155results about How to "Improve appearance quality" patented technology

The application discloses a stainless steel plate surface treatment method, which comprises the following steps: S01 silk printing operation: water-based ink is screen printed on the stainless steel plate after a pretreatment operation, and is used after a curing reaction; S02 interface modification operation: the stainless steel plate is immersed in an interface modification solution to perform an interface modification reaction; and S03 etching operation: the stainless steel plate is placed in an electrochemical corrosion device containing an etching solution to perform an etching reaction, so that a smooth transition stainless steel plate surface treatment pattern is formed. The stainless steel plate surface treatment method avoids the formation of relatively sharp and clear corners at the etching edge interface of the stainless steel plate, and avoids the residual of metal ions on the ink at the etching edge interface after etching, thereby avoiding the heavy metal pollution of wastewater in the subsequent glue removal operation. After the surface treatment, the etching surface of the stainless steel plate is naturally transitioned to the original surface texture of the stainless steel plate base material, the appearance quality is higher, and the user satisfaction is improved.

An automatic tape feeding device of a double-needle sewing tape machine comprises a main support, a feeding unit, and a cutting mechanism. The main support comprises a vertically arranged main support connecting plate and a lower main support positioning plate. The feeding unit comprises a feeding roller, a driving motor, a clamping cylinder, and a feeding bearing. The driving motor drives the feeding roller to rotate. The clamping cylinder is installed below the main support. The feeding bearing is connected to the piston rod of the clamping cylinder and is located below the tape. The feeding bearing and the feeding roller clamp the tape through the clamping cylinder, thereby achieving active tape feeding and length adjustment. The guide unit is integrated into the main support and is located behind the machine needle, which is used to adjust the movement path of the tape. The cutting mechanism is located in the front part of the main support and is used for precise cutting of the tape. The advantages are that through the coordinated linkage of the guide unit, the feeding unit, and the cutting mechanism, the automatic and precise feeding of the tape during the shoe changing process is realized, manual intervention is not required, production interruptions caused by traditional manual operation are avoided, and the sewing efficiency of the double-needle sewing tape machine is greatly improved.

The embodiment of the application provides an automatic assembly device for a rear axle of a large mine equipment, and belongs to the field of mine machinery assembly. The automatic assembly device comprises a following positioning tool, the following positioning tool is used for placing and positioning a rear axle assembly, and a positioning pin hole for butt joint is arranged at the bottom of the following positioning tool; an attitude adjusting AGV is used for moving to the lower side of the following positioning tool loaded with the rear axle assembly, mechanically butting jointing and locking with the following positioning tool, bearing the weight of the rear axle assembly, and adjusting the six-degree-of-freedom position of the rear axle assembly. The combination of the AGV and the positioning tool realizes accurate positioning, transportation and multi-angle fine adjustment of the rear axle, and has the characteristics of simple operation and high efficiency.

This utility model relates to a filter press with an easy-to-disassemble filter screen, including a motor, a housing, a filter screen located on the rear side of the housing, and a feed hopper located on the top of the housing and communicating with the inside of the housing. The motor is fixedly installed with an auger inserted into the housing and includes a disassembly and assembly part that is detachably connected to the right side of the housing. The filter screen is located on the disassembly and assembly part. By adopting the above solution, a filter press with an easy-to-disassemble filter screen is provided, which facilitates cleaning the filter screen by removing the disassembly and assembly part from the housing.

The invention discloses a building road and bridge pouring construction process and device. The building road and bridge pouring construction device comprises a plurality of road and bridge pouring formwork bodies which are transversely spliced together. Each splicing structure is arranged between every two adjacent road and bridge pouring formwork bodies and comprises a splicing block fixed to the surface of one side of the corresponding road and bridge pouring formwork body, a splicing groove formed in the surface of the other side of the corresponding road and bridge pouring formwork body and corresponding to the splicing block, and an outer side type locking structure arranged between the splicing block and the splicing groove; each sealing structure is arranged between every two adjacent road and bridge pouring template main bodies; according to the building road and bridge pouring construction technology and device, through the innovative splicing structure and sealing design, it is avoided that penetrating type screw holes are formed in the splicing positions of the formworks, the problems that concrete leaks from the screw holes and slurry leaks in the pouring process are fundamentally solved, the defects of honeycombs, pitted surfaces and the like on the surface of the concrete are effectively prevented, and the construction quality is improved. The appearance quality of the road and bridge structure is remarkably improved, the road and bridge structure is smoother and more attractive, and the sealing performance of the formwork is enhanced.

This utility model relates to the field of food processing equipment manufacturing technology, and in particular to a composite motion drive mechanism for a gluten roll winding device, which consists of a torque output unit and a drag force output unit. The winding assembly performs circumferential rotation under the drive of the torque output unit; the unloading cylinder, driven by the drag force output unit, completes axial reciprocating movement, causing the formed gluten to detach. The drag force output unit uses a transmission shaft as its power source, and through the cooperation of a cam mechanism, a multi-component transmission mechanism, a rocking component, and an elastic reset component, converts the power into the reciprocating rocking motion of the rocking component, thereby driving the unloading cylinder to move synchronously. Thus, on the one hand, the composite motion drive mechanism has a relatively simple design structure, and thanks to the operating characteristics of the cam mechanism, the unloading cylinder can achieve non-rigid unloading force application; on the other hand, by adjusting the contour curve of the cam mechanism and the parameters of the multi-component transmission mechanism, and with the assistance of the elastic reset component, the gluten roll winding device can adapt to various unloading requirements.

The utility model relates to the technical field of welding, and concretely discloses a device for controlling the welding gap of a T-shaped joint of a steel structure bridge, which comprises a base body, a lifting device and a clamping mechanism, the lifting device is arranged on the base body, the clamping mechanism is arranged at the bottom of the lifting device, an annular structure bracket is arranged on the base body, a plurality of bracket supporting legs are welded on the annular structure bracket, and a variable magnetic force support is arranged at the bottom of the bracket supporting leg; the clamping mechanism comprises a mounting block, a sliding groove is arranged on the mounting block, two sliding wheels are slidably arranged in the sliding groove, a clamp connecting rod is arranged on the sliding wheel, and the clamp connecting rod is connected with a rib plate clamp; the device further comprises a screw rod, the screw threads at the two ends of the screw rod are opposite in rotation direction, and the screw rod is threadedly connected with the two clamp connecting rods. The utility model has the advantages of avoiding welding leakage, controlling welding seam deformation, reducing internal defects, improving welding quality, reducing welding cost, being easy to operate, avoiding damage to the base material and the like compared with the traditional process.

This invention provides a molding die for a composite satellite fairing, comprising: a main female mold (1), a front support base (2), and a rear support base (3); the main female mold (1) includes a molding curved template (4), a porous reinforcing rib plate (5), base mounting feet (6), and a back venting structure (7). This invention enables uniform heating of the double-curvature structure, thereby reducing curing deformation and improving the appearance molding quality. This invention designs the size of the vent holes in the back reinforcing ribs of the large-size fairing mold through iterative analysis of the thermal flow field. As the distance in the heat flow direction increases, the cross-sectional area of ​​the vent holes gradually decreases, allowing more heat flow to accumulate in the mold's location away from the heat source, reducing the temperature gradient on the back of the mold in the heat flow direction, resulting in a uniform mold surface temperature and reduced curing deformation.

This utility model relates to the field of drum dryers and discloses a drum-type black tea dryer, including a protective shell. A base is fixedly connected inside the protective shell. A rotating shaft is fixedly connected to the top right side of the protective shell. An arc-shaped drying chamber cover is rotatably connected to the top of the rotating shaft. A support is fixedly connected to the top of the base. A feeding cylinder is fixedly connected to the top of the support. A fan is fixedly connected to the feeding cylinder. A feeding port is fixedly connected to the top of the feeding cylinder. A conical cylinder is rotatably connected to the right side of the feeding cylinder. In this utility model, a starting motor drives a transmission rod to rotate. The transmission rod drives a turning plate to turn the black tea leaves in a cylindrical sieve. During the turning process, black tea dust falls through the cylindrical sieve into a second collection box, while high-quality black tea leaves that cannot pass through the cylindrical sieve fall into a first collection box, thus completing the screening of the dried black tea and improving its appearance quality.

The invention belongs to the technical field of mosquito-repellent incense processing equipment, and particularly relates to mosquito-repellent incense baking equipment and a baking method.The mosquito-repellent incense baking equipment comprises a sliding mechanism laid on the ground, a baking box is arranged on the periphery of the sliding mechanism, a baking mechanism is arranged in the baking box, and one side face of the baking box is slidably connected with an electric single door; an isolation mechanism is arranged in the baking box, and a temperature sensor is arranged in the baking box. According to the baking equipment, through cooperative work of the sliding mechanism and the isolation mechanism, the baking mechanism can be automatically and accurately transferred among the low-temperature preheating area, the medium-temperature constant-dryness area and the high-temperature shaping area, and the whole process is completed in the baking box in a closed mode; the problems of non-uniform moisture content, deformation or pollution caused by the fact that mosquito-repellent incense makes contact with external unstable air due to manual transfer in a traditional process are solved, the temperature of each temperature zone is independently controlled, it is ensured that the mosquito-repellent incense follows the optimal temperature rise curve, and therefore the strength, ignition performance and appearance quality of the baked mosquito-repellent incense are highly stable.

The utility model provides a kind of formwork for station internal stand column diameter expansion construction, including steel hoop assembly and wooden formwork assembly;The wooden formwork assembly includes two semicircular templates, and two semicircular templates are formed into a whole circle by surrounding and splicing;The template includes melamine board layer, plywood layer, support batten layer and assembled batten layer from inside to outside in turn;The melamine board layer and plywood layer are fixed by adhesive method, for making the template inner surface even;The support batten layer is arranged around the outer periphery of the plywood layer by adhesive method, for whole circle support;The assembled batten layer is wrapped outside support batten layer for constraining the overall shape of the template;The steel hoop assembly includes a pair of semicircular steel hoops arranged in pairs, a pair of semicircular steel hoops are used for locking outside wooden formwork assembly, and each steel hoop assembly is arranged equidistantly along the length direction of wooden formwork assembly.The template has the advantages of improving construction efficiency and ensuring the appearance quality after stand column diameter expansion.

The utility model relates to the technical field of rubber sheet production, in particular to rubber sheet and cloth pressing equipment. According to the technical scheme, the device comprises a fixing frame and pressing rollers, the two pressing rollers are rotationally installed on one side of the outer surface of the fixing frame from top to bottom, and two upper flattening rollers and two lower flattening rollers are rotationally installed on the side, away from the pressing rollers, of the outer surface of the fixing frame and close to the upper surface and the lower surface from top to bottom correspondingly; and spiral lines are symmetrically arranged on the outer surfaces of the two upper flattening rollers and the two lower flattening rollers. The rubber sheet and the cloth can be flattened before being pressed, wrinkles on the rubber sheet and the cloth are eliminated, the rubber sheet and the cloth can be fully attached when being pressed, the binding force between the rubber sheet and the cloth is improved, the rubber sheet and the cloth are prevented from being separated, the service life is prolonged, and the production cost is reduced. And meanwhile, the flatness of the surface of the laminated sheet is improved, and the appearance quality is improved.

This utility model discloses a water-cooled pressure cooking appliance, including a pot body and a pot lid. The pot lid is provided with a water-cooling cavity. The water-cooled pressure cooking appliance also includes a water tank detachably installed on the pot body or the pot lid. The bottom wall of the water tank is provided with a connecting port, which communicates with the water-cooling cavity. When the water tank is removed, coolant can be added to the water tank through the connecting port. The water tank is also provided with a baffle wall protruding towards the inside of the water tank, surrounding the outer periphery of the connecting port. When the water tank is inverted, as the user adds coolant to the water tank, the liquid level in the water tank gradually rises until it contacts the baffle wall. At this time, the coolant and the baffle wall form a water seal, and some air is trapped in the cavity area. The coolant does not completely fill the cavity area, thus strictly controlling the amount of coolant in the water tank. Furthermore, when the heated coolant flows back into the water tank, the risk of coolant overflowing from the vent is reduced because the coolant is far from the vent.

The efficient cutting and separating device comprises a left inclined sliding table, a right inclined sliding table, two arc-shaped tensioning plates, a cutting motor, a cutting wheel and a supporting frame, two parallel rotating shafts are arranged between the left inclined sliding table and the right inclined sliding table, the two arc-shaped tensioning plates are oppositely arranged, rotating holes are formed in the lower ends of the arc-shaped tensioning plates, and the arc-shaped tensioning plates are arranged in the rotating holes. The two arc-shaped tensioning plates are rotationally connected with the rotating shaft through the rotating holes, annular grooves are formed in the two ends in the rotating holes, and torsion springs are fixedly connected between the annular grooves and the rotating shaft. According to the efficient cutting and separating device for goose slaughtering, not only can the goose head and the goose body be efficiently separated, but also the efficiency of goose slaughtering operation and the product quality are improved, and remarkable progress is achieved.

This invention discloses a tie-rod-free hydraulic T-beam formwork for highway precast beams, comprising two sets of outer molds and a base. The two sets of outer molds are arranged opposite each other, and the base is positioned between the two outer molds. Each set of outer molds includes multiple parallel outer frames and side steel plates. The outer sides of the multiple outer frames of each set of outer molds are connected by a through beam. Side steel plates are respectively provided on the opposite sides and top surfaces of the two sets of outer molds, and a bottom steel plate is provided on the top of the base. Each outer frame is fixed on a slider, which is mounted on a sliding block perpendicular to the through beam. Each slider is connected to its corresponding sliding block via a hydraulic cylinder I. One end of a hydraulic cylinder II is hinged to the through beam at the position of each transverse diaphragm of the T-beam, and the other end of the hydraulic cylinder II passes through the side steel plate and contacts the concrete. This invention has a simple structure, is easy to operate, can reduce production costs, improve production efficiency, has good safety, and can ensure the overall appearance quality of the precast beam.

This utility model discloses a dustproof device for tea packaging equipment, including a packaging box. A filter box is fixedly connected to one side of the packaging box, and a feed pipe is fixedly connected to the top of the packaging box. A lifting frame is movably connected inside the packaging box. A vacuum cleaner is fixedly installed on one side of the packaging box via a connecting plate. A dust suction hood is fixedly connected to the output end of the vacuum cleaner, and one end of the dust suction hood is connected to the filter box. A filter screen is slidably connected inside the filter box. A dust suction plate is fixedly connected to the inner wall of one side of the packaging box, and the dust suction plate is connected to the filter box. The dustproof device for tea packaging equipment of this utility model adopts a closed negative pressure dust removal system, which captures the dust generated by the tea in real time during the feeding process, realizing "dust control at the source," effectively preventing dust from accumulating inside the equipment, reducing dust residue in the tea, and achieving effective dust prevention.

The utility model discloses an adjustable adaptive header connecting structure which comprises a fixing frame, and one end of the fixing frame is movably provided with a middle section connecting frame through a first pin shaft. A rectangular frame is movably mounted at one end of the middle-section connecting frame through a second pin shaft; when the header connecting structure is used, spring portions on the two Z-shaped frames are aligned to hook portions of a tractor, hooks of the tractor are inserted into the springs and the inserting holes, the middle connecting frame, the fixing frame and the rectangular frame can rotate, the header connecting structure can adapt to the hook portions of the tractor with different heights, the application range is wide, and the practicability is high. The angle between the header connected to the fixing frame and the ground is not affected, when the road surface is uneven and the two Z-shaped frames move up and down on the hook, the auxiliary rotating assembly makes contact with the hook part, the spring plays a buffering role, the two Z-shaped frames are prevented from directly colliding with the hook part, and the appearance quality of the Z-shaped frames and the hook is protected.

This utility model discloses a water heater repair cover and a water heater. The water heater repair cover includes a first cover body and a second cover body. The first cover body has a first mating end with an insertion slot and a fastener located in the insertion slot. The second cover body has a second mating end with an insertion long side, a fastening hole on the insertion long side, and a support structure. The insertion long side is inserted into the insertion slot to achieve an insertion fit in a first direction, and the fastener is inserted into the fastening hole to achieve a fastening fit in a second direction. The water heater repair cover provided by this utility model includes a split design of the first cover body and the second cover body, and adopts an assembly method combining insertion and fastening, which simplifies the assembly method, reduces manufacturing costs, and improves appearance quality. Furthermore, by using a support structure that extends into the insertion slot and is supported on the inner wall surface forming the insertion slot, it can prevent the first cover body or the second cover body from collapsing, thereby improving assembly stability.

This invention discloses a horizontal omnidirectional adaptive inertial capacitance damping system and a biomimetic wind turbine tower. The damping system includes several mass blocks, with a sleeve fixed below each mass block. Guide rods are paired and slide relative to the sleeve at both ends. The outer ends of the two guide rods slide on a first circular slide rail on the inner wall of the wind turbine tower. A disc spring is fitted on the outer side of the sleeve, and the inner end of the spring is linked by a first gear transmission unit connected to a first inertial capacitance flywheel located inside the sleeve. A second gear and rack transmission unit perpendicular to the guide rods is located above the mass blocks. A bracket perpendicular to the guide rods is located below the sleeve, sliding on a second circular slide rail on the inner wall of the wind turbine tower. The sleeve slides on the bracket. The second gear and rack transmission unit is connected to the second inertial capacitance flywheel located on the bracket. This invention can improve the adaptability and damping efficiency of highly flexible wind turbine towers to complex multidirectional wind-induced and seismic vibrations.

The invention discloses a rigid-flex board blind scooping uncovering method and a rigid-flex board, and the method comprises the following steps: 1, providing a first PP layer, and pasting an uncovering film on one side surface of the first PP layer; step 2, performing laser treatment on the uncovering film and the first PP layer from one side with the uncovering film; step 3, providing a main board and attaching a cover film on the surface of the main board; 4, providing a second PP layer, and aligning and pressing the second PP layer, the first PP layer and the main board; 4, the tearing hand is fished through a milling cutter; step 5, using a milling cutter to control depth blind fishing; and 6, forming a hand tearing position in the uncovering area of the second PP layer, and completing uncovering. The first kerf is formed in the first PP layer, and the second kerf is formed in the second PP layer, so that the problems that the inner-layer mainboard is damaged by deep laser and glass fibers cannot be cut off due to shallow laser when the cover is opened by laser are solved.

This invention belongs to the field of food processing technology, specifically relating to a fermented frozen dough food composition and its application, as well as fermented frozen dough. This invention utilizes flour with a wet gluten content of 20-24 wt% and an extensibility of 140-160 mm at 45 minutes, while controlling the pre-proofing process to ensure the volume after proofing is 1.4-1.6 times the volume before proofing. This improves the quality of fermented frozen dough foods without the use of quality improvers, solving problems such as shrinkage, collapse, wrinkling, stickiness, and lack of softness in traditional Chinese fermented frozen dough foods that require thawing and proofing. The resulting frozen dough products can be directly heated without thawing and proofing, exhibiting no shrinkage or collapse after heating, a smooth surface, and high scores in appearance and taste. This technology, which eliminates the need for improvers, is safer and has higher market acceptance. It is suitable for producing frozen steamed buns, dumplings, twisted rolls, and leavened pancakes, among other traditional Chinese fermented dough foods, and has a wide range of applications and high market value.

The application relates to a flattening device for carton production, which comprises a frame body, a conveyor for conveying carton boards arranged on the frame body, a plurality of guide rollers arranged along the length of the conveyor in sequence, a flattening mechanism arranged on the frame body and used for flattening the carton boards, characterized in that a heat source roller is arranged above the conveyor and used for hot pressing the carton boards, and a driving member is arranged on the frame body and used for driving the heat source roller to rotate. The flattening device can be used in cooperation with the heat source roller, the driving member and the flattening mechanism, the carton boards can be hot-pressed before being flattened, the carton boards are subjected to the joint action of heat and pressure, the flexibility of the carton boards is reduced, the resilience of the carton boards is weakened, the required pressure and time for subsequent flattening are reduced, the carton boards can reach the flatness requirement through one or a small number of flattening operations, and the production efficiency is improved.

The application relates to the technical field of vehicle interiors, and provides a gear shifting slide plate structure and a vehicle. The gear shifting slide plate structure comprises a base capable of being mounted on a sub-instrument panel, and a sliding part slidingly arranged on the base, wherein the sliding part is provided with a plug-in hole for a gear shifter handle to pass through, the base is provided with an avoiding hole capable of avoiding the gear shifter handle, a ball assembly is arranged between the sliding part and the base, the gear shifter handle moves relative to the sub-instrument panel, and the sliding part can slide relative to the base through the ball assembly. According to the gear shifting slide plate structure, the ball assembly is arranged, the resistance during gear shifting is small, gear shifting operation is convenient and fast, and the customer satisfaction can be improved.

The utility model relates to the technical field of metal wires, and discloses a metal wire on-line weighing and automatic labeling device which comprises a hooking and moving machine rack and further comprises a moving table and a conveying assembly, the conveying assembly is arranged at the right end of the hooking and moving machine rack, the moving table is arranged at the right end of the hooking and moving machine rack, and an induction device is arranged at the left end of the moving table. A photoelectric switch support is fixedly connected to the interior of the movable table, a photoelectric switch body is fixedly connected to the interior of the photoelectric switch support, a weighing sensor is fixedly connected to the interior of the movable table, a weighing table is fixed to the top of the movable table, the weighing sensor makes contact with the weighing table, and a metal wire material roll is arranged in the weighing table. A metal wire material roll is weighed through the weighing table and the weighing sensor, and label paper is pasted and loaded on the metal wire material roll through the air cylinder body and the label suction block, so that the overall production efficiency is improved, the accuracy of the weighing result is improved, the appearance quality of a product is improved, and the practicability is improved.

A spinning processing method of a super high strength steel large diameter cylindrical part, the present application realizes high precision spinning forming of the super high strength steel large diameter cylindrical part through the forming method of first pass, second pass continuous spinning + intermediate annealing + third pass, fourth pass continuous spinning by a three spinning wheel vertical numerical control powerful spinning machine. The present application is more stable in metal flow during powerful spinning process, realizes iterative optimization of product processing process precision, and the processed cylindrical part has good apparent quality and high precision. The present application defines the heat treatment opportunity in the spinning pass of the super high strength steel cylindrical part, eliminates processing stress through recrystallization annealing, improves the fiber state of the structure, restores the deformation plasticity of the spinning cylindrical part, greatly improves the spinning processing efficiency of the large diameter 31Si2MnCrMoV super high strength steel cylindrical part under the premise of ensuring the internal and external quality of the cylindrical part. The present application lays a technical foundation for the batch application of 31Si2MnCrMoV super high strength steel in the manufacture of large light weight ultra-thin high strength shell.

The invention relates to a photochromic coating. The photochromic coating comprises a component A and a component B, the component A is prepared from the following raw materials: a hydroxyl-containing acrylate copolymer and a photochromic dye; the hydroxyl-containing acrylate copolymer is prepared from the following raw materials: a copolymer monomer, wherein the copolymer monomer comprises an acrylate monomer and a styrene monomer; the equivalence ratio of a hydroxyl group of the hydroxyl-containing acrylate copolymer to an isocyanate group of the polyisocyanate curing agent is 1: (0.9-1.1). By optimizing the formula of the photochromic coating, the color changing performance and stability are remarkably improved, and the haze is effectively controlled.

The application discloses an antibacterial and antiviral fiber and a preparation method and application thereof, and belongs to the technical field of functionalized textiles. The preparation method comprises the following steps: mixing a high-molecular guanidine salt and a cationic antibacterial agent in an organic solvent to form an organic composite component liquid phase, mixing the organic composite component liquid phase with TiO2 and performing vacuum drying to form an organic-TiO2 composite functional component, then blending and granulating a first resin, an amino silane coupling agent and the organic-TiO2 composite functional component to form a functionalized master batch, and finally melt spinning a second resin and the functionalized master batch to obtain the antibacterial and antiviral fiber. The preparation method can not only endow the fiber with excellent antiviral performance and good appearance quality, but also greatly improve the antibacterial performance of the fiber.

The application relates to a cloth feeding device for a flame-retardant base cloth production tentering setting machine, and relates to the technical field of cloth processing, which comprises a bottom plate, a mounting seat is arranged above the bottom plate, a mounting frame is connected to the top surface of the mounting seat, a first motor is connected to one side of the mounting frame, a bidirectional screw rod is connected to the output end of the first motor, a moving block is threadedly connected to the outer wall of the bidirectional screw rod, a connecting rod is connected to the bottom surface of the moving block, a fixing seat is connected to the bottom surface of the connecting rod, a limiting mounting plate is arranged in the fixing seat, the device drives the bidirectional screw rod to rotate through the first motor, drives the two moving blocks to move towards or away from each other along the screw rod axis direction, further enables the fixing seat and the limiting mounting plate in the fixing seat to realize transverse movement, different-width cloths can be adapted, cloth deviation, wrinkles, sliding and other conditions caused by the fact that the base cloth width does not conform to the preset size of the limiting structure are avoided, and the cloth feeding efficiency is greatly improved.

This invention relates to a method for seamless welding of multi-cavity profiles and integrated molding of sound insulation layers, as well as a door and window frame. It belongs to the field of building door and window profile processing and manufacturing technology. By moving the injection of the sound insulation composite material before welding, pre-injection is completed when the profile cavity ports are open, solving the problem of material not flowing into the closed corner area and resulting in missing corner sound insulation filling in existing post-injection processes. By applying a heat-activated protective film to the welding end face and implementing a staged heating and pressurization process, the flow homogenization conditions of the molten material on the outer surface are improved, effectively reducing the width of the white weld seam at the corner. By selecting a sound insulation material system with a final curing temperature matching the welding residual heat temperature range, the residual heat during the natural cooling process of the corner after welding drives the final curing of the material, merging the welding process and the sound insulation layer molding process. No structural modifications to existing welding equipment are required, making it easy to promote and apply under existing production conditions.

The utility model relates to the technical field of building heat preservation, and particularly discloses a building outer wall structure which comprises mechanical self-tapping ground anchors used for penetrating through building gridding cloth to reinforce a heat preservation layer of a building outer wall. The mechanical self-tapping anchor comprises a round metal anchor disc, a round metal screw, a round metal screw expansion head, a round metal threaded sleeve and a threaded anti-shaking rod. A round metal screw is fixedly installed in the middle of the round metal anchor disc and fixedly connected with a round metal screw expansion head, and the round metal screw expansion head is far away from the round metal anchor disc. The circular metal threaded sleeve is connected with the circular metal screw rod in a plugging manner; and a plurality of threaded anti-shaking rods are fixedly mounted on the edge of the circular metal anchor disc. Safety accidents caused by a heat preservation layer of a building outer wall after an earthquake can be reduced.