Injection molding system and method

Inventors: Ching-Hao Chen (Taichung City, TW); Yi-Chung Lee (Taichung City, TW)

Assignee: KING STEEL MACHINERY CO., LTD.

B29C45/06 B29C45/13 B29C45/162

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Quick Facts

Patent No.: US 12703133
App. No.: 18/542,758
Granted: Aug 11, 2026
Kind: B2

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Abstract

An injection molding system is provided. The injection molding system includes a first carrier, a first injector, a second carrier, a second injector, and a bridging mechanism. The first carrier is configured to hold a first mold. The first injector is disposed over the first carrier and configured to inject a first polymeric material. The second carrier is configured to hold a second mold. The second injector is disposed over the second carrier and configured to inject a second polymeric material. The bridging mechanism is disposed between and rotatable relative to the first carrier and the second carrier. The bridging mechanism is configured to receive a third mold from the first carrier or the second carrier and convey the third mold between the first carrier and the second carrier.

Claims (36)

1 . An injection molding system, comprising:

a first carrier configured to hold a first mold;

a first injector disposed over the first carrier and configured to inject a first polymeric material;

a second carrier configured to hold a second mold;

a second injector disposed over the second carrier and configured to inject a second polymeric material; and

a bridging mechanism disposed between and moveable relative to the first carrier and the second carrier, and configured to receive a third mold from the first carrier or the second carrier and convey the third mold between the first carrier and the second carrier,

wherein the first carrier is rotatable relative to the bridging mechanism, and the first mold is movable closer to or farther away from the bridging mechanism by the first carrier.

2 . The injection molding system of claim 1 , wherein the first and second polymeric materials are foamable, non-foamable or slightly foamable materials.

3 . The injection molding system of claim 1 , wherein the third mold disposed adjacent to the first mold is conveyable from the first carrier to the second carrier to dispose the third mold adjacent to the second mold, or the third mold disposed adjacent to the second mold is conveyable from the second carrier to the first carrier to dispose the third mold adjacent to the first mold.

4 . The injection molding system of claim 1 , wherein the first mold is fixedly attached to the first carrier, and the second mold is fixedly attached to the second carrier.

5 . The injection molding system of claim 1 , wherein a first mold cavity is defined by the first mold and the third mold and a second mold cavity is defined by the second mold and the third mold, wherein the first polymeric material is injected into the first mold cavity by the first injector, and the second polymeric material is injected into the second mold cavity by the second injector.

6 . The injection molding system of claim 5 , wherein the first mold includes a first sprue configured to receive the first polymeric material from the first injector and communicable with the first mold cavity, and the second mold includes a second sprue configured to receive the second polymeric material from the second injector and communicable with the second mold cavity.

7 . The injection molding system of claim 1 , wherein the bridging mechanism comprises:

a first conveying unit configured to convey the third mold from the first carrier to a first receiving space of the bridging mechanism; and

a second conveying unit configured to convey the third mold from the second carrier to a second receiving space of the bridging mechanism.

8 . The injection molding system of claim 7 , wherein the first and second receiving spaces are disposed at opposite sides of the bridging mechanism.

9 . The injection molding system of claim 8 , wherein each of the first and second conveying units is a rail or belt.

10 . The injection molding system of claim 1 , wherein second carrier is rotatable relative to the bridging mechanism, and the second mold is movable closer to or farther away from the bridging mechanism by the second carrier.

11 . The injection molding system of claim 10 , wherein a first rotation center of the first carrier, a second rotation center of the second carrier and a third rotation center of the bridging mechanism are arranged on a straight line.

12 . An injection molding system, comprising:

a first carrier configured to hold a first mold;

a first injector disposed over the first carrier and configured to inject a first polymeric material into a first mold cavity defined by the first mold and a third mold;

a second carrier configured to hold a second mold;

a second injector disposed over the second carrier and configured to inject a second polymeric material into a second mold cavity defined by the second mold and the third mold; and

a bridging mechanism disposed between and moveable relative to the first carrier and the second carrier, and configured to convey the third mold with the first polymeric material from the first carrier to the second carrier or the third mold with the second polymeric material from the second carrier to the first carrier,

wherein the first carrier and the second carrier are respectively rotatable relative to the bridging mechanism.

13 . The injection molding system of claim 12 , wherein the first polymeric material and the second polymeric material have the same physical properties.

14 . The injection molding system of claim 12 , wherein the first polymeric material and the second polymeric material have different physical properties.

15 . The injection molding system of claim 12 , wherein the first and second polymeric materials are foamable, non-foamable or slightly foamable materials.

16 . The injection molding system of claim 12 , wherein the first mold is fixedly attached to the first carrier, and the second mold is fixedly attached to the second carrier.

17 . The injection molding system of claim 12 , wherein the bridging mechanism comprises:

a first conveying unit configured to convey the third mold from the first carrier to a first receiving space of the bridging mechanism; and

a second conveying unit configured to convey the third mold from the second carrier to a second receiving space of the bridging mechanism,

wherein the first and second receiving spaces are disposed at opposite sides of the bridging mechanism.

18 . The injection molding system of claim 17 , wherein each of the first and second conveying units is a rail or belt.

19 . The injection molding system of claim 12 , wherein a first rotation center of the first carrier, a second rotation center of the second carrier and a third rotation center of the bridging mechanism are arranged on a straight line.