14results about How to "Reduce production steps" patented technology

According to the special-shaped FPC and the manufacturing method thereof, the pre-formed special-shaped flexible base material layer is arranged, the shape of the pre-formed special-shaped flexible base material layer is directly matched with the special-shaped surface of a target installation space, and a circuit layer, an insulation covering layer and a special-shaped supporting layer are all attached to the special-shaped surface of the special-shaped flexible base material layer, so that the FPC does not need to be forcibly bent, twisted or stretched subsequently, and the production efficiency is improved. The problems of circuit breakage and delamination caused by stress concentration are fundamentally avoided, the structural stability of the FPC is improved, and the service life of the FPC is prolonged. The flexible circuit board is used for solving the technical problem that in order to achieve special-shaped layout, the plane of an existing flexible circuit board generally needs to be forcibly bent, twisted or stretched.

The utility model provides a precast concrete pipe pile which comprises a precast concrete pipe pile body, the precast concrete pipe pile body comprises an outer shell, an inner shell and concrete, a reinforcement cage is bound between the outer shell and the inner shell, the concrete is poured between the outer shell and the inner shell, and the reinforcement cage is poured in the concrete. Due to the overall arrangement, demolding is not needed after prefabrication is completed, so that production steps are reduced, and meanwhile the overall strength is improved; after the two prefabricated concrete pipe pile bodies are in butt joint in the later period, a cavity can be formed in the butt joint position, the cavity can be filled with fluid type sealing materials such as concrete and resin, and after the fluid type sealing materials are solidified, the connection position is fully sealed.

This invention discloses a method for synthesizing cefotiam, using 7-aminocephalosporanic acid (7-ACA) as the parent nucleus and introducing a 4-dimethylaminopyridine-dimethyl carbonate composite catalytic system. The reaction is carried out in a one-pot process involving 3-position nucleophilic substitution, 7-position amidation, and simultaneous deprotection in a green mixed solvent of ionic liquid [BMIM]BF₄-water with 1-(2-dimethylaminoethyl)-1H-5-mercapto-tetrazole and compound I. This method simplifies the process, improves selectivity, produces a high-purity product with stable yield, and is suitable for industrial production.

The utility model discloses an upper rotor charging tray which comprises a base plate, a first positioning plate and a second positioning plate, and is characterized in that a first threaded hole is formed in the base plate, a first bolt is in threaded connection with the interior of the first threaded hole, a handle is arranged on the outer surface of the first bolt, and a second threaded hole is formed in the second positioning plate. A first positioning column is fixedly connected to the upper surface of the base plate, first positioning holes are formed in the first positioning plate and the second positioning plate, and second threaded holes are formed in the base plate, the first positioning plate and the second positioning plate. When the first positioning disc and the second positioning disc are damaged after being pulled out and inserted for a long time, damaged parts can be replaced, the use cost is reduced, the upper rotor material disc is prevented from being integrally replaced, waste is avoided, the integrated upper rotor material disc is complex in process and long in flow, production steps are reduced through an assembly mode, and the production efficiency is improved. And the waste of materials is reduced.

This invention provides a multi-head steel strip winding control system, including a main channel with multiple winding stations equipped with winding wheels along its length. The steel strip moves along the main channel, arranged from the outside to the inside and sequentially wound onto the winding wheels at each winding station. A redundant steel strip detection unit detects the amount of steel strip redundancy. When the redundancy exceeds a maximum redundancy threshold, the winding wheel speed is increased until the redundancy falls below a minimum redundancy threshold, at which point the speed is reduced back to the initial speed. As the steel strip passes through the main channel, it is wound directly onto multiple winding wheels in an outward-to-inward sequence, eliminating the need for rewinding via a rewinding machine and then rewinding via a layer winding machine, thus shortening production steps. Simultaneously, it keeps the steel strip in a relaxed state during winding, preventing excessively long redundant steel strips from drooping and contacting the ground, which could cause multiple narrow steel strips to knot or rub against the ground, affecting continuous production and product quality.

The invention discloses a copolyester hot melt adhesive for laser edge sealing and a preparation method thereof. The copolyester hot melt adhesive is prepared from the following raw materials in percentage by mass: 51 to 56 percent of binary acid, 40 to 45 percent of dihydric alcohol, 0.1 to 1.5 percent of laser absorbent, 0.025 to 0.06 percent of catalyst, 0.01 to 0.03 percent of heat stabilizer, 0.1 to 1 percent of antioxidant, 0.2 to 0.5 percent of trimethylolpropane and 0 to 0.3 percent of inorganic hardening agent. The laser absorbent is one or more of cesium tungsten bronze or lanthanide hexaboride, the particle size is 30-80 nm, and the specific surface area is 20-50 m < 2 > / g. According to the invention, the laser absorbent uniformly enters the hot melt adhesive through in-situ polymerization, so that the effect of absorbing laser melting is achieved; meanwhile, a polar monomer, a hardening agent and a reasonable material ratio are introduced, so that the copolyester hot melt adhesive which can be used for laser edge sealing and is heat-resistant and high in peel strength is prepared.

This utility model discloses an outdoor unit for an air conditioner and an air conditioner having the same. The outdoor unit includes an air duct, fan blades, and an air guide ring. The cross-section of the air guide ring along the air outlet direction includes a first air guide section and a second air guide section. The airflow passes through the second air guide section and the first air guide section before exiting the outdoor unit. The cross-sectional projection of the first air guide section is an inclined straight line, while the cross-sectional projection of the second air guide section is a plurality of sequentially connected arcs. By sequentially arranging the air guide ring at the end of the air duct into a first air guide section and a second air guide section along the air outlet direction, and by setting the cross-section of the first air guide section as an inclined straight line and the cross-section of the second air guide section as a continuous arc segment, the first air guide section can better guide the airflow to the fan blades for driving circulation. The gap between the second air guide section and the fan blades is relatively small, increasing the airflow of the outdoor unit, reducing the rotational speed of the outdoor unit, thereby reducing the operating noise of the outdoor unit and improving the user experience.

The application discloses a control method and device of a winding machine and a readable storage medium, and relates to the technical field of equipment control. The control method of the winding machine comprises the following steps: before the winding machine performs coil winding on an iron core, determining a first winding turn number corresponding to the iron core; according to the first winding turn number, determining a second winding turn number corresponding to the iron core, wherein the second winding turn number is smaller than the first winding turn number; in the process of controlling the winding motor to drive the iron core to rotate at a first rotating speed to perform coil winding on the iron core, detecting the number of coils wound on the iron core by controlling a counter and a photoelectric switch; under the condition that the number of coils wound on the iron core is greater than or equal to the second winding turn number, controlling the winding motor to drive the iron core to rotate at a second rotating speed, wherein the second rotating speed is smaller than the first rotating speed; and under the condition that the number of coils wound on the iron core is greater than or equal to the first winding turn number, controlling the winding motor to stop working. The application improves the production efficiency of the winding machine.

The invention relates to the technical field of food processing, in particular to a composite modifier for raw wet flour products and application of the composite modifier. The feed additive is prepared by compounding starch, protein, an enzyme preparation, colloid, salts and auxiliary materials according to a specific proportion. According to the composite modifier, through the synergistic effect of multiple components, the elasticity, smoothness and soft elasticity of raw wet noodles can be remarkably improved at the same time, the raw wet noodles are endowed with excellent soaking resistance and blocking resistance, and the noodles are effectively prevented from being placed into lumps for a long time. The raw materials are natural, the functions are comprehensive, the effect is remarkable, and the method is suitable for industrial production and quality improvement of various raw wet flour products.

The utility model discloses a film sealer mechanism and the film blowing machine of application thereof applied to film blowing machine relates to film production technical field, including frame, be provided with the cross bar on the frame, be provided with the sliding block on the cross bar slidably, and the clamping block is connected to the sliding block lower extreme, and the clamping block one side is provided with the seal knife, wherein, heating element is arranged in the clamping block, and the clamping block will heat transfer to the seal knife after being heated by heating element, still be provided with the backboard on the frame, and the backboard is opposite to the seal knife and is provided, and the film passes through between the backboard and the seal knife, the utility model discloses through setting up the seal knife to the film and carry out seal, make the upper and lower two layers of film hot melt bonding, and the space in the film is divided into two spaces, thereby satisfy the production demand of making the film bag with two chambers, can reduce production step, improve production efficiency, and cool the seal place after seal and form the shape fast, avoid hot melt bonding place and separate again and occur bonding when winding.

The application relates to the technical field of organic synthesis, and relates to a synthetic process of rifampicin by taking rifamycin O as a starting material, which comprises the following steps: after rifamycin O is hydrolyzed, a cyclization reaction is carried out on the hydrolyzed rifamycin O and dimethylol tertiary butylamine, and crystallization is carried out, so that rifamycin oxazine is obtained; a condensation reaction is carried out on the rifamycin oxazine and 1-methyl-4-aminopiperazine, and crystallization is carried out, so that rifampicin is obtained. Through the above technical scheme, the problems of low raw material output, insufficient purity and complex preparation in the production of rifampicin in the prior art are solved.

The utility model discloses a new energy battery tray structure which comprises a frame, an upper cover plate and a lower tray, the frame is formed by splicing hollow pipes, the lower tray is arranged at the bottom of the frame, a battery pack is arranged on the inner side of the frame, the upper cover plate is arranged above the battery pack, the upper end of the frame is connected with a first stud in a welded mode, and the lower end of the frame is connected with a second stud in a welded mode. A second stud is connected to the lower end face of the frame in a welded mode, the first stud penetrates through the upper cover plate and is connected with a first nut to lock the upper cover plate to the upper end of the frame, and the second stud penetrates through the lower tray and is in threaded connection with a second nut to lock the lower tray to the frame. The first stud and the second stud are welded through the hollow pipe, and are respectively connected with the upper cover plate and the lower tray through the first stud and the second stud, so that the hollow pipe is prevented from being perforated, riveted and sealed, the sealing performance of the inner cavity of the hollow pipe is guaranteed, the operation process is simplified, and the processing efficiency is improved.

This utility model discloses a multifunctional combination table, including a support frame. A roller conveyor platform with automatic lifting and lowering is located in the center of the support frame. A bearing plate and a limit switch that mates with the bottom of the bearing plate are provided on the surface of the roller conveyor platform. Multiple interlocking fixing plates are provided above the periphery of the support frame, and each fixing plate surrounds and mates with the circumferential edge of the bearing plate. Several upwardly protruding limiting parts are provided on the periphery of the top surface of the bearing plate, and these limiting parts surround each other to form a stacking cavity on the top surface of the bearing plate. This utility model features the ability to limit the periphery of circuit boards after stacking and directly transport them without handling, reducing production steps, preventing displacement and misalignment of multi-layer circuit boards during transport, maintaining stable transport of stacked multi-layer circuit boards, and improving production efficiency.

The invention provides block type polyimide resin as well as a preparation method and application thereof. A molecular main chain of the block type polyimide resin comprises hard segment units and soft segment units which are alternately distributed, the soft segment units contain more flexible groups and are low in glass-transition temperature, and the hard segment units contain more rigid conjugated groups and are high in glass-transition temperature. When the temperature rises and the soft segment unit is changed into a high-elastic state, the hard segment unit is still maintained in a glassy state, so that the block type polyimide resin can still maintain certain mechanical strength and enhance the processability while having better melting and bonding capacity. The block type polyimide resin is relatively good in thermal stability, mechanical property and dimensional stability, and has a very good application prospect.