16results about How to "Stable quality control" patented technology

The invention discloses an intelligent recognition and positioning plate shearing machine based on vision assistance, and relates to the technical field of plate shearing machines, the intelligent recognition and positioning plate shearing machine comprises a plate shearing rack, a fixed bearing table and a positioning frame, the positioning frame is installed on the front face of the plate shearing rack, a feeding push plate is movably installed on the inner side of a feeding frame, and a plate guide-in opening frame is installed at the rear end of the feeding push plate; and the in-place detection top frame is mounted at the top of the plate guide-in opening frame. The positioning material guiding assembly is arranged above the positioning frame, a feeding air cylinder pushes a feeding push plate so that a plate can be guided into an opening frame to enter the shearing position of the plate shearing machine frame, and feeding amount collecting equipment monitors the horizontal moving distance of the plate in real time so that it can be ensured that the plate can accurately reach the shearing position; the high-precision positioning capability is beneficial for improving the shearing precision so as to reduce the generation of waste materials, the accurate feeding and positioning of the positioning material guide assembly are beneficial for realizing stable quality control, and the consistency of the plate shearing process is ensured.

The utility model relates to the technical field of pipettor air tightness detection, and discloses a pipettor air tightness detection device, which comprises a pressure box, a sealing mechanism arranged at the top of the pressure box, the sealing mechanism is communicated with the pressure box, a reagent tube arranged at the top of the pressure box, the reagent tube is communicated with the pressure box, and the pressure box is communicated with the sealing mechanism. One side of the water adding pipe is communicated with a water tank, and the bottom of the pressure tank is communicated with a drainage pipe; according to the utility model, by increasing the number of pipettes for single air tightness detection by an experimenter, time and labor cost can be saved, and the pipettes required by an experiment can be quickly prepared; and during single-time detection, whether the same batch of pipettors have the same defect or excellent air tightness can be found, and the consistency between the pipettors can be verified, so that the quality control of the pipettors is relatively stable, and the accuracy and reliability of an experimental result can be ensured.

The invention relates to the technical field of non-standard automation, in particular to an automatic closestool assembling and stacking line which comprises a base assembling and conveying line, a base assembling mechanism, a transfer conveying line, a ribbon fixing mechanism, a packaging and positioning mechanism, a material taking mechanical arm, a material taking mechanism, a stacking and supporting mechanism and a stacking and film wrapping mechanism which are sequentially arranged. A manual assembling position is arranged on one side of the base assembling conveying line and used for manually assembling toilet bases. The seat body assembling mechanism is used for assembling a toilet seat and a toilet base; the transfer conveying line is used for loading an assembled toilet body into a packaging upper cover box packaging base; through seamless butt joint of continuous operation units such as the base assembly conveying line, the base body assembly mechanism and the transfer conveying line, high automation of the whole production process is achieved, manual intervention is greatly reduced, and therefore the production efficiency is remarkably improved.

The utility model discloses a heterogeneous catalytic reaction separation device which comprises a reaction kettle, a built-in filter I, a built-in filter II, a stirring mechanism, a reaction liquid receiving container I, a reaction liquid receiving container II and a control unit, the reaction kettle comprises a kettle body and a kettle cover, and the kettle cover is arranged at the top of the kettle body. A discharging side opening is formed in the side wall of the lower part of the kettle body, the discharging side opening is connected with the reaction liquid receiving container I through a pipeline, and the built-in filter I is arranged at the discharging side opening. A feed liquid emptying opening is formed in the center of the bottom of the kettle body and is connected with a reaction liquid receiving container II through a pipeline, and a built-in filter II is arranged at the feed liquid emptying opening. A solid catalyst discharge port is formed in the adjacent side of the feed liquid emptying port and is connected with a third pipeline. The filter disclosed by the utility model adopts the slotted filter screen, so that solid catalyst particles are prevented from being clamped at meshes of the filter, reactants are fully contacted with the solid catalyst, the catalytic efficiency is high, the quality control of reaction liquid is stable, and the solid catalyst is convenient to replace.

The application relates to the technical field of admixtures for building materials, in particular to a special polycarboxylic water reducing agent for gypsum boards, which comprises the following steps: S1, preparing a multifunctional monomer mixed solution; S2, preparing an initiation system: dissolving polyether macromonomer and a chain transfer agent in part of water, placing the water in a reactor, heating to a preset temperature and keeping constant; S3, performing a gradient copolymerization reaction: under the constant temperature condition, synchronously and slowly adding the multifunctional monomer mixed solution and an oxidant aqueous solution into the initiation system; S4, performing aging and post-treatment: after the addition is completed, keeping constant temperature aging at the preset temperature, then reducing the temperature, and neutralizing with lye until the pH value is 6-7, so that the special polycarboxylic water reducing agent is obtained. The whole process does not need toxic and harmful raw materials such as formaldehyde and naphthalene, and conforms to the green chemistry direction. The problems of demolding difficulty and production line congestion caused by retardation are solved, and the mold turnover rate and the production line efficiency are significantly improved. Under a higher water reducing rate, lower porosity (non-bubble pore) and higher compactness can be obtained.

The application discloses a pesticide synergist and a preparation method thereof. The pesticide synergist comprises a silanol-initiated polyether shown in formula I, an inositol phosphate-initiated polyether shown in formula II, an alcohol auxiliary agent and water. The silanol-initiated polyether shown in formula I and the inositol phosphate-initiated polyether shown in formula II are synergized, so that the adhesion, spreading, penetration and retention capacity of pesticide droplets on a target surface are significantly enhanced, and the utilization rate of the pesticide is effectively improved. The product has the advantages of low toxicity, environmental friendliness, multi-functional synergism, wide compatibility and the like, the preparation process is simple and stable, and the product is suitable for industrial production.

The invention discloses a method for preparing magnesium titanate with controllable particle size, which belongs to the field of magnesium titanate preparation. The preparation process is as follows: after magnesium oxide and titanium dioxide are evenly mixed, deionized water is added for wet ball milling, a dispersant is added to the mixed slurry for continued ball milling, and then drying is performed, first placed in a sagger, and then pre-sintered and high-temperature sintered in a push plate kiln, and finally cooled and ball milled and sieved to obtain the final product, magnesium titanate powder. The present invention improves the existing preparation process, can be controlled at a certain micron scale, and synthesized magnesium titanate powder with uniform particle size is prepared, ball milling and sintering processes are used for processing, which greatly saves the process flow, the process is simpler and more convenient, the finished product quality control is more stable, the product particle size is smaller, the reflectivity is higher, it has better pigment performance, and the scope of application is wider.

The invention provides an arch foot cushion block integrated pouring and vibrating table which is characterized in that the arch foot cushion block integrated pouring and vibrating table comprises a bottom frame and a vibrating table body, the bottom frame comprises a frame body, a plurality of supporting legs are symmetrically arranged at the lower end of the frame body, the vibrating table body comprises a panel, a formwork grid is arranged on the upper side of the panel, a reinforcing frame is arranged on the periphery of the panel, and an annular frame is arranged on the periphery of the formwork grid; a plurality of groups of elastic supporting mechanisms are arranged between the frame body and the panel, and an attached vibrator is mounted on the lower surface of the panel. The template grids are arranged on the panel, so that the arch foot cushion blocks can be produced in batches, the quality control is stable, the structural shape change caused by mold movement during pouring is avoided, the number of the cushion blocks in a tunnel is ensured, the number of constructors is reduced, the working efficiency is improved, and the purposes of simplicity, convenience, convenience in operation, rapid construction and quality improvement are achieved; and the problems that the tunnel arch springing is insufficient in slag, and the arch center cushion block is difficult to form are effectively solved.

The present invention relates to the technical field of inorganic metal oxide pigments, and specifically discloses a green hyperspectral camouflage inorganic pigment and a preparation method thereof. The green hyperspectral camouflage inorganic pigment comprises micron Cr2O3 10%-30%, micron Co2O3 30%-50%, nano ZnO 6%-15%, nano Al2O3 5%-15%, nano SiO2 3%-10%, nano SrO 3%-10%, nano BaO 3%-5% and nano Y2O3 5%-10%. The green hyperspectral camouflage inorganic pigment provided by the present invention has a spectral reflectivity of 59% at 1200nm; and a spectral reflectivity of 38% at 1400nm; the K value of the prepared green hyperspectral camouflage inorganic pigment is above 10, and the reflectivity of the green hyperspectral camouflage inorganic pigment is similar to that of green plants, and can be integrated with the natural background to achieve a camouflage effect.

The invention relates to a piece separating device for a thick film hybrid integrated circuit connecting piece, which is characterized by comprising a base (1), a pair of fixing blocks (2) arranged on the base (1), clamping grooves (3) corresponding to the circuit connecting piece (6) arranged on the side walls of the corresponding sides of the two fixing blocks (2), at least one piece breaking block (4), and slots (5) distributed corresponding to the clamping grooves (3) arranged on one side of the piece breaking block (4). The device is simple in structure, convenient to operate, good in device universality and low in preparation cost, the contact surface between the tool and the circuit connecting piece is large during piece breaking, the stress of the circuit connecting piece is balanced during piece breaking, and a non-lineation part in a large-size unit cannot be broken.

The application relates to the technical field of magnesium alloys, and discloses a Mg-Zn-Ca-Sr medical magnesium alloy and a preparation method thereof, wherein the chemical composition of the alloy is as follows in percentage by mass: Zn 2.0%-6.0%, Ca 0.5%-2.0%, Sr 0.1%-1.0%, inevitable impurity elements less than or equal to 0.2%, and the balance of Mg. The magnesium alloy has good mechanical properties, a degradation rate and biological activity, and provides a solution to the clinical problems such as non-degradability, non-matching elastic modulus and lack of biological activity of traditional medical metals.

The present invention relates to the field of non-standard automation technology, and in particular to an automatic toilet assembly and palletizing line, comprising a base assembly conveyor line, a seat body assembly mechanism, a transfer conveyor line, a tie fixing mechanism, a packaging positioning mechanism, a material picking manipulator, a material picking mechanism, a palletizing support mechanism and a palletizing wrapping mechanism which are arranged in sequence, wherein a manual assembly position is arranged on one side of the base assembly conveyor line for manual assembly of a toilet base; the seat body assembly mechanism is used for assembling a toilet seat with a toilet base, and the transfer conveyor line is used for loading the assembled toilet body into a packaging upper cover box packaging base; the present invention realizes a high degree of automation in the entire production process through seamless docking of continuous operating units such as a base assembly conveyor line, a seat body assembly mechanism and a transfer conveyor line, greatly reduces manual intervention, and thus significantly improves production efficiency.

The invention relates to the field of resin production, in particular to a mechanical automatic discharging mechanism for resin production, which comprises a flow control valve, a charging mechanism, a quantitative weighing mechanism and a mechanism shell, and is characterized in that the mechanism shell comprises a shell structure frame, an upper cover plate is arranged above the shell structure frame, and a lower cover plate is arranged above the shell structure frame; a feeding opening is formed in the upper cover plate, and a flow control valve is connected to the lower portion of the feeding opening. According to the mechanical automatic discharging mechanism for resin production, in the using process, the flow control valve can control the resin inflow rate, the cleaning mechanism can clean resin adhering to the inner wall of the charging barrel, the resin discharging rate is increased through the air compressor and the knocking structure, and after the discharging process is completed, the resin discharging speed is increased. The conveying belt conveys the previous discharging barrel out of the mechanism and conveys the discharging barrel into the next discharging barrel, full automation of the discharging process is achieved, manual participation is reduced, the standardization degree is improved, interference caused by human factors is reduced, and stable quality control is achieved.

This invention provides a dense honeycomb structure cross-linked sodium hyaluronate gel and its preparation method, comprising the following steps: S1. Preparing a chloride ion solution, adding a cross-linking agent, slowly adding sodium hyaluronate under stirring conditions, adjusting the pH to alkaline, and stirring evenly under vacuum conditions to obtain a mixture; S2. Maintaining vacuum conditions, heating the mixture in a water bath, cutting it to obtain a block gel, cross-linking it in a water bath to obtain a cross-linked sodium hyaluronate gel; S3. Adjusting the pH of the cross-linked sodium hyaluronate gel to neutral, performing a first vortex-shear composite grinding treatment to obtain a homogeneous paste-like gel, dialysis, then a second vortex-shear composite grinding treatment, adding non-cross-linked sodium hyaluronate and PBS solution, performing a third vortex-shear composite grinding treatment, filling, and sterilizing to obtain the dense honeycomb structure cross-linked sodium hyaluronate gel. The dense honeycomb structure cross-linked sodium hyaluronate gel obtained by this invention has smooth injection, strong support, long-lasting effect, and low adverse reaction rate.

The utility model discloses a ceiling decoration strip which comprises an EPS decoration strip body, the EPS decoration strip body comprises a bottom face decoration strip and a side face decoration strip, and the connecting end of the bottom face decoration strip and the connecting end of the side face decoration strip are perpendicularly connected with each other. The bottom face decoration strip further comprises a bottom face lamp groove, the bottom face lamp groove extends outwards in the direction away from the connecting end of the bottom face decoration strip, a lamp groove installation position is arranged on the upper surface of the bottom face lamp groove, the installation end of the side face decoration strip extends in the direction away from the side wall, and arc transition is formed between the outer edge of the installation end of the side face decoration strip and the connecting end of the side face decoration strip. Positioning strips are arranged at the mounting ends of the bottom surface decoration strips and the mounting ends of the side surfaces. Therefore, the EPS decoration strip body does not need to be manufactured on the construction site, and can be directly fixed to the side wall and the top wall through the positioning strip after being cut according to the required size on the construction site. Therefore, the construction technology depending on workers is not needed, the construction procedures are reduced, the installation efficiency is improved, and quality control is more stable.

The invention relates to a method for evaluating a puree tissue structure and viscoelasticity based on light absorption and light scattering characteristics. The method comprises the following steps: acquiring light absorption and light scattering signals of apple puree in visible-near-infrared and short-wave near-infrared bands under different heat treatment conditions; after collected optical signals are preprocessed through standard normal transformation and a Savitzky-Golay smoothing method, an evaluation model of the apple puree tissue structure (particle area and particle perimeter) and the viscoelasticity (viscosity and viscoelasticity) is constructed based on a partial least square regression algorithm, and effective prediction of the apple puree tissue structure and the viscoelasticity is achieved only through optical characteristic parameters. According to the method, the tissue structure and viscoelasticity of the puree under different heat treatment parts can be evaluated only by acquiring light absorption and scattering signals of the puree, and technical support is provided for a puree processing enterprise to realize rapid, efficient and stable product texture quality monitoring.