12results about How to "Consistent tension" patented technology

The utility model provides a kind of pulling device for endoscopic surgery, it includes connecting piece, and multiple pulling rings fixed on the connecting piece, multiple the pulling ring is sequentially spaced along the length direction of the connecting piece, and the intersection of adjacent two the pulling ring and the included angle is 72 °-120 °;The material of the connecting piece is inelastic material, and the material of the pulling ring is elastic material.The pulling ring of the present application is suitable for endoscopic dissection surgery, cooperates tissue clamp, according to different needs, pulls open mucosa, improves surgical field of view, and the number of tissue clamp can be reduced, the operation time is reduced, and the operation cost is saved.

The utility model discloses a vacuum box sampler of accurate control flow belongs to gas sampling technical field, including vacuum box, the inside bottom wall fixed mounting of vacuum box has extrusion subassembly, one side of vacuum box is provided with round slot, the inside fixed connection of round slot has air inlet component, through setting extrusion subassembly, make the clamping plate relative movement to the gas bag is clamped, and utilize pressure sensor monitoring the tension of gas bag expansion time to dynamic adjustment clamping plate extrusion force to gas bag, can ensure that the tension that gas bag produced in the inflation process keeps consistent, guarantees the stability of gas flow, and then improves the accuracy and reliability of sampling process to effectively avoid the gas flow fluctuation caused by gas bag tension change, ensure that the real reflection of sampling result, through setting up air inlet component, rotates first connecting head and can realize its quick separation with second connecting head, and the operation is simple and convenient, and the use is convenient.

This invention provides a multi-head steel strip winding control system, including a main channel with multiple winding stations equipped with winding wheels along its length. The steel strip moves along the main channel, arranged from the outside to the inside and sequentially wound onto the winding wheels at each winding station. A redundant steel strip detection unit detects the amount of steel strip redundancy. When the redundancy exceeds a maximum redundancy threshold, the winding wheel speed is increased until the redundancy falls below a minimum redundancy threshold, at which point the speed is reduced back to the initial speed. As the steel strip passes through the main channel, it is wound directly onto multiple winding wheels in an outward-to-inward sequence, eliminating the need for rewinding via a rewinding machine and then rewinding via a layer winding machine, thus shortening production steps. Simultaneously, it keeps the steel strip in a relaxed state during winding, preventing excessively long redundant steel strips from drooping and contacting the ground, which could cause multiple narrow steel strips to knot or rub against the ground, affecting continuous production and product quality.

This utility model relates to the field of cotton yarn cradle technology, specifically to a cotton yarn cradle pressure adjustment module, including a module support base and an outer cotton yarn ring. A shaft is rotatably connected inside the module support base, and a first motor is fixedly connected inside the shaft. A rotating shaft is fixedly connected to the output end of the first motor. Multiple limiting grooves are formed on the outer surface of the rotating shaft, and a limiting rod is fixedly connected inside each limiting groove. A slider is slidably connected to the outer surface of the limiting rod. This utility model, by incorporating a first motor, causes the rotating shaft to rotate inside the shaft, thereby driving the slider to slide within the limiting groove. The sliding trajectory determines the distance between the inner cotton yarn rings. Adjusting the distance between the inner cotton yarn rings determines the tension of the cotton yarn, ensuring stable tension during the spinning process. The cradle, through the application of adjusting force, ensures consistent cotton yarn tension, thus achieving pressure adjustment and guaranteeing processing efficiency.

The invention discloses a knitted fabric heat-setting machine which comprises a rack, an unwinding device, a winding device, a steam humidifying assembly, a drying assembly and a fabric flattening device, the unwinding device and the winding device are arranged on the two sides of the rack, a partition plate is arranged in the rack, and an inner cavity of the rack is divided into a humidifying cavity and a drying cavity by the partition plate; the steam humidifying assemblies and the drying assemblies are located in the humidifying cavity and the drying cavity correspondingly, the number of the steam humidifying assemblies is two, and the two steam humidifying assemblies and the two drying assemblies are located on the upper side and the lower side of the knitted fabric. The first needling rod and the second needling rod apply tension to knitted fabric conveyed in the rack to straighten and flatten the knitted fabric, then the knitted fabric is dried and shaped through the drying assembly, wrinkles of the knitted fabric can be eliminated, and meanwhile the size of the shaped knitted fabric can be more stable.

The invention relates to the technical field of textile fabric detection, in particular to a defect detection device for textile fabric processing, which comprises a rack, a first conveying roller assembly and a second conveying roller assembly, the first conveying roller assembly comprises a first top conveying piece rotationally arranged at the top of the rack and a first bottom conveying piece rotationally arranged at the bottom of the first top conveying piece. The second conveying roller assembly can slide along the rack and is matched with the linkage control of the elastic supporting piece, the photoelectric proximity switch and the metal plate induction piece, the fabric tension degree can be automatically adjusted, the moving speed of the fabric is kept consistent with the rotating speed of the conveying rollers through the transmission fit of the driving motor and the conveying rollers, and the fabric tension degree can be automatically adjusted. The fabric between the first conveying roller set and the second conveying roller set is always in a proper tensioning state, wrinkles caused by fabric looseness are avoided, and the defect detection accuracy is further improved.

The utility model relates to the field of roller shutter accessories, in particular to an elastic positioning structure of a roller shutter rope, which is characterized by comprising two springs, two rolling guide bodies and two positioning ropes, the two rolling guide bodies are arranged side by side left and right, and the two springs are respectively and transversely arranged above the two rolling guide bodies; one end of one positioning rope is connected to one end of the spring on the left side; and one end of the other positioning rope is connected to one end of the spring on the right side. The two positioning ropes can realize elastic buffering, so that the roller shutter can lift and slide lightly, the tightness of the positioning ropes is very reasonable, the tensioning forces of the two positioning ropes are consistent, the conditions of deviation and displacement during lifting of the roller shutter can be avoided, and the service life of the roller shutter is prolonged. The device has the advantages of being good in synchronism, convenient to operate, less in jamming and the like.

This invention relates to the field of swivel folding structure technology, and discloses a swivel folding structure and an electric bicycle. The swivel folding structure of this invention includes a frame assembly and a rotating assembly. The lower end of the frame assembly is provided with a rotating seat, a first connecting shaft, and a first wheel. The rotating assembly includes a connector, a second connecting shaft, a hub, a second wheel, and a belt. The connector has a first bushing and a locking mechanism at both ends. The first bushing is rotatably connected to the outside of the rotating seat. The rotating assembly can rotate along the first connecting shaft to fold or unfold the electric bicycle. This invention solves the problem of belt slippage during folding by allowing the rotating assembly to rotate and fold along the first connecting shaft, maintaining consistent belt tension, thus improving folding reliability and user experience.

The utility model relates to the technical field of medical instruments, in particular to a wound stitching instrument which comprises a shell, a first hole is formed in the lower end of the rear portion of the shell, a second hole is formed in the lower end of the front portion of the shell, and a first rotating shaft is arranged in the middle of the inner side of the shell. The percussion handle penetrates through the hole to be arranged on the inner side of the shell, and the percussion handle is rotationally connected with the first rotating shaft; the propelling unit is arranged at the front part in the shell; the tightening unit comprises two fastening parts and a tightening part, the fastening parts are arranged below the propelling unit, sliding grooves are formed in the inner sides of the fastening parts, the bottom walls of the sliding grooves are inclined, sliding rods are arranged in the sliding grooves, the other ends of the sliding rods are fixedly connected with the percussion handle, the tightening part is arranged on the outer side of the shell, and the tightening part is arranged on one side of the percussion handle; by means of the arrangement of the tightening unit, skin and flesh on the two sides of a wound can be tightened, and the suturing effect of the suturing nail is improved.

This utility model discloses a fabric tensioning mechanism, relating to the field of fabric production machinery. It includes a tensioning roller rotatably connected to one end of a swing arm, the other end of which is rotatably connected to a frame. The frame is equipped with a first pushing member and a second pushing member. The first pushing member is rotatably connected to the swing arm, and the second pushing member is connected to the other end of the swing arm. The first and second pushing members push the swing arm to rotate about the frame. This application has the advantage of higher precision during actual adjustment.

The application relates to a tension adjusting mechanism for a warping machine, which comprises a support plate, three tension wheels and an adjusting device, the three tension wheels are distributed in an equilateral triangle, the tension wheels are connected to the end surface of the support plate in a sliding mode close to or away from the circumcenter of the equilateral triangle, and the adjusting device is used for simultaneously changing the size of the equilateral triangle formed by the three tension wheels, and yarns pass through the three tension wheels in sequence. The application has the effect of reducing the slippage friction of the warp yarns relative to the tension wheels, thereby improving the quality of the warp yarns.

The utility model relates to the technical field of fabric winding, and discloses a double-sided yoga fabric production winding device capable of automatically rectifying deviation, which comprises two groups of fixed tables, a feeding roller and a driving roller are rotatably mounted between the head ends of the two groups of fixed tables, and a compression roller matched with the driving roller is rotatably mounted in each fixed table. Adjustable winding rods are arranged at the tail ends of the two fixing tables, position sensing assemblies are arranged on the upper surfaces, located between the driving roller and the winding rods, of the two fixing tables, and a first extending table and a second extending table are fixedly installed at the tail ends of the two fixing tables correspondingly. According to the device, the inclination angle of the winding rod is directly adjusted through the fourth electric telescopic rod in the driving assembly, so that the winding rod can be adaptively adjusted according to the deviation angle of the conveyed fabric, the deviation correction response speed of the device is high when the device is used, and it is guaranteed that the two ends of the wound fabric coiled material are aligned.