Withdrawal system for withdrawing items from packaging box

Patent metadata

Field	Value
Publication number	US-12129123-B2
Application number	US-202117801106-A
Country	US
Kind code	B2
Filing date	Feb 19, 2021
Priority date	Feb 19, 2020
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

Abstract

A system for taking out items wrapped in a packaging film and accommodated in a packaging box with an open top. The system includes a first conveyor configured to transfer a packaging box accommodating items therein, a fixing device for fixing, at a withdrawal position where the items are taken out of the packaging box, the packaging box transferred by the first conveyor with its top open, a withdrawal device for moving to a space in which the items are accommodated in the packaging box so as to suck the same using vacuum suction and take out the same, an item transfer device for transferring the items taken out by the withdrawal device with the items placed on the item transfer device, and a box transfer device for transferring an empty packaging box from which the items are taken out.

First claim

The invention claimed is:

1. A system for taking out items wrapped in a packaging film and accommodated in a packaging box with an open top, comprising:
a first conveyor configured to transfer a packaging box accommodating items therein;
a fixing means for fixing, at a withdrawal position where the items are taken out of the packaging box, the packaging box transferred by the first conveyor with its top open;
a withdrawal means for moving to a space in which the items are accommodated in the packaging box so as to suck and take out the items;
an item transfer means for transferring the items taken out by the withdrawal means with the items placed on the item transfer means; and
a box transfer means for transferring an empty packaging box from which the items are taken out;
wherein, the items are stacked to form a cylinder as a whole, and are arranged in the packaging box such that the cylinder of stacked items has an axis parallel to a direction transferred by the first conveyor;
wherein the withdrawal means is provided with a concave arc-shaped suction surface having a diameter corresponding to the diameter of each item, and the suction surface is provided with a through-hole in communication with an external vacuum source for suctioning the packaging film of the item by vacuum;
wherein, the item has both longitudinal ends having different diameters;
wherein the withdrawal means is provided with a sensor configured to detect the diameter of one end of the item;
wherein, the item transfer means comprises a third conveyor, on which the item taken out by the withdrawal means is placed and transferred, and a rotating device on which the item taken out by the withdrawal means are placed and rotated by 180 degrees; and
when the diameter of one end of the item detected by the sensor is different from the diameter of one end of another item, the withdrawal means loads the associated item onto the rotating device, and sucks and loads the associated item onto the third conveyor after the rotating device rotates.

2. The system according to claim 1 , wherein:
the packaging box is transferred in a first direction to the withdrawal position by the first conveyor;
the empty packaging box from which the items are taken out is transferred in a second direction perpendicular to the first direction by the box transfer means;
the first conveyor comprises two conveyor belts extending parallel to each other in the first direction; and
the box transfer means is composed of a second conveyor disposed beneath between the conveyor belts of the first conveyor at the withdrawal position, and after the items are taken out of the packaging box by the withdrawal means, the box transfer means rises above the conveyor belts of the first conveyor and is driven in contact with a bottom of the packaging box to transfer the empty packaging box in the second direction.

3. The system according to claim 1 , wherein the sensor comprises a bar disposed at one longitudinal end of the item to be pressed and protrude toward the axis of the item in a radial direction of the item, and the sensor detects which end of both ends of the item is in contact with the bar according to a protruding length of the bar.

4. The system according to claim 1 , wherein the fixing means comprises a suction device configured to move up and down beneath the packaging box and suck a bottom of the packaging box when the items are taken out of the packaging box.

Assignees

• Cj Cheiljedang Corp

Inventors

• Kim Myung Ho
• Park Sung Woo
• Sung Bong Yong
• Son Hee Dong
• Kim Dae Hwa
• Kim Sun Kyu
• Kim Soo Hyun
• Kim Hak Dong
• Jung In Soo

Classifications

• B65G2207/14

  Combination of conveyors · CPC title

• B65G2203/042

  Sensors · CPC title

• B65G2203/0208

  relating to the transported articles · CPC title

• B65G47/918

  with at least two picking-up heads · CPC title

• B65G47/912

  provided with drive systems with rectilinear movements only · CPC title