Three-dimensional printing extrusion structure with high-precision spray head

Abstract

A three-dimensional printing extrusion structure with a high-precision spray head comprises an extrusion structure body, a smashing component, a feeding component, a heating component, a heat dissipation component and a printing component, the extrusion structure body comprises a supporting frame, the smashing component is fixedly arranged at the top end of the supporting frame, the feeding component is fixedly arranged at the upper end of the smashing component, and the heating component is fixedly arranged at the upper end of the heating component. The heating component is fixedly arranged in the supporting frame, the heat dissipation component is fixedly arranged on the outer side of the heating component, the printing component is fixedly arranged at the lower end of the heating component, the fixing frame provides moving and mounting space for the two sets of smashing rollers, meanwhile, the moving range of the two sets of smashing rollers is limited, and the two sets of smashing rollers are fixed through the fixing frame. And the guide plate is used for guiding particle materials crushed by the two groups of crushing rollers at the upper end.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing extrusion, in particular to a three-dimensional printing extrusion structure with a high-precision nozzle. Background Art

[0002] The extrusion device of a 3D printer is an important equipment for 3D printer processing. Most plastic particles are produced by first melting the plastic raw materials and then extruding them through an extruder. The printing precision of the printer depends on its nozzle. However, the existing printers can only install one nozzle. When replacement is needed, the machine needs to be stopped for manual replacement, which is inefficient and easily affects the printing precision. Content of the Utility Model

[0003] In order to achieve the above object, an embodiment of the utility model provides a three-dimensional printing extrusion structure with a high-precision nozzle, which includes an extrusion structure main body, a crushing component, a feeding component, a heating component, a heat dissipation component, and a printing component;

[0004] The extrusion structure main body includes a support frame;

[0005] The crushing component is fixedly arranged at the top end of the support frame, the feeding component is fixedly arranged at the upper end of the crushing component, the heating component is fixedly arranged inside the support frame, the heat dissipation component is fixedly arranged outside the heating component, and the printing component is fixedly arranged at the lower end of the heating component;

[0006] The crushing component includes a driving component, a fixing frame, a crushing roller, and a guide plate;

[0007] The fixing frame is fixedly arranged at the upper end of the support frame, the driving component is fixedly arranged on the left side of the fixing frame, two groups of the crushing rollers are rotatably arranged inside the fixing frame in a mirror image manner, and the guide plate is fixedly arranged at the lower end of the fixing frame;

[0008] The printing component includes a switching print head, a connecting pipe, and a rotating block;

[0009] A plurality of the switching print heads are movably arranged at the bottom end of the connecting pipe through a plurality of the rotating blocks, and the other end of the connecting pipe is fixedly arranged at the lower end of the crushing component;

[0010] A plurality of the switching print heads are arranged with different aperture sizes.

[0011] Further, the driving component includes a driving motor, a rotating shaft, a protective shell, a rotating tooth, and a transmission tooth;

[0012] The driving motor is fixedly arranged at the left end of the support frame through the protective shell. The rotating shaft is fixedly arranged on the output shaft of the driving motor. The rotating gear is fixedly arranged at one end of the rotating shaft and is rotatably arranged with the transmission gear.

[0013] Further, the feeding component includes a feeding frame and a feeding funnel.

[0014] The feeding frame is fixedly arranged at the upper end of the crushing component. The feeding funnel is fixedly arranged at the upper end of the feeding frame.

[0015] Further, the heating component includes a heating tank and heating sheets.

[0016] The heating tank is fixedly arranged at the lower end of the crushing component. A plurality of the heating sheets are fixedly arranged inside the heating tank.

[0017] Further, the heat dissipation component includes an outer shell, a heat dissipation fan, a duct, and air outlets.

[0018] The outer shell is fixedly arranged at the lower end of the extrusion structure main body. The heat dissipation fan is fixedly arranged inside the outer shell. The duct is fixedly arranged at the lower end of the outer shell. A plurality of the air outlets are opened on the inner side of the duct.

[0019] Compared with the prior art, the embodiment of the present utility model has the following beneficial effects:

[0020] The three-dimensional printing extrusion structure with a high-precision nozzle has a simple structure and is easy to use. The staff can put granular materials through the feeding funnel at the upper end and enter the crushing component at the lower end. The driving motor drives the rotating shaft and the rotating gear to be transmitted through the transmission gear, so that the two crushing rollers crush the granular materials. Then, it enters the heating tank at the lower end through the guide plate and is heated and melted by a plurality of the heating sheets. Then, it enters the switching print head at the lower end through the connecting pipe. The heat dissipation fan cools the internal temperature through the duct and a plurality of the air outlets. The setting of multiple switching print heads can facilitate the staff to switch between different apertures, and can effectively prevent the vibration and displacement caused by replacing the print head, affecting the printing precision and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present utility model will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 The isometric view of the present utility model is shown;

[0023] Figure 2 The isometric sectional view of the present utility model is shown;

[0024] Figure 3 Shows the left view of the present utility model.

[0025] In the figure:

[0026] 1. Extrusion structure main body; 11. Support frame; 2. Crushing component; 21. Fixing frame;

[0027] 22. Crushing roller; 23. Guide plate; 3. Feeding component; 31. Feeding frame; 32. Feeding funnel;

[0028] 4. Heating component; 41. Heating tank; 42. Heating sheet; 5. Heat dissipation component; 51. Outer shell;

[0029] 52. Heat dissipation fan; 53. Air duct; 54. Air outlet; 6. Printing component; 61. Switching print head;

[0030] 62. Connecting pipe; 63. Rotating block; 7. Driving component; 71. Driving motor; 72. Rotating shaft;

[0031] 73. Protective shell; 74. Rotating gear; 75. Driving gear. Detailed implementation mode

[0032] Now, the present utility model will be further described in detail with reference to the accompanying drawings. Please refer to Figure 1 , Figure 1 which shows the axonometric view of the present utility model; please refer to Figure 2 , Figure 2 which shows the axonometric sectional view of the present utility model; please refer to Figure 3 , Figure 3 which shows the left view of the present utility model; as Figures 1-3 shown, a three-dimensional printing extrusion structure with a high-precision nozzle includes an extrusion structure main body 1, a crushing component 2, a feeding component 3, a heating component 4, a heat dissipation component 5, and a printing component 6;

[0033] The extrusion structure main body 1 includes a support frame 11;

[0034] The crushing component 2 is fixedly arranged at the top of the support frame 11, the feeding component 3 is fixedly arranged at the upper end of the crushing component 2, the heating component 4 is fixedly arranged inside the support frame 11, the heat dissipation component 5 is fixedly arranged outside the heating component 4, and the printing component 6 is fixedly arranged at the lower end of the heating component 4;

[0035] The crushing component 2 includes a driving component 7, a fixing frame 21, a crushing roller 22, and a guide plate 23;

[0036] The fixing frame 21 is fixedly arranged at the upper end of the support frame 11. The driving component 7 is fixedly arranged on the left side of the fixing frame 21. Two groups of the crushing rollers 22 are rotatably arranged in a mirror image inside the fixing frame 21. The guide plate 23 is fixedly arranged at the lower end of the fixing frame 21. The fixing frame 21 provides a space for the activities and installation of the two groups of the crushing rollers 22, and at the same time limits their movement range, so that they can only rotate around their own axes. The guide plate 23 guides the granular materials crushed by the two groups of the crushing rollers 22 at the upper end.

[0037] The printing component 6 includes a switching print head 61, a connecting pipe 62, and a rotating block 63;

[0038] A plurality of the switching print heads 61 are movably arranged at the bottom end of the connecting pipe 62 through a plurality of the rotating blocks 63. The other end of the connecting pipe 62 is fixedly arranged at the lower end of the crushing component 2;

[0039] A plurality of the switching print heads 61 are arranged with different aperture sizes. The plurality of the rotating blocks 63 provide a space for the fixing and rotation of the plurality of the switching print heads 61, which is convenient for the staff to switch the print heads with different aperture sizes at any time during the printing process, preventing shaking and faulting during the printing process and affecting the printing accuracy and quality.

[0040] Optionally, the driving component 7 includes a driving motor 71, a rotating shaft 72, a protective shell 73, a rotating gear 74, and a transmission gear 75;

[0041] The driving motor 71 is fixedly arranged at the left end of the support frame 11 through the protective shell 73. The rotating shaft 72 is fixedly arranged on the output shaft of the driving motor 71. The rotating gear 74 is fixedly arranged at one end of the rotating shaft 72 and is rotatably arranged with the transmission gear 75. The driving motor 71 drives the two groups of the rotating shafts 72 and the rotating gears 74 to rotate. The transmission gear 75 drives the two groups of the crushing rollers 22 to rotate to crush the granular materials input from the upper end.

[0042] Optionally, the feeding component 3 includes a feeding frame 31 and a feeding funnel 32;

[0043] The feeding frame 31 is fixedly arranged at the upper end of the crushing component 2. The feeding funnel 32 is fixedly arranged at the upper end of the feeding frame 31.

[0044] Optionally, the heating component 4 includes a heating tank and a heating sheet 42;

[0045] The heating tank is fixedly arranged at the lower end of the crushing component 2. A plurality of heating sheets 42 are fixedly arranged inside the heating tank. The heating tank can protect the internal communication pipe 62 to prevent the loss of internal temperature. A plurality of heating sheets 42 can heat and melt the materials inside the communication pipe 62.

[0046] Optionally, the heat dissipation component 5 includes an outer shell 51, a heat dissipation fan 52, a duct 53, and air outlets 54.

[0047] The outer shell 51 is fixedly arranged at the lower end of the extrusion structure main body 1. The heat dissipation fan 52 is fixedly arranged inside the outer shell 51. The duct 53 is fixedly arranged at the lower end of the outer shell 51. A plurality of air outlets 54 are opened on the inner side of the duct 53. The outer shell 51 provides a space for fixing and installing the heat dissipation fan 52. The temperature at the bottom of the communication pipe 62 is cooled through the duct 53 and a plurality of air outlets 54 to prevent the device from affecting its service life due to excessive temperature.

[0048] Working principle: The three-dimensional printing extrusion structure with a high-precision nozzle has a simple structure and is easy to use. Workers can put granular materials into the upper feeding hopper 32, which then enter the lower crushing component 2. The driving motor 71 drives the rotating shaft 72 and the rotating gear 74 through the transmission gear 75, so that the two crushing rollers 22 crush the granular materials. Then, the materials enter the lower heating tank through the guide plate 23 and are heated and melted by a plurality of heating sheets 42. After that, the materials enter the lower switching print head 61 through the communication pipe 62. The heat dissipation fan 52 cools the internal temperature through the duct 53 and a plurality of air outlets 54. The setting of multiple switching print heads 61 enables workers to switch between different apertures conveniently, effectively preventing vibration and displacement caused by replacing the print head and affecting the printing accuracy and quality.

Claims

1. A three-dimensional printing extrusion structure with a high-precision nozzle, characterized in that: It comprises an extrusion structure body (1), a crushing component (2), a feeding component (3), a heating component (4), a heat dissipation component (5), and a printing component (6); The extruded structural body (1) comprises a supporting frame (11); The crushing component (2) is fixedly arranged at the top of the supporting frame (11), the feeding component (3) is fixedly arranged at the upper end of the crushing component (2), the heating component (4) is fixedly arranged inside the supporting frame (11), the heat dissipation component (5) is fixedly arranged outside the heating component (4), and the printing component (6) is fixedly arranged at the lower end of the heating component (4); The crushing component (2) comprises a driving component (7), a fixing frame (21), a crushing roller (22), and a guide plate (23); The fixed frame (21) is fixedly arranged at the upper end of the support frame (11), the driving component (7) is fixedly arranged on the left side of the fixed frame (21), the two groups of crushing rollers (22) are arranged inside the fixed frame (21) in a mirror-image manner, and the guide plate (23) is fixedly arranged at the lower end of the fixed frame (21); The printing component (6) comprises a switching printing head (61), a connecting pipe (62), and a rotating block (63); A plurality of the switching print heads (61) are movably arranged at the bottom end of the connecting tube (62) through a plurality of the rotating blocks (63), and the other end of the connecting tube (62) is fixedly arranged at the lower end of the crushing component (2); The plurality of switchable print heads (61) are arranged with different aperture sizes.

2. A three-dimensional printing extrusion structure with a high-precision nozzle as claimed in claim 1, characterized in that: The driving component (7) comprises a driving motor (71), a rotating shaft (72), a protective shell (73), rotating teeth (74), and transmission teeth (75); The driving motor (71) is fixedly arranged at the left end of the supporting frame (11) through the protective shell (73), the rotating shaft (72) is fixedly arranged on the output shaft of the driving motor (71), and the rotating tooth (74) is fixedly arranged at one end of the rotating shaft (72) and is rotatably arranged with the transmission tooth (75).

3. A three-dimensional printing extrusion structure with a high-precision nozzle as claimed in claim 1, characterized in that: The feeding component (3) comprises a feeding frame (31) and a feeding funnel (32); The feeding frame (31) is fixedly arranged on the upper end of the crushing component (2), and the feeding funnel (32) is fixedly arranged on the upper end of the feeding frame (31).

4. A three-dimensional printing extrusion structure with a high-precision nozzle as claimed in claim 1, characterized in that: The heating component (4) comprises a heating tank and a heating plate (42); The heating tank is fixedly arranged at the lower end of the crushing component (2), and a plurality of heating plates (42) are fixedly arranged inside the heating tank.

5. A three-dimensional printing extrusion structure with a high-precision nozzle as claimed in claim 1, characterized in that: The heat dissipation component (5) comprises an outer shell (51), a heat dissipation fan (52), an air guide pipe (53), and an air outlet (54); The outer shell (51) is fixedly arranged at the lower end of the extruded structure body (1), the heat dissipation fan (52) is fixedly arranged inside the outer shell (51), the air duct (53) is fixedly arranged at the lower end of the outer shell (51), and a plurality of air outlets (54) are opened on the inner side of the air duct (53).

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