77results about "Rams/plungers" patented technology

The utility model relates to the technical field of aluminum extruders, and discloses an aluminum extruder cake-free extrusion prevention recognition device which comprises a base, a fixing disc is fixedly connected to the top of the right side of the base, a hydraulic cylinder is fixedly connected to the left side of the fixing disc, and the output end of the hydraulic cylinder is rotationally connected with a pushing column. Fixing plates are fixedly connected to the front end and the rear end of the top of the base, supporting rods are fixedly connected to the tops of the fixing plates, rolling shafts are fixedly connected to the tops of the supporting rods, the fixing plates are fixedly connected to the front ends of the rolling shafts at the front ends, and photoelectric sensors are fixedly connected to the rear ends of the fixing plates. According to the aluminum cake clamping device, the pushing column, the driven gear, the driving gear and other components move, finally, the clamping plate at one end of the movable plate is used for clamping an aluminum cake, the aluminum cake is accurately positioned and reliably clamped, it is guaranteed that the aluminum cake can be kept in a stable position state in the subsequent operation processes of pushing, machining and the like, and machining efficiency is improved. And the situation that the machining precision is affected by deviation, shaking and the like is avoided, and the machining quality can be improved.

A dummy block for a metal extrusion press includes: a generally cylindrical base having a forward surface and an outwardly extending circumferential flange; an expandable collar coupled to the base, the collar having an inwardly extending circumferential rib abutting the circumferential flange; a plunger disc seated against the forward surface of the base and accommodated by the collar; and a plunger shaft extending through the plunger disc and coupled to the base.

The invention belongs to the technical field of extruders, and particularly relates to a novel double-layer extrusion rod structure which comprises a main oil cylinder, a piston bracket fixedly installed on a piston of the main oil cylinder through a bolt, a core rod installed in the middle of the other side of the piston bracket, and an inner sleeve rod arranged outside the core rod in a sleeving mode. The inner sleeve rod is fixedly connected with the piston bracket through a pressure pad and a bolt, an outer sleeve rod is sleeved outside the inner sleeve rod, a cross beam is sleeved on one side, close to the piston bracket, of the inner sleeve rod, a pressing sleeve is sleeved on one end, close to the cross beam, of the outer sleeve rod, the pressing sleeve is fixedly connected with the outer sleeve rod through a bolt, and the pressing sleeve is fixedly connected with the cross beam through a bolt. A plurality of auxiliary oil cylinders are distributed on the piston bracket, and pistons of the auxiliary oil cylinders are fixedly connected with the cross beam. In the process of extrusion production of the layered composite pipe or the composite rod, higher pressure can be independently applied to the outer-layer blank, so that the flowing speed of the outer-layer material can be matched with the flowing speed of the inner-layer material.

The invention discloses a vacuum extrusion device for preparing titanium and titanium alloy, relates to the technical field of titanium and titanium alloy preparation, and aims at solving the problems that an existing device is prone to sealing failure, not thorough in cleaning and low in temperature control precision. The device comprises a vacuum chamber, an extrusion rod, an air passage system, an air source distributor, a temperature monitoring module and an external control module. The working section of the extrusion rod is provided with three sections of spiral grooves, and precise coupling of dynamic sealing, self-cleaning and temperature field regulation and control is achieved through cooperation of an air channel system and multiple air channels. The first section of main sealing spiral groove forms a high-pressure air curtain, the second section of temperature control spiral groove adjusts the temperature in a self-adaptive mode through a shape memory alloy ring, and the third section of cleaning spiral groove conducts deep cleaning through the reverse suction effect. And the external control module adaptively regulates and controls each gas path according to temperature and impurity concentration monitoring data, so that the structure is simplified, the efficiency is improved, the product quality stability is guaranteed, and the batch production requirements of high-quality titanium and titanium alloy are met.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

The present invention relates to the technical field of door and window processing, and particularly relates to a profile extrusion forming device for intelligent door and window production, including a main base. A rotating frame is fixedly installed on the main base, and a rotating disk is rotatably installed on the rotating frame. A plurality of insertion slots evenly distributed along its circumferential direction are formed on the outer wall of the rotating disk, and a shaping module is inserted into each of the plurality of insertion slots. Symmetrically arranged moving tracks are formed at the bottom of the main base, and a plurality of evenly distributed positioning hydraulic cylinders are fixedly installed at the bottom of the main base. The telescopic ends of the plurality of positioning hydraulic cylinders are fixedly installed with positioning cogs. The present invention designs a shaping module, and the extrusion forming of profiles can be realized through the cooperation of a shaping inner core and a shaping sleeve. At the same time, the profiles can be continuously pressure-maintained and protected after extrusion forming, avoiding the deformation of the profiles during subsequent conveying or cooling, greatly improving the qualified rate of profile production, and reducing the production cost of intelligent doors and windows.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container. The rotary piston and the stem are configured to rotate and move axially such that the stem moves the billet through the container to extrude a part, and the container and the billet are configured to rotate together while the container does not move axially.

The L-shaped extrusion die comprises an extrusion part and a mounting plate connected through a guide column arranged at the top of the extrusion part, a plurality of first pushing devices are evenly arranged at the bottom of the mounting plate in the circumferential direction in an array mode, the output ends of the first pushing devices are connected with a pressing plate, and the guide column penetrates through the pressing plate. The bottom of the pressing plate is connected with a male die assembly with the cylindrical upper half portion and the truncated-cone-shaped lower half portion. An extrusion cavity matched with the male die assembly in shape is formed in the extrusion part under the male die assembly, a mounting groove is formed in the bottom of the extrusion part from the side wall to the bottom of the extrusion cavity, and the cylindrical female die is clamped in the mounting groove through peripheral flanges; a through L-shaped discharging opening is formed in the center of the female die and right faces the center of the bottom of the extrusion cavity, and the inner diameter of the discharging opening is gradually reduced from top to bottom. Through multi-stage extrusion and pushing of the device, the uniform wall thickness of a finished product can be effectively ensured, bumps in the product are avoided, and defective products are reduced; meanwhile, the female die can be replaced in time, and product quality is improved.

The invention provides hot extrusion forming equipment for I-shaped aluminum alloy profile production, and relates to the technical field of aluminum alloy forming machining. The hot extrusion forming equipment for I-shaped aluminum alloy profile production comprises an extrusion cylinder, a separation type extrusion rod is arranged on the rear side of the extrusion cylinder, the separation type extrusion rod is installed on a hydraulic driving part, a heat preservation end is rotationally connected to the front side of the extrusion cylinder, and a discharging cylinder is rotationally connected to the front side of the heat preservation end. A flow storage box is installed at the position, close to the rear side, of the outer side wall of the discharging barrel, an extrusion mold is installed in the outer side wall of the discharging barrel, and a trimming and pressurizing assembly is installed on the outer side wall of the extrusion mold. The problem of poor combination of continuous forming of the two sections of aluminum blanks is solved, and extrusion force in the radial direction and the axial direction is applied to the combination position of the two sections of aluminum blanks through the separated extrusion rod and the hammering assembly, so that the strength of the combination position of the two sections of aluminum blanks is obviously improved.

Shear-assisted extrusion assemblies are provided. The assemblies can include a billet containing assembly containing a billet comprising a billet outer material and a billet inner material in at least one cross-section; a tool operably engaged with the billet; an extrudate receiving channel configured to receive extrudate from the tool, wherein the extrudate comprises extruded outer material and extruded inner material in at least one cross-section, the extruded outer material being the same material as the billet outer material, and the extruded inner material being the same as the billet inner material. Methods for producing multi-material shear-assisted extrudate are also provided.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston, wherein the main piston exerts the axial extrusion force on the stem, and at least one piston motor to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container configured to drive a rotational movement of the container. The rotary piston and the stem are configured to rotate and move axially such that the stem moves the billet through the container to extrude a part, and the container and the billet are configured to rotate together.

An extrusion device includes an extrusion chamber, a die assembly having an internal cavity in communication with the extrusion chamber, and a dummy block configured to push a billet of material from the extrusion chamber through the internal cavity of the die assembly to form an extruded profile, a surface of the dummy block in contact with the billet of material being a non-uniform surface.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

The utility model discloses a material ejecting device for aluminum bar hot shearing. The material ejecting device comprises an extruding machine cross beam, a movable extruding base structure, an extruding base upper sliding block, an extruding base lower sliding block, a movable push rod, a transmission rack, a transmission gear and a transmission motor. The movable extrusion seat structure is arranged on one side of the extruder cross beam; the extrusion seat upper sliding block and the extrusion seat lower sliding block are respectively arranged at the upper part and the lower part of the movable extrusion seat structure; the movable push rod is horizontally arranged on one side of the movable extrusion seat structure, the transmission rack is fixed to the movable push rod in the length direction of the movable push rod, the power output end of the transmission motor is sleeved with the transmission gear, and the transmission gear is meshed with the transmission rack; and under the driving of the transmission motor, the movable extrusion seat structure horizontally slides in the length directions of the extrusion seat upper sliding block and the extrusion seat lower sliding block. High-precision transmission of gear and rack meshing transmission is adopted to replace an original oil cylinder transmission mode, and the production line adaptability of the aluminum profile extruding machine is improved.

The application provides an aluminum alloy profile extrusion forming machine and relates to the technical field of metal processing. A first flow channel and a liquid supply member are arranged on a rack. One end of the first flow channel extends to the hole wall of a through hole of an extrusion section, and the other end is in communication with the liquid supply member. The lubricating liquid of the hole wall of the through hole of the extrusion section lubricates the billet and the piercing needle and reduces the first friction therebetween. With the extrusion of the billet, the lubricating liquid of the hole wall of the through hole of the extrusion section is gradually consumed and the first friction is gradually increased. When the first friction is greater than a preset value, it indicates that the lubricating effect between the billet and the piercing needle is poor. The liquid supply member delivers the lubricating liquid into the first flow channel to extrude the lubricating liquid in the first flow channel to the hole wall of the through hole of the extrusion section, thereby saving the lubricating liquid, ensuring the lubricating effect between the billet and the piercing needle, reducing the first friction therebetween, reducing the wear of the piercing needle, prolonging the service life of the piercing needle, reducing the damage to the inner surface of the profile, improving the product quality, and reducing the overall energy consumption of the equipment.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

The invention discloses an extruding machine for aluminum material manufacturing, and relates to the technical field of aluminum material manufacturing, the extruding machine comprises an extruding machine main body of a rectangular frame structure, and the top end of one side of the extruding machine main body is fixedly connected with an extruding cylinder which is used for containing a metal blank and applying high pressure to metal in the extruding process; the bottom end of the extrusion cylinder is fixedly connected with an extrusion plate used for making direct contact with a metal blank in the extrusion process, the two sides of the upper surface of the extrusion machine body are slidably connected with extrusion rods used for pushing the metal blank forwards, and the inner walls of the two sides of each extrusion rod are provided with annular pressure adduction mechanisms. A surface pressing and rolling mechanism is arranged below the extruding plate, driven cooling mechanisms are arranged on the two sides of the upper portion of the extruding machine body, through mutual cooperation of an extruding ring with a rod and an inner gear and an annular pressing and inward contracting mechanism, pressure can be evenly applied to the periphery or multiple circles in multiple directions, and therefore flowing of metal blanks is better controlled, and the extrusion efficiency is improved. And overhigh local stress caused by pressure concentration is avoided.

The invention provides a system for machining a fork-shaped end based on warm extrusion, and relates to the technical field of machining, the system for machining the fork-shaped end based on warm extrusion comprises a warm extrusion forming device which comprises a metal extruder, a first extrusion die and a second extrusion die, the metal extruder is used for sequentially extruding a metal blank with the temperature lower than the recrystallization temperature and higher than the recovery temperature into the first extrusion die and the second extrusion die; a bending channel is arranged in the first extrusion die, and a forming channel is arranged in the second extrusion die; the linear cutting device is used for cutting the long-strip-shaped fork-shaped end blank into a plurality of fork-shaped end blanks; and the bending forming device is used for bending and forming the fork-shaped end blank to obtain the fork-shaped end piece. Compared with the prior art, the system for machining the fork-shaped end based on warm extrusion has the advantages that the mechanical property of the fork-shaped end is improved, and the production efficiency is improved.

The application relates to an aluminum pipe extrusion system and relates to the technical field of aluminum pipe forming, and comprises a cylindrical outer mold, a first disc body and a plurality of outlet end molds. The cylindrical outer mold can slide along the axis thereof, and the axial two ends of the cylindrical outer mold are provided with a first opening and a second opening. The first disc body can rotate so that the position of each outlet end mold can be matched with the position of the cylindrical outer mold, and then when the cylindrical outer mold slides to the direction close to the first disc body, the first matching part can be inserted into the cylindrical outer mold from the first opening. When the first disc body rotates, different outlet end molds can be matched with the cylindrical outer mold. When an outlet end mold of a certain model is damaged, other outlet end molds in the same group can be used. When another aluminum pipe of a different shape needs to be formed, an outlet end mold in the corresponding group can be used. Therefore, the outlet end mold can be quickly replaced, and the aluminum pipe forming efficiency is improved.

A system for performing shear-assisted extrusion can include a die tool, a headstock, a midstock, and a tailstock. The die tool can include a face configured to engage and plasticize a portion of feedstock material engaged with the face. The die tool can define an opening to receive plasticized feedstock material therethrough. The headstock can be secured to the die tool. The headstock and the die tool can be together rotatable about a central axis to generate a rotation-induced shear force between feedstock material and the die tool to extrude the feedstock material through the opening of the die tool. The midstock can be configured to support the feedstock material at least partially therein. The tailstock can be configured to translate along the central axis relative to the headstock and the headstock to generate an axial extrusion force between the feedstock material and the die tool.

The push-pull nozzle mechanism comprises an extrusion pad, an installation frame and a nozzle mechanism, the installation frame is located on one side of the extrusion pad, and the nozzle mechanism is installed on the installation frame. The nozzle mechanism comprises a driving part and a nozzle, the nozzle can move close to or away from the extrusion pad, and the driving part is connected with the nozzle, drives the nozzle to move close to or away from the extrusion pad and sprays the extrusion pad when moving close to the extrusion pad. An extruding machine comprises a machine body and a push-pull nozzle mechanism capable of being used for the extruding machine, an extruding rod is arranged in the machine body, and an extruding pad is connected with the extruding rod; the mounting frame is mounted on the periphery of the machine body. The nozzle is installed on the side close to the extrusion pad through the installation frame, when the extrusion pad needs to be sprayed, only the driving piece needs to be started to drive the nozzle to move close to the extrusion pad, then the parting agent is sprayed to the extrusion pad through the nozzle, shutdown operation and manual spraying are not needed in the spraying process, automatic spraying of the parting agent is achieved, the production efficiency is improved, and the production cost is reduced. Meanwhile, the operation is safer.

The present disclosure provides a shear assisted extrusion press comprising a stem and plunger assembly comprising a main piston configured to generate an extrusion force, a stem assembly comprising a stem having a first end and a second end, wherein the second end connects to a rotary piston that connects to the stem and plunger assembly, wherein the main piston exerts the extrusion force on the stem such that the stem moves axially, and at least one piston motor coupled with the stem and configured to drive a rotational movement of the rotary piston and the stem, and a container assembly comprising a container holder, a container configured to receive a billet and the first end of the stem, and at least one hydraulic motor positioned in the container holder with the container, wherein the at least one hydraulic motor is configured to drive a rotational movement of the container.

A system for performing shear-assisted extrusion can include a front fixed endstock and a rear fixed endstock. The system can include a front movable headstock and a rear movable headstock. The system can include a die tool connected to the front fixed endstock. The die tool can include a face configured to engage and plasticize a face of feedstock material. The die tool can define an opening to receive plasticized feedstock material therethrough. The system can include a front spindle supported by the front movable headstock. The front spindle can be rotatable to rotate the feedstock material with respect to the front movable headstock. The system can include a rear spindle connected to the rear movable headstock, the rear spindle rotatable with respect to the rear movable headstock and the die tool.

The invention relates to the technical field of end socket processing, in particular to a low-temperature liquid storage tank end socket processing method capable of reducing ferrite content, which comprises the following steps: S1, pre-press forming: pre-press forming is performed on a stainless steel plate by using a drum beating machine, and the steps are as follows: S1-1, multi-point drum beating is performed on the stainless steel plate from a center circle to an edge circular ring to complete one-time drum beating; s1-2, secondary drum beating is completed; s1-3, third-time drum beating is completed, and a pre-pressed part is obtained; s2, heating is conducted, specifically, a pre-pressed piece obtained in the step S1 and the step S3 is put into a furnace to be heated; s3, spinning forming is conducted, specifically, spinning forming is conducted on the pre-pressed part heated in the S2, and the end socket is obtained; multi-point bulging is carried out in the sequence from the center circle to the edge circular ring, and the pressing pressure is gradually adjusted, so that the stainless steel plate can be uniformly deformed in the pre-pressing forming process, local stress concentration is avoided, formation of ferrite is inhibited, and the ferrite content is reduced.

The invention belongs to the technical field of superconducting material processing engineering, and particularly relates to a continuous stepped extrusion method for an NbTi / Cu single-core ingot. According to the method, an assembled NbTi / Cu single-core ingot is extruded by adopting a ring type combined extrusion rod and a continuous stepped extrusion female die. The single-core ingot structure comprises a Cu wrapping sleeve lower cover, a Cu wrapping sleeve cylinder, a Cu wrapping sleeve upper cover, an NbTi core rod and a Cu30Ni top cover, wherein specific oblique angles are machined at the top of the NbTi core rod and in the Cu wrapping sleeve upper cover. In the extrusion process, the three ring type combined extrusion rods jointly advance by a first distance; then the outer rod stops, and the middle rod and the inner rod continue to be pushed by a second distance; finally, the middle rod stops, and only the inner rod is pushed by a third distance to complete extrusion. According to the method, by optimizing the end structure of a blank and introducing stepped deformation and composite ingot head design, the technical problems that in traditional extrusion, a copper sheath is excessively thinned / damaged, an annular tail is shrunk, and the head of an NbTi core rod deforms unevenly are solved.

The utility model belongs to the technical field of metal processing, and particularly relates to an aluminum alloy section extrusion forming device which comprises a main frame, a second sliding rail is fixedly connected to the top end of the right side of the main frame, a sliding frame is slidably connected to the outer side of the top end of the second sliding rail, and a mounting plate is fixedly connected to the top end of the sliding frame. The inner side of the mounting plate is rotatably connected with two groups of first bolts which are opposite up and down, the outer ends of the right sides of the first bolts are in threaded connection with a shaping plate, one end of the outer side of the middle end of the shaping plate is rotatably connected with a second bolt, and the right side of the second bolt is provided with a sealing assembly; a push rod is slidably connected to the inner side of the first hydraulic rod, an aluminum bar is arranged on the right side of the push rod, and the aluminum bar is slidably connected with the shaping plate. The utility model provides an aluminum alloy profile extrusion forming device, which can obviously reduce the downtime and is simple to operate by quickly replacing a plastic plate.

The present invention discloses a passive energy-saving aluminum alloy profile extrusion forming device, which relates to the technical field of aluminum alloy extrusion forming. The technical problem to be solved is that heat fatigue cracks are likely to occur in a forming die head after long-term use, causing the die to fail prematurely and greatly shortening the service life of the die. The device includes an operating table, on the top surface of which a hydraulic cylinder, an extrusion cylinder assembly, a first support, a second support and an alternating die mechanism are arranged. An inlet channel and a movable channel are opened in the operating table from top to bottom, and a feeding assembly is arranged below the inlet channel. The alternating die mechanism includes a linkage assembly arranged on the side wall of the first support, two die control assemblies arranged on the top surface of the operating table and two impurity removal assemblies. The present invention has the advantages of realizing the alternating use of two forming die heads, without the need to stop the machine for replacement, which not only does not affect the work efficiency, but also can protect the forming die head.

The invention provides a no-pressure bar extrusion device, and relates to the technical field of metal processing.The bar extrusion device comprises an extrusion die, an extrusion cylinder, an extrusion shaft and an extrusion gasket, the extrusion shaft and the extrusion gasket are both arranged in the extrusion cylinder, the extrusion gasket is connected to the extrusion end of the extrusion shaft, the extrusion gasket comprises a filling part, and the filling part is arranged in the extrusion cylinder. The extrusion die is of a barrel-shaped structure, the inlet end of the extrusion die is correspondingly connected with the outlet end of the extrusion barrel, an inner cavity of the extrusion die is composed of a deformation cavity and a sizing cavity in the axial direction, the deformation cavity is located at the inlet end of the extrusion die, and the shape of the filling part is matched with that of the deformation cavity. The tail of the bar manufactured by adopting the bar extrusion device provided by the invention does not have pressure residue with no deformation and very small deformation, and the material utilization rate and the production efficiency can be improved.

The invention provides a bar extrusion method and relates to the technical field of metal processing.The extrusion method is based on an extrusion device, the extrusion device comprises an extrusion die, an extrusion cylinder, an extrusion shaft and an extrusion gasket, the extrusion shaft and the extrusion gasket are both arranged in the extrusion cylinder, the extrusion gasket is connected to the extrusion end of the extrusion shaft, and the extrusion die is connected with the extrusion cylinder. The extrusion gasket comprises a filling part, the extrusion die is of a cylindrical structure, the inlet end of the extrusion die is correspondingly connected with the outlet end of the extrusion cylinder, an inner cavity of the extrusion die is composed of a deformation cavity and a sizing cavity in the axial direction, the deformation cavity is located at the inlet end of the extrusion die, and the sizing cavity is located at the outlet end of the extrusion cylinder. And the shape of the filling part is matched with that of the deformation cavity, so that the tail pressure residue of the bar can be improved, and the structure uniformity of the bar can be improved.

The utility model provides an extruder, comprising: an extrusion barrel, which is provided with a plurality of extrusion holes; an extrusion rod seat, which is provided with extrusion rods corresponding to the number of the extrusion holes, and the extrusion rods are movably connected to the inside of the extrusion holes in a one-to-one correspondence; and a mold assembly, which is provided with a number of feed ports corresponding to the extrusion holes, and the feed ports are connected to the extrusion holes in a one-to-one correspondence; a fusion shaping cavity and a lead-out cavity are also provided inside the mold assembly; and along the extrusion direction of the material in the mold assembly, the ratio of the length of the fusion shaping cavity to the length of the lead-out cavity is 1:2-2:3; the fusion shaping cavity is projected orthographically onto a plane to form a first figure; the lead-out cavity is projected orthographically onto the plane to form a second figure; the first figure is covered by the second figure and is located in the middle of the second figure, and the ratio of the width of the outer contour of the first figure to the width of the outer contour of the second figure is 1:3-1:2; the utility model can realize the extrusion of wide and flat profiles with wider cross-sections and uniform texture.