Surface treatment equipment and process for zinc alloy precision die casting

Abstract

The invention relates to the technical field of die casting machining, and discloses surface treatment equipment and technology for zinc alloy precision die castings, the surface treatment equipment comprises a mounting frame, a feeding port is formed in one side of a first telescopic spring, a discharging port is formed in the other side of the mounting frame, conveying frames are arranged on the feeding port and the discharging port, and a grinding cavity is formed in the top of the mounting frame; a collecting box is arranged at the bottom of the mounting frame, a conveying belt is arranged in the grinding cavity, and a smearing assembly is arranged on the outer wall of one side of the grinding cavity. A liquid storage box is arranged on one side of the grinding cavity, polishing liquid is stored in the liquid storage box, and a quantifying assembly is arranged in the liquid storage box. The smearing assembly is used for uniformly smearing the polishing solution on the surface of the zinc alloy die casting; and the quantitative assembly can quantitatively release the polishing solution according to the size of the zinc alloy die casting. Compared with the prior art, using of the polishing solution is more accurate, waste is reduced, meanwhile, uniform distribution of the polishing solution is guaranteed through the smearing assembly, and the surface treatment effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting processing, and in particular to surface treatment equipment and a process for zinc alloy precision die-castings. Background Art

[0002] Zinc alloy die-casting is a kind of pressure-casting parts. Different casting molds will result in different shapes of zinc alloy die-castings. Zinc alloy precision die-castings are widely used in electronic product housings, automotive parts, precision instrument accessories and other fields due to their excellent mechanical properties, conductivity and good surface machinability. After the zinc alloy die-casting is die-cast, it is usually necessary to perform surface polishing to make the parts smoother.

[0003] In the prior art, when zinc alloy die-castings are surface polished, polishing liquid is usually applied to the surface and then ground and polished. However, there is a problem of uneven release of the polishing liquid during use, resulting in serious waste. At the same time, grinding debris and dust are difficult to be effectively collected, causing environmental pollution and equipment cleaning problems. Therefore, the present application discloses a surface treatment equipment and process for zinc alloy precision die-castings to meet the demand for improving the precise release of polishing liquid when zinc alloy die-castings are surface polished. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a surface treatment equipment and process for zinc alloy precision die-castings, which has the advantages of making the use of polishing liquid more precise and reducing waste. It solves the problem of uneven release of polishing liquid during use in the existing technology, which leads to serious waste and other problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a surface treatment device for zinc alloy precision die-castings, comprising a mounting frame, a feed port is provided on one side of the mounting frame, a discharge port is provided on the other side of the mounting frame, a conveying frame is provided on both the feed port and the discharge port, a polishing chamber is provided on the top of the mounting frame, a collecting box is provided on the bottom of the mounting frame, a conveyor belt is provided in the polishing chamber, the conveyor belt is used to convey the zinc alloy die-castings entering the polishing chamber, a plurality of groups of polishing belts are provided in the polishing chamber, the polishing belts are used to polish the surface of the zinc alloy die-castings, a smearing component is provided on the outer wall of one side of the polishing chamber; a liquid storage box is provided on one side of the polishing chamber, polishing liquid is stored in the liquid storage box, and a quantitative component is provided in the liquid storage box; the smearing component is used to evenly apply the polishing liquid to the surface of the zinc alloy die-castings; the quantitative component can release the polishing liquid in a quantitative manner according to the size of the zinc alloy die-castings.

[0006] Preferably, the smear assembly includes a group of first telescopic rods arranged at the bottom of the liquid storage tank, the first telescopic rod is a telescopic structure, a group of limit plates are provided on the first telescopic rod, a rotating rod is rotatably provided at the bottom of the first telescopic rod, a first telescopic spring is sleeved on the first telescopic rod, the two ends of the first telescopic spring are respectively arranged on both sides of the limit plate, a plurality of groups of second telescopic rods are provided on the rotating rod, the second telescopic rod is a telescopic structure, a contact plate is provided at one end of the second telescopic rod, a second telescopic spring is sleeved on the second telescopic rod, one end of the second telescopic spring is arranged on the rotating rod, and the other end of the second telescopic spring is arranged on one side of the contact plate.

[0007] Preferably, the quantitative component includes a group of mounting tubes arranged through the liquid storage tank, a lifting rod is slidably arranged in the mounting tube, the lifting rod is arranged in multiple sections, a limit cover is provided on the top of the lifting rod, mounting plates are provided on both sides of the mounting tube, a connecting rod is rotatably arranged in the mounting plate, a deflection arm is provided on the connecting rod, one end of the deflection arm is provided with a synchronous tooth, the synchronous tooth is engaged with the lifting rod, a sealing plate is provided at the other end of the deflection arm, and a through groove adapted to the sealing plate is provided in the liquid storage tank.

[0008] Preferably, the quantitative assembly further comprises a synchronization arm provided on one side of the bottom of the first telescopic rod, one end of the synchronization arm is rotatably provided with a contact wheel, and the contact wheel can contact the zinc alloy die-casting.

[0009] Preferably, the surface of the contact plate is provided with multiple groups of contact grooves, the multiple groups of contact plates can form a complete circle, and the heights between the multiple groups of contact plates can be freely adjusted.

[0010] Preferably, a trigger plate is obliquely provided on one side of the bottom of the first telescopic rod, and the trigger plate is in contact with the bottom of the lifting rod.

[0011] Preferably, a plurality of connecting arms are provided on the top of the grinding chamber, a collecting plate is provided on one side of the connecting arm, and the collecting plate is provided on one side of the grinding belt.

[0012] Preferably, the collecting plate is in a triangular structure as a whole, a guide groove is provided on the inner wall of the collecting plate, a guide plate is provided on the top of the collecting plate, the guide plate is an arc-shaped plate bent to one side, and a collecting groove is provided at the bottom of the collecting plate.

[0013] Preferably, the axial center height of the contact plate is the same as the axial center height of the contact wheel, and the contact wheel is located on one side of the contact plate.

[0014] A surface treatment process for zinc alloy precision die castings, applied to any of the above-mentioned surface treatment equipment for zinc alloy precision die castings, comprises the following steps: S1. Transmission of die castings: The zinc alloy precision die castings are transported to the grinding chamber through the feed port, and the conveyor belt transports the die castings along the grinding chamber; S2. Quantitative release of polishing liquid: The polishing liquid stored in the liquid storage tank is released through the quantitative component; S3. Applying polishing liquid on the surface: The application component evenly applies the polishing liquid on the surface of the die-casting through the linkage of the first telescopic rod and the second telescopic rod; S4. Surface grinding: In the grinding chamber, multiple sets of grinding belts perform preliminary grinding on the surface of the die casting to remove burrs and irregular protrusions on the surface; S5. Die-casting output: The die-casting parts after surface treatment are transported out of the equipment through the discharge port, completing the surface treatment process. The collection box at the bottom also collects excess polishing liquid and grinding debris.

[0015] Compared with the prior art, the present invention provides a surface treatment device and process for zinc alloy precision die castings, which has the following beneficial effects: 1. The surface treatment equipment and process for zinc alloy precision die-castings conveys the zinc alloy precision die-castings into the grinding chamber through the feed port, the conveyor belt is responsible for conveying the die-castings along the grinding chamber, and multiple groups of grinding belts perform efficient grinding treatment on the surface of the die-castings. The polishing liquid is stored in the liquid storage tank, and the polishing liquid is accurately released according to the size of the die-castings through the quantitative component. The coating component is evenly coated on the surface of the die-castings to ensure sufficient coverage of the polishing liquid. Finally, the polished die-castings are output through the discharge port, and the waste generated during the treatment process is collected and recovered by the collection box at the bottom. The equipment realizes the automation and integrated operation of the surface treatment of zinc alloy precision die-castings. The coordinated work of the conveyor belt and the grinding belt improves the processing efficiency and makes the quality of the grinding treatment more uniform. The cooperation between the liquid storage tank and the quantitative component makes the use of the polishing liquid more accurate and reduces waste. At the same time, the coating component ensures the uniform distribution of the polishing liquid, further improving the effect of the surface treatment. The collection box at the bottom collects the waste in a centralized manner, effectively improving the working environment and improving the environmental performance of the equipment.

[0016] 2. The surface treatment equipment and process for zinc alloy precision die-castings polishes the surface of the zinc alloy die-castings, and the zinc alloy die-castings are conveyed through a conveyor rack. The zinc alloy die-castings first contact the contact plate. The surface of the contact plate is provided with multiple groups of contact grooves to accommodate polishing liquid. The multiple groups of contact plates are adjusted in height and arrangement to form a complete circle. While applying the polishing liquid to the surface of the die-castings, the plates dynamically adapt to the shape of the die-castings to achieve uniform coverage, effectively improving the polishing quality. The flexible combination of the multiple groups of contact plates enhances the adaptability of the equipment to complex surface structures, while reducing the waste of polishing liquid during the application process, further improving the practicality and economy of the equipment.

[0017] 3. The surface treatment equipment and process for zinc alloy precision die-castings contacts the zinc alloy die-castings through the contact wheel, and the thickness of the zinc alloy die-castings can drive the height of the first telescopic rod to change. At this time, the trigger plate on one side of the first telescopic rod can be raised and lowered synchronously, and then the trigger plate can be brought into contact with the bottom of the lifting rod, thereby pushing the lifting rod to slide in the mounting tube. Therefore, the synchronous teeth engaged with the lifting rod can rotate on the axis of the connecting rod, so that the deflection arm drives the sealing plate to deflect synchronously, thereby achieving the effect of separating the sealing plate from the liquid storage tank, causing the polishing liquid in the liquid storage tank to drip, and realizing the quantitative release of the polishing liquid in the liquid storage tank. The release amount of the polishing liquid can be accurately controlled according to the size of the zinc alloy die-casting, effectively avoiding liquid waste, improving resource utilization, simplifying the operation process, and improving the automation level and processing efficiency of the equipment.

[0018] 4. The surface treatment equipment and process for zinc alloy precision die-castings, the collection plate is located on one side of the grinding belt, and is used to collect debris, dust and polishing liquid generated during the grinding process. The collection plate adopts a triangular structure, and the guide groove on its inner wall can guide the debris, dust and polishing liquid to the collection groove at the bottom. The guide plate is arranged on the top of the collection plate, which is an arc-shaped structure bent to one side, and is used to guide the scattered debris to gather in the direction of the guide groove, thereby reducing the overflow of debris, dust and polishing liquid and improving the collection efficiency. Finally, the debris is concentrated into the collection groove for subsequent cleaning and recycling; efficient collection and centralized treatment of debris, dust and polishing liquid during the grinding process are achieved, the triangular structure of the collection plate enhances strength and stability, the inner wall guide groove effectively avoids the scattering of debris, dust and polishing liquid in the cavity, maintains the cleanliness of the equipment, and the arc structure of the guide plate further improves the collection efficiency of the debris, ensures that the debris, dust and polishing liquid can be smoothly gathered in the collection groove, reduces the impact of debris overflow on the environment, and improves the environmental protection performance and cleaning efficiency of the equipment operation.

[0019] 5. The surface treatment equipment and process for zinc alloy precision die-castings achieves efficient operation of the surface treatment of zinc alloy precision die-castings through automated equipment. Combined with the precise design of the quantitative components and the coating components, it ensures accurate release of the polishing liquid and uniform coating, significantly improving the surface finish while maximizing resource utilization. The reasonable layout of the collection plate and the collection trough effectively collects debris, dust and polishing liquid, reduces environmental pollution, keeps the equipment clean, meets environmental protection requirements, can adapt to the processing needs of die-castings of different shapes and sizes, and broadens the scope of application. The overall process is not only easy to operate and has low maintenance costs, but also improves product quality and is suitable for the efficient surface treatment needs of large-scale industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the grinding chamber of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the coating component of the present invention; Figure 4 For the present invention Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure; Figure 5 This is a schematic diagram of the three-dimensional structure of the quantitative component of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the grinding belt of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the collecting plate of the present invention.

[0021] In the figure: 1. Mounting frame; 2. Feed port; 3. Discharge port; 4. Conveyor frame; 5. Collecting box; 6. Grinding chamber; 7. Conveyor belt; 8. Grinding belt; 9. Liquid storage box; 10. First telescopic rod; 11. Limiting plate; 12. First telescopic spring; 13. Rotating rod; 14. Second telescopic rod; 15. Second telescopic spring; 16. Contact plate; 17. Contact groove; 18. Synchronizing arm; 19. Contact wheel; 20. Mounting cylinder; 21. Lifting rod; 22. Limiting cover; 23. Mounting plate; 24. Connecting rod; 25. Deflection arm; 26. Synchronizing gear; 27. Sealing plate; 28. Trigger plate; 29. ​​Collecting plate; 30. Connecting arm; 31. Guide plate; 32. Guide groove; 33. Collecting groove. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] As introduced in the background technology, in order to solve the deficiencies in the existing technology, this application proposes a surface treatment equipment and process for zinc alloy precision die castings.

[0024] In a typical embodiment of the present application, Figure 1-7 As shown, a surface treatment equipment for zinc alloy precision die-castings includes a mounting frame 1, a feed port 2 is provided on one side of the mounting frame 1, a discharge port 3 is provided on the other side of the mounting frame 1, and a conveying frame 4 is provided on the feed port 2 and the discharge port 3. A grinding chamber 6 is provided on the top of the mounting frame 1, and a collecting box 5 is provided at the bottom of the mounting frame 1. A conveyor belt 7 is provided in the grinding chamber 6, and the conveyor belt 7 is used to convey the zinc alloy die-castings entering the grinding chamber 6. A plurality of groups of grinding belts 8 are provided in the grinding chamber 6, and the grinding belts 8 are used to grind the surface of the zinc alloy die-castings. A smearing component is provided on the outer wall of one side of the grinding chamber 6; a liquid storage box 9 is provided on one side of the grinding chamber 6, and polishing liquid is stored in the liquid storage box 9. A quantitative component is provided in the liquid storage box 9; the smearing component is used to evenly apply the polishing liquid to the surface of the zinc alloy die-casting; the quantitative component can quantitatively release the polishing liquid according to the size of the zinc alloy die-casting; The zinc alloy precision die-casting is conveyed to the polishing chamber 6 through the feed port 2, and the conveyor belt 7 is responsible for conveying the die-casting along the polishing chamber 6. Multiple groups of polishing belts 8 perform efficient polishing treatment on the surface of the die-casting. The polishing liquid is stored in the liquid storage tank 9, and the polishing liquid is accurately released according to the size of the die-casting through the quantitative component. The coating component is evenly coated on the surface of the die-casting to ensure sufficient coverage of the polishing liquid. Finally, the polished die-casting is output through the discharge port 3, and the waste generated during the treatment process is collected and recovered by the collection box 5 at the bottom; the equipment realizes the automation and integrated operation of the surface treatment of zinc alloy precision die-castings. The coordinated work of the conveyor belt 7 and the polishing belt 8 improves the processing efficiency and the quality of the polishing treatment is more uniform. The cooperation between the liquid storage tank 9 and the quantitative component makes the use of the polishing liquid more accurate and reduces waste. At the same time, the coating component ensures the uniform distribution of the polishing liquid, further improving the effect of the surface treatment. The collection box 5 at the bottom collects the waste in a centralized manner, effectively improving the working environment and improving the environmental performance of the equipment.

[0025] As a preferred implementation in this embodiment, refer to the attached Figure 1 、 Figure 3 and Figure 4The smearing assembly includes a group of first telescopic rods 10 arranged at the bottom of the liquid storage tank 9, the first telescopic rod 10 is a telescopic structure, a group of limit plates 11 are provided on the first telescopic rod 10, and a rotating rod 13 is rotatably provided at the bottom of the first telescopic rod 10, a first telescopic spring 12 is sleeved on the first telescopic rod 10, and the two ends of the first telescopic spring 12 are respectively arranged on both sides of the limit plate 11, and a plurality of second telescopic rods 14 are provided on the rotating rod 13, and the second telescopic rod 14 is a telescopic structure, one end of the second telescopic rod 14 is provided with a contact plate 16, and the second telescopic rod 14 is sleeved with a second telescopic spring 15, one end of the second telescopic spring 15 is arranged on the rotating rod 13, and the other end of the second telescopic spring 15 is arranged on one side of the contact plate 16; a plurality of contact grooves 17 are provided on the surface of the contact plate 16, and a complete circle can be formed between the plurality of contact plates 16, and the height between the plurality of contact plates 16 can be freely adjusted; the axial center height of the contact plate 16 is the same as the axial center height of the contact wheel 19, and the contact wheel 19 is located on one side of the contact plate 16; When the surface of the zinc alloy die-casting is polished, the zinc alloy die-casting is conveyed through the conveying rack 4. The zinc alloy die-casting first contacts the contact plate 16. A plurality of contact grooves 17 are arranged on the surface of the contact plate 16 to accommodate polishing liquid. A complete circle is formed by adjusting the height and arrangement of the plurality of contact plates 16. While applying the polishing liquid on the surface of the die-casting, the die-casting is dynamically adapted to the shape of the die-casting to achieve uniform coverage, thereby effectively improving the polishing quality. The flexible combination of the plurality of contact plates 16 enhances the adaptability of the equipment to complex surface structures, while reducing the waste of polishing liquid during the application process, further improving the practicality and economy of the equipment.

[0026] As a preferred implementation in this embodiment, refer to the attached Figure 3-Figure 5The quantitative component includes a group of mounting tubes 20 that are arranged through the liquid storage box 9, and a lifting rod 21 is slidably arranged in the mounting tube 20. The lifting rod 21 is arranged in multiple sections, and a limit cover 22 is provided on the top of the lifting rod 21. Mounting plates 23 are provided on both sides of the mounting tube 20, and a connecting rod 24 is rotatably provided in the mounting plate 23. A deflection arm 25 is provided on the connecting rod 24, and a synchronous tooth 26 is provided at one end of the deflection arm 25. The synchronous tooth 26 meshes with the lifting rod 21, and a sealing plate 27 is provided at the other end of the deflection arm 25. A through groove adapted to the sealing plate 27 is provided in the liquid storage box 9; the quantitative component also includes a synchronous arm 18 arranged on one side of the bottom of the first telescopic rod 10, and a contact wheel 19 is rotatably provided at one end of the synchronous arm 18, which can contact the zinc alloy die-casting; a trigger plate 28 is tilted on one side of the bottom of the first telescopic rod 10, and the trigger plate 28 is aligned with the bottom of the lifting rod 21 The contact wheel 19 contacts the zinc alloy die-casting, and the thickness of the zinc alloy die-casting can drive the height of the first telescopic rod 10 to change. At this time, the trigger plate 28 on one side of the first telescopic rod 10 can be raised and lowered synchronously, and then the trigger plate 28 can be brought into contact with the bottom of the lifting rod 21, thereby pushing the lifting rod 21 to slide in the mounting tube 20. Therefore, the synchronous tooth 26 engaged with the lifting rod 21 can be rotated on the axis of the connecting rod 24, so that the deflection arm 25 drives the sealing plate 27 to deflect synchronously, thereby achieving the effect of separating the sealing plate 27 from the liquid storage tank 9, causing the polishing liquid in the liquid storage tank 9 to drip, thereby achieving the quantitative release of the polishing liquid in the liquid storage tank 9, and can accurately control the release amount of the polishing liquid according to the size of the zinc alloy die-casting, effectively avoiding liquid waste, improving resource utilization, simplifying the operation process, and improving the automation level and processing efficiency of the equipment.

[0027] As a preferred implementation in this embodiment, refer to the attached Figure 2 、 Figure 6 and Figure 7 , a plurality of connecting arms 30 are provided at the top of the grinding chamber 6, a collecting plate 29 is provided on one side of the connecting arm 30, and the collecting plate 29 is provided on one side of the grinding belt 8; the collecting plate 29 is a triangular structure as a whole, and a guide groove 32 is provided on the inner wall of the collecting plate 29, a guide plate 31 is provided on the top of the collecting plate 29, and the guide plate 31 is an arc-shaped arc bent to one side, and a collecting groove 33 is provided at the bottom of the collecting plate 29; The collecting plate 29 is located on one side of the grinding belt 8 and is used to collect the debris, dust and polishing liquid generated during the grinding process. The collecting plate 29 adopts a triangular structure, and the guide groove 32 on its inner wall can guide the debris, dust and polishing liquid to the collecting groove 33 at the bottom. The guide plate 31 is set on the top of the collecting plate 29 and is an arc-shaped structure bent to one side. It is used to guide the scattered debris to gather in the direction of the guide groove 32, reduce the overflow of debris, dust and polishing liquid, and improve the collection efficiency. Finally, the debris is concentrated into the collecting groove 33 for subsequent cleaning. Processing and recycling; it realizes the efficient collection and centralized treatment of debris, dust and polishing liquid during the grinding process. The triangular structure of the collection plate 29 enhances the strength and stability. The inner wall guide groove 32 effectively prevents the debris, dust and polishing liquid from flying in the cavity, maintaining the cleanliness of the equipment. The arc structure of the guide plate 31 further improves the collection efficiency of the debris, ensuring that the debris, dust and polishing liquid can be smoothly gathered into the collection groove 33, reducing the impact of the debris overflow on the environment, and improving the environmental protection performance and cleaning efficiency of the equipment operation.

[0028] A surface treatment process for zinc alloy precision die castings, applied to any of the above-mentioned surface treatment devices for zinc alloy precision die castings, comprises the following steps: S1. Die-casting transmission: The zinc alloy precision die-casting is transported into the grinding chamber 6 through the feed port 2. The conveyor belt 7 transports the die-casting along the grinding chamber 6, providing a stable transmission path for subsequent processing; S2. Quantitative release of polishing liquid: The polishing liquid stored in the liquid storage tank 9 is released through a quantitative assembly, which includes a mounting cylinder 20, a lifting rod 21, a limit cover 22, a connecting rod 24, and a deflection arm 25. The amount of polishing liquid released can be precisely controlled according to the size and surface characteristics of the die-casting. The polishing liquid is evenly released through the groove and the sealing plate 27 to avoid waste. S3, surface polishing liquid: smear assembly through the first telescopic rod 10 and the second telescopic rod 14 linkage, the polishing liquid is evenly coated on the surface of the die casting, the contact plate 16 of the plurality of contact grooves 17 to ensure uniform distribution of the polishing liquid, improve the surface finish; S4, surface grinding: In the grinding chamber 6, multiple sets of grinding belts 8 perform preliminary grinding on the surface of the die casting to remove burrs and irregular protrusions on the surface and ensure machining uniformity; S5. Die-casting output: The die-casting after surface treatment is transported out of the equipment through the discharge port 3, completing the surface treatment process. The bottom collection box 5 also collects excess polishing liquid and grinding debris for subsequent processing.

[0029] Automated equipment enables efficient surface treatment of zinc alloy precision die-castings. The precise design of the dosing and coating components ensures accurate release and uniform coating of the polishing liquid, significantly improving surface finish while maximizing resource utilization. The rational layout of the collection plates and collection troughs effectively collects debris, dust, and polishing liquid, reducing environmental pollution and keeping the equipment clean. This meets environmental protection requirements and can adapt to the processing needs of die-castings of different shapes and sizes, broadening the scope of application. The overall process is not only easy to operate and has low maintenance costs, but also improves product quality and is suitable for the efficient surface treatment needs of large-scale industrial production.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for zinc alloy precision die castings, comprising a mounting frame (1), a feed port (2) being provided on one side of the mounting frame (1), a discharge port (3) being provided on the other side of the mounting frame (1), and a conveying frame (4) being provided on both the feed port (2) and the discharge port (3), characterized in that: A grinding chamber (6) is provided on the top of the mounting frame (1), a collecting box (5) is provided on the bottom of the mounting frame (1), a conveyor belt (7) is provided in the grinding chamber (6), and the conveyor belt (7) is used to convey the zinc alloy die-casting entering the grinding chamber (6), a plurality of groups of grinding belts (8) are provided in the grinding chamber (6), and the grinding belts (8) are used to grind the surface of the zinc alloy die-casting, and a coating component is provided on the outer wall of one side of the grinding chamber (6); a liquid storage box (9) is provided on one side of the grinding chamber (6), and polishing liquid is stored in the liquid storage box (9), and a quantitative component is provided in the liquid storage box (9); The smearing assembly is used to evenly apply polishing liquid to the surface of the zinc alloy die casting; The quantitative component can release the polishing liquid in a quantitative manner according to the size of the zinc alloy die casting.

2. The surface treatment equipment for zinc alloy precision die castings according to claim 1, characterized in that: The smearing assembly includes a group of first telescopic rods (10) arranged at the bottom of the liquid storage box (9), the first telescopic rod (10) is a telescopic structure, a group of limit plates (11) are provided on the first telescopic rod (10), a rotating rod (13) is rotatably provided at the bottom of the first telescopic rod (10), a first telescopic spring (12) is sleeved on the first telescopic rod (10), the two ends of the first telescopic spring (12) are respectively arranged on both sides of the limit plate (11), a plurality of groups of second telescopic rods (14) are provided on the rotating rod (13), the second telescopic rod (14) is a telescopic structure, one end of the second telescopic rod (14) is provided with a contact plate (16), the second telescopic rod (14) is sleeved with a second telescopic spring (15), one end of the second telescopic spring (15) is arranged on the rotating rod (13), and the other end of the second telescopic spring (15) is arranged on one side of the contact plate (16).

3. The surface treatment equipment for zinc alloy precision die castings according to claim 2, characterized in that: The quantitative component includes a group of mounting tubes (20) arranged through the liquid storage box (9), a lifting rod (21) is slidably arranged in the mounting tube (20), the lifting rod (21) is arranged in multiple sections, a limit cover (22) is provided on the top of the lifting rod (21), mounting plates (23) are provided on both sides of the mounting tube (20), a connecting rod (24) is rotatably arranged in the mounting plate (23), a deflection arm (25) is provided on the connecting rod (24), one end of the deflection arm (25) is provided with a synchronous tooth (26), the synchronous tooth (26) is engaged with the lifting rod (21), the other end of the deflection arm (25) is provided with a sealing plate (27), and a through groove adapted to the sealing plate (27) is opened in the liquid storage box (9).

4. The surface treatment equipment for zinc alloy precision die castings according to claim 3, characterized in that: The quantitative assembly further comprises a synchronous arm (18) arranged on one side of the bottom of the first telescopic rod (10), one end of the synchronous arm (18) being rotatably provided with a contact wheel (19), and the contact wheel (19) being capable of contacting the zinc alloy die-casting.

5. The surface treatment equipment for zinc alloy precision die castings according to claim 2, characterized in that: The surface of the contact plate (16) is provided with multiple groups of contact grooves (17), and the multiple groups of contact plates (16) can form a complete circle, and the heights between the multiple groups of contact plates (16) can be freely adjusted.

6. The surface treatment equipment for zinc alloy precision die castings according to claim 3, characterized in that: A trigger plate (28) is obliquely provided on one side of the bottom of the first telescopic rod (10), and the trigger plate (28) is in contact with the bottom of the lifting rod (21).

7. The surface treatment equipment for zinc alloy precision die castings according to claim 4, characterized in that: A plurality of groups of connecting arms (30) are provided on the top of the grinding chamber (6), a collecting plate (29) is provided on one side of the connecting arm (30), and the collecting plate (29) is provided on one side of the grinding belt (8).

8. The surface treatment equipment for zinc alloy precision die castings according to claim 7, characterized in that: The collecting plate (29) is in a triangular structure as a whole. A guide groove (32) is provided on the inner wall of the collecting plate (29). A guide plate (31) is provided on the top of the collecting plate (29). The guide plate (31) is in an arc shape that bends to one side. A collecting groove (33) is provided on the bottom of the collecting plate (29).

9. The surface treatment equipment for zinc alloy precision die castings according to claim 7, characterized in that: The axial center height of the contact plate (16) is the same as the axial center height of the contact wheel (19), and the contact wheel (19) is located on one side of the contact plate (16).

10. A surface treatment process for zinc alloy precision die castings, applied to a surface treatment device for zinc alloy precision die castings according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Transmission of die castings: The zinc alloy precision die castings are transported to the grinding chamber (6) through the feed port (2), and the conveyor belt (7) transports the die castings along the grinding chamber (6); S2, quantitative release of polishing liquid: the polishing liquid stored in the liquid storage tank (9) is released through the quantitative component; S3, applying polishing liquid on the surface: the application component evenly applies the polishing liquid on the surface of the die casting through the linkage of the first telescopic rod (10) and the second telescopic rod (14); S4, surface grinding: in the grinding chamber (6), multiple sets of grinding belts (8) perform preliminary grinding on the surface of the die casting to remove burrs and irregular protrusions on the surface; S5. Die-casting output: The die-casting after surface treatment is transported out of the equipment through the discharge port (3), completing the surface treatment process. The bottom collection box (5) collects excess polishing liquid and grinding debris at the same time.

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