Sand blasting and polishing device for printed pieces

Abstract

The utility model discloses a sand blasting and polishing device for a printing piece, and particularly relates to the technical field of 3D printing piece processing, which comprises a cylinder body and a sand blasting groove arranged on the outer wall of the cylinder body. The rotating plate is arranged at one end of the driving shaft, so that the circular ring pipe can move in the spraying groove, when the sand blasting and polishing device is used for machining the exterior of a 3D printing piece, the whole process of removing and passivating the surface of a base material is mostly influenced by rapid sand flow, compressed gas is selected as a driving force, and the effect is greatly improved. According to the equipment, a high-speed spraying beam is established to directly and quickly spray a spraying material to the surface of a workpiece to be treated through a spraying head, so that the surface or the appearance of the outer surface of the surface of the workpiece is changed, and the surface of the workpiece has certain cleanliness and different surface roughness; and left-right small-amplitude circumferential shaking spraying is carried out through the spraying head, so that spraying dead angles of spraying materials are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printed parts processing, in particular to a sandblasting and polishing device for printed parts. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis, uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. 3D printing is usually achieved using a digital technology material printer. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and then gradually used for the direct manufacturing of some products. There are already parts printed using this technology. This technology is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields. 3D printed parts are a product of 3D printing.

[0003] At present, when 3D printed parts on the market are processed and produced, sandblasting and polishing devices are needed to process the outside of the 3D printed parts. In actual use, when the sandblasting and polishing device processes the outside of the 3D printed parts, most of them will use the impact of rapid sand flow to remove and passivate the surface of the substrate. Compressed gas is used as the driving force to establish a high-speed spray beam to spray the spray material directly and quickly through the nozzle to the surface of the workpiece to be processed, so that the surface or shape of the outer surface of the workpiece surface changes. Due to the impact and cutting effect of the abrasive on the workpiece surface, the surface of the workpiece obtains a certain degree of cleanliness and different surface roughness. Most of the spray material is directly sprayed through the nozzle onto the surface of the workpiece to be processed, which makes the spray material prone to spraying dead angles, thereby reducing the efficiency of subsequent sandblasting and polishing of 3D printed parts. Utility Model Content

[0004] The purpose of the utility model is to provide a sandblasting and polishing device for printed parts to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sandblasting and polishing device for printed parts comprises a cylinder body and a sandblasting slot provided on the outer wall of the cylinder body, a slot body is provided inside the cylinder body at the top of the sandblasting slot, a driven shaft is provided inside the slot body, a gear is fixedly connected to the outer wall of the driven shaft, a fixed rod is fixedly connected inside the slot body, a rack is slidably connected to the outer wall of the fixed rod and the rack is meshed with the gear, a movable plate is fixedly connected to one end of the rack away from the fixed rod, a slide groove is provided on the outer wall of the movable plate, a slider is slidably connected inside the slide groove, a rotating plate is fixedly connected to the top of the rotating plate, a driving shaft is fixedly connected to the top of the driving shaft, the top end of the driving shaft passes through the outer wall of the cylinder body and the driving shaft is rotatably connected to the cylinder body.

[0007] Furthermore, a motor is fixedly connected to the top of the cylinder, one end of the motor output shaft is fixedly connected to the driving shaft, and the bottom end of the driven shaft passes through the inside of the sandblasting tank. The addition of the driving shaft enables the motor to drive the rotating plate to move.

[0008] Furthermore, the driven shaft is rotatably connected to the cylinder, a circular ring tube is fixedly connected to the outer wall of the driven shaft, a connecting tube is fixedly connected to the bottom end of the circular ring tube, and the addition of the rotating plate allows the slider to move inside the slide groove.

[0009] Furthermore, a hose is fixedly connected to the outer wall of the annular tube, one end of which passes through the outer wall of the cylinder and is fixedly connected to the cylinder. The addition of the movable plate allows the rack to move inside the trough.

[0010] Furthermore, a nozzle is provided at the bottom end of the connecting pipe, a connecting groove is provided at the top of the nozzle, the connecting pipe is slidably connected to the connecting groove, a threaded rod is provided on the outer wall of the nozzle, and the addition of the fixing rod limits the movement trajectory of the rack.

[0011] Furthermore, a positioning groove is provided on the outer wall of the connecting pipe, one end of the threaded rod passes through the connecting groove and the threaded rod is connected to the nozzle by a thread, one end of the threaded rod is slidingly connected to the positioning groove, and the addition of the threaded rod fixes the position of the nozzle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The sandblasting and polishing device for printed parts described in the utility model can reduce the dead angle of spraying material in the device, by arranging a rotating plate at one end of the active shaft, arranging a slider on the outer wall of the rotating plate, arranging a slide groove on the outer wall of the movable plate, arranging a rack on the outer wall of the movable plate, arranging a fixing rod inside the tank body, arranging a driven shaft inside the tank body, arranging a gear on the outer wall of the driven shaft, and arranging a circular tube on the outer wall of the driven shaft, so that the circular tube can move inside the spray tank. In the utility model, when the sandblasting and polishing device processes the outside of the 3D printed part, most of the The whole process of cleaning and passivating the surface of the substrate with the impact effect of fast sand flow uses compressed gas as the driving force to establish a high-speed spray beam to spray the material directly and quickly through the nozzle to the surface of the workpiece to be treated, so that the surface or shape of the outer surface of the workpiece surface changes. Due to the impact and cutting effect of the abrasive on the workpiece surface, the surface of the workpiece obtains a certain degree of cleanliness and different surface roughness. At the same time, the equipment allows the subsequent spray material to be sprayed out in a small circular shaking left and right through the nozzle inside the sandblasting tank, resulting in a reduction in the spraying dead angle of the spray material.

[0014] 2. The sandblasting and polishing device for printed parts described in the utility model can facilitate the replacement of the nozzle. The nozzle is arranged at the bottom end of the connecting pipe, a connecting groove is arranged at the top of the nozzle, a threaded rod is arranged on the outer wall of the nozzle, and a positioning groove is arranged on the outer wall of the connecting pipe, so that the nozzle can be easily fixed in position. In the utility model, when the device is used and the nozzle needs to be replaced, the threaded rod is rotated at this time, so that the nozzle can be easily replaced when it is blocked later. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a main cross-sectional view of the cylinder of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the circular ring tube of the utility model;

[0019] Figure 4 It is a schematic diagram of the overall structure of the rack of the utility model.

[0020] In the figure: 1. Cylinder; 2. Sandblasting tank; 3. Tank body; 4. Driven shaft; 5. Gear; 6. Fixed rod; 7. Rack; 8. Movable plate; 9. Slide; 10. Slider; 11. Turn plate; 12. Driving shaft; 13. Motor; 14. Circular tube; 15. Connecting tube; 16. Hose; 17. Nozzle; 18. Connecting groove; 19. Threaded rod; 20. Positioning groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a sandblasting and polishing device for printed parts, and the technical solution is as follows:

[0023] A sandblasting and polishing device for printed parts comprises a cylinder 1 and a sandblasting slot 2 provided on the outer wall of the cylinder 1, a slot 3 is provided inside the cylinder 1 at the top of the sandblasting slot 2, a driven shaft 4 is provided inside the slot 3, a gear 5 is fixedly connected to the outer wall of the driven shaft 4, a fixed rod 6 is fixedly connected inside the slot 3, a rack 7 is slidably connected to the outer wall of the fixed rod 6 and the rack 7 is meshed with the gear 5, a movable plate 8 is fixedly connected to the end of the rack 7 away from the fixed rod 6, a slide groove 9 is provided on the outer wall of the movable plate 8, a slider 10 is slidably connected inside the slide groove 9, a rotating plate 11 is fixedly connected to the top of the slider 10, a driving shaft 12 is fixedly connected to the top of the rotating plate 11, the top of the driving shaft 12 passes through the outer wall of the cylinder 1 and the driving shaft 12 is rotatably connected to the cylinder 1.

[0024] In a preferred embodiment, a motor 13 is fixedly connected to the top of the cylinder 1, one end of the output shaft of the motor 13 is fixedly connected to the driving shaft 12, and the bottom end of the driven shaft 4 passes through the inside of the sandblasting tank 2. When the driving shaft 12 moves, the driving shaft 12 will move inside the tank body 3, so that the driving shaft 12 can drive the rotating plate 11 to move.

[0025] In a preferred embodiment, the driven shaft 4 is rotatably connected to the cylinder 1, a circular ring tube 14 is fixedly connected to the outer wall of the driven shaft 4, and a connecting tube 15 is fixedly connected to the bottom end of the circular ring tube 14. When the rotating plate 11 moves, the rotating plate 11 can drive the slider 10 to move, so that the slider 10 moves inside the slide groove 9.

[0026] In a preferred embodiment, a hose 16 is fixedly connected to the outer wall of the annular tube 14, one end of the hose 16 passes through the outer wall of the cylinder 1 and the hose 16 is fixedly connected to the cylinder 1. When the slider 10 moves inside the slide groove 9, the slider 10 can drive the movable plate 8 to move, so that the movable plate 8 moves inside the groove body 3.

[0027] Working principle of the utility model: when the device is used to blast the workpiece, a connection channel is established between the hose 16, the compressed gas and the spray material, so that the compressed gas can drive the spray material to enter the inside of the nozzle 17 from the hose 16, the annular tube 14 and the connecting tube 15, so that the spray material can be sprayed out from the inside of the nozzle 17. At this time, the motor 13 is started, so that one end of the output shaft of the motor 13 drives the driving shaft 12 to move, so that the driving shaft 12 can drive the rotating plate 11 to move, so that the rotating plate 11 moves in a circular motion inside the groove body 3, and the rotating plate 11 drives the slider 10 to move at the same time, so that the slider 10 moves in a circular motion inside the groove body 3, and the slider 10 slides inside the slide groove 9 at the same time, so that the rotating plate 11 can drive the movable The plate 8 moves, so that the movable plate 8 slides inside the groove body 3. The movable plate 8 drives the rack 7 to move at the same time, so that the rack 7 can slide on the outer wall of the fixed rod 6. At the same time, the rack 7 will mesh with the gear 5, so that the gear 5 can rotate left and right inside the groove body 3. The gear 5 will drive the driven shaft 4 to move, so that the driven shaft 4 can rotate left and right inside the groove body 3. The driven shaft 4 can rotate left and right inside the sandblasting groove 2. The driven shaft 4 can drive the annular tube 14 to move, so that the annular tube 14 can drive the connecting tube 15 to move in a circular motion left and right inside the sandblasting groove 2, so that the subsequent spray material can be sprayed out through the nozzle 17 in the sandblasting groove 2 by shaking the circumference left and right in a small amplitude, resulting in a reduction in the spraying dead angle of the spray material.

[0028] See also Figure 1 and Figure 2 The utility model provides a technical solution: a nozzle 17 is provided at the bottom of the connecting pipe 15, a connecting groove 18 is opened at the top of the nozzle 17, the connecting pipe 15 is slidably connected to the connecting groove 18, and a threaded rod 19 is provided on the outer wall of the nozzle 17. When the movable plate 8 moves, the movable plate 8 can drive the rack 7 to move, so that the rack 7 moves on the outer wall of the fixed rod 6.

[0029] In a preferred embodiment, a positioning groove 20 is opened on the outer wall of the connecting pipe 15, one end of the threaded rod 19 passes through the connecting groove 18 and the threaded rod 19 is connected to the nozzle 17 by a thread, and one end of the threaded rod 19 is slidingly connected to the positioning groove 20. When the threaded rod 19 moves, the threaded rod 19 can move inside the nozzle 17, and at the same time, one end of the threaded rod 19 can be away from the positioning groove 20.

[0030] The working principle of the utility model is as follows: when the device is used and the nozzle 17 needs to be replaced, the threaded rod 19 is rotated so that the threaded rod 19 and the nozzle 17 move through the thread phase, so that one end of the threaded rod 19 can be slowly moved out from the inside of the positioning groove 20. When one end of the threaded rod 19 is separated from the positioning groove 20, the nozzle 17 is pulled so that one end of the connecting pipe 15 can be moved out from the inside of the connecting groove 18, so that the new nozzle 17 drives the threaded rod 19 to move, causing the bottom end of the connecting pipe 15 to enter the inside of the connecting groove 18. At this time, the threaded rod 19 is reversed so that one end of the threaded rod 19 enters the inside of the positioning groove 20, so that the nozzle 17 is blocked and replaced easily.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sandblasting and polishing device for printed parts, comprising a barrel (1) and a sandblasting groove (2) provided on the outer wall of the barrel (1), characterized in that: A slot body (3) is provided inside the cylinder (1) at the top of the sandblasting slot (2), a driven shaft (4) is provided inside the slot body (3), a gear (5) is fixedly connected to the outer wall of the driven shaft (4), a fixed rod (6) is fixedly connected to the inside of the slot body (3), a rack (7) is slidably connected to the outer wall of the fixed rod (6), and the rack (7) is meshingly connected to the gear (5), a movable plate (8) is fixedly connected to the end of the rack (7) away from the fixed rod (6), a slide groove (9) is provided on the outer wall of the movable plate (8), a slider (10) is slidably connected inside the slide groove (9), a rotating plate (11) is fixedly connected to the top of the slider (10), a driving shaft (12) is fixedly connected to the top of the rotating plate (11), the top of the driving shaft (12) passes through the outer wall of the cylinder (1), and the driving shaft (12) is rotatably connected to the cylinder (1).

2. A sandblasting and polishing device for printed parts according to claim 1, characterized in that: A motor (13) is fixedly connected to the top of the cylinder (1), one end of the output shaft of the motor (13) is fixedly connected to the driving shaft (12), and the bottom end of the driven shaft (4) passes through the interior of the sandblasting tank (2).

3. A sandblasting and polishing device for printed parts according to claim 2, characterized in that: The driven shaft (4) is rotatably connected to the cylinder (1); a circular tube (14) is fixedly connected to the outer wall of the driven shaft (4); and a connecting tube (15) is fixedly connected to the bottom end of the circular tube (14).

4. A sandblasting and polishing device for printed parts according to claim 3, characterized in that: A hose (16) is fixedly connected to the outer wall of the annular tube (14); one end of the hose (16) penetrates the outer wall of the cylinder (1) and the hose (16) is fixedly connected to the cylinder (1).

5. The sandblasting and polishing device for printed parts according to claim 3, characterized in that: A nozzle (17) is provided at the bottom end of the connecting pipe (15), a connecting groove (18) is provided at the top of the nozzle (17), the connecting pipe (15) is slidably connected to the connecting groove (18), and a threaded rod (19) is provided on the outer wall of the nozzle (17).

6. A sandblasting and polishing device for printed parts according to claim 5, characterized in that: The outer wall of the connecting pipe (15) is provided with a positioning groove (20), one end of the threaded rod (19) passes through the interior of the connecting groove (18), and the threaded rod (19) is connected to the nozzle (17) via a thread, and one end of the threaded rod (19) is slidably connected to the positioning groove (20).

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