21results about How to "Constant tension" patented technology

The utility model relates to bag making machine technical field discloses a kind of non-woven fabric three-dimensional bag making machine with rubber sticking deviation correction, including bag making machine ontology, bag making machine ontology side is provided with support, support inside is provided with winding roller, support inner wall side is rotatably connected with limit roller one, support inner wall is rotatably connected with limit roller three close to limit roller one side, support inner wall is equipped with tensioning adjusting mechanism, support outer wall side is fixedly connected with mounting bracket, the mounting bracket inside is equipped with mounting mechanism.In the utility model, the basic tension is set by rotating screw one, and the dynamic tension fluctuation is absorbed by the buffer assembly composed of spring one. This static adjustment and dynamic buffering combination solves the wrinkle and deformation problem caused by uneven tension of the fabric, ensures constant conveying tension, and improves the finished product size precision and quality consistency.

This invention provides a heat treatment method for stainless steel reed wire, relating to the field of reed wire heat treatment technology. The vertical take-up device includes a support frame and a rail; a movable component is mounted on the rail, and a winding structure is fixedly mounted on the top of the movable component; a wire transfer drum is fixedly mounted at the bottom of the vertical shaft, and the reed wire body is spirally wound around the outside of the wire transfer drum; auxiliary structures are provided on both sides of the top of the support frame, and a guide component is fixedly mounted on the outside of the support frame; precise wire guidance is achieved through the upper and lower guide rollers of the guide component, and the wire is clamped and fed by the wire transfer drum and auxiliary rollers, preventing wire deviation, shifting, and tangling from the source; the auxiliary structure can adjust the clamping force on the reed wire body, ensuring constant tension, tight and uniform wire arrangement, and neat coiling during the winding process, facilitating subsequent transportation, straightening, and stamping processing, thus solving the problems of wire deviation and shifting.

The application discloses a mechanical constant-tension pay-off reel frame and relates to the technical field of reel frames. The mechanical constant-tension pay-off reel frame comprises a reel body, the reel body is rotatably arranged in a reel frame body through a reel support, a tension wheel is fixedly arranged on one side of the reel body, a tension belt is sleeved on the tension wheel, one end of the tension belt is fixed, and the other end of the tension belt is fixedly connected with a tension belt spring; and the mechanical constant-tension pay-off reel frame further comprises a tensioning mechanism, the tensioning mechanism synchronously adjusts the extension and contraction amount of the tension belt spring during a pay-off process, so as to keep the pay-off tension constant. The tension belt is sleeved on the tension wheel, the tension belt spring gives the tension belt a pulling force, the relative friction force between the tension wheel and the tension belt is generated under the action of the pulling force, and then the tension during the pay-off process is kept constant by adjusting the friction force.

The utility model relates to release wire reel technology field, concretely is a kind of tension constant release wire reel for copper wire stranding, including main support frame, vice support frame and copper wire, be provided with unwinding mechanism on the main support frame, the unwinding mechanism is used to release copper wire, be provided with tensioning mechanism on the vice support frame, the tensioning mechanism includes: second positioning piece, the second positioning piece is set on vice support frame, slidingly connected with U piece on the second positioning piece, the inner wall of U piece is rotatably connected with connecting rod. The utility model is provided with tensioning mechanism, make pressing ring to copper wire exert constant downward pressure, ensure that copper wire keeps stable and constant tension in the release process, user can adjust the weight of weight according to actual demand, flexibly control tension size, realize the accurate adjustment and sustained constant release of tension, to effectively improve the efficiency and finished product consistency of entire copper wire stranding process.

The present invention relates to an apparatus for manufacturing a saw-tooth line for surgical treatment, and more particularly, to an apparatus for manufacturing a saw-tooth line for surgical treatment, which can form saw teeth of a saw-tooth line used when lifting the skin in dermatology, orthopaedic surgery or the like at various angles and directions.

The utility model provides a kind of composite filtering MBR membrane piece assembly, including pool body, support, the middle part of the inside of pool body is fixedly connected with support;The inside of the support is detachably connected with crossbeam by connecting piece, and the membrane piece is connected between the crossbeam;The membrane piece is composed of numerous membrane filaments.The utility model has the advantages that lifting beam, joint, movable head are integrated, and the lifting of movable head can be realized by practical hand wheel rotating screw rod, so as to realize the lifting of lifting beam, since membrane piece bottom is fixed, the tightness adjustment of membrane piece can be realized by pulling steel wire, after long time use, its surface will relax due to accumulation, gravity effect, such structure design can keep membrane piece with constant tension, solve the problem of shaking or accumulation caused by membrane filament relaxation due to long-term operation, prolong the life of membrane;When maintaining, without special tool and shutdown, manual rotation hand wheel second can complete the tensioning adjustment of all membranes.

This application relates to a bracket assembly, a windshield assembly, and a vehicle. When an optical element is assembled on the bracket body or removed, the limiting member is in a loosened position, and each abutment part and clamping arm is separated from each other. When the fixed shaft is inserted between the two clamping arms, it can push the two clamping arms apart. When the fixed shaft is pulled out of the two clamping arms, it can also push the two clamping arms apart. When the optical element is inserted between the two clamping arms, the limiting member is in a pressed position, and each abutment part abuts against each clamping arm, so that the two clamping arms are tightly abutted against the opposite sides of the fixed shaft. This ensures that the insertion force of the optical element is small and the extraction force is large during the assembly process. In addition, the tension of the retaining spring remains unchanged, and the extraction force between the retaining spring and the fixed shaft is stable over a long period of time. Furthermore, the interference fit between the retaining spring and the fixed shaft can be reduced to reduce the insertion force.

The embodiment of the application provides a kind of full-automatic inductance labeling machine, it relates to electronic component manufacturing technical field.It includes box, and the inside of box is equipped with conveying mechanism, labeling mechanism and positioning mechanism.Labeling mechanism contains mounting bracket, and mounting bracket is equipped with vertical plate, chuck and limit plate, and limit plate is equipped with the slot hole compatible with chuck, and vertical plate is equipped with electric push rod and push block.Positioning mechanism contains fixed frame, and fixed frame is equipped with barrel, winding motor, material receiving shaft and is used for the winding piece of label roll tensioning.Conveying mechanism contains material belt conveying assembly, adhesive tape reel and cutting assembly.The application realizes the stable supply and tensioning of label by positioning mechanism, and labeling mechanism automatically presses label to the surface of inductance element, and conveying mechanism completes material belt guiding, covers adhesive tape and fixed-length cutting, realizes the full-automatic continuous operation from reel feeding to finished product output, effectively avoids label sticking, blistering and missing problem, significantly improves labeling precision and production efficiency.

The invention relates to the technical field of plastic waste recycling, in particular to an electrostatic separation device and method for plastic waste recycling. The electrostatic separation device comprises a machine frame, an electrostatic separation unit and a feeding unit, the electrostatic separation unit comprises an electrostatic roller and an electrostatic plate, a separation base is arranged in the machine frame, the electrostatic roller is rotationally connected in the separation base, the electrostatic plate is arranged above the electrostatic roller in an inclined mode, different potential differences are formed between the electrostatic plate and the electrostatic roller, and a separation area space is formed. And the feeding unit is used for sorting the electrified materials under the action of electric field force and comprises a feeding end and a discharging end, and the discharging end is arranged corresponding to an inlet of the sorting area space. Dynamic matching and precise alignment of the sorting electric field form and the material incidence track are achieved, sorting precision and adaptability to different materials are remarkably improved, and the device is particularly suitable for sorting mixed plastic waste with complex components and similar physical properties and has remarkable advantages.

The utility model relates to wall cloth production technical field, and disclose a kind of surface treatment device for fabric wall cloth processing, including mounting cover, the side surface of mounting cover is equipped with discharge port, the inside symmetry of mounting cover is equipped with two mounting plate. In the utility model, first guide roller, second guide roller and the sticky hair band wrapped outside thereof using isosceles triangle layout, form double-sided contact path. When wall cloth presents S shape and goes around, sticky hair band efficiently sticks to remove double-sided dust, and from the source, spray impurities are eliminated. Spring push pressure rod makes second guide roller always press wall cloth, material elastic deformation is compensated in time;First telescopic link adjusts the initial height of second guide roller by sliding block, and the reference tension of different thickness wall cloth is adapted;Rotary motor drives swing rod to adjust the inclination of third guide roller, and secondary tightening fine adjustment is carried out to pre-spraying section, and the three synergies ensure that wall cloth maintains constant tension in spraying channel, avoid uneven coating caused by wrinkle or slack.

The utility model discloses a filter membrane tensioning device for filter element production. The filter membrane tensioning device comprises a magnetic powder brake, a tensioning roller, two pushing air cylinders and a membrane clamping roller. The magnetic powder brake is connected with the tensioning roller through a coupler so as to provide tensioning torque for the tensioning roller. The two pushing cylinders are used for pushing the film clamping roller to move up and down; linear bearings are assembled at the two ends of the film clamping roller, and polished shafts are arranged on the linear bearings at the two ends; mounted bearings are arranged at the upper ends of the optical shafts at the two ends; a guide roller is mounted between the mounted bearings at the two ends; the membrane clamping roller moves up and down along the optical axis under the action of the pushing force of the pushing air cylinder so as to clamp a filter membrane with the tensioning roller; the braking torque of the magnetic powder brake is set and kept constant through the PLC; through cooperation of the magnetic powder brake and the PLC, the braking torque is accurately controlled according to a filter membrane tensioning force calculation formula, it is ensured that the tension of a filter membrane is constant in the winding process, and the overall quality of a filter element is improved.

This utility model relates to a belt conveyor's waist wheel weight trolley, including a downward conveyor belt, two fixed pulleys, a redirecting roller, a waist wheel weight, and a steel structure fixed frame. Its key feature is that it further includes a moving trolley mechanism and a fixed guide rail frame. The moving trolley mechanism includes a guide wheel frame and moving guide wheels. The guide wheel frame is a rectangular moving trolley body composed of a transverse frame and a longitudinal frame perpendicularly connected to the transverse frame. An upper fixed frame and a lower fixed frame are fixed parallel to each other within the rectangular moving trolley body. Moving guide wheels are located at the four corners of the longitudinal frame. The fixed guide rail frame is a channel steel structure fixed guide rail frame. The two flanges of the channel steel structure fixed guide rail frame are correspondingly fastened to the outer sides of the moving guide wheels fixed to the rectangular moving trolley body, forming a guide rail frame, allowing the moving guide wheels to roll in contact with the guide wheel frame. Its advantages are: effectively reducing belt damage caused by belt misalignment and increasing the utilization rate of the conveyor belt.

The application discloses a rubber production winding device and method convenient for adjusting winding slackness, which comprises a rack, wherein a winding roller is arranged on the rack, a fixing groove for fixing the end of a rubber strip is formed in the winding roller, and a tensioning assembly is arranged on the rack and comprises clamping rollers symmetrically movably arranged on the rack and cooperating to clamp the rubber strip. The rubber production winding device and method convenient for adjusting winding slackness provided by the application are characterized in that when the rubber strip is wound, the end of the rubber strip is passed between the two clamping rollers and is inserted into the fixing groove of the winding roller, the end of the rubber strip is fixed by the winding roller, the rubber strip is clamped by the clamping rollers, the distance between the clamping rollers and the winding roller is adjusted according to the specified tensioning degree of the rubber strip during winding, the clamping rollers stretch the rubber strip, the rubber strip keeps constant tensioning degree, the winding roller and the clamping rollers are driven to rotate synchronously, the length of the rubber strip released by the clamping rollers is the same as the length of the rubber strip wound by the winding roller, and the tensioning degree of the rubber strip wound by the winding roller keeps constant.

The invention relates to the technical field of supports, in particular to a telescopic floor stand which comprises a base, a fixed stand column is fixed to the top of the base, an extension stand column is installed at the top end of the fixed stand column in an embedded mode, and a height locking mechanism matched with the fixed stand column is arranged at the bottom end of the extension stand column. A sliding rail assembly is slidably connected into the extending stand column, a constant-force volute spiral spring is installed in the sliding rail assembly, the stretching end of the constant-force volute spiral spring is fixedly connected with the top end of the extending stand column, and a cross arm is installed on the sliding rail assembly. According to the telescopic floor stand, rapid locking and height adjustment of the extension stand column and the fixed stand column are achieved through the height locking mechanism, stable lifting and hovering of the cross arm are achieved through cooperation of the sliding rail assembly and the constant-force volute spiral spring, the structure is compact, operation is convenient and fast, and the use experience is greatly improved.

The utility model discloses a turntable twisting large-disc-diameter stranding machine, which relates to the field of twisting disc device structures, and comprises a twisting machine, a traction device and a winding device, the twisting machine is provided with a plurality of wire coils, and the plurality of wire coils are twisted by a twisting device to form a twisted rope; the traction device is arranged on one side of the twisting machine and is used for performing tension traction on the twisted rope; the winding device is arranged on one side of the traction device, the winding device is used for winding the twisted rope, and the tension of the twisted rope can be accurately controlled through the twisting machine, the traction device and the winding device.

This utility model discloses a constant tension electric cable tensioner, relating to the field of cable technology. It includes a base, a placement plate on the base, and an internal conveying assembly. A transmission assembly is fixedly installed on the base, driving a clamping assembly. An adjusting assembly for regulating cable tension is also fixedly installed on the side of the base. The transmission assembly includes a first motor, a drive rod fixedly installed at the output end of the first motor, a limiting seat for limiting the drive rod, and a fixed block fixedly installed on the top of the base. A threaded rod and a limiting rod are rotatably connected to the side of the fixed block, and the threaded rod is threadedly connected to a moving block. This utility model, by setting up a transmission assembly, converts the linear thrust of the moving block into the rotational clamping force of the clamp, preventing gear disengagement when the motor is overloaded. The opening and closing degree of the clamping assembly directly controls the cable gripping force, forming a closed-loop adjustment with the linear speed of the conveying assembly and the pulley position of the adjusting assembly.

The utility model discloses a copper base steel band lead -free segregation inhibits guide mill stand relates to copper base steel band processing technical field, the utility model discloses a base and two support side plates, two support side plates all fixed mounting in the top of base, a plurality of driving rollers are rotationally arranged between two support side plates, still include drive assembly, drive assembly sets up in the same end of a plurality of driving rollers, still include guide plate, guide plate fixed mounting between two support side plates, with guide plate is located in a plurality of driving rollers one side, in the utility model, the device is through spring resistance pressure formula guide structure and adapts to the steel band width change, and the cooperation of liftable third sleeve pipe realizes horizontal positioning and vertical spacing, can ensure the stable guide processing of steel band and prevent edge warping, and the height of guide roller can be adjusted by the rotary plate of pneumatic cylinder drive, can ensure the accurate entry of strip material into the roller and maintain the stability of tension, and the integrated chain transmission structure in drive cavity is compact, and the maintenance convenience is improved.

The utility model discloses a hovercraft apron adhesive tape shearing device, which relates to the technical field of shearing equipment and comprises a first support frame, a second support frame, an unwinding chassis, a third support frame and a fourth support frame, the second support frame is fixed at the top of the first support frame, and the unwinding chassis is arranged on one side of the first support frame along the width direction of the first support frame. The third supporting frame is slidably connected to the top of the unwinding chassis, and a first driving mechanism is arranged at the top of the first supporting frame; according to the utility model, the diameter of an adhesive tape roll on the unwinding roller is monitored in real time through the infrared sensor I, and proper damping torque is output according to the actual yield, so that constant tension of the adhesive tape in the unwinding process is ensured, and the adhesive tape is prevented from galloping due to too large tension or loosening due to too small tension; the automatic output braking torque is matched with the braking mechanism to enable the unwinding roller to stop rotating instantly, the adhesive tape is prevented from continuously moving due to inertia, constant tension is guaranteed, and meanwhile waste of the adhesive tape and abrasion of equipment are reduced.

The utility model relates to the related technical field of metal wire mesh production, and one embodiment of the utility model provides a traction device for metal wire mesh production, the traction device comprises a bottom frame and a center frame, the center frame is arranged on the bottom frame, a side plate is arranged between the center frame and the bottom frame, and a connection adjusting assembly is arranged on the side plate and the center frame. The traction maintaining assembly is arranged on the side plates and the center frame, the connection adjusting assembly comprises a pair of movable rods, the movable rods are fixed to the two ends of the bottom of the center frame and movably connected into the bottom frame in a sleeved mode, an adjusting screw rod is connected into the bottom frame in a threaded fit mode, and the upper end of the adjusting screw rod is rotationally connected with the bottom of the center frame. By means of the technical scheme, the technical problem that in the prior art, tension cannot be adjusted in real time according to factors such as metal wire material characteristics, equipment vibration or transmission abrasion, and consequently uneven tension is prone to occurring in the traction process is solved.

The utility model discloses a tension control device of a carbon fiber spreading and warping machine, which comprises a spool, a raddle, a shaking device, a traction device and a winding device, a first roller and a second roller are arranged between the raddle and the shaking device, the first roller and the second roller are vertically arranged at intervals, the first roller is driven by a third motor, and the second roller is driven by a fourth motor. The second roller is driven by a fourth motor, a first guide roller is arranged between the shaking device and the traction device, a first pressure sensor is installed at one end or two ends of the first guide roller, a second guide roller is arranged between the traction device and the winding device, and a second pressure sensor is installed at one end or two ends of the second guide roller. The first roller, the second roller, the first guide roller and the second guide roller are arranged in the width direction of the carbon fiber yarn, and the third motor, the fourth motor, the first pressure sensor and the second pressure sensor are connected with a central processing unit. The constant tension control device ensures that the tension of the carbon fiber yarns on the wind-up roller is constant and uniform, and realizes constant tension control of the yarns.