959 results about "Release agent" patented technology

The invention belongs to the technical field of material processing, and discloses a magnesium alloy casting semi-solid injection molding method and application, and the method comprises the following steps: checking and adjusting a semi-solid injection machine, a casting mold and other equipment to be in a normal state, and placing magnesium alloy particles in a designated area of a hopper; putting a long nozzle of the semi-solid injection platform into the center of a mold sprue; setting the temperature of each section of a mold temperature controller, a charging barrel and a nozzle; preserving heat for a period of time after the temperature of the charging barrel reaches a set value, so that the temperature of materials in the charging barrel is uniform; setting the injection rate, the cooling time, the material return distance and the melt pressure of the semi-solid injection machine; and after a release agent is quantitatively sprayed to the mold, a semi-solid injection program is started, and a casting is obtained. The AS41B magnesium alloy particles with good heat resistance are adopted as the raw material, the semi-solid injection molding method is combined, a melting furnace is not needed, only heating to the semi-solid state is needed, the melt temperature is low, energy is saved, the service life of a mold is prolonged, protective gas is not needed, and the manufactured casting is good in mechanical property and high in heat resistance.

The application belongs to the technical field of injection molding machines, and particularly relates to a vehicle lamp shell integrated injection molding and polishing mold and a variable temperature forming process, which comprises a front mold, a rear mold and a heating module. A forming cavity is formed in the rear mold. A spraying module is arranged in the cavity in a retractable manner. The spraying module is used for spraying a release agent to the inner wall of the cavity. The heating module is arranged in the rear mold. The heating module preheats the rear mold and evaporates the moisture of the release agent sprayed on the inner wall of the cavity. The mold further comprises a ejector pin module. The ejector pin module comprises an ejector pin plate and a plurality of ejector pins connected to the ejector pin plate. The plurality of ejector pins penetrate through the through holes on the rear mold and lead to the cavity. The spraying module is arranged on the front end side wall of the ejector pin. The spraying module sprays the release agent to the inner wall of the cavity when the spraying module retracts into the through hole along with the ejector pin. The mold can avoid the first injection material and the second injection material from being unable to be well bonded due to improper spraying of the release agent, and improve the stability of the injection molded product.

The invention provides a long-acting dripping antifogging master batch as well as a preparation method and application thereof, and the long-acting dripping antifogging master batch comprises the following components in parts by weight: 40-90 parts of matrix resin, 10-40 parts of a dripping agent, 1-20 parts of metal salt and 1-20 parts of a high-molecular-weight slow release agent. According to the long-acting dripping antifogging master batch disclosed by the invention, the dripping agent, the metal salt and the high-molecular-weight slow-release agent are compounded, and the long-acting dripping antifogging master batch is used for preparing a thin film material, so that the dripping lasting period of the thin film material can be effectively prolonged, and meanwhile, the thin film has relatively high light transmittance.

The invention relates to the technical field of high polymer materials, in particular to self-cleaning organic silicon foam with a micro-nano structure and a super-hydrophobic surface and a preparation method of the self-cleaning organic silicon foam. The surface structure of the release film is customized through one-step molding transfer printing, and a release agent of the release film contains a super-hydrophobic modified organic silicon light diffusion agent. The light diffusant is mainly silicon dioxide or organic silicon resin microspheres modified by surface long-chain silane. The surface structure of the customized release film is an inverted pyramid-shaped micro-nano structure. The organic silicon foam obtained according to the process has the surface micro-nano structure, super-hydrophobic and self-cleaning functions, and is particularly suitable for manufacturing daily and industrial pads such as mouse pads, table mats and placemats.

The invention relates to the technical field of automatic spraying, in particular to a mechanical arm control method for release agent spraying, which comprises the following steps: acquiring a three-dimensional point cloud of a mold and segmenting the three-dimensional point cloud into different characteristic areas; generating an initial spraying track based on the feature region and a process database; in the spraying process, surface state parameters of all areas are monitored in real time, the real-time spraying quality deviation coefficient is calculated, the spraying quality of the current point position is judged accordingly, and mechanical arm movement or spraying parameters are compensated for unqualified point positions in real time; after spraying of a single area is completed, a uniformity variable coefficient is calculated based on film thickness distribution of the area, stage quality is judged, and a stage optimization strategy is implemented in subsequent spraying of similar areas for unqualified areas; and after spraying of the whole mold is completed, the overall spraying quality evaluation value is calculated, the overall quality is judged, and overall parameter optimization is conducted on the unqualified situation in the next spraying period. According to the invention, multi-level closed-loop optimization control from point location, area to global situation is realized.

The utility model discloses mold release agent spraying equipment and a prefabricated part production line. The mold release agent spraying equipment is used for spraying a mold release agent to a mold for prefabricated part production. Comprising a bearing structure, a bearing seat, a walking driving unit, an industrial mechanical arm and a spraying device, and a walking guide rail extending in the length direction of a bearing beam is arranged on the bearing beam of the bearing structure; the bearing seat is connected with the walking guide rail and can move along the walking guide rail; the walking driving unit is in transmission connection with the bearing seat, and the walking driving unit is configured to drive the bearing seat to walk along the walking guide rail; the mounting end of the industrial mechanical arm is fixedly connected with the lower part of the bearing seat, and a mold spraying area is arranged below the industrial mechanical arm; the spraying device comprises spraying guns and a release agent supply unit, at least one spraying gun is installed at the cantilever end of the industrial mechanical arm, and the release agent supply unit is connected with the spraying guns through pipelines and can provide release agents for the spraying guns. The mold spraying device can meet spraying of molds with high spraying difficulty, and has the beneficial effects of being good in universality and the like.

The invention relates to the technical field of magnesium-aluminum alloy casting, and discloses a magnesium-aluminum alloy high-pressure casting rapid cooling and defect inhibition process which comprises the following steps: S1, mold preheating; s2, nitrogen replacement is conducted; S3, a release agent is sprayed to the interior of the cavity under the inert atmosphere; s4, magnesium-aluminum alloy molten metal with the temperature ranging from 650 DEG C to 700 DEG C is pressed into the cavity at the injection specific pressure ranging from 80 MPa to 120 MPa and the mold filling speed ranging from 5 m / s to 8 m / s; s5, a subarea cooling structure is designed based on the wall thickness difference of different areas of the casting, gradient cooling is conducted on the casting, in the cooling process, the hot train risk is judged by calculating a thermal stress value, and cooling medium parameters are regulated and controlled by calculating a cooling rate value; and S6, the casting is taken out. Traditional cooling is changed into a partition gradient type, defects are controlled according to a formula and AI, double-pipeline nitrogen is used for preventing oxidation, cost is reduced, and technical practicability and innovation are improved.

The high-performance release agent production equipment comprises a reaction cavity shell and a temperature sensing probe, a sealing cover plate is fixed to the outer wall of the top of the reaction cavity shell through a hasp lock, and a gas path rotating connector is fixed to the axis position of the top of the sealing cover plate in a penetrating mode; a hollow stirring rod is rotationally mounted at the axis of the gas path rotating joint through a deep groove ball supporting bearing, and bionic elastic turbulent flow blades which are distributed at equal intervals are in threaded connection with the outer wall of the middle of the hollow stirring rod. Through cooperation of the storage bin, the spiral conveying blade and the first servo motor, the raw material conveying speed can be accurately adjusted, the situation of blockage or low efficiency is avoided, the second servo motor drives the grinding base to rotate at a high speed through meshing transmission of the first bevel gear and the second bevel gear, and the grinding efficiency is improved. An electric telescopic rod is matched to adjust a grinding disc to move left and right for further grinding, blocky raw materials can be fully crushed and ground, raw material particles are uniform and fine, and a good foundation is provided for subsequent reaction.

The invention relates to the technical field of furniture protective films, in particular to a self-adhesive furniture skin-touch protective film which sequentially comprises an organic silicon release film from bottom to top, the organic silicon release film comprises a base material and a coating, the base material is a transparent polyethylene glycol terephthalate film with the thickness of 80-120 micrometers, and the coating is a transparent polyethylene glycol terephthalate film with the thickness of 80-120 micrometers. The coating is an organic silicon release agent coated on the base material, and the coating weight of the organic silicon release agent is 0.8-1.2 g / m; the pressure-sensitive adhesive layer comprises 60 to 70 weight percent of a compound system of a saturated hydrocarbon block copolymer and a hydrogenated styrene isoprene styrene block copolymer; 25 to 35 wt% of hydrogenated C9 petroleum resin; 3 to 5 weight percent of temperature-sensitive microcapsules; and 2 to 5 wt% of naphthenic oil. According to the invention, through the cooperation of innovative multi-layer structures, the product can maintain excellent comprehensive performance under different parameter configurations, and multiple requirements of the furniture protective film on easy construction, high transparency, strong protection, good touch feeling and aging resistance are met.

To provide a toner that achieves both low-temperature fixation and storage stability in high-temperature environments. [Solution] A toner containing a graft polymer resin including a polyolefin resin and a styrene-based resin, a polyester resin, and a release agent, wherein when the toner heated to 50°C is measured by FTIR-ATR (total internal reflection absorption infrared spectroscopy), the peak intensity derived from the release agent is set to Wk-50 and the peak intensity derived from the polyester resin is set to RK-50; when the toner heated to 70°C is measured by FTIR-ATR, the peak intensity derived from the release agent is set to Wk-70 and the peak intensity derived from the polyester resin is set to RK-70; and when the toner heated to 90°C is measured by FTIR-ATR, the peak intensity derived from the release agent is set to Wk-90 and the peak intensity derived from the polyester resin is set to RK-90, the toner satisfies the following formulas (1) and (2). (Wk-70 / RK-70) / (Wk-50 / RK-50)≦1.1···(1) 1.5≦(Wk-90 / RK-90) / (Wk-50 / RK-50) (2)

The utility model relates to the technical field of spraying, in particular to a trace release agent spraying device for automobile accessories. According to the technical scheme, the device comprises a fixing ring, a rotating pipe is rotationally installed in the fixing ring, a Laval pipe is fixedly connected to the bottom end of the rotating pipe, a rotating air pipe is fixedly installed in the rotating pipe, turbine blades are fixedly installed in the rotating air pipe, and an air nozzle is fixedly connected to the bottom end of the rotating air pipe; the air nozzle is located in the Laval pipe, an annular flow channel is formed between the outer surface of the air nozzle and the inner wall of the Laval pipe, a baffle is fixedly installed at the position, close to the bottom end, in the Laval pipe, and the top end of the rotating air pipe is rotationally connected with an air inlet pipe through a rotating connector. According to the mold release agent spraying device, a trace amount of mold release agent can be quickly and uniformly sprayed on the surface of an automobile part mold, the use amount of the mold release agent is reduced, the production cost and the sewage amount are reduced, and meanwhile the spraying efficiency is improved.

This invention belongs to the field of glass microsphere preparation technology, and provides a release agent for fire polishing of white glass microspheres used in the vitrification of radioactive nuclear waste, and its preparation method. The release agent comprises the following components by mass fraction: 10-70% alumina powder, 20-90% quartz sand, 1-3% cerium oxide powder, and 1-6% white flour. By introducing white flour, the release agent of this invention can both protect the color of the white beads themselves and prevent the formation of twins or triplets during the fire polishing process. It also prevents the introduction of major chemical elements into the surface of the glass beads during the release process, thus increasing the compositional stability of the glass beads.

To provide a toner that offers excellent low-temperature fixation while simultaneously achieving both filming resistance in high-temperature, high-humidity environments and release properties during fixation. [Solution] A toner containing toner particles that include a polyester resin, an aromatic petroleum resin, and a mold release agent, A toner characterized in that, when the cross-section of the toner particles is observed with a scanning electron microscope, the domains of the release agent satisfy the following requirements. (Requirements) Each toner particle contains, on average, 2 to 8 release agent domains with a major axis of 400 nm or more and an aspect ratio of 0.7 or less calculated by the following formula (1). Aspect ratio = (Short diameter of release agent domain) / (Long diameter of release agent domain) Equation (1)

This invention discloses a method and system for purifying and treating release agents, belonging to the field of release agent purification and treatment. The treatment method is as follows: S1, raw release agent wastewater is introduced into a treatment tank for hydraulic cavitation treatment, while ozone is simultaneously introduced. Floating oil, waste wax, and solid particulate matter in the wastewater float to the surface of the treatment tank and overflow into a scum tank; S2, after cavitation treatment, when there is very little scum on the surface of the treatment tank, the treated liquid in the treatment tank is introduced into a media filter for further filtration. The filtered clean liquid is then transported to a supply tank; S3, when the media packing adsorbs a thick wax layer, the pressure in the filter tank reaches a threshold. Water from the circulating water tank is introduced into the filter tank to backwash the wax layer. The water containing wax after backwashing enters the circulating water tank; S4, when the wax content in the circulating water in the circulating water tank reaches a threshold, a low-temperature steel roller is used to cool the water, causing wax to precipitate onto the steel roller. The wax is scraped off and collected, and the water is reused. This invention uses hydraulic cavitation to break out and remove oil and wax from waste liquid, and further removes residual waste wax from the treated liquid through media filtration, ensuring the cleanliness of the recycled mold release agent liquid.

This utility model relates to the field of aluminum ingot production technology, and provides an automatic release agent spraying device for an aluminum ingot production line. The device includes a base plate, a storage tank for storing release agent fixedly installed on the top of the base plate, and a mixing tank fixedly installed on the top of the storage tank. A water tank is fixedly installed on the top of the base plate, a bracket is fixedly installed on the water tank, and a discharge pipe is fixedly installed on the bracket. A solenoid valve is installed on the discharge pipe, and a hopper for dispensing aluminum-titanium powder is fixedly installed at the top of the discharge pipe. The bottom end of the discharge pipe extends into the interior of the mixing tank. This automatic release agent spraying device for an aluminum ingot production line solves the problem that existing release agent spraying equipment has a single function and cannot spray other substances that protect the mold, leading to easy damage to the mold during long-term use and affecting its service life.

The present invention provides a method for manufacturing a ceramic substrate capable of appropriately setting the amount of a release agent adhered to a ceramic green sheet. According to an embodiment of the present invention, a method for manufacturing a ceramic substrate is provided with: an adhesion step for adhering a mold release agent to both surfaces of a ceramic green sheet having a first surface and a second surface; and a sintering step in which the plurality of ceramic green sheets to which the release agent has been adhered are stacked and sintered. In the ceramic green sheet after the adhesion step, the adhesion rate of the release agent to the first surface and the adhesion rate of the release agent to the second surface are respectively 5% or more and 30% or less. The difference between the adhesion rate of the release agent to the first surface and the adhesion rate of the release agent to the second surface is 20% or less.

The invention discloses a rubber glove box protective glove with a latex coating and a manufacturing method. The glove comprises a mould pressing rubber layer and a local latex coating. The mold pressing rubber layer is prepared through mold pressing vulcanization forming and comprises rubber, a shielding component, a reinforcing filler, a filling agent, an active agent, an anti-aging agent, a plasticizer, a lubricating release agent, a vulcanizing agent and an accelerant. The local latex coating is prepared through latex impregnation, and latex components comprise latex, reinforcing filler, a stabilizer, a diffuser, an active agent, an anti-aging agent, a vulcanizing agent, an accelerant, a thickening agent, a defoaming agent and a coloring agent. Through formula design of the mold pressing rubber layer and the local latex coating and optimization of a latex dipping process, the glove box glove with high mechanical hazard protection performance in the local position is obtained on the premise that the ray protection function and wearing comfort are guaranteed, and the service life of the glove box glove is prolonged. And the service life of the glove box protective glove under the radiation and mechanical dual harm scenes is prolonged.

The invention relates to the technical field of release agents, and discloses a silicone-oil-free wet-process magnet profiling release agent and a preparation process thereof, and the silicone-oil-free wet-process magnet profiling release agent comprises a core functional copolymer, a water-based non-silicon defoaming agent and deionized water. The core functional copolymer is prepared from a hydrophilic self-repairing film-forming monomer, a molecular-level flexible lubricating monomer, a powerful mold anchoring monomer and a programmed pyrolysis triggering monomer through free radical copolymerization. According to the technical scheme, the functions of self-repairing film forming, molecular-level lubrication, mold anchoring and programmed pyrolysis are integrated through a single macromolecular structure. A demolding film layer formed by the water-based demolding agent is uniform and compact, mold sticking and blank defects in the profiling process are avoided, the water-based demolding agent can be completely decomposed and volatilized in the magnet sintering process, and solid residues are not generated, so that the high magnetic performance of a sintered magnet is guaranteed, and the problems that an existing water-based demolding agent is prone to generating film layer defects, poor in system stability, residues after sintering and the like are solved.

The application belongs to the field of epoxy resin composites, and specifically provides a high-strength low-density epoxy SMC composite material and a preparation method thereof, which is prepared by the following steps: S01. Taking a PVC core plate, gluing after grooving, then laying a fiber cloth, vacuumizing under negative pressure after film covering, then pouring a pre-impregnation liquid, and placing to obtain a pre-cured composite plate; S02. Taking the pre-cured composite plate, placing overnight after mold pressing treatment, and then obtaining after demolding and edge trimming treatment; the pre-impregnation liquid preparation step comprises the following: mixing an active diluent, an accelerator, modified microspheres and a filler, first adding an epoxy resin, stirring, then adding the remaining amount of epoxy resin, and then adding a curing agent and a demolding agent, and continuously mixing to obtain the pre-impregnation liquid; the modified microspheres are used as a pre-impregnation liquid additive component, and the prepared SMC composite material product has a density ≤1.57 g / cm 3 , an impact strength ≥84.5 KJ / m 2 , and good flame retardance.

The utility model relates to the technical field of engineering formwork construction, in particular to a construction site formwork release agent brushing construction device which comprises a rack, and a power structure, a pressing structure and a formwork brushing structure are arranged on the rack. The power structure comprises a driving roller group, a chain and a motor; the power output end of the motor is connected with the chain and drives the driving roller set to rotate through the chain. The driving roller group can convey a template; the pressing structure is arranged above the driving roller set and can make contact with the upper surface of the template. The mold brushing structure is arranged above the driving roller set and can brush a mold plate with a release agent, conveying power is provided for the mold plate through the power structure, the pressing structure extrudes the mold plate to avoid displacement or shaking when the mold plate is brushed with the release agent, and the mold brushing structure replaces manual work to brush the mold plate in a mechanical mode. And the on-site manual work intensity is greatly reduced.

The utility model relates to the field of industrial die casting, especially to the die casting die of automobile engine casing, including support frame, still including connecting frame and liquid storage box, be provided with die casting on the support frame, and the die casting includes bottom die, upper die and injection chamber, the utility model discloses through the telescopic link of cylinder drive liquid storage box is located in the upper end of support frame and carries out the sliding in position, and through the output of liquid storage box top while sliding the lower end of upper die and the upper end of bottom die are carried out the work of spraying release agent, through the upper die on the die casting and move downward, make the upper die drive second limit rod downward displacement drive slider and move downward, make the lower end of upper die and the upper end of bottom die mutually adhere, then inject liquid metal from injection chamber, liquid metal flows to the gap between bottom die and upper die and die casting forming, after forming, the upper die moves upward, the casing on the bottom die passes through the upward thrust of the reaction force of spring of lower slider, realize the work of automatic release of casing.

The invention discloses a preparation method of a release film for an adhesive tape. Comprising the following steps: step 1, uniformly mixing vinyl silicone resin, a modified acrylic copolymer, vinyl silicone oil, a photoinitiator, a defoaming agent, a flatting agent, an antioxidant and a solvent, and standing for defoaming to obtain a release agent; and 2, carrying out corona treatment on one side of the polyethylene glycol terephthalate base film, then coating the surface subjected to corona treatment with a release agent, and carrying out curing and cooling processes to obtain the release film. The preparation method of the release film for the adhesive tape, provided by the invention, has the beneficial effects that the performance of the release film is remarkably improved by optimizing the formula and the preparation process of the release agent.

The invention discloses a twice wax coating injection molding mold for a wax mold with a ceramic core, and belongs to the technical field of wax mold molding. In order to solve the problem that an existing product is large in manual burden in the wax mold preparation process, the following technical scheme is provided, the wax mold forming device comprises a bottom plate and a plurality of electric push rods arranged on the bottom plate, a top plate is jointly installed at the output ends of the electric push rods, and a limiting plate is arranged at the top of the top plate. The multiple electric push rods are arranged to drive the top plate to ascend and descend, the overturning assembly and the auxiliary frame are combined to achieve opening, closing and overturning of the top mold, existing manual mold disassembling and assembling operation is replaced, workers can more conveniently clean the top mold and smear a release agent through automatic overturning after the top mold is opened, and the adjusting assembly is arranged on the bottom mold, so that the mold disassembling and assembling efficiency is improved. And the positioning piece arranged on the auxiliary frame is matched, so that the side mold blocks on the bottom mold are automatically opened and closed in the push-pull displacement process of the bottom mold, the formed wax mold is further conveniently taken, and the burden of workers is relieved.

A release agent for epoxy resin molding that supports one-time spraying and multiple demolding, and its preparation method, relates to a release agent and its preparation method. The purpose of this invention is to solve the problem that traditional release agents in the prior art cannot achieve multiple demoldings after a single coating. The release agent for epoxy resin molding that supports one-time spraying and multiple demolding is prepared by mass fraction of 90%~95% solvent, 2%~10% film-forming agent, 2%~10% silicone resin, and 0.02%~2% co-catalyst. Method: 1. Mix the solvent, film-forming agent, and silicone resin to obtain a mixed solution; 2. Add the co-catalyst to the mixed solution and shake. This invention uses a solvent, film-forming agent, silicone resin, and co-catalyst to formulate a release agent that, after one coating or spraying on the surface of a stainless steel or fiberglass mold, enables multiple demoldings of epoxy resin molding, thereby improving production efficiency and saving production costs.

The utility model relates to the technical field of component detection, and discloses a component detection device for release agent production, which comprises a detector, the bottom of the detector is fixedly connected with a base, the bottom of the base is fixedly connected with a support column, one side of the detector is provided with a sample storage tank, and the other side of the detector is provided with a discharge port. The surface of the sample storage tank is fixedly sleeved with a support, the bottom of the support is fixedly connected with the base, the bottom of the storage tank is fixedly communicated with a conveying pipe, and a valve is arranged on the surface of the conveying pipe. Through the arrangement of the stirring assembly and the locking assembly, a to-be-detected sample is uniformly mixed through the stirring assembly, and the sample storage tank can be tightly covered by the cover through the locking assembly, so that the problems that external pollutants are mixed into the sample, the sample is precipitated in the storage process, and the detection efficiency is high due to the fact that a traditional release agent detection device does not protect the to-be-detected sample are solved. During detection, if stirring is not sufficient enough, errors of final detection result data can be caused.

This invention relates to a method for simultaneously producing single-sided and double-sided stainless steel composite plates, comprising steps such as billet preparation, billet processing, application of release agent, spot welding assembly of composite materials, surface treatment of the composite billet, alignment of the assembly, vacuum electron beam welding, defect repair welding, heating of the composite billet, and rolling of the composite billet. This invention, through vacuum welding and heated rolling of double-layer sandwich plates, enables the simultaneous production of both single-sided and double-sided stainless steel composite plates from a single set of composite billets. The rolled stainless steel composite plates exhibit satisfactory flaw detection results, with performance far exceeding user requirements. Furthermore, it allows for mass production and industrialization, providing strong technical support for the stable production of single-sided / double-sided stainless steel composite plates.

The invention discloses a fuel assembly assembling method and belongs to the field of nuclear power. The method comprises the following steps: immersing the zirconium alloy pipe fitting into a shellac resin coating agent dissolved by ethanol, then taking out and drying to form a protective paint film on the surface of the zirconium alloy pipe fitting; and after the fuel assembly is assembled by pulling the rod, the fuel assembly is immersed in a release agent to remove the protective paint film. The method can effectively reduce the risk of damage to the surface coating of the zirconium alloy pipe fitting in the assembling process, and improves the service life and reliability of the fuel assembly.

The invention provides a release agent recycling and reusing system which comprises an intelligent pretreatment module which comprises a multispectral online detector and a self-adaptive feeding adjusting device; the gradient purification unit comprises a targeted separation module and a low-temperature purification module; and the component self-repairing module comprises a real-time performance monitoring unit, a dynamic blending unit and a microcapsule slow-release compensation unit. The problems that in a traditional release agent recycling technology, due to the fact that a multi-dimensional collaborative optimization mechanism is lacked, emulsification unbalance occurs easily in the recycling process of the release agent, the purification effect on impurities is poor, and the recycling purity is low are solved.

The application discloses alloy powder casting die pressing equipment and relates to the field of alloy powder casting. The alloy powder casting die pressing equipment comprises a driving seat and a frame. A die frame is slidably arranged on the top of the frame. A bottom die is rotatably arranged on the top of the driving seat. A plurality of die grooves are arranged on the bottom die. A bottom disc is arranged in the die grooves. A jacking plate is arranged on the top of the bottom disc. An inner cavity is formed in the bottom disc. An oil absorption layer matched with the inner cavity is arranged on the outer wall of the bottom disc. A top die matched with the bottom die is rotatably arranged in the die frame. When the top die drives the die body to slide downwards, the top die is adjusted to rotate by a certain angle through a fixed gear, so that the top die can be adaptively adjusted following the adjustment of the bottom die. The jacking plate is extruded to slide downwards, so that the first opening on the sealing plate and the second opening on the bottom disc are in a coincident state. The oil absorption layer absorbs the jacking plate and applies a release agent to the inner wall of the die groove.