43results about How to "Realize automatic demoulding" patented technology

The invention relates to the technical field of injection molds, in particular to a special-shaped pipe fitting mold which comprises a fixed mold plate, a movable mold plate and a middle mold plate, the middle mold plate is installed on the movable mold plate, positioning columns are arranged on the four corners of the middle mold plate, the fixed mold plate is provided with positioning holes connected with the positioning columns in a matched mode, and an injection molding hole is formed in the middle of the fixed mold plate. A pipe fitting mold is arranged between the middle mold plate and the fixed mold plate, a demolding mechanism is arranged between the movable mold plate and the middle mold plate, first core pulling mechanisms are arranged on the two side edges of the middle mold plate, and second core pulling mechanisms are arranged on the other two side edges of the middle mold plate. By arranging the demolding mechanism, the first core-pulling mechanisms and the second core-pulling mechanisms, rapid demolding can be achieved, it is guaranteed that a pipe fitting can be subjected to injection molding, the mold can conduct injection molding on a multi-pipe-opening special-shaped pipe fitting, the number and positions of the first core-pulling mechanisms and the second core-pulling mechanisms can be automatically adjusted according to use requirements, the demolding mechanism can achieve automatic demolding, manual interference is small, and the mold is convenient to operate. Manpower and manpower cost are saved, and efficiency is high.

The utility model discloses a device for assisting an injection molding machine in demoulding injection products, which comprises a base, two fixing plates are symmetrically and fixedly mounted on the top surface of the base, an upper mould is fixedly mounted on the side surface of one fixing plate through a hydraulic oil cylinder, and a lower mould is fixedly mounted on the side surface of the other fixing plate through an assembly box. The two side faces of the lower mold are fixedly provided with gas collecting pipes, each gas collecting pipe is internally provided with a negative pressure mechanism, and the negative pressure mechanisms are connected with the upper mold. When the mold is used, the operation is simple, the sealing and automatic demolding effects of the lower mold can be further achieved through the approach and separation of the upper mold and the lower mold, and the mold is convenient to use. And the manufacturing cost of the automatic demolding device is reduced, and the automatic demolding device is friendly to small workshops or enterprises.

This invention discloses a device and method for sewing curved sheets with varying diameters on a flat knitting machine, belonging to the field of textile machinery technology. The device includes a curling mechanism and a sewing mechanism; the curling mechanism includes a variable-diameter cylindrical device and a matching holding mechanism. The variable-diameter cylindrical device includes an inner cylinder and an outer cylinder, which expand or contract synchronously via corresponding telescopic connecting rods and a central spindle. The holding mechanism is controlled by an electromagnet, achieving precise holding of the curved sheet by switching the magnetic pole direction. Through the curling and sewing mechanisms, this device expands the fan-shaped curved sheet from a two-dimensional to a three-dimensional structure during rotation, while simultaneously achieving automatic edge sewing of the curved sheet. The inner cylinder can move axially relative to the outer cylinder, allowing the sewn curved sheet to automatically detach from the outer cylinder. This invention simultaneously achieves gripping, curling, expansion, alignment, and demolding, and is suitable for sewing curved sheets with varying diameters on both sides.

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 utility model discloses a double-station gas meter base die. According to the technical scheme, the die comprises an upper die plate, a lower die plate, two pairs of gas meter base upper die core assemblies arranged in the upper die plate and two pairs of gas meter base lower die core assemblies arranged in the lower die plate, slidable side die core assemblies are arranged on the two sides of the lower die plate, and each side die core assembly comprises a sliding block, a side core, a push-pull rod and a positioning block; the sliding block is installed in the sliding groove of the lower die plate in a sliding mode, a square inclined hole penetrating up and down is formed in the middle of the sliding block, a T-shaped groove is formed in the front end of the sliding block, and positioning arms are arranged on the two sides of the sliding block. The side core is connected to the T-shaped groove of the sliding block through a T-shaped head at the end of the side core, and an arc-shaped groove cavity is formed in the other end of the side core. The mold is easy to demold.

The utility model relates to the technical field of automobile mold processing, and aims to provide an automobile mold demolding device which comprises a bottom plate, a vibration device arranged on the bottom plate, a moving device arranged on the bottom plate, an adjusting device arranged on the moving device, an adsorption device arranged on the adjusting device, and a control device arranged on the adsorption device. An auxiliary adsorption device is arranged on the adsorption device, a workpiece is adsorbed through an adsorption magnet, the stability of the workpiece is guaranteed, then through work of an adsorption air pump, the workpiece is stably adsorbed through a suction cup, then the workpiece is taken out, automatic demolding is finally achieved, the working intensity of workers is effectively reduced, and the working efficiency is improved. And the working efficiency is further improved.

The utility model discloses an automatic metal injection molding device, which belongs to the technical field of metal injection molding and comprises a base, two sides of the top of the base are fixedly connected with supporting plates, and the tops of the two supporting plates are fixedly connected with the same bearing plate; the lower mold is slidably connected to the outer side of the bearing plate in a sleeving mode, electric push rods are fixedly connected to the two sides of the top of the base, and the output ends of the two electric push rods are fixedly connected to the bottom of the lower mold; the upper mold is arranged above the lower mold, the top of the upper mold is fixedly connected with an injection molding barrel, and a spiral auger is rotationally mounted in the injection molding barrel; the fixing frame is fixedly connected to the top of the base, linkage mechanisms are arranged on the two sides of the fixing frame, and a pushing mechanism is arranged on the front side of the fixing frame. According to the metal injection molding device, the linkage mechanism is matched with the bearing plate to achieve automatic mold closing and demolding work of the metal injection molding device, automatic discharging is convenient, and the injection molding work efficiency is improved.

The utility model relates to the field of mold manufacturing, and discloses the technical scheme that the automatic demolding device for the automobile precision mold comprises a lower mold, the inner surface of the lower mold is connected with an ejection piece A in a sliding mode, the inner surface of the ejection piece A is elastically connected with a column body B through a spring B, and the column body B is connected with the ejection piece A in a sliding mode. The top of the outer surface of the column body B is slidably connected with the inner surface of the ejection piece A. The bottom end of the outer surface of the column body B is fixedly connected with a U-shaped rod, and the top of the outer surface of the U-shaped rod is fixedly connected with a traction block. According to the automatic demolding device, the motor drives the threaded rod to rotate, so that the upper mold moves, the mold in the upper mold is ejected out through cooperation of the traction rod and the extrusion rod, meanwhile, the U-shaped rod is driven to ascend through the moving block, the ejection piece A is driven to move upwards to eject out the mold in the lower mold, automatic demolding of the upper mold and the lower mold is achieved, and the demolding efficiency is improved.

The utility model is applicable to the technical field of molds, and provides a roller type ejection mechanism which comprises a lifting base, a moving groove is formed in the top of the lifting base, a lifting assembly is mounted in the moving groove, a through hole is formed in the bottom of the moving groove, a return stroke elastic ejection pin is obliquely mounted in the lifting base, and a roller is mounted in the return stroke elastic ejection pin. The telescopic end of the return stroke elastic lifting pin extends out of the through hole and abuts against the lifting assembly. When the upper mold moves downwards and is combined with the lower mold for mold forming, downward pressure can be applied to the contact roller and the supporting arm, so that the supporting arm rotates downwards, meanwhile, the return elastic pin shrinks until the lower mold touches the top of the lifting base, and after the mold is formed, the upper mold returns to the original position, and the lower mold loses the downward pressure, the supporting arm can rotate downwards. The supporting arm drives the lower mold and the formed mold to move upwards under the elastic action of the return elastic pin to achieve automatic demolding, and an operator can take the mold conveniently.

This utility model relates to the field of tea production technology and discloses a tea cake pressing machine for tea production, including a frame and a processing table. The processing table is fixedly connected to the inner wall of the bottom end of the frame. A placement pad frame is fixedly connected to the upper surface of the processing table, and a lower mold is placed on the upper surface of the placement pad frame. A cylinder is fixedly connected to the inner wall of the top end of the frame. A forming mold is fixedly connected to the end of the piston rod of the cylinder. A first connecting block is fixedly connected to the side wall of the forming mold, and a second connecting block is fixedly connected to the side wall of the lower mold. The cylinder provided by this utility model drives the forming mold to reset upward, and the linkage structure drives the lower mold to move downward. At this time, the top end of the support rod is fixed to the demolding push plate. When the lower mold moves downward, the demolding push plate moves upward relative to the lower mold, pushing the pressed tea cake out of the lower mold, realizing automatic demolding and facilitating material removal.

This utility model relates to the field of lithium battery technology and discloses a multi-slider linkage demolding lithium battery casing injection mold, including a worktable, a U-shaped frame mounted on the top of the worktable, an injection molding component mounted on the top of the U-shaped frame, and a switching component mounted on the top of the worktable. This utility model, by setting up a lifting component, moves the left movable box to the left. During this process, the two connecting gears on the left movable box rotate due to the meshing action of the fixed gear plate, thereby causing the intermediate shaft of helical gear B to rotate. This causes helical gear B to rotate, leading to the rotation of the threaded rod. Under the action of the threaded rod, the threaded cylinder moves the lifting plate up and down, thereby causing the vertical rod to move upward with the lifting plate, pushing the injection-molded product upward for easy removal. By switching the two movable boxes, automatic demolding of the product is achieved, improving the overall working efficiency of the device.

This invention relates to the field of flange casting, specifically to a casting equipment for producing alloy cast iron flange molds. The equipment includes a base, a gantry frame mounted on top of the base, crossbeams installed between the gantry frames, a hydraulic cylinder mounted inside the crossbeams, and a fixed seat mounted below the hydraulic cylinder. This invention uses a motor to drive a rotating seat to rotate, which, in conjunction with a grinding wheel on the connecting arm and a torsion spring elastic adaptive structure, automatically grinds the flash on the inner ring of the flange. Power is transmitted through the rigid engagement of a locking block and a locking seat, causing the flange clamped by the fixed block to rotate. Simultaneously, a PLC-controlled robotic arm and grinding disc achieve simultaneous one-time removal of flash from both the inner and outer rings, reducing production steps and improving processing accuracy. Furthermore, a second hydraulic cylinder drives a connecting ring to automatically demold the inner ring, and then the entire flange is demolded through synchronous movement of the two cylinders, replacing traditional manual operation and significantly improving demolding efficiency and operational safety.

This utility model discloses a hot pressing mold for producing brake pads, including a base plate. A worktable is fixedly connected to the top of the base plate via a bracket. A first groove is formed on the top of the worktable. A threaded rod is rotatably connected to the inner cavity of the first groove via a bearing. A threaded sleeve is threadedly connected to the outer surface of the threaded rod. A mounting platform is fixedly connected to the top of the threaded sleeve. The base plate provides stable support for the entire device. The worktable is fixed to the top of the base plate via a bracket to ensure structural stability during operation. A motor drives the threaded rod to rotate, causing the threaded sleeve and mounting platform to move along the first groove. This allows the first or second lower mold to be alternately sent to the bottom of the hot pressing head, realizing parallel operation of "hot pressing-material removal" and improving production continuity. A first electric telescopic rod is fixed to the top plate, which pushes the hot pressing head down to hot press the material in the forming groove of the first or second lower mold.

The utility model relates to lighting lens processing equipment technical field, especially a kind of mould for lighting lens, including base, die holder, tensioning assembly, piston plate and drive assembly. Cold water tank and hot water tank are provided on base, several stand columns are provided on base, and the end of stand column away from base is connected with mould cover;Die holder is slidably connected with stand column and is adapted with mould cover, forming groove and heat exchange cavity are provided on die holder;The both ends of tensioning assembly are respectively connected with base and die holder;Piston plate is slidably arranged in heat exchange cavity, to divide heat exchange cavity into chamber A and chamber B by piston plate, chamber A is communicated with the inside of hot water tank, and chamber B is communicated with the inside of cold water tank;Drive assembly is arranged on base and drives piston plate, and hot water in hot water tank is simultaneously sucked into chamber A. The utility model is preheated, cooled and mould ejection operation are completed to die holder by a group of drive assembly, simple structure, and high stability.

The utility model relates to automatic demoulding device technical field of sealing element discloses a kind of automatic demoulding device of sealing element, including upper die body and lower die body, the top of the upper die body is fixedly inserted with two symmetrical positioning columns, and the top of two positioning columns is fixedly connected with fixed sheet, the bottom end of two positioning columns is slidably inserted in the inside of lower die body, by setting connection column and slider, make upper die body drive slider movement in lifting process, and utilize the lifting of slider to promote elastic sliding block to drive thimble gradually lift, to realize the automatic demoulding of sealing element, without cylinder or motor and other external drive, reduce manufacturing cost, and compact structure, action synchronism.

The utility model provides a kind of shrimp fillet forming mould, belong to mould technical field, it solves the technical problem that personnel manual still needs to realize demolding work when existing demolding, influence overall production efficiency.A kind of shrimp fillet forming mould, including mould body, the support seat of mould body bottom fixation, support seat is slidably provided with cutter holder, the cutter slot of being opened in vertical arrangement is set in mould body one side, multiple dividing knives are fixed in vertical arrangement on cutter holder, each dividing knife is inserted into corresponding cutter slot, and regulating assembly one is set in support seat, regulating assembly one is connected with cutter holder, and mould body is fixed with regulating frame, regulating frame is provided with regulating assembly two, the bottom of mould body is provided with push plate, regulating assembly two is connected with push plate.The utility model has the advantages that multiple shrimp fillets can be made at a time, improve overall production efficiency, and realize automatic demolding, convenient personnel to collect, improve overall work efficiency.

The invention discloses vacuum pouring equipment, and belongs to the technical field of vacuum pouring, the vacuum pouring equipment comprises a pouring tank, a pouring mechanism is mounted on the inner top wall of the pouring tank, a mold placing mechanism matched with the pouring mechanism is mounted on the inner bottom wall of the pouring tank, the mold placing mechanism is used for placing a mold, and a supporting frame is fixedly connected to the pouring tank; a feeding mechanism is mounted on the supporting frame, the pouring mechanism comprises a first mounting plate, a first telescopic cylinder is fixedly connected to the first mounting plate, a second mounting plate is fixedly connected to the output end of the first telescopic cylinder, and a plurality of heat dissipation hole molds matched with the molds are fixedly connected to the second mounting plate. Compared with the prior art, the vacuum pouring equipment has the advantages that the pouring efficiency can be effectively improved, manual arrangement of a heat dissipation hole mold is avoided, automatic demolding of the heat dissipation hole mold can be achieved, the automation degree of epoxy resin pouring in a dry-type transformer is improved, manual operation is reduced, and the product quality and consistency are improved.

The invention belongs to the technical field of demolding devices, and particularly relates to a tunnel lining demolding device which comprises two side plates symmetrically arranged and further comprises a demolding assembly, the demolding assembly comprises two electric telescopic rods and two inner molds, outer molds are arranged on the outer walls of the two inner molds, and the outer molds are arranged on the outer walls of the two inner molds. The demolding assembly pushes the outer mold to move through extension of the electric telescopic rod, so that the outer mold is separated from the inner mold, the formed lining is separated from the position between the outer mold and the inner mold, and then demolding work is completed. According to the tunnel lining demolding device, through the arranged demolding assembly, when demolding work is carried out, a rotating motor rotates a mold to the lower portion, an outer mold and an inner mold are separated under the action of an electric telescopic rod, a formed lining can be separated from the interior of the inner mold under the action of the gravity of the lining, and therefore the automatic demolding effect is achieved; manual operation is not needed, and the tunnel lining machining efficiency is effectively improved.

This application discloses a rapid die-casting mold for aerospace mechanical parts, belonging to the field of die-casting molds. The rapid die-casting mold for aerospace mechanical parts includes a base plate, with a die-casting mold assembly mounted on the top of the base plate. The die-casting mold assembly includes an upper die-casting mold assembly and a lower die-casting mold assembly. The lower die-casting mold assembly includes a lower mold, a demolding rod, and an L-shaped semi-toothed rack. The demolding rod passes through and slidably connects to the interior of the lower mold. A slot is opened at the bottom end of the base plate, and the L-shaped semi-toothed rack passes through and slidably connects to the interior of the slot. This application, by setting up the lower die-casting mold assembly and cooperating with the upper die-casting mold assembly, achieves demolding after die-casting and simultaneously pushes the die-cast part out of the lower mold, thereby realizing automatic demolding and automatic material discharge, saving time and achieving the effect of a rapid die-casting mold. By setting up a vibration device, in cooperation with the upper die-casting mold, the molten material inside the lower mold is fully filled, thereby ensuring the quality of the die-cast part.

The application provides a polycrystalline silicon directional solidification method, which solves the problems of cell dislocation in polycrystalline silicon and the like, and comprises the following steps: S1: after a single crystal silicon wafer is pickled and impurities are removed, the single crystal silicon wafer is placed into a crucible, and then the crucible is placed into a melting furnace to be heated, melted and kept stationary; S2: the bottom of the crucible is rapidly cooled to make the bottom silicon liquid rapidly condense; S3: the crucible is pulled down to make the silicon liquid uniformly crystallize; S4: a blowing device is started, and the temperature of the silicon ingot rapidly drops; S4: the melting furnace is heated and kept at a constant temperature, and then the temperature slowly drops; and S5: the silicon ingot is taken out and naturally cooled. The application has the advantages of high crystallization quality, elimination of layering defects and the like.

The utility model relates to the technical field of automation equipment, in particular to a ceramic die head demoulding device which comprises a die sleeve, a die core, a die core, a die core and a die core, the connecting plate is arranged in the die sleeve and suitable for being subjected to die-casting forming together with the ceramic die head; the supporting frame is located on one side, in the length direction, of the mold sleeve and suitable for being fixedly connected with external equipment or the ground; and the driving assembly is fixedly arranged at the top of the supporting frame, the output end of the driving assembly is in driving connection with the connecting plate, and the driving assembly is suitable for driving the connecting plate and the ceramic die head to be jointly separated from the die sleeve in the length direction of the die sleeve. The technical problems that an existing ceramic die head needs to be manually dragged for demolding and pulling out, demolding is difficult, and potential safety hazards exist are solved.

The utility model relates to a square pile mold, and relates to the technical field of building molds. The material injection device comprises a bottom plate, a material injection frame, a movable plate and a driving assembly, the material injection frame is located on the bottom plate, and supporting columns used for supporting the material injection frame are arranged on the bottom plate; two groups of moving plates are oppositely arranged, and the two moving plates are connected to the material injection frame in a sliding manner; the driving assembly is used for adjusting the distance between the two moving plates. The square pile mold has the effect of improving the applicability of the square pile mold.

The utility model relates to badge mould equipment field discloses a mould of various shape badges can be made, including connecting seat, the ejection mechanism includes motor, the surface fixed connection of motor has fixed block, the gear rotation is connected with sliding block, the surface screw thread connection of sliding block has fixed bolt, the outside lateral wall fixed connection of rack a has connecting block, the upper end fixed connection of base has the ejector block, the surface fixed connection of jacks have fixed frame, the outside lateral wall fixed connection of fixed frame in the outside lateral wall of rack b. In the utility model, through the sliding of sliding block, the ejector block and the jacks can be driven upwards respectively, the badge automatic demoulding is realized, the manual picking is not needed, the efficiency is improved, the uneven deformation of badge is avoided, the complete finished product is guaranteed, simultaneously, through the contact of ejector block and contact block, the core box can be ejected and replaced quickly and conveniently, the mould changing process is simplified, and the operation is more convenient.

This utility model discloses a novel forging and stamping die, relating to the field of forging and stamping technology. The utility model includes a base, with a liquid storage tank and a forging table at the top center of the base. A fixing frame and a die groove are provided on the top of the forging table. A first hydraulic cylinder is mounted on the top of the fixing frame, and an installation plate is fixed to the output end of the first hydraulic cylinder. A module is mounted on the bottom of the installation plate, and movable rods extending into the forging table are fixed on both sides of the bottom of the installation plate. This utility model uses an atomizing nozzle to atomize and spray the release agent evenly onto the module and die groove surface through a pressure differential atomization principle (the piston plate squeezes the liquid inside the piston cylinder to generate high pressure, causing the release agent to collide and break into fine droplets when sprayed at high speed through the nozzle's micro-holes). This provides a clean, lubricated die surface with stable release performance for the production of the next set of open-end wrenches, reducing the tediousness of manual operation.

The present invention discloses a grinding wheel forming machine, which relates to the field of grinding wheel extrusion forming technology. The grinding wheel forming machine comprises: a mold, wherein the mold comprises a slide seat, a rotating seat arranged on the upper surface of the slide seat, and a mold outer cylinder placed on the upper surface of the rotating seat, wherein a pressure-maintaining plate can be placed in the mold outer cylinder; a main body pressure plate, wherein a hydraulic cylinder for driving the main body pressure plate to rise and fall is arranged above the main body pressure plate, wherein the main body pressure plate presses the pressure-maintaining plate downward to apply pressure to the metal powder in the mold outer cylinder; and a first pull hook. The present invention automatically lifts the mold outer cylinder upward during the upward return of the main body pressure plate, thereby achieving the purpose of automatic demoulding and rapid demoulding, and when the first pull hook pulls the mold outer cylinder upward, the elastic pressure rod can press the pressure-maintaining plate downward, thereby giving a downward pressure to the pressure-maintaining plate and the molding grinding wheel, and the mold outer cylinder is subjected to an upward pulling force, thereby ensuring that the two are separated from each other, and the grinding wheel will not move upward together with the mold outer cylinder, thereby ensuring demoulding.

The invention relates to the field of aircraft part manufacturing, in particular to an aircraft air outlet nozzle forming production device which comprises a base, a cross beam fixed to the base through a vertical frame, a draught fan, a pressure storage barrel, a valve barrel, a first nozzle and a second nozzle, the draught fan is fixed to the base, the first nozzle is used for blowing and cleaning the forming face of a male die, and the second nozzle is used for blowing and cleaning the forming face of a female die. The second nozzle is used for blowing and cleaning the forming face of the female die. A conveying mechanism is arranged on the base, a plurality of female dies are arranged on the conveying mechanism, a stamping mechanism is arranged on the cross beam, a male die is arranged on the stamping mechanism, and material returning assemblies are arranged on the male die and the female dies. According to the aircraft air outlet nozzle forming production device, automatic stamping and automatic feeding of air outlet nozzle stamping forming are achieved, automatic demolding is achieved, time and labor are saved, continuous stamping machining can be achieved, the production efficiency is greatly improved, the forming faces of the male die and the female die are automatically cleaned, metal chippings and sundries are automatically removed, abrasion of the male die and the female die is reduced, and the production efficiency is improved. And the yield of formed products is ensured.

The utility model provides a brake disc production stamping die with an automatic demoulding function, and relates to the technical field of brake disc production, the brake disc production stamping die comprises a workbench, the top of the workbench is fixedly connected with a fixed cover, the surface of the fixed cover is provided with an arc-shaped hole, the inner wall of one end of the arc-shaped hole is provided with an arc-shaped groove, and the inner wall of the other end of the arc-shaped hole is provided with a die. And an arc-shaped plate is embedded and slidably connected into the arc-shaped groove, a hydraulic cylinder is fixedly connected to the top of the fixing cover, and the output end of the hydraulic cylinder penetrates through the fixing cover and is fixedly connected with a stamping disc. According to the mold, automatic demolding is achieved through cooperative operation of the hydraulic cylinder, the stamping disc, the lifting disc and other structures. And after stamping is completed, the lifting disc ascends under the assistance of the vertical rod, the spring and other components, the brake disc is ejected out of the die groove, manual intervention is not needed, and the production efficiency is greatly improved. Meanwhile, the automatic demolding process is stable and accurate, brake disc damage caused by manual operation is avoided, and the product quality is guaranteed.

The application provides an injection molding machine for plastic part production and relates to the technical field of automotive interiors, and comprises a U-shaped base, a mounting table fixedly arranged at the top of the U-shaped base, four groups of supporting columns fixedly arranged at the top of the mounting table, and a top injection cavity fixedly arranged at the top of the supporting column; an injection channel is fixedly arranged in the middle of the top injection cavity; a sliding valve disc is fixedly arranged at the bottom of the injection channel; a sliding valve core is slidingly arranged in the sliding valve disc; a sealing plate is fixedly arranged at the bottom of the sliding valve disc; and an injection head is fixedly arranged at the bottom of the sealing plate; the sliding valve core is arranged to provide a valve control structure capable of being automatically opened, a driving lifting lead screw is rotated to make a movable injection port contact the injection head to be in abutment and docking, then a compound mold continues to rise, the top surface of the compound mold contacts a spring rod to push the spring rod upward, the sliding valve core is no longer blocked from the injection head, injection is performed, and the problem that existing equipment lacks an automatically opened and closed valve is solved.

The silicon-based microneedle mold comprises a base, a silicon-based microneedle upper mold body, a silicon-based microneedle lower mold body, a ball nut and a demolding plate, a motor is installed in the base, a screw rod is installed at the power shaft end of the motor, the ball nut is installed on the screw rod in a threaded mode, a supporting rod is installed on the ball nut, and the silicon-based microneedle upper mold body and the silicon-based microneedle lower mold body are installed on the supporting rod. A supporting rod is installed on the base, a mounting table is installed at the top end of the supporting rod, a silicon-based microneedle lower mold is installed on the table top of the mounting table, a support is installed on the base, a linear motor set is installed on the support, an electric telescopic rod C is installed on the linear motor set, a demolding plate is installed at one end of the electric telescopic rod C, and a suction pump is installed on the demolding plate. A suction cup is installed on the bottom face of the demolding plate, and the suction pump is connected with the suction cup. According to the silicon-based microneedle demoulding device, the complexity and low efficiency of manual demoulding are avoided, the problem of adhesive residue caused by demoulding by using adhesive is also avoided, and the production efficiency and the product quality of the silicon-based microneedle are improved.