CN204725851U - A kind of three-dimensional fast shaping prints engraving machine - Google Patents

Abstract

The utility model discloses a kind of novel three-dimensional rapid shaping and print engraving machine: include engraving module and extrude head module, the roughly path of model level is laid fast by extruding head module, then by the graver of engraving module, fine milling limit is carried out to the roughly path of laying, obtain high speed and high-precision model.

Description

A three-dimensional rapid prototyping printing engraving machine

technical field

This patent relates to the technical field of three-dimensional rapid prototyping printing, especially a new type of prototyping equipment that combines printing and engraving functions.

Background technique

At present, the usual rapid prototyping technology is to use hot-melt wires to control the movement of the hot-melt extrusion nozzle through the numerical control system to realize the materialization of three-dimensional computer images, but its speed and accuracy are limited by the thickness of the extrusion nozzle. When the extrusion nozzle is thin When the extrusion nozzle is thick, the speed is relatively increased, but the accuracy is obviously reduced.

Contents of the invention

In order to overcome the contradiction between the precision and speed of existing rapid prototyping machines, this patent provides a rapid prototyping device with mixed printing and engraving functions, which can ensure the precision of three-dimensional object forming while achieving high-speed prototyping.

The technical solution adopted by this patent to solve its technical problems is: install an engraving module on the movement parallel plane of the extrusion nozzle of the rapid prototyping machine, and the engraving module is controlled by a spindle motor to rotate the engraving knife, and is controlled by a numerical control lifting transmission device or adjusted The height of the Z-axis controls the level that the engraving knife can reach. Whenever the extrusion nozzle completes a level of wire walking, start the engraving module. Under the control of the CNC system, it moves along the model shell at a certain depth level, milling The excess part of the layer is extruded by the extrusion nozzle. High-speed and high-precision molding can be achieved through the cooperation of large-diameter extrusion nozzles and fine engraving knives.

The beneficial effect of this patent is that through the large-diameter extrusion nozzle of the three-dimensional rapid prototyping equipment, a layer of rough wire is quickly laid, and then the fine carving knife of the engraved part is used to carve out a high-precision shape along the fine path of the model on this layer , this construction method can effectively break through the bottleneck of existing rapid prototyping machines and meet the requirements of high speed and high precision.

Description of drawings

Figure 1 is a structural schematic diagram of a printing engraving machine with a fixed engraving module and an extrusion nozzle module of this patent.

      Figure 2 is a structural schematic diagram of a printing engraving machine with an engraving module and a fixed extrusion nozzle module of this patent.

Figure 3 is a structural schematic diagram of the engraving module of this patent.

Figure 4 is a schematic diagram of the structure of the extrusion nozzle module of this patent.

In the figure: 1 is the extrusion nozzle module; 2 is the fixed engraving module; 3 is the printing bed; 4 is the fixed extrusion nozzle module; 5 is the engraving module; 6 is the CNC motor of the engraving module; 7 is the lifting transmission wire of the engraving module Rod; 8 is the spindle motor of the engraving module; 9 is the engraving knife of the engraving module; 10 is the numerical control motor of the extrusion nozzle module; 11 is the lifting transmission screw rod of the extrusion nozzle module; 12 is the extrusion nozzle of the extrusion nozzle module .

Detailed ways

The following is a further description of this patent in conjunction with the accompanying drawings and specific implementation methods:

In some embodiments, the three-dimensional rapid prototyping machine Figure 1 has a fixed engraving module 2 and an extrusion nozzle module 1, and the numerical control lifting of the extrusion nozzle module composed of a numerical control motor 10 in the extrusion nozzle module and a lifting transmission screw 11 The transmission device sends the extrusion nozzle 12 to the designated position, and then the extrusion nozzle module is driven by the XY axis to lay the extruded hot melt material on the printing bed 3 into the approximate path of the three-dimensional model on this layer. After the path of the layer, it is controlled to return to its original position, and then the printing bed is controlled by the Z axis to rise to a certain layer thickness, and then the engraving knife driven by the spindle in the fixed engraving module passes the XY axis along the 3D model on the precise periphery of the layer The path moves, milling off the excess part of the hot melt material laid by the previous hot melt extrusion head, so that the hot melt material of the 3D model on this layer meets the precise requirements of the model, and then the Z axis of the 3D rapid prototyping machine drives the printing bed down Go to the next layer and repeat the above steps until the entire 3D model is printed.

In some embodiments, the three-dimensional rapid prototyping machine Fig. 2 has an engraving module 5 and a fixed extrusion nozzle module 4, and the fixed extrusion nozzle module is driven by the XY axis to lay the extruded hot melt material on the printing bed into a three-dimensional model on the The approximate path of the layer, and then the CNC lifting transmission device composed of the CNC motor 6 and the lifting transmission screw 7 in the engraving module sends the engraving knife 9 driven by the spindle 8 to the lower layer of the layer, and then passes the XY axis along the three-dimensional model in the The precise peripheral path of this layer moves, milling off the excess part of the hot melt material laid by the previous hot melt extrusion head, so that the 3D model can reach the precise requirements of the model in the hot melt material of this layer, and then returns to the original position, and then the 3D The Z-axis of the rapid prototyping machine drives the printing bed down to the next level, and repeats the above steps until the entire 3D model is printed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Various other corresponding changes and deformations made in the present invention shall fall within the protection scope of the claims of the present invention.

Claims (9)

1. three-dimensional fast shaping prints an engraving machine, it is characterized in that, comprising:

Engraving module;

Fixedly extrude head module;

The plane of movement of described engraving module is parallel to printing bed;

The range of movement of described engraving module is at least in the print range printing bed;

The described plane of movement fixedly extruding head module is parallel to printing bed;

Described fixedly extrude shower nozzle range of movement at least print bed print range in.

2. a kind of three-dimensional fast shaping as described in claim 1 prints engraving machine, it is characterized in that:

Described engraving module comprises:

Graver, digital control lifting transmission device, main shaft;

Described digital control lifting transmission device controls the lifting position of graver;

The rotation of described Spindle control graver.

3. a kind of three-dimensional fast shaping as described in claim 1 prints engraving machine, it is characterized in that:

Described head module of fixedly extruding is without independently digital control lifting transmission device.

4. a kind of three-dimensional fast shaping as claimed in claim 2 prints engraving machine, it is characterized in that:

The direction of the digital control lifting transmission device control graver motion of described engraving module is not parallel with printing bed;

The digital control lifting transmission device of described engraving module controls other transmission devices independent of this printing engraving machine.

5. three-dimensional fast shaping prints an engraving machine, it is characterized in that, comprising:

Fixing engraving module;

Extrude head module;

The plane of movement of described fixing engraving module is parallel to printing bed;

The range of movement of described fixing engraving module is at least in the print range printing bed;

The described plane of movement extruding head module is parallel to printing bed;

Described extrude head module range of movement at least print bed print range in.

6. a kind of three-dimensional fast shaping as described in claim 5 prints engraving machine, it is characterized in that:

Described fixing engraving module comprises:

Graver, main shaft;

The rotation of described Spindle control graver.

7. a kind of three-dimensional fast shaping as described in claim 5 prints engraving machine, it is characterized in that:

Described head module of extruding comprises:

Extrude shower nozzle, digital control lifting transmission device;

Described digital control lifting transmission device controls the lifting position extruding shower nozzle.

8. a kind of three-dimensional fast shaping as claimed in claim 6 prints engraving machine, it is characterized in that:

The direction of the digital control lifting transmission device control graver motion of described fixing engraving module is not parallel with printing bed;

Described fixing engraving module is without independently digital control lifting transmission device.

9. a kind of three-dimensional fast shaping as claimed in claim 7 prints engraving machine, it is characterized in that:

It is not parallel with printing bed that the cephalomotor direction of spray is extruded in described digital control lifting transmission device control of extruding head module;

Described digital control lifting transmission device other transmission devices independent of this printing engraving machine extruding head module.