Resin bonded sand mold 3D printing device with sintering function

Abstract

The invention relates to the field of casting sand mold 3D printing, in particular to a resin bonding sand mold 3D printing device with a sintering function, the resin bonding sand mold 3D printing device with the sintering function comprises a sand mold 3D printing device body, a top cover is mounted at the top end of the sand mold 3D printing device body, and an isolation glass plate is mounted on the side wall of the top cover; an operation panel is fixedly installed on one side of the bottom end of the top cover, a sand laying device is installed at the bottom end in the top cover, a glue spraying mechanism is arranged on one side in the top cover and fixedly connected with the top end of the sand mold 3D printing device body, and a sintering mechanism is arranged below the glue spraying mechanism and fixedly connected with the glue spraying mechanism. According to the resin bonded sand mold 3D printing device with the sintering function, condensation-formed crude sand can be rapidly sintered and fixed through the sintering mechanism arranged on the device, and it is guaranteed that a 3D printing sand mold is completely consistent with a needed model.

Description

Technical Field

[0001] The present invention relates to the field of casting sand mold 3D printing, and in particular to a resin-bonded sand mold 3D printing device with a sintering function. Background Art

[0002] Existing sand mold 3D printing devices all form the sand mold through resin bonding after sand laying. During the working process, various factors such as the resin nozzle not moving into place and insufficient injection of resin binder will cause partial loss of the 3D printed sand mold, and failure to complete solidification molding according to the required model, resulting in scrapping. Compared with traditional sand casting, the cost of sand mold 3D printing is extremely high. It is very uneconomical to scrap the entire 3D printed sand mold just because of partial loss of the sand mold. It will need to be re-printed, which will waste a lot of printing materials. At the same time, it will take up a lot of processing time. Such operation is not conducive to the staff to operate and process.

[0003] Therefore, it is necessary to provide a new resin-bonded sand mold 3D printing device with sintering function to solve the above technical problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a resin-bonded sand mold 3D printing device with a sintering function.

[0005] The resin-bonded sand mold 3D printing device with a sintering function provided by the present invention comprises: a sand mold 3D printing device body, a top cover is installed at the top of the sand mold 3D printing device body, an isolation glass plate is installed on the side wall of the top cover, an operation panel is fixedly installed on one side of the bottom end of the top cover, a sand-laying device is installed at the inner bottom end of the top cover, a glue spraying mechanism is provided on one side of the inner part of the top cover, and the glue spraying mechanism is fixedly connected to the top of the sand mold 3D printing device body, a sintering mechanism is provided below the glue spraying mechanism, and the sintering mechanism and the glue spraying mechanism are fixedly connected, and the glue spraying mechanism comprises: a servo lifting device, the servo lifting device is fixedly installed on the inner side wall of the top cover, and a mounting plate is fixedly installed on the output end of the servo lifting device.

[0006] Preferably, the glue spraying mechanism further comprises: an X / Y translation device, the X / Y translation device is fixedly mounted inside the mounting frame, a glue spraying device is fixedly mounted at the output end of the X / Y translation device, and a horizontal plate is fixedly mounted at the bottom end of the glue spraying device.

[0007] Preferably, the sintering mechanism includes: a mounting ring, the top of the mounting ring is fixedly connected to the lower surface of the cross plate through a connecting frame, and the connecting frame is fixedly installed on the upper surface of the mounting ring, a mounting block is fixedly installed on one side of the mounting ring, a working motor is fixedly installed inside the top of the mounting block, the mounting ring is rotatably connected to the inside of the mounting ring, a connecting block is fixedly installed on the inner ring of the gear ring, a laser instrument is fixedly installed on the top of the connecting block, the mounting block is rotatably connected to the inside of the mounting block, the gear and the gear ring are meshingly connected, a mounting rod is fixedly installed on the lower surface of the mounting ring, and the bottom end of the mounting rod is rotatably connected to the reflective panel.

[0008] Preferably, the connecting frame is arranged in a special-shaped Z shape.

[0009] Preferably, the connecting frames are distributed in an annular shape on the upper surface of the mounting ring.

[0010] Preferably, a mounting groove is provided inside the mounting ring and is rotatably matched with the gear ring.

[0011] Preferably, a connecting frame rotatably connected to the mounting rod is fixedly mounted on one end of the reflective panel close to the mounting rod.

[0012] Preferably, a mounting hole for mounting with the laser instrument is provided in the center of the connecting block.

[0013] Compared with the related art, the resin bonded sand mold 3D printing device with sintering function provided by the present invention has the following beneficial effects:

[0014] When the equipment is printing, the sand-laying device 5 moves on the working platform to lay the raw sand; the glue-spraying mechanism 6 moves along the XYZ direction guide rail according to the 3D model of the required printed sand mold and sprays the resin binder to solidify the raw sand; then the sintering mechanism 7 emits a laser beam, and the sintering mechanism 7 scans and identifies whether the raw sand has been solidified according to the 3D model of the required printed sand mold. If the resin binder in a local area is not sprayed in place, resulting in the raw sand not solidifying, that is, the printed sand mold is incomplete, the sintering function of the sintering mechanism 7 is automatically operated. This resin-bonded sand mold 3D printing device with a sintering function can quickly sinter and fix the solidified raw sand through the sintering mechanism provided on the equipment, so as to ensure that the 3D printed sand mold is completely consistent with the required model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 One of the structural schematic diagrams of a resin-bonded sand mold 3D printing device with sintering function provided by the present invention;

[0016] Figure 2 A second structural schematic diagram of a resin-bonded sand mold 3D printing device with sintering function provided by the present invention;

[0017] Figure 3 for Figure 1The structural schematic diagram of the glue spraying mechanism and the sintering mechanism shown;

[0018] Figure 4 for Figure 1 The structural schematic diagram of the sintering mechanism shown;

[0019] Figure 5 for Figure 1 The schematic diagram of the half-section structure of the sintering mechanism is shown.

[0020] Numbers in the figure: 1. Sand mold 3D printing device body; 2. Top cover; 3. Isolation glass plate; 4. Operation panel; 5. Sanding device; 6. Glue spraying mechanism; 7. Sintering mechanism; 8. Servo lifting device; 9. Mounting plate; 10. Mounting frame; 11. X / Y translation device; 12. Glue spraying device; 13. Cross plate; 14. Mounting ring; 15. Connecting frame; 16. Mounting block; 17. Working motor; 18. Gear ring; 19. Connecting block; 20. Laser instrument; 21. Gear; 22. Mounting rod; 23. Reflection panel. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0023] See also Figures 1 to 5 A resin-bonded sand mold 3D printing device with a sintering function provided by an embodiment of the present invention comprises: a sand mold 3D printing device body 1, a top cover 2 is installed at the top of the sand mold 3D printing device body 1, an isolation glass plate 3 is installed on the side wall of the top cover 2, an operation panel 4 is fixedly installed on one side of the bottom end of the top cover 2, a sand-laying device 5 is installed at the inner bottom end of the top cover 2, a glue spraying mechanism 6 is provided on one side of the inner part of the top cover 2, and the glue spraying mechanism 6 is fixedly connected to the top of the sand mold 3D printing device body 1, a sintering mechanism 7 is provided below the glue spraying mechanism 6, and the sintering mechanism 7 is fixedly connected to the glue spraying mechanism 6, and the glue spraying mechanism 6 comprises: a servo lifting device 8, the servo lifting device 8 is fixedly installed on the inner side wall of the top cover 2, and a mounting plate 9 is fixedly installed on the output end of the servo lifting device 8.

[0024] It should be noted that: when the equipment is printing, the sand-laying device 5 moves on the work platform to lay the raw sand; the glue-spraying mechanism 6 moves along the XYZ direction guide rail according to the 3D model of the required printed sand mold and sprays the resin binder to solidify the raw sand into shape; then the sintering mechanism 7 emits a laser beam, and the sintering mechanism 7 scans and identifies whether the raw sand has been solidified according to the 3D model of the required printed sand mold. If the resin binder in a local area is not sprayed in place, resulting in the raw sand not solidifying, that is, the printed sand mold is incomplete, the sintering function of the sintering mechanism 7 is automatically operated to ensure that the 3D printed sand mold is completely consistent with the required model.

[0025] In the embodiments of the present invention, please refer to Figure 3 The glue spraying mechanism 6 further includes: an X / Y translation device 11, the X / Y translation device 11 is fixedly mounted inside the mounting frame 10, a glue spraying device 12 is fixedly mounted at the output end of the X / Y translation device 11, and a horizontal plate 13 is fixedly mounted at the bottom end of the glue spraying device 12;

[0026] It should be noted that: when the glue spraying mechanism 6 starts to operate, the servo lifting device 8 cooperates with the X / Y translation device 11 to realize the movement of the glue spraying device 12 in the three axes of X / Y / Z, so as to better spray the resin adhesive. In order to increase the installation stability of the X / Y translation device 11, the top of the servo lifting device 8 is installed with a mounting plate 9 and a mounting frame 10, so that the X / Y translation device 11 can be stably installed;

[0027] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 The sintering mechanism 7 includes: a mounting ring 14, the top of which is fixedly connected to the lower surface of the horizontal plate 13 through a connecting frame 15, and the connecting frame 15 is fixedly installed on the upper surface of the mounting ring 14, a mounting block 16 is fixedly installed on one side of the mounting ring 14, a working motor 17 is fixedly installed in the top of the mounting block 16, a gear ring 18 is rotatably connected inside the mounting ring 14, a connecting block 19 is fixedly installed on the inner ring of the gear ring 18, a laser instrument 20 is fixedly installed on the top of the connecting block 19, a gear 21 is rotatably connected inside the mounting block 16, and the gear 21 is meshed with the gear ring 18, a mounting rod 22 is fixedly installed on the lower surface of the mounting ring 14, and a reflective panel 23 is rotatably connected to the bottom end of the mounting rod 22;

[0028] It should be noted that: when the glue spraying mechanism 6 solidifies the raw sand by spraying the resin adhesive, the working motor 17 starts to work, driving the gear 21 to rotate. As the gear 21 rotates, the gear ring 18 is driven to rotate. The connecting block 19 is installed on the gear ring 18, and the connecting block 19 is installed on the laser instrument 20, which can continuously emit laser to the reflective panel 23, and reflect the laser to the solidified raw sand through the reflective panel 23. In addition, the reflective panel 23 is provided with a scanning unit, which can scan the raw sand;

[0029] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 , the connecting frame 15 is arranged in a special-shaped Z shape;

[0030] It should be noted that the special-shaped connecting frame 15 can be used to fix the mounting ring 14 and the horizontal plate 13;

[0031] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 , the connecting frame 15 is distributed in an annular shape on the upper surface of the mounting ring 14;

[0032] It should be noted that the annularly distributed connecting frame 15 can stably install the mounting ring 14;

[0033] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 The interior of the mounting ring 14 is provided with a mounting groove which is rotatably matched with the gear ring 18;

[0034] It should be noted that the mounting groove inside the mounting ring 14 can be used to conceal the gear ring 18;

[0035] In the embodiments of the present invention, please refer to Figure 5 , a connecting frame rotatably connected to the mounting rod 22 is fixedly mounted on one end of the reflective panel 23 close to the mounting rod 22;

[0036] It should be noted that: the connecting frame at one end of the reflective panel 23 can mount the reflective panel 23 on the bottom end of the mounting rod 22;

[0037] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 A mounting hole for mounting with the laser instrument 20 is provided in the center of the connecting block 19;

[0038] It should be noted that the mounting hole in the center of the connecting block 19 can stabilize the laser instrument 20 .

[0039] Working principle:

[0040] When the equipment is printing, the sand-laying device 5 moves on the working platform to lay the raw sand; the glue-spraying mechanism 6 moves along the XYZ direction guide rail according to the 3D model of the required sand mold and sprays the resin binder to solidify the raw sand. When the glue-spraying mechanism 6 starts to run, the servo lifting device 8 cooperates with the X / Y translation device 11 to realize the X / Y / Z three-axis movement of the glue-spraying device 12 to better spray the resin binder. In order to increase the installation stability of the X / Y translation device 11, the top of the servo lifting device 8 is equipped with a mounting plate 9 and a mounting frame 10, which can be used to stably install the X / Y translation device 11. Then, the raw sand is solidified and formed by spraying the resin binder on the glue-spraying mechanism 6. At this time, the working motor 1 7 starts to work, driving the gear 21 to rotate. As the gear 21 rotates, the ring gear 18 is driven to rotate. A connecting block 19 is installed on the ring gear 18, and a laser instrument 20 is installed on the connecting block 19. The laser can continuously emit laser to the reflective panel 23, which is reflected by the reflective panel 23 to the solidified raw sand. In addition, a scanning unit is provided on the reflective panel 23, which can scan the raw sand and identify whether the raw sand has been solidified according to the 3D model of the required printed sand mold through the sintering mechanism 7. If the resin binder in a local area is not sprayed in place, resulting in the raw sand not solidifying, that is, the printed sand mold is incomplete, the sintering function of the sintering mechanism 7 is automatically operated to ensure that the 3D printed sand mold is completely consistent with the required model.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A resin-bonded sand mold 3D printing device with sintering function, characterized in that: include: A sand mold 3D printing device body (1), wherein a top cover (2) is installed at the top of the sand mold 3D printing device body (1), an isolation glass plate (3) is installed on the side wall of the top cover (2), an operation panel (4) is fixedly installed on one side of the bottom end of the top cover (2), a sanding device (5) is installed on the inner bottom end of the top cover (2), a glue spraying mechanism (6) is provided on one side of the inner side of the top cover (2), and the glue spraying mechanism (6) is fixedly connected to the top of the sand mold 3D printing device body (1), a sintering mechanism (7) is provided below the glue spraying mechanism (6), and the sintering mechanism (7) is fixedly connected to the glue spraying mechanism (6), and the glue spraying mechanism (6) comprises: a servo lifting device (8), the servo lifting device (8) is fixedly installed on the inner side wall of the top cover (2), a mounting plate (9) is fixedly installed on the output end of the servo lifting device (8), and a mounting frame (10) is fixedly installed on one side of the top end of the mounting plate (9).

2. The resin-bonded sand mold 3D printing device with sintering function according to claim 1, characterized in that: The glue spraying mechanism (6) further comprises: an X / Y translation device (11), the X / Y translation device (11) being fixedly mounted inside the mounting frame (10), a glue spraying device (12) being fixedly mounted at the output end of the X / Y translation device (11), and a horizontal plate (13) being fixedly mounted at the bottom end of the glue spraying device (12).

3. The resin-bonded sand mold 3D printing device with sintering function according to claim 1, characterized in that: The sintering mechanism (7) comprises: a mounting ring (14), the top end of the mounting ring (14) is fixedly connected to the lower surface of the horizontal plate (13) through a connecting frame (15), and the connecting frame (15) is fixedly installed on the upper surface of the mounting ring (14); a mounting block (16) is fixedly installed on one side of the mounting ring (14), a working motor (17) is fixedly installed inside the top end of the mounting block (16), a gear ring (18) is rotatably connected inside the mounting ring (14), a connecting block (19) is fixedly installed on the inner ring of the gear ring (18), a laser instrument (20) is fixedly installed on the top end of the connecting block (19), a gear (21) is rotatably connected inside the mounting block (16), and the gear (21) is meshingly connected to the gear ring (18); a mounting rod (22) is fixedly installed on the lower surface of the mounting ring (14), and a reflective panel (23) is rotatably connected to the bottom end of the mounting rod (22).

4. The resin-bonded sand mold 3D printing device with sintering function according to claim 3 is characterized in that: The connecting frame (15) is arranged in a special-shaped Z shape.

5. The resin-bonded sand mold 3D printing device with sintering function according to claim 3, characterized in that: The connecting frame (15) is distributed in an annular shape on the upper surface of the mounting ring (14).

6. The resin-bonded sand mold 3D printing device with sintering function according to claim 3, characterized in that: The interior of the mounting ring (14) is provided with a mounting groove which is rotatably matched with the gear ring (18).

7. The resin-bonded sand mold 3D printing device with sintering function according to claim 3, characterized in that: A connecting frame rotatably connected to the mounting rod (22) is fixedly mounted on one end of the reflection panel (23) close to the mounting rod (22).

8. The resin-bonded sand mold 3D printing device with sintering function according to claim 3, characterized in that: The center of the connection block (19) is provided with a mounting hole for mounting in cooperation with the laser instrument (20).

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