71results about How to "Improve regularity" patented technology

The invention provides a chip analysis method and device and a readable storage medium, and the method can divide a plurality of to-be-tested chips into a plurality of to-be-tested groups, test the to-be-tested chips in each to-be-tested group in sequence and determine a first statistical parameter, and also can test the to-be-tested chips in the to-be-tested groups after the to-be-tested chips in the to-be-tested groups are all tested. And generating a second statistical parameter based on the test result, thereby generating a corresponding optimization suggestion report and stopping the test when the first statistical parameter or the second statistical parameter meets a corresponding preset condition. The scheme provided by the invention can adapt to test requirements of chips of different numbers and types, ensures that chip analysis has better regularity and reliability through grouping test, can timely find test problems and improve the overall quality of the chips, generates a corresponding optimization suggestion report, provides a specific improvement direction, and improves the test efficiency. And an engineer is helped to quickly position a problem and formulate a solution, so that a subsequent test strategy is flexibly adjusted.

The invention relates to a three-dimensional grid model processing method, computer equipment and a storage medium. The three-dimensional grid model processing method comprises the steps of obtaining a three-dimensional grid model corresponding to a medical image; wherein the three-dimensional grid model is composed of a plurality of grids, and the outer surface of the three-dimensional grid model is defined by geometric patches of the grids; acquiring the vertex curvature of each vertex in the grid, and adjusting the side length of the geometric patch of the grid according to the vertex curvature; wherein the larger the curvature of the vertex of the grid is, the larger the probability that the side length of the grid is shortened is, and / or the smaller the curvature of the vertex of the grid is, the larger the probability that the grid is merged is; and the vertex of the grid is translated by a preset distance along the direction pointed by the vertex normal vector, so that the self-crossing phenomenon after the expansion of the three-dimensional grid model is improved.

According to the photopolymer system based on the fluorine-containing liquid crystal, the grating device and the preparation method of the grating device, the mixed liquid crystal containing the nematic liquid crystal and the fluorine-containing liquid crystal at the same time is adopted in the photopolymer system, and therefore the polarity and dielectric anisotropy of the mixed liquid crystal material are improved; the overall electro-optical performance, uniformity and stability of the photopolymer system are improved, so that a grating device prepared based on the photopolymer system has good optical characteristics of low haze while having relatively high diffraction efficiency. Specifically, fluorine-containing biphenyl liquid crystals, fluorine-containing alkyne liquid crystals and fluorine-containing difluoromethoxy liquid crystals of which the carbon atoms of flexible side chains are 2-5, and nematic liquid crystals of which the delta epsilon is not less than 10 are selected to jointly form mixed liquid crystals; and the balance and optimization between the diffraction efficiency and haze performance of the photopolymer system and the grating device prepared from the photopolymer system are realized.

The invention discloses a regional load prediction method, system, equipment and medium, and particularly relates to the technical field of power load prediction, and the technical key points are as follows: a plurality of load nodes are clustered in sequence according to weather data, population flow data and urban power consumption characteristics by using a third-order clustering analysis method to obtain a tree-type clustering cluster topological structure; a representative load node is selected from each cluster subset, average correlation coefficients between influence features in weather data of each representative load node and load data are calculated, and the influence features of the first three maximum average correlation coefficients are selected as influence input features of the representative load node; performing modal decomposition on the load data representing the load nodes by using an EMD decomposition method to obtain a plurality of connotation modal components and residual terms; and inputting the influence input feature of each representative load node and the plurality of decomposed connotation mode components into a load prediction model to obtain a load prediction result corresponding to each representative load node.

The utility model relates to water purification equipment. The water purification equipment comprises a first shell, a filtering module and a separation assembly, the filtering module is arranged in the first shell and used for conducting water treatment on water, the filtering module comprises an ultrafiltration module and a reverse osmosis module, the ultrafiltration module is used for conducting ultrafiltration treatment on the water, and the reverse osmosis module is used for conducting reverse osmosis treatment on the water; the partition assembly comprises a first partition plate and a second partition plate which are arranged in a crossed mode, the first partition plate and the second partition plate are both arranged in the first shell, and a first area, a second area and a third area can be defined by the first partition plate, the second partition plate and the inner wall of the first shell jointly. At least one of the first area, the second area and the third area and other areas are arranged in parallel along a first direction, the first area is used for accommodating an ultrafiltration module, and the second area and the third area are both used for accommodating a reverse osmosis module. The internal space of the water purification equipment is reasonably divided, so that the regularity of the internal structure of the water purification equipment is improved, and the occupied area of the water purification equipment can be reduced.

The invention provides a graphite device capable of manufacturing a regular molten glass sheet, which comprises a graphite crucible and a graphite cover plug, and the graphite crucible and the graphite cover plug are combined for use when the regular molten glass sheet is manufactured. Molten glass sheets which are different in thickness and diameter and meet the measurement requirements of different analytical instruments can be manufactured by changing the specification and size of the graphite device, and a plurality of samples can be molten at the same time by combining an induction furnace manufactured in the patent of the invention CN115978995A, so that the working efficiency is greatly improved.

The invention discloses a fullerene dumbbell photocatalyst for improving photocatalytic hydrogen production performance through electron delocalization. The fullerene dumbbell photocatalyst has an acceptor-donor-acceptor characteristic, is of a fullerene-thiophene fused ring dumbbell-shaped structure, comprises two symmetrically modified fullerene carbon cages, is bridged by a fused ring electron donor in the middle, and is similar to a dumbbell in shape. The fullerene dumbbell compound has the structural characteristic as shown in the formula I. The catalyst is simple in preparation process and high in design regularity. Importantly, the dumbbell molecular photocatalyst has a remarkable electron delocalization property, so that the photocatalytic hydrogen production performance is greatly improved. According to the invention, beneficial guidance is provided for design of an efficient photocatalyst and photocatalytic hydrogen production.

The application provides a PVDC resin composition, which comprises dichloroethylene monomers, a comonomer, a hydrophilic monomer, a polymerization emulsifier, a polymerization initiator, a residual emulsifier, and a residual initiator; the comonomer comprises at least one of an acrylate monomer and an acrylonitrile monomer; the polymerization emulsifier and the residual emulsifier each independently comprises at least one of a double-bond-containing alkyl succinate salt, a double-bond-containing polyoxyethylene ether salt, and a double-bond-containing polyoxypropylene ether salt. The PVDC resin composition of the application is used for PVDC resin preparation; the polymerization emulsifier is used in a monomer polymerization stage, can guarantee that the emulsifier has a good emulsification capacity for monomers, guarantees that emulsion polymerization is smoothly carried out, and can avoid damage to a PVDC molecular chain caused by a too long chain segment; the residual emulsifier is used in a residual removal stage, can remove VDC residues, and omits a post-processing procedure; and the hydrophilic monomer can improve the stability and solid content of the emulsion.

The invention provides an EPD detection method based on a laser reflection signal during ICP etching, and relates to the technical field of semiconductor manufacturing. The EPD detection method comprises the following steps: arranging a distributed covering mask material on an epitaxial material to form an etching monitoring area in which a covering area and an exposed area alternately exist; iCP plasma etching is carried out, and light wave signals generated by laser end point monitoring reflection and / or refraction are obtained to form a process signal curve; and determining the etching depth of the epitaxial material in the etching monitoring area according to the process signal curve. According to the method provided by the invention, a regular laser end point monitoring reflection oscillogram can be generated during dry etching of a material with a complex structure, so that the etching depth can be judged more accurately and finely.

The invention relates to a flame retardant and a preparation method and application thereof, and relates to the technical field of flame retardants, the preparation method of the flame retardant comprises the following steps: adding hypophosphite, polyethylene glycol and a silane coupling agent into water, and stirring to obtain a first mixture; performing pulsed electric field treatment on the first mixture to obtain a second mixture; and filtering the second mixture, and washing and drying the obtained solid product to obtain the flame retardant. According to the invention, a material system composed of hypophosphite, polyethylene glycol and a silane coupling agent is modified by adopting a pulsed electric field technology, so that the physical properties such as particle size distribution and particle regularity of hypophosphite are remarkably improved, and the compatibility and flame-retardant effect of hypophosphite and a high polymer material are also improved; the defects of the existing hypophosphite flame retardant are overcome.

The chain system fixed-point resampling method belongs to the technical field of rotating machinery signal processing, and aims to solve the problems that the time domain signal regularity of a single chain link is poor, the dynamics characteristics of the whole system are difficult to directly reflect, and the frequency domain feature extraction cannot be performed. The method comprises the following steps: extracting original data of discrete motion units from multi-body dynamics simulation results; at the preset data monitoring point position of the system, the nearest discrete motion unit is searched as a monitoring unit in real time by calculation; according to the data type, one of a direct method, a synthetic method and an average method is adopted to process the original data of the monitoring unit, and feature data representing the dynamics state of the fixed position are generated; and finally, the feature data are written into a file in time sequence. The time sequence data of the fixed position are collected through the fixed-point resampling method, and the problems that the data is strong in contingency, poor in regularity, and difficult to perform in-depth frequency domain and statistical analysis due to tracking a single motion unit are solved.

The utility model discloses a table which comprises a table board, a movable wire groove and a fixed wire groove, the movable wire groove and the fixed wire groove are formed below the bottom face of the table board, a first containing space with the constant shape and size is formed between a bottom plate of the fixed wire groove and the bottom face of the table board, and a second containing space with the variable size is formed between the groove bottom of the movable wire groove and the bottom face of the table board. The movable wire groove can be lifted relative to the bottom surface of the table board and is fixed at the current position after being changed, and in the lifting process of the movable wire groove, the longitudinal height of the second accommodating space is correspondingly changed to adjust the accommodating height of the second accommodating space; after the movable wire groove is adjusted in a lifting mode, the first containing space is communicated with the second containing space. After the movable wire duct can descend relative to the table board and the second accommodating space is enlarged, wire harness products with relatively high thickness can be placed in the movable wire duct, so that the regularity of all wire harnesses of a user is improved, and the user is also easy to operate when regularizing the wire harnesses; only the longitudinal height of the movable trunking can be changed, so that the influence of the overall descending height of the trunking on the attractiveness of the table is reduced.

A low-complexity 1-bit signal decoder and a design method thereof, the decoder includes a counter module, a fixed subtraction module, M decoder submodules and an output control signal generating module; the counter module inputs a reset signal and a clock signal, the M decoder submodules form a parallel operation processing unit, M-1 fixed subtraction modules are arranged one-to-one between the counter module and the decoder submodule, and the address values ​​of adjacent decoder submodules differ by L; the data inputs of the M decoder submodules are all 1-bit digital signal streams, the enable ends are all connected to the output control signal generating module, and the outputs are all N-bit digital signal streams. The present invention also provides a design method for a low-complexity 1-bit signal decoder. The present invention has extremely low complexity and power consumption, is suitable for high-speed data processing, can be implemented in the form of an integrated circuit, and is suitable for high-bandwidth signal processing.

The utility model discloses an explosion-proof type quick-plug sunflower patch board connecting mechanism, which relates to the technical field of electric actuators, and comprises an electric actuator shell, a junction box and a junction device, the electric actuator shell is used for placing an electric actuator, the junction box is positioned at the upper end part of the electric actuator shell, and the junction box is positioned at the lower end part of the electric actuator shell. The wiring device is vertically arranged and located in the junction box, the wiring device comprises a plurality of terminal pieces and a connecting piece, the plurality of terminal pieces are arranged in parallel and are fixedly connected in the connecting piece, the terminal pieces are used for connecting cables, the connecting piece is located in the junction box, and the lower end part of the connecting piece is encapsulated by epoxy resin; the junction box is provided with a plurality of pressure relief openings in the transverse direction, buffer parts are arranged in the pressure relief openings, the buffer parts block the pressure relief openings in the non-working state, and when the electric actuator expands thermally, the buffer parts move in the direction away from the junction box and make the air pressure in a shell of the electric actuator reduced. The effect of improving the working stability of the electric actuator is achieved.

The invention is suitable for the technical field of polyimide rod packaging, and provides a polyimide rod formed transferring and conveying packaging machine which comprises a placing unit, a conveying unit and a fixing unit. The placing unit comprises a guide rail, a supporting frame, a rack, a gear, a coupler, a displacement motor, a displacement plate, a swing piece and a clamping piece. The conveying unit comprises a base, a telescopic air cylinder, a telescopic plate, an electric telescopic rod, an attaching plate, a conveying plate, a second pulley, a fixing frame and a conveying piece. The fixing unit comprises a supporting table, a vertical plate, a rotating motor, a first rotating wheel, a second rotating wheel, a fixing block, a belt and a taking piece. By moving the displacement plate, the swing part, the clamping part and the special-shaped polyimide rod are driven to reach the placing position, and the operation is repeated; the special-shaped polyimide rods can be reasonably placed, so that the special-shaped polyimide rods are oppositely arranged in a staggered mode, the packaging stability of the special-shaped polyimide rods is guaranteed, and the packaging efficiency of the special-shaped polyimide rods is improved.

The invention discloses a magnetic field measurement method based on a magnetic rotation effect and image analysis. The method comprises the following steps: constructing a wedge device, and setting a magnetic field measurement device based on a magnetic rotation effect and image analysis by using the wedge device based on a magnetic field measurement method of a polarizer and an analyzer; the wedge device comprises a glass sheet and a magnetic rotation crystal which are equal in thickness; the glass sheet is connected with one end of the magnetic optical rotation crystal in parallel, and the other end of the glass sheet and the other end of the magnetic optical rotation crystal are provided with interval filaments, so that a wedge-shaped air film with an inclination angle is formed between the glass sheet and the magnetic optical rotation crystal; acquiring an image gray value of the wedge interference fringes by using a magnetic field measurement device based on a magnetic rotation effect and image analysis; and based on the image gray value of the wedge interference fringes, the magnetic field intensity is calculated by using a magnetic rotation effect principle. According to the invention, the fine change of the magnetic field in a small range can be accurately measured, the components are easy to combine and the light path is easy to build in the measurement process, and the measurement time is shortened.

The invention relates to the technical field of saggers, in particular to a sagger for solid-phase sintering of a high-nickel NCA ternary lithium battery positive electrode and a preparation method of the sagger. The preparation method comprises the following steps: S1, mixing and grinding bauxite fine powder, active Al2O3 micro powder, pyrophyllite fine powder, Si powder and boric acid to obtain mixed powder; s2, adding silica sol and stirring to obtain slurry; s3, performing spray granulation on the slurry to obtain a microsphere material; s4, performing high-temperature heat preservation on the microsphere material in a nitrogen atmosphere, cooling and sieving to obtain a sintered microsphere material; s5, magnesium aluminate spinel particles, mullite fine powder, the sintered microsphere material, talc fine powder and cerium oxide fine powder are mixed and subjected to ball milling, and a mixture is obtained; s6, adding paper pulp waste liquid, mixing, sealing and ageing to obtain an aged material; and S7, after compression molding and drying, high-temperature heat preservation is conducted, and the saggar is obtained after cooling. And the prepared sagger is good in integrity, high in yield, excellent in sintering performance, high in thermal shock resistance and high in resistance to corrosion and permeability of a high-nickel NCA ternary lithium battery positive electrode material.

The invention relates to a novel high Abbe number 1.56 acrylic lens, which is characterized in that monomers for synthesizing a lens material contain modified methyl methacrylate, an acrylate monomer with hydroxyl, a polymethacrylate monomer and high refractive index epoxy resin, the modified methyl methacrylate is obtained by polyaddition reaction of methyl methacrylate, methacrylic acid and allyl methacrylate, and the mass ratio of methyl methacrylate, methacrylic acid and allyl methacrylate is (15-20): (3-5): (5-10). The abbe number, the hardness, the visible light transmittance, the impact resistance, the thermal stability, the ultraviolet aging resistance, the curvature stability and other properties of the lens are effectively improved.

The application relates to the technical field of tunnel construction, and discloses a tunnel construction drainage device, which solves the problem that the cleaning mechanism of the existing drainage device has a complex structure, the complex matching structure is prone to faults in operation, and the cleaning of the silt is ineffective; the water flow drives the rotary drum to rotate, thereby providing power for the rotation of the filter cover; the driving mode has a circulating operation path, has no redundant components or complex interaction, has a low failure rate, is convenient for long-term stable operation in a complex underwater environment, the rotating filter cover and the non-porous part of the surface cooperate with the inclined shelf to work, the silt adsorbed on the surface of the filter cover is continuously cleaned, the filter cover keeps the water filtering efficiency, the suction assembly enables the suction cover to generate suction force to suck the cleaned silt, the silt is prevented from being active near the filter cover, and the workload of the inclined shelf for cleaning the silt is increased; the movement path of the above structure is circular, the operation process is orderly, the regularity is high, and the drainage operation is suitable for stable operation in a complex underwater environment.

The utility model relates to the field of overhead line system ground wires, and discloses an overhead line system ground wire auxiliary winding device which comprises a first main body and a second main body, auxiliary mechanisms are arranged on the outer sides of the first main body and the second main body, each auxiliary mechanism comprises an installation assembly, and each installation assembly comprises installation holes formed in the opposite sides of the first main body and the second main body. A nut is arranged on the inner wall of the first main body, a bolt is arranged on the inner wall of the second main body in a penetrating mode, and the bolt is in threaded connection with the nut. According to the overhead line system ground wire winding device, through the use of the installation assembly, when an overhead line system ground wire needs to be wound, the first main body and the second main body are installed on a ground wire rod through the nut and the bolt, meanwhile, the fixing hook is fixedly installed through the locking block, and the jackscrew is used for being fixed to the ground wire rod; the upper side and the lower side of the same ground wire rod are symmetrically provided with the first main body and the second main body, so that the ground wire of the contact network can be wound conveniently, the winding regularity is improved, and the occupied space is reduced.

The utility model discloses a controller structure for electric vehicles, including a shell, a circuit board and a communication module, wherein the communication module is electrically connected to the circuit board, and further includes an input-output module, a three-phase line connector and a Hall module. The shell is provided with a mounting notch and a limiting hole, the circuit board is arranged in the shell, one end of the three-phase line connector is provided with a plug connector, the other end of the three-phase line connector is provided with a first connecting wire, the first connecting wire penetrates from the mounting notch and is electrically connected to the circuit board, the input-output module penetrates from the mounting notch and is plugged into the circuit board; a fixing plate is provided on the shell, a second connecting wire is provided on the Hall module, the second connecting wire penetrates from the fixing plate and is inserted into the limiting hole, and the second connecting wire is electrically connected to the circuit board. The three-phase line connector improves the simplicity of wiring between the motor and the three-phase AC power supply; the fixing of the wiring harness is achieved by the mounting notch, the shell, the limiting hole and the fixing plate, and the regularity of the wiring is improved.

The invention discloses a device and a method for synthesizing trichlorosilane from a waste contact body. A waste contact body is arranged in a transparent glass tube reaction tube, and a fixed sieve plate is arranged at the middle lower part of the reaction tube. The reaction tube is fixed in a reaction resistance furnace and is filled with organic silicon waste contact bodies, reaction gas enters from the lower end of the reaction tube after being decompressed and preheated by a steel cylinder and is subjected to a synthetic reaction with the waste contact bodies, obtained reaction products and other gas enter a cooler after being filtered by quartz wool, and condensation products are collected into a liquid collection bottle; and the non-condensable acid gas enters a tail gas absorption device. The invention provides a small-scale test device and method for synthesizing trichlorosilane from organic silicon waste contact bodies, the operation is simple, and test data has important guiding significance for engineering device construction.

The utility model discloses a high-strength easy-to-disassemble sound equipment shell, which comprises a sound equipment bottom shell, silica gel cushions are fixedly mounted at four corners in the sound equipment bottom shell through glue, a sound equipment surface shell matched with the sound equipment bottom shell is arranged on the front surface of the sound equipment bottom shell, a plurality of uniformly distributed positioning columns are mounted in the sound equipment bottom shell, and positioning grooves are formed in the positioning columns. Second-level inserting columns corresponding to the positioning columns are fixedly installed on the back face of the sound box face shell, the top ends of the second-level inserting columns can be inserted into positioning grooves of the positioning columns, side position reinforcing pieces are fixedly installed on the outer walls of the two sides of the second-level inserting columns, and the positioning grooves of the positioning columns are threaded grooves. According to the sound box shell, the screw dismounting work of the surface shell can be conveniently completed, the use effect of easy dismounting and maintenance is achieved, hot melt adhesive pasting is not needed in the processing process, the production cost is low, the high cost of an adhesive film can be effectively avoided, the service life of the sound box shell is prolonged, and the service life of the sound box shell is prolonged. The spraying thickness is not uniform, and the dismounting cannot be carried out.

The invention belongs to the technical field of polymer chemical raw materials and resin synthesis, particularly relates to polyvinyl chloride (PVC) resin, more particularly relates to special polyvinyl chloride resin for gas-solid phase method chlorination, and further discloses a preparation method of the special polyvinyl chloride resin. According to the preparation method of the special polyvinyl chloride resin for gas-solid phase method chlorination, on the basis of a traditional polyvinyl chloride resin synthesis process, a polybasic polyvinyl alcohol composite dispersion system with high and low polymerization degrees and alcoholysis degrees is adopted, and an antistatic agent is added in a polymerization mode at the initial stage of polymerization; the antistatic agent can be adsorbed and grafted on the surfaces of resin particles and distributed in the particles, so that the special polyvinyl chloride resin with a special particle structure is prepared.

The application relates to the field of automatic regularizing technology of solar cell pieces, and provides an automatic regularizing device for solar cell pieces, which comprises a conveying mechanism, a regularizing mechanism and a carrying mechanism; the conveying mechanism comprises a first conveying belt, a second conveying belt and a third conveying belt; the first conveying belt is used for conveying cell pieces; the second conveying belt is arranged at the end of the first conveying belt and is used for receiving the cell pieces from the first conveying belt; the speed of the second conveying belt is greater than that of the first conveying belt; the regularizing mechanism is arranged in plurality; the plurality of regularizing mechanisms are connected to the third conveying belt and are arranged in a length direction of the third conveying belt; the regularizing mechanism comprises a receiving plate, a regularizing shaft and a rotating motor; and the receiving plate is used for receiving the cell pieces from the carrying mechanism. The application has the effect of facilitating the regularizing of the solar cell pieces.

The utility model relates to the technical field of cloth production, in particular to cloth production sample preparation equipment which comprises a base, a top plate, an upper rectangular cutting board and a lower rectangular cutting board. An electric cylinder A is mounted at the bottom of the top plate through a mounting seat, a movable U-shaped clamping plate is mounted on an output shaft of the electric cylinder A through a screw, and an upper rectangular cutting board is clamped in the movable U-shaped clamping plate; a fixed U-shaped clamping plate is arranged at the top of the base and located between the positioning columns, a lower rectangular cutting plate matched with the upper rectangular cutting plate is clamped in the fixed U-shaped clamping plate, and locking screws are installed on the two sides of the movable U-shaped clamping plate and the two sides of the fixed U-shaped clamping plate through screw holes. Samples are neat and convenient to display, one-time shearing forming is achieved, the upper rectangular cutting board and the lower rectangular cutting board of different specifications are conveniently clamped through the movable U-shaped clamping plate and the fixed U-shaped clamping plate, and therefore the size of the sheared samples can be conveniently adjusted.

The invention relates to a preparation method of a high-abbe-number modified acrylate optical material, which is characterized in that monomers for synthesizing the optical material contain modified methyl methacrylate, an acrylate monomer with hydroxyl, a polymethacrylate monomer and high-refractive-index epoxy resin, the modified methyl methacrylate is obtained by polyaddition reaction of methyl methacrylate, methacrylic acid and allyl methacrylate, and the mass ratio of methyl methacrylate, methacrylic acid and allyl methacrylate is (15-20): (3-5): (5-10). The abbe number, the hardness, the visible light transmittance, the impact resistance, the thermal stability, the ultraviolet aging resistance, the curvature stability and other properties of the optical material prepared by the method are effectively improved. The preparation method is simple in procedure, safe and controllable, no waste is discharged in the preparation process, and the green and environment-friendly industrial production requirement can be met.

The invention discloses a horizontal type self-adaptive girder belt winding unit which comprises an assembly bottom plate, a self-adaptive material pressing and winding mechanism and a split type material collecting and discharging mechanism. The self-adaptive material pressing and winding mechanism comprises a sliding assembly plate, a pressing roller is rotationally assembled above the sliding assembly plate, and a pressing cover is arranged above the pressing roller in a matched mode. And the split type winding and unwinding mechanism comprises an unwinding wheel, the unwinding wheel is rotationally assembled on one side of the pressing roller, a guide wheel is arranged above the unwinding wheel, a hot air gun nozzle is arranged above the guide wheel, and a winding wheel is rotationally assembled on the side, away from the unwinding wheel, of the assembly bottom plate. According to the horizontal type self-adaptive girder belt winding unit, when a fiber prepreg belt is wound and formed, the winding tension and the winding speed can be automatically adjusted, the fiber winding stability is guaranteed, the product quality is improved, the risk that a PE isolation film is stacked, twisted or snapped in the recycling process is reduced, and the production efficiency is improved. And the overall production efficiency and the regularity of products can be improved.

The utility model provides a photovoltaic household energy storage electrical junction box structure, which belongs to a junction box structure and comprises a plurality of groups of placing foot plates and an electrical junction box body, ground separating columns are arranged on the plurality of groups of placing foot plates, a protection box is arranged on the ground separating columns, the electrical junction box body is positioned on the protection box, and a junction box is arranged on the protection box. The electrical junction box body is provided with an electrical switch box, the junction box is provided with a DC circuit breaker, and the electrical switch box is provided with a wiring assembly. According to the device, through the arrangement of the wiring assembly, a user can perform wire connection operation more conveniently and efficiently, and the wiring efficiency of the device is improved. After the electric wire is connected, a user can enhance the stability of electric wire connection through the elastic effect of the elastic cylinder, so that the user does not need to worry about wiring looseness, and the wiring reliability of the device is improved; meanwhile, due to the arrangement of the branching arrangement plate, when a user uses the device, lines can be clearly and orderly arranged, disorder is reduced, and regularity is improved.

The utility model relates to the technical field of packaging bag production and packaging, in particular to a vacuum packaging bag packing and packing box device which comprises a conveying belt, the conveying belt is controlled by a conveying roller, a neatening roller is arranged on the conveying belt, the moving direction of the neatening roller is parallel to that of the conveying belt, and the height of the neatening roller is adjustable. When a vacuum packaging bag roll is placed on the conveying belt to be conveyed and the vacuum packaging bag roll is conveyed to the position of the normalizing roller, the normalizing roller is made to be close to the conveying belt by controlling the height of the normalizing roller, so that the vacuum packaging bag roll is limited, one end of a vacuum packaging bag is in direct contact with the normalizing roller at the moment, and the vacuum packaging bag roll is placed on the conveying belt. Under the rotation effect of the conveying belt and the inertia effect of the vacuum packaging bag rolls, the vacuum packaging bag rolls are gradually parallel to the arranging roller, and therefore the problem that in the prior art, due to the fact that the packaging bag rolls possibly have the inclined discharging problem, the packaging bag rolls are arranged irregularly is solved.