公开(公告)号：EP3684578B1

公开(公告)日：2023-01-11

申请号：EP18753158.7

申请日：2018-08-09

Inventor： SCHAAF, Ulrich ,  KUGLER, Andreas

IPC: B29C33/14 ,  B29C45/14 ,  H01L21/56 ,  H05K3/28 ,  B29C45/57

公开(公告)号：EP3950253A1

公开(公告)日：2022-02-09

申请号：EP21182708.4

申请日：2021-06-30

Applicant: Tetra Laval Holdings & Finance S.A.

Inventor： GOLFIERI, Daniele ,  STAGLIANO, Armando ,  MARTINI, Pietro ,  MORCIANO, Alessio

IPC: B29C33/12 ,  B29C45/26 ,  B29C45/02 ,  B29C45/27 ,  B31B50/81 ,  B31B50/84 ,  B65B61/18 ,  B29C45/77 ,  B29C45/57

Abstract: There is described a molding apparatus (20, 20', 20", 20''') for molding an opening device onto a web (3) of packaging material comprising at least one mold unit (21, 44, 45) couplable to the web (3) of packaging material; and an injection device (22, 22''') configured to inject a molten polymer into the mold unit (21, 44, 45). The injection device (22, 22''') comprises at least a cavity configured to receive the molten polymer, an inlet (25) configured to allow for introduction of the molten polymer into the cavity, a first outlet configured to allow for an outflow of a first portion of the molten polymer from the cavity, a first valve element (27, 29, 53) configured to selectively open and close the first outlet, a second outlet configured to allow for an outflow of a second portion of the molten polymer from the cavity, a second valve element (27, 29, 53) configured to selectively open and close the second outlet and a pressurizing unit (30) being in fluidic connection with the cavity and configured to pressurize the molten polymer within the cavity.

公开(公告)号：EP3228434A1

公开(公告)日：2017-10-11

申请号：EP15856795.8

申请日：2015-07-02

Applicant: Suzuki, Yasuhiro

Inventor： Suzuki, Yasuhiro

IPC: B29C45/57 ,  B29C45/40

CPC classification number: B29C45/401 ,  B29C45/0025 ,  B29C45/1734 ,  B29C45/174 ,  B29C45/2673 ,  B29C45/34 ,  B29C45/40 ,  B29C45/57 ,  B29C2045/1741 ,  B29C2045/4015 ,  B29C2045/4052

Abstract: [Problem]The present invention relates to a manufacturing method for obtaining a molded article having an expanded layer in the molded article, wherein an expanding agent and device used to manufacture a resin having expansion properties, and a means for increasing expansion ratio are provided.
[Solution] In the present invention, an expanding agent placed in a heating cylinder of a molding machine is configured as a liquid, the volume of the expanding agent is controlled, and the expanding agent is injected into a molten resin in the heating cylinder of the molding machine. The volume of the injected expanding agent can thereby be accurately measured each time. When a low-boiling liquid such as water, an alcohol, or an ether is used as the injected expanding agent, all of the liquid is vaporized by the temperature of the heating cylinder of the molding machine, and no residue thereof is therefore left in the molded article. When sodium bicarbonate water is used as the injected expanding agent, solvent water vaporizes and water vapor also becomes expandable gas, which is less expensive than using sodium bicarbonate as the expanding agent for a master batch using the resin that is to be molded.

Abstract translation: 本发明涉及获得在成形品中具有发泡层的成形体的制造方法，其中，设置用于制造具有发泡性的树脂的发泡剂和装置，以及提高发泡倍率的手段。 [解决方案]在本发明中，将放置在成型机的加热缸中的发泡剂构造为液体，控制发泡剂的体积，并将发泡剂注入到加热缸中的熔融树脂中 成型机。 由此可以准确地测量每次注入的膨胀剂的体积。 当使用诸如水，醇或醚的低沸点液体作为注入的发泡剂时，所有的液体都在成型机的加热缸的温度下汽化，因此不留下其残留物 模制品。 当使用碳酸氢钠作为注入的膨胀剂时，溶剂水蒸发并且水蒸气也变成可膨胀气体，这比使用碳酸氢钠作为用于使用待模塑的树脂的母料的膨胀剂便宜。

公开(公告)号：EP2428346A2

公开(公告)日：2012-03-14

申请号：EP11180933.1

申请日：2011-09-12

Applicant: Ricoh Company, Ltd.

Inventor： Ohhashi, Takamichi ,  Hayashi, Eiichi ,  Hirano, AKIO ,  Takahashi, Go ,  Hatashita, Chieko

IPC: B29C45/57 ,  B29D11/00 ,  B29C33/30 ,  G02B3/00 ,  G02B26/10

CPC classification number: B29C33/30 ,  B29D11/0048 ,  Y10T428/24479

Abstract: A resin casting mold includes a cavity having a predetermined shape and is used for producing a molded resin product by transferring the shape of a surface on the cavity side of a mold member forming the cavity to a resin material. The surface on the cavity side of the mold member includes first and second surfaces facing each other in a first direction and each of the first and second surfaces have a predetermined surface shape, the mold member includes an insert member which forms a part of a third surface different from any one of the first and second surfaces of the surface on the cavity side and which is slidable in a second direction perpendicular to the first direction, at least one cross-sectional shape of the cavity satisfies a relation h

Abstract translation: 树脂铸造模具包括具有预定形状的空腔，并且通过将形成空腔的模具构件的空腔侧的表面的形状转移到树脂材料上而用于制造模制树脂产品。 模具构件的空腔侧的表面包括在第一方向上彼此面对的第一表面和第二表面，并且每个第一表面和第二表面都具有预定的表面形状，模具构件包括形成第三部分的一部分的插入部件 表面不同于空腔侧的表面的第一和第二表面中的任何一个，并且可沿垂直于第一方向的第二方向滑动，空腔的至少一个横截面形状满足关系h

公开(公告)号：EP1912773A1

公开(公告)日：2008-04-23

申请号：EP06764056.5

申请日：2006-07-04

Applicant: Kunststoff - Prof. Ehrenstein GbR

Inventor： EHRENSTEIN, Prof. Dr.-Ing. h.c. Gottfried W.

IPC: B29C45/57 ,  B29C45/00 ,  B29C43/00 ,  B29C45/56

CPC classification number: B29C43/003 ,  B29C33/08 ,  B29C43/00 ,  B29C43/58 ,  B29C45/00 ,  B29C45/561 ,  B29C45/57 ,  B29C2043/3444 ,  B29C2043/5808 ,  B29C2043/5816 ,  B29C2045/0094 ,  B29C2045/7356 ,  B29C2045/7393

Abstract: The invention relates to a method for producing a molded element, which method comprises the following steps: introducing a melt into a molding tool (102, 104), increasing the pressure of the melt to such a degree that the melt solidifies, and cooling the solidified melt. The invention also relates to a control for a machine and to a computer program product.

公开(公告)号：EP1848576A1

公开(公告)日：2007-10-31

申请号：EP06719716.0

申请日：2006-01-27

Applicant: 3M Innovative Properties Company

Inventor： PETERSON, Robert W. ,  YOUNG, James K.

IPC: B29C45/17 ,  B29C45/57

CPC classification number: B29C45/1701 ,  B29C2045/1702 ,  B29K2069/00 ,  B29K2995/0087

Abstract: A method for forming shaped parts from polycarbonate that results in parts having substantially increased chemical resistance. The method includes providing a mold having at least one cavity, such that the mold has a means for cooling the area adjacent to the cavity. Molten polycarbonate is then mixed with a supercritical fluid to form a mixture. This mixture is injected into the mold while using the cooling means to cool the cavity so that its temperature is no more than 150 degrees F. Further improvement in chemical resistance is achieved when fluid pressure is held on the cooling part for a short period.

公开(公告)号：EP1844916A1

公开(公告)日：2007-10-17

申请号：EP07006626.1

申请日：2007-03-30

Applicant: ENGEL AUSTRIA GmbH

Inventor： Steinbichler, Georg

IPC: B29C45/46 ,  B29C45/27 ,  B29C45/57

CPC classification number: B29C45/46 ,  B29C45/27 ,  B29C45/572 ,  B29C2045/467

Abstract: Einrichtung zum Expansionsspritzgießen mit der von einer Hauptdruckquelle unter Druck gesetzte Kunststoffschmelze aus einem Speicherraum (4) mit absperrbarem Ausgang (5) in einen Formhohlraum (3) durch Expansion der unter Druck gespeicherten Kunststoffschmelze, gegebenenfalls unterstützt durch elastische Verformung der Wandung (8) des Speicherraums (4) und/oder der Wandung (7) eines zum Speicherraum (4) führenden Kanals 6, einspritzbar ist, wobei der Speicherraum (4) in einer den Formhohlraum (3) bildenden Form (1) angeordnet ist und ein zusätzlicher Druckspeicher und/oder eine zusätzliche Druckquelle vorgesehen ist (sind), der und/oder die dazu geeignet ist (sind), zusätzlichen Druck beim Einspritzen der Kunststoffschmelze in den Formhohlraum (3) auf die Kunststoffschmelze auszuüben, um den Formhohlraum (3), vorzugsweise vollständig, zu füllen.

Abstract translation: 膨胀注塑机具有连接到外部主压力源的储存室（4），其中熔体在压力下储存。 这通过可密封的出口（5）连接到模制室（3）。 存储室形成包含模制室的模具的一部分，并且附加的压力存储系统（12）和任选的压力源允许向熔体施加额外的压力以确保模制室被完全填充。

公开(公告)号：EP1405708A4

公开(公告)日：2007-09-05

申请号：EP02736064

申请日：2002-06-12

Applicant: TOP KK

Inventor： CHIBA ATSUSHI

IPC: B29C45/26 ,  B29C45/27 ,  B29C45/57 ,  B29C45/38

CPC classification number: B29C45/57 ,  B29C45/261 ,  B29C45/2708 ,  B29C45/572 ,  B29C2045/577 ,  B29L2031/7544

Abstract: A method of manufacturing a tube of an injector having a cylindrical part with an excellent roundness and capable of preventing deformation and warpage from occurring thereon, comprising the steps of injecting molten resin (R) into the cavity (17) of a metal mold (11) comprising a fixed mold (13) having a hole part (12) formed along the outer shape of the injector outer tube (1) provided therein, a movable mold (14) closing the hole part (12), and a core (15) inserted into the hole part (12), injecting the molten resin (R) into a cylindrical hollow part (21) communicating with the flange formed part (20) of the hole part (12) from a spool (22) and a runner (23) through a submarine gate (24) to lead the molten resin (R) into the cavity (17), force-feeding the resin inside the cylindrical hollow part (21) into the cavity (17) by a push pin (25) installed in the cylindrical hollow part (21) when the molten resin comes into semi-molten state, and when the molten resin (R) is not filled sufficiently into the cavity (17), the wait position of the push pin (25) is changed in the direction of moving apart from the connection part of the submarine gate (24) and the molten resin (R) is injected to re-fill the insufficient resin into the cavity (17).

公开(公告)号：EP0944466B1

公开(公告)日：2001-07-04

申请号：EP97954351.9

申请日：1997-12-03

Applicant: Hehl, Karl

Inventor： Hehl, Karl

IPC: B29C45/56 ,  B29C45/57

CPC classification number: B29C45/57 ,  B29C45/561 ,  B29C2045/563

Abstract: In a process for manufacturing injection mouldings in an injection moulding machine for processing plasticized masses, a regulated subsequent pressure is applied by the injection moulding unit (13). At least in the areas of the moulding away from the sprue, the subsequent pressure is generated by a regulated volume alteration of the mould cavity. The subsequent pressure can thus be reliably distributed during the subsequent pressure phase even in the case of complex mouldings.

公开(公告)号：EP1052078A1

公开(公告)日：2000-11-15

申请号：EP00108926.7

申请日：2000-04-27

Applicant: HEKUMA Herbst Maschinenbau GmbH

Inventor： Herbst, Richard

IPC: B29C45/57 ,  B29C45/27

CPC classification number: B29C45/572 ,  B29C45/2703 ,  B29C45/2806 ,  B29C2045/2683 ,  B29C2045/2691 ,  B29C2045/575 ,  H01L21/565 ,  H01L2924/0002 ,  H01L2924/00

Abstract: Eine Spritzgießmaschine sowie ein Verfahren zum Spritzgießen von Kunststoffartikeln in deren Werkzeug (10) werden beschrieben. In dem Werkzeug (10) befinden sich Formhohlräume. Zu den Formhohlräumen führt eine Mehrzahl von Kanälen (32, 38a, 38b).. In Kanälen (32, 38a, 38b) sind Verschlußelemente (50) zum individuellen, ferngesteuerten Verschließen des jeweiligen Kanals (32, 38a, 38b) vorgesehen. Die Verschlußelemente (50) sind während des Betriebes der Spritzgießmaschine programmgesteuert fernsteuerbar. In mindestens einem der Kanäle (38a, 38b) sind stromabwärts des Verschlußelementes (50) eine Drucksteuerung (88) zum Einstellen des Drucks in einem in dem Kanal (38a, 38b) befindlichen Kunststoffmaterial vorgesehen.

Abstract translation: 注射成型机在各个通道（32）中具有单独的密封部件（50），这些通道（32）供给模制室。 这些可以被编程以控制下游通道（38a，38b）中的塑料中的压力。 对于使用该机器注塑塑料制品的方法，还包括独立权利要求。