CN204076848U - A kind of colour mixture 3D head device - Google Patents

Abstract

A color mixing 3D printing head device is mainly composed of a heating unit, a first feeding throat, a second feeding throat, a third feeding throat, a screw and a nozzle. Both the feeding throat and the nozzle are connected to the heating unit, and the feeding throat communicates with the nozzle; the consumables of the three primary colors respectively enter the heating unit from the three feeding throats, and are drawn into the heating unit during the process of entering the heating unit. Melting; the lower end of the screw is connected to the heating unit, and the screw fully mixes the consumables of three primary colors input by the three feed ports respectively, and the consumables of the target color are formed and then extruded from the nozzle. The consumables of three primary colors are melted and mixed in a single nozzle, which can realize 3D printing of mixed color objects. The utility model has the characteristics of simple structure, low cost, convenient operation, etc., and provides technical support for printing mixed-color objects.

Description

A color mixing 3D printing head device

technical field

The utility model relates to a 3D printing head device, in particular to a color-mixing 3D printing head device.

Background technique

At present, most of the print head devices of FDM-based 3D printers are single-motor single-extrusion head devices, or dual-motor dual-extrusion head devices. Each print head can only print one consumable at a time, and the printed object has a single color. , unable to achieve continuous printing of colored objects. Therefore, existing technology awaits further improvement.

Contents of the invention

In order to overcome the deficiencies in the above-mentioned background technology, the utility model provides a color mixing 3D printing head device.

The technical solution adopted by the utility model to solve the technical problem is: a color mixing 3D printing head device, which consists of a heating unit 1, a first feeding throat 2a, a second feeding throat 2b, and a third feeding throat 2c , screw 3 and nozzle 4 components. The side of described heating unit 1 is respectively provided with feeding screw hole 120, heating tube hole 140, thermistor hole 110; The upper surface is provided with screw rod circular hole 130, and the lower surface is provided with nozzle threaded hole 150, and described screw rod circular hole 130 communicates with the nozzle threaded hole 150 . The heating unit 1 is connected to the first feeding throat 2a, the second feeding throat 2b, the third feeding throat 2c, the screw 3 and the nozzle 4 respectively through screw threads. The consumables of the three basic colors enter the heating unit 1 respectively from the first feeding throat 2a, the second feeding throat 2b, and the third feeding throat 2c, and then are melted in the heating unit 1, and the rotation of the screw 3 makes the three The consumables of the three primary colors are fully mixed to form consumables of the target color, and extruded from the nozzle 4, changing the ratio of the three primary color consumables can form a variety of color consumables.

The beneficial effects of the utility model are: by adjusting the ratio of the three basic color consumables, mixing them to form consumables of different colors, and realizing the printing of color-mixed objects with a single nozzle, the whole 3D printing head device is compact in structure, low in cost, and easy to operate. Colorful objects provide technical support.

Description of drawings

Accompanying drawing 1 is the overall structural representation of the utility model.

Accompanying drawing 2 is the sectional schematic view of the utility model.

Accompanying drawing 3 is the schematic sectional view of the heating unit in the utility model.

In the figure 1. heating unit, 2a. first feed throat, 2b. second feed throat, 2c. third feed throat, 3. screw, 4. nozzle, 110. thermistor hole, 120 .Feeding threaded hole, 130. Screw round hole, 140. Heating pipe hole, 150. Nozzle threaded hole.

Detailed ways

As shown in Figures 1 and 3, the heating unit 1 is a heating block with a built-in heating tube, and the heating block is provided with a thermistor hole 110 with an internal thread, and the feeding screw hole 120 represents three internally threaded thermistor holes. Threaded holes, a screw hole 130, a heating tube hole 140, a nozzle threaded hole 150 with internal threads.

As shown in Figures 1 and 2, the first feed throat 2a, the second feed throat 2b, the third feed throat 2c, the screw 3 and the nozzle 4 are all connected to the heating unit 1, the The three feeding throats are connected to the nozzle 4, and the three feeding throats are all provided with external threads, and are connected to the heating unit 1 in cooperation with the feeding threaded hole 120, and the screw 3 is connected to the heating unit 1 in cooperation with the screw hole 130. On the unit 1 , the nozzle 4 is provided with an external thread, which is matched with the nozzle threaded hole 150 and connected to the heating unit 1 .

After the heating tube works, the temperature of the heating unit 1 rises, and the temperature of the heating unit 1 can be detected by the thermistor. After the temperature reaches a predetermined value, the consumables of the three primary colors enter the heating unit 1 through the three feeding throats. , the consumables are melted in the process of entering the heating unit 1.

The consumables of three basic colors are fully mixed in the heating unit 1 through the rotation of the screw 3, and the consumables in different proportions are changed to form consumables of different colors. The consumables in the three feeding throats squeeze the melted and mixed consumables into the nozzle 4, and finally extrude from the nozzle 4 to realize the 3D printing of the single nozzle color mixing object.

Claims (2)

1. A color mixing 3D printing head device, consisting of a heating unit (1), a first feed throat (2a), a second feed throat (2b), a third feed throat (2c), a screw (3 ) and a nozzle (4), characterized in that: the side of the heating unit (1) is respectively provided with a feed screw hole (120), a heating pipe hole (140), a thermistor hole (110); the upper surface is provided with There is a screw hole (130), the lower surface is provided with a nozzle threaded hole (150), and the screw hole (130) communicates with the nozzle threaded hole (150). 2. A color-mixing 3D printing head device according to claim 1, characterized in that: the heating unit (1) is connected to the first feeding throat (2a), the second feeding throat (2b), The third feeding throat (2c), the screw (3), and the nozzle (4) are connected by threads.