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KR-20260065714-A - Food tray feeding apparatus for food tray washer

KR20260065714AKR 20260065714 AKR20260065714 AKR 20260065714AKR-20260065714-A

Abstract

The present invention relates to a tray feeding device for a tray washer, installed on one side of the tray washer, for sequentially feeding trays requiring washing one by one. More specifically, the invention relates to a tray feeding pivot shaft that is elastically deflected to rotate to the left when an attachment provided at regular intervals on a rotary-driven conveyor chain is caught on an attachment catch of the tray feeding pivot shaft and passes through, and the tray feeding pivot shaft rotates to the right, and drive links protruding from both ends of the tray feeding pivot shaft push and move a left-right reciprocating rod to the right, thereby causing a tray sequential feeding roller to reciprocate left and right within a certain angle range in conjunction with the left-right reciprocating rod, so as to sequentially drop and feed the bottom layer of the trays among the stacked trays one by one. In addition, when the tray sequential feeding roller rotates to the left, an arc-shaped lower wing protruding from one side of the lower outer surface of the tray sequential feeding roller supports a plurality of stacked trays. The present invention relates to a tray feeding device for a tray washing machine, wherein, when the tray sequential feeding roller is protruded and rotates to the right, an arc-shaped upper wing protruding from the upper side of the outer surface of the tray sequential feeding roller penetrates between the bottom tray and the tray immediately above it among the vertically stacked trays, thereby separating and dropping the bottom tray, and thereby enabling trays to be fed smoothly in sequence without the occurrence of accidents such as malfunction, arbitrary stop, or breakdown through a relatively simple structure in which the conveying chain is linked to the rotational drive without providing a separate driving force.

Inventors

  • 홍성훈

Assignees

  • 홍성훈

Dates

Publication Date
20260511
Application Date
20241102

Claims (4)

  1. In a tray feeding device for a tray washing machine installed on one side of the tray washing machine (2) and sequentially feeding trays (3) that need to be washed one by one: A tray support (10) provided on one side of the above tray washing machine (2) and supporting the tray (3) that has fallen downward; A transfer chain (20) having attachments (21) installed at regular intervals for transferring a food tray (3) on the food tray support (10) to the other side of the food tray washer (2), arranged in the left and right directions in a spaced-apart state in two rows from front to back on the upper side of the food tray washer (2); A rotating shaft (30) for feeding food trays, which is arranged in the front-rear direction on one side of the food tray washing machine (2) and installed to be rotatable left and right, and has an attachment catch part (31) integrally provided on both sides to receive driving force for rightward rotation by hanging the attachment (21), and has a driving link (32) protruding from both ends; A left-right reciprocating rod (40) is arranged in the left-right direction with two rows spaced apart in the front-rear direction on one side of the above-mentioned food tray washer (2), is positioned on the upper part of the above-mentioned conveyor chain (20), and is installed elastically deflected by a spring (41) so that its left end is in close contact with the above-mentioned drive link (32), so that when the above-mentioned food tray insertion pivot shaft (30) rotates upward, it is pushed to the right and then restored to its original position on the left, thereby causing the food tray insertion pivot shaft (30) to rotate downward again, and has an arm (42) protruding from one side; A support block (50) arranged in the left-right direction with two rows spaced apart front-back on one side of the above-mentioned food tray washer (2) and positioned on the upper part of the above-mentioned left-right reciprocating rod (40); and A food tray feeding device for a food tray washer, characterized by including a food tray sequential feeding roller (60) that is installed to be rotatable left and right on the support block (50) and rotates left and right within a certain angle range by means of the arm (42) of the left and right reciprocating rod (40) to sequentially drop and feed the lowest layer food tray (3) among the upper and lower stacked food trays (3) one by one into the food tray support (10), and has an arc-shaped lower wing (62) protruding from one side of the lower outer surface to support a plurality of upper and lower stacked food trays (3) when rotating to the left, and an arc-shaped upper wing (63) protruding from the other side of the upper outer surface to guide the food tray (3) to fall into the space between the lowest layer food tray (3) and the upper layer food tray (3) among the upper and lower stacked food trays (3) when rotating to the right to separate the lowest layer food tray (3).
  2. In claim 1, A food tray feeding device for a food tray washer, characterized by having a weight (33) provided at the center of the front and rear directions of the food tray feeding pivot shaft (30) to deflect the food tray feeding pivot shaft (30) so that it is always maintained in a left-sided rotating state.
  3. In claim 1, A food tray feeding device for a food tray washer, characterized in that the above-mentioned left-right reciprocating rod (40) is supported by a support guide (43) having a through hole, and the above-mentioned spring (41) is installed between the support guide (43) and a spring support plate (44) integrally formed with the left-right reciprocating rod (40) to elastically deflect the left-right reciprocating rod (40).
  4. In claim 1, A food tray feeding device for a food tray washer, characterized in that the arc-shaped lower wing (62) and the arc-shaped upper wing (63) of the above food tray sequential feeding roller (60) have ends connected in a plan view but are formed with a step difference with a gap equal to the thickness of the food tray.

Description

Food tray feeding apparatus for food tray washer The present invention relates to a tray feeding device for a tray washer, installed on one side of the tray washer, for sequentially feeding trays requiring washing one by one. More specifically, the invention relates to a tray feeding pivot shaft that is elastically deflected to rotate to the left when an attachment provided at regular intervals on a rotary-driven conveyor chain is caught on an attachment catch of the tray feeding pivot shaft and passes through, and the tray feeding pivot shaft rotates to the right, and drive links protruding from both ends of the tray feeding pivot shaft push and move a left-right reciprocating rod to the right, thereby causing a tray sequential feeding roller to reciprocate left and right within a certain angle range in conjunction with the left-right reciprocating rod, so as to sequentially drop and feed the bottom layer of the trays among the stacked trays one by one. In addition, when the tray sequential feeding roller rotates to the left, an arc-shaped lower wing protruding from one side of the lower outer surface of the tray sequential feeding roller supports a plurality of stacked trays. The present invention relates to a tray feeding device for a tray washing machine, wherein, when the tray sequential feeding roller is protruded and rotates to the right, an arc-shaped upper wing protruding from the upper side of the outer surface of the tray sequential feeding roller penetrates between the bottom tray and the tray immediately above it among the vertically stacked trays, thereby separating and dropping the bottom tray, and thereby enabling trays to be fed smoothly in sequence without the occurrence of accidents such as malfunction, arbitrary stop, or breakdown through a relatively simple structure in which the conveying chain is linked to the rotational drive without providing a separate driving force. Generally, when serving group meals at places such as schools, cafeterias, and rest areas, trays are left with a large amount of food residue even after the leftovers have been roughly disposed of during serving and after the meal. Therefore, to remove food residue stuck to the trays, a tray washer is used that sprays washing water while simultaneously using brushes to clean the remaining food residue. As an example of such a tray washer, Korean Patent Registration No. 10-1129371 (March 26, 2012) comprises: a main body having an inlet for a tray on one side and an outlet for discharging the tray on the other side; a conveyor for transporting the tray from the inlet to the outlet of the main body; a tray separation supply unit comprising a plurality of tray separation shafts rotatably installed on both sides of the conveyor and a separation guide each spirally wound and fixed to the outer circumference of the tray separation shafts, wherein when each tray separation shaft rotates, the side of the lowest layer tray placed on the separation guide is inserted into the gap of each separation guide to separate it from the trays stacked on the separation guide and supply it to the conveyor; and a tray leveling detection unit for detecting the horizontal state of the tray supplied from the tray separation supply unit and placed on the conveyor. A food tray washer is disclosed, characterized by including a washing unit having a plurality of brushes installed between the inlet and outlet of the main body to wash the food tray transported by the conveyor. In addition, Korean Patent Registration No. 10-1575151 (December 7, 2015) describes a housing forming an exterior; a tray input unit including a support unit installed on one side of the housing and supporting a stacked tray, and a plurality of spiral cams arranged oppositely to separate the stacked trays one by one and move them from a stacking position to a washing position; a tray washing unit installed inside the housing and washing the trays one by one; a tray discharge unit for discharging the trays washed in the tray washing unit; a tray transfer unit for transferring the trays from the tray input unit, through the tray washing unit, to the tray discharge unit; and a light sensor installed between the bottom surface of the blade of the spiral cam and the top surface of the tray input unit, wherein if a phenomenon occurs in which the tray gets caught on one of the plurality of spiral cams, the illumination light is blocked by the tray and a jamming signal is generated accordingly. A food tray washing machine is disclosed, comprising a food tray basket installed at the rear end of the food tray discharge section to collect the food trays coming out of the food tray discharge section. The food tray feeding device applied to the aforementioned conventional food tray washer has a structure in which, while a plurality of stacked food trays are supported in a horizontal state, food trays are automatically dropped one by one sequentially to a conveyor installed in the food tray w