14results about How to "Avoid uneven tension" patented technology

The internal spline gear grinding tool comprises a positioning seat, a rotating disc is arranged on the positioning seat, and the rotating disc is connected with a second driving mechanism for driving the rotating disc to rotate; a positioning disc is fixedly arranged on the upper surface of the rotating disc, and a hydraulic cavity is formed in the positioning disc and connected with a hydraulic system; a stepped hole is formed in the inner wall of the hydraulic cavity and comprises a first square hole and a second square hole, a sliding block is arranged in the second square hole and is in sliding fit with the inner wall of the second square hole, and an elastic sealing gasket is arranged between the sliding block and the hole bottom of the second square hole; the sliding block is fixedly connected with tensioning teeth, and the tensioning teeth penetrate through the first square hole and are in sliding fit with the inner wall of the first square hole. The hydraulic system is adopted for providing tensioning force for the tensioning teeth, manual operation is not needed, the operation difficulty is lowered, more labor is saved, the hydraulic system can provide the tensioning force large enough, and it is guaranteed that the internal spline gear is stably positioned.

The present invention discloses a constant tension winding machine for a braiding machine, which comprises a braiding machine, a winding roller is provided on the side of the braiding machine, and the winding roller is used to wind the braided product; winding discs are installed at both ends of the winding roller, and a fixed base plate is also installed on the side of the winding disc away from the winding roller, and a rotating and fixed diameter measuring mechanism is provided on the fixed base plate, and the rotating and fixed diameter measuring mechanism is used to measure the diameter of the braided product wound by the winding roller; the fixed base plate is arranged on the braiding machine. The present invention can accurately analyze the winding diameter of the product based on data from multiple places through the rotating and fixed diameter measuring mechanism, thereby avoiding the change of the constant tension controlled by the machine due to the inaccurate calculated winding diameter data and the deviation from the actual data during the winding process, thereby avoiding the uneven tension of the finished product during winding, and improving the winding effect of the machine.

The application relates to a cloth feeding device for a flame-retardant base cloth production tentering setting machine, and relates to the technical field of cloth processing, which comprises a bottom plate, a mounting seat is arranged above the bottom plate, a mounting frame is connected to the top surface of the mounting seat, a first motor is connected to one side of the mounting frame, a bidirectional screw rod is connected to the output end of the first motor, a moving block is threadedly connected to the outer wall of the bidirectional screw rod, a connecting rod is connected to the bottom surface of the moving block, a fixing seat is connected to the bottom surface of the connecting rod, a limiting mounting plate is arranged in the fixing seat, the device drives the bidirectional screw rod to rotate through the first motor, drives the two moving blocks to move towards or away from each other along the screw rod axis direction, further enables the fixing seat and the limiting mounting plate in the fixing seat to realize transverse movement, different-width cloths can be adapted, cloth deviation, wrinkles, sliding and other conditions caused by the fact that the base cloth width does not conform to the preset size of the limiting structure are avoided, and the cloth feeding efficiency is greatly improved.

The invention relates to the technical field of fabric treatment equipment, and particularly provides a coating device for processing a high-air-permeability and moisture-permeability microporous coating fabric. The coating device for processing the highly breathable and moisture permeable microporous coated fabric comprises a coating frame body assembly, a winder, a re-drying instrument, a pressurizing assembly, a hot rolling assembly and a guide soaking assembly. Multi-stage drying and temperature control adjustment are provided, milder and more uniform curing, shaping and drying processes are further realized, and a microporous structure with smaller pore diameter and thicker pore wall can be formed, so that the body strength of a coating film is directly improved, and meanwhile, an extremely thin compact'skin layer 'can be formed on the surface of the microporous coating fabric; the surface of the coating is smoother and more uniform, internal micropores are protected, the wear resistance and flatness of the fabric are remarkably improved, in addition, the compact degree of the skin layer can be accurately controlled, the skin layer is compact enough to improve the wear resistance, a proper porous structure is kept, and the air permeability and moisture permeability are guaranteed.

The utility model discloses an expanding and clamping mechanism, belongs to the field of centering and clamping tools of motor stators or cylindrical parts, and aims to reduce the risk of clamping deformation. Comprising expansion flaps, expansion flap retainers, a driving shaft and transition strip mounting bodies. The transition strip installation body is in a circular truncated cone shape. A plurality of slots are uniformly distributed in the circumferential direction of the transition strip mounting body; transition strips are inserted into the insertion grooves, and a clamping groove is formed between every two adjacent transition strips; arc surfaces are arranged on the outer sides of the expansion petals; the expansion petal driving assembly is coaxially and movably inserted into an inner cavity of the expansion petal retaining body in the vertical direction, the inner ends of the expansion petals penetrate through the guide grooves in the radial direction of the expansion petal retaining body and are inserted into the clamping grooves, the transition strips are inserted into the inclined grooves of the corresponding expansion petals along the two annular sides, and a sliding pair is formed between the expansion petals and the clamping grooves in the extending direction of the clamping grooves. The plurality of expansion petals move synchronously to expand the plurality of expansion petals outwards at the same time to center and clamp the stator from the inner side of the stator, and the outward acting force of each expansion petal is balanced, so that the centering and clamping are stable and reliable, and the risk of clamping deformation is avoided.

The utility model discloses a bidirectional extrusion self-centering tensioning device which comprises a main body, the right end of the main body is connected with a connecting flange, the connecting flange is connected with a positioning flange through a connecting bolt, the right end of the connecting flange is connected with a connecting shaft, the right end of the connecting shaft is connected with a fixed mandrel, and a key groove is formed in the fixed mandrel. A key groove is formed in the outer side of the fixed core shaft, a positioning key is arranged on the inner side of the key groove, a sliding core shaft is arranged on the outer side of the fixed core shaft in a sliding mode, a sliding groove is formed in the side wall of the inner circle of the sliding core shaft, the sliding groove is in sliding fit with the positioning key, and the outer surface of the sliding core shaft is two conical surfaces which are symmetrically arranged. And the tensioning force is more uniform.

The utility model discloses a carbon fiber wrap yarn twisting device, and relates to the technical field of twisting devices. The carbon fiber wrap yarn twisting device comprises a mounting table used for providing a stable mounting foundation and a supporting platform for all assemblies of the twisting device; the pay-off assembly is installed on the left side of the top of the installation table, and a yarn winding roller and two carbon fiber line winding rollers are movably installed on the pay-off assembly and used for paying off basic yarn and carbon fiber lines for wrapping correspondingly; the twisting assembly is fixed to the middle side of the top of the mounting table and effectively twists the yarn paid off by the paying-off assembly and the carbon fiber yarn, so that the carbon fiber yarn evenly wraps the outer side of the yarn; the take-up assembly is fixed to the right side of the top of the mounting table and used for orderly collecting and winding the carbon fiber coated yarn twisted by the twisting assembly; the yarn winding roller and the carbon fiber yarn winding roller synchronously pay off the yarn and the carbon fiber yarn through the pay-off assembly, and it is avoided that in the twisting process, the yarn winding roller and the carbon fiber yarn winding roller are pulled by the yarn and the carbon fiber yarn to rotate at will.

The invention discloses a winding method for plying continuous long fibers into twistless roving and a winder, and relates to the field of fiber plying, the method is characterized in that plied yarns are dispersed into a plurality of single-strand protofilaments to pass through a tension control system, and the winder comprises a yarn guide wheel, a yarn pressing roller, a tension roller, a yarn guide roller, a traverse unit and a winder head which are sequentially arranged; a first yarn dividing plate is arranged between the yarn guide wheel and the yarn pressing roller, a second yarn dividing plate is arranged between the second yarn guide wheel and the yarn arranging device, and a yarn collecting hole is formed between the second yarn dividing plate and the yarn arranging device. The first yarn splitting plate and the second yarn splitting plate are each provided with a yarn hole set, each yarn hole set is provided with a plurality of yarn splitting holes, the diameter of the yarn splitting holes in the first yarn splitting plate is matched with the diameter of the yarn splitting holes in the second yarn splitting plate, and the diameter of the yarn splitting holes is matched with the diameter of a single strand of protofilament. The length measuring device can effectively improve the length measuring accuracy of the plied yarn, improve the stress uniformity of all the protofilaments, reduce the draping degree of part of the plied yarn and the abrasion to the friction rubber skin, and comprehensively improve the winding quality.

The utility model relates to the technical field of tensioning devices, and discloses a paper machine flat filament dry net tensioning device which comprises a conveying device and a tension detection roller, first square bearing seats are fixedly connected to roller cores at the front end and the rear end of the tension detection roller in a sleeved mode, and tensioning grooves are formed in the middles of the front end and the rear end of the conveying device. The first square bearing seats penetrate through and are slidably connected into the tensioning grooves, the positions, close to the outer sides, of roller cores of the front end and the rear end of the tension detection roller are fixedly sleeved with second square bearing seats, the positions, on the left sides of the tensioning grooves, of the front end and the rear end of the conveying equipment are fixedly provided with rotating seats, and the rotating seats are fixedly sleeved with transmission levers. An adjusting groove is formed in the middle of each transmission lever. According to the device, the resolution ratio and the sensitivity of tension degree adjustment are improved, the separation efficiency can be remarkably improved through the separation roller, the defects of paper wrinkles, paper tearing and the like are reduced, the overall rigidity of a dry net is enhanced through multi-point limiting, and the form stability of the dry net under high-speed operation is ensured.

The utility model discloses a transverse shark tooth conveying device for spinning, which relates to the technical field of spinning and comprises an operating table, supporting frames are symmetrically and fixedly connected to the bottom of the operating table, an adjusting motor is fixedly connected to one side of the top of the operating table, and a winding mechanism is arranged at the top of the operating table. And the winding mechanism comprises a conveying assembly and a tensioning assembly, the conveying assembly and the tensioning assembly are used in cooperation, the conveying assembly comprises a fixing frame, the fixing frame is fixedly connected to one side of the top of the operation table, and a two-way lead screw is rotationally connected to the interior of the fixing frame. According to the transverse conveying shark tooth conveying device for spinning, the winding mechanism is arranged, full-process automatic operation of cloth from conveying, tension control, clamping, fixing and cutting to automatic winding is achieved, the problems that a traditional device is inconvenient to adjust, uneven in tension and the like are effectively solved, the efficiency and quality of spinning production are remarkably improved, and the production cost is reduced. The structure is simple, and the practicability is high.

The invention relates to a film sticking machine which comprises a base, an unwinding unit is arranged on the base, and the unwinding unit is used for placing and outputting a film body; the pressing unit is positioned on a film body output path of the unwinding unit and is used for pressing a film on a product; the cutting unit is positioned at the downstream of the pressing unit and is used for cutting the film; the jig unit is used for fixing a product, and the jig unit is located below a film body output path of the unwinding unit; the pressing unit moves relative to the jig unit in the film body output direction so that a film can be tightly attached to a product. The cutting unit moves in the direction perpendicular to the output direction of the film bodies after film pasting is completed so as to cut off the film bodies at the two ends of the jig unit. According to the semi-automatic film pasting machine, the modular design is adopted, semi-automation from film output, pressing and cutting is achieved, the film pasting efficiency is remarkably improved, the labor intensity of workers is reduced, adverse factors in the film pasting process can be avoided, and the film pasting effect is remarkably improved.

The utility model relates to the technical field of heat transfer printing film installation, and discloses a heat transfer printing film installation assembly which comprises a bearing plate, rubber gaskets are fixedly connected to the left side and the right side of the top of the bearing plate, and supports are fixedly connected to the front sides and the rear sides of the tops of the two rubber gaskets. The front end and the rear end of the right side of the top of the bearing plate are each fixedly connected with two second telescopic rods, and the output ends of the multiple second telescopic rods are each fixedly connected with a second mounting block. And rotating groove blocks are fixedly connected to the adjacent sides of the two supports on the left side, the two supports on the right side, the two mounting blocks II on the left side and the two mounting blocks II on the right side. According to the utility model, through the arrangement of the telescopic rod II, the shaft rod can flexibly stretch out and draw back up and down, and the motor II drives the shaft rod to rotate, so that the stable transmission of a material film is ensured, the tension uniformity of the material film is ensured, the deformation and wrinkling of a transfer pattern caused by non-uniform tension are avoided, the production efficiency is effectively improved, and the defective rate is reduced.

This invention discloses a drying system for printed and dyed fabrics. The invention relates to the field of printing and dyeing fabric drying technology and includes a steel frame and a control module. The steel frame has several staggered drying cylinders on its sidewalls. A moving mechanism is provided on the sidewall of the drying cylinder located on the fabric inlet side. The moving mechanism includes a moving stake for carrying a cleaning mechanism to move axially relative to the drying cylinder. The movement of the cleaning mechanism is achieved by a motor started by the control module. The cleaning mechanism includes a scraper, which has an X-shaped structure and is made of rubber. The side of the scraper closest to the drying cylinder is arc-shaped to conform to the surface of the drying cylinder. The scraper is used to clean the surface of the drying cylinder. This invention can trigger a deflection plate to momentarily deflect when the scraper moves to the end of its stroke, causing contaminants attached to the scraper surface to be quickly ejected. It has the characteristic of achieving efficient online removal of oil film on the surface of the drying cylinder without affecting the continuous operation of the equipment.