US 10,589,302 B2 · Powder container for a powder coating station

Abstract

Disclosed herein is a powder container for supplying coating powder to a powder coating station. The powder container includes a powder compartment for coating powder, the powder compartment being delimited by side walls, one of which is provided with an outlet port via which the powder compartment is or can be fluidically connected to an inlet of a powder deposition system. The effective flow cross-section of the fluid connection between the outlet port and the inlet of the powder deposition system can be variably adjusted.

Drawings

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Drawings

Claims17

Dependent claims

A system comprising a powder coating system, a powder separation system, and a powder container configured to supply coating powder to the powder coating system,

wherein the powder container comprises a powder chamber for coating powder delimited by side walls,
wherein at least one powder inlet opening is provided in a side wall of the powder chamber,
wherein an outlet opening is provided in an opposing side wall of the powder container via which the powder chamber is configured to be fluidly connected to an inlet of the powder separation system,
wherein an effective flow cross section of a fluidic connection between the outlet opening and the inlet of the powder separation system is configured to be variably adjustable,
wherein one or more controllers are further provided,
wherein a first controller of the one or more controllers is configured to regulate the effective flow cross section of the fluidic connection between the outlet opening and the inlet of the powder separation system as a function of an operating mode of the powder coating system or powder container, and
wherein:
the first controller is configured to increase the effective flow cross section of the fluidic connection between the outlet opening and the inlet of the powder separation system when the operating mode of the powder coating system or powder container changes from a powder-coating mode to a cleaning mode by controlling a valve or gate provided in the fluidic connection between the outlet opening and the inlet of the powder separation system;
and/or
the first controller is configured to reduce the effective flow cross section of the fluidic connection between the outlet opening and the inlet of the powder separation system when the operating mode of the powder coating system or powder container changes from a cleaning mode to a powder-coating mode by controlling the valve or gate provided in the fluidic connection between the outlet opening and the inlet of the powder separation system.

7 more elements

A system comprising a powder coating system, a powder separation system, and a powder container configured to supply coating powder to the powder coating system,

wherein the powder container comprises a powder chamber for coating powder delimited by side walls,
wherein an opening able to be closed by a cover is provided in an upper side wall delimiting the powder chamber,
wherein an outlet opening is provided in a side wall of the powder container via which the powder chamber is configured to be fluidly connected to an inlet of the powder separation system,
wherein an effective flow cross section of a fluidic connection between the outlet opening and the inlet of the powder separation system is configured to be variably adjustable,
wherein one or more controllers are further provided,
wherein a first controller of the one or more controllers is configured to regulate the effective flow cross section of the fluidic connection between the outlet opening and the inlet of the powder separation system as a function of an operating mode of the powder coating system or powder container, and
wherein:
the first controller is configured to increase the effective flow cross section of the fluidic connection between the outlet opening and the inlet of the powder separation system when the operating mode of the powder coating system or powder container changes from a powder-coating mode to a cleaning mode by controlling a valve or gate provided in the fluidic connection between the outlet opening and the inlet of the powder separation system;
and/or
the first controller is configured to reduce the effective flow cross section of the fluidic connection between the outlet opening and the inlet of the powder separation system when the operating mode of the powder coating system or powder container changes from a cleaning mode to a powder-coating mode by controlling the valve or gate provided in the fluidic connection between the outlet opening and the inlet of the powder separation system.

7 more elements

Dependencies are inferred from the claim text.

Description5,078 words

Summary1,453 words

#The present invention relates to a powder container for supplying coating powder to a spray coating system.

#The powder container according to the invention is in particular suitable for the powder supply of a powder coating system used to electrostatically spray coat powder onto objects in which fresh coating powder (hereinafter also called “fresh powder”) and, as applicable, reclaimed powder (hereinafter also called “recovered powder”) is situated in the powder container and is supplied by a powder-dispensing device in the form of, for example, an injector, a powder pump or a spraying mechanism, in particular a spray gun. The spraying mechanism can be for example a manual spray gun or an automatic gun.

#Fresh powder is supplied to the powder container as needed via a fresh powder line from a supplier's container in which the powder supplier supplies the fresh powder to the powder user.

Brief description of the drawings2 figures

#The following will reference the accompanying drawings in describing an example embodiment of the inventive solution.

#Shown are:

#FIG. 1 a schematic view of a powder coating system having a powder container used to supply powder according to the invention; and

Detailed description3,564 words

#FIG. 1 shows an example embodiment of a powder coating system 1 according to the inventive solution in schematic view. The powder coating system 1 serves in the spray coating of objects 2 with coating powder which is thereafter fused onto the objects 2 in a furnace not depicted in FIG. 1. One or more electronic control devices 3 are provided for controlling the operation of the powder coating system 1.

#Powder pumps 4 are provided for pumping the coating powder pneumatically. Same can be injectors in which coating powder media is suctioned out of a powder container by compressed air serving as conveying air, whereupon the mixture of conveying air and coating powder then flows together into a container or to a spraying mechanism.

#Suitable injectors are known for example from printed publication EP 0 412 289 B1.

Facts

Application

15/526,745Filed 6 Nov 2015

Priority

DE 10 2014 223 30714 Nov 2014

Published

US 2017/0320079 A19 Nov 2017

Granted

17 Mar 2020

Term ends

6 Nov 2035

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification14 codes

B05B 7/1459
Arrangements for supplying particulate material: comprising a chamber, inlet and outlet valves upstream and downstream the chamber and means for…
B05B 7/1454
Arrangements for supplying particulate material: comprising means for supplying collected oversprayed particulate material
B05B 12/14
Arrangements for controlling delivery; Arrangements for controlling the spray area: for supplying a selected one of a plurality of liquids or…
B05B 14/43
For use in spray booths: by filtering the air charged with excess material

Timeline

14 Nov 2014Priority claimedDE 10 2014 223 307
6 Nov 2015Application filedUS 15/526,745
12 May 2017Assigned to Gema Switzerland GmbHassignment of assignor's interest
9 Nov 2017PublishedUS 2017/0320079 A1
17 Mar 2020GrantedUS 10,589,302 B2
12 Oct 2026TodayWithin its term
6 Nov 2035Term endsEstimated

Powder container for a powder coating station

Life of this patent

Powder container for a powder coating station

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims17

Description5,078 words

Drawings

Classification14 codes

Life of this patent

Description5,078 words