59results about How to "Limit height" patented technology

The application discloses a chip scale packaging method for a light-emitting device. The scale packaging method includes steps: at least a flip light-emitting device is arranged on a conversion base film with equal intervals, a main light-outlet surface of the flip light-emitting device is opposite to the conversion base film, dams are formed between the flip light-emitting devices and/or around the flip light-emitting devices on the conversion base film, packaging glue is respectively coated on the flip light-emitting devices and the conversion film, the dams are removed when the packaging glue is cured to be non-liquid, the packaging glue is cut after the packaging glue is completely cured, the conversion base film is removed, and the chip scale packaging structure is obtained after molding. The invention also discloses a chip scale packaging structure for the light-emitting device. According to the chip scale packaging method and the structure for the light-emitting device, packaging process steps of the chip are greatly simplified, a submount of the chip is saved, the cost is lowered, and the work efficiency of users can be more conveniently improved.

The invention discloses a centrifugal fan impeller, which comprises a front ring and a back ring, wherein a plurality of blades are fixedly arranged between the front ring and the back ring. The centrifugal fan impeller is characterized in that the outlet ends of the blades form a wave-shaped sawtooth type by a plurality of sawteeth. The outlet ends (tail edges) of the blades are provided with structures in the wave-shaped sawtooth type, and the wake vortex shedding positions of the tail edges of the blades are changed, so the distance between the vortex centers is increased, the disturbance of the shedding vortex on the wake flowing is inhabited, and the pneumatic noise caused by the wake vortex and the unsteady pressure fluctuation of the blade surfaces is further reduced. The height and the width of the sawteeth are limited, the noise is further reduced, and the influence of the sawteeth on the pressure and air quantity reduction of a fan can also be reduced.

The invention provides a method for recycling, classifying and utilization of construction solid waste. The method includes the following steps that 1, a construction solid waste collection device collects construction solid waste, and then the construction solid waste is classified, screened, recycled and crushed; 2, a metal and non-metal screening device screens metal garbage and non-metal garbage, screening of wood garbage and solid concrete is manually performed, a wood crusher is used for crushing wood garbage to serve as other building auxiliary materials, and the selected solid concreteis then crushed by a crusher to obtain paving subgrade materials; 3, the paving subgrade materials are classified and screened through screening devices used for different sizes of solid concrete, and A-particle-size solid concrete and B-particle-size solid concrete are screened out for standby application; 4, the paving subgrade materials are prepared; 5, paving, repeated compaction and acceptance are performed in sequence. The components of the obtained paving subgrade materials are simple, the construction solid waste is used for recycling, crushing and reuse, the processing efficiency ishigh, the processing cost is low, the comprehensive utilization rate is high and the method is worth popularizing.

The invention provides a cone snail tail removing device and belongs to the field of food machinery. The cone snail tail removing device is composed of a feeding hopper, a controller, a conveying motor, a rack, a sweeping motor, a transmission box, a collection box, sweeping rollers, a lateral base plate, a cutter plate, an air cylinder, a rotary motor, limiting mechanisms, movement guide rods, lateral baffle plates I, height limiting mechanisms, height limiting plates, lateral baffle plates II, lug bosses, a conveyor belt, a sliding column, a push frame, a cutter body, a hinging column, sliding grooves I, groove bodies II, a roller base, sliding grooves III, guide plates, a rotary shaft, roller bases II and bottom frames, wherein the feeding hopper is arranged at the upper end of the rightmost side of the rack; the conveyor belt is arranged at the lower side of the feeding hopper; the lateral baffle plates II are arranged at two sides of the conveyor belt; the lug bosses are distributed on the conveyor belt; the device can be used for efficiently carrying out cone snail tail removing work; reasonable feeding of cone snails is realized through the matching of the conveyor belt and the feeding hopper; the movement guide rods and the sweeping rollers are matched so that posture guide of the cone snails is realized and the height of the cone snails can be effectively limited through the height limiting plates.

A heat-radiation solid package structure includes: a heat radiation sheet with an opening, a reinforcement ring set in the opening having a first surface and a second surface, in which, a first base board of a first chip package piece is contained in the opening and set at the first surface of the ring, a second base board of a second package piece is set on the second surface of the ring, and the first base board is connected with the second base board by multiple solder balls, heat generated by the two pieces is radiated by said radiation sheet, and the reinforcement ring can fix the two pieces for preventing that they will generate warp so as to be benefit to the form of solder balls and guarantee electric transmission of the products. This invention also provides a manufacturing method.

The invention provides a weaving method of a multilayer three-dimensional fabric. By opening and guiding wefts layer by layer, the warp drafting manner and opening and weft guiding rules are changed, the problem that the multilayer fabric reed height and the beating up stoke are excessive large is solved, the maximum distance between the top layer of warps and the bottom layer of warps is shortened during opening, strict limits of layers of the fabric are avoided, the layers of the fabric is increased as several times of the original, wear times between warps and harness wires and between warps are reduced, warp breakage rate is decreased, and operating efficiency of a spinner and fabric quality are improved.

The invention provides a full-seam extraction method for stoping bottom layering of a shallow extremely thick loose coal seam. The full-seam extraction method comprises the following steps: (a) scientifically dividing an extremely thick loose coal seam; (b) arranging roadways and equipment according to a conventional solid filling mining method so as to form a filling mining system; (c) cutting down the coal seam; (d) filling coal goafs; (e) recycling coal of upper inbreaking coal layers; (f) repeating the steps, and circulating in sequence, thereby completing recycling of the coal seam of a whole section. By adopting the full-seam extraction method for stoping bottom layering of the shallow extremely thick loose coal seam, the coal cutting workload is reduced, limits of conventional filling materials are avoided, the synchronous operation of coal cutting and filling is achieved, and the purposes of sustainable development and green mining in the western areas are achieved; the full-seam extraction method is simple to operate, safe and reliable, high in efficiency, and very high in application and popularization values in ecologically fragile areas in the western China.

The invention discloses a busway shell comprising two upper plates, two lower plates and two side plates, wherein the two side plates are located between the upper plates and the lower plates; a bus laying position is formed between the two side plates; a region formed between each upper plate and each lower plate is a heat radiating region; the two upper plates are provided with upper convection holes; the lower plates are provided with lower convection holes; the upper convection holes are located above the heat radiating regions; and the lower convection holes are located below the heat radiating regions. By using the busway shell, the heat radiating effect of the busway shell can be improved, the reliability of the busway shell can be improved, and the service life of the busway shell can be prolonged.

The invention relates to the technical field of machinery, and discloses a preposed straw returning machine, which comprises a straw returning machine body, wherein the straw returning machine body comprises a rack; a connecting part is arranged on the rear part of the rack, and comprises two rectangular pipes arranged on the rack; a beam is arranged on the rectangular pipes; the rectangular pipes and the beam form a frame; height regulation lugs are further arranged on the frame; a hydraulic cylinder is arranged below the lugs. The preposed straw returning machine further comprises a mounting frame, wherein the mounting frame comprises a piece of first channel steel which has a backward opening and is transversely arranged; first screw holes are formed in the two sides of the upper and lower parts of the first channel steel; fixed plates are further arranged behind the first channel steel; second screw holes are formed in the two ends of the fixed plates; the first screw holes correspond to the second screw holes, and are connected with the second screw holes through screws; a connecting part of the hydraulic cylinder, the hydraulic cylinder and the like are arranged on the first channel steel. The preposed straw returning machine has the advantages of convenience in use and capability of meeting certain production requirements.

The invention discloses a method for cultivating single-cave rice seedlings for mechanical rice transplanting. The age of the single-cave rice seedlings is 35-45 days, the leaf age is 4-7 leaves, and the seedling height is not greater than 250mm. The method comprises the following steps: (1) selecting high-quality seeds and preparing cave discs, wherein the mouth of each bowl on the cave discs is 14-18mm in length and 14-18mm in width, the bottom of each bowl is 11-15mm in length and 11-15mm in width, and the depth of each bowl is 22-28mm; (2) filling cultivation soil inside the bowls of the cave discs, wherein the cultivation soil inside each bowl accounts for 2/3 of the volume of each bowl; (3) planting seeds in the cave discs, and covering cultivation soil of 3-5mm in thickness into the cave disc bowls subjected to seeding, wherein the number of seeds in each bowl is 1-4; (4) placing the cave discs subjected to seeding on a seedbed, and performing seedling management in a dry nursery seedling management mode. By adopting the method, compact winding of rice seedling root systems is achieved in a single-cave low-density seedling manner, the height of rice seedlings is limited, the requirements of mechanical rice transplanting of bowl-shaped blanket-shaped rice seedlings are met, and the yield increase advantages can be brought into play.

The invention discloses an automatic lighter gas tank feeding device, which comprises a first spacing sliding chute, a bottom tank and a support plate. The first spacing sliding chute is formed in thetop part of the bottom tank; a movable tray is arranged on a surface of the first spacing sliding chute; a conveyor belt is arranged on the top part of the bottom tank on the inner side of the firstspacing sliding chute; support columns are arranged on the top part of the bottom tank at two sides of the first spacing sliding chute; the support plate is arranged on the top parts of the support columns; an air charging pump is arranged on the top part of the support plate; anti-explosion hose pipes are arranged on the bottom part of the support plate; an installation plate is arranged on the tail ends of the anti-explosion hose pipes; electromagnetic nozzles are arranged on the bottom part of the installation plate; a control electricity box is arranged in the bottom tank; and a servo motor is arranged in the bottom tank on one side of the control electricity box. According to the automatic lighter gas tank feeding device provided by the invention, through arranging a series of structures, multiple lighter gas tanks can be fed simultaneously by the device during a feeding process, so that the production efficiency and the feeding accuracy are improved, and the device is convenientto use.

The invention relates to the field of a raw biomass material conveying device, and in particular relates to a horizontal anti-blocking conveying structure of raw biomass materials, which can effectively maintain the continuous transmission of the raw biomass materials at a bin outlet so as to ensure the normal conveying work of the raw biomass materials in a bin. The horizontal anti-blocking conveying structure of the raw biomass materials comprises the bin, a trough and a horizontal conveying device of the raw biomass materials, wherein a fixed outlet is formed at one end of the bottom of the bin; the trough is located at the bottom of the bin and passes through the fixed outlet; the horizontal conveying device comprises a spiral shaft; the spiral shaft passes through the trough along a transverse direction, and one end part of the spiral shaft is connected with a conveying driving device; and the spiral shaft is provided with a spiral blade. The horizontal anti-blocking conveying structure is characterized in that an anti-blocking device is arranged on the trough, is located at the fixed outlet of the bin and is arranged above the horizontal conveying device.

The invention relates to the technical field of embroidery machines, and discloses an embroidery machine and an embroidery machine cloth fixing device. The embroidery machine cloth fixing device comprises a fixing groove arranged in a fixed frame and extending along the length direction of the fixed frame, a pressing plate arranged on the fixed frame and a driving mechanism for driving the pressing plate to make the pressing plate press the fixed groove. The driving mechanism is used to drive the pressing plate to rotate or move up and down in order to realize the opening and closing of the pressing plate, and the edge of the cloth is pressed between the fixing groove and the pressing plate when the pressing plate is closed, so troubles brought by fixation of the cloth through using a lotof cloth clips by embroidery workers' hands are reduced, and the labor intensity is reduced.

The invention provides an art knife which comprises a protective shell, a blade and a sliding block, the sliding block is arranged in the protective shell in a sliding mode, the blade is arranged on the sliding block, a liftable gear shaft is arranged on the sliding block, the gear shaft can drive the sliding block to drive the blade to slide, a gear is arranged on the gear shaft, and a rack is arranged on the protective shell. The gear is limited above the sliding block and meshed with the rack, a first limiting structure and a second limiting structure are arranged on the gear shaft, the first limiting structure is used for being in contact with the gear and circumferentially limiting the gear, and the second limiting structure is used for being in contact with the sliding block and enabling the sliding block to circumferentially limit the gear shaft; after the gear shaft ascends, the first limiting structure and the second limiting structure can make contact with the gear and the sliding block correspondingly at the same time. And after the gear shaft descends, the first limiting structure can be separated from the gear, so that the gear can rotate around the gear shaft. According to the art knife, the length of the knife body extending out of the protective shell can be steplessly adjusted, the adjusting process is silent, and operation is very convenient.

The invention belongs to the field of mixing devices, and especially relates to a high speed mixer. The high speed mixer is characterized in that the top of a tank body is provided with a tank cover, an observing window is arranged at one side of the tank body, a first discharging opening is arranged at one side of the bottom of the tank body, a second discharging opening is arranged at the other side of the bottom of the tank body, the quantity of feeding hoppers is two or above, the feeding hopers are fixed above the tank cover, a fixed rack is fixed on the upper portion of the tank body, a premix hopper is arranged on the fixed rack, an anti-wear pad is arranged between the premix hopper and the fixed rack, the bottom of the premix hopper is connected with a conveying tube, a first rotating wheel is fixed on the external of the conveying tube, a first motor is fixed on the upper portion of the tank body and is connected with a second rotating wheel, the second rotating wheel and the first rotating wheel are driven through a belt, a second motor is fixed on the bottom of the tank body, and is connected with stirring vanes in the tank body, and the stirring vanes are positioned below the conveying tube.

The invention relates to a mechanism for flattening the surface of a door body during refrigeration of a refrigerator. An upper door strip is arranged at the upper end of a door shell, and a lower door strip is arranged at the lower end of the door shell. An inner container body is clamped in the door shell, and the upper door strip is fixedly connected with the inner container body and the lowerdoor strip is fixedly connected with the inner container body by buckles. The end, far away from the inner container body, of the upper door strip is clamped in the door shell, and the end, far away from the inner container body, of the lower door strip is clamped in the door shell. A plurality of first reinforcing grooves and second reinforcing grooves are formed in one side of the inner container body, and bending parts are arranged on the sides, close to the inner container body, of the two ends of the door shell. As the first reinforcing grooves and the second reinforcing grooves are formed in one side of the inner container body, the phenomena that the width of the door body becomes smaller and the door body protrudes outwards due to a foaming material contracting when cooled can be effectively limited by using the first reinforcing grooves and the second reinforcing grooves. In addition, the bending parts are arranged on the sides, close to the inner container body, of the two ends of the door shell, so that the door body can have sufficient strength to limit the phenomena that the height of the door body becomes smaller and the door body protrudes outwards due to the foamingmaterial contacting when cooled.

The invention discloses a continuous automatic shelling device. The device comprises a moving frame and a feeding hopper; a cleaning cylinder is arranged in the moving frame, the feeding hopper communicates with the cleaning cylinder, a screw propeller and washing brushing rollers are arranged in the cleaning cylinder, and cleaning brushes are arranged on the washing brushing rollers; liquid discharging holes are arranged on the rotating drum of the cleaning cylinder; the discharging end of the cleaning cylinder is in butt joint with a discharging channel, the discharging channel is connectedto a loading push block, the lower end of the loading push block is connected to a loading cylinder, and the end surface along the inclined direction is provided with a lower pressing plate; and an upper pressing plate, a lower pressing mechanism and a shelling assembly are arranged above the lower pressing plate, and concave recesses are formed on the upper pressure plate and the lower pressing plate. The invention aims to provide the continuous automatic shelling device against the above problems, and the device cleans freshwater mussel shells before the shelling, realizes full-automatic single-mussel conveying, carries out shelling on freshwater mussels by adopting a rotary drilling mode, and effectively avoids the problem that the mussels cannot be clamped due to different size specifications and easy slipping.