CN2468708Y

CN2468708Y - Press for forming U shaped articles

Info

Publication number: CN2468708Y
Application number: CN 01211741
Authority: CN
Inventors: 王及元
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-26
Filing date: 2001-02-26
Publication date: 2002-01-02
Anticipated expiration: 2011-02-26

Abstract

A U-shaped molding press machine is a main part in the production line of UOE heavy caliber straight weld pipe; the molding press machine comprises a plurality of portal frames, a plurality of hydraulic cylinders, a die vertical plate, a circular assembling molding die, a lead board and centering mechanism, a baffle mechanism, a side press mold cylinder, a die sinking mechanism, a synchronizing mechanism, two beams and a drive lead board mechanism. Every portal frame is provided with a hydraulic cylinder; a side press mold cylinder is arranged in the inner side of every portal frame; the two beams are longitudinally positioned in the pluralities of portal frames; and a circular assembling molding die is fixed on every beam with a die sinking mechanism at the two ends. The utility model has the advantages of simple structure and great precision and etc.

Description

The forming U shaped articles forcing press

The utility model relates to a kind of processing equipment of metal tube, particularly relates to a kind ofly in the production procedure of UOE ERW, the steel plate total length once can be pressed into the forming press of U type.

U type forcing press is the chief component of UOE UOE production line, is to produce the key equipment that is used for dedicated pipe such as transfer oil, natural gas, coal gas.In the production process of heavy caliber steel pipes with straight, steel plate is pressed into 0 type socket by O type forcing press after once being pressed into the U type by U type forcing press again, and the steel pipe that will crack again at last welds.At present forming U shaped articles forcing presses of adopting of some countries exist automaticity not high, and gantry frame structure is unreasonable, and the steel plate pressurized is inhomogeneous, and precision is not high, shortcomings such as inefficiency, and domesticly still do not have a forming U shaped articles press equipment.

The purpose of this utility model provides a kind ofly in the production procedure of UOE UOE, by hydraulic means steel plate is pressed into accurately the forming U shaped articles forcing press of U type behind the pre-crimp of steel plate.

The forming U shaped articles forcing press comprises a plurality of portal frames, and each portal frame all is to be made of the stack of polylith steel plate.Two crossbeams vertically are set in a plurality of portal frames, fixedly connected with two overarm braces respectively in the two ends of each crossbeam, and the lower end of each overarm brace connects with bearing axle on the portal frame base respectively.Two ends at each crossbeam are equiped with die opening mechanism respectively, and die opening mechanism is made of the hydraulic cylinder drivening rod, the upper end of connecting rod and a corresponding crossbeam axle connection.Hydraulic cylinder is gone up in one of the top installing of each portal frame, fixes a mould seat on the piston of last hydraulic cylinder, and the mould seat is fixedlyed connected with the upper end of the mould riser that vertically is provided with, and fixedlys connected with mould in the lower end of mould riser.Mould provides power by last hydraulic cylinder, on the corresponding position of inwall, the both sides of each portal frame, install a side hydraulic cylinder respectively, the piston rod front end of each side hydraulic cylinder can be replaced on the rear end face of a round combined shaping mold, and round combined shaping mold is fixed on the upper surface of corresponding crossbeam with it.In two crossbeams, be equiped with guide plate and centering machine, guide plate and centering machine are made up of the foundation that has semicircle opening and a plurality of running roller, the foundation that has semicircle opening is fixed on the gantry base, and running roller is supported by the hydraulic means that is fixed on the gantry base.When mold pressed down, supporting steel plate had guaranteed that simultaneously circle and the integral body at the bottom of the steel plate U type is concentric, lifts on the mould after the moulding, and running roller holds up pipe under the hydraulic means effect, and machine operation drive running roller rotates sends U type machine with pipe.

When entering forcing press for steel plate, be limited to desired location all the time and move, be equiped with baffle mechanism, baffle mechanism is made of the baffle plate that is installed in the frame both sides and row's running roller.

In order to guarantee the stressed equalization in U type both sides of steel plate, in two crossbeams, be equiped with lazy-tongs, lazy-tongs reach the synchronous of crossbeam work by the fluted disc engagement, thus the side hydraulic cylinder works that has guaranteed both sides is synchronous, has guaranteed the formed precision of steel plate U type both sides.

The utility model is owing to adopted closed portal frame, portal frame is formed by stacking by the polylith steel plate, holding capacity is strong, sturdy and durable, again owing to be equiped with hydraulic cylinder on each portal frame, set firmly a side hydraulic cylinder on the inwall of both sides respectively, thereby can guarantee the dynamics that presses down of mould and the stress equalization of mould.The utility model also is provided with baffle mechanism, guide plate and centering machine, die opening mechanism and lazy-tongs in addition; thereby have fabulous balance and synchronism, and then guaranteed the formed precision of steel plate, thus improved the qualification rate of product greatly; improve operating efficiency, reduced production cost.

Fig. 1 is the structure intention of a kind of embodiment of the utility model.The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment:

The forming U shaped articles forcing press comprises that 1,7 of 7 portal frames go up 2,14 side hydraulic cylinders of hydraulic cylinder 3, two crossbeams 4, mould riser 5, mould 6, baffle mechanism, die opening mechanism, lazy-tongs, guide plate and centering machines and guide agency initiatively.Wherein 7 portal frames 1 are oppositely arranged, and be arranged in parallel at intervals, and each portal frame 1 is made of the stack of polylith steel plate.Go up the upper end that hydraulic cylinder was located at 7 portal frames 1 in 2 minutes for 7, the piston of hydraulic cylinder 2 is fixedlyed connected with a mould seat 7 on each.Fixedly connected with 7 mould seats 7 in the upper end of mould riser 5.Fixedly connected with mould 6 in the lower end of mould riser 5.Two crossbeams 4 are 12 meters long, are located in the frame of 7 portal frames 1, and the two ends of two crossbeams 4 are separately fixed on two overarm braces 8, the lower end of each overarm brace 8 respectively be installed in portal frame 1 base 19 on 9 of bearings be connected.14 side hydraulic cylinders 3 are separately fixed at 7 portal frame 1 both sides, 14 side hydraulic cylinders 3 can be afterburning simultaneously on corresponding round combined shaping mold 10 with it.Baffle mechanism is made of the baffle plate 11 that is installed in the portal frame both sides and row's running roller 12, and after steel plate 13 entered the forming U shaped articles forcing press, baffle plate 11 and running roller 12 clamped centering with steel plate 13 under the hydraulic cylinder effect; Guide plate and centering machine are made of bed die 14 and a plurality of running roller 15, and bed die 14 is the foundation with semicircle opening, and the bed die 14 of semicircle opening is fixed on the base 19 of portal frame 1.Bed die 14 plays the effect of supporting steel plate 13 when mould 6 presses down, and guarantee that the circle of steel plate 13 and integral body are concentric, after mould 6 presses to the bed die 14 of circular open, make steel plate 13 be pressed into the U type for last circular combined shaping mold 10 reinforcings of two crossbeams 4 by 14 side hydraulic cylinders 3, after the moulding, lift on the mould 6, a plurality of running rollers 15 hold up pipe under the effect of hydraulic means, machine operation drives running roller and rotates, and pipe is sent U type machine; Die opening mechanism is made up of 4 pull bars 16 that are connected two crossbeam 4 two ends and 4 hydraulic cylinders 17 driving 4 pull bars 16, after the side pressure moulding, with two crossbeams 4 and on combined shaping mold 10 draw back; Lazy-tongs are made of two set fluted discs 18, and two set fluted discs were located between the both sides of two crossbeams 4 in 18 minutes, and synchronous effect is in crossbeam 4, can guarantee that the work of side hydraulic cylinder of both sides is synchronous, make the stressed equalization in U type both sides of steel plate, guarantee the formed precision of steel plate 13; Initiatively guide agency is made of a plurality of running rollers of driven by motor, and steel plate is transported on the U type forcing press by a plurality of running rollers.

Claims

1, forming U shaped articles forcing press comprises a plurality of portal frames (1), a plurality of hydraulic cylinder (2), a plurality of side hydraulic cylinder (3), two crossbeams (4), mould riser (5), mould (6), baffle mechanism, die opening mechanism, lazy-tongs, guide plate and centering machine and active guide agency gone up; It is characterized in that:

A, a plurality of portal frames (1) are oppositely arranged, and yi word pattern is arranged, a plurality of upward hydraulic cylinders (2) are separately positioned on the upper end of a plurality of portal frames (1), set firmly a mould seat (7) on the piston of hydraulic cylinder on each (2), fixedly connected with a plurality of mould seats (7) in the upper end of mould riser (5), fixedly connected with mould (6) in the lower end of mould riser (5), two crossbeams (4) are located in the frame of a plurality of portal frames (1), each crossbeam (4) is fixedlyed connected with the upper end of two above overarm braces (8) respectively, the lower end of each overarm brace (8) respectively be installed in portal frame (1) base (20) on bearing (9) axle be connected, a plurality of side hydraulic cylinders (3) are separately positioned on the top of two crossbeams (4), and be separately fixed on the madial wall of a plurality of portal frames (1), be fixed with corresponding round combined shaping mold (10) on the upper surface of two crossbeams (4) respectively, a plurality of side hydraulic cylinders (3) of a plurality of portal frames (1) both sides can be afterburning simultaneously on two circular combined shaping molds (10);

B, baffle mechanism are made up of two side plates (11) and row's running roller (12), and after steel plate (13) entered U type machine, running roller (12) clamped centering with steel plate (13) under the hydraulic cylinder effect;

C, guide plate and centering machine are made of bed die (14) and a plurality of running roller (15), a plurality of running rollers (15) and bed die (14) are separately fixed on the base (19) of portal frame (1), and a plurality of running rollers (15) can be sent U type machine at the pipe that lifts and will suppress the U type under the effect of hydraulic cylinder under the motor effect;

D, die opening mechanism are made up of at least 4 hydraulic cylinders (17) of 4 pull bars (16) that are connected two crossbeams (4) two ends and drive pull bar (16) at least, after the side pressure moulding, at least 4 pull bars (16) under the effect of at least 4 hydraulic cylinders (17) with two crossbeams (4) and on combined shaping mold (10) draw back;

E, lazy-tongs are made of two set fluted discs (18) engagement, and two set fluted discs (18) branch is located between the both sides of two crossbeams (4).