31results about How to "Guaranteed constant tension" patented technology

The invention relates to a tension adjusting mechanism for a copper foil surface treating machine; an upper bracket is fixed on the upper surface of a lower bracket; a guide roller is arranged in the middle of the upper surface of the lower bracket; a counterweight roller is positioned at one side of a tension adjusting roller and below the longitudinal beam of the lower bracket; the counterweight roller is hung at one end of a steel wire rope by virtue of fixed pulleys; the tension adjusting roller is positioned at the other side of the counterweight roller and above the longitudinal beam of the lower bracket; the tension adjusting roller is arranged on guide rod fixing seats positioned on the upper surface of the lower bracket; the pair of fixed pulleys are respectively arranged on the upper surface of a longitudinal beam of the upper bracket; the pair of guide rod fixing seats are respectively positioned on the upper surface of the lower bracket and the lower surface of the longitudinal beam of the upper bracket; and the positions of the two guide rod fixing seats correspond to each other. The tensile force generated by the gravity of a counterweight block is direct, and a copper foil is ensured to be tensioned since the change of the tensile force generated by the instant relaxation and tension of the copper foil can be made up by the movement of the tension adjusting roller at any time, so that the tensile force of the rolled copper foil is guaranteed to be constant. The tension adjusting mechanism has the characteristics of being simple in processing and installing as well as simple and convenient to operate, control and use.

The invention relates to the technical field of carbon fiber dipping, in particular to a one-step dipping yarn device, comprising: a constant tension unwinding mechanism, a twist-free positioning mechanism, a fiber spreading mechanism, a yarn tension sensor, a dipping mechanism, a glue extrusion setting mechanism, and an oven , traction mechanism and cutting mechanism, the yarn is released from the bobbin through the constant tension unwinding mechanism, and the unwinding mechanism is used to spread the released yarn into sheet-like yarn, and then the yarn enters the dipping mechanism. Impregnated with resin, the impregnated yarn is squeezed out of excess resin and shaped by the extrusion setting mechanism. The shaped yarn is thermally cured into a rod-shaped yarn through an oven, and the rod-shaped yarn is pulled by a pulling mechanism. A cutting mechanism is used to cut the cured yarn into segments to complete the entire carbon fiber dipping process. The dipping process of the present invention is completed in one step, with high efficiency, no pores inside after curing, and high product quality.

The invention provides a traction device for a vertical aluminum alloy pipe production line. The traction device is used for drawing and extruding produced aluminum alloy pipes and comprises upright columns and a traction trolley capable of walking on the upright columns; the upper ends and / or the lower ends of the upright columns are respectively connected to a base and a lower foundation of the vertical aluminum alloy pipe production line; the aluminum alloy pipes are extruded to extend from a position below the base; the traction trolley comprises clamping pieces; and the clamping pieces are clamped at one ends of the aluminum alloy pipes, so that the traction trolley can draw the aluminum alloy pipes to move downwards.

A belt drive tensioning clamp with adjustable size and tension force, comprising a fixed plate, including a fixed part and connecting parts arranged on both sides of the fixed part; A set of sliding bars, the sliding bars are also provided with fixing grooves; sleeves, one end of the sleeves is provided with a group of openings pierced through the connecting part, and the sleeves pass through a set of sleeves arranged on the inside of the sleeve and The outer nut is fixed on the connection part; the inner tube is arranged inside the casing, and the upper end of the inner tube is provided with a card slot, and an opening is provided in the card slot, and the slide bar is fixed by a slotted spherical head screw fixed in the card slot; the tension adjustment mechanism is arranged in the casing and the inner tube, one end of the tension adjustment mechanism is fixed on the connecting part, and the other end is fixed in the inner tube, which can adapt to Belt transmission requirements of different sizes can be installed quickly, ensuring constant tension, realizing general transformation, reusable, improving utilization rate and saving cost.

The invention discloses a wrapping head of a wrapping machine, particularly relating to a wrapping head of a generator bar wrapping machine. The wrapping head is characterized by comprising a fixing disc with an opening, and an internal ring arranged on the side surface at one end of the fixing disc, wherein the internal ring is internally provided with a roller that can clamp a bar in a rolling way; the internal ring is externally provided with a wrapping ring that can rotate around the internal ring; the rotating speed and the rotating direction of the wrapping ring can be adjusted; openings are arranged at the positions at the internal ring and the wrapping ring, corresponding to the fixing disc; one side surface of the wrapping ring is provided with a chuck and a tensioning wheel, wherein the wrapping disc can be assembled on the chuck; and the tensioning wheel can adjust the tensioning force of a wrapping belt. The wrapping head can ensure that the wrapping belt has constant tension and is not stretched or broken during the wrapping process; the tensioning force can be freely adjusted within 1kg to 15kg, thus meeting the requirements of different strip belt materials; the superposing degree can be controlled by the superposing positions of 1 / 2, 1 / 3 and the ends, thus ensuring the wrapping belt to have uniform quality.