A molding machine sand box with automatic sand cleaning function

Abstract

The utility model relates to the sand box related field especially, and more particularly to a molding machine sand box with automatic sand cleaning function, including sand box body, opening, collection frame, bolt, lifting plate, sealing post, round table section, cylinder section, sand hole, spring, transmission rod, support ring and cleaning platform etc. The utility model discloses through the sand box body after rough cleaning is placed on the cleaning platform, and the transmission rod is lifted up through the cleaning platform, and the transmission rod drives the lifting plate to move up and separates with the sealing post, opens the sand hole at this moment, and makes the sand box body vibrate through the cleaning platform, thereby the residual mould sand in the sand box body is shaken off, and the mould sand that shakes off falls down and passes the sand hole and enters the collection frame, realizes the sand box automatic cleaning, and reduces the artificial work load, improves the work efficiency, and the mould sand that shakes off is collected by the collection frame, reduces the subsequent cleaning work load, reduces the environmental pollution, is favorable for improving the practicality of sand box.

Description

Technical Field

[0001] This utility model relates to the field of sand boxes, and in particular to a molding machine sand box with an automatic sand cleaning function. Background Technology

[0002] The molding sand box is a container used in conjunction with the molding machine in casting production. It is mainly used to hold and fix the molding sand. The molding machine uses methods such as compaction and vibration to form the molding sand into a sand mold cavity. At the same time, the sand box provides support and protection for the sand mold, facilitates the handling, assembly, and pouring of molten metal, and prevents the sand mold from collapsing or deforming during the pouring process, thus ensuring the shape accuracy of the casting. After the sand mold is used in the sand box, it usually needs to be discharged before the next batch of molding sand is filled into the sand box. However, due to the characteristics of molding sand, some molding sand is easy to remain in the sand box. In order not to affect the filling and compaction effect of subsequent molding sand, it is usually necessary to clean the residual molding sand in the sand box.

[0003] Currently, the cleaning of casting sand boxes mostly relies on manual shoveling or air gun blowing, which is inefficient and labor-intensive. This is especially true when cleaning residual molding sand inside the sand box, where the efficiency is particularly low and incomplete cleaning is likely to occur. Residual sand in the sand box can affect the positioning accuracy and sealing of the next sand box. In addition, residual sand can easily scatter in the workshop during the sand cleaning process, polluting the environment, increasing the workload of subsequent cleaning, and reducing the practicality of the sand box. Summary of the Invention

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a molding machine sand box with automatic sand cleaning function to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sand box for a molding machine with automatic sand cleaning function, comprising a sand box body, an opening, a collection frame, bolts, a lifting plate, a sealing column, a sand discharge hole, a spring, and a transmission rod; the opening is located at the bottom of the front end face of the sand box body; The collection frame is movably inserted into the opening and is fixed in the opening by bolts. The inner ring of the collection frame is flush with the inner ring of the sand box body. The collection frame is used to collect the molding sand remaining in the sand box body. The lifting plate is movably installed inside the collection frame, and there is a gap between the bottom end face of the lifting plate and the inner bottom of the collection frame. Two or more sealing columns are installed on the inner bottom of the collection frame, the upper end of the sealing column is tightly inserted into the sand discharge hole opened on the lifting plate, and at least one sealing column is fitted with a spring. The bottom surface of the lifting plate is provided with several transmission rods, which movably pass through the bottom surface of the collection frame. The two ends of the spring are respectively connected to the bottom end face of the lifting plate and the inner bottom wall of the collection frame; The bottom of the sand box body is equipped with a detachable cleaning platform.

[0006] Preferably, the vibration table includes a vibration table disposed at the bottom of the sand box body and a vibration motor installed inside the vibration table. The vibration table and the sand box body are separable. A positioning groove is provided on the top surface of the vibration table. The inner side of the positioning groove is in contact with the outer bottom of the sand box body. Several top rods are installed in the positioning groove, and the several top rods and several transmission rods correspond one-to-one.

[0007] Preferably, the length of the top rod is greater than the thickness of the lifting plate, and the outer diameter of the top rod is the same as that of the transmission rod.

[0008] Preferably, a support ring is installed on the inner wall of the collection frame, and when the spring is in its natural state, the top surface of the support ring is in contact with the bottom surface of the lifting plate.

[0009] Preferably, the sealing column includes a frustum section installed at the bottom of the inner side of the collection frame and a cylindrical section set on the top surface of the frustum section. The top outer side of the frustum section is in contact with the bottom surface of the lifting plate, and the frustum section has a structure that is smaller at the top and larger at the bottom. The cylindrical section extends movably into the sand discharge hole, and when the spring is in its natural state, the top surface of the cylindrical section is flush with the top surface of the lifting plate.

[0010] The beneficial effects of this utility model are: This invention involves placing the pre-cleaned sand box body on a cleaning platform. The cleaning platform then lifts a transmission rod upwards, causing the lifting plate to move upwards and separate from the sealing column. At this point, the sand discharge hole is opened, and the cleaning platform causes the sand box body to vibrate, thereby shaking off the residual molding sand inside the sand box. The shaken-off molding sand falls downwards through the sand discharge hole and enters the collection frame, achieving automatic cleaning of the sand box, reducing manual workload, improving work efficiency, and collecting the shaken-off molding sand in the collection frame, reducing subsequent cleaning workload, reducing environmental pollution, and improving the practicality of the sand box. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the sand box structure of this utility model; Figure 2 This is a front view cross-sectional structural diagram of the sand box of this utility model; Figure 3 This is a schematic diagram of the transmission rod in the lifted state of this utility model; Figure 4 This is a top view schematic diagram of the sand box structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the sand box of this utility model.

[0012] The components include: sand box body-1, opening-2, collection frame-3, bolt-4, lifting plate-5, sealing column-6, frustum section-61, cylindrical section-62, sand discharge hole-7, spring-8, transmission rod-9, support ring-10, vibration table-11, top rod-12, positioning groove-13, and vibration motor-14. Detailed Implementation

[0013] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0014] like Figures 1 to 5 As shown, this utility model provides a sand box for a molding machine with automatic sand cleaning function, including a sand box body 1, an opening 2, a collection frame 3, bolts 4, a lifting plate 5, a sealing column 6, a sand discharge hole 7, a spring 8, and a transmission rod 9; the opening 2 is located at the bottom of the front end face of the sand box body 1. The collection frame 3 is inserted into the opening 2 and is locked and fixed in the opening 2 by two or more bolts 4, so that the collection frame 3 can be rotated and the collected molding sand can be taken out by rotating and disassembling the bolts 4. The inner ring of the collection frame 3 is flush with the inner ring of the sand box body 1. The collection frame 3 is used to collect the molding sand remaining in the sand box body 1. The lifting plate 5 is movably installed inside the collection frame 3. The lifting plate 5 can move up and down along the inner side of the collection frame 3, and there is a gap between the bottom end face of the lifting plate 5 and the bottom inner side of the collection frame 3 so that the collection frame 3 can collect residual molding sand. Two or more sealing columns 6 are installed on the inner bottom of the collection frame 3. The upper end of the sealing column 6 is tightly inserted into the sand discharge hole 7 opened on the top surface of the lifting plate 5, and at least one sealing column 6 is fitted with a spring 8. Two transmission rods 9 are provided on the bottom end face of the lifting plate 5. The transmission rods 9 vertically and movably pass through the bottom end face of the collection frame 3. The two ends of the spring 8 are respectively connected to the bottom end face of the lifting plate 5 and the inner bottom wall of the collection frame 3; The bottom of the sand box body 1 is equipped with a detachable cleaning platform; In this embodiment, the vibration table includes a vibration table 11, a top rod 12, a positioning groove 13, and a vibration motor 14. The vibration table 11 is located at the bottom of the sand box body 1. The vibration table 11 and the sand box body 1 are separable. The positioning groove 13 is located in the middle of the top surface of the vibration table 11. Several top rods 12 are installed in the positioning groove 13. The inner side of the positioning groove 13 is in contact with the outer bottom of the sand box body 1. Several top rods 12 and several transmission rods 9 correspond one-to-one. The top rods 12 push the transmission rods 9 upward. The vibration motor 14 is installed in the vibration table 11. In this embodiment, the length of the top rod 12 is greater than the thickness of the lifting plate 5, and the outer diameter of the top rod 12 is the same as that of the transmission rod 9, which makes it convenient for the top rod 12 to stably lift the transmission rod 9 upward, and at the same time makes it convenient for the top rod 12 to completely lift the lifting plate 5 upward and separate it from the sealing column 6. In this embodiment, a support ring 10 is installed on the inner wall of the collection frame 3. When the spring 8 is in its natural state, the top surface of the support ring 10 is in contact with the bottom surface of the lifting plate 5. The support ring 10 provides support for the lifting plate 5, thereby improving the stability of the lifting plate 5. In this embodiment, the sealing column 6 includes a frustum section 61 and a cylindrical section 62. The frustum section 61 is installed at the bottom of the inner side of the collection frame 3. The cylindrical section 62 is an integrated structure set on the top surface of the frustum section 61. The outer top of the frustum section 61 is in contact with the bottom surface of the lifting plate 5. The frustum section 61 has a structure that is smaller at the top and larger at the bottom. The cylindrical section 62 extends into the sand discharge hole 7. When the spring 8 is in its natural state, the top surface of the cylindrical section 62 is flush with the top surface of the lifting plate 5. Specifically, the sand box body 1 is placed on the molding machine, and molding sand is filled into the sand box body 1. The molding machine compacts and vibrates the molding sand to make it compacted. Then the sand box body 1 can be removed, and molten metal is injected into the sand mold inside the sand box body 1. The molten metal cools into a part, and the sand mold inside the sand box body 1 is taken out. The sand mold is then broken and the part is taken out. Then, the molding sand inside the sand box body 1 is cleaned by inverting and blowing with an air gun to perform a rough cleaning of the inside of the sand box body 1. Then, the sand box body 1 is placed in the positioning groove 13 on the vibration table 11. At this time, the top rod 12 squeezes the transmission rod 9. The transmission rod 9 is pressured and drives the lifting plate 5 to move upward and separate from the sealing column 6. At this time, the sand discharge hole 7 is opened, and the spring 8 is elastically stretched by the tension of the lifting plate 5. Then, the vibration motor 14 is started to make the sand box body 1 vibrate. The molding sand remaining in the sand box body 1 is shaken off. The fallen molding sand passes through the sand discharge hole 7 and is collected in the collection frame 3, thus completing the automatic cleaning work inside the sand box body 1. After cleaning, the sand box body 1 is removed, and the lifting plate 5 is moved downward and reset by the elastic force of the spring 8, so that molding sand can be filled into the sand box body 1 again for use.

[0015] The above description is merely 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 molding machine sand box with automatic sand cleaning function, comprising a sand box body; Its features are, Also includes: The opening is located on the bottom outer side of the sandbox body; The collection frame is movable and inserted into the opening. The collection frame is used to collect the molding sand remaining in the sand box body. The lifting plate is movably installed inside the collection frame, and there is a gap between the bottom end of the lifting plate and the bottom inner side of the collection frame; Two or more sealing columns are installed on the inner bottom of the collection frame. The upper end of the sealing column extends tightly into the sand discharge hole opened on the lifting plate, and at least one sealing column is fitted with a spring. The bottom surface of the lifting plate is provided with several transmission rods, which movably pass through the bottom surface of the collection frame. The two ends of the spring are respectively connected to the bottom end face of the lifting plate and the inner bottom wall of the collection frame; The bottom of the sand box body is provided with a detachable cleaning platform, and the vibration table is used to lift the transmission rod upward and make the sand box body vibrate.

2. The molding machine sand box with automatic sand cleaning function according to claim 1, characterized in that: The vibration table includes a vibration table set at the bottom of the sand box body and a vibration motor installed inside the vibration table. The vibration table and the sand box body are separable. A positioning groove is opened on the top surface of the vibration table. The inner side of the positioning groove is in contact with the outer bottom of the sand box body. Several top rods are installed in the positioning groove, and several top rods and several transmission rods correspond one-to-one.

3. The molding machine sand box with automatic sand cleaning function according to claim 2, characterized in that: The length of the top rod is greater than the thickness of the lifting plate.

4. The molding machine sand box with automatic sand cleaning function according to claim 1, characterized in that: The collection frame is fixed inside the opening by bolts.

5. The molding machine sand box with automatic sand cleaning function according to claim 1, characterized in that: The inner wall of the collection frame is equipped with a support ring. When the spring is in its natural state, the top surface of the support ring is in contact with the bottom surface of the lifting plate.

6. The molding machine sand box with automatic sand cleaning function according to claim 1, characterized in that: The sealing column includes a frustum section installed at the bottom of the inner side of the collection frame and a cylindrical section set on the top surface of the frustum section. The top outer side of the frustum section is in contact with the bottom surface of the lifting plate. The frustum section has a structure that is smaller at the top and larger at the bottom. The cylindrical section extends into the sand discharge hole. When the spring is in its natural state, the top surface of the cylindrical section is flush with the top surface of the lifting plate.

7. A molding machine sand box with automatic sand cleaning function according to claim 1, characterized in that... The inner ring of the collection frame is flush with the inner ring of the sand box body.

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