摘要:
In a test pressurizing system for a hose such as fire hose, a device is arranged for bearing of a pressurized hose in a way that it is surrounded by protective wall parts. Further, a mechanism is provided on the inside of the wall parts for marking of holes and/or other damages that can be maneuvered automatically or manually via the operator so that at least some protective wall part protects the operator under pressurization. The marking device may be combined with a device for automatic detection of holes and damages. This can for example admit marking of the hose with high precision, and/or be part of a fully automated solution for detection and marking of holes in the hose.
摘要:
In a winding apparatus for endless threads, a revolving disc (6) has at least two clamping chucks (8, 10) rotatably supported on the periphery thereof. A friction roll (2), the shaft (4) of which as well as the shaft (12) of the revolving disc (6) are mounted in a frame (14) at fixed locations. The shaft (12) is connected to a first drive device (120) and the first shaft (4) is connected to a second drive device (40). Each clamping chuck (8, 10) is provided with its own third drive device (80), and fourth drive device (100) respectively.
摘要:
In a winding apparatus for endless threads with a revolving disc (6) in the periphery of which at least two clamping chucks (8, 10) are rotatably supported and with a friction roll (2) the shaft of which as well as the shaft (12) of the revolving disc (6) are mounted at fixed locations in a frame, a shaft each (4, 12) is connected to a first drive device (120), and with a second drive device (40) respectively. Each clamping chuck is provided with its own third drive device (80), and a fourth drive device (100) respectively. The contacting pressure between the friction roll (2) and a respective clamping chuck each can be adjusted as a function of the diameter of a thread package being built on a clamping chuck.
摘要:
A method of balancing a spindle in a yarn winder comprising,(a) a base for supporting a yarn take-up means,(b) the yarn take-up means including,(b-1) a spindle driving mechanism mounted to the base,(b-2) a long spindle comprising,(b-2-1) a bobbin holding portion more than 800 mm in length including a first cylindrical hollow body, a cylindrical and substantially solid body connected to the first cylindrical hollow body and a second cylindrical hollow body connected to the cylindrical solid body, and(b-2-2) a shaft extending from a center of the inner end of the cylindrical solid body along the axis thereof through the interior of the second cylindrical hollow body and projecting therefrom, the shaft being connected to the spindle driving mechanism,(b-3) bearing means for rotatably supporting the spindle on the base, and(b-4) a bobbin holding mechanism secured around the periphery of the bobbin holding portion, for detachably mounting thereon at least a bobbin for taking up a yarn,the steps which comprise balancing the bobbin holding portion dynamically by field-balancing carried out by adjusting a test weight in each of at least three planes defined at opposition ends of the bobbin holding portion and an intermediate point therebetween, each of the weights being determined from sensing vibration data obtained by vibration testing carried out with and without an added test weight in each of said at least three planes extending at an angle to the axis of said spindle.
摘要:
A process for determining the optimum winding speed to obtain greater productivity of an automatic coner machine fed with a certain type of yarn. Acceleration and braking values are optimized, as well as various production parameters of the devices along the path of the yarn. For example, the yarn tension, the slub catching level, and the amount and nature of the lubricant, or paraffin, applied to the yarn. The collection front of the machine is subdivided into various winding sectors. Each sector is preset, by means of a central microprocessor unit, to operate at a winding speed, and with operating parameters which are partially different from, and partially equal to, the operating parameters of the other sectors, according to a program pre-set in said central unit. The central microprocessor unit processes the data received from each individual sector, and compares them to each other to define and display the values of the operating parameters. This allows the highest productivity to be obtained in the yarn winding process.
摘要:
The invention relates to a device for controlling the take-up speed of a winding frame for textile yarns, which winding frame has peripheral drive by means of a pilot roller and axial drive by means of a gas turbine integral with the spindle which carries the winding. The device acts when the winding is out of contact with the pilot roller.The control device includes:a calculating unit which, using pulses originating from the pilot roller, emits pulses at a required frequency of the spindle, anda frequency comparator which compares the frequency of pulses originating from the rotating spindle with the required frequency, and which, from the comparison, controls a device for regulating the fluid supply of the turbine.Several winding frames can be simultaneously controlled. The device can be used to provide the spindle with an overspeed at the start of winding, in order to avoid drops in tension.
摘要:
The assembly for winding yarn on a thread package comprises electrically operated friction drive means and electrically operated axial drive means. The mandrel tube which carries the bobbin tube and the thread package is frictionally driven. The mandrel itself is axially driven by the electrically operated axial drive means. The friction drive and the axial drive are effective to operate in tandem. The friction drive comprises a synchronous motor. The axial drive includes a three-phase a.c. motor, a reluctance motor, or a d.c. motor.
摘要:
Winding equipment for textile coils includes a device for adjusting retrograde rotary motion in a coil being frictionally driven by a winding cylinder. The device has reduction gearing, and means for inserting said reduction gearing between the winding cylinder and the coil.
摘要:
A power transmission socket for bobbins comprising a pair of coupled members, a first of which is connectable to a bobbin and second of which is connectable to a driving base of a spindle. The members are coupled to each other such that they can turn relative to each other a predetermined small distance for gripping the spindle. The members are provided with integral projections, respectively, and form complementary recesses rotatably displaceable relative to corresponding projections which have a spindle gripping surface and an outward engaging surface urging projections displaced inwardly as well as in the direction opposite to that of the rotation of the spindle causing the gripping surface to grip the spindle.