SU1752468A1 - Line for spirally finning pipes with tape - Google Patents

Abstract

Use: metal forming, production of heat exchangers and other products with spiral ribs. SUMMARY OF THE INVENTION: The line contains a loading device with a source tube magazine, a cutting machine, a feed mechanism, and a drive chain with a pusher associated with the drive. Further downstream the process is installed a device for calibrating pipes with calibrating rollers and a drive. The calibrating device is followed by a receiving-feeding rack containing rollers, a guide tray, a dumping mechanism, a shut-off device, a drive chain with a pusher connected to the drive. Behind the rack is installed a device for rolling knurling on a pipe with rollers and a drive. Behind the rolling device there is a rack containing a pipe extraction mechanism, a tray, a tripper device, a cut-off device, a drive chain with a pusher associated with the drive. The device for forming a tape into a spiral containing a spindle and a shaping flange follows the zlee. The spindle is connected through a drive coupling. This is followed by a device for gripping and axial movement of the pipe, consisting of a replaceable collet connected to the elastic element by means of a rod on which a gear wheel is connected, which is connected with the drive of pipe rotation and the drive of axial movement in the form of a screw pair through electromagnetic clutches. 4 hp f-ly, 2 ill.

Description

The invention relates to the processing of metals by pressure, in particular to equipment for the production of silver pipes.

The known line for spiraling the tubes with tape, containing installed along the process and kinematically interconnected loading device, a device for rolling grooves on the pipe, a device for forming a tape into a spiral, a device for rolling the tape into the grooves, a device for receiving a silver pipe. , a device for trimming a pipe; a device for unwinding a tape; a control system.

Also known is a line for spiral ribbing of pipes with tape, containing installed along the process and kinematically interconnected by means of a drive, a loading device, a calibration device, a device for rolling grooves on the pipe surface, a device for unwinding and feeding the tape, a device for forming a tape in spiral, a device for rolling a spiral into the grooves, a receiving device in the form of a tray rigidly fixed on the frame, a device for cutting pipes, a device for storing the finned tubes, the locking mechanism and support the finned tubes associated with the receiving device, and smon ted in the device for unwinding and feeding a tape follower gear with an atomizing feed position along the ribbon axis electrical contacts coupled to the control system.

The disadvantage of the described line is the difficulty in maintaining the line, due to the complexity of the kinematic connection of all the devices of the line among themselves, which have a single drive. When changing the line, it is necessary to replace each of the executive bodies of the devices, including the receiving device.

The aim of the invention is to improve the usability s.

This goal is achieved by the fact that in a line for spiral finning of pipes with a tape containing a loading device for pipes, a device for calibration, pipes, a knurling device, a device for unwinding and feeding a tape, a device for forming a tape into a spiral, the device for gripping and axial movement of the pipe, the receiving device and the drive means associated with the control system, the receiving device is electrically connected with the device for gripping and axial movement of the pipe, is set curved on the guide with the possibility of reciprocating movement parallel to the fin axis and equipped with a lifting and lowering mechanism, an angular displacement mechanism in a plane, perpendicular to the feeding axis of the finned tube, and a tube clamping mechanism, with the device forming a tape in a spiral kinematically connected , a device for gripping and axial movement are coarse, with a device for calibrating pipes, a device for knurling, a device for forming a band into a spiral with a device for gripping and axial movement tim pipe and a receiving device adapted to autonomous drive.

The clamping mechanism of the pipe is made in the form of clamping plates, rack-and-pinion gear and a power cylinder, while the clamping plates are installed on the axes with the possibility of angular rotation in the plane perpendicular to the axis of the pipe feed. by means of the mentioned rack and pinion gear,

The mechanism of the angular displacement is made in the form of a ram cylinder mounted on a guide receiving device of a lever connected at one end with a rod of a ram cylinder and at the other end with a receiver device

The lifting and lowering mechanism is made in the form of an intake device of the power cylinder connected to the tray, guiding columns connected rigidly to the receiving tray, and adjustable stops installed

0 NUU with the ability to interact with the columns. The device for gripping and axial movement of the pipe is made in the form of a replaceable collet mounted on the guide, coaxially mounted with the collet

5 of an elastic element, a rod, by means of which a collet is connected with an elastic element

Fig. 1 depicts a kinematic scheme of pine dp of spiral fin,

0 Fig 2 - receiving device line

A line for spiral ribbons ° coarsely with a tape contains a loading device with a magazine 2 of the source pipes and a feeder consisting of 5 water circuit 4 with a pusher 5 connected to the actuator 6. Behind the loading device along the pipe feed axis there is a device 7 for calibration of the source tubes containing calibration rollers 8, associated with the rotational drive 9. Next, there is a receiving-feeding rack 10, which contains a mechanism for extracting pipes, consisting of a drive roller and 11, a guide tray 12 with a dumping mechanism 13, a cutter

5 14, and a feed mechanism consisting of an operating circuit 15 with a pusher 16 connected to the drive 17 Behind the rack 10 there is a device for rolling knurling on the tube 18 with the rolling rollers 19 connected to the drive 20. A rolling device is placed the next receiving-feeding rack 21 with a drive mechanism for extracting coarse 22 from a rolling device, a guide tray 23, a mechanism 24

5, a cut-off 25 and a feed mechanism consisting of a drive chain 26 with a pusher 27 connected to an actuator 28 Along the axis of movement of the pipe 29 are located: a device for forming a tape in the spiral 30, including a hollow spindle 31 and a forming flange 32, at the same time, the spindle 31 through an electromagnetic clutch 33 is connected with a drive 34. With a device for forming a helix into a spiral kinematmche

5 is a device for gripping and axial movement of a pipe 35, consisting of a replaceable collet 36, associated with an elastic element 37 by means of a ramrod 38 and a spindle 39 on which a gear 40 is mounted, which is connected with a rotational drive of the pipe 41 and drive axial movement, made in the form of a screw peer 42, through the electromagnetic coupling reverse 43 and stroke 44.

A device for gripping and moving the tube 35 is mounted on the guide 45 and connected to the tape forming device 30 by means of a chain gear 46, a driven fork 47, a shaft 48 and a chain gear 49 Parallel to the fin axis, a receiving device for the guide 50 srebrennyh pipes, made in the form of a tray 51, equipped with a mechanism for lifting and lowering it, made in the vice pneumatic cylinders 52 and columns 53 with adjustable stops 54, an angular displacement mechanism, made in the form of a pneumatic cylinder 55, rod to Second, it is fixed on the lever G6 placed on the rail 50 with the ability to move the tray angularly. On the tray 51, a press pipe clamping mechanism 52 is assembled consisting of pressure plates 58 rigidly mounted on axles 59 interacting through pin gears 60 with pneumatic cylinder 61. The receiving device is electrically connected to the device 35 for gripping and moving the pipe using limit switches 62

On the side of the tape forming device, a spreader 30 is mounted on the unwinding and feeding device 03 where the roll of tape is placed. The device 35 for gripping and moving the pipe is provided with a pneumatic cylinder 64 interacting with an elastic element 37. All the mechanisms of the line are connected with a control system (not shown). A device 7 for calibrating pipes, a device 18 for rolling knurled ribbings on a pipe, a device 30 for forming a tape into a spiral with a device 35 for gripping and axial movement of a pipe are made with independent drives.

In the initial position, the pipe blanks are placed in the magazine 2, the tape roll is mounted on the unwinding device 03, the tape is loaded into the coiling tool 32 of the device 30 to form the tape into a spiral.

The receiving device with the tray 51 is retracted from the working area, the clamping strips 58 are unclenched. The device 35 for gripping and moving coarse is in the extreme left position. The pneumatic cylinder 64 acts on the elastic element 37, squeezing it, and the collet 36 is in the relaxed state. All electromagnetic clutches are disabled. Drives 9, 20 and 34 included

The line is designed for finning tubes of small length 0.5 -3 m and works as follows.

A cutter 3 from the magazine 2 removes one pipe and enters its initial position. The drive 6 is turned on and due to the movement of the chain 4 by the pusher 5 the pipe is fed to the rollers 8 of the device 7 for calibration. Rotating rollers 8 associated with

0 by the actuator 9, the pipe is gripped, the rotation and translational movement are communicated to each other. The calibration rollers 8 calibrate the outer diameter of the pipe by a predetermined value. The calibrated pipe is fed to the receiving 5 supply rack 10.

Using the drive roller 11, the pipe is completely removed from the calibration device 7 and laid on the guide tray 12. Then the pipe is discharged by means of the mechanism 13 into a storage device (not shown) designed for several pipes. The loading device 1, the device 7 for calibrating the source pipes, the receiving-creeping shelf 10 are operated continuously

5 before filling the accumulator. One pipe is removed from the accumulator 14 by the cutter 14 and is fed to the initial position. Next, the pipe is moved to the rolling device 18. Where the knurling of the corrugations on the pipe is performed,

0Then the pipe is fed into the receiving and feeding rack 21. Moving the pipe along the receiving and feeding rack 21, as well as its supply to the device 30 to form a tape into a spiral, are similar to the previously described procedure. Pass through the device to form a tape into a spiral end of the pipe 29 enters the collet 36. - the lindr 64 releases the elastic element 37, which clamps the pipe through the ramrod 38 with the collet 36, rigidly fixing it with respect to the spindle 39. The pipe begins to rotate. Next, at the same time, the coupling 33 of the tape forming device into the coil and the operating sleeve 44 closes. Is given in

5, the rotation of the nut of the screw pair 42. The device 35 for gripping and axial movement of the pipe with pipe 29 is transmitted in translation, with the device 35 being moved by one magnitude with one tube;

0 equal to the pitch. At the same time, simultaneously with the beginning of the movement of the pipe, the spindle 31, which interacts with the flange 32 and winds the helix onto the pipe, is rotated. There is a spiral ribbing of the pipe. When the device 35 is moved, the limit switch 62 and the pneumatic cylinder 55 from it are activated, performing an angular repositioning of the tray 51 relative to the guide 50.

In the position of the tray 51 under the finned tube, the pneumatic cylinder 52 is actuated and the tray is raised and supplied to the tube. This position is fixed by the columns 53 and the stops 54. The process continues until the ribbing of the desired pipe length. In this case, the coupling 33 is disconnected, the spindle 31 stops and, due to the rotation of the pipe, the helix is separated, i.e. the tape is separated, the pipe is moved by the device 35 to capture and move the pipe until it is completely out of the device 30 to form the tape into a spiral. The pneumatic cylinder 64 is then actuated, acting on the resilient element 37. The collet 36 expands and releases the pipe. Next, pneumatic cylinders 61 are actuated, which with the help of rack gear 60 rotates the axles 59 with the clamping bars 58. The ribbed tube is fixed relative to the tray 51. The movement of the device 35 continues until a gap appears between the collet 36 and the end of the pipe, and at this moment the coupling 44 opens and device 35 stops. Then the pneumatic cylinder 55 is activated and an angled retraction of the tray 51 with the silver pipe to its initial position occurs. When the lath 58 is released, the silver tube is released and goes into the container. When the coupling 43 is closed, the device 35 is moved and the pipe is moved to its initial position. The line is ready for the finning of the next tube.

The advantage of this line for spiral ribbing of pipes with tape compared to the known one is that the presence in the line of a receiving device equipped with a pipe pressing mechanism, an angular movement mechanism, lifting and lowering, and the possibility of moving it parallel to the fin axis, allows receiving and unloading silver-plated pipes of short length, which makes the line more universal. Performing a device for calibrating pipes, a rolling device, a device for forming a tape into a coil with a device for gripping and axial movement of a pipe and a receiving device with autonomous drives allows to simplify the kinematic connection between them and process pipes of short length (0.5-3.0 m) and any diameter.

The presence in the line of the device for gripping and axial movement of the pipe, kinematically connected with the device for forming the tape into a spiral, ensures the stability and stability of the fin pitch and the uniform winding of the tape into a spiral, which contributes to the improvement of the quality of silver tubes.

Claims (1)

Invention Formula 1, Line for spiral ribbing of pipes with tape containing a coarse loading device for the trotsel's technological process, a device for calibrating pipes, a device for knurling, a device for unwinding — l applied --- Yengy, a device for gripping and moving the pipe, receiving device and facilities 0 drive associated with the control system, characterized in that, in order to increase the convenience R of operation, the receiving device is electrically connected with the capture device and soybean movement 5 of the pipe, mounted on a guide with the possibility of reciprocating movement parallel to the axis of the fins and equipped with a mechanism for raising and lowering it, a mechanism for angular movement 0 in the plane perpendicular to the feed axis of the finned tube and the tube clamping mechanism, the device forming the tape into a spiral is kinematically connected with the device for gripping and axially displacing the pipe, the device for calibrating the pipes, the device for knurling, the device forming the tape in the coil, the device for gripping and axial movement of the pipe, and the receiving device are made with independent drives, 2, Line according to claim 1, characterized in that the mechanism for clamping the pipe is made in the form of clamping plates, rack and pinion gear and a power cylinder, while 5 clamping strips are mounted on axles with the possibility of angular rotation in a plane perpendicular to the axis of feed of the pipe, by means of the mentioned rack-and-pinion gear transmission. 0 3, Line according to claim 1, characterized in that the mechanism for the angular displacement is made in the form of a power cylinder mounted on a guide receiving device of a lever connected to one end of the cylinder of a power cylinder, and the other to 4. A line in accordance with claim 1, characterized in that the lifting and lowering mechanism is made in the form of a receiving device of the power cylinder connected to the tray, guide columns rigidly connected to the receiving tray, and adjustable stops installed with the possibility of interaction columns. 55. Line according to claim 1, characterized by in that the device for gripping and axial movement of the pipe is made in the form of a replaceable collet mounted on the guide, coaxially installed with the collet of the elastic element, a rod, through which the collet is associated with an elastic element, and the strength of interaction with the elastic element cylinder, mounted with the possibility of 5B f 57 50 Shigg 77,