• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a grid welding machine operating on the electrical resistance welding principle and having continuous forward feed of the longitudinal wires. Groups of rotary electrodes and counter-electrodes cooperate in pairs and are arranged above and below the feed path of the longitudinal wires respectively. The electrodes and counter-electrodes are formed as rollers, opposite each electrode roller on the far side of the feed path of the longitudinal wires a counter-electrode being disposed in the same plane. The electrode rollers are spring-loaded individually in the direction towards the associated counterelectrode roller. Between the counter-electrode rollers and coaxially therewith there are arranged substantially circular cross-wire feed discs each having a number of grooves provided at angular intervals along the periphery of said disc for receiving said cross-wires. The feed discs are fixed for rotation on a driving shaft and the counter-electrodes are mounted on and rotatable relative to the driving shaft.
    公开号:SU1047380A3
    申请号:SU782585298
    申请日:1978-03-01
    公开日:1983-10-07
    发明作者:Гетт Ханс；Риттер Герхард；Риттер Клаус；Риттер Йозеф
    申请人:Эфг Энтвиклюнгс-Унд Фервертунгс-Гезельшафт Мбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to welding, in particular to machines for welding lattices by the method of resistance with continuous feeding of longitudinal wire and can be used in construction and other industrial sectors. A known machine for welding grids in which the welding and opposing electrodes are made in the form of rods placed in cylindrical drums arranged in a row along the longitudinal axis of the fabricated grid, and inside the drum carrying the active electrodes there is a welding transformer connected to the electrodes, while the opposite electrodes, placed in another drum, are made in the form of spring-loaded passive jumpers used in butt welding by melting. Each individual series of electrodes is provided with a transverse wire holder, and on the drum carrying the electrodes there are coilers for rotating the transverse wire and feed drives which, during rotation of the drum, coil the wire from the coilers, and feed it to the transverse wire holder. The transverse wires tucked into the holders are cut by means of jointly rotating scissors and then fed from the holders in the direction of the corresponding row of electrodes to the curved portion of the feeding device, which is relatively oi relative to the device that feeds the longitudinal wire Cl 3 The known machine has a relatively complex and requiring a lot of space the design and is distinguished by relatively large moving masses, since each row of electrodes must have its own holder peppermint wire. Closest to the present invention is a machine for welding gratings by the method of resistance with continuous feeding of longitudinal wires, containing upper welding rollers and discs with grooves for cross-wire feeding, lower welding rollers, spring-loaded relative to the upper ones, feeding mechanism the long wire mounted on the water shaft and the mechanism for changing the step of feeding the transverse wire 2. The disadvantage of this machine is that the grate is transported with omoschyu rotating the upper and lower rollers so. The distance chosen between the upper wire is four times greater than 50 mm, which narrows the range: pitch adjustment, cross wire feed. Since in this machine, the cross wire feed mechanism and the counter electrode rollers have a common drive, during each welding process, the same places of opposite rollers are used to supply current and press the cross wires to the longitudinal ones, which leads to strong and premature wear of the opposite welding rollers and, as a result, to the need for their frequent replacement. In addition, the famous car: complex in its design. The purpose of the invention is to provide. The possibility of varying the pitch of the transverse wire in a wide range and simplifying the design. This goal is achieved by the fact that in a machine for welding grids by the method of resistance with continuous feeding of longitudinal wires containing upper welding rollers and grooved discs for feeding the transverse wire, lower welding rollers, spring-loaded relative to the upper ones, the mechanism for feeding the longitudinal wire mounted on the drive shaft, and a mechanism for changing the transverse wire feed pitch, the upper welding rollers are mounted on a common drive shaft with the possibility of freedoms rotation, the disks are made with a radius larger than the radius of the upper welding rollers, and the bases of the disk slots are made at a radius smaller than the radius of the upper welding rollers, the machine is equipped with several guides radially mounted against a part of the disk grooves for simultaneous insertion of the transverse wire into these grooves the angular distance between them, corresponding to the angular distance between adjacent slots of the disks, and the mechanism for simultaneous radial movement of the transverse wire inside the grooves of the disco , The common drive shaft of the upper welding rollers and drive coupled to the drive shaft Me-. A longitudinal wire feed and both shafts are equipped with pulse sensors and an associated control mechanism. . FIG. 1 schematically shows a machine; FIG. 2 shows a section A-A in FIG. one; on. 3 — slotted disc for transverse wire with appropriate mechanisms; in fig. 4 kinematic diagram of machini drives. A machine for welding lattices from longitudinal 1 and transverse 2 wires consists of a mechanism for feeding longitudinal wires, which contains a chain 3, consisting of separate links, tensioned on a wire, two 4 and a guide 5 rollers, the distance between which can be changed to provide the necessary tension of the chain 3. The lower welding rollers 6 are located below the plane of manufacture. Each roller b at one end is equipped with a two-arm lever 7, the other end of which is so loaded with a helical spring 8 that the roller b is pressed to current longitudinal wire grid 1. The end of the post 9, in which the double-arm lever 7 is positioned with the possibility of rotation, supports the coil spring 8. In the casing of the machine there are also fixedly installed welding transformers 10, Neighboring welding rollers 6 are insulated from one another and by means of contact rings or similar devices ( ) connected to both ends of the secondary winding of the transformer 10. A shaft 11 extending across the width of the machine is located above the lattice manufacturing plane. The feed discs 12 that are round-shaped are rigidly connected to the shaft 11, about ok The grooves 13 are provided at equal angular distances. These grooves serve to receive the transverse wires and to feed them into the welding zone between the welding rollers 6 and the corresponding upper rollers 14, the upper welding rollers 14 located between two adjacent feed disks 12 in contrast to the discs 12, rotate freely on the shaft 11. In order to achieve full-predetermined welding pressure, the discs 12 intended for feeding the transverse wire must have a radius tj greater than the radius G2 of the rollers 14. In addition go, the bases of the grooves 13 in the disks 12 feeding the transverse wire should lie on a circle with a radius r that is less than the radius r, of the rollers 14. On the other hand, to avoid a deaf short circuit between the rollers and the rollers 14, the minimum distance between these The rollers should be adjustable by means of relocatable stops 15 which act on the rollers b, for example, by means of a swinging lever 7. The shaft 11 is surrounded by a shell 16 of highly conductive material which simultaneously serves as a common bridge for all rollers. 14 Thus, during welding, the current flows from the lower welding roller 6 to the corresponding upper roller 14, from which current flows into the conductive sheath 16 of shaft 11, then the current flows along this shell to the adjacent upper roller 14, then the current flows to the corresponding lower welding roller b, which is connected to the same welding transformer 10, which is connected to the named lower roller b. Each time when moving from one roller to the opposite or vice versa, the current passes through two crossed wires and welds them at the point of contact. During this welding process, both of the interacting freely rotating rollers B and 14 are carried away by the product being welded and rotated at a small angle. In order for a short time to be able to insert the transverse wire into the grooves 13 of the feed disk, there are provided at a short distance from the feed disk placed at the same angles as the corresponding grooves, separate guides 17 for the transverse wire. In order to feed these guides from known stationary refueling mechanisms, a special mechanism is provided for simultaneously moving the transverse wires radially from the periphery to the center into the slots of the feed disk 13. Near each guide 17 there is a shaft 18, which is located at some distance A number of feed arms 19, which are rigidly connected to this shaft. The control lever 20, which is tightly bound to ale 18, has a contact role at its end; 21 for the cam disc 22, which in turn is rigidly connected to the shaft 11 and therefore rotates with it. The number of grooves 13 located around the circumference of the feed disk 12 must be a multiple of an integer number of times the number of guides 17. In addition, the number of control cams 23 located around the circumference of the cam disk 22 must be equal to this multiple. The stops of the grooves 13, which lie ahead in the direction of rotation of the feeding disc 12, are bevelled approximately by one step in order to ensure reliable reception of the supplied transverse wire 2. Finally, to ensure that i in the groove 13 is held in it by the transverse wire 2 introduced into it groove, each groove 13 on at least two feed discs 12
    Sleep) liner spring support 24 For popper; -; h of the 1st wire.
    After the pin roller 21 passes the 1.0 surface of the cam 23 of the cam disc 22, the shafts 18 begin to grow. As a result, the feeding arms 19 are turned in the direction corresponding to the output of the transverse npOBOJJOKH 2 from the guides 17. Due to the pressure of the feeding lever 19, the transverse wires open to the transverse wire, which hold the transverse wire enclosed in them, and the latter is pressed out with the guide wire 17, Through the beveled edges of the feed disk 12, the transverse wire enters the row of grooves 13 passing by, whereby spring holders 24, which partially cover this row of grooves, are shifted to the side.
    Since, due to the cam mechanism, all guides are emptied at the same time (two guides are shown), a suitable number of grooves with a transverse wire embedded in them are provided around the circumference of the feed disk 12. Before a new transfer of the transverse wires from the guides 17 into the feed-disk 12 occurs, the welding of the same number of transverse wires that had previously been introduced into the welding zone was previously carried out. Only after this, before each guide 17 will there be an empty slot 13 lying in front of it, the time required for welding an appropriate number of transverse wires is used to insert new transverse wires into the guide lines 17. Therefore, the filling process can occur with a corresponding small by speed.
    The angular velocity of the drive disc 12, which feeds the transverse wire, can be set variable, with the transverse wire transfer from the guides 17 to the grooves 13 at the minimum angular velocity. When the transverse wire is fed to the welding zone, the rotational movement of the feed disc should be on-time (as long as the welding process is not completed) be synchronized with the longitudinal wire feed. This is necessary so that the rate of joint movement of the pedestrian wires in the weld zone is equal to the feed speed of the longitudinal wires. This synchronization is performed only for a short period of time to allow the welding of both crossed wires.
    Between successive welding processes, the disks serving to feed the transverse wire can rotate faster or slower than this corresponds to the said synchronous movement speed.
    The faster or slower the feed disk 12 rotates, the shorter or longer the successive transverse wires arrive in the welding zone, as a result of which the smaller or larger the mutual distance between adjacent transverse wires, since the feed rate of the longitudinal the wire stays the same all the time,
    The grid welding machine also contains devices for automatically changing the pitch of laying the transverse wires. Two independent motors 26 and 27 are driven from each other. Through bevel gears 28 and 29, shafts 11 and 30. A drive wheel 4 is mounted on the shaft by means of a key, each of both shafts 11 and 30 is provided with a pulse sensor. Each pulse sent by the sensors 31 and 32 of the pulses corresponds to a certain angular difference between two successive shaft positions. The pulses go to the control mechanism 33, which, by counting the number of pulses, starting from a certain initial moment of time — corresponding, for example, to the last time the welding current was turned on, ending the present moment of time — can determine the changes that have occurred in the angles of both shafts 11 and 30, Since each change in the angle of the shaft 30 corresponds to a particular section of the path traveled by the longitudinal wire; in this way, the path traveled by the longitudinal wire can be determined.
    By means of the swivel head 34, the control mechanism 33 is set to the desired distance between the transverse wires. By comparing the frequencies of the pulses coming from the sensors 31 and 32 pulses, with a constant frequency of the reference oscillatory circuit, the control mechanism 33 determines the angular speeds of the shafts 11 to 30, Exodus From the desired desired transverse wire pitch, the control mechanism 33 determines the speed with which the feed discs 12 must rotate between two successive welding processes in order to obtain s desired distance between, adjacent transverse wires from at stacking them on the longitudinal wire. This speed is called transport as opposed to synchronous, by which we mean the speed of rotation of the feed discs 12, at which the circumferential speed of the transverse wire 2 located in the grooves 13 is exactly equal to the feed speed of the longitudinal wire 1. Thus, the electric motor 2 rotates with constant In this case, the supply of the longitudinal wires 1 also occurs at a constant speed. We assume that the transverse wire 2 has reached the welding zone just between the rollers 6 and 14 and the welding current circuit should be turned on. In this case, the electric motor 26 operates at a synchronous speed. Thus, the circumferential speed of the transverse wire 2 around the circumference of the feed disk 12 corresponds exactly to the feed speed of the longitudinal wire 1. As a result, welding can be performed flawlessly, since the relative speed between the longitudinal and transverse wires is zero. After the feed disc 1 and together with it, shaft 11 passes through the op: solidly defined angle, which corresponds to a certain number of pulses coming from sensors 31 pulses, grooves 13 in which there was just a welded cross section portage "disengaged. At this moment, the control mechanism 33 switches the motor 26 to the transport speed and the latter maintains this speed until the end of the rotation of the feed disc 12 to the desired angle required for feeding the next transverse wire to the welding zone. The time interval, which depends on the transport speed, corresponds to the distance between the transverse wires in the fabricated grid and is set by turning the head 34 of the control mechanism 33. As soon as the next transverse wire is in the immediate vicinity of the welding zone, the control mechanism 33 commands the transition from the transport speed to the synchronous one, as a result of which the next cross bar can be welded with a longitudinal bar. Through the control mechanism 33, it is possible to additionally act on the electric motor 26 p of the function of other parameters, whereby it is possible to force the feed disk 12 during the course of each revolution to change the movement according to any necessary law. . A mechanical or electrical connection between the drive shaft 11 12 f serves to feed the transverse wire and the drive shaft 30, which is connected to the chain 3 consisting of separate links, which serves to feed the longitudinal wires, the synchronous movement of the longitudinal wires and welded to them, the transverse wires during the passage between the welding rollers, in this case it is possible to change by any law the instantaneous or average angular velocity of the feed discs in those intervals, when no welding is performed.
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    Fug.
    权利要求:
    Claims (1)
    [1]
    A MACHINE for welding LATTICES by the resistance method with continuous feeding of longitudinal wire, comprising upper welding rollers and disks with grooves for feeding the transverse wire mounted on a common drive shaft, lower welding rollers spring-loaded relative to the upper ones, a longitudinal wire feeding mechanism mounted on the drive shaft, and a mechanism for changing the pitch of the transverse wire, characterized in that, in order to ensure the possibility of changing the pitch between the transverse wires in a wide range and control design, the upper welding rollers are mounted on a common drive shaft with the possibility of free rotation, the disks are made with a radius larger than the radius of the upper welding rollers, and the base of the grooves of the disks are made at a radius less than the radius of the upper welding rollers, the machine is equipped with several radially mounted against the part the grooves of the disks with guides for simultaneous insertion of the transverse wire into these grooves with an angular distance between them corresponding to the angular distance between adjacent grooves of the disks, mechanism for the simultaneous radial movement of the transverse wire into the disc grooves, the common drive shaft of the upper welding rollers and drive connected to a drive shaft of the mechanism for supplying longitudinal wire, and both shafts are provided with pulse transmitters and associated control mechanism.
    10473 separate row of cross-member by electric holder on the drum, rotational unsuitable
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    同族专利:
    公开号 | 公开日
    JPS53130249A|1978-11-14|
    DE2811277A1|1978-11-02|
    JPS6146236B2|1986-10-13|
    YU53378A|1982-06-30|
    NL7802729A|1978-10-20|
    FR2387709B1|1983-03-18|
    CA1092201A|1980-12-23|
    NL184052B|1988-11-01|
    GB1575268A|1980-09-17|
    CH627100A5|1981-12-31|
    ATA269977A|1979-10-15|
    DE2811277B2|1979-09-06|
    LU79440A1|1978-07-13|
    NL184052C|1989-04-03|
    SE442096B|1985-12-02|
    FR2387709A1|1978-11-17|
    SE7804210L|1978-10-19|
    IT1096113B|1985-08-17|
    ES468853A1|1978-11-16|
    AT357005B|1980-06-10|
    BE864886A|1978-07-03|
    DE2811277C3|1980-07-17|
    IT7822226D0|1978-04-12|
    US4190758A|1980-02-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB190817278A|1908-08-17|1909-06-03|Stanley Greenop|Improvements in Machinery for Cutting and Grooving Wood and other Materials.|
    US1175516A|1913-02-27|1916-03-14|Theresa J French|Rotary electric welding-machine.|
    US1994701A|1932-10-06|1935-03-19|American Chain & Cable Co|Welding apparatus|
    US2410766A|1943-06-18|1946-11-05|Jr Theodore Harry Wickwire|Apparatus for fabricating welded wire fabric|
    AT264271B|1966-01-31|1968-08-26|Evg Entwicklung Verwert Ges|Device for changing the cross wire spacing in the manufacture of welded grids|
    AT267292B|1966-03-22|1968-12-27|Evg Entwicklung Verwert Ges|Equipment for grid feed and cross wire transport in grid welding machines|
    AT293840B|1968-07-19|1971-10-25|Evg Entwicklung Verwert Ges|Plant for the production of welded reinforcement grids for reinforced concrete|AT365491B|1979-06-12|1982-01-25|Evg Entwicklung Verwert Ges|ELECTRODE ARRANGEMENT ON A GRID WELDING MACHINE|
    EP0073336B1|1981-08-13|1985-05-08|Emil Jäger KG|Machine for the production of welded wire gratings|
    DE3131999C1|1981-08-13|1983-03-31|Emil Jäger KG, 4400 Münster|Machine for the production of welded wire network|
    AT379973B|1984-01-13|1986-03-25|Evg Entwicklung Verwert Ges|GRID WELDING MACHINE WORKING ON THE ELECTRIC RESISTANCE METHOD|
    US5026220A|1988-08-23|1991-06-25|Yudovin Lev G|Device for supplying lubricating-and-cooling agent to cutting tools|
    US20070095006A1|2005-11-01|2007-05-03|Konersmann Ronald D|Lightweight portable concrete enclosure and associated method of construction|
    CN102950400A|2012-10-08|2013-03-06|梁添贵|Wire feeding mechanism of welding machine|
    AT519106B1|2016-12-14|2018-04-15|Evg Entwicklungs U Verwertungs Ges M B H|Grid welding machine and method for producing wire mesh|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT269977A|AT357005B|1977-04-18|1977-04-18|GRID WELDING MACHINE WORKING ON THE ELECTRIC RESISTANCE METHOD|
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