24results about How to "Small tension" patented technology

The invention relates to the field of descaling technologies, in particular to a variable-frequency electromagnetic-resistance descaling device which comprises a descaling device body. The electromagnetic coil comprises a first cable used for being wound to the outer side of the pipeline side by side; the fixing assemblies are arranged on the outer side wall of the pipeline, and one fixing assembly is arranged on each of the two sides of each electromagnetic coil and used for fixing the positions of the electromagnetic coils; the supporting seat is arranged on one side of the electromagnetic coil and connected to the fixing assembly; the telescopic tensioning mechanism is arranged between the first cable and the supporting base and used for being connected with the first cable and automatically exerting pulling force on the first cable to conduct tensioning treatment so that the first cable can be tightly attached to the side wall of the pipeline. The device has the effects that the cable wound on the side wall of the pipeline generates adaptive change after being influenced by temperature, the intensity of an electromagnetic field generated by the electromagnetic coil is kept uniform, the effect of removing a scale layer is enhanced, the energy consumption and the cost are reduced, and the operation stability of the descaling device is improved.

The utility model discloses a yarn guide frame not easy to snap yarns, which belongs to the technical field of yarn guide frames, and comprises a base plate, the front side wall of the base plate is fixedly connected with a concave shell, a height adjusting mechanism is arranged in the concave shell, the rear side walls of the two vertical ends of the concave shell are respectively provided with a sliding opening, and the height adjusting mechanism is arranged in the sliding opening. The two ends of the height adjusting mechanism penetrate through the two sliding openings correspondingly and are rotationally connected with godets, two sliding supporting mechanisms are fixedly connected to the rear end of the upper side wall of the base plate, and one ends of the two sliding supporting mechanisms are rotationally connected with the two godets correspondingly. According to the utility model, the height of the two godets can be synchronously adjusted by arranging the height adjusting mechanism, the adjustment is convenient, the tension degree adjusting range is wider, the applicability is higher, the anti-breaking protection effect on yarns is better, and the pressure borne by the tension roller can be buffered and weakened by arranging the elasticity adjusting mechanism, so that the tension borne by the yarns is reduced, and the service life of the yarns is prolonged. The yarn breakage is further prevented.

The invention discloses an intelligent denting device for yarn-dyed warp yarns. The intelligent denting device comprises a mounting frame; a warp yarn position adjusting mechanism, a heald frame and a reed moving mechanism are mounted on the mounting rack; a warp yarn clamping mechanism is mounted on the warp yarn position adjusting mechanism; the warp yarn clamping mechanism is used for clamping warp yarns; the warp yarn position adjusting mechanism is used for adjusting the positions of warp yarns; the reed passing mechanism is used for driving warp yarns on the warp yarn clamping mechanism to pass through the heald frame; through the warp yarn clamping mechanism, the warp yarn position adjusting mechanism and the reed passing mechanism, the reeding process can be automatically completed, and the working efficiency is improved; meanwhile, the detection mechanism is arranged on the reed moving mechanism, so that the warp hooking accuracy of the crochet hook can be improved, and the color of the hooked warp can be judged.

Provided is an aqueous working fluid containing compound (A) represented by the following general formula (a-1) and having a weight average molecular weight of 12,000 or less, and water-insoluble compound (B) having a polyoxyalkylene group, wherein the aqueous working fluid has a viscosity at 25°C of 4.0 to 20.0 mPa·s: wherein A is an alkylene group having 2 to 4 carbon atoms, and when there is a plurality of A, the plurality of A may be the same or different; and m is an integer of 1 or more.

The application discloses an adjustable pulling mechanism of a warp knitting machine and relates to the technical field of warp knitting machines. The adjustable pulling mechanism of the warp knitting machine comprises a device main body, the device main body comprises a warp knitting machine body, the device main body further comprises a mounting frame, two groups of pulling rollers connected with the mounting frame and two tensioning rollers arranged between the two groups of pulling rollers, the device main body further comprises two rotating discs, a rotating shaft connected between the rotating discs and the mounting frame and a constant force driving rotary motion mechanism for driving the rotating shaft to rotate. The adjustable pulling mechanism of the warp knitting machine is convenient for tensioning operation of grey cloth produced by the warp knitting machine, can guarantee the constancy of tensioning force, is convenient for adjusting the size of the tensioning force according to use requirements, is more suitable, is more convenient and fast, guarantees the effect of tensioning, is convenient for deviation rectifying operation of the grey cloth, guarantees the effect of pulling and further guarantees the production quality of the grey cloth.

The present application relates to automatic production line technical field, more specifically, it relates to a kind of transition conveying mechanism for production line, including roller conveyor and conveyor belt conveyor, roller conveyor is connected with lifting control device, conveyor belt conveyor includes conveyor body, adaptive lifting platform and base, conveyor body is set on adaptive lifting platform, multiple sets of elastic bearing assemblies are arranged between adaptive lifting platform and base, elastic bearing assembly is based on the weight of material in real time and adaptively compressed, conveyor belt conveyor further includes tension adjusting assembly, tension adjusting assembly is set on adaptive lifting platform, the tension provided by tension adjusting assembly is negatively correlated with the change of the height difference of adaptive lifting platform and base, the present application solves the problem that the conveyor belt conveyor of transition conveying mechanism is easily caused by the impact when facing material from high to low, and realizes the effect that the tension of conveying belt is adaptively changed with the weight of material.

The utility model discloses a film winding mechanism in the technical field of film winding, which comprises a base, a square groove is arranged on the base, two sliders are movably mounted in the square groove, a vertical plate and a hydraulic cylinder are respectively and fixedly mounted at the tops of the two sliders, a driving motor is fixedly mounted on the vertical plate, and the hydraulic cylinder is fixedly mounted on the driving motor. And an output shaft of the driving motor is connected with a rotating shaft through a coupling. Through the arrangement of the circular shaft, the connecting rod, the auxiliary roller and the rotating assembly, in the using process, a film is wound around the winding roller installed on the rotating shaft after passing through the bottom of the auxiliary roller, and when a worker needs to adjust the height of the auxiliary roller to reduce the tension force, the circular shaft can be rotated through the rotating assembly; and therefore, the connecting rod can drive the auxiliary roller to rotate, the height of the auxiliary roller can be adjusted, adjustment of tensile force is achieved, different winding requirements are met, the situation that a thin film is pulled and deformed due to too large tensile force is avoided, and the winding quality is improved.

The utility model relates to the technical field of medical instruments, and discloses a mammary gland postoperative improved pectoral girdle which comprises a pectoral girdle body and shoulder girdles, two shoulder girdle fixing bundles are arranged on the side edge of the pectoral girdle body, the shoulder girdles which can be pulled out of the shoulder girdle fixing bundles to extend are arranged in the shoulder girdle fixing bundles, and pectoral girdle hook-and-loop fasteners are arranged on the left side edge and the right side edge of the pectoral girdle body respectively. Inclined magic tapes which are bilaterally symmetrical are respectively arranged on the outer surface of the chest strap, shoulder strap magic tapes are arranged at the upper parts of the shoulder straps, air holes which are uniformly distributed are formed in a main body of the chest strap, and a back decompression air bag, a side decompression air bag and a bottom decompression air bag are respectively arranged on the upper side and the lower side of the chest strap. The pressure injury of the chest strap to the skin of a patient is reduced, and the workload of nurses is reduced; the shoulder straps are prevented from slipping off through double fixation, the most suitable tightening degree can be selected according to different patients, and the wearing comfort of the patients is enhanced.

The invention discloses a bridge crane lifting mechanism, and relates to the field of bridge cranes, the bridge crane lifting mechanism comprises a crane carriage, the outer side of the crane carriage is matched with two bridge frames, the two bridge frames are arranged in a bilateral symmetry mode with the center line of the crane carriage as the symmetry axis, and the outer sides of the two bridge frames are provided with two connecting blocks; the two connecting blocks are symmetrically arranged front and back with the center line of the crane carriage as the symmetry axis, a plurality of moving rollers are arranged on the outer sides of the connecting blocks, rails are arranged at the bottoms of the moving rollers on each side, the two rails are connected with a plant structure, and a protective cover is arranged at the top of the crane carriage. A hoisting assembly is arranged in the protection cover, a winding roller is arranged at the top of the hoisting assembly, a vertical plate is arranged on the rear side of the protection cover, and a wire coiling assembly is arranged on the rear side of the vertical plate. According to the hoisting device, through cooperation of the opening assembly and the adjusting assembly, fine adjustment of the height and the position of the hoisting hook can be completed, and the hoisting efficiency is improved; the burden of workers is relieved.

The utility model discloses a kind of marine radioactive buoy data monitors, including main buoy, monitoring equipment, main cable II, anchor chain, auxiliary buoy, elastic connecting assembly;Main buoy bottom is equipped with main cable I, and main cable I top end and middle segment are vertically distributed as monitoring section, and monitoring equipment is connected in main cable I middle segment, and main cable I end is connected with the top end of main cable II through elastic connecting assembly, and the end of main cable II is connected with anchor chain through elastic connecting assembly, and anchor chain end is equipped with anchor, auxiliary buoy is located in main buoy side, auxiliary buoy bottom is equipped with auxiliary cable, and auxiliary cable end is connected with the top end of main cable II through elastic connecting assembly, and auxiliary buoy is equipped with winding mechanism, and auxiliary cable top end is connected on winding mechanism.The utility model greatly improves the impact capacity of device whole sea bottom undercurrent and wind and wave resistance, reduces the risk of cable break.

This application relates to a pre-assembly / disassembly device for large synchronous chain plates, comprising a steel frame with two steel beams slidably connected to it. Each steel beam is equipped with a gripper, and multiple grippers are arranged along the length of the steel beams. A driving component is provided between the two steel beams to move them closer together or further apart. This application effectively reduces the tension between the chain shaft and the chain, thereby improving the pre-assembly / disassembly preparation efficiency for large synchronous chain plates.

The utility model discloses a cutting mechanism for communication cable production, and relates to the technical field of communication cable production. The cutting mechanism for communication cable production comprises a workbench, a rotating shaft is arranged on the workbench, a conveying wheel is fixedly connected to the rotating shaft, a cutting table is fixedly connected to the workbench, a fixing box is fixedly connected to the upper surface of the cutting table, a hydraulic rod is fixedly connected into the fixing box, and a cable pressing box is arranged at the output end of the hydraulic rod. A cutting assembly is arranged between the hydraulic rod and the wire pressing box, the cutting assembly comprises a cavity and a blade base, the cavity is formed in the wire pressing box, the blade base is fixedly connected to the lower surface of the hydraulic rod, and a cutter body is clamped in the blade base. According to the cutting mechanism for communication cable production, the cutting assembly is adopted to cut the cable, the cutting assembly effectively reduces the internal tension of the cable, and the flatness of the section of the cut cable is guaranteed.

The present invention belongs to the field of conveying technology, specifically to the field of tensioning, and more particularly to a high-toughness polyetheretherketone medical catheter winding device and a working method, comprising: a winding device and a tensioning device; the tensioning device is arranged before the winding device, and the catheter is wound up by the winding device after passing through the tensioning device; wherein the tensioning device comprises: a rotating mechanism; the rotating mechanism is rotatably arranged on a support frame, and the catheter is wound up by the winding device after passing through the rotating mechanism, and the winding position of the winding device is lower than the position where the catheter passes through the rotating mechanism, and the rotating mechanism rotates during the winding process, so that the position where the catheter passes through the rotating mechanism is gradually lowered; it is achieved that during the winding process, as the number of wound catheter layers increases, the rotating mechanism rotates accordingly, and the position where the catheter passes through the rotating mechanism is lowered, so as to reduce the tension on the catheter, avoid excessive pulling force on the catheter due to the increase in the number of winding layers, and thus avoid deformation and damage of the catheter.

The present invention discloses an ultra-high square resistance non-contact coating optical measurement system, which specifically relates to the field of coating measurement technology, including a coating machine, the coating machine including a support part, one side of the support part is fixedly connected to a mounting plate through a plurality of support columns, and a winding part and a square resistance measurement mechanism are arranged between the support part and the mounting plate. The present invention is provided with a tensioning mechanism, when the coating traction speed is accelerated, the rotation speed of the first limit roller will be synchronously accelerated, the air intake and the air outlet of the air inlet and the air outlet will be synchronously increased, the air pressure in the sealing chamber will be increased, and the tensioning roller will increase the distance between the first limit roller under the synchronous action of the increased air pressure and the traction force, reduce the tensioning force on the coating, avoid the traction speed being too fast to increase the friction between the coating and the roller, so that the tensioning force can be adaptively adjusted according to the traction speed of the coating, prevent the coating material from being torn or overstretched, and improve the uniformity and measurement accuracy of the coating.

The invention provides a cigarette making machine tipping paper curling strength control device and method.The device comprises a driving part, a guide roller, a mounting frame and a controller, the mounting frame is arranged on the upstream of a scraper, and a sliding block is arranged at one end of the mounting frame in an up-down sliding mode; the guide roller is arranged on the sliding block, the guide roller is used for making contact with tipping paper, and the driving piece is used for driving the sliding block to move up and down; the driving piece is electrically connected with the controller, and the controller is electrically connected with a splicing head detection device of the cigarette making machine. According to the invention, the latex adhesiveness of the adhesive surface of the tipping paper can be improved, and the tipping paper can be prevented from being broken.

This utility model discloses a support structure for a plate chain, including a support frame. A set of rotating rods is rotatably mounted through both ends of the inner side of the support frame. A drive wheel is fixedly fitted in the middle of the two sets of rotating rods. A plate chain for conveying is mounted on the outer sides of the four sets of drive wheels through a common transmission engagement. An adjustment component for controlling the tension of the plate chain is installed inside the support frame. By adjusting the tension of the plate chain, when the tension is reduced, an electric actuator drives a moving plate downwards. Simultaneously, the moving plate moves downwards, driving auxiliary gears downwards via a rotating seat. The two sets of auxiliary gears press the lower plate chain downwards, increasing the overall tension of the plate chain. Similarly, activating the electric actuator indirectly controls the upward movement of the two sets of auxiliary gears, reducing the tension of the plate chain. This achieves the effect of quickly adjusting the tension of the plate chain, making operation simple and quick, and improving the efficiency of the plate chain.

The utility model provides a kind of conveying device for plastic bag production line belongs to plastic bag conveying technical field.This kind of conveying device for plastic bag production line includes rack and conveying frame, conveying frame is installed in rack side part, and rack surface is equipped with winding mechanism, winding mechanism includes carousel, first guide roller and winding roller, carousel is symmetrically rotationally installed in rack side wall.The utility model is through being equipped with winding mechanism, by first electric telescopic link, winding rod can be driven to move to winding disc direction, the plastic bag in winding disc is positioned, subsequently by second motor drive winding disc rotation, it can be rolled to plastic bag, simultaneously, by first motor drive carousel clockwise rotation one hundred and eighty degrees, until winding is completed, first electric telescopic link resets, then winding rod is driven to be in winding roller, plastic bag roll can drop to the surface of discharging bin, and carry out discharging, and another group of winding disc is opened simultaneously to the plastic bag and is rolled, improve winding efficiency.

The utility model discloses a mutually-buckled type efficient spoiler rod of a drying cylinder, which relates to the technical field of papermaking machinery and comprises a spoiler rod made of stainless steel U-shaped cold-bending equilateral channel steel and a support ring, the turbulent flow bars are evenly distributed in the circumferential direction of the drying cylinder, and the supporting rings are evenly distributed in the transverse direction of the drying cylinder. Wherein the spoiler rod and the supporting ring are provided with positioning clamping grooves respectively, positioning is achieved through mutual meshing of the positioning clamping grooves in the assembling process, and U-shaped groove openings are opposite and form an angle of 90 degrees in the installing process, so that the spoiler rod and the supporting ring are locked in the circumferential direction and the transverse direction of the drying cylinder after being clamped into each other. According to the technical scheme provided by the utility model, the turbulent flow rod and the supporting ring are quickly aligned through the mutual buckling type clamping groove, an additional fixing pin structure is not needed, the installation process is simplified, and the assembly efficiency is improved. And a stainless steel material is adopted, so that the structural strength is ensured, the overall weight is greatly reduced, the required tensile force is remarkably reduced, the operation load is reduced, and the stability and the safety of a system are improved.

The utility model discloses a jacking mechanism for a coin stacking machine, the coin stacking machine and coin pushing game machine equipment, the jacking mechanism comprises a jacking driving motor, a first linkage assembly and a jacking platform which are arranged on a base of the coin stacking machine, and a limiting assembly is arranged between the jacking platform and the base; the limiting assembly is used for limiting the jacking table not to move in the horizontal direction relative to the base, the jacking driving motor is connected with the first linkage assembly through a chain and chain wheel structure, and the first linkage assembly is connected with the jacking table. According to the jacking mechanism for the coin stacking machine, the transmission between the jacking driving motor and the first linkage assembly is in transmission connection through a chain and chain wheel structure, the transmission stability can be effectively improved, the tensioning force needed by chain transmission is small, the pressure acting on a shaft is smaller, vibration, impact and noise generated in the operation process are lower, and the service life of the coin stacking machine is prolonged. Therefore, the stability of the coin stacking tower of the coin stacking machine can be effectively improved, and the upper limit of the height and the upper limit of the number of layers of the stacked coin tower are increased.

The invention relates to a heavy cable reel moving chain transmission mechanism which comprises a base and a chain driving mechanism, the base adopts a channel steel seat, the chain driving mechanism is arranged in front of the base, a chain transmission mechanism is arranged right above the chain driving mechanism, and power transmission is achieved between the chain driving mechanism and the chain transmission mechanism through a transmission chain. The transmission chain is tensioned through tensioning chain wheels arranged on the left side and the right side of the front face of the base, and stable power transmission is guaranteed; a cable reel is arranged above the chain transmission mechanism, stable auxiliary wheel mechanisms are arranged on the left side and the right side of the chain transmission mechanism, and the stable auxiliary wheel mechanisms are rotationally connected with the cable reel; the device has the advantages of reasonable structure, adaptive adjustment and chain type driving structure.

The utility model discloses a clothes dryer which comprises a shell, a roller, an air duct piece, a fan assembly, a driving assembly and an adjusting mechanism. The roller is installed in the shell, and an air inlet and an air outlet are formed in the two opposite end faces of the roller correspondingly. An air supply channel is formed in the air duct piece, and an air supply opening and an air return opening are formed in the two ends of the air supply channel correspondingly; the fan assembly is mounted in the air supply channel; the driving assembly is installed in the shell and comprises a motor, a driving wheel, a driven wheel, a belt, a first support and an elastic piece, the power end of the motor is connected with the driving wheel, the driving wheel and the driven wheel are in transmission connection through the belt, the driven wheel is installed on the first support, and one end of the elastic piece is connected with the first support; the other end of the elastic piece is connected with the inner bottom face of the shell, and the adjusting mechanism is connected with the elastic piece. The elastic amount of the elastic piece can be adjusted through the adjusting mechanism, and then the height of the first support is adjusted, so that it is guaranteed that the tensioning force of the belt meets different transmission requirements.

The present application relates to material conveying technical field, specifically to a kind of tunnel type heating conveying equipment, and tunnel type heating conveying equipment includes furnace seat and adjusting mechanism;Furnace seat is provided with conveying belt and roller chain, and conveying belt is formed with closed conveying loop on furnace seat;Roller chain extends along the width direction of conveying belt, and is formed with closed movement loop on furnace seat;Roller chain has a plurality of first and last articulated chain rollers, and chain roller extends along the movement path of roller chain;Each chain roller is all sleeved with deviation correction sleeve, deviation correction sleeve can rotate around its axis, and and conveying belt friction contact;Adjusting mechanism is configured to adjust the distance of roller chain movement in reverse according to the offset of conveying belt.When conveying belt appears offset, through the reverse axial movement of deviation correction sleeve, and under the action of friction force, conveying belt is moved synchronously, deviation correction of conveying belt is realized, so that it can effectively avoid the wear of conveying belt caused by relative sliding, and also can avoid that conveying belt bears high stress for a long time.

The utility model relates to a twisting stress eliminating device with a tension adjusting function, which comprises a machine table, a conduction plate is arranged at the wire inlet end of the machine table, the machine table and the conduction plate are arranged in parallel and at an interval, a pressure sensor is arranged between the machine table and the conduction plate, the pressure sensor is electrically connected with a control system, a support frame is arranged on the conduction plate, and a tension adjusting device is arranged on the support frame. Two supporting wheels are arranged on the supporting frame, the two supporting wheels are vertically opposite and arranged at intervals, a movable column is arranged on one side of the supporting frame and is in sliding fit with the conduction plate, a guide wheel used for bearing a steel wire rope is arranged at the end of the movable column, and a lifting assembly capable of adjusting the height of the movable column is arranged on the movable column. The steel wire rope twisting device has the effect of ensuring the steel wire rope twisting quality.

The present invention belongs to the technical field of tensile strength detection of liner bags, and provides a tensile strength detection device for liquid IBC liner bags, including a base, the base is fixedly connected to an electric telescopic frame, the telescopic part of the electric telescopic frame is fixedly connected to a fixed plate, the fixed plate is fixedly connected to a connecting column, the connecting column is rotatably connected to two turntables, the side end surface of each turntable is rotatably connected to two No. 1 electric rods, and the two No. 1 electric rods on the same turntable form an angle of 180 degrees, and the four No. 1 electric rods are on the same horizontal plane, the connecting column is fixedly connected to a fixed seat, and the fixed seat is fixedly connected to an angle adjustment mechanism. During detection, the liquid IBC liner bag is easily offset relative to the tensioning mechanism under the action of the tensile force. At this time, the control system can adjust the detection accuracy of the liquid IBC liner bag during tensile strength detection by controlling the tensioning mechanism and the positioning mechanism.