CN2159836Y

CN2159836Y - Drawing machine for seamless steel tube

Info

Publication number: CN2159836Y
Application number: CN 93218514
Authority: CN
Inventors: 黄岐云
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-16
Filing date: 1993-07-16
Publication date: 1994-03-30
Anticipated expiration: 2003-07-16

Abstract

The utility model relates to a drawing machine for a seamless steel tube. One-step drawing forming process is utilized. The utility model is composed of a cast control part, a quickly cutting part, a clamping part and a drawing part. The cast part is composed of a machine frame, an outer mold, a cast port, an inner mold, a pull pipe, an outer spray pipe and an inner water feeding pipe. The quickly cutting part is composed of a support frame, a rotating disc, a rotor, a radial feed rod, a fluted disc, a compressing ring, a motor and a saw blade. The seamless steel tube with various lengths can be continuously drawn and formed. The utility model has the advantages of simple processing, low cost, etc.

Description

Drawing machine for seamless steel tube

The utility model relates to a kind of seamless steel pipe production, and particularly a kind of seamless steel pipe draws, and being suitable for producing does not have the usefulness of meeting steel pipe.

Production for seamless steel pipe, also do not have good process at present in the world, existing manufacturing technique all exists big, the shortcomings such as efficient is low, cost height of investment, therefore, need seek new manufacturing technique method, to overcome the above-mentioned defective of present process.

The purpose of this utility model is exactly that a kind of seamless steel pipe drawing machine that adopts brand-new process will be provided.Its radical change present nothing meet steel tube producing method, adopt the brand-new production that forming process carries out seamless steel pipe that once draws; Steel pipe is entered between the inside and outside mould by the sprue gate, draws moulding by trombone slide; And by partial devices such as clamping, cutting, tractions, but the seamless steel pipe of continuous drawing shaping all lengths, with traditional production technology and equipment relatively, have that technology is simple, little, the low cost and other advantages of investment, the steel pipe's production producer that is fit to large, medium and small various scales uses.

The utility model is achieved in that the seamless steel pipe drawing machine draws part, clamping part, fly-cutting and traction element by cast and forms.

Cast draws the cast of finishing seamless steel pipe and draws shaping work.It is made up of parts such as frame, external mold, sprue gate, internal mold, trombone slide, outside sparge pipe and internal water flooding pipes.During work, at first inject recirculated water by the internal water flooding pipe, to carry out the inside cooling, inject inside and outside mould between by the sprue gate molten steel then and enter in the rectangle teeth groove of trombone slide the inner, treat molten steel in groove, cool off condense after, affect trombone slide by traction element, the continuous injection molten steel at the sprue gate simultaneously can draw out the steel pipe of shaping.In pulling process, also need to carry out the outside water spray, to accelerate the cooling of external mold by outside sparge pipe.

The cutting to the steel pipe of trombone slide and drawing moulding is partly finished in fly-cutting.It is by support, rotating disk, rotor, radially parts such as feed rod, spiral fluted disc, compacting ring, motor, Toothless saw blade are formed.During work, the steel pipe of trombone slide or shaping passes at the rotor center, and after clamped part clamps, make each radially the electric motor starting on the feed rod drive Toothless saw blade and rotate; Pull rotating spanner on the spiral fluted disc by operating personnel and make spiral relatively rotate body to rotate, thereby the helical rack that drives on the feed rod is radially realized radially feed.After feed radially reaches certain degree of depth, rotor is rotated, thereby being cut along the circumference of steel pipe, Toothless saw blade blocks steel pipe fast.

Clamping part is used for the steel pipe of clamping and forming to cut or to draw.It is made up of clamping body and some claws.The trombone slide that foregoing cast draws part only is used for carrying out the drawing of first steel pipe in the control work of one-time continuous, after first steel pipe pulled out, with the steel wire rope of traction element by unloading the outer end that is articulated to the clamping part claw on the trombone slide, after partly clipping trombone slide by fly-cutting, clamping body is enclosed within outside the shaping steel pipe, after the haulage cable tension, the inner of each claw just clamps steel pipe, draw by traction element, just can proceed the drawing of steel pipe, after every steel pipe is moved the length that needs to, can block, clamp control root steel pipe down more again.

Traction element is used for drawing trombone slide or clamping part, to carry out the drawing of steel pipe.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is the cutaway view that the utility model cast draws part.

Fig. 2 is the view that the utility model cast draws the portion of external sparge pipe.

Fig. 3 is the topology view that the utility model cast draws the part trombone slide.

Fig. 4 is that the master of the utility model fly-cutting part looks cutaway view.

Fig. 5 is the side view of the utility model fly-cutting part.

Fig. 6 is the front view of the novel clamping part of this reality.

Fig. 7 is the side view of the utility model clamping part.

Fig. 8 is the connection schematic diagram of the utility model fly-cutting part, clamping part and traction element.

With reference to Fig. 1, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8.The utility model draws part (1), fly-cutting part (2), clamping part (3) and traction element (4) by cast and forms.

With reference to Fig. 1, Fig. 2, Fig. 3.Cast draws part (1) and is made up of frame (7), external mold (9), sprue gate (8), internal mold (11), trombone slide (12), outside sparge pipe (10) internal water flooding pipe parts such as (13).External mold (9) is contained on the frame (7), and between the frame for being fixedly connected; Sprue gate (8) is arranged on external mold; Outside sparge pipe (10) is equipped with in the outside of external mold; The internal diameter of external mold a section of contiguous sprue gate have certain tapering α internal mold (11) to be contained in that frame (7) goes up and the inside of external mold (9) and frame and external mold between be activity and connect; Internal mold (11) can be by extracting out in the external mold (9); Internal water flooding pipe (13) is housed in internal mold; Circulating water outlet (6) is arranged in the outer end of internal mold.In order to guarantee the quality that steel pipe draws and prevent the molten steel bonding that internal mold external diameter and external mold internal diameter all need carry out fine finishining.Trombone slide (12) is contained between internal mold and the external mold, and is movable the connection between the inside and outside mould; Trombone slide can be by extracting out to the direction opposite with internal mold in the outer tube; In the inner of trombone slide at several rectangle teeth groove (15); Some draw rings (14) are arranged to articulate steel wire rope in the outer end of trombone slide.

Cast draws part and finishes the cast of seamless steel pipe and draw shaping work, during work, at first by internal water flooding pipe (13) at the inner recirculated water that injects of internal mold (11) so that internal mold is cooled off during cast, prevent the bonding of molten steel and die body.Inject inside and outside mould between by sprue gate (8) molten steel then and enter in each inner rectangle teeth groove (15) of trombone slide (12), treat molten steel in groove, cool off condense after, can affect trombone slide (12) by traction element (4), simultaneously inject molten steel continuously, to carry out the drawing of steel pipe at the sprue gate.One section at the close sprue gate (8) of external mold (9) internal diameter has certain tapering; Can when drawing, produce certain resistance, help improving the quality of product.Regulate the speed that traction draws, can adapt to different-diameter, the drawing of the steel pipe that different quality requires needs.

With reference to Fig. 4, Fig. 5.Fly-cutting part (2) is by support (16), rotating disk (17), rotor (18), radially feed rod (19), spiral fluted disc (21), compacting ring (22), motor (24), Toothless saw blade parts such as (23) are formed.Rotating disk (17) is contained on the support (16) together, and can rotates on support after being fixedly connected with rotor (18).Even distribution of rotor (18) upper edge circumference 4 radially feed rods (19) are housed, each radially all has helical rack (25) on the feed rod; Be equipped with on the rotor spiral fluted disc (21) with each radially the helical rack (25) on the feed rod match; Some rotating spanners (20) are housed on the spiral fluted disc; Connect for movable between spiral fluted disc (21) and the rotor, can relatively rotate; On rotor, compacting ring (22) is housed, in order to limit the axial location of spiral fluted disc (21) on rotor by thread connection; Radially all be contained in motor (24) in the inner of feed rod at each, rotate to drive each Toothless saw blade (23).

Fly-cutting part (2) is finished the fly-cutting to the steel pipe of trombone slide (12) and drawing moulding.During work, steel pipe that draw to be shaped by cast control section (1) or trombone slide (12) rotor (18) center pass that clamped part (3) clamps and traction element (4) tension after, just can start each motor (24) and drive each Toothless saw blade (23) and rotate.Pull rotating spanner (20) on the spiral fluted disc (21) by operating personnel then and make the spiral fluted disc relatively rotate body (18) to rotate, thereby make radially feed rod (19) realize radially feed by the helical rack (25) on the feed rod (19) radially.When feed radially after certain degree of depth, rotor (18) is rotated, thereby just Toothless saw blade (23) cuts the fast shut-off steel pipe along the circumference of steel pipe.

With reference to Fig. 6, Fig. 7, Fig. 8.Clamping part (3) is made up of along the equally distributed claw of clamping body circumference (27) clamping body (26) and 4.Being used for clamping the steel pipe that draws shaping draws to cut or to proceed.The foregoing trombone slide (12) that draws part (1) only is used for carrying out the drawing of first steel pipe in the control work of one-time continuous.After first steel pipe pulled out, with the steel wire rope (5) of traction element (4) by the outer end (28) of unloading the claw (27) that is articulated on the clamping part (3) on the trombone slide (12), after clipping trombone slide by fly-cutting part (2), clamping body (26) is enclosed within outside the shaping steel pipe, after haulage cable (5) tension, the inner of each claw (28) just clamps steel pipe, just can proceed steel pipe by traction element (4) traction then and draw.After every steel pipe is moved the length that needs to, can block, clamp again again and draw next root steel pipe.

With reference to Fig. 8.Traction element (4) is by haulage cable (5) traction trombone slide (12) or drawing or the cutting of clamping part (3) to carry out steel pipe.

Claims

1, a kind of seamless steel pipe drawing machine is to draw part (1) by cast, and fly-cutting part (2), clamping part (3) and traction element (4) are formed, and it is characterized in that:

A. cast drawing part (1) is made up of frame (7), external mold (9), sprue gate (8), internal mold (11), trombone slide (12), outside sparge pipe (10), internal water flooding pipe parts such as (13), external mold (9) is contained on the frame (7), and between the frame for being fixedly connected; Sprue gate (8) is arranged on the external mold; Outside sparge pipe (10) is equipped with in the outside of external mold; Near the internal diameter of external mold section sprue gate has certain tapering α, and internal mold (11) is contained in that frame (7) goes up and the inside of external mold (9), and is movable the connection between frame and the external mold; Internal mold can be by extracting out in the external mold; Internal water flooding pipe (13) is housed in the internal mold; Circulating water outlet (6) is arranged in the outer end of internal mold, and trombone slide (12) is contained between internal mold (11) and the external mold (9), is movable the connection with inside and outside mould; Trombone slide (12) can be extracted out by the introversive direction opposite with internal mold (11) of external mold (9); Several rectangle teeth groove (15) are arranged in the inner of trombone slide; The other end at trombone slide has some draw rings (14),

B. fly-cutting part (2) is by support (16), rotating disk (17), rotor (18), radially feed rod (19), spiral fluted disc (21), compacting ring (22), motor (24), Toothless saw blade parts such as (23) are formed, after rotating disk (17) is fixedly connected with rotor (18), be contained on the support (16) together, and can on support, rotate.Even distribution of rotor (18) upper edge circumference 4 radially feed rods (19) are housed, each radially all has helical rack (25) on the feed rod; Be equipped with on the rotor spiral fluted disc (21) with each radially the helical rack (25) on the feed rod match; Some rotating spanners (20) are arranged on the spiral fluted disc; Connect for movable between spiral fluted disc (21) and the rotor (18), can relatively rotate; Upward by thread connection compacting ring (22) is housed at rotor (18), the axial location of spiral fluted disc (21) on rotor (18) limited by compacting ring (22); Radially motor (24) all is housed the inner of feed rod (19) at each, Toothless saw blade (23) all is housed on each motor,

C. the internal diameter of external mold (9), the external diameter of internal mold (11) all need carry out fine finishining.