CN1050507A

CN1050507A - Special steel tubes rolling and extruding equipment

Info

Publication number: CN1050507A
Application number: CN 90104234
Authority: CN
Inventors: 王瑞峰; 高峰
Original assignee: Affiliated Enterprise Of Chengde Iron And Steel Works; HEBEI ELECTROMECHANIC COLLEGE
Current assignee: Affiliated Enterprise Of Chengde Iron And Steel Works; HEBEI ELECTROMECHANIC COLLEGE
Priority date: 1990-06-08
Filing date: 1990-06-08
Publication date: 1991-04-10
Anticipated expiration: 2005-06-08
Also published as: CN1022170C

Abstract

The present invention relates to a kind of process units of steel tubes.Its basic structure is dc motor 1 process gear 2, drives many to format roll 3 compositions.For enhancing productivity, format roll 3 front portions can be added with a draw-off gear 6, and format roll 3 rear portions can be added with a squeeze device.For enhancing productivity and ensuring the quality of products, be added with an electronic computer, with the control whole process of production.This steel tubes process units based on edging can be done the steel tubes of different shape, and quality meets the demands, and energy consumption and cost are starkly lower than welding and cold-drawing process.

Description

Special steel tubes rolling and extruding equipment

The present invention relates to a kind of steel tubes pressurizing unit.

The production method of existing steel tubes has two kinds, and a kind of is welding, and producing steel pipe in this way is to carry out on bonding machine, continuity of production process is strong, speed is high, but the production line length is difficult to eliminate fully welding gravitation, and just powerless to complex-shaped kind; Second kind is cold-drawing process, promptly by drawbench traction pipe, makes pipe produce plastic deformation in special-shaped fixed die and obtains the special-shaped section steel pipe.The equipment of this draw method is simple, can just can obtain the product of corresponding section by the mould of changing different passes, and relatively flexibly, but mould and intermetallic are sliding friction, make cold-drawn power very big, and energy consumption is many; The easy plucking of product surface; Die wear is fast, the life-span is low and influence dimensional accuracy; Workpiece sclerosis because finished surface becomes through 2-3 cold-drawn, must be carried out annealing in process, has increased annealing device and corresponding energy consumption, also owing to taking the lead draw, needs through annealing, pickling before pulling out, takes the lead; Want crop to truncate during scale, excise approximately about 5%, influenced lumber recovery.

The purpose of this invention is to provide a kind of good product quality, the device of production efficiency height, wide in variety, multistage special steel tubes rolling and extruding that energy consumption is low.

The present invention, is driven many sleeve formings roller 3 and rotates through gear 2 by dc motor 1 as shown in Figure 1, and every suit format roll 3 is fixed on the framework with a pair of horizontal roller 9 by a pair of vertical roller 3 and constitutes as shown in Figure 2.In order to improve edging speed, be added with a squeeze device at format roll 3 rear portions, squeeze device is made of oil cylinder 4 and crowded push-plate 5, its production process is as follows: connect the dc motor 1 of power supply, and slack-off through gear 2 rotating speeds, drive many sleeve formings roller 3 and rotate simultaneously, work piece is sent in the hole of format roll, work piece just can move horizontally forward with the velocity of rotation of format roll 3, and through multiple tracks format roll 3, last edging goes out needed steel tubes.In order to raise the efficiency, the oil cylinder 4 and the dc motor 1 of squeeze device start simultaneously, are pushing away workpiece by crowded push-plate 5 and are going ahead.For satisfying the needs of society to the different shape steel pipe, the vertical roller 8 of format roll 3 and horizontal roller 9 can be made corresponding format roll according to actual needs, as spare part, to press product requirement transposing format roll 3.

For further improving edging speed, be added with a draw-off gear 6 in the front portion of forming rolls 3.This draw-off gear 6 is identical with common drawing apparatus.Also can not add squeeze device, only add draw-off gear 6.

In order to control whole process of production, improve the quality of products, more than several assembling modes all can add an automaton, it mainly is made up of an electronic computer and executive component mechanism.

Advantage of the present invention is tangible: the edging method replaces welding and cold-drawing process to produce steel tubes, overcome welding and be difficult to eliminate fully weld seam gravitation, steel tubes and the cold-drawing process that can't produce complicated shape are difficult to ensure the quality of products, annealing in process process complexity, the disadvantage that energy consumption is high, this production method is easily ensured the quality of products, the production efficiency height, and can be according to actual needs, adjust the shape of forming rolls, can produce various shape tubes.Add with electronics computer control whole process of production, product quality and production efficiency are improved, had more reliably to guarantee.

Fig. 1 is a structure drawing of device of the present invention;

Fig. 2 is the structure chart of format roll 3.

A kind of implement by 40 kilowatts dc motor 1 of the present invention drives 3 rotations of eight grades of format rolls through three-stage speed change mechanism 2, is added with a squeeze device at eight grades of format roll 3 rear portions and the front portion is added with an Automatic Control Component.Squeeze device is made of oil cylinder 4 and crowded push-plate 5.Automatic Control Component is made of a director city 386 electronic computers and executing agency.Vertical axis 8 diameters of format roll 3 are at the 70-85 millimeter, and trunnion axis 9 diameters are the 50-65 millimeter.This device is through 40 * 30 millimeters of edgings, 55 * 56 millimeters square type pipe, and 38 * 38 millimeters, 40 * 40 millimeters, 45 * 45 millimeters, 50 * 50 millimeters square pipe and minor axis are that 40 millimeters, major axis are 50 millimeters ellipse pipe, all can satisfy actual needs.

Claims

1, a kind of special steel tubes rolling and extruding equipment is characterized in that being driven many sleeve formings roller 3 and being constituted by dc motor 1 process gear 2, and every suit format roll 3 is fixed together by a pair of vertical roller 8 and a pair of horizontal roller 9 and constitutes.

2, special steel tubes rolling and extruding equipment according to claim 1 is characterized in that being added with in the front portion of format roll 3 draw-off gear 6.

3, special steel tubes rolling and extruding equipment according to claim 1 is characterized in that being added with a squeeze device at the rear portion of format roll 3, and squeeze device is made of oil cylinder 4 and crowded push-plate 5.

4, special steel tubes rolling and extruding equipment according to claim 1 is characterized in that being added with a draw-off gear 6 in format roll 3 front portions, is added with a squeeze device at the rear portion of format roll 3, and squeeze device is made of oil cylinder 4 and crowded push-plate 5.

5, according to claim 1 or 2 or 3 or 4 described special steel tubes rolling and extruding equipments, it is characterized in that being added with an automaton, it mainly is made of an electronic computer 7.