Suspension chain workpiece cleaning system
By setting the drainage distance between the rust-preventive spray zone and the cleaning zone, the full coverage design of the spray nozzles, and the limitation of the limiting rods in the overhead chain workpiece cleaning system, the problem of poor paint flow in the overhead chain workpiece cleaning system was solved, and uniform coverage of the rust-preventive liquid and improved yield were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIULONG MASCH CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-08
AI Technical Summary
In overhead conveyor cleaning systems, poor paint flow leads to localized accumulation and uneven coverage on the workpiece surface, reducing the yield rate.
A suspended chain workpiece cleaning system was designed, including a loading and unloading area, a pre-cleaning area, a cleaning area, a rust-preventive spraying area, an inspection and repair area, and a drying area. The spray nozzles are designed to cover all surfaces of the workpiece. The rust-preventive spraying area and the cleaning area are provided with a draining gap. A limit rod restricts the rotation of the workpiece. An ultrasonic cleaning device and a spray rinsing device are used in combination.
It effectively prevents rust-preventive materials from accumulating on the workpiece surface, ensures uniform coverage of the rust-preventive liquid, and improves the rust-preventive performance and yield of the workpiece.
Smart Images
Figure CN224208656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of workpiece processing systems, and in particular to a suspended chain workpiece cleaning system. Background Technology
[0002] A suspended chain workpiece cleaning system typically includes a suspended chain, a suspended chain conveyor, and multiple workpiece processing stations. The suspended chain is used to suspend workpieces (such as flywheel housings, automotive brake pads, equipment parts, etc.), while the suspended chain conveyor drives the suspended chain and workpieces sequentially through different workpiece processing stations. The workpiece processing stations typically include dust removal stations, spraying stations, drying stations, and paint dipping stations, which are used for dust removal, cleaning, drying, and paint dipping of the workpieces, respectively.
[0003] However, due to the poor fluidity of the paint and the complex surface structure (i.e. unevenness) of some workpieces (such as flywheel housings), defects such as local accumulation of paint on the workpiece and local non-coverage of the outer surface of the workpiece are easily caused, which in turn reduces the yield of the workpiece. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a suspended chain workpiece cleaning system.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A suspended chain workpiece cleaning system includes a conveying device for transporting workpieces, and a loading / unloading area, a pre-cleaning area, a cleaning area, a rust-preventive liquid spraying area, an inspection and repair area, and a drying area arranged sequentially along the conveying direction of the workpieces; the rust-preventive liquid spraying area has a plurality of nozzles distributed therein for spraying rust-preventive liquid onto the workpieces; a pre-set drainage distance is provided between the rust-preventive liquid spraying area and the cleaning area.
[0007] Preferably, the nozzle includes a side nozzle and a bottom nozzle;
[0008] The spraying range of the side nozzles covers at least the side wall and top wall of the workpiece;
[0009] The spraying range of the lower nozzle at least covers the bottom surface of the workpiece.
[0010] Preferably, two sets of side nozzles are provided;
[0011] The two sets of side nozzles are respectively distributed on both sides of the workpiece transport direction, and are symmetrically distributed;
[0012] Each group of side nozzles has several arranged along the direction of gravity, and at least the uppermost side nozzle is installed at a height higher than the upper surface of the workpiece.
[0013] Preferably, the lower nozzle is provided in one group or distributed in several groups along the working material running direction;
[0014] Each group of lower nozzles has several arranged along the thickness direction of the workpiece.
[0015] Preferably, along the workpiece transport direction, the cleaning zone is sequentially equipped with a spray cleaning device, an ultrasonic cleaning device, and a spray rinsing device;
[0016] The spray cleaning device includes a spray section and a liquid guiding chamber, and the ultrasonic cleaning device has a cleaning chamber, with the liquid guiding chamber and the cleaning chamber being spaced apart.
[0017] Along the running direction of the workpiece, the liquid guiding cavity is flared from bottom to top to form an inclined inner wall.
[0018] Preferably, it also includes a housing;
[0019] The pre-cleaning area, the cleaning area, the rust inhibitor spraying area, and the drying area are all located inside the box.
[0020] At least the spray rinsing equipment and the spray head are housed in the same enclosure.
[0021] Preferably, at least one limiting rod is provided in the rust-preventive liquid spraying area, and the limiting rod is used to restrict the circumferential rotation of the workpiece;
[0022] The limiting rods are arranged in pairs and extend along the running direction of the workpiece to form a channel for the workpiece to move.
[0023] Preferably, the inspection and repair area is provided with a manual station, and the workpiece can rotate circumferentially at the manual station;
[0024] And / or,
[0025] It also includes a workpiece suspension rod for suspending the workpiece, the upper end of the workpiece suspension rod being provided with a hook, the hook being suspended on the conveying device so that the workpiece can be removed from the conveying device at the manual position.
[0026] Preferably, the conveying device includes a chain mounting frame, a chain, a sprocket assembly, a suspension frame, and a turntable;
[0027] The chain is installed in the chain mounting frame and engages with the sprocket assembly for transmission;
[0028] The upper end of the suspension frame is connected to the sprocket assembly, and the lower end is rotatably connected to the turntable.
[0029] The turntable is provided with a suspension ring for connecting to the hook.
[0030] Preferably, the chain includes a first chain and a second chain, wherein the first chain and the second chain are distributed from the inside out;
[0031] The sprocket assembly includes a connecting shaft and sprockets disposed at both ends of the connecting shaft. The two sprockets respectively engage with the first chain and the second chain for transmission.
[0032] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0033] This utility model provides a suspended chain workpiece cleaning system. By setting up a rust-preventive liquid spraying zone, it can perform rust prevention treatment on workpieces with complex surface structures (i.e., relatively uneven surfaces), such as flywheel housings. Compared with immersion rust prevention, this solution can effectively avoid the accumulation of rust-preventive material on the workpiece surface, ensuring the rust prevention performance of the workpiece and effectively improving the yield rate. In addition, a preset length of drainage distance is provided between the rust-preventive liquid spraying zone and the cleaning zone, which can effectively prevent residual cleaning liquid on the workpiece from affecting the adhesion of the rust-preventive liquid to the workpiece surface, further improving the workpiece yield rate. Attached Figure Description
[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0035] Figure 1 This is a schematic diagram of one example of the structure provided by this utility model.
[0036] Figure 2 This is a schematic diagram showing the distribution of the nozzles in the rust-preventive liquid spraying area provided by this utility model.
[0037] Figure 3 This is a schematic diagram showing the distribution of the spray cleaning equipment and ultrasonic cleaning equipment provided by this utility model.
[0038] Figure 4 A schematic diagram showing the connection of the first box, the second box, and the third box provided by this utility model.
[0039] Figure 5 This is a schematic diagram showing the connection between the conveying device, the workpiece suspension rod, and the workpiece.
[0040] Figure 6 for Figure 5 An enlarged diagram of position D1.
[0041] Figure 7 for Figure 5An enlarged view of position D2 in the middle.
[0042] Figure 8 for Figure 2 A schematic diagram showing the connection of the suspension frame, turntable, and suspension ring.
[0043] Explanation of reference numerals in the attached figures:
[0044] 100. Workpiece; 1. Conveying device; 11. Chain mounting frame; 12. Chain; 121. First chain; 122. Second chain; 13. Sprocket assembly; 131. Connecting shaft; 132. Sprocket; 14. Suspension frame; 15. Turntable; 16. Suspension ring; 2. Loading and unloading area; 3. Pre-cleaning area; 31. Scanning and chip blowing device; 4. Cleaning area; 41. Spray cleaning equipment; 411. Spray section; 412. Liquid guiding chamber; 42. Ultrasonic... 421. Cleaning chamber; 43. Spray rinsing equipment; 5. Rust inhibitor spraying area; 51. Nozzle; 511. Side nozzle; 512. Lower nozzle; 6. Inspection and repair area; 7. Drying area; 71. Drying device; 8. Limiting rod; 81. Guide section; 9. Box; 91. First box; 92. Second box; 93. Third box; 10. Workpiece suspension rod; 101. Hook; 20. Arc tray; 30. Connecting tray. Detailed Implementation
[0045] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0048] See Figures 1 to 7 This utility model provides a suspended chain workpiece cleaning system, including a conveying device 1 for transporting workpiece 100, and a conveying direction along the workpiece 100 (i.e., Figure 1 The loading / unloading area 2, pre-cleaning area 3, cleaning area 4, rust inhibitor spraying area 5, inspection and repair area 6, and drying area 7 are arranged sequentially in the Z direction (as shown). The rust inhibitor spraying area 5 is equipped with several nozzles 51 for spraying rust inhibitor onto the workpiece 100; a pre-set drainage distance is provided between the rust inhibitor spraying area 5 and the cleaning area 4.
[0049] It is easy to understand that in the above solution, by setting up the rust-preventive spray zone 5, rust prevention treatment can be applied to workpieces 100 with complex surface structures (i.e., relatively uneven surfaces) such as flywheel housings. Compared to immersion rust prevention, this solution can effectively prevent the accumulation of rust-preventive material on the surface of workpiece 100, ensuring the rust prevention performance of workpiece 100 and improving the yield rate. In addition, a preset length of drainage distance is provided between the rust-preventive spray zone 5 and the cleaning zone 4, which can effectively prevent residual cleaning liquid on workpiece 100 from affecting the adhesion of the rust-preventive liquid to the surface of workpiece 100, thereby improving the yield rate of workpiece 100.
[0050] Specifically, loading / unloading area 2 is used for operators to load or unload workpieces 100, suspending untreated workpieces 100 onto conveyor device 1 and removing treated workpieces 100 from conveyor device 1. Pre-cleaning area 3 is used to pre-clean the workpieces 100 suspended from loading / unloading area 2. Pre-cleaning area 3 is equipped with a scanning and blowing device 31 to remove debris from the surface of workpieces 100. Cleaning area 4 is used to clean the pre-cleaned workpieces 100 using cleaning fluid. Rust inhibitor spraying area 5 is used to spray rust inhibitor onto the cleaned workpieces 100, forming a rust-preventive layer on the surface. Inspection and repair area 6 is used by operators to inspect and repair the workpieces 100 after rust inhibitor spraying, preventing localized rust inhibitor accumulation or missed areas, thus improving the yield rate of workpieces 100. Drying area 7 is equipped with a drying device 71 to dry the surface of workpieces 100, forming a stable rust-preventive layer on the surface.
[0051] See Figure 1 and Figure 2 The nozzle 51 includes a side nozzle 511 and a bottom nozzle 512; the spraying range of the side nozzle 511 covers at least the side wall and the top wall of the workpiece 100; the spraying range of the bottom nozzle 512 covers at least the bottom surface of the workpiece 100, so as to ensure that the anti-rust liquid can completely cover the surface of the workpiece 100.
[0052] Specifically, there are two sets of side spray nozzles 511; the two sets of side spray nozzles 511 are respectively distributed on both sides of the workpiece 100 in the transport direction and are symmetrically distributed so that when the two sets of side spray nozzles 511 spray rust inhibitor onto the workpiece 100 at the same time, the workpiece 100 is subjected to more uniform force.
[0053] Furthermore, each group of side nozzles 511 has several arranged along the direction of gravity, and at least the uppermost side nozzle 511 is installed at a height higher than the upper surface of the workpiece 100.
[0054] Furthermore, the lower nozzle 512 is provided in one group or distributed in several groups along the running direction of the workpiece 100; each group of lower nozzles 512 is provided with several nozzles along the thickness direction of the workpiece 100.
[0055] See Figure 1 and Figure 3 Along the transport direction of workpiece 100 (i.e. Figure 1 (As shown in the Z direction), the cleaning zone 4 is sequentially equipped with a spray cleaning device 41, an ultrasonic cleaning device 42, and a spray rinsing device 43. There is one spray cleaning device 41, multiple ultrasonic cleaning devices 42, and two spray rinsing devices 43. To ensure cleaning effectiveness, a certain length of drainage gap is provided between the spray cleaning device 41 and the ultrasonic cleaning device 42, and between the ultrasonic cleaning devices 42 and the spray rinsing device 43.
[0056] Specifically, the spray cleaning equipment 41 includes a spray section 411 and a liquid guiding chamber 412, and the ultrasonic cleaning equipment 42 has a cleaning chamber 421. The liquid guiding chamber 412 and the cleaning chamber 421 are spaced apart. Along the running direction of the workpiece 100, the liquid guiding chamber 412 is distributed in an flared manner from bottom to top to form an inclined inner wall, which can effectively prevent impurities washed down by the spray cleaning liquid from entering the cleaning chamber 421.
[0057] Of course, in other embodiments, multiple spray cleaning devices 41 may be provided; one, two or more ultrasonic cleaning devices 42 may be provided; and one, three or more spray rinsing devices 43 may be provided.
[0058] See Figures 1 to 4To isolate the cleaning space of workpiece 100 from the external workshop space, and thus prevent impurities in the workshop air from adhering to workpiece 100 before spraying rust inhibitor, this embodiment also includes a housing 9; the pre-cleaning area 3, the cleaning area 4, the rust inhibitor spraying area 5, and the drying area 7 are all located inside the housing 9; at least the spray rinsing equipment 43 and the spray nozzle 51 are located inside the same housing 9.
[0059] Specifically, the housing 9 includes a first housing 91, a second housing 92, and a third housing 93. The scanning chip blowing device 31, the spray cleaning device 41, and the ultrasonic cleaning device 42 are located in the first housing 91; the nozzle 51 and the spray rinsing device 43 are located in the second housing 92; and the drying device 71 is located in the third housing 93. The inspection and repair area 6 is located between the second housing 92 and the third housing 93.
[0060] Furthermore, the conveying device 1 is arranged in a ring, that is, the running trajectory of the workpiece 100 is arranged in a ring. The first box 91 extends in a straight line along the running direction of the workpiece 100, and the second box 92 and the third box 93 are arranged in a straight line along the running direction of the workpiece 100. The first box 91 and the second box 92 are connected by the arc tray 20, and the second box 92 and the third box 93 are connected by the connecting tray 30. The arc tray 20 and the connecting tray 30 can prevent the cleaning liquid on the workpiece 100 from dripping onto the ground.
[0061] See Figures 1 to 8 It also includes a limiting rod 8 for restricting the workpiece's 100° circumferential rotation. The limiting rod 8 is formed in the pre-cleaning zone 3, the cleaning zone 4, the rust inhibitor spraying zone 5, and the drying zone 7.
[0062] Specifically, taking the rust-preventive spray zone 5 as an example, the limit rods 8 are set in pairs and extend along the running direction of the workpiece 100 to form a channel for the workpiece 100 to move.
[0063] It is easy to understand that when the rust inhibitor is sprayed, the impact force on the workpiece 100 is relatively large, which can easily cause the workpiece 100 to deflect and further affect the spraying effect of the rust inhibitor. Therefore, in this embodiment, the setting of the limiting rod 8 can restrict the workpiece 100 from rotating circumferentially within the rust inhibitor spraying area 5, so as to ensure that the rust inhibitor can cover the surface of the workpiece 100.
[0064] Furthermore, a limiting rod 8 can also be provided on one side of the arc-shaped pallet 20 and the connecting pallet 30. It is easy to understand that the limiting rod 8 is only provided on one side to avoid affecting the rotation of the workpiece 100, and its main purpose is to play a certain guiding role.
[0065] Furthermore, the portion of the limiting rod 8 located outside the opening of the housing 9 has a guide section 81.
[0066] See Figures 1 to 8 In order to improve the yield rate and avoid uneven adhesion of rust inhibitor on workpiece 100, in this embodiment, the inspection and repair area 6 is provided with a manual position, and workpiece 100 can rotate circumferentially at the manual position, so that the operator can perform a comprehensive inspection and repair of workpiece 100 at the manual position.
[0067] Furthermore, it also includes a workpiece suspension rod 10 for suspending the workpiece 100. The upper end of the workpiece suspension rod 10 is provided with a hook 101, which is suspended on the conveying device 1 so that the workpiece 100 can be removed from the conveying device 1 at the manual position, thereby avoiding the impact on the efficiency of the entire system when large-area repairs of the workpiece 100 are required.
[0068] Specifically, the conveying device 1 includes a chain mounting frame 11, a chain 12, a sprocket assembly 13, a suspension frame 14, and a turntable 15; the chain 12 is installed in the chain mounting frame 11 and meshes with the sprocket assembly 13 for transmission; the upper end of the suspension frame 14 is connected to the sprocket assembly 13, and the lower end is rotatably connected to the turntable 15; the turntable 15 is provided with a suspension ring 16 for connecting to the hook 101.
[0069] Furthermore, the chain 12 includes a first chain 121 and a second chain 122, which are distributed from the inside out; the sprocket assembly 13 includes a connecting shaft 131 and sprockets 132 disposed at both ends of the connecting shaft 131, and the two sprockets 132 respectively mesh with the first chain 121 and the second chain 122 for transmission.
[0070] It is easy to understand that by engaging the first chain 121 and the second chain 122 with the two sprockets 132 respectively, the stable operation of the workpiece 100 can be further guaranteed, and the workpiece 100 can be prevented from deviating during the movement.
[0071] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A suspended chain workpiece cleaning system, characterized in that, It includes a conveying device (1) for transporting workpieces (100), and a loading and unloading area (2), a pre-cleaning area (3), a cleaning area (4), a rust-preventive liquid spraying area (5), an inspection and repair area (6), and a drying area (7) arranged sequentially along the conveying direction of the workpieces (100); The rust-preventive liquid spraying area (5) is provided with a number of nozzles (51) for spraying rust-preventive liquid onto the workpiece (100); A pre-set drainage gap is provided between the rust-preventive spraying area (5) and the cleaning area (4).
2. The overhead conveyor workpiece cleaning system according to claim 1, characterized in that, The nozzle (51) includes a side nozzle (511) and a bottom nozzle (512); The spraying range of the side nozzle (511) covers at least the side wall and the top wall of the workpiece (100); The spraying range of the lower nozzle (512) covers at least the bottom surface of the workpiece (100).
3. The overhead conveyor workpiece cleaning system according to claim 2, characterized in that, The side nozzles (511) are provided in two sets; The two sets of side nozzles (511) are respectively distributed on both sides of the transport direction of the workpiece (100) and are symmetrically distributed; Each group of side nozzles (511) is provided with several of them along the direction of gravity, and at least the uppermost side nozzle (511) is installed at a height higher than the upper surface of the workpiece (100).
4. The overhead conveyor workpiece cleaning system according to claim 2, characterized in that, The lower nozzle (512) is provided with one set or has several sets distributed along the running direction of the workpiece (100); Each set of the lower nozzles (512) has several arranged along the thickness direction of the workpiece (100).
5. The overhead conveyor workpiece cleaning system according to claim 1, characterized in that, Along the transport direction of the workpiece (100), a spray cleaning device (41), an ultrasonic cleaning device (42) and a spray rinsing device (43) are sequentially arranged in the cleaning area (4); The spray cleaning device (41) includes a spray section (411) and a liquid guiding chamber (412), and the ultrasonic cleaning device (42) has a cleaning chamber (421), with the liquid guiding chamber (412) and the cleaning chamber (421) spaced apart. Along the running direction of the workpiece (100), the liquid guiding cavity (412) is flared from bottom to top to form an inclined inner wall.
6. The overhead conveyor workpiece cleaning system according to claim 5, characterized in that, It also includes the housing (9); The pre-cleaning area (3), the cleaning area (4), the rust-preventive liquid spraying area (5), and the drying area (7) are all located inside the housing (9); At least the spray rinsing device (43) and the spray head (51) are located in the same housing (9).
7. A suspended chain workpiece cleaning system according to any one of claims 2-6, characterized in that, At least one limiting rod (8) is provided in the rust-preventive spraying area (5), and the limiting rod (8) is used to restrict the circumferential rotation of the workpiece (100); The limiting rods (8) are arranged in pairs and extend along the running direction of the workpiece (100) to form a channel for the workpiece (100) to move.
8. A suspended chain workpiece cleaning system according to any one of claims 2-6, characterized in that, The inspection and repair area (6) is provided with a manual position, and the workpiece (100) can rotate circumferentially at the manual position; And / or, It also includes a workpiece suspension rod (10) for suspending the workpiece (100), the upper end of the workpiece suspension rod (10) is provided with a hook (101), the hook (101) is suspended on the conveying device (1) so that the workpiece can be removed from the conveying device (1) at the manual position.
9. A suspended chain workpiece cleaning system according to claim 8, characterized in that, The conveying device (1) includes a chain mounting frame (11), a chain (12), a sprocket assembly (13), a suspension frame (14), and a turntable (15); The chain (12) is installed in the chain mounting frame (11) and engages with the sprocket assembly (13) for transmission; The upper end of the suspension frame (14) is connected to the sprocket assembly (13), and the lower end is rotatably connected to the turntable (15); The turntable (15) is provided with a suspension ring (16) for connecting to the hook (101).
10. A suspended chain workpiece cleaning system according to claim 9, characterized in that, The chain (12) includes a first chain (121) and a second chain (122), wherein the first chain (121) and the second chain (122) are distributed from the inside out; The sprocket assembly (13) includes a connecting shaft (131) and sprockets (132) disposed at both ends of the connecting shaft (131). The two sprockets (132) are respectively engaged with the first chain (121) and the second chain (122) for transmission.