110results about How to "Reduce the difficulty of demoulding" patented technology

The invention relate to a tool and production method for producing a variable cross-section type I-shaped composite part. According to the technical scheme, the tool is composed of an upper male die, a lower male die, a middle spacer plate and composite even pressing plates on the two sides. The production method comprises the steps that firstly, the composite even pressing plates are made; then, carbon fiber prepregs cut into fixed sizes are laid on a forming tool; finally all parts of the carbon fiber prepregs laid well are transferred from the forming tool to an assembly solidification tool for integral assembly, and packaged in a vacuum bag; the fully sealed prepreg blank is subjected to solidification forming under the conditions of 120-180 DEG C and 0.3-0.8 mpa for 1-3 hours; and after cooling, the composite even pressing plates, the middle spacer plate, the upper male die and the lower male die are detached to obtain the variable cross-section type I-shaped composite part. According to the production process, the pressure transmission efficiency of the part in the solidification process can be improved; generation of the structure defect of the part is reduced; the shape and the internal quality of the part are ensured.

The invention provides a composite bipolar plate. The composite bipolar plate comprises an upper surface layer, a lower surface layer and one or more intermediate layers, wherein one or more transition layers exist between the upper surface layer or the lower surface layer and each intermediate layer. The lower surface layer, the transition layer, the intermediate layer, the transition layer and the upper surface layer are sequentially placed into a die with a flow field and is spread and cold pressed to prepare a preform. Then, the preform is hot-pressed and is finally subjected to processessuch as demolding and aftertreatment to prepare the composite bipolar plate. The composite bipolar plate provided by the invention effectively balances the conflict between conductivity and bending strength and has good bending strength, conductivity and gas permeability.

The invention provides a microprism-type reflective film. The microprism-type reflective film comprises a transparent basal film and a microprism layer. The microprism layer is arranged on a surface of the transparent basal film. The microprism layer is a combination of a plurality of microprism units. Each microprism unit comprises first prisms and a second prism. Each first prism is a triangular pyramid structure which is formed after cutting off one angle at a vertex angle and a base angle respectively and possesses a bottom surface, three side surfaces, three bottom cross sections and one top cross section. The second prism is a triangular pyramid structure and possesses a bottom surface, three side surfaces, one vertex angle and three base angles. A bottom surface of each first prism and a bottom surface of the second prism are combined with the transparent basal film. The second prism is arranged in a gap of the adjacent first prisms. By using the microprism-type reflective film, a viewing angle can be increased and demoulding difficulty is reduced.

The invention discloses a composite material T shaped ribbed wallboard autoclave forming die structure and a forming method. The structure comprises a die provided with a T shaped groove; the die is used for manufacturing a composite material T shaped ribbed wallboard; a T shaped rib is placed in the die provided with the T shaped groove and is precisely positioned through a positioning hole and the die; a sealing strip is arranged between the T shaped rib and the die and ensures that resin does not flow into the T shaped groove during the curing process; an oblique angle is designed on the Tshaped groove of the die to ensure demoulding feasibility; a dried rib and a wet skin are in glue joint to manufacture the T shaped ribbed wallboard; the rib for manufacturing the composite material ribbed wallboard is high in location degree and axis degree; and a rotary body structure provided with an internal T shaped ribbed structure also can be manufactured.

The invention relates to the technical field of organic silicon release agents, in particular to an organic silicon release agent stirring device. The organic silicon release agent stirring device is characterized in that the bottom ends of ejecting shafts pass through springs and a guide plate sequentially to be fixedly connected with a fixing plate, each of stirring mechanisms comprises a stirring motor, a driving stirring gear, a driven stirring gear, a stirring bearing, a stirring shaft and a stirring propeller, and the lower ends of the stirring shafts pass through the stirring bearings and the fixing plates sequentially to be fixedly connected with the stirring propellers. When the organic silicon release agent stirring device is used, an external motor drives a camshaft to rotate to enable a telescoping mechanism to reciprocate up and down, then the fixing plate is driven to enable the whole stirring mechanisms to reciprocate up and down and not to stop on a fixed plane, and accordingly stirring efficiency is better and difficulty in release due to nonuniform mixing is lowered. Additionally, the organic silicon release agent stirring device is simple in structure, reasonable in design and low in manufacturing cost.

The invention discloses a silicone rubber insulator injection mold demolding device which comprises a base. The base is connected with a high-pressure cavity. The left side of the high-pressure cavityis connected with an air compressor. The surface of the right side of the high-pressure cavity is connected with horizontal jet nozzles. The base is provided with a rectangular groove. A stand columnis arranged in the rectangular groove. A bearing is arranged at the top end of the stand column. A rotary shaft is arranged in the bearing. The left side of the rotary shaft is connected with a motorand fixedly connected with a rotary frame. The two ends of the rotary frame are fixedly provided with negative-pressure cavities. Adsorption holes are formed in the right sides of the negative-pressure cavities. The left side of the base is connected with an L-shaped support. The tail end of the L-shaped support is provided with an air cooler. By arranging the high-pressure cavity and the jet nozzles, even and gentle air force is used for demolding, no pit is left in the surface of an insulator, by arranging the rotary frame and the negative-pressure cavities, rotation and forward pushing areconducted at the same time, and the demolding difficulty is lowered.

The invention discloses an assembling type composite floor slab with a height limiting device and a production process for the assembling type composite floor slab. Transverse steel bars and longitudinal steel bars are poured in the composite floor slab, truss steel bars are poured on the composite floor slab, the composite floor slab is further fixedly provided with a plurality of vertical heightlimiting columns, and the top ends of the height limiting columns are higher than the truss steel bars. A mold for producing the composite floor slab adopts a structure for facilitating demolding, and the detailed structure is as follows: a mold table is provided with a rectangular opening groove, and a supporting plate is hinged clinging to the inner wall of the opening groove. When side platesare installed, supporting plates are rotated to a horizontal position and are fixed, the supporting plates are rotated to a vertical state to enable the side plates to be suspended after the pouring is finished, and then the side plates are knocked downwards, so that a relatively large shearing force can be generated between the side plates and concrete, and the side plates can be accelerated to be separated from the concrete. The height limiting columns are integrally installed while the composite floor slab manufactured, the height limiting columns can be used for indicating a pouring thickness of the cast-in-place concrete, and the problem of waste caused by excessive pouring of the concrete is effectively solved.

The invention relates to a demoulding device for a thin-wall deep-drawing part process. The demoulding device mainly comprises a discharging ring (2), a material guiding barrel (3) and a thread check ring (4) which are sleeved sequentially from top to bottom, wherein a rubber ring (6) is hooped in a U-shaped slot of the discharging ring (2) for fixing; a spring (7) is arranged on the thread check ring (4) and is used for supporting the material guiding barrel (3); a taper hole seat (1) is used for sleeving the components; and a thread is matched with the thread check ring (4). The demoulding device is characterized in that: a step-shaped structure (13) is arranged at the position, which is close to the upper port, on the inner wall of the discharging ring (2) to form an inner flange (14) and an auxiliary support surface (15). Due to the adoption of the unique design of spliced discharging blocks and the inner flange, the demoulding device can obviously reduce the demoulding difficulty of 500ml-steel cans and can effectively prevent the openings of the cans from being pressed and destabilized in the demoulding process.

The invention discloses a construction method for a cover-excavation reverse method soil moulding bed, overcoming the defect of the common soil moulding bed construction method. The moulding bed can be prevented from chipping and falling angles, and is convenient to fall, demoulding cost is lowered, and safety is improved. In addition, with the construction method, materials are saved, the environment is protected, cost is lowered, and demoulding efficiency and appearance quality are improved. The construction method has the beneficial effects of simple technology, strong maneuverability, strong weather adaptability, low demoulding difficulty and small demoulding cost, saving of more materials, and effective control of physical dimension of a beam plate, and ensures that the structure is in the normal stressed state; and the forming appearance quality of the beam plate concrete is improved.

The present invention discloses a hollow fiber membrane filtration core potting mold and a use method thereof. The potting mold is made from a hydrophobic organic material and has advantages of simple structure, easy processing and easy use, wherein the hydrophobic organic material has a low surface energy so as to effectively reduce the adhesion between the potting glue and the potting mold, such that the potted and casted filtration core can be completely demolded, the demolding difficulty is reduced, the damage on the work-piece during the demolding process is avoided, and the potting efficiency is effectively improved. According to the use method of the potting mold, with the pre-treatment process on the potting mold, the demolding difficulty is further reduced, and the potting efficiency is improved.

The invention provides an electrified sintering die which comprises an internal movable block forming die and an outer die sleeve arranged from inside to outside and further comprises an upper pressure head and a lower pressure head arranged in the internal movable block forming die, wherein a counterbore hole is formed in the outer die sleeve; a shunting flow deflector is arranged in the counterbore hole; and the inner wall of the outer die sleeve or the outer wall of the internal movable block forming die is coated with a release agent. The electrified sintering die can improve the uniformity of a sintering temperature field and reduces the demoulding difficulty of a sintered sample to improve the sintering uniformity of the sample and the integrity of the sintered sample.

The invention discloses a U-shaped building embedded part and a construction method of an anchoring component applying the U-shaped building embedded part. The embedded part comprises a U-shaped bolt, two connecting sleeves and a reinforcing steel bar; the U-shaped bolt and the connecting sleeves are connected through threads, and the reinforcing steel bar and the U-shaped bolt are welded, so that the U-shaped bolt is prevented from being deformed in the carrying process. When embedding in pouring construction is conducted, the ends of the connecting sleeves abut against a whole formwork, holes do not need to be preformed in the whole formwork, the slurry leakage phenomenon cannot occur in the pouring process, and later formwork stripping is easy; in addition, accessory equipment is connected with the sleeves of the U-shaped embedded part through bolts, when the accessory equipment fails, the accessory equipment can be maintained and replaced by screwing down the connecting bolts, and therefore concrete structure ancillary facilities are greatly convenient to maintain and replace.

The invention relates to a non-stick easy demoulding toast box, which comprises a toast box body, and the toast box body comprises a box bottom and a sidewall located on the edge of the box bottom; the non-stick easy demoulding toast box is characterized in that the sidewall comprises two short-side sidewalls and two long-side sidewalls, the two short-side sidewalls are of a flat plate structure, and the two long-side sidewalls are shaped like up-and-down waves. The box bottom is provided with a plurality of oil drain holes. The internal surface of the toast box body is provided with ductile non-stick coating. The upper edge of the sidewall is outwardly curled to form an edge with a round section, a solid fixed bar is fixedly welded in the cavity of the edge, and the section of the fixed bar adopts a round which is the same as the shape of the section of the cavity of the edge. The non-stick easy demoulding toast box described by the invention decreases the difficulty of demoulding a roasted product from the toast box, the non-stick easy demoulding toast box is convenient to operate, and food cannot be defaced.

The invention discloses an injection mold convenient for stable demoulding. The injection mold comprises a moving module and a fixed module, the moving module comprises a moving base, a supporting plate is welded to the moving base, a cavity is formed between the moving base and the supporting plate, an air pump is installed in the moving base, an air bag is connected to the output end of the airpump, a pressing plate is fixedly adhered to the air bag, two abutting rods are correspondingly welded to the pressing plate, springs are arranged on the two abutting rods in a sleeving mode, a sliding groove is formed in the inner wall of the cavity, and sliding blocks are correspondingly welded to the upper end and the lower end of the pressing plate. According to the injection mold, a water-cooling cavity is utilized to improve the cooling setting efficiency of a plastic part, and thus the waiting time of demoulding is shortened; the temperature in the injection mold is adjusted properly through the cooling effect, the temperature difference between the injection mold and the environment is advantageously reduced, and thus the air pressure adjustment in an injection module is achieved;and the air pump is utilized to inflate the air bag to achieve the horizontal movement of the abutting rods, thus the abutting rods push the forming plastic part, and the plastic part is separated from a moving mold stably.

The invention discloses a pipeline-free vacuum infusion forming method of a sandwiched composite material for vacuum infusion formation of a sandwiched composite material. According to the invention, a method for forming a sandwiched material filling hole (7) by slotting a sandwiched material (4) in a sandwiched composite material structure is used for replacing a flow guide pipe used in the prior art to establish a vacuum system. Liquid resin flows through the sandwiched material filling hole (7) and infiltrates an upper dry laying layer (5), a sandwiched material (4) an a lower dry laying layer (3). After a product is cured, the slotted sandwiched material (4) is left in the product and is integrated with the product. Resin is kept in the product by pipeline-free filling; a great amount of resin waste is reduced; meanwhile, the problem of demoulding difficulty of a vacuum system on the surface of the product is solved; because of reduction of a great amount of solid waste, the environmental pollution is prevented; the working environment is improved.

The invention discloses a plastic mold capable of demolding quickly. The plastic mold comprises a fixed mold and a movable mold, a fixed mold cavity is formed in one side, facing the movable mold, ofthe fixed mold, a movable mold core is arranged on one side, facing the fixed mold, of the movable mold, and the movable mold core is matched with the fixed mold cavity to form a mold cavity; a glue injection channel penetrating through the movable mold is installed in the middle of the movable mold core, cooling pipelines are internally arranged in the fixed mold cavity and the movable mold core,and water inlet ends and water outlet ends of the cooling pipelines extend out of the plastic mold. According to the mold, cooling devices are correspondingly arranged on the two sides of the upper surface of the mold cavity, two sides of the lower surface of the mold cavity, and the two sides of the glue injection channel so that residual rubber materials in a whole injection molding and the residual rubber materials in a glue injection port can be cooled at the same time, then the demolding efficiency of the whole injection molding is improved, and particularly, the demolding difficulty atthe glue injection opening is reduced; and by adopting the plastic mold, the demolding speed of the injection molding is high, the demolding performance is reliable, the production efficiency is high,and the practicability is high.

The invention relates to the technical field of manufacturing of epoxy resin release agents, in particular to a novel epoxy resin release agent and a preparation method and application thereof. By means of ratio design of high vacuum silicone grease, gasoline and absolute ethyl alcohol, the novel epoxy resin release agent is reasonable in ratio, mold release is easy after the novel epoxy resin release agent is used for mold release treatment, the appearance surface of a product is full, the film forming speed is moderate, and formed films are evenly distributed in a mold; and no film sticking phenomenon happens, the mold release difficulty is reduced, the mold release efficiency is improved, and the product quality is improved.

The invention provides an RTM mold for a composite workpiece with reinforcing ribs. The RTM mold comprises an upper mold, a lower mold, multiple core molds, an edge strip and a pressing strip, wherein the core molds are arranged between the upper mold and the lower mold, the upper mold is provided with an annular groove which is arranged around the core molds, and the edge strip and the pressing strip are attached to each other and placed in the annular groove separately; each core mold is provided with a locating convex table, the upper mold is provided with rectangular grooves matched with the locating convex tables, and each locating convex table is provided with a first demolding bolt hole; and the upper mold and the lower mold are each provided with multiple through holes, fastening bolts used for fixing the upper mold and the lower mold penetrate through the through holes, the upper mold and the lower mold are each provided with multiple second demolding bolt holes, and demolding bolts penetrates through the second demolding bolt holes. According to the RTM mold for the composite workpiece with the reinforcing ribs, the upper mold, the lower mold and the core molds are mutually matched, and therefore the dimensional accuracy of the workpiece is guaranteed. The RTM mold is designed according to the structural characteristic of the composite workpiece with the reinforcing ribs; and therefore, the reinforcing ribs of the workpiece can be formed easily, the dimension is accurate, demolding is easy, and the workpiece is prevented from being damaged.

The invention belongs to the technical field of improvement of building prefabricated components, and discloses a combined prefabricated shear wall mold assembly and a using method thereof. The mold assembly comprises a pair of end molds and a pair of side molds, wherein the side molds and the end molds are alternately connected and fixed to form a prefabricated shear wall frame, each side mold comprises an upper pressing plate and a lower side mold, and the upper pressing plate is buckled and fixed on the lower side die. According to the technical scheme, the mold assembly has the advantagesof simplicity, convenience and rapidness in operation, good component forming quality and low mold manufacturing cost, the process is simplified, and the production efficiency is improved.

The invention provides a mold of a worm with gears. The mold of a worm with gears comprises an upper mold with a thread injection molding cavity and a lower mold with a gear injection molding cavity; the upper mold is internally provided with a first insert; the thread injection molding cavity is arranged in the first insert; the first insert is rotatably arranged in the upper mold; the thread injection molding cavity is arranged in a rotatable first insert; when in demoulding, the first insert in the rotatable mold can be rotated to enable a screw part of a worm with gears to be demoulded smoothly, so that a thread injection molding product can be demoulded directly for the mold depending on the structure of the mold, and the demoulding difficulty is lowered; a push plate is arranged between the upper mold and the lower mold; the push plate is provided with a connecting part containing cavity for connecting the thread injection molding cavity and the gear injection molding cavity; the end part of the worm with gears is of a gear structure, therefore, a push plate structure is arranged in demoulding, and demoulding push force is applied to gear parts of the push plate structure in demoulding, so that products can be demoulded easily.

The invention discloses a production method and production equipment of a variable-cross-section precast pile, and the method comprises the following steps: injecting concrete into mold cavities with openings in the tops of a plurality of molds so as to carry out primary material distribution; pushing the uniform material in the width direction of the mold; the vibrating mechanism is used for vibrating and compacting the uniformized concrete; the scraping mechanism is used for scraping redundant concrete inside and outside the die cavity so as to perform primary scraping; forming a variable cross-section prefabricated blank; secondary material distribution is conducted on the top of the variable cross-section prefabricated blank in a spaced mode, so that at least one top protrusion distributed in the length direction at intervals is molded on the top, and the top protrusion corresponds to the large-diameter section of the mold cavity; redundant concrete on the top protrusion is scraped off; and the variable-cross-section precast pile is formed. According to the scheme, the variable-cross-section prefabricated blank is firstly formed in the mold cavity through casting, then the top of the variable-cross-section prefabricated blank is modeled through the modeling procedure, finally, the variable-cross-section prefabricated pile is formed, and the demolding difficulty is greatly reduced.