Sand paving guide plate of binder sand blasting type 3D printing equipment

Abstract

The utility model discloses a sand paving guide plate of binder sand blasting 3D printing equipment, which comprises a sand paving assembly, and the sand paving assembly comprises a support frame, a support cylinder, a support column, a support cross beam, a T-shaped groove, a T-shaped slide block and a sand outlet groove. According to the utility model, through the design of the V-shaped groove on the sand guide plate, sand can be more uniformly distributed and flows out through the sand outlet groove, so that the sand can be continuously and uniformly paved in the printing process, and the printing quality is improved; an output shaft is driven to rotate through a bidirectional synchronous motor, so that a gear is driven to move along a toothed plate, then an insertion plate is driven to slide in an insertion groove, the opening and closing number of sand outlet grooves is conveniently and accurately controlled through sliding of the insertion plate in the insertion groove, then the outflow amount of sand materials is controlled, and by controlling the outflow amount of the sand materials, according to the 3D printing requirement, the 3D printing efficiency is improved. And the sand paving thickness is adjusted in real time, and it is ensured that sand of each layer meets the preset requirement.

Description

Technical field:

[0001] The utility model relates to the technical field of 3D printing equipment, in particular to a sand laying guide plate for a binder jet sand mold 3D printing equipment. Background technology:

[0002] Binder jetting sand 3D printing equipment is an advanced additive manufacturing equipment specially used in the field of sand casting. This equipment builds a three-dimensional sand model by spraying a binder to bond the sand grains layer by layer. The equipment usually uses an inkjet print head, similar to a traditional 2D inkjet printer. The inkjet head accurately sprays a binder on the sand layer to bond the sand grains together to form a solid layer. After each layer is completed, the build platform will drop one layer, and then a new layer of sand will be spread, and the spraying process will be repeated until the entire model is completed. At present, binder jetting sand 3D printing technology has been widely used in the rapid manufacturing of various complex sand molds.

[0003] The existing sand-laying devices often have problems such as uneven sand distribution and difficult to control thickness during the sand-laying process. These problems will not only lead to loose bonding between printed layers, but may also cause blockages and failures during the printing process, seriously affecting the printing accuracy and stability. Therefore, a sand-laying guide plate for a binder jet sand mold 3D printing device is proposed. Utility model content:

[0004] The purpose of the utility model is to provide a sand laying guide plate for a binder jet sand mold 3D printing device to solve one of the problems raised in the above-mentioned background technology.

[0005] The utility model is implemented by the following technical scheme: a sand laying guide plate of a binder jet sand mold 3D printing device, comprising a sand laying component, wherein the sand laying component comprises a support frame, a support cylinder, a support column, a support beam, a T-shaped groove, a T-shaped slide block, a sand storage box, a sand guide plate, a V-shaped groove and a sand outlet groove;

[0006] The middle parts of both sides of the upper surface of the support frame are fixedly connected with support tubes, the inner side walls of the two support tubes are slidably connected with support columns, the tops of the two support columns are fixedly connected with support beams, the upper surface of the support beams is provided with T-shaped grooves, the inner side walls of the T-shaped grooves are slidably connected with T-shaped sliders, the bottom of the T-shaped sliders is fixedly connected with a sand storage box, the bottom of the sand storage box is fixedly connected with a sand guide plate, the upper surface of the sand guide plate is provided with a plurality of V-shaped grooves, and the inner bottom wall of the V-shaped grooves is provided with a sand outlet groove.

[0007] As a further preferred embodiment of the present technical solution: a slot is provided at the bottom of one side of the sand guide plate, a plug plate is slidably connected to the inner wall of the slot, a bidirectional synchronous motor is fixedly connected to one side of the upper surface of the plug plate, two output ends of the bidirectional synchronous motor are fixedly connected to output shafts, the ends of the outer walls of the two output shafts that are away from each other are fixedly connected to gears, the front and rear parts of the sand guide plate close to the slot are fixedly connected to support plates, a limiting slot is provided on the upper parts of the two support plates that are close to each other, a tooth plate is provided on the inner bottom wall of the limiting slot, and the outer wall of the gear is meshingly connected to the upper surface of the tooth plate.

[0008] As a further preferred embodiment of the technical solution: a slide groove is provided at the lower part of the adjacent side of the two support plates, and the outer side wall of the plug plate is slidably connected to the inner side wall of the slide groove.

[0009] As a further preferred embodiment of the technical solution: a threaded rod passes through the center of one side of the supporting beam, a threaded hole is opened on the upper part of the outer wall of the T-shaped sliding block, and the outer wall of the threaded rod is threadedly connected to the inner wall of the threaded hole.

[0010] As a further preferred embodiment of the technical solution: a servo motor is fixedly connected to the outer side of the center of one side of the supporting beam, and one side of the threaded rod is fixedly connected to the output end of the servo motor.

[0011] As a further preferred embodiment of the present technical solution: mounting holes are provided at the centers of both sides of the lower surface of the support frame, the inner walls of the two mounting holes are fixedly connected with synchronous cylinders, and the output end of the synchronous cylinder is fixedly connected to the center of the lower surface of the support column.

[0012] As a further preferred embodiment of the present technical solution: a sanding plate is fixedly connected to a side of the lower surface of the sand guide plate close to the slot.

[0013] As a further preferred embodiment of the present technical solution: a printing platform is fixedly connected to the bottom of the inner side wall of the support frame.

[0014] Advantages of the utility model:

[0015] 1. The utility model adopts the V-shaped groove design on the sand guide plate, so that the sand can be distributed more evenly and flow out through the sand outlet groove, ensuring that the laying of the sand during the printing process is continuous and uniform, thereby improving the printing quality.

[0016] 2. The utility model drives the output shaft to rotate through a bidirectional synchronous motor, thereby driving the gear to move along the toothed plate, and then driving the insert plate to slide in the slot. By sliding the insert plate in the slot, it is convenient to accurately control the opening and closing quantity of the sand outlet trough, and then control the outflow of sand. By controlling the outflow of sand, it is convenient to adjust the thickness of the sanding in real time according to the needs of 3D printing, ensuring that each layer of sand meets the preset requirements. Description of the drawings:

[0017] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a structural schematic diagram of the utility model from one perspective;

[0019] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0020] Figure 3 This is a schematic diagram of the plug board and gear structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the cutaway structure of the sand guide plate of the utility model.

[0022] In the figure: 1. Sanding assembly; 11. Support frame; 12. Support cylinder; 13. Support column; 14. Support beam; 15. T-slot; 16. T-slide block; 17. Sand storage box; 18. Sand guide plate; 19. V-slot; 20. Sand outlet trough; 21. Slot; 22. Insert plate; 23. Bidirectional synchronous motor; 24. Output shaft; 25. Gear; 26. Support plate; 27. Limiting groove; 28. Tooth plate; 29. ​​Slide; 30. Threaded rod; 31. Threaded hole; 32. Servo motor; 33. Mounting hole; 34. Synchronous cylinder; 35. Sanding plate; 36. Printing platform. Specific implementation method:

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-4 The utility model provides a technical solution: a sand-laying guide plate for a binder jet sand mold 3D printing device, comprising a sand-laying assembly 1, the sand-laying assembly 1 comprising a support frame 11, a support tube 12, a support column 13, a support crossbeam 14, a T-shaped groove 15, a T-shaped slider 16, a sand storage box 17, a sand guide plate 18, a V-shaped groove 19 and a sand outlet trough 20; the middle of both sides of the upper surface of the support frame 11 are fixedly connected with the support tube 12, the inner side walls of the two support tubes 12 are slidably connected with the support column 13, and the tops of the two support columns 13 A supporting crossbeam 14 is fixedly connected, a T-shaped groove 15 is provided on the upper surface of the supporting crossbeam 14, a T-shaped slider 16 is slidably connected to the inner side wall of the T-shaped groove 15, a sand storage box 17 is fixedly connected to the bottom of the T-shaped slider 16, a sand guide plate 18 is fixedly connected to the bottom of the sand storage box 17, a plurality of V-shaped grooves 19 are provided on the upper surface of the sand guide plate 18, a sand outlet groove 20 is provided on the inner bottom wall of the V-shaped groove 19, the sand material is guided by the plurality of V-shaped grooves 19 on the sand guide plate 18, so that the sand material can be evenly discharged through the sand outlet groove 20.

[0026] In this embodiment, specifically: a slot 21 is provided at the bottom of one side of the sand guide plate 18, and a plug plate 22 is slidably connected to the inner side wall of the slot 21, and a bidirectional synchronous motor 23 is fixedly connected to one side of the upper surface of the plug plate 22, and the two output ends of the bidirectional synchronous motor 23 are fixedly connected to the output shaft 24, and the ends of the outer side walls of the two output shafts 24 that are away from each other are fixedly connected to the gear 25, and the front and rear parts of the side of the sand guide plate 18 close to the slot 21 are fixedly connected to the support plate 26, and the two support plates 26 are close to each other. A limiting groove 27 is provided on the upper side, and a tooth plate 28 is provided on the inner bottom wall of the limiting groove 27. The outer wall of the gear 25 is meshed and connected to the upper surface of the tooth plate 28. The output shaft 24 is driven to rotate by the bidirectional synchronous motor 23, thereby driving the gear 25 to move along the tooth plate 28, and then driving the plug plate 22 to slide in the slot 21. Through the sliding of the plug plate 22, it is convenient to adjust the opening and closing number of the sand outlet trough 20. By controlling the opening and closing number of the sand outlet trough 20, it is convenient to control the sand output amount, and then it is convenient to adjust the sand laying thickness.

[0027] In this embodiment, specifically: a sliding groove 29 is opened at the lower part of the adjacent side of the two support plates 26, and the outer wall of the plug plate 22 is slidably connected to the inner wall of the sliding groove 29. The plug plate 22 slides along the sliding groove 29, thereby limiting the position of the plug plate 22 and increasing the stability of the movement of the plug plate 22.

[0028] In this embodiment, specifically: a threaded rod 30 passes through the center of one side of the supporting beam 14, a threaded hole 31 is opened on the upper part of the outer wall of the T-shaped slider 16, the outer wall of the threaded rod 30 is threadedly connected to the inner wall of the threaded hole 31, and the threaded rod 30 and the threaded hole 31 on the T-shaped slider 16 are threadedly connected, so that the T-shaped slider 16 can be driven to move by rotating the threaded rod 30.

[0029] In this embodiment, specifically: a servo motor 32 is fixedly connected to the outer side of the center of one side of the supporting beam 14, and one side of the threaded rod 30 is fixedly connected to the output end of the servo motor 32, so that the servo motor 32 can drive the threaded rod 30 to rotate.

[0030] In this embodiment, specifically: mounting holes 33 are opened at the centers of both sides of the lower surface of the support frame 11, and the inner walls of the two mounting holes 33 are fixedly connected with synchronous cylinders 34. The output end of the synchronous cylinder 34 is fixedly connected to the center of the lower surface of the support column 13. The support column 13 is pushed to move by the synchronous cylinder 34, thereby driving the support beam 14 to move, thereby facilitating the adjustment of the distance between the sand guide plate 18 and the printing platform 36.

[0031] In this embodiment, specifically: a sanding plate 35 is fixedly connected to one side of the lower surface of the sand guide plate 18 close to the slot 21, and the sanding plate 35 is used to flatten the sand material laid on the printing platform 36 and scrape off the excess sand material.

[0032] In this embodiment, specifically: a printing platform 36 is fixedly connected to the bottom of the inner wall of the support frame 11 .

[0033] Working principle or structural principle, when in use, after the equipment is started, the sand in the sand storage box 17 is guided through a plurality of V-shaped grooves 19 on the sand guide plate 18. The design of these V-shaped grooves 19 helps the sand to be more evenly distributed to the sand outlet trough 20, thereby ensuring that the sand can flow out smoothly and continuously. The output shaft 24 is driven to rotate by the bidirectional synchronous motor 23, thereby driving the gear 25 to move along the tooth plate 28, and then driving the insert plate 22 to slide in the slot 21. Through the sliding of the insert plate 22, it is convenient to adjust the opening and closing quantity of the sand outlet trough 20. By controlling the opening and closing quantity of the sand outlet trough 20, the outflow of sand is controlled, and by controlling the The outflow volume can be precisely adjusted to adjust the thickness of the sand as needed, so that different thicknesses of sand are required according to different printing layers to ensure printing quality and accuracy. The threaded rod 30 is driven to rotate by the servo motor 32, thereby driving the T-shaped slider 16 and the sand storage box 17 to move in the horizontal direction, and then driving the sand guide plate 18 to move for sand laying. The support column 13 is pushed to slide in the support tube 12 by the synchronous cylinder 34, thereby driving the support beam 14 and the sand guide plate 18 to move in the vertical direction, so as to facilitate the adjustment of the distance between the sand guide plate 18 and the printing platform 36 as needed to ensure that the sand can be evenly laid on the printing platform 36.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any 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 sand-laying guide plate for a binder jetting sand mold 3D printing device, characterized in that: The invention comprises a sand-laying assembly (1), wherein the sand-laying assembly (1) comprises a support frame (11), a support tube (12), a support column (13), a support crossbeam (14), a T-shaped groove (15), a T-shaped slide block (16), a sand storage box (17), a sand guide plate (18), a V-shaped groove (19) and a sand outlet groove (20); The middle parts of both sides of the upper surface of the support frame (11) are fixedly connected with support tubes (12), the inner side walls of the two support tubes (12) are slidably connected with support columns (13), the tops of the two support columns (13) are fixedly connected with support crossbeams (14), the upper surface of the support crossbeam (14) is provided with a T-shaped groove (15), the inner side wall of the T-shaped groove (15) is slidably connected with a T-shaped slider (16), the bottom of the T-shaped slider (16) is fixedly connected with a sand storage box (17), the bottom of the sand storage box (17) is fixedly connected with a sand guide plate (18), the upper surface of the sand guide plate (18) is provided with a plurality of V-shaped grooves (19), and the inner bottom wall of the V-shaped groove (19) is provided with a sand outlet groove (20).

2. The sand-laying guide plate of a binder jetting sand mold 3D printing device according to claim 1, characterized in that: A slot (21) is provided at the bottom of one side of the sand guide plate (18), an insert plate (22) is slidably connected to the inner side wall of the slot (21), a bidirectional synchronous motor (23) is fixedly connected to one side of the upper surface of the insert plate (22), two output ends of the bidirectional synchronous motor (23) are fixedly connected to output shafts (24), and the ends of the outer side walls of the two output shafts (24) that are away from each other are fixedly connected to gears (25), the front and rear parts of the side of the sand guide plate (18) close to the slot (21) are fixedly connected to support plates (26), and the upper parts of the two support plates (26) that are close to each other are provided with limiting grooves (27), the inner bottom wall of the limiting groove (27) is provided with a tooth plate (28), and the outer side wall of the gear (25) is meshingly connected to the upper surface of the tooth plate (28).

3. A sand laying guide plate for a binder jetting sand mold 3D printing device according to claim 2, characterized in that: A sliding groove (29) is provided at the lower part of the adjacent side of the two support plates (26), and the outer side wall of the plug plate (22) is slidably connected to the inner side wall of the sliding groove (29).

4. The sand laying guide plate of the binder jetting sand mold 3D printing equipment according to claim 1, characterized in that: A threaded rod (30) passes through the center of one side of the supporting crossbeam (14), a threaded hole (31) is provided on the upper portion of the outer wall of the T-shaped sliding block (16), and the outer wall of the threaded rod (30) is threadedly connected to the inner wall of the threaded hole (31).

5. A sand laying guide plate for a binder jetting sand mold 3D printing device according to claim 4, characterized in that: A servo motor (32) is fixedly connected to the outer side of the center of one side of the support beam (14), and one side of the threaded rod (30) is fixedly connected to the output end of the servo motor (32).

6. The sand laying guide plate of the binder jetting sand mold 3D printing equipment according to claim 1, characterized in that: Mounting holes (33) are provided at the centers of both sides of the lower surface of the support frame (11), and the inner walls of the two mounting holes (33) are fixedly connected to synchronous cylinders (34), and the output ends of the synchronous cylinders (34) are fixedly connected to the centers of the lower surfaces of the support columns (13).

7. The sand laying guide plate of the binder jetting sand mold 3D printing equipment according to claim 2, characterized in that: A sand laying plate (35) is fixedly connected to a side of the lower surface of the sand guide plate (18) close to the slot (21).

8. The sand laying guide plate of the binder jetting sand mold 3D printing equipment according to claim 1, characterized in that: A printing platform (36) is fixedly connected to the bottom of the inner side wall of the support frame (11).

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