PL210916B1 - The method and device for production of bent profiles - Google Patents

Description

REPUBLIC

POLAND

The Patent Office of the Republic of Poland (54) (43) The application was published:

(12) PATENT DESCRIPTION (19) PL (11) 210916 (13) B1 (21) Application number: 378904 ^{(51) Int.Cl.}

B21D 11/02 (2006.01) B21D 43/08 (2006.01) (22) Date of notification: 04/02/2006

Method and device for the production of bent profiles (73) Authorized by the patent:

ZAKŁAD USŁUGOWO-HANDLOWY

TERMOSPEC SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ, Żory, PL

06.08.2007 BUP 16/07 (45) The following was announced about the grant of the patent:

30.03.2012 WUP 03/12 (72) Inventor (s):

PIOTR ŁUSKA, Wodzisław Śląski, PL JAN GOJNY, Radlin, PL EFREM PRYSZCZ, Pawłów, PL (74) Plenipotentiary:

item. stalemate. Jolanta Woźniak

PL 210 916 B1

Description of the invention

The subject of the invention is a method and device for the production of profiles bent from pipes, especially copper pipes, used in devices for cooling air and water in underground mining excavations.

There is known from the Polish application P-309311 a method and a device for shaping profiles of closed elements, especially metal pipes, in which the shaping takes place by cyclically pushing and pushing closed elements. In the first phase, the closed element is pushed into the shaping rollers and after the movable part of the drive subassembly has been withdrawn, another closed element is placed in the working channel. In the second phase, this next element is pushed between the shaping rollers, forcing the element pushed there in the first phase with it. The device for carrying out this method consists of an operating subassembly having a shaping unit with rollers, a storage and feeding subassembly containing a reservoir and a replaceable guiding sleeve, and a drive subassembly. The guide sleeve is situated in the working channel in front of the shaping unit. It turned out unexpectedly that it is possible to significantly increase the efficiency and improve the operation of the device thanks to the new design of the bending head assembly and the controller used in the device.

The method according to the invention consists in straightening the pipe, then shaping its cross-section, giving the appropriate profile, which in turn is bent, the process taking place continuously by winding the pipe on a roll through a handle.

The device according to the invention is equipped with a pipe feeding hopper, a set of rollers straightening the pipe, a rolling mill, a feeding support, a bending head and a controller, characterized by the fact that the bending head has two rollers and two arms that rotate around the axis of these rollers, the arms being driven they are made by sliders constituting an integral part of the turntable, which has an axis of rotation at the point of contact of the rollers and performs alternately half a turn by 180 °, taking with sliders the arms on which the handles are mounted, which are equipped with jaws clamped with a pneumatic actuator controlled by a microprocessor controller.

The device according to the invention is shown in more detail in the embodiment in the schematic drawing, in which Fig. 1 shows a diagram of the bending device, Fig. 2 shows the method of bending the pipe in the bending head, and Fig. 3 shows the drive of the arms of the bending head.

According to the invention, the device comprises a hopper 2 feeding a tube 1, a set of rollers 3 straightening this tube, a rolling mill 4 giving the required profile for a tube 1, a feeding carriage 5 equipped with clamping jaws 6, a rotary table 7, a bending head 8, a roller conveyor 9 and a controller 10 microprocessor.

The device operates in such a way that the coiled copper pipe 1 from the feeding hopper 2 passes through a set of straightening rollers 3 and then into a rolling mill 4 where it obtains the required cross-sectional shape. The movement of the tube 1 is imposed by a feeding carriage 5 which performs a reciprocating movement. After each stroke of the carriage 5 from the position "a" to "b", the jaws 6 of its holder are clamped on the tube 1 and move it. In position "b" the jaws 6 of the chuck open and the carriage 5 returns automatically to position "a". During this time, the rotary table 7 rotates from the position "c" to "d" and drives the bending head 8, which bends the pipe 1. Integrally with the bending head 8, the rotary table 7 works, which supports the bent meander of the pipe 1 and moves it during the extension pipes through a 9-roll feeder. The rotary table 7 can make a maximum rotary movement contained in an angle of 180 °. The axis of rotation of the rotary table 7 is at the "0" point, ie the contact of the rollers A and B, which are selected with the diameter and width of the groove depending on the diameter of the pipe 1. The rollers A and B rotate freely around their own rotation axes. The distance of the pivot points of these rollers is equal to the sum of their radii. The geometry of the groove in rollers A and B allows for free insertion of the pipe profile 1. Around the axis of rotation of rollers A and B rotate grips mounted on R 'and R arms, which are equipped with S jaws clamped with pneumatic cylinders. The rotational movement of the arms R ', R together with the handles is caused by the rotary table 7. Rollers A and B, on which the pipe 1 profile is bent, remain in the same position all the time and rotate freely around their own axes. The bending of the pipe 1 is performed alternately by the arms R ', R together with the holders S1, S2 fitted with jaws installed thereon. The arms R ', R rotate each about the axis of the roller A and B. The drive on the arms R', R carry the sliders 11 and 12, which are an integral part of the rotary table 7, which performs alternately half a turn by 180 °, taking the slides 11 and 12 together with the arms R ', R. During the rotation of the rotary table 7 one of the arms always bends the profile of the pipe 1 and the other arm returns. The clamping of the chuck jaws S1, S2 on the pipe profile 1 is controlled by the processor microPL 210 916 B1 which controls the operation of the entire device, starts each drive and controls the entire production process. The device has three independent electric drives: the drive of the feeding carriage 5, the drive of the rotary table 7 and the drive of the roller feeder 9, whose task is to shift the entire meander on the rotary table 7 during the extension of the feeding carriage 5.

Claims (3)

Patent claims The method according to the invention consisting in straightening the pipe, shaping its cross-section in order to obtain the appropriate profile, which in turn is subjected to bending, characterized in that the process of straightening the pipe (1), shaping its profile and bending it takes place continuously by winding the pipe ( 1) onto the roller (A) through the holder (S1) or onto the roller (B) through the holder (S2). 2. A device for the production of bent profiles equipped with a pipe feeding tray, a set of rollers straightening the pipe, a rolling mill, a feeding support, a bending head and a controller, characterized in that the bending head (8) has two rollers (A and B) and two arms (R ', R) which rotate around the axis of these rollers, while the arms (R', and R) are driven by sliders (11, 12) constituting an integral part of the rotary table (7), which has an axis of rotation ("0") in the contact point of the rollers (A and B) and alternately performs a half-turn by 180 °, taking with the sliders (11, 12) the arms (R ', R) on which the handles (S1, S2) are mounted, equipped with jaws clamped with a pneumatic actuator controlled a microprocessor controller (10). 3. The device according to claim 1 A device according to claim 2, characterized in that the roller feeder (9) cooperates with the turntable (7).