1355results about "Manufacturing heating elements" patented technology

The invention discloses an industrial particle 3D printer cavity temperature heat recovery system and a cavity temperature control method, and relates to the technical field of 3D printing, and the method comprises the following steps: establishing a three-dimensional geometric analysis model of a printing component, based on the structural morphology, thickness distribution and spatial topology characteristics of the component, extracting a spatial temperature control demand corresponding to each region, and calculating a three-dimensional geometric analysis model of the printing component; and determining an adjusting target of the hot air circulation system. According to the method, a space temperature control demand model is established based on geometrical characteristics of a component, oriented distribution of heat energy is realized by dynamically adjusting a hot air circulation system, a cooling characteristic curve is constructed in combination with real-time temperature and stress data, and a warping resonance sensitive area is identified and regulated. And a self-adaptive temperature control system is formed through fixed-point thermal compensation and parameter closed-loop correction. Compared with a traditional strategy, the method has the advantages that the temperature control precision and the response efficiency are remarkably improved, thermal stress resonance and structural deformation in the cooling process are effectively restrained, and the method is suitable for stable forming of high-precision complex components and has wide application prospects.

The invention discloses a multi-material 3D printing device based on a photo-thermal coupling effect and a forming method of the multi-material 3D printing device, and relates to the field of additive manufacturing. The light source device is a semicircular convergent photo-thermal emitting device, 360-degree light source irradiation can be achieved, and illumination is uniform. After the slurry is extruded, the ultraviolet curing process can be immediately carried out, and the phenomenon that a printed entity collapses due to the influence of gravity factors caused by untimely light source irradiation can be obviously reduced. By adjusting the frequency and duty ratio of the light source, the temperature and illumination intensity of the slurry in the extrusion device are adjusted, so that the slurry is easier to extrude and form, and the formation of a hyperfine structure is realized; and a multi-axis moving platform is adopted, so that multi-angle complex structural parts can be easily formed. The extrusion device is used as a core, and high integration of the printing device is achieved. The printing efficiency is greatly improved, ultrahigh-precision and ultrahigh-height printing of a complex structure is achieved, and the problems of collapse caused by gravity factors and difficulty in forming a high-precision structural part are solved.

The invention belongs to the technical field of 3D printing, relates to 3D printing equipment and a printing control method thereof, and solves the problems that printing parameters cannot be adjusted in real time and the printing effect cannot be ensured. The 3D printing equipment comprises a mechanical arm controlled by an industrial robot, a printing device is arranged on the mechanical arm, the industrial robot and the printing device are connected with an upper computer, the printing device comprises a material storing and feeding mechanism and a screw extrusion mechanism which are arranged on a fixing support, and the discharging end of the material storing and feeding mechanism is connected with the feeding end of the screw extrusion mechanism; the upper computer comprises a three-dimensional model layered slicing module, a path optimization module and a dynamic cooperative control module. A laser distance measuring sensor is arranged on the outer side of a nozzle of the printing device and used for synchronously adjusting the motion trail of the mechanical arm. According to the equipment, the melt extrusion type printing mechanism is adopted, the product performance is improved, the application range of 3D printing is expanded, cooperation of the printing equipment and the mechanical arm is enhanced, specific parameters can be adjusted according to actual operation, and the printing quality is guaranteed.

The invention relates to the technical field of 3D printing, in particular to an industrial mold 3D printer based on plastic powder slurry. The printer comprises a rack, a movable frame and a printer body, and the printer body comprises a body, a flow guide pipe, a first heater, a cooling fan, a quantity adjusting assembly and a back suction assembly. According to the device, when the quantity adjusting rod drives the quantity adjusting head to be downwards inserted into the communicating position of the heating cavity and the nozzle to plug the nozzle, the quantity adjusting rod further drives the piston plate to move in the suction cavity, the piston plate firstly moves rightwards to expand the containing volume of the suction cavity to form negative pressure, and then material consumables left in the end of the nozzle are sucked into the suction cavity through the suction pipe; and then the piston plate moves leftwards to reset in the suction cavity to press the material consumables in the suction cavity into the flow dividing cavity through the one-way valve, so that the phenomenon that part of the material consumables left in the spraying end part of the nozzle flow out of the drawn wire to form overflow on the surface of the industrial mold is avoided, and the printing processing quality of the industrial mold is ensured.

The present disclosure provides a system and method for three-dimensional (3D) printing. The system comprises a post-treatment device. The post-treatment device comprises: a material receiving mechanism, which comprises a material receiving body, the material receiving body being configured to bear a 3D-printed object having a redundant printing material; and a driving mechanism, which is configured to allow the material receiving mechanism to rotate from a first state to a second state, so that the redundant printing material drips off of the 3D-printed object, wherein the 3D-printed object has at least two different inclination angles. The technical solution of the present disclosure effectively solves the problem in the prior art of methods for separating a redundant printing material from a 3D-printed object having a poor separation effect and low efficiency.

Method for forming a three-dimensional object by successively melting applied powder, the method comprising the following steps: a. Providing at least one powder container containing powder to be used for forming the three-dimensional object, b. Providing a predetermined amount of powder on a support structure, c. Directing an energy beam over the support structure, causing at least one section of the powder to sinter and at least one section of the powder to bond with the support structure, d. Directing an energy beam over the support structure, causing the powder to melt in selected areas according to a model to form a first section of the three-dimensional object, characterized in that the method further comprises the following steps: e. Rotating the support structure around an axis of rotation to create the three-dimensional object, which is built layer upon layer in a radial direction with reference to the axis of rotation.

The granular material 3D printer with the cavity temperature comprises a printer body, a fan is arranged on one side of the printer body, a cold and hot air system is arranged on the other opposite side of the printer body, a filtering air outlet is formed in the upper portion of the cold and hot air system, and a vacuum adsorption platform is arranged in a cavity of the printer body; a liftable bracket is arranged above the vacuum adsorption platform, an X shaft and a Y shaft are arranged on the bracket, a printer head is arranged on the X shaft and can reciprocate along the X shaft, and the four lead screws drive the bracket to vertically ascend and descend along an optical axis when rotating synchronously. When the granular material 3D printer with the cavity temperature is used, cold and hot air circulation can be adjusted according to the characteristics of granular materials, model cooling and cavity temperature guaranteeing are facilitated, in addition, the printing precision can be improved through stable lifting of the bracket, meanwhile, the heating efficiency of the cavity is further improved through arrangement of organ cloth, and the granular material 3D printer is suitable for application and popularization.

A 3D printing system includes a printing head, a base frame and a material platform. The printing head includes a printing seat and a nozzle seat, where the nozzle seat may rotate relative to the printing seat, and an extrusion opening is formed in the nozzle seat. The material platform includes a frame which may rotate relative to the base frame, and at least one feeding component. The feeding component includes a rotatable follow-up portion arranged on the frame, and the feeding component is used for conveying printing materials to the extrusion opening. A flexible line is connected between the frame and the nozzle seat, and includes a conveying line formed between the feeding component and the extrusion opening for conveying printing materials. The platform frame may rotate following the nozzle seat to prevent excessive winding of the flexible line.

An extruder for an additive manufacturing machine has a first and second extrusion duct (6, 7) separated from each other; a first and a second feeding system (8, 9), configured to feed a first and a second material into the first and the second extrusion duct (6, 7); a first and a second heating assembly (10, 11) configured to heat the first and the second material so as to determine the melting of the first and the second material; a mixing chamber (12), which is configured to allow the mixing of the first and of the second melt material exiting from the first and from the second extrusion duct (6, 7); and a control unit (14), configured to independently control the first and the second feeding system (8, 9) and the first and the second heating assembly (10, 11).

The embodiments of the present disclosure relate to the technical field of a flexible semiconductor 3D additive material, in particular to a system for printing and discharging of a flexible semiconductor 3D additive material and a control method thereof. Ink materials corresponding to different layers of a flexible semiconductor to be printed are pre-treated prior to entering troughs. The ink materials after the pretreatment flow into the multi-channel troughs, the corresponding ink materials are controlled to be sequentially extruded by gases in the corresponding troughs, intertwined and injected into interfaces, and stacked to form a stacked layer structure at end of printheads connected with the interfaces to complete discharging and printing, thereby realizing simultaneous printing of the ink materials of different viscosities and fluidities, improving the printing speed, and realizing direct printing of a sandwich structure of a semiconductor device.

The invention relates to the technical field of powder bed heating, and discloses a powder bed heating method of additive manufacturing equipment, the powder bed heating method of the additive manufacturing equipment is realized based on a powder bed heating unit of the additive manufacturing equipment, and the powder bed heating unit of the additive manufacturing equipment comprises a handle bottom plate for providing a basic mounting platform for the whole device; a push-pull type local heating design is adopted for the device, a traditional overall preheating mode is replaced, energy consumption and the equipment use cost are greatly reduced, meanwhile, heat loss is reduced, the heating efficiency is improved, and through cooperation of double positioning and a real-time temperature control system, the energy-saving and environment-friendly effects are achieved. The accurate position of the heating unit is guaranteed through mechanical limiting and sensor detection, high-precision temperature control adjustment is matched, it is guaranteed that the temperature of the powder bed is stabilized within the preset range, part defects caused by temperature fluctuation are avoided, and the forming quality and the mechanical property stability of workpieces are remarkably improved.

A dual-switch 3D print head having synergistic printing of resin and continuous fibers, the print head comprising a main frame (1), wherein a resin head extrusion mechanism (3) is provided on the main frame (1); the main frame (1) is connected to a continuous fiber printing mechanism (6) by means of a dual-nozzle switching mechanism (2); a continuous fiber cutting mechanism (7) and a wire feeding and clamping coordination mechanism (63) are provided on the continuous fiber printing mechanism (6); the continuous fiber printing mechanism (6) comprises a continuous fiber printing mounting plate (61); a fiber clamping mounting base (631) is provided on one side of the top of the continuous fiber printing mounting plate (61); a fiber clamping actuator is mounted on the fiber clamping mounting base (631); a clamping connecting rod (635) is movably connected to the end of the fiber clamping actuator; the other end of the clamping connecting rod (635) is connected to a fiber guide wheel (633); a wire feeding gear (634) is provided beside the fiber guide wheel (633); and the wire feeding gear (634) is mounted on the continuous fiber printing mounting plate (61). The dual-switch 3D print head can ensure the precision of the relative positions between dual nozzles during multiple switchings for a long time, and also achieve the organic combination of active wire feeding and passive wire feeding for a continuous fiber wire material is also realized, thereby realizing high-quality printing of continuous fibers.

The utility model discloses a hot bed and a 3D printer, and relates to the technical field of 3D printing, the hot bed comprises a printing platform, a support frame and a locking assembly, the printing platform is provided with a printing plane used for bearing a printing piece; the supporting frame is arranged on the side, back to the printing plane, of the printing platform, the supporting frame and the printing platform are arranged at intervals in the first direction and elastically connected through an elastic piece, and the first direction is perpendicular to the printing plane; the locking assembly is arranged on the printing platform and provided with a friction face abutting against the supporting frame, the friction face is parallel to the first direction, friction force parallel to the first direction exists between the friction face and the supporting frame, and the friction force is used for limiting relative movement of the printing platform and the supporting frame in the first direction. According to the technical scheme, the connecting structure of the hot bed is simplified, and the leveling efficiency of the hot bed is improved.

To miniaturize a liquid discharge head.SOLUTION: A three dimensional object printing apparatus 1 includes a head unit 3a having a liquid ejecting head 30 that ejects first liquid, a head unit 3b having a liquid ejecting head 30 that ejects the second liquid, and a robot 2 that moves the head unit 3a with respect to a three dimensional workpiece W in a state in which the head unit 3a is mounted and moves the head unit 3b with respect to the workpiece W in a state in which the head unit 3b is mounted, and the head unit 3a and the head unit 3b are attachable to and detachable from the robot 2.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of 3D printing, in particular to a printing head and a three-dimensional printer. The printing head comprises a connecting assembly, a heating device connected with the connecting assembly and a nozzle connected with the heating device, the connecting assembly comprises at least two material guiding channels, the heating device comprises feeding channels corresponding to the material guiding channels, the feeding channels are communicated with the material guiding channels, and the nozzle is connected with the feeding channels. And a discharging channel communicated with the feeding channel is arranged on the nozzle. The three-dimensional printer comprises the printing head. According to the technical scheme, when printing of other colors or consumables is carried out, the consumables do not need to be returned, and the printing speed is increased.

The invention belongs to the technical field of 3D printing, and discloses a printing module and a 3D printer, the printing module comprises a printing head mechanism, and the printing head mechanism comprises a heat dissipation assembly and a heat dissipation assembly; the heating assembly and the heat dissipation assembly are arranged in a spaced mode in the first direction; the throat pipe assembly sequentially penetrates through the heat dissipation assembly and the heating assembly in the first direction, the elastic assembly can rotate relative to the heat dissipation assembly, and the elastic assembly is configured to selectively clamp at least one of the heat dissipation assembly and the throat pipe assembly; or the elastic assembly is configured to selectively loosen at least one of the heat dissipation assembly and the throat pipe assembly. By arranging the elastic assembly, the printing head can be disassembled, assembled and replaced without a tool, rapid disassembly of the printing head mechanism is achieved, the disassembly and assembly efficiency of the printing module is effectively improved, and the problem of blockage of the printing head can be efficiently solved.

The utility model discloses a hot bed leveling supporting structure which comprises a base, a heating plate, a rotary connecting assembly and a fixed connecting assembly, the rotary connecting assembly and the fixed connecting assembly are connected with the base and the heating plate, and the heating plate can rotate around the rotary connecting assembly in the horizontal direction. By arranging the rotary connecting assembly and the fixed connecting assembly, the heating plate can rotate around the rotary connecting assembly, the distance between the heating plate and the base is kept unchanged, the positions of the heating plate and the base are fixed through the fixed connecting assembly, and leveling of the heating plate is achieved.

The utility model provides a consumable melting assembly for a 3D printer, a nozzle and the 3D printer, the consumable melting assembly comprises a heating body, and a first heating runner and a second heating runner are arranged in the heating body in the axial direction of the heating body; the second heating runner is arranged in the first heating runner, the second heating runner is in an inverted cone shape in the direction from a consumable inlet to a consumable outlet, a melting runner is formed between the outer wall of the second heating runner and the inner wall of the first heating runner, a plurality of through holes are formed in the second heating runner, and the through holes are communicated with the melting runner. And the second heating runner is communicated with the melting runner through the through hole. The resistance of the consumable passing through the flow channel is reduced, the distance between the consumable melting assembly and the inner core of the consumable is shortened, the inner core of the consumable can be quickly melted, the problem that the nozzle is blocked is effectively avoided, and meanwhile the stability of the outlet flow of the nozzle and the printing speed of the 3D printer are effectively improved.

The utility model discloses a hot bed and a 3D printer. The hot bed comprises a bed plate and a heating device, the supporting piece is arranged on one side of the bed board; the elastic leveling device is connected with the bed board and the supporting piece and is used for adjusting the flatness of the bed board; the locking assembly is connected with the bed board and the supporting piece and used for locking the position of the bed board relative to the supporting piece after the bed board is leveled. According to the hot bed in the embodiment, the locking assembly is used for locking the position of the bed board relative to the supporting piece after the bed board is leveled, so that deformation and displacement of the bed board can be reduced, the overall rigidity of the hot bed is improved, and then the printing quality of the 3D printer is improved.

This invention relates to an apparatus and method for fabricating microanodes using localized electrochemical deposition additive manufacturing, belonging to the fields of 3D printing technology and electrochemical deposition. The y-axis moving device is threadedly connected to the frame assembly, and the dual-nozzle device is also threadedly connected to the y-axis moving device. The z-axis moving device is fixed to the frame assembly, and the heated bed platform is fixed to the z-axis moving device. An inert metal wire cutting device is installed on the connecting shaft between the z-axis moving device and the heated bed platform. The advantages are: it automates the fabrication of microanodes using localized electrochemical deposition additive manufacturing, improving the efficiency of microanode fabrication and saving manpower, material resources, and financial resources; it solves the difficulties of traditionally using capillary glass tubes to encapsulate extremely fine inert metal wires, allowing for convenient encapsulation of inert metal wires with diameters below 20 micrometers; it utilizes laser cutting for post-processing the electrode, avoiding the difficulty of grinding a smooth electrode surface; and the electrode shape can be designed by computer, without shape limitations.

An extruder head assembly, which is for an additive manufacturing machine, includes a melt zone component, and a nozzle operatively connected to the melt zone component. The melt zone component is operatively connected to a cold end component for receiving and heating filament. The melt zone component includes a heat source, and an interior member in thermal communication with the heat source. The interior member defines therein a passage, at least one melt channel, and at least one aperture fluidly connecting the passage to the at least one melt channel. The passage and the at least one melt channel are fluidly connected downstream from the at least one aperture, the nozzle being configured to receive heated filament material from the passage and the at least one melt channel.

The present document relates to a dispensing head for continuous fiber reinforced fused filament type additive manufacturing. The dispensing head is configured for dispensing a material onto a substrate carrier platform, and comprises one or more inlets for receiving a strand of meltable solid material and a reinforcement fiber and a material passage extending from the receiving inlets to a dispensing outlet. The dispensing head further comprises a material heating unit for liquefying the material and drive means for driving the material through the material passage. The material heating unit comprises a solid radiation body extending from the dispensing outlet at least in a direction parallel to the substrate carrier platform, defining a radiation face toward the substrate carrier platform, wherein the radiation body is thermally separated from the dispensing outlet.

The invention belongs to the technical field of additive manufacturing, and discloses a method and device for improving 3D printing quality, the device is used for being matched with an FDM 3D printing system, the device comprises a printing platform (4), a containing cavity (5), a temperature control system, an annular ultrasonic auxiliary system (3), a liquid circulation system and an infrared liquid level detector (8), and the containing cavity (5) is provided with an ultrasonic generator (53); the annular ultrasonic auxiliary system (3) comprises an annular support (31), an ultrasonic array module (32), a spray header module (33) and a lifting mechanism (34). According to the 3D printing device, the assemblies are improved, and 3D printing can be effectively improved through the overall arrangement of the containing cavity, the temperature control system, the annular ultrasonic auxiliary system, the liquid circulation system and the infrared liquid level detector. The device is flexible in structure, high in synchronism and excellent in local treatment capacity, and the surface smoothness and structural integrity of the FDM 3D printing piece can be remarkably improved.

A thermal folding forming method for additive manufacturing of a three-dimensional lattice structure of a fiber-reinforced composite, the method comprising the following specific steps: a first step, printing a fiber-reinforced composite having a repeated two-dimensional planar lattice structure by means of a dual-nozzle continuous fiber-reinforced composite additive manufacturing apparatus; a second step, using a robotic arm gripper (4) to grip the printed fiber-reinforced composite having a two-dimensional planar lattice structure and place same onto a retractable hot roller thermal folding and heating device, and heating same at a fiber connection point, wherein the thermal folding device is arranged in a 10 x 10 columnar lattice and can be fully retracted with a retractable height ranging from 0-50 mm, such that the fiber-reinforced composite having a two-dimensional planar lattice structure is heated and elevated by means of the retractable hot roller, and can be folded into the fiber-reinforced composite having a three-dimensional lattice structure; and a third step, using the robotic arm gripper (4) to grip the fiber-reinforced composite having a three-dimensional lattice structure and place same into a water-cooling box for water cooling and shape setting. The forming method can improve the structural complexity of the fiber-reinforced composite, thereby achieving the three-dimensional structure transformation of the composite.

The invention discloses an additive manufacturing powder bed preheating system and method based on hot air-partition radiation synergy. The additive manufacturing powder bed preheating system comprises a preheating outer box, a powder bed, a hot air circulating system, a partition radiation heating system and a layering synergy controller. The method has the beneficial effects that an upper-layer steady-state optimization and lower-layer dynamic compensation framework is adopted, wherein the upper layer aims at energy efficiency and temperature uniformity, and the temperature and the air speed of a hot air inlet are optimized; and the lower layer is based on real-time temperature feedback, the partition radiation power is adjusted through a feedback + feedforward decoupling algorithm, local temperature disturbance is compensated, hot air rapidity and partition radiation accuracy are fused, the problems of response lag, space coupling and laser preheating cooperation deficiency are solved, rapid, uniform and dynamic regulation and control of the temperature field of the powder bed are achieved, the additive manufacturing quality is improved, and the production efficiency is improved. The method is suitable for high-precision manufacturing of various high polymer materials.

The utility model discloses a hot bed and 3D printer relates to 3D printing technical field, the hot bed includes shell and heating module, the shell is equipped with the cavity, forms the power supply area in the cavity, the power supply area deviates from the middle area of the cavity, the shell is used for bearing the printing panel; the heating module comprises a plurality of heating units, the two ends of each heating unit are connected to the power supply area, and the heating units form an annular structure. The technical scheme provided by the utility model aims to improve the heating efficiency of the hot bed.

The present invention discloses a 4D printing method, apparatus, and application thereof, including processes such as proportioning of multi-viscosity liquid components, flow mixing, degassing, temperature-controlled curing, filling, and final curing. Based on an integrated molding design concept, the method enables the preparation of pneumatically driven, self-propelled, deformable bionic structures (referred to as "bionic deformable actuators"). The apparatus and method of the present invention can produce functional components made of elastic, flexible materials with a viscosity range of 2,000 to 38,000 cps. This greatly simplifies the preparation process of bionic deformable actuators, enabling direct printing and single-stage molding without the need for secondary processing.

A single-motor-driven continuous fiber and resin matrix synchronous blending extrusion device belongs to the technical field of continuous fiber reinforced composite material 3D printing, and is characterized by comprising a main body frame, the main body frame is provided with a motor and is connected with a synchronous driving mechanism; the synchronous driving mechanism is connected with a continuous fiber extrusion mechanism and a resin matrix extrusion mechanism; a heating module and an air cooling module are arranged at the lower ends of the continuous fiber extrusion mechanism and the resin matrix extrusion mechanism; by utilizing the synchronous driving mechanism, the continuous fiber reinforcement and the resin matrix can be blended and extruded. The device is driven by a single motor, and is low in power requirement, small in size and mass, and simple and reliable in structure.

The utility model provides a heating piece, a nozzle assembly and a 3D printer, and belongs to the technical field of 3D printing. The heating piece comprises a body, a flow dividing piece and at least one supporting piece. The body is provided with a flow guide channel penetrating through the body. The flow guide channel is provided with an inlet end and an outlet end. The flow dividing piece is contained in the flow guiding channel, and a gap channel is formed between the flow dividing piece and the channel wall of the flow guiding channel. The supporting piece is contained in the gap channel, one side of the supporting piece is connected with the channel wall of the gap channel, and the other end of the supporting piece is connected with the side wall of the flow dividing piece. The flow dividing piece is provided with a flow dividing channel, the flow dividing channel is provided with a feeding port and at least one discharging port, the feeding port is formed in the side, close to the inlet end, of the flow dividing piece, and the discharging port is close to the outlet end and communicates with the gap channel. The heating element provided by the utility model not only can improve the heating efficiency of the consumables, but also can improve the heating uniformity of the consumables and improve the melting speed of the consumables.

The invention relates to the technical field of printing devices, and discloses a magnetic field assisted rapid liquid printing device which is characterized in that a discharge pipe at the bottom of a raw material tank is connected with a spray head, a coil assembly is arranged around the discharge pipe, and a spiral heating pipe assembly located above the coil assembly is arranged around the discharge pipe; a sealing end cover assembly is arranged at the top of the raw material tank, an air compression assembly is further arranged in the sealing end cover assembly, and an air supply assembly is further arranged on the sealing end cover assembly; the coil assembly is electrified to generate an adjustable magnetic field, and is matched with the spiral heating pipe assembly to heat the base fluid, so that the viscosity is reduced, the particle orientation is ensured, the problem of low orientation rate in the traditional technology is solved, and the uniformity of the magnetic response performance of the MRE base fluid is improved. Air is periodically pressed into the raw material tank by the air pressing assembly, the air pressing assembly cooperates with a spiral blade of the stirring and extruding assembly to form a double-power system of mechanical extrusion and air pressure pushing, and the MRE base liquid can be smoothly and thoroughly extruded.