SU1454586A1 - Band saw - Google Patents

Abstract

The invention relates to metal cutting. The purpose of the invention is to increase productivity and operational reliability. The device comprises a frame 1, a saw frame 7, a main movement drive 9, a feed drive (hydraulic cylinder) 8, pulleys 11 and 12 with a cutting tape 13, turning mechanisms 17.18 of the cutting tape 13. Devices for moving a section of the cutting tape 13 in a direction parallel to - cheeks

Description

one

The invention relates to the processing of metals by cutting and can be used in the shops of metallurgical plants when cutting flat products and plates,

The purpose of the invention is to increase productivity. which is achieved by reducing the auxiliary time required for removal of the material being cut from the cutting tape after each cut. i Figure 1 schematically shows a tape saw; figure 2 - section: aa in figure 1; Fig. 3 shows the lower mechanisms of removal and reversal of the tape cutter (the upper mechanisms of removal and reversal of the cutting tape are similar in design to the lower ones); figure 4 - section bb on .Z; figure 5 - section bb In fig.Z.

The band saw contains a frame 1 on the upper plane of which the top beam 2 is mounted, and on the crown i of the 3 in (Foundation - bottom ball: ka 4.

On frame 1 rigidly fixed

1 two traverses 5, on each of which

i i.

: mounted on two clamps 6, each carrying the vertical clamp once

; cut material.

On the upper beam 2 and the lower beam 4, a saw frame 7 is mounted, which has the ability to move along the beams 2 and 4 by means of a hydraulic cylinder 8.

On the lower plane of the saw frame 7, the drive 9 of the main movement (electric motor) is fixed, which is connected to the drive pulley II, mounted in the lower part of the saw frame 7, via a gearbox 10.

In the upper part of the saw frame 7, an idler pulley 12 is installed. On the drive pulley 11 and the idler pulley 12, the cutting tape 13 is mounted with tension. The tension of the cutting tape

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13 is carried out by a tensioning mechanism 14 mounted on the saw frame 7. To ensure safety conditions, the idler pulley 12 is covered by a casing 15.

On the saw frame 7, in the direction of its cutting, two photo relays 16 are mounted, which are designed to automate the saw cutting cycle. One photo relay 16 is located in front of the cutting tape 13 in the feed direction, and the second behind the cutting tape 13.

The saw contains the lower 17 and upper NII 18 mechanisms for turning the cutting tape 13, which are designed to turn the section of the cutting tape 13 by means of the teeth to the material being cut. In addition, the saw contains devices 19 and 20 for moving a portion of the cutting tape 13 in a direction parallel to forming pulleys 11 and 12.

The devices 19 and 20 for moving the section of the cutting tape 13 consist of double-arm levers 21 hingedly placed on the saw frame 7. One of the shoulders of the double-arm levers 21 is made in the form of sleeves with a longitudinal groove in a plane parallel to the forming PGK 11 and 12, and the second pivotally connected to the stem of the hydraulic cylinder 22. On each of the shoulders of the double-arm levers 21, made in the form of bushings, the sleeves 23 of the lower 17 and upper 18 of the reversal mechanisms of the cutting tape 13 are fitted with a longitudinal groove. Sleeves 23 installed on duplex. The levers 21 with the possibility of turning and rigid fixation with the help of a spring clamp (not shown). Racks 24 are mounted on sleeves 23, each carrying two deflecting rollers 25 and one supporting roller 26 in contact with the cutting tape 13. In addition, on the rack 24 of the upper mechanism 18 of the turning of the cutting tape 13

The mechanism 27 for catching the cutting tape 13 when it is formed is mounted, and on the upright 24 of the lower 17 of the turning mechanism of the cutting tape 13, a slit 28 is designed to remove the chips formed during the cutting process.

Adjusting bolts are provided on the double-shouldered levers 21 of the upper 20 and lower 19 devices for moving the section of the cutting tape 13. With the help of adjusting bolts 29 contacting .. with. horizontal sections of the saw frame 7, adjustment of the initial position of two shoulders rymag 21 devices for moving the cutting tape section 13 is carried out with which the deflecting rollers 25 of the upper 18 and lower 17 turning mechanisms of the cutting tape 13 are in the same vertical plane, which corresponds to the vertical position cutting tape 13. With the help of adjusting bolts 29, which are in contact with the side surface: of the saw frame 7, the angle of the double-arm levers 21 is adjusted from their original dix defined by the size of the gap between the bearing surfaces of the adjusting bolts 29 and the surface of the guide frame 7.

Before the start of operation, the band saw mechanisms are in the initial position, in which the saw frame 7 is in the initial position, the vertical clips 6 are raised to the edge. its upper position, cutting tape 13 tension.

The material being cut is introduced into the saw zone and stops. The vertical clips 6 are turned on, open on the crossbeam 5. After the cutting material is clamped, the drive 9 of the main movement (rotation of the cutting tape) and the hydraulic cylinder 8 supply the saw frame 7, which begins to move, turn on

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on the material being cut at idle speed.

When the photorelay 16 mounted on the saw frame 7 in front of the cutting tape 13 in the feed direction is darkened by the material being cut, the saw frame 7 goes over to the working feed and the cutting tape 13 cuts the material. The command to disable the hydraulic cylinder 8 gives ..i. a photo relay 16 mounted on the saw frame 7 behind the cutting tape 13 in the direction of pressure. Next, a command is issued to remove the clamps 6 and retract the cut part of the material, after which the section of the cutting tape 13 is moved in a direction parallel to the circumference ;; It is possible to drive Shkivs 11 and 12 with the help of hydraulic cylinders 22, and the section of the cutting tape 13 is moved in the direction from the material being cut. Thereafter, the saw frame 7 returns to its original position at idle speed.

After returning the saw frame 7 in. the initial position of the cutting belt 13 is returned to the working position.

Thus, the saw blade mechanisms 0 are prepared for the next start.

Claims (1)

The invention of the Band Saw, containing the saw frame located on the frame, with the main drive, movement and feed, carrying pulleys with a cutting tape and the tape turning mechanism, so that, in order to increase No performance, the saw is equipped with devices for moving the section of the cutting tape in the direction parallel to the forming pulleys, made in the form of two shoulders, the ball is placed on the saw frame, one shoulder of which is rigidly connected with the turning mechanisms, and the other with the rods inserted into the sawidrotsilindrov. 13 -28 Zi FIG. g Fi9.3 gu Compiled by N, Finsch Editor T. Lazorenko Tehred.Hodanich Bb Fi.Z Proofreader N.Korol