161 results about "Injected material" patented technology

The invention belongs to the technical field of semiconductor device packaging, and particularly relates to a ceramic light-emitting semiconductor device mold pressing integrated forming method and a control system. The mold pressing integrated forming method for the ceramic light-emitting semiconductor device comprises the steps that preset values and preset ranges of all mold pressing parameters are obtained, and the mold pressing parameters comprise the mold closing pressure, the mold closing speed, the mold pressing temperature, the injection pressure, the injection speed and the curing time; mold closing is controlled according to the preset values of the mold closing pressure and the mold closing speed; the injection material and the mold are heated according to the preset value of the mold pressing temperature; injecting an injection material into a mold cavity of the mold according to the preset values of the injection pressure and the injection speed; obtaining the difference between the actual mold pressing parameter and the preset range of each mold pressing parameter in the mold pressing process; mold pressing parameters are adjusted in real time in the mold pressing process according to the operation state of the mold pressing equipment and the difference; and controlling the injection material to be gradually cured in the mold. The mold pressing production efficiency can be improved.

A method for forming a base housing of a targeting sight for a firearm includes placing one or more metal components into an injection mold, injecting material in liquid form into the injection mold to contact the one or more metal components, curing the material injected into the injection mold, and removing the cured material from the injection mold. A target sight having a base housing including a metal frame and non-metallic material formed surrounding the metal frame is also described.

The invention relates to the technical field of injection molding devices, in particular to a shoe sole injection molding production device which comprises a movable mold and a fixed mold which can be opened and closed, the movable mold and the fixed mold are provided with exhaust holes and injection holes respectively, and the injection molding device further comprises an injection assembly for injecting materials into the movable mold and the fixed mold after mold closing, and the injection assembly seals the material injection hole in the material injection process. The difference of the air quantity entering the cylinder body in unit time and the air quantity flowing out through the air outlet hole is converted into the displacement of the resistance block relative to the resistance plate, so that the injection molding speed of the injection assembly, the ascending speed of the injection pipe and the joint strength of the gear pair are correspondingly adjusted, and the rotating speed of the lead screw, namely the ascending speed of the knocking ball, is further adjusted; and the rotating speed and torque of the rotating rod, namely the vibration frequency and force transmitted to the knocking ball by utilizing the lever, can correspondingly change the material injection speed and the vibration strength according to the water content of different materials, and ensure that gas is completely exhausted to avoid influencing the product quality.

The invention belongs to the technical field of geological logging, and particularly discloses an automatic logging device which comprises a circulating transportation mechanism, a feeding mechanism, an excitation mechanism, a drilling fluid recycling mechanism, a rock debris cleaning mechanism, an imaging analysis mechanism, a drying and storing mechanism and a screen box cleaning mechanism. The multiple screen boxes circularly move along the closed path so that the feeding mechanism injects materials into the screen boxes, the drilling fluid recycling mechanism recycles drilling fluid in the materials in the screen boxes, the rock debris cleaning mechanism cleans the materials in the screen boxes so that clean rock debris can be reserved in the screen boxes, and the imaging analysis mechanism conducts imaging analysis on the clean rock debris in the screen boxes. The drying and storing mechanism is used for receiving, drying and storing the cleaned rock debris in the screen box, and the screen box cleaning mechanism is used for cleaning the screen box; and the excitation mechanism is used for applying excitation force to the screen box at the drilling fluid recovery mechanism and the rock debris cleaning mechanism. According to the automatic logging device, batch processing of well drilling materials can be conducted continuously.

An injection molding machine includes an injection apparatus that injects an injection material into a mold and a clamping apparatus that clamps the mold. An injection control device that controls injection of the injection material by the injection apparatus is connected to a clamping control device to communicate data therewith, the clamping control device controlling a magnet clamp of the clamping apparatus.

The present invention relates to the field of metal manufacturing, and specifically to a method for improving the comprehensive performance of alloy materials based on the principle of "weaving injection molding". The method comprises the following steps: 1) determining the alloy composition for plasticization and enhancement based on the service requirements of the alloy; 2) preparing an internal "woven" structure of the alloy for enhancing plasticity and a solid frame for forming, and placing the "woven" structure for enhancing plasticity at a predetermined position in the frame; 3) injecting materials for increasing strength and wear resistance into the solid frame; 4) subjecting the filled formed frame structure to a vacuum degassing treatment and welding and sealing; 5) performing hot isostatic pressing to prepare the required alloy material. The present invention enables formed alloys or components to have the characteristics of high strength, high plasticity, high wear resistance and low weight, breaking through the current technical bottleneck of improving the comprehensive performance of materials in the aerospace field, and promoting the further application of metal materials in the aerospace field.

To provide an injector that improves usage efficiency of injecting materials by reducing the amount of injecting materials remaining in used injectors as much as possible, and that does not need to take excessive environmental measures.SOLUTION: In an injector with a container body internally installed for injecting an injection material stored inside into a void created in a concrete structure by being pressed and deformed by energizing force of an elastic material 5, the container body 3 is composed of a regular polygonal top wall 32, a bottom wall 33 of the same shape as the top wall 32 with an opening 31 in the center, and a cylindrical wall 34 with both end openings closed by the top wall 32 and the bottom wall 33. In the cylindrical wall 34, a plurality of mountain-shaped main convex strips 341 extending from each corner of the regular polygon of the top wall 32 to each corner of the regular polygon of the bottom wall 33 at a twisted position in a circumferential direction, substantially parallel to each other, and inclined in the same direction, a plurality of mountain-shaped sub-convex strips 342 crossing a space extending between adjacent main convex strips 341 to divide the space into a plurality of quadrilateral regions R, and a mountain-shaped concave strip 343 extending diagonally in the same direction as the main convex strip 341 from one vertex of the quadrilateral to the other vertex of the quadrilateral respectively within each region R of the quadrilateral.SELECTED DRAWING: Figure 3

The invention belongs to the field of plastic runways, and particularly relates to a plastic runway material and a blending device thereof.The plastic runway material comprises a blending tank and a finished product tank, a transfer pipe is connected between the top of the blending tank and the top of the finished product tank, the bottom of the finished product tank is connected with a discharging pump, and the output end of the discharging pump is connected with a discharging pipe; a stirring and mixing assembly is arranged on the inner side of the blending tank, the stirring and mixing assembly is used for mixing and stirring materials in the blending tank, a plurality of raw material boxes are arranged on one side of the blending tank, and transfer assemblies are arranged on the inner sides of the raw material boxes; through the arrangement, stirred finished products can be continuously prepared, once the equipment starts to continuously prepare the finished products, all that is needed is to continuously inject materials into the raw material box, meanwhile, the blending tank is always in a stirring state, raw materials on the inner side cannot be solidified, and under the action of gravity, the raw materials cannot be solidified. And a stirred finished product can be ensured to pass through the transfer pipe above.

The invention belongs to the technical field of reaction kettles, and discloses a high-efficiency polymerization reaction kettle for producing a polycarboxylic acid water reducer, the high-efficiency polymerization reaction kettle comprises a reaction kettle body, a stirring plate I and a stirring plate II, a composite rotating part is rotatably mounted in the reaction kettle body, the stirring plate I and the stirring plate II are fixedly connected to the outer surface of the composite rotating part, and the stirring plate I and the stirring plate II are fixedly connected to the outer surface of the composite rotating part. A midway injection mechanism is arranged in the composite rotating part, the composite rotating part rotates around the midway injection mechanism in the composite rotating part, and the midway injection mechanism is used for injecting the material liquid into the mixed liquid in the stirring reaction period. According to the invention, the key additive is directly sprayed to the specified depth in the reaction liquid instead of being only added on the liquid surface, so that the problem of over-high local concentration is avoided, the material can be instantly and uniformly dispersed in the reaction system, the stability and controllability of the reaction are greatly improved, the high consistency of the product performance is ensured, and the product quality is improved. Accurate, multi-point and deep injection of materials in the reaction process is achieved.

The utility model relates to the technical field of injection molds, in particular to a multicolor injection mold, which is provided with a rear mold assembly, a first seat stand and a second seat stand, the first seat stand and the second seat stand can respectively inject materials with different colors to the rear mold assembly, and the rear mold assembly is provided with a sliding mechanism and a rotating mechanism. The rear mold assembly can automatically switch working positions in different injection molding stages, the rear mold assembly can be close to the first seat stand or the second seat stand according to injection molding requirements, human intervention and semi-finished product transfer time can be shortened, and the problem that the same product can be subjected to injection molding through materials of multiple colors is effectively solved; and a semi-finished product needs to be transferred from one injection mold to another injection mold for continuous processing, so that the production cost is increased, and the production efficiency is reduced.

This invention provides an injectable polyurethane material, its preparation method, and its applications, belonging to the field of injectable materials. The injectable polyurethane material has a cross-linked polyurethane structure and hydrophilicity. It is formed by polymerizing a polyethylene glycol-diisocyanate prepolymer, a cross-linking agent, and a chain extender. The cross-linking agent has a structure of Formula 1, and the chain extender has a structure of Formula 2. Specifically, this invention can employ a cross-linking agent containing a Schiff base and a chain extender with catechol as a side group, introducing both into a polyurethane network to form the injectable polyurethane material. In this invention, this cross-linked hydrophilic polyurethane can utilize the pH-responsiveness of the Schiff base to achieve controlled injection through secondary processing; moreover, it has good mechanical properties, facilitating its application.

The utility model relates to a single-bicolor EVA injection mechanism, which comprises an injection device and a mold closing device, the injection device comprises an injection base, a rotating device is arranged on the injection base, a bicolor injection component is arranged on the rotating device, the mold closing device comprises a mold closing frame, an upper mold and a lower mold are arranged on the mold closing frame, and the upper mold and the lower mold are arranged on the mold closing frame. And a detachable partition template is arranged between the upper die and the lower die. According to the single-color and double-color EVA injection mechanism, two injection guns are adopted for injecting materials at the same time, so that materials with two colors are molded at the same time, and the stability of material combination can be guaranteed; due to the design of the lifting mechanism, the influence of translation of the injection gun on the mold station is avoided; in the forming process, due to the fact that the partition template is adopted, materials in two colors can be formed in a separated mode. And after the color separation plate is pulled away, the formed materials with two colors are combined again, color mixing can be avoided, the structural design is reasonable, and the production efficiency is high.

The invention belongs to the technical field of conveying, and particularly relates to material carrying, in particular to a box-type graphitization furnace high-temperature powder sintering and conveying device and a working method, and the box-type graphitization furnace high-temperature powder sintering and conveying device comprises a feeding mechanism, a discharging mechanism and a bearing mechanism; the discharging mechanism is arranged at the bottom of the feeding mechanism, and the discharging mechanism is located above the bearing mechanism. A plurality of sintering grooves are formed in the bearing mechanism; the discharging mechanism is suitable for injecting materials in the feeding mechanism into the sintering groove, a discharging opening of the discharging mechanism stretches into the materials in the sintering groove when the materials are injected, the discharging mechanism is suitable for adjusting the discharging speed according to the shape of the inner wall of the sintering groove, and therefore the effect that the powder injection speed is reduced when the internal volume of the sintering groove becomes smaller is achieved. And powder is prevented from overflowing the sintering groove under the same injection time.

The utility model relates to the technical field of laminating machines, in particular to a material injection device of an automatic laminating machine, which comprises a frame, a movable platform, a plurality of connecting plates, a drilling structure, a material injection gun and a material blocking structure. The second driving mechanism drives the drilling structure, the injection gun and the blocking structure which are located on the connecting plate to move towards a foaming plate located in the laminating machine, the first driving mechanism drives the mounting plate to move, the drilling structure, the injection gun and the blocking structure are driven to move transversely, and after the drilling mechanism drills the foaming plate, the foaming plate is blocked by the injection gun and the blocking structure. The material injection gun injects materials into the drilled material injection hole, then the material blocking structure inserts the material blocking rod into the material injection hole, the automatic process from drilling, material injection to material blocking is completed, compared with a mechanical arm and manual work, the cost of the structure is low, the automatic process from drilling, material injection to material blocking can be achieved, the material injection efficiency is improved, and the labor intensity of workers is lowered. The problems that the cost of traditional semi-automation and the cost of completely adopting manpower are high, automation cannot be achieved, and the efficiency is low are solved.

The utility model relates to a multi-pass distributing device for a B1-level polyurethane thermal insulation board intermittent production line, which is applied to the field of thermal insulation board production and comprises a box body, a plurality of accommodating holes are formed in the inner bottom wall of the box body, sealing rings are fixedly connected to the inner walls of the accommodating holes, and a plurality of multi-pass pipes corresponding to the sealing rings are arranged in the box body. The lower ends of the multi-way pipes penetrate through the sealing ring and extend to the lower end of the box body, the lower ends of the outer rings of the multi-way pipes are fixedly sleeved with baffles, the lower ends of the multiple multi-way pipes are jointly and fixedly connected with a flow dividing pipe, the outer ring of the flow dividing pipe is fixedly sleeved with a collecting pipe, the inner bottom wall of the collecting pipe is fixedly connected with a guide-in pipe, and the upper end of the guide-in pipe fixedly penetrates into the flow dividing pipe. A traditional method that one plate only uses one gun barrel for injection is changed, the multiple multi-way pipes are arranged, the multiple multi-way pipes inject materials into a mold cavity at the same time, polyurethane liquid is evenly sprayed on a forming plate, and therefore the density of the heat insulation plate is reduced, and the strength of the heat insulation plate is improved.

An injection molding device that performs injection molding of a molded article using a molding die is provided. The injection molding device includes an injection unit that injects material into the molding die and a molding die opening and closing unit to which the molding die is attached and that opens and closes the molding die. The injection unit includes an injection section including an injection control section that controls injection of the material and a nozzle section that injects the material, a movement section that moves the injection unit with respect to the molding die opening and closing unit, and a holding plate that is connected to the injection section and that holds the injection section. The movement section includes a support section that supports the holding plate, and the holding plate is configured to slide with respect to the support section.

The present invention discloses a flexible deformable heat flux sensor, comprising a flexible substrate, a pin group is arranged at one end of the flexible substrate, a metal measuring point group is arranged on the surface of the flexible substrate away from the pin group, the pin group is electrically connected to the metal measuring point group through a wire arranged in the flexible substrate; wherein two adjacent pins in the pin group are connected in series with a metal measuring point in the metal measuring point group through a wire, and its preparation device comprises an injection molding mold and a wire clamping assembly arranged on one side of the injection molding mold; a cavity is arranged inside the injection molding mold, and a metal measuring point molding seat is arranged near the end of the cavity away from the wire clamping assembly; ports for injecting material into the cavity are arranged at the top and bottom of the injection molding mold; and the wire clamping assembly is used to clamp the wire placed in the cavity. The present invention solves the problem of measuring the surface heat flux rate of complex surface models. The heat flux sensor has a flexible substrate, which not only makes the installation of the sensor more convenient, and the measuring end face and the model surface completely overlap, but also increases the density of the measuring points, and more clearly obtains the heat flux distribution of the model surface.

The utility model provides a material injection device for preparing a soft porcelain plate, which comprises a first track, and a transport vehicle and a material injection assembly which are arranged on the first track, the transport vehicle can freely move along the first track, the material injection assembly comprises a bracket and a material injector, the bracket is erected above the first track, the transport vehicle can pass through the bottom of the bracket, and the material injector is arranged on the first track. A discharge hole of the material injector is over against the first track; the device further comprises a bearing plate matched with the transport vehicle. According to the utility model, the first track is arranged, the first track is provided with the transport vehicle and the material injection assembly, the bearing plate with the soft porcelain template can be flatly placed on the transport vehicle, then when the bearing plate is moved to the bottom of the material injection assembly, the material injection assembly can be used for injecting materials to the soft porcelain template below, and after material injection is finished, the transport vehicle is moved to the tail end of the first track; in this way, work similar to that of a conveying belt is achieved through the first track, and compared with manual carrying, the production efficiency is obviously improved.

The application belongs to the technical field of injection molding machines, and particularly relates to a multi-gating injection mechanism capable of accurately controlling the material quantity of the same mold cavity, which comprises an injection seat, a material injection cavity provided in the injection seat for liquid material to enter, a plurality of material distribution cavities provided in the injection seat and respectively communicated with the material injection cavity, a plurality of injection guns provided on the injection seat and respectively connected with the plurality of material distribution cavities, and an injection assembly communicated with the material injection cavity and used for supplying material to the material injection cavity. By limiting the structure of the injection mechanism, the liquid material entering the material injection cavity is distributed through the cooperation of the plurality of material distribution cavities and the plurality of injection guns, and is respectively injected into the relative positions in the mold cavity through the plurality of injection guns, so that the injection speed of the liquid material in the mold can be effectively improved, and the plurality of injection guns simultaneously inject material into the plurality of positions of the mold cavity, thereby effectively reducing the time of diffusion and flow of the liquid material and improving the production efficiency.

The invention relates to the technical field of molds, in particular to an oil tank front decorating part mold which comprises an upper mold body and a lower mold body, mold cavities are formed in the upper mold body and the lower mold body, the mold cavities in the upper mold body and the lower mold body are correspondingly arranged and communicate with each other, an excess material cavity is formed in the middle of each mold cavity, and the excess material cavity is formed between the two mold cavities. The excess material cavity is communicated with the mold cavities on the two sides, the upper mold is provided with an injection molding pipe corresponding to the excess material cavity, the bottom of the injection molding pipe is fixedly provided with a cutting plate, the cutting plate is arranged corresponding to the position and shape of the excess material cavity, the injection molding pipe is slidably connected with the upper mold, and the injection molding pipe can drive the cutting plate to move towards the excess material cavity. And a cutting blade is arranged at the edge of the cutting plate. The die cavities of the upper die and the lower die are correspondingly communicated and can be used for forming the oil tank front decorating part, and the excess material cavity is formed between the two die cavities and communicated with the die cavities so that excess materials can be conveniently collected. The injection molding pipe is used for injecting materials and can drive the cutting plate to move towards the excess material cavity, the cutting blade on the edge of the cutting plate can cut the materials between the excess material cavity and the mold cavity at proper time, the excess materials in the excess material cavity can be cut after injection molding is completed and waiting for forming, and secondary cutting does not need to be carried out after the excess materials are taken out. And the machining efficiency and the overall production efficiency can be improved to a certain extent.

The utility model relates to the technical field of plate spraying, and discloses a plate spraying device for ultraviolet curing coating, which comprises a recycling box, a bearing component is arranged at the top of the recycling box, a fixed vertical plate is arranged at the top of the bearing component, a fixed transverse plate is arranged at the top of the fixed vertical plate, and a fixed plate is arranged at the top of the fixed transverse plate. Mounting plates are arranged on the left side and the right side of the top of the bearing assembly correspondingly, and a coating box is arranged on the top of the fixed transverse plate. According to the plate spraying device for the ultraviolet curing coating, the liquid level observation assembly is arranged, when a liquid injection pipe injects materials, the liquid level rises, at the moment, a floating ball can drive a first extension rod, a second extension rod, a rectangular plate and an indicating needle plate to move upwards, and when the liquid level falls, the floating ball can drive the extending indicating needle plate to move downwards; at the moment, a worker can observe the height of the coating liquid level in the coating box in time through the scale line plate, the practicability of the device is further improved, and the worker can use the device conveniently.

1. The name of the design product: die casting machine nozzle (SZ-002). 2. The use of the design product: used for injecting material into the die cavity of the die casting machine. 3. The design points of the design product: in the shape of the product. 4. The picture or photo that best shows the design points: Design 1 perspective view 1. 5. Design 1 is designated as the basic design.

A method for manufacturing a synthetic non-perforated drainable material is disclosed herein. Generally, the method includes injecting a coating material with air, applying the air-injected coating material to the first side of the material, and curing the air-injected material such that it adheres. Once cured, the material has a highly efficient drainage rate that remains consistent throughout the life of the material.

The invention relates to the technical field of concrete pouring, in particular to a quantitative filling device which comprises a base plate, an injection mold and spring columns, the spring columns are installed at the four corners of the bottom of the injection mold and fixedly connected with the base plate, and a plurality of injection openings distributed at equal intervals are formed in one end of the injection mold; a separation linkage mechanism used for separating injected materials to quantitatively control the materials is arranged on the inner side of the injection mold and comprises a plurality of separation sliding plates distributed at equal intervals and two supporting vertical rods, the two ends of each separation sliding plate penetrate through the injection mold and are in sliding connection, and one end of each separation sliding plate is located at the bottom of the injection port. The purpose of realizing automatic control of the device while realizing quantitative material is achieved, through accurate measurement and control of the material quality, the consistent filling quantity of each time can be ensured, and the situation of non-uniform concrete filling is avoided, so that the stability of the production process and the consistency of the product quality are improved, and through automatic quantitative control, the production efficiency is improved, and the production cost is reduced. And the production efficiency can be improved.

The invention relates to a system (10) for injecting a material into a mold. The mold internally defines filling cavities arranged to form a grid structure created by the intersection of longitudinal cavities (L1-L7) and transverse cavities intended to be filled with an injection material to form, respectively, intersecting spars with rows of transverse blades of a thrust reverser grid of an aircraft engine. The injection system comprises a plurality of injection points for a material opening into an upper zone (Zs) of the mold cavities corresponding to one of the two opposite faces of the grid. The injection points comprise, on the one hand, a first set of points (Pi1-Pi4) arranged in a front portion (Pav) of the mold and, on the other hand, a second set of points (Pi5-Pi8) arranged in a rear portion (Par) of the mold. Figure for the abstract: Fig. 2

To provide a nozzle body which jets slurry and enables processing to be performed uniformly in an opening direction even when the processing is performed with its jet port directed in any direction.SOLUTION: A nozzle body includes: a slurry storage chamber in which slurry in which abrasive grains and a liquid are mixed is introduced and temporarily stored; an air storage chamber into which pressurized air is introduced and temporarily stored; and a passageway which communicates with the slurry storage chamber and the air storage chamber and injects from an injection port an injection material in which the slurry and the pressurized air are mixed. The slurry storage chamber includes a slurry introduction port for introducing the slurry. The slurry introduction port includes swirling means for swirling the slurry.SELECTED DRAWING: Figure 3

The utility model provides an improved extruded polystyrene board extrusion mold which comprises a lower mold body, and a containing cavity is formed in the lower mold body. Limiting columns are welded to the periphery of the upper end of the lower mold. An upper mold is arranged on the limiting column; penetration holes are formed in the periphery of the interior of the upper mold and connected with the limiting columns in a penetrating mode. A vibration dispersion seat structure is supported at the bottom of the lower mold; a limiting column structure is arranged on the inner side of the vibration dispersion seat structure, and the vibration dispersion seat structure is characterized by comprising a bottom plate, and side columns are welded to the periphery of the upper end of the bottom plate; the middle of the upper end of the bottom plate is in bolted connection with a rubber frame; supporting springs are welded to the upper ends of the side columns. A movable working plate structure is supported by the upper ends of the supporting springs. Through the arrangement of the vibration dispersion seat structure, when the lower die vibrates, the injected materials are dispersed, so that the situation that the working efficiency is influenced due to the fact that the concentrated materials need to be extruded and dispersed is avoided.

A method for forming a base housing of a targeting sight for a firearm includes placing one or more metal components into an injection mold, injecting material in liquid form into the injection mold to contact the one or more metal components, curing the material injected into the injection mold, and removing the cured material from the injection mold. A target sight having a base housing including a metal frame and non-metallic material formed surrounding the metal frame is also described.

The present invention relates to a method for the rehabilitation and / or stabilization of a track bed (1), wherein railway rails (3a, 3b) are attached to sleepers (2) and the sleepers (2) are arranged in or on the track bed (1) and stones, ballast (8) or the like are located in the track bed (1), wherein the rehabilitation and / or repair is carried out in the track bed (1) itself without detaching the sleepers (2), the rails (3a, 3b), and / or without removing the sleepers (2) from the track bed (1), wherein the sleepers (2) have a central section and two end sections, and the central section is located between the two end sections, wherein a continuous opening (4) is produced through the sleeper (2) in the region of the first end section and / or the second end section and / or the central section, preferably the opening (4) is produced by a bore, wherein a material, preferably an injection resin, is injected into the opening (4) or openings.which solidifies or hardens after application, wherein the injection resin, when injected through the opening (4) in the sleeper (2), enters the area below the sleeper (2) in the track bed (1) and there wets the track bed material, namely stones, ballast (8) or the like, and fills gaps and / or cavities in the track bed (1), and after the injection resin has solidified, the area of ​​the track bed (1) that is wetted by the injection material, or whose gaps and / or cavities are filled, forms a compact body (15) on which the sleeper (2) rests.

The utility model discloses aluminum silane vitrification agent production equipment, which relates to the technical field of aluminum silane vitrification agent production and comprises a base, a fixing frame is fixedly mounted on one side of the top surface of the base, a mixing and stirring barrel is sleeved in the fixing frame and the base, a positioning frame is fixedly mounted on the top surface of the fixing frame and positioned on one side of the fixing frame, and the positioning frame is positioned on the other side of the fixing frame. A positioning frame is arranged in the mixing and stirring barrel, a filter hopper is clamped in the top surface of the positioning frame, and a material injection pipe is fixedly mounted in the middle of the bottom surface of the filter hopper, when materials for preparing the vitrification agent need to be injected into the mixing and stirring barrel for mixing and stirring, the materials are firstly injected into the filter hopper, and impurities contained in the injected materials are intercepted through a filter screen mounted in the filter hopper; the filtered materials are injected into the mixing and stirring barrel through the material injection pipe for mixing treatment, and through the operation, the materials for preparing the vitrification agent are filtered, impurities contained in the materials for preparing the vitrification agent are prevented from entering the mixing and stirring barrel, and the purity of the vitrification agent is improved.