A cleaning device for powder metallurgy chain wheel before detection

Abstract

This utility model relates to a cleaning device for powder metallurgy sprockets before inspection, including a cleaning channel, a roller conveying mechanism installed in the cleaning channel to transport the sprocket forward, a blowing mechanism for blowing air, and a dust suction mechanism for vacuuming. The roller conveying mechanism includes a roller group composed of several parallel rollers and a driving component for driving the rollers to rotate. The roller group includes a front roller group and a rear roller group arranged front to back, and a flipping mechanism for picking up and flipping the sprocket is installed between the front roller group and the rear roller group. This utility model, through the combination of the blowing mechanism, the dust suction mechanism, and the flipping mechanism, thoroughly removes impurities from all surfaces of the sprocket, improving the accuracy of subsequent inspections.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy sprocket production technology, and in particular to a cleaning device for powder metallurgy sprockets before inspection. Background Technology

[0002] Powder metallurgy sprockets may have defects such as cracks, sand holes, dents, and missing teeth during the production process. Therefore, after the sprockets are processed, they are transported to testing equipment for inspection. Because powder or dust adheres to the surface of powder metallurgy sprockets, the testing equipment may misinterpret the powder or dust as defects, affecting the accuracy of the powder metallurgy sprocket inspection. Therefore, there is an urgent need for a cleaning device for powder metallurgy sprockets before inspection to remove powder or dust from the surface and improve the accuracy of subsequent inspections. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a cleaning device for powder metallurgy sprockets before inspection.

[0004] This utility model is achieved through the following technical solution: a cleaning device for powder metallurgy sprockets before inspection is provided, including a cleaning channel, a roller conveying mechanism installed in the cleaning channel to transport the sprockets forward, a blowing mechanism for blowing air, and a dust suction mechanism for suction. The roller conveying mechanism includes a roller group composed of several parallel rollers and a driving component for driving the rollers to rotate. The roller group includes a front roller group and a rear roller group arranged front and rear. A flipping mechanism for picking up the sprockets and flipping the sprockets is installed between the front roller group and the rear roller group.

[0005] Preferably, the cleaning channel includes a base plate, two side plates whose lower ends are fixed to the base plate, and a top plate installed on the top of the two side plates.

[0006] Preferably, the top plate is connected to the two side plates by bolts, and the top plate can be disassembled for easy maintenance.

[0007] Preferably, each idler roller is rotatably connected to a side plate at both ends via a central shaft, and the driving component includes a drive motor for driving the idler roller to rotate. Each pair of adjacent idler rollers is connected by a chain drive assembly.

[0008] Preferably, one end of one idler roller is connected to the output shaft of the drive motor, and the adjacent idler rollers transmit power through a chain drive assembly. Each chain drive assembly includes two sprockets and a chain connecting the two sprockets. The two sprockets are respectively mounted on the end central shafts of the two adjacent idler rollers.

[0009] Preferably, the purging mechanism includes a bottom blowing pipe mounted on the base plate and a side blowing pipe mounted on the side plate.

[0010] Preferably, multiple upward-facing bottom air nozzles are fixed to the bottom air pipe, located within the gap between adjacent idler rollers. These nozzles blow air upwards through the gap to clean the sprocket. Multiple downward-facing side air nozzles are fixed to the side air pipe. These nozzles blow air towards the sprocket for cleaning.

[0011] Preferably, there are two bottom-blowing air pipes and two side-blowing air pipes, which are arranged along the conveying direction of the sprocket. Each of the two side-blowing air pipes is fixed on a side plate, and the bottom-blowing air pipe and the side-blowing air pipe are respectively connected to the blower through pipelines.

[0012] Preferably, the dust collection mechanism includes an air suction pipe and several dust suction heads mounted on the air suction pipe. Each dust suction head is a long, flat nozzle. The air suction pipe is connected to a negative pressure collection box via a pipeline. The negative pressure collection box uses a negative pressure fan to generate negative pressure, drawing dust into the collection box for collection and processing.

[0013] In this embodiment, the suction pipe is fixed to the top plate.

[0014] Preferably, the upper surface of the rear idler group is lower than that of the front idler group.

[0015] Preferably, the flipping mechanism includes a flip plate, an electromagnet mounted on the flip plate, and a motor that drives the flip plate to rotate. The flip plate is rotatably connected to two side plates via a rotating shaft.

[0016] Preferably, the motor output shaft is connected to the rotating shaft, and photoelectric switches for detecting the position of the sprocket are installed on the corresponding top and bottom plates at the rear of the front idler group.

[0017] Preferably, the photoelectric switch is a through-beam photoelectric switch, with the transmitter of the photoelectric switch mounted on the top plate and the receiver of the photoelectric switch mounted on the bottom plate.

[0018] Preferably, the photoelectric switch is connected to the controller of the drive motor, the controller of the electric motor, and the controller of the electromagnet, respectively. The structure of the photoelectric switch, the circuit connection method between it and each controller, and the working principle are all existing technologies and will not be described in detail here.

[0019] When the photoelectric switch detects that the sprocket has reached the rear of the front idler group, it transmits a signal to the controllers of the drive motor, the electric motor, and the electromagnet. Then, the drive motor stops moving, causing the sprocket to pause conveying. The electric motor starts, causing the flap to flip forward. The electromagnet is energized and attracts the sprocket. Then, the electric motor reverses, causing the flap to flip backward. After that, the electromagnet is de-energized, and the sprocket slides onto the rear idler group. The drive motor starts, causing the sprocket to flip over and continue conveying backward.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention uses a blowing mechanism, a dust suction mechanism, and a flipping mechanism to thoroughly remove impurities from all surfaces of the sprocket, ensuring that the sprocket surface is free of dust and other impurities before testing, thereby improving the accuracy of subsequent testing and further increasing testing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the longitudinally sectional structure of the cleaning channel of this utility model;

[0023] Figure 2 This is a schematic diagram of another longitudinally sectional view of the cleaning channel of this utility model;

[0024] Figure 3 This is a top view of the horizontally sectional structure of the cleaning channel of this utility model;

[0025] As shown in the figure:

[0026] 1. Sprocket, 2. Base plate, 3. Side plate, 4. Top plate, 5. Conveyor, 6. Feed conveyor area, 7. Idler roller, 8. Chain drive assembly, 9. Bottom air pipe, 10. Side air pipe, 11. Bottom air nozzle, 12. Side air nozzle, 13. Suction pipe, 14. Dust suction head, 15. Flip plate, 16. Electromagnet. Detailed Implementation

[0027] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0028] like Figure 1-3 As shown, this utility model includes a cleaning channel, a roller conveying mechanism installed in the cleaning channel and capable of conveying the sprocket 1 to move it forward, a blowing mechanism for blowing air, and a dust suction mechanism for vacuuming.

[0029] The cleaning channel includes a base plate 2, two side plates 3 fixed to the base plate 2 at their lower ends, and a top plate 4 installed on the top of the two side plates 3. In this embodiment, the top plate 4 is bolted to the two side plates 3, and the top plate 4 is detachable for easy maintenance. The cleaning channel is installed between the conveyor 5 and the testing equipment. The powder metallurgy sprocket 1 is conveyed by the conveyor 5 to the cleaning channel for cleaning and then enters the feeding conveying area 6 of the testing equipment. In this embodiment, both the conveyor 5 and the feeding conveying area 6 of the testing equipment are belt conveyors.

[0030] The idler roller conveying mechanism includes an idler roller group consisting of several parallel idler rollers and a drive unit for rotating the idler rollers 7. Each idler roller 7 has its two ends rotatably connected to a side plate 3 via a central shaft. The drive unit includes a drive motor for rotating the idler rollers 7. Each pair of adjacent idler rollers 7 is connected via a chain drive group 8. One end of one idler roller 7 is connected to the output shaft of the drive motor. Power is transmitted between adjacent idler rollers 7 through the chain drive group 8. Each chain drive group 8 includes two sprockets 1 and a chain connecting the two sprockets 1. The two sprockets 1 are respectively mounted on the central shafts at the ends of two adjacent idler rollers 7. The specific structure and working principle of the chain drive group 8 are existing technologies and will not be described in detail here. Power is provided by the drive motor, and the power is transmitted through the chain drive group 8 to rotate each idler roller 7.

[0031] The purging mechanism includes a bottom-blowing air pipe 9 mounted on the base plate 2 and a side-blowing air pipe 10 mounted on the side plate 3. Multiple upward-facing bottom-blowing air nozzles 11 are fixed to the bottom-blowing air pipe 9, located within the gaps between adjacent idler rollers 7. The bottom-blowing air nozzles 11 blow air upwards through the gaps between adjacent idler rollers 7 to clean the sprocket 1. Multiple downward-facing side-blowing air nozzles 12 are fixed to the side-blowing air pipe 10, blowing air towards the sprocket 1 for cleaning. In this embodiment, there are two bottom-blowing air pipes 9 and two side-blowing air pipes 10, arranged along the conveying direction of the sprocket 1. Each of the two side-blowing air pipes 10 is fixed to one side plate 3. The bottom-blowing air pipe 9 and the side-blowing air pipe 10 are respectively connected to a blower via pipelines.

[0032] The dust collection mechanism includes a suction pipe 13 and several suction heads 14 mounted on the suction pipe 13. Each suction head 14 is a long, flat nozzle. The suction pipe 13 is connected to a negative pressure collection box via a pipeline. The negative pressure collection box has an existing structure, the structure of which will not be described in detail here. The negative pressure collection box uses a negative pressure fan to generate negative pressure, drawing dust into the collection box for collection. In this embodiment, the suction pipe 13 is fixed to the top plate 4.

[0033] The idler roller assembly includes a front idler roller assembly and a rear idler roller assembly arranged one behind the other. A flipping mechanism for picking up and flipping the sprocket 1 is installed between the front and rear idler roller assemblies. In this embodiment, the upper surface of the rear idler roller assembly is lower than that of the front idler roller assembly. The flipping mechanism includes a flip plate 15, an electromagnet 16 mounted on the flip plate 15, and a motor for driving the flip plate 15 to rotate. The flip plate 15 is rotatably connected to two side plates 3 via a rotating shaft. In this embodiment, the front-to-back direction is defined according to the conveying direction of the sprocket 1, and the sprocket 1 conveys from front to back.

[0034] The motor output shaft is connected to the rotating shaft. A photoelectric switch for detecting the position of the sprocket 1 is installed on the top plate 4 and bottom plate 2 corresponding to the rear of the front idler roller group. In this embodiment, the photoelectric switch is a through-beam photoelectric switch. The transmitter of the photoelectric switch is installed on the top plate 4, and the receiver of the photoelectric switch is installed on the bottom plate 2.

[0035] The photoelectric switch is connected to the controller of the drive motor, the controller of the electric motor, and the controller circuit of the electromagnet 16. The structure of the photoelectric switch, the circuit connection method between it and each controller, and the working principle are all existing technologies and will not be described in detail here.

[0036] When the photoelectric switch detects that sprocket 1 has reached the rear of the front idler group, it transmits a signal to the controller of the drive motor, the controller of the electric motor, and the controller of the electromagnet 16. Then, the drive motor stops moving, causing sprocket 1 to pause conveying. The electric motor starts, causing the flip plate 15 to flip forward. The electromagnet 16 is energized to attract sprocket 1. Then, the electric motor reverses, causing the flip plate 15 to flip backward. Then, the electromagnet 16 is de-energized, and sprocket 1 slides onto the rear idler group. The drive motor starts, causing sprocket 1 to flip over and continue conveying backward.

[0037] In practice, sprocket 1 is conveyed to the cleaning channel by conveyor 5, where it is cleaned by a front-end blowing and vacuuming mechanism. Then, a flipping mechanism flips sprocket 1 over, and it is cleaned again by a rear-end blowing and vacuuming mechanism. This flipping and cleaning process further improves the cleaning effect on all sides of sprocket 1, achieving thorough cleaning and enhancing the overall cleaning efficiency.

[0038] This invention uses a blowing mechanism, a dust suction mechanism, and a flipping mechanism to thoroughly remove impurities from all surfaces of the sprocket 1, ensuring that the surface of the sprocket 1 is free of dust, dirt, and other impurities before testing, thereby improving the accuracy of subsequent testing and further increasing testing efficiency.

[0039] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A cleaning device for powder metallurgy sprockets before inspection, characterized in that: It includes a cleaning channel, a roller conveying mechanism installed in the cleaning channel and capable of conveying sprockets to move them forward, a blowing mechanism for blowing air, and a dust suction mechanism for vacuuming. The roller conveying mechanism includes a roller group consisting of several parallel rollers and a drive unit for driving the rollers to rotate. The roller group includes a front roller group and a rear roller group arranged front and rear. A flipping mechanism for picking up sprockets and flipping the sprockets is installed between the front roller group and the rear roller group.

2. The cleaning device for powder metallurgy sprockets before inspection according to claim 1, characterized in that: The cleaning channel includes a base plate, two side plates fixed to the base plate at their lower ends, and a top plate installed on the top of the two side plates.

3. The cleaning device for powder metallurgy sprockets before inspection according to claim 1, characterized in that: Each idler roller is rotatably connected to a side plate at both ends via a central shaft. The driving component includes a drive motor that drives the idler roller to rotate, and each pair of adjacent idler rollers is connected by a chain drive assembly.

4. The cleaning device for powder metallurgy sprockets before inspection according to claim 1, characterized in that: The purging mechanism includes a bottom blowing pipe mounted on the base plate and a side blowing pipe mounted on the side plate.

5. The cleaning device for powder metallurgy sprockets before inspection according to claim 4, characterized in that: Multiple bottom air nozzles with upward air jet direction are fixed on the bottom air blowing pipe, and the multiple bottom air nozzles are located in the gap between two adjacent idler rollers. Multiple side air nozzles with downward air jet direction are fixed on the side air blowing pipe.

6. The cleaning device for powder metallurgy sprockets before inspection according to claim 4, characterized in that: There are two bottom-blowing air pipes and two side-blowing air pipes, which are arranged along the conveying direction of the sprocket. Each of the two side-blowing air pipes is fixed on a side plate. The bottom-blowing air pipe and the side-blowing air pipe are respectively connected to the blower through pipelines.

7. The cleaning device for powder metallurgy sprockets before inspection according to claim 1, characterized in that: The vacuuming mechanism includes a suction pipe and several vacuum heads mounted on the suction pipe. Each vacuum head is a long, flat nozzle. The suction pipe is connected to a negative pressure collection box via a pipeline.

8. The cleaning device for powder metallurgy sprockets before inspection according to claim 1, characterized in that: The flipping mechanism includes a flip plate, an electromagnet mounted on the flip plate, and a motor that drives the flip plate to rotate. The flip plate is rotatably connected to two side plates via a rotating shaft.

9. The cleaning device for powder metallurgy sprockets before inspection according to claim 8, characterized in that: The motor output shaft is connected to the rotating shaft, and photoelectric switches for detecting the position of the sprocket are installed on the corresponding top and bottom plates at the rear of the front idler group.

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