbows and the wedges of the lock.) Subject of the invention 1. A device for picking up needles in a vial mask containing movable followers mounted in the slots of the needle bar under the needles with needle bases and hooks control wedges -j of the locks, and control vibroelements made, for example, of a piezoelectric material, characterized in that, in order to simplify the design, vibroelements are fixed in the needle case and located below the needle rods, and their free ends have the ability to interact with the bases of the pushers. 2. The device according to claim 1, wherein the free end of the vibrating elements is provided with safety j caps. i 3. The device is pop, 1, I distinguish that with the fact that the vibro elements have

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ability to interact with the base- 4. Device pop. 1, which distinguishes the pushers by means of spacing so that it has flat plates mounted in the plowway to limit the movement of the free-living quarters with the possibility of radial ends of vibroelements electrically

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