43results about How to "Slow down the winding speed" patented technology

The invention discloses a winding device. The winding device comprises a first fixing frame, wherein the first fixing frame is provided with a fixing shaft of a winding-up roller and a plurality of winding heads, wherein the winding heads are mounted on the fixing shaft, the winding heads are provided with an adjusting mechanism used for adjusting the rotation speed of a driving wheel, and the rotation speed of a winding shaft is greater than the rotation speed of the winding-up roller. The adjusting mechanism is used for changing the rotation speed of the driving wheel so as to change the rotation speed of the winding shaft, and the winding shaft and the winding-up roller are arranged in a differential mode, so that the winding speed of a winding shaft is greater than the winding-up speedof the winding-up roller; and then the winding shaft generates a tensile force to a film, so when passing through winding rubber of the winding-up roller, the film generates a sliding friction forcewhich is opposite to the tensile force in direction, and therefore the film is always in a tension state during the winding so as to enable film rolls to stay compact. In a similar way, the adjustingmechanism can enable the film rolls of the winding heads on the fixing shaft to stay compact during winding process, thus the use of a cylinder for adjusting can be avoided, and meanwhile each windinghead is not affected by one another in winding.

The invention discloses intelligent hoisting equipment for a building glass curtain wall. The equipment comprises a winch, a first guide cable, a second guide cable and a glass curtain wall clamp, wherein the glass curtain wall clamp comprises a connecting middle plate, a left V-shaped clamp arm and a right V-shaped clamp arm, a first linear bearing matched with the first guide cable and a secondlinear bearing matched with the second guide cable are arranged on the back surface of the connecting middle plate, a connecting ring bound by a winch rope is arranged on the connecting middle plate,a driving air cylinder, a guiding linear guide rail and a control device are arranged on the front surface of the connecting middle plate, the driving air cylinder is fixedly connected with the connecting middle plate, a first slider and a second slider are arranged on the guiding linear guide rail, and the left V-shaped clamp arm and the right V-shaped clamp arm are fixedly connected with the first slider and the second slider respectively. The intelligent hoisting equipment for the building glass curtain wall can carry out high-speed conveying, and the working efficiency is high.

A curtain rolling reducer, comprising: a rotating unit that can rotate with a reel of the curtain, a fixed unit that is sleeved with the rotating unit, a clutch unit installed in the rotating unit, and a can A resistance unit that increases resistance when the rotating unit rotates, the resistance unit is connected to the rotating unit and the fixed unit. In addition to slowing down the reeling speed of the reel, the present invention can also make the rewinding reducer suitable for modular production, and improve the ability of the curtain to change the rewinding speed. Ease of assembly when resisting.

The invention relates to a method and a device for winding a crosswound bobbin. The method is characterized in that winding operation is performed at the starting phase of a bobbin stroke at target value of winding speed; and the target value decreases relative to that of winding speed after the starting phase. The invention further relates to the device used for applying the method.

This invention relates to a method for rewinding the dyeing bobbin (4) onto a cross winding bobbin (11), wherein at the time of rewinding beginning and / or ending, the yarn (30) to unwrap from the dyeing bobbin (4) is unwrapped a defined length at a winding speed which is less than the winding speed arranged for the yarn (30) to rewind.

The invention discloses a preparation method of ultrafine denier nylon fiber, comprising the following steps: 1) Weighing the following components by weight: 96-99 parts of nylon 66 slices, TiO 2 0.35-2 parts of matting masterbatch, 0.05-1 part of phosphite antioxidant, 0.05-0.5 part of fatty alcohol phosphate and 0.05-0.5 part of polyethylene glycol antistatic agent, the model of nylon 66 slice is CM3006, and the relative molecular weight is 25000 ‑30000, the viscosity is 2.8‑2.9; 2) the raw material weighed in step 1 is prepared through the melt spinning method to obtain a nylon fiber with a monofilament fineness of 0.3‑0.5dtex, wherein in the melt spinning process, the melting temperature is 260‑ 290°C, the number of holes in the spinneret is 5-30, the hole diameter is 0.1-0.2mm, the winding speed is 300-500 m / min, the winding temperature is 18-19°C; the yield rate is over 92%. The invention also provides a preparation method of an ultra-light fabric and an ultra-light coat. The preparation method of the superfine-denier nylon fiber of the present invention can prepare the superfine-denier nylon fiber, and can ensure that the finished product rate is above 92%.