SLM type 3D printer powder spreading equipment with anti-jamming function

Abstract

The invention provides SLM type 3D printer powder laying equipment with an anti-jamming function, and relates to the technical field of additive manufacturing, the SLM type 3D printer powder laying equipment comprises a sliding rail, the front face of the sliding rail is movably connected with a sliding seat, the front face of the sliding seat is fixedly connected with a shell, a first powder inlet hole is formed in the top of the shell, and a scraper is arranged at the bottom of the shell; according to the SLM type 3D printer powder laying equipment with the anti-locking function, when powder falls onto a baffle, vibration of a spring is intensified, the powder fully falls into a second powder inlet hole, a sliding base moves on a sliding rail, the vibration of the spring is intensified, the powder is scattered through the baffle, the powder fully falls into the second powder inlet hole, and the powder laying efficiency is improved. And through the arranged anti-locking assembly, a push rod does left-right reciprocating motion, powder of a second powder inlet hole is scattered, in the moving process of the push rod, the push rod and the powder act on each other, the push rod rotates on the outer wall of a clamping block, and scattering of the powder by the push rod is further intensified.

Description

Technical Field

[0001] The present invention relates to the technical field of additive manufacturing, and in particular to a powder spreading device for an SLM type 3D printer with an anti-jamming function. 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 digital technology material printers. 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 has applications in jewelry, footwear, industrial design, architecture, engineering and construction, automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields.

[0003] In the process of using SLM type 3D printers, it is often inevitable to use powder spreading equipment. However, the SLM type 3D printer powder spreading equipment currently used in the market may cause the equipment to get stuck due to excessive powder in the equipment, which requires the staff to repair the equipment, causing inconvenience to the staff and reducing the practicality of the SLM type 3D printer powder spreading equipment. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a SLM type 3D printer powder spreading device with an anti-jamming function to solve all or one of the problems mentioned in the above background technology.

[0005] Based on the above purpose, the present invention provides an SLM type 3D printer powder spreading device with an anti-jamming function, comprising a slide rail, a slide seat is movably connected to the front of the slide rail, a shell is fixedly connected to the front of the slide seat, a first powder inlet hole is opened on the top of the shell, a scraper is arranged at the bottom of the shell, a spring is fixedly connected to the inside of the shell, one end of the spring is fixedly connected to a baffle, a first base is arranged inside the shell, a connecting shaft is fixedly connected to the top of the first base, a second powder inlet hole is opened inside the shell, a placement groove is opened inside the second powder inlet, an anti-jamming component is arranged on the inner wall of the placement groove, a second base is fixedly connected to the back of the shell, a motor is fixedly connected to the top of the second base, the output shaft of the motor is fixedly connected to a rotating shaft through a coupling, one end of the rotating shaft is fixedly connected to a second connecting cylinder, one end of the second connecting cylinder is fixedly connected to a screen, a second connecting rod is fixedly connected to the inner wall of the shell, a stirring rod is fixedly connected to the outer wall of the second connecting rod, and a discharge hole is opened at the bottom of the shell.

[0006] Optionally, a sealing strip is provided between the baffle and the shell, and the sealing strip is an elastic sealing strip.

[0007] Optionally, a connecting ring is movably connected to the outer wall of the connecting shaft, and the outer wall of the connecting ring is fixedly connected to one side of the baffle.

[0008] Optionally, the anti-stuck component includes a pneumatic cylinder arranged inside the placement groove, the output end of the pneumatic cylinder is fixedly connected to a first connecting tube, one side of the first connecting tube is fixedly connected to a first connecting rod, one end of the first connecting rod is fixedly connected to a clamping block, the outer wall of the clamping block is fixedly connected to a push rod, and the push rod is movably connected to the first connecting rod through the clamping block.

[0009] Optionally, the screen is arranged below the second powder inlet hole.

[0010] Optionally, the inner wall of the outer shell is fixedly connected to a limiting cylinder, and the inner wall of the limiting cylinder is movably connected to the outer wall of the second connecting cylinder.

[0011] Optionally, one end of the second connecting rod away from the shell passes through the inner wall of the second connecting tube and extends to the inner wall of the shell, and the outer wall of the second connecting rod is movably connected to the inner wall of the rotating shaft.

[0012] Optionally, the discharge hole is arranged below the screen.

[0013] Optionally, there are two scrapers, and the two scrapers are symmetrically arranged with the vertical midline of the shell as the symmetry axis.

[0014] From the above description, it can be seen that the SLM type 3D printer powder spreading device with anti-jamming function provided by the present invention has the following beneficial effects:

[0015] The SLM type 3D printer powder spreading device with anti-jamming function uses the provided spring and baffle plate to make the spring intensify vibration when the powder falls on the baffle plate, so that the powder fully falls into the second powder inlet hole, and the sliding seat moves on the slide rail to intensify the vibration of the spring, and the baffle plate is used to scatter the powder, so that the powder fully falls into the second powder inlet hole. The anti-jamming component is used to make the push rod reciprocate left and right to scatter the powder in the second powder inlet hole, and during the movement of the push rod, the push rod and the powder act on each other, so that the push rod rotates on the outer wall of the block, further intensifying the scattering of the powder by the push rod, and the motor and screen are used to rotate the screen, so that the relative position of the screen and the stirring rod is changed, so that the stirring rod scatters the powder in the screen and the powder falls from under the screen, and the scraper is used to flatten the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the connection structure between the housing and the second base of the present invention;

[0019] Figure 3 For the present invention Figure 1 A magnified view of the structure at center;

[0020] Figure 4 It is a schematic diagram of the structure of the anti-stuck component of the present invention.

[0021] Among them, 1. slide rail; 2. slide seat; 3. shell; 4. first powder inlet; 5. scraper; 6. spring; 7. baffle; 8. sealing strip; 9. first base; 10. connecting shaft; 11. connecting ring; 12. second powder inlet; 13. placement groove; 14. anti-jamming component; 141. pneumatic cylinder; 142. first connecting tube; 143. first connecting rod; 144. block; 145. push rod; 15. second base; 16. motor; 17. rotating shaft; 18. second connecting tube; 19. screen; 20. limiting tube; 21. second connecting rod; 22. stirring rod; 23. discharge hole. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] As a preferred embodiment of the present invention, the present invention proposes an SLM type 3D printer powder spreading device with an anti-jamming function, comprising a slide rail, a slide seat is movably connected to the front of the slide rail, a shell is fixedly connected to the front of the slide seat, a first powder inlet hole is opened on the top of the shell, a scraper is arranged at the bottom of the shell, a spring is fixedly connected to the inside of the shell, one end of the spring is fixedly connected to a baffle, a first base is arranged inside the shell, a connecting shaft is fixedly connected to the top of the first base, a second powder inlet hole is opened inside the shell, a placement groove is opened inside the second powder inlet, an anti-jamming component is arranged on the inner wall of the placement groove, a second base is fixedly connected to the back of the shell, a motor is fixedly connected to the top of the second base, the output shaft of the motor is fixedly connected to a rotating shaft through a coupling, one end of the rotating shaft is fixedly connected to a second connecting cylinder, one end of the second connecting cylinder is fixedly connected to a screen, a second connecting rod is fixedly connected to the inner wall of the shell, a stirring rod is fixedly connected to the outer wall of the second connecting rod, and a discharge hole is opened at the bottom of the shell.

[0025] The design of the present invention, through the provision of a spring and a baffle, when the powder falls onto the baffle, the spring intensifies vibration, so that the powder fully falls into the second powder inlet hole, the slide seat moves on the slide rail, intensifies the vibration of the spring, breaks up the powder through the baffle, and makes the powder fully fall into the second powder inlet hole, through the provision of an anti-jamming component, the push rod makes a left and right reciprocating motion, breaks up the powder in the second powder inlet hole, and during the movement of the push rod, the push rod and the powder act on each other, so that the push rod rotates on the outer wall of the block, further intensifies the breaking up of the powder by the push rod, the screen is rotated by the provision of a motor and a screen, thereby changing the relative position of the screen and the stirring rod, so that the stirring rod breaks up the powder in the screen and makes the powder fall from under the screen, and the provision of a scraper makes the scraper flatten the powder.

[0026] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0027] See also Figure 1-4 The SLM type 3D printer powder spreading device with anti-jamming function comprises a slide rail 1, a slide seat 2 is movably connected to the front of the slide rail 1, a shell 3 is fixedly connected to the front of the slide seat 2, a first powder inlet hole 4 is provided on the top of the shell 3, a scraper 5 is provided at the bottom of the shell 3, a spring 6 is fixedly connected to the inside of the shell 3, a baffle 7 is fixedly connected to one end of the spring 6, a first base 9 is provided inside the shell 3, a connecting shaft 10 is fixedly connected to the top of the first base 9, a second powder inlet hole 12 is provided inside the shell 3, and a second powder inlet hole 12 is provided inside There is a placement groove 13, the inner wall of the placement groove 13 is provided with an anti-stuck component 14, the back of the shell 3 is fixedly connected to the second base 15, the top of the second base 15 is fixedly connected to the motor 16, the output shaft of the motor 16 is fixedly connected to the rotating shaft 17 through a coupling, one end of the rotating shaft 17 is fixedly connected to the second connecting cylinder 18, one end of the second connecting cylinder 18 is fixedly connected to the screen 19, the inner wall of the shell 3 is fixedly connected to the second connecting rod 21, the outer wall of the second connecting rod 21 is fixedly connected to the stirring rod 22, and the bottom of the shell 3 is provided with a discharge hole 23.

[0028] A sealing strip 8 is provided between the baffle 7 and the housing 3 , and the sealing strip 8 is an elastic sealing strip.

[0029] A connecting ring 11 is movably connected to the outer wall of the connecting shaft 10 , and the outer wall of the connecting ring 11 is fixedly connected to one side of the baffle 7 .

[0030] The anti-stuck component 14 includes a pneumatic cylinder 141 arranged inside the placement groove 13, the output end of the pneumatic cylinder 141 is fixedly connected to the first connecting tube 142, one side of the first connecting tube 142 is fixedly connected to the first connecting rod 143, one end of the first connecting rod 143 is fixedly connected to the block 144, the outer wall of the block 144 is fixedly connected to the push rod 145, and the push rod 145 is movably connected to the first connecting rod 143 through the block 144.

[0031] The screen 19 is arranged below the second powder inlet 12 .

[0032] The inner wall of the housing 3 is fixedly connected to the limiting cylinder 20 , and the inner wall of the limiting cylinder 20 is movably connected to the outer wall of the second connecting cylinder 18 .

[0033] One end of the second connecting rod 21 away from the housing 3 passes through the inner wall of the second connecting tube 18 and extends to the inner wall of the housing 3 , and the outer wall of the second connecting rod 21 is movably connected to the inner wall of the rotating shaft 17 .

[0034] The discharge hole 23 is arranged below the screen 19 .

[0035] There are two scrapers 5 , and the two scrapers 5 are symmetrically arranged with the vertical center line of the housing 3 as the symmetry axis.

[0036] When in use, the powder falls onto the baffle 7, and the spring 6 intensifies the vibration, so that the powder fully falls into the second powder inlet hole 12. The slide seat 2 moves on the slide rail 1, intensifying the vibration of the spring 6, breaking up the powder through the baffle 7, and making the powder fully fall into the second powder inlet hole 12. The push rod 145 reciprocates left and right to break up the powder in the second powder inlet hole 12, and during the movement of the push rod 145, the push rod 145 and the powder act on each other, so that the push rod 145 rotates on the outer wall of the block 144, further intensifying the breaking up of the powder by the push rod 145, and the motor 16 runs to make the screen 19 rotate, and the relative position of the screen 19 and the stirring rod 22 changes, so that the stirring rod 22 breaks up the powder in the screen 19 and makes the powder fall from under the screen 19, and the scraper 5 scrapes the falling powder flat.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present invention, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0038] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A powder spreading device for an SLM type 3D printer with an anti-jamming function, comprising a slide rail (1), characterized in that: The front side of the slide rail (1) is movably connected to a slide seat (2), the front side of the slide seat (2) is fixedly connected to a shell (3), the top of the shell (3) is provided with a first powder inlet hole (4), the bottom of the shell (3) is provided with a scraper (5), the inside of the shell (3) is fixedly connected to a spring (6), one end of the spring (6) is fixedly connected to a baffle (7), the inside of the shell (3) is provided with a first base (9), the top of the first base (9) is fixedly connected to a connecting shaft (10), the inside of the shell (3) is provided with a second powder inlet hole (12), the inside of the second powder inlet hole (12) is provided with a placement groove (13), the placement groove The inner wall of the outer shell (13) is provided with an anti-jamming component (14), the back side of the outer shell (3) is fixedly connected to a second base (15), the top of the second base (15) is fixedly connected to a motor (16), the output shaft of the motor (16) is fixedly connected to a rotating shaft (17) through a coupling, one end of the rotating shaft (17) is fixedly connected to a second connecting cylinder (18), one end of the second connecting cylinder (18) is fixedly connected to a screen (19), the inner wall of the outer shell (3) is fixedly connected to a second connecting rod (21), the outer wall of the second connecting rod (21) is fixedly connected to a stirring rod (22), and a discharge hole (23) is provided at the bottom of the outer shell (3).

2. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: A sealing strip (8) is provided between the baffle (7) and the outer shell (3), and the sealing strip (8) is an elastic sealing strip.

3. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: The outer wall of the connecting shaft (10) is movably connected to a connecting ring (11), and the outer wall of the connecting ring (11) is fixedly connected to one side of the baffle (7).

4. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: The anti-jamming component (14) comprises a pneumatic cylinder (141) arranged inside the placement groove (13); the output end of the pneumatic cylinder (141) is fixedly connected to a first connecting tube (142); one side of the first connecting tube (142) is fixedly connected to a first connecting rod (143); one end of the first connecting rod (143) is fixedly connected to a clamping block (144); the outer wall of the clamping block (144) is fixedly connected to a push rod (145); and the push rod (145) is movably connected to the first connecting rod (133) via the clamping block (144).

5. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: The screen (19) is arranged below the second powder inlet hole (12).

6. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: The inner wall of the outer shell (3) is fixedly connected to a limiting cylinder (20), and the inner wall of the limiting cylinder (20) is movably connected to the outer wall of the second connecting cylinder (18).

7. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: One end of the second connecting rod (21) away from the outer shell (3) passes through the inner wall of the second connecting tube (18) and extends to the inner wall of the outer shell (3), and the outer wall of the second connecting rod (21) is movably connected to the inner wall of the rotating shaft (17).

8. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: The discharge hole (23) is arranged below the screen (19).

9. The SLM type 3D printer powder spreading device with anti-jamming function according to claim 1, characterized in that: The number of the scrapers (5) is two, and the two scrapers (5) are symmetrically arranged with the vertical center line of the housing (3) as the symmetry axis.

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