49 results about "Middle segment" patented technology

The application discloses a modular segmented injection molding machine, which comprises a cylinder and a screw, the cylinder is divided into a first section, a body section and a tail section, the screw is divided into a top section, a middle section and a tail section, the inside of the cylinder is an extrusion cavity, the top section, the middle section and the tail section of the screw are respectively rotatably installed in the first section, the body section and the tail section of the cylinder, the two ends of the middle section of the screw are respectively provided with a plug-in connector and a plug-in slot, the tail end of the first section of the screw is provided with a plug-in slot, and the tail section of the screw is provided with a plug-in connector, the cylinder and the screw are respectively divided into the first section, the body section, the tail section, the top section, the middle section and the tail section, each section structure can be independently designed according to specific functions, the splicing structures among the sections are same, and the production equipment required by specific products can be realized only by butt-jointing and splicing the sections with different required functions, so that the required equipment cost is greatly reduced.

The invention discloses a method and a device for moving a middle line segment of routing in a circuit layout, a medium and equipment. The method comprises the following steps: acquiring a target line segment in the middle of a target line adopting broken line wiring in a circuit layout and a guide point outside the target line segment; determining a moving direction and a moving distance on a normal of the target line segment according to the position of the guide point; translating the target line segment for a moving distance in the moving direction to obtain a mirror line segment; searching a first intersection point of a straight line where the mirror image line segment is located and a straight line where a front line segment of the target line segment is located, and a second intersection point of a straight line where a rear line segment of the target line segment is located; the first intersection point and the second intersection point are used for replacing the first end point, connected with the front line segment, of the target line segment and the second end point, connected with the rear line segment, of the target line segment respectively, and line connection adjustment is conducted on the target line. According to the invention, other line segments can be kept relatively unchanged when the middle line segment of the routing is moved.

The utility model relates to the technical field of television accessories, in particular to a television iron frame which comprises a frame body, and the frame body comprises a rectangular frame body. The rectangular frame body comprises a first frame and a second frame; the second frame comprises a [-shaped unit, and the [-shaped unit comprises a first section, a middle section and a second section; one end of the first frame is connected with the first section through a mortise structure, and a first corner connector is arranged at the connecting position; the other end of the first frame is connected with the second section through a mortise structure, and a second corner connector is arranged at the connecting position. The first corner brace and the second corner brace each comprise an L-shaped plane angle plate, and a clamping foot is fixed to each L-shaped plane angle plate. A clamping hole is formed in the second frame, the clamping pin is clamped with the clamping hole, and the L-shaped plane angle plate is locked on the first frame; after the technical scheme is adopted, all that is needed is to clamp the clamping feet with the corresponding clamping holes, and then the first corner connector and the second corner connector are respectively locked with the rectangular frame body through screws, so that the first corner connector and the second corner connector are relatively convenient to mount.

The utility model relates to a conveying device for steel wire technical field especially a conveying device for steel wire, including device body, device body is provided with connecting mechanism, connecting mechanism contains the connecting assembly of setting in device body top, the inside of connecting assembly is provided with conveying assembly, the middle segment of connecting assembly is provided with cleaning assembly. The guide roller one of fixed frame one inner wall and the guide roller two of fixed frame two inside, through the special profile design, can be closely combined with the irregular shape of special-shaped steel wire, ensure that the stress of steel wire cross section each part is even in the conveying process, effectively avoid the deviation, the overturn and the jamming phenomenon, the rotary guide roller of the inner wall of side frame both sides, its surface carries out the special treatment according to the special-shaped steel wire shape, can provide enough and even friction, make the special-shaped steel wire keep stable when moving, greatly improve the conveying efficiency, reduce the equipment failure risk, guarantee the accurate butt joint of subsequent machining procedure.

The grand piano linkage device convenient to adjust comprises a base, a staple bolt seat, a compound vibration rod, an ejector rod, a compound vibration torsion spring and an installation seat, the base comprises a base transverse rod and a base vertical rod, the middle section of the base vertical rod protrudes to form a base positioning part, the first end of the compound vibration rod is rotationally connected with the upper end of the base vertical rod through a pin shaft, and the second end of the compound vibration rod is rotationally connected with the upper end of the base vertical rod through a pin shaft. A torsion spring adjusting screw hole is formed in the position, close to the first end of the compound vibration rod, of the compound vibration rod, the torsion spring adjusting screw is installed in the torsion spring adjusting screw hole, the compound vibration rod adjusting screw penetrates through a compound vibration rod adjusting through hole in the compound vibration rod and then is connected with a corresponding screw hole in the base positioning part, and two torsion arms of the compound vibration torsion spring comprise the long torsion arm and the short torsion arm. The short torsion arm is arranged in a positioning groove in the compound vibration rod, and the suspended end of the short torsion arm makes contact with the end of the torsion spring adjusting screw. The size of the linkage device is reduced, normal work of other parts is facilitated, the swing resistance of the compound vibration rod and the resistance of pressing the keys are reduced, and the torsion of the compound vibration torsion spring can be adjusted.

1. Name of the product in this design: Mid-section cover of motorcycle skid plate (YX150T-CZA). 2. Purpose of this design: As a motorcycle part. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: a top view.

This application provides a finger structure, a dexterous hand, and a robot, relating to the field of robotics. The finger structure, applied to a dexterous hand, includes a middle segment, a root segment and a fingertip segment rotatably connected to both ends of the middle segment, and the root segment is also rotatably connected to the palm. The finger structure further includes: a first buffer layer disposed between the fingertip segment and the middle segment; a second buffer layer disposed between the root segment and the middle segment; and a third buffer layer disposed between the root segment and the palm.

The utility model discloses a mould guide pillar positioning structure with high positioning accuracy, which relates to the technical field of mould structures and comprises a guide sleeve structure and a guide pillar structure, the guide pillar structure is arranged at one end in the guide sleeve structure, and a buffer structure is mounted at the bottom end in the guide sleeve structure. And a fixing bolt is connected to the joint of the buffer structure and the guide sleeve structure. According to the mold guide pillar positioning structure with the high positioning precision, the guide balls are installed on the inner surface of the positioning cavity and matched with the positioning grooves formed in the surface of the guide pillar body, so that when the guide sleeve structure and the guide pillar structure are in mutual butt joint, the good high-precision butt joint positioning effect is achieved; the guide sleeve structure is matched with the positioning wedge block on the surface of the middle section of the guide column body, the structure limiting effect can be achieved while structure butt joint positioning is achieved, the buffering structure plays a role in buffering between the guide sleeve structure and the guide column structure when the guide sleeve structure and the guide column structure are in butt joint, and structural damage caused by excessive butt joint is avoided.

This invention relates to a medical suture and a method for forming a loop at its tail. The suture includes a main body segment, a middle segment, and a tail segment connected sequentially along its length. The processing method includes the following steps: S1, fixing the middle segment; S2, driving the middle segment and the tail segment to rotate together around a rotation center line, during which the main body segment is driven to coil around the rotation center line, causing the main body segment and the middle segment to intersect each other; S3, driving the tail segment to bend towards the middle segment, so that the tail segment and the middle segment partially adhere to each other and form a loop between the tail segment and the middle segment, during the bending process, the main body segment is wrapped between the tail segment and the middle segment, so that the middle segment passes through the loop segment while the loop segment is formed; S4, fixing the part where the tail segment and the middle segment adhere to each other. This processing method is simpler to operate and produces a higher quality finished product.

The utility model relates to a cold heading device of an automobile hub adapter sleeve. The cold heading device comprises a cutting mechanism, an ejection mechanism, a conveying mechanism and six dies. The six dies comprise a first upsetting die used for conducting primary shaping on an initial blank and conducting rounding on the lower end, a second upsetting die used for conducting shaping and finishing on the upper end of the overturned first blank through rounding, and a third upsetting die used for conducting extruding and stretching on the upper end of the overturned second blank to form a small-diameter rod part. The four-upsetting die is used for pre-upsetting the lower end of the third blank overturned to the in-situ state to form an upper cylinder and a lower outer hexagonal cylinder; the five-upsetting die is used for upsetting the cylinder of the middle section of the fourth blank to form a large-diameter disc and forming a concave hole in the upper end of the small-diameter rod part of the upper section of the fourth blank; and the six-upsetting die is used for deepening the concave hole of the small-diameter rod part of the upper section of the fifth blank to form a hexagonal inner hole and extruding and stretching the whole small-diameter rod part. By adopting the technical scheme, the production efficiency is improved, materials are saved, and the cost is reduced.

The application relates to an energy-saving guide-type heat-dissipation fan shell in the technical field of fans, which comprises a frame, the frame is hollowed out to form a fan accommodating cavity, a plurality of ribs are arranged in the fan accommodating cavity, and the ribs are integrally connected with the frame; any rib is sequentially formed with an upper section, a middle section and a lower section along the axial direction, the upper section is integrally connected with the shell, the diameter of the upper section is larger than that of the lower section, the diameter of the lower section is larger than that of the middle section, the axial dimension of the upper section is larger than that of the middle section, the axial dimension of the middle section is larger than that of the lower section, and the upper section, the middle section and the lower section are smoothly connected; a plurality of air guide rings are arranged on any rib, and any air guide ring is an annular protrusion arranged on the surface of the rib.

The invention discloses a defense method and device for a context injection attack of a large language model, and relates to the technical field of artificial intelligence network security protection. The method comprises the following steps of: performing non-uniform sampling on an input context, and extracting a head system instruction area, a tail user query area and a plurality of representative text fragments in the middle; by calculating a text compression ratio feature value and an N-gram repetition rate feature value of the middle fragment, capturing structural anomaly in a non-semantic understanding mode; calculating a semantic similarity characteristic value of the tail query and the middle segment, and carrying out intention corresponding detection; a total risk score is calculated, and hierarchical non-intrusive intervention from adding a security instruction at the end of the context to applying a dynamic Logit bias in a model decoding phase is performed according to different risk levels. According to the method, the safety detection and defense of the millisecond-level delay of the ultra-long context are realized, the internal weight of the model does not need to be modified, the universality is high, and the false alarm rate is low.

This invention discloses a self-floating bridge pier anti-icing impact device and its manufacturing method. The device includes a casing body, which is composed of ice-breaking and flow-guiding segments, a middle segment, and a tail segment arranged longitudinally. The ice-breaking and flow-guiding segments are connected to the middle segment by an elastic connecting element with a preset critical trigger threshold. When the impact force exceeds the threshold, the elastic connecting element compresses and absorbs energy, and drives the ice-breaking and flow-guiding segments to automatically reset after the impact force is removed. The casing body is filled with energy-absorbing material. The manufacturing method is used to manufacture this self-floating bridge pier anti-icing impact device. This invention achieves sequential active protection with a "rigid first, flexible later" approach through the elastic connecting reset element, balancing efficient ice breaking and strong impact buffering. It also has automatic reset and adaptive water level change capabilities, significantly improving the ice impact resistance safety and life-cycle economy of bridges in cold regions.

The invention discloses a long filter bag combined type keel for a bag-type dust collector. The long filter bag combined type keel comprises segmented keel modules, self-locking type connecting mechanisms and quick-mounting fixing clamping seats, each segmented keel module comprises an upper-segment keel, at least one middle-segment keel and a lower-segment keel; the self-locking type connecting mechanism is arranged at the joint of every two adjacent segmented keel modules. Comprising an outer conical surface and an inner conical surface which are matched with each other, the outer conical surface is located at the rear end of the previous segment keel module, the inner conical surface is located at the front end of the next segment keel module, at least two spring pins are arranged on the outer surface of the outer conical surface, and L-shaped clamping grooves matched with the spring pins are formed in the inner surface of the inner conical surface. The device is convenient to assemble and disassemble, anti-vibration and anti-loosening, and strengthens the middle section support.

The utility model relates to a kind of clamping fixture for shell, including base, the top left side of base is equipped with first mounting hole, the top right side of base is equipped with second mounting hole, first round stick, first round stick bottom end is fixedly installed in first mounting hole, the middle segment of first round stick is equipped with first spring;Second round stick, the bottom end of multiple second round stick is fixedly installed in base top;First mounting block, first mounting block top is equipped with first avoiding hole, the top of first round stick passes through first avoiding hole;And fixed module, fixed module is fixedly installed in second mounting hole, first round stick is positioned installation with first mounting hole cooperation, first spring can form elastic support to first mounting block, multiple second round stick can carry out multi-point location to shell bottom, fixed module can be cooperated with first mounting block and the component, realize the reliable fixing to shell, satisfy shell clamping requirement, and can be limited by fixed module and first spring, to different shell.

The patent relates to a tubular steel plate connector, in particular to a middle drum type tubular steel plate connector and a combined structure thereof. The tubular steel plate connector comprises a cylindrical body (1), the cylindrical body (1) comprises an upper column body section (12), a middle column body section (11) and a lower column body section (13), the cross-sectional area of the middle column body section (11) is greater than that of the upper column body section (12), and the cross-sectional area of the middle column body section (11) is greater than that of the lower column body section (13). The patent adopts a middle drum type structure, so that the middle part of the cylindrical body is outwardly drum-shaped, and the cylindrical body is not easy to be folded inward when being pressed, and the structure is more stable and reliable when being connected with a top plate and a bottom plate.

This invention provides a spoke-based wind resistance reduction structure, comprising a head, a neck, a middle section, and a threaded connection. The neck is integrally connected to the bottom surface of the head, and the cross-section of the neck is smaller than that of the head. The middle section is integrally connected to the bottom surface of the neck, and includes a first plane and a second plane, which flatten the middle section, and its cross-section is smaller than that of the neck. The threaded connection is integrally connected to the bottom surface of the middle section, and its cross-section is smaller than that of the threaded connection. This allows the spoke-based wind resistance reduction structure to be installed between the hub and the rim. The flat, streamlined middle section, combined with a short spoke cap, ensures that its exposed length is lower than or equal to the rim surface. Furthermore, the first and second planes of the middle section enable the flat, streamlined middle section to achieve the effect of minimizing wind resistance.

The present application relates to a kind of general automation assembly line, including the front section assembly line, middle section assembly line and rear section assembly line in the conveying direction of product are sequentially arranged;The front section assembly line, middle section assembly line and rear section assembly line are equipped with several material transfer devices, and the material transfer device includes multi-axis robot, gripper for taking material arranged in the output end of the multi-axis robot, and gripper library;Wherein, the gripper for taking material of first product series is stored in the gripper library of the front section assembly line, the gripper for taking material of full product series is stored in the gripper library of the middle section assembly line, the gripper for taking material of second product series is stored in the gripper library of the rear section assembly line.The present application is configured by different series of gripper for taking material library in the front section assembly line, middle section assembly line and rear section assembly line respectively, so that the assembly line can quickly adapt to the assembly demand of different product series, and different models of products can be produced according to the collocation combination between different section assembly line.

The utility model relates to the technical field of medicine packaging tools, in particular to a medicine packaging knocking exhaust rubber hammer which comprises a rubber hammer body, and the rubber hammer body comprises a hammer body and a hammer handle fixedly connected to the hammer body. The hammer body comprises a middle hammer body section, the upper end and the lower end of the middle hammer body section are connected with a hammer body upper section and a hammer body lower section respectively, and one side of the middle hammer body section is further connected with the hammer handle; and the hammer body middle section is made of a metal material. The hammer has the advantages that the structural design is simpler and more reasonable, the hammer has the advantage of being small in structural size and reliable in knocking force, the hammer handle and the hammer body can be better prevented from being broken and damaged, and the functions are more diversified.

The utility model relates to an automatic assembly line which comprises a front-section assembly line, a middle-section assembly line and a rear-section assembly line which are sequentially arranged in the conveying direction of products. The front section assembly line, the middle section assembly line and the rear section assembly line are each provided with a plurality of material transferring devices, and each material transferring device comprises a multi-axis robot, a material taking clamp arranged at the output end of the multi-axis robot and a clamp library; material taking clamps of a first product series are stored in the clamp library of the front-section assembly line, material taking clamps of a whole product series are stored in the clamp library of the middle-section assembly line, and material taking clamps of a second product series are stored in the clamp library of the rear-section assembly line. According to the assembly line, the front-section assembly line, the middle-section assembly line and the rear-section assembly line are respectively provided with the material taking clamp libraries of different series, so that the assembly line can quickly meet the assembly requirements of different product series, and products of different models can be produced according to the matching and combination of different sections of assembly lines.

The invention discloses a construction method of a large-span steel structure arch bridge. The construction method comprises the following steps in sequence: S1, foundation construction; s2, mounting a near-shore steel structure: sequentially mounting a near-shore cross beam section, an arched beam combined section, a near-shore main beam section and a side section arch rib section in a sliding and hoisting combined manner; s3, building a midspan system: building a lifting bracket and a middle bearing platform, placing two ends of at least one middle main longitudinal beam on a sliding platform, mounting at least one middle main cross beam on the middle main longitudinal beam to form the middle bearing platform, and erecting an arch rib support frame on the middle bearing platform; s4, middle-section arch rib folding: middle-section arch rib sections are hoisted on arch rib supporting frames and assembled into a middle-section arch rib structure, the middle-section arch rib structure is lifted to a designed position through lifting equipment, and folding construction is carried out; and S5, construction of an accessory structure. The problems of high safety risk, long construction period, high cost and poor installation precision in steel structure arch bridge construction are solved.

The application provides a crotch structure and a robot. The crotch structure comprises a support frame, two middle segment connectors and two limb connectors. The two middle segment connectors are fixedly connected to the first fixed side and the second fixed side of the support frame respectively. The two limb connectors are fixedly installed on the two middle segment connectors one by one. Two first power assemblies are fixed to the two middle segment connectors respectively. Part of the first power assemblies are fixed to the first installation cavity of the support frame. Two second power assemblies are arranged in the third installation cavity of the two limb connectors one by one. The air supply module comprises a first fan. The first fan is connected to the second opening. The impeller area of the first fan is opposite to the second opening. The crotch structure solves the technical problem that the robot in the prior art is prone to cooling liquid leakage when water cooling is used for heat dissipation.

The present application relates to the technical field of engineering construction structure, and particularly relates to a scissors support welding auxiliary method, which solves the problem of insufficient consistency of the scissors support in the existing jacket, the jacket is divided into a lower segment body, a middle segment body and an upper segment body from bottom to top in the height direction, and the corresponding lower segment surface, middle segment surface and upper segment surface of the jacket are defined, the lower segment surface, the middle segment surface and the upper segment surface are all isosceles trapezoidal structures, and the areas decrease successively, and the construction comprises the following steps: S1, welding the lower segment body; S2, welding the middle segment body: within the range of the middle segment surface, the two ends of the welded pipe are cut and formed, and each pipe is placed in an "X" shape, and the centers of the pipes are cross-linked; each pipe is positioned through a bracket assembly; the bracket assembly comprises two rectangular brackets, at least two connecting beams connecting the two rectangular brackets, and a plurality of support plate pieces arranged on the rectangular bracket and used for supporting each pipe; and S3, welding the upper segment body.

The utility model discloses a module integrated cover structure which comprises an upper cover plate and a lower cover plate (4) which are buckled with each other, the upper cover plate is divided into a positive electrode cover (1), a negative electrode cover (2) and a middle section cover (3), the positive electrode cover (1) and the negative electrode cover (2) are respectively arranged at two ends of the middle section cover (3), and the positive electrode cover (1), the negative electrode cover (2) and the middle section cover (3) are buckled on the lower cover plate (4). The two ends of the middle section cover (3) are bent, and the positive electrode cover (1) and the negative electrode cover (2) are attached to the two ends of the middle section cover (3); through the spliced integrated cover, the upper surface is flat and attractive, the integrated cover can be assembled in advance, the automatic production degree of module manufacturing is improved, the production efficiency is improved, and the strength of a connecting seam can be improved and the risk of breakage can be reduced as the connecting seam between the middle-section cover (3) and the positive electrode cover (1) and the negative electrode cover (2) at the two ends is not a straight line.

The application discloses a reduction device for long bone comminuted fracture operation, and relates to the technical field of medical devices. The device comprises a middle segment positioning mechanism and two groups of two-side segment positioning mechanisms symmetrically arranged. The middle segment positioning mechanism comprises a positioning tube provided with a wedge-shaped convex rib; the two-side segment positioning mechanism comprises a frame body, an inner movable block capable of adjusting the position in the axial direction and an outer flexible sheet, and realizes fine adjustment of the position through a lead screw and a bevel gear transmission group. The proximal ends of the two groups of frame bodies are designed in a step-shaped overlapping mode and are jointly sleeved outside the positioning tube. Through a one-way meshing structure formed by a rack in the mounting block and the wedge-shaped convex rib, and by using matched guide inclined surfaces and limiting stop surfaces, the two groups of frame bodies are realized to slide inwardly and be automatically locked. The application realizes the logic of central anchoring and two-side butt, ensures the tightness and in-operation stability of the joint between the side bone block and the middle bone block, supports vertical sliding and separation, and greatly facilitates post-operation removal.

The utility model relates to the field of rock breaking devices, in particular to a gas conversion air energy expansion rock breaking device which comprises a first fracturing pipe. An extension fracturing pipe is arranged below the first fracturing pipe, the extension connecting piece is connected between the first fracturing pipe and the extension fracturing pipe, the extension connecting piece is formed by combining a middle section structure and threaded connecting pipes fixedly connected to the upper side and the lower side of the middle section structure, and a first wire connecting hole penetrating through the middle section structure is formed in the middle section structure. The first fracturing pipe is in threaded connection with the outer side of the threaded connecting pipe at the upper end; according to the utility model, the extension fracturing pipe with the same structure as the existing first fracturing pipe is additionally arranged below the existing first fracturing pipe, and the first fracturing pipe is in threaded connection with the extension fracturing pipe through the extension connecting column, so that the length of the first fracturing pipe is increased, and the length of the first fracturing pipe can be changed according to the drilling depth; the rock breaking device is suitable for rock breaking work of more different depths, and the universality of the whole rock breaking device is improved.

The utility model discloses a transmission belt for bread processing relates to bread processing technical field, including transmission belt subassembly and support component, the left and right sides horizontal erection of transmission belt subassembly has adjusting assembly, the top of adjusting assembly is horizontally connected to support component, and the middle segment arrangement of support component is connected with the installation of limiting component. The transmission belt for bread processing, through the middle part arrangement of support component installs limiting component, utilizes the structure setting between both, can according to need with the structure adjustment of certain number on limiting component, to adapt to the need of trial, can also adjust the spacing between limiting component each other, provides structure limit for material, and also avoids the influence of the conveying of material, in addition, the structure setting of adjusting assembly cooperation support component can be to the proper lifting adjustment of limiting component, and horizontal movement, to improve structural flexibility.

The invention discloses a longitudinal integrated dynamic bathing device suitable for a compact space, and relates to the technical field of nursing instruments, the longitudinal integrated dynamic bathing device comprises an upper section module, a middle section module and a lower section module, the upper section module, the middle section module and the lower section module are connected through a vertical segmented layout and are fixed on a wall through an integrated load-bearing back plate, and the upper section module, the middle section module and the lower section module are fixed on the wall through the integrated load-bearing back plate. The upper-section module comprises a lighting assembly and a heating assembly, the middle-section module comprises a bathing assembly and a storage assembly, the lower-section module comprises a sitting posture supporting assembly, the modules are connected in a sliding mode through embedded structures, and the vertical positions of the modules can be adjusted. According to the invention, the problems of poor adaptability, space limitation, loose layout, inconvenience in assembly and the like of an existing transformation mode suitable for aging to old residences in cities and towns are solved, and meanwhile, the defect that the dynamic requirements of old people on the size and function combination of bath facilities along with physiological changes cannot be met is overcome.

The utility model discloses a ship wake flow infrared and wake characteristic test model, which belongs to the technical field of ship wake flow test, and comprises a head section model block, a middle section model block and a tail section model block, a simulation module is arranged in the middle section model block, the middle section model block is formed by sequentially connecting and splicing a plurality of shells, a truss is arranged in each shell, and the tail section model block is arranged in the middle section model block. The adjacent trusses are movably connected through first connecting pieces, the adjacent shells are movably connected through second connecting pieces, mounting grooves are formed in the inner walls of the shells, mounting protrusions are arranged on the outer walls of the trusses, the mounting protrusions are matched with the mounting grooves, the mounting protrusions are of spiral structures wound on the outer walls of the trusses, and the mounting grooves are spiral grooves. And the mounting bulge is spirally mounted in the mounting groove. According to the utility model, the whole middle-section model block is arranged to be mounted and dismounted in a segmented manner, so that when the simulation module distributed in the middle-section model block locally breaks down, a specified area can be conveniently overhauled and maintained.

The application discloses an arch frame transfer platform and method, and relates to the technical field of tunnel engineering equipment, and the system comprises a cantilever crane, a lifting mechanism device, an arch frame transfer rack assembly, a middle vertical arch arm frame, a side vertical arch arm frame, a side arch frame transfer arm assembly and a rack. The whole arch frame is segmented and transferred. The arch frame is segmented into three sections. For the middle section arch frame, the segmented arch in the middle is transferred to the rack from the ground, placed on the arch frame transfer rack, and grabbed by the middle vertical arch arm frame to the working face. For the segmented arches on the two sides, the side arch frame transfer arm assembly is designed by utilizing the side space, the segmented arches on the two sides are transferred from the side of the rack, and are grabbed by the side vertical arch arm frame to the working face. The technical route utilizes the upper and side spaces of the rack to store the three segmented arches, does not affect the slagging channel, can be parallelly operated with other processes, and saves operation time. If the arch frame is installed, the three segmented arches are spliced and installed.