37 results about "Open structure" patented technology

The invention belongs to the technical field of mold production, and discloses a simulation-based large-opening structure field shape maintenance scheme forward design method, which comprises the following steps of: 1, simplifying a large-opening structure and establishing a high-fidelity finite element simulation model; deformation of the large-opening structure under the actual working condition is simulated, the elastic deformation degree of the large-opening structure is calculated and evaluated based on the surface shape variance, and a shape maintaining tool supporting point position is selected according to the elastic deformation degree; 2, designing and optimizing a shape-preserving tool model by considering a deformation factor of a large-opening structure and a shape-preserving tool volume factor according to a shape-preserving tool supporting point position; 3, installing the shape-preserving tool model into the high-fidelity finite element simulation model, carrying out large-opening structure deformation simulation analysis in a shape-preserving state, and calculating a surface shape variance in the shape-preserving state; 4, selecting a force control shaft at the tail end of the supporting point position of the shape maintaining tool, designing simulation to obtain the contact force of the force control shaft and the surface shape variance of the supporting point position, and establishing a mathematical model between the contact force of the force control shaft and the surface shape variance of the supporting point position; 5, in the field shape maintaining process, the laser tracker is used for measuring the position error of the shape maintaining tool supporting point position, the surface shape variance of the shape maintaining tool supporting point position is evaluated, and the contact force is calculated based on a mathematical model between the force control shaft contact force and the surface shape variance of the supporting point position.

Provided is a method and system for producing kneaded rubber with which it is possible to efficiently produce a final kneaded rubber of the desired quality for each kneaded material specification by using an open structure roll kneader. For each kneaded material R specification, the state of the kneaded material R circulating through a circulation path is detected by a sensor unit 9, and the detected data are input to a computation device 10 together with the kneading conditions when the detected data were detected. In the computation device 10, the input detected data are distinguished into normal data showing a good kneading state and non-normal data showing a non-good kneading state based on preset criteria. The kneading conditions capable of realizing the normal data are calculated by the computation device 10 by machine-learning using the kneading conditions input to the computation device 10 together with the normal data and the kneading conditions input to the computation device 10 together with the non-normal data as training data, and kneading is performed by applying the calculated kneading conditions to the next kneaded material R of the same specification to be kneaded.

The accounting bill arranging device comprises two elastic plastic rods and a plurality of accounting bill arranging partition plates, each accounting bill arranging partition plate comprises a partition plate, and a second square pipe is installed on each of the two sides of each partition plate. The distance between the accounting bill sorting partition plates can be adjusted according to the actual number of files, so that when accounting bill sorting is carried out, if the number of files of a single type is small, the two partition plates can be matched to clamp stacked accounting bills, the bottom of a compartment formed by every two adjacent partition plates is of an open structure and is not closed, and therefore the number of the files of the single type is small. Therefore, the situation that the file falls into the bottom of the compartment and cannot be conveniently taken out is avoided.

This utility model provides an industrial internet network operation and maintenance training platform, including a training platform, a network module, an intelligent application module, and a network management terminal. The training platform includes an open vertical platform and a horizontal platform. The network module is located on the vertical platform and is used to realize network data communication between the intelligent sensing module and the network management terminal. It includes a security network, a backbone network, and a production network arranged sequentially from top to bottom. The intelligent application module is located on the horizontal platform and is used to build various industrial internet application scenarios and collect data. The network management terminal is located on one side of the training platform and is used for network debugging and network management. The network module, intelligent application module, and network management terminal are interconnected to realize practical training in various industrial internet application scenarios. This utility model adopts an open structure with a clear network structure hierarchy, which facilitates practical training; it can also build various industrial internet application scenarios, providing rich teaching application scenarios.

To provide a manufacturing method and manufacturing system for a kneaded rubber, by using an open-structured roll kneader to efficiently manufacture final kneaded rubber with a desired quality for each kneaded product specification.SOLUTION: There is provided a manufacturing method of a kneaded rubber, comprising: detecting a condition of a kneaded material R circulating through the circulation path using a sensor unit 9 for each specification of the kneaded material R; inputting detected data to a calculation device 10 along with kneading conditions at a time when the data is detected; classifying the input detected data into normal data indicating a good kneading state and abnormal data indicating an unsatisfactory kneading state based on a preset criteria in the calculation device 10; calculating kneading conditions that can realize normal data by the calculation device 10 by performing machine learning using the kneading conditions input to the calculation device 10 together with normal data and the kneading conditions input to the calculation device 10 together with abnormal data as learning data; and performing kneading by applying these calculated kneading conditions to a next kneaded material R of same specifications.SELECTED DRAWING: Figure 2

The utility model provides a folder for classifying test papers, and relates to the technical field of storage equipment. A handle assembly is installed on the outer end face of the shell assembly, a partition assembly is installed in the shell assembly in a hinged mode, a bearing assembly is installed on the partition assembly in a sliding mode, the shell assembly is firstly reinforced, collision and extrusion damage of the outside to the shell assembly are avoided, and the handle assembly is installed at the closed position of the shell assembly; the handle assembly assists in facilitating carrying of the device, the partition assembly is hinged to the interior of the shell assembly, the bearing assembly on the partition assembly is arranged to be in sliding installation, the whole bearing assembly is arranged to be of a directly-opened structure, test paper can be conveniently put in, meanwhile, the bearing assembly is identified and classified through the identification assembly, and the practicability is high. The problems that an internal classification part of an existing folder is thin, paper is difficult to put in when the folder is directly used, and internal test paper is damaged due to falling or collision of the folder are solved.

The invention discloses a selective laser melting forming method for a part with an opening structure. The selective laser melting forming method comprises the following steps that (1) a three-dimensional model of the part with the opening structure is constructed; 2) determining the forming direction of the part according to the structure of the part; (3) the multiple parts are sequentially arranged in a staggered mode through the gaps in the centers of the part bodies, and the opening ends of every two parts arranged in a staggered mode are oppositely arranged; (4) a shape control support is designed, the open ends of all the parts are independently connected through solid pieces to form a closed structure, and a printing model is obtained; and 5) slicing and layering the printing model, and importing slicing information into equipment for printing. A reasonable forming mode is designed for the opening structure part, so that the opening structure part can be integrally and smoothly formed through the selective laser melting forming process, the part deformation is small, the shape correction procedure is not needed, the manufacturing period is shortened, the production cost is reduced, and the production efficiency is improved.

The utility model discloses a slide rack and chromosome imaging scanner slide bin structure, the slide rack comprises a rack body which is of a through opening structure to form an upper opening and a lower opening which are opposite to each other, four side surfaces of the rack body are all provided with through openings to form side openings, two opposite side openings are fixedly connected with support rods, and the support rods are fixedly connected with the slide rack. The two supporting rods form the two opposite walls of the lower opening and are located in the projection plane of the upper opening, the inner walls of the two sides of the frame body are each provided with at least one clamping groove, the number of the clamping grooves in the two sides is equal, the clamping grooves are opposite in a one-to-one mode, and lifting handle holes are formed in the other two sides of the frame body in a penetrating mode. The outer walls of the other two sides of the frame body are each provided with a transverse limiting groove communicating with the corresponding handle hole, and the two transverse limiting grooves communicate with the outer wall of the same side of the frame body or communicate with the outer walls of the two opposite sides of the frame body. The slide rack disclosed by the utility model can be used for the preorder slide preparation and the subsequent oil control operation of the slide in a compatible manner.

The invention provides a three-dimensional model generation method and device, electronic equipment and a product, and the method comprises the steps: carrying out the folding simulation based on a two-dimensional graph and a folding reference of the two-dimensional graph, and obtaining a folded three-dimensional open structure; wherein the folding reference comprises a folding angle and a folding mark; the closing type for closing the three-dimensional open structure is determined, and the closing type comprises any one of polygon closing, curved surface closing and polygon and curved surface mixed closing; and based on the closing type of the three-dimensional open structure, performing closing processing on the three-dimensional development structure to obtain a three-dimensional model after the two-dimensional graph is folded according to the folding reference. According to the technical scheme, the open structure which is not closed after being turned over can be automatically closed, the closed three-dimensional model obtained after the two-dimensional graph is turned over according to the turning reference is obtained, the visualization effect of the three-dimensional structure obtained after the two-dimensional graph is turned over is improved, and the experience degree of a user for observing the turning effect is improved.

The present invention discloses a method and device for forming an open structure part, which relates to the field of additive manufacturing technology, in order to solve the problem that the forming of open structure parts is difficult and the forming accuracy cannot be guaranteed. A method for forming an open structure part includes: obtaining a three-dimensional model of the part; determining the forming direction of the part according to the three-dimensional model; copying the part in the three-dimensional model to obtain multiple parts, and arranging the multiple parts along the opening direction; constructing a first connecting structure connecting the open end of the part and its adjacent parts in the three-dimensional model; at the same time, constructing a second connecting structure connecting the two open ends of the terminal part in the three-dimensional model to obtain a processing model of the part; according to the processing model and the forming direction, forming and printing the part; processing the print to obtain multiple parts. The method for forming an open structure part provided by the present invention is used for the forming of an open structure part, and the forming method is simple and the forming accuracy is high.

The present invention discloses a gating system for preventing shrinkage cavities in a high-grade vermicular graphite cast iron cylinder head. The gating system is of a closed-open structure and includes a pouring cup, a sprue, a sub-sprue, a runner, a sub-runner, and an ingate. The left end of the runner is connected to the lower end of the sprue, and the right end is connected to the upper end of the sub-sprue. The lower end of the sub-sprue is connected to the right end of the sub-runner. A plurality of ingates are provided on the sub-runner. The sectional area ratio relationship of each unit of the gating system is: F 直 > F 横1 > F 阻 < F 分横 ≤ F 总内 , F 直 : F 横1 : F 阻 : F 分横 : F 总内 = 1.3 - 1.5: 1.2 - 1.4: 1.0: 1.3 - 2: 1.5 - 3. The present invention has the advantages of reasonable structure, good feeding effect, low casting rejection rate, etc.

The utility model discloses a water quality monitoring sampling box, which relates to the technical field of water quality sampling boxes and comprises a plurality of sampling box components and a locking component, the sampling box components consist of sampling boxes and hasps, and the plurality of sampling box components are stacked and transferred through a transfer component; the transfer assembly comprises a transfer box frame and supporting cross rods, the front end of the transfer box frame is of an opening structure, and the supporting cross rods are symmetrically fixed to the two sides of the inner wall of the transfer box frame; and butt joint grooves are symmetrically formed in the two sides of a box body of the sampling box, and the sampling box is horizontally connected to the outer side of the supporting transverse rod in a sleeving mode through the butt joint grooves and used for achieving horizontal placement of the sampling box in the transfer box frame. According to the sampling box disclosed by the utility model, a plurality of sampling box assemblies can be conveniently transferred by arranging the transferring assembly, the sampling box assemblies and the transferring assembly can be conveniently assembled and disassembled by virtue of the locking assembly, and the transferring convenience of the sampling box can be further improved by virtue of the matching of a plurality of parts.

The present invention provides a special auxiliary reading device for a large-scale length measuring machine, comprising: a fixed base, a damping rotating shaft and a plane mirror, wherein the damping rotating shaft is installed at the bottom end of the plane mirror; wherein: the fixed base is of a U-shaped open structure and is provided with a set of relatively positioned round holes and a set of relatively positioned arc grooves, the plane mirror is located inside the fixed base, wherein the bottom end of the plane mirror is fixed on the round hole of the fixed base through the damping rotating shaft, and the top end of the plane mirror is installed on the arc groove of the fixed base and can move along the trajectory of the arc groove. At the same time, a JD21 type projection two-meter length measuring machine adopting the above special auxiliary reading device is provided. Through the reflection principle of the plane mirror, the present invention enables the reading device that originally needed to be perpendicular to the window to now read the value in the horizontal position, improving the work efficiency and accuracy of inspection.

The resume sorting device comprises a sorting box, a delivery opening is formed in the center of the front side of the sorting box, a moving box is arranged in the sorting box, a lifting assembly used for driving the moving box to ascend and descend is arranged in the sorting box, and the interior of the moving box is divided into a plurality of cavities; the positions, corresponding to the cavities, of the front side and the rear side of the moving box are of open structures, a blocking door is arranged at the position, corresponding to the cavities, of the rear side of the moving box, fixing plates are fixedly connected to the left side and the right side of the sorting box, a plurality of supporting frames are evenly and fixedly connected to the fixing plates, and classification boxes are detachably arranged in the supporting frames. One side of the classification box is of an open structure, and a containing box is arranged in the classification box. According to the invention, preliminary sorting is carried out according to different positions during delivery, then the resumes of all the positions are further sorted according to whether the requirements of the positions are qualified or not, and the resumes are stored in the corresponding classification boxes, so that subsequent interview use is facilitated.

The utility model belongs to the technical field of data acquisition, and particularly relates to a storage device of a portable data acquisition instrument, which aims at solving the existing problems and adopts the following scheme that the storage device comprises a storage box, the top of the storage box is of an opening structure, and a first rotating shaft is rotationally mounted on one side of the top of the storage box; a cover plate is fixedly mounted on the first rotating shaft, sliding grooves are formed in the inner walls of the two sides of the storage box, sliding blocks are slidably mounted in the sliding grooves, a plurality of storage boxes are mounted in the storage box, one side of each storage box is fixedly connected with one end of the corresponding sliding block, the top of each storage box is of an opening structure, and moving grooves are formed in the two sides of each storage box. A plurality of storage boxes are arranged in the storage box, each storage box is internally provided with a data acquisition instrument, all the storage boxes can be displayed only by opening the cover plate and pulling the storage boxes upwards, the time for searching the data acquisition instruments is greatly shortened, and the working efficiency is improved.

The utility model discloses an electronic information board mounting seat, which relates to the field of mounting bases, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a limit sleeve which protrudes upwards, the limit sleeve is of a hollow structure, the top end of the hollow part of the limit sleeve is of an open structure, a support is inserted into the inner wall of the limit sleeve, and the support is connected with the bottom of the bottom plate. And the support inserted into the inner wall of the limiting sleeve is fixedly connected with the limiting sleeve through a fixing assembly, and a first protection seat and a second protection seat are arranged outside the bottom plate and are symmetrically arranged. The base, the limiting sleeve and the fixing assembly are arranged, the base and the support are divided into two parts, the base and the support can be conveniently fixed, disassembled and replaced, the installation process is more convenient, the base, the fixing assembly and the limiting sleeve can be effectively protected by arranging the first protection base, the second protection base and the locking assembly, the corrosion speed is reduced, and the service life of the device is prolonged. The service life is prolonged.

The utility model discloses a simple key chain data line assembly which comprises a wire rod and a part used for fixing the wire rod, two ends of the wire rod are respectively connected with a connector, the part used for fixing the wire rod is a chain seat of an integrated structure, and an isolation wall is arranged in the middle of the chain seat. The two sides of the isolation wall are each provided with a buckling groove used for buckling the connector. The upper end, the lower end and the outer side of each buckling groove are each of an opening structure, and the two connectors are buckled into the two buckling grooves respectively so that the whole data line can be closed to form a circle. According to the utility model, the buckle seat with an integrated structure is used as a part for fixing the data line, and the buckle groove is arranged in the buckle seat and is used for buckling the joint of the data line, so that the data line forms a state similar to a key ring, and the data line is very convenient to take out and buckle in. And the whole buckle seat is simple in structure, is provided with only one part, is convenient to manufacture, is low in cost, is not easy to damage, and greatly facilitates the use of a user.

The invention relates to the technical field of water-bearing stratum grouting, and discloses a loose water-bearing stratum grouting simulation device and a test method.The grouting simulation device comprises a test tank, the test tank is made of a transparent or semitransparent material, the top of the test tank is of an opening structure, and a plurality of pressure sensors and strain gauges are fixedly installed on the inner wall of the test tank; the test tank is provided with an adjusting mechanism, the camera is matched with the adjusting mechanism for use, the bottom wall of the control box is fixedly connected to the top of the test tank, the bottom of the control box is fixedly connected with a threaded pipe, and a supporting pipe is arranged in the threaded pipe; a plurality of grouting nozzles are fixedly installed on the supporting pipe, external threads are arranged on the outer wall of the supporting pipe and are in threaded connection with the threaded pipe, an air pump is fixedly installed in the control box, and a slurry storage tank is installed on the side wall of the air pump. Medium pressure and deformation data at different depths and different angles can be collected, and limitation of single data in the prior art is avoided.

The invention relates to a grid hollowed-out structure ultrasonic phased array detection system and method, and belongs to the technical field of composite material nondestructive testing. The grid hollowed-out structure ultrasonic phased array detection system comprises a rotating platform, a multi-degree-of-freedom scanning manipulator, a graded water immersion coupling system, an ultrasonic phased array detection module, a motion control system and an intelligent data analysis system, and the rotating platform drives a workpiece to rotate; the multi-degree-of-freedom scanning manipulator is used for carrying out axial translation and space attitude adjustment; the grading water immersion coupling system is used for carrying out local water immersion on a workpiece detection area, and the motion control system is used for generating a scanning path according to a workpiece three-dimensional model and geometrical characteristics of grid ribs and optimizing the track and posture of a multi-degree-of-freedom scanning manipulator; the intelligent data analysis system collects scanning data, reconstructs the scanning data into a complete workpiece three-dimensional image, identifies and marks defects, and automatically generates a detection result. Through the local water immersion and ultrasonic phased array technology, the problems of unstable acoustic coupling, serious signal interference, low detection coverage rate and the like can be solved.

The invention relates to the technical field of display card shell machining, in particular to a machining device for a display card shell, which comprises a main body cylinder, a first placing groove is formed in the upper end of the main body cylinder, a centrifugal covering mechanism is arranged in the main body cylinder, and the centrifugal covering mechanism comprises a fixed cylinder rotationally arranged in the first placing groove; the fixing cylinder is of a circular ring cylinder structure, a fixing plate is fixedly connected to the inner side face of the fixing cylinder, a fixing shell is fixedly connected to the upper end of the fixing plate, the upper end of the fixing shell is of an opening structure, a first electric telescopic rod is fixedly connected into the fixing shell, and a second motor is fixedly connected to the telescopic end of the first electric telescopic rod; a cover plate is fixedly connected to the transmission shaft end of the second motor, and a welding mechanism for welding the shell is arranged at the end of the fixing shell. And rotation is carried out during welding, bubbles generated in a welding area during welding can be reduced, and the welding quality is improved.

The present invention relates to the technical field of nondestructive testing of kiwifruit, and provides a nondestructive hardness testing device for a kiwifruit production line based on visual touch and a testing production line. The testing device includes a support frame, a roller, an information collection unit and an information processing unit. The roller is rotatably arranged on the support frame. The roller is a polygon, and each side is an open structure. The opening is provided with a flexible membrane, and the flexible membrane is provided with a plurality of synapses. The information collection unit collects the motion signal of the synapse and transmits it to the information processing unit, and the information processing unit predicts the hardness value of the kiwifruit to be tested. The testing production line includes a testing device and a transmission device. The transmission device transmits the kiwifruit to be tested to the bottom of the testing device, and the movement speed of the transmission device is consistent with the rotation speed of the roller. The testing device and the testing production line of the present invention will not damage the kiwifruit when testing the hardness of the kiwifruit, and have a simple structure and low equipment cost, and can realize fast and repeated testing.

The utility model relates to the technical field of network switches, in particular to a switch convenient to disassemble and assemble, and adopts the technical scheme that the switch comprises a shell, the top of the shell adopts an open structure design, a cover body is movably mounted at the top of the shell, preformed grooves are respectively formed in two sides of the upper end surface of the shell, positioning rods are rotatably mounted in the preformed grooves, and the positioning rods are movably mounted in the preformed grooves. The front end and the rear end of the shell are each of an open structure design, a communication mainboard is movably inserted into the shell, and an installation frame is fixedly installed at the rear end of the shell. The cover body is rotationally installed at the top of the shell through a hinge, a positioning groove is formed in the lower end face of the cover body, and the size of the end, away from the reserved groove, of the positioning rod is matched with that of the positioning groove. The switch has the advantages of being simple in structure, convenient to disassemble and assemble and capable of effectively protecting the network interface from being damaged, and the problems that the network interface is prone to being damaged in the disassembling process of an existing switch and the switch is possibly subjected to secondary damage due to inconvenient disassembly are solved.

The utility model discloses a gateway machine box which comprises a box body, and the upper end of the box body is of an open structure. The gateway machine box further comprises at least one frame and a top plate assembly. The frame is detachably connected with the box body; the top plate assembly is detachably connected with the upper end of the frame, the top plate assembly is detachably connected with the upper end of the frame, the top plate assembly can be detachably connected with the upper end of the box body, and the side wall of the frame is provided with an insertion hole for inserting a network interface card. The frame is used for installing the network interface card. In the subsequent upgrading process, the frames and the network interface cards can be added in sequence. The frame provides protection for the network interface card, and after installation is completed, the network interface card can be prevented from being exposed outside the gateway machine box, so that the possibility that the network interface card is subjected to physical impact is reduced, and the network interface card is prevented from being loosened or damaged.

The present disclosure relates to the technical field of nut processing equipment, and one embodiment of the present disclosure provides a sequencing type discharging mechanism for a nut cold header, which comprises a machine body and an outer frame, the outer frame is fixed to the outer wall of the machine body, a cross frame is fixed to one end of the outer frame, a receiving assembly is arranged on the cross frame, an auxiliary arrangement assembly is arranged inside the cross frame, the receiving assembly comprises a discharging hopper, the discharging hopper is fixed to the outside of the machine body, the lowermost part of the lower end of the discharging hopper is of an open structure, the size of the open structure at the bottom of the discharging hopper is larger than the size of the nut, a driving motor is installed at the bottom of the cross frame, and a rotating block is connected to the output end of the driving motor. Through the above technical scheme, the technical problem that the discharged nuts are distributed in disorder after being formed in the prior art and need to be arranged by manpower, which is not conducive to subsequent processing, is solved.

The utility model relates to an auxiliary device for binding materials, which comprises a placing box, three sides of the placing box are fixedly provided with enclosures, the three enclosures are respectively provided with a clamping mechanism, the other side of the placing box is of an open structure, and the bottom of one side, far away from the open side, of the placing box is provided with two height adjusting bases; the clamping mechanism comprises a clamping plate, a movable opening is formed in the middle of the fence, guide sliding grooves are vertically formed in the side edges, on the two sides of the movable opening, of the fence, sliding blocks are arranged at the two ends of the clamping plate, and the clamping plate is slidably connected to the movable opening through the sliding blocks; when the bookbinding device is used, bookbinding materials are placed in the containing box, the handle is pulled, the three clamping plates are pressed on the materials, one side edge of each material extends out of the containing box and is placed at the bookbinding position of the bookbinding machine, the rubber base of the containing box is adjusted to enable one side of the containing box to be placed on the bookbinding machine and then keep horizontal, and then the bookbinding machine is opened to punch holes and bind the materials. The materials bound by the device are smooth, and the binding efficiency is improved.

The invention discloses a node directional neighbor discovery device and method for emergency rescue application, and belongs to the field of mine emergency rescue, and the device comprises a node carrying frame, a stepping motor, a connecting flange and a radiation isolation plate; the radiation isolation plate is of a V-shaped structure, the upper V-shaped end face is fixedly connected with the connecting flange, and the lower V-shaped end face is of an open structure. The node is provided with a rod-shaped omnidirectional antenna and extends into the internal space of the radiation isolation plate through the open structure of the lower V-shaped end surface of the radiation isolation plate; the motor drives the radiation isolation plate to rotate to realize formation and rotation of a directional wave beam; the method depends on the device and is operated inside the node, and directional discovery of the neighbor node is completed by aligning and rotating beams and receiving and sending data packets in different time intervals. The device and the method provided by the invention are simple and strong in expandability, and can improve the efficiency of discovering neighbor nodes by residual nodes after disasters and constructing an emergency communication network, thereby providing help for emergency rescue.

The present application relates to a kind of multifunctional prisms, including fitting device and prism part;Fitting device includes mounting portion and limiting portion;Gap is provided between mounting portion and limiting portion for the placement of prism part;Limiting portion is open structure;One end of mounting portion is connected with measurement target object;The other end of mounting portion is provided with cross differentiation line in central position, and the central position of cross differentiation line corresponds with target point of measurement target object;Prism part is arranged in the gap between mounting portion and limiting portion provided.The prism part is connected with fitting device plug-in, and the cross differentiation line is adjusted to be centered with prism, so that the prism is accurately centered with target point;It improves work efficiency, and a single person can measure indoor and outdoor ATR, and because of directly measuring target point data, it saves the step of later calculation correction, and reduces the factor of human error.

The utility model relates to the field of data storage devices, in particular to a drying device for shaping underpants. The technical problems that an existing drying device for shaping the underpants is generally of an open structure, drying adjustment is not easy to carry out according to the actual drying condition of the underpants, and heat loss and waste are easily caused are solved. Comprising a workbench, a placing assembly, a rolling assembly, a drying assembly, a sealing assembly and foot columns, the underpants are placed in a sealed environment to be shaped and dried, a control module with a temperature displayer is arranged, the temperature can be properly adjusted according to the actual drying situation and different drying requirements, energy is saved, and the practicability is high. And shaping and drying are faster and more efficient, the rolling assembly can conduct rolling shaping on the interior, the drying assembly can dissipate heat from the lower portion to dry the underpants, the sealing assembly can enable the whole shaping and drying process to be conducted in a sealed mode, and heat loss is not likely to be caused.

The present invention belongs to the technical field of computers and provides a heat dissipation and cooling device for a computer chassis, which includes a box body. Both sides of the box body are of an open structure and are provided with glass side plates. A cable connection groove is opened on one side of the box body. A net plate and a back plate which are vertically distributed are fixedly installed in the box body to solve the technical problem of the decrease in heat dissipation capacity caused by the blockage of the air inlet holes and the accumulation of dust in the chassis after long-term use. When the present invention is in use, air flows upward to contact components such as the motherboard for heat dissipation and cooling and enters the dust removal cavity. The air in the dust removal cavity flows towards the dust discharge groove side. Through the settings of the first guide plate and the second guide plate, the flow of air is guided, so that the flow direction of the air entering the dust removal cavity upward forms an acute angle with the flow direction of the air in the dust removal cavity, thereby further accelerating the flow rate of the air. The present invention can be widely applied to the heat dissipation scenarios of the equipment in the box body.

The invention belongs to the technical field of aviation digital assembly, and particularly relates to a lightweight design method of a large-opening structure shape-preserving tool, which comprises the following steps of: 1, acquiring a load and a boundary condition of a large-opening structure in a hoisting and racking process, and according to the load and the boundary condition of the shape-preserving tool in practical application, determining a shape-preserving model of the large-opening structure; designing a topological optimization grid model of the required shape-preserving tool; 2, determining a design area, a response constraint and a target function according to the lightweight requirement of the shape-preserving tool, and then carrying out iterative calculation to obtain a topological optimization grid model after preliminary optimization; 3, performing model reconstruction on the topological optimization grid model after the preliminary optimization, replacing a continuous solid structure in the preliminary optimization model with a space truss structure, and splitting the optimized structure into basic parts to realize shape-preserving tool assembly modularization; and 4, carrying out finite element statics analysis and modal analysis verification on the assembled shape-preserving tool, judging whether an optimized structure meets design requirements or not, if not, modifying part design and reassembling, and if yes, outputting a result.