RU197646U1 - HIGH PERFORMANCE 3D PRINTER - Google Patents

Abstract

The utility model relates to the field of additive technologies and can be used for the manufacture of parts by three-dimensional printing for use in various industries. The 3D printer includes a table and a second printing device, which is located symmetrically to the first printing device relative to the table. The workpiece of the part is located on the table, and the table is arranged to rotate the workpiece in three degrees of freedom and has locking grips to hold the workpiece in the process of three-dimensional printing of the part. The utility model allows to increase the productivity of three-dimensional printing of parts and reduce the time of manufacturing parts.

Description

The utility model relates to the field of additive technologies and can be used for the manufacture of parts by three-dimensional printing for use in various industries.

An analogue of the utility model is a technical solution of Autodesk, Inc. (USA) according to the patent for invention US 20180253080 A1 (class B29C 64/118, publ. September 6, 2018), including: a construction platform; two printing devices designed for the joint manufacture of parts in sections using a manufacturing tool.

The described technical solution has the following disadvantages: three-dimensional printing of the part is carried out only in the area above the table, which does not allow efficient use of the entire volume of construction defined by the table; the design contains two printing devices that together produce the part in sections in the area above the table, which complicates the process of controlling the coordinated movement of the printing devices.

Another analogue of the utility model is the technical solution of the company "MarkForged, Inc." (USA) according to the patent for invention US 20140328963 A1 (class B29C 67/00, publ. November 6, 2014), comprising: a composite fiber supply unit, a movable construction platform, a print head, as well as actuators for moving the print head and platform construction relative to each other in three degrees of freedom.

The described technical solution has the following disadvantages: the design contains a table that does not allow to produce the part at different angles in different planes; 3D-printer contains one printing device, which does not allow to significantly increase the productivity of the process of three-dimensional printing; three-dimensional printing of the part is carried out only in the area above the table, which does not allow efficient use of the entire volume of construction defined by the table.

The technical solution of Stratasys, Inc. is also known. (USA) according to the patent for invention US 20180222110 A1 (class B29C 64/112, published 09.08.2018), comprising: a construction platform, a movable print head, a cutting tool in the form of a radiation source (excimer laser).

The described technical solution has the following disadvantages: the 3D printer contains a table that does not allow manufacturing of the part at different angles in different planes; 3D-printer contains one printing device, which does not allow to significantly increase the productivity of the process of three-dimensional printing; three-dimensional printing of the part is carried out only in the area above the table, which does not allow efficient use of the entire volume of construction defined by the table.

The closest analogue of the claimed utility model adopted as a prototype is the technical solution of Embodiment (RU) LLC according to the utility model patent No. RU 186514 U1 (class B29C 64/20, published on January 22, 2019 Bull. No. 3): 3D a delta printer comprising a housing connected to upper and lower bases on which guide rods are vertically mounted on which carriages are mounted, a table, a printing device including a working tool in the form of a head and a connecting part, leashes, each of which is attached at one end to the connecting part, and the second end is pivotally to the carriage, a feeder for automatic material feeding, the carriage drive mechanisms, a control unit, the table is rotatable and rotatable, and its tabletop is made of glass with a heating element.

The described technical solution has significant drawbacks: the ST-printer contains one printing device, which does not allow to significantly increase the productivity of the three-dimensional printing process; three-dimensional printing of the part is carried out only in the area above the table, which does not allow efficient use of the entire volume of construction defined by the table.

The technical problem to which the utility model is directed is the manufacture of parts by three-dimensional printing.

The technical result of the claimed utility model is to increase the productivity of the manufacturing process of parts by three-dimensional printing and reducing the time of manufacturing parts.

This is achieved by using a second printing device in a 3D printer, which is located symmetrically to the first printing device relative to the table and provides, together with the first printing device, the formation of the part on its workpiece.

The specified technical result is also achieved by making the workpiece in the form of a sphere or polyhedron with overall dimensions of at least 5 × 5 × 5 mm, as well as supplying the print head with consumables in solid form in the form of powder, or granules, or wire.

It is known from the prior art that the time taken to produce a part by three-dimensional printing is generally directly proportional to the volume of the part and inversely proportional to the product of the speed of movement of the print head by the width and height of the track of the material being laid. Therefore, to increase the productivity of a 3D printer, it is necessary: to increase the number of printing devices; distribute the volume of the manufactured part between the printing devices; Optimize 3D printing options.

The utility model is illustrated by drawings:

FIG. 1 - High-performance 3D printer, general view;

FIG. 2 - High-performance 3D printer, right side view (sectional view);

Figure 3 - High-performance 3D printer, left side view (sectional view).

In one possible embodiment, the 3D printer has a housing (1), which is made of durable and lightweight material, such as aluminum. A table (2) is installed inside the case. The table is located on a plane that divides the construction volume of the part in half. The workpiece (3) of the part is located on the table. The billet may take the form of a sphere or a polyhedron with overall dimensions of at least 5 × 5 × 5 mm. To hold the workpiece in the process of forming the part, the table contains fixing clamps (4). To enable rotation of the workpiece in three degrees of freedom, the table contains a rotary device (5), one main drive mechanism (6) that drives the rotary device, and additional drive mechanisms (7) located evenly on the table in the form of a circular array of four pieces . Additional drive mechanisms rotate the locking jaws (4). Thus, the table provides rotation of the workpiece in three degrees of freedom and allows you to orient the workpiece of the part in space so that subsequent elements of the part are printed in layers on top of the workpiece. Four pairs of guide rods (8) are uniformly located and fixed on the housing (1). On the guide rods with bearings (9), the first and second bases (10, 11) are installed, on which the first and second printing devices (12, 13) are placed. The second printing device (13) is located symmetrically to the first printing device (12) relative to the table (2). The linear movement of the upper and lower bases (10, 11) along the guide rods (8) is carried out by using a screw-nut transmission (14), consisting of a nut (15) and a lead screw (16), driven by a stepper motor (17) . The first and second printing devices (12, 13) include a print head (18) with a consumable supply unit (19). Depending on the technology of three-dimensional printing, the consumable may be in the form of a powder, granules, or wire. The print head can be placed on the carriage (20). The carriage with the working tool can be installed on the portal (21). The carriage can be moved using a belt (22), driven by a pair of stepper motors (23), and the portal can be located on guide rails (24), mounted on the first and second bases (10, 11). The movement of the structural components of the 3D printer is limited by means of end sensors (not shown). The movements of the moving structural elements of the 3D printer and the operating modes of the printing devices are controlled using a control computer (not shown).

Claims (3)

1. 3D printer containing a table located in the housing of the first printing device with a working tool in the form of a print head with a consumable supply unit, characterized in that it contains a second printing device located symmetrically to the first printing device relative to the table, providing, together with the first printing device forming the part on its workpiece, while the workpiece is located on the table, which is configured to provide rotation of the workpiece in three degrees of freedom and has holding it captures. 2. The 3D printer according to claim 1, characterized in that the workpiece has the shape of a sphere or a polyhedron with overall dimensions of at least 5 × 5 × 5 mm. 3. The 3D printer according to claim 1, characterized in that, depending on the technology of three-dimensional printing, the consumable is made in the form of powder, or granules, or wire.

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