33 results about "Traction Method" patented technology

The invention relates to the technical field of traction equipment, in particular to an SCR continuous casting copper billet traction clamping and conveying mechanism and traction method.The SCR continuous casting copper billet traction clamping and conveying mechanism comprises a plurality of pressing and conveying units distributed in the circumferential direction around the copper billet conveying axis, and each pressing and conveying unit comprises a conveying assembly and a pressing assembly; the conveying assembly comprises two conveying wheels and a soft belt arranged on the two conveying wheels in a transmission mode. By adopting a surface contact traction mode, the contact area between the mechanism and the surface of the copper billet can be effectively increased, so that the local stress on the surface of the copper billet is reduced, the copper billet is conveniently protected and prevented from being deformed and damaged, and meanwhile, the contact area increasing mode is also beneficial to improving the friction force, avoiding the slipping phenomenon and conveniently enabling the copper billet to be uniformly stressed, so that the service life of the copper billet is prolonged. Therefore, the traction stability of the copper billet is improved; by adopting a rotary traction mode, the traction work can be simpler and more convenient to operate, the structure mode is simplified, and the traction speed is more stable.

The invention discloses a cervical and lumbar curvature traction method which comprises the following steps: a preparation stage: a patient lies flat on a bed surface of a traction bed, and the neck of the patient is put on a neck bracket of the traction bed and is matched with a neck sheath on one side of the neck bracket to restrain the head of the patient; the lumbar vertebra of the patient corresponds to the waist bracket of the traction bed and is positioned above the waist bracket; cervical vertebra curvature traction: adjusting the cervical vertebra of the patient to a normal physiological curvature by adjusting the height of a neck bracket, and then pushing the head of the patient by using a neck sheath to perform cervical vertebra traction; and lumbar vertebra curvature traction: lifting the waist bracket to support the waist of the patient, adjusting the lumbar vertebra of the patient to a normal physiological curvature, and then performing lumbar vertebra traction by pulling the legs of the patient. During traction, the cervical vertebra and the lumbar vertebra are adjusted to the normal physiological curvature, the cervical vertebra and lumbar vertebra gap is expanded according to the physiological curvature, then traction is conducted, the intervertebral space is evenly widened, and the defect of cervical vertebra traction in a traditional traction mode is overcome.

The invention provides an auxiliary traction method applied to a pultrusion process. The auxiliary traction method comprises the following steps: calculating a traction force required by a to-be-extruded finished product; if the required traction force is smaller than the strength of the guide rope, the guide rope is used for being connected with the end of the to-be-extruded finished product, and traction of the to-be-extruded finished product is executed through the guide rope; otherwise, the finished product to be extruded and pulled, the high-strength traction belt and the traction rope are sequentially connected, and traction of the finished product to be extruded and pulled is executed through the high-strength traction belt; the guide rope is arranged in the auxiliary traction device, and the auxiliary traction device is used for tensioning the guide rope and winding the guide rope. The traction device has the beneficial effects that according to different application scenes, two schemes are designed to meet the requirements of different product sections and pultrusion speeds, and the labor cost is saved while waste of glass fiber dry yarn raw materials in the pultrusion starting stage is reduced; and the auxiliary traction device provides continuous pulling force and automatically rolls, and the starting speed of the composite material pultrusion process can be matched.

The utility model discloses a traction device for plastic pipe processing, which comprises a bin body and four groups of traction components, the four groups of traction components are all obliquely arranged in the bin body and are arranged in a rectangular array, and the two ends of the two groups of traction components below the bin body are both fixedly connected with the inner walls of the two ends of the bin body. Adjusting assemblies are arranged at the two ends of the two traction assemblies located above the bin body, the two traction assemblies are connected with the inner walls of the two ends of the bin body through the adjusting assemblies at the two ends, and the traction ends of the four traction assemblies all face the center of the bin body. According to the traction device for processing the plastic pipe, the stability of traction of the plastic pipe through the four traction assemblies is better than that of a traditional traction method, and the traction block made of rubber can increase the friction force between the traction block and the outer wall of the plastic pipe, improve the traction effect and reduce abrasion to the outer wall of the plastic pipe at the same time; the two traction assemblies above are adjusted through the adjusting assembly so as to adapt to traction of plastic pipes with different pipe diameters.

The invention discloses a rigid-flexible hybrid drive robot applied to 3D printing, and relates to the technical field of 3D printing, the rigid-flexible hybrid drive robot comprises an outer frame, two rigid positioning assemblies are arranged on the outer frame, four traction assemblies are arranged at the top of the outer frame, and the traction assemblies are symmetrically arranged on the two sides of the rigid positioning assemblies; the rigid positioning assembly comprises a lifting seat, a hinge seat and an electric telescopic rod, the lifting seat is adjustably arranged on the outer frame, the hinge seat is rotatably connected to the lifting seat, one end of the electric telescopic rod is hinged to the hinge seat, and the other end of the electric telescopic rod is spherically hinged to the loading disc. The four groups of traction assemblies increase the working space through a parallel flexible traction mode, and endow the loading disc with higher movement flexibility; the two rigid positioning assemblies provide acting force relative to the traction direction for the loading disc, the rigidity of the equipment is improved, the stability in the printing process is ensured, the dimensional precision of a printed piece is guaranteed, and the problem that single rigid driving is insufficient in flexibility or single flexible rigidity is low is solved.

To provide a traction device and a traction method capable of stopping rotation of a pulley when load torque exceeding operation torque is applied, capable of being used as assistance of manual traction since the operation torque can be changed, and capable of preventing a bobbin from being firmly clogged in an underground buried conduit.SOLUTION: A traction device 1 of the present invention is used for a conduit continuity test of an underground buried conduit 2, and includes a pulley 11 which tows a bobbin 3 passing through the underground buried conduit 2 and around which a rope 4 attached to the bobbin 3 is wound, an electric motor 12 which rotates the pulley 11, a rotation stopping means 13 which stops rotation of the pulley 11 when a load torque exceeding an operation torque is applied to the pulley 11, a torque setting means 14 which can change the operation torque, and a speed setting means 15 which sets a rotation speed of the electric motor 12.SELECTED DRAWING: Figure 1

The invention relates to the technical field of orthodontics, in particular to a buccal side embedded canine tooth traction guide plate and a traction method thereof.The traction guide plate comprises a fixing end and a traction end, the fixing end is of a rectangular structure, the fixing end is fixed to an orthodontic bracket and an orthodontic arch wire on rear teeth through metal ligature wires, and the traction end is connected with the metal ligature wires. A traction end is mounted on the side, close to the embedded teeth, of the fixed end, the traction end is of a bent arc-shaped structure, a first traction position and a second traction position are arranged on the traction end, and the traction end is connected with a traction site bonded to the embedded canine teeth through an elastic rubber chain so as to pull the embedded canine teeth; according to the invention, the arc-shaped traction end with the first traction position and the second traction position is designed, the first hook is utilized to realize inclined movement of the embedded canine from the embedded position to the target area in the first stage, and the plurality of second hooks are utilized to realize vertical positioning and fine position adjustment of the teeth in the second stage; the accuracy and controllability of a tooth moving path are improved, and the treatment period is shortened.

The present invention provides a traction vehicle for a molten iron ladle rail transport vehicle and a traction method thereof, which solve the problems of traction and steering of the molten iron transport vehicle and the conversion and use of the traction vehicle head on a flat ground. To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the traction vehicle for the molten iron ladle rail transport vehicle of the present invention includes a front vehicle body and a rear vehicle body, the front vehicle body and the rear vehicle body are hingedly connected, the rear portion of the rear vehicle body and the front end of the front vehicle body are respectively provided with traction hooks for connecting to the molten iron ladle transport vehicle, the molten iron ladle transport vehicle travels on a track, both sides of the track are hardened ground, the front vehicle body and the rear vehicle body are respectively provided with a pair of rubber drive wheels, the paired rubber drive wheels are located on both sides of the track, and a track detector is provided below the front vehicle body.

The invention relates to the technical field of medical equipment, and discloses an orthopedic treatment and rehabilitation integrated intelligent traction support which comprises a supporting frame body, one side of the top of the supporting frame body is fixedly connected with a first supporting plate, and one side of the first supporting plate is rotatably provided with a second supporting plate; fixing plates are fixedly connected to the left side and the right side of the bottom of the first supporting plate, a two-way threaded rod is movably connected to the inner side of each fixing plate through a bearing, a second bevel gear is fixedly connected to the middle side of the outer portion of each two-way threaded rod, and two threaded blocks are in threaded connection to the outer surface of each two-way threaded rod. The rotating disc is adopted to drive the transmission rod to rotate synchronously, then the two-way threaded rod is driven to rotate, the first binding belt and the second binding belt are precisely dragged in cooperation with the traction belt, and scientific traction on a patient is achieved. By means of the design, accurate regulation and control and uniform force application of traction force are achieved, the secondary injury risk caused by uneven force in a traditional traction mode is effectively avoided, and the safety and reliability of treatment are greatly improved.

The present disclosure pertains to medical devices. More particularly, the present disclosure pertains to tissue clip devices and related systems and methods. In an embodiment, a tissue clip may include a grasper including jaws at a first end, and a spring portion at a second end, and a longitudinal axis extending along a length of the grasper from the first end to the second end, wherein the spring portion is configured to bias the jaws toward each other. A wedge may be slidably disposed between the jaws such that an apex of the wedge is oriented toward the spring portion. A filament may be coupled to the wedge at a first end of the filament and may extend through a channel of the spring portion of the grasper to a second end of the filament.

The invention discloses a magnetic control intelligent traction system for endoscopic surgery. The magnetic control intelligent traction system comprises an in-vivo magnetic clamp assembly, an in-vitro magnetic control device, a navigation positioning subsystem and a central processing unit. The in-vivo magnetic clamp assembly firmly grabs mucous membrane tissues through the shape memory effect and the surface spinule structure of a nickel-titanium alloy clamp arm; the in-vivo magnetic clamp assembly is integrated with an MEMS force sensor, actual traction force is detected in real time, and data of the force sensor are transmitted to the central processing unit through the wireless communication module. The in-vitro magnetic force control device is used for pulling the in-vivo magnetic clamp to move, receiving target magnetic field parameters of the central processing unit and outputting a PWM signal to adjust current; the navigation positioning subsystem receives the position information of the in-vivo magnetic clamp, tracks the position of an in-vivo magnetic clamp assembly, and distributes an optimal traction vector through a particle swarm optimization algorithm; the central processing unit receives navigation positioning data, feedback of the force sensor and an operator operation instruction, generates a magnetic field control signal and distributes traction force vectors of all clamps through a PSO algorithm. Accurate and stable output of traction force in the ESD operation is achieved.

The present invention discloses an obstetrical delivery device, comprising a suction mechanism for sucking the head of a fetus, wherein the suction mechanism is mounted on a supporting mechanism, and the supporting mechanism is detachably mounted on a delivery bed, and the suction mechanism is connected to an adjusting mechanism, and the adjusting mechanism is used to adjust the traction force of the suction mechanism on the fetus. The present invention has a stable structure and a reasonable layout, and can perform the functions of intermittent traction and stable traction for delivery. Different traction modes can be selected according to different situations, and the delivery effect is good, and the applicability is wide, thus meeting current use requirements.

The application provides an aircraft ladder frame traction device and a traction method, and belongs to the technical field of traction devices. The aircraft ladder frame traction device comprises a traction vehicle body, and a lifting mechanism is installed on the top of the traction vehicle body. By installing the lifting mechanism on the top of the traction vehicle body and installing the buffer mechanism on the top of the lifting mechanism, the support table is installed on the top of the buffer mechanism, and then the traction vehicle body is moved to below the aircraft ladder frame cross beam, the lifting mechanism drives the support table to move upward, so that the support table is in contact with the bottom of the aircraft ladder frame cross beam, the aircraft ladder frame cross beam extrudes the support table downward, and then the buffer mechanism is compressed, so that the downward pressure is applied to the traction vehicle body, and the ground holding capacity is improved. In addition, the rack is installed on the top of the lifting mechanism, the clamping mechanism is installed on the top of the support table, when the support table moves downward, the rack drives the clamping mechanism to move, so that the aircraft ladder frame cross beam is automatically clamped and fixed, and the use is convenient.

The utility model relates to the technical field of medical instruments, in particular to a pair of separating type traction forceps, and aims to solve the technical problems that the tissue injury risk is increased, the operation time is prolonged and the traction part cannot be flexibly adjusted due to the fact that a puncture suture penetrates through tissues in the prior art. The pair of separating type traction pliers comprises a clamping assembly, a grab handle assembly and a traction rope. The clamping assembly comprises a first clamping jaw, a second clamping jaw and a clamping mechanism, the grab handle assembly comprises a main plier body, an auxiliary plier body and a sliding mechanism, and the main plier body and the auxiliary plier body are hinged through the sliding mechanism. The main plier body and the auxiliary plier body are detachably connected with the first clamping jaw and the second clamping jaw respectively. The sliding mechanism is used for driving the clamping mechanism to lock or unlock the clamping angles of the first clamping jaw and the second clamping jaw. The separating type traction forceps are provided with the clamping assembly and the grab handle assembly which are detachably connected, the clamping assembly which locks the clamping angle after being separated is meshed on the abdominal cavity tissue, and rapid and firm butt joint with the abdominal cavity tissue is achieved. The technical problems that the tissue damage risk is increased, the operation time is prolonged and the traction part cannot be flexibly adjusted due to the fact that a puncture suture penetrates through the tissue in an existing tissue traction mode of the laparoscopic operation are solved.

The application discloses a strong traction device, system and traction method, and the strong traction device comprises a base, a push-pull device, an inclined connecting rod, a main connecting rod, a telescopic small arm and a joint hydraulic cylinder. The push-pull device is connected with the base, and the front end of the push-pull device can be extended or contracted relative to the base along a first preset direction. One end of the inclined connecting rod is hinged to the front end of the push-pull device, and the other end of the inclined connecting rod is hinged to one end of the telescopic small arm. The other end of the telescopic small arm is used for traction of a hydraulic support. One end of the main connecting rod is hinged to the base, and the other end of the main connecting rod is hinged to the inclined connecting rod. One end of the joint hydraulic cylinder is hinged to the main connecting rod, and the other end of the joint hydraulic cylinder is hinged to the telescopic small arm. The strong traction device can output a traction force much larger than the pulling force of the push-pull device in a small range through the lever principle, overcome the maximum value of the static friction force of the hydraulic support in the starting stage, and make the hydraulic support traction route be pulled according to an ideal path.

The invention discloses a shoulder dystocia delivery rescue teaching method based on a VR technology, and relates to the technical field of delivery rescue teaching, and the method comprises the following steps: S1, analyzing a tortoise sign state, S2, determining a call button, S3, executing a thigh bending method, S4, executing a Rubin method, S5, executing a Rubin + Woods combination method, S6, executing a reverse Woods method, S7, executing a rear arm pulling method, S8, executing a four-limb landing method, and S9, outputting test paper questions. According to the invention, a standardized and efficient training path is created for professionals with different stages and requirements through a virtual scene constructed by 3D modeling software in cooperation with interactive operation, learners can attempt various operation methods without worry in a virtual environment by means of a VR technology, and meanwhile, by means of the perspective effect of virtual model animation, the training efficiency is improved. A learner can visually see the position of a fetus which cannot be observed during operation in the uterine cavity, the acting point of fingers, the force exerting direction and the real-time change of rotation of the body of the fetus in the uterus according to different shoulder rotating manipulations during operation, and the skill is improved.

The invention relates to the technical field of cervical vertebra lesion treatment, and discloses a traction device and method for treating cervical vertebra lesion, the traction device comprises a traction chair, a supporting part installed at the position of a seat of the traction chair and a shoulder supporting part installed above the seat, the sliding rods are of concave structures and penetrate through armrests of the traction chair seat in a sliding mode, supporting plates are fixed to the tops of the sliding rods, and folding rods are fixedly connected to the opposite sides of the sliding rods on the front side and the rear side; the surface of the sliding rod is sleeved with the spring, and the two ends of the spring are fixed to the bottom of the supporting plate and the top of the handrail respectively; as the movable plate slides on the surface of the sliding plate and the height of the limiting plate is adjusted through the fixing bolt, the limiting plate can be adjusted according to the position of the shoulder of the patient, so that the shoulder of the patient can be conveniently limited during traction, the limiting plate abuts against the shoulder during traction to prevent the shoulder from moving upwards, and the traction effect is improved. The traction force is concentrated on the cervical vertebra.

The application discloses a helicopter universal traction structure and a traction method thereof, and relates to the technical field of traction vehicles. The application comprises a traction frame, one end of the traction frame is provided as a U-shaped structure, and a helicopter front landing gear is internally installed, one end of the helicopter front landing gear is symmetrically connected with a connecting roller in a rotating mode, one end of the traction frame is symmetrically provided with a connecting groove, the connecting roller is internally installed in the connecting groove, one end of the connecting groove is provided with a connecting assembly, the other end of the traction frame is provided with a mounting block, and the top of the mounting block is rotatably connected with a steering handle. The spring one, the damper and the braking assembly are used in cooperation, so that when the helicopter front landing gear is suddenly stopped, the spring one and the damper absorb and buffer the inertial thrust received by the traction frame, and the braking assembly is used in cooperation to increase the friction between the traction frame and the ground, so that the braking distance of the traction frame is shortened, and the use safety of the traction vehicle is effectively improved.

The present invention discloses a secondary sheathing traction device and traction method for optical cables, belonging to the technical field of optical cable preparation devices. The device comprises a first traction mechanism, an auxiliary traction mechanism, and a second traction mechanism arranged in sequence along a first direction. The first traction mechanism comprises a first driven wheel and a first driving wheel; the auxiliary traction mechanism comprises a first traction wheel, a dancing wheel, and a second traction wheel; the second traction mechanism comprises a second driven wheel and a second driving wheel; and the position of the first traction wheel is adjustable along the second direction and / or the third direction. When the sleeve in the present application undergoes a tension change, the dancing wheel will sense the tension change in advance and restore the sleeve tension to a preset level by adjusting the rotation speed of the second driving wheel. This is a pre-adjustment method, which avoids the existing traction device from making adjustments after the sleeve is damaged, thereby ensuring the stability of the sleeve tension under high-speed production and avoiding internal optical fiber breakage.

The present invention relates to the technical field of traction equipment, and particularly to an SCR continuous casting copper billet traction pinch roll mechanism and a traction method, which include a plurality of press feed units circumferentially distributed around the copper billet conveying axis. The press feed unit includes a conveying component and a pressing component; the conveying component includes two conveying wheels and a soft belt drivingly arranged on the two conveying wheels. By adopting the method of surface contact traction, the contact area between the mechanism and the copper billet surface can be effectively increased, thereby reducing the local stress on the copper billet surface, facilitating the protection of the copper billet, and avoiding its deformation and damage. At the same time, the way of increasing the contact area also helps to increase the friction force, avoid slipping, and make the force on the copper billet uniform, thereby improving the stability of copper billet traction; by adopting the method of rotary traction, the traction work can be made simpler and more convenient to operate, the structure can be simplified, and the traction speed can be made more stable.

This utility model relates to the technical field of colored yarn traction and conveying devices, and discloses a traction device for colored yarn production, including a mounting plate. An airflow traction mechanism and an outlet mechanism are fixedly installed on the front of the mounting plate. The airflow traction mechanism includes a traction box and an air supply device. An airflow channel is provided inside the traction box. Several air holes communicating with the airflow channel are symmetrically opened on the top and bottom of the traction box. The air supply device is used to output high-pressure airflow to the several air holes. The ends of the several air holes communicating with the airflow channel are all inclined towards the outlet mechanism. This utility model uses an airflow traction mechanism for colored yarn traction and conveying. The airflow traction mechanism, with its structure of the traction box and an air supply device, can pneumatically convey colored yarn. That is, a circulating airflow is formed inside the airflow traction mechanism, and the yarn conveying effect is achieved through the airflow. Compared with the traditional roller traction method, it can avoid the rubbing and color fading of undried colored yarn during the traction and output process.

According to the super-long cable strand traction method and system, a double-fulcrum stress structure is constructed for the cable strand to be pulled through the front-end puller and the rear-end puller, and concentrated loads borne by traditional single-point traction are effectively dispersed to two supporting points of the front-end puller and the rear-end puller; therefore, the risk of head warping or overall overturning of the puller caused by single-point clamping stress concentration is greatly reduced, and a stable mechanical basis is provided for traction of an ultra-long heavy-load cable strand; in the traction operation, the monitoring module and the background control module are used for monitoring the traction speed and the balance condition of the puller in real time and actively regulating and controlling the traction speed and the balance condition of the puller in real time, transverse shaking of the puller is remarkably reduced, it is guaranteed that the cable strand can stably move forwards along the preset track and posture, and finally the high-precision and high-safety stable traction target is achieved; the core technical problem of super-long cable strand traction in super-large-span suspension bridge construction is effectively solved.

A traction tool for traction of a suture under a flexible endoscope, wherein the traction tool includes a shaft, a first holding portion provided at a front end of the shaft and capable of holding the suture or a suture needle attached to the suture, and a second holding portion provided at a position on a base end side of the shaft than the first holding portion and for hooking the suture, the second holding portion being capable of expanding in a radial direction of the shaft.

A traction device and method for cable laying includes a mounting base, a connecting assembly, several moving assemblies, several power mechanisms, a limiting seat, and a clamping assembly. One end of the connecting assembly is connected to the inner side of the mounting base, the other end of the connecting assembly is fixedly connected to one side of the limiting seat, and the other side of the limiting seat is fixedly connected to the clamping assembly. The moving assembly is provided on the outer side of the connecting assembly, and the power mechanism is provided on the inner side of the connecting assembly. The moving assembly is connected to the power mechanism. During use, the cable is loaded into the clamping assembly, and the connecting assembly is used to make the moving assembly conform to the inner wall of the underground pre-buried cable conduit. The power mechanism then provides power to the moving assembly to achieve cable traction and laying. Therefore, this design can adapt to the traction of cables of different sizes.

The invention relates to a pull-type continuous core film water stop system and a construction method. The pull-type continuous core film water stop system can be applied to the water stop field of foundation pits, side slopes, river channels, dam bodies, mines and the like. According to the water stopping system, a closed or long-section continuous water stopping core film is formed in a flow-state undisturbed soil stirring body at a time in a traction mode. The system is composed of an undisturbed soil stirring body, a continuous core film and auxiliary components, and implementation assemblies comprise the core film, a box, an advancing device, an implanting device, a traction device and a matching device. When the system is implemented, a flow-state undisturbed soil stirring body is formed through stirring, then a box internally provided with a core film and an advancing device is implanted into the stirring body, then a traction device is connected, the advancing device is pulled on the ground along a water stopping side line, the core film is continuously unfolded in the flow-state stirring body, and a closed or long-section continuous water stopping structure is formed. The system can be effectively implemented in a conventional soil layer, a sand layer and a pebble bed, a continuous and reliable water stop structure is formed, the construction speed is high, the water stop effect is good, the manufacturing cost is low, and the system is particularly suitable for foundation pit and side slope water stop.

The present invention discloses an overall synchronous lateral traction device and a traction method for replacing an old elevated railway bridge with a new one. The device includes a slide rail; the old beam body is slidably fitted on the slide rail through a first slider, and the new beam body is slidably fitted on the slide rail through a second slider; the second slider is higher than the first slider; first traction systems and second traction systems are provided at each node of the old beam body and the new beam body; the front end of the first traction rope of the first traction system is stuck in the front opening of the first anchor hole of the front steel truss; then it is tightened by a lower tension pulley and connected to a first traction type jack; after the front end of the second traction rope of the second traction system is stuck in the front leveling truss, it is tightened successively by a rear tension pulley, then reversed by upper and lower reversing pulleys, and then tightened by an upper tension pulley and connected to a second traction type jack; the key of this method is to first synchronously laterally traction a section of the old beam section and a flush new beam section, and then separately traction the new beam section. The device and method can avoid the entanglement and interference between the traction rope systems of the new beam body and the old beam body.

The present invention relates to an adjustable cervical traction device controlled by remote control signals and a traction method thereof. The adjustable cervical traction device controlled by remote control signals comprises an upper connecting frame, a lower connecting frame, a head holding mechanism and a head traction mechanism arranged on the upper connecting frame, a shoulder holding mechanism arranged on the lower connecting frame, and an electric control module. The upper connecting frame is composed of a pair of U-shaped frames; the lower connecting frame is composed of a rear clamping plate connected to the upper connecting frame on one side and a front clamping plate connected to the upper connecting frame on the other side; the head traction mechanism is arranged on the top of the head holding mechanism, and the shoulder holding mechanism is arranged on the rear bottom of the head holding mechanism. The electric control module drives the operation of the head traction mechanism by signal control. The present invention solves the problem that existing cervical traction devices are not convenient for people with different neck lengths to perform cervical traction correction treatment, and thus efficiently and automatically controls to complete cervical traction.

The invention provides a segment traction method and a segment traction device using the same. The traction method includes a segment traction step of controlling the drive device to move the compression member, providing a traction force to pull the segment by a traction movement in which the compression member is driven by the drive device to move the compression member. The pressing member at a traction waiting position is moved in a first direction from the rear of the spine toward the front of the spine to pull the spine to a traction start position, and then the pressing member is moved in the longitudinal direction of the spine toward the front of the spine to pull the spine to the traction start position. And a traction unit that moves in a second direction from the tail side to the head side and drives and pulls the spine to a traction end position. Preferably, the traction starting position can be a lumbar vertebra part, and the traction ending position can be a thoracolumbar vertebra conversion part.

The invention belongs to the technical field of waterproof coiled materials, and discloses a butyl rubber self-adhesion waterproof coiled material surface layer stripping traction device which comprises a first support body, a second support body, a third support body, a fourth support body, a bonding collecting device, a bonding analyzing device and a stripping device. The bonding acquisition device consists of a transmitting device and a receiving device; the bonding analysis device comprises an arithmetic device; the stripping device consists of a traction device and a magnetic powder device; the adhesion analysis device is electrically connected with the first receiving body, the second receiving body, the traction device and the magnetic powder device. The invention further discloses a stripping traction method. The invention has the following main technical effects: the structure is simple, and the implementation is easy; the tension can be automatically detected and controlled, so that the situation that the sheet is stretched and dragged due to too low traction speed or the product is damaged due to too large pre-tensioning tension due to too high traction speed is avoided; and meanwhile, whole-course recording and control of product quality are realized.

The invention discloses a traction mechanism and traction method for a special-shaped steel bar lock catch armoring machine, and belongs to the technical field of marine flexible hoses. The device comprises a base, a traction device and a driving device; the traction device comprises a plurality of traction units arranged in the process direction, each traction unit comprises a first traction roller, a second traction roller and a mechanical cylinder, the first traction rollers and the second traction rollers are oppositely arranged, and the first traction rollers and the second traction rollers are installed on respective roller seats through rolling bearings. The first traction roller and the second traction roller form a traction channel in the base; the mechanical cylinder acts on the first traction roller through the roller seat, so that the first traction roller compresses relative to the second traction roller along the connecting line direction of the first traction roller and the second traction roller; the driving device comprises a motor fixedly connected with the base and a synchronous transmission mechanism connected with the traction roller shafts and is used for driving the second traction rollers to rotate at the same speed in the same direction. According to the mechanism, hydraulic loading is replaced, and meanwhile, clamping force can be independently adjusted and stably kept, so that the machine adjusting efficiency and the operation stability are improved on the premise that traction is guaranteed to be constant in speed and same in direction.