SU1326379A1 - Straightening and cutting-off automatic machine - Google Patents

Abstract

The invention allows to increase the productivity and service life of a straightening machine. The machine is equipped with two correct frames 2 and a common drive for the correct device and feed mechanism 15. The feed mechanism 3 is made with two-way rollers mounted on the ends of the shafts. The upper shafts of 2 7 W Г9 С / Г rollers are mounted in spring-loaded underpins, the housings of which are rigidly connected to the plate 19. The cutting mechanism 4 contains a carriage movable along the wire feed axis, with two stub blades 24 mounted on the carriage, roller knives 26, mounted on the brackets of the two shoulders slider 25, and a movable stop element connected to the switch of the cutting mechanism drive. The drive of the cutting mechanism is made in the form of rods rigidly connected to the cross bar 28 and to the connecting rod 30 of the curved 1pipno-p1atunny mechanism. The cutting mechanism is additionally equipped with a receiving device made in the form of a frame fixed on the slider, and a traverse with bent edges fixed on the crossbar. 5 il. 4 hp f-ly. 20 22, 21 & sl J / VI 3 / | D 3SW /, L, X p7 /, NW tJ O X / 00 0 0 with co / 7J 5 36 3521 G figl

Description

H: j ;, - reHne refers to the treatment of 1.1; and; , 1., - | eii in particular, to the correct ii (j. M:; i, v; automaton.

and. || Cho of the invention is the innovation of hi-performance and life of the machine.

FIG. 1 picture of the kinematic scheme of the car, the mat; in fig. 2 is a section A - A in FIG. one; in fig. 3 is a section BB in FIG. one; in fig. 4 - nanofil ring grooves on the nuvrodnyh rollers; in fig. 5 - the cutting mechanism.

The machine contains a frame 1, on which a moral device 2 is mounted: a roller feed mechanism 3, a cutting mechanism 4, two drives 5 and 6, two regular drums 7 connected to the drive 5 of a V-belt drive 8.

The conveyance feed 3 is made with a two-sided arrangement of the drive rollers 9, two pairs on each side attached to the ends of the shaft 10 and 11, connected by gears 12 with a common drive shaft 13, which, in turn, is connected by a chain gear 14, a gearbox 15 and a coupling 16 with a drive 5. The upper shafts 11 are mounted in sub-springs 17 spring-loaded from above, the housings of which 18 are rigidly connected by a plate 19 by shanks 19. In the middle of the plate 19 a threaded plate 20 is installed, supporting on the case 2 of the feed mechanism . At the upper end of the end of the fifth 20, the handwheel 22 is fastened, the rotation of which is the raising and lowering - plates 19 and associated with it the upper shaft i1 with the drive rollers 9 at the ends. Instead of the handwheel 22, a removable handle or a wrench can be used. The annular grooves on the outer cylindrical surfaces of the drive rollers 9 are made with a profile angle of 120 °. In the car, the reduction of the contact lines in the supply mechanism is achieved due to the additional sluggish drive line 11.; xpo, HtKUii and the optimum clamping force, which is determined by the selection and adjustment of the springs 23.

. (The cutting frame 4 is made in the form of a carriage and contains stubbing knives 24 secured in the threaded holes of the carriage, two shoulders spring-loaded creep 25, carrying roller knives 26 on the brackets and mounted in the slot of the carriage and located in the vertical holes of the slide block 25 and the carriage two rods 27, the upper ends of which are rigidly connected by a cross-piece 28, the nasunhei on them are the pushers 29, and the lower ones ---: a; 1nirno connected to the connecting rod 30 of the curved-PI-but-paired mechanism. On the eccentric VA, 1st 31 of this mechanism .ma installation of clutch-brake 32 and swings is mounted 33, associated with the V-belt transmission 34 with water 6. The sleeve knives 24 are made with external thread and non-glossy holes at the inlet, connected with directional six-sided sleeves 35 and a piece

five

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0 5

five

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36, ensuring their precise installation in the cutting plane and fixing the position. The sleeves 35 have axial holes for the passage of the wire. Roller knives 26 set., 1Е1Ц 1 with with, the axels are centered, refer to the axes 1 of the cutting knives 24, which provides them with the possibility of angular turning during the cutting process and a significant increase in the durability of work without sharpening the cutting edges. The durability of knives is also achieved by repeated sharpening them - by grinding the ends. A stop 37 is provided in the cutting mechanism, carrying a final switch 38 and two pressure bars 39 in contact with the switch 38. The stop 37 can mix along the carriage 4, and ei o pole-1e is fixed by screw clamps 40 at any distance from the cutting plane depending on the given length of the workpiece. The cutting mechanism is equipped with a receiving device, convoluted in the form of a frame 41 with guided channels for passing the wire, fixed on the slider 25, and crossheads 42 with bent edges that cover the channels below, fixed on the crossbar 28. There are several sizes devices for blanks of different lengths. For short blanks, only frame 41 (without cross bar 42) is drunk with guide channels open at the bottom (Fig.).

To control the machine, a typical control unit BUB-1A is used, in which an additional start-up control unit is mounted, and the equipment for the drive 5.

The machine works as follows.

Before starting work to wire the wire, the upper drive rollers 9 are moved to the upper position of the turn of the handwheel 22 to the right, and the eccentric shaft 31 is set to the upper dead center by turning the handwheel 33 manually using a crowbar. The wire is threaded through the axial holes li of the right-handed elements 43 of the correct device 2, through the grooves between the upper and lower driving holes, feed mechanism 3, through the temper; Hub bushing 35 and vtu; 1 Ochnye knives 24. Mechanism 4 cutting. Then, turning the handwheel 22 to the left lowers the upper drive rollers 9, which, under the action of the springs 23, clamp the wire in their grooves (Fig. 4). the curvature of the correct elements 43 in the drums 7 is adjusted.

Electroolt, motor 6 through V-belt drive 34 rotates the flywheel 33, e: 1 spectro engine 5 through the V-belt drive. 8 gear rotates the correct drums 7, as well as through the gearbox 15, the chain gear 14, the drive shaft 13 and gear 12 transmits the rotation of the drive roller .m 9, carried out a temper and a continuous, two-line feed of the wire into the cutting mechanism 4. The cutting mechanism 4 is activated automatically when the clutch is turned on) mosaic 32.

When operating in single-stroke mode, the wire, having passed through the channels of the frame 41 of the receiving device, presses the strips 39, which, in turn, press the limit switch 38, while operating the clutch-brake 32 and the eccentric shaft 31 makes one turn, transferring the reciprocating movement of the movable parts of the cutting mechanism. During downward movement, the pushers 29 are removed along the shoulders of the slider 25, which, together with the roller blades 26, make a short working stroke, the roller knives 26 cut the wire, turning around their axes 44 at a small angle. When running upward, the slider 25 under the action of the spring 45 returns to its original position. During the downward movement along with the transverse 28, the traverse 42 makes a full stroke, opening the channels for resetting the cut blanks, and at the end of the downward movement, together with the slider 25, the frame 41 makes a short stroke, ensuring the directional discharge of the cut off blanks into the container through the inclined tray. During the period of activation and actuation of the clutch-brake 32, the carriage of the cutting mechanism 4 under the pressure of the moving wire moves along with it retaining a predetermined length of wire segments between the cutting plane and the stop 37. After cutting and resetting the cut wire, the interlock carriage 4 of the cutting 4 returns to its original position under the action of the load connected with the carriage by a rope over the block.

The next time you press the strips 39, the cycle is repeated.

In the mode of continuous strokes, with the coupling-brake 32 permanently engaged, the number of strokes of the cutting mechanism is equal to the number of revolutions of the continuously rotating flywheel 33.

Claims (5)

Invention Formula . The correct-cutting machine containing the correct drum mounted on the frame, the roller feed mechanism and the drive-cutting mechanism, including fixed and movable knives, are distinguished by the fact that, in order to increase the productivity and service life of the machine. it is equipped with an additional right drum, a set of feed rollers and a common drive for the correct drums and feed mechanism, the feed mechanism, the upper rollers of which are spring-loaded, is designed with two-sided arrangement on common drive shafts of feed rollers having annular grooves on the outer cylindrical surfaces, a mechanism cutting is equipped with a carriage mounted for movement along the wire feed axis, and includes knives fixed in the threaded holes of the carriage, which are made in the form of volts A block mounted on the carriage can be moved in the cutting plane by a spring-loaded slider, on the consoles of which there are knives made in the form of rollers and two shafts located in the vertical holes of the slider and carriage, the upper ends of which are rigidly connected by a cross bar bearing pushers on it, installed with the possibility of interaction with the slide, and the lower ends of the rods are pivotally connected to the drive, which is made in the form of a crank-connecting rod mechanism. 2. An automatic machine according to claim 1, characterized in that the annular grooves on the outer surfaces of the drive rollers are made with a profile angle 120. 3. The automaton according to claim 1, characterized in that the cutting mechanism is provided with a stop mounted on the carriage capable of controlling the movement, carrying a limit switch and two pressure bars for interacting with the limit switch m and the supplied wire. 4. An automaton according to claim 1, characterized in that the cutting mechanism is provided with a receiving device made in the form of a frame fixed on the slider with guide channels for the passage of wires and a traverse attached to the cross member with bent edges overlapping the above channels. 5. An automatic machine according to claim 1, characterized in that the roller knives are mounted with the displacement of their axes of the knives, made in the form of sleeves. 4-D dusted 4Z 26 z FIG. 2 fig.Z fug. Editor K. Krupnina Order 3226/9 Compiled by A. Kseiofoitov Tehred I. Veres Corrector A. Ilyin Circulation 582 Subscription VNIIPI 1 of the USSR State Committee on Inventions and Discoveries 1 КЮ35, Moscow. G 35, Raushská Mab., 4/5 Production and Printing Enterprise, Uzhgorod, unitary enterprise Project, 4 (pi / e. 5