Mixer and dewatering method thereof

Patent metadata

Field	Value
Publication number	US-12329323-B2
Application number	US-202017629515-A
Country	US
Kind code	B2
Filing date	Jul 17, 2020
Priority date	Jul 24, 2019
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

A mixer according to the present disclosure comprises: a mixer body including an outer container, a pulverizing blade and a blade driving unit for rotating the pulverizing blade; an inner container unit including an inner container disposed within the outer container, provided with the pulverizing blade, and having a lateral opening formed therein, and an inner container driving unit configured to rotate the inner container; and; and a dewatering unit including a dewatering container which has a dewatering hole formed therethrough and surrounds the inner container while blocking the lateral opening to receive a mixing object in the inner container, and a dewatering container speed change device for changing the rotational speed of the dewatering container, wherein a scraper protrudes from the outer side surface of the inner container to scrape down a blocking-component of the mixing object, which blocks the dewatering hole of the dewatering container.

First claim

The invention claimed is:

1. A mixer, comprising:
a mixer body including an outer container, a pulverizing blade and a blade driving unit configured to rotate the pulverizing blade;
an inner container unit including an inner container disposed within the outer container, provided with the pulverizing blade, and having a lateral opening formed therein, and an inner container driving unit configured to rotate the inner container; and
a dewatering unit including a dewatering container configured to block the lateral opening by surrounding the inner container so as to accommodate the mixing object therein and to have a dewatering hole therein, and a dewatering container speed change device configured to change a rotational speed of the dewatering container,
wherein a scraper protrudes from an outer side surface of the inner container to scrape off a blocking component of the mixing object blocking the dewatering hole of the dewatering container.

2. The mixer of claim 1 ,
wherein a plurality of stop grooves are formed along a lower edge of the dewatering container,
wherein the dewatering container speed change device includes a dewatering container speed limiting unit configured to limit a rotational speed of the dewatering container, and
wherein the dewatering container speed limiting unit includes:
a stop pin configured to rise toward the stop groove side of the dewatering container and to stop rotation of the dewatering container by being drawn and caught into the stop groove; and
a pin driving member configured to lift the stop pin.

3. The mixer of claim 2 ,
wherein, in the outer container, a stop hole through which the stop pin is lifted is formed in a lower portion, and a pin accommodation bracket is formed to accommodate the stop pin on a lower side of the stop hole in the lower portion, and
wherein the dewatering container speed limiting unit further includes an elastic member disposed between a head of the stop pin and a lower surface of the outer container, and configured to, when lifting pressure of the pin driving member with respect to the stop pin is released, provide elastic force to move down the stop pin while the stop pin is maintained to block the stop hole.

4. The mixer of claim 2 , wherein the dewatering unit includes a dewatering support rail disposed within the outer container, and having a lower rim of the dewatering container seated therein and supporting the dewatering container to slide and rotate.

5. The mixer of claim 1 , wherein the dewatering container speed limiting unit includes:
a friction pad configured to rise toward a lower side of the dewatering container and to reduce a rotational speed of the dewatering container when in contact with a lower portion of the dewatering container; and
a pad driving member connected to the friction pad and configured to lift the friction pad.

6. The mixer of claim 1 , wherein the scraper is formed on an outer side surface of the inner container in a longitudinal direction, and protrudes to an inner side surface of the dewatering container.

7. The mixer of claim 6 , wherein a plurality of the lateral openings are formed on a side portion of the inner container in a transverse direction, and a plurality of the scraper are disposed between the plurality of lateral openings.

8. The mixer of claim 1 , wherein the inner container has a liquid accommodation projection formed on a lower side of a side portion thereof.

9. The mixer of claim 1 ,
wherein a protrusion is formed on an inner side surface of the inner container such that the mixing object rotating while being pulverized by the pulverizing blade is caught into the protrusion, and
wherein the protrusion has a screw protrusion line shape to, when the pulverizing blade and the inner container rotate in opposite directions, guide a downward spiral flow of the mixing object such that the mixing object flows downwardly while rotating in an opposite direction to a direction of rotation of the pulverizing blade.

10. The mixer of claim 1 ,
wherein the blade driving unit includes a blade rotating shaft connected to a lower portion of the pulverizing blade; and a blade driving motor connected to the blade rotating shaft to rotate the blade rotating shaft,
wherein the inner container driving unit includes an inner container rotating shaft connected to a lower portion of the inner container; and an inner container driving motor connected to the inner container rotating shaft to rotate the inner container rotating shaft, and
wherein the blade rotating shaft is disposed within a hollow of the inner container rotating shaft, and the blade rotating shaft and the inner container rotating shaft rotate independently of each other.

11. The mixer of claim 10 ,
wherein a first bearing is installed between the blade rotating shaft and the inner container rotating shaft, and a second bearing is installed between a lower extension portion extending from the lower portion of the outer container and formed around the inner container rotating shaft and the inner container rotating shaft, and
wherein the second bearing is a one-way bearing.

12. The mixer of claim 1 ,
wherein an open upper portion of the outer container is opened and closed by an outer container cover, an open upper portion of the dewatering container is opened and closed by a dewatering container cover, and an open upper portion of the inner container is opened and closed by an inner container cover,
wherein an outer container cover groove is formed on a lower surface of the outer container cover, and a dewatering container cover protrusion inserted into the outer container cover groove and configured to be rotatable is formed on an upper surface of the dewatering container cover, and
wherein a dewatering container cover groove is formed on the lower surface of the dewatering container cover, and an inner container cover projection inserted into the dewatering container cover groove and configured to be rotatable is formed on an upper surface of the inner container.

13. The mixer of claim 1 ,
wherein the blade driving unit includes a blade rotating shaft connected to a lower portion of the pulverizing blade, and a blade driving member connected to the blade rotating shaft to rotate the blade rotating shaft,
wherein the inner container driving unit includes an inner container rotating shaft connected to a lower portion of the inner container, and an inner container driving member connected to the inner container rotating shaft to rotate the inner container rotating shaft,
wherein the dewatering container speed change device includes a dewatering container driving portion configured to drive and rotate the dewatering container, and
wherein the dewatering container driving unit includes a dewatering container rotating shaft connected to a lower portion of the dewatering container, and a dewatering container driving member connected to the dewatering container rotating shaft to rotate the dewatering container rotating shaft.

14. The mixer of claim 13 , wherein the blade rotating shaft is disposed within a hollow of the inner container rotating shaft, and the inner container rotating shaft is disposed within a hollow of the dewatering container rotating shaft, such that the blade rotating shaft, the inner container rotating shaft, and the dewatering container rotating shaft rotate independently of each other.

15. The mixer of claim 14 ,
wherein a first bearing is installed between the blade rotating shaft and the inner container rotating shaft, and a second bearing is installed between the inner container rotating shaft and the dewateri

Assignees

• Intropack Co Ltd
• Nuc Electronics Co Ltd

Inventors

• Lee Kyul-Joo

Classifications

• A47J43/046

  with tools driven from the bottom side · CPC title

• A47J19/02

  Citrus fruit squeezers; Other fruit juice extracting devices · CPC title

• B02C2018/162

  Shape or inner surface of shredder-housings · CPC title

• F26B11/022

  Arrangements of drives, bearings, supports · CPC title

• F26B25/16

  mainly closed, e.g. drum · CPC title