Apparatus for checking a state of a machine part
First Claim
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1. An apparatus for checking a state of a machine part of a shaping machine, comprising:
- an evaluation unit,at least one power loss sensor for ascertaining a power loss measurement signal which is representative of a power loss in and/or at the machine part, andat least one movement sensor for ascertaining a movement measurement signal which is representative of a movement of the machine part,wherein the evaluation unit is adapted to calculate a damage indicator for the machine part from the power loss measurement signal and from the movement measurement signal,wherein the power loss denotes a difference between power input and power output, andwherein the power loss is based on heat flow and is determined by a temperature measurement or is calculated as a difference between supplied electrical power and delivered mechanical power.
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Abstract
Apparatus for checking a state of a machine part of a shaping machine, comprising an evaluation unit, at least one power loss sensor for ascertaining a power loss measurement signal which is representative of a power loss in and/or at the machine part, and at least one movement sensor for ascertaining a movement measurement signal which is representative of a movement of the machine part, wherein the evaluation unit is adapted to compute a damage indicator for the machine part from the power loss measurement signal and from the movement measurement signal.
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Citations
33 Claims
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1. An apparatus for checking a state of a machine part of a shaping machine, comprising:
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an evaluation unit, at least one power loss sensor for ascertaining a power loss measurement signal which is representative of a power loss in and/or at the machine part, and at least one movement sensor for ascertaining a movement measurement signal which is representative of a movement of the machine part, wherein the evaluation unit is adapted to calculate a damage indicator for the machine part from the power loss measurement signal and from the movement measurement signal, wherein the power loss denotes a difference between power input and power output, and wherein the power loss is based on heat flow and is determined by a temperature measurement or is calculated as a difference between supplied electrical power and delivered mechanical power. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 28, 29, 30, 31, 32, 33)
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3. A molding machine or injection press comprising:
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an apparatus for checking a state of a machine part of the molding machine or injection press, an evaluation unit, a wear sensor for ascertaining a wear of the machine part and communicating a wear measurement signal which is representative of the wear that is ascertained to the evaluation unit, and an open-loop or closed-loop control unit in signal-transmitting relationship with the evaluation unit for open-loop or closed-loop control of the molding machine or injection press, wherein the evaluation unit is adapted to calculate a damage indicator for the machine part from the wear measurement signal, and wherein the open-loop or closed-loop control unit is adapted to provide for open-loop or closed-loop control of the molding machine or injection press in dependence on the damage indicator communicated by the evaluation unit to the open-loop or closed-loop control unit and is further adapted to provide for possible shutdown of the machine part. - View Dependent Claims (4, 25, 26)
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Specification