30results about How to "Shorten the length of the runner" patented technology

The invention relates to the field of structural design of electric water heater heating pipes, and discloses a heating pipe of an instant heating faucet. The heating pipe comprises a heating pipe body, electrodes and a fixing seat which are coaxial. The heating pipe body comprises an insulating shell, a first heating barrel and a second heating barrel, the first heating barrel is arranged in the insulating shell, the second heating barrel is arranged in the first heating barrel, a first heat preservation layer is arranged between the insulating shell and the first heating barrel, a water passageway is arranged between the first heating barrel and the second heating barrel, the outer wall of the first heating barrel and the inner wall of the second heating barrel are coated with resistive films, an ultraviolet lamp tube coaxial with the second heating barrel is arranged in the second heating barrel, a second heat preservation layer is arranged between the ultraviolet lamp tube and the second heating barrel, and sealing devices are arranged on a water inlet and a water outlet of the heating pipe body. The water heating efficiency is higher, the heating speed is higher, the length of the water passageway is not increased, and the water outflow speed is high. The sterilization function is achieved.

The invention discloses an energy-saving back-filling mechanism. A runner system and an ejection system are designed in one assembly, wherein the runner system is designed in the ejection system; the runner system can be designed on the back of a die core; a runner plate penetrates through the ejection system and is in fit with the die core to form a runner, so that the length of the runner is reduced on the premise of no influence on the ejection mechanism; after the runner system and the ejection system are integrated to be a whole body, the advantages are characterized in that the length of the runner is reduced, the wastes are reduced, the forming period is shortened, the production cost is saved, the production efficiency is improved, and the purposes of saving energy and protecting environment are achieved.

The invention provides a dye liquor circulating system of a yarn dyeing machine with extremely-low bath ratio of 1:2. The dye liquor circulating system mainly comprises a cylinder, a guide plate, a flange central seat, a liquor feeding and discharging pipe, a flange cover, a front plate, a rear plate, a pump supporting seat, a water retaining plate, a sealing plate, a cover plate and the like. The dye liquor circulating system has the advantages that the system tightly fuses with a pump body structure by the aid of ingenious runner arrangement, the size of the circulating system is reduced greatly, and the yarn dyeing machine is allowed to have the ultimate extremely-low bath ratio of 1:2; the runner length of the circulating system is also shortened greatly, and pump energy efficiency is increased effectively.

The invention discloses a horizontal solid-liquid dual-purpose composite insulator former which comprises a mold locking machine frame and injection plasticizing devices, wherein the injecting end of each injection plasticizing device is connected to movable mold plates used for fixing a mold. A sled movable slide rail is horizontally arranged in the mold locking machine frame corresponding to the injection plasticizing device, and one injection plasticizing device is slidely connected with the corresponding sled movable slide rail. The movable mold plates are connected with the mold locking machine frame in a sliding way and can slide along an upper guide rail or a lower guide rail, and the two movable mold plates can move separately or together. The horizontal solid-liquid dual-purpose composite insulator former adopts a horizontal mold locking structure, single / double injection or single / double movable mold(s) can be flexibly selected according to the forming process of a product; and in forming, a core barrel and a product to be formed stay in the center of the mold locking machine frame, and an injection nozzle directly injects glue from the center of the side of a mold, thereby shortening the length of a runner, facilitating air discharge, improving the internal quality of the product and reducing energy loss.

An injection molding die comprises a die body and a base. The die body comprises a male die, a female die and a die core arranged between the male die and the female die, wherein the male die is fixedly connected to the upper side of the base. Four consistent stand columns, a convex groove and connecting holes are formed in the upper portion of the male die, and the stand columns and the convex groove are fixedly connected to the male die. Four consistent fasteners and a convex groove are fixedly formed in the bottom of the female die, and a glue inlet is formed in the top of the female die. The die core is provided with first through holes and second through holes, wherein the first through holes are matched with the stand columns, and the second through holes are matched with the fasteners. The die core is provided with a glue inlet through hole and a concave groove matched with the convex grooves. By means of the provided injection molding die, two products can be manufactured at the same time, the structure is simple, and operation is convenient; and the production efficiency can be improved, the occupied area is reduced, the runner length is reduced, resource waste is reduced,and application prospects are wide.

The invention discloses a low-specific-speed impeller structure and a machining method thereof. The structure comprises an impeller body part and an impeller root part; the impeller body part includes a front cover plate, a blade body part and a back cover plate; the impeller root part includes a hub, a blade root part and a sealing ring part; the middle part of the back cover plate is downwards projected to form a sleeve; the back cover plate coats the back part of the hub through the sleeve; the front cover plate coats the sealing ring part; an annular welding line is formed between the front cover plate and the sealing ring part; and the front cover plate and the sealing ring part are tightly welded through the annular welding line. The machining method comprises the following steps: 1) the impeller body part and the impeller root part are respectively cast; 2) the impeller body part coats the impeller root part from the back end of the impeller root part; and the front cover plate coats the sealing ring part; and 3) the annular welding line between the front cover plate and the sealing ring part is tightly welded. The structure is low in machining difficulty, high in machining precision and better in total quality, improves the machining yield, is high in impeller stability, and can effectively improve the guide efficiency.

The invention discloses a flow box, and belongs to the field of paper-making mechanical equipment. The flow box comprises a cylindrical shell, wherein a pulp inlet and a pulp outlet are formed on the cylindrical shell; a pulp applying device is arranged at the pulp outlet; the pulp inlet is communicated with a pulp distributing device; a roller capable of rotating around the axis thereof is coaxially sleeved inside the cylindrical shell; a clearance is formed between the outer roll surface of the roller and the inner surface of the cylindrical shell. According to the invention, the roller is coaxially sleeved inside the cylindrical shell and the roller can rotate around the axis thereof, so that when the roller rotates at a high speed, under the driving of the pressure difference and the roll surface, pulp flows along with the roll surface in the clearance formed between the roll surface and the cylindrical shell; the flowing speed of the pulp is smaller than the motional speed of the roll surface, so that friction is generated, a turbulent flow is generated in a pulp flow, flocculated fiber clusters in the pulp flow can be dispersed, and thus the evenness of a paper sheet is improved; and the flow box is simple in structure and convenient to manufacture and is applicable to paper-making machines with high, medium and low speeds.

The invention discloses a compact pressure self-compensation total-sea-depth stop valve, and belongs to the relevant technical field of valve bodies. The compact pressure self-compensation total-sea-depth stop valve comprises two stop valve bodies which are oppositely arranged on the same valve body and are of the same structure. Each stop valve body comprises a stop valve screw plug assembly, a valve element assembly, an isolation pressure sheet assembly, a valve sleeve, a stop valve spring and a valve seat. The stop valve bodies are opened in a manner of being hydraulically driven, and therefore remote control can be achieved. Closing of the stop valve bodies is achieved through the force of the stop valve springs and hydraulic force generated by the area difference between the two sidesof the large end of the valve element assembly. The form of ceramic and stainless steel cooperation is adopted in cooperation between the valve element assembly and other parts, friction force in themotion process of the valve element assembly is effectively reduced, and meanwhile the possibility of jamming of the valve element assembly is reduced. The two oppositely-arranged stop valve bodies use the same valve seat in common, and the space utilization rate is increased. According to the compact pressure self-compensation total-sea-depth stop valve, the structure is simplified, the size isreduced, and then the complexity and cost of a buoyancy adjusting system of a submersible are reduced.

The invention relates to a micro-channel heat exchanger and a flow heat exchange experiment device. The micro-channel heat exchanger is characterized in that the heat exchanger at least comprises an upper cover plate and a lower cover plate; three flow channels, namely, a first flow channel, a second flow channel and a third flow channel, and the inlets and outlets of the three flow channels are machined on the upper cover plate and the lower cover plate respectively; the first flow channel, the second flow channel and the third flow channel are each composed of two Y-shaped flow channels; the first flow channel and the third flow channel are formed by connecting the bifurcate ends of two Y flow channels, and the second flow channel is formed by connecting the non-bifurcate ends of two Y flow channels; and when fluid flows in the first flow channel, the second flow channel and the third flow channel, the flow direction at the inlets and the flow direction at the outlets are perpendicular to each other. The heat dissipation performance is good. Electronic equipment of high heat flux density can be kept at uniform temperature.

The invention relates to a melt feeding device, and a device and a method for forming continuous fiber reinforced thermoplastic impregnated belts, and belongs to the technical field of the preparation of continuous fiber reinforced thermoplastic resin composites. The melt feeding device comprises a main runner which is orderly communicated with primary sub-runners, secondary sub-runners and third-stage sub-runners; the primary sub-runners are divided from the main runner and distributed in parallel in parallel with one another along the main runner; the device for forming the continuous fiber reinforced thermoplastic impregnated belts comprises an impregnation unit in which the melt feeding device and impregnation rollers are arranged, wherein the first pushing impregnation roller in the feeding direction is arranged right above the main runner of the melt feeding device; the method for forming the continuous fiber reinforced thermoplastic impregnated belt comprises the steps of preheating pre-dispersing, preheating tensioning, impregnating, lustering, cooling, collecting and the like. The melt feeding device and the device for forming the continuous fiber reinforced thermoplastic impregnated belts are simple in structure; besides, the fiber preheating speed is high, the fiber preheating efficiency is high, the melt flowing resistance and the melt heating time are reduced, and the fiber wetting effect of the impregnated belts is excellent.

The invention relates to a packaging die and a packaging method. The die is used for packaging a memory card and comprises an upper die and a lower die. The upper die comprises an upper die plate and an upper die core fixed on the upper die plate. The lower die comprises a lower die core, a lower die holder, an injection device and a lower bottom plate. The lower die core is fixed on the lower die holder. The injection device and the lower die holder are arranged on the lower bottom plate. The lower die core is provided with a plurality of sleeves for placing resin material cakes. The positions on the upper die core corresponding to the sleeves are provided with runners. The injection device comprises a plurality of adhesive extruding rods with adhesive extruding heads and an adhesive extruding seat for installing the adhesive extruding rods. The adhesive extruding heads are in fit with the sleeves. The method uses the die to package the memory card. The packaging die of the inventionadopts a plurality of material barrels and a plurality of adhesive extruding rods matched with the material barrels, shortens the length of the runners of the die and avoids conditions that the resingenerates bubbles, pores, is not full filled and the like in the flowing process.

The invention discloses a low-resistance enhanced heat transfer structure based on a nano-superwetting interface, which includes a lower embedded microchannel layer and an upper manifold channel layer, the embedded microchannel and the manifold channel are vertically arranged, and the lower embedded microchannel The layer is composed of several embedded microchannel units. The cross section of the embedded microchannel of each unit is a rectangular gradually expanding section along the flow direction of the cooling medium. The shape of the embedded microchannel of each unit is isosceles trapezoidal. The tube channel layer is composed of serpentine manifold channels, and two adjacent serpentine channels constitute the inlet and outlet of the manifold channel. The present invention utilizes a hierarchical flow structure to construct a microchannel heat sink. By combining the microchannel heat sink with a nano-superwetting interface and a gradually expanding microchannel section, the heat transfer characteristics and resistance characteristics can be improved at the same time. In the case of high efficiency, the low resistance of the micro-channel heat sink can be realized to enhance heat transfer.