3D printing sand casting shell surface blowing equipment

Abstract

The utility model discloses 3DP printing sand casting shell surface blowing equipment which comprises a blowing base and a workbench. Four sets of supporting columns are vertically installed at the corners of the workbench, two sets of swing arms are installed on the side edge of the top of the workbench through two sets of rotating shaft bases, a transverse frame is installed between the two sets of swing arms, a blowing base is installed on the transverse frame, and a nozzle is installed at an output port of the blowing base. A supporting plate is installed in the center of the top of the workbench, and a sand casting shell is installed on the top of the supporting plate in a supporting mode. The utility model provides 3DP (three-dimensional printing) casting sand shell surface purging equipment, which adopts a suspension purging structure of a swing arm, completes a surface purging procedure aiming at a casting sand shell, and solves the technical problem that a purging dead angle exists in a manual purging process. And meanwhile, the technical problem that the blowing area of the casting sand shell is too large and cannot be covered can be solved by adjusting the blowing angle of the swing arm or the number of swing arm blowing devices.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and particularly relates to a surface blowing device for a 3DP printed casting sand shell. Background Technique

[0002] In the process of 3DP printing a casting sand mold, due to the mutual reaction of additives in the sand, some substances that are difficult to clean will be formed. The entire processing procedure of the 3DP printed casting sand shell includes three main stages: preliminary preparation, printing process, and post-processing. Among them, the preliminary preparation mainly includes CAD model design and sand powder preparation; the printing process includes model slicing, sand mold printing, and support structure printing; the post-processing involves removing the support structure, cleaning and treatment, pouring casting, and post-treatment of the casting. Through this series of processing procedures, the quality and efficiency of the 3DP printed casting sand shell can be ensured.

[0003] Among them, the excess sand and binder on the surface of the sand mold are cleaned to ensure the smoothness of the sand mold surface. During this process, before performing the surface treatment of the 3DP printed casting sand shell, it is first necessary to ensure the integrity and stability of the casting sand shell. This includes checking whether the casting sand shell has cracks, defects, or uncured loose sand, and performing necessary repairs and cleaning.

[0004] Therefore, before completing the cleaning process, the preliminary inspection and impurity removal process can be completed through surface blowing. This process can improve the inspection and cleaning efficiency. Therefore, according to this requirement, the present application provides a surface blowing device for a 3DP printed casting sand shell. The device adopts a suspension blowing structure of a swing arm to complete the surface blowing process for the casting sand shell, solving the technical problem of blowing dead corners existing in the manual blowing process. At the same time, adjusting the blowing angle of the swing arm or the number of swing arm blowing devices can solve the technical problem that the blowing area of the casting sand shell is too large to be covered. Summary of the Invention

[0005] To achieve the above object, the technical solution of the utility model is as follows:

[0006] A surface blowing device for a 3DP printed casting sand shell, comprising a blowing base and a workbench; four groups of support columns are vertically installed at the corners of the workbench, two groups of swing arms are installed on the top side of the workbench through two groups of rotating shaft seats, a cross frame is installed between the two groups of swing arms, the blowing base is installed on the cross frame, and a nozzle is installed at the output port of the blowing base;

[0007] A support plate is installed at the center of the top of the workbench, and a casting sand shell is supported on the top of the support plate.

[0008] Further, a reduction motor is installed along the inner side of the left rotating shaft seat of the workbench, the driving end of the reduction motor is in transmission connection with a driving gear, the driving gear is in meshing transmission with a driven gear, and the driven gear is synchronously connected with the swing arm.

[0009] Furthermore, an air supply hole is opened on the side of the horizontal frame, and the air supply pipeline extending into the air supply hole is connected to the air supply of the purge base.

[0010] Furthermore, the horizontal frame is provided with a horizontal adjustment groove, and the horizontal adjustment groove is connected to the purge base by a clamping piece.

[0011] Furthermore, the swing arm is provided with a longitudinal adjustment groove along the arm body, and the longitudinal adjustment groove is connected to the cross frame by a clamp.

[0012] Furthermore, a mounting hole is provided in the center of the support plate, and a bearing seat is installed in the mounting hole along the bottom surface of the support plate through bolts;

[0013] The inner ring of the bearing seat is inserted with a driving shaft of a servo motor, the servo motor is fixedly mounted on the bottom end surface of the workbench, and the driving shaft of the servo motor is drivingly connected to the support plate.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the prior art, the present application provides a 3DP printing casting sand shell surface purging device, which adopts a swing arm suspension purging structure to complete the surface purging process for the casting sand shell, solving the technical problem of purging dead corners during manual purging. At the same time, adjusting the swing arm purging angle or the number of swing arm purging devices can solve the technical problem that the casting sand shell purging area is too large to cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a 3DP printing casting sand shell surface blowing device of the utility model.

[0017] Figure 2 This is a schematic diagram of the swing arm structure of a 3DP printing casting sand shell surface blowing device of the utility model.

[0018] Figure 3 This is a schematic diagram of the support plate structure of a 3DP printing casting sand shell surface blowing device of the utility model.

[0019] List of Figure Symbols:

[0020] 1 is a purge base, 2 is a nozzle, 3 is a horizontal frame, 4 is a rotating shaft seat, 5 is a support plate, 6 is a bearing seat, 7 is a servo motor, 8 is a workbench, 9 is a support column, 10 is a driving gear, 11 is a driven gear, 12 is a reduction motor, 13 is a swing arm, 14 is an air supply hole, 15 is a horizontal adjustment slot, 16 is a longitudinal adjustment slot, 17 is a mounting hole, and 18 is an anti-slip hole. DETAILED DESCRIPTION

[0021] The present utility model will be further clarified below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model.

[0022] As Figure 1 、 Figure 2 and Figure 3 shown, a 3DP printing sand casting shell surface purging device includes a purging base and a workbench; four groups of support columns 9 are vertically installed at the corners of the workbench 8. Two swing arms 13 are installed on the top side of the workbench 8 through two rotating shaft seats 4. A cross frame 3 is installed between the two swing arms 13. The purging base 1 is installed on the cross frame 3. A nozzle 2 is installed at the output port of the purging base 1; a support plate 5 is installed at the center of the top of the workbench 8, and a sand casting shell is supported on the top of the support plate 5. Among them, the workbench 8 completes the building and supporting processes through the support columns 9. The sand casting shell to be purged is placed on the support plate 5, and then the purging base 1 installed on the top swing arm 13 is used to complete the surface cleaning process of the sand casting shell.

[0023] As Figure 1 、 Figure 2 and Figure 3 shown, a speed reduction motor 12 is installed along the inner side of the left rotating shaft seat 4 of the workbench 8. The driving end of the speed reduction motor 12 is in transmission connection with a driving gear 10. The driving gear 10 is in meshing transmission with a driven gear 11, and the driven gear 11 is synchronously connected with the swing arm 13. Among them, the speed reduction motor 12 can be in meshing transmission with the driven gear 11 that is synchronously connected with the swing arm 13 through the driving gear 10, and the autonomous driving process is completed through the servo control system. The technical problem of cumbersome manual operation is solved.

[0024] As Figure 1 、 Figure 2 and Figure 3 shown, an air supply hole 14 is opened on the side of the cross frame 3, and the air supply pipeline extending into the air supply hole 14 is in air supply connection with the purging base 1. Among them, the hollow air supply hole 14 inside the cross frame 3 can hide the air supply pipeline, achieving the effect of protecting the pipeline.

[0025] As Figure 1 、 Figure 2 and Figure 3 shown, a horizontal adjustment groove 15 is transversely opened on the cross frame 3, and the horizontal adjustment groove 15 is connected with the purging base 1 through a clamping member. A longitudinal adjustment groove 16 is opened along the arm body of the swing arm 13, and the longitudinal adjustment groove 16 is connected with the cross frame 3 through a clamping member. Among them, the horizontal adjustment groove 15 can be used as an adjustment structure for installing and adjusting the horizontal position of the purging base 1. And the longitudinal adjustment groove 16 is used as an adjustment structure for the longitudinal purging distance.

[0026] As Figure 1 、Figure 2 and Figure 3 As shown in Figure 3 , a mounting hole 17 is provided at the center of the pallet 5, and a bearing seat 6 is mounted on the bottom surface of the pallet 5 through bolts along the mounting hole 17; a drive shaft of a servo motor 7 is inserted into the inner ring of the bearing seat 6, the servo motor 7 is fixedly mounted on the bottom end face of the workbench 8, and the drive shaft of the servo motor 7 is in transmission connection with the pallet 5.

[0027] It should be noted that the above content only illustrates the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. A 3DP printing casting sand shell surface purging device, comprising a purging base and a workbench; its characteristics are: Four groups of support columns (9) are vertically installed at the corners of the workbench (8); two groups of swing arms (13) are installed on the top side of the workbench (8) through two groups of rotating shaft seats (4); a cross frame (3) is installed between the two groups of swing arms (13); a purge base (1) is installed on the cross frame (3); and a nozzle (2) is installed at the output port of the purge base (1); A support plate (5) is installed at the top center of the workbench (8), and a casting sand shell is supported on the top of the support plate (5).

2. A 3DP printing casting sand shell surface purging device according to claim 1, characterized in that: The workbench (8) is provided with a reduction motor (12) along the inner side of the left rotating shaft seat (4); the driving end of the reduction motor (12) is transmission-connected to the driving gear (10); the driving gear (10) is meshed with the driven gear (11) for transmission; and the driven gear (11) is synchronously connected to the swing arm (13).

3. A 3DP printing casting sand shell surface purging device according to claim 1, characterized in that: An air supply hole (14) is provided on the side of the cross frame (3), and an air supply pipeline extending into the air supply hole (14) is connected to the air supply of the purge base (1).

4. A 3DP printing casting sand shell surface purging device according to claim 3, characterized in that: The horizontal frame (3) is provided with a horizontal adjustment groove (15) in the horizontal direction, and the horizontal adjustment groove (15) is connected to the purge base (1) by means of a clamping piece.

5. The 3DP printing casting sand shell surface purging device according to claim 1 is characterized by: The swing arm (13) is provided with a longitudinal adjustment slot (16) along the arm body, and the longitudinal adjustment slot (16) is connected to the cross frame (3) by means of a clamping piece.

6. The 3DP printing casting sand shell surface purging device according to claim 1 is characterized by: A mounting hole (17) is provided at the center of the support plate (5), and a bearing seat (6) is mounted on the mounting hole (17) along the bottom surface of the support plate (5) via bolts; The inner ring of the bearing seat (6) is inserted with a drive shaft of a servo motor (7), the servo motor (7) is fixedly mounted on the bottom end surface of the workbench (8), and the drive shaft of the servo motor (7) is drivingly connected to the support plate (5).

Images