CN220146691U - Rack construction of desktop level 3D printer - Google Patents

Abstract

The utility model discloses a rack structure of a desktop-level 3D printer, which comprises a base and is characterized in that: the double-layer portal frame is fixed on the base and comprises a double-layer transverse frame and two mutually symmetrical double-layer vertical frames, wherein two sliding arch lifting plates are arranged on the double-layer vertical frames, 2 lifting frames are fixed between the arch lifting plates and are respectively positioned on two sides of the double-layer vertical frames, a sliding fixing plate is arranged between the lifting frames, an extrusion device is fixed on the fixing plate and moves transversely in the double-layer portal frame along with the fixing plate, the lifting frames move longitudinally in the double-layer portal frame along with the lifting frames, the movement gravity center of the extrusion device can be adjusted to the inside of the frame, the movement control precision is improved, and the use abrasion of moving parts is slowed down.

Description

Rack construction of desktop level 3D printer

Technical Field

The utility model relates to the field of small 3D printing equipment, in particular to a rack structure of a desktop-level 3D printer.

Background

In a traditional 3D printer, a gantry type frame is generally used as a framework for installing and moving a printing head, the printing head moves back and forth on gantry scale through a roller mechanism or a sliding rail mechanism, and the movement of a specified speed and a specified distance is mainly completed under the constraint of a power motor and a control system.

However, when the weight of the extrusion device of the printing equipment is large or the sagging length is long, the gravity center of the structure is not at the gravity center of the cross beam, so that the unbalanced load force with a certain dumping trend exists, the double problems of inaccurate motion control precision and quick friction damage of parts can be caused, and the long-term and stable operation of the 3D printer is not facilitated, which is a problem in the prior art.

Disclosure of Invention

In order to make up the defects of the prior art, the utility model provides a rack structure of a desktop-level 3D printer, wherein a double-layer portal frame is adopted to adjust the movement gravity center of an extrusion device to the inside of a rack, thereby improving the precision of movement control, and slowing down the use abrasion of moving parts so as to improve the problems in the prior art.

The utility model is realized by the following technical scheme:

the utility model provides a frame construction of desktop level 3D printer, includes the base, be fixed with double-deck portal frame on the base, double-deck portal frame includes double-deck crossbearer and two mutual symmetries's double-deck grudging post, two all be equipped with slidable bow-type lifting board on the double-deck grudging post, two be fixed with 2 lifting frames between the bow-type lifting board, the lifting frame is located respectively the both sides of double-deck grudging post, 2 be equipped with slidable fixed plate between the lifting frame, be fixed with extrusion device on the fixed plate, extrusion device follows the fixed plate is at double-deck portal frame internal transverse displacement, follows the lifting frame is at double-deck portal frame internal longitudinal displacement.

Further preferably, the arch-shaped lifting plate is provided with a groove, and the frame body of the double-layer vertical frame is positioned in the groove of the arch-shaped lifting plate.

Further preferably, through holes are formed in the middle positions of the two arch-shaped lifting plates, and screw nuts are arranged on the through holes.

Further preferably, a motor is fixed on the base below the screw nut, a screw is fixed on an output shaft of the motor, the screw penetrates through the screw nut, the upper end of the screw is rotatably connected with a bearing seat, and the bearing seat is fixed on the double-layer vertical frame.

Further preferably, sliding rails are arranged on the outer sides of the double-layer vertical frames, adapter blocks are fixed at two ends of the arch-shaped lifting plates, sliding blocks are fixed on the inner sides of the adapter blocks, and the outer sides of the adapter blocks are fixed with the lifting frames.

Further preferably, a sliding groove is formed in the sliding block, and the sliding groove is matched with the sliding rail.

Further preferably, the second slide rails are fixed above the 2 lifting frames, the second slide blocks are fixed at the bottoms of the two ends of the fixing plate, second slide grooves are formed in the bottoms of the second slide blocks, and the second slide grooves are matched with the second slide rails.

Further preferably, a second motor is fixed at the bottom of one of the arch-shaped lifting plates, an output shaft of the second motor penetrates through the arch-shaped lifting plate, a roller is arranged at the upper end of the output shaft, an auxiliary wheel is arranged on the other arch-shaped lifting plate, a synchronous belt is arranged between the roller and the auxiliary wheel, and the synchronous belt is fixed with the extrusion device.

The beneficial effects of the utility model are as follows:

1. the utility model adopts the double-layer portal frame to adjust the movement gravity center of the extrusion device to the inside of the frame, eliminates unbalanced load force, improves the precision of movement control and slows down the use abrasion of the movement assembly.

2. The whole of double-deck portal frame is firm, and rigidity intensity is high, when installing the great granule extrusion subassembly of weight, can provide more stable operational environment. Adopt linear guide rail on the double-deck portal frame, frictional resistance is low, when the granule extrusion assembly that the installation quality is big, can more quick control of acceleration and deceleration motion, further improve motion control precision, eliminate the vibration line defect on the 3D printing product.

Drawings

Fig. 1 and fig. 2 are schematic perspective views of different angles of the present utility model.

Fig. 3 is a schematic perspective view of the present utility model with a part of the structure broken away.

Fig. 4 is a schematic perspective view of an arcuate lifting plate of the present utility model.

In the figure: 1. a base; 2. a double-layer cross frame; 3. a double-layer vertical frame; 31. a slide rail; 32. a motor; 33. a screw rod; 34. a bearing seat; 4. an arcuate lifting plate; 41. a lead screw nut; 42. a transfer block; 43. a slide block; 44. an auxiliary wheel; 45. a second motor; 46. a roller; 47. a groove; 5. lifting the frame; 51. a second slide rail; 6. a fixing plate; 61. a second slider; 7. an extrusion device.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "left", "right", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1-4, the utility model provides a rack structure of a desktop-level 3D printer, which comprises a base 1, wherein a double-layer portal frame is fixed on the base, the double-layer portal frame comprises a double-layer transverse frame 2 and two double-layer vertical frames 3 which are symmetrical to each other, two double-layer vertical frames 3 are respectively provided with a slidable bow-shaped lifting plate 4, 2 lifting frames 5 are fixed between the two bow-shaped lifting plates 4, the 2 lifting frames are respectively positioned at two sides of the double-layer vertical frames 3, a slidable fixing plate 6 is arranged between the 2 lifting frames 5, an extrusion device 7 is fixed on the fixing plate, and the extrusion device can transversely move left and right in the double-layer portal frame along with the fixing plate 6 and longitudinally move up and down in the double-layer portal frame along with the lifting frames. The gravity center of the motion of the extrusion device is adjusted to the inside of the frame, unbalanced load force is eliminated, the precision of motion control is improved, and the use abrasion of a motion assembly is slowed down.

As a preferred embodiment, the arched lifting plate 4 is provided with a groove 47, and the frame body of the double-layer vertical frame 3 is positioned in the groove 47 of the arched lifting plate. The middle positions of the two bow-shaped lifting plates 4 are respectively provided with a through hole, a screw nut 41 is fixed on the through holes, a motor 32 is fixed on the base 1 below the screw nut, a screw 33 is fixed on an output shaft of the motor through a coupler, the screw passes through the screw nut 41, the upper end of the screw is rotationally connected with a bearing seat 34, and the bearing seat is fixed on the double-layer vertical frame 3. The outside of double-deck grudging post 3 all is equipped with slide rail 31, the both ends of bow-shaped lifting board 4 all are fixed with adapter piece 42, and adapter piece's inboard is fixed with slider 43, has seted up the spout on the slider, the spout with slide rail 31 looks adaptation, adapter piece 42 the outside with lifting frame 5 is fixed mutually, and motor 32 drives lead screw 33 and rotates, and the vertical displacement about double-deck portal frame can be followed to bow-shaped lifting board 4 and lifting frame 5.

As a preferred embodiment, the second slide rails 51 are fixed above the 2 lifting frames 5, the bottoms of the two ends of the fixing plate 6 are respectively fixed with a second slide block 61, the bottoms of the second slide blocks are provided with second slide grooves, and the second slide grooves are matched with the second slide rails 61. The bottom of one of the bow-shaped lifting plates 4 is fixed with a second motor 45, an output shaft of the second motor penetrates through the bow-shaped lifting plate 4, a roller 46 is arranged at the upper end of the output shaft, an auxiliary wheel 44 is arranged on the other bow-shaped lifting plate, a synchronous belt is arranged between the roller 46 and the auxiliary wheel 44, and the synchronous belt is fixed relative to the extrusion device 7. The second motor rotates, and drives the extrusion device 7 and the fixed plate 6 to transversely move left and right on the second sliding rail 31 through the synchronous belt.

The longitudinal displacement and the transverse displacement of the extrusion device on the double-layer portal frame are realized, the whole of the double-layer portal frame is firm, the rigidity strength is high, and a more stable running environment can be provided when the particle extrusion assembly with larger weight is arranged. In addition, the guide rail and the second guide rail adopt linear guide rails, so that the friction resistance is low, acceleration and deceleration motion control can be more rapidly performed when the particle extrusion assembly with large installation mass is installed, the motion control precision is further improved, and the vibration grain defect on the 3D printing product is eliminated.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (8)

1. The utility model provides a frame structure of desktop level 3D printer, includes base (1), its characterized in that: be fixed with double-deck portal frame on the base, double-deck portal frame includes double-deck crossbearer (2) and two mutual symmetrical double-deck grudging post (3), two all be equipped with slidable bow type lifting board (4) on the double-deck grudging post, two be fixed with 2 lifting frame (5) between the bow type lifting board, the lifting frame is located respectively double-deck grudging post (3) both sides, 2 be equipped with slidable fixed plate (6) between lifting frame (5), be fixed with extrusion device (7) on the fixed plate, extrusion device follows fixed plate (6) lateral displacement in double-deck portal frame is followed lifting frame (5) longitudinal displacement in double-deck portal frame.

2. The frame structure of a desktop level 3D printer of claim 1, wherein: the arch-shaped lifting plate (4) is provided with a groove, and the frame body of the double-layer vertical frame (3) is positioned in the groove of the arch-shaped lifting plate (4).

3. The frame structure of a desktop level 3D printer of claim 1, wherein: through holes are formed in the middle positions of the two arch-shaped lifting plates (4), and screw nuts (41) are arranged on the through holes.

4. A frame structure for a desktop level 3D printer according to claim 3, wherein: the motor (32) is fixed on the base below the screw nut (41), the screw (33) is fixed on the output shaft of the motor, the screw penetrates through the screw nut (41) and the upper end of the screw is rotationally connected with the bearing seat (34), and the bearing seat is fixed on the double-layer vertical frame (3).

5. The frame structure of a desktop level 3D printer of claim 1, wherein: the double-layer vertical frame is characterized in that sliding rails (31) are arranged on the outer sides of the double-layer vertical frames (3), adapter blocks (42) are fixed at the two ends of the arch-shaped lifting plates (4), sliding blocks (43) are fixed on the inner sides of the adapter blocks, and the outer sides of the adapter blocks are fixed with the lifting frames (5).

6. The frame structure of a desktop level 3D printer of claim 5, wherein: a sliding groove is formed in the sliding block (43), and the sliding groove is matched with the sliding rail (31).

7. The frame structure of a desktop level 3D printer of claim 1, wherein: the 2 lifting frames (5) are fixedly arranged above the lifting frames, second sliding rails (51) are fixedly arranged at the bottoms of two ends of the fixing plate, second sliding blocks (61) are fixedly arranged at the bottoms of the two ends of the fixing plate, second sliding grooves are formed in the bottoms of the second sliding blocks, and the second sliding grooves are matched with the second sliding rails (51).

8. The frame structure of a desktop level 3D printer of claim 1, wherein: one of them the bottom of bow-type lifting plate (4) is fixed with second motor (45), the output shaft of second motor passes bow-type lifting plate and output shaft upper end is equipped with gyro wheel (46), is equipped with auxiliary wheel (44) on another bow-type lifting plate (4), be equipped with the hold-in range between gyro wheel and the auxiliary wheel, the hold-in range with extrusion device (7) are fixed mutually.