67results about How to "Reduce structural design" patented technology

The present invention is: a package main body section having a hollow section; and an electronic device provided in the hollow section in the package main body section, in the package main body section, there being formed a through hole, through which the hollow section communicates with outside of the package main body section, and in the through hole, there being provided a sealing section in which a vicinity of the through hole is partly heated and a constituent material of the package main body section is melted to thereby block the through hole.

The invention relates to a turbine disk probability failure physical life predicting method based on Bayes information update, which comprises the following steps that 1, failure physical information of a turbine disk is determined in a reliability analyzing method based on physics of failure according to the structural characteristics of the aircraft engine turbine disk; 2, the failure physical information of the aircraft engine turbine disk obtained in step 1 and the existing failure information obtained by maintenance data statistics are analyzed in an FTA (failure tree analysis) / FMECA (failure mode, effects & criticality analysis) method to obtain the main failure mode and the failure position of the turbine disk, and uncertain factors and inaccurate data of the turbine disk facing whole life cycle are collected and cleared up; and 3, a failure physical life predicting model of the aircraft engine turbine disk is established according to the main failure mode and the failure position of the turbine disk obtained in step 2. The method disclosed by the invention has the beneficial effects that the design cycle of the aircraft engine turbine disk can be obviously shortened, the development cost is reduced, and the life reliability of the aircraft engine turbine disk can be obviously improved.

The invention discloses a design and manufacturing method of a porous grid structure material and aims to solve the problems of blindness and uncertainty in traditional manufacturing of a porous material and apply an effective design concept for the porous material to practical manufacturing. The design and manufacturing method comprises the following steps: obtaining a data image based on topological optimization simulation; performing three-dimensional rebuilding on the data image on Solid Works; importing to magics software as a unit grid structure; filling into various three-dimensional models of specific parts which need to adopt the grid structure at any size ratio; afterwards manufacturing the parts. According to the design and manufacturing method, firstly, the three-dimensional model of each part is imported to a computer on a worktable; the printing angle and the printing position are set according to the three-dimensional graph structure; a powder layer is sintered into a corresponding two-dimensional shape on the layer; powder with the same thickness is repeatedly laid on the worktable on which one layer of graph is sintered; laser scanning is still performed according to the scanning route of the layer until the overall three-dimensional graph is completed. The design and manufacturing method disclosed by the invention has the advantages of reducing the elasticity modulus of the part and realizing good mechanical properties.

The invention discloses an electronic expansion valve. According to the electronic expansion valve, a piston part (4) and a valve needle part (3) are located on the same side of a valve element seat (2) so that a bypass through hole (212) can be blocked by the piston part (4) when a refrigerant flows in the forward direction, the refrigerant flows to one end of a vertical connecting pipe (52) through a valve element valve port (211), and the valve needle part (3) moves in the axial direction to adjust the open degree of the valve element valve port (211); when the refrigerant flows in the backward direction, the piston part (4) moves upwards in the axial direction to open the bypass through hole (212), and the refrigerant flows to one end of a transverse connecting pipe (51) through the bypass through hole (212). According to the electronic expansion valve, on one hand, the valve element valve port can be sealed easily by the valve needle part under the high-pressure condition when the refrigerant flows in the forward direction, and the valve needle part is prevented from being ejected open by the high-pressure refrigerant; on the other hand, the axial size and radial size of a valve seat can be reduced, and flow resistance when the refrigerant flows in the backward direction is reduced.

The invention relates to a CFG pile and tubular pile embankment reinforcing system and a construction method thereof, which is used in the whole field for building railway, highway, water conservancy, city planning, houses and the like. The system comprises a CFG pile or a tubular pile, a prestress raft plate, a supporting and retaining structure, an unballasted track plate or a ballasted track plate, a pile foundation construction platform and a roadbed; the CFG pile or the tubular pile comprises a bottom tubular pile of the supporting and retaining structure and a middle tubular pile or a middle CFG pile of embankment; the bottom tubular pile of the supporting and retaining structure is arranged on the lower part of the bottom of the supporting and retaining structure or two sides of the embankment; the upper part of the bottom tubular pile of the supporting and retaining structure is cast with the supporting and retaining structure; an electrochemical supporting set cup mouth and a prestress anchor rope pore canal are reserved in the supporting and retaining structure; soil is filled and compacted between the supporting and retaining structure to construct the pile foundation construction platform; the pile foundation construction platform is provided with the middle tubular pile or the middle CFG pile; the upper part of the middle tubular pile or the middle CFG pile is cast with the prestress raft plate; the prestress anchor rope pore canal is reserved in prestress raft plate; and a prestress anchor rope is arranged in the prestress anchor rope pore canal of the supporting and retaining structure and the prestress raft plate.

The invention discloses a curtain wall natural ventilator comprising an upper frame material, a lower frame material, an air duct upper accessory, an air duct lower accessory, an inner frame material, a base material and a handle. The upper frame material is connected with a heat insulating rubber strip of the inner frame material, the lower frame material is connected with a heat insulating rubber strip of the base material, the upper frame material is positioned above the base material so as to form a basic ventilating temperature-preserving cavity body, the air duct upper accessory and the air duct lower accessory are arranged in the cavity body so as to form an S-shaped air duct, the inner side of the inner frame material is provided with a top material, a fan material, a grating and a grating frame material, the top material is embedded at the upper edge of the inner frame material, the fan material is rotatably connected with the inner frame material through hinge mechanisms at two sides, the grating and a grating frame material are fixed outside the fan material and cover the whole inner frame material, a stepless speed adjusting gear is arranged between the fan material and the inner frame material, the handle is rotatably arranged on the fan material, and a locking mechanism is arranged between the handle and the inner frame material. The invention has the advantages of energy conservation, noise reduction, heat insulation, good safety, and the like, and can realize continuous ventilation and be integrated with a curtain wall to improve the whole beautifulness.

The invention discloses a full-load-bearing passenger car frame weight lightening method based on high-strength steel. By the use of 700MPa high-strength steel products, combining a reasonable wall thickness replacement formula with a finite element simulation method, the yielding strength of the structure is effectively improved, frame mass reduction is achieved by thinning the wall thickness ofsquare pipes, the energy consumption of a whole vehicle is reduced, and the driving range of the whole vehicle is increased. Only the wall thickness of the square steel is changed, the size of the outer cross section of the square steel is not changed, the original structural design change is small, the method almost has no effect, the universality of steel structure is better, and the method is beneficial to mass production. Compared with aluminum alloy, the high-strength steel has better price and better processability, and the method is beneficial to reduce the cost of an adjusting production process. By means of simulation calculation of the stiffness sensitivity based on the wall thickness of the square steel, the weight is lightened in a targeted manner on the premise that the rigidity performance of the frame is ensured.

The invention provides a forming method of an integrally formed airfoil structure and belongs to the technical field of composite forming. According to the forming method of the integrally formed airfoil structure, the airfoil structure is formed by the combination of a sandwich (for example, a foaming adhesive and foaming aluminum), multiple layers of carbon fiber prepregs and short fiber composites. By adopting the sandwich structure, the quality of the whole structure can be greatly reduced. By adjusting the thickness and the position (passing a load center and an airfoil joint center) of carbon fibers between the multiple layers of carbon fiber prepregs which are wrapped outside the sandwich and the sandwich, the force bearing and transferring performance is improved. As the outline surface of the sandwich is parallel with the outline surface of an airfoil, the structural stability is ensured. According to the integrally formed airfoil structure, the structural form is free of the independent forming design of a main beam and free of the structural design of connecting part metal components, structure forming complexity is reduced, structure weight is reduced, and the whole load carrying and aeropneumatic performance is great.

A method, system and computer program product for reducing XOR / XNOR subexpressions in structural design representations are disclosed. The method includes receiving an initial design, in which the initial design represents an electronic circuit containing an XOR gate. A first simplification mode for the initial design is selected from a set of applicable simplification modes, wherein the first simplification mode is an XOR / XNOR simplification mode, and a simplification of the initial design is performed according to the first simplification mode to generate a reduced design containing a reduced number of XOR gates. Whether a size of the reduced design is less than a size of the initial design is determined, and, in response to determining that the size of the reduced design is less than a the size of the initial design, the initial design is replaced with the reduced design.

The invention relates to a furniture hinge (4), comprising:a first fitting part (5) for fastening to a furniture body (2),a second fitting part (9) for fastening to a movably mounted furniture part (3), wherein the second fitting part (9) is connected to the first fitting part (5) in an articulated manner,at least one helical spring (12) with an operating direction (X), wherein the furniture hinge(4) can be moved to a completely closed position and / or to a completely open position by the helical spring (12) starting from a prespecified angular position,a damping apparatus (11) for damping a hinge movement, wherein the damping apparatus (11) has at least one fluid chamber (25) in which a piston (22) with a piston rod (20) for executing a damping stroke which runs in a direction (Y) is accommodated, wherein the operating direction (X) of the helical spring (12) and the direction (Y) of the damping stroke run at a lateral parallel distance or obliquely in relation to one another, whereinthe helical spring (12) and the damping apparatus (11) are arranged in or on a common support (10) which is integrated in the furniture hinge (4).

The invention discloses a heat neutron spectrum hybrid-positioning multi-flow-region fuel assembly. The heat neutron spectrum hybrid-positioning multi-flow-region fuel assembly comprises a heat-insulating encircling cylinder, a highly heat-insulating assembly case and an assembly grillwork, wherein the highly heat-insulating assembly case and the assembly grillwork radially sleeve the heat-insulating encircling cylinder in sequence. The interior of the heat-insulating encircling cylinder is an internal flow region, a middle flow region is arranged between the heat-insulating encircling cylinder and the highly heat-insulating assembly case, and an external flow region is arranged between the highly heat-insulating assembly case and the assembly grillwork. Coolant flows from top to bottom in the internal flow region, flows from bottom to top in the middle flow region and flows from top to bottom in an external flow region. The invention further discloses a supercritical water reactor utilizing the heat neutron spectrum hybrid-positioning multi-flow-region fuel assembly. The heat neutron spectrum hybrid-positioning multi-flow-region fuel assembly and the supercritical water reactor have the advantages that structural design is simple, physical design difficulty is low, structural material application is reduced, and fuel economy, safety and engineering feasibility are improved remarkably.

The invention discloses a paper folding structure capable of conducting self-folding based on light drive. The paper folding structure is formed by arranging and combining a plurality of rectangular units. Each rectangular unit is of a sheet structure with the front face and the back face, and each rectangular unit is in left-right symmetry with the center line as the boundary. The front face andthe back face of each rectangular unit are provided with light sensing pasters, the corresponding front light sensing pasters are fixed to the corresponding left diagonal line and the corresponding right diagonal line which are crossed, and the back light sensing pasters are fixed to the center lines and the boundary of every two adjacent rectangular units. The light sensing pasters are bent towards the side deviating from the rectangular units under irradiation, the whole structure is driven to be bent towards the back faces along the center lines and the boundary of every two adjacent rectangular units, and meanwhile, the whole structure is bent towards the front faces along the diagonal lines on the left side and the right side. According to the paper folding structure, light drive is integrally adopted, the response speed is high, a triangular plane unit not deforming and the connecting line of two adjacent plane units serve as a rotation pair, and the folding and unfolding processof the structure is accurately controlled.

The miniature great-power semiconductor air conditioner consists of thermoelectric refrigerator assembly, cold-exchanging wind channel assembly, return wind channel assembly, heat sink, heat isolating layer, fan, frame and other parts. The cold-exchanging wind channel assembly includes cold-exchanging wind channel, transition wind channel, fan hood and wind outlet; the thermoelectric refrigerator assembly has its cold surface contacting closely to heat conducting block of the cold-exchanger; and the heat sink has base board contacting closely to the hot surface of the thermoelectric refrigerator assembly. The miniature great-power semiconductor air conditioner of the present invention adopts 'cross flow and space to space' structure, is powered with accumulators or switching power supply, and may be used as the back-up for the compressor air conditioner or alone.

The invention relates to an impression-free linkage type self-material-returning cutter die comprising an upper die plate, a lower die plate and a cutter die plate. Two cushion blocks are arranged between the upper die plate and the cutter die plate and are installed at the positions, close to edges of the front side and the rear side of the cutter die plate, of the cutter die plate correspondingly. The upper die plate, the cushion blocks and the cutter die plate are connected through bolts. Through holes are formed in the cutter die plate. A material returning plate is arranged between the two cushion blocks. Spring installation holes are formed in the material returning plate. Material returning springs are installed on the spring installation holes. Guide columns are arranged on the portions, close to the left side and the right side, on the lower face of the material returning plate. Material returning columns are arranged at the middle portion positions of the lower face of the material returning plate. The through holes are formed in the cutter die plate, positioning needles are arranged on the lower face of the cutter die plate, cutter points are arranged on the lower face of the cutter die plate, and positioning holes corresponding to the positions of the positioning needles are formed in the lower die plate. In the rising process of the upper die plate, the guide columns are also separated from the upper die plate, and the material returning columns are pushed by the springs to eject out products downwards.

The invention discloses a curtain wall natural ventilation device, which includes a shell, a fan material and a insect-proof net in the device, wherein the shell is of a cuboid shape consisting of a cover plate, an inner frame material, an outer frame material, a lower frame material, an upper frame material, a left side plate and a right side plate, interior of the shell is a ventilation cavity, the upper frame material is of a groove shape with an upward opening, a ventilating opening is arranged at middle of the cover plate arranged at top, the material fan is arranged at the ventilating opening and is connected with the upper frame material through hinge mechanisms arranged at two sides of the material fan, a air channel upper chamber is formed between the material fan the upper frame material, the insect-proof net is arranged on the upper frame material below the fan material, the inner frame material and the outer frame material are arranged below the upper frame material and form a air channel lower chamber with the inclined lower frame material, and a air intake grating is arranged at the lower part of the outer frame material. The invention has advantages of the energy conservation, noise reduction, heat insulation and good safety, can continuously ventilate, integrate with the curtain wall and improve integral aesthetic feeling.

The invention relates to a sludge drying and dewatering system. The system comprises a disc drying system and a filter-pressing drying system, wherein the disc drying system comprises a casing, a stirring shaft is mounted in the casing, disc pieces are mounted on the stirring shaft in a spaced manner, a sludge inlet and a steam outlet are formed in the top of the casing, a dried sludge outlet is formed in the bottom of the casing, the stirring shaft is driven by a motor at one end, the stirring shaft adopts a hollow structure and has a hot steam inlet at one end, and a condensate delivery tube is inserted into the hot steam inlet; the filter-pressing drying system comprises a filter pressing system, a sludge inlet system connected with the filter pressing system, a vacuum pumping system, a hot water circulating system and a sludge output system, the sludge inlet system is connected with a sludge inlet end of the filter pressing system, the sludge output system is connected with a sludge outlet end of the filter pressing system, the vacuum pumping system is used for keeping the filter pressing system to be in a negative pressure state during filter pressing of sludge, and the hot water circulating system is connected with a steam outlet of the disc drying system.

The utility model discloses an isolated medical protective hood. The isolated medical protective hood comprises a main body and a transparent mask, a closed space is formed by the built-in sealing strip group and is isolated from external air; the air intake and exhaust amount is intelligently controlled by a circuit control board and an inflator pump in the control box; clean air is continuouslyprovided for the interior of the face mask, waste gas exhaled by a human body is exhausted through the negative pressure pump, the face mask can communicate with the human body through the miniature loudspeaker, the miniature microphone and the earphone, the miniature camera and the LED lamp are used for recording videos, and the videos recorded on site can be transmitted to the cloud end in timethrough the communication module on the control panel.

The invention discloses chef-level automatic intelligent cooking equipment which comprises a liquid feeding mechanism used for automatically outputting liquid seasonings, a paste feeding mechanism used for automatically outputting paste seasonings and a rotary feeding mechanism used for automatically rotating and sequentially outputting solid food materials and solid seasonings. By arranging the liquid feeding mechanism and the paste feeding mechanism, the liquid seasonings and paste seasonings are both output to a stir-frying mechanism through a tubular structure, the feeding of the seasonings can be accurately controlled, the solid food materials and the solid seasoning are sequentially fed by arranging the rotary feeding mechanism, and different feeding steps meeting various cooking requirements are met; and the chef-level automatic cooking work is achieved. Meanwhile, the liquid seasonings, the paste seasonings and the solid seasonings are separately output in different mechanisms, so that the control accuracy of seasoning output is improved, meanwhile, more different seasonings can be accurately controlled to be output in different time periods, human intervention can be reduced, and the cooking quality of dishes can also be improved.

The invention discloses an electronic element capable of realizing integration of IR remote control and infrared light reflection induction, which comprises a shell, and an infrared transmitting module, an infrared receiving module and an LED indicating lamp which are packaged in the shell, and is characterized in that the infrared transmitting module is used for outputting an infrared signal to the outside from a television, wherein the infrared receiving module is used for receiving reflected infrared signals through a reflector or receiving infrared signals sent by an external remote controller, and the LED indicator lamp is used for indicating the working state of the television or responding to receiving of the infrared signals by the infrared receiving module. According to the scheme, the infrared transmitting module, the infrared receiving module and the LED indicator lamp are integrally packaged, so that the working procedures and labor cost of structural design, manufacturingand mounting can be saved, and the attractiveness of the television mounted on the television is improved. Compared with a traditional control method, the scheme does not need a remote controller, andthe startup, shutdown and menu functions can be achieved only by collecting the duration of the infrared reflection signals.

The invention discloses a damping system for complete communication-in-motion equipment by adopting external wire ropes. The system includes an equipment fixing plate for bearing overall gravity, a plurality of dampers adopting the elasticity of the wire ropes to buffer the impact force of the communication-in-motion equipment, and a plurality of connection parts for mounting the dampers; the connection parts form a circle and uniformly mounted on the equipment fixing plate, the upper portion of each connection part is fixedly connected with a first end of a corresponding damper, the dampers and the vertical direction form a 45-degree angle when mounted, a second end of each damper is fixedly connected with the communication-in-motion equipment. According to the damping system for the complete communication-in-motion equipment by adopting the external wire ropes, the weight of the complete communication-in-motion equipment can be reduced so that the assembly can be easier; because the dampers are used, the impact which the complete communication-in-motion equipment bears is greatly reduced, requirements on structural design of the equipment can be greatly reduced, requirements on electric-part type selection are greatly reduced, and the service life of the equipment is long, so that the accuracy of the equipment is ensured during a designed service life of the equipment.

The invention discloses a five-dimensional force sensor structure based on a double-layer planar spring, the structure comprises two layers of parallel planar spring structures, each layer is formed by a central end, three groups or more elastic beam structures and a peripheral end, one ends of the beam structures are fixedly connected with the central end, and the other ends are fixedly connected with the peripheral end. Two layers of planar springs are fixedly connected through the peripheral end and are separated by a certain distance. Each doubly-layer structure comprises two central ends, one of the central ends are fixedly connected with a force input end, and the other one is a fixed end. In the double-layer planar spring, a text system is formed by five sets of optical fiber distance sensors or strain gauges and corresponding five sets of elastic beam structures, and the text system is used for measuring elastic beam structural deformation, so that three-dimensional force and two-dimensional force couple of the central end fixedly connected with the input end are measured. The sensor structure can realize the measurement of force and two-dimensional force couple in any direction through the double-layer planar spring, and the spring can be used for a robot finger, a continuous body and force sensors of service robots such as a flexible robot, a medical robot and the like.

The invention discloses a circulating gasifying and pyrolyzing incinerator system and an incinerating method. The circulating gasifying and pyrolyzing incinerator system comprises an incinerator A, an incinerator B and an incinerator C. The incinerating method comprises the following steps: loading the waste material to be incinerated in the shell of the incinerator A; igniting an igniting combustion-supporting device which is arranged at the bottom of the grate of the incinerator A to combust the waste material in a secondary combusting chamber; exchanging the heat with an heat exchanger, and providing the heat for the incinerator B through a heat exchanging pipe; gasifying the waster material to be incinerated in the incinerator B; after the water material in the incinerator A being fully combusted and decomposed, igniting an igniting combustion-supporting device for the incinerator B to combust and decompose the waste material pyrolyzed and gasified in the incinerator B; and pyrolyzing and gasifying the water material in the incinerator C by part of the heat through the heat exchanging pipe. Because the waste materials are pyrolyzed and decomposed due to the circulating combustion by the incinerator A, the incinerator B and the incinerator C, the time and the energy are saved, and the utilization rate of the fuel is improved due to the continuous running of the incinerator A, the incinerator B and the incinerator C in a sealed way. The incinerating method has great popularization value in the field of the circulating gasifying and pyrolyzing incinerator system.

The invention relates to a sludge drying and dewatering system based on disk drying. The sludge drying and dewatering system comprises a disk drying system and a press drying system. The disk drying system comprises a shell, wherein a stirring shaft is arranged in the shell; disk pieces are arranged on the stirring shaft at an interval; the top of the shell is provided with a sludge inlet and a steam outlet, and the bottom of the shell is provided with a dry sludge outlet; the stirring shaft is driven by a motor located at one end of the stirring shaft; the stirring shaft is of a hollow structure; and one end of the stirring shaft is a hot steam inlet, and a condensed water outlet pipe is inserted into the hot steam inlet. The press drying system comprises a press filtration system, and a sludge feeding system, a vacuum-pumping system, a hot water circulating system and a sludge output system all connected with the press filtration system, wherein the sludge feeding system is connected with the sludge inlet end of the press filtration system; the sludge output system is connected with the sludge outlet end of the press filtration system; the vacuum-pumping system is used for maintaining the press filtration system in a negative pressure state during press filtration of sludge; and the hot water circulating system is connected with the steam outlet of the disk drying system.

The invention provides an ultrasonic grinding device. By means of the ultrasonic grinding device, the structural design is novel, the service life of a brushless sliding ring on the ultrasonic grinding device is long, and meanwhile the vibration influence can be reduced. The ultrasonic grinding device comprises a motor seat, a motor mounted on the motor seat and a main shaft of a tubular hollow structure. The main shaft is mounted on the base through a bearing. An amplitude change rod is arranged in the main shaft, the main shaft is coaxially connected with an output shaft of the motor thougha coupling, and the main shaft can be driven by an output shaft of the motor to rotate. A transducer is arranged at the end of the amplitude change rod located in the mains haft, and two electrode connecting lines stretch out of the transducer. The main shaft is connected with the end of the main shaft driven by the coupling through the brushless sliding ring. Two electrode pieces extending out ofthe amplitude change rod are connected with an outer ultrasonic frequency power source through the brushless sliding ring.

The invention provides a double-guide vane tubular oil pump, comprising: a pump casing, an inlet bearing seat and an outlet bearing seat are fixedly arranged at the front end and the rear end respectively, and a bearing seat is arranged between the inlet bearing seat and the outlet bearing seat The rotor and the stator; the rotating shaft, which is installed in the inner cavity through the rotation of the bearings on the inlet bearing seat and the outlet bearing seat, the middle part is fixedly connected with the rotor, and the rotating part of the rotating shaft is provided with a plurality of blades, which are fixed There are multiple compression guide vanes on the upper part; the inlet end cover has an oil inlet at the front end, and the rear end is fixedly connected with the pump casing; the outlet end cover is fixedly connected with the pump casing at the front end, and an oil inlet is arranged at the rear end. Oil outlet. The invention adopts the design of the oblique flow impeller, and is provided with a double guide vane structure of compression guide vanes and diversion guide vanes, which can reduce the energy loss of the liquid flow, increase the flow rate and head, and reduce noise pollution.

The invention relates to packaging production equipment. The packaging production equipment comprises a rack, a batching apparatus, a sheet device, a molding device, a label trapping device, a detecting device, a PLC control device, a first conveying device and a second conveying device; and the PLC control device is connected with the batching apparatus, the sheet device, the molding device, the label trapping device, the detecting device, the first conveying device and the second conveying device. The detecting device comprises an ultrasonic testing module and an image detecting module, and the ultrasonic testing module is connected with the image detecting module. The packaging production equipment is reasonable in structural design, smaller in area occupied by the equipment, low in production cost, high in production efficiency, low in manual cost, low in accident rate, free of influences to health of human bodies and high in intelligent level.

The invention discloses a pharmaceutical hard sheet cutting machine for polyvinyl chloride solid tablets. The hard sheet cutting machine includes a conveying assembly, and the conveying assembly includes a bottom bracket. The bottom bracket is equipped with a power roller, and the bottom bracket is also equipped with a Slitting shaft, feeding assembly is installed on one side of the conveying assembly, the feeding assembly includes feeding bottom support, an inclined support plate is provided on the feeding bottom support, a slide plate is installed on the inclined support plate, and a dust removal assembly is installed above the cutting shaft , the dust removal assembly includes a lower dust collection box, an upper dust collection box is arranged above the lower dust collection box, a slice assembly is provided on one side of the dust removal assembly, and a winding assembly is provided on the conveying assembly and the feeding assembly. The invention has practical functions, adopts sliding and tensioning discharge, has a simple structure, saves the structural design of the slitting machine, reduces the use cost, and has good dust removal effect. There are two sets of dust collection boxes on the upper and lower sides, which effectively solves the problem of floating dust and cutting. To deal with the problem of slag, there is a split component, which can automatically control the lifting, and solves the problem of winding and overlapping of the rewinding roll during rewinding.