Intermediate drive

FIELD: process engineering.

SUBSTANCE: proposed device comprises two sets of drive elements, arranged at regular intervals so that elements of one set face gaps between elements of another set. Pulsating lengthwise strains in wire are generated per one revolution of the drive thanks to that the base moving lengthwise accommodates the first set of said drive elements and bell crank hinged thereto. Second set of drive elements is arranged on first arm of bell crank. Second arm of said bell crank is furnished with inertia load and arranged across feed direction so that delay of inertia element fitted thereon, when drive elements move in feed direction, makes sets of drive elements approach. Inertia element is arranged on second arm to move and be adjusted thereon. Above described drive of aforesaid sets of drive elements cab reciprocate.

EFFECT: simplified design.

3 dwg

 

The invention relates to the processing of metals by pressure and can be used as an intermediate traction device drawing machine.

Known intermediate traction device wiredrawing machines for multiple wire drawing, made in the form of two groups of traction elements - driving rollers arranged in series with gaps, so that the rollers of one group are against the intervals between the rollers of the other group. The wire is passed between the groups of rollers and turn around the rollers of both groups, is located in waves. Rollers, rotating, pulling the wire. By changing the distance between the groups of rollers you can change the angle of coverage of each clip wire and thereby smoothly and in a wide range to adjust the pulling force created by the device (RU # 2235615, VS 1/02, publ. 2004).

The closest is the intermediate traction device containing two groups of periodically spaced traction elements - rods, and the rods of one group are against the intervals between the rods of the other group, the drive movement of the rods and means for traction control (RU # 2301193, B66D 1/02, publ. 2007).

The wire is located between the groups of rods in waves, alternately around the rods, so their movement is created t is nudee effort. In this device, the actuators move the rods in the form of chain Elevator and traction control is one of a chain of elevators installed with the possibility of lateral movement or rotation relative to the axis of the drive sprocket to change the angle of wrap of the wire rods.

The technical result of the invention is to simplify the construction of the intermediate traction device.

This is achieved in that the intermediate traction device containing two groups of traction elements periodically arranged so that the elements of one group are against the gaps between the elements of the other group, the actuator moving items, as well as a means of traction control, according to the invention equipped with two shoulders lever mounted to rotate relative to the first group of traction elements, second group of traction elements are made on the first lever arm, the second arm of the lever is equipped with an inertia element and placed transversely to the feed direction so that the gap is installed on it, the inertial element when moving groups of traction elements in the feed direction leads to convergence groups of traction elements, while the inertial element is set to the second shoulder movable with adjustable position, and the actuator groupthey items made with the possibility of their reciprocating movement.

The invention is illustrated by drawings, where figure 1 shows a General view of the intermediate traction device; Fig 2 is the same, with a different location of the inertial element; figure 3 schematically shows a drawing machine with two intermediate traction devices.

Intermediate traction device consists of a movable in the longitudinal direction of the base 1, a wavy upper surface of which forms a first group of traction elements 2 and the lever mounted on the base by means of a hinge 3. Wavy bottom surface of the first shoulder 4 of the lever forms a second group of traction elements 5, each of which is located against the gap between the respective traction elements 2 of the first group. The second arm 6 of the lever is located transversely to the feed direction of the wire 7. When placing the hinge in the end groups of traction elements (figure 1) shoulder 6 must be directed upwards. When placing the hinge in the early groups of traction elements (figure 2) shoulder 6 must be pointing down. On the shoulder 6 is screw threaded and has an inertial element - massive nut 8. The traction device includes an actuator 9 for reciprocating movement of the base 1 along the feed direction of the wire 7. Each gap between adjacent dies 10 and 11 of the drawing machine can be equipped with one or n is the number of intermediate traction devices 12 and 13. The ultimate traction device drawing machine is winding drum 14.

In the process of wire drawing intermediate traction devices 12 and 13 make reciprocating movement in mutually opposite directions. When the traction device is moving in the direction of wire feed, his arm is rotated under the action of forces of inertia of the element 8, by clamping the wire and tension (POS figure 3). The degree of clamping of the wire and created by the traction device is regulated by the position of its inertial element, i.e. by turning the nut 8. When the traction device is moving in the direction opposite the wire, his arm is rotated in the opposite direction, releasing the wire (pos.12 figure 3). Thus twice per rotation of the actuator in the wire creates pulsating longitudinal tension, which, as determined experimentally, reduce friction lug. At the same time reduces the load on the drum 4, which is the main traction body drawing machine. The total tension in the wire is reduced due to its distribution and reduced breakage, which significantly improves the reliability and performance when multi-line drawing.

Intermediate traction device in localno machine, contains two groups of traction elements periodically arranged so that the elements of one group are against the gaps between the elements of the other group, the actuator moving groups of traction elements, and means traction control, characterized in that it is provided with two shoulders lever mounted to rotate relative to the first group of traction elements, second group of traction elements are made on the first lever, the second lever arm is movable, with the possibility to adjust its position, set the inertial member, the second arm of the lever is placed transversely to the feed direction to approach groups of traction elements due to the lag of the inertial element in moving groups of traction elements in the feed direction, and the drive movement of groups of traction elements are made with the possibility of reciprocation.



 

Same patents:

Drawing machine // 2385195

FIELD: process engineering.

SUBSTANCE: die-head blocks (1) with drawing dies (2) are mounted along the feed of every wire (3). Pulsating lengthwise strains that reduce drawing friction result from making intermediate gear device consisting of drive crankshaft (5), rods (6) and two frames (7)moving in lengthwise direction and supporting clamps (8) that grip wise in feed direction and let it pass in back direction, and generate pulsating lengthwise strains in said wire two times per one crankshaft revolution. At the same time, load on drum (4) is reduced, said drum making the main drive member of drawing machine.

EFFECT: simplified design.

2 cl, 1 dwg

FIELD: plastic metal working, possibly manufacture of different types of tubes.

SUBSTANCE: apparatus includes draw plate holder in the form of rod with through cavity for mounting draw plate; source of radial ultrasonic oscillations secured to draw plate holder and embracing draw plate. Apparatus is also provided with second source of radial ultrasonic oscillations secured to outer surface of draw plate holder and with second draw plate mounted in cavity of draw plate holder on the same axis as first draw plate. Length of draw plate holder consists of 0.2 -0.45 of length of longitudinal ultrasound wave inside its material. Draw plate holder includes two mutually joined cone portions. Length of source of ultrasonic oscillations consists of 14 - 40% of draw plate holder length. Both draw plates are mounted in such a way that distance between their centers consists of 0.057 - 0.154 of length of longitudinal ultrasound wave in material of holder. Working surface of each source of ultrasonic oscillations has conicity degree corresponding to conicity of outer surface of draw plate holder and it is normalized by means of given mathematical relation. Invention lowers risk of tube rupture due to stabilized drawing effort at stable mode of drawing that is achieved in the result of providing resonance frequency band of apparatus and lowered number of frequency errors for each source of ultrasonic oscillations.

EFFECT: increased yield of apparatus.

7 cl, 4 dwg, 2 ex

Drawing bench // 2270071

FIELD: drawing processes and equipment, namely manufacture of hardware for making wire by drawing.

SUBSTANCE: drawing bench includes housing; arranged in it traction drum with reversing drive; two driven reversing unwinding-winding units with bobbins and draw plate holder. According to invention axes of unwinding-winding units are parallel to axis of traction drum and they are shifted relative to it for providing possibility for crossing by angle 60 - 120° wire branch climbing on drum and wire branch descending from it. Draw plate holder is in the form of tie rod with two rows of seats crossing in pairs by angle 60 - 120° in its cross section. In said seats along their axes draw plates are placed. Tie rod is mounted with possibility of moving on guides in parallel to drum axis and it is provided with means for fixing it in working positions corresponding to alternating matching of axes of draw plates with climbing wire branch. Between said seats in each row there are parallel to seat through openings for descending wire branch.

EFFECT: improved design providing combined in one unit function of draw plate holder and mechanism for automatically changing draw plates.

4 cl, 2 dwg

Drawing bench // 2270071

FIELD: drawing processes and equipment, namely manufacture of hardware for making wire by drawing.

SUBSTANCE: drawing bench includes housing; arranged in it traction drum with reversing drive; two driven reversing unwinding-winding units with bobbins and draw plate holder. According to invention axes of unwinding-winding units are parallel to axis of traction drum and they are shifted relative to it for providing possibility for crossing by angle 60 - 120° wire branch climbing on drum and wire branch descending from it. Draw plate holder is in the form of tie rod with two rows of seats crossing in pairs by angle 60 - 120° in its cross section. In said seats along their axes draw plates are placed. Tie rod is mounted with possibility of moving on guides in parallel to drum axis and it is provided with means for fixing it in working positions corresponding to alternating matching of axes of draw plates with climbing wire branch. Between said seats in each row there are parallel to seat through openings for descending wire branch.

EFFECT: improved design providing combined in one unit function of draw plate holder and mechanism for automatically changing draw plates.

4 cl, 2 dwg

FIELD: plastic metal working, possibly manufacture of different types of tubes.

SUBSTANCE: apparatus includes draw plate holder in the form of rod with through cavity for mounting draw plate; source of radial ultrasonic oscillations secured to draw plate holder and embracing draw plate. Apparatus is also provided with second source of radial ultrasonic oscillations secured to outer surface of draw plate holder and with second draw plate mounted in cavity of draw plate holder on the same axis as first draw plate. Length of draw plate holder consists of 0.2 -0.45 of length of longitudinal ultrasound wave inside its material. Draw plate holder includes two mutually joined cone portions. Length of source of ultrasonic oscillations consists of 14 - 40% of draw plate holder length. Both draw plates are mounted in such a way that distance between their centers consists of 0.057 - 0.154 of length of longitudinal ultrasound wave in material of holder. Working surface of each source of ultrasonic oscillations has conicity degree corresponding to conicity of outer surface of draw plate holder and it is normalized by means of given mathematical relation. Invention lowers risk of tube rupture due to stabilized drawing effort at stable mode of drawing that is achieved in the result of providing resonance frequency band of apparatus and lowered number of frequency errors for each source of ultrasonic oscillations.

EFFECT: increased yield of apparatus.

7 cl, 4 dwg, 2 ex

Drawing machine // 2385195

FIELD: process engineering.

SUBSTANCE: die-head blocks (1) with drawing dies (2) are mounted along the feed of every wire (3). Pulsating lengthwise strains that reduce drawing friction result from making intermediate gear device consisting of drive crankshaft (5), rods (6) and two frames (7)moving in lengthwise direction and supporting clamps (8) that grip wise in feed direction and let it pass in back direction, and generate pulsating lengthwise strains in said wire two times per one crankshaft revolution. At the same time, load on drum (4) is reduced, said drum making the main drive member of drawing machine.

EFFECT: simplified design.

2 cl, 1 dwg

Intermediate drive // 2385196

FIELD: process engineering.

SUBSTANCE: proposed device comprises two sets of drive elements, arranged at regular intervals so that elements of one set face gaps between elements of another set. Pulsating lengthwise strains in wire are generated per one revolution of the drive thanks to that the base moving lengthwise accommodates the first set of said drive elements and bell crank hinged thereto. Second set of drive elements is arranged on first arm of bell crank. Second arm of said bell crank is furnished with inertia load and arranged across feed direction so that delay of inertia element fitted thereon, when drive elements move in feed direction, makes sets of drive elements approach. Inertia element is arranged on second arm to move and be adjusted thereon. Above described drive of aforesaid sets of drive elements cab reciprocate.

EFFECT: simplified design.

3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and may be used in making semis or rods and wire with ultra fine structure. Proposed method comprises deformation of long metal by drawing via two aligned and fixed tape dies with extra shearing by simultaneous alternating bending and twisting about metal lengthwise axis. Note here that metal axial speed and that of its rotation in area between fibers are kept constant.

EFFECT: expanded processing performances, higher physical properties.

1 dwg, 1 tbl

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