A METHOD AND A SYSTEM FOR CONTROLLING CIRCUMFERENTIAL WRAPPING OF A CYLINDRICAL BALE IN A BALE FORMING CHAMBER OF A BALER, AND A BALER AND A METHOD FOR PRODUCING A CIRCUMFERENTIALLY WRAPPED BALE
MCHALE, Padraic Christopher,,MCHALE, Martin William,,HEANEY, James John,,SHERIDAN, Gerard Patrick,,COLLINS, Donal Patrick,,MCDERMOTT, Karol Angelo,
申请号：
IEIE2013/000006
公开号：
WO2013/124836A1
申请日:
2013.02.25
申请国别(地区):
WO
年份:
2013
代理人:
摘要：
A fixed chamber baler (1) having a bale forming chamber (12) within which a bale (2) of silage is formed and circumferentially wrapped with wrapping film (3) comprises a system for controlling the degree of stretch in the feed direction of the wrapping film (3) with which the bale (2) is wrapped. The system comprises a first rotary encoder (51) for monitoring the rotational speed of a bale rotating roller (18e) of the baler (1), and a second rotary encoder (54) for monitoring the rotational speed of a tensioning roller (32) for tensioning the wrapping film (3). A microprocessor (56) from signals read from the first and second rotary encoders (51,54) computes the ratio of the difference of the linear speeds of the wrapping film (3) adjacent the rotating bale (2) and the tensioning roller (32) to the linear speed of the wrapping film (3) adjacent the tensioning roller (32), which is the value of the degree of stretch being induced in the wrapping film (3) as it is being wrapped onto the bale (2). A torsional load applied to the tensioning roller (32) is varied for varying the rotational speed of the tensioning roller (32) until the degree of stretch with which the wrapping film (3) is being applied to the rotating bale (2) equals a predefined degree of stretch stored in the microprocessor (56).La présente invention a trait à une ramasseuse-presse à chambre fixe (1) qui est dotée dune chambre de formation de balles (12) à lintérieur de laquelle une balle (2) de fourrage vert est formée et emballée de façon circonférentielle au moyen dun film demballage (3), laquelle ramasseuse-presse à chambre fixe (1) comprend un système permettant de contrôler le taux détirage dans la direction dalimentation du film demballage (3) avec lequel la balle (2) est emballée. Le système comprend un premier codeur rotatif (51) permettant de surveiller la vitesse de rotation dun rouleau rotatif de balle (18e) de la ramasseuse-presse (1), et un second codeur rotatif (54) permettant de surveill
