A coating device for castings of internal combustion engines

Abstract

This utility model discloses a coating device for castings used in internal combustion engines, including a coating box. A movable base is located at the bottom of the coating box, and a rotating ring is rotatably connected to the movable base. The top of the rotating ring extends out of the movable base and is fixedly mounted on the rotating base. A recovery trough and a drive trough are arranged sequentially from top to bottom inside the rotating base. A geared disc is located in the drive trough, and multiple transmission gears are meshed with the outer side of the geared disc. Rotating rods are fixedly mounted on the tops of the multiple transmission gears, and the tops of the multiple rotating rods extend out of the top of the rotating base and are fixedly mounted on a fixing frame. A bidirectional screw is rotatably connected to each fixing frame. This coating device for castings used in internal combustion engines can perform coating operations on multiple castings at once, thereby further improving the processing efficiency of casting coating. Simultaneously, the movable base and rotating base can extend out of the coating box during use, facilitating the loading and unloading of castings, thus further improving the ease of use of this equipment.

Description

Technical Field

[0001] This utility model relates to the field of casting coating technology, specifically a casting coating device for internal combustion engines. Background Technology

[0002] Internal combustion engine castings refer to various metal parts manufactured through casting processes during the production of internal combustion engines. These parts are typically made by pouring molten metal into a mold that conforms to the shape of the part. After cooling, they undergo subsequent processing such as grinding to ultimately obtain objects with specific shapes, dimensions, and properties. In casting production, to improve the surface quality of castings, it is usually necessary to spray anti-stick coatings or heat-insulating protective coatings onto the casting molds to improve their surface heat resistance, chemical stability, resistance to molten metal slag erosion, demolding properties, or anti-sand adhesion.

[0003] A search revealed that patent application CN202121314877.X discloses a coating device for castings used in internal combustion engines. However, this patent has shortcomings. In practical use, this coating device can only coat a single casting at a time, resulting in a long overall coating time and low efficiency, making it unsuitable for batch coating of castings. Therefore, we propose a coating device for castings used in internal combustion engines. Utility Model Content

[0004] The purpose of this invention is to provide a coating device for castings used in internal combustion engines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coating device for castings used in internal combustion engines, comprising a coating box, a movable seat provided at the bottom of the coating box, a rotating ring rotatably connected inside the movable seat, the top end of the rotating ring extending out of the movable seat and fixedly mounted on the rotating seat, a recovery groove and a drive groove arranged sequentially from top to bottom inside the rotating seat, a geared disc provided inside the drive groove, multiple transmission gears meshing with the outer side of the geared disc, a rotating rod fixedly mounted at the top end of each of the multiple transmission gears 13, and a rotating rod extending out of the top end of each of the multiple rotating rods. A fixed frame is fixedly installed at the top of the base. A bidirectional screw is rotatably connected inside each fixed frame. Two grippers are threaded onto each bidirectional screw. The bottom end of the rotating ring extends into the movable base and is fixedly installed with a gear ring. A drive gear is meshed with the right side of the gear ring. A column is fixedly installed at the bottom end of the gear plate. The bottom end of the column extends out of the rotating base and is fixedly installed at the bottom end inside the movable base. Spray holders are fixedly installed on both sides inside the spray box. Multiple nozzles are fixedly installed on the side of each of the two spray holders that are close to each other. A delivery pump is fixedly installed at the top of the spray box.

[0006] Optionally, a diversion channel is provided in the inner wall of the top of the spray box, and a conveying channel is provided on the side of each of the two diversion channels that is far away from each other. The ends of the two conveying channels that are far away from the diversion channels are respectively connected to the corresponding spray bases. The protective coating is conveniently conveyed to the two spray bases through the diversion channels and the conveying channels.

[0007] Optionally, the bidirectional screw is provided with two opposing threads, and the two grippers are respectively sleeved on the two threads. This design is beneficial to the use of the equipment.

[0008] Optionally, a positioning plate is fixedly installed on the side of each of the multiple fixing frames near the recycling tank, and a handle is fixedly installed on the end of each of the multiple bidirectional screws near the recycling tank. A positioning bolt is threaded onto each of the multiple handles, and the output end of the positioning bolt extends into the positioning plate. The handle can be locked and fixed by the positioning bolt.

[0009] Optionally, slides are fixedly installed on both sides of the movable seat, and a sliding groove is provided in the spray box corresponding to the two slides. A cylinder is fixedly installed at the front end of each of the two sliding grooves, and the output ends of the two cylinders are fixedly installed on the slides. The retraction of the output ends of the cylinders facilitates the sliding of the slides and the movable seat forward.

[0010] Optionally, a motor is fixedly installed at the bottom of the movable base directly below the drive gear, and the output end of the motor is fixedly installed on the drive gear. The motor drives the drive gear to rotate, which is beneficial to the use of this equipment.

[0011] Optionally, a discharge trough is provided inside the rotating seat at the left front end of the recycling tank. A sealing cap is threaded into the discharge trough, through which the recycled protective coating can be removed. (Optional)

[0012] Optionally, the front end of the spray box is slidably connected to a door on the upper part of the movable base, which facilitates the loading and unloading of castings by opening the door.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Through the coordinated operation of the rotating seat, moving seat, fixed frame, transmission gear, rotating ring, gear ring, gear disc, column, drive gear, motor, rotating rod, double-acting screw, gripper, cylinder, slide, positioning bolt, positioning plate, and screw handle, multiple castings can be sprayed at once, thereby further improving the processing efficiency of casting spraying. At the same time, the moving seat and rotating seat can be extended outside the spraying box during use, making it convenient to pick up and put down castings, thus further improving the ease of use of this equipment. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of a coating device for castings used in internal combustion engines according to this utility model.

[0016] Figure 2 This is a cross-sectional view of a coating device for castings used in internal combustion engines according to this utility model.

[0017] Figure 3 This is a cross-sectional view of the discharge trough in a casting spraying device for internal combustion engines according to this utility model;

[0018] Figure 4 This is a cross-sectional view of the cylinder in a casting spraying device for internal combustion engines according to this utility model;

[0019] Figure 5 This utility model relates to a coating device for castings used in internal combustion engines. Figure 2 A magnified view of A in the middle.

[0020] In the diagram: 1. Spraying box; 2. Moving seat; 3. Rotating seat; 4. Box door; 5. Conveying pump; 6. Diverting trough; 7. Conveying trough; 8. Nozzle; 9. Spray base; 10. Recycling trough; 11. Drive trough; 12. Fixed frame; 13. Transmission gear; 14. Rotating ring; 15. Gear ring; 16. Gear disc; 17. Column; 18. Drive gear; 19. Motor; 20. Rotating rod; 21. Bidirectional screw; 22. Clamp; 23. Discharge trough; 24. Sealing cover; 25. Cylinder; 26. Slide; 27. Positioning bolt; 28. Positioning plate; 29. ​​Tightening handle; 30. Slide. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 5This utility model provides a coating device for castings used in internal combustion engines, including a coating box 1. A movable base 2 is located at the bottom of the coating box 1. A rotating ring 14 is rotatably connected inside the movable base 2. The top end of the rotating ring 14 extends out of the movable base 2 and is fixedly mounted on a rotating base 3. A recovery trough 10 and a drive trough 11 are arranged sequentially from top to bottom inside the rotating base 3. A geared disc 16 is arranged inside the drive trough 11. Multiple transmission gears 13 are meshed with the outer side of the geared disc 16. A rotating rod 20 is fixedly mounted on the top end of each of the multiple transmission gears 13. The top ends of the multiple rotating rods 20 extend out of the top end of the rotating base 3 and are fixedly mounted on... The fixed frame 12 has a bidirectional screw 21 rotatably connected inside each fixed frame 12. Each bidirectional screw 21 has two grippers 22 threaded on it. The bottom end of the rotating ring 14 extends into the movable seat 2 and is fixedly installed with a gear ring 15. The right side of the gear ring 15 is meshed with a drive gear 18. The bottom end of the gear plate 16 is fixedly installed with a column 17. The bottom end of the column 17 extends out of the rotating seat 3 and is fixedly installed inside the bottom end of the movable seat 2. Sprayers 9 are fixedly installed on both sides inside the spray box 1. Multiple nozzles 8 are fixedly installed on the side of the two sprayers 9 that are close to each other. A delivery pump 5 is fixedly installed at the top of the spray box 1.

[0023] A diversion channel 6 is provided in the inner wall of the top of the spray box 1. Two diversion channels 6 are each provided with a conveying channel 7 on the side furthest from each other. The ends of the two conveying channels 7 furthest from the diversion channels 6 are respectively connected to the corresponding spray base 9. The diversion channels 6 and conveying channels 7 facilitate the delivery of protective coating to the two spray bases 9. The bidirectional screw 21 has two opposing threads, and two clamps 22 are respectively fitted onto the two threads. This design facilitates the use of the equipment. Multiple fixed brackets 12 are fixedly installed with positioning plates 28 on the side near the recovery tank 10. The ends of multiple bidirectional screws 21 near the recovery tank 10 extend out of the positioning plates 28 and are fixedly installed with handles 29. Each handle 29 is threaded with a positioning bolt 27. The output end of the positioning bolt 27 extends into the positioning plate 28, and the positioning bolt 27 can lock and fix the handle 29. The two movable seats 2... Each side is fixedly equipped with a slide block 26. Inside the spray box 1, there is a slide groove 30 corresponding to each of the two slide blocks 26. A cylinder 25 is fixedly installed at the front end of each of the two slide grooves 30. The output ends of the two cylinders 25 are fixedly installed on the slide blocks 26. By retracting the output ends of the cylinders 25, it is easy to drive the slide blocks 26 and the moving seat 2 to slide forward. A motor 19 is fixedly installed at the bottom end of the moving seat 2, directly below the drive gear 18. The output end of the motor 19 is fixedly installed on the drive gear 18. The rotation of the drive gear 18 by the motor 19 is beneficial to the use of this equipment. A discharge groove 23 is provided at the left front end of the recovery groove 10 inside the rotating seat 3. A sealing cover 24 is threadedly connected inside the discharge groove 23. The recovered protective coating can be taken out through the discharge groove 23. A box door 4 is slidably connected to the front end of the spray box 1 above the moving seat 2. Opening the box door 4 makes it easy to take out and put in the castings.

[0024] Working principle: The outlet pipe of the transfer pump 5 is connected to the diversion tank 6, and the inlet pipe of the transfer pump 5 is connected to the external protective coating storage tank. The transfer pump 5, cylinder 25, and motor 19 are electrically connected to the external PLC controller via connecting wires. In use, the retraction switch of cylinder 25 is opened, and the output end of cylinder 25 retracts, driving the two slides 26 and the moving seat 2 to slide forward, so that the moving seat 2 and the rotating seat 3 extend out of the spray box 1. Then, the casting to be sprayed is placed between the two grippers 22 on each fixed frame 12, and the coating is applied by turning the handle 2. 9 drives the bidirectional screw 21 to rotate, causing the two grippers 22 to slide towards each other to clamp and fix the casting. Then, the positioning bolt 27 is tightened so that the threaded end of the positioning bolt 27 extends into the corresponding limit hole on the positioning plate 28, thereby locking and fixing the handle 29. After multiple castings are installed, the extension switch of the cylinder 25 is turned on, causing the moving seat 2 to slide and retract the rotating seat 3 backward into the spray box 1. Then, the box door 4 is closed and the spraying switch is turned on. At this time, the delivery pump 5 delivers the protective coating to the diversion tank 6. The feed trough 7 enters the spray base 9 and is sprayed out by multiple nozzles 8. At the same time, the motor 19 works to drive the drive gear 18, gear ring 15, rotating ring 14 and rotating seat 3 to rotate. Since multiple transmission gears 13 are meshed and connected to the gear disc 16, the transmission gears 13 drive the rotating rod 20 and the fixed frame 12 to rotate, so that multiple castings can be sprayed. During the spraying process, excess paint will flow from the top of the recovery tank 10 into the recovery tank 10 for storage and recovery. After the spraying is completed, the moving seat 2 can be extended out of the spray box 1 again using the above principle, so that the workers can easily remove the castings. Then, the circuit connection method, mechanical structure and connection relationship not mentioned in this specification are all conventional technical means in this field, so they will not be described in detail. This casting spraying device for internal combustion engines is easy to use. Through the above components, multiple castings can be sprayed at one time, thereby further improving the processing efficiency of casting spraying. At the same time, the moving seat 2 and rotating seat 3 can be extended out of the spray box 1 during use, which facilitates the loading and unloading of castings, thereby further improving the convenience of using this equipment.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coating device for castings used in internal combustion engines, characterized in that, The system includes a spray box (1), a movable seat (2) at the bottom of the spray box (1), a rotating ring (14) rotatably connected inside the movable seat (2), the top end of the rotating ring (14) extending out of the movable seat (2) and fixedly mounted on a rotating seat (3), a recycling trough (10) and a drive trough (11) arranged sequentially from top to bottom inside the rotating seat (3), a gear disc (16) arranged inside the drive trough (11), a plurality of transmission gears (13) meshing with the outer side of the gear disc (16), a rotating rod (20) fixedly mounted on the top end of each of the plurality of transmission gears (13), and a fixed bracket (12) fixedly mounted on the top end of each of the plurality of rotating rods (20). The frame (12) is rotatably connected with a bidirectional screw (21), and each bidirectional screw (21) is threaded with two clamps (22). The bottom end of the rotating ring (14) extends into the moving seat (2) and is fixedly installed with a toothed ring (15). The right side of the toothed ring (15) is meshed with a drive gear (18). The bottom end of the gear plate (16) is fixedly installed with a column (17). The bottom end of the column (17) extends out of the rotating seat (3) and is fixedly installed at the bottom end of the moving seat (2). Sprayers (9) are fixedly installed on both sides of the spray box (1). Multiple nozzles (8) are fixedly installed on the side of the two sprayers (9) that are close to each other. A delivery pump (5) is fixedly installed at the top of the spray box (1).

2. The coating device for castings for internal combustion engines according to claim 1, characterized in that, The inner wall of the top of the spray box (1) is provided with a diversion groove (6). Each of the two diversion grooves (6) is provided with a conveying groove (7) on the side away from each other. The ends of the two conveying grooves (7) away from the diversion grooves (6) are respectively connected to the corresponding spray base (9).

3. The apparatus according to claim 1, wherein The bidirectional screw (21) is provided with two opposing threads, and the two jaws (22) are respectively sleeved on the two threads.

4. The apparatus according to claim 1, wherein Each of the multiple fixed brackets (12) has a positioning plate (28) fixedly installed on one side near the recycling tank (10). Each of the multiple bidirectional screws (21) extends out of the positioning plate (28) and has a handle (29) fixedly installed on one end near the recycling tank (10). Each of the multiple handles (29) has a positioning bolt (27) threadedly connected to it. The output end of the positioning bolt (27) extends into the positioning plate (28).

5. The apparatus according to claim 1, wherein Both sides of the movable seat (2) are fixedly installed with slides (26). The spray box (1) is provided with slide grooves (30) corresponding to the two slides (26). The front end of each of the two slide grooves (30) is fixedly installed with a cylinder (25). The output end of each of the two cylinders (25) is fixedly installed on the slide (26).

6. The coating device for castings for internal combustion engines according to claim 1, characterized in that, The bottom of the movable base (2) is fixedly installed with a motor (19) located directly below the drive gear (18), and the output end of the motor (19) is fixedly installed on the drive gear (18).

7. The apparatus according to claim 1, wherein The rotating seat (3) is provided with a discharge trough (23) located at the left front end of the recycling trough (10), and a sealing cap (24) is threaded into the discharge trough (23).

8. The coating device for castings for internal combustion engines according to claim 1, characterized in that, The front end of the spray box (1) is slidably connected to the upper part of the movable base (2) with a box door (4).

Images