Drum-type sand spraying machine capable of automatically recycling large-particle sand

Abstract

The utility model discloses a drum-type sand spraying machine capable of automatically recovering large-particle sand, which comprises a rack, a sand spraying cylinder, a sand filtering device, a material stirring assembly and a sand guiding assembly, a sand filtering hole unit is arranged on the sand filtering device, the sand filtering hole unit is used for filtering the large-particle sand and then spraying the sand, and the material stirring assembly is arranged on the sand guiding assembly. The material stirring assembly is used for conveying sand to the sand filtering device for sand filtering, and the sand guiding assembly is used for collecting large-particle sand filtered by the sand filtering hole unit and then guiding the large-particle sand to the outside of the sand spraying cylinder; according to the drum-type sand spraying machine capable of automatically recycling the large-particle sand, the sand is conveyed to the sand filtering hole unit for sand filtering through cooperation of the material stirring assembly and the sand filtering device, the large-particle sand filtered by the sand filtering hole unit is collected through the sand guiding assembly and then drained to the outside of the sand spraying barrel, and the manual cleaning mode is omitted; according to the sand spraying device, sand can be cleaned conveniently and efficiently while being recycled, the phenomenon of accumulation of large-particle sand is avoided, sand spraying is more uniform, and the sand spraying effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision casting processing, in particular to a drum-type sand-sprinkling machine which can automatically recycle large-grain sand materials. Background Art

[0002] Investment casting, also known as precision casting or lost wax casting, is a type of metal casting processing technology. It uses a special refractory shell to cast metal. The manufacturing process of this shell is quite unique. First, a wax mold of a specific workpiece prototype is placed in a slurry barrel for stirring and slurrying. Then, the wax mold with slurry is placed in a sand spraying machine for sand spraying. After the wax mold is dried and hardened, it is gradually formed and repeated many times until an integral shell is formed.

[0003] Most of the existing sand showering machines adopt drum type sand showering machines. During sand showering, the sand is transported to the sand inlet at a high place by the feeding device, and the sand falls from the sand inlet for sand showering. The remaining sand that leaks out will be transported to the sand inlet at a high place by the feeding device to realize circular sand showering. In the actual sand showering process, the sand will contact the wax mold after being dipped in slurry to form larger sand particles. The larger sand particles are very easy to accumulate at the sand inlet to form blockage, resulting in low sand showering efficiency. Therefore, it is necessary to manually clean the sand inlet regularly. However, manual cleaning is labor-intensive, time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to provide a drum-type sand shower machine which can automatically recycle large-particle sand materials, so as to solve the problems of high labor intensity, time-consuming and labor-intensive cleaning in the conventional manual cleaning method in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A drum-type sand-sprinkling machine capable of automatically recovering large-particle sand comprises a frame, a sand-sprinkling cylinder and a sand-guiding assembly, wherein:

[0007] The sand spraying cylinder is fixedly installed on the frame;

[0008] A material pouring cavity is provided in the sand pouring cylinder, a sand filtering device is provided in the material pouring cavity, at least one group of sand filtering hole units is provided on the sand filtering device, at least one group of sand filtering hole units is configured to filter large particles of sand material and then pour sand, a material shifting assembly is rotatably provided in the material pouring cavity, a fixed end of the material shifting assembly is installed on the sand pouring cylinder, and the material shifting assembly is used to transport the sand material to the sand filtering device for sand filtering;

[0009] The sand guiding assembly is installed on the frame and is located below the sand filtering device. The sand guiding assembly is configured to collect the large-particle sand materials filtered by the sand filtering hole unit and then drain them to the outside of the sand spraying cylinder.

[0010] Further, the sand guiding assembly includes a first collecting groove. The first collecting groove is installed below one side of the sand filtering device. The first collecting groove is configured to collect the large-particle sand materials filtered by the sand filtering hole unit.

[0011] Further, the sand guiding assembly further includes a drainage channel and a second collecting groove. The first end of the first collecting groove is higher than the second end. The drainage channel is arranged at the second end of the first collecting groove. The drainage opening of the drainage channel is arranged downward. The second collecting groove is installed on the frame and is located below the drainage opening. The drainage channel is configured to drain the large-particle sand materials collected by the first collecting groove into the second collecting groove. The second collecting groove is configured to collect the large-particle sand materials flowing out through the drainage channel.

[0012] Further, the material dialing assembly includes a plurality of material dialing members, a material dialing frame, and a material dialing driving member. The material dialing frame is rotatably installed in the material spraying cavity. The plurality of material dialing members are distributed in a circumferential array on the material dialing frame. One end of the plurality of material dialing members serves as the material dialing end. The fixed end of the material dialing driving member is installed on the sand spraying cylinder. The driving end of the material dialing driving member is connected to the material dialing frame. The material dialing driving member drives the material dialing frame to rotate, so as to drive the plurality of material dialing members to rotate, thereby conveying the sand materials to the sand filtering device.

[0013] Further, the sand filtering device is fixedly installed at the top end of the material spraying cavity. The sand filtering device adopts a vibrating screen. The fixed end of the vibrating screen is connected to the sand spraying cylinder. The sand filtering hole unit is set to two groups. The two groups of sand filtering hole units are symmetrically arranged along the length direction on the vibrating screen. Each group of sand filtering hole units includes a plurality of sand filtering holes. Under the vibration action of the vibrating screen, the sand materials flow out through the plurality of sand filtering holes for sand spraying.

[0014] Further, the vibrating screen includes a vibration driving member and a vibration disk. The vibration driving member is fixedly installed on the sand spraying cylinder through a connecting member. The driving end of the vibration driving member is connected to the vibration disk. The vibration driving member drives the vibration disk to vibrate, so as to cooperate with the plurality of sand filtering holes to filter the sand materials and then perform sand spraying.

[0015] Further, a negative pressure adsorption device is arranged on the frame. The negative pressure adsorption device extends into the sand spraying cylinder. The negative pressure adsorption device is configured to form a negative pressure at the opening of the material spraying cavity to prevent the sand materials from splashing out.

[0016] Compared with the prior art, the beneficial effects of the drum - type sand - spraying machine capable of automatically recycling large - particle sand materials are as follows: Through the cooperation of the material - distributing component and the sand - filtering device, the sand materials are conveyed to the sand - filtering hole unit for sand filtering. The sand - guiding component collects the large - particle sand materials filtered by the sand - filtering hole unit and then diverts them to the outside of the sand - spraying cylinder. The manual cleaning method is cancelled. While realizing the recycling of sand materials, convenient and efficient cleaning can be carried out, avoiding the phenomenon of large - particle sand material accumulation, making the sand - spraying more uniform and having a good sand - spraying effect. The material - distributing driving part drives the material - distributing frame to rotate, so as to drive a plurality of material - distributing parts to rotate and carry out continuous feeding, and realize multiple equal - amount feedings in a limited space. The sand - filtering device adopts a vibrating screen. Under the vibration of the vibrating screen, the sand materials flow out through a plurality of sand - filtering holes for sand - spraying. The sand - filtering effect is good and uniform sand - spraying can be realized. A negative - pressure adsorption device is added, reducing the splashing of sand materials and further avoiding the waste of sand materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the background technology and the description of the embodiments of the present invention. Obviously, the following - described accompanying drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained according to the content of the embodiments of the present invention and these accompanying drawings.

[0018] Figure 1 FIG. 1 is a three - dimensional structural schematic diagram of a drum - type sand - spraying machine capable of automatically recycling large - particle sand materials provided by an embodiment of the present invention;

[0019] Figure 2 FIG. 2 is another three - dimensional structural schematic diagram of a drum - type sand - spraying machine capable of automatically recycling large - particle sand materials provided by an embodiment of the present invention;

[0020] Figure 3 FIG. 3 is still another three - dimensional structural schematic diagram of a drum - type sand - spraying machine capable of automatically recycling large - particle sand materials provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will further illustrate the technical solutions of the present invention in conjunction with the accompanying drawings and through specific embodiments.

[0022] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer to Figures 1 to 3 As shown, in this embodiment, a drum-type sand spraying machine capable of automatically recycling large-particle sand materials includes a frame 1, a sand spraying cylinder 2, and a sand guiding assembly 3, wherein: the sand spraying cylinder 2 is fixedly installed on the frame 1; a sand spraying cavity 20 is formed in the sand spraying cylinder 2, a sand filtering device 4 is arranged in the sand spraying cavity 20, at least one group of sand filtering hole units 40 is formed on the sand filtering device 4, and at least one group of sand filtering hole units 40 is configured to filter large-particle sand materials and then spray sand. A material distributing assembly 5 is rotatably arranged in the sand spraying cavity 20, the fixed end of the material distributing assembly 5 is installed on the sand spraying cylinder 2, and the material distributing assembly 5 is used for conveying the sand materials to the sand filtering device 4 for sand filtering; the sand guiding assembly 3 is installed on the frame 1 and is located below the sand filtering device 4, and the sand guiding assembly 3 is configured to collect the large-particle sand materials filtered by the sand filtering hole units 40 and then drain them to the outside of the sand spraying cylinder 2.

[0024] It can be seen that through the cooperation of the material distributing assembly 5 and the sand filtering device 4, the sand materials are conveyed to the sand filtering hole units 40 for sand filtering. The sand guiding assembly 3 collects the large-particle sand materials filtered by the sand filtering hole units 40 and then drains them to the outside of the sand spraying cylinder 2, eliminating the manual cleaning method. While realizing the recycling of sand materials, it can also be cleaned conveniently and efficiently, avoiding the phenomenon of large-particle sand material accumulation, making the sand spraying more uniform and the sand spraying effect better.

[0025] As an implementation manner, the sand guiding assembly 3 includes a first collecting groove 30, the first collecting groove 30 is installed below one side of the sand filtering device 4, and the first collecting groove 30 is configured to collect the large-particle sand materials filtered by the sand filtering hole units 40.

[0026] As an implementation manner, the sand guiding assembly 3 further includes a drainage channel 31 and a second collection tank 32. The first end of the first collection tank 30 is set higher than the second end. The drainage channel 31 is arranged at the second end of the first collection tank 30, and the drainage opening of the drainage channel 31 is arranged downward. The second collection tank 32 is installed on the frame 1 and is located below the drainage opening. The drainage channel is configured to drain the large-particle sand materials collected by the first collection tank 30 into the second collection tank 32, and the second collection tank 32 is configured to collect the large-particle sand materials flowing out through the drainage channel 31.

[0027] As an implementation manner, the material pushing assembly 5 includes a plurality of material pushing members 50, a material pushing frame 51 and a material pushing driving member 52. The material pushing frame 51 is rotatably installed in the material spraying cavity 20. The plurality of material pushing members 50 are distributed on the material pushing frame 51 in a circumferential array. One end of the plurality of material pushing members 50 serves as the material pushing end. The fixed end of the material pushing driving member 52 is installed on the sand spraying cylinder 2, and the driving end of the material pushing driving member 52 is connected to the material pushing frame 51. The material pushing driving member 52 drives the material pushing frame 51 to rotate, so as to drive the plurality of material pushing members 50 to rotate, thereby conveying the sand materials to the sand filtering device 4.

[0028] It can be seen that the material pushing driving member 52 drives the material pushing frame 51 to rotate, so as to drive the plurality of material pushing members 50 to rotate, and perform continuous feeding, and realize multiple equal-amount feedings in a limited space.

[0029] As an implementation manner, the sand filtering device 4 is fixedly installed at the top end of the material spraying cavity 20. The sand filtering device 4 adopts a vibrating screen. The fixed end of the vibrating screen is connected to the sand spraying cylinder 2. The sand filtering hole units 40 are arranged in two groups, and the two groups of sand filtering hole units 40 are symmetrically opened on the vibrating screen along the length direction. Each group of sand filtering hole units 40 includes a plurality of sand filtering holes. Under the vibration action of the vibrating screen, the sand materials flow out through the plurality of sand filtering holes for sand spraying.

[0030] It can be seen that the sand filtering device 4 adopts a vibrating screen. Under the vibration action of the vibrating screen, the sand materials flow out through the plurality of sand filtering holes for sand spraying. The sand filtering effect is good, and uniform sand spraying can be realized.

[0031] As an implementation manner, the vibrating screen includes a vibration driving member 41 and a vibration disk 42. The vibration driving member 41 is fixedly installed on the sand spraying cylinder 2 through a connecting member. The driving end of the vibration driving member 41 is connected to the vibration disk 42. The vibration driving member 41 drives the vibration disk 42 to vibrate, so as to cooperate with the plurality of sand filtering holes to filter and spray the sand materials.

[0032] As an implementation manner, a negative pressure adsorption device 6 is arranged on the frame 1. The negative pressure adsorption device 6 extends into the sand spraying cylinder 2. The negative pressure adsorption device 6 is configured to form a negative pressure at the opening of the material spraying cavity 20 to prevent the sand materials from splashing out.

[0033] It can be seen that adding the negative pressure adsorption device 6 reduces the splashing of the abrasive material and further avoids the waste of the abrasive material.

[0034] As an implementation manner, both the material feeding driving member 52 and the vibration driving member 41 adopt driving motors.

[0035] As an implementation manner, the driving end of the material feeding driving member 52 is connected to the material feeding frame 51 through a transmission assembly. The transmission assembly includes two transmission rods 7 arranged at intervals in the horizontal direction. Both ends of each transmission rod 7 are in transmission connection with the material feeding frame 51 through friction wheels 8. The material feeding driving member 52 drives the two transmission rods 7 to rotate synchronously, so as to drive the material feeding frame 51 to rotate through the corresponding friction wheels 8.

[0036] When the above-mentioned drum-type sand spraying machine capable of automatically recycling large-particle abrasive material works: the material feeding driving member 52 drives the material feeding frame 51 to rotate, driving a plurality of material feeding members 50 to rotate. The material feeding members 50 convey the abrasive material to the sand filtering device 4. The vibration driving member 41 drives the vibration disk 42 to vibrate. Under the vibration of the vibration disk 42, the abrasive material flows out through a plurality of sand filtering holes for sand spraying. At the same time, the large-particle abrasive material flows into the first collection tank 30 on one side of the vibration disk 42 and flows into the second collection tank 32 after passing through the drainage channel 31 to complete the recycling.

[0037] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention has various changes and modifications, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A drum sand shower machine capable of automatically recovering large-particle sand, characterized in that: The drum-type sand-sprinkling machine capable of automatically recovering large-particle sand comprises a frame, a sand-sprinkling cylinder and a sand-guiding assembly, wherein: The sand spraying cylinder is fixedly mounted on the frame; A material pouring cavity is provided in the sand pouring cylinder, a sand filtering device is provided in the material pouring cavity, at least one group of sand filtering hole units is provided on the sand filtering device, at least one group of sand filtering hole units is configured to filter large particles of sand material and then pour sand, a material shifting assembly is rotatably provided in the material pouring cavity, a fixed end of the material shifting assembly is installed on the sand pouring cylinder, and the material shifting assembly is used to transport the sand material to the sand filtering device for sand filtering; The sand guiding assembly is installed on the frame and is located below the sand filtering device. The sand guiding assembly is configured to collect the large-particle sand filtered by the sand filtering hole unit and then drain it to the outside of the sand shower cylinder.

2. The drum sand shower machine capable of automatically recovering large-particle sand according to claim 1 is characterized in that: The sand guide assembly includes a first collecting trough, which is installed below one side of the sand filter device, and is configured to collect large-particle sand filtered by the sand filter hole unit.

3. The drum sand shower machine capable of automatically recovering large-particle sand according to claim 2 is characterized in that: The sand guiding assembly also includes a drainage channel and a second collecting trough, wherein the first end of the first collecting trough is arranged higher than the second end, the drainage channel is arranged at the second end of the first collecting trough, the drainage port of the drainage channel is arranged downward, the second collecting trough is installed on the frame and is located below the drainage port, the drainage channel is configured to drain the large-particle sand collected by the first collecting trough into the second collecting trough, and the second collecting trough is configured to collect the large-particle sand flowing out through the drainage channel.

4. The drum sand shower machine capable of automatically recovering large-particle sand according to claim 1, characterized in that: The material diverting assembly includes a plurality of material diverting parts, a material diverting rack and a material diverting driving part. The material diverting rack can be rotatably installed in the material sprinkling chamber. The plurality of material diverting parts are distributed on the material diverting rack in a circular array. One end of the plurality of material diverting parts serves as a material diverting end. The fixed end of the material diverting driving part is installed on the sand sprinkling cylinder. The driving end of the material diverting driving part is connected to the material diverting rack. The material diverting driving part drives the material diverting rack to rotate, thereby driving the plurality of material diverting parts to rotate, thereby transporting the sand to the sand filtering device.

5. The drum sand shower machine capable of automatically recovering large-particle sand according to claim 1, characterized in that: The sand filtering device is fixedly installed at the top of the material sprinkling chamber. The sand filtering device adopts a vibrating screen. The fixed end of the vibrating screen is connected to the sand sprinkling cylinder. The sand filtering hole units are arranged in two groups. The two groups of sand filtering hole units are symmetrically opened on the vibrating screen along the length direction. Each group of the sand filtering hole units includes a plurality of sand filtering holes. Under the vibration action of the vibrating screen, the sand flows out from the plurality of sand filtering holes for sand sprinkling.

6. The drum sand shower machine capable of automatically recovering large-particle sand according to claim 5, characterized in that: The vibrating screen includes a vibrating driving member and a vibrating plate. The vibrating driving member is fixedly mounted on the sand shower cylinder through a connecting member. The driving end of the vibrating driving member is connected to the vibrating plate. The vibrating driving member drives the vibrating plate to vibrate to cooperate with the plurality of sand filtering holes to filter the sand and then shower the sand.

7. The drum sand shower machine capable of automatically recovering large-particle sand according to claim 1, characterized in that: A negative pressure adsorption device is arranged on the frame and extends into the sand spraying cylinder. The negative pressure adsorption device is configured to form negative pressure at the opening of the spraying cavity to prevent sand from splashing out.

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