Sand mold 3D printing used sand recovery device based on hot air regeneration
By combining hot air regeneration and vibrating screening, the problem of separating lumpy old sand was solved, achieving efficient recycling and uniform particle size of old sand, and improving the recycling efficiency of old sand.
Patent Information
- Application Number
- CN202520264864.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing technologies are insufficient for efficiently separating and recycling blocky old sand generated from sand mold 3D printing, leading to clogging and wear of screening equipment and reducing the efficiency of old sand recycling.
The method of hot air regeneration combined with vibrating screening is adopted. The hot air blower heats the old sand to soften the clumps, and the vibrator drives the screening plate to vibrate. The dispersion column accelerates the dispersion of the old sand, and the screening plate separates impurities from qualified old sand.
It effectively separates impurities from old sand, ensures uniform particle size, significantly improves the efficiency of old sand recycling, and reduces technical difficulty.
Smart Images
Figure CN223718247U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a used sand recovery device, concretely is based on the sand mold 3D printing used sand recovery device of hot air regeneration, belongs to the used sand recovery technical field. BACKGROUND
[0002] Sand mold 3D printing is a kind of rapid prototyping technology mainly based on microdrop jet forming, it directly prints out sand mold or core box using three-dimensional digital model.This technology creates or imports the design file of part through CAD software, optimizes the design, and then slices three-dimensional model into multiple two-dimensional graphics.The printer lays sand according to the predetermined path layer by layer, and uses adhesive (such as resin adhesive) to fix each layer, and finally completes the sand mold or core box with arbitrary complex structure.In the sand mold 3D printing process, used sand is produced.The production of used sand is mainly due to the influence of the contour shape, quantity of printed sand core, etc., the sand in the printing work tank cannot be completely utilized to form the required sand mold core entity.Those sand particles without jetting resin adhesive are cleaned during the process of taking out the finished sand mold core, thereby becoming used sand.
[0003] The quality requirement of casting quartz sand used in sand mold 3D printing is higher, so recycling used sand and reusing can greatly reduce the cost, and currently when recycling the used sand produced in the process of sand mold 3D printing, screening separation and other technical means are usually used to realize.However, due to the effect of adhesive on used sand during printing, blocky structure is often formed, which greatly increases the difficulty of recycling, and these blocky used sand not only is difficult to effectively separate through ordinary screening equipment, but also causes clogging and wear of screen, reduces the recycling efficiency of used sand, therefore, a kind of sand mold 3D printing used sand recovery device based on hot air regeneration is proposed. CONTENT OF UTILITY MODEL
[0004] The utility model aims at providing a kind of sand mold 3D printing used sand recovery device based on hot air regeneration, to solve one of the problems proposed in the above background technique.
[0005] The utility model is implemented by the following technical solutions: a kind of sand mold 3D printing used sand recovery device based on hot air regeneration, including recovery component, the recovery component includes recovery tank, hot air machine, flow guide cover, four limit seats, screening plate, four guide columns, spring, two exciter, cloth wind board and dispersion column;
[0006] The hot air machine is installed on the upper surface of the recycling box, the flow guide cover is installed on the inner top wall of the recycling box, the air distribution plate is fixedly connected to the lower surface of the flow guide cover, the dispersion columns are uniformly fixedly connected to the lower surface of the air distribution plate, the four limiting seats are symmetrically fixedly connected to the lower surface of the screening plate, the four guide columns are symmetrically fixedly connected to the inner front wall and the inner rear wall of the recycling box, the spring sleeve is connected to the outer side wall of the guide column, the two vibration exciters are symmetrically installed on the lower surface of the screening plate, and the screening plate is obliquely arranged in the recycling box.
[0007] As a further preferred aspect of the present technical solution: the flow guide cover is communicated with the air outlet of the hot air machine through a pipeline, the dispersion columns are located above the screening plate, and the air distribution plate is arranged in parallel above the screening plate.
[0008] As a further preferred aspect of the present technical solution: the limiting seat is slidingly connected to the outer side wall of the guide column.
[0009] As a further preferred aspect of the present technical solution: one end of the spring abuts against the limiting seat, and the other end of the spring abuts against the end of the guide column.
[0010] As a further preferred aspect of the present technical solution: the upper surface of the screening plate is fixedly connected with a baffle, one side of the screening plate is fixedly connected with a waste hopper, and the end of the waste hopper is located outside the recycling box.
[0011] As a further preferred aspect of the present technical solution: the upper surface of the recycling box is provided with a recycling hopper.
[0012] As a further preferred aspect of the present technical solution: the inner bottom wall of the recycling box is slidingly connected with a storage box, and the storage box is located below the screening plate.
[0013] As a further preferred aspect of the present technical solution: the front surface of the recycling box is symmetrically provided with two sealing doors, and the positions of the sealing doors correspond to the positions of the storage box.
[0014] The present application has the following advantages: the screening plate is driven by the vibration exciter, and reciprocating vibration of the screening plate is generated under the action of the spring, so that vibration screening of the old sand is realized; the screening plate drives the old sand to contact the dispersion columns; when the dispersion columns collide with the caked old sand, the dispersion of the caked old sand is accelerated; meanwhile, the hot air machine works, the hot air flows into the flow guide cover through the pipeline, and then flows out downward through the air distribution plate; at this time, the hot air uniformly contacts the old sand, so that the caked old sand is softened and separated; the originally closely adhered sand particles are rapidly dispersed through heating by the hot air and vibration screening; not only the impurities in the old sand can be screened, but also the granularity of the recycled old sand is uniform; the technical difficulty of old sand recycling is reduced, and the recycling efficiency of the old sand is significantly improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0016] Figure 1 It is a structural schematic diagram of the present application;
[0017] Figure 2 It is a structural schematic diagram of the recycling assembly of the present application;
[0018] Figure 3 It is a structural schematic diagram of the screening plate of the present application;
[0019] Figure 4 It is a connection schematic diagram of the air distribution plate and the flow guide cover of the present application.
[0020] In the figure: 101, recycling assembly; 11, recycling box; 12, hot air blower; 13, recycling hopper; 14, flow guide cover; 15, baffle; 16, storage box; 17, waste hopper; 18, limiting seat; 19, screening plate; 20, guide column; 21, spring; 22, vibration exciter; 23, air distribution plate; 24, dispersion column; 25, sealing door. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0022] EMBODIMENT
[0023] Please refer to Figures 1-4 The present application provides a technical solution: a sand mold 3D printing old sand recycling device based on hot air regeneration, comprising a recycling assembly 101, the recycling assembly 101 is used to realize the recycling of old sand. By heating the old sand with hot air, the caked part in the old sand can be effectively softened and separated. In combination with the vibration screening, the originally closely adhered sand particles are quickly dispersed, not only the impurities in the old sand can be screened, but also the granularity of the recycled old sand is ensured to be uniform, the technical difficulty of old sand recycling is reduced, and the recycling efficiency of the old sand is significantly improved.
[0024] The recycling assembly 101 comprises a recycling box 11, a hot air machine 12, a flow guide cover 14, four limiting seats 18, a screening plate 19, four guide columns 20, springs 21, two vibration exciters 22, a wind distribution plate 23 and a dispersion column 24.
[0025] The hot air machine 12 is installed on the upper surface of the recycling box 11, and can provide heat source for the recycling device to soften the caked part in the old sand. The flow guide cover 14 is installed on the inner top wall of the recycling box 11. The wind distribution plate 23 is fixedly connected to the lower surface of the flow guide cover 14, and the wind distribution plate 23 is uniformly provided with wind distribution holes. The hot air can uniformly flow out of the wind distribution holes. The dispersion column 24 is fixedly connected to the lower surface of the wind distribution plate 23. The four limiting seats 18 are symmetrically fixedly connected to the lower surface of the screening plate 19. The four guide columns 20 are symmetrically fixedly connected to the inner front wall and the inner rear wall of the recycling box 11. The springs 21 are sleeved on the outer side wall of the guide columns 20. The two vibration exciters 22 are symmetrically installed on the lower surface of the screening plate 19, and can provide power for the vibration of the screening plate 19. The screening plate 19 is obliquely arranged in the recycling box 11, and the surface of the screening plate 19 is in a slope shape, so as to guide the old sand and realize continuous old sand recycling operation.
[0026] In this embodiment, specifically, the flow guide cover 14 is in communication with the air outlet of the hot air machine 12 through a pipeline. The dispersion column 24 is located above the screening plate 19. The wind distribution plate 23 is parallelly arranged above the screening plate 19. When the hot air machine 12 works, the hot air flows into the flow guide cover 14 through the pipeline, and then flows out through the wind distribution plate 23. At this time, the hot air uniformly contacts the old sand, so as to soften and separate the caked old sand.
[0027] In this embodiment, specifically, the limiting seat 18 is slidingly connected to the outer side wall of the guide column 20. One end of the spring 21 abuts against the limiting seat 18, and the other end of the spring 21 abuts against the end portion of the guide column 20. When the vibration exciter 22 works, the screening plate 19 is driven, the limiting seat 18 is driven by the screening plate 19, and the limiting seat 18 moves along the guide column 20 under the action of the spring 21. The screening plate 19 can produce reciprocating vibration, so as to realize vibration screening of the old sand. When the screening plate 19 is screened, the old sand is driven to contact the dispersion column 24. When the dispersion column 24 collides with the caked old sand, the dispersion of the caked old sand can be accelerated.
[0028] In this embodiment, specifically, the upper surface of the screening plate 19 is fixedly connected with a baffle 15. The baffle 15 can prevent the old sand from spilling out of the screening plate 19. One side of the screening plate 19 is fixedly connected with a waste hopper 17. The end portion of the waste hopper 17 is located outside the recycling box 11. The waste hopper 17 can discharge the impurities and the old sand which cannot be dispersed.
[0029] In the embodiment, specifically: the upper surface of the recycling box 11 is provided with a recycling hopper 13, and the inner bottom wall of the recycling box 11 is slidably connected with a storage box 16, which is located below the screening plate 19, and the qualified old sand after screening falls into the inside of the storage box 16.
[0030] In the embodiment, specifically: the front surface of the recycling box 11 is symmetrically provided with two sealing doors 25, the positions of the sealing doors 25 correspond to the position of the storage box 16, and the storage box 16 can be taken out by opening the sealing doors 25, so as to process the recycled old sand.
[0031] In use, the old sand is put into the recycling box 11 through the recycling hopper 13, and then falls onto the screening plate 19, the screening plate 19 is driven by the vibration exciter 22, and reciprocating vibration of the screening plate 19 is generated under the action of the spring 21, so as to realize vibration screening of the old sand, the screening plate 19 drives the old sand to contact with the dispersion column 24, when the dispersion column 24 collides with the caked old sand, the dispersion of the caked old sand can be accelerated, at the same time, the air heater 12 works, hot air flows into the flow guide cover 14 through the pipeline, and then flows out downward through the air distribution plate 23, at this time, the hot air uniformly contacts with the old sand, so as to soften and separate the caked old sand, the qualified old sand after screening falls into the storage box 16, and the old sand which cannot be dispersed due to impurities and caking is discharged through the waste hopper 17.
[0032] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A hot air-based regenerated sand mold 3D printing old sand recycling device, characterized in that, The application relates to a recycling device, which comprises a recycling assembly (101), a recycling box (11), a hot air blower (12), a flow guide cover (14), four limiting seats (18), a screening plate (19), four guide columns (20), springs (21), two vibration exciters (22), a wind distribution plate (23) and dispersion columns (24). The hot air blower (12) is installed on the upper surface of the recycling box (11), the flow guide cover (14) is installed on the inner top wall of the recycling box (11), the wind distribution plate (23) is fixedly connected to the lower surface of the flow guide cover (14), the dispersion columns (24) are fixedly connected to the lower surface of the wind distribution plate (23), the four limiting seats (18) are symmetrically fixedly connected to the lower surface of the screening plate (19), the four guide columns (20) are symmetrically fixedly connected to the inner front wall and the inner rear wall of the recycling box (11), the springs (21) are sleeved on the outer side wall of the guide columns (20), the two vibration exciters (22) are symmetrically installed on the lower surface of the screening plate (19), and the screening plate (19) is obliquely arranged in the recycling box (11).
2. The hot air regenerated sand mold 3D printing old sand recycling device according to claim 1, characterized in that, The flow guide cover (14) is communicated with the air outlet of the hot air blower (12) through a pipeline, the dispersion columns (24) are located above the screening plate (19), and the wind distribution plate (23) is arranged above the screening plate (19) in parallel.
3. The hot air based sand regenerative sand type 3D printing used sand recycling device according to claim 1, characterized in that, The limiting seat (18) is slidingly connected to the outer side wall of the guide column (20).
4. The hot air regenerative sand type 3D printing old sand recycling device according to claim 3, characterized in that, One end of the spring (21) abuts against the limiting seat (18), and the other end of the spring (21) abuts against the end of the guide column (20).
5. The hot air regenerated sand type 3D printing old sand recycling device according to claim 2, characterized in that, The upper surface of the screening plate (19) is fixedly connected with a baffle (15), one side of the screening plate (19) is fixedly connected with a waste hopper (17), and the end of the waste hopper (17) is located outside the recycling box (11).
6. The hot air regenerated sand type 3D printing old sand recycling device according to claim 1, characterized in that, The upper surface of the recycling box (11) is provided with a recycling hopper (13).
7. The hot air regenerated sand mold 3D printing old sand recycling device according to claim 1, characterized in that, The inner bottom wall of the recycling box (11) is slidingly connected with a storage box (16), and the storage box (16) is located below the screening plate (19).
8. The hot air regenerated sand mold 3D printing old sand recycling device according to claim 1, characterized in that, The front surface of the recycling box (11) is symmetrically provided with two sealing doors (25), and the positions of the sealing doors (25) correspond to the positions of the storage box (16).