52results about How to "Effective stretch" patented technology

The invention relates to a spinning technology of a two-spinning-roller semicontinuous high-speed spinning machine, and belongs to the technical field of semicontinuous spinning machines. The spinning technology comprises the steps of glue supplying, thread-line forming, spinning and winding, wherein the spinning is carried out through a spinning device. The spinning device comprises two spinning rollers which are transversely arranged relative to an operating surface of a spun surface, thread lines surround the spinning rollers, and drafting, solidifying and deacidification in the spinning steps are achieved when the spinning rollers rotate. The spinning technology solves the problems that thread lines of a semicontinuous spinning machine in the prior art are insufficient in reaction, the spinning process cannot be accelerated, and production efficiency and the product quality cannot be taken into consideration. The arrangement direction of the spinning rollers is changed so that the thread lines can walk for a longer distance while the spinning process of the spinning machine is accelerated and the structures of other components of original equipment are not changed, the thread lines can be reacted with acid bath more fully, and both production efficiency and product quality are taken into consideration.

The invention relates to a spinal orthosis which comprises a fixing garment, a chest strap, a waistband, an airbag inflation device, a rubber pipe and a plurality of rigid material sections, wherein the fixing garment is positioned above the chest strap; the chest strap is positioned above the waistband; the fixing garment, the chest strap and the waistband are fixed by virtue of a fixing garment locking device; the plurality of rigid material sections are stuffed into the rubber pipe 7 by sections; the rubber pipe is fixedly arranged at the rear sides of the fixing garment, the chest strap and the waistband by virtue of fixing buckles; the airbag inflation device is sewn at the fixing garment and the waistband in a crossed manner by virtue of airbag fixing straps; the airbag inflation device is clung to the fixing garment, the chest strap and the waistband by virtue of flexible straps. The spinal orthosis provided by the invention is convenient to wear, high in comfort, high in adjustability, high in stability and controllable in correction intensity; by virtue of the spinal orthosis, muscles can be stretched, meridians are stimulated, the correction progress is controlled more conveniently, and the correction effect is improved.

The melt blowing head (2) has a core (3) feeding molten plastic to a row of nozzle bores (4). On each side of the core, primary air is blown against the sides of the filaments, close to the nozzle openings. At least one secondary blowing-air supply is provided. This impinges on the filaments (1) from the sides, below the blowing head. Primary air is supplied on both sides through gaps (5) between the core and nozzle lips (6). Gap width (w) and spacing (x) between core tip and a notional horizontal extension (broken line) of the nozzle lips, is adjustable. The secondary air blast is introduced preferably at 75[deg]-90[deg] with respect to the axis (7) through the nozzle bore (4). It is introduced at 90[deg]. It is heated above room temperature, to preferably 60[deg]C or more. Its relative humidity is preferably less than 20%. It is blown from both sides against the filaments. Blowing from at least one side is constant. Blowing from at least one side is pulsed. A unit (8) is provided, onto which the filaments are laid, to form a spun-bonded fleece fabric.

The invention relates to a surfactant for changing surface wettability of compact sandstone as well as a preparation method and an application of the surfactant. An oil phase solution is added to a water phase solution, and a dispersed and uniform phase is realized after 1-2 h under the action of an emulsifier. An initiator is added, the mixture is stirred and heated to 60-75 DEG C and reacts at the temperature for 12-18 h, and a colorless and clear liquid, namely, a high-molecular polymer, is prepared. A fluorocarbon surfactant and a biosurfactant are added at the room temperature, the mixture is stirred continuously for 4 h, and the surfactant for changing surface wettability of the compact sandstone is obtained. By the aid of the surfactant, the oil-water interface tension can be reduced, an oil wetted surface can be changed into a water wetted surface, the adhesion of oil drops on sandstone surfaces can be reduced, the flowability of crude oil in an original stratum can be improved, and the recovery percent of low-permeability oil reservoirs can be increased.

The invention relates to a heavy-denier-yarn spinning technology of a semi-continuous and high-speed spinning machine, and belongs to the technical field of spinning of the semi-continuous and high-speed spinning machine. The technology comprises the steps of glue supplying, thread-line forming, spinning and winding. The spinning is finished through the spinning device, the spinning device comprises three spinning rollers which are transversely arranged relative to an operation face of a spinning surface, the three spinning rollers are respectively a drafting roller, a solidifying roller and a disacidifying roller, thread-lines sequentially surround the drafting roller, the solidifying roller and the disacidifying roller, and the drafting, the solidifying and the disacidifying in the spinning steps are finished under the rotation of the spinning rollers. The heavy-denier-yarn spinning technology of the semi-continuous and high-speed spinning machine solves the problems that due to the fact that response of thread-lines of a semi-continuous spinning machine in the prior art is insufficient, the spinning speed can not be accelerated, and the production efficiency and the product quality can not be improved at the same time; by changing the arrangement direction of the spinning rollers, the thread-lines can walk a longer distance while the spinning speed of the spinning machine is accelerated and structures of other parts of original equipment are not changed, the thread-lines and acid bath react more fully, and the production efficiency and the product efficiency can be improved at the same time.

The invention provides an underwater image enhancement method based on selective color compensation and three-interval equalization, and belongs to the image processing field. In order to solve the problems of color distortion, low contrast, blurred details and the like of an underwater degraded image, the method comprises a mean value-based selective color compensation method and a three-interval-based equalization method, and the compensation method comprises the following steps: calculating color mean values of R, G and B three-channel images to judge which channel the color of which is better stored, and taking the color channel which is better stored as a color compensation reference benchmark of the other two color channels; according to the equalization method, R, G and B three-channel images are decomposed into three sub-intervals through a lower side quantile method, and different equalization operations are adopted for the sub-intervals; and finally, color correction and contrast enhancement of the underwater degraded image are realized.

The invention relates to a novel semi-continuous high-speed spinning machine which comprises a rack, a glue supply device, a filament strip forming device, a spinning device and a winding device. The spinning device comprises a spinning roller which is transversely arranged relative to the operating surface of a spinning face, and the two ends of the spinning roller are fixed on the rack. The novel semi-continuous high-speed spinning machine improves spinning speed, ensures that filament strips are sufficiently reacted, and then achieves the purposes of ensuring the quality of the filament strips, improving production efficiency and reducing spinning cost.

The invention relates to a spinning process of a three-spinning-roller semicontinuous high-speed spinning machine, and belongs to the technical field of spinning of semicontinuous spinning machines. The spinning process comprises the steps of glue supplying, silk strip forming, spinning and winding. The spinning is completed through a spinning device, the spinning device comprises three spinning rollers transversely arranged relative to an operating surface of a spinning face, silk strips surround the spinning rollers, and drafting, solidification and deacidification in spinning steps are completed under rotation of the spinning rollers. The spinning process solves the problem that due to the fact that the silk strips of a semicontinuous spinning machine in the prior art reacts insufficiently, the spinning speed cannot be improved, and consideration cannot be given to production efficiency and product quality at the same time; the distribution direction of the spinning rollers is changed, so the spinning speed of the spinning machine is improved, structures of other parts of original equipment are not changed, meanwhile the silk strips can be moved for longer distances and react with acid bath more sufficiently, and the consideration is given to the production efficiency and the product quality at the same time.

The invention discloses a tackifier for an oil-based drilling fluid and a preparation method of the tackifier. The tackifier comprises the following components in parts by mass: 2-5 parts of modifiedorganic soil, 2-4 parts of modified vegetable gum, 1-3 parts of thermoplastic elastic resin, 5-10 parts of acrylic acid, 3-5 parts of hydroxymethyl cellulose, 1-3 parts of a quaternary ammonium salt,0.5-1.5 parts of an emulsifier, 3-6 parts of base oil and 0.05-0.15 part of an initiator, wherein the modified organic soil is preferably activated and modified bentonite, the modified vegetable gum is preferably hydroxypropyl guar gum, and the initiator is a mixture of ammonium sulfate and sodium sulfite in a mass ratio of 1: (2-4). The tackifier for the oil-based drilling fluid can overcome thedefect that a water-based drilling fluid tackifier is not applicable to the oil-based drilling fluid, is beneficial for reducing the preparation cost of an oil-based drilling fluid system and improving the overall environmental protection performance of the oil-based drilling fluid, and plays an important role in improving the performance of the oil-based drilling fluid and application of the oil-based drilling fluid.

The invention provides an underwater image enhancement method based on color correction and three-interval histogram stretching. The method comprises steps of performing color correction processing ona source image, processing the source image in an R channel, a G channel and a B channel by adopting a three-interval histogram equalization method, stretching pixel values of a single channel, performing threshold selection and separating three sub-intervals, and finishing three-interval equalization operation to obtain an enhanced image of three-interval histogram equalization; and performing linear weighted fusion on the image after subinterval linear transformation and the three-interval histogram equalization image to reconstruct a final defogged image. According to the method, a histogram equalization method based on multiple intervals is utilized to perform more accurate division on the single-channel histogram of the source image, perform histogram equalization on the single interval and perform linear fusion with the image after color correction processing so that dark details of the source image can be better displayed, noise can be reduced and image defogging can be realized.

The invention relates to an N-channel metal oxide semiconductor (NMOS) transistor and a forming method thereof. The NMOS transistor comprises a semiconductor substrate, a gate structure and source / drain regions, wherein the gate structure is positioned on the surface of the semiconductor substrate; the source / drain regions are positioned in the semiconductor substrate on the two sides of the gate structure and comprise first silicon carbide stress layers positioned in the semiconductor substrate on the two sides of the gate structure, and second silicon carbide stress layers which are positioned at the bottoms of the first silicon carbide stress layers and in contact with the first silicon carbide stress layers; and the first silicon carbide stress layers protrude out of one side of the gate structure. The first silicon carbide stress layers protrude out of one side of the gate structure, and the depth of the second silicon carbide stress layers is large, so that tensile stress generated by the source / drain regions of the NMOS transistor is high, the lattice spacing of a channel region of the NMOS transistor is large, and electron mobility is high.

The invention discloses an efficient cart for spinning. The efficient cart for spinning comprises a carrying plate, a water tank and handheld frames. The handheld frames are symmetrically arranged onone side of the carrying plate and fixedly connected with the carrying plate. The water tank is arranged at the bottom of the carrying plate and fixedly connected with the carrying plate through screws. A mounting base is arranged on the top surface of the carrying plate and welded to the carrying plate, and a cloth winding shaft, a first roller shaft and a second roller shaft are mounted on the surface of the mounting base. According to the efficient cart for spinning, a cart carrying mode is adopted, winding equipment is carried, gauze conveying can be achieved through belt brake wheels, cloth conveying can be achieved, the number of subsequent production steps can be further reduced, the pressure on workers is greatly relieved, and meanwhile production efficiency is enhanced. The efficient cart for spinning further has the functions of thermal ironing and water spraying, and thus wrinkles, protrusions and concave faces of the surface of gauze can be smoothened.

Relating to the technical field of daily skincare products, the invention discloses an anti-aging Camellia nitidissima skincare product, which comprises the following raw materials by weight: 10%-20% of a Camellia nitidissima extracted lqiuid, 10-15% of glycerin, 5-10% of butylene glycol, 1-2% of hyaluronic acid, 2-4% of alkyl glucoside, 0.5-1% of glyceryl monostearate, 6-8% of shea butter, 6-8% of jojoba oil, 1-2% of tocopheryl acetate, 1-2% of vitamin E oil, and the balance deionized water. The skincare product provided by the invention has the efficacy of delaying senescence, removing toxin and maintaining beauty, can help skin discharge harmful toxins and oxyradicals, effectively extends and relieves fine lines and wrinkles, quickly replenishes water and preserves moisture, raises the superoxide dismutase level, and lowers the content of lipid peroxide in blood plasma, thus achieving the efficacy of delaying senescence.

The invention discloses a nasal paste elastic patch and a processing method thereof. The elastic patch is strip-shaped and is arranged between an upper base cloth layer and a lower base cloth layer of nasal paste. The nasal paste elastic patch is characterized in that arc-shaped bending and tilting structures are arranged at two ends of the elastic patch. The processing method of the nasal paste elastic patch includes one-step injection molding; extrusion forming; or cold punching; hot punching; casting; and cutting forming. Compared with the prior art, the nasal paste elastic patch has the advantages that the nasal paste elastic patch can fast and effectively outwards stretch the profile of the nose of a user, breathing paths in nasal cavities are expanded, breathing quantity is increased, and various respiratory disturbance and snore during sleep can be effectively treated or relieved; the nasal paste elastic patch matches with the physiological features of the nose of a human body, and comfort is more obvious when the nasal paste elastic patch is used; and the problem that the total nasal paste gradually drops due to the fact that edges of two ends of the elastic patch are aligned with base cloth layers and edges of two ends of a medical adhesive layer is not easy to be caused.

The invention discloses a preparation method of graphene reinforced polyketone fibers. The preparation method comprises the following steps of firstly, uniformly mixing graphene with a surface treating agent; adding polyketone granules, and continuously melting and uniformly mixing to obtain a graphene / polyketone mixture; carrying out melt spinning on the graphene / polyketone mixture to prepare fused filaments; and finally, cooling the fused filaments through an air channel, and carrying out hot roller drafting and heat setting to prepare the graphene reinforced polyketone fibers. The grapheneis adopted as a reinforcing modification material of the polyketone, and is evenly dispersed in polyketone to play roles in an obstructing effect, a high heat conduction effect and a reinforcing effect. And the barrier property of graphene is utilized to weaken the acting force between ketone groups. A rate of transferring heat from the equipment to a polymer molecular chain is increased, and thetime required for the polyketone to form a crystal-nucleus-free melt is shortened. In the drafting process, the graphene is oriented in the axial direction of the fiber, polyketone molecular chains are induced to regularly grow and be arranged on the surface of the graphene, a string-shaped crystalline structure is formed, and the ultrahigh-strength polyketone fiber is obtained.

The invention relates to a spinning process of a semicontinuous high-speed spinning machine, which belongs to the field of the spinning technology of semicontinuous high-speed spinning machines. The process includes the steps of colloid feeding, filament formation, spinning and winding, a spinning mechanism in the spinning step comprises at least one spinning roller which is horizontally arranged relative to an operating surface of a spinning surface, and the shaping part of a winding mechanism in the winding step is located on the other side which is outside the area between wall plates of both sides of a housing and opposite to the spinning surface. The spinning process solves the problems in the prior art; by changing the arrangement direction of the spinning rollers, filaments can travel for a longer distance and more sufficiently react with acid bath while the spinning speed of the spinning machine is increased and the structures of the other parts of the original equipment are not changed, and thereby both the efficiency of production and the quality of products are taken into account; because the winding mechanism is arranged outside, under the acid environment, the corrosion to the filaments, the winding equipment and a control system thereof is little, and thereby the spinning machine can be conveniently maintained and operated by workers.

The invention discloses an intelligent massaging pillow. The intelligent massaging pillow is characterized by mainly consisting of a base (1), a neck body (2), a head body (3), a motor (9), a controller (6) and a pressure sensor (7) arranged on the head body (3). It can be ensured that the cervical vertebra of a user naturally stretches by combining the neck body and the head body of the intelligent massaging pillow, a massaging assembly arranged on the neck body can conduct frictional massage on the cervical vertebra of the human body under the driving of the motor so that the muscles and nerves of the cervical vertebra can be effectively relaxed, and a human body cervical vertebra traction effect of the neck body is improved. In addition, the controller and the pressure sensor of the intelligent massaging pillow are combined so that the motor driving the massaging assembly can be automatically started up and shut down, namely automatic control of the working states of the massaging assembly is achieved. Accordingly, the intelligent massaging pillow has a good cervical vertebra traction effect and very well achieves automatic startup and shutdown.

The invention relates to a high-performance sound-absorption and thermal-insulation material production line which comprises a main frame, wherein a plastic extruding machine is arranged above the main frame; a round roller net forming machine is arranged in the main frame; a melt-blow spinning box, a dosing pump and a filter are connected together and arranged above the round roller net forming machine; the melt-blow spinning box is connected with a plastic extruding machine; a wind heater is arranged on a side part of the round roller net forming machine; an induced draft fan and a blower are arranged on a side part of the wind heater; the wind heater is communicated with the centrifugal induced draft fan and the blower through pipelines; a dot hot-rolling roller and a dividing and cutting machine are arranged on a side part of the main frame; a spinneret and a spinning micropore are arranged below the melt-blow spinning box; and the micropore diameter ranges from 0.3 mm to 0.4 mm. In the invention, through the technical improvement on key process equipment, such as melt-blow, filling, sewing and the like, the high-performance sound-absorption and thermal-insulation material production line is built, and the procedures of product melt-blow, filling and sewing are accomplished in the same production line.

The invention relates to the technical field of protective clothing, and discloses an adjustable disinfecting and drying device for protective clothing fabric. A winding device is included, transmission parts are in transmission connection with the outer side of the winding device, a sliding way is arranged on the outer sides of the transmission parts, connecting blocks are arranged in the slidingway, and sliding blocks are fixedly connected with the outer sides of the connecting blocks. The surfaces of the sliding blocks are rotationally connected with first connecting rods, first connectingpieces are arranged at the bottom ends of the first connecting rods, and fixing pins are slidably connected into the first connecting pieces. According to the adjustable disinfecting and drying device for the protective clothing fabric, through connection of the winding device and the first connecting rods, effective stretching of the fabric is achieved, wrinkles are effectively prevented, the problem that a fabric drying device used during production of protective clothing is poor in drying effect is solved, and the surface of the dried fabric is not prone to wrinkling, shrinking and other situations; and gas can circulate in the drying process, and the quality of the fabric is effectively improved.

The invention discloses a cylindrical lithium ion power battery shell and a manufacturing method thereof, and aims to provide the cylindrical lithium ion power battery shell and the manufacturing method which have good safety performance and have the advantage that the waste battery shell does not cause serious environmental pollution after the produced battery is discarded. In the technical scheme, the manufacturing method comprises the steps of (A) pressing a metal plate with a thickness of 1-5 mm into a cylindrical outer-layer shell; (B) cutting the metal plate with the thickness of 0.1-0.5mm into the required size, pressing 2-4 Z-shaped folding parts with a width of 1-5 mm, rolling or welding a seam to prepare the cylindrical inner-layer shell; (C) pressing the metal plate with a thickness of 0.1-0.5 mm into S-shaped connecting parts, wherein one ends of the 2-4 S-shaped connecting parts are bonded to an outer side of the inner-layer shell by using a conductive adhesive; (D) welding the bottom edge of the inner-layer shell to the bottom of the outer-layer shell, wherein the other ends of the S-shaped connecting parts in the step (3) are bonded to an inner side of the outer-layer shell by using the conductive adhesive; and (E) injecting a foam filling layer between the inner-layer shell and the outer-layer shell. The cylindrical lithium ion power battery shell and the manufacturing method thereof belong to the technical field of chemical power supply.

The invention relates to the technical field of support equipment of mine construction and particularly relates to a perforating bullet improving the tunnel flow conductivity. In a perforation tunnel forming process, the perforating bullet can remove the perforation compaction zone and reduce the blocking of a perforation slug; and with the effects of cleaning the perforation, improving the tunnel flow conductivity and increasing the oil / gas well capacity, the perforating bullet improving the tunnel flow conductivity comprises a bullet body, an energetic material liner integrated by tight compaction in the bullet body and a shaped charge perforation liner, wherein explosive fills the space between the energetic material liner and the bullet body inner cavity; the top end of the bullet body inner cavity is of an arc-shaped section, and the inner wall of the bullet body inner cavity except the arch-shaped top end is of a reducing step shape; the energetic material liner and the shaped charge perforation liner are of a single-taper angle variable-wall thickness structure; and the outer taper angle of the top end of the shaped charge perforation liner is the same as the inner taper angle of the top end of the energetic material liner.

The invention discloses a human muscle stretching device; a base is involuted and pivoted with a top cover; a transmission mechanism, a lifting mechanism and a cover piece are arranged in the base; the lifting mechanism is provided with a gear shaft, and a jacking piece and a screw rod which are arranged in the gear shaft; and the screw rod penetrates through the jacking piece and is meshed with a screw hole of the jacking piece. According to the human muscle stretching device, the transmission mechanism drives the gear shaft of the lifting mechanism to move together with the screw rod in the gear shaft, so that the jacking piece restricts the rotation of the cover piece and lifts the linked top cover along the screw rod, so as to change the gradient of the surface of the top cover which is contacted with a human body by lifting and jacking, and achieve the purposes of effectively stretching human muscles, relieving spinal joints and building the human body curve.

The invention discloses an image enhancement method fusing an edge gray histogram and human eye visual perception characteristics. The method comprises the following steps: respectively calculating the gradient in the row direction and the gradient in the column direction of each pixel position in an image, and the total gradient of the pixel position; sorting the total gradients of all pixel positions, finding out the maximum total gradient, and setting a gradient threshold; comparing the total gradient of all pixel positions with a gradient threshold value, marking all image edge pixels of which the total gradient of the pixel positions is greater than the gradient threshold value, and counting the number of edge pixels with the same gray level in all marked image edge pixels to obtain an edge gray level histogram; calculating cumulative probability distribution of which the edge gray level is smaller than a set value; calculating perception sensitivity factors of human eyes under different brightness backgrounds by considering the visual nonlinear characteristics of the human eyes, and performing normalization processing to obtain an optimal gray level adjustment reference value; thus, obtaining an enhanced image. The visual effect of the image is remarkably improved.

The invention discloses an anti-humpback massage structure for treating middle-aged and elderly people, and relates to the technical field of medical treatment. The humpback-preventing massage structure for treating the middle-aged and elderly people comprises a backboard, a threaded rod is arranged at the bottom of the backboard, the surface of the threaded rod is sleeved with a bottom plate, anadjusting nut is arranged on the surface of the threaded rod and located at the bottom of the bottom plate in a sleeving mode, and side pressing mechanisms are fixedly connected to the two sides of the back of the backboard through telescopic rods. The invention discloses an anti-humpback massage structure for treating middle-aged and elderly people. Shoulder and back muscles are relaxed and exercised in a mode of cyclically swinging the head and simultaneously extruding the side shoulders; meanwhile, neck muscles are effectively stretched; therefore, backward inclination caused by relative atrophy of the muscles of the shoulders and the back and forward inclination of the head caused by the fact that the muscles of the neck are not enough to support the head are avoided, humpback is effectively prevented and improved. Meanwhile, magnetic therapy is conducted on the back of a user, manual operation is not needed in the whole process, manpower expenditure is reduced, and meanwhile the medical effect can be well guaranteed.

The invention belongs to a back muscle exerciser, which comprises a C-shaped fixing clamp, wherein a metal fixing ring is arranged on the C-shaped fixing clamp, two first safety hooks are connected onto the metal fixing ring and are respectively arranged at one end of one set of elastic connecting elements and one end of another set of elastic connecting elements, second safety hooks are respectively arranged on the other ends of the two sets of elastic connecting elements, and the two second safety hooks are respectively connected with air holes formed in the two sets of upper arm fixing devices. The back muscle exerciser has the advantages that the structure is simple, the design is reasonable, the posture humpback can be effectively corrected, the muscle at the back part and the too tight chest ligament of a human body are efficiently exercised, and meanwhile, the vertebral deformation of a user can be avoided.

The invention discloses a double-open type sauce brushing bread baking system which comprises a baking machine, a glass door is installed at the front end of the baking machine, handles are arranged on the two sides of the glass door, a window opening frame is installed in the middle of the glass door, a sauce brushing mechanism is installed in the middle of the window opening frame, and an installation mechanism is installed in the middle of the sauce brushing mechanism. Fixing mechanisms are installed at the four corners of the baking machine, a bottom frame is installed at the bottom ends of the fixing mechanisms, a storage assembly is installed in the middle of the bottom frame, and sliding groove frames are arranged on the two sides of the bottom frame. According to the double-open type sauce brushing bread baking system, a series of structures are arranged, in the actual use process, a push rod of a hydraulic oil cylinder drives a feeding plate and a feeding box to move, the lower end of the feeding box is connected with a guide pipe, sauce in the feeding box is drained to a flowing box through the guide pipe and finally flows into a sauce brush, and the sauce brushing effect is improved. And the push rod of the hydraulic oil cylinder drives the sauce brush to move back and forth, so that bread in the baking machine can be effectively brushed.

The invention relates to a leg massage chair, which comprises a base, a sliding cavity with an upward and forward opening is formed in the base, a sliding block capable of moving front and back is arranged in the sliding cavity, a bevel gear cavity is formed in the sliding block, and two massage cavities with upward openings are formed in the upper end of the sliding block in a bilateral symmetry mode relative to the bevel gear cavity; massage supporting blocks are fixedly arranged on the lower walls of the two massage cavities, swing shaft cavities are formed in the lower sides of the two massage supporting blocks, swing shafts are rotationally arranged between the left walls and the right walls of the two swing shaft cavities, and massage rotating shaft cavities with upward openings and downward openings are formed in the two ends of the two swing shafts; legs can be massaged from front to back by stretching out the massage device, meanwhile, a roller is additionally arranged in the device, the purpose of relaxing muscles below the legs in the moving process can be achieved, and the legs can be effectively stretched through front-back movement of a sliding block in cooperation with a device for lifting and placing feet forwards.

The invention belongs to the field of railway engineering vehicle body manufacturing, and provides a skin stretching device, a control system and a control method in order to solve the technical problems that in the prior art, the working efficiency of a stretching machine is low, batch flow line production cannot be achieved easily, the clamping and tensioning state is kept for a long time, and the service life of all components of a device is shortened. The skin stretching device clamps to-be-stretched skin through a first clamping mechanism and a second clamping mechanism. A hydraulic pumpstation drives a stretching device and drives the second clamping mechanism to move along a sliding rail, and the skin is stretched. A pressure sensor installed on the hydraulic pump station and a displacement sensor installed on the stretching mechanism detect the stretching condition in real time, and operation is convenient. In addition, based on the control system of the skin stretching device, closed-loop control over skin stretching and subsequent welding is achieved, and according to the corresponding control method, the skin is lifted away from a technological support and then welded to a vehicle frame, the machining efficiency is effectively improved, and the continuous stretching time of the skin is shortened.

The invention relates to the technical field of graphene, and discloses a cutting device for high-toughness graphene cloth. The cutting device includes a supporting block, a squeeze wheel is arrangedinside the supporting block, and the surface of the squeeze wheel is connected with cloth in a rolling mode. A cutting wheel is arranged above the cloth, the inner wheel surface of the squeeze wheel is connected with a squeeze toothed bar in a meshing mode, the bottom of the squeeze toothed bar is slidably connected with a linkage rod, and the left side of the linkage rod is rotatably connected with a meshing wheel. The side surface of an inflation plate is slidably connected with an inflation tube, the top of the inflation tube is fixedly connected with an airbag, a water tank is arranged onthe outside of the airbag, and a water guide pipe is fixedly connected to the left side of the water tank. According to the cutting device for the high-tenacity graphene cloth, through the cooperativeuse of the squeeze wheel and a tapered shaft, and the effect of preventing a cutting point of the fabric and the cutting wheel from changed by automatically adjusting the stretching degree of the fabric at the time of cutting the fabric by the cutting wheel is achieved.