239results about How to "Strong aesthetics" patented technology

The invention discloses an anti-break intelligent handset, comprising a body; a gravitational acceleration inductor arranged in the body and used for detecting acceleration when the handset is falling; and a display screen arranged on the right side of the body, wherein four corners of the body are movable corners in connection with compression springs, the movable corners are locked to the body through an electromagnetic switch, the outer contours of the movable corners locked to the body match the outer contour of the body, the electromagnetic switch is deblocked when the gravitational acceleration inductor detects that the handset falling acceleration is equal to or greater than gravitational acceleration g, and the compression springs drive the movable corners to extend out of the body. According to the invention, the movable corners matching the outer contour of the body are arranged, thereby avoiding influencing body associative perception when the movable corners are locked to the body; compared with the prior art, the body is more beautiful; besides, the movable angles and the compression springs are integrated; the structure is simpler and disassembly and assembly are more convenient.

The invention discloses a movable plant wall, which consists of a support system, an irrigation system and a control system, wherein the support system consists of a wall body, transverse brackets and a water tank; the wall body is erected in the water tank; a plurality of layers of transverse brackets are arranged around the wall body; the irrigation system consists of a water pump, a water pipe, water pipe supports, a water outlet and a humidifier; the control system consists of a controller and a water level display; the water pump is arranged in the water tank; the water outlet of the water pump is connected with the water pipe; the water pipe is communicated with the upper end of the wall body from one side of the wall body, and is fixed on the water pipe supports; and the humidifier is arranged around the lower end of the wall body at the upper end of the water tank. The movable plant wall has the advantages of increasing the number of green plant bonsais in a unit area, bettering greening effect, simultaneously realizing automatic irrigation and humidification, realizing the reutilization of water due to the backflow of irrigation water into the water tank, and avoiding influences, caused by the flow of the irrigation water onto the ground, on the attractive appearance, along with convenient movement, high practicability and good aesthetic effects.

The invention relates to the field of optical holography anti-counterfeiting and in particular to a hologram with a special optical anti-counterfeiting effect generated on the basis of dynamic moire technology and a manufacturing method of a holographic motherboard. According to the moire fringe generated by the invention, fringe grating information is manufactured into a photoetching color graph and a photoetching gray graph by a computer processing means on the basis of a dynamic moire technology principle and then dynamic moire fringe information is transferred to the photoetching motherboard by using laser photoetching equipment. The dynamic moire effect obtained by the method can be identified under natural light; and in addition, the dynamic effect of moire fringe can be controlled, so that higher accuracy and convenience for anti-counterfeiting check of products are realized.

The invention provides a UV photocurable coating and its preparation method and the thermal sublimation transfer film forming technology using it. The UV photocurable coating includes components: epoxy acrylic resin, special polyurethane acrylate, fluoride modified hexafunctional group Aliphatic urethane acrylate, polyester acrylate, cellulose acetate, xylene, isopropanol, dipentaerythritol pentaacrylate, silicone leveling agent, fluorine-modified polyacrylate, 1-hydroxy-cyclohexyl-phenylmethanol ketone, 2-hydroxy-2-methyl-1-phenyl-1-propyl ketone, ethyl acetate, butyl acetate and toluene. The UV photocuring paint of the present invention is environmentally friendly and has strong adhesion, and the formed coating film has high strength, high hardness, high wear resistance, high weather resistance and high solvent resistance, and is simple to prepare. Using the thermal sublimation transfer film-forming technology of the UV light-curing coating, the process is simplified, the efficiency is high, and the substrate of the decorative coating is completed. The surface has the high performance brought by the UV light-curing coating, which is more beautiful and decorative. Taller and durable.

The invention relates to anti-counterfeiting paper with a wide multilayer white watermark and a manufacturing method thereof. The invention provides the anti-counterfeiting paper with the wide multilayer white watermark for the first time, wherein the wide multilayer white watermark is a white watermark with different brightness, besides, the pattern of the wide multilayer white watermark is composed of faces and / or lines. The wide multilayer white watermark is composed of a plurality of brightness levels, different parts of the watermark pattern can be equipped with different brightness, and a more distinct contrast can be formed among the different parts of the watermark pattern, so that the wide multilayer white watermark has a stronger anti-counterfeiting feature. Because of the multiple layers, the watermark is better enriched and rich in aesthetic feeling, has a favorable visual effect, is beneficial to identification, and the difficulty in counterfeiting is greatly increased. According to the differences in the watermark patterns, different brightness levels can be selected. The invention further provides a method for manufacturing the anti-counterfeiting paper with the wide multilayer white watermark.

The invention relates to a cutwork embroidery method, which consists of embroidery, trimming, making up, fixation and embedding. The cutwork embroidery method comprises the following steps that: design patterns are drawn on fabrics and are embroidered by adopting an embroidery method, and the patterns are trimmed, made up, fixed, shaped, embedded and mounted after the embroidery completion for forming a cutwork embroidery work. The cutwork embroidery provided by the invention belongs to a novel pattern making method developed and evolved from the folk traditional embroidery skill, the traditional embroidery method is reformed and innovated through different processes and techniques on the traditional embroidery basis, great innovation is carried out on the pattern making embroidery, and new artistic forms and varieties such as double-side embroidery, double-side and different-color embroidery and double-side different-color different-image embroidery are added, so the traditional embroidery work shows new aesthetic effects and stronger vitality.

The invention discloses a transparent rough-surface magic tape, comprising a bottom layer interwoven by a plurality of warps and wefts made of transparent or semi-transparent nylon monofilaments, a plurality of pile loops, interwoven by yarns made of transparent or semi-transparent nylon monofilaments in a preset potion of the bottom layer under a condition that the diameter of the pile loop is less than that of the warps and wefts, so as to be woven in a direction which is the same as that of the wefts and protrude on the surface of the bottom layer; and a waterproof glue layer bonded on the surface of the bottom yarns. The magic tape is not only bright and transparent, but also light and soft, has compact bonding and high tension when matched with an ejection hook magic tape, and has clear, bright and beautiful patterns when being printed with patterns.

The invention provides a stainless steel stain-resistant nano-coating and a preparation method thereof. The stainless steel stain-resistant nano-coating comprises the following raw materials: 0.9-1.1 parts of nanometer-sized titanium dioxide sol, 0.85-1.1 parts of nanometer-sized silicon oxide sol, 0.9-1.15 parts of nanometer-sized aluminium oxide sol and 6.85-7.15 parts of distilled water. The preparation method comprises the steps of preparing a nanometer-sized sol coating liquid and coating to form the nano-coating. The stainless steel stain-resistant nano-coating is compact in surface, uniform and high in hardness, has strong adhesion to a stainless steel substrate, and is good in hydrophilicity, stain-resistant and corrosion-resistant.

The invention relates to a desizing and decolorizing composite enzyme and a nostalgic-style denim fabric washing process thereof. The desizing and decolorizing composite enzyme is prepared from the following components in percentage by weight: 30% to 35% of desizing enzyme, 13% to 16% of ligninase; 20 to 26% of neutral cellulase, 26% to 32% of tetrasodium ethylenediaminetetraacetate, 5% to 8% of anonionic surfactant and the balance of deionized water. The nostalgic-style denim fabric washing process comprises the following steps of: desizing and decoloring treatment, potassium permanganate strong decolorizing treatment, demanganization treatment, normal temperature washing, polishing soft treatment, dehydration and drying treatment. According to the process, the desizing and decolorizingare carried out in one bath, so that the water and energy are saved, the abrasion caused by machinery to denim fabrics is decreased, the strong damage is reduced, the discharge of harmful substances is decreased, and the washed denim fabrics are free of pilling and furring and have softer hand feeling.

The invention provides an application of polysiloxane used as a coating on a kitchen utensil. The inner surface and / or the outer surface of the kitchen utensil is coated with Polysiloxane, and the polysiloxane is used as one or more kinds of a non-stick coating, a hydrophobic and oleophobic coating, a mar-proof coating, a high temperature resistance coating and a stain resistance coating. A formed polysiloxane coating is transparent, accordingly, the coated kitchen utensil not only has aesthetic property, safety and excellent performance, but also has higher heat resistance, the maximum heat resistance temperature can reach 1800 DEG C, and the use process is safe; the coated kitchen utensil has ultrahigh rigidity, the rigidity can reach 9 H+, and the coated kitchen utensil is mar-proof, high in antifouling ability, easy to clean and excellent in anti-corrosion performance; a coated pot cover has hydrophobic property and oleophobic property, and people can better observe the cooking condition of the food in a pot; the method that the polysiloxane is applied to the kitchen utensil is simple and easy to operate, the sanding process of the common coating method can be omitted, the production efficiency is improved, and the problems of environmental pollution and noise caused by the sanding process are further reduced.

The invention belongs to the field of optical elements for optical energy attenuation, and particularly relates to a low-reflection and neutral-density filter. The low-reflection and neutral-density filter comprises a substrate and a membrane system layer arranged on the substrate in a plated mode. The membrane system layer is of a G|AMB structure or a BM|G|MB structure, wherein M is a metal layer for achieving transmission attenuation and neutral transmission, G is the substrate, A and B are membrane stacks working cooperatively to achieve wide-spectrum metal antireflection and are each formed by dielectric layers and the metal layers M in an alternately plated mode, the metal layers M are made of Ni-Cr or Ni-Cr-Fe, and the dielectric layers are made of TiO2 or SiO2 or Al2O3 or HfO2 or Ta2O5 or Nb2O5. The low-reflection and neutral-density filter has both low reflection and transmission spectrum neutrality in a wide spectral range.

The invention discloses an electronic lock capable of detecting the rotating direction of a lock cylinder and a working method for the electronic lock. The electronic lock mainly comprises a lock body and the lock cylinder, wherein a rotating shaft of the lock cylinder is fixedly provided with at least one convex key; at least one position sensor is arranged at a position, corresponding to the convex key, of the lock body; a rocker arm is arranged close to the position sensor on the lock body, and points to the direction of the rotating shaft of the lock cylinder, and the rocker arm is pushed by the convex key when the rotating shaft of the lock cylinder is rotated so as to swing to two sides and trigger the position sensor. According to the electronic lock disclosed by the invention, the rotating direction of the lock cylinder is detected by matching the convex key, the position sensor and the rocker arm, the unlocking or locking state of the lock cylinder is judged based on the structure, and the electronic lock has the advantages of simple structure, low cost, flexible implementation method, high reliability and the like.

The invention relates to a method for producing frosted glass, which comprises the following steps: firstly, selecting original white glass sheets, jointing the two sheets, and sealing four edges by tapes; putting the glass into a weak acid pool for soaking for 2 minutes; conveying the glass into a corrosion pool for frosting; clearing the frosting liquid after the glass is frosted, and drying the glass; removing the sealing tapes at the four edges of the glass; then, adopting a silk screen to print the preliminarily designed glass pattern on one surface, air-drying the glass for 2 hours, andthen, conveying the glass into a dryer for drying; pasting a protective film on the glass surface which is not printed with the pattern; scrubbing the surface which is printed with the glass pattern with weak acid liquid; soaking the glass into the corrosion liquid for 80-120 minutes; putting the glass into a sodium hydroxide solution for cleaning; and then, conveying the glass into a cleaning and drying machine for cleaning and drying to obtain a finished product. The patterned glass which is produced by the method of the invention has uniform and fine etched depth, strong aesthetic feeling of the pattern, better quality, simple processing method and environment protection, and can greatly reduce the production cost in the production process.

The invention discloses an ionic flexible touch sensor. A sensor comprises a plurality of conducting layers, a plurality of insulating layers and two packaging layers. The mutiple conducting layers are arranged in a laminated manner. One insulating layer is arranged between every two conducting layers in a laminated manner and the two packaging layers are respectively packaged on the upper surfaceand the lower surface of the conducting layers arranged in the laminated manner; wherein the conductive layer is made of an ionic conductive flexible gel material, and the insulating layer and the packaging layer are respectively made of an insulating high-molecular polymer material. The ionic flexible touch sensor can be integrated with a contact position measurement module and a contact pressure / tensile force detection module. A complete set of complete structural design and manufacturing technical solution of the ionic flexible touch sensor is provided, and a product has the advantages ofhigh optical transparency, deep flexibility, low manufacturing cost, high position measurement resolution, high sensitivity and the like.

The invention discloses processing technology for a log crosscutting wood floor, which comprises the steps of: (a) crosscutting blanking; (b) drying; (c) assembly; (d) surface treatment; and (e) cutting and slotting. The log crosscutting wood floor only has one layer, a thickness of between 2 and 3cm, and high strength and good wear resistance; moreover, the processing technology directly crosscuts a peeled core material and then assembles, retains the natural texture of trees to a great extent, has strong aesthetic feeling due to the fact that joints are also of arc shapes, and meets the demand of high-grade users; in addition, the processing technology has low requirement on the diameters of trunks or branches or roots of logs, almost does not generate waste materials during the processing, and helps to save the timber.

The invention belongs to the field of coatings and particularly relates to a cationic photocurable coating for a transfer film. The coating is prepared from the following components in percentage by mass: 35-70% of epoxy resin, 25-60% of thermocurable acrylate, 1-5% of a cationic photoinitiator, 2-4% of a free radical photoinitiator and 0.1-0.2% of auxiliaries. The cationic photocurable coating for the transfer film provided by the invention is high in curing speed. After ultraviolet irradiation, double bonds in thermocurable acrylate are quickly cured and the viscosity of the coating is increased, and meanwhile, the cationic initiator initiates the epoxy resin for cationic polymerization. After evacuation of ultraviolet, the coating can be further cured so as to accomplish deep curing. In the process, the ring opening effect of the epoxy resin compensates the volume shrinkage generated in the acrylate polymerization process, so that the volume shrinkage of the system is greatly reduced.

The invention relates to an intelligent control apparatus and method for a switch cabinet electric driver; the apparatus comprises a central processing unit, a motor control unit and a switch value control unit; the motor control unit comprises a motor control module and a protection module; the motor control module and the protection module are connected with the central processing unit separately; the switch value control unit comprises a switch value input module; and the switch value input module is connected with the central processing unit after the switch value input module is subjected to photocoupling. The intelligent control method comprises the steps that the motor control unit controls the electric driver to perform a corresponding operation according to a control instruction, and the motor control unit monitors the operating current maximum value and operating time in real time; when the operating current maximum value is greater than a preset locked-rotor current or the operating time is longer than a preset operating time, the motor is locked and an alarm is sent out; and if the motor runs normally, the operating current maximum value, the operating time and the voltage are recorded, and through a logical operation, the preset locked-rotor current and the preset operating time are adjusted in a self-adaptive manner. The control apparatus and the control method are highly centralized and high in intelligent level.

The invention discloses a Jianzhan porcelain reduction bar as well as a preparation method and a Jianzhan porcelain firing method thereof. The Jianzhan porcelain reduction bar is prepared from the following components in parts by weight: 38-42 parts of rosin, 7-13 parts of abietic acid, 8-12 parts of oil of turpentine, 17-23 parts of pine wood flour, 4-6 parts of wild loquat root powder, 4-6 partsof red-stone sticky powder, 5-7 parts of elm bark powder, 4-7 parts of corn starch, 8-13 parts of charcoal dust and 18-22 parts of water. The Jianzhan porcelain reduction bar disclosed by the invention is stable in component and excellent in combustibility. A certain amount of Jianzhan porcelain reduction bar is added in a Jianzhan porcelain firing process according to needs, combustion conditions and a reducing atmosphere in a kiln can be accurately controlled, the quality stability of the finished Jianzhan porcelain is greatly improved, and hare's fur or oil drop Jianzhan porcelain with beautiful stripes can be conveniently fired.

The invention provides a metal-imitation wire-drawing film and a production process thereof, and belongs to the technical field of decorative film materials. The metal-imitation wire-drawing film comprises a PET (Polyether) base film layer, an aluminum-plated layer and an adhesive layer, wherein drawing wires are arranged on the upper surface of the PET base film layer; the aluminum-plated layer is arranged on the upper surface of the PET base film layer; the adhesive layer is arranged on the lower surface of the PET base film layer. A production process of the metal-imitation wire-drawing film comprises the following steps: step one, preparing a PET base film; step two, arranging the drawing wires on the upper surface of the PET base film; step three, removing residual polyester resin particles on the PET base film; step four, performing corona on the upper surface of the PET base film; step five, plating aluminum in vacuum; and step six, coating the adhesive layer. The metal-imitation wire-drawing film is good in metal-imitation wire-drawing effect, flat and even in surface, high in beauty, simple in production process, low in production cost and beneficial to wide popularization and application.

The invention provides a copying welding device free of a blind area. The copying welding device free of the blind area comprises a welding gun copying adjusting frame. A welding gun is arranged on the welding gun copying adjusting frame. The welding gun copying adjusting frame enables the welding gun to swing. The invention further provides a copying welding method free of the blind area. The copying welding method free of the blind area comprises the step of welding a curved-weld-joint through the welding gun. One motor is used for driving the welding gun to swing, and copying welding of theweld joint in any shape is conducted through the welding gun by the adoption of an elastic device; the turning tendency of a magnetic base can achieve copying on a weld joint of a workpiece in a gapless manner; welding can be conducted on a non-horizontal weld joint through the magnetic force, generated by a magnet on the magnetic base, acting on the base plate of the workpiece; if obstacles exist on the two sides of the weld joint in the length direction, welding can be stilled conducted at the starting position and ending position of the weld joint, manual follow-up repairing welding is notneeded, the appearance is consistent, and the attractiveness is high; copying welding of different weld joints can be achieved, operation is easy, and the functional cost is low.

The invention discloses an ultrathin wall-hanging type air purifier. The ultrathin wall-hanging type air purifier is characterized in that a tabular body is included, and the body comprises a shell and a control assembly; the shell comprises an upper cover plate and a lower cover plate, and at least one side face of the shell is provided with an air inlet, and an air filtration assembly is arranged in the air inlet; an air suction and exhaust device is arranged between the air filtration assembly and a bottom plate of the lower cover plate of the shell, an air suction opening of the air suction and exhaust device is attached to the air filtration assembly, and an air outlet of the air suction and exhaust device is formed corresponding to an exhaust outlet in the side face of the shell. By means of the ultrathin wall-hanging type air purifier, the working efficiency of the purifier is improved, the purifying effect is improved, and the attractiveness is higher.

The invention relates to an artificial wetland warm season and cold season plants interplanting configuration method in subtropical areas, naturally and alternately growing characteristics of warm season and cold season plants are utilized, warm season plants are harvested firstly when the overground parts of autumn plants are withered and yellow, then cold season plants are interplanted between the plants, the overground parts of the warm season plants are dead when in cold seasons, the clod season plants grow naturally and can be harvested when in late spring, and at the time, the overground parts of the warm season plants have grown. According to the invention, the season changing problem of the plants can be solved, the warm season plants do not need to be changed, the microenvironment conditions nearby the root are not changed, the sewage treating effect can be ensured, the influence of seasons and climates is less, the aspect change of the plant is increased, and the stronger view effect can be achieved.

The invention relates to the modified wooden foot line which contains the backing layer. It is characterized in that: set the damp proof course, the texture printing layer which is used to form the garnish texture and the surface fender paint sequentially on the backing layer. The favorable effect of this utility model is: after setting the damp proof course and the texture printing layer, cover the surface fender paint for protecting. Therefore, the texture and the oil paint are fused to an integrality to get the high-end low energy-consuming foot line which has strong aesthetic feeling, good adhesion, high asperity and texture with natural color. The high-quality life is guaranteed as saving the large quantity of natural wood, which maintains the natural ecological balance.

The invention relates to a showing stand, in particular to a multifunctional showing stand for mosaic tiles. The aesthetics of the tiles can be enhanced by the aid of the multifunctional showing stand for the mosaic tiles. The multifunctional showing stand for the mosaic tiles comprises a base, an electric push rod, a swing seat, a support, a first lifting rod, a cylinder, a piston, a wedge block, a first slider, a first slide rail, swing rods, a second lifting rod, second sliders, first connecting rods, illuminating lamps, second connecting rods, second slide rails, elastic bodies, pressure plates, a support plate and a showing stand. The support is arranged on the top of the base, the first slide rail is arranged at the inner bottom of the support, and the first slider is arranged on the first slide rail. The multifunctional showing stand has the advantages that good shown tile aesthetic effects can be realized by the multifunctional showing stand; the showing stand is of a trapezoidal structure and accordingly can bring convenience for people when people view and select different kinds of tiles.

The invention discloses a mold for crocheting a garment collar lapel. The mold comprises a bottom plate, a middle plate and a surface plate, wherein a first threading groove is formed in the bottom plate along the edge of the lapel to be processed, a second threading groove is formed in the middle plate and matched with the first threading groove in the bottom plate, a shape pad is arranged at the edge on one side of the second threading groove, and an opening is formed in the surface plate according to the shape pad and the second threading groove and is not completely in contact with the shape pad. One side of the bottom plate, one side of the middle plate and one side of the surface plate are adhered to soft materials. When laminating is performed, the shape pad on the middle plate penetrates through the opening, and the first threading groove and the second threading groove correspond to each other and are communicated with the outside through the opening. The invention further relates to a using method using the mold for crocheting the garment collar lapel to produce the garment collar lapel. The using method is simple in operation, capable of improving stability of lapel quality and increasing production efficiency greatly and worthy of popularization.

The invention discloses a corrugated steel web-based steel-wood combined box girder which comprises a wood top plate, a wood bottom plate positioned right below the wood top plate, and steel webs distributed between the wood top plate and the wood bottom plate; the longitudinal lengths of the wood top plate and the wood bottom plate are both consistent with the span of the constructed box girder, and the widths of the two are both consistent with the cross bridge width of the constructed box girder; the wood top plate and the wood bottom plate are both laminated wood plates, each laminated wood plate is formed by assembling a plurality of strip-shaped wood plates side by side, the plurality of strip-shaped wood plates are fastened and connected as a whole through a plurality of prestressed steel bundles arranged in cross bridge direction; the plurality of strip-shaped wood plates are arranged on the same one plane and distributed in longitudinal bridge direction; and two steel webs are both of corrugated steel plates. The corrugated steel web-based steel-wood combined box girder is reasonable in structure design, convenient to transport and install, shorter in construction period, small in influence by weather and good in use effect, and can solve various problems of the existing corrugated steel web prestressed concrete combined box girder.

The invention provides a wooden door paint spraying device with an all-directional rotating function. The wooden door paint spraying device comprises a workbench, wherein a first vertical plate is fixedly installed on one side of the top end of the workbench; a first rotating mechanism is installed on one side of the first vertical plate in a penetrating mode; electric sliding blocks are slidablyconnected to the interiors of two sliding grooves; the mounting parts of the two electric sliding blocks are fixedly connected with two first supporting columns through elastic columns; electric pushrods are embedded in the two first supporting columns; a threaded shaft is rotationally connected between two square connecting seats; and one end of the threaded shaft is fixedly connected with the output end of a stepping motor arranged on the surface of one of the square connecting seats. The wooden door paint spraying device has the beneficial effects that the first rotating mechanism and a second rotating mechanism are arranged, a worker only needs to rotate a hand wheel, then a wooden door can be rotated, the paint spraying surface is very convenient to replace, the operation is simple,time and labor are saved, meanwhile, the wooden door which is placed in a suspended mode is convenient to spray paint, and the situation that the paint spraying surface is in contact with the table surface, and consequently the paint spraying year is uneven is avoided.

The invention provides a floor block connecting structure, which comprises a blind hole arranged at the side edge of the floor block, and a wood plug strip which can be plugged into and clamped to be fixed in the blind hole. The invention also provides a floor block, which comprises a floor body, wherein the side surface of the floor body is provided with more than one blind hole distributed along the length direction of the side surface, the floor bodies are spliced together via the wood plug strip which can be plugged into and clamped to be fixed in the blind hole. The invention uses the wood plug strip and the blind hole to splice the floor blocks, the blind hole can be processed by a punching machine very conveniently, the wood plug strip can be independently manufactured in batches, the prior complicated process of milling tongue-shaped objects matched with a clamping groove is omitted, and the production efficiency is greatly increased.

The invention relates to the technical field of pipeline construction, in particular to a counterpart device for a large-diameter pipeline; two relatively arranged clamping blocks are arranged in a square frame; a jack is arranged between each clamping block and the square frame, and the relative sides of the two clamping blocks are provided with arc-shaped surfaces, the jack pushes the two clamping blocks to clamp tightly, so that the arc-shaped surfaces of the two clamping blocks are closed and formed with a clamping cavity for clamping the pipeline; and each clamping block is sequentially provided with a plurality of rollers whose curved surfaces are aligned with the curved surfaces of the arc-shaped surfaces along the curved surface of each arc-shaped surface; during the use, the pipeopenings of the two pipelines to be in counterpart are arranged between the two clamping blocks; and then the jack is used for pushing the two clamping blocks to fold so as to complete the pipeline counterpart, and since the rollers are arranged on the arc-shaped surfaces, the rollers can rotate in a clamping cavity; the pipeline is convenient to weld; and a roller transportation chain is arrangedbehind the counterpart device, so the pipeline counterpart speed can be quickened greatly; and the counterpart quality can be improved.