Injection molding system
US-2016368194-A1 · Dec 22, 2016 · US
Control system and method of an injection molding apparatus of plastic materials
US11780140B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11780140-B2 |
| Application number | US-202217839867-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 14, 2022 |
| Priority date | Jun 26, 2018 |
| Publication date | Oct 10, 2023 |
| Grant date | Oct 10, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A system and method for controlling an actuator which actuates an axially displaceable pin valve of an apparatus for injection molding of plastic materials, where the control system includes an electronic control unit of the actuator which adjusts at least one among position, speed and acceleration of the pin valve, and a position sensor which detects a position of a plunger of the actuator and is operatively connected to the electronic control unit. The position sensor indirectly detects the position of the plunger of the actuator.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for controlling an actuator which actuates an axially displaceable pin valve of an injector in an apparatus for injection molding of plastic materials, wherein the actuator is a fluid jack having a cylinder and a plunger and wherein an electronic control unit of the actuator adjusts at least one among position, speed and acceleration of the pin valve of the injector, the method comprising: (i) indirectly detecting a position of the plunger of the actuator at a remote position via a position sensor operatively connected to said electronic control unit, and (ii) detecting any leakages of a delivery and discharge circuit of the actuator, wherein the position sensor is operatively associated to a movable member actuated simultaneously with the actuator and includes a plunger of an auxiliary fluid jack inserted in the delivery and discharge circuit of the actuator and located at a remote position with respect to said actuator. 2. The method of claim 1 , wherein the position sensor comprises a linear position transducer operatively associated to the plunger of the auxiliary fluid jack. 3. The method of claim 1 , further comprising the position sensor being configured for detecting an end of stroke movement of the pin valve. 4. The method of claim 1 , wherein said position sensor is configured to detect and signal leakages in the delivery and discharge circuit of said actuator.
Assignees
Inventors
Classifications
- B29C45/80Primary
of relative position of mould parts · CPC title
- B29C45/281Primary
Drive means therefor · CPC title
having position detecting means · CPC title
movable · CPC title
Position · CPC title
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Frequently asked questions
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- What does patent US11780140B2 cover?
- A system and method for controlling an actuator which actuates an axially displaceable pin valve of an apparatus for injection molding of plastic materials, where the control system includes an electronic control unit of the actuator which adjusts at least one among position, speed and acceleration of the pin valve, and a position sensor which detects a position of a plunger of the actuator and…
- Who is the assignee on this patent?
- Inglass Spa
- What technology area does this patent fall under?
- Primary CPC classification B29C45/80. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 10 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).