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8results about How to "Realize automatic tensioning" patented technology
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A membrane structure prestressed graded tensioning device
This utility model relates to the field of building construction and discloses a prestressed graded tensioning device for membrane structures. It includes a main rod, with a tensioning mechanism installed on the upper part of the main rod. The tensioning mechanism includes a fixing component, which includes a vertical plate. Two sliding grooves are formed on the front side of the vertical plate, and two clamping plates are also provided on the front side of the vertical plate. Sliding blocks are fixedly connected to the rear sides of both clamping plates, and the sliding blocks are slidably connected to the clamping plates. An electric telescopic rod is fixedly connected to the rear side of the vertical plate, with its output end penetrating through and movably connected to the vertical plate. A connecting block is fixedly connected to the front side of the output end of the electric telescopic rod. In this utility model, by setting up the cooperation between the fixing component and the moving component, the device can achieve both fixing and automatic tensioning during membrane structure installation, making operation more convenient and faster, saving manpower, and making it more practical.
Owner:CHINA CONSTR FIRST GRP SOUTHCHINA CORP CO LTD GUANGDONG PROVINCE +1
Automatic ribbon tension adjustment device for printers
ActiveCN224276668URealize automatic tensioningImprove printing qualityInking apparatusComputer printingStructural engineering
Owner:SHANGHAI XIHONG MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
An airtightness testing device for packaging materials
ActiveCN224707640UUniform tensile forceRealize automatic tensioning
This utility model relates to an airtightness testing device for packaging materials, which includes a fixed frame, an upper housing, a lower housing, an upper cavity, a lower cavity, and a lifting assembly. The upper housing is connected above the lower housing through the fixed frame, and the lower cavity is fixed on the lower housing. The lifting assembly is disposed on the upper housing and drives the upper cavity to move linearly in the vertical direction. The upper cavity includes a first detection plate, a first detection chamber, an inflation tube, an annular elastic airbag, a connecting flange, and a connecting pipe. The lower cavity includes a second detection plate and a second detection chamber. The lifting assembly drives the upper cavity to descend. When the first and second detection plates are in contact, the annular elastic airbag is precisely embedded in the annular groove of the second detection plate. During the expansion of the airbag, it expands outward along the inclined surface of the annular groove. The radial force generated by the expansion of the airbag acts on the edge of the film. Combined with the guiding effect of the inclined surface, the film is subjected to a uniform tensile force in the horizontal direction, achieving automatic tensioning and simultaneously providing a sealing effect.
Owner:WUXI TONGCHENG PACKAGING PROD CO LTD
A latex glove production line chain positioning device
ActiveCN224393673UImprove stabilityRealize automatic tensioningConveyorsLatex gloveControl engineering
The application relates to the technical field of latex glove production, and discloses a chain positioning device for a latex glove production line, which comprises limiting groups, multiple groups of which are arranged at intervals along the extension direction of a chain, each group of the limiting groups comprises two limiting seats connected to opposite sides of the chain respectively, and baffles are arranged at two positions, the two baffles are connected to opposite ends of a chain wheel respectively, and a limiting space is formed between the two baffles; when the chain passes through the chain wheel, the side of the limiting seat close to the chain wheel is located in the limiting space, so that the chain is prevented from moving axially and disengaging from the chain wheel. The application can improve the stability of chain transmission.
Owner:FUJIAN YUANXIN SAFETY PROTECTION TECH CO LTD
A pipe stranding machine for processing crosslinked polyethylene cloth wire
PendingCN122158269AFast clampingImplement automatic lockingCable/conductor manufactureElectric machineControl engineering
The application discloses a pipe stranding machine for cross-linked polyethylene cloth electric wire processing and relates to the technical field of pipe stranding machines.The pipe stranding machine comprises a bottom plate, a vertical plate fixed to the upper end face of the bottom plate, a limiting seat fixed to the bottom plate, a motor fixed to the limiting seat, and a stranding cage body connected with the limiting seat.The positioning mechanism drives the limiting seat to move through a first air cylinder, the distance between the two limiting seats can be quickly adjusted, the pay-off reel can be quickly clamped and fixed, manual accurate calibration is not needed, the operation process is greatly simplified, the installation time is shortened, and simultaneously, the limiting seat moves in the process, synchronously driving the sliding rod, the cylinder and the clamping block to move, the clamping block is matched with the clamping toothed plate in the stranding cage body through the elastic force of the first spring, the stranding cage body is automatically locked, the safety hidden danger caused by the misstart of the stranding cage body during the installation of the pay-off reel is effectively avoided, and the safety of the equipment use is remarkably improved.
Owner:HUBEI HENGTAI WIRE & CABLE
Wind protection device for a hoisting machine
ActiveCN115594088BRealize automatic tensioningEffectively absorb instantaneous external force impact
The application relates to a windproof device of a hoisting machine, which comprises a connecting module and a hydraulic module for reducing wind force, the hydraulic module is connected with the hoisting machine and the ground through the connecting module, the hydraulic module comprises a hydraulic cylinder and an accumulator, an oil tank and a first stop valve are connected with the hydraulic cylinder, the hydraulic cylinder, the first stop valve and the accumulator are sequentially connected, the connecting module comprises a first connecting block, a second connecting block, a ground connecting block and a door leg connecting block, the first connecting block and the second connecting block are connected with the hydraulic cylinder respectively, the ground connecting block is connected with the first connecting block, and the door leg connecting block is connected with the second connecting block. Compared with the prior art, the reliability of the windproof device is greatly improved.
Owner:SHANGHAI SPECIAL EQUIPMENT SUPERVISION & INSPECTION TECHNOLOGY RESEARCH INSTITUTE CO LTD
Swivel spindle and consumable placement device
ActiveCN224617016UImplement rotation functionRealize automatic tensioning
This utility model discloses a rotating shaft and a filament placement device, relating to the field of 3D printing technology. The rotating shaft includes a fixed component, a rotating component, and an elastic component. At least a portion of the rotating component is sleeved within the fixed component, and the rotating component is rotatable relative to the fixed component. The elastic component is disposed between the fixed component and the rotating component, with one end connected to the rotating component and the other end abutting against the fixed component. When the rotating component rotates relative to the fixed component, it drives the elastic component to move, causing the elastic component to deform. The technical solution provided by this utility model aims to enable the rotating shaft to rotate automatically, so that the returned filament can be wound onto the material tray, and the filament can maintain tension.
Owner:SHENZHEN CREALITY 3D TECH CO LTD
Lifting system for barrel with gradually-changed thickness
The invention discloses a lifting system for a barrel with gradually-changed thickness, relates to the technical field of hoisting, and is used for solving the problems that the gravity center position of a cantilever of a crane cannot be adjusted, and the crane is inclined or shaken due to gravity center shift in the lifting process in the prior art. The lifting device comprises a support, a cantilever and a lifting frame, the cantilever is arranged on the support, the lifting frame is arranged at the end of the cantilever, the lifting frame is used for being connected with a cylindrical component, and the cylindrical component is lifted through the cantilever. The cross arm slides in the sliding sleeve, so that the horizontal positions of the hanging bracket, the cylindrical parts and the balancing weights relative to the support can be changed, the gravity center position of the whole system is adjusted, the gravity center positions of the hanging bracket and the cylindrical parts of different specifications are balanced with the balancing weights, and inclination or shaking caused by gravity center shifting in the lifting process is reduced.
Owner:BEIJING HANGXING MACHINERY MFG CO LTD