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1. 发明申请

US20170203929A1 CONTROLLING A VACUUM SYSTEM COMPRISING A VACUUM GENERATOR 审中-公开
公开(公告)号：US20170203929A1
公开(公告)日：2017-07-20
申请号：US15404766
申请日：2017-01-12
申请人： Xerex AB
发明人： Gustaf Wigren , Peter Engborg
IPC分类号： B65G47/91 , B66C1/02
CPC分类号： B65G47/917 , B25J15/0625 , B66C1/02 , B66C1/0256 , B66C1/0268
摘要： A controller (5) for controlling a vacuum generator (3) in a vacuum system (10) for transportation of objects, which vacuum system (3) comprises a vacuum generator (3) driven by a compressed air flow via a first on/off valve (1), wherein the vacuum generator (3) via a vacuum chamber (11) being part of the vacuum system (10) is arranged to be brought in flow connection with the vacuum gripper means (6) comprised in the vacuum system (10), in order to supply vacuum to the vacuum gripper means (6) in result of the compressed air flow, wherein the vacuum system (10) comprises a second valve (2) arranged to supply compressed air into the vacuum system (10); a pressure sensor (4) for monitoring (21) a system pressure (P) inside the vacuum chamber (11); and a vacuum system controller (5), wherein the controller (5) is arranged to communicate with the first on/off valve (1), the second valve (2) and the pressure sensor and when the on/off valve (1) is not flowing air to the vacuum generator (3), and the controller (5) indicates a state of no vacuum generation, and if a fluctuation from a pressure-equilibrium to a negative time-derivative of the system-pressure (P) is detected, the controller is arranged to activate the second valve (2), allowing an amount of compressed air to flow into the vacuum-chamber (11) for compensation to re-establish the pressure-equilibrium.

2. 发明申请

US20170355083A1 CONTROLLING A VACUUM SYSTEM COMPRISING A VACUUM GENERATOR 审中-公开
公开(公告)号：US20170355083A1
公开(公告)日：2017-12-14
申请号：US15619680
申请日：2017-06-12
申请人： Xerex AB
发明人： Gustaf Wigren , Peter Engborg
IPC分类号： B25J15/06
CPC分类号： B25J15/0633 , B25J15/0625 , B25J15/0658 , B65G47/917 , F04F5/20 , F04F5/52
摘要： A method for controlling a vacuum generator (3) in a vacuum system (10) for transportation of objects, which vacuum system (10) comprises a vacuum generator (3) driven by a compressed air flow via a first on/off valve (1), wherein the vacuum generator (3) is arranged to be brought in flow connection with the vacuum gripper means (6) comprised in the vacuum system (10), in order to supply vacuum to the vacuum gripper means (6) in result of the compressed air flow, wherein the vacuum system (10) comprises a second valve (2), which is arranged to supply compressed air into the vacuum system (10); one centralized pressure sensor (4) used for monitoring a system pressure (P) inside the vacuum system (10) and for adaptive blow-off; and a vacuum system controller (5), wherein if the on/off valve (1) is not flowing air to the vacuum generator (3), the vacuum system controller (5) indicates a state of no vacuum generation, and the second valve (2) is activated, allowing an amount of compressed air to flow into the vacuum-system (10) for blow-off, using vacuum system properties being characterized with respect to volume and flow-restriction in relation to the blow-off capacity of the blow-off function and for every release cycle wherein blow-off is terminated and excessive air injected into the system is released through the vacuum gripper means, analyzing pressure propagation following blow-off for calculating a duration of when the vacuum system (10) is being fully pressure-equalized (E) in parts of the vacuum gripper means by using a compensation factor (k), wherein the compensation factor (k) is stored and used for the next release cycle.

3. 发明授权

US10399237B2 Controlling a vacuum system comprising a vacuum generator 有权
公开(公告)号：US10399237B2
公开(公告)日：2019-09-03
申请号：US15619680
申请日：2017-06-12
申请人： Xerex AB
发明人： Gustaf Wigren , Peter Engborg
IPC分类号： B25J15/06 , B65G47/91 , F04F5/52
摘要： A method for controlling a vacuum generator (3) in a vacuum system (10) for transportation of objects, which vacuum system (10) comprises a vacuum generator (3) driven by a compressed air flow via a first on/off valve (1), wherein the vacuum generator (3) is arranged to be brought in flow connection with the vacuum gripper means (6) comprised in the vacuum system (10), in order to supply vacuum to the vacuum gripper means (6) in result of the compressed air flow, wherein the vacuum system (10) comprises a second valve (2), which is arranged to supply compressed air into the vacuum system (10); one centralized pressure sensor (4) used for monitoring a system pressure (P) inside the vacuum system (10) and for adaptive blow-off; and a vacuum system controller (5), wherein if the on/off valve (1) is not flowing air to the vacuum generator (3), the vacuum system controller (5) indicates a state of no vacuum generation, and the second valve (2) is activated, allowing an amount of compressed air to flow into the vacuum-system (10) for blow-off, using vacuum system properties being characterized with respect to volume and flow-restriction in relation to the blow-off capacity of the blow-off function and for every release cycle wherein blow-off is terminated and excessive air injected into the system is released through the vacuum gripper means, analyzing pressure propagation following blow-off for calculating a duration of when the vacuum system (10) is being fully pressure-equalized (E) in parts of the vacuum gripper means by using a compensation factor (k), wherein the compensation factor (k) is stored and used for the next release cycle.

4. 发明申请

US20170350784A1 CONTROLLING A VACUUM SYSTEM COMPRISING A VACUUM GENERATOR ARRANGEMENT 审中-公开
公开(公告)号：US20170350784A1
公开(公告)日：2017-12-07
申请号：US15610667
申请日：2017-06-01
申请人： Xerex AB
发明人： Gustaf Wigren , Peter Engborg
IPC分类号： G01M3/28 , G01M3/18 , G05D16/20 , G01M3/32 , G01N1/14 , G01L21/00
CPC分类号： G01M3/2876 , F04F5/20 , F04F5/52 , G01L21/00 , G01M3/184 , G01M3/2815 , G01M3/3263 , G01N1/14 , G05D16/2066
摘要： The invention relates to energy saving in vacuum systems by means of a method and a controller enabling to consider the fluctuation in system-pressure of a system by determining a maximum system-pressure S2H and a minimum system-pressure S2h for each working cycle WC based on a determined target system-pressure pn− and a pre-set system-pressure p0− for the current working cycle WCn (n=1, 2, 3, . . . ). The method is especially adapted to fluctuations in system-pressure level of a vacuum system comprising a vacuum gripper tool.

5. 发明授权

US10371595B2 Controlling a vacuum system comprising a vacuum generator arrangement 有权
公开(公告)号：US10371595B2
公开(公告)日：2019-08-06
申请号：US15610667
申请日：2017-06-01
申请人： Xerex AB
发明人： Gustaf Wigren , Peter Engborg
IPC分类号： G01L21/00 , G01M3/28 , G01M3/18 , G01M3/32 , G05D16/20 , F04F5/20 , F04F5/52 , G01N1/14
摘要： The invention relates to energy saving in vacuum systems by means of a method and a controller enabling to consider the fluctuation in system-pressure of a system by determining a maximum system-pressure S2H and a minimum system-pressure S2h for each working cycle WC based on a determined target system-pressure pn− and a pre-set system-pressure p0− for the current working cycle WCn (n=1, 2, 3, . . . ). The method is especially adapted to fluctuations in system-pressure level of a vacuum system comprising a vacuum gripper tool.

6. 发明授权

US10059533B2 Controlling a vacuum system comprising a vacuum generator 有权
公开(公告)号：US10059533B2
公开(公告)日：2018-08-28
申请号：US15404766
申请日：2017-01-12
申请人： Xerex AB
发明人： Gustaf Wigren , Peter Engborg
IPC分类号： B65G47/91 , B66C1/02 , B25J15/06
CPC分类号： B65G47/917 , B25J15/0625 , B66C1/02 , B66C1/0256 , B66C1/0268
摘要： A controller for controlling a vacuum generator in a vacuum system for transportation of objects, which vacuum system comprises a vacuum generator driven by a compressed air flow via a first on/off valve, to supply vacuum to a vacuum gripper, the vacuum system comprises a second valve arranged to supply compressed air into the vacuum system; a pressure sensor for monitoring a system-pressure inside a vacuum chamber; and the controller that is arranged to communicate with the first on/off valve, the second valve and the pressure sensor; and when the on/off valve is not flowing air to the vacuum generator, and the controller indicates a state of no vacuum generation, and if a fluctuation from a pressure-equilibrium to a negative time-derivative of the system-pressure is detected, the controller is arranged to activate the second valve, allowing compressed air to flow into the vacuum-chamber for compensation to re-establish the pressure-equilibrium.

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