A sand cleaning mechanism for a coremaker

Abstract

The application discloses a sand cleaning mechanism for a core making machine and relates to the technical field of sand core preparation. The sand cleaning mechanism for the core making machine comprises a rack, a sand cleaning box which is arranged on the rack and can be lifted and turned over, and a driving assembly for driving the sand cleaning box to move. One end of the sand cleaning box is provided with a sand pouring opening. The opening direction of the sand pouring opening is perpendicular to the extension direction of the turning axis of the sand cleaning box. The sand cleaning mechanism has the advantages that the sand cleaning box can be horizontally received at the bottom of a sand shooting plate during the lifting process of the sand cleaning box, the butt joint precision of the sand shooting plate and the sand cleaning box is improved, and an operator can conveniently clean sand materials into the sand cleaning box. In addition, the sand cleaning box can be away from the sand shooting plate during the descending process of the sand cleaning box, so that the sand cleaning box does not interfere with the resetting of the sand shooting plate. Meanwhile, the sand cleaning box can be lifted again after the resetting of the sand shooting plate, so that the sand cleaning box can be butt jointed with a sand discharging trolley during the turning process of the sand cleaning box, and the collection effect of the sand discharging trolley on sand materials is effectively improved.

Description

Technical Field

[0001] This application relates to the field of sand core preparation, and in particular to a sand cleaning mechanism for a core making machine. Background Technology

[0002] A core-making machine is a casting equipment used to manufacture sand cores. It includes a sand-shooting cylinder, which is used to inject sand into the core box to complete the sand core casting. A removable sand-shooting plate is installed at the outlet of the sand-shooting cylinder. After the core-making machine has been running for a long time, the operator needs to clean the sand material accumulated on the sand-shooting plate to improve the subsequent sand-shooting effect.

[0003] In existing technology, a flip-up sand cleaning plate is usually installed on the frame of the core making machine. When sand cleaning is required, the sand cleaning plate is flipped up to support the sand shooting plate. Then the operator cleans the sand shooting plate. After cleaning, the sand cleaning plate is flipped down and the cleaned sand is poured into the sand discharge trolley.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: First, the sand cleaning plate cannot accurately align with the sand shooting plate when it flips over, which not only increases the difficulty of sand cleaning for operators, but also causes some sand to fall out of the sand cleaning plate; Second, there is not enough space under the sand cleaning plate to accommodate the sand discharge trolley, which prevents the sand cleaning plate from accurately aligning with the sand discharge trolley when it flips over, which greatly affects the sand collection of the sand discharge trolley. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this application provides a sand cleaning mechanism for a core making machine.

[0006] The sand-removing mechanism for a core-making machine provided in this application adopts the following technical solution: A sand-cleaning mechanism for a core-making machine, the core-making machine including a sand-shooting plate, the sand-cleaning mechanism including a frame, a sand-cleaning box that can be lifted and flipped on the frame, and a drive assembly for driving the movement of the sand-cleaning box. One end of the sand-cleaning box has a sand-pouring port, and the opening direction of the sand-pouring port is perpendicular to the extension direction of the flipping axis of the sand-cleaning box.

[0007] By adopting the above technical solution, firstly, the sand cleaning box can be horizontally supported at the bottom of the sand-shooting plate during its ascent, improving the docking accuracy between the sand-shooting plate and the sand cleaning box, making it easier for operators to clean the sand into the sand cleaning box; secondly, the sand cleaning box can move away from the sand-shooting plate during its descent to prevent the sand cleaning box from interfering with the resetting of the sand-shooting plate; finally, the sand cleaning box can rise again after the sand-shooting plate resets, so that there is enough space below it to accommodate the sand discharge trolley, making it easier for the sand cleaning box to dock with the sand discharge trolley during its flipping process, effectively improving the sand collection effect of the sand discharge trolley.

[0008] In one specific implementation, the top of the sand cleaning box has an opening for receiving the sand-shooting plate, and limit blocks are respectively provided at the peripheral corners of the opening. The peripheral side of the sand-shooting plate has multiple corner ends, and the multiple corner ends respectively abut against the multiple limit blocks.

[0009] By adopting the above technical solution, multiple limiting blocks can limit the sand-shooting plate from the periphery of the sand-shooting plate, preventing the sand-shooting plate from falling off during the sand-cleaning process.

[0010] In one specific implementation, the limiting block includes a block body and a limiting strip disposed on the block body. The limiting strip has an L-shaped limiting groove on the side facing the box opening, and the corner end is accommodated in the limiting groove.

[0011] By adopting the above technical solution, the two side walls of the limiting groove can abut against the two side walls of the corner, effectively improving the limiting effect of the limiting block on the sand-shooting plate.

[0012] In one specific implementation, the sand cleaning box further includes a plurality of baffles arranged around the periphery of the box opening, with the distance between two opposing baffles gradually decreasing from top to bottom.

[0013] By adopting the above technical solution, it is easy to put the sand-shooting plate into the sand-cleaning box and align it with the box opening.

[0014] In one specific implementation, the sand-cleaning mechanism further includes a horizontally arranged base plate, the sand-cleaning box is hinged to the base plate, and the driving assembly includes a first driving member for driving the base plate to rise and fall, and a second driving member for driving the sand-cleaning box to flip.

[0015] In one specific implementation, a horizontal machine platform is provided at the top of the frame, the base plate is located above the machine platform, and multiple guide posts are provided at the bottom of the base plate. The multiple guide posts are slidably inserted into the machine platform, and a connecting plate is provided between two adjacent guide posts.

[0016] By adopting the above technical solution, the stability of the substrate during lifting and lowering is effectively improved.

[0017] In one specific implementation, the second drive member has a body and an output end. The body is disposed at the bottom of the substrate, the substrate has a first clearance opening for the output end to pass through, and the machine base has a second clearance opening for the body to pass through.

[0018] By adopting the above technical solution, interference between the substrate and the machine tool on the driving process of the first and second driving components can be avoided.

[0019] In one specific implementation scheme, a first hinge seat is provided at the bottom of the sand cleaning box near the sand outlet, and a second hinge seat is provided at the bottom of the box away from the sand outlet. The first hinge seat is hinged to the base plate, and the second hinge seat is hinged to the output end.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. The sand cleaning box can be horizontally supported at the bottom of the sand shooting plate during its ascent, which improves the docking accuracy between the sand shooting plate and the sand cleaning box, making it easier for operators to clean the sand into the sand cleaning box; 2. The sand cleaning box can move away from the sand-shooting plate during its descent to prevent the sand cleaning box from interfering with the repositioning of the sand-shooting plate; 3. The sand cleaning box can rise again after the sand shooting plate is reset, so that there is enough space below it to accommodate the sand discharge trolley. This facilitates the sand cleaning box to dock with the sand discharge trolley during its rotation, effectively improving the sand collection effect of the sand discharge trolley. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the sand-cleaning mechanism according to an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures: 1. Frame; 1a. Machine base; 2. Sand cleaning box; 2a. Sand pouring port; 2b. Box opening; 3. Drive assembly; 3a. First drive component; 3b. Second drive component; 4. Limiting block; 4a. Block body; 4b. Limiting strip; 4c. Limiting groove; 5. Baffle; 6. Base plate; 7. Guide post; 8. Connecting plate; 9. First clearance opening; 10. Second clearance opening; 11. First hinge seat; 12. Second hinge seat; 100. Sand shooting plate; 100a. Corner end. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] See Figure 1 As shown, a sand-cleaning mechanism for a core-making machine is illustrated. The core-making machine includes a sand-shooting cylinder with a sand-shooting plate 100 at its outlet. The sand-cleaning mechanism includes a frame 1 located on the side of the core-making machine, a sand-cleaning box 2 that is liftable and rotatable and located on the frame 1, and a drive assembly 3 for driving the movement of the sand-cleaning box 2. The end of the sand-cleaning box 2 away from the core-making machine has a sand-pouring port 2a, and the opening direction of the sand-pouring port 2a is perpendicular to the extension direction of the rotation axis of the sand-cleaning box 2.

[0025] In this embodiment, the sand cleaning box 2 is arranged horizontally, and its rotation axis extends horizontally. During sand cleaning, the sand-shooting cylinder moves above the sand cleaning mechanism, and then the drive assembly 3 drives the sand cleaning box 2 to rise and connect with the sand-shooting plate 100. Then, the operator cleans the sand-shooting plate 100, and the cleaned sand is placed in the sand cleaning box 2. After cleaning, the drive assembly 3 drives the sand cleaning box 2 to fall, and the sand-shooting cylinder drives the sand-shooting plate 100 to reset. Then, the drive assembly 3 drives the sand cleaning box 2 to rise again. At this time, the sand discharge trolley moves to the lower side of the sand cleaning box 2, and the drive assembly 3 drives the sand cleaning box 2 to rotate and pour the sand into the sand discharge trolley.

[0026] Therefore, the sand cleaning mechanism of this application has the following advantages: First, the sand cleaning box 2 can be horizontally supported at the bottom of the sand-shooting plate 100 during its upward movement, which improves the docking accuracy between the sand-shooting plate 100 and the sand cleaning box 2, making it easier for operators to clean the sand into the sand cleaning box 2; Second, the sand cleaning box 2 can move away from the sand-shooting plate 100 during its downward movement, so as to prevent the sand cleaning box 2 from interfering with the reset of the sand-shooting plate 100; Third, the sand cleaning box 2 can rise again after the sand-shooting plate 100 is reset, so that there is enough space below it to accommodate the sand discharge trolley, which facilitates the docking of the sand cleaning box 2 with the sand discharge trolley during its flipping process, effectively improving the sand collection effect of the sand discharge trolley.

[0027] In this embodiment, the sand cleaning box 2 is a cuboid. An opening 2b is provided at the top of the sand cleaning box 2 to receive the sand-shooting plate 100. Limiting blocks 4 are respectively provided at the four corners of the opening 2b. The sand-shooting plate 100 has four corner ends 100a, which abut against the four limiting blocks 4. The four limiting blocks 4 can limit the sand-shooting plate 100 from its periphery, preventing it from falling off during the sand cleaning process.

[0028] Furthermore, the limiting block 4 includes a block body 4a and a limiting strip 4b disposed on the block body 4a. The limiting strip 4b has an L-shaped limiting groove 4c on the side facing the box opening 2b, and the corner end 100a is accommodated in the limiting groove 4c. The two side walls of the limiting groove 4c can abut against the two side walls of the corner end 100a, effectively improving the limiting effect of the limiting block 4 on the shot blasting plate 100.

[0029] In this embodiment, the sand cleaning box 2 also includes three baffles 5 arranged around the periphery of the box opening 2b, with the distance between two opposing baffles 5 gradually decreasing from top to bottom. Two of the three baffles 5 are located on two adjacent sides of the sand pouring opening 2a, and one is located on the opposite side of the sand pouring opening 2d. Each baffle 5 is inclined inward from top to bottom.

[0030] In this embodiment, a horizontal machine platform 1a is provided on the top of the frame 1, and the sand cleaning mechanism also includes a horizontally arranged base plate 6. The base plate 6 is located between the sand cleaning box 2 and the machine platform 1a. The top of the sand cleaning box 2 is hinged to the base plate 6. The driving component 3 includes a first driving member 3a for driving the base plate 6 to rise and fall, and a second driving member 3b for driving the sand cleaning box 2 to flip. Both the first driving member 3a and the second driving member 3b are cylinders.

[0031] The second driving component 3b has a body and an output end. The body is the cylinder body of the cylinder, and the output end is the piston rod of the cylinder. The body is located at the bottom of the base plate 6. The base plate 6 has a first clearance port 9 for the output end to pass through, and the machine tool 1a has a second clearance port 10 for the body to pass through. This can prevent the base plate 6 and the machine tool 1a from interfering with the driving process of the first driving component 3a and the second driving component 3b.

[0032] Four guide posts 7 are provided at the bottom of the base plate 6. The four guide posts 7 are slidably inserted in the machine base 1a. The four guide posts 7 are divided into two guide groups. Each guide group includes two guide posts 7 arranged along the opening direction of the sand pouring port 2a. A connecting plate 8 is provided between the two guide posts 7 constituting each guide group.

[0033] In this embodiment, the bottom of the sand cleaning box 2 near the sand pouring port 2a is provided with two first hinge seats 11, and the bottom of the bottom away from the sand pouring port 2a is provided with a second hinge seat 12. The first hinge seats 11 are hinged to the base plate 6, and the second hinge seats 12 are hinged to the output end. The arrangement direction of the two first hinge seats 11 is parallel to the extension direction of the flipping axis of the sand cleaning box 2.

[0034] The implementation principle of a sand-removing mechanism according to an embodiment of this application is as follows: During sand cleaning, the sand-shooting cylinder moves above the sand cleaning mechanism. Then, the drive assembly 3 drives the sand cleaning box 2 to rise and connect with the sand-shooting plate 100. The operator then cleans the sand-shooting plate 100, and the cleaned sand is placed in the sand cleaning box 2. After cleaning, the drive assembly 3 drives the sand cleaning box 2 to fall, and the sand-shooting cylinder drives the sand-shooting plate 100 to reset. Then, the drive assembly 3 drives the sand cleaning box 2 to rise again. At this time, the sand discharge trolley is moved to the lower side of the sand cleaning box 2, and the drive assembly 3 drives the sand cleaning box 2 to flip and pour the sand into the sand discharge trolley.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sand-cleaning mechanism for a core-making machine, the core-making machine comprising a sand-shooting plate (100), characterized in that: The sand cleaning mechanism includes a frame (1), a sand cleaning box (2) that can be lifted and flipped on the frame (1), and a drive assembly (3) for driving the movement of the sand cleaning box (2). One end of the sand cleaning box (2) has a sand pouring port (2a), and the opening direction of the sand pouring port (2a) is perpendicular to the extension direction of the flipping axis of the sand cleaning box (2).

2. The sand-cleaning mechanism for a core-making machine according to claim 1, characterized in that: The top of the sand cleaning box (2) is provided with a box opening (2b) for receiving the sand shooting plate (100). Limiting blocks (4) are respectively provided at the periphery corners of the box opening (2b). The periphery of the sand shooting plate (100) has multiple corner ends (100a), and the multiple corner ends (100a) respectively abut against the multiple limiting blocks (4).

3. The sand-cleaning mechanism for a core-making machine according to claim 2, characterized in that: The limiting block (4) includes a block body (4a) and a limiting strip (4b) disposed on the block body (4a). The limiting strip (4b) has an L-shaped limiting groove (4c) on the side facing the box opening (2b), and the corner end (100a) is accommodated in the limiting groove (4c).

4. The sand-cleaning mechanism for a core-making machine according to claim 2, characterized in that: The sand cleaning box (2) also includes a plurality of baffles (5) arranged around the periphery of the box opening (2b), and the distance between two opposing baffles (5) gradually decreases from top to bottom.

5. The sand-removing mechanism for a core-making machine according to claim 1, characterized in that: The sand cleaning mechanism also includes a horizontally arranged base plate (6), the sand cleaning box (2) is hinged to the base plate (6), and the driving component (3) includes a first driving member (3a) for driving the base plate (6) to rise and fall, and a second driving member (3b) for driving the sand cleaning box (2) to flip.

6. The sand-cleaning mechanism for a core-making machine according to claim 5, characterized in that: The top of the frame (1) is provided with a horizontal machine platform (1a), the base plate (6) is located above the machine platform (1a), and the bottom of the base plate (6) is provided with multiple guide posts (7). The multiple guide posts (7) are slidably inserted in the machine platform (1a), and a connecting plate (8) is provided between two adjacent guide posts (7).

7. The sand-removing mechanism for a core-making machine according to claim 6, characterized in that: The second drive member (3b) has a body and an output end. The body is disposed at the bottom of the substrate (6). The substrate (6) has a first clearance opening (9) for the output end to pass through. The machine base (1a) has a second clearance opening (10) for the body to pass through.

8. The sand-cleaning mechanism for a core-making machine according to claim 7, characterized in that: The sand cleaning box (2) has a first hinge seat (11) at the bottom of one end near the sand pouring port (2a) and a second hinge seat (12) at the bottom of the other end away from the sand pouring port (2a). The first hinge seat (11) is hinged to the base plate (6), and the second hinge seat (12) is hinged to the output end.

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