摘要:
An improved device for detecting extraneous conducting bodies in fibre bales processed in bale opening machines, comprising longitudinal shoes (16) between which rotating beaters (4) for withdrawing the fibres and grooved conveying wheels (17) are inserted, and conductance sensors connected into an electrical circuit (29) having one pole (32) connected to the shoes and the other pole (33) connected to said rotating members operating on the fibres and inserted in the gaps between the shoes.
摘要:
An improved bale opening machine comprising beaters (4) rotating at high speed in the gaps within a grid of shoes (16) which bear on the bales being worked and which extend longitudinally into that region comprising a series of grooved wheels (17) for leading and conveying the fibres into the region of action of the beaters. The conveying wheels also operate in the gaps between said shoes.
摘要:
The device comprises a support body (15) fixable to the machine structure and an operating lever (20) pivoted to the support body (15). Two parts (18a, 18b) are axially slidable within the support body (15), one carrying a brake shoe (19) arranged to act on the shank (11) of the spindle and the other engaged with the operating lever (20), the two parts (18a, 18b) being maintained axially spaced apart by a compression spring (24). A return spring (23) acts between the support body (15) and the part (18b) engaging the operating lever (20) to maintain the device in its inactive position. On pressing the lever (20), the brake shoe (19) is urged against the spindle shank (11) with a pressure which depends on the spring (24) interposed between the two parts (18a, 18b), independently of the force exerted on the operating lever (20), so preventing damage or operational problems arising in the spindles if the operator presses excessively on the operating lever (20).
摘要:
The position of the gripper unit in a combing machine is monitored, and when the machine is to be halted its stoppage is controlled such that the machine halts always and only when the gripper unit is at its point of maximum opening or maximum closeness to the grabbing rollers. A position sensor (35) is associated for example with the rocker arm (18) which operates the gripper unit and provides pulses at each rocking movement of the arm (18). When the machine motor (27) is to be halted a braking action is produced by a brake (36) after a predetermined time or after measuring a certain number of pulses from the sensor (35) or on measuring a determined time interval between pulses, so as to effectively halt the machine with the gripper unit open.
摘要:
To secure the end of the roving (5) to packages (9) before their doffing from a roving frame, it is proposed to initially raise the package support carriage (2) into a position such that the lower end (4a) of the tubes (4) is at the level of the compressor (16) of the flyers (6), then rotate the packages (9) and flyers (6) through a few revolutions in order to wind and secure the roving (5) onto the lower end portion (4a) of the tubes (4), after which the carriage (2) is lowered to break the roving (5) in the section between the lower end (4a) of the tubes (4) and the flyers (6). Preferably, before lowering the packages (9), a reserve of roving (5) is created by slowly rotating the flyers (6) and packages (9) through a few revolutions, to simultaneously twist the roving (5) and strengthen it.
摘要:
A carding flat and a system for guiding and driving it in a card with moving flats driven by articulated chains, in which coupling between the flats (7) and chains (8) is achieved by a form fit using recesses (17) and projections (16) without fixed retention means, so that these elements are not mutually constrained in the direction perpendicular to the chain movement.