公开(公告)号：US4911633A

公开(公告)日：1990-03-27

申请号：US232137

申请日：1988-08-15

申请人： Gordon A. Comfort

发明人： Gordon A. Comfort

IPC分类号： B29C33/26 ,  B29C33/28 ,  B29C33/34 ,  B29C47/12 ,  B29C47/34 ,  B29C49/00 ,  B29C49/34

CPC分类号： B29C47/126 ,  B29C33/28 ,  B29C33/34 ,  B29C47/34 ,  B29C49/0021 ,  B29C49/34 ,  B29C33/26 ,  B29C47/0023

摘要： The present invention is directed to the manufacture of plastic tubing exemplified by corrugated plastic tile and parts related thereto, in which molds for shaping an extrudable plastic material are caused to shuttle linearly forwardly and rearwardly with respect to an extruding source of said plastic material. Sequentially related to linear mold movement is opening and closing mold action, which is correlated to the discharge of plastic material from the extruding source thereof. Provision is also made herein during the course of linear mold movement for parking one or more predetermined molds at a location spaced from the extruding source.

摘要翻译： 本发明涉及以波纹塑料瓦及其相关部件为例的塑料管的制造，其中用于使可挤出塑料材料成型的模具相对于所述塑料材料的挤压源线性向前和向后穿梭。 与线性模具运动有关的是开模和关闭模具作用，这与塑料材料从其挤压源的排放相关。 本文还在线性模具移动过程中提供了将一个或多个预定模具停放在与挤压源隔开的位置处。

公开(公告)号：US4082492A

公开(公告)日：1978-04-04

申请号：US693120

申请日：1976-06-03

申请人： Manfred Kurreck

发明人： Manfred Kurreck

IPC分类号： B29C65/00 ,  B29B11/10 ,  B29C49/00 ,  B29C49/04 ,  B29C49/32 ,  B29C49/34 ,  B29C49/42 ,  B29C49/48 ,  B29C49/56 ,  B29C1/00 ,  B29C1/16

CPC分类号： B29C49/34

摘要： In a molding process wherein a pair of mold halves pivoted on respective axes flanking a mold-closing plane are closed together scissor-fashion on an extrusion issuing continuously down in the vertical mold-closing plane, each of the mold halves is displaced during closing of the mold halves away from its respective pivot axis. Such displacement away from the axis is effected by means of a cam arrangement during the last stages of closing in order to insure that the mold cavities remain perfectly aligned with the extrusions being closed in them.

公开(公告)号：US3751542A

公开(公告)日：1973-08-07

申请号：US3751542D

申请日：1971-11-09

申请人： HERCULES INC

发明人： HALL J

IPC分类号： B29C49/04 ,  B29C49/14 ,  B29C49/34 ,  B29C17/07

CPC分类号： B29C49/14 ,  B29C49/04 ,  B29C49/34

摘要： THE TIME LAPSE BETWEEN INITIATION OF ORIENTATION OF A CONTINUOUS PLASTIC TUBING AND BLOWING A CONTAINER THEREFROM IN A CONTINUOUS PROCESS FOR MAKING BLOW MOLDED CONTAINERS IS REDUCED BY HAVING ONE MOLD MOVING AWAY FROM AN OVEN TO DRAW A GIVEN LENGTH OF TUBING FROM THE OVEN AND THEN CLAMPING THE TUBING AT A LOCATION ADJACENT THE OVEN AND LETTING CONTINUED MOVEMENT OF THE MOLD

AWAY FROM THE OVEN ORIENT THE GIVEN LENGTH OF TUBING. ANOTHER MOLD CLOSES ON THE ORIENTED LENGTH OF TUBING AND A CONTAINER IS FORMED THEREIN.

公开(公告)号：US3699199A

公开(公告)日：1972-10-17

申请号：US3699199D

申请日：1970-12-30

申请人： HERCULES INC

发明人： MACDUFF RICHARD

IPC分类号： B29C49/04 ,  B29C49/34 ,  B29C49/70 ,  B29C17/07 ,  B29C7/00

CPC分类号： B29C49/70 ,  B29C49/04 ,  B29C49/34

摘要： In a continuous blow molding operation, mold release of the newly formed container is facilitated by providing a conveyor adjacent to the point where the mold opens. The newly formed container is connected at one end by waste material to a previously formed container that is in the conveyor and is connected at the other end to material in a closed mold behind the mold that is opening. The conveyor haul off speed and the speed of the molds are at a relative rate which maintains a certain tension in the waste material between the previously formed container and the newly formed container and there is also tension in the material between the two molds. This tension facilitates mold release of the newly formed container upon opening of the mold. The speed of the molds is greater than the haul off speed of the conveyor by a rate which is substantially equal to the rate of reduction of length in the material between the previously formed container and the closed mold to prevent any deformity in the containers due to an excess of tension.

摘要翻译： 在连续吹塑操作中，通过在模具打开的位置附近设置输送机来促进新形成的容器的脱模。 新形成的容器的一端由废料连接到在输送机中的预先形成的容器中，并且在另一端与被打开的模具后面的封闭模具中的材料连接。 传送带牵引速度和模具速度处于相对速度，其在先前形成的容器和新形成的容器之间的废料中保持一定的张力，并且在两个模具之间的材料中也存在张力。 这种张力有助于在打开模具时新形成的容器的脱模。 模具的速度大于输送机的牵引速度，其速率基本上等于在先前形成的容器和闭合的模具之间的材料中的长度减小速率，以防止容器中的任何变形，因为 过度紧张。

公开(公告)号：US4611981A

公开(公告)日：1986-09-16

申请号：US769901

申请日：1985-08-27

申请人： Larry W. English

发明人： Larry W. English

IPC分类号： B29C49/14 ,  B29C49/34

CPC分类号： B29C49/34 ,  B29C49/14

摘要： Disclosed is an improved hand-over-hand blow molding machine and the method for forming a chain of hollow, shaped article bodies of biaxially oriented, normally highly crystalline thermoplastic material from a tube of said material in substantially unoriented condition, but at an orientation temperature. The machine and method are characterized by an additional blow mold in tandem with one of the blow molds of the prior art two mold machine and method. The machine is operated so that each longitudinally stretched portion of the tube on which the mold pieces of each blow mold closes has substantially the same extent of longitudinal stretch or elongation. This is done by arresting the travel of the tube into the machine according to the distance of travel of the blow mold pulling it into the machine.

摘要翻译： 公开了一种改进的手持式吹塑机和用于在基本上未取向的条件下从所述材料的管形成双轴取向的，通常为高度结晶的热塑性材料的中空成型制品体链的方法，但是在取向温度 。 该机器和方法的特征在于与现有技术的两个模具机器和方法中的一个吹塑模具串联的附加吹塑模具。 操作机器，使得每个吹塑模具的模具的每个纵向拉伸部分在其上闭合的纵向拉伸部分具有基本相同的纵向拉伸或伸长程度。 这是通过将吹塑模具的行进距离拉到机器中来阻止管道进入机器的行程来完成的。

公开(公告)号：US3872202A

公开(公告)日：1975-03-18

申请号：US24773372

申请日：1972-04-26

申请人： SAINT GOBAIN

发明人： LAFOSSE CLAUDE

IPC分类号： B29C49/04 ,  B29C49/34 ,  B29C49/48 ,  B29C49/58 ,  B29C17/07

CPC分类号： B29C49/58 ,  B29C49/04 ,  B29C49/34 ,  B29C49/4817

摘要： Method of formation by blowing, of hollow articles such as bottles, of plastic material. Two mold halves are constructed and arranged so that, when brought together they conjointly define the shape of the article to be blown and form an axially disposed mass of hot plastic. A blowing passageway in one of the halves or in one of the halves of a contiguous pair, is in communication with the aforesaid mass. When pressure fluid is applied it forces its way axially through the mass, into the enclosed parison and expands it to the shape of the mold.

摘要翻译： 通过吹塑，中空制品如瓶子，塑料材料的形成方法。 两个半模被构造和布置成使得当它们组合在一起时，它们共同限定待吹制品的形状，并形成轴向设置的热塑料块。 在一半的一个或连续的一对的一个中的一个吹气通道与前述的物质连通。 当施加压力流体时，它迫使其轴向通过物料，进入封闭的型坯，并将其膨胀成模具的形状。

公开(公告)号：US3798295A

公开(公告)日：1974-03-19

申请号：US3798295D

申请日：1972-11-06

申请人： HERCULES INC

发明人： MACDUFF R

IPC分类号： B29C49/34 ,  B29C17/07

CPC分类号： B29C49/34

摘要： CONTANERS ARE MADE FROM A CONTINUOUS ORIENTED CRYSTALLINE MONO-A-OLEFIN TUBING. ORIENTATION OF THE TUBING IS EFFECTED BY HEATING THE CRYSTALLINE TUBING IN AN OVEN TO A FEW DEGREES BELOW ITS CRYSTALLINE MELTING POINT AND THEN STRETCHING OR ORIENTING THE TUBING IN AN AXIAL DIRECTION. A FIRST MOLD IS CLOSED ABOUT A LENGTH OF TUBING AND INTERNAL PRESSURE IS APPLIED TO EXPAND THE TUBING WITHIN THE MOLD TO FORM A CONTAINER. THE MOLD IS THEN MOVED AWAY FROM THE OVEN AT A RATE WHICH IS FASTER THAN THE RATE THAT THE TUBING IS EMERGING FROM THE OVEN THEREBY STRETCHING OR ORIENTING A LENGTH OF THE TUBING. A SECOND MOLD THEN CLOSES ON THE NEWLY ORIENTED LENGTH OF TUBING AND PROCEEDS IN THE SAME MANNER AS THE FIRST MOLD WHICH OPENS AND DISCHARGES ITS CONTAINER AFTER THE SECOND MOLD CLOSES. A

DOUBLE PINCH IS UTILIZED AT THE REAR OF THE MOLD TO PREVENT "BLOW-BACK" OF AIR PRESSURE PAST THE FIRST PINCH INTO THE TUBING IN THE OVEN AND IS ALSO UTILIZED TO PREVENT PULLING MATERIAL AWAY FROM THE FIRST PINCH AREA DUE TO THE MAGNITUDE OF FORCE REQUIRED TO ORIENT THE TUBING.

公开(公告)号：US3652751A

公开(公告)日：1972-03-28

申请号：US3652751D

申请日：1969-06-20

申请人： OWENS ILLINOIS INC

发明人： CRISS DONALD H ,  POLLITT ERWIN P

IPC分类号： B29C49/34 ,  B29C49/42 ,  B29C49/48 ,  B29C17/07

CPC分类号： B29C49/4236 ,  B29C49/34 ,  B29C49/4823

摘要： A plastic blow molding machine for the manufacture of bottles or the like articles and capable of extremely rapid operation, multiple molds being used to successively engage spaced portions of a continuously extruded vertically disposed tube. The closed molds move vertically with the tube during blowing, and each mold in succession opens to release the blown article, the opened mold returning toward the extrusion orifice by passing around the next consecutive, closed mold. This "hand-over-hand" operation forms a series of blown articles linked together by non-blown waste portions. To speed up the cycle, a purely mechanical drive system is utilized, eliminating any delays for limit switch operation, valve opening and the like. The vertical drive for the molds incorporates cranks driven from a common crankshaft, and the mold opening and closing movements are also driven from this crankshaft. Rotary valves on the crankshaft control the introduction and exhaust of blown air. The resultant apparatus is extremely simple, foolproof and the sequencing of the method steps is carried out automatically. The molds are refrigerated in order to reduce the mold-closed time, the mold itself receiving gaseous refrigerant directly from the evaporator of a refrigeration unit.