4479results about "Applying layer means" patented technology

Additive manufacturing devices with subtractive tools are provided. In one aspect, an additive manufacturing device includes a shoulder configured to rotate about a central axis, the shoulder including a central channel extending from a first end of the shoulder to a second end of the shoulder, the central channel configured to allow a filler material to pass through the shoulder from the first end towards the second end. The additive manufacturing device also includes a subtractive tool assembly including a subtractive tool and an insert sleeve. At least a portion of one or more cutting surfaces or edges of the subtractive tool extend outside the central channel of the shoulder when the subtractive tool is removably received in the insert sleeve and the insert sleeve is received in the central channel of the shoulder.

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 method for producing a textile material, such as a shoe upper, including providing a shaping carrier, such as a last; providing a plasticizing unit for melting a polymer composition to provide a molten polymer composition; providing a depositing unit with a dosing head which includes at least one nozzle; applying the molten polymer composition via the at least one nozzle on the shaping carrier in a filament forming a plurality of loops on the shaping carrier. The depositing unit and / or the shaping carrier are in a first movement moved relative to each other such that the at least one nozzle moves along a drive path which runs on the shaping carrier. During forming each loop, the dosing head and / or the at least one nozzle is moved in a second movement along a loop depositing path with a path length such that the length of each loop formed on the carrier is larger than the path length of the depositing path.

A nozzle embedded type 3D printing device for a thermosetting wood-plastic composite material belongs to the technical field of 3D printing, and comprises a rack, and an extrusion movement mechanism, a powder laying mechanism, a powder bed mechanism, a printing platform movement mechanism and a binder feeding system which are arranged on the rack, and the extrusion movement mechanism is fed through the feeding system. The printing efficiency of existing printing equipment can be improved, the manufacturing and maintenance cost of the existing equipment is reduced, the accuracy and consistency of a printing structure are ensured, and printing of a high-precision complex structure is achieved; the provided equipment combines the advantages of extrusion type printing equipment and a powder bed structure, the requirement of single extrusion printing for the formability of extruded materials is met, controllable printing of large-flow, high-viscosity and large-layer-thickness printing shapes and precision is achieved, the equipment is suitable for various types of binder materials, the variety and size range of powder bed materials is large, and the equipment is suitable for large-flow, high-viscosity and large-layer-thickness printing. And the rapid part forming machining requirements of wide material application range, large forming size and high part strength are met.

The utility model relates to a wire feeding device for 3D printing, and solves the technical problem of how to enable a fiber printing mode of a spray head to be more stable and reliable in existing 3D printing equipment. The device comprises a vertical supporting plate, a driving roller driving motor, a roller shaft, a first synchronous belt wheel, a second synchronous belt wheel, a first synchronous belt, a driving roller, a driven roller, a jackscrew connecting block, a driven roller connecting block, a jackscrew, an extension spring and a feeding disc, the jackscrew connecting block is connected to the vertical supporting plate, and a sliding groove is formed in the jackscrew connecting block; the driven roller connecting block is located in a sliding groove of the jackscrew connecting block, the jackscrew is connected with an inner threaded hole of the jackscrew connecting block, the front end of the jackscrew abuts against the side face of the driven roller connecting block, the driven roller is rotationally connected with the driven roller connecting block, and one end of the extension spring is connected with the driven roller connecting block. The other end of the extension spring is connected with the jackscrew connecting block, and the driven roller is close to the driving roller. The 3D printer is widely applied to 3D printing equipment.

A shoe, a shoe production system and a method for producing a shoe including the steps: a. providing an upper assembly (2), wherein the upper assembly includes an upper (3) being mounted on a carrier (4), wherein the upper (3) includes a bottom section (5) being made from a thermoplastic polymer upper material; b. providing a sole molding unit (6), wherein the sole molding unit defines a cavity; c. inserting the upper assembly (2) at least partially into the cavity; introducing a midsole polymer composition comprising a molten thermoplastic polymer midsole material which has a melting temperature being equal or higher than the melting temperature of the thermoplastic polymer upper material into the cavity and foaming the molten thermoplastic polymer midsole material inside the cavity to provide a foamed midsole and to establish a material-bonded connection between the upper (3) and the foamed midsole (8).

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 embodiment of the utility model provides a multi-consumable extrusion printing device and 3D printing equipment applying the multi-consumable extrusion printing device. The multi-consumable extrusion printing device comprises a driving assembly, a switching assembly and a plurality of extrusion assemblies. The multiple extrusion assemblies are arranged side by side, each extrusion assembly comprises an extrusion gear set, and the extrusion gear sets are used for extruding consumables in the first direction; the driving assembly comprises a gear driving part, and the gear driving part is constructed to be capable of being meshed with one of the extrusion gear sets; the switching assembly comprises an abutting part, the abutting part is arranged on the sides, away from the gear driving part, of the multiple extrusion assemblies, and the abutting part is configured to abut against one extrusion assembly so that the extrusion gear set corresponding to the extrusion assembly can move in the first direction, and therefore the extrusion gear set can be meshed with the gear driving part.

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 utility model relates to the field of printers, in particular to a 3D printing anti-blocking nozzle which comprises a shell, a discharging head and a sliding rod, the sliding rod comprises a handle facilitating an operator and an ejector pin used for penetrating through the discharging head in a poking mode, the sliding rod slides in the axial direction of the sliding rod under limitation and guide of the shell, and the axis of the ejector pin and the axis of the discharging head are collinear. After a user pulls or presses the sliding rod, the ejector pin can clean the inner diameter of the discharging head, and raw materials are prevented from remaining in the discharging head; if the raw materials are hardened, the ejector pin can also extrude out part of the raw materials of the discharging head, at the moment, an operator pulls out residual filaments through tweezers, and the cleaning efficiency can also be improved. After the anti-blocking nozzle is used for a period of time, the sliding rod can be manually pulled, the discharging head can be properly conducted, and the period of disassembling and replacing the discharging head is prolonged.

The present disclosure relates to a pulsing release module, a pulsing release resin tank, and a 3D printing device and printing method. The pulsing release module comprises a resin tank assembly, a support assembly and a pulse gas supply assembly, wherein the resin tank assembly is provided with a release film; the support assembly is arranged below the resin tank assembly, the support assembly is provided with a support member, and a first preset distance is provided between the support member and the release film in a height direction and is configured to form a gas cavity between the support member and the release film; a gas inlet and a gas outlet, which are in communication with the gas cavity, are provided in the support member; and the pulse gas supply assembly comprises a gas oscillation assembly and a gas conveying line, the gas oscillation assembly being arranged on the gas conveying line, and the gas conveying line being connected to the gas inlet.

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 present application provides an automatic calibration method for a 3D printing device, a 3D printing device, an electronic device and a storage medium. The method comprises: controlling a first jet to move, so that a nozzle of the first jet is aligned with an optical axis of an imaging apparatus, and then controlling the imaging apparatus to take a first image of a first recognition apparatus; controlling a second jet to move, so that a nozzle of the second jet is aligned with the optical axis of the imaging apparatus, and then controlling the imaging apparatus to take a second image of a second recognition apparatus; on the basis of the first image and a first actual characteristic physical quantity of the first recognition apparatus, calculating a first distance between the first recognition apparatus and the imaging apparatus; on the basis of the second image and a second actual characteristic physical quantity of the second recognition apparatus, calculating a second distance between the second recognition apparatus and the imaging apparatus; on the basis of the first distance and the second distance, calculating a vertical offset of the first jet and the second jet. The present application can automatically calibrate the jets of a 3D printing device with high calibration accuracy, and can save labor costs.

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 invention discloses a photocuring 3D printing mechanism method for multi-material cooperative spraying, and relates to the field of cooperative control, and the photocuring 3D printing mechanism method comprises the following steps: layering a model, generating a material distribution map, and labeling a functional area and a transition area; a multi-nozzle array is used for accurately positioning and spraying according to the atlas; a gradual change path is planned in the transition area, and gradient change of material components is achieved through cooperative spraying; a partition curing strategy is adopted, ultraviolet light full curing and visible light semi-curing are adopted, and leveling is promoted in combination with micro-vibration; spraying a penetrating agent between layers to form a mechanical interlocking enhanced interface; based on visual online defect detection, printing parameters are fed back and adjusted in real time through a CNN model. The device and the method have the advantages that accurate mixing of multiple materials is realized through cooperative spraying of the multiple piezoelectric sprayers and gradual change path planning, and real-time defect detection and correction can be realized by matching with differentiated photocuring, high-frequency micro-vibration leveling and interlayer penetrating agent interlocking, so that high-precision multi-material functional component forming is efficiently completed.

A method includes curing a photopolymer resin disposed between a first build surface and a flexible film layer to form a print layer of a printed part. Here, the print layer of the printed part defines a second build surface attached to the flexible film layer. The method also includes translating a peeling mechanism between the second build surface and the flexible film layer to detach the flexible film layer from the second build surface.

The embodiment of the invention provides 3D printing equipment which comprises a nozzle assembly and a forming platform and further comprises a portal frame, a first driving assembly and a second driving assembly. The portal frame comprises a frame, a connecting structure and a positioning structure which are integrally formed or detachably arranged, and the frame is used for supporting the portal frame; the first driving assembly is mounted on the connecting structure, and the first driving assembly is used for driving the nozzle assembly; the second driving assembly is installed on the positioning structure and used for driving the forming platform.

Support structures are used in certain additive fabrication processes to permit fabrication of a greater range of object geometries. For additive fabrication processes with materials that are subsequently sintered into a final part, an interface layer is formed between the object and support in order to inhibit bonding between adjacent surfaces of the support structure and the object during sintering.

The utility model discloses a spray head mechanism capable of being disassembled quickly, which comprises a heat dissipation assembly and a nozzle assembly, the nozzle assembly comprises a nozzle, a heat conduction block and a throat pipe, the heat conduction block surrounds part of the throat pipe, the heat dissipation assembly is positioned above the heat conduction block, surrounds part of the throat pipe and comprises a front heat dissipation sheet and a rear heat dissipation sheet, and the front heat dissipation sheet is positioned above the heat conduction block. And the front radiating fin and the rear radiating fin are hinged and attracted by a magnet. The heat dissipation assembly dissipates heat of the throat pipe. The heat dissipation assembly and the nozzle assembly are made into a split detachable structure, compared with the situation that the heat dissipation assembly and the nozzle assembly are integrated, only the nozzle assembly needs to be replaced when the plug is blocked, more convenience is achieved, and the maintenance cost is reduced.

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.

A powder spreading device includes a device body, an adjustment assembly, and a dust removing mechanism. The adjustment assembly is provided on the device body. The adjustment assembly is configured to orient to a powder spreading surface. A first end of the dust removing mechanism is provided on the device body. The first end of the dust removing mechanism is covered over the adjustment assembly. A second end of the dust removing mechanism is communicated to the first end of the dust removing mechanism. The second end of the dust removing mechanism is configured to extend to the device body. A three-dimensional (3D) printing device and a 3D printing system are further provided.

A three-dimensional printing device for printing one or more three-dimensional products. The 3D printing device comprises a print surface configured to support the printing of the one or more 3D products, a frame arranged at a distance above the print surface, wherein the frame is oriented in a first plane substantially parallel to the print surface, a printing head comprising a printing nozzle configured for dosing the build material on the print surface or on a previous layer in a dosing direction to print the one or more 3D products in a series of layers, wherein the printing nozzle is arranged to extend at an acute internal angle measured between the print surface and the dosing direction, and wherein the printing head is movably coupled to the frame such that the printing head is movable along the first plane with respect to the print surface and wherein the print head is movable in a vertical direction with respect to the print surface, a controller configured to control a movement of the printing head along the first plane and / or in the vertical direction.

The invention relates to the technical field of 3D printing, and discloses a fiber reinforced composite material 3D printer and a printing method, current deposition tows are heated / cooled under the action of a preset interlayer pressing force through an interlayer pressing device, interlayer fusion can be promoted, the interlayer bonding strength can be improved, the heat history in the wire cooling process can be eliminated, and the 3D printing quality of the fiber reinforced composite material is improved. The crystallization behavior, the grain size and the grain distribution of a polymer in a printing wire material are controlled, and the microscopic uniformity of a composite material printing product is improved. The side face and the upper surface of the current deposition tow are subjected to hot-pressing shaping through the inter-channel pressing device, meanwhile, secondary hot-pressing is conducted on the adjacent printing layer deposition tow, resin of the current deposition tow and resin of the adjacent printing layer deposition tow can be melted and flow, so that the inter-channel gap between the adjacent printing layers is filled, and the printing effect is improved. And the inter-track bonding strength is improved.

The present disclosure relates generally to manufacturing pharmaceutical products using additive manufacturing technology. An exemplary printing system comprises: a material supply module for receiving a set of printing materials; a flow distribution module comprising a flow distribution plate, wherein the material supply module is configured to transport a single flow corresponding to the set of printing materials to the flow distribution plate; wherein the flow distribution plate comprises a plurality of channels for dividing the single flow into a plurality of flows; a plurality of nozzles, wherein the plurality of nozzles comprises a plurality of needle-valve mechanisms; one or more controllers for controlling the plurality of needle-valve mechanisms to dispense the plurality of flows based on a plurality of nozzle-specific parameters; and a printing platform configured to receive the dispensed plurality of flows, wherein the printing platform is configured to move to form a batch of the pharmaceutical product.

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.

The utility model discloses an automatic material supplementing and powder spreading mechanism of an SLS printer, which belongs to the technical field of SLS printers and comprises a frame shell, a double-rod reciprocating translation mechanism is arranged in the frame shell, and sliding openings are formed in the upper sides of the two transverse straight ends of the frame shell. The two ends of the double-rod reciprocating translation mechanism penetrate through the two sliding openings correspondingly and are fixedly connected with a powder containing groove box, the bottom of the powder containing groove box communicates with a powder laying opening, a discharging mechanism is arranged in the powder laying opening, and the double-rod reciprocating translation mechanism comprises a stepping motor fixed to one side of the frame shell. According to the SLS printing powder spreading device, printing powder in the powder spreading opening can be stably discharged through the discharging mechanism, the uniformity of material spreading is improved, the double-rod reciprocating translation mechanism can drive the powder containing groove box to do reciprocating translation, the uniformity of material spreading during SLS printing is achieved, the structural stability is high, the effective distance of the displacement stroke is long, and the working effect is good.

Aspects relate to a three-dimensional (3D) printing device including a gantry system configured to move a build platform between the different stages of the printing process. The stages may include, for example, printing, washing, and post curing. The gantry system includes a gantry rail and a gantry carriage. The gantry carriage can be removably attached to a build platform on which a printed object is printed and the gantry rail can then move the build platform between at least the printing and washing stages.

The invention relates to the technical field of additive manufacturing 3D printing, and discloses a 3D printing head for a continuous fiber reinforced composite material and a printing method. A concentric circle type step temperature control module is used for applying preset step type temperature fields distributed from inside to outside in a gradient mode to adjacent printing layer deposition tows and current deposition tows in the printing process, and the grain size and uniformity of crystalline resin in the adjacent printing layer deposition tows and the current deposition tows are regulated and controlled. The large deformation degree of a printed product after forming is avoided; and meanwhile, in the printing process, secondary heating melting is conducted on deposition tows of adjacent printing layers, under the action of a preset pressure field, fusion of the deposition tows of the adjacent printing layers and current deposition tows is promoted, the bonding strength between printing layers / channels is improved, and then the mechanical property of a 3D printing continuous fiber additive manufacturing printing product is improved.

A reconfigurable printing bed device for additive manufacturing or three dimensional (3D) printing includes a reconfigurable printing bed defining a surface configured to receive a deposited material. The bed includes a lattice component comprising a plurality of connected cells each having an open region. The bed includes a flexible elastomeric polymer disposed with the open regions to define a flexible mat. A plurality of actuatable pins is disposed beneath the bed. Each pin is connected to a location on the reconfigurable printing bed to translate it to a predetermined position so that the reconfigurable printing bed is capable of defining a structure having at least a single curvature. Methods of additive manufacturing on such a dynamic reconfigurable printing bed are also contemplated. After passing through a 3D printing extruder, the flowable material may be deposited onto a surface of a reconfigurable printing bed where it hardens as a printed structure.

A method and system for additive manufacturing are provided herein. The method comprises depositing a structure material, by a nozzle (810), into a support material (808) by applying to the structure material such that the structure material flows through the nozzle. The structure material comprises a polymer and a rheological modifier. Depositing of the structure material is repeated as necessary to create an object (814). The support material is at least partially removed from object. In various examples, the method comprises varying a print parameter from a first portion of the object to a second portion of the object, moving the nozzle away from a previously deposited layer of the object when repositioning for deposition of a subsequent layer of the object, or a combination thereof.