SU1321603A1 - Arrangement for welding round billets - Google Patents

Abstract

The invention relates to the welding of plastics, in particular to devices for socket-butt welding of thermoplastic tubular blanks. The purpose of the invention is to increase productivity by automating auxiliary operations and quality. For this installation, the installation is equipped with a mechanism for setting the amount of departure and removal of the product, made in the form of a pivoting lever 24, one end of which is kinematically connected by a system of levers 25 and 26 with the upper part 5 of the cage, and on the axis 27 of the other end of the lever 24, the limiting fff is set (I

Description

A reader is inserted and ejected products in the form of a rod 28 with a bevel at the free end. The rod 28 is mounted for movement in the direction of the pipe out with the help of washers mounted on its axis, which makes it possible to vary the amount of pipe ejected. The installation is also equipped with stops 22 for limiting the movement of the holders with billet for heating, mounted in threaded

This invention relates to the butt-fusion welding of thermoplastic billets.

The purpose of the invention is to increase productivity by automating auxiliary operations and quality.

Figure 1 shows a schematic diagram of a machine for welding billets; figure 2 is a view of And figure 1; on fig.Z - section bb in figure 2; 4 shows the machine assembly at the moment of ejection of the welded billet from the clamps; on fig.Z - section bb of figure 4.

The installation comprises a frame with horizontal guides 2 mounted on opposite ends of the guides with the possibility of moving the base 3 along them, clamps for billets, made in the form of detachable holders, the lower parts 4 of which are fixed by means of a ribbon tail on the base 3, and the upper parts 5 clips are installed with the possibility of rotation around the axis 6

The top of the clip finishes - with the lever 7, in the groove of which the finger of the plug 8 is placed, mounted on the rod 9 of the pneumatic cylinder 10.

One of the clips serves to clamp the pipe, and the other to clamp the pipe with a socket.

The lower parts of the clips with the bases are connected by means of levers 11 cf by rods 12 pneumatic cylinders 13 for feeding pipe billets.

The installation also includes a heater 14 placed between the clamps. Ft. Located on the dovetail type guide 15, installed with the holes of the guide 15 of the load pad 14 with the ability to work with the bases 3 of the lower parts 4 of the yoke, and the stops 23 to limit movement pipe blanks for welding, mounted in the threaded holes of the bases 3 of the lower parts of the 4 holders of pipes with a bell and pipes with the possibility of interaction with the opposite base of each of the lower parts of the clips. 2z.p. f-ly, 5 ill.

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five

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on the base 16 with the possibility of reciprocating movement perpendicular to the movement of welded parts for heating and welding.

The heating element 14 on one side has a protrusion 17, and on the other a recess 18 for heating, respectively, the bell of the pipe and the second pipe.

The guide through the lever 19 is connected to the rod 20 of the pneumatic cylinder 21 for moving the heating element.

The installation is also provided with stops 22 for limiting the movement of the billet for heating, mounted in the threaded holes of the heater guide 15 with the ability to cooperate with the bases 3. welding, mounted in the threaded holes of the bases 3 of the lower parts of the 4 clips with the possibility of interaction with the opposite base of each of the lower parts of the clips.

In addition, the installation is also equipped with a mechanism for setting the size and removal of products after welding, executed as a swivel (lever 24, one end of which is kinematically connected by means of a system of levers 25 and 26 to the upper part 5 of the cage, and on axis 27 of the other the end of the lever 24 is installed the limitation of departure in the form of a rod 23 with a bevel 29 on the free end, and the rod 28 is installed with a possible313

movement in the direction of the pipe is released using washers mounted on its axis.

To enable movement and control of the movement of the sleeves with billets for heating and welding, the installation is equipped with sensors of the initial position 30 and 34, the heating position 31 and 35, the welding position 32 | 36, the clamped position of the tube bores 33 and 37, placed on the path of movement of the clips.

To move the heating element 14, the installation is equipped with a date.

working position 38 and the outcome-15 and 14 and the pipe to the contact

39.

The installation works as follows.

Before the start of the operation, the elements of the installation are located in the following outcomes - 20 by the interaction of the stops 22 with the base positions.

The pipe holder with the socket is in the leftmost position and is monitored by sensor 30, and the upper part 5 of the holder is opened and monitored by sensor 33

The pipe yoke is in the extreme right position and is monitored by sensor 34, while the upper part 5 of the yoke is opened and monitored by sensor 37, and the limiting ejector 28 is in the extreme upper position

Heating element 14 together

with the movable guide 15, 35 are located 22 from the weld zone to the original in the retracted position and controlled, which is monitored by the sensor 39. sensor 39, which gives a signal to the sensor. After installing the pipe billet with pneumatic cylinders 13, it pushes the stationary bottom part 4

40

clip, include a pneumatic cylinder 10, which with the help of a lever 7 with a groove rotates the upper part of the holder 5 around the axis 6, fixing the position of the pipe with a socket in the holder.

The lower 4 and upper 5 parts of the sleeves 45 are made interchangeable depending on the type and geometrical dimensions of the shaped part and are mounted on the base 3 with the help of dovetail, 50

clamped and heated tubular billets for socket-butt welding. The end positions of the pipe with the socket and the pipes at the time of welding are limited by stops 23, which interact with the base 16 of the heating element and are monitored by sensors 32 and 36, which turn on a time relay tuned to the processing time after welding under load.

At the end of the process, the time relay issues a signal to trigger the pneumatic cylinder 10 for clamping the pipe with a socket, which opens

Having installed the pipe into the stationary lower part of the cage 4 and resting its end into the stop 28, it is discharged using the pneumatic cylinder 10 through the lever 7 with a groove turn the upper holder 5, the upper part 5 of the holder and the pneumatic clamping the pipe. At the same time, the lever 26 of the pipe clamp lindra 10, which from levers 25 and 24 and the axis 27 lowers the ejector 28 to its lowest position.

kryvaet upper part 5 clips.

While the lever 26 drives the lever 25 with a groove and the lever 24.

With clamped positions of the pipe with a bell and the pipe, sensors 33 and 37 deliver a command signal to ycTarfoB-ku of the heating element 14 in a position coaxial with the pipe clamps with the socket and pipe by moving the guide 15 on the base 16 by means of the lever 19 and the rod 20 of the pneumatic motsilnidra 21.

The sensor 38 issues a command signal to move the bases 3 with the clamps of the pipe with the bell and the pipe until the pipe comes into contact with the socket with the protrusion 17 of the heating element deepening 18 of the heating element.

During heating, the movement of the pipe with the socket and the pipe is limited

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There are 3 billets clamps.

The heating time of the pipe with the socket and the pipe is monitored by a time relay tuned to the required technological heating time and activated by sensors 31 and 35.

At the end of the heating process, the time relay issues a command — a signal to retract the bases 3 with clamps of tubular billets to the initial position controlled by sensors 30 and 34, after which the pneumatic cylinder 21 operates, the output of the heating element 14, the movable guide 15 with pneumatic cylinders 13, feed -

clamped and heated tubular billets for socket-butt welding. The end positions of the pipe with the socket and the pipes at the time of welding are limited by stops 23, which interact with the base 16 of the heating element and are monitored by sensors 32 and 36, which turn on a time relay tuned to the processing time after welding under load.

At the end of the process, the time relay issues a signal to trigger the pneumatic cylinder 10 for clamping the pipe with a socket, which opens

the upper part 5 of the holder and the pneumatic cylinder of the clamp of the pipe 10, which is from

the upper part 5 of the holder and the pneumatic cylinder of the clamp of the pipe 10, which is from

kryvaet upper part 5 clips.

While the lever 26 drives the lever 25 with a groove and the lever 24.

and through the axis 27 rotates the rod 28 of the restrictor E) from the lowermost position to the uppermost position.

The radius 28 of the overhang, with its end, made with a bevel 29, with welded tubular billet, removes it from the fixed lower parts of the 4 pipe clamps with a socket and a pipe.

When the upper parts of the 5 clips are opened, the sensors 33 and 37 give a signal to the pneumatic cylinders 13 to retract the bases 3 with the clamps of the pipe with a socket and the pipe to its original position.

This completes the cycle.

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specifying the amount of overhang of the pipe in the clamps and removal of products. After welding, it is equipped with a mechanism for setting the amount of overhang and removal of the product, 5 made in the form of a pivoting lever, one end of which is kinematically connected by means of a system of levers to the upper part of the cage, and the other end of the lever is provided an erector for ejection and ejection, limited, made in the form of a rod with a bevel at the free end, installed perpendicular to the direction of ejection of the workpiece, with the possibility of 5 adjusting its position in the direction eta blanks.

2. Installation under item 1, about tl and the formula of the invention

1 hour Installation for welding billet of thermoplastics, containing a frame with horizontal guides mounted on them with the possibility of moving the base, clamps for billets, made in the form of detachable holes, the lower part of which is mounted on the bases, and the upper part is connected to the mechanism their rotation, mechanisms of relative movement of the bases, heater, located on the guide, installed with the possibility of reciprocating movement of the perpendicular movement of the welded parts her and, stops to limit the movement of parts for heating and welding, so that, in order to increase productivity by automating

in order to improve the quality of welding and simplify

neither the design, the stops for limiting the movement of the billet for heating are mounted on the heater guide with the possibility of interacting with the bases of the lower parts of the clips, and the stops for limiting the movement of the pipe blanks for welding are mounted at the bases of the lower parts of the cages with the possibility of interacting with the opposite base of each from the bottom of the clips. I

3. Installation according to claims 1 and 2, which reveals that the stops for limiting the tube blanks

for heating and stops to limit the movement of pipes for welding, the workpieces are adjustable in length.

Type A

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Compiled by Bredov

Editor. G. Volkova Tehred L.OliynykKorrektor V. But ha

Order 2708/11 Circulation 564 Subscription

VNIIPI State Committee of the USSR on Inventions and Discoveries 113035, Moscow. W - 35, Raushska nab., Do4 / 5

Production and printing company; g, Uzhgorod, st. Project; four

Claims (3)

Claim 1. Installation for welding tube blanks from thermoplastics, containing a frame with horizontal guides mounted on them with the ability to move the base, clamps for tube blanks, made in the form of detachable o-boom, the lower part of which is installed on the bases, and the upper is connected to their mechanism rotation, mechanisms of relative movement of the bases, a heater located on a guide mounted with the possibility of reciprocating movement perpendicular to the movement of the welded parts and. stops for restricting the movement of parts for heating and welding, characterized in that, in order to increase productivity by automating the task of the magnitude of the pipe in clamps and removing products after welding, it is equipped with a mechanism for specifying the magnitude of the projection and removal of the product, 5 made in the form of a rotary a lever, one end of which is kinematically connected by means of a system of levers with the upper part of the cage, and the other end of the lever is equipped with a release and ejection restrictor made in the form of a rod with a bevel to free bottom end mounted perpendicularly to the direction of emission of the workpiece 15 with the possibility of adjusting its position in the 'vypeta preform direction. 2. Installation according to claim 1, characterized in that, in order to improve the quality of welding and simplify 20 design, stops for restricting the movement of pipe billets for heating are mounted on the heater guide c. the possibility of interaction with the bases of the lower parts of the clips, and the stops for restricting the movement of pipe billets for welding are mounted on the bases of the lower parts of the clips with the possibility of interaction with the opposite base of each of the lower parts of the clips. 3. Installation according to claims 1 and 2, about t and relying on the fact that the stops 35 to limit the tube blanks for heating and stops to limit the movement of the tube blanks for welding made adjustable in length "