CZ307631B6 - Pipe Cutting Saw - Google Patents

Abstract

The saw comprises at least one separating unit (3) which is located on the traveling frame (2) fixed directly to the drawing stand (1). In addition to the pulling table (1), on the track (13), at least one clamping carriage (4) is provided, which is provided with hinged stops (11) for clamping 1 to 3 pieces of tubes (6) at once, with a folding lever (9) and clamping levers (10). Furthermore, at least one support carriage (5) is provided on the track (13), which is provided with hinged stops (11 ').

Description

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a saw which divides tubes drawn on a drawing stand and is intended for dividing tubes into production lengths with the separation of tips and ends.

BACKGROUND OF THE INVENTION

The prior art sawing devices for cutting tubes drawn on a drawing stand are designed as follows. After withdrawing the tube in the stool, the tube falls into the collecting pocket. Extracted pipes are collected in the collecting pocket. In the bundle, the tubes are crossed and the ends of the tubes scattered. The tube bundle thus collected is bound and transported to a separate cutting station. At this workstation, the tubes from the bundle must be disassembled manually, and then a separation can be made into a device which is located outside the drawing stand.

These devices have the following drawbacks:

- large installation dimensions

- do not allow to align the tubes directly on the drawing stand

- do not allow the saws to be placed directly on the drawing stand

- do not allow the use of the gravity support of the tubes in the fixtures

- do not allow the gravity to be placed in the collecting pockets

SUMMARY OF THE INVENTION

The above-mentioned disadvantages are overcome by a saw for cutting tubes drawn on a drawing stand according to the invention, which consists in that it consists of at least one cutting unit which is placed on a traveling frame mounted directly on the drawing stand and at least one clamping carriage and at least one support carriage trolley. The clamping carriage and support carriage are located on the rails, next to the towing stand. It is also essential that the clamping carriage is provided with folding stops, a swivel lever and clamping levers and the support carriage is provided with folding stops.

Placing the saw directly on the drawing stand allows the pipes to be cut immediately into production lengths, with tips and ends separated. The arrangement of the saw also allows cutting of pipes into commercial lengths. It is designed for cutting up to 3 pipes simultaneously. The saw is designed for cutting tubes 0 16 to 45 mm, yield strength up to 900 MPa, tubes length 5.5 to 16 m, input curvature of tubes 150 mm. The main advantages are:

- elimination of the operator's strenuous work in splitting pipes during cutting

- eliminating the operator's strenuous work in aligning the tubes during cutting

- Reduction of the current number of workplaces for pipe cutting

Safe operation of the saw is ensured by the following measures:

- saw blade covered

- opening of saw blade cover secured by safety sensor

- the saw belt drive belt and rotating parts are covered with removable covers

- extreme positions are secured by safety sensors and emergency sensors

- protective frame against damage to the saw by crane traverse.

- the entrance to the partition is protected by fences and gateways with security modules

- 1 GB 307631 B6

Clarification of drawings

A saw for cutting tubes drawn on a drawing stand is shown in the accompanying drawings, in which Fig. 1 shows schematically the arrangement of the entire sawing device on the running frame with the pipes shown in side view; Fig. 2 schematically shows the arrangement of the entire sawing device including the drawbench and support trolley. Giant. Fig. 3 shows a particular arrangement of the splitting unit and the clamping carriage showing the cross-section of the tubes; Fig. 4 shows the arrangement with the support carriage.

DETAILED DESCRIPTION OF THE INVENTION

The whole saw device can consist of several own sawing units 3 and clamping carriages 4, and support carriages 5, which travel on a traveling frame 2 which is mounted directly on the drawing stand 1.

According to an exemplary embodiment, the saw consists of four dividing units 3, four clamping carriages 4 and one support carriage 5. The dividing units 3 travel on the traveling frame 2, on the floor next to the drawing stand 1 an anchorage 13 is anchored, after which the clamping carriages 4 and supporting The clamping carriages 4 are provided with folding stops 11 for absorbing the gravitational force of the moving tubes, the swivel levers 9 for optimum positioning of the cutting tubes, clamping levers 10 for clamping three pieces of tubes 6. The support carriage 5 is provided with folding stops 1Γ and for supporting the long tubes 6 to prevent large deflection. A tilting table 8 is connected to the drawing table 1 followed by a chute 7. An integral part of the saw are the tube storage tanks 12, the chip and chip boxes, the hydraulic station including the control block, the piping, the control panel and the electrical equipment. From the safety point of view the saw is equipped with protective covers and the whole workplace is fenced.

The three extruded tubes 6 are flush with the front ends, and are mounted on the tilting table 8. By tilting the tilting table 8, the tubes 6 roll down on the sliding 7 to the folding stops 11 of the chuck 4 and to the folding stops 1Γ of the support carriage. the tubes 6 are stopped. The swivel levers 9 slide the tubes 6 into the notch and create the optimum position of the tubes 6 for cutting. Then the tubes 6 are clamped by clamping levers 10 in the clamping carriage 4. After the tubes 6 are clamped, the stroke of the saw slide starts with the headstock of all active cutting units 3 down at rapid traverse. When the desired stroke position is reached, the rapid traverse changes to the cutting feedrate. The saws of the splitting units 3 cut and return to the starting position. The clamping carriages 4 with the split tubes 6 travel 150 mm, thereby creating a gap between the tubes 6 for better subsequent clearance of the bundle from the magazine 12. The clamping levers 10 are opened, the folding stops 11 are lowered and the tubes 6 are rolled down. the inclined chute 7 into the tube magazine 12. The truncated tips and ends of the tubes 6 are rolled into the chip and chip box after slipping. The folding stops 11, 1Γ return to the upper position. The clamping carriages 4 also return to their initial position. A new division cycle follows.

The procedure is the same for dividing one, two or three tubes.

PATENT CLAIMS

Claims (2)

A saw for cutting tubes drawn on a drawing stand, characterized in that it consists of at least one cutting unit (3), which is located on a traveling frame (2) mounted directly on the drawing stand (1), and at least one clamping carriage (4), which is provided with hinged stops (11) for clamping 1 to 3 pieces of pipes (6) at a time, a folding lever (9) and clamping levers (10) and at least one support carriage (5), 13), next to the drawing stand (1). -2GB 307631 B6 Pipe cutting saw according to claim 1, characterized in that the support carriage (5) is provided with hinged stops (1Γ).