SU992136A1 - Apparatus for separating shaped rolled stock - Google Patents

Description

(54) DEVICE FOR PROFILE SEPARATION

1S

The invention relates to the processing of metals by pressure, namely, forging and pressing equipment, and can be used in the preparation shops of metalworking plants for the manufacture of blanks used in the manufacture of building products: mobile trailers, module containers, metal doorframes, etc.

Devices are known for cutting rolled sections carried out by mechanical and flame methods. Such devices include mechanical and manual scissors of all types, circular saws and band-sawing machines, various pantograph type 1 machines.

However, cutting with such devices with chip removal, is accompanied by specific noise, does not provide high dimensional accuracy and surface cleanliness, and has low productivity.

A device for the separation of sectional rolled products is known, comprising a frame, dies, knives and a clamping device for shaped blanks 2.

RENTAL

The disadvantages of this device are the impossibility of cutting at an angle, limiting the size of sections and lengths of shaped blanks, the lack of clean cut surface, the presence of waste, and low productivity.

The purpose of the invention is to increase the productivity and accuracy of cutting profiles of various sizes.

The goal is achieved by the fact that .Q in the device for the separation of rolled sections containing a frame, dies, knives and a clamping device for shaped blanks, the frame is made in two parts, each of which is equipped with drive blocks of heads, made in the form of levers with installed on them the rollers and holders of the driving copy roller, installed with the possibility of reciprocating movement and contact with the rollers, the dies are made detachable in the form of profile supports and mounted on parts with The tannins are symmetrical with respect to the rolled steel and at an angle of 45 ° to the rolled axis, with the knives mounted on the said holders and placed between the matrices with a gap.

FIG. 1 shows the unit, the general scheme; in fig. 2 is a section A-A in FIG. in fig. 3 - block of knives and dies; in fig. 4 is a diagram of the action of knives.

A device for dividing rolled sections contains a tray (not shown) on which a profile log is mounted, 1 of steel and other metals, a clamping device 2 located on the same tray, and two detachable (consisting of two halves) matrices 3 a support for cutting from the inside of the profile to the outside surface.

The dies are mounted on two separate parts of the bed, arranged symmetrically at an angle of 45 ° to the profile blank 1. On the same beds (not shown) there are mounted blocks of 4 heads, driven by a hydraulic drive 5. Block 4 of the head consists of a copy roller 6, reciprocating from the actuator 5 and acting on the rollers 7, driving the levers 8, with which the recipients 9 are reciprocated, on which the knives 10 are fixed, turning by an angle of 15 ° with corner cut of the profile blank. The head unit 4 is returned to its original position by means of a cam 11, acting on the toothed rack 12, which is in constant engagement with the gear wheel 13 mounted on the head block 4 during the return stroke of the hydraulic actuator, while the spring 14 connected to the lever 8, returns the holders 9 with the knives 10 to their original position.

The device works as follows.

A lifting mechanism (not shown) installs the profile blank 1 into the clamping device 2 and simultaneously into the matrix 3, where the blank is also fixed.

The knives 10 are installed between the dies with a gap equal to 6-8% of the thickness of the profile blank. The knives 10 perform an angular cut of the workpiece from the inside of the profile to the outside, after cutting the head unit 4 is rotated by an angle of 15 ° and the remaining jumpers are cut on the cutting plane of the workpiece, thereby achieving accuracy and cleanliness of the cut.

The presence of the remaining jumpers is due to the fact that the knives and dies are sliding. After the end of the cut, the block 4 of the head is rotated by means of a copier 11, a gear

rails 12 and the gear wheel 13 to its original position during the reverse course of the hydraulic actuator 5.

Spring 14 during the reverse course returns the holders 9 with knives 10 to its original position.

The use of the proposed device allows to reduce the man-made and auxiliary time, to eliminate the fitting and finishing manual work, which reduces the complexity and increases productivity

labor. The simultaneous double-sided cut to the exact size needed improves the quality of the workpieces; the absence of waste increases the utilization rate of the metal.

Claims (2)

Invention Formula A device for dividing rolled sections containing a frame, dies, knives and a clamping device for profiles, characterized in that, in order to increase productivity and cutting accuracy of profiles of various sizes, the frame is made in two parts, each of which is equipped with driving blocks heads, made in the form of levers with rollers and holders mounted on them, driving copy roller, installed with the possibility of reciprocating motion and contact with rollers, of the matrix in Full detachable as supports for the profile and are mounted on portions of the frame symmetrically relative to the profile rolling and at 45 ° to the rolling axis, wherein the blades are fixed on said holders and mounted with a gap between the dies. Sources of information taken into account in the examination 1. Machine company "Eiseele type HB 280 N Prospect firm Hreisel Muschinenfabrik D-7316 Könggen / nekar, Germany, 1978. 5 2. USSR author's certificate No. 405705, cl. In 23 D 23/00, 1971 (prototype). Tt / frt i cet / ff / fJi / / gros ec / J