[특허]Stretch wrapping apparatus and method

Stretch wrapping apparatus and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-007/00 B65B-011/04 B65B-041/12 B65B-057/04
출원번호	US-0471932 (2014-08-28)
등록번호	US-9896229 (2018-02-20)
발명자 / 주소	Pierson, Cary Michael Schenk, Nathaniel T. Heston, Stephen L.
출원인 / 주소	Top Tier, LLC
대리인 / 주소	Hancock Hughey LLP
인용정보	피인용 횟수 : 0 인용 특허 : 133

초록 ▼

A stretch wrapping apparatus for use with an automated palletizing machine to securely stabilize loads. A stretch wrapping head feeds pre-stretched wrapping film toward the rotating load and air jets blow the tail of the film onto the load. Relative rotational movement is created between the wrapping head and the load and the free end of the film is unsupported by any mechanical structure and is directed toward the load only with air from the jets. The film attaches to an outer surface the load. Film is dispensed at a rate to provide payout of film that is consistent with the demand as each load corner transitions through its relative distance change from the dispensing point based on calculations intervals. A sensor detects changes in the optical character of the film to determine an out of bounds condition such as a film break.

대표청구항 ▼

1. An apparatus for stretch wrapping a load supported on a surface, comprising: a vertically movable dispensing head having at least one pair of pre-stretch rollers adapted for dispensing film, said film having a free end;a first drive mechanism for driving the pre-stretch rollers in order to dispense film at a known payout rate;a source of pressured air blowing through air jets trained on the film as it is dispensed from the pre-stretch rollers, thereby blowing the free end of the film toward the load;a second drive mechanism adapted to provide relative rotation between the surface and the dispensing head;wherein said film attaches to said load when said film makes sustained contact with an outer surface of said load due to relative rotation between the load and dispensing head. 2. An apparatus according to claim 1 wherein: (a) the length and width of the load, the distance between the dispensing head and the rotational axis, and the corners of the load are known; (b) the rate of relative rotation is known; and (c) the film payout rate is determined by and consistent with a calculated film demand. 3. An apparatus according to claim 2 wherein said film is dispensed at a film payout rate that is based upon the calculated film demand. 4. An apparatus according to claim 1 wherein said free end of the film results from a break in said film during a wrapping cycle. 5. An apparatus according to claim 4 including a sensor adapted to detect the presence of said film. 6. An apparatus according to claim 5 wherein said sensor is adapted to detect said break in the film between the dispensing head and the load. 7. An apparatus according to claim 6 wherein if the sensor detects a break in said film, the film payout rate is adjusted based upon the known relative rate of rotation so that said film reattaches to said load when said film makes contact with said load. 8. An apparatus according to claim 7 wherein the film wrap sequence is adjusted to overwrap portion of load where film defect was encountered. 9. An apparatus for stretch wrapping a load, comprising: a surface for supporting said load, said load having known dimensions;a dispensing head having a at least one pair of driven pre-stretch rollers adapted for dispensing a free end of film;a drive mechanism configured to provide relative motion between said surface and said dispensing head;a source of pressurized air blown through air jets directed toward said film as it is dispensed from the pre-stretch rollers, thereby blowing a free end of the film toward the load;a controller for controlling the rate at which film is dispensed from the pre-stretch rollers based upon a known speed of relative rotation between said load and said dispensing head;wherein said free end of said film attaches to said load when said free end makes contact with said load. 10. An apparatus according to claim 9 wherein said drive mechanism is causing relative rotation between said load and said dispensing head when said free end of said film attaches to an outer surface of said load. 11. An apparatus according to claim 10 including a sensor for determining the presence and absence of film. 12. An apparatus according to claim 11 wherein the presence or absence of film is determined by an optical characteristic detected by said sensor. 13. An apparatus for stretch wrapping a load, comprising: a vertically movable dispensing head having at least one pair of pre-stretch rollers adapted for dispensing film, said film having a free end;a first drive mechanism for driving the pre-stretch rollers in order to dispense film at a known payout rate;a source of pressured air blowing through air jets trained on the film as it is dispensed from the pre-stretch rollers, thereby blowing the free end of the film toward the load;a second drive mechanism adapted to provide relative rotation between the load and the dispensing head, wherein the relative rotation between the load and the dispensing head defines a rotational axis;wherein said film attaches to said load when said film makes sustained contact with an outer surface of said load due to relative rotation between the load and dispensing head;wherein (a) the length and width of the load, the distance between the delivery head and the rotational axis, and the corners of the load are known; (b) the rate of relative rotation is known; and (c) the film payout rate is determined by and consistent with a calculated film demand.

이 특허에 인용된 특허 (133)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Stretch wrapping apparatus and method 원문보기

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Stretch wrapping apparatus and method 원문보기

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