公开(公告)号：US3740294A

公开(公告)日：1973-06-19

申请号：US3740294D

申请日：1970-09-03

Applicant: DYNAMIT NOBEL AG

Inventor： PRIMESSING F ,  ALFTER F ,  WIENAND M ,  JENSEN K

IPC: B29C47/00 ,  B29C53/78 ,  F16L9/16 ,  B31C13/00

CPC classification number: F16L9/16 ,  B29C47/00 ,  B29C47/0023 ,  B29C53/78

Abstract: AN APPARATUS FOR PRODUCING A WOUND PIPE OF THERMOPLASTIC SYNTHETIC RESIN, WHEREIN A PROFILED BAND OF THERMOPLASTIC, HAVING ONE EDGE PROVIDED WITH A TONGUE AND THE /OTHER EDGE THEREOF PROVIDED WITH A BEAD CONTAINING A GROOVE FOR RECEIVING SAID TONGUE, IS WOUND SPIRALLY IN THE SOFTENED CONDITION ABOUT A ROTATING MANDREL WHEREBY THE TONNGUE OF A PRECEDING WINDING LAP IS CONTTINUOUSLY RECEIVED IN THE GROOVE OF THE BEAD OF THE IMMEDIATELY SUBSEQUENT WINDING LAP, COMPRISING A ROTATABLE DRUM MEANS, AT LEAST ONE PRESSURE ROLL ASSOCIATED WITH SAID DRUM MEANS AND A MEANS, PREFERABLY A SERIES OF TAKE-OFF ROLLS, FOR REMOVING THE FINISHED PIPE FROM THE DRUM MEANS, THE PRESSURE ROLL COMPRISES THREE SECTIONAL ROLLS HAVING A CONTOUR WHICH CORRESPONDS TO THE JUNCTION POINT BETWEEN SUCCESSIVE WINDINGS OF THERMOPLASTIC, THE THREE SECTIONAL ROLLS SUBSTANTIALLY COVERING THE JUNCTION POINT. USING THIS DEVICE, A UNIFORM CONTACT PRESSURE AND, THUS, A UNIFORM AND SATISFACTORY WELDING BOND IS ONTAINED BETWEEN THE TONGUE AND GROOVE THERMOPLASTIC WINDINGS.

公开(公告)号：US3717916A

公开(公告)日：1973-02-27

申请号：US3717916D

申请日：1971-09-08

Applicant: DYNAMIT NOBEL AG

Inventor： WIENAND M ,  JENSEN K ,  PRIMESSING F ,  ALFTER F

IPC: B29C53/58 ,  B29C53/78 ,  B29C65/10 ,  B29C65/20 ,  B29C65/58 ,  F16L9/16 ,  F16L11/16 ,  B23P19/00 ,  B23P19/02

CPC classification number: F16L11/16 ,  B29C53/58 ,  B29C53/78 ,  B29C65/10 ,  B29C65/20 ,  B29C65/58 ,  B29C66/0222 ,  B29C66/0342 ,  B29C66/12421 ,  B29C66/12423 ,  B29C66/12441 ,  B29C66/12461 ,  B29C66/12469 ,  B29C66/43 ,  B29C66/4322 ,  B29C66/4329 ,  B29C66/49 ,  B29C66/73921 ,  B29C66/81423 ,  B29C66/83413 ,  F16L9/16 ,  Y10T29/53126 ,  Y10T29/53439 ,  Y10T29/53657

Abstract: A pipe is continuously formed by spirally winding a band onto the cylindrical portion of a mandrel after the band exits from a synthetic material extruding machine while still thermoelastic or after a preformed band is passed through the suitable heating device. One longitudinal edge of the band is provided with a radially outwardly widening tongue and the other longitudinal edge of the band is provided with a radially inwardly widening channel. In forming the pipe, the tongue is cooled to be rigid and inserted into the thermoelastically heated channel of an adjacent lap of the spirally wound band.

Abstract translation: 在带材从合成材料挤出机中退出之后，同时仍然是热弹性的或者在预成型带穿过合适的加热装置之后，将带卷状地卷绕到心轴的圆柱形部分上，连续地形成管。 带的一个纵向边缘设置有径向向外加宽的舌部，并且带的另一个纵向边缘设置有径向向内加宽的通道。 在形成管道时，将舌片冷却成刚性并将其插入螺旋缠绕带的相邻圈的热弹性加热通道中。