A quench part residual oil purging mechanism and method

Abstract

The present application relates to the technical field of part processing, and discloses a quenching part residual oil blowing mechanism and method, which comprises a shell and a blowing assembly; the blowing assembly comprises a lifting frame, a rotating shaft, a mounting shell, an air knife, a swing plate, a swing member and a driving member; after the quenched parts are sent to the blowing station by the conveying chain at the top of the shell and stopped, the blowing assembly on one side is started first; the driving member on the side drives the lifting frame to reciprocatingly lift, and the swing member drives the swing plate to reciprocatingly swing, thereby driving the mounting shell and the air knife to swing, so that the air knife reciprocatingly swings in the lifting process; the high-pressure gas sprayed by the air knife blows the surface and the side surface of the parts; after the blowing on the side is completed; the conveying chain moves the parts to the position of the other blowing assembly; then the blowing assembly on the side is started; and the other side of the parts and the residual oil area which has not been completely removed are supplemented and blown through the composite motion of lifting and swinging.

Description

Technical Field

[0001] This invention relates to the field of parts processing technology, and in particular to a mechanism and method for purging residual oil from quenched parts. Background Technology

[0002] After quenching, a large amount of quenching oil usually remains on the surface of the parts and the tooling trays. Traditionally, this oil is removed by natural drainage or by blowing with a fixed air knife. Among these methods, the fixed air knife is widely used in the oiling station of the heat treatment production line due to its simple structure and low cost.

[0003] However, when a fixed air knife is in operation, the airflow impacts the surface of the part at a constant angle. This is sufficient for simple planar parts, but for parts with grooves, gaps, edges, or complex geometric features, the fixed-angle airflow cannot effectively reach these hidden areas, resulting in residual oil accumulating and creating blind spots for cleaning. Even with dual air knives (top and bottom) or multi-directional arrangements, the fixed airflow direction still cannot completely remove oil from irregularly shaped areas. Summary of the Invention

[0004] The purpose of this invention is to provide a residual oil blowing mechanism and method for quenched parts, which solves the problem that the existing fixed air knife has a blowing dead angle due to the constant airflow direction, making it difficult to remove residual oil from hidden parts such as grooves and gaps.

[0005] To achieve the above objectives, the present invention provides a residual oil purging mechanism for quenched parts, including a housing and a purging assembly; the purging assembly includes a lifting frame, a rotating shaft, a mounting shell, an air knife, a swing plate, a swinging component, and a driving component. The driving component is disposed inside the housing, the lifting frame is slidably connected to the housing via the driving component, the rotating shaft is rotatably connected to the lifting frame, the mounting shell is fixedly connected to the rotating shaft, the air knife is fixedly connected to the mounting shell, the swing plate is fixedly connected to the mounting shell and located on one side of the mounting shell, and the swinging component is disposed on the lifting frame and is used to drive the swing plate to reciprocate.

[0006] The driving component includes a drive motor, a threaded rod, and a threaded sleeve. The threaded rod is rotatably connected to the housing and is located inside the housing. The drive motor is connected to the housing, and the output end of the drive motor passes through the housing and is connected to the threaded rod. The threaded sleeve is fixedly connected to the lifting frame and threadedly connected to the threaded rod, and is sleeved on the threaded rod.

[0007] The driving component further includes a guide rod and a guide sleeve. The guide rod is fixedly connected to the housing and located inside the housing. The guide sleeve is fixedly connected to the lifting frame and slidably connected to the guide rod, and is sleeved on the guide rod.

[0008] The swinging component includes a cam, a rack, and a gear. The rack is fixedly connected to the housing and located inside the housing. The gear is rotatably connected to the lifting frame and meshes with the rack. The cam is fixedly connected to the gear and contacts the swing plate.

[0009] The swinging component further includes an elastic rod, which is disposed on the lifting frame and contacts the swing plate. The elastic rod applies a downward force to the swing plate, so that the swing plate is always in contact with the cam.

[0010] The purging assembly further includes a connecting pipe and an oil mist purifier. The connecting pipe is fixedly connected to the housing and communicates with the housing. The oil mist purifier is fixedly connected to the housing and communicates with the connecting pipe.

[0011] The purging assembly also includes a shielding curtain, which is connected to and disposed on the housing.

[0012] On the other hand, the present invention also includes a method for purging residual oil from quenched parts, comprising the following steps:

[0013] The quenched parts, along with the material tray, are fed into the housing via a conveyor chain and positioned at the purging station.

[0014] Activate the purging assembly on one side. The drive component on that side drives the lifting frame to rise and fall at a constant speed. At the same time, the swing component drives the swing plate to swing the air knife back and forth during the lifting process. The air knife sprays high-pressure gas to purge the surface of the parts.

[0015] After the purging on one side is completed, the conveyor chain will move the part forward to the purging station corresponding to the purging assembly on the other side;

[0016] Activate the purging assembly on the other side, similarly drive its lifting frame to rise and fall and drive the air knife to swing back and forth, and supplement the purging of residual oil areas on the parts that have not been completely removed from different angles;

[0017] After both sides are purged, the conveyor chain sends the cleaned parts out of the housing, and the residual oil that falls off during purging is collected in the oil collection tank.

[0018] This invention discloses a residual oil blowing mechanism and method for quenched parts. It utilizes vertically oriented and oscillating air knives arranged staggered on both sides of a housing. During operation, a drive component moves the lifting frame at a uniform speed, while a oscillating component, via rack and pinion transmission, drives a cam to push an oscillating plate, causing the air knives to automatically oscillate back and forth during the lifting process. High-pressure airflow impacts the part surface at a dynamically changing incident angle, effectively disrupting the surface tension of the residual oil and blowing away oil from hidden areas such as grooves and crevices. The air knives on both sides sequentially perform scanning blowing at different angles, forming a relay-style cleaning process, eliminating the blind spots commonly found with fixed-angle air knives. An oil collection tank collects and reuses the blown-off residual oil. This invention features a compact structure, high automation, and improved residual oil removal rates for parts of various shapes, reducing subsequent cleaning burdens and quenching oil consumption. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of the residual oil blowing mechanism for quenched parts according to the first embodiment of the present invention.

[0021] Figure 2 This is the first embodiment of the present invention. Figure 1 Enlarged view of point A.

[0022] Figure 3 This is a schematic diagram of the installation structure of the guide sleeve according to the first embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the gear mounting structure according to the first embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the installation structure of the push rod according to the first embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the installation structure of the oil mist purifier according to the second embodiment of the present invention.

[0026] Figure 7 This is a flowchart of the method for purging residual oil from quenched parts according to the present invention.

[0027] In the diagram: 101-Outer shell, 102-Purge assembly, 103-Lifting frame, 104-Rotating shaft, 105-Mounting shell, 106-Air knife, 107-Swing plate, 108-Swing component, 109-Drive component, 110-Drive motor, 111-Threaded rod, 112-Threaded sleeve, 113-Guide rod, 114-Guide sleeve, 115-Cam, 116-Rack, 117-Gear, 118-Elastic rod, 119-Outer shell, 120-Spring, 121-Push rod, 122-Rod body, 123-Ball bearing, 124-Oil collection tank, 201-Connecting pipe, 202-Oil mist purifier, 203-Shielding curtain. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0029] First embodiment:

[0030] Please see Figures 1-5 , Figure 1 This is a schematic diagram of the overall structure of the residual oil blowing mechanism for quenched parts according to the first embodiment of the present invention. Figure 2 This is the first embodiment of the present invention. Figure 1 Enlarged view of point A. Figure 3 This is a schematic diagram of the installation structure of the guide sleeve according to the first embodiment of the present invention. Figure 4 This is a schematic diagram of the gear mounting structure according to the first embodiment of the present invention. Figure 5 This is a schematic diagram of the installation structure of the push rod according to the first embodiment of the present invention. The present invention provides a residual oil blowing mechanism for quenched parts, including a housing 101 and a blowing assembly 102. The blowing assembly 102 includes a lifting frame 103, a rotating shaft 104, a mounting shell 105, an air knife 106, a swing plate 107, a swing component 108, and a driving component 109. The driving component 109 drives the air knife 106 to rise and fall, while the swing component 108 causes the air knife 106 to swing back and forth, allowing the high-pressure airflow to impact the surface of the part at a dynamically changing incident angle. This solves the problem that fixed air knives, due to their constant airflow direction, have difficulty removing residual oil from hidden areas such as grooves and crevices. It is understood that the aforementioned solution can be used in degreasing scenarios after quenching of parts of various shapes in heat treatment production lines.

[0031] In this specific embodiment, the driving component 109 is disposed inside the outer casing 101. The lifting frame 103 is slidably connected to the outer casing 101 via the driving component 109. The rotating shaft 104 is rotatably connected to the lifting frame 103. The mounting shell 105 is fixedly connected to the rotating shaft 104. The air knife 106 is fixedly connected to the mounting shell 105. The swing plate 107 is fixedly connected to the mounting shell 105 and located on one side of the mounting shell 105. The swing component 108 is disposed on the lifting frame 103 and is used to drive the swing plate 107 to reciprocate. An oil collection trough 124 is provided at the bottom of the outer casing 101 for collecting the oil blown down. The residual oil is guided back to the quenching oil tank. The top of the inner shell 101 is provided with a conveyor chain or roller conveyor (not shown in the figure) for conveying the quenched parts and positioning them in the purging station. The air knife 106 is connected to the air supply system through a flexible high-pressure air pipe to realize the continuous or pulsed supply of compressed air or blower airflow. There are two purging components 102, which are located on the left and right sides of the shell 101 respectively, and the two purging components 102 are staggered in front and behind. The driving component 109 can drive the lifting frame 103 to move up and down. The air knife 106 drives the swing plate 107 to swing back and forth through the swing component 108, so that the mounting shell 105 together with the air knife 106 can swing periodically around the rotating shaft 104.

[0032] After the quenched parts are conveyed to the purging station by the conveyor chain at the top of the housing 101 along with the material tray and then stop, the purging assembly 102 on one side is started first. The drive component 109 on this side drives the lifting frame 103 to reciprocate up and down, while the swing component 108 drives the swing plate 107 to reciprocate, thereby causing the mounting housing 105 and the air knife 106 to swing. The air knife 106 reciprocates during the lifting process, and the high-pressure gas sprayed by the air knife 106 purifies the surface and sides of the parts. After the purging of this side is completed, the conveyor chain moves the parts forward to another purging assembly. Positioning the part 102, the blowing assembly 102 on that side is then activated. Similarly, through a combination of lifting and swinging motions, the other side of the part and areas with residual oil that have not been completely removed are further bleed. After both sides are bleed, the part is conveyed out of the housing 101 by the conveyor chain. The present invention drives the air knife 106 to swing back and forth during the lifting process through the swinging component 108, so that the high-pressure airflow impacts the surface of the part with a dynamically changing incident angle, effectively breaking the surface tension of the quenching oil and blowing it away from hard-to-reach areas such as grooves, gaps, and edges, eliminating the dead angles that exist in fixed-angle blowing, and significantly improving the residual oil removal rate of parts of various shapes.

[0033] The driving component 109 includes a driving motor 110, a threaded rod 111, and a threaded sleeve 112. The threaded rod 111 is rotatably connected to the housing 101 and is located inside the housing 101. The driving motor 110 is connected to the housing 101, and the output end of the driving motor 110 passes through the housing 101 and is connected to the threaded rod 111. The threaded sleeve 112 is fixedly connected to the lifting frame 103 and threadedly connected to the threaded rod 111, and is sleeved on the threaded rod 111. The two ends of the threaded rod 111 are rotatably connected to the housing 101 through rolling bearings. The driving motor 110 is a servo motor, and its output shaft is coaxially fixed to the threaded rod 111 through a coupling. When the driving motor 110 rotates forward and reverse, the threaded rod 111 drives the threaded sleeve 112 and the lifting frame 103 to rise and fall in the vertical direction, thereby realizing the adjustment of the height of the air knife 106.

[0034] Secondly, the driving component 109 also includes a guide rod 113 and a guide sleeve 114. The guide rod 113 is fixedly connected to the outer shell 101 and is located inside the outer shell 101. The guide sleeve 114 is fixedly connected to the lifting frame 103 and slidably connected to the guide rod 113, and is sleeved on the guide rod 113. The guide rod 113 guides the lifting of the guide sleeve 114, thereby guiding the lifting of the lifting frame 103 and improving the stability of the lifting frame 103 during lifting.

[0035] Meanwhile, the swing component 108 includes a cam 115, a rack 116, and a gear 117. The rack 116 is fixedly connected to the housing 101 and located inside the housing 101. The gear 117 is rotatably connected to the lifting frame 103 and meshes with the rack 116. The cam 115 is fixedly connected to the gear 117 and contacts the swing plate 107. The rack 116 is vertically fixed to the inner wall of the housing 101, and its length matches the lifting stroke of the lifting frame 103. The gear 117 is rotatably mounted on the lifting frame 103 and always meshes with the rack 116. When the lifting frame 103 moves up and down, the gear 117 rolls along the rack 116 and drives the cam 115 to rotate. The contour surface of the cam 115 pushes the swing plate 107 to swing around the rotating shaft 104, thereby realizing the automatic swing of the air knife 106 during the lifting process.

[0036] In addition, the swing member 108 also includes an elastic rod 118, which is disposed on the lifting frame 103 and contacts the swing plate 107. The elastic rod 118 applies a downward force to the swing plate 107, so that the swing plate 107 is always in contact with the cam 115. The lower end of the elastic rod 118 abuts against the upper surface of the swing plate 107. The elastic rod 118 uses elastic force to press the swing plate 107 against the profile of the cam 115, ensuring that the swing plate 107 can closely follow the cam 115 when it rotates.

[0037] Then, the elastic rod 118 includes a housing 119, a spring 120, and a push rod 121. The housing 119 is fixedly connected to the lifting frame 103 and is located on one side of the lifting frame 103. The push rod 121 is slidably connected to the housing 119. The two ends of the spring 120 are respectively connected to the housing 119 and the push rod 121, and the spring 120 is disposed inside the housing 119. The housing 119 is a cylindrical structure with one end open. The spring 120 is placed in the inner cavity of the housing 119. One end of the push rod 121 extends into the housing 119 and compresses the spring 120. The other end extends out of the housing 119 and contacts the swing plate 107. The push rod 121 is driven to descend by the elastic force of the spring 120, thereby pressing the swing plate 107 onto the cam 115.

[0038] Finally, the push rod 121 includes a rod body 122 and a ball bearing 123. The rod body 122 is slidably connected to the housing 119 and connected to the spring 120. The ball bearing 123 is connected to the rod body 122 and is located at one end of the rod body 122 near the swing plate 107. A groove is provided at the front end of the rod body 122, and the ball bearing 123 is embedded in the groove and can roll freely. The ball bearing 123 directly contacts the surface of the swing plate 107, converting sliding friction into rolling friction, reducing wear and motion resistance, and making the swing smoother and more reliable.

[0039] Second embodiment:

[0040] Based on the first embodiment, please refer to Figure 6. Figure 6 This is a schematic diagram of the installation structure of the oil mist purifier in the second embodiment. The purging assembly 102 in this embodiment also includes a connecting pipe 201 and an oil mist purifier 202.

[0041] In this specific embodiment, the connecting pipe 201 is fixedly connected to and communicates with the outer shell 101; the oil mist purifier 202 is fixedly connected to the outer shell 101 and communicates with the connecting pipe 201; the oil mist purifier 202 integrates a fan, and after the fan is started, a negative pressure is formed inside the outer shell 101, drawing the oil mist generated during purging into the oil mist purifier 202 through the connecting pipe 201. The oil mist is collected and processed inside the oil mist purifier 202, while the purified air is discharged; the oil mist purifier 202 is prior art, and its specific working principle will not be described in detail here.

[0042] The purging assembly 102 also includes a shielding curtain 203, which is connected to and mounted on the housing 101. Multiple shielding curtains 203 are provided, and each shielding curtain is made of oil-resistant rubber or polyurethane. They are installed at the part inlet and outlet of the housing 101, respectively. The upper end of the shielding curtain 203 is fixed to the frame of the housing 101 by a pressure strip, and the lower end hangs freely. When the part passes through with the material tray, the curtain is pushed open and automatically rebounds, thereby effectively blocking the oil mist from spreading outward without interfering with the conveying process, and without affecting normal observation and maintenance.

[0043] The residual oil blowing mechanism for quenched parts of the present invention utilizes air knives 106 arranged staggered on the left and right sides of the outer casing 101, which are liftable and swingable. A driving component 109 drives a lifting frame 103 to rise and fall at a uniform speed. Simultaneously, a rack and pinion 116 and gear 117 drive a cam 115 to push a swing plate 107, driving the air knives 106 to automatically swing back and forth during the rising and falling process. This achieves a scanning blowing of the part surface with a dynamically changing incident angle using high-pressure airflow. The air knives 106 on both sides sequentially clean the part at different angles, completely eliminating the common blind spots caused by fixed-angle air knives 106. Meanwhile, the oil collection tank 124 recovers and reuses the blown-off residual oil. The oil mist purifier 202 and the shielding curtain 203 work together to effectively prevent oil mist overflow, significantly improving the workshop environment. This mechanism has a compact structure and a high degree of automation, capable of adapting to the oil removal needs of various parts such as gears, shafts, and irregularly shaped parts after quenching, greatly improving the residual oil removal rate and reducing the burden of subsequent cleaning and quenching oil consumption.

[0044] On the other hand, please see Figure 7 The present invention also includes a method for purging residual oil from quenched parts, comprising the following steps:

[0045] S1: The quenched parts, along with the material tray, are fed into the housing via a conveyor chain and positioned at the purging station.

[0046] S2: Activate the purging assembly on one side. The drive component on that side drives the lifting frame to rise and fall at a constant speed. At the same time, the swing component drives the swing plate to swing the air knife back and forth during the lifting process. The air knife sprays high-pressure gas to purge the surface of the parts.

[0047] S3: After the purging on this side is completed, the conveyor chain will move the part forward to the purging station corresponding to the purging assembly on the other side;

[0048] S4: Start the purging assembly on the other side, similarly drive its lifting frame to rise and fall and drive the air knife to swing back and forth, and supplement the purging of the residual oil area of ​​the parts that has not been completely removed from different angles;

[0049] S5: After both sides are purged, the conveyor chain sends the cleaned parts out of the housing, and the residual oil that falls off during purging is collected in the oil collection tank.

[0050] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A residual oil purging mechanism for quenched parts, comprising a housing, characterized in that, It also includes a purging assembly; The purging assembly includes a lifting frame, a rotating shaft, a mounting housing, an air knife, a swing plate, a swinging component, and a driving component. The driving component is disposed inside the housing. The lifting frame is slidably connected to the housing via the driving component. The rotating shaft is rotatably connected to the lifting frame. The mounting housing is fixedly connected to the rotating shaft. The air knife is fixedly connected to the mounting housing. The swing plate is fixedly connected to the mounting housing and located on one side of the mounting housing. The swinging component is disposed on the lifting frame and is used to drive the swing plate to reciprocate.

2. The residual oil blowing mechanism for quenched parts as described in claim 1, characterized in that, The driving component includes a drive motor, a threaded rod, and a threaded sleeve. The threaded rod is rotatably connected to the housing and is located inside the housing. The drive motor is connected to the housing, and the output end of the drive motor passes through the housing and is connected to the threaded rod. The threaded sleeve is fixedly connected to the lifting frame and threadedly connected to the threaded rod, and is sleeved on the threaded rod.

3. The residual oil blowing mechanism for quenched parts as described in claim 2, characterized in that, The driving component further includes a guide rod and a guide sleeve. The guide rod is fixedly connected to the housing and located inside the housing. The guide sleeve is fixedly connected to the lifting frame and slidably connected to the guide rod, and is sleeved on the guide rod.

4. The residual oil blowing mechanism for quenched parts as described in claim 1, characterized in that, The swinging component includes a cam, a rack, and a gear. The rack is fixedly connected to the housing and located inside the housing. The gear is rotatably connected to the lifting frame and meshes with the rack. The cam is fixedly connected to the gear and contacts the swing plate.

5. The residual oil blowing mechanism for quenched parts as described in claim 4, characterized in that, The swinging component also includes an elastic rod, which is disposed on the lifting frame and contacts the swing plate. The elastic rod applies a downward force to the swing plate, so that the swing plate is always in contact with the cam.

6. The residual oil blowing mechanism for quenched parts as described in claim 1, characterized in that, The purging assembly also includes a connecting pipe and an oil mist purifier. The connecting pipe is fixedly connected to the housing and communicates with the housing; the oil mist purifier is fixedly connected to the housing and communicates with the connecting pipe.

7. The residual oil blowing mechanism for quenched parts as described in claim 1, characterized in that, The purging assembly also includes a shielding curtain, which is connected to and disposed on the housing.

8. A method for purging residual oil from quenched parts, employing the residual oil purging mechanism for quenched parts as described in any one of claims 1-7, characterized in that, Includes the following steps: The quenched parts, along with the material tray, are fed into the housing via a conveyor chain and positioned at the purging station. Activate the purging assembly on one side. The drive component on that side drives the lifting frame to rise and fall at a constant speed. At the same time, the swing component drives the swing plate to swing the air knife back and forth during the lifting process. The air knife sprays high-pressure gas to purge the surface of the parts. After the purging on one side is completed, the conveyor chain will move the part forward to the purging station corresponding to the purging assembly on the other side; Activate the purging assembly on the other side, similarly drive its lifting frame to rise and fall and drive the air knife to swing back and forth, and supplement the purging of residual oil areas on the parts that have not been completely removed from different angles; After both sides are purged, the conveyor chain sends the cleaned parts out of the housing, and the residual oil that falls off during purging is collected in the oil collection tank.

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