Welding wire straightener
FIELD: plastic metal working.
SUBSTANCE: invention is designed for straightening annealed wire, diameter up to 3 mm. proposed device contains hollow cylinder secured in rotator and provided with axial holes in base to pull wire through. Device for forced moving off wire from axis of rotation of hollow cylinder is arranged in cylinder space. Cylinder space is partially filled with abrasive powder. Device for forced moving off of wire from axis of rotation of hollow cylinder is made in form of weight which can be mounted for movement on wire. Weight can be made in form of bushing with diameter of axial hole exceeding sum of diameter of wire and reduced diameter of wire and reduced diameters of two largest particles of abrasive powder. Cylinder space can be filled with abrasive powder at least by 30% of its volume.
EFFECT: reduced wire pulling force and provision of cleaning of wire from oxide film and surface contaminants.
5 cl, 5 dwg
The invention relates to a device for processing wire, namely, devices for straightening annealed wire, mainly with a diameter up to 3 mm
A device for straightening wire, consisting of a cylinder, the ends of which are made along the axis of the cylinder hole for pulling wire, and between the holes fixed curved wave spring, oil-impregnated, which overcomes the wire from the axis of the cylinder.
During rotation of the cylinder while pulling inside of the spring wire is repeated her inflection and eventually straightening (see A.S. USSR №195426, class B 21 F 1/02, 1967).
A disadvantage of this device is that using it inefficiently correct wire diameter less than 1.5 mm in Addition, this device is unsuitable for straightening wire, because of this correct device wire goes with traces of the oxide film obtained by annealing, and oil, which requires additional operations for its cleaning and degreasing.
It is also known similar device for straightening wire, containing multiply curved spring secured between the axial end openings of the cylinder (see A.S. USSR №704703, class B 21 F 1/02, 1979). This device allows to edit a wire diameter less than 1.5 mm, but it does not provide cleaning Prov is Loki from the oxide film and the lubricant, and this forces the manufacturer wire designed for welding operations, to carry out additional cleaning wires from the oxide film and oil, which entails an inevitable cost of purchasing specialized equipment and staff.
Known devices for straightening the wire closest to the number of essential features, coinciding with the characteristics of the claimed invention is the device according to the author's certificate of the USSR No. 195426, class B 21 F 1/02 from 1967, which is taken as a prototype.
The problem to which the invention is directed, is to develop a device for straightening, which would receive the wire, suitable immediately after corrections for use in welding without the use of additional processes to remove oxide and fatty films.
The technical result consists in the fact that the developed device for straightening wire diameter up to 3 mm does not require any lubrication, and the pulling force of the wire through the correct device is reduced compared to known methods, and in addition the wire during the drawing process is automatically cleared from the oxide film and the surface contamination, so that it can immediately be used for welding operations.
Specified technical is such a result is achieved by in the device for straightening welding wire containing enshrined in the rotator hollow cylinder, the basis of which is made of the axial hole for pulling wire and located in the cavity of the cylinder device for forced extraction of the wire from the axis of rotation of the cylinder, with the cylinder chamber partially filled with blasting powder, and a device for the forced extraction of the wire from the axis of rotation of the hollow cylinder made in the form of goods that has the ability, rolling attachment on the wire;
- in addition, goods made in the form of sleeve;
in addition, the sleeve is made with an axial hole, the diameter of which is greater than the sum of the wire diameter and the above two diameters of the largest particles of the abrasive powder;
in addition, the sleeve is made with a through hole in its wall arranged perpendicular to the axis of the sleeve with the intersection between an angle of 90°;
in addition, the cylinder chamber is filled with an abrasive powder is not less than 30% of the volume.
The most common ways of straightening wire diameter up to 3 mm are pulling it through a rotating device along its axis of rotation, while the inside one way or another wire press from the axis of rotation, causing the wire to deviate from the axis of rotation in the form of one the th or more gentle loops, which results in rotation of the device to multiple kinks in the wire, causing it always comes out of the rotating device straight along the entire length.
In all known methods of extraction of the wire during its transport through the correct device is carried out mainly by means of its rigid mechanical means from the axis of rotation is correct for the device. In known devices is practically not taken into account the interdependencies between the deflection wire from the axis of rotation of the device and its diameter, and between deflection and speed of the device.
In the inventive device, the extraction of the wire from the axis of rotation is correct devices in the form of a hollow cylinder is carried out using a relatively massive hub that before editing wear on the wire inside the cylinder. The mass of the sleeve is selected depending on the wire diameter, the larger the wire diameter, the greater the mass of the selected sleeve.
In the horizontal position and the stationary cylinder sleeve due to its weight pulls the wire down from the axis of rotation of the cylinder, on which the incoming and outgoing hole for pulling wire.
When the cylinder receives the rotation of the sleeve due to the resulting eccentricity starts to rotate together with the cylinder, and e is if the wire has not yet stretch, then due to the centrifugal force of the sleeve maximum press wire, and touches the cylinder wall. Simultaneously with the pushing on the wire sleeve in the cylinder fill abrasive powder is not less than 30% of the volume of the cavity of the cylinder.
During rotation of the cylinder powder due to centrifugal force is evenly distributed over the cylinder wall and thereby carries in rotation and the sleeve.
When the wire begins to extend through the rotating cylinder and the deflection value-pressed wire will be depending on the speed and mass of the sleeve to shrink.
When the variable speed device of abrasive powder, which is in the cavity of the cylinder, due to inertial forces and changes in the number of revolutions of the cylinder will always be in motion and to enter and exit holes of the sleeve perpendicular to the axis of the sleeve, and always be in the hole through which extends a wire. In the process of pulling the wire all the time rubbing on the inner surface of the sleeve and simultaneously pulled through the layer of abrasive powder, resulting wire is cleared from the oxide film, which could be formed on the wire surface as a result of its annealing, as well as from possible traces of various mud, including mixed with oils.
The extraction of the wire from the axis of rotation of the device by using the mA the son of the sleeve and the centrifugal force of its rotation together with the cylinder while pulling the wire makes this method quite flexible, as for wires of small diameter can be used sleeve small mass, and the wire diameter from 2 to 3 mm can be used bushings in the set, for example, in the amount of 3-5 pieces or one massive, equal to the mass number.
The invention is illustrated by drawings, where figure 1 shows a longitudinal section of the device with the wire and the load (sleeve) before you start editing. Rotator conventionally in the drawing are not shown.
Figure 2 shows the cross-section of the device is prepared for operation.
Figure 3 shows a longitudinal section of the device during rotation and pull welding wire through it, when the load (sleeve) due to the weight and the centrifugal force produced during rotation, press pulled the wire away from the axis of rotation of the device. Rotator conventionally not shown.
Figure 4 shows a transverse section of the device during its rotation and pull welding wire through it.
Figure 5 shows a longitudinal section of the device during rotation and pulling wire through it, when the goods are made in the form of a collet set. Rotator conventionally not shown.
Device for straightening welding wire includes a housing in the form of a cylindrical Cup 1 with the cover 3 and the load 2 in the form of a sleeve, which before editing movably attached to the wire 7. Palast the housing 1 is filled with an abrasive powder 4, designed to clean the surface of the wire in the process of pulling off the traces of the oxide film can be formed in the process of stabilizing annealing wire, and various kinds of dirt. On the bottom of the Cup 1 is made hollow console 6, designed to lock the device in the rotator, which in the drawings conventionally not shown.
To prevent deterioration of the abrasive powder from the cylinder bore through the axial bore at the inlet and exit of the wire from the Cup 1 and the cover 3 is made seals 5.
The device operates as follows.
To pass the wire through the device body 1 is installed in a vertical position with the console 6 down and remove the cover 3. Welding wire 7, which is designed for editing, missing from the console 6 through the seal 5 and further through the axial hole in the sleeve (cargo) 2. Cargo in the form of a sleeve is selected for simplicity and reliability of its movable mounting on the wire. The wire is pulled outside of the housing 1, after which the end of the wire 7 is passed through the cover 3, passing a wire through located in the cover 3 gasket 5. The cover 3 is closed and fixed to the housing 1.
After this the device from the console 6 is fixed in the rotator.
In terms of, for example, welding workshops as rotator you can use the great universal lathe. In this case, the console 6 is clamped in the Chuck of a lathe, and are fed into the device, the pre-wire is passed through the axial hole in the front of the headstock of the lathe (see figure 1 and figure 2).
The free end of the wire, passed through the device, fixed on the drum with manual transmission, and when the edit wire short length, for example, 5-10 m, its stretch manually with a speed of 2-3 m/min
Rotation device and the rotation of the drum takes place simultaneously.
In the drawings, figure 3 and figure 4 drum for winding wire conventionally not shown.
For the best surface cleaning wire from the oxide film and various surface contaminants rotation of the device is performed with variable speed, for example, in the range 200-100-200 rpm, etc. and the speed change is carried out in the range of 15-30 seconds.
Such a change in the speed of rotation of the device causes rotation of the cargo (ring) around the wire due to inertial processes in the form of the lag and lead of rotation of the cargo (the ring) relative to the rotation of the housing 1, and intensive mixing of the abrasive powder that ensures its active penetration into the Central hole of the ring, through which runs the wire.
The presence of additional through holes made perpendicular to the C bushings and intersecting at an angle of 90° reliably ensures the filling of the Central axial bore of the abrasive powder. The hole in the sleeve is chosen of such size that was not created conditions for jamming of the wire, in practice this hole perform 8-12 mm in diameter depending on the diameter of the wire.
The larger the wire diameter, the greater should be the mass of the sleeve. When you edit wires with a diameter of more than 2 mm using a set of bushings (see figure 5).
For heavily oxidized wire into the cavity of the housing 1 fill abrasive powder more than 60% of the volume of the cavity that provides intensive contact of the wire with abrasive powder and best clearance from the oxide film.
1. Device for straightening welding wire containing enshrined in the rotator hollow cylinder, the basis of which is made of the axial hole for pulling wire and located in the cavity of the cylinder device for forced extraction of the wire from the axis of rotation of the hollow cylinder, wherein the cylinder chamber is partially filled with an abrasive powder, and a device for the forced extraction of the wire from the axis of rotation of the hollow cylinder made in the form of goods that has the capability of rolling attachment on the wire.
2. The device according to claim 1, characterized in that the shipment is made in the form of a sleeve.
3. The device according to claim 2, otlichayushiesya, the bushing is made with an axial hole, the diameter of which is greater than the sum of the wire diameter and the above two diameters of the largest particles of the abrasive powder.
4. The device according to claim 2, characterized in that the sleeve is made with a through hole in its wall arranged perpendicular to the axis of the sleeve with the intersection between an angle of 90°.
5. The device according to claim 1, characterized in that the cylinder chamber is filled with an abrasive powder is not less than 30% of the volume.
FIELD: equipment for machining of wire by grinding, said equipment being used for rounding of rectangular section wire ribs and deburring of wires.
SUBSTANCE: apparatus for machining of wire has rotating abrasive wheels arranged in the course of feeding of wire. Apparatus is furnished with two mechanisms for twisting of wire around its axis in opposite directions. One of said mechanisms is disposed upstream of abrasive wheels in the course of feeding of wire, and other mechanism is disposed downstream of abrasive wheels. Each of said mechanisms consists of set of gears rotated by drive, with number of gears corresponding to number of wires which are simultaneously subjected to machining process. Gear is equipped with axial opening for passage of wire and has bypass roller mounted for free rotation thereon in plane extending through axis of gear.
EFFECT: enhanced reliability in operation of apparatus and improved quality of machined wires.
FIELD: processes and equipment for straightening welding wire.
SUBSTANCE: method comprises steps of drawing wire through coaxial holes arranged in base of hollow cylinder; shifting wire portion inside cylinder by predetermined value from cylinder axis; before straightening putting at least one sleeve on wire inside cylinder; partially filling cavity of hollow cylinder with abrasive powder; driving cylinder to rotation at variable revolution number around its axis.
EFFECT: enhanced quality of welding wire.
2 cl, 1 ex
FIELD: machine engineering, apparatuses for activating surface and cleaning wire or round rolled piece, mainly at preparing them to application of metallic coating.
SUBSTANCE: hollow rotary shaft is mounted in base and it has at least one working unit in the form of two rotating abrasive end members mounted at opposite sides of shaft with possibility of lengthwise motion along axis normal to shaft and with possibility of introducing into cavity of shaft. Said abrasive members rotating around their own axis and around cleaned article provide abrasive action upon article surface.
EFFECT: possibility for selecting mode of cleaning due to matching revolution numbers of abrasive members and product feed and due to intensified action of abrasive members upon cleaned surface caused by their grain size.
5 cl, 2 dwg