37results about How to "Easy demoulding process" patented technology

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 provides a barrier layer for being arranged on the surface of a sintered mold for preparing foamed ceramics, the composition of the barrier layer includes quartz sand, zirconia, aluminum oxide, carbide and nitride, wherein the carbide It includes one or more of silicon carbide, tungsten carbide and boron carbide, and the nitride includes one or more of silicon nitride, boron nitride and tungsten nitride. The barrier layer is used to be arranged on the surface of a sintered mold for preparing foamed ceramics, and is characterized in that the components of the barrier layer include quartz sand, zirconia, aluminum oxide, carbides and nitrides, wherein the carbides include One or more of silicon carbide, tungsten carbide and boron carbide, and the nitride includes one or more of silicon nitride, boron nitride and tungsten nitride. The invention also provides a sintering mold and a preparation method of the sintering mold.

The invention discloses a tray mold capable of achieving injection molding of multiple bottom feet, and belongs to the technical field of injection molding. The problem that a common injection moldingtray mold can only make a tray is solved. The tray mold capable of achieving injection molding of multiple bottom feet comprises a movable mold and a fixed mold, the fixed mold is provided with multiple bottom column holes corresponding to the bottom feet, upper bottom columns in threaded connection with the bottom column holes are arranged in the bottom column holes, the movable mold is providedwith lower bottom holes corresponding to the upper bottom columns, the lower bottom holes penetrate the movable mold, round plugs are arranged in the lower bottom holes, the edges of the round plugsare attached to the inner walls of the lower bottom holes, one side of the movable mold is wedged with the fixed mold to form a mold cavity, an air cylinder is arranged on the other side of the movable mold, the air cylinder comprises a connecting rod, the other end of the connecting rod is in spiral connection with a fixed rod, and the round plug and the fixed rod are fixedly connected.

The invention discloses a demolding device capable of being used for molding. The demolding device comprises a box body, a bracket, a pressurizing plate, a feeding base plate and a stud, wherein a blanking port is formed in the top plate of the box body, the feeding base plate is detachably installed on the box body and used for sealing the blanking port, the bracekt is installed on the box body,the stud is vertically installed on the braclet in a threaded mode, the pressurizing plate is rotatably installed at the bottom of the stud, and the stud rotates to drive the pressurizing plate to move in the direction close to or away from the top plate of the box body. The demolding device is simple in structure and convenient to realize demolding and molding of the inspection piece. In the demolding and molding process, the pressurizing plate is rotationally connected with the stud, after the pressurizing plate abuts against the detection piece and the stud rotates downwards, the pressurizing plate does not rotate, then the detection piece is prevented from rotating relative to the mold and abrasion of the detection piece is reduced.

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 disclosure relates to a preparation device and method for a rock-soil model test piece, which includes a mold barrel, a hammering piece that can be inserted through the opening of the first end of the mold barrel, and a base that is detachably installed at the opening of the second end; it also includes a top The ejection mechanism, the ejection mechanism includes a top cover detachably fixed at the opening of the first end, the top cover is pierced with a ejector rod, driven by the linear drive mechanism, the ejector rod can extend into the mold barrel and move along the central axis of the mold barrel Do reciprocating linear motion. The disclosure can reduce the difficulty of preparing rock-soil model test pieces and improve the preparation quality of the test pieces.

The invention relates to the technical field of injection molds, and relates to a secondary ejection structure and method of a crank slider of an injection mold, including a crank slider mechanism, a push plate for pushing a movable mold upward to eject a product to a first distance, Shifting block and thimble block; the slider crank mechanism includes a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the base, the other end is hinged with one end of the second connecting rod through a hinge, and the other end of the second connecting rod is hinged. One end is hinged with the push plate; the hinge is slidable and located in the semi-crescent chute of the shifting block, the shifting block is fixedly connected with the thimble block, and the thimble block is fixed with a thimble for ejecting the product to the second distance. When the plastic product has a deep glue position on the movable mold side, the secondary ejection structure is simple and easy to realize product demoulding, and it has low cost, simple maintenance and high versatility. Achieve secondary ejection with fewer parts added. The processing and assembly of the added parts are easier. So as to achieve the effect of saving mold cost.

The invention discloses an assembled mould structure with self-contained sliding core power, which comprises a fixed mould and a movable mould matched with each other, wherein the working face of the movable mould is encrusted with movable mould units, the middle part of each movable mould unit is provided with a movable cavity, and the periphery of each movable mould unit is provided with three sets of sliding core units at an interval of equal radian along the center of the movable cavity; each sliding core unit is equipped with a slide block, and the external end side of the slide block isprovided with an obliquely arranged hollow lantern ring; the contact face of the fixed mould is embedded with fixed mould units, the middle part of each fixed mould unit is provided with a fixed cavity, and the periphery of each fixed mould unit is provided with three sets of driving units at an interval of equal radian along the center of the fixed cavity; and each driving unit is internally equipped with a protruded and obliquely arranged driving shaft. The assembled mould structure of the invention has the advantages that: by using the structure of splicing inclined shafts and sleeves, theoperation of the slide blocks can be realized without other external power; the same module is equipped with four sets of module units; the processing efficiency is high; and all units are in bolted connection, so the maintenance is quick and convenient.