7results about How to "Large cooling range" patented technology

The application provides an aircraft wing rudder thermal protection device based on an internal-external composite cooling structure and an aircraft, which is composed of a cold gas source, a cold gas transportation device and an internal-external composite cooling structure. The cold gas source provides high-pressure low-temperature cold gas, and the cold gas transportation device contains a cold gas pipeline, a control valve and a cold gas buffer cavity. The internal-external composite cooling structure includes an internal cooling channel and a surface mass injection channel: the internal cooling channel integrates a turbulence rib column, a curved channel, a ribbed channel and a coupled layer plate cooling structure, strengthens convective heat exchange and improves structural strength; the surface mass injection channel is a discrete gas film hole, and the cold gas heated and warmed by the internal cooling channel is sprayed out through the discrete gas film hole to form a protective gas film, which isolates the high-temperature airflow. The application has the following advantages: 1) multiple internal heat exchange strengthening structures are integrated to improve the heat absorption capacity of the coolant; 2) the thermal protection capacity is strong; 3) the thermal protection performance can be dynamically adjusted to adapt to the changing flight thermal environment; and 4) the wing rudder can be widely cooled.

This utility model discloses an injection mold for battery plastic parts, belonging to the field of injection molds. The injection mold for battery plastic parts includes a moving mold and a fixed mold. The fixed mold is mounted on a fixed mold base plate, and the moving mold is mounted on a support plate. The support plate is connected to the moving mold base plate via a partition block. A punch is mounted on the moving mold, and a die is mounted on the fixed mold. A cooling box is provided on the outer side of the die, installed in a slot on the fixed mold. Both ends of the cooling box are connected to water inlet pipes via first distribution boxes, and the top and bottom of the cooling box are connected to drain pipes via second distribution boxes. Multiple cooling water pipes are evenly installed on the outer side of the cooling box. This utility model, through the annular cooling box mounted on the fixed mold and the second guide rod on the moving mold, enables rapid cooling after mold closing. Furthermore, the cooling box increases the cooling range, accelerates the cooling efficiency of the mold, and ensures more uniform cooling.

The invention discloses a degradable environment-friendly plastic packaging bag material and a blow molding process thereof, and relates to the technical field of plastic packaging bag molding.The degradable environment-friendly plastic packaging bag material comprises a bottom plate, a fixing frame is fixedly connected to the upper side of the bottom plate, a first electric push rod is fixedly connected to the upper side of the fixing frame, and a blow molding unit is arranged at the output end of the lower side of the first electric push rod; two fixing blocks and an air cooler are fixedly connected to the upper side of the bottom plate, second electric push rods are fixedly connected to the outer sides of the fixing blocks, a blowing mold is fixedly connected to the outer ends of the second electric push rods, an air outlet pipe is fixedly connected to the upper side of the blowing mold, and the blowing unit comprises a blowing machine. By arranging the blow molding machine, the stretching pipe and the blow molding cylinder, the blow molding machine can conveniently conduct blow molding treatment on molten materials, through the screw, the threaded cylinder, the blow molding pipeline, the cooling pipeline and the water tank, the blow molding pipeline can be conveniently controlled to descend, the interior of a packaging bag is rapidly cooled through the cooling pipeline, and the packaging bag is evenly cooled.

The utility model discloses an auxiliary cooling device for a conical drilling machine, which relates to the technical field of auxiliary cooling devices and comprises a water tank, the upper side of the water tank is rotatably connected with a rotating seat, the upper side of the rotating seat is provided with an angle adjusting mechanism, the outside of the angle adjusting mechanism is fixedly connected with a connecting piece, and the inner side of the connecting piece is fixedly connected with a fixed pipe. A guide pipe is fixedly connected to the exterior of the water pump, a connecting plate is fixedly connected to the exterior of the rotating seat, two sets of symmetrically arranged fixing plates are fixedly connected to the upper side of the water tank, tension springs are fixedly connected between the fixing plates and the connecting plate, and an extension plate is fixedly connected to one side of the connecting plate; a direction adjusting mechanism is installed on the upper side of the water tank. According to the device, the angle of the spray head is flexibly adjusted through driving of the first motor, it is ensured that water flow directly cools the high-temperature working part of the conical drilling machine, meanwhile, the spray head swings left and right back and forth, the cooling coverage range is enlarged, and the overall cooling efficiency is remarkably improved.

The utility model relates to the technical field of dust collector part machining, and discloses an automatic hair brush shaft punching device which comprises a working table, the top wall of the working table is fixedly connected with a fixing shaft device, the rear side of the working table is fixedly connected with a connecting frame, and the middle of the top wall of the connecting frame is fixedly connected with a punching device. A frequency conversion fan is fixedly connected to the left side of the top wall of the connecting frame, the rear end of the right side of the frequency conversion fan communicates with an extraction pipe, the bottom end of the extraction pipe communicates with a collecting box, a filter plate is fixedly connected to the middle of the inner wall of the collecting box, and a plurality of inclined grooves are formed in the middle of the top wall of the workbench and the middle of the top wall of the collecting box correspondingly. According to the scrap collecting device, airflow extraction can be completed through the multiple inclined grooves, then scraps enter the collecting box, meanwhile, under blocking of the filter plate, the scraps are collected and treated by the collecting box in a unified mode, and the situation that the scraps drift away in a machining workshop and enter machining equipment to damage the machining equipment is avoided.

The application relates to the technical field of machining, and discloses a bracket for machining, which comprises a bracket main body, a fixed plate fixedly connected to the inner side of the bottom of the bracket main body, a water tank and a double-head conveying pump fixedly connected to the upper end of the fixed plate, and the side part of the double-head conveying pump is communicated with the inside of the water tank through a pipeline; the bracket can convey water in the water tank to the injection pipe through the double-head conveying pump and spray the water out through an atomizing high-pressure nozzle; the atomized water can more quickly absorb heat, thereby more effectively taking away the heat on the surface of a workpiece, realizing rapid cooling, and under the cooperation of the gear and the rack plate, the atomizing high-pressure nozzle can be conveniently driven to horizontally reciprocate on the upper end of the bracket main body, the cooling range is increased, the cooling efficiency is improved, and meanwhile, the cooled water is filtered through a filter screen and then backflows to the water tank through a circulating pipe, so that the water resource can be recycled, and the production cost is reduced.

The utility model belongs to the technical field of stirring chilling rods, and particularly relates to a quick replacement structure for a stirring chilling rod of metal semi-solid pulping equipment, which comprises a base plate mounted on a metal semi-solid pulping equipment main body, a mounting plate movably mounted on the upper surface of the base plate, and a stirring tank fixedly mounted on the upper surface of the mounting plate. A fixing frame is slidably mounted on the upper surface of the baffle, a transmission assembly is fixedly mounted on the inner wall of the fixing frame, one end of the transmission assembly is fixedly mounted on the side wall of a fixing frame, a motor is fixedly mounted in the fixing frame, and an output shaft of the motor is connected to the inner bottom face of the fixing frame in a penetrating mode. An output shaft of the motor is fixedly provided with a mounting sleeve, and the inner wall of the mounting sleeve is in threaded connection with a stirring chilling rod. The pin tightening device has the advantage that the first electric sliding table slides to drive the positioning pin to move into the positioning groove, so that the pin tightening effect is achieved.