A 3D sand mold printing device with quick sand box replacement

Abstract

This invention discloses a 3D sand mold printing device with a quick sand box replacement function. It includes a worktable, a sand box fixedly mounted on the top of the worktable, a sand pump connected to the top of the sand box, a support block fixedly mounted on the top of the sand box, an electric slide rail A fixedly mounted on one side of the support block, an electric slide plate slidably mounted inside the electric slide rail A, an electric slide rail B fixedly mounted at the bottom of the electric slide plate, and an electric slider B slidably mounted inside the electric slide rail B. Upon activation of a cylinder B, the output end of the cylinder B can drive the sand box B to rise, causing the sand box A to slide down from the top of the rotating support plate A, and then onto the top of a slide ladder, thus removing the printed sand box and completing the sand box replacement. The sand box replacement is simple, fast, and structurally simple. The sand box can be quickly replaced and can be individually removed and placed, greatly improving the efficiency and ease of operation of subsequent replacements, and further enhancing printing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of 3D sand mold printing technology, specifically relating to a 3D sand mold printing device with a quick sand box replacement function. Background Technology

[0002] Sand mold 3D printing utilizes microdroplet jetting technology. It involves first laying sand and then selectively jetting a viscous fluid onto the sand surface to print, causing the casting sand to bond together and form the cross-section of the part. This process of laying sand and jetting binder is repeated continuously until the areas where the fluid was jetted dry and bond together to form a three-dimensional sand mold, thus enabling rapid additive manufacturing of casting sand molds.

[0003] Existing 3D sand mold printers typically use a fixed sand box for printing, and the sand box needs to be cleaned after printing. Using a fixed sand box for 3D printing has two main drawbacks. First, it makes demolding difficult after printing, causing significant inconvenience in use. Second, it makes cleaning up the remaining sand after printing inconvenient, preventing continuous printing. Cleaning is necessary before printing can continue, resulting in low printing efficiency and labor-intensive sand cleaning, which further complicates the use of the 3D printer. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a 3D sand mold printing device with a quick sand box replacement function. This solves the problems of inconvenience caused by cleaning up residual sand after printing, the inability to achieve continuous printing, the need for cleaning before continuing printing, low printing efficiency, and labor-intensive sand cleaning, which cause inconvenience to the use of 3D printers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a D-type sand mold printing device with quick sand box replacement, comprising a worktable, a sand box fixedly installed on the top of the worktable, a sand suction pump connected to the top of the sand box, a stand fixedly installed on the top of the sand box, an electric slide rail A fixedly installed on one side of the stand, an electric slide plate slidably installed inside the electric slide rail A, an electric slide rail B fixedly installed at the bottom of the electric slide plate, an electric slider B slidably installed inside the electric slide rail B, an electric slide rail C fixedly installed at the bottom of the electric slide rail C, an electric slider A slidably installed at the bottom of the electric slider A, a connecting column fixedly installed at the bottom of the connecting column, a connecting box connected to the bottom of the connecting box, and a sandblasting head connected to the bottom of the connecting box. A rotating support plate A and a rotating support plate B are rotatably installed inside the worktable. A sandbox A is provided on the top of the moving support plate A and the rotating support plate B. A rotating rod is fixedly installed at both ends of the rotating support plate A and the rotating support plate B. A rotating ring is fixedly installed on the outer side of the rotating rod. A limit slider is fixedly installed on the outer side of the rotating ring. A limit arc block is fixedly installed on one side of the worktable. A cover plate is fixedly installed on the end of the limit arc block away from the worktable. A slide is fixedly installed at the bottom of one end of the worktable. A bottom frame is fixedly installed at the bottom of the bottom frame. A fixed seat is fixedly installed at the bottom of the inner cavity of the bottom frame. A cylinder B is fixedly installed on the top of the fixed seat. A placement seat is fixedly installed at the output end of the cylinder B. A sandbox B is placed on the top of the placement seat. A connecting plate is fixedly installed on one side of the bottom frame. A vertical plate is fixedly installed on the top of the connecting plate. A cylinder A is fixedly installed on one side of the vertical plate. A push plate is fixedly installed at the output end of the cylinder A.

[0006] Preferably, the limiting slider is slidably mounted inside the limiting arc block.

[0007] The advantage of the above technical solution is that when the rotating support plate A and the rotating support plate B rotate, they can drive the rotating rod to rotate. The rotating rod can drive the rotating ring to rotate, thereby driving the limiting slider to rotate. Under the limitation of the limiting arc block, the limiting slider can only rotate forty-five degrees, so that the rotating support plate A and the rotating support plate B can only rotate forty-five degrees, so that the rotating support plate A and the rotating support plate B can only go from vertical to horizontal, or from horizontal to vertical.

[0008] Preferably, the bottom frame is located at the bottom of the rotating support plate A and the rotating support plate B, the sand box B is located at the bottom of the rotating support plate A and the rotating support plate B, the width of the rotating support plate A is greater than the width of the rotating support plate B, and the thickness of the rotating support plate B is greater than the thickness of the rotating support plate A.

[0009] The advantages of the above technical solution are that after cylinder B is started, the output end of cylinder B can drive sand box B to rise. The rising sand box B first contacts the rotating support plate B, lifting the rotating support plate B and causing sand box A, which is placed on top of rotating support plate A and rotating support plate B, to tilt. Then, rotating support plate A is lifted, causing it to tilt and allowing sand box A to slide off the top of rotating support plate A and onto the top of the slide, thus completing the removal of the printed sand box. In addition, sand box B starts to move upward, causing rotating support plate A and rotating support plate B to tilt when there is no thrust, returning to a horizontal state. Then, cylinder B retracts, placing sand box B on top of rotating support plate A and rotating support plate B, thus completing the replacement of sand box. The replacement of sand box is simple and fast.

[0010] Preferably, a rectangular groove is provided on the side of the bottom frame where the connecting plate is installed. The dimensions of the rectangular groove are larger than the dimensions of the cross-section of the sand box B. The position of the connecting plate corresponds to the position of the placement seat.

[0011] The advantage of the above technical solution is that the operator can place the new sand box on the top of the connecting plate. After the cylinder A is started, it can push the push plate to move, thereby pushing the new sand box to the top of the placement seat to form a new sand box B, which makes it convenient to replace the sand box and improves the use effect of the device.

[0012] Preferably, the sand outlet of the sand suction pump is connected to the sand inlet of the connecting box via a pipe, and the sandblasting head is located on top of the rotating support plate A and the rotating support plate B.

[0013] The advantage of the above technical solution is that after the sand suction pump is started, it can draw the printing sand inside the sand box into the connecting box and then spray it out through the sand spraying head to print the sand pattern inside the sand box A.

[0014] Preferably, the top of the sand box has a sand filling port, and a screen is fixedly installed inside the sand box, with the screen located at the bottom of the sand filling port.

[0015] The advantages of the above technical solution are that new sand can be added to the sand box through the sand filling port, and the screen can be used to screen the sand, thus ensuring the normal use of the sand.

[0016] Preferably, a support plate is fixedly installed at the bottom of the connecting plate at the end away from the bottom frame.

[0017] The advantage of the above technical solution is that the support plate can support the end of the connecting plate away from the bottom frame, thereby ensuring the normal operation of the device.

[0018] Preferably, the bottom of the workbench is fixedly equipped with four support legs, which are symmetrically distributed in a rectangle at the four corners of the bottom of the workbench.

[0019] The advantage of the above technical solution is that the four supporting legs can easily support the entire device, and the device can be raised to ensure its normal operation.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. After the cylinder B is activated, its output end drives the sand box B to rise. The rising sand box B first contacts the rotating support plate B, lifting it up and causing the sand box A, placed on top of the rotating support plates A and B, to tilt. Then, the rotating support plate A is lifted, causing it to tilt and allowing the sand box A to slide down from its top onto the slide, thus removing the printed sand box. Simultaneously, the sand box B moves upward, causing the rotating support plates A and B to tilt back to a horizontal position when no pushing force is applied. Then, the cylinder B retracts, placing the sand box B on top of the rotating support plates A and B, completing the sand box replacement. This simple and fast sand box replacement system, with its simple structure, allows for quick replacement and individual placement, greatly improving the efficiency and ease of operation, and further enhancing printing efficiency.

[0022] 2. The staff can place the new sand box on top of the connecting plate. After the cylinder A is started, it can push the push plate to move, thereby pushing the new sand box to the top of the placement seat to form a new sand box B, which makes it convenient to replace the sand box and improves the use effect of the device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a right-view stereoscopic structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the left-side stereoscopic structure of the present invention;

[0027] Figure 5 This is a partial three-dimensional structural diagram of the present invention;

[0028] Figure 6 This is an enlarged structural diagram of point A in the present invention.

[0029] In the diagram: 1. Workbench; 2. Sandbox; 3. Connecting plate; 4. Support plate; 5. Support leg; 6. Vertical plate; 7. Push plate; 8. Cylinder A; 9. Base frame; 11. Sand pump; 12. Screen; 13. Sand inlet; 14. Vertical block; 15. Electric sliding plate; 16. Electric slide rail A; 17. Electric slide rail B; 18. Electric slide rail C; 19. Connecting column; 20. Connecting box; 21. Sandblasting head; 22. Sandbox A; 23. Slide; 24. Rotating support plate A; 25. Rotating support plate B; 26. Rotating rod; 27. Rotating ring; 28. Limiting arc block; 29. ​​Limiting slider; 30. Cover plate; 31. Cylinder B; 32. Placement seat; 33. Sandbox B; 34. Electric slider A; 35. Electric slider B; 36. Fixed seat. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1-6As shown, a 3D sand mold printing device with a quick-change sand box includes a worktable 1. A sand box 2 is fixedly installed on the top of the worktable 1. A sand suction pump 11 is connected to the top of the sand box 2. A stand 14 is fixedly installed on the top of the sand box 2. An electric slide rail A16 is fixedly installed on one side of the stand 14. An electric slide plate 15 is slidably installed inside the electric slide rail A16. An electric slide rail B17 is fixedly installed at the bottom of the electric slide plate 15. An electric slider B35 is slidably installed inside the electric slide rail B17. An electric slide rail C18 is fixedly installed at the bottom of the electric slide rail C18. An electric slider A34 is slidably installed at the bottom of the electric slider A34. A connecting column 19 is fixedly installed at the bottom of the connecting column 19. A connecting box 20 is fixedly installed at the bottom of the connecting box 20. A sandblasting head 21 is connected to the bottom of the connecting box 20. A rotating support plate A24 and a rotating support plate B25 are rotatably installed inside the worktable 1. A sand box A22 is provided on the top of the support plate B25. Rotating support plate A24 and rotating support plate B25 are both fixedly installed with rotating rods 26. Rotating rings 27 are fixedly installed on the outer side of rotating rods 26. Limiting sliders 29 are fixedly installed on the outer side of rotating rings 27. Limiting arc blocks 28 are fixedly installed on one side of the workbench 1. A cover plate 30 is fixedly installed on the end of limiting arc blocks 28 away from the workbench 1. A slide 23 is fixedly installed on the bottom of one end of the workbench 1. A bottom frame 9 is fixedly installed on the bottom of the bottom frame 1. A fixed seat 36 is fixedly installed on the bottom of the inner cavity of the bottom frame 9. A cylinder B31 is fixedly installed on the top of the fixed seat 36. A placement seat 32 is fixedly installed on the output end of the cylinder B31. A sand box B33 is placed on the top of the placement seat 32. A connecting plate 3 is fixedly installed on one side of the bottom frame 9. A vertical plate 6 is fixedly installed on the top of the connecting plate 3. A cylinder A8 is fixedly installed on one side of the vertical plate 6. A push plate 7 is fixedly installed on the output end of the cylinder A8.

[0032] The working principle of the above technical solution is as follows:

[0033] After cylinder B31 is activated, its output end drives sand box B33 to rise. The rising sand box B33 first contacts rotating support plate B25, lifting it and causing sand box A22, placed on top of rotating support plates A24 and B25, to tilt. Then, rotating support plate A24 is lifted, causing it to tilt and allowing sand box A22 to slide off its top and onto the top of slide 23, thus removing the printed sand box. When rotating support plates A24 and B25 rotate, they drive rotating rod 26 to rotate, which in turn drives rotating ring 27. The rotation causes the limiting slider 29 to rotate, and under the limitation of the limiting arc block 28, the limiting slider 29 can only rotate 45 degrees, thus allowing the rotating support plates A24 and B25 to rotate 45 degrees. This means that the rotating support plates A24 and B25 can only move from vertical to horizontal, or from horizontal to vertical. In addition, the sand box B33 starts to move upward, causing the rotating support plates A24 and B25 to tilt when there is no thrust, returning to a horizontal state. Then, the cylinder B31 retracts, placing the sand box B33 on top of the rotating support plates A24 and B25, thus completing the sand box replacement. The sand box replacement is simple and fast.

[0034] In another implementation scheme, such as Figure 1-6 As shown, the limiting slider 29 is slidably installed inside the limiting arc block 28, the bottom frame 9 is located at the bottom of the rotating support plate A24 and the rotating support plate B25, the sand box B33 is located at the bottom of the rotating support plate A24 and the rotating support plate B25, the width of the rotating support plate A24 is greater than the width of the rotating support plate B25, and the thickness of the rotating support plate B25 is greater than the thickness of the rotating support plate A24.

[0035] After cylinder B31 is activated, its output end drives sand box B33 to rise. The rising sand box B33 first contacts rotating support plate B25, lifting it and causing sand box A22, placed on top of rotating support plates A24 and B25, to tilt. Then, rotating support plate A24 is lifted, causing it to tilt and allowing sand box A22 to slide off its top and onto the top of slide 23, thus removing the printed sand box. When rotating support plates A24 and B25 rotate, they drive rotating rod 26 to rotate, which in turn drives rotating ring 27 to rotate. The movement causes the limiting slider 29 to rotate, and under the limitation of the limiting arc block 28, the limiting slider 29 can only rotate 45 degrees, thus causing the rotating support plate A24 and rotating support plate B25 to rotate 45 degrees, so that the rotating support plate A24 and rotating support plate B25 can only move from vertical to horizontal, or from horizontal to vertical. In addition, the sand box B33 starts to move upward, so that the rotating support plate A24 and rotating support plate B25 tilt when there is no thrust, and return to a horizontal state. Then the cylinder B31 retracts, placing the sand box B33 on top of the rotating support plate A24 and rotating support plate B25, thus completing the replacement of the sand box. The replacement of the sand box is simple and fast.

[0036] In another implementation scheme, such as Figure 1-6 As shown, a rectangular groove is provided on one side of the bottom frame 9 where the connecting plate 3 is installed. The dimensions of the rectangular groove are larger than the dimensions of the cross-section of the sand box B33. The position of the connecting plate 3 corresponds to the position of the placement seat 32.

[0037] The staff can place the new sand box on top of the connecting plate 3. After the cylinder A8 is started, it can push the push plate 7 to move, thereby pushing the new sand box to the top of the placement seat 32 to form a new sand box B33, which makes it convenient to replace the sand box and improves the use effect of the device.

[0038] In another implementation scheme, such as Figure 1-6 As shown, the sand outlet of the sand suction pump 11 is connected to the sand inlet of the connecting box 20 through a pipe, and the sand blasting head 21 is located on top of the rotating support plate A24 and the rotating support plate B25.

[0039] After the sand suction pump 11 is started, it can pump the printing sand inside the sand box 2 to the inside of the connecting box 20 and then spray it out through the sand spraying head 21 to print the sand pattern inside the sand box A22.

[0040] In another implementation scheme, such as Figure 1-6 As shown, the top of the sand box 2 is provided with a sand filling port 13, and a screen 12 is fixedly installed inside the sand box 2. The screen 12 is located at the bottom of the sand filling port 13.

[0041] New sand can be added to the sand box 2 through the sand inlet 13, and the screen 12 can screen the sand to ensure its proper use.

[0042] In another implementation scheme, such as Figure 1-6 As shown, a support plate 4 is fixedly installed at the bottom of the connecting plate 3 away from the bottom frame 9, and a support leg 5 is fixedly installed at the bottom of the workbench 1. There are four support legs 5, and the four support legs 5 are symmetrically distributed in a rectangle at the four corners of the bottom of the workbench 1.

[0043] The support plate 4 can support the end of the connecting plate 3 away from the bottom frame 9, thereby ensuring the normal operation of the device. The four support legs 5 can support the entire device and raise the device to ensure its normal operation.

[0044] The working principle and usage process of this invention: After the cylinder B31 is started, the output end of the cylinder B31 can drive the sand box B33 to rise. The rising sand box B33 first contacts the rotating support plate B25, lifting the rotating support plate B25, causing the sand box A22 placed on top of the rotating support plate A24 and the rotating support plate B25 to tilt. Then, the rotating support plate A24 is lifted, causing the rotating support plate A24 to tilt, causing the sand box A22 to slide off the top of the rotating support plate A24 and onto the top of the slide 23, thus completing the removal of the printed sand box. When the rotating support plate A24 and the rotating support plate B25 rotate, they can drive the rotating rod 26 to rotate. The rotating rod 26 can drive the rotating ring 27 to rotate, thereby driving the limiting slider 29 to rotate. Under the limitation of the limiting arc block 28, the limiting slider 29 can only rotate. The rotation angle is 45 degrees, allowing rotating support plates A24 and B25 to rotate only 45 degrees. This ensures that rotating support plates A24 and B25 can only move from vertical to horizontal or from horizontal to vertical. Additionally, sand box B33 moves upwards, causing rotating support plates A24 and B25 to tilt back to a horizontal position when no thrust is applied. Then, cylinder B31 retracts, placing sand box B33 on top of rotating support plates A24 and B25, thus completing the sand box replacement. Sand box replacement is simple and fast. Workers can place the new sand box on top of connecting plate 3. After cylinder A8 is activated, it pushes push plate 7, which in turn pushes the new sand box onto the top of placement seat 32, forming a new sand box B33. This facilitates sand box replacement and improves the device's performance.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 3D sand mold printing apparatus for rapid replacement of a sand box, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly installed with a sand box (2), the top of the sand box (2) is communicated with a sand suction pump (11), the top of the sand box (2) is fixedly installed with a vertical block (14), one side of the vertical block (14) is fixedly installed with an electric sliding rail A (16), the inside of the electric sliding rail A (16) is slidably installed with an electric sliding plate (15), the bottom of the electric sliding plate (15) is fixedly installed with an electric sliding rail B (17), the inside of the electric sliding rail B (17) is slidably installed with an electric sliding block B (35), the bottom of the electric sliding block B (35) is fixedly installed with an electric sliding rail C (18), the bottom of the electric sliding rail C (18) is slidably installed with an electric sliding block A (34), the bottom of the electric sliding block A (34) is fixedly installed with a connecting column (19), the bottom of the connecting column (19) is fixedly installed with a communication box (20), the bottom of the communication box (20) is communicated with a sand blasting head (21), the inside of the workbench (1) is rotatably installed with a rotating support plate A (24) and a rotating support plate B (25), the top of the rotating support plate A (24) and the rotating support plate B (25) is provided with a sand box A (22), both ends of the rotating support plate A (24) and the rotating support plate B (25) are fixedly installed with a rotating rod (26), the outside of the rotating rod (26) is fixedly installed with a rotating ring (27), the outside of the rotating ring (27) is fixedly installed with a limiting sliding block (29), one side of the workbench (1) is fixedly installed with a limiting arc block (28), one end of the limiting arc block (28) away from the workbench (1) is fixedly installed with a cover plate (30), the bottom of one end of the workbench (1) is fixedly installed with a slide (23), the bottom of the workbench (1) is fixedly installed with a bottom frame (9), the bottom of the inner cavity of the bottom frame (9) is fixedly installed with a fixed seat (36), the top of the fixed seat (36) is fixedly installed with a cylinder B (31), the output end of the cylinder B (31) is fixedly installed with a placing seat (32), the top of the placing seat (32) is placed with a sand box B (33), one side of the bottom frame (9) is fixedly installed with a connecting plate (3), the top of the connecting plate (3) is fixedly installed with a vertical plate (6), one side of the vertical plate (6) is fixedly installed with a cylinder A (8), the output end of the cylinder A (8) is fixedly installed with a push plate (7).

2. A 3D sand-printing apparatus with quick-change sandboxes according to claim 1, characterized in that: The limiting sliding block (29) is slidably installed in the limiting arc block (28).

3. The 3D sand-printing apparatus of claim 1, wherein: The bottom frame (9) is located at the bottom of the rotating support plate A (24) and the rotating support plate B (25), the sand box B (33) is located at the bottom of the rotating support plate A (24) and the rotating support plate B (25), the width of the rotating support plate A (24) is greater than the width of the rotating support plate B (25).

4. The 3D sand-printing apparatus of claim 1, wherein: The side of the bottom frame (9) where the connecting plate (3) is installed is provided with a rectangular groove, the specification size of the rectangular groove is greater than the specification size of the cross section of the sand box B (33), the position of the connecting plate (3) corresponds to the position of the placing seat (32).

5. The 3D sand-printing apparatus of claim 1, wherein: The sand outlet end of the sand suction pump (11) is connected with the sand inlet of the communication box (20) through a pipeline, and the sand spraying head (21) is located on the top of the rotating support plate A (24) and the rotating support plate B (25).

6. The 3D sand-printing apparatus of claim 1, wherein: The top of the sand box (2) is provided with a sand adding opening (13), and the inside of the sand box (2) is fixedly provided with a screen (12), and the screen (12) is located at the bottom of the sand adding opening (13).

7. The 3D sand-printing apparatus of claim 1, wherein: The bottom of the connecting plate (3) away from the bottom frame (9) is fixedly provided with a support plate (4).

8. The 3D sand-printing apparatus of claim 1, wherein: The bottom of the workbench (1) is fixedly provided with support legs (5), the support legs (5) are four, and the four support legs (5) are distributed in a rectangular symmetry on the four corners of the bottom of the workbench (1).

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