Automatic sand cleaning device for sand accumulation in sand bed exhaust hole

Abstract

The application discloses a kind of automatic cleaning device of sand accumulation in sand mould exhaust hole, including support and second sliding frame, the top of the support is equipped with support frame, and the top of support frame is equipped with longitudinal rack, the top of the support frame is equipped with the first sliding frame compatible with the track of support frame, and the top of the first sliding frame is equipped with horizontal rack, the side of the first sliding frame is equipped with longitudinal mechanism for longitudinal displacement, the top of the horizontal rack is equipped with horizontal rack, the bottom of the horizontal rack is equipped with first sliding rail, and the outer wall of horizontal rack is equipped with second sliding frame penetrating horizontal rack, the side of the second sliding frame is equipped with fixed frame, and the inner wall of fixed frame is equipped with second sliding rail, the device stops fan and second motor continues to move downwards by PLC control system, it is convenient for operator to check, manually resets, and can continue to operate.

Description

Technical Field

[0001] This invention relates to the field of casting sand casting technology, specifically to an automatic sand cleaning device for the venting holes of a sand casting mold. Background Technology

[0002] In the sand casting industry, after sand molding, venting holes are drilled inside the mold to ensure that air stored in the sand mold can be smoothly discharged during the casting process, preventing it from affecting the quality of the casting. However, drilling venting holes in the sand mold will leave residual sand inside the holes. This residual sand mixed into the poured castings will produce some defective or scrapped products, seriously affecting the company's production efficiency and casting quality.

[0003] However, existing automatic sand cleaning devices for sand casting vent holes have the following problems during use: the traditional sand filling in the vent holes of casting sand castings is done manually. Due to the large size of the sand box, manual operation is very inconvenient, not only wastes manpower, time and effort, but also easily causes leakage, affecting product quality.

[0004] Comparing the sand mold exhaust hole cleaning device and method in application number CN 116727384 A, the XYZ moving mechanism and air blowing pipe assembly are used to move and clean residual sand. However, when the air blowing pipe is inserted into the sand mold hole, it is easy to accidentally touch it, resulting in incorrect positioning and unsatisfactory sand blowing effect. The operator cannot know the internal condition of the sand mold, which leads to cleaning failure. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic sand-cleaning device for the vent holes of sand-resistant tires, so as to solve the related problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic sand-cleaning device for the vent holes of a sand-resistant tire, comprising a bracket and a second sliding frame. A support frame is installed at the top of the bracket, and a longitudinal rack is installed at the top of the support frame. A first sliding frame adapted to a track at the support frame is provided at the top of the support frame, and a transverse platform is installed at the top of the first sliding frame. A longitudinal mechanism for longitudinal displacement is provided on one side of the first sliding frame. A transverse rack is installed at the top of the transverse platform. A first slide rail is installed at the bottom of the transverse platform, and a second sliding frame penetrating the transverse platform is provided on the outer wall of the transverse rack. A fixed frame is installed on one side of the second sliding frame, and a second slide rail is installed on the inner wall of the fixed frame. A rack frame is installed inside the second slide rail, and a PLC control system is installed at the bottom of the rack frame. An air-blowing box is installed at the bottom of the PLC control system, and an air-blowing mechanism for blowing sand is provided inside the air-blowing box. A moving mechanism for adjusting the height of the rack frame is provided inside the fixed frame, and a transverse mechanism for adjusting the transverse position is installed inside the second sliding frame.

[0007] This technical solution provides an automatic sand-cleaning device for the vent holes of a sand-resistant tire. The longitudinal mechanism includes a third motor and a fixed shaft. The third motor is installed on one side of the first sliding frame, and the output end of the third motor is connected to the fixed shaft via a coupling. The outer wall of the fixed shaft is equipped with a first gear that meshes with the outer wall of the longitudinal rack.

[0008] This technical solution provides an automatic sand-cleaning device for the vent holes of a sand-resistant tire. The moving mechanism includes a second motor and a movable frame. The second motor is installed on one side of the fixed frame, and the movable frame is installed at the output end of the second motor through a coupling. A second gear that meshes with a rack and pinion frame is installed on the outer wall of the movable frame.

[0009] This technical solution provides an automatic sand-cleaning device for the vent holes of a sand-resistant tire. The transverse mechanism includes a first motor and a mounting shaft. The first motor is provided on the rear wall of the second sliding frame, and the mounting shaft is installed at the output end of the first motor through a coupling. A third gear that meshes with the transverse rack is installed on the outer wall of the mounting shaft.

[0010] This technical solution provides an automatic sand cleaning device for the vent hole of a sand-filled tire. The air blowing mechanism includes a blower and an air blowing needle. The blower is installed inside the air blowing box, and the air blowing needle is installed at the output end of the blower. A pressure sensor is installed at the top of the air blowing box.

[0011] This technical solution provides an automatic sand-cleaning device for the vent holes of a sand-filled tire. The air-filling box is equipped with an air-filling storage tank, and a pressure sensor is installed at one end of the air-filling storage tank. A pneumatic control valve is installed at one end of the air-filling storage tank. The output terminals of the pressure sensor and the air-filling sensor are electrically connected to the input terminal of the PLC control system via wires. The output terminal of the PLC control system is electrically connected to the second motor, the pneumatic control valve, and the fan via wires.

[0012] Compared with the prior art, the present invention provides an automatic sand-cleaning device for the vent holes of sand-resistant tires, which has the following beneficial effects:

[0013] 1. This invention uses an internal blower of an activatable air blowing mechanism to blow air into the sand box containing the sand tire. If the blower touches the sand tire downwards during the blowing process, the pressure sensor will send information to the PLC control system. The PLC control system will then stop the blower and the second motor from moving downwards, allowing the operator to check and manually reset the system so that operation can continue.

[0014] 2. By setting parameters in advance, the present invention starts the third motor to drive the first gear to mesh with the longitudinal rack, so that the transverse frame moves back and forth at the longitudinal rack. In the transverse position, the first motor can be started to drive the third gear to mesh with the transverse rack, so that the second sliding frame moves left and right at the transverse frame. When it is necessary to adjust the height of the blowing mechanism, the second motor is started to drive the second gear to move with the rack frame, so that the height of the rack frame can be adjusted. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0016] Figure 2 This is a top sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the left side of the second sliding frame and the fixed frame of the present invention;

[0018] Figure 4 For the present invention Figure 2 A magnified structural diagram at point A;

[0019] Figure 5 This is a schematic diagram of the main cross-sectional structure of the air blowing mechanism and fan of the present invention.

[0020] In the diagram: 1. Bracket; 2. Longitudinal rack; 3. Transverse platform; 4. Support frame; 5. First sliding frame; 6. First motor; 7. First slide rail; 8. Second sliding frame; 9. Fixed frame; 10. Second motor; 11. Rack frame; 12. PLC control system; 13. Air blowing box; 14. Third motor; 15. Fixed shaft; 16. First gear; 17. Transverse rack; 18. Mounting shaft; 19. Third gear; 20. Second slide rail; 21. Movable frame; 22. Second gear; 23. Fan; 24. Air blowing needle; 25. Pressure sensor; 26. Air blowing storage tank; 27. Air pressure sensor. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1, such as Figure 1-2As shown, the present invention provides a technical solution: an automatic sand-cleaning device for the vent holes of a sand-resistant tire, comprising a bracket 1 and a second sliding frame 8. A support frame 4 is installed at the top of the bracket 1, and a longitudinal rack 2 is installed at the top of the support frame 4. A first sliding frame 5 adapted to the track at the support frame 4 is provided at the top of the support frame 4, and a transverse platform 3 is installed at the top of the first sliding frame 5. A longitudinal mechanism for longitudinal displacement is provided on one side of the first sliding frame 5. A transverse rack 17 is installed at the top of the transverse platform 3, and a first slide rail 7 is installed at the bottom of the transverse platform 3. The outer wall of the transverse rack 17 is provided with... A second sliding frame 8 runs through the transverse platform 3. A fixed frame 9 is installed on one side of the second sliding frame 8, and a second slide rail 20 is installed on the inner wall of the fixed frame 9. A rack frame 11 is installed inside the second slide rail 20, and a PLC control system 12 is installed at the bottom of the rack frame 11. An air blowing box 13, a blower 23, and an air blowing needle 24 are installed at the bottom of the PLC control system 12. The blower 23 is installed inside the air blowing box 13, and the air blowing needle 24 is installed at the output end of the blower 23. A pressure sensor 25 is installed at the top inside the air blowing box 13. An air storage tank 26 is provided, with a pressure sensor 27 and a pneumatic control valve at one end. The output terminals of the pressure sensor 27 and the air storage tank 26 are electrically connected to the input terminal of the PLC control system 12 via wires. The output terminal of the PLC control system 12 is electrically connected to the second motor 10, the pneumatic control valve, and the blower 23 via wires. This structure moves the sandbox to a position below the air blowing box 13 by an external cylinder. After the air blowing box 13 is inserted into the sandbox, the air storage tank 26 begins to blow air. When the set blowing pressure is reached, the air pressure sensor 27 feeds back to the PLC control system, causing the PLC control system to open the pneumatic control valve in the air storage tank 26 and blow air into the blower 23. Then, the blowing needle 24 blows air into the sand box. If the blowing needle 24 touches the sand box position downward during the blowing process, the pressure sensor 25 feeds back the information to the PLC control system 12. The PLC control system 12 then stops the blower 23 and the second motor 10 from moving downward, so that the operator can check and manually reset it to continue operation.

[0023] Example 2, as Figure 1-5As shown, the present invention provides a technical solution: an automatic sand-cleaning device for the vent holes of a sand-carrying tire, comprising a fixed frame 9 with a moving mechanism for adjusting the height of a transmission rack 11 inside, a second sliding frame 8 with a lateral mechanism for adjusting the lateral position inside, a longitudinal mechanism including a third motor 14 and a fixed shaft 15, the third motor 14 being mounted on one side of the first sliding frame 5, and the output end of the third motor 14 being mounted on the fixed shaft 15 via a coupling, the outer wall of the fixed shaft 15 being mounted with a first gear 16 meshing with the outer wall of the longitudinal rack 2, the moving mechanism including a second motor 10 and a movable frame 21, the second motor 10 being mounted on one side of the fixed frame 9, and the output end of the second motor 10 being mounted on the movable frame 21 via a coupling, the outer wall of the movable frame 21 being mounted with a second gear 16 meshing with the outer wall of the rack 11. The gear 22 and the transverse mechanism include a first motor 6 and a mounting shaft 18. The first motor 6 is installed on the rear wall of the second sliding frame 8, and the mounting shaft 18 is installed on the output end of the first motor 6 through a coupling. A third gear 19 that meshes with the transverse rack 17 is installed on the outer wall of the mounting shaft 18. By setting parameters in advance, the third motor 14 is started to drive the first gear 16 to mesh with the longitudinal rack 2, so that the transverse frame 3 moves back and forth at the longitudinal rack 2. In the transverse position, the first motor 6 can be started to drive the third gear 19 to mesh with the transverse rack 17, so that the second sliding frame 8 moves left and right at the transverse frame 3. When it is necessary to adjust the height of the air blowing box 13, the second motor 10 is started to drive the second gear 22 to move with the rack frame 11, so that the height of the rack frame 11 can be adjusted.

[0024] Working principle: First, connect the external power supply and start the external cylinder to move the sandbox to below the air blowing box 13. Then, by setting parameters in advance, start the third motor 14 to drive the first gear 16 to mesh with the longitudinal rack 2. The transverse platform 3 then moves back and forth at the longitudinal rack 2. To move laterally, start the first motor 6 to drive the third gear 19 to mesh with the transverse rack 17, causing the second sliding frame 8 to move left and right at the transverse platform 3. When the height of the air blowing box 13 needs to be adjusted, start the second motor 10 to drive the second gear 22 to move with the rack frame 11, thus adjusting the height of the rack frame 11. When the air blowing box 13 is inserted... After the sand rig is positioned in the sand box, the air storage tank 26 blows air. When the set blowing pressure is reached, the air pressure sensor 27 feeds back to the PLC control system, causing the PLC control system to open the pneumatic control valve in the air storage tank 26 and blow air into the blower 23. The air needle 24 then blows air into the sand rig in the sand box. If the air needle 24 touches the sand rig position downwards during the blowing process, the pressure sensor 25 feeds back the information to the PLC control system 12. The PLC control system 12 then stops the blower 23 and the second motor 10 from moving downwards, allowing the operator to check and manually reset the system so that operation can continue.

[0025] Furthermore, the remote video observation system, composed of a Hikvision high-definition camera, a Xiaomi mini computer host, and a TV lamp, allows the surface quality of the sand box section and air holes to be observed from the host unit along the entire production line. Regarding equipment alarm handling and safety: when an alarm occurs, manual intervention is required. After troubleshooting, operation can be restored by pressing the fault reset button on the device's control panel touchscreen. However, there is a significant risk of collision if the air blowing device is near the center of the sand box. To ensure equipment safety, the system's 1511TPLC is connected to the production equipment's Siemens 416PLC via the Siemens S7 protocol. When the Y-axis of the air blowing lifting shaft is greater than 120mm, a stop signal is sent to the production equipment's 416PLC to push the sand box. Only when the distance is less than 120mm is the sand box allowed to move.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. An automatic sand-cleaning device for the vent holes of a sand-resistant tire, comprising a support (1) and a second sliding frame (8), characterized in that: The support frame (1) is equipped with a support frame (4) at its top, and a longitudinal rack (2) is installed at the top of the support frame (4). The support frame (4) is equipped with a first sliding frame (5) that is adapted to the track at the support frame (4) at its top, and a transverse platform (3) is installed at the top of the first sliding frame (5). A longitudinal mechanism for longitudinal displacement is provided on one side of the first sliding frame (5). A transverse rack (17) is installed at the top of the transverse platform (3), and a first slide rail is installed at the bottom of the transverse platform (3). 7), and a second sliding frame (8) penetrating the transverse platform (3) is provided on the outer wall of the transverse rack (17). A fixed frame (9) is installed on one side of the second sliding frame (8), and a second slide rail (20) is installed on the inner wall of the fixed frame (9). A rack frame (11) is installed inside the second slide rail (20), and a PLC control system (12) is installed at the bottom end of the rack frame (11). An air blowing box (13) is installed at the bottom end of the PLC control system (12), and an air blowing box (13) is provided inside the air blowing box (13). The air blowing mechanism for sand blowing includes a fixed frame (9) with a moving mechanism for adjusting the height of the rack frame (11), and a lateral mechanism for adjusting the lateral position installed inside the second sliding frame (8). The air blowing mechanism includes a blower (23) and an air blowing needle (24). The blower (23) is installed inside the air blowing box (13), and the air blowing needle (24) is installed at the output end of the blower (23). A pressure sensor (25) is installed at the top of the air blowing box (13). The air-blowing box (13) is equipped with an air-blowing storage tank (26). One end of the air-blowing storage tank (26) is equipped with a pneumatic control valve, and the other end of the air-blowing storage tank (26) is equipped with a pressure sensor (27). The output ends of the pressure sensor (25) and the air-blowing pressure sensor (27) are electrically connected to the input end of the PLC control system (12) through wires. The output end of the PLC control system (12) is electrically connected to the second motor (10), the pneumatic control valve and the fan (23) through wires respectively.

2. The automatic sand-cleaning device for the vent holes of a sand-resistant tire according to claim 1, characterized in that: The longitudinal mechanism includes a third motor (14) and a fixed shaft (15). The third motor (14) is installed on one side of the first sliding frame (5), and the output end of the third motor (14) is connected to the fixed shaft (15) via a coupling. The outer wall of the fixed shaft (15) is equipped with a first gear (16) that meshes with the outer wall of the longitudinal rack (2).

3. The automatic sand-cleaning device for the vent holes of a sand-resistant tire according to claim 1, characterized in that: The moving mechanism includes a second motor (10) and a movable frame (21). The second motor (10) is installed on one side of the fixed frame (9), and the movable frame (21) is installed at the output end of the second motor (10) through a coupling. The outer wall of the movable frame (21) is equipped with a second gear (22) that meshes with the rack frame (11).

4. The automatic sand-cleaning device for the vent holes of a sand-resistant tire according to claim 1, characterized in that: The transverse mechanism includes a first motor (6) and a mounting shaft (18). The rear wall of the second sliding frame (8) is provided with the first motor (6), and the output end of the first motor (6) is mounted with the mounting shaft (18) through a coupling. The outer wall of the mounting shaft (18) is equipped with a third gear (19) that meshes with the transverse rack (17).

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