38results about How to "Good appearance consistency" patented technology

The invention relates to the technical field of drying ovens for processing, and discloses a drying oven for water-based PU leather processing and a drying method.The drying oven comprises a preheating cavity and a primary drying cavity formed in one side of the preheating cavity, a main cavity is fixedly assembled on the side, away from the preheating cavity, of the primary drying cavity, and a final drying cavity is fixedly assembled on the side, away from the primary drying cavity, of the main cavity; a sliding rail mechanism is fixedly mounted on the inner side wall, perpendicular to the primary drying cavity, of the preheating cavity, a winding roller is slidably assembled on the side, away from the preheating cavity, of the sliding rail mechanism, and a medium-wave infrared lamp tube is fixedly mounted at the top end, facing the winding roller, of the interior of the preheating cavity. A first lamp tube set is fixedly installed on the inner side wall, perpendicular to the medium-wave infrared lamp tube, of the primary drying cavity. According to the invention, a sectional structure of the preheating cavity, the primary drying cavity, the main cavity and the final drying cavity is adopted, and differential heating assemblies of all the cavities are matched, so that a gradient drying process is realized, and the defects caused by rapid drying of a single cavity are thoroughly avoided.

The utility model relates to the technical field of hemp sheet production discloses a simple and easy rolling device, both ends of transmission shaft all fixedly connect with screw head, the top of compression roller is equipped with the scraper, and the scraper includes the storage rack, guide slot and screw rod, the both sides of storage rack all are longitudinally provided with guide slot, and the inside vertical penetration of storage rack has screw rod, and both ends of storage rack all fixedly connect with fastening ring, the bottom fixedly connected with scraper of adjusting plate, and the external thread of screw head is equipped with antiskid cover, adjustable scraper is installed on the top of compression roller, can effectively and evenly scrape off the mixture material such as sesame, molasses attached to the surface of compression roller, one aspect of this design avoids the rolling sheet thickness uneven, surface uneven etc. problem caused by too much material attachment, significantly improves the forming quality and appearance consistency of hemp sheet, on the other hand, the scraped material is guided back to the processing area, reduces the raw material waste, and is favorable for reducing production cost.

This invention relates to a coating device for a winding machine, comprising a fixed plate and several coating units. The fixed plate has a through hole in its center for a sample to pass through. The coating units are evenly arranged along the outer circumference of the through hole and are movably connected to the fixed plate. Each coating unit has a cutting part for cutting the wire end and a pressure sensor for detecting the coating pressure. A heating unit for heating the sample surface is provided on the fixed plate on one side of each coating unit. The advantages of this invention are: by using pressure sensors on the coating units to detect the coating pressure in real time, the position of the coating units can be adjusted according to the pressure signal, thereby ensuring that the pressure remains consistent throughout the coating process, avoiding excessive coating pressure that could damage the sample, improving the uniformity of the coating layer, and reducing the scrap rate. Furthermore, this invention also provides a winding machine including the aforementioned coating device.

This invention relates to the field of freeze-drying technology, specifically to an intelligent vacuum freeze dryer and its usage method. The dryer includes a main unit and a pre-freezing vacuum chamber within it, a shelf placed inside the pre-freezing vacuum chamber, the shelf having an internal cavity and a main gas inlet at its bottom for gas to enter the internal cavity; a carrying tray with multiple evenly arranged internal components for storing materials, the tray having multiple planar grids and heating elements for releasing heat, multiple push rods for moving materials within the planar grids, and an adjustment component for adjusting the position of the push rods according to different usage environments; and side rotating columns with multiple evenly rotatable components connected to the sidewalls of the carrying tray, each side rotating column having multiple exhaust ports, and the carrying tray having an efficiency-enhancing component for driving the side rotating columns.

The utility model relates to the field of gas water heater, especially a kind of external solar power generation fan smoke exhaust device.The external solar power generation fan smoke exhaust device includes smoke exhaust hood, and the smoke exhaust hood is externally connected with fan, the top of the fan is equipped with smoke exhaust pipe, solar panel and battery are equipped on the smoke exhaust hood, and the solar panel can charge battery.The external solar power generation fan smoke exhaust device provided by the utility model has the advantages of solving the problem of lack of power supply outdoors, actively carrying out smoke exhaust, and good smoke exhaust effect.

This utility model discloses a mosquito repellent bottle with an internal component, including a bottle body and an internal component. The bottle body has an inner cavity for containing the mosquito repellent. The internal component can be a real flower, dried flower, branch, artificial flower, wooden strip, etc., and is placed at an angle inside the bottle body. The bottle body is provided with a positioning structure that can position the internal component. The positioning structure can better position the internal component inside the bottle, reducing the occurrence of displacement of the internal component during assembly and transportation, resulting in better appearance consistency of the mosquito repellent bottle. Furthermore, the angled internal component can easily avoid the core rod inserted from top to bottom, reducing the impact on the normal assembly of the core rod and improving the product qualification rate.

The present application relates to a hub automatic polishing track generation method and device based on point cloud and template, first relying on hub geometric constraint to align real-time point cloud and template point cloud reference coordinate system and correct point cloud, then solving pose transformation matrix, adaptive mapping polishing track. Geometric constraint pre-locks matching optimization range, relieves single camera local point cloud and complete template cross-mismatch, normal offset defects, prevents grinding head overcut or burr residue. Pre-geometric correction offsets die casting deformation, millimeter-level positioning error, provides high-quality initial point cloud for pose solving, improves registration convergence stability, overcomes the problem of few features of hub smooth surface and easy failure of direct registration. The present application generates exclusive polishing track for each hub, replaces teaching robot fixed track blind punching, does not need artificial continuous debugging, improves batch workpiece polishing consistency, avoids artificial polishing dust noise, unstable quality and high labor cost.

This invention relates to the field of packaging machinery technology, and more particularly to a mesh bag threading machine, comprising: a mesh bag opening support assembly, wherein the opening edge of the mesh bag can be fitted onto the mesh bag opening support assembly; a mesh bag folding assembly, which can drive the opening edge of the mesh bag on the mesh bag opening support assembly to fold and deform; and a threading assembly, which can drive the rope to pass through the folded and deformed opening edge of the mesh bag. The mesh bag threading machine provided by this invention reliably positions and supports the opening of the mesh bag by setting the mesh bag opening support assembly, and automatically folds and shapes the opening edge in conjunction with the mesh bag folding assembly, and then automatically threads the rope in conjunction with the threading assembly. This allows the opening, folding, and threading processes to be connected in an orderly and continuous manner, thereby significantly improving the automation level of the processing process and the overall production efficiency, reducing manual intervention and operational errors; at the same time, the coordinated cooperation of each functional module helps to ensure the consistency of the mesh bag opening shaping and the threading position, improving the stability of product processing quality.

The application discloses an electronic device, and belongs to the technical field of communication. The electronic device comprises a shell and a decoration assembly. The shell is provided with a mounting hole. The decoration assembly comprises a decoration main body, a transparent ring, a lens, a first adhesive and a second adhesive. The decoration main body is mounted in the mounting hole. The lens is arranged on the decoration main body. The outer surface of the decoration main body is provided with an annular textured surface. The transparent ring is arranged around the decoration main body and opposite to the annular textured surface. The transparent ring is provided with a first surface and a second surface arranged oppositely. The first surface is located on the side of the transparent ring away from the shell. The second surface is located on the side of the transparent ring towards the shell. The side of the decoration main body away from the shell extends towards the direction of the transparent ring to form an annular covering area extending along the circumference of the transparent ring. The annular covering area covers at least part of the first surface. The first adhesive is arranged between the annular covering area and the first surface. The second adhesive is arranged between the second surface and the outer surface of the shell.

The invention relates to the field of molds, in particular to a plastic part injection molding mold which comprises a mold body formed by combining a lower mold frame and an upper mold frame. The lower mold core is fixedly arranged on the lower mold frame; the upper mold core is fixedly arranged on the upper mold frame; a mold cavity and a mold core which are used for injection molding of the charging gun sheath are arranged between the lower mold core and the upper mold core; the follow-up cutting module is arranged between the lower mold core and the upper mold core and comprises a cutting assembly, and the cutting assembly is used for cutting a stub bar between the charging gun sheath and the sprue after injection molding; the association assembly is used for controlling the cutting assembly to execute material head cutting and pouring gate avoiding actions along with mold opening and closing of the upper mold frame and the lower mold frame; by arranging the follow-up cutting module, in-mold follow-up cutting of the stub bar is achieved, the stub bar cutting procedure and the injection molding and mold opening procedure are effectively integrated, the overall production takt is greatly shortened, and the production efficiency is improved.

The invention discloses an air bag cover plate structure and a manufacturing method thereof, the air bag cover plate structure comprises a driver sign and a cover plate, the driver sign comprises a visual part and a fixed part, the visual part and the fixed part are located on different planes, and the fixed part is arranged around the circumferential direction of the visual part; the mark and the cover plate are integrally formed in an injection molding mode in an insert mode, the fixing part is locked in the cover plate through an injection molding material of the cover plate, and the visible part forms a visible area of the outer surface of the cover plate. According to the air bag cover plate structure, a traditional buckle assembly mode is replaced, the assembly gap between the driver sign and the cover plate is eliminated from the source, the surface difference problem caused by poor attachment of the driver sign and the cover plate is solved, and the appearance consistency and the visual quality of the outer surface of the air bag cover plate are greatly improved.

The application discloses a portable plastic pipe surface roughening device and belongs to the field of pipeline processing equipment. The device comprises a shell body, a motor and sandpaper. One end of the shell body is provided with an opening, and the opposite end is provided with an end cover. The end cover is provided with an opening and a power switch. An annular convex block is arranged on the inner wall of the shell body close to the opening. The annular convex block and the inner wall of the shell body are respectively provided with an upper taper surface and a lower taper surface. The motor is arranged in the shell body. An elastic member is arranged between the motor and the end cover. A trigger type timing switch is arranged on the top of the motor. The transmission shaft of the motor is connected with an adapter disc. The adapter disc is connected with a sandpaper mounting bracket in a detachable mode. The sandpaper mounting bracket is provided with sandpaper. The end of the sandpaper mounting bracket is provided with a bent part. The bent part is provided with a back taper surface corresponding to the lower taper surface. The portable plastic pipe surface roughening device can improve the appearance consistency of products, improve production efficiency and reduce production cost.

The utility model discloses a tin soldering device for sensor assembly, which comprises a four-axis mechanical arm, a lifting assembly and a guide pipe, an angle adjusting assembly is mounted on the four-axis mechanical arm, the angle adjusting assembly is connected with a lifter, a welding gun is mounted at the lower end of the lifter, the lifting assembly is connected with the lifter, and the guide pipe is connected with the lifting assembly. An exhaust pipe is mounted on the lifting assembly, the guide pipe is connected with the lifting assembly, and a tin bar is inserted into the guide pipe; the four-axis mechanical arm can flexibly control the welding gun to move, the lifter finely adjusts the height of the welding gun, precise welding is achieved, the problems that production efficiency is low and the reject ratio of sensors is high are solved, the produced sensors are better in appearance and quality consistency, the exhaust pipe extracts smoke generated in the tin soldering process, the smoke is prevented from diffusing into the environment, air is kept fresh, and the production efficiency is improved. The operation comfort is improved, and the risk of soldering tin smoke is remarkably reduced.

The invention relates to the technical field of traditional Chinese medicine concentrated pills and preparation thereof, in particular to traditional Chinese medicine concentrated pills for treating cardiovascular and cerebrovascular diseases and a preparation method of the traditional Chinese medicine concentrated pills. The concentrated traditional Chinese medicine pill is prepared from the following raw materials in parts by weight: radix astragali seu hedysari, ginseng under forest, radix ophiopogonis, fructus schizandrae, radix paeoniae rubra, semen persicae, cortex moutan, radix angelicae sinensis, poria cocos, rhizoma chuanxiong, saffron crocus, salvia miltiorrhiza bunge, pseudo-ginseng and the like, wherein the radix astragali seu hedysari, the salvia miltiorrhiza bunge and the ginseng under forest are prepared into standard fermented traditional Chinese medicine powder through a micro-fermentation process combining an ancient method and a modern method; and carrying out low-temperature full-wall-breaking superfine grinding on the other raw materials to obtain superfine powder. Through cooperation of low-temperature wall-breaking superfine grinding, controllable micro-fermentation and solid dispersion slow-release forming, effective components are released more sufficiently, absorption is more stable, batch-to-batch consistency is better, taking is more convenient, and better storage stability is achieved.

This invention discloses a deep learning-based video generation method and system, comprising the following steps: acquiring input content including text instructions and reference images, generating a scene layered relationship graph and visual patch tokens; constructing persistent relationship features based on the scene layered relationship graph and local relationship fragments and encoding them into a persistent relationship token sequence; inputting the noisy persistent relationship token sequence into a topology-aware DiT model to generate a dynamic topology graph sequence; generating a depth map sequence and an object index map sequence based on the dynamic topology graph sequence, and establishing an object continuity directory; inputting the noisy visual patch tokens and the object continuity directory into a geometry-guided DiT model to obtain a video latent space feature sequence; performing spatiotemporal consistency decoding, and outputting the target video stream. This invention improves relationship consistency, occlusion recovery capability, and spatiotemporal continuity in the video generation process.

The application provides a deformation-resistant paperboard for a packaging box and a preparation method thereof. The deformation-resistant paperboard comprises two layers of cardboard and a core layer arranged between the two layers of cardboard. The core layer comprises the following raw materials in parts by mass: 100 parts of wood leaf fiber; 2-4 parts of nanocellulose; 8-12 parts of polyvinyl alcohol; 1-3 parts of polyethylene imine; 4-8 parts of hydrophilic modified inorganic filler; and 1-3 parts of crosslinking agent. By optimizing the structure and component ratio of the core layer, the crease area of the paperboard can remain stable deformation after hot pressing and forming, and is not easy to rebound. Meanwhile, the paperboard can maintain good dimensional stability under humidity change conditions, thereby improving the forming precision and use durability of the packaging box.

The utility model discloses a double -sided heat dissipation's car headlamp driver, including base, the inside of base is equipped with drive circuit board, the upper and lower surface of drive circuit board is equipped with a plurality of scattered arrangement's power device respectively, the upper portion of base is connected with upper cover, and the upper cover is equipped with the recess or the boss corresponding with power device respectively on base and, and the surface of power device and recess or boss between coating has the heat -conducting glue. The utility model discloses power device scattered arrangement on the upper and lower surface of drive circuit board, effectively promoted the efficiency of heat dissipation, makes the driver can satisfy higher power demand. The utility model discloses base and the upper cover are equipped with the recess or the boss corresponding with power device respectively on, and the surface of power device and recess or boss between coating has the heat -conducting glue, can fast transfer heat to base and the upper cover, guarantees the heat dissipation effect.

The application provides a cabinet type fresh air conditioner, comprising: an air conditioner shell, the air conditioner shell comprising an air inlet panel, the air inlet panel being provided with an indoor air inlet; an air outlet duct, comprising an upwardly extending upper air duct and a downwardly extending lower air duct, the air outlet duct being provided with an indoor centrifugal fan; a heat exchanger, being arranged between the air inlet panel and the air outlet duct, the heat exchanger comprising an upper heat exchange section and a lower heat exchange section, the connecting position of the upper heat exchange section and the lower heat exchange section corresponding to the position of the centrifugal fan, and the lower heat exchange section being inclined from top to bottom towards the side of the lower air duct to form an airflow accommodating space between the lower heat exchange section and the air inlet panel; and a fresh air device, comprising a first fresh air outlet, the fresh air sent by the first fresh air outlet being capable of entering the airflow accommodating space. The application can reduce the overall floor area volume of the air conditioner, especially the thickness, and improve the appearance consistency and appearance aesthetics of the air conditioner.

This invention discloses a shower head, comprising: a body having a water inlet channel; a first water distribution chamber, the first water distribution chamber having a first movable shaft, a first water outlet, a second water outlet, and a first water inlet connected to the water inlet channel, the first movable shaft being used to open and close the first water outlet and the second water outlet; a second water distribution chamber, the second water distribution chamber having a second movable shaft, a third water outlet, a fourth water outlet, and a second water inlet connected to the second water outlet, the second movable shaft being used to open and close the third water outlet and the fourth water outlet; a first water outlet channel that can be connected to the first water outlet, a second water outlet channel that can be connected to the third water outlet, and a third water outlet channel that can be connected to the fourth water outlet; a first water outlet hole that can be connected to the first water outlet channel and the second water outlet channel, the second water outlet channel being coaxially arranged with the first water outlet hole; capable of realizing a powerful single-pour water injection plus sheet water output at the same hole position, convenient for user use.

This application relates to a ventricular assist device (VAD), which includes a pump body and a motor. The pump body includes a pump housing and an outlet tube, with the outlet tube disposed on the outer peripheral surface of the pump housing and extending outward from the outer peripheral surface. The motor and pump body are arranged along the axial direction of the VAD. The motor includes a housing and a cable outlet assembly. The housing is connected to the pump housing, and the cable outlet assembly is disposed on the housing. The cable outlet assembly extends from the housing along the outer peripheral surface of the housing in a bent direction away from the outlet tube. This allows the cable outlet assembly to protrude radially with a smaller height relative to the outer peripheral surface of the housing, thereby reducing the outer diameter and volume of the VAD. This improves the ease of implantation and wearing comfort of the VAD, and also prevents the swaying of the cable within the cable outlet assembly from interfering with the artificial blood vessel connected to the outlet tube, thus achieving stable blood pumping by the VAD.

This utility model relates to a sealing strip pressing device, comprising: a frame having a pressing channel; a pressing seat slidably disposed in the pressing channel along a first direction, and having a pressing groove recessed inward therein for accommodating the sealing strip, the pressing groove having an arc-shaped structure; and a pressing head slidably disposed in the pressing channel along a second direction, and having a pressing block that mates with the pressing groove; wherein the first direction is perpendicular to the second direction. This sealing strip pressing device, by setting an arc-shaped pressing groove, allows for better conforming to the outer contour of the sealing strip, overcoming the uneven pressing problem caused by traditional planar pressing, and improving the tape bonding quality. Furthermore, because the pressing block on the pressing head matches the pressing groove and slides along a direction perpendicular to the pressing seat, a top-down wrapping pressing can be achieved, reducing the risk of tape misalignment, bubbling, or curling.

This utility model discloses a valve sleeve integrated hot nozzle, relating to the field of hot runner technology. It includes a hot nozzle body with a hot runner channel inside. The hot runner channel has a main flow channel, a primary flow channel, and secondary flow channels connected sequentially. The main flow channel is arranged along the central axis of the hot nozzle body. Multiple secondary flow channels are arranged in a ring around the central axis of the hot nozzle body. Multiple primary flow channels are arranged, each corresponding to one of the secondary flow channels, and flow obliquely or branching from the main flow channel to guide and divert molten plastic in the main flow channel to the secondary flow channels. Each secondary flow channel is equipped with a valve control assembly, which includes a valve needle and a valve sleeve. The valve needle is movably inserted into the valve sleeve, and the opening and closing of the discharge hole at the bottom of the secondary flow channel is controlled by the axial sliding of the valve needle relative to the valve sleeve. This helps to reduce the dimensional tolerances of multi-cavity injection molded parts.

This utility model relates to the field of monitoring equipment, specifically disclosing an online monitoring and maintenance device. It includes a mounting base, a protective cover, a support plate, snap-fit ​​blocks, and a monitoring body. The monitoring body is rotatably mounted on the lower end of the mounting base via a rotating shaft and bearing, allowing for pitch rotation. The protective cover covers the monitoring body and is detachably connected to the mounting base via a snap-fit ​​structure. The protective cover has snap-fit ​​parts with snap-fit ​​grooves on both sides. Support plates are symmetrically arranged on both sides of the lower end of the mounting base. The snap-fit ​​blocks are slidably mounted on the mounting base's slide rails and snap-fit ​​into the snap-fit ​​grooves. The support plate has a snap-fit ​​mechanism for driving the snap-fit ​​blocks, and the mounting base has a linkage mechanism for driving the snap-fit ​​blocks. The snap-fit ​​mechanism includes a push plate, a sliding rod, and a pre-compressed elastic element. The linkage mechanism includes a rotating disk, a connecting rod, and a push rod, which can synchronously drive two snap-fit ​​blocks. This device is easy to assemble and disassemble, reliably connected, precisely adjustable, and offers excellent protection, making it suitable for complex environments.

The utility model relates to the field of bicycle fittings paint spraying, disclose a kind of bicycle fittings paint spraying device, including the support platform for supporting, the top of the support platform is rotatably connected with rotary table, the inside of rotary table is rotatably connected with multiple rotating rods, the top of the rotating rod is all fixedly connected with rotary limit disc, the top of the rotary limit disc is rotatably connected in the top of rotary table, the top of the rotary limit disc is all fixedly connected with clamping frame, the top right side of the support platform is fixedly connected with right side support frame, the inside of right side support frame is fixedly connected with right side limit frame, paint spraying assembly is installed in the inside of right side limit frame. In the utility model, the problem of incomplete edge coverage and uneven film thickness caused by spraying is solved, the corrosion resistance, appearance consistency and surface defects such as orange peel and particles are effectively prevented, and the coating quality and durability are improved.

The utility model relates to the technical field of food processing, in particular to a containing device for a spiral refrigeration house, which comprises a casing, a groove with an upward opening is arranged on the inner side of the casing, the bottom of the groove is an inclined plane, a container for containing materials is arranged in the groove, and the container is detachably mounted in the groove. The problems that in the solidification process of fluid materials in the spiral refrigeration house, the materials flow in a container, and the appearance of a final product is affected can be solved.

This invention relates to the field of plastic processing machinery, specifically disclosing an intelligent correction and cutting system and method for PE foam boards. The system includes modules for online acoustic scanning, multimodal data fusion and defect characterization, dynamic path planning and correction, adaptive execution control, and system collaborative management. It detects defects in real time through online ultrasonic scanning, identifies and locates them using a deep learning model, and dynamically plans obstacle avoidance or process adjustment paths based on defect types, while simultaneously controlling the cutting execution mechanism. This achieves adaptive correction during the cutting process, improving cutting quality, tool life, and production efficiency. This invention, by integrating online acoustic scanning and deep learning recognition technologies, achieves for the first time real-time, accurate detection and classification of invisible defects inside PE foam boards during the cutting process.

The utility model relates to production packing equipment technical field discloses a drip irrigation tape production packaging and packing device, including work bench, fixed unit on it, winding mechanism and press down portion on mounting bracket. Fixed unit includes support rotating mechanism and clamping mechanism, realizes the rotary drive and radial clamping fixation of drip irrigation tape volume respectively, winding mechanism includes winding motor, double -jointed telescopic link and packaging film post, realizes the revolution winding of packaging film around drip irrigation tape volume, press down portion and winding motor output shaft coaxial arrangement are used for pressing tightly drip irrigation tape volume. The utility model discloses through the reverse coordinated rotation of fixed unit and winding mechanism, realizes the high -efficient, even film winding package, and is suitable for the automatic packaging of different diameter drip irrigation tape simultaneously, has compact structure, and the technical advantage that packaging tightness is high, film volume replacement is convenient.

The utility model discloses a high-precision high-efficiency low-cost silk screen plate relates to silk screen plate technical field. Including the screen plate body, the screen plate body is integrated structure, is equipped with a plurality of grid units on it, and the area where each grid unit is respectively with the silk screen printing area of product corresponds, and the plane position where each grid unit is respectively with the plane position where the silk screen printing area of product corresponds, is equipped with the isolation structure between adjacent grid units, still be equipped with the positioning structure on the screen plate body, and the positioning structure is adapted with the first positioning hole on the product. The utility model discloses through integrating multiple traditional screen plate into integrated structure and dividing independent grid unit, realizes single silk screen printing to complete multicolor, the silk screen printing operation of multiple plane, effectively promotes silk screen printing precision and efficiency, and reduces production cost.

This invention belongs to the field of cigarette manufacturing technology and discloses a sealing forming device and cigarette production equipment. The sealing forming device includes a mounting frame, a first pushing mechanism, a smoke exhaust frame, and a pressurizing mechanism. The smoke exhaust frame is mounted on the mounting frame and forms a smoke exhaust channel extending along a first direction within the smoke exhaust frame. The smoke exhaust channel has a smoke inlet on one side in a second direction. The first pushing mechanism is used to push the cigarette pack located at the feeding position of the cigarette pack along the second direction. The pressurizing mechanism includes a rotary drive, a connecting arm, and a pressing arm. The rotary drive is connected to the lower side of the mounting frame. The pressurizing arm is connected to the connecting arm at an angle and passes through the smoke exhaust channel. The rotary drive can drive the connecting arm to rotate about the first direction as an axis. At least a portion of the end of the pressurizing arm is correspondingly positioned with the feeding position of the cigarette pack in the second direction and can abut against the top of the seal. The sealing forming device and cigarette production equipment produce cigarette packs with a high seal qualification rate, improving the appearance consistency of the products.