426results about How to "Guaranteed integrity" patented technology

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The invention relates to the field of welding technology and finite element analysis, and particularly discloses a welding simulation method and system based on sub-field modeling. According to the system, the welding area is divided into a plurality of sub-fields, so that the simulation precision and efficiency are improved. The system comprises four main parts: gridding, heat source setting, thermal analysis and structural analysis. And the gridding module realizes fine grid division of the complex geometry by utilizing a sub-field technology and combining isotherm information. The heat source setting module accurately defines heat input conditions in the sub-fields according to welding process requirements. The thermal analysis module simulates the change of a temperature field in the welding process and provides detailed sub-field temperature distribution data. And the structural analysis module analyzes stress and deformation caused by welding based on the thermal analysis result, and particularly focuses on stress transfer and deformation behaviors among the sub-fields. According to the whole system, the welding simulation precision is greatly improved, manual intervention is reduced, and powerful technical support is provided for optimization of a complex welding process.

The invention relates to the technical field of annealing furnaces, in particular to a swirl injection type energy-saving annealing furnace. The device comprises outer shell plates and an air duct, the outer shell plates are spliced to form a hearth, the air duct is arranged in the outer shell plates to form an air path for convective circulation, the air duct is connected with a circulating fan, and air in the air duct and an inner cavity of the hearth is driven by the circulating fan to actively convectively circulate. The air direction of air convection circulation of the air channel faces the side face and the lower portion of the workpiece needing annealing, and a heat preservation layer is attached to the inner surface of the outer shell plate. The shell plate is used for supporting a main body structure of the furnace body, the air duct is used for achieving circulation convection of air flow, the annealing efficiency and the annealing quality of the metal coiled materials are improved through circulation convection of high-temperature air flow, the heat preservation layer is used for storing internal heat, reducing energy leakage and effectively reducing loss, and the circulation fan is used for providing power for circulation convection of the air flow.

The invention relates to a double-unlocking lock cylinder which comprises a lock shell, a left lock container, a right lock container and a shifting wheel, and is mainly characterized in that a clutch transmission structure of the double-unlocking lock cylinder comprises a first clutch shaft and a second clutch shaft which are coaxially riveted together and can relatively stretch and retract, and shaft sleeves are arranged on the first clutch shaft and the second clutch shaft in a sleeving mode; the first clutch shaft and the second clutch shaft are provided with shaft discs which are of the same structure and limit the shaft sleeves to disengage, a first spring is arranged between the first clutch shaft and the shaft sleeves on the same side, a second spring is arranged between the second clutch shaft and the shaft sleeves on the same side, and a third spring is arranged between the two shaft sleeves. When a key is inserted into any end of the left lock cylinder or the right lock cylinder or two ends of the key are inserted into the left lock cylinder and the right lock cylinder at the same time, the shaft sleeves can move in a reciprocating mode relative to the shifting wheel, and therefore the left lock cylinder and the right lock cylinder can be locked and unlocked. At the moment, the dial wheel can be driven by the circumferential limiting structure to rotate so as to unlock.

The invention provides an otoscope image processing system for establishing database model analysis based on deep learning, and relates to the technical field of image processing, the otoscope image processing system comprises an acquisition layer, a processing layer, an extraction layer, a modeling layer and an analysis layer, the processing layer adopts an AI image expansion algorithm to carry out fusion splicing and interference elimination processing on acquired images, and the extraction layer adopts a mixed feature extraction method to extract color, texture and shape features of the images processed by the processing layer and introduce MPEG-7 descriptors to express the features; according to the method, otoscope images of a patient are collected, features and feature values of the images are extracted, a focus global shared image library is constructed through deep learning modeling, the focus global shared image library is compared with the otoscope images of the patient for training, and corresponding focuses are determined, so that different ear diseases can be automatically identified and diagnosed by learning and analyzing a large amount of ear image data, and the diagnosis accuracy is improved. And more accurate and timely diagnosis information is provided for doctors.

The invention relates to the technical field of conductivity detection, in particular to a connector conductive terminal electroplating detection system. Comprising an unwinding device and a winding device; the unwinding device and the winding device are respectively used for unwinding and winding a material belt with a conductive terminal; a detection device is arranged between the unwinding device and the winding device; the detection device comprises a base; an auxiliary motor is arranged at the rear position of the base; an output shaft of the auxiliary motor is fixedly connected with a detection roller forwards; the detection roller is located right above the base, and the axial direction of the detection roller is consistent with the front-back direction of the base; a plurality of detection pieces are uniformly arranged on the outer wall of the detection roller in the circumferential direction; according to the invention, the plurality of detection pieces on the outer wall are driven by the detection roller to be in contact with the conductive terminals on the material belt in the conveying process in sequence, so that the conductivity detection of the conductive terminals of the connector is completed without pause, and the electroplating detection efficiency of the conductive terminals of the connector is improved.

The invention relates to the technical field of cables, in particular to an airtight cold-resistant low-smoke flame-retardant instrument cable used in an explosive environment, which comprises a protective sleeve, a cable body mechanism is arranged in the protective sleeve, the cable body mechanism comprises inner sheaths, and a plurality of inner sheaths are uniformly mounted in the protective sleeve at equal intervals. According to the invention, heat dissipated in the use process of the cable can be utilized to preheat the main body structure of the cable, so that the cold resistance of the cable is improved while internal heat dissipation is promoted; according to the invention, the structure of the cable is improved, the connection stability among the structures of the cable can be improved, the air tightness of the cable is effectively improved, the throttling effect of the heat insulation shell and the guide ring can be fully utilized, the flame retardance of the cable is improved, the cable can be better matched with the external environment, and the application range of the cable can be effectively expanded while the working stability of the cable is improved.

The invention discloses a hanging basket system for symmetrical pouring of cantilevers of a variable-cross-section stacked box aqueduct in the technical field of stacked box aqueduct pouring. The hanging basket system comprises a stacked box girder body, an upper truss is arranged on the edge of the upper end of the stacked box girder body in the pouring direction, the upper truss is provided with a suspension arm extending downwards, and a pouring hanging bracket assembly is arranged at the lower end of the suspension arm; the pouring supporting effect of the bottom of the lower box is achieved through stable anchoring of the bottom formwork, the supporting frame which is relatively fixed and matched with the lower box is arranged in the lower box, the supporting cantilever extends in the pouring direction through the supporting frame, and the supporting cantilever is used for bearing the bracket, so that the pouring supporting structure of the whole upper box is formed; the suspension arm is simultaneously connected in series with the bottom template and the support cantilever, so that the integrity is ensured; the whole structure can guarantee the pouring process of the variable cross-section stacked box aqueduct, has good supporting strength and connecting rigidity, and can effectively achieve the pouring process from stacked boxes to short stacked boxes and then to single boxes.

The invention provides a pressure control device for the injection rate of a railroad bed grouting body, and belongs to the technical field of railroad engineering. Comprising a base, a supporting top is installed at one end of the base, a support is installed at the top of the base, a motor is installed at one end of the support, a control center is installed at one end of the support, an alarm indicator lamp is installed on the surface of the control center, and a signal receiving box is installed at the top of the support. A grouting machine is installed at one end of the signal receiving box, and a grouting pipe is installed at the output end of the grouting machine. Through arrangement of the shrinkage adjusting assembly and the plugging adjusting assembly, accurate position feeding and protection of devices in the pipeline, the conveying efficiency of the device body is improved, dust and impurities are prevented from blocking the interior of the pipeline, the slurry conveying speed and completeness are kept, when slurry conveying is finished, backflow of slurry materials is avoided, and the service life of the device body is prolonged. The internal space of the roadbed is filled with slurry, the slurry conveying construction efficiency is improved, and the construction period is shortened.

The utility model relates to the field of train head covers, and discloses a train head cover forming die which comprises a base, a hydraulic machine is fixedly connected to the middle of the top end of the base, an upper die is fixedly connected to the bottom end of an output shaft of the hydraulic machine, a sliding groove is formed in the inner wall of the top end of the base, and a rail is arranged on the inner wall of the bottom end of the sliding groove. A moving assembly is arranged on the upper surface of the rail and comprises rolling wheels, the bottom ends of the rolling wheels rotate on the upper surface of the rail, a bottom plate is fixedly connected to the top ends of the rolling wheels, a positioning rod is fixedly connected to the top end of the bottom plate, a lower mold is slidably connected to the outer wall of the top end of the positioning rod, and a first limiting plate is fixedly connected to the bottom end of the bottom plate. According to the utility model, through the cooperative use of the moving assembly and the base, when the train headstock cover is formed and manufactured, the lower die can be quickly replaced, and workers can conveniently clean the replaced lower die, so that the manufacturing efficiency of the headstock cover is improved.

The invention provides a grid type telescopic device, relates to the technical field of bridge structures, and solves the technical problems that an existing comb tooth structure cannot be completely connected with two beam plates, so that the integrity of a bridge is poor, and bumping and large noise are easily caused. The device comprises a plate-shaped integrated telescopic panel, the two sides of the telescopic panel are connected with beam plate parts on the two sides of the expansion joint respectively, a plurality of telescopic ribs are arranged on the telescopic panel and form a grid type structure, and the section of each telescopic rib is of a driving trapezoidal structure with the narrow upper portion and the wide lower portion. Two adjacent beam plates are connected through the integrated telescopic panel, the telescopic ribs which can change in shape according to the temperature are arranged on the telescopic panel, the telescopic ribs are connected in a staggered mode to form the integrated seam body, and therefore the beam plates are connected in a staggered mode. Therefore, the telescopic panel has the flexibility, not only is the flexibility guaranteed, but also the integrity of the bridge can be guaranteed, and bumping and large noise can be avoided.

The invention relates to the technical field of cleaning equipment, and discloses a control device for a scraper blade and cleaning equipment, and the control device comprises a driving structure and a reset structure; the driving structure is matched with the scraping plate and used for driving the scraping plate to move from the first cleaning position to the second cleaning position; and the reset structure is connected between the scrubber and the scraping plate and used for driving the scraping plate to reset from the second cleaning position to the first cleaning position. According to the control device for the scraping plate, the driving structure is arranged to drive the scraping plate to move, so that the scraping plate and the rolling brush are arranged in a spaced mode, a complete annular water film can be formed on the surface of the rolling brush when the rolling brush rotates, the complete annular water film can flush the rolling brush cavity, dirt adhering to the rolling brush cavity is cleaned, and the service life of the rolling brush is prolonged. And a good cleaning effect is achieved.

According to the valve used in the low-temperature environment, the electric heating wire is wound on the valve, when the temperature of the using environment of the valve is lower than the temperature of water freezing, the temperature sensor transmits a signal to the controller, the controller controls the electric heating wire to be powered on, and the temperature in the installation space rises after the electric heating wire is powered on; by means of the structure, it can be guaranteed that water in the valve cannot be frozen under the condition that the outside air temperature is low, normal use of the valve is guaranteed, it is guaranteed that the valve cannot be frozen to crack, the installation space can be filled with heat preservation filler through seasoning openings formed in the first shell and the second shell, and the service life of the valve is prolonged. And a heating layer is constructed for the valve through the joint work of the heat preservation filler in the mounting space and the electric heating wire, so that the integrity of the valve can be further ensured, and the valve can be continuously used.

The present invention relates to the field of centrifuge structure, and specifically discloses a roll frame for a high-g value three-degree-of-freedom centrifuge, comprising a frame, wherein the frame is an octagonal annular cavity surrounded by an outer skin outer ring, an inner skin inner ring and a cover plate; the frame is symmetrically provided with two roll axis mounting holes, wherein a small shaft sleeve is provided in the roll axis mounting hole, and the side wall of the frame perpendicular to the line connecting the two roll axis mounting holes is provided with two pitch axis mounting holes, wherein a large shaft sleeve is provided in the pitch axis mounting hole; and a plurality of threading tubes are provided in the cavity between the outer skin and the inner skin. The advantages of the present invention are that the roll frame's outer shape structure, box cross-sectional structure, local structure and wiring method are improved and designed to improve the roll frame's overload resistance, rigidity and load-bearing capacity, and reduce the eccentricity of the roll frame, so that it can be used in a high-g value three-degree-of-freedom centrifuge.

The utility model relates to the technical field of rock mass tests on geotechnical engineering sites, and discloses a measuring device for a center hole method site rock mass deformation test, which comprises a fixed support, a measuring rod, an independent air pressure anchoring head, a plurality of synthetic air pressure anchoring heads, an air pump, a collector, a plurality of air inlet pipes and a plurality of signal lines, the independent air pressure anchoring head and the plurality of synthetic air pressure anchoring heads are respectively connected with the air pump through a plurality of air inlet pipes, and the plurality of synthetic air pressure anchoring heads are respectively connected with the collector through a plurality of independent signal lines. According to the utility model, the measuring rod extends into the central hole of the rock mass and is fixed, the plurality of synthetic air pressure anchoring heads are sleeved on the measuring rod in a sliding manner, and the plurality of synthetic air pressure anchoring heads are respectively inflated and expanded to be fixed at different height positions in the central hole; and the plurality of synthetic air pressure anchoring heads are in one-to-one correspondence with the plurality of induction iron cores arranged on the measuring rod to form a plurality of LVDT displacement sensors, so that deformation data of rock masses with different depths can be obtained.

The utility model provides an edge insertion type reinforced connection node for a concrete filled steel tubular column, which is characterized in that an upper diaphragm plate and a lower diaphragm plate of a transverse support are respectively fixed at the positions, corresponding to the elevation positions of a beam top and a beam bottom, in a welding box type column; an upper bracket plate and a lower bracket plate are respectively arranged at the same height as the upper diaphragm plate and the lower diaphragm plate; a beam top rib and a beam bottom rib of each reinforced concrete beam respectively extend to the upper ends of the upper bracket plate and the lower bracket plate which are lapped on the outer cylindrical surface of the side where the beam top rib and the beam bottom rib are located; column longitudinal bars of the concrete-filled steel tube column encased concrete combination column penetrate through the lower bracket plate and the upper bracket plate, downward hooks are formed at the top ends of the column longitudinal bars and welded to the upper bracket plate, transverse stirrups are fixedly arranged outside the column longitudinal bars in a surrounding mode in the joint area range, and reinforcing stirrups with the diameter not smaller than that of the transverse stirrups are further arranged at the hooks. The node construction is easy to implement, the connection is stable and reliable, the structural integrity is ensured, and the anti-seismic property of the fabricated high-rise steel structure building is improved.

The invention relates to a nested plugging device which comprises a woven body, and the woven body comprises at least two plugging supports. Two adjacent sections of plugging brackets are connected through a nesting structure, and the nesting structure comprises a first connecting surface arranged on one plugging bracket and a second connecting surface arranged on the other plugging bracket; the first connecting face is a connecting protrusion, the second connecting face is provided with a connecting groove corresponding to the connecting protrusion, and the connecting protrusion and the connecting groove are connected in any mode of clamping, welding, heat sealing or integral shaping. The woven body is arranged into the multi-section plugging stent structure, and every two adjacent sections of plugging stents are connected through the corresponding nesting structure, so that the flexibility of the plugging device can be improved, the plugging device can adapt to a zigzag conveying channel and an irregular cavity, and the radial supporting force of the whole stent can be improved.

The utility model belongs to the field of iron core processing, and particularly relates to an iron core shaping jig opening mechanism which comprises a base, a positioning assembly and a turnover mechanism. A movable supporting table is arranged above the base, and two symmetrical side plates are arranged on the supporting table; the two side plates are transversely connected to form a supporting table, the connector, the upper iron core, the lower iron core and the positioning assembly are all located on the supporting table, and the connector is limited on the supporting table through the positioning assembly. A rotating table is arranged between the two side plates, and the rotating table is rotationally connected with the two side plates through a turnover mechanism; a clamping assembly is arranged on the rotating table and used for clamping a connector. By the adoption of the design of the movable supporting table and the two symmetrical side plates, stable supporting and positioning of the connector are achieved. According to the structure, the connector can be kept at a stable position in the dismounting process, so that the operation difficulty increase and the damage risk caused by position deviation are avoided.

The multi-section pressure-bearing type expansion anti-floating anchor rod structure comprises a foundation raft plate (2), an annular anchoring seat (4) is fixedly installed on a raft plate embedded part (3), and the multi-section pressure-bearing type expansion anti-floating anchor rod structure is characterized in that a cylinder body (5) is vertically arranged in a drill hole in the bottom of the anchoring seat (4); an anti-floating expansion structure (6) is arranged at the bottom of the cylinder body (5), or one or more anti-floating expansion structures (6) are arranged in the middle of the cylinder body (5) at intervals, an anti-floating anchor rod (10) is inserted into an inner cavity of the cylinder body (5), and an expanded cone frustum (11) is arranged at the bottom of the anti-floating anchor rod (10) and corresponds to the anti-floating expansion structure (6) located in the middle of the cylinder body (5). And collapse or caving of a soil layer around a pile hole is avoided when the long anchor rod is installed, the installation depth and the installation precision of the anchor rod are guaranteed, and the drawing resistance and the floating resistance are remarkably improved.

The utility model provides a three-way connecting node of a C-shaped purline and a steel beam at the side part of an assembly type integrated house, which is provided with a three-way connecting piece used for connecting the end part of the C-shaped purline at the side part of the assembly type integrated house with the steel beam, a roof panel and a steel-plastic wallboard; the three-way connecting piece is of a plate body structure, and a first connecting plate is embedded and attached between the roof panel and the steel beam and is fastened through a first self-drilling screw arranged among the roof panel, the first connecting plate and the steel beam in a penetrating mode. The second connecting plate is embedded and attached between the end part of the C-shaped purline and the steel beam, and is fastened through a second self-drilling screw arranged between the second connecting plate and the steel beam in a penetrating manner; and the third connecting plate is embedded and attached between the C-shaped purline and the steel-plastic wall plate, and is fastened through a third self-drilling screw penetrating through the C-shaped purline, the steel-plastic wall plate and the reinforcing rib in the wall plate. Reliable connection among the C-shaped purline, the steel beam, the roof panel and the steel-plastic wallboard can be achieved, manufacturing cost is low, and node construction is convenient and fast.

The application relates to a laser-based textile fabric thickness measuring device and measuring method, which comprises a base, two front and rear arranged folding mechanisms and two left and right arranged measuring mechanisms; the folding mechanism comprises a folding stand, a lifting block vertically sliding on the folding stand and a rotating shaft shaft-connected to the lifting block, the rotating shaft is fixedly connected with a mounting rod, and the mounting rod is fixedly connected with multiple side-by-side comb teeth; the measuring mechanism comprises two oppositely moving sliding base plates, the sliding base plates are fixedly connected with measuring stands, upper tooth columns and lower tooth columns are respectively horizontally slidably connected to the upper and lower ends of the measuring stands, the lower tooth columns and the upper tooth columns are transmissionally connected, laser ranging sensors and receiving plates are respectively arranged on the two lower tooth columns, the application significantly improves the accuracy, repeatability and efficiency of thickness measurement, is especially suitable for processing ultra-thin, soft or irregular surface fabrics, and provides an objective and efficient thickness detection solution for the textile industry.

The utility model discloses a curb backrest concrete construction device which comprises a first curb backrest and a second curb backrest, cement stabilized macadam layers are arranged at the bottom of the first curb backrest and the bottom of the second curb backrest respectively, inserting steel bars are arranged at one end of the first curb backrest and one end of the second curb backrest respectively, and the cement stabilized macadam layers are arranged at the other end of the first curb backrest and the other end of the second curb backrest respectively. Mounting holes are formed in the other end of the first curb backrest and the other end of the second curb backrest, positioning connecting pieces are fixedly arranged in the mounting holes, and limiting assemblies are arranged between the curbs and the first curb backrest and between the curbs and the second curb backrest correspondingly; the utility model has the beneficial effects that the structure is simple, the operation is convenient, the prefabricated curb backrests are convenient to install and connect with each other, not only is the straightness of each group of curb stones and the backrests thereof ensured, but also the integrity of the curb stones and the backrests thereof is ensured, and the curb backrests are convenient to install and connect. And the quality after forming is better.

The utility model relates to the field of sound box equipment, in particular to a sound box capable of realizing intelligent control with a light effect, which comprises a CPU (central processing unit) controller, a sound box power amplifier unit, a light illumination unit, a photoresistor control circuit and a mobile human body pyroelectric infrared sensor control circuit, the sound box power amplifier unit, the light illumination unit, the photoresistor control circuit and the mobile human body pyroelectric infrared sensor control circuit are all matched with the CPU controller, and the sound box can intelligently respond to environmental changes and human body movement signals through the core function of the CPU controller. The photoresistor control circuit and the mobile human body pyroelectric infrared sensor control circuit provide real-time data for the CPU controller, so that the CPU controller can accurately control the sound box power amplifier unit and the light illumination unit, and more intelligent use experience is provided for users.

The invention provides a cable supporting device for cable production and manufacturing equipment, and relates to the technical field of cable manufacturing. The cable supporting device for the cable production and manufacturing equipment comprises a supporting rail, a tension roller mounting frame is slidably connected into the supporting rail in a limited mode, the tension roller mounting frame comprises a mounting base, and a main tension roller assembly is mounted between movable shafts on the two sides of the top of the mounting base; the main tension roller assembly comprises two sets of movable rollers distributed in a mirror symmetry mode, and the centers of the two movable rollers are slidably connected with limiting cylinders through spring limiting. A cable is cut through the rising cutting blade, the cable on the take-up device is connected with the limiting steel rope through the fixing chuck and the clamping block when the cable is cut, and when the cable is separated from the movable roller, the limiting steel rope limits the cable within a safe range, so that residual stress or inertia in the cable is effectively avoided, and the cable is prevented from being damaged. And the rebounding phenomenon is avoided.

The utility model discloses a bent arm hinge structure and a vehicle door system.The bent arm hinge structure comprises a fixing base fixedly arranged on the end face of the side, away from a cabin door, of a vehicle frame and a bent arm rotating piece arranged on the fixing base in a hinged mode. Opening and closing of the cabin door are achieved through relative rotation of the bent arm rotating piece and the fixing base, the bent arm rotating piece is located on the inner side of the cabin door all the time in the cabin door opening and closing process, and the integrity of the hinge structure and a vehicle body is guaranteed. The bent arm rotating piece has a large internal receding space in the rotating process, so that position interference between the bent arm rotating piece and the side wall piece or the sealing rubber strip is avoided, the rotating angle of the bent arm rotating piece relative to the fixing base can be increased to a greater extent, and the maximum opening and closing angle of the cabin door is increased under the condition that the requirement for the fit clearance of a vehicle door system is met.

This invention discloses an installation method for a time-zone-division circular pedestal curtain wall. The time-zone-division circular pedestal curtain wall includes time-zone-division curtain wall units. A set of curtain wall glass is arranged with 24 units corresponding to 24 time zones, forming a pedestal shape that is smaller at the top and larger at the bottom. A time zone pointer is also provided at the top of the curtain wall glass, and the projection of the time zone pointer is projected onto the outer surface of the curtain wall glass. This invention facilitates the lighting and aesthetic requirements of the central area by setting a continuous circular pedestal curtain wall in the middle of the corridor. The setting of the lower and upper floor sloping walls facilitates the installation of the curtain wall keel, providing a fixed foundation and ensuring the overall structural integrity. The time-zone setting of the curtain wall glass ensures both aesthetic appeal and ease of installation while improving lighting efficiency. The setting of the time zone pointer and the pointer connecting wall further makes the central curtain wall resemble a sundial, enriching the structural types, and the pointer connecting wall at the connection point ensures the stability of the installation.

The sorting equipment comprises a main conveying structure and a scanning control system used for collecting express item information, and a plurality of branch conveying structures arranged front and back are installed on one side of the main conveying structure; the main conveying structure is provided with a plurality of discharging structures used for pushing the express items after information scanning to the branch conveying structures, the front side of the scanning control system is provided with a cleaning mechanism used for cleaning bar code areas on the surfaces of the express items, and the cleaning mechanism comprises a lifting frame installed on the main conveying structure. The lifting frame is provided with a sensor used for detecting the height of the passing express delivery, and the lifting frame is detachably provided with a main conveying structure used for conveying the express delivery along with the main conveying structure from front to back. According to the invention, the effect of pushing the express parcels from front to back can be ensured while the express parcels are effectively cleaned in the top surface bar code area, and in addition, the impact force generated when the express parcels are transferred from the main conveying structure to the branch conveying structures and the gliding speed are effectively reduced.

The invention discloses a silk-screen pattern splicing technology which adopts a whole-plate silk-screen splicing technology, so that a shading template is completely consistent with a subsequent silk-screen process in size, and high-precision alignment of patterns is ensured. In this way, continuity and integrity of silk-screen textures are guaranteed, the problem of errors caused by size inconformity in a traditional technology is also avoided, precision and quality of finished products are improved, the technology can directly use original drawing design for silk-screen film or screen plate manufacturing, the steps of copying and manual adjustment in the traditional technology are avoided, and production efficiency is improved. Secondly, precise splicing and removing technologies are adopted, the high and low steps are only several micrometers, the surface is free of touch feeling, and the surface of a finished product is smooth and free of protrusions. In addition, no developing white points exist in the removing process, it is guaranteed that the surface effect of a finished product is more uniform and exquisite, and the appearance attractiveness of the product and the touch experience of a user are improved.