Quantitative powder falling device of SLM equipment

Abstract

The invention provides a quantitative powder falling device of SLM equipment, and relates to the technical field of 3D printing, the quantitative powder falling device comprises a mounting bracket, the front surface of the mounting bracket is fixedly connected with a first powder falling shell, the inner wall of the first powder falling shell is provided with a first rotating shaft, and the outer wall of the first rotating shaft is fixedly connected with a connecting ring; the outer wall of the connecting ring is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a material blocking part, the top of the first powder falling shell is fixedly connected with a feeding hopper, the bottom of the first powder falling shell is fixedly connected with a second powder falling shell, and a discharging hole is formed in the outer wall of the second powder falling shell. A connecting shaft is arranged on the inner wall of the second powder falling shell, the quantitative powder falling device of the SLM equipment can achieve the purpose of quantitative powder falling of the device, and the quantitative powder falling device can be adjusted before a machine is started, so that the quantitative powder falling device can adjust the appropriate powder falling amount, and convenience is provided for use of workers.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a quantitative powder dropping device for SLM equipment. 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 and other fields.

[0003] In the process of using SLM equipment, a quantitative powder dropping device is often needed. The printing area required by the SLM equipment is different each time. Most of the quantitative powder dropping devices currently used in the market cannot control the amount of powder dropped each time. Excessive powder dropping will cause the equipment's powder spreading speed to decrease, which brings inconvenience to the staff and reduces the practicality of the quantitative powder dropping device of the SLM equipment. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a quantitative powder dropping device for SLM equipment to solve all or one of the problems mentioned in the above background technology.

[0005] Based on the above purpose, the present invention provides a quantitative powder dropping device for SLM equipment, comprising a mounting bracket, a first powder dropping shell is fixedly connected to the front of the mounting bracket, a first rotating shaft is arranged on the inner wall of the first powder dropping shell, a connecting ring is fixedly connected to the outer wall of the first rotating shaft, a connecting rod is fixedly connected to the outer wall of the connecting ring, a material blocking member is fixedly connected to one end of the connecting rod, a feeding funnel is fixedly connected to the top of the first powder dropping shell, a second powder dropping shell is fixedly connected to the bottom of the first powder dropping shell, a discharge hole is opened on the outer wall of the second powder dropping shell, and a connecting shaft is arranged on the inner wall of the second powder dropping shell. The outer wall of the connecting shaft is fixedly connected to a stop block, the outer wall of the stop block is provided with a feed groove, the outer wall of the connecting shaft is fixedly connected to a spring, one end of the spring is fixedly connected to a slider, the top of the slider is fixedly connected to a limiting block, the top of the limiting block is movably connected to a clamping piece, the back of the clamping piece is fixedly connected to a first base, the front of the first base is fixedly connected to a limiting plate, the bottom of the mounting bracket is fixedly connected to a protective shell, one side of the first base is fixedly connected to a second rotating shaft, the outer wall of the second rotating shaft is fixedly connected to a first pulley, and the outer wall of the first rotating shaft is fixedly connected to a second pulley.

[0006] Optionally, a second base is fixedly connected to one side of the protective shell, a motor is fixedly connected to the top of the second base, the output shaft of the motor is fixedly connected to one end of the second rotating shaft, and the motor can drive the rotation of the first rotating shaft and the second rotating shaft at the same time, so that the position of each circle of the feed trough and the notch of the material blocking member is the same.

[0007] Optionally, a belt is movably connected to the outer wall of the second pulley, and the second pulley is movably connected to the first pulley via the belt.

[0008] Optionally, the number of the feed troughs is six, and the sizes of the six feed troughs are different. The different sizes of the feed troughs result in different volumes of the feed troughs.

[0009] Optionally, there are two limit plates, and the slider is located between the two limit plates.

[0010] Optionally, a handle is fixedly connected to one end of the connecting shaft, and an observation plate is provided on the front of the second powder dropping shell, so that a staff can observe the position of the feed trough through the observation plate.

[0011] Optionally, the outer wall of the blocking block is movably connected to the inner wall of the second powder dropping shell.

[0012] It can be seen from the above that the quantitative powder dropping device of the SLM equipment provided by the present invention has the following beneficial effects:

[0013] 1. The quantitative powder dropping device of the SLM equipment can achieve the purpose of quantitative powder dropping by providing the second powder dropping shell, the connecting shaft, the feed trough, the first powder dropping shell, the first rotating shaft, the connecting ring, the connecting rod and the material blocking member. The quantitative powder dropping device can be adjusted before the machine is started, so that the quantitative powder dropping device can adjust the appropriate powder dropping amount, thereby providing convenience for the staff.

[0014] 2. The quantitative powder dropping device of the SLM equipment can achieve the purpose of facilitating the observation of the feed trough by setting up the second powder dropping shell and the observation plate, so that the staff can observe the size of the feed trough according to the observation plate, and adjust the appropriate feed trough according to actual needs, thereby improving the practicality of the quantitative powder dropping device.

[0015] 3. The quantitative powder dropping device of the SLM equipment can achieve the purpose of simultaneous rotation of the first rotating shaft and the second rotating shaft through the arranged motor, the first pulley, the belt and the second pulley. The first base and the connecting shaft are driven to rotate by the second rotating shaft, so that the feed trough and the material blocking member rotate at the same time, so that the powder of the material blocking member can enter the feed trough through the material blocking member, thereby further improving the practicability of the quantitative device. 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 connecting shaft and the handle of the present invention;

[0019] Figure 3 It is a schematic diagram of the connection structure between the first base and the second rotating shaft of the present invention;

[0020] Figure 4 It is a schematic diagram of the connection structure between the connecting shaft and the spring of the present invention.

[0021] Among them, 1. mounting bracket; 2. first powder dropping shell; 3. first rotating shaft; 4. connecting ring; 5. connecting rod; 6. material blocking member; 7. feeding funnel; 8. second powder dropping shell; 9. material discharge hole; 10. connecting shaft; 11. material blocking block; 12. feeding trough; 13. handle; 14. observation plate; 15. spring; 16. slider; 17. limit block; 18. clamp; 19. first base; 20. protective shell; 21. second base; 22. motor; 23. first pulley; 24. belt; 25. second pulley; 26. limit plate; 27. second rotating shaft. 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 a quantitative powder dropping device for SLM equipment, comprising a mounting bracket, a first powder dropping shell is fixedly connected to the front of the mounting bracket, a first rotating shaft is arranged on the inner wall of the first powder dropping shell, a connecting ring is fixedly connected to the outer wall of the first rotating shaft, a connecting rod is fixedly connected to the outer wall of the connecting ring, a material blocking member is fixedly connected to one end of the connecting rod, a feeding funnel is fixedly connected to the top of the first powder dropping shell, a second powder dropping shell is fixedly connected to the bottom of the first powder dropping shell, a discharge hole is arranged on the outer wall of the second powder dropping shell, and a connecting rod is fixedly connected to the inner wall of the second powder dropping shell. A connecting shaft, the outer wall of the connecting shaft is fixedly connected with a stop block, the outer wall of the stop block is provided with a feed groove, the outer wall of the connecting shaft is fixedly connected with a spring, one end of the spring is fixedly connected with a slider, the top of the slider is fixedly connected with a limiting block, the top of the limiting block is movably connected with a clamp, the back of the clamp is fixedly connected with a first base, the front of the first base is fixedly connected with a limiting plate, the bottom of the mounting bracket is fixedly connected with a protective shell, one side of the first base is fixedly connected with a second rotating shaft, the outer wall of the second rotating shaft is fixedly connected with a first pulley, and the outer wall of the first rotating shaft is fixedly connected with a second pulley.

[0025] The design of the present invention can achieve the purpose of quantitative powder dropping of the device by arranging the second powder dropping shell, connecting shaft, feed trough, first powder dropping shell, first rotating shaft, connecting ring, connecting rod and material blocking member, and can adjust the quantitative powder dropping device before the machine is started, so that the quantitative powder dropping device can adjust the appropriate powder dropping amount, thereby providing convenience for the use of the staff; the second powder dropping shell and observation plate can be provided to achieve the purpose of facilitating the observation of the feed trough, so that the staff can observe the size of the feed trough according to the observation plate, and adjust the appropriate feed trough according to actual needs, thereby improving the practicality of the quantitative powder dropping device; the purpose of simultaneous rotation of the first rotating shaft and the second rotating shaft can be achieved by arranging the motor, the first pulley, the belt and the second pulley, and the first base and the connecting shaft are driven to rotate by the second rotating shaft, so that the feed trough and the material blocking member rotate at the same time, so that the powder of the material blocking member can enter the feed trough through the material blocking member, thereby further improving the practicality of the quantitative device.

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

[0027] See also Figure 1-4The quantitative powder dropping device of the SLM equipment comprises a mounting bracket 1, a first powder dropping shell 2 is fixedly connected to the front of the mounting bracket 1, a first rotating shaft 3 is arranged on the inner wall of the first powder dropping shell 2, a connecting ring 4 is fixedly connected to the outer wall of the first rotating shaft 3, a connecting rod 5 is fixedly connected to the outer wall of the connecting ring 4, a material blocking member 6 is fixedly connected to one end of the connecting rod 5, a feeding funnel 7 is fixedly connected to the top of the first powder dropping shell 2, a second powder dropping shell 8 is fixedly connected to the bottom of the first powder dropping shell 2, a discharge hole 9 is opened on the outer wall of the second powder dropping shell 8, a connecting shaft 10 is arranged on the inner wall of the second powder dropping shell, and a material blocking block 1 is fixedly connected to the outer wall of the connecting shaft 10 1. A feed groove 12 is provided on the outer wall of the blocking block 11, a spring 15 is fixedly connected to the outer wall of the connecting shaft 10, one end of the spring 15 is fixedly connected to a slider 16, the top of the slider 16 is fixedly connected to a limiting block 17, the top of the limiting block 17 is movably connected to a clamp 18, the back of the clamp 18 is fixedly connected to a first base 19, the front of the first base 19 is fixedly connected to a limiting plate 26, the bottom of the mounting bracket 1 is fixedly connected to a protective shell 20, one side of the first base 19 is fixedly connected to a second rotating shaft 27, the outer wall of the second rotating shaft 27 is fixedly connected to a first pulley 23, and the outer wall of the first rotating shaft 3 is fixedly connected to a second pulley 25.

[0028] A second base 21 is fixedly connected to one side of the protective shell 20, and a motor 22 is fixedly connected to the top of the second base 21. The output shaft of the motor 22 is fixedly connected to one end of the second rotating shaft 27. The motor 22 can simultaneously drive the rotation of the first rotating shaft 3 and the second rotating shaft 27, so that the positions of the notches of each circle of the feed trough 12 and the material blocking member 6 are the same.

[0029] The outer wall of the second pulley 25 is movably connected with a belt 24 , and the second pulley 25 is movably connected to the first pulley 23 via the belt 24 .

[0030] There are six feed troughs 12 , and the sizes of the six feed troughs 12 are different. The different sizes of the feed troughs 12 result in different volumes of the feed troughs 12 .

[0031] There are two limit plates 26 , and the slider 16 is located between the two limit plates 26 .

[0032] One end of the connecting shaft 10 is fixedly connected with a handle 13 , and an observation plate 14 is provided on the front of the second powder dropping shell 8 , through which a worker can observe the position of the feed trough 12 .

[0033] The outer wall of the blocking block 11 is movably connected to the inner wall of the second powder dropping housing 8 .

[0034] When in use, the powder is poured into the first powder dropping shell 2 in advance through the feed funnel 7, and the connecting shaft 10 is rotated through the handle 13, driving the slider 16 and the limit block 17 to rotate counterclockwise, and the spring 15 is compressed so that the limit block 17 will not be stuck by the clamp 18, thereby allowing the stop block 11 and the feed trough 12 to rotate, and the appropriate feed trough 12 is adjusted under the first powder dropping shell 2 through the observation plate 14, and the motor 22 is turned to drive the first rotating shaft 3 and the second rotating shaft 27 to rotate clockwise, and the second rotating shaft 27 drives the first base 19 to rotate, thereby clamping the limit block 17 through the clamp 18, driving the connecting shaft 10, the stop block 11 and the feed trough 12 to rotate, when the notch of the stopper 6 falls to the bottom, the powder in the stopper 6 enters the second powder dropping shell 8 and enters the feed trough 12 through the first powder dropping shell 2, and when the feed trough 12 rotates to the vicinity of the discharge hole 9, the powder falls out of the powder dropping device through the discharge hole 9.

[0035] 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.

[0036] 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 quantitative powder dropping device for a SLM device, comprising a mounting bracket (1), characterized in that: The front of the mounting bracket (1) is fixedly connected to a first powder dropping shell (2), the inner wall of the first powder dropping shell (2) is provided with a first rotating shaft (3), the outer wall of the first rotating shaft (3) is fixedly connected to a connecting ring (4), the outer wall of the connecting ring (4) is fixedly connected to a connecting rod (5), one end of the connecting rod (5) is fixedly connected to a material blocking member (6), the top of the first powder dropping shell (2) is fixedly connected to a feeding funnel (7), the bottom of the first powder dropping shell (2) is fixedly connected to a second powder dropping shell (8), the outer wall of the second powder dropping shell (8) is provided with a discharge hole (9), the inner wall of the second powder dropping shell is provided with a connecting shaft (10), the outer wall of the connecting shaft (10) is fixedly connected to a material blocking block (11), the outer wall of the material blocking block (11) is provided with A feed trough (12) is provided, the outer wall of the connecting shaft (10) is fixedly connected with a spring (15), one end of the spring (15) is fixedly connected with a slider (16), the top of the slider (16) is fixedly connected with a limit block (17), the top of the limit block (17) is movably connected with a clamp (18), the back of the clamp (18) is fixedly connected with a first base (19), the front of the first base (19) is fixedly connected with a limit plate (26), the bottom of the mounting bracket (1) is fixedly connected with a protective shell (20), one side of the first base (19) is fixedly connected with a second rotating shaft (27), the outer wall of the second rotating shaft (27) is fixedly connected with a first pulley (23), and the outer wall of the first rotating shaft (3) is fixedly connected with a second pulley (25).

2. The quantitative powder dropping device of the SLM equipment according to claim 1, characterized in that: A second base (21) is fixedly connected to one side of the protective shell (20), a motor (22) is fixedly connected to the top of the second base (21), and an output shaft of the motor (22) is fixedly connected to one end of a second rotating shaft (27).

3. The quantitative powder dropping device of the SLM equipment according to claim 1, characterized in that: The outer wall of the second belt pulley (25) is movably connected with a belt (24), and the second belt pulley (25) is movably connected to the first belt pulley (23) via the belt (24).

4. The quantitative powder dropping device of the SLM equipment according to claim 1, characterized in that: The number of the feed troughs (12) is six, and the sizes of the six feed troughs (12) are all different.

5. The quantitative powder dropping device of the SLM equipment according to claim 1, characterized in that: The number of the limiting plates (26) is two, and the sliding block (16) is located between the two limiting plates (26).

6. The quantitative powder dropping device of the SLM equipment according to claim 1, characterized in that: One end of the connecting shaft (10) is fixedly connected to a handle (13), and the front of the second powder dropping shell (8) is provided with an observation panel (14).

7. The quantitative powder dropping device of the SLM equipment according to claim 1, characterized in that: The outer wall of the material blocking block (11) is movably connected to the inner wall of the second powder dropping shell (8).

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