A sand cleaning device for sand mold 3D printing

Abstract

The utility model discloses a sand cleaning device for sand mould 3D printing, include: fixed seat, fixed component, sand cleaning subassembly, fixed seat includes the control box of one side fixed mounting. The utility model discloses a sand cleaning device for sand mould 3D printing, and the multiple groups of first electric push rod and electric clamping jaw of arranging and installing on the front end rotating support of fixed seat can hold the model of sand mould 3D printing stably at both ends, thereby guaranteeing the stability in its cleaning, and the electric clamping jaw of both sides also can be recycled alternately through first electric push rod, thereby cleaning the holding part, avoid the problem that cleaning is not complete, simultaneously, the whole rotating support also can be driven to automatic turn over through first motor, thereby improving the convenience of turning over in the model cleaning of holding in the rotating support, the soft hair brush disc and the spray head installed on the upper end and lower end of fixed seat can also brush and wash sand and spray sand in turn on the both end faces of the model, to improve the sand cleaning effect of the model.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a sand cleaning device for sand mold 3D printing. Background Technology

[0002] Sand mold 3D printing utilizes microdroplet jetting technology. It involves first laying sand, 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. Eventually, the areas where the fluid was jetted dry and bond together to form a three-dimensional sand mold, enabling rapid additive manufacturing of casting sand molds. After the sand mold 3D printing model is completed, the sand particles remaining at its outer end need to be cleaned.

[0003] Existing sand cleaning devices for 3D sand printing, such as the one disclosed in publication number CN215786580U, have the advantage of combining the setting of air jet pipes with the rotation of positioning chuck to ensure multi-directional sand cleaning. However, the model fixed at the upper end of the positioning chuck is inconvenient to automatically flip over during sand cleaning, which affects its sand cleaning efficiency. Therefore, we propose a sand cleaning device for 3D sand printing. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A sand-cleaning device for sand mold 3D printing includes: a fixed base, a fixed assembly, and a sand-cleaning assembly; the fixed base includes a control box fixedly installed on one side thereon; the fixed assembly includes a rotating shaft rotatably installed inside the fixed base, a rotating frame fixedly installed at the front end of the rotating shaft, first electric push rods fixedly installed at both ends of the rotating frame, electric grippers fixedly installed at the front ends of the first electric push rods, a driven gear fixedly installed on the rotating shaft, and a driving gear meshing with the upper end of the driven gear; the sand-cleaning assembly includes a soft brush plate movably installed on the upper part of the rotating frame, a second motor fixedly installed on the top of the soft brush plate, a second electric push rod fixedly installed on the top of the second motor, a nozzle movably installed on the lower part of the rotating frame, an air pipe fixedly connected to one side of the bottom of the nozzle, and an air pump fixedly installed at the bottom of the air pipe.

[0007] Preferably, a first motor is also fixedly installed on one side of the drive gear, and the first motor is fixed to the upper end of the mounting base.

[0008] Preferably, a power supply is also fixedly installed on one side of the rotating frame, and the first electric push rod and the electric gripper are both electrically connected to the power supply.

[0009] Preferably, the electric gripper is fixedly mounted with support rods on both the upper and lower sides, and the upper and lower ends of both sides of the rotating frame are provided with support grooves, and the support rods are movably installed in the support grooves.

[0010] Preferably, a support frame is also fixedly installed at the outer end of the second electric push rod.

[0011] Preferably, a connecting bracket is also fixedly installed at the bottom of the nozzle.

[0012] Preferably, a third electric push rod is also fixedly installed on one side of the connecting frame, and the third electric push rod is fixed in the fixed base.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, multiple sets of first electric push rods and electric grippers are arranged and installed on the rotating frame at the front end of the fixed base. They can stably clamp the sand mold 3D printed model at both ends to ensure its stability during cleaning. The electric grippers on both sides can also be alternately retracted by the first electric push rods to clean the clamped parts and avoid the problem of incomplete cleaning. At the same time, the rotating frame as a whole can also be automatically flipped by the first motor to improve the convenience of flipping the model clamped in the rotating frame during cleaning.

[0015] 2. In this utility model, the soft brush plate and spray head installed at the upper and lower ends of the fixed base can also be used to brush and spray sand removal on both ends of the model in sequence, so as to improve the sand removal effect on the model. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is another perspective view of the present invention;

[0018] Figure 3 This utility model Figure 1 A magnified view of A in the middle.

[0019] Figure label:

[0020] 100. Mounting base; 101. Control box;

[0021] 200. Fixed component; 201. Rotating shaft; 202. Rotating frame; 203. First electric push rod; 204. Electric gripper; 205. Driven gear; 206. Driving gear; 207. First motor; 208. Power supply; 209. Support rod; 210. Support groove;

[0022] 300. Sand cleaning assembly; 301. Soft brush disc; 302. Second motor; 303. Second electric actuator; 304. Nozzle; 305. Air pipe; 306. Air pump; 307. Support frame; 308. Connecting frame; 309. Third electric actuator. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0024] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a sand-cleaning device for sand mold 3D printing.

[0025] Example 1:

[0026] Combination Figure 1-3As shown, this utility model provides a sand-cleaning device for sand mold 3D printing, including: a fixed base 100, a fixed assembly 200, and a sand-cleaning assembly 300; the fixed base 100 includes a control box 101 fixedly installed on one side; the fixed assembly 200 includes a rotating shaft 201 rotatably installed inside the fixed base 100, a rotating frame 202 fixedly installed at the front end of the rotating shaft 201, first electric push rods 203 fixedly installed at both ends of the rotating frame 202, electric grippers 204 fixedly installed at the front ends of the first electric push rods 203, a driven gear 205 fixedly installed on the rotating shaft 201, and a driving gear 206 meshing with the upper end of the driven gear 205; the sand-cleaning assembly 300 includes a soft brush disc 301 movably installed on the upper part of the rotating frame 202, a second motor 302 fixedly installed on the top of the soft brush disc 301, a second electric push rod 303 fixedly installed on the top of the second motor 302, a nozzle 304 movably installed on the lower part of the rotating frame 202, and a nozzle 304 fixedly connected to one side of its bottom. The air pipe 305 and the air pump 306 are fixedly installed at the bottom of the air pipe 305. The first motor 207 is also fixedly installed on one side of the drive gear 206 and is fixed to the upper end of the fixed base 100. The power supply 208 is also fixedly installed on one side of the rotating frame 202. The first electric push rod 203 and the electric gripper 204 are electrically connected to the power supply 208. The upper and lower sides of the electric gripper 204 are fixedly installed with support rods 209. The upper and lower ends of both sides of the rotating frame 202 are provided with support grooves. 210. All support rods 209 are movably installed in the support groove 210. The outer end of the second electric push rod 303 is also fixedly installed with a support frame 307. The bottom of the nozzle 304 is also fixedly installed with a connecting frame 308. A third electric push rod 309 is also fixedly installed on one side of the connecting frame 308. The third electric push rod 309 is fixed in the fixed base 100. The second motor 302, the second electric push rod 303, the air pump 306 and the third electric push rod 309 are all electrically connected to the control box 101.

[0027] Specifically, sand mold 3D printing utilizes microdroplet jetting technology, where sand is first laid down, and then a viscous fluid is selectively jetted onto the sand surface for printing. After the sand mold 3D printing model is completed, the sand particles remaining at its outer end need to be cleaned. Multiple sets of first electric push rods 203 and electric grippers 204 are arranged and installed on the rotating frame 202 at the front of the fixed base 100. These can stably clamp the sand mold 3D printed model at both ends, ensuring its stability during cleaning. The electric grippers 204 on both sides can also be alternately retracted via the first electric push rods 203 to clean the clamped areas, avoiding incomplete cleaning. Simultaneously, the rotating frame 202 as a whole can be automatically flipped by the first motor 207, improving the convenience of flipping the model held in the rotating frame 202 during cleaning and enhancing sand removal efficiency. The soft brush disc 301 and the nozzle 304, respectively installed at the upper and lower ends of the fixed base 100, can also sequentially brush and air-jet clean the sand on both ends of the model to improve the sand removal effect. The driven gear 205 fixedly installed at the upper end of the rotating shaft 201 is mainly driven by the driving gear 206 driven by the first motor 207 to reduce the overall stable rotation of the rotating frame 202. The support rods 209 installed at the upper and lower ends of the electric gripper 204 are mainly used to ensure the stability of the electric gripper 204 in holding the model. The soft brush disc 301 can reduce the wear of the model in sand removal. The second electric push rod 303 at the upper end of the soft brush disc 301 and the third electric push rod 309 installed at the lower part of the nozzle 304 are used to adjust the movement of the soft brush disc 301 and the nozzle 304 during the rotation of the rotating frame 202, thereby avoiding obstruction of the rotation position of the rotating frame 202.

[0028] Working principle and usage process of this utility model:

[0029] Before cleaning the model, place it in the middle of the rotating frame 202. The electric grippers 204 at both ends are moved inward by the first electric push rod 203 to stably hold the model. After the model is held, the soft brush disc 301 and the nozzle 304 are moved to the upper and lower ends of the model by the second electric push rod 303 and the third electric push rod 309 at the upper and lower ends of the fixed base 100 to perform rotational cleaning and air jet sand removal on the model. While the soft brush disc 301 and the nozzle 304 are removing sand from the upper and lower ends of the model, the first electric push rods 203 on both sides of the rotating frame 202 can be controlled to alternately move the front electric grippers 204 back and forth to clean the model. After the clamping parts of the electric gripper 204 perform rotational cleaning and air-jet sand removal at the top and bottom of the model, the soft brush disc 301 and the nozzle 304 can be moved back by the second electric push rod 303 and the third electric push rod 309 to start the first motor 207. Through the driven gear 205, the driven gear 205 and the rotating frame 202 are decelerated and rotated as a whole to flip the rotating frame 202 and the model inside it. After flipping, the soft brush disc 301 and the nozzle 304 are moved again by the second electric push rod 303 and the third electric push rod 309 to perform rotational cleaning and air-jet sand removal at the top and bottom of the model after flipping.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sand cleaning device for sand-type 3D printing, characterized by, include: Fixing base (100), fixing assembly (200), sand cleaning assembly (300); The mounting base (100) includes a control box (101) fixedly mounted on one side thereon; The fixing assembly (200) includes a rotating shaft (201) rotatably mounted in a fixing base (100), a rotating frame (202) fixedly mounted at the front end of the rotating shaft (201), a first electric push rod (203) fixedly mounted at both ends of the rotating frame (202), an electric gripper (204) fixedly mounted at the front end of the first electric push rod (203), a driven gear (205) fixedly mounted on the rotating shaft (201), and a driving gear (206) meshing with the upper end of the driven gear (205). The sand cleaning assembly (300) includes a soft brush disc (301) movably mounted on the upper part of the rotating frame (202), a second motor (302) fixedly mounted on the top of the soft brush disc (301), a second electric push rod (303) fixedly mounted on the top of the second motor (302), a nozzle (304) movably mounted on the lower part of the rotating frame (202), an air pipe (305) fixedly connected to one side of the bottom of the nozzle (304), and an air pump (306) fixedly mounted on the bottom of the air pipe (305).

2. The sand cleaning device for sand type 3D printing according to claim 1, wherein, A first motor (207) is also fixedly installed on one side of the drive gear (206), and the first motor (207) is fixed to the upper end of the fixed base (100).

3. The sand cleaning device for sand type 3D printing according to claim 1, wherein, A power supply (208) is also fixedly installed on one side of the rotating frame (202), and the first electric push rod (203) and the electric gripper (204) are both electrically connected to the power supply (208).

4. The sand cleaning device for sand type 3D printing according to claim 1, wherein, The electric gripper (204) is fixedly equipped with support rods (209) on both the upper and lower sides. The rotating frame (202) has support grooves (210) arranged at both the upper and lower ends on both sides, and the support rods (209) are movably installed in the support grooves (210).

5. The sand cleaning device for sand type 3D printing according to claim 1, wherein, The second electric push rod (303) is also fixedly mounted with a support frame (307) at its outer end.

6. The sand cleaning device for sand type 3D printing according to claim 1, wherein, A connecting bracket (308) is also fixedly installed at the bottom of the nozzle (304).

7. The sand cleaning device for sand-type 3D printing according to claim 6, characterized in that, A third electric push rod (309) is also fixedly installed on one side of the connecting frame (308), and the third electric push rod (309) is fixed in the fixed base (100).

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