Investment casting sand filling machine

Abstract

The utility model relates to the field of investment casting, and discloses an investment casting sand filling machine which comprises a base, the top of the base is rotatably connected with a roller, the inner wall of the roller is fixedly connected with a plurality of partition plates, the rear side of the base is fixedly connected with a rear suction port, the front side of the base is fixedly connected with a front suction port, and the rear side of the front suction port is provided with a recovery assembly. An oscillating assembly is installed on the front side of the rear suction port and comprises a screen, the rear side of the screen is fixedly connected to the front side of the rear suction port, and two fixing shells are fixedly connected to the right side of the screen. According to the quartz sand screening device, the base drives the roller to rotate, the partition plates continuously turn and throw quartz sand in the roller, meanwhile, the shifting pieces are shifted, the sliding rods are driven to pull the rubber blocks to compress the first springs, and after the partition plates and the shifting pieces are disconnected, the first springs can immediately push the rubber blocks to impact the fixing shell and drive the screen to vibrate; mutually adhered quartz sand is vibrated to be scattered, and the situation that normal use is affected due to solidification and caking is avoided.

Description

Technical Field

[0001] This utility model relates to the field of investment casting, and in particular to an investment casting sand filling machine. Background Technology

[0002] Investment casting, also known as lost-wax casting, is a precision casting method mainly used to produce complex-shaped and high-precision metal parts. The process involves pouring molten metal into a mold made of high-temperature resistant material. The mold is usually formed by first creating a wax model, then covering the outer layer of the wax model with refractory material. The wax is then melted and removed by heating to form a cavity, and finally casting is performed. This method is widely used in aerospace, automotive, medical device and other fields, and can achieve the production of high-precision and complex-structured castings.

[0003] A sand filling machine is a piece of equipment used in investment casting to produce casting molds. Its working principle is to mix sand with a binder and fill it into the outer layer of the wax pattern or metal mold to form a casting shell. This shell plays a supporting and high-temperature resistance role in the investment casting process, ensuring that the mold does not deform when molten metal is poured in. Precise control of the sand filling machine can improve the strength and surface quality of the mold, reduce defects, and ensure the precision and smoothness of the final casting. This technology is particularly suitable for the manufacture of castings with complex shapes and high precision requirements, such as in the aerospace and high-end manufacturing fields.

[0004] In the field of investment casting, the commonly used sand filling machine is the sand spraying machine. Its main function is to evenly spread fine sand on the surface of the mold to form a solid sand shell. This process uses high-pressure airflow to precisely spray sand onto the surface of the model, ensuring the uniformity and density of the sand shell, thereby improving the surface quality and strength of the casting. However, during the sand spraying process, the adhesive adhering to the surface of the wax model will drip into the inside of the sand spraying machine, causing the quartz sand to clump and affecting normal use. Therefore, a sand filling machine for investment casting is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a sand filling machine for investment casting, which aims to improve the problem that during the sand filling process, the adhesive adhering to the surface of the wax pattern will drip into the sand filling machine, causing the quartz sand to clump and affecting normal use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sand filling machine for investment casting, comprising a base, a roller rotatably connected to the top of the base, a plurality of partitions fixedly connected to the inner wall of the roller, a rear suction port fixedly connected to the rear side of the base, a front suction port fixedly connected to the front side of the base, a recycling component installed behind the front suction port, and an oscillation component installed in front of the rear suction port.

[0007] The oscillation assembly includes a screen, the rear side of which is fixedly connected to the front side of the rear suction port. Two fixed shells are fixedly connected to the right side of the screen. A slide rod is slidably connected inside the fixed shell. A rubber block is fixedly connected to the left end of the slide rod. A spring is fixedly connected to the right side of the rubber block. A lever is fixedly connected to the right end of the slide rod.

[0008] As a further description of the above technical solution:

[0009] The recycling assembly includes a frame, the front side of which is fixedly connected to the rear side of the front suction port. A filter screen is fixedly connected to the inner wall of the frame, and a collection frame is slidably connected to the inner wall of the frame. A housing is fixedly connected to the left side of the frame, and an insert rod is slidably connected inside the housing. A slide plate is fixedly connected to the outside of the insert rod, and a spring is fixedly connected to the front side of the slide plate. A baffle is slidably connected inside the housing, and a limit plate is fixedly connected to the top of the housing.

[0010] As a further description of the above technical solution:

[0011] The right end of the spring is fixedly connected to the inner wall of the fixed shell, and the spring is internally sleeved on the outside of the slide rod.

[0012] As a further description of the above technical solution:

[0013] The left side of the rubber block abuts against the inner wall of the fixed shell, and the outside of the paddle abuts against the outside of the partition.

[0014] As a further description of the above technical solution:

[0015] The screen is slidably connected to the inner wall of the drum on both the front and rear sides, and the rear side of the drum is rotatably connected to the front side of the rear suction port.

[0016] As a further description of the above technical solution:

[0017] The rear side of the sleeve is fixedly connected to the top of the rear suction port, and the outer side of the slide plate is slidably connected to the inner wall of the outer shell.

[0018] As a further description of the above technical solution:

[0019] The rear end of the second spring is fixedly connected to the inner wall of the outer shell, and the second spring is internally sleeved on the outside of the insert rod.

[0020] As a further description of the above technical solution:

[0021] The front side of the baffle is slidably connected to the rear side of the limiting plate, the rear side of the baffle abuts against the front end of the insertion rod, and the bottom of the baffle abuts against the top of the sliding plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the base drives the drum to rotate, and the partition continuously tumbles and throws the quartz sand inside the drum. At the same time, the paddle is moved, which drives the slide rod to pull the rubber block to compress the spring. When the partition is disconnected from the paddle, the spring will immediately push the rubber block to hit the fixed shell, causing the screen to vibrate. This disperses the quartz sand that is stuck together, preventing it from solidifying and clumping, which would affect normal use.

[0024] 2. In this utility model, the dust generated during operation is sucked away through the rear suction port and the front suction port. At the same time, the dust is filtered by the filter screen, and the accidentally sucked-in quartz sand is intercepted. At the same time, the spring pushes the slide plate to drive the insertion rod into the collection frame, realizing the recovery of the accidentally sucked-in quartz sand. This saves costs and allows the collection frame to be quickly removed, making it convenient to take out the quartz sand in the collection frame. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an investment casting sand filling machine proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a paddle for a sand filling machine for investment casting proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the collection frame of the investment casting sand filling machine proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the insert rod of an investment casting sand filling machine proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Roller; 3. Baffle; 4. Rear suction port; 5. Front suction port; 6. Screen; 7. Fixing shell; 8. Slide rod; 9. Rubber block; 10. Spring 1; 11. Paddle; 12. Sleeve frame; 13. Filter screen; 14. Collection frame; 15. Outer shell; 16. Insert rod; 17. Slide plate; 18. Spring 2; 19. Baffle; 20. Limiting plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1- Figure 4 The present invention provides an embodiment of an investment casting sand filling machine, comprising a base 1, a roller 2 rotatably connected to the top of the base 1, a plurality of partitions 3 fixedly connected to the inner wall of the roller 2, a rear suction port 4 fixedly connected to the rear side of the base 1, and a front suction port 5 fixedly connected to the front side of the base 1. The base 1 is used to form the entire device, wherein a drive system is installed inside the base 1 to drive the roller 2 to rotate. The roller 2 is a container for holding quartz sand. The partitions 3 are used to carry the quartz sand to a high place and then throw it down to achieve sand rinsing. The rear suction port 4 and the front suction port 5 are both for dust removal. A recycling component is installed on the rear side of the front suction port 5, and an oscillation component is installed on the front side of the rear suction port 4.

[0033] The oscillating assembly includes a screen 6, which is fixedly connected to the rear side of the rear suction port 4. Two fixed housings 7 are fixedly connected to the right side of the screen 6. A sliding rod 8 is slidably connected inside the fixed housing 7. A rubber block 9 is fixedly connected to the left end of the sliding rod 8, and a spring 10 is fixedly connected to the right side of the rubber block 9. A lever 11 is fixedly connected to the right end of the sliding rod 8. The screen 6 is used to sieve quartz sand, intercepting agglomerated sand. The fixed housings 7 are for connecting and protecting internal parts. The sliding rod 8 is used to pull the rubber block 9 to move. The rubber block 9 is used to impact the fixed housing 7 while preventing damage to it. The spring 10... The rubber block 9 is reset to achieve impact. The paddle 11 is used to cooperate with the partition 3 to pull the slide rod 8 to move. The right end of the spring 10 is fixedly connected to the inner wall of the fixed shell 7. The inside of the spring 10 is sleeved on the outside of the slide rod 8 to keep the spring 10 stable. The left side of the rubber block 9 abuts against the inner wall of the fixed shell 7 to achieve impact and generate vibration. The outside of the paddle 11 abuts against the outside of the partition 3 to drive the slide rod 8 to move. The front and rear sides of the screen 6 are slidably connected to the inner wall of the roller 2 to keep the screen 6 stable. The rear side of the roller 2 is rotatably connected to the front side of the rear suction port 4 to keep the roller 2 stable.

[0034] Reference Figure 1 - Figure 4The recycling assembly includes a frame 12, with its front side fixedly connected to the rear side of the front suction port 5. A filter screen 13 is fixedly connected to the inner wall of the frame 12, and a collection frame 14 is slidably connected to the inner wall of the frame 12. A housing 15 is fixedly connected to the left side of the frame 12, and an insertion rod 16 is slidably connected inside the housing 15. A sliding plate 17 is fixedly connected to the outside of the insertion rod 16, and a spring 18 is fixedly connected to the front of the sliding plate 17. A baffle 19 is slidably connected inside the housing 15, and a limit plate 20 is fixedly connected to the top of the housing 15. The frame 12 is used to connect other parts, the filter screen 13 is used to intercept quartz sand, the collection frame 14 is used to collect quartz sand, the housing 15 is used to connect and protect the internal parts, the insertion rod 16 is used to insert into the collection frame 14 to lock the collection frame 14, and the sliding plate 17 is used to withstand the thrust from the spring 18 and drive the insertion rod 16 to move synchronously. The spring 18 is used to reset the insertion rod 16. The baffle 19 is used to block the outlet of the insertion rod 16 to prevent it from automatically resetting. The limiting plate 20 is used to limit the movement distance of the baffle 19 to prevent it from falling off. The rear side of the sleeve frame 12 is fixedly connected to the top of the rear suction port 4, so that the sleeve frame 12 and the rear suction port 4 are connected. The outer side of the slide plate 17 is slidably connected to the inner wall of the outer shell 15 to limit the movement direction of the slide plate 17. The rear end of the spring 18 is fixedly connected to the inner wall of the outer shell 15. The inner side of the spring 18 is sleeved on the outside of the insertion rod 16 to keep the spring 18 stable. The front side of the baffle 19 is slidably connected to the rear side of the limiting plate 20 to limit the movement direction of the baffle 19. The rear side of the baffle 19 and the front end of the insertion rod 16 abut against each other to block the insertion rod 16 and prevent it from resetting. The bottom of the baffle 19 and the top of the slide plate 17 abut against each other to control the falling time of the baffle 19.

[0035] Working Principle: When using this device, the wax model is inserted into the drum 2. As the drum 2 rotates, the partition 3 continuously tumbles and polishes the quartz sand. When the adhesive on the wax model drips into the inside of the drum 2, the quartz sand will stick together. With the tumbling and polishing of the partition 3, the stuck quartz sand will remain on the screen 6. At the same time, the partition 3 continuously moves the lever 11, which pulls the slide rod 8 to move the rubber block 9 synchronously and compress the spring 10. When the partition 3 is disconnected from the lever 11, the spring 10 will immediately push the rubber block 9, causing it to strike the fixed shell 7, making the screen 6 vibrate and shaking off the stuck quartz sand to avoid affecting the molding effect. During the tumbling and polishing by the partition 3, a large amount of dust is generated. Under the action of the rear suction port 4 and the front suction port 5, all this dust will be sucked away. At the same time, some quartz sand will be sucked away. Under the action of filter screen 13, the quartz sand will be intercepted and fall into collection frame 14. When the work is finished, by pulling the plug rod 16, the slide plate 17 will compress the second spring 18, so that the plug rod 16 is pulled out from the collection frame 14. At the same time, the baffle 19 will automatically fall into the outer shell 15 to block the outlet of the plug rod 16. At this time, the collection frame 14 is unlocked. Then, the collection frame 14 is pulled out from the sleeve frame 12, and the quartz sand in the collection frame 14 is poured back into the roller 2. Then, the collection frame 14 is reinserted into the sleeve frame 12. Under the limit of the limiting plate 20, the baffle 19 is pulled. At this time, the second spring 18 will immediately push the slide plate 17 to reset, and drive the plug rod 16 to re-insert into the collection frame 14 to achieve fixation. At this time, it can be used normally, effectively saving costs.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foundry sand filling machine for fused moulds, comprising a base (1), characterised in that: The base (1) top rotary connection has a drum (2), the inner wall of the drum (2) is fixedly connected with a plurality of partitions (3), the rear side of the base (1) is fixedly connected with a rear suction port (4), the front side of the base (1) is fixedly connected with a front suction port (5), the rear side of the front suction port (5) is installed with a recycling assembly, the front side of the rear suction port (4) is installed with an oscillation assembly; The oscillation assembly includes a screen (6), the screen (6) is fixedly connected to the front side of the rear suction port (4), the right side of the screen (6) is fixedly connected with two fixed shells (7), the inside of the fixed shell (7) is slidably connected with a slide rod (8), the left end of the slide rod (8) is fixedly connected with a rubber block (9), the right side of the rubber block (9) is fixedly connected with a spring one (10), the right end of the slide rod (8) is fixedly connected with a paddle (11).

2. A foundry sand filling machine according to claim 1, characterized in that: The recycling assembly includes a sleeve frame (12), the sleeve frame (12) is fixedly connected to the rear side of the front suction port (5), the inner wall of the sleeve frame (12) is fixedly connected with a filter screen (13), the inner wall of the sleeve frame (12) is slidably connected with a collection frame (14), the left side of the sleeve frame (12) is fixedly connected with an outer shell (15), the inside of the outer shell (15) is slidably connected with a plug rod (16), the outside of the plug rod (16) is fixedly connected with a sliding plate (17), the front side of the sliding plate (17) is fixedly connected with a spring two (18), the inside of the outer shell (15) is slidably connected with a baffle (19), the top of the outer shell (15) is fixedly connected with a limiting plate (20).

3. A fused mould casting sand filler machine as claimed in claim 1 wherein: The right end of the spring one (10) is fixedly connected to the inner wall of the fixed shell (7), and the spring one (10) is sleeved outside the slide rod (8).

4. A foundry sand filling machine according to claim 1, characterized in that: The left side of the rubber block (9) abuts against the inner wall of the fixed shell (7), and the outside of the paddle (11) abuts against the outside of the partition (3).

5. A foundry sand filling machine according to claim 1, characterized in that: The screen (6) is slidably connected to the inner wall of the drum (2) on the front and rear sides, and the rear side of the drum (2) is rotatably connected to the front side of the rear suction port (4).

6. A fused mould casting sand filler machine as claimed in claim 2 wherein: The sleeve frame (12) is fixedly connected to the top of the rear suction port (4), and the outside of the sliding plate (17) is slidably connected to the inner wall of the outer shell (15).

7. A fused mould casting sand filler machine as claimed in claim 2 wherein: The rear end of the spring two (18) is fixedly connected to the inner wall of the outer shell (15), and the spring two (18) is sleeved outside the plug rod (16).

8. A fused mould casting sand filler machine as claimed in claim 2 wherein: The front side of the baffle (19) is slidably connected to the rear side of the limiting plate (20), the rear side of the baffle (19) abuts against the front end of the plug rod (16), and the bottom of the baffle (19) abuts against the top of the sliding plate (17).

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