232results about How to "Uniform thickness" patented technology

The invention relates to a crushing machine of raw material for preparing a wood shaving artificial board. The machine comprises a box body, a driving device, an air blower, a crushing device, an auxiliary fixing device and a feeding device, wherein the driving device is installed on the front side of the box body, the air blower is installed at the lower end inside the box body, the crushing device is installed in the middle of the box body, the crushing device is located at the upper end of the air blower, the auxiliary fixing device is installed at the upper end of the box body, and the feeding device is installed at the right end of the box body. The crushing machine of the raw material for preparing the wood shaving artificial board can solve the problems that when existing wood shaving machining equipment is used for cutting treatment, the number of cutting tools is small, the cuttings generated through cutting treatment are large in size, the cutting tools are prone to be damaged and are complicated to replace, the wood material is directly cut and machined without limiting and fixing, severe shaking, splashing and even flying are generated in the wood material machining process, so that potential safety hazards and the like are generated in the operation process are solved.

The invention belongs to the technical field of graphene, and particularly relates to graphene leather capable of realizing temperature-sensitive color development and a preparation method of the graphene leather. As the graphene heating functional layer adopts the high-thixotropic silver paste, the printed circuit pattern is clear in edge, uniform in thickness and extremely high in consistency with the designed pattern; and a clear interface is formed between a silver paste circuit and leather fibers, and improper penetration is avoided. And the circuit resistance value consistency is excellent (the deviation is controlled within + / -5%), so that rapid, uniform and stable planar heating can be realized after the graphene heating layer is connected, and the local overheating hidden danger is perfectly eliminated. According to the present invention, the natural texture and the soft touch feeling of the leather are maintained while the efficient and safe heating performance with the visual color developing function is achieved.

This application belongs to the field of semiconductor processing technology, specifically relating to a backlight reflective layer printing device and its application. This application effectively controls the vibration generated during the printing process by optimizing the mechanical structure and position design of the frame, support plate device, and multi-axis spindle, reducing the deviation between the actual operating path and the planned path of the piezoelectric jet valve. This significantly improves the stability of the piezoelectric jet valve operation and the printing accuracy. Furthermore, this application, by setting up a micro-adjustment device, a positioning system, an inkjet calibration system, and a needle alignment device, and utilizing their coordinated relationship, can precisely correct printing parameters such as the jetting position or jetting volume of the piezoelectric jet valve. Therefore, based on the aforementioned stable printer body structure, the coating quality of the backlight reflective layer obtained by piezoelectric jet printing will be further improved. Thus, the backlight reflective layer prepared using this invention has better thickness uniformity and a better reflective effect.

The utility model discloses a special device for continuously preparing a monovalent ion selective ion exchange membrane. The special device comprises a first unwinding mechanism, a water tank, a first electro-deposition tank, a second electro-deposition tank, a spraying device, a second unwinding mechanism, a drying device, a first winding device, a washing tank and a second winding device which are sequentially arranged from left to right, the first unwinding mechanism is used for unwinding a dry anion exchange membrane; the second unwinding mechanism is used for unwinding the PET film; the first electro-deposition tank is an electro-deposition tank containing polyethyleneimine PEI, and the second electro-deposition tank is an electro-deposition tank containing sulfonic acid group polymers. According to the utility model, the continuous industrial production of the monovalent ion selective anion / cation exchange membrane can be realized, and the production cost and the labor intensity of the monovalent ion selective anion / cation exchange membrane are reduced.

The invention discloses an automatic processing system and method for foamed plastic products with poor ductility, the automatic processing system comprises a machine body (1), a feeding frame (2), a cutting device (3), an oven (4), a discharging device (5), a shaping device (6), a conveying belt (8), a power device (9) and a control device (10), the cutting device is arranged between the feeding frame (2) and the oven (4) and used for cutting coiled materials into sheets with proper sizes, and the shaping device (6) is arranged on the conveying belt (8). The conveying belt (8) sequentially penetrates through the feeding frame (2), the cutting device (3), the oven (4) and the discharging device (5), and the shaping device (6) is arranged on the periphery of the discharging device (5). By the adoption of the system, the five working procedures of feeding, cutting, heating, modeling and blanking are controlled by the control device and completed in a unified mode, the consistency of products is greatly improved, the yield of the products is greatly improved, and the labor cost is greatly saved.

The invention relates to the technical field of copper alloy strip production, in particular to high-strength and high-elasticity copper alloy strip cold rolling equipment with a smoothing function, which comprises two cold rolling mechanisms with sequentially enhanced cold rolling effects and a plurality of cold rolling smoothing mechanisms arranged between the two cold rolling mechanisms, and the smoothing effects of the plurality of cold rolling smoothing mechanisms are sequentially enhanced. The cold rolling flattening mechanism comprises two flattening mechanisms and a pressure control mechanism; the flattening mechanism comprises two flattening structures, the flattening directions of flattening rollers in the two flattening structures on the copper alloy strip are opposite, and the flattening directions of the two flattening structures, located above the copper alloy strip, in the two flattening mechanisms on the copper alloy strip are opposite; the pressure control mechanism is used for controlling the pressure of the leveling mechanism on the copper alloy strip; the multiple cold rolling smoothing mechanisms are arranged, so that it is effectively guaranteed that the cold rolling quality of all positions of the copper alloy strip after cold rolling is uniform, and the cold rolling defects caused by unevenness of the copper alloy strip are reduced.

A flexible circuit board includes a substrate, a plurality of circuit patterns disposed on the substrate, and a protective layer disposed on the circuit patterns, wherein each of the plurality of circuit patterns has a thickness greater than 8 µm and less than or equal to 25 µm, and wherein a thickness deviation between the plurality of circuit patterns is 0.5 µm to 3 µm. When the flexible circuit board is connected with a display panel, the display panel can have high performance and high current can flow through the display panel. The circuit pattern having the features according to the present invention is prevented from being damaged by high current.

The utility model provides a segmented cutting forming tool of tricholoma matsutake. The segmented cutting forming tool of tricholoma matsutake includes: the workbench that sets up the inclined groove, the fixed plate is fixedly installed in the inclined groove, the cutting frame is hinged on the fixed plate, and the bottom rotation of cutting frame is installed with the winding shaft, the protective cover is fixedly installed on the cutting frame and is connected with the winding shaft rotation, the torsional spring is fixedly installed in the protective cover and is connected with the winding shaft, the cutting line one end is coiled on the winding shaft, the movable plate is slidably installed on the cutting frame, and the movable plate is fixedly connected with the other end of cutting line. The segmented cutting forming tool of tricholoma matsutake has the advantages that the efficiency of segmented cutting of tricholoma matsutake can be improved, and the production needs are met.

The invention discloses a polypropylene film suitable for a film lamination method and a preparation method of the polypropylene film. The polypropylene film comprises the following components in parts by weight: 85.6-91.85 parts of polypropylene; 4-7 parts of long-chain branched polypropylene; 4-7 parts of a compatibilizer; 0.05 to 0.1 part of a nucleating agent; and 0.1 to 0.3 part of an antioxidant. Firstly, polypropylene is selected, so that the wettability of a melt to carbon fibers is effectively improved, and the filling defect caused by high viscosity of a traditional material is overcome; and secondly, the compatibilizer is introduced to form firm chemical bonding with the fiber surface, so that the interface bonding strength is greatly enhanced. And finally, by combining a precise extrusion and casting process, the prepared polypropylene film is uniform in thickness, excellent in interface performance and suitable for a film lamination method.

The utility model discloses a display substrate and a display device. The display substrate comprises a substrate; the driving layer is positioned on one side of the substrate and is provided with a plurality of conductive bonding pads; the light absorption layer is located on the side, away from the substrate, of the driving layer, the orthographic projection of the light absorption layer on the substrate and the orthographic projection of the driving layer on the substrate are overlapped, the light absorption layer is provided with a plurality of first via holes corresponding to the plurality of conductive bonding pads, and the orthographic projection of the first via holes on the substrate and the orthographic projection of the corresponding conductive bonding pads on the substrate are overlapped; the light-emitting units are located on the side, away from the substrate, of the light absorption layer and electrically connected with at least part of the conductive bonding pads through the first via holes; the display substrate further comprises a light transmitting layer and a base material layer which are located on the side, away from the substrate, of the light absorbing layer and sequentially arranged in a stacked mode, the light transmitting layer and the base material layer are continuously distributed film layers, and the light transmitting layer is located between the adjacent light emitting units and located on the side, away from the substrate, of the light emitting units. The display substrate has low reflectivity and high transmittance at the same time, and the application scene is wider.

The application relates to the technical field of coating devices, and discloses a fireproof layer coating machine for fireproof glass production and a production process, wherein the fireproof layer coating machine for fireproof glass production comprises an equipment frame, a conveying assembly fixedly installed in the equipment frame, a bottom frame mechanism arranged above the conveying assembly and a coating mechanism, and the inside of the bottom frame mechanism supports a glass sample; a three-stage nested floating structure formed by first, second and third sliding sleeves provides a multi-degree-of-freedom alignment capability for a coating roller; when special-shaped glass passes, the coating roller can passively and adaptively float along the curved surface profile of the special-shaped glass, and always adhere to the surface of the glass; meanwhile, the whole coating head is flexibly hung by a plurality of supporting springs, overall buffering is provided, the problems of accumulation at protruding positions and coating leakage at recessed positions are solved, uniform transfer of fireproof coating on a special-shaped surface is ensured, and finally, a high-quality coating with consistent thickness and continuous integrity is obtained.

This utility model relates to the field of connector structure technology, and particularly to a bent waterproof connector structure. A first insulating seat and a second insulating seat are respectively provided at both ends of the interior of a right-angled shell. A first conductive body is fixed on the first insulating seat; a second conductive body is fixed on the second insulating seat. A first countersunk hole and a second countersunk hole are respectively provided at both ends of the right-angled shell. The first insulating seat is embedded in the first countersunk hole; the second insulating seat is embedded in the second countersunk hole; the first insulating seat is snap-fitted onto the first insulating seat; the first conductive body abuts against the second conductive body. When using this utility model, the first and second insulating seats are connected by a snap-fit ​​mechanism and fixed inside the right-angled shell, improving assembly and disassembly efficiency. Furthermore, the right-angled shell is directly formed by a mold and then combined with the first and second insulating seats, resulting in a uniform thickness and guaranteed strength of the right-angled shell, providing stronger protection for the first and second conductive bodies.

This application provides a skin marking device, belonging to the field of medical auxiliary tool technology. The marking device includes a spring ruler and a support. The spring ruler is mounted on the support, which is mounted on a positioning integrated plate for marking lines on the side of the chest. An elongated hole is provided on the spring ruler, and a skin marking pen is placed inside the elongated hole and moves along the hole to draw lines. Auxiliary lines are provided on the spring ruler, located at both ends of the elongated hole, and are used to check the laser projection lines. This improves both the accuracy and efficiency of the marking. Furthermore, all marked line segments are upright and of uniform thickness, ultimately improving the precision of lesion treatment for patients.

The invention relates to the technical field of battery heat insulation films, in particular to a hot-pressing vulcanization and film covering all-in-one machine for battery heat insulation films, which comprises a base, a processing box is fixedly mounted on the base, a silica gel frame is placed in the processing box, conveying mechanisms are symmetrically arranged on the inner wall of the processing box, and a film covering mechanism is arranged in the processing box. A pre-pressing mechanism and a vulcanizing mechanism are arranged on the outer side of the processing box, and the upper end of the processing box communicates with a rectangular material pipe used for feeding aerogel pieces. The film laminating mechanism is arranged, a horizontal sliding rail and a driving lead screw are used for driving a sliding platform and a silica gel frame to move synchronously, a rectangular pressing head is driven by an electric telescopic rod to complete jacking, cutting and hot-pressing attaching, the silica gel frame does not need to be stopped in the whole process, it can be guaranteed that a film and a window are accurately aligned, and the efficiency bottleneck of a traditional attaching stopping technology is avoided; in addition, cutting and attaching are integrated, the equipment structure is effectively simplified, and the production continuity and the automation degree are improved.

This invention relates to the field of organic coating materials, specifically to the preparation and application method of organic coating materials for improving optical image capture effects. The preparation method includes: S1.1: preparing a composite solvent by mixing deionized water and dimethyl sulfoxide, then adding dimethylsiloxane as an antifoaming agent; S1.2: heating the composite solvent to 95°C and maintaining this temperature; S1.3: adding polyvinyl alcohol powder to the composite solvent to form a mixed solution and stirring until all solutes in the mixed solution are completely dissolved and become transparent, then cooling the mixed solution to room temperature to complete the preparation of the coating material. The application method includes: S2.1: placing the chip (with the front side facing up and the back side facing down) on a glass slide; S2.2: dripping the coating material onto the chip surface, ensuring the liquid amount covers the chip surface; S2.3: baking the chip until the coating material is dry to complete sample preparation. Using this technical solution helps ensure the quality of optical image capture.

The invention discloses an efficient and low-cost production method of thin-specification and high-grade non-oriented silicon steel. The production method comprises the steps that the initial rolling temperature of hot rolling and finish rolling is larger than or equal to 950 DEG C, the finish rolling temperature is (830-880) + / -15 DEG C, and the coiling temperature is (600-650) + / -15 DEG C; acid continuous rolling, wherein a multi-rack acid continuous rolling unit is adopted for acid pickling and multi-pass cold rolling; normalizing a rolled hard board, wherein the normalizing temperature is (850-1000) + / -10 DEG C, and the tension in a normalizing furnace is 8-10N / mm < 2 >; performing single-stand finish cold rolling: performing finish cold rolling by adopting a single-stand rolling mill; and annealing, wherein the annealing temperature is 850-1050 DEG C, and a finished product with the thickness of (0.15-0.50) + / -0.003 mm is obtained. A specific process combination of normalizing after obtaining a rolled hard plate through acid continuous rolling and then carrying out single-rack finish cold rolling is adopted, so that the existing hot-rolled plate normalizing technology is replaced, and the unification of high efficiency, low cost and high quality is achieved.

This invention belongs to the field of fire extinguishing materials and their preparation technology, and provides a fire extinguishing microcapsule and its microfluidic controllable preparation method. The preparation method is characterized by the following steps: (1) preparing fluids of each phase, (2) preparing a dual emulsion using a microfluidic device, (3) collecting and sealing the dual emulsion in a collection container, controlling the axis of the collection container to be horizontal, and controlling the collection container to rotate around its axis for 1 to 15 minutes, applying light to solidify the outer shell of the dual emulsion droplets while maintaining the rotation of the collection container, cleaning, and drying to obtain the final product. The fire extinguishing microcapsule prepared by this method consists of an outer shell and a liquid fluorine-containing fire extinguishing agent encapsulated within the outer shell. The outer shell of the fire extinguishing microcapsule has a uniform thickness, and the eccentricity between the outer shell and the core is less than 0.1. The method of this invention can achieve precise customization of fire extinguishing microcapsules according to the differentiated fire characteristics of different application scenarios, and can improve the concentricity between the core and the outer shell of existing fire extinguishing microcapsules.

This utility model discloses an anti-leakage plating structure for a plastic metallized waveguide antenna, relating to the field of waveguide antenna technology. The anti-leakage plating structure for a plastic metallized waveguide antenna includes a waveguide groove disposed on the waveguide antenna body. Each right-angle section inside the waveguide groove has a guiding surface to direct the flow of electroplating solution. This utility model, by setting guiding surfaces in the form of arcs, slopes, or a combination of both at the right angles inside the waveguide groove, completely eliminates dead zones in the flow of electroplating solution, guiding the plating solution smoothly and comprehensively covering the bottom and corners of the waveguide groove. This effectively solves the plating leakage problem that easily occurs in traditional inner right-angle structures, ensuring that the plating layer is complete and of uniform thickness, thus guaranteeing the stability and reliability of the antenna's core conductivity. Simultaneously, it eliminates the need for multiple electroplating operations and increased plating solution flow rates, simplifying the production process, reducing sensitivity to equipment parameters and debugging difficulty, improving production efficiency, and reducing electroplating costs.

The utility model discloses a processing device for a surface decoration material coated with a wood veneer, which comprises a fixed box, a clamping plate arranged above the fixed box, a coating head arranged above the clamping plate, and a cleaning device arranged at the bottom of the inner wall of the fixed box, the turnover device is mounted on the outer wall of the clamping plate; and the smearing device is mounted on the outer wall of the coating head. The utility model relates to the technical field of wood veneer coating, through the cooperation of the cleaning belt, the driving wheel and the electric sliding block, the driving wheel is used for driving the cleaning belt to rotate to clean the surface of a wood veneer plate, and through the cooperation of the electric sliding rod and the electric sliding block, the whole wood veneer plate is uniform in thickness during cleaning and is directly coated after being cleaned. And cleaning and spraying are integrated, and the problem that the working efficiency is reduced due to the fact that a worker controls multiple devices to treat wood boards is solved.

The application provides a kind of based on substrate photoacoustic tissue hardness research method and application.Black tape or mark sign with strong optical absorption is pasted or drawn on the slide as substrate absorption, then the target object to be detected hardness is pasted on the slide, the marker is imaged using photoacoustic microscopic imaging, and the corresponding elastic information of the target object is analyzed by analyzing the time difference of photoacoustic signal arrival.The application inversely deduces the related elastic information of the target object by the transmission time difference of substrate (strong absorption) photoacoustic signal in different detection target objects, without considering the optical absorption of the target object itself, and is suitable for viscoelasticity research of non-optical absorption or weak absorption material.The application can ensure the uniformity of the thickness of the tissue sample during the slicing process, and the combination of the substrate photoacoustic method makes the measurement result more accurate.The method provided by the application is simple and fast in operation, has wide application prospect, and can be used for obtaining the elastic information of transparent non-detection wavelength optical absorption material and biological tissue.

The application discloses a kind of surface micro-arc oxidation dense ceramic film aluminum alloy and its preparation method.After annealing treatment of aluminum alloy base material, it is in turn treated by oil and grease removal, micro-arc oxidation and drying, and obtained;The conditions of the annealing treatment are as follows: temperature is 200-300 DEG C, time is 50-80 min;The conditions of the micro-arc oxidation are as follows: current density is 8-10 A / dm 2 , time is 15-20 min;The method forms dense ceramic film on the surface of alloy base material through the synergistic effect of annealing and maintenance oxidation, which can effectively improve the comprehensive performance of the material;The aluminum alloy obtained by the technical scheme of the application has excellent corrosion resistance and wear resistance, and solves the corrosion problem of aluminum alloy welding structure in high temperature, high humidity and high salt mist environment.

The application provides a vulcanization forming mold for liquid heat-conducting glue, which is applied to preparation of a heat-conducting gasket for testing in a laboratory environment, and comprises an upper cover, a bottom plate, connecting pieces, elastic pieces and fixing assemblies; wherein the connecting pieces, the elastic pieces and the fixing assemblies are one-to-one corresponding and the number of each is not less than four groups; the connecting pieces penetrate the edge regions of the bottom plate and the upper cover in sequence, and the upper cover moves along the connecting pieces; the elastic pieces are arranged at the sections of the connecting pieces between the bottom plate and the upper cover, and the fixing assemblies are arranged at the sections of the connecting pieces penetrating out of the upper cover. The accurate regulation of the distance between the upper cover and the bottom plate is realized through the cooperative matching of the connecting pieces, the elastic reset pieces and the gasket assemblies, so that the thickness of the fixed liquid heat-conducting glue is adjusted to obtain a heat-conducting gasket with a required uniform thickness, and the effect of preparing a sample piece meeting the testing requirements under the condition of a small sample amount is achieved.

The application discloses a kind of based on gray scale control 3D printing appliance step-by-step solidification method.The method includes: the light-sensitive resin used is prepared, and the light-sensitive resin includes epoxy acrylate component, a certain amount of thermal initiator is added in the light-sensitive resin;The region corresponding to the specified tooth is segmented from the 3D printing model of appliance, and the pattern gray scale of the region corresponding to the specified tooth is modified;The 3D printing model of appliance is sliced, and a plurality of slice patterns with gray scale processing are obtained;Based on a plurality of slice patterns, the gray scale photocuring treatment of each layer of appliance is completed;The appliance after gray scale photocuring treatment is placed in oven to heat for specified time at specified temperature.The application is based on gray scale control, uses photocuring, thermal curing step-by-step solidification scheme in the process of 3D printing appliance, reduces the internal monomer amount while guaranteeing the mechanical property of 3D printing appliance, can effectively reduce the precipitation of monomer, and improve biocompatibility.

The present disclosure relates to a groove-type mold for coating an active material layer on a foil, an electrode manufacturing method for manufacturing an electrode using the groove-type mold, and an electrode manufactured using the groove-type mold. According to the present disclosure, a groove mold is configured to move in a width direction with respect to a foil.

The utility model discloses a novel protection layer structure of a prefabricated vertical component, which relates to the field of concrete structure construction, the cross section of the structure is a component main body of a rectangular cylinder, a main framework support is arranged in the component main body, a groove is arranged on the side surface for accommodating a transverse steel bar, a curved surface reed is arranged at the opening of the groove, and U-shaped hooks inclined inwards are arranged at the two ends of the component main body. Materials of the main framework are selected according to the thickness of a vertical component, and a component body is filled with fine aggregate concrete or high-strength mortar. The working mechanism is as follows: firstly prefabricating the tire membrane, installing the main framework and the hook during cast-in-place, and pouring the filler. The structure can effectively avoid many defects caused by the fact that the protective layer is too thick or too thin, and compared with the prior art, the structure has the remarkable beneficial effects of guaranteeing structural stability, preventing steel bar corrosion, improving construction quality and structural performance and the like.

The invention discloses a calender for cable manufacturing, and relates to the technical field of cable manufacturing, the calender performs oil coating before calendering molding of a cable, the calender comprises a driving device, a molding device, a lubricating device and an adjusting device, and the driving device is connected with the molding device, the lubricating device and the adjusting device; the forming device comprises a calendaring roller and a compensating roller which are sequentially arranged in the strip conveying direction. The compensation roller comprises a roller shaft, the roller shaft is sleeved with a plurality of roller bodies, and the roller shaft is rotationally connected with the roller bodies. The lubricating device comprises an oil distributor and a pressure sensing assembly, the oil distributor faces the upper surface of the strip, and the pressure sensing assembly and the oil distributor are sequentially arranged in the conveying direction of the strip. The two or more calendering rollers are arranged in the vertical direction, the two ends of the calendering roller on the upper layer are connected with the adjusting device, the two ends of the calendering roller on the lower layer are rotationally connected with the driving device, a plurality of differential assemblies are arranged on the roller shaft, the pressure sensing assembly is electrically connected with the differential assemblies, and the differential assemblies drive the roller body to rotate at a variable speed.

The present invention discloses a flow channel assembly for a membrane element, the flow channel assembly comprises: a flow channel element, the flow channel element is concaved inwards to form a plurality of concave structures and is convex outwards to form a plurality of convex structures, and the plurality of concave structures and the plurality of convex structures are distributed in a staggered manner; the flow channel element comprises a water inlet section, a transition section and a water outlet section in the first direction, and the density of the multiple concave structures and the density of the multiple convex structures are gradually increased in sequence along the water inlet section, the transition section and the water outlet section. Through the gradient design that the density of the concave-convex structures of the water inlet section, the transition section and the water outlet section is gradually increased, water flow resistance at the water inlet end is reduced, pressure loss is reduced, and it is guaranteed that water flow enters rapidly and stably; the transition section realizes stable transition of water flow from a low-resistance state to a high-turbulence state and prevents the water flow from impacting the surface of the membrane; the high-density concave-convex structure at the water outlet end generates strong turbulence to effectively scour a concentration polarization layer on the surface of the membrane, low resistance and high turbulence are both considered, the scale deposition risk is reduced, and the service life of the membrane element is prolonged.

This invention discloses a fertilizer coating device, belonging to the field of fertilizer coating technology. It includes a fluidizing chamber with a discharge port at the bottom, providing a coating area; a discharge chamber located at the bottom of the fluidizing chamber, with at least a portion of the fluidizing chamber located inside the discharge chamber; and a spraying element rotatably disposed inside the discharge chamber, comprising a conical surface; a first spray groove on the conical surface; and a second spray groove on the radial outer wall of the spraying element. When the conical surface blocks the discharge port, the spraying element sprays gas into the bottom of the fluidizing chamber through the first spray groove and into the side walls of the fluidizing chamber through the second spray groove. This invention utilizes a double-groove spraying element with a circulating airflow path to construct a three-dimensional fluidization field, combined with multi-nozzle atomization spraying at the top, resulting in uniform coating thickness and no missed spraying. The conical surface also functions as a sealing and guiding element. Precise cylinder lifting and positioning, reliable gear transmission, and a combination of rail groove fitting and elastic sealing structure ensure smooth, uninterrupted movement.

The utility model discloses an automobile die convenient to position, which relates to the technical field of automobile dies and comprises an upper fixing plate, a lower fixing plate and four guide rods, the four guide rods are respectively mounted on the inner side of the upper fixing plate, the lower fixing plate is movably mounted outside the four guide rods, a male die structure is mounted on the inner side of the upper fixing plate, and a female die structure is mounted on the lower side of the lower fixing plate. An up-down adjusting carrying structure is installed outside the lower fixing plate, and a female die structure is movably installed outside the adjusting carrying structure. The male die body is installed in the upper fixing plate through bolts. Through laser positioning, the male die and the female die can be mutually positioned before each injection molding processing, so that accurate butt joint of the male die and the female die is ensured, even after long-time use, accurate positioning of the male die and the female die can be ensured, the thickness of the side wall surface of a produced cavity part is ensured to be uniform, and the production efficiency is improved. And the use requirements of optical parts are met.