RU2108187C1 - Automatically controlled line for cutting ingots such as bodies of revolution by blanks and transporting them - Google Patents

Abstract

FIELD: designing automatically controlled lines for cutting complex ingots or continuously cast cylindrical rods by blanks for their subsequent transportation to wheel- or ring-rolling mill. SUBSTANCE: line includes arranged successively sawing apparatuses mounted in pairs and mutually connected by means of transporting units. Said sawing apparatuses are provided with disc saws mounted in supports. Line also includes common accumulating rack, charging roller tables, clamping devices, measuring stop with gripper, weighing machine, transferring cars, lifting units and receiving tables. Each receiving table has intermediate accumulator for sawed blanks consisting of stationary stop and lifting table provided with drive mechanism and chute with central port. Pusher is mounted on car and arranged in said port. Said car is arranged under said chute with possibility of reverse horizontal motion. Upper surface of said lifting table is inclined towards said accumulator. EFFECT: enhanced arrangement of units, their improved design. 3 cl, 4 dwg

Description

 The invention relates to procurement in the field of metal forming and can be used in the design of automated lines for cutting complete ingots or continuously cast round bars into blanks such as bodies of revolution for their subsequent transportation, for example, to wheel or ring rolling.

 It is known, for example, the equipment of a line for separating complete ingots into billets of bodies of revolution and transferring them to a rolling mill (see G. A. Bibik et al. Production of railway wheels. -M .: Metallurgy, 1982, p. 43 ... 45 , Fig. 14 and 15), where the method for separating ingots into billets involves trimming them on ingot cutting machines (cutting width of about 20 mm), leaving necks with a diameter of 100 ... 150 mm, followed by breaking on hydraulic presses (ingot breakers) of mainly horizontal type effort 400.. . 500 tf The modern line for breaking ingots and sorting billets is presented there on page 44, fig. 14. Ingots cut on slit-cutting machines are stacked with a bridge crane in gutters installed on the platforms of two electric transport trolleys. Then the trolleys, moving, sequentially combine the axis of each trough with the axis of the breaking line and the hydraulic pusher. After the carts stop, the pusher is turned on and the incised ingot from the trough collides on the receiving table of the ingot breaker, which, by inserting a wedge into the ingot slot, breaks it. After the ingot collides with the gutter, the pusher returns to its original position, and the cart delivers the next gutter with the ingot to the breaking line.

 The pusher, pushing the next ingot from the cart, simultaneously feeds the previous one to the desktop of the ingot breaker. The ingot broken into billets is fed to the output rack, from which the head and bottom parts of the ingot are dumped into a waste box with a special pusher, and the billets go to a transport roller equipped with a step pusher and move to the scales. Weighted workpieces arrive at tilters, from where they are transferred by other pushers to perpendicularly located components of the trough. From the gutters, the workpieces are removed by an overhead crane and delivered to the workpiece warehouse, from which then they are also fed by the crane into the gutters of other transport trolleys. The latter, loaded with blanks, are moved to the furnace span of the workshop, where, sequentially combining the axes of each groove with the axis of the furnace roller table, the blanks are pushed onto this roller table, which transports them to the heating furnaces. The specified equipment lines for cutting complete ingots into billets for the manufacture of railway wheels and other bodies of revolution have the following disadvantages.

 1. The process of notching ingots is inefficient and time-consuming, for the implementation of this technology requires a large fleet of machines and large production areas.

 2. In some cases, a neck fracture occurs non-uniformly, with an oblique fracture, a mushroom neck, and tears that increase the mass difference of the workpieces and impair the stability of the deformation process.

 3. Repair of the above defects leads to additional labor costs and reduce the quality of the workpieces.

 Currently, there is more advanced equipment and method for cutting and transporting cut blanks for the manufacture of products of bodies of revolution such as wheels and rings based on saw units of the company "Wagner" Germany (see fig. 0.034-511 and 0.0341-568) - prototype.

 There are three saw units on the workshop site. Each saw installation contains two paired own saws mounted on supports and equipped with electric saw blades, united by a common storage rack, which includes three trolleys that can be moved horizontally by conveyors with the possibility of lifting and lowering in the desired position.

 Each saw is equipped with a roller table loading, clamping device, measuring emphasis and grip, weights, transfer trolley, lifting device, receiving table and box trim collection.

 The operation of each saw installation is as follows.

 Complete ingots or continuously cast round ingots (rods) are transferred by trolley or rolling table from the combined warehouse of ingots located in the adjacent span of the workshop to their cutting sites.

 By means of pincers and an overhead crane, the rods are stacked on a storage rack, from which, with the help of trolleys, the rods are alternately stacked on the left or right loading roller table and transferred by the front end to the saw working area to the measuring stop, which also grabs them. The latter is automatically adjusted to the specified length of the cut workpiece, which can also be automatically adjusted depending on the change in the mass of the workpiece. Next, the clamping device clamps the workpiece in front of and behind the saw blade, after which the bar is cut by feeding a support with a rotating circular saw. The cut-off workpiece by the grips of the measuring stop is lowered and laid on the transfer trolley, after which the grips are unclenched and the measuring stop is lifted, and the trolley with the workpiece is first moved to the balance for weighing, and then to the predetermined stroke in the unloading position, where the workpiece is removed from the transfer by the lifting device carts and rolls down inclined slopes to a reception table.

 After the necessary number of blanks is accumulated at the receiving table, the bar cutting process is stopped, the set of blanks (“sausage”) is captured by a tick-borne grip and transferred to an adjacent furnace span to the zone of heating furnaces of the rolling mill, or to a place for returning to the combined warehouse of ingots for transfer in the ring rolling workshop. At the same time, to obtain high-quality workpieces, the front and rear ends of the rods are cut off and transferred by a transfer trolley to the trim drop box.

 This equipment of the line for cutting and transportation of cut billets for the manufacture of products of bodies of revolution such as wheels and rings has the following disadvantages.

 1. Reception tables do not have intermediate drives of cut billets, which restrains the performance of the saw units, as the saws are stopped during unloading of the reception table.

 2. Transfer of cut billets from the saw units to the places of their consumption to adjacent spans of the workshop (to heating furnaces of the rolling mill or to the warehouse for transfer to the ring-binder workshop) is a rather laborious and insecure operation related to human participation (rafters) and constant attachment to equipment shop bridge crane.

 3. Capture and stacking of cut billets with pincers and transferring them to overhead cranes eliminates the automation of transportation of cut billets from saw units to places of consumption.

 The objective of the invention is the creation of an automated line for cutting and transporting cut billets for the manufacture of products such as bodies of revolution, which allows to increase the productivity of sawing plants, improve the production culture and safety conditions, exclude the workshop bridge crane of their technological process for transporting cut billets, and automate the process transportation of cut billets from saw units to places of consumption.

 The essence of the invention lies in the fact that an automated line for cutting ingots, such as bodies of revolution, into billets and their transportation, containing vehicles connected in series and installed in series, paired saw units, on the calipers of which circular saws are mounted, a common storage rack, loading roller tables, clamping devices , measuring emphasis with a grip, scales, lifting devices and receiving tables, where each receiving table is equipped with an intermediate drive of cut billets made in e stationary stop, and a lifting table with a drive and a drive with a pusher made in the form of a chute with a central opening in which a pusher is mounted mounted on a trolley located under the chute with the possibility of horizontal reverse movement, while the upper surface of the lifting table is made inclined to the side drive with a pusher, and the line is equipped with transport trolleys mounted on a rail located along the front of the saw units from the reception tables with the possibility eremescheniya any bogie to any receiving table, with each carriage mounted on the trough, the axes of which are arranged perpendicular to the movement of the trolley with the possibility of combining any bogie trough with a chute drive tappet of any of the table. In addition, the line is equipped with end trolleys and a return flow trolley with the possibility of moving the workpieces into the adjacent span of the workshop, installed on rail tracks perpendicular to the rail track of transport trolleys, with trenches mounted on the platform of each trolley with the possibility of combining any transport trolley with any trough and along the axes of the rail tracks of these trolleys stationary pushers are installed with the possibility of pushing the workpieces from any transport trolley onto the return trolley of flow or to any truck terminal. The rail track of the transport trolleys is made elongated relative to the rail tracks of the end bogies by an amount not less than the length of two transport bogies with the possibility of combining the troughs of any transport bogie with the trough of any end bogie.

 In FIG. 1 shows an automated line for cutting ingots, such as bodies of revolution, into workpieces and their transportation, plan view; in FIG. 2 is a section AA of FIG. one; in FIG. 3 is a section BB of FIG. one; in FIG. 4 is a section BB of FIG. 2.

 The automated line contains saw installations 1, each of which includes circular saws 2 mounted on a support 3, a common storage rack 4, three friction roller tables 5, clamping devices 6, a measuring stop with a gripper 7, scales 8, transfer trolleys 9, lifting devices 10, receiving tables 11, as well as boxes 12 for collecting trim.

 Each receiving table is equipped with an intermediate drive 13 of cut billets, made in the form of a stationary stop 14 and a lifting table 15 with a drive 16, and a drive with a pusher 17, made in the form of a groove 18 with a central slot 19, in which a pusher 20 mounted on a trolley is mounted 21, located under the trough, with the possibility of horizontal reverse movement from the electromechanical drive 22 by means of a chain 23 connected to the trolley, while the upper surface 24 of the lifting table is made inclined in thoron drive with pusher.

 From the receiving tables of the flight span of the workshop, a longitudinal rail track 25 is provided on which transport trolleys 26 and 27 are mounted with the possibility of moving any trolley to any receiving table, with trenches 28 and 29 with axes 30 and 31 perpendicular to the movement of the trolleys installed on each trolley with the possibility of combining any trough of the trolley with the trough of the drive of any receiving table.

 Perpendicular to the rail track 25 of the transport trolleys 26 and 27, there are other rails located between and behind the saw units - 32, 33 and 34, on which a return flow trolley 35 is mounted, respectively, with the possibility of moving to the adjacent span of the workshop for further transfer of the workpieces to the ring banding workshop and end drive trolleys 36 and 37 with the possibility of moving to another span of the workshop to heating furnaces N 1 and 2 of the rolling mill, while on the platform of each drive trolley along the axes 38, 39 and 40 of their relay gutters, 41, 42 and 43, respectively, are installed with the same path, with the possibility of combining with any gutter any of the transport trolleys 26 and 27, and on the axes of the rail tracks of these trolleys, stationary pushers with reversible reciprocating movement through the rack connections from the electric drives 47 are provided with the possibility collisions of workpieces from any transport trolley 26 and 27 to the return flow trolley 35 or to any end carriage 36 and 37. The rail track 25 of the transport trolleys 26 and 27 is elongated relative to the rail tracks 33 and 34 end trolleys of size 48 equal to at least the length 49 of the two transport trolleys with the possibility of combining the troughs 28 and 29 of any transport trolley 26 and 27 with the trough 42 or 43 of any end trolley for pushing the cut workpieces. In this case, the cut blanks are placed in the drives of the receiving tables one after another in a set in the form of "sausages" 50, the length of which is determined by the length of the drives, which in turn determines the stroke size of all pushers.

 Automated line operates as follows.

 The rods (complete ingots or continuously cast round ingots) are stacked by means of a bridge crane on storage racks 4, from which, using their own trolleys, the rods are alternately stacked on the left or right loading roller tables 5 and transferred by the front end to the working area of circular saws 2 of each saw unit up to measuring stop 7, which captures the end of the workpiece. The measuring stop is automatically adjusted to the specified length of the cut workpiece, which can automatically be adjusted depending on the change in the mass of the workpieces. Next, the clamping device 6 clamps the workpiece in front of and behind the saw blade, after which the bar is cut by feeding the caliper 3 with a rotating circular saw 2.

 The cut-off workpiece by the grips of the measuring stop is lowered and laid on the transfer carriage 9, after which the grips are unclenched, and the measuring stop with the grips is lifted, the transfer carriage with the workpiece is moved first to the balance 8 for weighing, and then to the set stroke in the unloading position, where device 10, the workpiece is removed from the transfer carriage 9 along inclined slides to the receiving table 11 and then along the inclined surface 24 of the lifting table 15 to the stationary stop 14 of the intermediate drive 13. After orezki following workpiece transfer trolley 9 moves the preform adjacent to the previous position. When the desired number of workpieces is accumulated on the intermediate drive, the cutting process of the rods stops, the lifting table 15 of the intermediate drive rises to the upper position from the drive 16, and the set of workpieces 50 ("sausage"), freeing themselves from the stationary stop 14, rolls along the inclined surface 24 of the lifting table 15 through an intermediate part into the trough 18 of the drive 17 with a pusher 20 located in its extreme initial position. Depending on the program of operation of the line, the transport trolley 26 or 27 moves to the corresponding receiving table of the corresponding saw installation, while the axes 30 and 31 of the grooves 28 and 29 are alternately aligned with the axis of the groove 18 of the accumulator 17, after each combination the trolley 21 moves with the pusher 20, which, speaking through the slot 19, pushes the "sausage" 50 from the groove 18 of the drive 17 into the corresponding groove of the transport trolley 26 or 27.

 After filling the gutters 28 and 29, the transport trolley 26 or 27, depending on the program, moves to any of the three positions until the axes 30 and 31 of the gutters 28 and 29 are sequentially aligned with the axes 38 and 39 or 40 of the corresponding pushers 44, 45 and 46, which are from the electric drive 47 through a rack and pinion gear from a starting position make a horizontal stroke, alternately pushing from both troughs of the “sausage” 50 into the trough 41 of the trolley 35, either into the trough 42 of the trolley 36 or into the trough 43 of the trolley 37.

 After filling the grooves 41, 42 and 43 with the “sausages”, the trolleys 35, 36 and 37 move according to their purpose: either back to the warehouse for feeding into the ring binder shop, or to the heating furnaces N 1 and 2 of the rolling mill. In this case, the unloading of these trolleys is provided by an overhead crane. The trolley free from blanks returns to its original position to continue further work of the line according to a given program. In case of using the line of one transfer carriage 26 or 27 in the work program, the second carriage is driven to an extension 48 (left or right) of the rail track 25.

 To obtain high-quality workpieces, the front and rear ends of the rods are cut off and transferred by a transfer trolley to the trim box.

Claims (3)

 1. An automated line for cutting ingots such as bodies of revolution into billets and their transportation, containing vehicles connected in series and installed in series paired sawing units with circular saws on calipers, a common storage rack, loading roller tables, clamping devices, measuring emphasis with gripper, scales, and transfer trolleys, lifting devices and receiving tables, characterized in that each receiving table is equipped with an intermediate drive of cut blanks, made in the form of a stationary pack and a lifting table with a drive and a chute with a central opening, in which a pusher is mounted mounted on a trolley located under the chute with the possibility of horizontal reverse movement, while the upper surface of the lifting table is made inclined towards the drive with a pusher, and the line is equipped with transport trolleys, mounted on a rail located along the front of the saw units from the reception tables with the ability to move any cart to any reception table, with each There are gutters installed on the trolley, the axes of which are perpendicular to the trolley movement, with the possibility of combining any trolley trough with the drive trough with the pusher of any receiving table.  2. The automated line according to claim 1, characterized in that it is equipped with end trolleys and a return flow trolley with the possibility of moving workpieces into an adjacent span of the workshop installed on rail tracks perpendicular to the rail track of transport trolleys, while on the platform of each trolley are installed gutters with the possibility of combining with any gutter of any transport trolley, and stationary pushers are installed along the axes of the rail tracks of these trolleys with the possibility of pushing workpieces with any t transport cart to the return flow cart or to any end carriage.  3. The automated line according to claim 1 or 2, characterized in that the rail track of the transport bogies is elongated relative to the rail tracks of the end bogies by at least the length of the two transport bogies.

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