10results about How to "Maintain tension" patented technology

The utility model discloses an auxiliary tensioning device for a plastic film, and relates to the technical field of tensioning devices, the auxiliary tensioning device comprises a rack and a tensioning mechanism, side plates are symmetrically arranged on two sides of the rack, a main guide rod is rotatably connected above a position between the two side plates, two side guide rods which are respectively rotatably connected with the side plates are arranged on two sides of the main guide rod from top to bottom, and the side guide rods are rotatably connected with the side plates. A tensioning rod is connected between the two side guide rods through a tensioning mechanism and the side plates. According to the plastic film tensioning device, the sliding block connected with the tensioning rod moves on the sliding rod, the tensioning degree is adjusted through the spring on the sliding rod, and the tensioning strength of a plastic film is kept; and meanwhile, when the position of the sliding rod is adjusted, a rotating rod on the sliding rod is rotated to enable the sliding rod to move by a corresponding distance, so that different tension requirements of the plastic film are met.

The invention relates to the technical field of flat angle line machining equipment, and provides flat angle line calendering equipment which comprises a calendering rack, a wire guiding device, a calendering device and a measuring instrument, the wire guiding device comprises a wire guiding wheel set and a tensioning mechanism which are arranged on the calendering rack, and the wire guiding wheel set comprises a plurality of wire guiding wheels arranged on the calendering rack at intervals; the wire guide wheel is rotationally connected with the calendering rack, the tensioning mechanism comprises a first driving assembly and a tensioning wheel, and the first driving assembly is used for driving the tensioning wheel to move; the calendaring device comprises a calendaring support, a calendaring assembly and a second driving assembly, the calendaring support is located on one side of the wire guiding device, the calendaring assembly comprises a driving part and two calendaring rollers arranged in parallel, the driving part is used for driving one calendaring roller to rotate, and the second driving assembly is used for driving the two calendaring rollers to slide relatively; the measuring instrument is located on the side, away from the wire guiding device, of the calendering device and used for detecting the width of the flat-angle wire. The adjusting efficiency of the machining size can be improved.

The utility model provides a heating structure, which comprises at least one heating part, the heating part comprises a first clamping piece, a second clamping piece and a heating net, the first clamping piece and the second clamping piece are oppositely arranged at an interval, the heating net is clamped between the first clamping piece and the second clamping piece, and the first clamping piece, the heating net and the second clamping piece are fixed; a liquid inlet hole is formed in the position, corresponding to the heating net, of the second clamping piece, and a smoke outlet hole is formed in the position, corresponding to the heating net, of the first clamping piece. The heating net in the heating structure can keep certain tension and flatness all the time, and the heating net can be tightly attached to the porous base body, so that the atomization core has good atomization efficiency and atomization taste all the time, the problems of dry burning and the like are avoided, and the service life of the atomization core is prolonged. The utility model further provides an atomizing core.

The invention discloses a tension-adjustable winding packaging machine, and relates to the technical field of packaging machines, the tension-adjustable winding packaging machine comprises a winding packaging machine main body of a rectangular frame structure, and the top end of the winding packaging machine main body is rotatably connected with a turntable used for uniformly winding goods on a winding film through rotation; the left end of one side of the winding and packaging machine body is fixedly connected with an electric control box used for controlling various functions and parameter setting of the winding and packaging machine body, a film tightening and gap filling mechanism is arranged on the outer side of the winding arm, a double-face circle clamping mechanism is arranged below the rotating disc, a gap expanding and material uniformizing mechanism is arranged above the winding arm, and the rotating disc is arranged below the rotating disc. The stretching wheel and the ratchet plate are matched with each other, the wrapping film can be more tightly attached to a packaged object through the film tightening and gap filling mechanism, the gap between the film and the object is reduced, and therefore the compactness and stability of packaging are improved, the wrapping film is extruded inwards, the attaching process between the film and the object can be accelerated, and the time needed by packaging is shortened.

The utility model belongs to the technical field of medical treatment. The utility model discloses a vaginal wall measuring support plate for vaginal sacrum fixation under a gynecological laparoscope. The vaginal wall measuring support plate comprises a support plate body, the supporting plate body is of a structure which is wide in front and bent in rear and extends and narrows to be matched with a female vagina, and a handle is arranged at the narrowing end of the supporting plate body and used for medical staff to hold and operate the supporting plate body to support and open the vagina wall of a patient and keep the vagina flat and tension so that a doctor can conduct surgical operation conveniently. The top and the bottom of one side of the supporting plate body are each provided with a scale mark used for measuring the depth distance of the vagina in real time so that a doctor can select a proper fixing position and tension when operating the fixing mesh in an operation. The vaginal dilator has the advantages of being capable of supporting and opening the vaginal wall of a patient, keeping the vagina flat and tension and measuring the depth distance of the vagina in real time so as to facilitate operation of a doctor.

This invention relates to the field of photovoltaic cable manufacturing technology, specifically to a production device for photovoltaic cables, comprising a housing with outlet holes and several inlet holes on the side wall of the housing, and a take-up assembly and a pay-off assembly outside the housing; a fixed cylinder is fixedly connected inside the housing, and a rotating cylinder is sleeved on the outside of the fixed cylinder, with several wire-passing grooves on the side wall of the rotating cylinder; a first drive assembly is also provided inside the housing, and the first drive assembly is signal-connected to an intelligent system; a traction assembly is provided inside the rotating cylinder, and a limiting assembly is provided inside the fixed cylinder; a disc is fixedly connected to the rotating cylinder, and several wire-passing holes are provided on the disc, each wire-passing hole having a detection groove, and a detection block is slidably connected in each detection groove, with each detection block equipped with a pressure sensor. This invention, by designing a component capable of pre-paying wire to assist in pay-off, and combining it with a stranding force acquisition and analysis system, achieves control over pay-off tension and stranding force, improves the final conductivity of the conductor, and improves the overall quality of the produced cable.

The utility model relates to the field of blast furnace material transportation, and discloses a blast furnace pipe belt conveyor overturning control device which comprises a supporting plate, the supporting plate is arranged above a pipe belt conveyor body, a support is fixed to the bottom face of the supporting plate, a PLC is fixed to the right side of the outer wall of the support, the pipe belt conveyor body is arranged in the support, and the PLC is connected with the pipe belt conveyor body. The pipe belt machine body is electrically connected with a PLC, a plurality of U-shaped frames are fixed in the support, pressing wheels are rotatably arranged in two rotating holes respectively, and two proximity switches are fixed to the top face of the supporting plate. According to the utility model, when the belt of the pipe belt conveyor body tends to turn over, the pipe belt conveyor body can be stopped in time, so that the turning-over problem can be avoided, potential safety hazards caused by emergency disposal of a pipe belt conveyor body system can be avoided, material transportation and damage can be prevented from being influenced by the turning-over of the belt, and the workload of workers can be reduced.

The utility model discloses an automatic stranding device for a composite enameled wire, and relates to the technical field of enameled wire production. Comprising a pay-off assembly, a stranding assembly and a take-up assembly, a rotating disc is rotationally arranged in the pay-off assembly, and a plurality of pulley assemblies are evenly installed on one side of the rotating disc to compensate the tension state of a cable during stranding; the semicircular holes of the two wire stranding bottom plates in the wire stranding assembly form a circular hole, and a wire stranding cylinder is rotatably mounted in the hole; the take-up assembly is rotatably provided with a take-up wheel, and one side of the take-up wheel is provided with a cycloid mechanism for applying reciprocating transverse displacement to the stranded cable. A spring tensioning mechanism of the pulley assembly is adopted to achieve dynamic adjustment of cable tension, reciprocating motion of the cycloid rod is matched with rotation of the take-up wheel to achieve uniform winding of the cable, the pay-off / take-up wheel is rapidly replaced through the electromagnetic driver, and the replacement efficiency of the take-up wheel is remarkably improved.

The invention relates to the field of garment processing, and discloses an automatic processing device for flame-retardant anti-static garments, which comprises a composite preparation mechanism positioned on a working channel bin and matched with an input guide roller frame II for receiving and conveying cloth raw materials discharged by a raw material input mechanism; the raw material compounding mechanism is positioned on the working channel bin, and is matched with the soft blade for thermally compounding the flame-retardant raw material film and the cloth raw material; and the composite output mechanism is positioned on the working channel bin, is matched with the pressing movable roller and the guide belt group and is used for receiving and conveying the thermally compounded raw materials. After cloth passes through an input guide roller of the composite preparation mechanism, the cloth is extruded and dragged through pressing rollers which are arranged up and down, the tension and straightness of the cloth in the conveying process are kept, the high-quality treatment effect is ensured, a dragging linkage roller and a downward moving guide roller are comprehensively utilized for accurately guiding and dragging the cloth, and the cloth quality is improved. And the position and tension control of the cloth before the cloth enters the pressing process can be accurately managed.

The invention relates to the technical field of biological medicine, and discloses a ginseng composition for improving myocardial function as well as a preparation method and application thereof. The ginseng composition comprises the following components in parts by mass: 9-11 parts of a ginseng extract, 14-16 parts of astragalus membranaceus powder, 11-13 parts of spina date seed powder, 5-7 parts of earthworm protein powder, 5-7 parts of natto powder, 9-11 parts of radix ophiopogonis powder, 5-7 parts of schisandra chinensis powder, 9-11 parts of poria cocos powder, 5-7 parts of liquorice powder, 7-9 parts of polygala tenuifolia powder, 5-7 parts of rhizoma acori graminei powder and 9-11 parts of asparagus cochinchinensis powder. In the scheme, the ginseng extract is combined with the various traditional Chinese medicine components with the cardiovascular regulation function, and all the components generate a comprehensive regulation effect on the myocardial function through a synergistic effect; the ginseng composition can be prepared into capsules, tablets, pills, powder and oral liquid, and is convenient to eat.