2075results 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 belongs to the technical field of fiber reinforced composite material additive manufacturing, and discloses a continuous fiber composite material 3D printer tail end heating extrusion device. Aiming at the problems of poor fiber impregnation degree of a resin matrix, low process flexibility of a mode of directly printing pre-impregnated composite filaments and incapability of changing the fiber content in a composite material structure by adjusting process parameters in real time in an in-situ impregnation printing mode, the invention designs an in-situ impregnation printing method capable of ensuring the printing process flexibility and improving the printing efficiency. According to the tail end heating extrusion device, the continuous fiber reinforced composite material structure can be formed in a high-quality mode, the fiber impregnation degree can be remarkably improved, and the structure of a printing nozzle is optimally designed. Through the structural design of the internal channel and the outlet nozzle of the tail end heating device, the impregnation effect of a resin matrix on continuous fibers can be improved, scraping of the nozzle on the continuous fibers is relieved, and the quality of a printing component can be effectively improved.

A device for the lithography-based additive manufacturing of three-dimensional structures on a substrate, comprises a carrier element for carrying a substrate having a curved surface, a light engine designed for the dynamic patterning of light in an exposure field of said light engine, a material transport unit comprising a first drive means for transporting a material layer across the exposure field, second drive means for causing rotational movement of the substrate having the curved surface such as to establish a rolling contact of the curved surface on the material layer in a contact zone, said contact zone being arranged in the exposure field, and first control means configured to control said first and / or second drive means so that said rolling contact of the curved surface on the material layer is essentially slip-free.

The invention provides multi-material continuous fiber 3D printing high-precision forming equipment which is composed of a device frame, a moving mechanism, a printing mechanism, a lifting control mechanism, an auxiliary heating smooth forming mechanism and an electric heating system. Self-adaptive slicing is carried out according to the curvature of the classification model, and slices are divided into slice sets A, B,..., and are transmitted to respective printing systems; and the printing system corresponding to each slice carries out layer-by-layer printing according to slice information, and heating balls carry out continuous smoothing treatment on the surface while the layer is printed. And after the single-layer printing is finished, the balls are processed to keep a smooth state. By means of the device and method, highly-integrated multifunctional parts can be achieved, the design freedom degree is provided, the manufacturing process is simplified, the cost is reduced, use of materials can be optimized, the performance and light weight of parts are enhanced, and multi-material development of composite material 3D printing is promoted.

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 discloses a 3D printer with an auxiliary stripping function and a using method, and particularly relates to the technical field of 3D printing.The 3D printer with the auxiliary stripping function comprises a gantry rack, a two-axis moving table is installed on the gantry rack, a printing head is installed at the output end of the two-axis moving table, and a Y-axis electric sliding table is installed at the bottom of the gantry rack. The stripping mechanism is formed by splicing the multiple heating plates, a worker can control opening and closing of the multiple heating plates according to the size of a 3D printing product, so that dynamic heating adjustment in different space ranges is formed, the difficulty that waste is caused and the follow-up cooling difficulty is increased is avoided, the mode that the heating units are completely separated from the tray is adopted, and the working efficiency is improved. The cooling efficiency is synchronously improved, the pretreatment mechanism is additionally arranged on the tray, switching control over a cleaning piece and a treatment piece can be completed through cooperation of a control shaft and two friction wheels, and through the design, intermittent cleaning and pretreatment operation can be completed on the tray.

Provided herein are devices and systems for depositing a material or manufacturing a product, such as a pharmaceutical dosage form, by additive manufacturing. Further provided are methods of using the devices and systems, as well as methods of manufacturing a product, such as a pharmaceutical dosage form, by additive manufacturing. In certain embodiments, the device includes a material supply system configured to melt a pressurized a material, a pressure sensor configured to detect a pressure of the material within the device, and a control switch comprising a sealing needle operable in an open position and closed position. The sealing needle extends through a feed channel containing the material and includes a taper end, wherein the tapered end of the sealing needle engages a tapered inner surface of a nozzle to inhibit flow of the material through the nozzle when the sealing needle is in the closed position.

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.

A five-axis 3D printer can include a tilting-rotating bed, and a print head that can be moved relative to the tilting-rotating bed in three orthogonal directions. In some embodiments, printers with tilting-rotating beds can utilize unique or uniquely adapted components and processes for printing processes and associated processes, such as calibration techniques. In some embodiments, these processes may leverage the unique features and advantages provided by such printers. In some embodiments, these processes may address or compensate for potential issues unique to such printers.

The embodiment of the invention relates to the technical field of 3D printing, and discloses a material extrusion device and a 3D printer, the material extrusion device comprises a first extrusion mechanism and at least two second extrusion mechanisms; the first extrusion mechanism comprises a first charging barrel, a first motor and a first screw, the first motor is arranged at one end of the first charging barrel, a nozzle is arranged at the other end of the first charging barrel, the first screw is arranged in the first charging barrel, and one end of the first screw is connected with the first motor; each second extrusion mechanism comprises a second charging barrel, a storage bin, a second motor, a second screw rod and a feeding bin, the two ends of the second charging barrel communicate with the first charging barrel and the storage bin correspondingly, the storage bin is provided with the second motor and further communicates with the feeding bin, the second screw rod is arranged in the second charging barrel, and the second screw rod is arranged in the second charging barrel. And one end of the second screw rod penetrates through the storage bin and is connected with a second motor. By means of the mode, mixing and extrusion of at least two materials are achieved, and the 3D printer achieves mixed printing of multiple materials of the same product.

The invention discloses eyelash cutting equipment and a manufacturing process, and relates to the field of eyelash processing technology.The eyelash cutting equipment comprises a rack, a printing platform, a laser printer and a feeding wheel, the feeding wheel, the printing platform and the laser printer are all located at the upper end of the rack, and the printing platform is located between the laser printer and the rack; a shaping device is arranged at the upper end of the rack and used for shaping materials, a separating device is arranged at the upper end of the rack and used for separating the shaped materials, a supporting plate is arranged on the side, away from the feeding wheel, of the printing platform, the supporting plate is arranged in the length direction of the printing platform, and a residual piece collecting roll and a base plate collecting roll are rotationally connected to the supporting plate. The residual piece receiving roll and the base plate receiving roll are both arranged perpendicular to the supporting plate, the residual piece receiving roll is located between the base plate receiving roll and the feeding wheel, the outer sides of the residual piece receiving roll and the base plate receiving roll are provided with adhesive tapes easy to tear in the axial direction, and a driving device is arranged on the supporting plate. The eyelash production device has the effect of improving the eyelash production efficiency.

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 anti-adhesion 3D printer comprises a machine body, a printing device is installed at the position, close to the left side, of the top of the machine body, and a square hole is formed in the middle of the top end of the machine body in a penetrating mode. The heating plate is used as the printing table top, under the cooperation of the lifting mechanism and the clamping mechanism, rapid demolding is achieved, the phenomenon that a formed plastic product adheres to the printing table top is prevented, after demolding, part of plastic raw materials usually adhere to the top of the heating plate, and the plastic raw materials are not prone to falling off. And in order to prevent the phenomenon from occurring and better carry out next-step printing, under the cooperation of a first cooling fan, a first cleaning mechanism, a material guiding mechanism and a second cleaning mechanism, solidified plastic at the top of a heating plate and the bottom of the plastic product is removed at the same time, so that the phenomenon that the bottom of the plastic product is uneven and uneven is avoided. The production efficiency of plastic products is improved, the qualified rate of the products is increased, the whole process is automatically carried out, and the requirements of workers are met.

The stock bin comprises a shell, a base, a draught fan and a heating piece, the base is contained in the shell and provided with a base area, the base comprises a supporting shaft used for supporting a material disc, the area below the plane penetrating through the axis of the supporting shaft and parallel to the bottom wall of the shell is the base area, and the material disc is placed in the base area; an airflow cavity is formed between the base and the bottom wall of the shell, the base is provided with a first air hole and a second air hole, and the first air hole and the second air hole are formed in the annular direction of the tray at intervals and communicate with the base area and the airflow cavity correspondingly; the draught fan and the heating piece are contained in the airflow cavity, the draught fan is arranged close to the first air hole, and an air outlet of the draught fan faces one side of the second air hole. According to the stock bin, the problem that the effect of drying the trays in an existing 3D printing feeding device is poor can be solved.

The invention relates to the technical field of false tooth machining, and provides false tooth 3D printing forming equipment and a false tooth machining method.The false tooth 3D printing forming equipment comprises a feeding system and a forming system and further comprises a printing box, a printing frame, a printing position adjusting mechanism with a self-locking function, a hollow material carrying plate, a material taking power assembly and a preheating assembly; a processing box door is detachably arranged on one side of the printing box in a sealed mode, the printing frame is arranged on the inner bottom wall of the printing box, the feeding system is installed on the printing frame, the printing position adjusting mechanism is installed on the printing frame, the forming system is installed on the printing frame and communicates with the feeding system, and the hollow material carrying plate is arranged on the printing frame in a sliding mode. A material taking baffle is arranged on one side of the hollow material carrying plate. By means of the technical scheme, the problem that in the prior art, when false teeth are machined through false tooth 3D printing forming equipment, the false teeth are heated unevenly, and consequently the false teeth deform is solved.

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.

Described herein are compositions, methods, and systems for printing metal three-dimensional objects. In an example, described is a method of printing a three-dimensional object comprising: (i) depositing a metal powder build material, wherein the metal powder build material has an average particle size of from about 10 μm to about 250 μm; (ii) selectively applying a binder fluid on at least a portion of the metal powder build material, wherein the binder fluid comprises an aqueous liquid vehicle and latex polymer particles dispersed in the aqueous liquid vehicle; (iii) heating the selectively applied binder fluid on the metal powder build material to a temperature of from about 40° C. to about 180° C.; and (iv) repeating (i), (ii), and (iii) at least one time to form the three-dimensional object.

The invention discloses a 3D printing method and a 3D printing device for strong constraint forming, and relates to the field of 3D printing, and a prepared product has an interlayer mortise and tenon joint structure. The front end of the printing opening is provided with a restraining blocking piece, the rear end of the printing opening is provided with a tenon-and-mortise blocking piece capable of rotating and switching, and the two sides of the printing opening are provided with contour restraining pieces for adjusting the extending length to form a restraining space. And the forming material is filled and formed in the constraint space, a negative draft angle groove mortise structure is formed after the forming material is extruded from the mortise and tenon separation blade, and in the layer-by-layer printing process, the groove mortise structure is filled with the forming material, and then an interlayer mortise and tenon structure is formed. A laser heater is installed at the front end of the printing head to preheat a printing path, and a roller is installed at the rear end of the printing head to compact a printed lamellar structure. The method has the advantages that shell constraint forming is carried out on the product contour curved surface, interlayer combination is changed into mortise and tenon joint from traditional adhesion combination, interlayer combination is tighter, the product appearance is good, the forming efficiency is high, and the product performance is better guaranteed.

The invention belongs to the technical field of 3D printing, and relates to a sinking type 3D printing liquid level control device and method. A forming table movement system of the control device is provided with a forming table placed in the multifunctional stock bin; a forming table movement mechanism is arranged corresponding to the forming table; the forming table movement mechanism is provided with a left cantilever and a right cantilever which are located over the forming table and arranged in a bilateral symmetry mode. The rear ends of the left cantilever and the right cantilever are fixedly connected with the Z-direction movement mechanism; the front end is positioned right above the multifunctional stock bin; the arranged liquid level detection system comprises at least one liquid level sensor which is parallel to the forming table; the multifunctional stock bin comprises an inner bin and an outer bin; according to the sinking type 3D printing scraper-free liquid level leveling device, the functions of scraper-free liquid level leveling of sinking type 3D printing, stable operation of a curing light source, timed stirring of light curing liquid and constant-temperature control are achieved, and long-term stable and rapid operation of sinking type 3D printing equipment is guaranteed.

A 3D printer configured to print a 3D part includes an ejector having a nozzle that is configured to eject drops of a build material. The 3D printer also includes a build plate positioned below the nozzle. The drops land and solidify on the build plate to form at least a portion of the 3D part. The 3D printer also includes a first heater positioned under or within the build plate. The first heater is configured to heat the build plate and the 3D part thereon. The 3D printer also includes a second heater positioned laterally-offset from the build plate. The second heater is configured to heat a volume of air between the nozzle and an upper surface of the 3D part. The 3D printer also includes an enclosure. The nozzle, the build plate, the first heater, and the second heater are positioned at least partially within the enclosure.

The invention relates to a nozzle module and a three-dimensional printer. The nozzle module comprises a heat dissipation assembly; the locking assembly comprises a clamping ring piece fixed to the heat dissipation assembly and a knob piece connected to the clamping ring piece, the clamping ring piece is provided with a clamping hole and an opening which penetrate through the clamping ring piece in the first direction, and the opening communicates with the clamping hole; the nozzle assembly sequentially penetrates through the clamping hole and the heat dissipation assembly in the first direction; wherein the knob part can rotate relative to the clamping ring part, and under the condition that the knob part rotates relative to the clamping ring part, the width of the opening is selectively decreased or increased, so that the clamping ring part clamps or releases the nozzle assembly. Quick mounting and quick dismounting can be achieved, mounting and dismounting are convenient, and the mounting and dismounting efficiency is improved.

A deposition plane for additive manufacturing processes comprises a work surface (2) and a handling device. The work surface (2) is topologically deformable in at least one deformation zone and has a first face (2a) on which an object can be formed. The handling device comprises at least one actuator (3) coupled to a second face (2b) of the work surface (2) at the at least one deformation zone. Such a handling device is configured to locally deform the work surface (2) by moving the deformation zone thereof, preferably by exerting a pulling or pushing action on said deformation zone by means of the actuator (3).

A multiplexed three-dimensional printing system including a printhead block (100) moveable in three-dimensions, the printhead block including a plurality of extruders (101, 103, 105), wherein each of the plurality of extruders is individually switchable between a deposition state and a retraction state, wherein the deposition state deposits a printing material, and wherein the retraction state prevents deposition of the printing material.

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).

A sleeve (10) for mounting on a mandrel of a commercial printing machine can include distinct annular regions that are integrally formed simultaneously as a unitary structure without a forming mandrel and without any need to be adhered to one another in manufacturing steps separate from the manufacture of each annular region of the completed sleeve. A 3D printing machine and method suitable for one or more of the flexible packaging industry, the offset printing industry, the publication printing industry, the decor printing industry, and the corrugated printing industry, employs a build plate that descends from a horizontal printing plane where each of multiple printing heads extrudes a road cycle of thermoplastic material onto the immediately underlying road cycle of the sleeve.

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.