Thermal camera system for die-cast machine

• US 10,343,211 B2
• Filed: 08/25/2016
• Issued: 07/09/2019
• Est. Priority Date: 08/25/2016
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kress, Robert M, De Neff, Robert
• Primary Examiner(s): Kerns, Kevin P
• Assistant Examiner(s): Ha, Steven S
• Application Number:
  US15/246,820
• Publication Number:
  US 20180056382A1
• Time in Patent Office: 1,048 Days
• CPC Class Codes: B22D 17/002 using movable moulds for plastics B29C45/04
• CPC Class Codes: B22D 17/2007 Methods or apparatus for cleaning or lubricating moulds
• CPC Class Codes: B22D 17/2015 Means for forcing the molten metal into the die for plastics B29C45/46
• CPC Class Codes: B22D 17/32 Controlling equipment

Abstract

A die cast machine for producing a manufactured part includes a fixed die maintaining a fixed position in the die cast machine. The fixed die has an internal fixed die surface. A movable die moves from a first position to a second position in the die cast machine. The movable die has an internal movable die surface. A sprayer applies a die release agent to the internal fixed die surface and the internal movable die surface before operation of the die cast machine. A first thermal imaging apparatus takes thermal images of the fixed die, and a second thermal imaging apparatus takes thermal images of the movable die. Application of die release agent is controlled by the temperatures of the fixed and movable dies as determined by the thermal images.

Claims

1. A die cast system for producing a manufactured part, comprising:

a die cast machine, comprising;

a fixed die configured to maintain a fixed position in the die cast machine, the fixed die having an internal fixed die surface;

a movable die configured to move from a first position adjacent to the fixed die to a second position spaced apart from the fixed die in the die cast machine, the movable die having an internal movable die surface;

a sprayer for applying a die release agent to the internal fixed die surface and the internal movable die surface before operation of the die cast machine;

a first thermal imaging apparatus disposed in the die cast machine and configured to face the internal fixed dies surface of the fixed die for taking a first thermal image of the internal fixed die surface of the fixed die; and

a second thermal imaging apparatus disposed in the die cast machine and configured to face the internal movable die surface of the movable die for taking a second thermal image of the internal movable die surface of the movable die in the second position, the second thermal imaging apparatus and the first thermal imaging apparatus being connected to a programmable logic controller and further configured to capture images at specified times; and

wherein the sprayer is configured to apply the die release agent based upon the first thermal image and the second thermal image.

2. The die cast system of claim 1 further comprising:

the programmable logic controller having a display screen, wherein the image of the fixed die and the image of the movable die are displayed on the display screen.

3. The die cast system of claim 2 further comprising:

a first enclosure encapsulating the first thermal imaging apparatus and separate from the first thermal imaging apparatus for protecting the first thermal imaging apparatus, the first enclosure comprising;

a shutter that moves from an open position to a closed position over an opening in the first enclosure;

a clear pane covering the opening; and

an air knife to prevent debris from entering the opening when the shutter is in an open position, the air knife comprising;

an annular channel around the opening;

a passageway delivering pressurized air to the annular channel; and

wherein the pressurized air passes through the annular channel into the opening, thereby preventing debris from entering the opening.

4. The die cast system of claim 3 further comprising:

a second enclosure encapsulating the second thermal imaging apparatus and separate from the second thermal imaging apparatus for protecting the second thermal imaging apparatus, the second enclosure comprising;

a shutter that moves from an open position to a closed position over an opening in the second enclosure;

a clear pane covering the opening; and

an air knife to prevent debris from entering the opening when the shutter is in an open position, the air knife comprising;

an annular channel around the opening;

a passageway delivering pressurized air to the annular channel; and

wherein the pressurized air passes through the annular channel into the opening, thereby preventing debris from entering the opening.

5. The die cast system of claim 4 wherein the first thermal imaging apparatus is mounted on the movable die.

6. The die cast system of claim 5 wherein the second thermal imaging apparatus is mounted on the fixed die.

7. A die cast machine for producing a manufactured part, comprising:

a fixed die affixed to the die cast machine in a fixed position in the die cast machine, the fixed die having an internal fixed die surface;

a movable die configured to move from a first position adjacent to the fixed die to a second position spaced apart from the fixed die in the die cast machine, the movable die having an internal movable die surface;

a sprayer configured to apply a die release agent to the internal fixed die surface and the internal movable die surface before operation of the die cast machine;

a first thermal imaging apparatus mounted to the movable die and oriented toward the fixed die surface for taking a first thermal image of the internal fixed die surface of the fixed die;

a second thermal imaging apparatus mounted to the fixed die and oriented toward the second position of the movable die for taking a second thermal image of the internal movable die surface of the movable die;

a programmable logic controller operatively connected to the first and second thermal imaging apparatuses and the sprayer, the programmable logic controller configured to operate the first and second thermal imaging apparatuses to capture the first and second thermal images at specified times and calculating a first component temperature based upon the first thermal image and a second component temperature based upon the second thermal image, wherein the sprayer is configured to be adjusted by the programmable logic controller to apply the die release agent based upon the first component temperature and the second component temperature.

8. The die cast machine of claim 7 further comprising:

a display screen in electronic communication with the programmable logic controller, wherein the first thermal image of the fixed die and the second thermal image of the movable die are displayed on the display screen.

9. The die cast machine of claim 8 further comprising:

an alarm operable by and in communication with the programmable logic controller.

10. The die cast machine of claim 7 further comprising:

a first enclosure mounted to the movable die for protecting the first thermal imaging apparatus, the first enclosure comprising;

a shutter that moves from an open position to a closed position over an opening in the first enclosure;

a clear pane covering the opening; and

an air knife to prevent debris from entering the opening when the shutter is in an open position, the air knife comprising;

an annular channel around the opening;

a passageway delivering pressurized air to the annular channel; and

wherein the pressurized air passes through the annular channel into the opening, thereby preventing debris from entering the opening.

11. The die cast machine of claim 10 further comprising:

a second enclosure mounted to the fixed die for protecting the second thermal imaging apparatus, the second enclosure comprising;

a shutter that moves from an open position to a closed position over an opening in the second enclosure;

a clear pane covering the opening; and

an air knife to prevent debris from entering the opening when the shutter is in an open position, the air knife comprising;

an annular channel around the opening;

a passageway delivering pressurized air to the annular channel; and

wherein the pressurized air passes through the annular channel into the opening, thereby preventing debris from entering the opening.