30624 results about "Packaging Case" patented technology

The invention discloses a packaging box printed matter printing quality detection method, which comprises the following steps of: acquiring a high-resolution printing image through an image acquisition module, preprocessing and segmenting the printing image by an image processing module, optimizing image quality, classifying the preprocessed image by an image classification module according to characters, patterns and color blocks, and detecting the printing quality of a packaging box printed matter. The defect detection module performs multi-dimensional detection on the classified preprocessed images based on image parameter data, the quality analysis module quantitatively evaluates quality scores of characters, patterns and color blocks based on detection results, and the computer terminal generates a comprehensive score through weighting calculation and automatically generates a detection report; according to the packaging box printed matter printing quality detection method, complex defects such as font errors, stroke breakage, pattern deviation, color deviation and stains are effectively recognized through multi-dimensional defects, the manual reinspection cost is reduced through full-process automatic processing, and the quality of printed matter is visually reflected through a quantitative evaluation system.

The invention discloses a detection system and method for packaging box production and processing, and belongs to the technical field of packaging production quality detection. The invention discloses a detection system and method for packaging box production and processing. The system comprises a dual-polarization-angle imaging module, a structured light three-dimensional reconstruction module, a temperature compensation module, a defect judgment module and a sorting execution module. According to the method, dual-polarization images and three-dimensional point clouds are synchronously collected, qualified standard values are dynamically calibrated in combination with temperature, accurate recognition and grading judgment of surface and internal defects of the transparent plastic packaging boxes are achieved, and finally unqualified products are removed through a high-speed sorting mechanism. The method solves the problem of misjudgment caused by reflective interference and temperature drift of the transparent material, and is suitable for online detection of a high-speed production line.

The invention relates to the technical field of UV printing, and discloses a packaging box UV printing method and device and computer device.The method comprises the steps that feature extraction is conducted on CAD model data of a packaging box, and a feature data set of the packaging box is obtained; carrying out coordinate mapping on the working space of the robot to obtain a conversion matrix and space calibration data of the mounting position of the UV nozzle; edge detection and feature point matching are conducted, and position coordinate data and posture angle data of the UV printing area are obtained; performing multi-section track planning on the ink jet track to obtain initial jet printing track control data; and performing synchronous control calculation on the UV light source to obtain a UV light source power modulation parameter and UV light source trigger time sequence data. According to the method, by dynamically adjusting the power output and the triggering time sequence of the UV light source, uniform curing of the ink droplets is achieved, the problem that curing of the ink droplets at different positions is not uniform is effectively solved, and the printing quality is improved.

The utility model relates to the technical field of packaging of support suites, in particular to an automatic packaging production line for support suites, which comprises a packaging box conveying device, a packaging box sealing device, a packaging box two-dimensional code spraying and labeling device and a packaging box stacking device. A specification putting device, a bottom plate putting device, a foot cup putting device and a buckle putting device are arranged on one side of the packaging box conveying device. Compared with the prior art, the automatic packaging machine is high in overall automation degree, can replace a manual mode to conduct automatic packaging operation on the support suite, can reduce a large amount of workloads of operators, reduce overall needed time and improve efficiency, can avoid the situations of omission and misplacement, and improves the production efficiency. And the packaging machine can be well suitable for packaging operation of a large batch of the support suites.

The invention relates to the technical field of 3D printing, and discloses an environment-friendly packaging box rapid forming method and system based on biodegradable materials, and the method comprises the steps that a thermal-structure coupling finite element model is established; based on the thermal-structural coupling model, a multi-objective optimization model is constructed, and structural design parameters and initial printing path configuration are obtained; training a printing control strategy by utilizing a strategy optimization algorithm; according to the structural design parameters, the printing path configuration and the printing control strategy, a layer-by-layer printing path and a supporting structure configuration scheme matched with the printing object are generated; and the 3D printing process is executed, and closed-loop adjustment is conducted according to the control strategy. According to the method, the thermal-structural coupling finite element model based on the biodegradable material is constructed, and changes of a temperature field, a stress field and a thermal strain field in the printing process are accurately simulated, so that a printing path and supporting structure configuration are optimized, the printing precision is improved, structural instability caused by thermal deformation and interlayer stress is avoided, and the strength and stability of an object are ensured.

The invention relates to the technical field of food packaging, and particularly discloses a compression-resistant food packaging box which comprises a box body, four compression-resistant plates are slidably connected to the side face of the box body, a buffer frame is slidably connected to an inner cavity of the box body, a top cover is slidably connected to the top end of the buffer frame, and compression-resistant assemblies are arranged on the two sides of the top end of the box body. According to the food packaging box, a certain buffering effect can be achieved through the compression-resistant assembly, the influence of pressure on food in the packaging box is reduced, when the food packaging box is subjected to certain extrusion force, an alarm can be given to remind a worker to pay attention to avoid continuous extrusion, and at the moment, the packaging box has a secondary compression-resistant effect; according to the food packaging box, the food can be flexibly fixed to the inner wall of the packaging box through the limiting assembly, the influence of shaking of the packaging box in the transportation process on the food is reduced, meanwhile, the limiting mechanism can be adjusted according to the size of the food, and the packaging box can limit the food of various specifications.

The utility model provides packaging box sealing paper removing equipment, and relates to the technical field of packaging auxiliary equipment. The box sealing paper comprises inner sealing paper and outer sealing paper, the removing equipment is provided with a heating station and a splitting station which are sequentially distributed, and the removing equipment comprises a heating assembly located on the heating station and used for heating the outer sealing paper; the removing structure is located at the splitting station, and the removing structure comprises a transposition assembly, a first removing assembly and a second removing assembly; the first removing assembly and the second removing assembly are arranged on the position changing assembly, the position changing assembly is configured to be switched between a first state and a second state, in the first state, the first removing assembly faces the outer sealing paper and removes the outer sealing paper, and in the second state, the second removing assembly faces the inner sealing paper and removes the inner sealing paper. According to the packaging box sealing paper removing equipment, the removing time of the box sealing paper can be saved, and the removing efficiency of the box sealing paper is improved.

The invention discloses a medicine packaging box pattern printing defect detection method, and relates to the technical field of printing quality detection, and the main scheme is as follows: collecting to-be-detected printing data and standard printing packaging box template data, and then calculating a character deviation index, a pattern position coordinate index and a to-be-detected color index according to the data; wherein the character deviation index is obtained by the pixel and format similarity index of the character area; the pattern position coordinate index is calculated based on the standard position coordinate system number and the data to be measured; a color index to be detected is calculated by a deviation color coefficient and the like, then text, position and color index thresholds are set, whether a text area, a pattern position and a pattern color are qualified or not is judged by comparing each index with a corresponding threshold, the printing defect is judged to exist as long as one of the indexes is unqualified, and the method can effectively detect the printing defect.

The utility model discloses a bearing storing and feeding device which comprises a base, a supporting frame, a storing assembly and a pushing assembly, the supporting frame is arranged on the base, the storing assembly comprises an inclined discharging track obliquely arranged on the supporting frame, bearings are stacked in the inclined discharging track in order and fall onto the base along the track diameter, and the pushing assembly is arranged on the base. And the pushing assembly is used for pushing the bearings falling on the base to a to-be-packaged position in a unified mode. Bearings to be packaged are sequentially placed in the inclined discharging track, the bearings can sequentially slide into the vertical discharging channel through the track diameter of the inclined discharging track, when the bearings fall onto the upper surface of the base through the discharging channel, the power output end of the pushing air cylinder drives the pushing rod at the moment, the pushing rod drives the pushing plate to move in the direction of the bearings, and the bearings are packaged. The arc-shaped grooves are matched with the outer circles of the bearings, the multiple bearings can be pushed into a packaging box in a unified mode along with movement of the material pushing plate, manual taking and placing one by one are not needed, time cost is saved, and working efficiency is improved.

The present invention discloses an automatic box loading device and a box loading method for glass products. The automatic box loading device for glass products includes a box supply mechanism assembled on a frame for providing empty boxes; a box picking mechanism for picking a single empty box; a box supporting and transporting mechanism for supporting and transporting box bodies; a loading mechanism for transferring glass products into the box bodies; a box blocking mechanism for inputting the box bodies filled with glass products into a box storage mechanism; and a box storage mechanism for storing the box bodies filled with glass products. The automatic box loading method for glass products includes the following steps: S1. Box supply; S2. Box picking; S3. Box supporting; S4. Loading; S5. Box blocking; S6. Box storage; S7. Resetting of each mechanism, and repeating the above steps. The present invention facilitates the accurate and orderly filling of boxes with glass products efficiently and with high quality. The present invention is applicable to an automatic box loading device for glass products and is used for loading bottle bodies on a bottle sorting line into packaging boxes.

The utility model discloses a display device capable of being disassembled quickly, relates to the technical field of packaging boxes, and aims to solve the problem that when a display article is displayed, the article needs to be placed in a display cover, so that when the article is taken, limiting devices at the two ends of the display cover need to be shifted at the same time, and the display cover is not limited. The problem that the use efficiency of the device is reduced due to the fact that a protective cover can be stably placed on a display base under the condition that a limiting device is not arranged, even if limiting is relieved, the display cover cannot be directly and automatically moved upwards conveniently is solved, and the display device comprises a containing box and a cover plate. And the cover plate is arranged above the placement box, bolts can be conveniently moved towards the two sides through cooperation of arranged telescopic rods and first tensioning parts, a supporting plate can be conveniently moved upwards through reset springs, and meanwhile the position of the supporting plate can be supported, blocked and limited through the position of limiting pins.

The utility model relates to an integrally-torn display packaging box, and belongs to the technical field of medicine packaging. The packaging box comprises a box body and a front face built-in layer, the section of the box body is rectangular, the box body is closed, a containing cavity is formed in the box body and used for containing contents, the box body comprises a rectangular box front face, two tearing lines are arranged at preset positions of the box front face, the two tearing lines are horizontally arranged at intervals, and an easy-to-tear strip is arranged between the two tearing lines; the front built-in layer is matched with the box front, the front built-in layer is connected with the inner side of the box front, the front built-in layer and the box front are arranged in a stacked mode, an image-text area is arranged on the first side, close to the box front, of the front built-in layer, the image-text area is used for displaying information of contents and is used for being arranged corresponding to the easy-to-tear strip, and the easy-to-tear strip can cover the outer side of the image-text area. And the image-text area can be exposed after the easy-to-tear tape is torn. The display effect of the packaging box can be improved.

The utility model discloses cigarette packaging paper. The cigarette packaging paper comprises an inner part, an outer part, a release layer (105) and an adhesive sticker layer (106), wherein the release layer (105) and the adhesive sticker layer (106) are arranged between the inner part and the outer part; the outer part sequentially comprises an outer PE (polyethylene) lamination layer (101), an outer paper layer (102), an outer composite adhesive layer (103) and an outer PET (polyethylene terephthalate) layer (104); the inner part sequentially comprises an inner PET layer (107), an inner composite adhesive layer (108), an inner paper layer (109) and an inner PE lamination layer (110); the release layer (105) is close to the outer PET layer (104), and the adhesive sticker layer (106) is close to the inner PET layer (107). According to the utility model, the outer PE lamination layer and the inner PE lamination layer are respectively laminated on the outermost layer and the innermost layer of the packaging paper to form the double-sided laminated paper, so that the leakproofness and the barrier property of the paper are effectively improved. The pressure relief device is arranged at the bottom of the packaging box, so that the problem that the whole packaging box swells due to the fact that the sealing performance of the packaging box is improved is solved.

The design consists of a rectangular shape on the left side, excluding the dotted lines; in the center of the drawing, there is an arched window-shaped feature with a curved upper portion; floral patterns are arranged along the border of the arched window, and a cow's face is depicted at the bottom of the drawing; the nutrition facts and full amino acid in the drawing form no part of the claimed design.

The embodiment of the utility model provides a removing structure and removing equipment for box sealing paper of a packaging box, and relates to the technical field of packaging. The packaging box sealing paper removing structure comprises a first separating assembly and a second separating assembly, wherein the first separating assembly is used for separating outer sealing paper on a packaging box; the second separating assembly is used for separating the inner sealing paper on the packaging box; the adjusting assembly comprises an adjusting seat, a first adjusting part and a second adjusting part, the first adjusting part is arranged on the adjusting seat, the first adjusting part is connected with the first separating assembly and rotates around the axial direction of the adjusting seat relative to the adjusting seat, and the second adjusting part is arranged on the adjusting seat and connected with the second separating assembly; the extending directions of the first adjusting part and the second adjusting part are the same, and the second adjusting part rotates around the axial direction of the adjusting base relative to the first adjusting part, so that the projection of the first separating assembly and the projection of the second separating assembly on the horizontal plane are staggered. According to the structure, the occupied space is reduced, and the equipment cost is reduced.

The invention relates to the technical field of packaging box production, and discloses a packaging box placing device for nutritious food production, the device comprises a bottom plate, a plastic packaging box main body and supporting legs symmetrically and fixedly mounted at the bottom of the bottom plate, and side plates are symmetrically and fixedly connected to the front side and the rear side of the top of the bottom plate; a conveying belt is fixedly mounted below the interiors of the two side plates, placing mechanisms are uniformly arranged on the outer side surface of the conveying belt, and drying mechanisms are arranged on the sides, close to the conveying belt, of the side plates; the placing mechanism comprises a base plate and an arc-shaped block which are fixedly connected with the conveying belt, the drying mechanism comprises a driving unit and a drying unit, the driving unit comprises a rack, a gear part and a guide inclined plate slidably installed on one side of the interior of a side plate, and one side of the gear part is fixedly connected with a connecting rod; the problem that the plastic packaging boxes are adhered to the conveying belt or the patterns fall off due to the fact that the patterns of the plastic packaging boxes are not uniformly dried in an auxiliary mode during placing and conveying is solved.

A cushion package box includes a box body, a first cushion member and a plurality of paper tubes. The first cushion member is disposed in the box body and the first cushion member has a porous structure. The plurality of paper tubes is disposed in the box body. At least one of the plurality of paper tubes is in contact with the first cushion member. An opening direction of the porous structure is different from an opening direction of the at least one paper tube.

The invention relates to the technical field of environment-friendly materials, and discloses a high-strength degradable packaging material and application of the high-strength degradable packaging material in cosmetic packaging materials.The preparation method of the high-strength degradable packaging material comprises the steps that polylactic acid, vanillic aldehyde modified polyester, polyadipic acid, triethyl citrate, calcium stearate and an antioxidant are added into a high-speed mixing machine, and the mixture is stirred to be uniform; mixing at 60 to 80 DEG C for 10 to 20 minutes to obtain a mixed material; the mixed material is subjected to melt blending through a double-screw extruder, the blending temperature is 160-180 DEG C, the screw rotating speed is 250-300 rpm, extrusion granulation and drying are conducted, and the high-strength degradable packaging material is obtained. The high-strength degradable packaging material can be applied to cosmetic packaging materials such as bottle bodies, bottle caps, hoses and packaging boxes. The prepared packaging material is high in mechanical strength and has good degradability and flame retardance.

The utility model provides batch boxing equipment for medicine bottles, and relates to the technical field of medicine boxing. The boxing equipment comprises a conveying belt unit and a boxing unit; a first blanking groove is formed in a bearing plate in the boxing unit, and a second blanking groove is formed in a sliding block; the medicine bottles are conveyed by the conveying belt unit and can enter the second blanking groove of the sliding block, at the moment, the second blanking groove and the first blanking groove are in a staggered state, and the medicine bottles are supported by the bearing plate and actually located on the bearing plate; a packaging box for containing medicine bottles is placed in a bottling space below the blanking area of the bearing plate, after the second blanking groove is filled with the medicine bottles conveyed by the conveying belt, the sliding block is driven by the driving piece to move downwards, the second blanking groove of the sliding block coincides with the first blanking groove of the bearing plate, the medicine bottles in the blanking grooves lose bottom supporting, and then the medicine bottles are placed in the bottle containing space. And the free falling body falls into a packaging box for containing the medicine bottles to complete boxing. The equipment is simple in structure, low in investment cost and easy to maintain, and good benefits can be obtained.

The invention relates to the technical field of intelligent manufacturing in the packaging industry, in particular to a packaging box production line monitoring system based on artificial intelligence, and aims to solve the problems that in the prior art, accurate feature extraction and classification cannot be carried out on packaging box images, multi-source information cannot be weighted and integrated by using an attention mechanism, and the detection accuracy is poor. And the accuracy of identifying the surface defects of the packaging box is improved. According to the invention, standardization, feature extraction and classification are carried out on packaging box images by using a convolutional neural network through a defect identification module, vibration, noise and temperature data collected from a die-cutting machine are processed and then fused with image features, multi-source information is weighted and integrated by using an attention mechanism, unified feature representation is generated, defect determination is completed by a full connection layer, and the defect identification accuracy is improved. And the accuracy and stability of the model in a complex environment are improved.

The invention discloses a full-automatic box covering and tongue inserting machine, and relates to the technical field of automatic cover folding equipment for packaging boxes. According to the scheme, the full-automatic packaging machine comprises a conveying mechanism, a lug folding mechanism for folding side lugs of a box, a cover pressing mechanism for pressing a box cover of the box downwards, a tongue clamping assembly for clamping an insertion tongue of the box towards the outer side, a cover folding mechanism for folding a cover tongue on the box cover and a cover inserting mechanism for inserting the cover tongue on the box cover into the box. The conveying mechanism is used for sequentially transferring the box to be packaged to stations of the lug folding mechanism, the cover pressing mechanism, the tongue clamping mechanism, the cover folding mechanism, the cover inserting mechanism and the tongue inserting mechanism for operation; according to the automatic folding device, the side lugs of the packaging box are automatically folded, the cover tongues and the insertion tongues are automatically folded and inserted into the box, the working efficiency is further improved, and the labor cost is reduced.

The invention discloses a method and system for detecting defects of a packaging box by using image processing, and relates to the technical field of automatic production, and the method comprises the steps: obtaining a high-resolution image of a key area on the surface of the packaging box, and carrying out the preprocessing; matching feature points in the feature descriptor matrix Euclidean with feature points of a standard template image through a K-nearest neighbor algorithm, and aligning the matched feature points by adopting a deformation tolerant image alignment algorithm; feature point density analysis is carried out on the aligned packaging box image, and a grid area with potential flaws on feature points is identified; based on the identified potential flaw area, using a gray-level co-occurrence matrix to carry out texture feature analysis, and further judging whether the change of the surface texture of the packaging box accords with the flaw features or not; through feature point density analysis, an area with possible flaws on the surface can be quickly identified, and texture feature analysis is performed based on GLCM, so that the detection precision of tiny flaws is further improved.

The utility model discloses a press type order turntable and packing box with order turntable, the order turntable includes base, panel and pointer, base middle part is equipped with the rotating shaft, on the rotating shaft is rotatingly equipped with inertia disc, turning wheel and turning column, turning wheel top is equipped with spiral groove, turning wheel top is equipped with the rotating shaft, turning wheel top is equipped with the rotating shaft, turning wheel top is equipped with the rotating shaft, turning wheel top is equipped with the rotating shaft. The turning column is inserted into the turning wheel through spiral teeth meshed with the spiral groove, a first spring is arranged between the turning wheel and the base, a second spring is arranged between the turning column and the base, driving teeth are arranged at the bottom of the turning wheel, and driven teeth are arranged at the top of the inertia disc. When the direction changing column is pressed, the direction changing wheel can be driven to make contact with the inertia disc and rotate under matching of the spiral teeth and the spiral grooves, after the direction changing column is loosened, the direction changing column and the direction changing wheel reset upwards under the action of the spring, the inertia disc can continue to rotate under the action of inertia of the inertia disc, and therefore irregular stop of the pointer is achieved, and the whole device is small and exquisite in structure, convenient to operate and high in practicability. The wine bottle can be arranged on a packaging box, and interestingness in the drinking process is improved.

A packaging box for a razor assembly is proposed. The packaging box may include a first packaging unit including a first accommodation space open at an upper portion, the first packaging unit including a coupling opening open in a lateral direction at least on one side of the longitudinal direction of the first accommodation space. The box may also include a second packaging unit including a second accommodation space configured to accommodate the first packaging unit, the second packaging unit including a wing configured to allow at least a portion thereof to enter a lateral side of the coupling opening in an in-position state, in which the first package unit received in the second accommodation space is not moved longitudinally. When the wing pivots about a first pivot axis parallel to the lateral direction, the first packaging unit moves in the longitudinal direction with respect to the second packaging unit.

The invention relates to the technical field of numerical control cutting, in particular to a numerical control cutting method, system and equipment for producing packaging boxes and a medium. The method comprises the following steps: firstly, reading a structure and a board design file of a packaging box, generating an initial cutting path, and then identifying position information and angle information of a blank to obtain deviation data; the initial cutting path is automatically corrected according to the deviation data, a corrected cutting path is obtained, meanwhile, the model of a cutting tool is determined according to parameters of the packaging box blank, and finally, the packaging box blank is cut through a target cutting tool according to the corrected cutting path. The problem of cutting precision caused by blank placement position and angle deviation in the prior art is effectively solved by detecting the position and posture of the blank and correcting the cutting path in the early stage; and meanwhile, the optimal cutter is automatically selected according to the blank parameters, so that the manual setting experience and randomness are reduced, and the cutting quality and the product applicability are improved.

The utility model discloses a packing box stacking device for dairy product production, which relates to the technical field of dairy product production, and is characterized in that a linkage mechanism comprises a first motor and a second motor, the mounting ends of the first motor and the second motor are connected with a mounting seat, the output end of the first motor is connected with a first screw rod, and the output end of the second motor is connected with a second screw rod; the outer surface of the first screw rod is in threaded connection with a first threaded seat, and the output end of the second motor is connected with a second screw rod, so that the first motor and the second motor can be controlled to drive the first screw rod and the second screw rod to rotate, drive the first threaded seat and the second threaded seat to move, drive a first gear to rotate and drive a protection plate to rotate; when the clamping mechanism clamps the packaging box to move, the lower portion of the packaging box is protected by the protection plate all the time, and therefore the problems that due to the accuracy change of the force sensor, the clamping mechanism clamps the packaging box too loosely, the packaging box falls off from the air, dairy products contained in the packaging box are damaged, and large economic losses are caused are solved.

The invention provides a new material packaging box quality detection device, and relates to the technical field of packaging box detection.The new material packaging box quality detection device comprises a workbench, a detection shell is fixedly installed in the left half area of the upper portion of the workbench through a supporting block, and a spectrograph is embedded in the right side of the bottom end face of the detection shell; when the detection area provided with the packaging box non-standard sample moves to the position of the spectrograph, the proximity switch also senses the matched sensing block, so that the control flashing lamp and the off-post judgment timing module are started, if a worker leaves a post, the off-post judgment timing module cannot be closed, and when a timing value is reached, the microcontroller controls the audible and visual alarm to be started, so that the non-standard sample of the packaging box is detected. The method and the system can be used to attract the attention of surrounding personnel and off-post workers, ensure that the spectrometer fault can be found and processed in time, and solve the problems that the current spectrometer lacks an effective fault detection mechanism, the workers cannot perceive the fault at the first time, the off-post condition of the workers is not considered, and the spectrometer fault is difficult to find and process in time during off-post.

The invention discloses a packaging box folding path planning method based on an intelligent optimization algorithm, and the method comprises the steps: collecting the unfolding state data and folding target state data of a packaging box, building a mathematical mapping model between an unfolding state and a folding target state through feature point marks, determining a state transition constraint condition in a folding process, and carrying out the folding of the packaging box. On the basis of the model, an optimization function with the shortest folding path length, the minimum number of structural interference times and the optimal action sequence as targets is constructed; the optimization function is solved through an intelligent optimization algorithm, an optimal folding path is iteratively generated, simulation analysis is conducted on the path, structural interference possibly existing in the folding process is recognized and corrected, the corrected path is imported into automatic execution equipment, and automatic folding of the packaging box is completed through driving equipment; according to the method, the problems of insufficient path planning precision and low automation degree in the prior art are effectively solved, and the intelligence and production efficiency of packaging box folding operation are improved.

The utility model provides a reusable dinner plate packaging box which comprises a bottom plate, the left side of the bottom plate is connected with a first folding part, and the right side of the bottom plate is connected with a second folding part. The second folding part comprises a right vertical plate rotationally connected with the bottom plate, a right panel rotationally connected with the right vertical plate, a right supporting plate rotationally connected with the right panel and a right connecting plate rotationally connected with the right supporting plate, a right inserting part is arranged at the tail end of the right connecting plate, and a first inserting opening allowing the right inserting part to be inserted is formed in the right vertical plate; the bottom plate is provided with a second insertion opening allowing the right insertion part to be inserted therein, the right supporting plate is provided with a first containing window, and the first folding part is provided with a second containing window. When the right inserting part is inserted into the first inserting opening, the second folding part is bent and rolled up towards the bottom plate so that the right vertical plate, the right panel, the right supporting plate and the right connecting plate can form a quadrilateral structure, and the first containing window and the second containing window are correspondingly arranged so that the right portion and the left portion of the dinner plate can be inserted into the first containing window and the second containing window respectively; when the right inserting part is inserted into the second inserting opening, the right vertical plate is flush with the bottom plate, so that the surface of the right supporting plate faces upwards, and then the dinner plate can be vertically placed in the first containing window.