DE2406498A1 - MACHINE FOR SOCKET-LIKE WIDENING AND BEVELING OF THE PIPE ENDS OF PLASTIC PIPES - Google Patents

Description

PATENT LAWYER DR.-INC. LOTTERHOS 2406498 FRANKFURT (MAIN)

ANNASTRASSE 19 TELEPHONE: (0611) 555061
TELEGRAMS: LOMOSAPATENT
LANDESZENTRALBANK 500 07149
POSTSCHECK ACCOUNT FFM. 1667

FRANKFÜRT (MAIN),

dociete pour 1 »Equipment of Heaeaiu: en OLUialis. -tione de liatiäres Plastiques, 6y6 ^ o guincieux, S'r ^ creic: ..,

-faschine for nui'i'enarti ^ en "air conduction and abacnräjung the pipe ends of iämststoffroirren _o

The invention relates to a Llasoliine with which the muffeiiartige Aufveitung of a Röhrendes and Ab bevelling (/ Jofasung) can be dos other drilling conducted at lüunststoffrohren automatically and that are installed immediately after the extruder lcann _o

To connect Zunstotoxfroliren these are to a; n ütide sleeve-like, possibly with an annular bulge widened and on the other sur easier left filling beveled into the sleeve, it is the object of the invention to 'this both work steps automatically, in a faster way. Working cycle and with good precision to the desired length beforehand cut pipes made of thermoplastics durclizu -führungo

The invention relates to a machine for the sleeve-like widening and chamfering of the ends of thermoplastic pipes Plastics characterized by the following features:

a) Means for the step-by-step transport of the adjacent pipes cut to length from a starting position up to

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-Z-

to ACßei "es a ~ c ell ο eier .luxv / extun.j and ..osciirä ^ un ^ · in a transport direction perpendicular to the liuirracL.se;

"b) Lionel zvLv enlightenment of the one end of several superimposed uoiires in the. Yei ^ Uaif of their" transport

c) Littöl sur 3tc ^: .iiui. ;; e :: Drel-iinr of the A'öhre ur.i their ^ clise uähvenä des .Itixiieizensj

d) I-ittGl to the suuuideriOl ^ enden Blockciertmü 'of the soap liohre at the der Auxlieisun ^ n ^ clafolivendeii Auf '^ ei-fcun ^ s- Lind ii.bsciirägu.igs place of the Las chine}

e) Ilittel 2ur nuffeiicrti ^ en Aufv / eitim. ^ en one, side of the 3arbeitLinc; ssteile der Ilascliins;

f) Ilit'col to lüosclrv-.rxinz on the contrary esetsten ^ ^w eite the 3earOeit-jin.'j3stelle the LcscLin ^ j

£) means for the lateral opening of the worked ear;

ii) means for the synchronous control of the movable ropes of the Ils. s chine.

A machine according to the invention luaiin directly to one Hohrextruder be connected, as they are on the Sohra.us3toss of the extruder can be set icenno that several 3 ears at the same time during their transport Tone of the feed-in place up to the 3rd work place at the corresponding liohrteileii on the Terforiaungstenperatur be heated up «. Between these two places a kind of secondary part or sluice is formed time required for heating, which is longer than that which elapses between the arrival of two successive pipes Time and can nevertheless carry out the operations of widening and chamfering in the working cycle of the extruder «

An exemplary embodiment is provided to further explain the invention described on the basis of the drawings,

The pipes 1 and 1a show the has chine in elevation _o

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Figures 2 and 2a are Dr ^ ui ^ icliten corresponding to the? I;: ureii 1 and 1a _o

FIG. 3 is a section along a line III-III in FIG. 1 and shows the means for · heating up the pipe ends »

FIG. 4 is a section along the lines of FIG. the line IY-IY of Figure 1 and shows the route to the tube transport postage

FIG. 5 is a section along the line YY in FIG. 1 and shows the means by which the pipes are constantly rotated about their axis _{or grounded}

Pigur 6 is a ujeilecimitt along line YI-7I of the figure and shows the liittel zuh Dloc.riereri of the ears at the job site »

I ^T igur 7 is a realizes geuäss arrow YII the i? Irur 1a and shows the Ilittel for stepwise. ÜitrialD-of 'Xransportsysteinso

Figure ¹ '8 is a section along the line-YIII yili the figure 1a and shows the Ilittel on to V / nits of liohrendeiio

FIG. 9 is a view along the line IZ-IX of FIG. 1 a un'd shows the processing tools at the time of preparation

Figure 10 is an elevation view of the layout FIG. 11 shows the heating device

Figure 12 shows in vergrüGS-eri-en [... asste.b the Aoschrägungar.ittel genass 1a _o

FIG. 13 is a vertical sectional view taken in the Yor direction of FIG Figure 12o

FIG. 14 shows the device of FIG. 13 in a horizontal section

FIG. 15 is an enlarged view of the device. Figure 7 ο

Figures 1 and 1a as well as 2 and 2a show a preferred embodiment Form of a lias chine according to the hearing invention

The Lias chine has a ΰ-estell / jidas in its entirety with the

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5esuj: 3 digit 1 denotes ±; ~ Λ _Ο This carries the pipes during their passage8, their nufi'en-like appreciation and their beveling, _ <> 3ώ tr; .. gt also the ^ equipment of the various work bar ;. 3earl; eitun ™ ür; \. 3lle: io

In ZTigur 2 is in vcller. -A section of a Hohres 2 is shown in a dashed line. The ^_:: ear was cut to the desired length before itteln with known, not shown L'and ϊΙυ, Λ, of the Ausstosaes -e of the extruder is also not shown in ir :: eilrichtung on the Itohrstrasse advanced. The tube 2 is pushed forwards in the longitudinal direction and parallel to the machine, held and guided by known means

In the feed means one Vfinlcelschicne 3 is provided which receives the Hoiir 2 and ersichtlichon (left) can werdeii ice / enkt so geschv in the arrow direction in the group consisting of? 4 '/ she de.ss position 3 ^f occupies, in which the The angled rail is connected to the pipe by gravity laterally and in the direction of the machine.

In Pigur 2, the Zohr is in readiness with a 2 'dash-dotted line sur Bcir./enken der ', / inlcelschiene 5 shown «The Las chine contains a group of identical components that are strung together along the pipe to be machined »In Figures 1 and 2 is one of these components under the curly slamner 4 summarized "

These components are arranged at the level of the "/ inlcelschiene 3" and include I-üt-el for shifting the Eohre, for rotating the Itohre around its axis, for the alignment and fixing of the ear at the workplaces, sur widening and beveling and means for guiding the ear.

On the left side of the machine, fig. 1 and 2 are the heating point 5 at the top and the ^ .ufv / eitungsstelle 6 for the one pipe end is provided.

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On the right side of the device are D'igur 1α and 2a the lines 7 to the step-by-step transfer to the hohr-e and the point 8 to the ATaseilreifen and boundaries of the other tube ends provided

The lines with which the holirs are displaced perpendicular to their -. - iChao are shown in section 4 in Pifjur 4. They consist of several endless chains 9 with outwardly directed drivers 1o ₀ The chains 9 lcvufeii via the gears 11 and 12, one of which (11) is connected to the I-Iotorwheel 13 arranged parallel to the angle rail 3, while the other ( 12) movable on a rail 3, which is also parallel to the './inkcl rail 3, which is at a lower height than the ", / parts 13 - the two" .. "parts 13 and 14 are carried by the frame 1 =

Each structural element 4 has a pair of gears 11 and 12 ₉ The shafts 13 and 14 are 3nd at 3nae over the whole machine

The Yfelle 14 is located below the Viiilcelschiene 3, danit the pipes coming from this by gravity over an inclined area 15 to the! conveyor belt. The inclined surface 15 can consist of a plate or a series of profile iron exist ,, It leads from the V / inl-ielschiene 3 to the conveyor belt and leaves a space for the carriers to pass through 1o, the height of which is at least Halfτe of the maximum Hohrdiameter corresponds to »The distance between two consecutive Carrier is also according to the maximum occurring Measure the pipe diameter. The 7 / elle 13 and with it all Chains 9 are rotated step by step in the direction of the arrow (Pigur top right) = the one described below is used for this Device 7 ο

To the pipes, as soon as they are on the beds 9, constantly to rotate its axis, several groups of endless (drive belts 16 are provided according to Figure 5, which over several pairs

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from?, io ::: eiiaci-3lcei. 17 and 13 by renc.v. The gears 11 and 12 are running in the same direction and are also driven by the '.,' eilon 15 and 14 are the ^ jatriübG \ .ellc 2o sits, the latter runs jiardlel su den -.- ellcü 13) and 14 and Ιζτ in the lower LJeIl äea machine frameu 1 nontierto the liieiuenjcliüiben 1? and 1S run freely on their barks 15 and 14, while the Velio 2o is constantly driven by the electric motor 2o · (FIG. 4) so that the drive belts 16 run in the seal of the arrow in FIG. 5 (top left). The I-lieneiisclieiben 17, 18 and 1? are also slightly axially displaced from one another, the ropes of the trawlers 16 do not run vertically down the lines 13, 14 and 2o 'Aschine side of the i' ^ gur 1 and 2 res tos a s in such a way that they are constantly hit their rushed and s in contact with a JjiscUla & - and Jv.hrun ^ plate 21 (Figures 1a, 2a), the is firmly arranged on the right side of the Lascliin, perpendicular to the "./'eile 13 and 14"

They AnscLlag- and Ptihrungsi ^ latte 21 is not disposed perpendicular to the direction indicated by Ereisen in Figure 5 Vegstrecke the tubes "Each component of the machine 4 comprises three groups of Hiecienscheiben 17, 18 and 19 'The waves are 2o ünde to each other jSnde coupled in the same "Jelse as the './eilen 13 and Ho

hold the pipes at the workplaces for expansion and bevel, sections of '/ inkelaoliienen 22 carried by the frame 1 are provided along the machine (FIGS. 2a, 5 and 6) “These angle rails are parallel to the The lines 13, 14 and 20 are in line one behind the other at the same height as the line 14, but on the other side of the machine like the feed angle rail 3 °

The T / inkelschiene 22- are also in the axis of the expansion

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device 6 uiic of the Greensunjs- and ^ b s cLr L '. junjsvori ^ L circling

us are provided uit-cel to the Aohre in Vinl-relschienen to block "Hiersu serve a ^ jizzIlL of about ^Li:. .n": e i-.Iaschine distributed Arnen 23 (Sl ^ ur 'b) , which are stored on the \ felle 14. The., r: .ie 23 have at iiiruii free form a cheek 24 around the handle in the processing position ο further are the ^ rr : e 23 connected to one another by a cross link 25, llii-e '3ev / egung takes place via a lever 26 corresponding to the arms (j ^ igur 5) »or it is actuated by the piston rod of a hydraulic o & ev piieunatiüclien yorriclitung 27 o ü) s may i ^r ir each device 4, a r'aar of actuated by the Vorri.ahtunc 27 _- rr.en. 23 may be provided.

A star wheel 28 (JPi ^ m ¹ 4) is provided to move the horn around after widening and chamfering; is "Dac star wheel 28 has at its circumference 7-füri.iije 3o cutouts for receiving the v / egsuführenden J.olire.o Once a 1-iolir rtilit the" iinkelschienen 22, lie there ^ t 2l ^e i ^c i l ^aze ^ iC i «a" V-shaped cutout 3o of the dtem wheel 28 "Every component of the machine is verselieiio with a star wheel 28

Each star wheel 28 is provided with a gear 31 vex'bundeno A chain 32 liiuft this gear and v / ith the gear driven, the hit the gear wheel 12 is connected so that the star wheel in the direction shown in Fi ₁ jur 4 below arrow is rotated o

Furthermore, curved guide parts 3oc (FIG. 4) are on Ivlaschinengesiell arranged at the level of the bearing supporting the shaft 13. These guide the 2nd ears when leaving the chain 9 so that they fall on the "7inkelschienen 22" = these parts of the pipe 3oc vertical bars 3oa are assigned. These are held of a longitudinal beam 3ob, the län / .: s and above the Has chine runs over the star wheels 28.,

With reference to Figures 3 and 11, the heating

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place 5 for the pipe ends. The heating point has two parallel ramps 35, each of which has two rows of heating elements 36 for infrared heating of the pipe ends passing between the two ramps at equal distances. In FIG. 2, ^{the pipes are shown with 2 lf} in the heating position while they are on their way.

The ramps 35 have the same angle of inclination as the • chains 9 ° The distance between the two ramps 35 can be used to Adjustment to different pipe diameters or different Heating conditions can be changed. Two parallel rods 37 'are used for this purpose, one of which is attached to the lower ramp Block 38 are fixed and on which the block 39 connected to the upper ramp slides in corresponding bores can be moved «The distance between the two ramps is set with the handwheel 4o set, the threaded rod 41 in blook 39 has a mating thread. The end of the threaded rod 41 eats in a corresponding Locli of block 38 freely rotatable "

The unit of the two ramps 35 can be in the axial direction of the Pipes by means of the parallel rods 42 which carry the ramps and on which the block 38 slidably feeds. will be presented. The rods 42 are anchored in a "block 43" on a Sreheapfen attached to the machine frame 1 is pivotably mounted. The hand wheel 45 operates a threaded rod 46, which has its mating thread on blook 38 and whose end is rotatable in block 43 in such a way that the distance iwieohen blocks 38 and 43 can be changed »

The attachment of the block 43 on the pivot pin 44 allows the ramp unit to be oriented by rotating in a plane parallel to the plane given by the Aohden of the tube I in the first position ^2f (terso displacement on the chains 9). The ramps 35 extend over aioh th divided straight part of the transport path of the chains 9 ο

The widening Steep is "^ estellt in detail in Figure 1o is It includes a Expansionsdcrii 5o z _o example of the, -. · -

'COPY

v / he is described in the German patent application P 23 45 9o'l ₀ o (French patent application 72 <> 5258o) or in the French patent application 73oo39i6 »

The Bxpansionsdorii 5o is from the locking partition plate held. The latter has a breakthrough for the passage of the Lome. It is actuated by the piston rod 53 a hydraulic or pneumatic device 54 ο attached to the machine frame 1 ″

The expansion mandrel 5o has means 55 with which, in addition to the sleeve 57, it also has an annular bulge 56 at the end of the pipe can train. However, these means 55 are not a condition for carrying out the invention. It can also be a thorn be used, which forms a smooth-walled expansion.

The means 7 for step-by-step local switching of the chains 9 of the transport device are shown in detail in FIGS. 7 "and 15. They" consist of a device for the step-by-step rotation of the shaft 13 in each case in a certain angular step Machine frame arranged plate 6o is provided, which has an opening for the shaft 13.

The plate 6o carries two bearings 61 in which the vertical rod 62 is freely displaceable. It is actuated by the piston rod 63 of a hydraulic or pneumatic piston cylinder 64- arranged on the lower part of the plate 6o,

The rod 62 carries an upper finger 65> the angled tip is directed downward, and a lower finger 66 with an upwardly directed top, and an intermediate ratchet 67 · The fingers 65 and 66 are fixed to the rod 62 while the pawl 67 about the axis »is pivotable . Between the pawl 67 and the finger 66 a Bückholfeder 69 is provided =, The pawl 67 has a horizontal stop spring 7o, an inclined Eaape 71 and a projection 72, which under the action of

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.Return spring 69 on finger 66 engages. The lower finger 66 has a vertical stop surface 73 · The fingers 65 »66 and the The pawl 67 work together with five cylindrical connecting webs, the two parallel and coaxial on the ¥ elle Connect the attached flange rings 75 to one another. The connecting bridges 74- are equally angularly spaced near the Distributed around the outer circumference of the flange rings 75.

The device also includes a pawl 76 engaging the connecting webs and rotating in a clockwise direction prevented. The pawl 76 has an inclined Hamp / e 77 u ^ d is pivotably mounted on the part 78 connected to the plate 6o. By between the pawl 76 and the plate arranged return spring 79, the pawl is brought into the position shown in FIG

The processing point 8 for beveling and limiting is in Details are shown in FIGS. 8, 9 and 12, 1j, 14.

According to FIGS. 1a and 2a, this processing point is located at the right end of the machine. But it can aucii depending on its length of the pipes to be machined between two components 4 must be switched on.

The processing point is arranged on a machine frame 1 and adjustable in height by means of threaded rods 81 Carrier 8ffi mounted. There are also such saws between adjacent components 4 and can with the same processing point ^ as shown in Fig.12, be equipped.

On the carrier 8o is the processing point with a compilation of limit or stop positions 82 ac the boring. The stop points include ^ in particular a vertical plate 83, which acts as a limit stop or abutment is used for the expansion and is vertically displaceable by means of the hydraulic or pneumatic piston cylinder 84.

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The plate 83 (FIG. 14) has both vertical flanks on ilireii " the tenons 85- These carry rollers 86 which are in vertical grooves 87 run. The grooves 87 are located in two vertical, fixed ones Stands 88. Simultaneously with the plate 83, the piston device 84 moves a web 84a, which at its lower Part has a stop 89, the stop 89 works together with two contacts 9o arranged on the carrier 8o for the limitation the movement.

The vertical, fixed plate 91 is on the stands 88 attached, and on this the horizontal, parallel rods 92 are attached, the other ends of which on the frame of the beveling device or are anchored on the carrier 8o.

The connection between the piston rod of the piston cylinder and the plate 83 takes place via a part 84 b, which is on the upper part the plate 83 is fixed and is vertically displaceable in a slot 84 c in the plate 91 (Figure 8).

Furthermore, the plate 91 has a central recess 91a for the The milling cutter passes through the beveling device in the direction of the pipe end.

A slide 93 is displaceable on the rods 92. This carries a conventional beveling tool 94- »e.g. in the form of a inner truncated cone with one or more milling knives 95 for the outer bevel 96 of the pipe 2 '' '.

The carriage 93 also carries the electric motor 97 »of the Drives cutter via a reduction gear 98.

The slide 93 is displaced by means of a hydraulic or pneumatic piston cylinder 99 which is attached to the carrier and whose piston rod 1oo provides a system of articulated rods which is arranged between the slide 93 and the carrier 8o. The starting and stopping of the tool 94 is controlled by demarcation contacts (not shown).

The various organs for synchronous control as well as for interlinking and control of the various movements of the machine parts are not shown and described as they are general are known and are not the subject of the invention.

The machine works as follows:

The tubes 2 ¹ cut to length are continuously advanced end to end of the conveyor line according to the output of the extruder until they assume the position on the angle rail 3 indicated in FIGS. 2 and 2a. At this point in time, a conventional display and control device effects the lateral pivoting of the angle rail 3j, directed towards the machine, which then assumes the position ^{indicated by 3 1 in FIG.} The fiohr rolls down over the inclined plane 15 and is taken onto the conveyor chains 9 by the drivers 1o. Immediately after the unrolling of a pipe, the angle rail 3 goes back to its starting position in order to be able to accommodate the next fiohr.

The spaces between the individual drivers 1o are shown on the upper sides of the chains 9 as shown in FIG. 4 by the fiohren busy. All ears (2 * in Fig. 2) are by means of the drive belts in contact with them 16 constantly rotated about its axis, as can be seen from Fig. 4-.

Due to the inclination of the drive belts in relation to the drilling axis the tubes are constantly pushed against the plate 21 during rotation and thus aligned in exact alignment, so that the the other end of the pipe can be heated evenly over a certain length and over its entire circumference.

The heating of the ears can be regulated within wide limits by turning the heating elements 36 of the lamps 35 as a whole or partially in operation and also in ^ by the distances changed from the drilling to the heating source with the handwheel 4o ..

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For setting the length of the pipe part to be heated The handwheel 45 is used. Furthermore, the inclination of the longitudinal axis of the ramp in relation to the drilling axis can be changed (pivoting device 44).

So soon a new pipe coming from the angle rail 3 from the chains 9 are to be included, a tube leaves the chains. This will reduce the work cycle of the machine to the of the extruder.

The length of the straight path of the pipes on the chains is dimensioned in such a way that, even in the worst case, the pipe ends are sufficiently heated for the expansion.

The device with the chains 9 ″ and drivers 1o thus represents a type of collection point or lock, through which it is possible to ensure sufficient heating at a time, which is equal to η times the time between placing two consecutive pipes on the angle rail 3 is. The number η is determined from the number of pipes that are being heated.

The chains 9 move forward by one step after a new tube has been brought into position by pivoting the angle rail 3 is. A display device (not shown) controls the work cycle of the machine, including the step-by-step rotary movement belongs to shaft 13 (Fig. 15). The device for propulsion the incremental rotation works as follows:

In Fig. 15, the starting position is shown in full lines. In this position there is a rotation of the shaft 19 in both directions through the pawl 76 and through the stop surface of the finger 66 prevented.

The device is controlled by the reciprocating motion of the piston rod 63 of the piston cylinder 64. When retracting of rod 62 (downward movement) fingers 65 and 66 come in

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the position shown in dash-dotted lines. In the course of this movement, the pawl 67 is pivoted clockwise. This is done by sliding the Bampe ^a 71 uf the immediately underlying connecting web 74 ·· The stop surface 7o has then assumed the position below the lower stationary connecting bar by the Kickholfedern 69th

The finger 65 fergänzt the task of the finger 66 during the Displacement of the rod 62, i.e. blocking of the shaft 13 in both directions of rotation in interaction with the pawl 76

While the piston rod 63 is being pushed out (upward movement of the rod 62), the finger 65 releases the connecting web 74-, which until then prevents the pawl 67 from pushing the connecting web 74- located in front of it upwards. This leads to the rotation of the flange rings 75 vuaä. the wave 13

During this movement, the finger 66 goes up and lies between two connecting webs, and the next connecting web is detected and held by the pawl 76 after it has pivoted.

After the flange rings or the shaft 13 in the illustrated Embodiment completed a fifth of a full turn is again the one drawn in full lines in Fig. 15 Position reached.

During the rotation of the shaft 13, an Eohr falls on the angle rails 22. Here, the guides 3oc and the rods 3oa Guide channels which open into the V-shaped cutouts 3o of the spur gear 28. These guide passages prevent the pipes at the ends of the driver 1o and the arms 23 abut and thereby get a wrong trajectory.

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At the chile s s end "is the pipe in the 3? Ig. 2, 2a, 4 and 6 with 2 "'marked position and is of the jaws 24 recorded. This is done through the action of the piston-cylinder 27 over the arms 23 and the traverses 25

The pipe 2 '' 'is in the working position for the expansion on his one and the subsequent bevel at its other end.

The expansion takes place in a known manner and by known means. The action of the piston cylinder 54 becomes the expansion mandrel 5o introduced into the heated pipe end, which it expands to form a socket 57 and by means of extendable means an annular bulge 56 provides. Then will the expansion mandrel is retracted into its initial position shown in dash-dotted lines, making the finished tube easy can be led away.

During the expansion process, the pipe is held in place by the jaws 24 and is due to the action of the Expansion mandrel 5o with its one end on the plate 83. The latter is in its upper position by the piston cylinder 84 brought. The end positions of the plate 83 were indicated by the contacts 9o. When the expansion is complete, the plate becomes 83 lowered and the lower contact 9o sets the bevel in progress.

The beveling operation is also carried out in a known manner. The tube is here in the position shown in phantom in FIGS. 1 a, 2 a, 8 and 12.

To move the carriage 93 to the left of the 3? Ig. 12 the piston cylinder 99 is actuated. The maximum • bevel of the tool 94, the linkage Ιοί and part of the carriage 99 is shown in phantom. To drive the tool, the electric motor 97 is provided, the is controlled automatically.

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In the course of the displacement of the tool 94, it passes through the recess 91a of the plate 91 to come into contact ^{with the end of the tube 2 MI.}

After the bevel has been completed and the stuck Jaw 24- is done by turning the shaft 15 again 1/5 of a turn away. During this rotary movement, the star wheels 28 are rotated clockwise by 1/5 in the same way. The pipe is then passed on to a removal ramp, a trolley or the like.

The same takes place with every pivoting of the angle rail 5 A corresponding llocation of the chains 9, i.e. a pick-up a new pipe and the ejection of a pipe in the direction of the processing points for the expansion and beveling. All processes take place automatically and cyclically in the working cycle of the extruder.

The synchronous control of the various piston cylinders is advantageously effected by cascade assembly, with the end of the activity of one piston cylinder, possibly with time intervals, triggering the start of work of another piston cylinder.

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Claims (12)

Claims * / *!> » (J_) yMachine for the sleeve-like widening and chamfering of the Ends of pipes made of thermoplastics, calculated by the following features: a) Means for the step-by-step transport of the adjacent pipes cut to length from an initial position Ms to the work site of the widening and beveling in a transport direction running perpendicular to the pipe axis; b) Means for heating each end of several adjacent ones Pipes in the course of their transport; c) Means for constant rotation of the tubes around their axis during heating} d) means for sequential blocking of each Pipes on the expansion and subsequent heating Machine bevel point; e) Means for sleeve-like upgrading on one side of the Processing point of the machine; f) means for beveling on the opposite side of the machining point of the machine; g) means for removing the machined pipes from the side; h) Means for the synchronous control of the moving parts of the machine. 2) Machine according to claim 1, characterized in that the Means (a) for the step-by-step transport of the pipes from the starting position to the processing point of several endless Chains (9) are made with outwardly directed drivers (1o), each chain (9) running over two gear wheels (11, 12) whose Waves (13 »14-) horizontal and parallel, but in different ways Are arranged height and a shaft is connected to a device for the stepwise drive. 3) Machine according to claim 2, characterized by means (7) for the gradual abrasion of the chain shafts, consisting of a 409836/0767 on the chain shaft (13) seated flange ring (75) with in Vbrspringen distributed at equal angular intervals on its circumference (74-) »one cooperating with these projections one after the other Locking pawl (76), an actuating device in the form of a perpendicular to the shaft (13) between ziiei extreme positions by means of a pneumatic or hydraulic piston cylinder (64) displaceable rod (62) with an upper (55) and a lower one (66), engaging the projections (7 ^ 0) Locking finger and a pawl (67) attached to the rod (62), each of which is used for incremental rotary movement engages on one of the projections (7 ^). 4) Machine according to claim 1 or 2, characterized by a Drilling feed device, consisting of an angle rail (3) arranged parallel to the chain shafts (13, 14) »which in Sighting of the nearest chain shaft (14) around its longitudinal axis is pivotable and one between the pivoted longitudinal side of the Winkelachiene and the passage space of the chain driver (io) arranged inclined plane (15) 5) Machine according to claim 1 to 4, characterized by means (b) for heating one end of the drill, consisting of two accordingly the drilling position on the conveyor chains inclined heating ramps (35) »one of which is above and the other below the Boring ends, arranged on the heating ramps, individually switchable heating elements for infrared heating and Püttel to adjust the distance between the two lamps and the Length of the drilling part to be heated " 6) Machine according to claim 1 to 5, characterized by means (c) for rotating the drill during heating, consisting of several drive belts running over the drill hole (16), which are mounted on two pulleys on the two chain shafts (13, 14) (17, 18) of the same diameter as the chain sprockets (11, 12) and a third below the conveyor chains The secondary drive belt pulley (19) is running. 409836/0767 2406493 7) machine according to claim 6, characterized in that the The upper path of the drive belt is not completely perpendicular to the pipe axes and on a corresponding side of the conveyor direction a stop (21) is provided for aligning the pipe ends in alignment. 8) Machine according to claim 1 "to 7» characterized by means (d) to block the pipes at the widening and chamfering point, "Consists of ötelle parallel to the axis of the machining and below the upper Veil (13) of the conveyor arranged angle rails (22) and clamping arms (23) with Clamping jaws (24-). 9) Machine according to claim 1 to 8, characterized by means for sleeve-like expansion, consisting of an expansion rod (5o) which can be pushed forward and backward on a slide and is actuated by means of a hydraulic or pneumatic piston cylinder. 10) Machine according to claim 1 to 9 »characterized by means (f) for chamfering one end of the drill, consisting of a slide (93) carrying the chamfering tool (milling cutter 94 ·) » in the direction of the pipe axis by means of a hydraulic or pneumatic piston cylinder (99) via an articulated rod (Io1) is movable. 11) Machine according to claim 1 to 1o, characterized by means (g) for the removal of the finished tubes, consisting of a plurality of wheels (28) have for receiving the tubes on its periphery approximately V-shaped cut-outs and in the same operation clock as the gears the conveyor are driven. 12) Machine according to claim 1 to 1t, characterized in that guide devices (3oc, 3oa) are provided between the conveyor device and the angle rails (22) holding the tubes or the wheels (28) leading away. 409836/0767 Blank page