CN205075351U - 3D (three -dimensional) printing equipment - Google Patents

Abstract

The utility model discloses a 3D printing device, which comprises a base, the base is connected with a moving mechanism of the base, vertical supports with vertical guide rails are arranged on both sides of the base; the vertical supports are hinged with a third connecting rod, and the third connecting rod The rod is hinged with the fourth connecting rod, the fourth connecting rod is connected with the second slider in the vertical guide rail, the second slider is connected with the second horizontal support, the third connecting rod is connected with the second motor, and the second motor is connected by the computer control; the second horizontal support is provided with a third motor, and the third motor drives the belt to move through the pulley, and the belt drives the movement of the printing body; the printing body includes a box, and a printing disc is arranged under the box, and a There are several printing heads, and the printing heads are respectively connected with printing materials of different colors, and a printing valve is set between the printing materials and the printing heads, and the opening and closing of the printing valves are controlled by a computer. The utility model has the advantages of simple structure and low price, and can print models with various colors.

Description

3D printing equipment

technical field

The utility model relates to a printing device, in particular to a 3D printing device.

Background technique

3D printing technology is based on the computer three-dimensional design model, and uses software to discretely decompose it into several layers of plane slices, and then the CNC forming system uses laser beams, hot-melt nozzles, etc. to process powdery, liquid or filamentous metals, ceramics, Materials such as plastics and cell tissues are stacked and bonded layer by layer, and finally superimposed to form a physical product. 3D printer is the core equipment of 3D printing. It is a complex mechatronic system integrating machinery, control and computer technology. It is mainly composed of subsystems such as high-precision mechanical system, numerical control system, injection system and molding environment. Contrary to the "subtractive manufacturing technology" of the traditional manufacturing industry, 3D printing follows the principle of addition, that is, the principle of "layer-by-layer superposition". It no longer requires traditional tools, fixtures and machine tools, and can realize the integration of design and manufacturing, thereby greatly It reduces the production cost and shortens the processing cycle, improves the utilization rate of raw materials and energy, reduces the impact on the environment, and can realize the design and manufacture of complex structure products, and the density of molded products is more uniform.

Different types of rapid prototyping systems have different forming principles and system characteristics due to the different forming materials used. But they are all based on the principle of discrete accumulation, that is, the method of layer-by-layer manufacturing and layer-by-layer stacking. The basic process is: first use computer software to design a three-dimensional model, then discretize the three-dimensional digital model into surfaces, lines and points, and then stack them in layers through 3D printing equipment, and finally become a three-dimensional object. 3D printing is like building a house and building a pyramid layer by layer. The difference is that building a house is done under human operation, while additive manufacturing is done under the control of a computer.

Existing 3D printing equipment is not only complicated in structure and expensive, but also can only print one color at a time. We urgently need a 3D printing device with simple structure and low price, which can print models in various colors.

Utility model content

The purpose of the utility model is to provide a 3D printing device with simple structure and low price, which can print models with multiple colors.

The technical solution adopted by the utility model is: a 3D printing device, including a base, the base is connected with the base moving mechanism, and the two sides of the base are provided with vertical supports with vertical guide rails;

The vertical support is hinged to the third connecting rod, the third connecting rod is hinged to one end of the fourth connecting rod, the other end of the fourth connecting rod is connected to the second slide block in the vertical guide rail, and the second slide block is connected to the second slide block in the vertical guide rail. The two horizontal brackets are connected, the third connecting rod is connected with the second motor, and the second motor is controlled by a computer; the second motor, the third connecting rod, the fourth connecting rod, and the second slider form a crank slider mechanism, and the second motor drives The third connecting rod moves, the third connecting rod drives the fourth connecting rod to move, the fourth connecting rod drives the second slider to move up and down, thereby driving the second horizontal support to move up and down;

The second horizontal support is provided with a third motor, the third motor drives the belt to move through the pulley, the belt drives the printing body to move, the third motor drives the belt to move through the pulley, thereby driving the printing body to move horizontally; the printing body It includes a box body, a printing circular plate is arranged under the box body, a number of printing heads are arranged under the printing circular plate, and the printing heads are respectively connected with printing materials of different colors, and a printing valve is set between the printing material and the printing head. The valve is opened and closed by computer control.

A further solution is: the base moving mechanism includes a first horizontal support with a first horizontal guide rail, a first motor, a first connecting rod, a second connecting rod, and a first slider, and the first connecting rod and the second connecting rod A horizontal bracket is hinged, the first connecting rod is hinged with the second connecting rod, the second connecting rod is connected with the first slider, the first slider is connected with the base, the first motor is connected with the first connecting rod; the first motor, the second The first connecting rod, the second connecting rod, and the first slider form a slider crank mechanism. The first motor drives the first connecting rod to move, the first connecting rod drives the second connecting rod to move, and the second connecting rod drives the first slider to move up and down. Move, thereby driving the base to move horizontally.

The base is located at the bottom and is used to support printed items. The base is connected to the first slider located in the first horizontal guide rail. The first motor works to drive the base to move horizontally; the third motor drives the belt to move, so that the print head Horizontal movement; the printing material is placed in the box, and a certain pressure is maintained in the box to facilitate the printing material in the printing material tank to pass through the print head; the heat insulation layer is placed around the inside of the box.

When working, slice and layer through the computer, and control the first motor, the second motor, the third motor and the printing valve according to the shape and color of each layer of printing to realize printing. Specifically: the computer selects the opening and closing of the printing valve of different printing materials according to the printing color, opens the printing valve in the printing outline according to the shape, and closes the printing valve after the first layer of printing is completed; the second motor works to make the second horizontal support Rising a certain distance (that is, to make the printing disc rise a certain distance), the first motor works to make the base move a certain distance horizontally, and the third motor works to make the printing head move a certain distance horizontally to control the opening and closing of the printing valve, and then Carry out the second layer of printing, and so on. During the whole printing process, the printing material in the printing circular plate remains in a melted state, which is conducive to speeding up the printing speed.

The utility model realizes the up and down movement of the printing circular plate on the second horizontal support through the second motor, so that the printing head moves up and down, realizes the horizontal movement of the base through the first motor, and realizes the horizontal movement of the printing head on the printing circular plate through the third motor. Move, so as to realize the printing and movement of each layer, the print head is connected with different printing materials, and the printing valve is set between the printing head and the printing material, and the printing valve is controlled by the computer to realize the printing of different colors on each layer. The whole 3D printing work, printing fast. The utility model has the advantages of simple structure, low manufacturing cost and cheap price, and is suitable for 3D printing occasions where the printing precision is not high or further finishing is required.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a three-dimensional structural schematic diagram of the utility model 3D printing equipment;

Fig. 2 is a schematic diagram of the front structure of the 3D printing device of the present invention;

Fig. 3 is a side view structural schematic diagram of the 3D printing device of the present invention;

Fig. 4 is a top view structural schematic diagram of the utility model 3D printing equipment;

Fig. 5 is a schematic diagram of the connection structure between the print head and the printing material.

In the figure: 1. base, 3. second motor, 4. first motor, 5. first connecting rod, 6. second connecting rod, 7. third motor, 8. vertical support, 9. fourth connecting rod Rod, 10, third connecting rod, 11, box body, 12, second horizontal support, 13, vertical guide rail, 14, printing head, 15, belt, 16, first horizontal support, 17, first slide block, 18, the second slide block, 19, the printing circular plate, 20, the first horizontal guide rail, 21, the printing valve, 22, the printing material.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1-5, a 3D printing device includes a base 1, the base 1 is connected to a base moving mechanism, and the base moving mechanism includes a first horizontal support 16 with a first horizontal guide rail 20, a second A motor 4, the first connecting rod 5, the second connecting rod 6, the first slider 17, the first connecting rod 5 is hinged with the first horizontal support 16, the first connecting rod 5 is hinged with the second connecting rod 6, The second connecting rod 6 is connected with the first slider 17, the first slider 17 is connected with the base 1, and the first motor 4 is connected with the first connecting rod 5; the first motor 4, the first connecting rod 5, the second connecting rod 6. The first slider 17 forms a slider crank mechanism, the first motor 4 drives the first connecting rod 5 to move, the first connecting rod 5 drives the second connecting rod 6 to move, and the second connecting rod 6 drives the first slider 17 to move up and down move, thereby driving the base 1 to move horizontally;

Both sides of described base 1 are provided with the vertical support 8 with vertical guide rail 13, and described vertical support 8 is hinged with the 3rd link 10, and the 3rd link 10 is hinged with the 4th link 9, and the 4th link 10 is hinged with the 4th link 9. The connecting rod 9 is connected with the second slide block 18 in the vertical guide rail 13, the second slide block 18 is connected with the second horizontal support 12, the third link 10 is connected with the second motor 3, and the second motor 3 is controlled by a computer; The second motor 3, the third connecting rod 10, the fourth connecting rod 9, and the second slider 18 form a slider crank mechanism, the second motor 3 drives the third connecting rod 10 to move, and the third connecting rod 10 drives the fourth connecting rod 9 movement, the fourth connecting rod 9 drives the second slider 18 to move up and down, thereby driving the second horizontal support 12 to move up and down;

The second horizontal support 12 is provided with a third motor 7, the third motor 7 drives the belt 15 to move through the pulley, and the belt 15 drives the printing body to move horizontally; Circular plate 19, several printing heads 14 are arranged under the printing circular plate 19, and described printing head 14 is respectively connected with the printing material 22 of different colors, is provided with printing valve 21 between printing material 22 and printing head 14, and described printing valve 21 is turned on and off by computer control; the third motor 7 drives the belt 15 to move through the pulley, thereby driving the printing circular plate 19 to move horizontally.

The base 1 is connected with the first slider 17 located in the first horizontal guide rail 20, the first motor 4 works to drive the base 1 to move horizontally; the third motor 7 drives the belt 15 to move, so that the print head 14 moves horizontally; the second motor 3 work to drive the printing head 14 to move up and down; the printing material 22 is placed in the box body 11, and a certain pressure is maintained in the box body 11, so that the printing material in the printing material tank can be printed by the printing head; Around the inside of the box body 11.

When working, slice and layer by computer, and control the first motor 4, the second motor 3, the third motor 7 and the printing valve 21 according to the shape and color of each layer of printing to realize printing. Specifically: the computer selects the opening and closing of the printing valve 21 of the corresponding printing material according to the printing color, opens the printing valve in the printing outline according to the shape, and closes the printing valve after completing the printing of the first layer; the second motor 3 works to make the second The horizontal support 12 rises a certain distance (that is, the printing circular plate 19 is raised a certain distance), the first motor 4 works to make the base 1 move a certain distance horizontally, and the third motor 7 works to make the printing head 14 move a certain distance horizontally. Control the opening and closing of the printing valve 21, and then carry out the printing of the second layer, and so on. During the entire printing process, the printing material in the printing circular plate 19 remains in a melted state, which is conducive to accelerating the printing speed.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present utility model.

Claims (2)

1. A 3D printing device, characterized in that: a base is included, the base is connected with the base moving mechanism, and the both sides of the base are provided with vertical supports with vertical guide rails; The vertical support is hinged to the third connecting rod, the third connecting rod is hinged to one end of the fourth connecting rod, the other end of the fourth connecting rod is connected to the second slide block in the vertical guide rail, and the second slide block is connected to the second slide block in the vertical guide rail. The two horizontal brackets are connected, the third connecting rod is connected with the second motor, and the second motor is controlled by a computer; The second horizontal support is provided with a third motor, and the third motor drives the belt to move through the pulley, and the belt drives the printing body to move; the printing body includes a box, and a printing disc is arranged under the box, and the printing disc A number of print heads are arranged below, and the print heads are respectively connected with printing materials of different colors, and a printing valve is set between the printing material and the printing head, and the opening and closing of the printing valve are controlled by a computer. 2. The 3D printing device according to claim 1, wherein the base moving mechanism comprises a first horizontal support with a first horizontal guide rail, a first motor, a first connecting rod, a second connecting rod, a first Slider, the first connecting rod is hinged with the first horizontal bracket, the first connecting rod is hinged with the second connecting rod, the second connecting rod is connected with the first slider, the first slider is connected with the base, the first motor is connected with the base The first link connects.