48results about How to "Eliminate production safety hazards" patented technology

The invention discloses an assembly tooling for a hose throttle. The assembly tooling comprises an air tube, a distribution box, an air source, wires, a movable sliding block, a guide rail, a control switch, a guide rod, a positioning groove, a first air cylinder, a second air cylinder, a time solenoid valve and a tooling table frame capable of holding the parts. The solenoid valve is connected with and controls actions of the first air cylinder and the second air cylinder, the guide rod is fixed with the movable sliding block, the guide rod aligns to the positioning groove and performs guiding, the first air cylinder is connected with the movable sliding block, the movable sliding block is mounted on the guide rail and can move along the guide rail, and the second air cylinder is perpendicular to the first air cylinder. By means of the assembly tooling, the production efficiency is high, the product quality can be guaranteed, and potential production safety hazards can be eliminated.

The invention relates to a method for preparing cassava polysaccharide iron. The method is to oxidize and degrade cassava starch with hydrogen oxide to obtain an applicable oligosaccharide solution, and then add ferric chloride and sodium hydroxide solution dropwise to perform a complex reaction to obtain cassava polysaccharide. The iron synthesis solution is then filtered to remove water-insoluble impurities to obtain cassava polysaccharide iron solution, which is then desalinated and concentrated by ultrafiltration membrane technology, spray dried or vacuum evaporated, dried and crushed, and finally cassava polysaccharide iron products are obtained. The present invention uses hydrogen peroxide to oxidize and degrade cassava starch to replace the previous acid or enzymatic degradation process, which not only can significantly reduce the generation of by-product glucose than the acid method, obtain a higher yield of applicable oligosaccharides, and is more efficient than the enzymatic method. The degradation time is greatly shortened, thereby reducing production costs; it also replaces the previous ethanol or methanol solvent method to remove sodium chloride, avoids the use of flammable and explosive materials such as ethanol or methanol, and eliminates hidden dangers in production safety. The cassava polysaccharide iron prepared by the invention can be used as an iron supplement for poultry and livestock.

The invention discloses an automatic dyeing machine for injection molding lenses, which comprises a frame, a transmission mechanism, a grasping mechanism, a lifting mechanism, a cleaning mechanism, a water cutting mechanism, a dyeing mechanism, a lens fixture and a programmable controller; a first cleaning area is formed in the frame , the water cutting area, the dyeing area and the second cleaning area; the lens fixture is set in the first cleaning area and the water cutting area through the cooperation of the transmission mechanism and the lifting mechanism, and is also set in the water cutting area and the water cutting area through the cooperation of the grabbing mechanism and the lifting mechanism. The dyeing area and the second cleaning area; the water cutting mechanism keeps the lens fixture in a static state during water cutting. During the water cutting process, the lens is still, and the water is cut by the water flow rising first and then falling to make the water cutting more thorough; the dyeing mechanism can cooperate with The dyeing car is assembled with the main dyeing tank and the dyeing auxiliary tank, so as to move the rack to replace the dyeing solution. The invention can realize the automation of the lens dyeing process, improve the dyeing efficiency of the lens, and improve the quality of the dyed lens.

The invention discloses a motor thermoplasticizing apparatus with a characteristic of less waste. The motor thermoplasticizing apparatus comprises a rack (1), wherein a support plate (2) is arranged on the middle portion of the rack (1), a set of independent concave molds (4) are arranged on the support plate (2), injection molding ports (4) are arranged on the concave molds (4) and are connected to an injection molding pipeline (5), the upper portion of the rack (1) is provided with a hydraulic rod (6), the hydraulic rod (6) is connected to a second support plate (7), the second support plate (7) is provided with convex molds (8), a cooling pipeline (9) and a heating pipe (10) are arranged inside the injection molding pipeline (5), the hydraulic rod (6) is connected to a controller (12), and the controller (12) is connected to a temperature sensor (13). According to the present invention, the motor thermoplasticizing apparatus has characteristics of production efficiency increasing, production waste reducing, labor intensity reducing, production cost reducing, product quality improving, real-time inside-injection mold pipeline temperature adjusting, and production safety hidden danger eliminating.

The invention relates to a plate-like part and a manufacturing method thereof. The plate-like part comprises a plate-like part body and reinforcing parts arranged inside the plate-like part body, and the outer surface of each reinforcing part is wrapped with a layer of medium. The manufacturing method includes the following steps that the outer surface of each reinforcing part is wrapped with the layer of medium; each reinforcing part is placed in a mold, and a first auxiliary structure and a second auxiliary structure are arranged at the two ends of each reinforcing part correspondingly and protrude out of the two end faces of the reinforcing part by a preset length in the axial direction of the reinforcing part; injection molding operation is carried out through the mold, so that the reinforcing parts are arranged inside the formed plate-like part body; and after injection molding, the auxiliary structures are removed. The plate-like part has the advantages of being good in pressure bearing effect, small in thickness and safe in production due to the adoption of the mode that the reinforcing parts are wrapped with the media in advance, the production cost is lowered, and the problem that a plate-like part obtained through existing production techniques is prone to shrinkage cracks is solved.

The invention provides a process for synthesizing 4-Nitrobenzyl chloroformate, which comprises reacting trichloromethyl chloroformate or bis(trichloromethyl)carbonate with p-nitrobenzyl alcohol at -40-20 deg C under the action of acid-binding agent, finally carrying out post-treatment to obtain the outcome yield.