CN211843225U - Double-screw 3D printer - Google Patents

Abstract

The utility model discloses a two lead screw 3D printers, the power distribution box comprises a box body, the inside both sides of box are located and install the lead screw between saddle and the bottom plate, and the top that the top of lead screw is located the saddle is connected with the motor, and the optical axis is all installed to the both sides of lead screw, and supporting beam has been cup jointed to the lower part of lead screw and optical axis, and supporting beam's both sides correspond optical axis mounted position department and are provided with the setting element, and supporting beam's middle part corresponds lead screw mounted position department and is provided with screw-nut, and print platform is installed to supporting. The utility model discloses two lead screw structures can make 3D printer print platform go up and down steadily, reduce the vibrations of lift in-process, and the atress is shared equally, has eliminated print platform because the atress inequality and the deformation that produces at the lift in-process, has improved printing precision and quality, utilizes four optical axes to make the stability of machine promote widely, and this structure has also protected lead screw and optical axis guide rail simultaneously, increases its life.

Description

Double-screw 3D printer

Technical Field

The utility model relates to a 3D printer technical field specifically is a two lead screw 3D printers.

Background

3D printing is one of the rapid prototyping technologies, which is to manufacture a three-dimensional object by using materials such as special wax materials, powdered metals or plastics and the like and by using a layer-by-layer printing mode on the basis of a digital model file. The 3D printing technology is characterized in that a computer three-dimensional design model is used as a blueprint, special materials such as metal powder, ceramic powder, plastics, cell tissues and the like are stacked layer by layer and bonded through a software layering dispersion and numerical control forming system in a laser beam and hot melting nozzle mode, and finally, an entity product is manufactured through superposition forming.

The 3D printer that currently markets adopted is that the monofilament pole controls print platform's lift action, when carrying out the lift action then, because print platform's weight crescent, print platform easily produces the deformation because of the atress is uneven, and the platform up-and-down motion is unstable simultaneously, is accompanied and rocks, influences the printing precision. The moment born by the guide rail is greatly increased, which has a bad influence on the service life of the transmission part for a long time, and accelerates the abrasion of the transmission part and the printing platform, thereby causing unnecessary consumption.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a two lead screw 3D printers, the effectual lift action of solving monofilament pole control print platform, print platform easily produces the deformation because of the atress is uneven, because print platform's weight crescent, the moment that the guide rail bore also can increase substantially, long-term the life-span of coming to the transmission produces bad influence, transmission medium and print platform's wearing and tearing with higher speed to cause the problem that unnecessary consumes.

In order to achieve the above object, the utility model provides a following technical scheme: the automatic printing box comprises a box body, wherein a front door is arranged on the front side of the box body, a switch is arranged above the front door, a side door is arranged on the side wall of the box body, an air guide groove is formed below the side door, a top cover door is arranged at the top of the box body, a bottom plate is arranged at the bottom of the box body, a tray is arranged at the upper part of the inner side of the box body, a screw rod is arranged between the tray and the bottom plate on two sides inside the box body, the screw rod is fixedly connected with the bottom plate through a screw rod supporting seat, a motor is connected above the tray on the top end of the screw rod, optical axes are arranged on two sides of the screw rod, the optical axes are connected with the bottom plate through an optical axis fixing seat, a supporting cross beam is sleeved on the lower parts of the screw rod and the optical axes, positioning parts are, the output end of the switch is electrically connected with the input end of the motor.

Preferably, the outer side of the air guide groove is covered with a dustproof net, the dustproof net is connected with the box body through screws, and the number of the screws is four.

Preferably, the surface of the printing platform is provided with a fixing hole, and the printing platform is connected with the supporting beam through a bolt and the fixing hole.

Preferably, the connection part of the motor and the support table is provided with a damping plate, and the thickness of the damping plate is 5 mm.

Preferably, the front door, the top cover door and the box body are connected through hinges, and handles are arranged on the surfaces of the front door and the top cover door.

Preferably, the number of the screw rods is two, and the number of the optical axes is four.

The utility model discloses the 3D printer print platform both sides use the double screw pole, four optical axes realize print platform's lift action, the double screw pole structure can make 3D printer print platform go up and down steadily, reduce the vibrations of lift in-process, the atress is shared equally, eliminated print platform because the atress produces in the lift in-process warp by a wide margin, printing precision and quality have been improved, utilize four optical axes to make the stability of machine promote widely, lead screw and optical axis guide rail have also been protected simultaneously to this structure, increase its life.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a sectional view of the present invention.

Fig. 3 is a schematic view of the screw rod mounting structure of the present invention.

Fig. 4 is a left side view of the present invention.

Reference numbers in the figures: 1. a box body; 2. a front door; 3. a switch; 4. a side door; 5. a wind guide groove; 6. a dust screen; 7. a screw; 8. a top cover door; 9. a base plate; 10. a saddle; 11. a screw rod; 12. a lead screw supporting seat; 13. a motor; 14. an optical axis; 15. an optical axis fixing seat; 16. a support beam; 17. a printing platform; 18. a fixing hole; 19. a bolt; 20. a positioning member; 21. and a screw nut.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-4.

In the first embodiment, as shown in fig. 1, 2, 3 and 4, the utility model comprises a box body 1, a front door 2 is arranged on the front side of the box body 1, a switch 3 is arranged above the front door 2, a side wall of the box body 1 is provided with a side door 4, an air guide groove 5 is arranged below the side door 4, a top cover door 8 is arranged on the top of the box body 1, a bottom plate 9 is arranged at the bottom of the box body 1, a pallet 10 is arranged on the upper portion of the inner side of the box body 1, a screw rod 11 is arranged between the pallet 10 and the bottom plate 9 on two sides of the interior of the box body 1, the screw rod 11 and the bottom plate 9 are fixedly connected through a screw rod supporting seat 12, a motor 13 is connected on the top end of the screw rod 11 above the pallet 10, optical axes 14 are respectively arranged on two sides of the screw rod 11, the optical axes 14 are connected with the bottom plate 9 through optical axis fixing seats 15, a supporting, a screw nut 21 is arranged at the middle part of the supporting beam 16 corresponding to the installation position of the screw 11, a printing platform 17 is arranged above the supporting beam 16, the input end of the switch 3 is electrically connected with commercial power, the output end of the switch 3 is electrically connected with the input end of the motor 13, firstly, the printing platform 17 is connected with the supporting beam 16 through a bolt 19 and a fixing hole 18, after the two are fixed, linear guide rails are fixed at the two ends of the supporting beam 16, four optical shafts 14 are used as guide rails in the structure, the two ends are fixed on the bottom plate 9 and the saddle 10 through optical shaft fixing seats 15, the middle part is fixed with the supporting beam 16 through a positioning piece 20, next, the two screw rods 11 are fixed with the bottom plate 9 through screw rod supporting seats 12, the middle part of the screw rods 11 is locked on the supporting beam 16 through the screw nut 21, the switch 3 is connected with, the screw rod nut 21 moves on the screw rod 11, so that the supporting beam 16 and the printing platform 17 are driven to lift on the optical axis 14, the 3D printer printing platform 17 can lift stably due to the double-screw rod 11 structure, vibration in the lifting process is reduced, stress is evenly distributed, large-amplitude deformation of the printing platform 17 due to stress in the lifting process is eliminated, printing precision and quality are improved, stability of the machine is greatly improved by the aid of the four optical axes 14, the screw rod 11 and the optical axis 14 guide rail are simultaneously protected by the structure, and the service life of the machine is prolonged.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 1, 2 and 3, the dust-proof net 6 covers the outer side of the air guide groove 5, the dust-proof net 6 is connected with the box body 1 through screws 7, and the number of the screws 7 is four, so that dust is prevented from entering the box body 1 through the air guide groove 5 to affect use, and the dust-proof net 6 is convenient to disassemble and clean.

In the third embodiment, on the basis of the first embodiment, as shown in fig. 2 and 3, fixing holes 18 are formed in the surface of the printing platform 17, and the printing platform 17 and the supporting beam 16 are connected through bolts 19 and the fixing holes 18, so that the printing platform 17 and the supporting beam 16 can be conveniently mounted and dismounted, and the two are ensured to be on the same horizontal plane.

In the fourth embodiment, on the basis of the first embodiment, as shown in fig. 3 and 4, a damping plate is disposed at a connection position between the motor 13 and the pallet 10, and the thickness of the damping plate is 5mm, so that vibration generated by operation of the motor 13 is reduced, and influence on printing effect is avoided.

In the fifth embodiment, based on the first embodiment, as shown in fig. 1, the front door 2 and the top cover door 8 are connected to the box body 1 through hinges, and the front door 2 and the top cover door 8 are provided with handles on their surfaces, so that the front door 2 and the top cover door 8 can be opened and closed conveniently, and the stability during printing can be ensured.

Sixth embodiment, on the basis of the first embodiment, as shown in fig. 2 and 3, the number of the lead screws 11 is two, the number of the optical axes 14 is four, the stability of the machine is greatly improved by using the four optical axes 14, the deformation of the printing platform 17 is reduced in the lifting process due to the double lead screw 11 structures at the two ends, the stress is uniform, the lead screws 11 and the optical axis 14 guide rails are protected, and the service life of the printing platform is prolonged.

The working principle is as follows: when the utility model is used, firstly, the printing platform 17 is connected with the supporting beam 16 through the bolt 19 and the fixing hole 18, after the two are fixed, the two ends of the supporting beam 16 are fixed with the linear guide rails, the four optical shafts 14 are used as the guide rail function in the structure, the two ends are fixed on the bottom plate 9 and the saddle 10 through the optical shaft fixing seats 15, the middle part is fixed with the supporting beam 16 through the positioning piece 20, next, the two lead screws 11 are fixed with the bottom plate 9 through the lead screw supporting seats 12, the middle part of the lead screws 11 is locked on the supporting beam 16 through the lead screw nuts 21, the switch 3 is connected with the upper commercial power, the motor 13 above the lead screws 11 is controlled to operate, the two lead screws 11 are driven to rotate, the lead screw nuts 21 move on the lead screws 11, thereby driving the supporting beam 16 and the printing platform 17 to do the lifting action on the optical, the vibration in the lifting process is reduced, the stress is evenly distributed, the large-amplitude deformation of the printing platform 17 caused by the stress in the lifting process is eliminated, the printing precision and the printing quality are improved, the stability of the machine is greatly improved by utilizing the four optical axes 14, the lead screw 11 and the optical axis 14 guide rail are protected by the structure, and the service life of the lead screw is prolonged.

Compared with the prior art, the utility model has the following benefits: the two-screw 11 is used to 3D printer print platform 17 both sides, four optical axis 14 realize print platform 17's lift action, two-screw 11 structure can make 3D printer print platform 17 go up and down steadily, reduce the vibrations of lift in-process, the atress is shared equally, print platform 17 has been eliminated because the atress produces in the lift in-process warp by a wide margin, printing precision and quality have been improved, utilize four optical axis 14 to make the stability of machine promote widely, this structure has also protected lead screw 11 and optical axis 14 guide rail simultaneously, increase its life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a two lead screw 3D printers, includes box (1), its characterized in that: a front door (2) is arranged on the front side of the box body (1), a switch (3) is arranged above the front door (2), a side door (4) is arranged on the side wall of the box body (1), an air guide groove (5) is formed below the side door (4), a top cover door (8) is arranged at the top of the box body (1), a bottom plate (9) is arranged at the bottom of the box body (1), a supporting platform (10) is arranged at the upper part of the inner side of the box body (1), a lead screw (11) is arranged between the supporting platform (10) and the bottom plate (9) on two sides of the inner part of the box body (1), the lead screw (11) is fixedly connected with the bottom plate (9) through a lead screw supporting seat (12), a motor (13) is connected to the top of the lead screw (11) above the supporting platform (10), optical axes (14) are arranged on two sides of the lead screw (11), the optical axes (14) are connected with the bottom plate (9) through, locating pieces (20) are arranged on the two sides of the supporting cross beam (16) corresponding to the installation position of the optical axis (14), lead screw nuts (21) are arranged on the middle of the supporting cross beam (16) corresponding to the installation position of the lead screw (11), a printing platform (17) is installed above the supporting cross beam (16), the input end of the switch (3) is electrically connected with a mains supply, and the output end of the switch (3) is electrically connected with the input end of the motor (13).

2. The dual screw 3D printer of claim 1, wherein: the outer side of the air guide groove (5) is covered with a dust screen (6), the dust screen (6) is connected with the box body (1) through screws (7), and the number of the screws (7) is four.

3. The dual screw 3D printer of claim 1, wherein: the surface of the printing platform (17) is provided with a fixing hole (18), and the printing platform (17) is connected with the supporting beam (16) through a bolt (19) and the fixing hole (18).

4. The dual screw 3D printer of claim 1, wherein: and a damping plate is arranged at the joint of the motor (13) and the supporting platform (10), and the thickness of the damping plate is 5 mm.

5. The dual screw 3D printer of claim 1, wherein: the front door (2) and the top cover door (8) are connected with the box body (1) through hinges, and handles are arranged on the surfaces of the front door (2) and the top cover door (8).

6. The dual screw 3D printer of claim 1, wherein: the number of the screw rods (11) is two, and the number of the optical axes (14) is four.

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