SU1042851A1 - Apparatus for feeding blanks into tube bending machine - Google Patents

Abstract

I. DEVICE FOR SUBMITTING PLANTS INTO THE PIPE BENDING MACHINE, SOD, JAL

Description

The invention relates to the mechanization of mechanical engineering, in particular, to designs of loading devices for pipe bending machines. The feeding device to the pipe bending machine, holding the tray, is known. cut-off, roller-type feeder and articulated hinge jack GI The disadvantage of the device is its bulkiness. As a result, the device occupies a considerable part of the working area at the end bending machine, which limits the technological capabilities of the machine when bending the legs with a complex bend in several planes. A device for feeding workpieces into a pipe bending machine, containing a stellans drive, a metering device and a rotary lever with a drive in the form of a power cylinder, at the end of which a mechanism for gripping workpieces 2j is mounted, is known. The mechanism for gripping workpieces complicates the design of a well-known mouth. The need to move the workpiece along a long arc of a circle when transferring it from the rack to the pipe bending machine leads to an increase in the time spent on feeding the product into the treatment area, which negatively affects the performance of the bending products. The purpose of the invention is to increase. device performance as well as automating donning a pipe on the mandrel of a pipe bending machine. This goal is achieved by the fact that in the device for supplying slab preparations to a pipe bending machine, which contains a stele launcher, dispenser and rotary lever with a drive in the input of the power cylinder, equipped with a mechanism for orientation of the workpiece, the lever is made of two pieces of limiting the pivot angle of the parts relative to each other, and is set obliquely relative to the rack. The mechanism of orientation of the workpiece is mounted with the ability to move along the lever and is made in the form of forming roller conveyors, vertical and horizontal drive rollers. FIG. 1 shows a schematic representation of the proposed device for feeding a common VIEW billet of FIG. 2 - the same, top view; in fig. 3 shows a section A in FIG. 1} in FIG. 4 — section B — B in FIG. 1} in FIG. 5 shows a section B-B in FIG. on fng. node I in FIG. I; in fig. 7 - section G-Y in FIG. 6. A device for feeding workpieces into a pipe bending machine contains a hopper I, equipped with a dispenser 2, table-nakrlTEL 3 and a lever 4 mounted to be rotated around the axis o by means of a hinged pin on the base 6 of a gddishshindra 7. The bunker t is made in the form of a flexible element, for example chains 8, one ends of which are fixedly fixed, while others are thrown over asterisks 9 and connected to cylindrical cylinders IO. The lever 4 consists of several rigidly fastened memsh with beams of II strips 12 Each strip 12 is complete from channels soedinshnzh form of two hinged parts 13 and 14. Part 13 of the lever 4 are portions 15 gorizoktelnoy steep slope to the plane, e.g., at 30-Bo, and portions 16 with a pore naklonsm dka5-15 °, Strips 12 are joined with the rack 3 so | that form with it a common inclined plane. Between themselves parts 13 and 14 of the cable with axis 17, on which are mounted the bushes 18, welded to parts 13, and bushes 19, welded to parts 14, On the parts 14, there are fixed lugs 2O on the top, and lugs 21 from above, limiting the angle of rotation of the parts of the lever 4 relative to each other. At the ends of the outermost sidebands 1,2 in the rails 22, a platform 23 is installed, which has the ability to move along the lever 4 by means of nuts 24 fixed on the strips 12 and screws 25 connected with the platform 23 by brackets 26. At the platform 23 there is a driving gearbox 27, soyunctions rotation of the worm shaft 28. With the shaft 28, gear 29, mounted on the axes 30 of the horizontal rollers 31, and six gears 32 mounted on the axes 33 of the vertical rollers 34, are engaged. simultaneously perform the functions stop-limiting l for blanks. Instead of rollers 31 and 34, conventional pins mounted on the platform 23 or directly on the strips 12 can also be used as such stops. The position 35 denotes a pipe bending machine, having a bending pattern 36, a clamping mechanism 37 and a mandrel 38, a device for feeding blanks to a pipe bending machine. The machine works the following way.

In the initial position, the bunker I is loaded with blanks 39, and the pivot 4 is supported by its end on the base 6 so that the sections 16 and parts 14 of the strips t2 are located in the same plane, s

and the portions 15 are coupled with the rack 3, as shown in FIG. I. Location

Sections 16 and parts 14 in the same plane are provided by stops 20, which abut against part 13 of section 4 and prevent reversal of parts 14 relative to axis 17 against clockwise movement. After switching on the forces of the cylinders 1O, the flexible element 8 is tensioned and the workpieces 39 are displaced onto the rack-drive 3, located on it in a row. At the operator's command the dispenser 2 is turned on, one section 39 is cut from a row around; That inclined - site 15 levers 4, 20

acquires the necessary acceleration and then moves along section 16 all the way to the vertical rollers 34. Holding the workpiece 39 near the rollers 34 is ensured by gently tilting the teaching: 25 25 16 to the horizontal plane. After the final stopping of the workpiece 39, the hydraulic cylinder 7 and the turning lever 4 around the axis 5 are activated.

below, the yoke itself is suspended by a spigot, a zogkovyy 39 parts 14 strip 12 rotate around the axis t7 clockwise center

as long as the stops 21, limiting the angle of rotation of the parts of the lever 4, do not / come into contact with parts 13. The stroke of the hydraulic cylinder 7 is designed so that the workpiece 39 is moved to the level of the groove of the bending template 36, depending on the diameter of the template 36, the position of the workpiece 39 about its axis of growth is pre-adjusted with screws 25, which move the platform 23 along the lever 4.

When the axis of the workpiece 39 is opposite to the axis of the drrna 38, the drive gearbox 27 is turned on. The worm gear revolves: shaft 28. drives gears 29 and 32, which transmit torque to the horizontal rollers 31 and vertical rollers 34. The rollers 31 and 34 produce longitudinal feed; billet 39, putting it on the mandrel 38. Thereafter, the hydraulic cylinder 7 returns the lever 4 to its original position, with part 14 waving its end into the base 6 and turning around axis 17 counterclockwise until the stops 2O touch part 13, and parts 13 and 14 do not join, forming a common plane. Thus, the device is prepared for the next cycle of operation.

The invention provides improved performance.

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Claims (2)

1. DEVICE FOR SUBMITTING PREPARATIONS IN A TUBING MACHINE, containing a storage rack ”dispenser and pivot arm with drive · in the form of a power cylinder; equipped with a workpiece orientation mechanism, characterized in that "in order to increase productivity, the lever is made of two articulated parts equipped with stops to limit the angle of rotation of the parts relative to each other? and installed obliquely relative to the rack. 2. The device according to c. I, t l and characterized in that the mechanism is orientational ^; tion of the workpiece is mounted with the possibility of movement along the lever and is made in the form of vertical and horizontal drive rollers forming roller conveyors. §