A forged steel piston skirt oil-immersion rust prevention device

Abstract

This invention provides a forged steel piston skirt oil-immersion rust prevention device, including a bracket, a conveying assembly mounted on the bracket, an oil tank, a magnetic flipping assembly, and an elastic flipping assembly arranged sequentially along the conveying assembly. The bracket also includes a hot air drying assembly for drying the forged steel piston skirt at the magnetic flipping assembly and the elastic flipping assembly. This device achieves the flipping of the forged steel piston skirt, ensuring that very little rust-preventive oil remains on its inner and outer surfaces after oil immersion. Then, under the action of a variable frequency fan with controllable temperature and airflow speed, the surface of the forged steel piston skirt is dried, ensuring that the rust-preventive oil layer is effectively and evenly retained on the surface of the forged steel piston skirt, achieving a comprehensive and excellent rust prevention effect.

Description

Technical Field

[0001] This utility model relates to the technical field of forged steel piston skirt processing equipment, specifically to an oil-immersion rust prevention device for forged steel piston skirts. Background Technology

[0002] After the forged steel piston skirt is forged, it undergoes a series of post-treatments such as magnetic particle inspection, shot blasting, and marking, and then undergoes rust prevention treatment before packaging. When the forged steel piston skirt cup-shaped structure is rust-proofed, in order to facilitate the final inspection of the previous process and the packaging operation of the next process, the piston skirt cup is usually placed with the opening facing upwards. After the oil is soaked, if there is too much residual oil in the cup, relying on high-pressure air blowing to clean it will cause the rust prevention effect of the internal surface to deteriorate or not be cleaned properly. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a forged steel piston skirt oil immersion rust prevention device to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: a forged steel piston skirt oil immersion rust prevention device, including a bracket, a conveying component installed on the bracket, an oil tank, a magnetic flipping component and an elastic flipping component arranged sequentially along the conveying component, and the bracket is also provided with a hot air drying component for drying the forged steel piston skirt at the magnetic flipping component and the elastic flipping component.

[0005] The conveying assembly includes a conveying chain for guiding the forged steel piston skirt and a guide wheel for changing the conveying direction of the conveying chain, so that the conveying chain is guided downward and passes through an oil tank. The oil tank is filled with rust-preventive oil so that the forged steel piston skirt can be immersed in the oil tank, thus completing the oil immersion of the forged steel piston skirt.

[0006] The hot air drying assembly includes a top cover mounted on the upper end of the support frame. The top cover is connected to a hot air duct and has air outlets distributed on it to dry the forged steel piston skirt on the conveyor chain. The magnetic flipping assembly and the elastic flipping assembly flip the forged steel piston skirt in sequence to ensure that it can be flipped evenly.

[0007] As a further embodiment of this utility model:

[0008] The conveying assembly also includes a drive wheel located on one side of the support. The drive wheel is connected to a drive motor. A counterweight wheel is installed on the support. The counterweight wheel works with the guide wheel to change the running path of the conveyor chain, thereby enabling the operation of the entire device system.

[0009] As a further embodiment of this utility model:

[0010] The conveyor chain is also provided with blocking rollers at intervals. The blocking rollers protrude from the outer end face of the conveyor chain to block and limit the forged steel piston skirt.

[0011] As a further embodiment of this utility model:

[0012] The magnetic flipping assembly includes a magnetic platform set at the upper end of the conveyor chain and a flipping motor that controls the rotation of the magnetic platform. An electromagnet for attracting a forged steel piston skirt is fixedly installed on the magnetic platform, and a proximity sensor for detecting whether the forged steel piston skirt is in place is provided at the corresponding position of the bracket.

[0013] As a further embodiment of this utility model:

[0014] The elastic flipping assembly includes an elastic hook installed at a corresponding position on the bracket. The lower end of the elastic hook is also provided with a roller that hooks onto the corner of the forged steel piston skirt to flip the forged steel piston skirt on the conveyor chain again.

[0015] As a further embodiment of this utility model:

[0016] The top cover is connected to a thermal resistance box via a hot air duct. A variable frequency fan is connected to one side of the thermal resistance box to control the speed and temperature of the airflow.

[0017] As a further embodiment of this utility model:

[0018] The support frame is equipped with a box that is fitted with the magnetic flipping component and the elastic flipping component to form a flipping drying section, thereby improving drying efficiency. The top cover is installed on the upper part of the box, and air vents are also provided on both sides of the box to facilitate hot air circulation.

[0019] As a further embodiment of this utility model:

[0020] The lower end of the bracket is also equipped with an oil return hopper to collect dripping rust-preventive oil.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] Immersion in oil ensures more comprehensive rust prevention for the forged steel piston skirt, while tumbling and drying ensures uniform oil layer on all surfaces of the piston skirt after immersion, facilitating subsequent packaging. The tumbling and drying section is mainly for turning the piston skirt over, emptying a large amount of rust-preventive oil from the bowl, and allowing the remaining rust-preventive oil to be dried by hot air blown from different angles from the top cover, thus ensuring a uniform rust-preventive oil layer.

[0023] This device achieves uniform oil layer coverage on the surface of forged steel piston skirts, providing more comprehensive rust prevention and meeting longer rust protection requirements. It seamlessly connects the previous inspection process with the next packaging process, facilitating automated operation. For steel forgings that rely on oil immersion for rust prevention, it improves the stability of rust prevention quality, reduces the labor intensity of manual operation, and increases production efficiency.

[0024] This device flips the forged steel piston skirt, leaving very little rust-preventive oil on its inner and outer surfaces after oil immersion. Then, the surface of the forged steel piston skirt is dried by a variable frequency fan with controllable temperature and airflow speed, ensuring that the rust-preventive oil layer can be effectively and evenly retained on the surface of the forged steel piston skirt, achieving a good all-round rust prevention effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the process structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the barrier roller installation structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the elastic hook structure of this utility model;

[0028] The diagram shows the following components: 1. Conveyor chain; 2. Barrier roller; 3. Oil trough; 4. Support; 5. Rust-preventive oil; 6. Air vent; 7. Proximity sensor; 8. Magnetic platform; 9. Tilting motor; 10. Top cover; 11. Elastic hook; 12. Drive motor; 13. Drive wheel; 14. Resistance temperature detector (RTD) box; 15. Variable frequency fan; 16. Counterweight wheel; 17. Guide wheel; 18. Oil return hopper; 111. Roller. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0030] like Figures 1-3 As shown,

[0031] This embodiment provides an oil-immersion rust prevention device for forged steel piston skirts, including a bracket 4, a conveying assembly mounted on the bracket 4, an oil tank 3 arranged sequentially along the conveying assembly, a magnetic flipping assembly, and an elastic flipping assembly. The bracket 4 is also provided with a hot air drying assembly for drying the forged steel piston skirt at the magnetic flipping assembly and the elastic flipping assembly.

[0032] The conveying assembly includes a conveying chain 1 for guiding the forged steel piston skirt and a guide wheel 17 for changing the conveying direction of the conveying chain 1, so that the conveying chain 1 is guided downward and passes through the oil tank 3. The oil tank is filled with rust-preventive oil 5, so that the forged steel piston skirt can be immersed in the oil tank 3 to complete the oil immersion of the forged steel piston skirt.

[0033] The hot air drying assembly includes a top cover 10 disposed on the upper end of the support 4. The top cover 10 is connected to a hot air duct and has air outlets distributed on it to dry the forged steel piston skirt on the conveyor chain 1. The magnetic flipping assembly and the elastic flipping assembly flip the forged steel piston skirt in sequence to make it flip evenly.

[0034] In this embodiment, the conveying assembly also includes a drive wheel 13 disposed on one side of the support 4. The drive wheel 13 is connected to the drive motor 12. A counterweight wheel 16 is installed on the support 4. The counterweight wheel 16 works with the guide wheel 17 to change the running path of the conveying chain 1, thereby realizing the operation of the entire device system.

[0035] The conveyor chain 1 is also provided with blocking rollers 2 at intervals. The blocking rollers 2 protrude from the outer end face of the conveyor chain 1 to block and limit the forged steel piston skirt.

[0036] In this embodiment, the magnetic attraction flipping assembly includes a magnetic platform 8 disposed at the upper end of the conveyor chain 1 and a flipping motor 9 that controls the rotation of the magnetic platform 8. An electromagnet for attracting a forged steel piston skirt is fixedly installed on the magnetic platform 8, and a proximity sensor 7 for detecting whether the forged steel piston skirt is in position is provided at a corresponding position on the bracket 4. Specifically, the magnetic platform 8 attracts the forged steel piston skirt and flips it under the control of the flipping motor 9. After the flipping is completed, the forged steel piston skirt falls onto the conveyor chain 1.

[0037] In this embodiment, the elastic flipping assembly includes an elastic hook 11 installed at a corresponding position on the bracket 4. The lower end of the elastic hook 11 is also provided with a roller 111 that hooks the corner of the forged steel piston skirt, so as to flip the forged steel piston skirt on the conveyor chain 1 again.

[0038] In this embodiment, the top cover 10 is connected to a thermal resistance box 14 via a hot air duct. A variable frequency fan 15 is connected to one side of the thermal resistance box 14 so that the speed and temperature of the airflow can be controlled by the variable frequency fan 15 and the thermal resistance box 14.

[0039] In this embodiment, the bracket 4 is provided with a box that is fitted onto the magnetic flipping component and the elastic flipping component to form a flipping drying section, thereby improving drying efficiency. The top cover 10 is installed on the upper end of the box, and air vents 6 are also provided on both sides of the box to facilitate hot air circulation.

[0040] In this embodiment, the lower end of the bracket is also provided with an oil return bucket 18 to collect the dripping rust-preventive oil 5.

[0041] The working process of this utility model is as follows:

[0042] The first stage involves completing the oil soaking process;

[0043] The variable speed drive motor 12 drives the conveyor chain to move through the drive wheel 13. The forged steel piston skirt, which has completed the final inspection of the previous process, is moved with its bowl facing upwards by the conveyor chain 1 with the blocking roller 2. It enters the oil tank 3 containing rust-preventive oil 5. After the piston skirt is completely immersed in oil, it is transported out of the oil tank 3 by the blocking roller 2 along with the conveyor chain 1.

[0044] The second stage involves rotating and drying the product.

[0045] Under the pushing action of the blocking roller 2, the forged steel piston skirt is pushed onto the fixed magnetic platform 8 equipped with an electromagnet. The blocking roller 2 continues to run and encounters the proximity sensor 7. The proximity sensor 7 transmits a signal to the magnetic platform 8. Upon receiving the signal, the magnetic platform 8 attracts the forged steel piston skirt. Simultaneously, the flipping motor 9 receives the energizing signal from the magnetic platform 8, rotates 180° counterclockwise, and disconnects the current to the magnetic platform 8. The forged steel piston skirt is flipped 180°, with its bowl facing down, and falls onto the conveyor chain 1. Under the pushing action of the blocking roller 2, it moves upwards uphill and encounters the elastic hook 11 with rollers 111. The elastic hook 11 hooks onto the corner of the forged steel piston skirt. Due to the elasticity of the hook 11 and the pushing action of the blocking roller 2, the piston skirt, pulled by the rollers 111, achieves a 180° rotation around the blocking roller 2. At this point, the bowl of the piston skirt faces upwards again, achieving a 180° rotation. During the flipping process of the forged steel piston skirt, the variable frequency fan 15 and the thermal resistance box 14 control the speed and temperature of the air blowing. The hot air is adjusted by adjusting the air outlet of the top cover 10, thereby completing the drying process of the forged steel piston skirt during the flipping process. This allows the rust-preventive oil to be evenly distributed on the inner and outer surfaces of the forged steel piston skirt, achieving a good all-round rust prevention effect.

[0046] Specifically, the two stages of this device are oil immersion and tumbling drying.

[0047] The entire device's conveyor chain 1 is connected to the drive wheel 13 via the drive motor 12. The drive wheel 13 is connected to the conveyor chain 1 and mounted on the support 4. Together with the counterweight wheel 16, it enables the operation of the entire device system.

[0048] The main purpose of the oil immersion section is to immerse the forged steel piston skirt in oil. The forged steel piston skirt must be submerged below the surface of the anti-rust oil to achieve complete surface wetting.

[0049] The main purpose of the rotating drying section is to rotate the piston skirt, pour out a large amount of rust-preventive oil from the bowl, and allow the remaining rust-preventive oil to be dried by the hot air blown out from 10 different angles from the top cover, so that the rust-preventive oil layer is evenly retained.

[0050] The two 180° flips employed different methods and had different purposes. The first flip was accomplished by pushing with the barrier roller 2 and magnetically attracting the piston skirt with the magnetic platform 8. This process involved the forged steel piston skirt cup facing downwards, ensuring that any remaining oil inside the cup was completely drained without any residue. The second flip was accomplished by using the elastic hook 11 to pull the thin edge of the forged steel piston skirt around the barrier roller 2. This process was to correct the placement of the forged steel piston skirt, ensuring that the cup faced upwards, thus facilitating subsequent packing and placement.

[0051] Immersion in oil ensures more comprehensive rust prevention for the forged steel piston skirt, while turning and drying ensures uniform oil layer on all surfaces of the piston skirt after immersion, and also facilitates subsequent packaging.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A device for oil immersion rust prevention of a forged steel piston skirt, characterized by: It includes a bracket (4), a conveying assembly mounted on the bracket (4), an oil tank (3) arranged sequentially along the conveying assembly, a magnetic flipping assembly and an elastic flipping assembly, and the bracket (4) is also provided with a hot air drying assembly for drying the forged steel piston skirt at the magnetic flipping assembly and the elastic flipping assembly; The conveying assembly includes a conveying chain (1) for guiding the forged steel piston skirt and a guide wheel (17) for changing the conveying direction of the conveying chain (1) so that the conveying chain (1) is guided downward and passes through an oil tank (3). The oil tank is filled with rust-preventive oil (5) so that the guiding forged steel piston skirt can be immersed in the oil tank (3). The hot air drying assembly includes a top cover (10) set on the upper end of the support (4). The top cover (10) is connected to a hot air pipe. Air outlets are distributed on the top cover (10) to dry the forged steel piston skirt on the conveyor chain (1). The magnetic flipping assembly and the elastic flipping assembly flip the forged steel piston skirt in sequence.

2. A device for oil immersion of a forged steel piston skirt according to claim 1, characterized in that: The conveying assembly also includes a drive wheel (13) disposed on one side of the support (4). The drive wheel (13) is connected to the drive motor (12) for transmission. A counterweight wheel (16) is installed on the support (4). The counterweight wheel (16) works with the guide wheel (17) to change the running path of the conveying chain (1).

3. A device for oil immersion of a forged steel piston skirt according to claim 2, characterized in that: The conveyor chain (1) is also provided with blocking rollers (2) at intervals. The blocking rollers (2) protrude from the outer end face of the conveyor chain (1) to block and limit the forged steel piston skirt.

4. A device for oil immersion of a forged steel piston skirt according to claim 3, characterized in that: The magnetic attraction flipping assembly includes a magnetic attraction platform (8) set at the upper end of the conveyor chain (1) and a flipping motor (9) for controlling the rotation of the magnetic attraction platform (8). An electromagnet for attracting the forged steel piston skirt is fixedly installed on the magnetic attraction platform (8), and a proximity sensor (7) for detecting whether the forged steel piston skirt is in place is provided at the corresponding position of the bracket (4).

5. A device for oil immersion of a forged steel piston skirt according to claim 4, characterized in that: The elastic flipping assembly includes an elastic hook (11) installed at the corresponding position on the bracket (4). The lower end of the elastic hook (11) is also provided with a roller (111) that hooks the corner of the forged steel piston skirt so as to flip the forged steel piston skirt on the conveyor chain (1) again.

6. A device for oil immersion of a forged steel piston skirt according to claim 1, characterized in that: The top cover (10) is connected to a thermal resistance box (14) via a hot air pipe. A variable frequency fan (15) is connected to one side of the thermal resistance box (14) so ​​that the speed and temperature of the airflow can be controlled by the variable frequency fan (15) and the thermal resistance box (14).

7. A device for oil immersion of a forged steel piston skirt according to claim 1, characterized in that: The bracket (4) is provided with a box fitted on the magnetic flipping component and the elastic flipping component to form a flipping drying section. The top cover (10) is installed on the upper end of the box, and air vents (6) are respectively on both sides of the box.

8. A device for oil immersion of a forged steel piston skirt according to claim 1, characterized in that: The lower end of the bracket is also provided with an oil return hopper (18) to collect dripping rust-preventive oil (5).

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