388results about "Ceramic extrusion dies" patented technology

Disclosed herein is a method and apparatus for back end control of translation and rotation of green ware (e.g., producible from ceramic extrudate). A green ware handling system (102) includes a back end assembly (129) that contacts a back end face (118B) of a green ware (116) and moves to push the green ware (116) along the support channel (114). In certain embodiments, the green ware handling assembly (102) includes a leading end assembly (128) to pull the green ware (116) and then transfer control to the back end assembly (129), which translates and also optionally rotates the green ware (116). This handoff increases the overall production rate of the green ware (116). In certain embodiments, the back end assembly (129) penetrates the back end face (118B) of the green ware (116) with cleat penetration features (312) to provide a secure engagement with the green ware (116) to rotate and translate the green ware (116) while also decreasing a depth of damage to the green ware (116).

A molding apparatus for producing a floor on the basis of desulfurized ash, which relates to the technical field of floor molding apparatuses. The molding apparatus for producing a floor on the basis of desulfurized ash comprises a bottom plate (1), wherein a rotary electric motor (2) is fixedly connected to the top of the bottom plate (1), an upright post (3) is fixedly connected to an output shaft of the rotary electric motor (2), a turntable (4) is fixedly connected to the top end of the upright post (3), connecting rods (5) are fixedly connected to the circumferential surface of the turntable (4), a lower mold assembly (6) is fixedly connected to the end of each of the connecting rods (5) away from the turntable (4), and the lower mold assembly (6) comprises a support plate, a sliding hole, a sliding rod, a sliding plate, a spring, a connecting plate, a molding seat, a molding cavity, and a handle. The support plate, the sliding hole, the sliding rod, the sliding plate, the spring, the connecting plate, the handle, a connecting column (7), and a scraper (8) are provided, and the molding seat is controlled to slide on the support plate by means of the handle, and the scraper (8) can remove excess raw materials from the molding seat, and can level the raw materials inside the molding cavity, which help to ensure the uniform thickness of the produced floor of desulfurized ash.

According to the forming equipment for refractory brick machining, the forming equipment is applied to the technical field of refractory brick forming, the composite die composed of the upper die body, the lower die body and the side die body is arranged, the upper die body, the lower die body and the side die body can punch refractory bricks during forming, and therefore the refractory bricks can be punched and formed in all directions; refractory bricks can be formed more uniformly, the density gradient is reduced, then the cracking phenomenon is reduced, the forming quality of the refractory bricks is improved, downward stamping force of the upper die can be converted into stamping force of the side face and the bottom face through a reversing stamping part arranged in the side die and a lower stamping part arranged in the lower die, all-directional stamping forming is achieved, and the production efficiency is improved. The fixed separating pieces are arranged between the adjacent side dies, the situation that formed refractory bricks are adsorbed on the side dies and are difficult to take out is prevented through side die separation, discharging is more convenient and efficient, meanwhile, abrasion of the side dies and the refractory bricks caused by friction between the refractory bricks and the side dies during discharging can be avoided, the side dies are protected, and the forming quality of the refractory bricks is improved.

The utility model discloses a brick making device using construction waste. The brick making device comprises a rack and a driving unit. A supporting plate is placed at the lower end in the machine frame, a brick mold frame is slidably connected to the middle of the machine frame, a brick mold is slidably connected to the interior of the brick mold frame and located above the supporting plate, an upper mold base is slidably connected to the upper end in the machine frame, an upper mold is slidably connected to the lower end of the upper mold base, and the upper mold and the brick mold are arranged in a matched mode; the driving unit comprises a sliding seat and an eccentric shaft, the sliding seat is arranged at the right end of the brick mold, the eccentric shaft is rotatably connected to the right end of the brick mold frame, the upper end of the eccentric shaft is slidably connected with a long sliding hole in the right end of the sliding seat, and a PLC is arranged on the front side face of the rack. And meanwhile, the closing and positioning precision of the brick mold is high, and the brick making quality of the construction waste is improved.

The present invention relates to the technical field of concrete vibration, and in particular to an intelligent concrete vibration method and system. The method comprises determining concrete flow parameters based on sampled image information, determining whether concrete vibration parameters are qualified based on the concrete flow parameters, determining whether concrete vibration parameters are qualified based on bubble variation characterization values, and adjusting the concrete vibration parameters when abnormalities are determined. The vibration parameters include vibration frequency, vibration amplitude, and vibration duration. Vibration problems existing during on-site construction can be promptly identified, and vibration parameters can be adjusted when abnormalities occur, thereby ensuring the quality of concrete vibration.

The utility model discloses a baffle assembly for controlling the extrusion speed of outer hole pug, which comprises a mold core, a mold frame and a plurality of mold nails, a pug speed control mechanism is arranged behind the mold core, the pug speed control mechanism comprises a material blocking assembly, the material blocking assembly is arranged behind the mold core and is arranged at the position of a discharge port of an extruder, the material blocking assembly comprises an outer frame body, and the outer frame body is arranged on the mold core. A square groove is formed in the outer frame body, the inner surface of the square groove is arranged in a stepped mode, and material stopping blocks are installed on the four inner walls of the square groove. According to the baffle assembly for controlling the extrusion speed of the outer hole pug, the material blocking assembly is designed to be installed at the feeding end of a honeycomb mold, the amount of materials entering the outermost circle of pug passing holes is controlled through a square structure composed of limiting blocks of the material blocking assembly, then the discharging speed of an outer seam is reduced, the discharging speed is kept consistent with that of an inner seam, and a finished product has high compressive strength; and the practicability of the mold in use is improved.

The utility model relates to the technical field of preparation of aluminum silicon carbide carbon bricks, and discloses a brick pressing device for preparation of high-strength aluminum silicon carbide carbon bricks, the brick pressing device comprises a rack, and the rack is internally provided with a movable butt joint feeding structure; a top brick pressing mechanism is arranged at the top of the rack, the movable butt joint feeding structure comprises a side supporting frame fixedly installed at the top of the rack, and a storage box is fixedly installed at the top of the side supporting frame. According to the brick pressing device for preparation of the high-strength aluminum silicon carbide carbon bricks, a first motor drives an auger to rotate so that carbon brick preparation materials stored in a storage box can be guided out and fall on the top of a filling through cylinder, and then a second motor drives a lead screw to rotate in the forward direction so that the filling through cylinder can be driven to move to the bottom of a top inserting mold; and then the top inserting mold descends, the bottom inserting mold ascends, materials of the filling through cylinder can be extruded, a plurality of hydraulic cylinders are unfolded to push the bottom inserting mold to continue to ascend, the carbon bricks extruded and formed in the filling through cylinder can be ejected out of the outside, and therefore the effect of convenient use is achieved.

The present disclosure relates to the field of additive manufacturing, more specifically to three-dimensional (3D) printing of mortar with vertical mesh reinforcement insertion and a printing system (20) comprising it, for the construction area. The present disclosure comprises a print head device (1) for additive manufacturing providing structural reinforcement in the form of a mesh, allowing the mesh to go through the printing device while not dragging the printed material - mortar-with it.

The invention relates to the technical field of permanent magnetic ferrite product production, and particularly discloses a permanent magnetic ferrite wet-pressing magnetic shoe mold which comprises a middle mold, an upper mold and a lower punching mold, a middle mold outer arc, a middle mold outer arc bevel edge and a middle mold plane are arranged in the middle mold, the middle mold is provided with a cavity, and the cavity is provided with a material injection port; an upper die outer arc, an upper die outer arc bevel edge and an upper die plane are arranged in the upper die, an arc-shaped top face is arranged in the upper die, and a water pumping groove is formed in the upper die. The die comprises a middle die, an upper die and a lower stamping die, in the assembling process of the middle die, the upper die and the lower stamping die, in the upper die outer arc, the upper die outer arc bevel edge, the upper die transition fillet and the upper die plane sequentially correspond to the middle die outer arc, the middle die outer arc bevel edge, the middle die transition fillet and the middle die plane in an up-down mode through the upper die outer arc, the upper die outer arc bevel edge, the upper die transition fillet and the upper die plane, and the lower stamping die is connected with the middle die in an inserted mode. The matching degree between the upper mold and the middle mold is good, raw materials are not prone to leakage, stress in the product demolding process is small, and the frequency of knife edge cracks of products is reduced.

The utility model discloses a compression molding device for sulfur-resistant magnesium aluminate spinel production, which comprises a base, the base is of a square structure, and the surface of the base is fixedly connected with a shell; a transverse plate is fixedly connected to the surface of the shell, a lower mold is fixedly connected to the surface of the transverse plate, vertical rods are symmetrically and fixedly connected to the surface of the transverse plate, a top plate is fixedly connected to the other ends of the vertical rods, and a moving mechanism is arranged on the surface of the base. And the tail end of the air cylinder is fixedly connected with an upper mold shell. According to the compression molding device for sulfur-resistant magnesium aluminate spinel production, the moving mechanism is arranged, so that materials can be conveniently processed, an upper mold moves into a lower mold, the materials are pressurized, bricks are formed, the upper mold drives a cutting knife to move downwards, the materials are cut, the bricks are formed by the materials, and the bricks are produced in batches; and the brick production efficiency is improved, and the practicability of the device is improved.

The invention discloses equipment for producing various building materials, which comprises a supporting base, outer side plates are arranged at the two ends of one side of the top of the supporting base, first rails are arranged at the tops of the outer side plates, first sliding blocks matched with the first rails are arranged on the first rails, a first mold supporting plate is transversely erected at the tops of the first sliding blocks, and a second mold supporting plate is arranged at the top of the first mold supporting plate. A first lower die is arranged at the top of the first die supporting plate, main belt wheels are arranged on the two sides of the upper portion of the inner side of the outer side plate on one side, a first secondary belt wheel and a second secondary belt wheel are arranged above and below the side edge of each main belt wheel, and the main belt wheels are connected with the first secondary belt wheels and the second secondary belt wheels through belts. A conveying shaft is connected to the middle of the main belt wheel on one side, and the output shaft penetrates through the outer side plate and is connected with a first driver installed at one end of the outer portion of the outer side plate. The method has the beneficial effects that the produced building materials are high in universality, low in manufacturing cost, high in production efficiency, low in rejection rate and high in utilization rate of raw materials.

The current invention relates to a cutting device (2) and related method for cutting an extruded strand (3) into parts (44) for forming bricks or slips (4). The strand (3) is cut in a direction (H) transverse to its longitudinal direction (L), whereby first (5) and second (6) cutting faces of the parts (44) are formed, in addition to the extruded faces (7-10). The cutting device (2) comprises a transverse cutting knife (11) with a blade (12), comprising a first partial blade (13) and a second partial blade (16) at an angle (α) to the first partial blade (13), for correspondingly providing a first said cutting face (5) with a first partial cutting face (15), at a first edge (15a) adjacent to a first said extruded face (7), and a second partial cutting face (18), at said angle (α) to the first partial cutting face (15) at a second edge (15b) of the first partial cutting face (15) away from the first edge (15a).

Systems, methods and devices to create a wall system having a cross sectional density gradient obtained by structural 3D printing are disclosed. A mechanism is described that accepts a cementitious material and combines it with a gaseous bubble mixture and then partially mixes the various materials in such a controlled manner as to create a density gradient. The gaseous mixture may be primarily composed of carbon dioxide.

The present invention relates to a system for three-dimensional printing of a concrete structure (2) with a fresh cementitious mixture comprising reinforcement means (3), said system comprising: a robot arrangement (20), said robot having a print head (5) attached thereto as an end effector; a mortar mixing unit (4): a nozzle (6); two or more spools (11), arranged for dispensing said reinforcement means through said nozzle (6), said two or more feeding units (12) comprises a motor for independent speed control of each elongated reinforcement element; wherein said reinforcement means comprise two or more elongated reinforcement elements; a control unit (23); wherein said two or more feeding units (12) is arranged for speed control of the speed at which the two or more elongated reinforcement elements are dispensed into the said fresh cementitious material; wherein the said control unit (23) is arranged to control said feeding unit for independent speed control of each elongated reinforcement element to compensate for a difference in distance in said concrete filament along said print path, between said two or more elongated reinforcement elements in curved sections of said print path.

To provide a production method for a mold suppressing generation of crack or melting defect generated in a honeycomb filter through heat impact by partial exothermic heat and acute temperature change in exhaust gas without increasing pressure loss and for a honeycomb molding.SOLUTION: A mold to form a honeycomb molding for a honeycomb segment with an outer peripheral wall thicker than a partition wall through extrusion is provided with a mold body and a guide ring attached on an outer peripheral side of the mold body. The mold body comprises: a first surface where a cray supply hole opens; a second surface placed opposite to the first surface, where grate slits in communication with the cray supply hole opens; and a third surface positioned at an opposite side of the first surface and at an outer periphery of the second surface, the second surface constitutes an area forming a grid-like partition wall in a honeycomb body, the third surface constitutes an outer peripheral area forming the outer peripheral wall, the second surface is higher than the third surface by a step part H, and the guide ring has a gap between the third surface and itself and an opening with an enough size to cover the outer peripheral side part of the outer peripheral area.SELECTED DRAWING: Figure 7(b)

A mold for producing a filler member from a liquid ceramic composition, the mold comprising a first portion and a second portion, the first portion and / or the second portion having an open mold cavity, the first and second portions operable to engage to form a closed mold cavity, the mold further comprising a reservoir-forming member, the mold operable to be moved from an open position in which the first and second portions are at least partially spaced apart so that the reservoir member forms the reservoir cavity and the mold cavity is open, to a partially closed position in which the position of the reservoir cavity moves relative to the mold cavity and / or the volume of the reservoir cavity is reduced, and further to a closed position in which the first and second portions engage to close the mold cavity.

The application relates to a pit mud preparation system, which comprises a feeding device through which pit mud is fed, a first cutting device which cuts the pit mud, a first conveying device, a second cutting device which cuts the pit mud again, a second conveying device, a first stirring device which stirs the pit mud after adding water, a granulating device which prepares the pit mud into strips, a third conveying device, a second stirring device which stirs the pit mud again after adding water, and a forming box. The application can improve the uniformity of the pit mud when the pit mud is cut through the first cutting device and the second cutting device. The pit mud is stirred twice through the first stirring device and the second stirring device, and the pit mud is granulated again through the granulating device between the two times of water stirring, so that the soaking effect of the pit mud is improved, the phenomenon that the pit mud is dry and wet after water stirring is avoided, the stirring effect of the pit mud is guaranteed, and the quality of the prepared pit mud is guaranteed.

The 3D printing apparatus includes a stage that provides a support base for the object; first and second discharge nozzles arranged on the stage to respectively discharge a first material in a paste or slurry state that forms the outline of the object and a second material in a liquid state that fills a filling space surrounded by the outline of the object made of the first material; an extrusion device connected to the first discharge nozzle that extrudes the first material toward the first discharge nozzle to discharge the first material in a paste or slurry state that is a mixture of ceramic particles and a matrix in which the ceramic particles are dispersed; a heating funnel connected to the second discharge nozzle that uses a metal block as an input and melts the metal block to discharge the second material in a liquid metal flow state formed by melting the metal block through the second discharge nozzle; and a heating chamber that houses the stage and provides a space for slowly cooling the first and second materials accumulated on the stage from the first and second discharge nozzles.

The high-precision constant-speed honeycomb ceramic extruding machine comprises a main machine, an automatic material conveying mechanism, a segmented material cutting mechanism, a hydraulic station and an automatic control device, the main machine comprises an upper cross beam, a material cavity beam plate and stand columns, a hydraulic plunger is fixedly arranged on the upper cross beam, a main column rod and an ejector rod are arranged in the hydraulic plunger, and the lower end of the main column rod is connected with a movable mold frame; the lower end of the ejector rod penetrates through the movable die frame and is fixedly provided with a pressing head, a pressing sleeve is arranged between the vacuum sealing plate and the ejector rod, a die sleeve assembly is fixedly arranged on the material cavity beam plate, the vacuum sealing plate and the upper end face of the die sleeve assembly are tightly sealed, and a material cavity in the die sleeve assembly is vacuum. The pressing head can stretch into the cavity material in a sealed mode and press pug in the material cavity out of the die sleeve assembly. The four-column type honeycomb ceramic extruder is high in precision, large in pressure, high in vacuum degree, constant in extrusion speed and good in sealing ring effect, the production efficiency can be improved, the production cost can be reduced, and the product quality can be improved.

The present invention discloses a novel design of a lower mold with a transfer portion. The lower mold with a transfer portion is used in an airtight continuous atmosphere sintering hot pressing forming device, wherein: the lower end outer edge of the lower mold has a transfer portion that is larger than the outer edge of the lower mold and is integrally processed and formed with the lower mold. The transfer portion is in direct contact with the lower heating plate and directly conducts heat to the lower heating plate. In addition to having the effect of continuous, high-efficiency and high-quality hot pressing forming products, it also has consistent and better heating and cooling speeds.

The present invention relates to a device for producing a porous tubular support from a ceramic composition by extrusion, comprising: a fixed extrusion die (6) fitted with a punch holder (7) provided with a centrally located straight punch (8a) and at least one helical punch (8) wound around an axis of symmetry (X) along a winding direction and winding pitch; a system (10) for rotationally driving the punch holder (7) about said axis of symmetry (X) along a direction of rotation opposite to the winding direction of the punch (8) and at a rotational speed coordinated with the linear extrusion speed of the ceramic composition.

A drainage plate (10) for an extruder assembly including a body (12) having an inner edge (14) and an outer edge (15). A seal portion (24) of the body extends radially from the inner perimeter toward the outer perimeter. One of more drainage features are located radially outward of the seal portion. The one or more drainage features extend an axial depth into the body such that a first thickness (t1) of the drainage plate at the seal portion is greater than a second thickness (t2) of the drainage plate at the one or more drainage features. Methods of manufacturing a drainage plate and manufacturing ceramic articles are also disclosed.

The utility model relates to the technical field of water permeable bricks, and discloses an extrusion forming device for water permeable brick production, which comprises a working table, a cleaning mechanism is arranged outside the working table, a filtering mechanism is arranged outside the working table, the cleaning mechanism comprises a cleaning frame, a groove is formed in the bottom of the cleaning frame, and the filtering mechanism is arranged in the groove. A groove is formed in the bottom of the cleaning frame, an adjusting assembly is arranged in the groove, a mounting seat is arranged at the bottom of the adjusting assembly, an air cylinder is fixedly connected to the bottom of the mounting seat, a pressing plate is mounted at the bottom of the air cylinder, a cleaning box is arranged at the bottom of the cleaning frame, a cleaning brush is arranged in the cleaning box, and a first motor is mounted at the bottom of the cleaning brush. According to the extrusion forming device for water permeable brick production, the pressing plate is cleaned through the cleaning mechanism, so that raw materials cannot be attached to the bottom of the pressing plate, and the next use of the pressing plate cannot be affected.

The utility model relates to the technical field of punch forming, in particular to a silicon carbide ceramic special-shaped part near-net forming device which comprises a seat body, conveying structures are arranged at the left end and the right end of one side of the seat body, a raw material storage structure capable of transversely moving is connected between the two conveying structures, and a forming lower die is arranged below the other side of the seat body. And a supporting frame is fixedly installed over the forming lower mold and fixedly installed at the top of the base body, a driving air cylinder is installed at the top of the supporting frame, and the output end of the bottom of the driving air cylinder is fixedly connected with an upper mold base. And then the solid raw materials are conveyed to the position beside the forming device through the conveying structure, then the storage rack is lifted to a certain height through the lifting air cylinder, meanwhile, the electric push rod is used for driving the material pushing plate to push the solid raw materials to the slope end, and the solid raw materials are conveyed into a forming lower mold through the slope.

To provide a production method for a mold suppressing generation of crack or melting defect generated in a honeycomb filter through heat impact by partial exothermic heat and acute temperature change in exhaust gas without increasing pressure loss and for a honeycomb molding.SOLUTION: A mold to form a honeycomb molding for a honeycomb segment with an outer peripheral wall thicker than a partition wall through extrusion is provided with a mold body and a guide ring attached on an outer peripheral side of the mold body. The mold body comprises: a first surface where a cray supply hole opens; a second surface placed opposite to the first surface, where grate slits in communication with the cray supply hole opens; and a third surface positioned at an opposite side of the first surface and at an outer periphery of the second surface, the second surface constitutes an area forming a grid-like partition wall in a honeycomb body, the third surface constitutes an outer peripheral area forming the outer peripheral wall, the second surface is higher than the third surface by a step part H, and the guide ring has a gap between the third surface and itself and an opening with an enough size to cover the outer peripheral side part of the outer peripheral area.SELECTED DRAWING: Figure 7(b)

The invention relates to the technical field of brick making equipment, and discloses all-solid waste sintering brick making equipment which comprises a base, a brick making equipment body arranged at the top of the base, an extrusion pipe connected with the brick making equipment body and an extrusion mold connected with the extrusion pipe, and a spraying assembly is arranged at the position, close to the discharging end of the extrusion mold, of the top of the base. The spraying assembly comprises a box body, the box body is arranged at the top of the base, and a pipe body is arranged on the inner side wall of the box body; the water pipe I is arranged on the box body and is communicated with the pipe body; the spray head is arranged on the inner side wall of the pipe body and communicates with the pipe body, a humidifying assembly is arranged on the inner side wall of the box body, and the humidifying assembly comprises a first roller body and a second roller body, and the first roller body is rotationally connected to the box body; treatment is conducted through the spraying assembly, the sprayers arranged on the equipment in an annular array mode evenly spray water to the outer surfaces of the mud strips, the moisture content of the surfaces of the mud strips is effectively guaranteed, and therefore the sun crack phenomenon in the follow-up link is obviously reduced.

This invention belongs to the field of crucible preparation technology, specifically relating to a method for preparing an alumina crucible, comprising the following steps: Step 1: preparing a mixed solution and placing it in a ball mill; Step 2: obtaining a composite alumina slurry in the ball mill; Step 3: preparing composite alumina powder from the composite alumina slurry; Step 4: adding a binder to the composite alumina powder to obtain an alumina mixture; Step 5: molding the alumina mixture using a mold to obtain a crucible blank, wherein the mold forming process is a double-sided suction process. Compared with the prior art, the advantages and positive effects of this invention are: the double-sided suction process adsorbs fine particles in the material onto the product surface, while coarse particles are located in the middle layer of the product, thereby greatly improving the surface roughness of the finished alumina crucible, making the size of the alumina crucible more controllable, eliminating the need for a wax removal process, and effectively reducing the risk of the surface of the finished alumina crucible peeling off during use.

A method of forming an extrusion, the method including steps of: receiving a flow of extrudable material; extruding a plurality of flow streams from the flow of extrudable material; inducing a change in volumetric flow rate of at least one of the flow streams relative to another one of the flow streams; and combining each of the flow streams to form an extrudate having a velocity gradient.

Systems, methods and devices to create a wall system having a cross sectional density gradient obtained by structural 3D printing are disclosed. A mechanism is described that accepts a cementitious material and combines it with a gaseous bubble mixture and then partially mixes the various materials in such a controlled manner as to create a density gradient. The gaseous mixture may be primarily composed of carbon dioxide.

The invention relates to a method and a 3D building material printer (1), in particular a 3D concrete printer, for the 3D printing of building material strands (2), in particular concrete strands, comprising: a building material outlet nozzle (3) with a building material outlet opening (4) for letting out building material; a longitudinal reinforcement element discharge device (6) with a longitudinal reinforcement element discharge opening (18) for discharging a longitudinal reinforcement element (12); and a longitudinal reinforcement element guide (11) for guiding the longitudinal reinforcement element (12) to the longitudinal reinforcement element discharge opening; an advancing apparatus for advancing the building material outlet nozzle (3) and the longitudinal reinforcement element discharge device (6) in a longitudinal direction (10) such that a building material strand (2), which extends in the longitudinal direction (10), can be printed from the building material coming out of the building outlet nozzle (3), wherein the longitudinal reinforcement element guide () extends into the interior of the building material outlet nozzle (3) such that the longitudinal reinforcement element (12) can be discharged into the outlet cross-section of the building material at the building material outlet opening (4), wherein the longitudinal reinforcement element discharge device (6) is configured to embed the longitudinal reinforcement element (12) in the interior of the building material strand (2) in the longitudinal direction (10) of the building material strand (2), wherein a lifting and / or lowering apparatus (13) is provided by means of which the longitudinal reinforcement element (12) discharged into the outlet cross-section of the building material at the building material outlet opening (18) and embedded in the building material strand (2) is guided out of the building material strand (2) at lifting and / or lowering points (14) transverse to the longitudinal direction (10) such that the building material strand (2) can be connected, at the lifting and / or lowering points (14), to a building material strand (2) lying thereabove or therebelow.