US 10,722,818 B2Granted

Agitation/defoaming method and agitation/defoaming device

AssigneeShashin Kagaku Co., Ltd.

InventorsFumihiko Takaoka, Yuki Nakamura

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Abstract

[Problem] To provide a agitation/defoaming method and device with which both of uniformity in dispersion of object to be processed and reduction of air bubbles can be achieved with high precision. [Solution] Provided is a agitation/defoaming method for producing orbital and spin motions of a container containing object to be processed by a device provided with orbital and spin drive motors that can independently control the velocities of the orbital and spin motions. Both defoaming and agitating treatments with high precision can be achieved by respectively performing a reverse rotation superimposition processing, wherein the rotational frequency of the spin drive motor is obtained by superimposing the first rotational frequency in a direction opposite to the direction of the orbital motion on the frequency of the orbital motion, and a same rotation superimposition processing, wherein the rotational frequency of the spin drive motor is obtained by superimposing the second rotational frequency in the same direction as the direction of the orbital motion on the frequency of the orbital motion, at least once.

Claims12

Dependent claims

An agitation/defoaming method, the method for, by producing an orbital motion and a spin motion of a container containing object to be processed, agitating/defoaming the object,

wherein the spin motion includes a reverse rotation superimposition processing and a same rotation superimposition processing to be respectively performed,
wherein the reverse rotation superimposition processing is performed by superimposing a motion rotated at a first rotational frequency and in a direction opposite to a direction of the orbital motion on a rotational velocity with the same rotational direction as the direction of the orbital motion and the same rotational frequency as a frequency of the orbital motion,
wherein the same rotation superimposition processing is performed by superimposing a motion rotated at a second rotational frequency and in the same direction as the direction of the orbital motion on the rotational velocity with the same rotational direction as the direction of the orbital motion and the same rotational frequency as the frequency of the orbital motion, and
wherein a range of the first rotational frequency is equal to or more than 0.2 times and equal to or less than 2.0 times relative to the frequency of the orbital motion, and a range of the second rotational frequency is equal to or more than 0.05 times and equal to or less than 1.6 times relative to the frequency of the orbital motion.

1 more element

An agitation/defoaming device, comprising:

a container holder provided with a spin shaft;
a rotational unit that the spin shaft rotatably contacts through a bearing;
an orbital shaft connected with the rotational unit;
an orbital drive motor connected with the orbital shaft using a first rotational motion transmission member;
a spin drive shaft connected with the container holder using a second rotational drive transmission member;
a spin drive motor connected with the spin drive shaft by a third rotational motion transmission member;
a first storage for storing a predetermined frequency of an orbital motion, a first rotational frequency, and a second rotational frequency, wherein a range of the first rotational frequency is equal to or more than 0.2 times and equal to or less than 2.0 times relative to the predetermined frequency of the orbital motion, and a range of the second rotational frequency is equal to or more than 0.05 times and equal to or less than 1.6 times relative to the frequency of the orbital motion;
an operation unit for calculating a first frequency of a spin motion that is obtained by subtracting the first rotational frequency from the predetermined frequency of the orbital motion stored in the first storage, and a second frequency of the spin motion that is obtained by adding the second rotational frequency to the predetermined frequency of the orbital motion stored in the first storage;
a second storage for storing the predetermined frequency of the orbital motion, the first frequency of the spin motion, and the second frequency of the spin motion;
a flow storage for storing a processing order for driving the spin drive motor at the first or second frequency of the spin motion;
and
a control unit for driving the orbital drive motor at the predetermined frequency of the orbital motion in a predetermined orbital direction, reading the processing order stored in the flow storage, the first frequency of the spin motion and the second frequency of the spin motion stored in the second storage, and driving the spin drive motor at the first frequency of the spin motion or second frequency of the spin motion according to the processing order.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/769,647Filed 6 Oct 2016
Priority: JP 2015-20863223 Oct 2015
Published: US 2018/0304175 A125 Oct 2018
Granted: 28 Jul 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B01D 19/0057
In rotating vessels, vessels containing movable parts or in which centrifugal movement is caused: the centrifugal movement being caused by a…
B01D 19/00
Degasification of liquids
B01F 29/10
Mixers with rotating receptacles: with receptacles rotated about two different axes, e.g. receptacles having planetary motion
B01F 29/31
Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles: the containers being supported by driving means, e.g.…