9results about How to "Proper tension" patented technology

The utility model discloses a transport mesh belt adjusting device which comprises a conveyor shell, a conveyor inner cavity is formed in the conveyor shell, a first electric telescopic rod is fixedly connected to the interior of the conveyor inner cavity, and the movable end of the first electric telescopic rod is fixedly connected with a driving cabinet and a transmission roller rotating seat. A supporting transmission roller is arranged on the side face of the driving cabinet, and a tension degree adjusting mechanism is arranged in the inner cavity of the conveyor. By adjusting the height and the pressure of the downward pressing tension roller, the conveying mesh belt can keep proper tension degree, stability in the conveying process is guaranteed, shaking and swinging are reduced, impact force and vibration in the downward pressing process are reduced through the spring buffering design, and therefore extra stress borne by the device and the conveying mesh belt is reduced, and the service life of the conveying mesh belt is prolonged. According to the utility model, the service life of the conveying net belt is prolonged, the conveying net belt is prevented from being excessively tightened to a certain extent through the supporting spring, the damage to equipment and the net belt is avoided, and meanwhile, proper tension is kept.

This utility model relates to the field of anti-tangling technology for nylon spinning winding, and discloses an anti-tangling nylon spinning winding device, including a winding box, and further including: a winding disc rotatably connected to the front side of the winding box; two take-up rollers rotatably connected to the front side of the winding disc for rotating and winding the nylon yarn; and a guiding mechanism disposed on the outer wall of the winding box for guiding the nylon yarn to be wound and wound onto the outer wall of the take-up rollers. This utility model guides the nylon yarn through multiple guide cylinders, ensuring that the nylon yarn maintains a straight path during winding, avoiding tangling and knotting. The guide rollers abut against the outer wall of the nylon yarn, and a return spring pushes the arc-shaped sleeve to move, further tightening the nylon yarn, ensuring stability during winding and effectively preventing tangling.

The utility model relates to the technical field of fertilizer conveying devices, and discloses a fertilizer conveying device of a chain type fertilizer smoothening machine, which comprises a chain type conveying belt, rotating shafts are rotatably connected to the interiors of the two ends of the chain type conveying belt, a supporting frame is rotatably connected to the surfaces of the rotating shafts, and an adjusting assembly is in threaded connection to the middle of the supporting frame. A supporting frame is slidably connected to the surface of the rotating shaft, two pushing assemblies are slidably connected to the bottom of the supporting frame, rotating rods are sleeved with the pushing assemblies, the adjusting assembly comprises a threaded rod in threaded connection to the middle of the supporting frame, and a rotating disc is fixedly connected to one end of the threaded rod. According to the fertilizer conveying device of the chain type fertilizer smoothening machine, by arranging the adjusting assembly, the effect of adjusting the tensioning degree of the chain type conveying belt is achieved, it is ensured that the chain type conveying belt is kept in a proper tensioning state in the running process, vibration and shaking are reduced, and therefore the conveying stability and accuracy are improved.

The utility model discloses a cable car structure for a fully-mechanized excavating machine, which belongs to the technical field of fully-mechanized excavating machines and comprises a fixed steel rail, a secondary belt conveyor slidably mounted at the top of one end of the fixed steel rail and a fixed pile fixedly mounted at the top of the other end of the fixed steel rail. The free end of the steel wire rope is connected to the other auxiliary roller in a wrapping mode and fixedly provided with a balancing weight in a hoisting mode, the balancing weight is in longitudinal friction contact with the outer wall of the fixing pile, a plurality of pulleys are connected to the steel wire rope between the supporting column and the fixing pile, and the bottom of each pulley is provided with a hanging wheel piece used for hanging a cable. The free end of the cable is connected with a second belt conveyor, electric telescopic rods are arranged on the opposite faces of the top ends of the supporting column and the fixed pile correspondingly, and push-pull rods used for pushing and pulling the pulleys to move on the steel wire rope to adjust the distance are arranged at the telescopic ends of the opposite sides of the two electric telescopic rods correspondingly.

The utility model discloses a PET (polyethylene terephthalate) film conveying and positioning device for transfer printing of household appliance glass panels, which comprises a frame, a conveying unit, a deviation rectifying device and a tensioning unit, the conveying unit comprises transmission rods rotatably mounted on two sides of the frame, conveying rollers are fixedly mounted on the transmission rods on two sides, a driving component is arranged between the transmission rods on two sides, and the conveying rollers are fixedly mounted on the transmission rods on two sides. The number of the deviation rectifying devices is two, the two deviation rectifying devices are arranged between the conveying rollers on the two sides, and the tensioning unit is arranged between the deviation rectifying devices on the two sides. Through the synergistic effect of the conveying unit, the deviation correcting device and the tensioning unit, stable conveying and precise positioning of the PET film for transfer printing of the household appliance glass panel are achieved, through the synergistic effect, the conveying stability of the PET film is improved, the position accuracy and the tensioning degree suitability of the PET film in the conveying process are guaranteed, and the conveying efficiency of the PET film is improved. Therefore, the transfer printing quality and the production efficiency are remarkably improved, and the defective rate caused by unstable conveying, deviation or improper tensioning of the PET film is effectively reduced.

The utility model relates to a polishing device, which belongs to the technical field of polishing devices and comprises a base, a frame fixed at the top of the base, two protective screens fixed on the inner top wall of the frame, a polishing mechanism mounted at the top of the base and used for polishing a casting, and a dust falling component mounted at the top of the base and used for falling dust, the grinding mechanism comprises a grinding assembly which is installed on the top of the base and achieves the grinding effect, and an adjusting assembly which is installed on the top of the base and used for adjusting the tension degree of the abrasive belt. According to the grinding device, the tensioning degree of the abrasive belt can be effectively adjusted according to the situation, so that the situation that the abrasive belt deviates due to the fact that the abrasive belt is too loose is effectively avoided, it is guaranteed that the abrasive belt is in proper tensioning force, the grinding quality can be improved, abrasion and the fault rate of the abrasive belt are reduced, meanwhile, dust falling treatment can be conducted, and the grinding efficiency is improved. And therefore, dust generated by grinding is effectively prevented from flying in air, and the practicability of the grinding device is improved.

The application relates to a linear conveying mechanism and a mechanical arm. Two ends of a fixing belt are fixed between a pre-tightening piece and a pressing piece, so that the fixing belt can be kept in proper tension, and then the fixing belt can be attached to a shell and block the opening of a first slot. When the linear output unit moves along the conveying direction, at least one moving piece moves synchronously and is always pressed on the fixing belt. Regardless of the position of the linear output unit, the pressing state of the moving piece and the fixing belt can ensure that the opening of the first slot is closed by the fixing belt, and the sealing effect of the first slot is guaranteed. Dust, impurities and liquid from the outside are prevented from entering the inside of the linear conveying mechanism, the wear of internal parts is reduced, the problems of poor movement or precision reduction caused by impurities entering are avoided, electrical element short circuit caused by liquid invasion is prevented, and the service life of the linear conveying mechanism is prolonged. The cleanliness of the surgical environment is further ensured, and the risk of patient surgical infection is reduced.

The utility model relates to rigging loom equipment technical field and disclose a kind of rigging loom device convenient to reel, comprising: loom body and base, the reel mechanism for quick reeling loom body, the tensioning mechanism for adjusting the tensioning degree of loom body and the guide mechanism for limiting the trend of loom body when reeling are respectively provided on the base.This rigging loom device convenient to reel, through the reeling of loom body by setting reel mechanism and guide mechanism, wherein reel motor is driven reel shaft and reel drum rotation by synchronous pulley group synchronous belt to reel, realize the automatic reeling of loom body, improve the reeling efficiency, reduce manual labor intensity, and before loom body is wound on reel drum, after the limiting guide of upper guide roller and lower guide roller, it can prevent the situation that loom body winding is disorderly and affects work efficiency, further improve the work efficiency of overall structure.

The invention relates to the technical field of automatic equipment and breeding, and discloses a henhouse cleaning robot control system comprising a cleaning robot used for moving along a preset path in a henhouse to perform automatic cleaning operation; the high-pressure cleaning machine is used for providing a high-pressure water source and is connected to the cleaning robot through a high-pressure water pipe; the control module is used for integrally coordinating and controlling various functions of the cleaning robot, including moving, cleaning, navigation and pipe reeling operation; the function module is used for realizing control and execution of specific operation functions; the invention further discloses a control method of the henhouse cleaning robot. By adopting the cleaning robot and the high-pressure cleaning machine, high automation of the chicken coop cleaning process is achieved, comprehensive cleaning of the chicken coop can be completed according to a preset path and steps, and the burden of manual operation is greatly reduced.