摘要:
A device for eliminating the trailing end of the film that is formed on wrapping machines for wrapping palletized loads when the reel of film is replaced, is of the type in which the wrapping machine is equipped with: a first, reel-holder, assembly (A), constituted by pre-stretching rollers (3, 4) driven by motor means (7), return idlers (5) and a compensator arm (6); and a second, welding, assembly (B) constituted by a gripper (9), welding means (10), and cutting means (11); the film sliding between the reel (1), said first assembly (A) and said second assembly (B), and the load (P) set on the pallet. Positioned between the reel (1) and the first assembly (A) is a mobile unit (12) provided with a re-winding roller (14) designed to press on the reel (1) in operating conditions.
摘要:
The invention concerns a method and a device in a paper machine, coating machine, intermediate winder, unwind stand of a slitter-winder, or in any other device for treatment of a web. In the event of disturbance, the web (P) is made to be wound in a controlled way around at least one web guide roll (18a).
摘要:
Verfahren und Vorrichtung zum Verbinden von Materialbahnen, nämlich einem Ende einer Neubahn (34) mit einem Ende einer Ablaufbahn (58). Neubahn (34) einerseits und Ablaufbahn (29) andererseits werden je für sich durch Klemmstücke (49, 50; 51, 52) erfaßt und angehalten. Ablaufbahn (29) und Neubahn (34) werden sodann durchtrennt. Die fixierten Bahnenden - Ablaufende (58) und Neuanfang (59) - werden durch die Klemmstücke (49, 50; 51, 52) in einer gemeinsamen Ebene positioniert und durch ein Tape (60) miteinander verbunden.
摘要:
La présente invention a pour objet un procédé de coupe et de raccordement de deux bandes bout à bout et à l'arrêt, à savoir une première bande (2a) assurant l'alimentation et une seconde bande (2b) de remplacement, dans une machine à dérouler comprenant un dispositif de coupe et de raccordement comprenant deux ensembles de raccordement (1a, 1b) disposés symétriquement par rapport à un plan de coupe et de raccordement (P). Il consiste à réaliser, à partir d'un tel dispositif des étapes de préparation de la seconde bande puis des étapes d'immobilisation des bandes dans ledit plan, de coupe simultanée et transversale de ces dernières, de dégagement des parties coupées (20b, 21a) non à raccorder, et de raccordement bout à bout de leurs parties coupées (20a, 21b) à raccorder. Elle a également pour objet un dispositif de coupe et de raccordement et d'une machine permettant la mise en oeuvre dudit procédé.
摘要:
The invention concerns a method and a device in a paper machine, coating machine, intermediate winder, unwind stand of a slitter-winder, or in any other device for treatment of a web. In the event of disturbance, the web (P) is made to be wound in a controlled way around at least one web guide roll (18a).
摘要:
An apparatus and method for splicing tapes dispensed from a tape dispenser. According to one embodiment, a first, running or unwinding roll of tape is provided with a first splicing element secured to its trailing end portion. A second, stationary or standby roll of tape is provided with a second splicing element secured to its leading end portion. The second splicing element comprises a body made of a self-supporting material and formed with at least one aperture sized to receive the tape from the first roll. While tape is being dispensed from the first roll, the running tape is inserted into the aperture of the second splicing element. When the first roll of tape becomes depleted, the first splicing element engages the second splicing element, thereby splicing the leading end portion of the second tape roll to the trailing end portion of the first tape roll.